Selection of key equipment in the production of blockboard core board
2024-07-10 11:04:53
ã€Abstract】 The selection of key equipment for drying, jigsaw and equal production in the production of blockboard core board is introduced. According to the actual use, it is recommended to use the furnace heating dryer, BPB 1225 semi-automatic paneling machine and MB1013 planer. Keywords blockboard core board equipment selection
At present, the blockboard market is in the ascendant, with broad prospects and sales volume is increasing year by year. Because of its low investment, large profits, and easy production, many companies have adopted short-term and fast tactics and quickly put into production. Although the country's total annual output is large, due to equipment selection and production management, the quality of the products is uneven. There are not many high-quality blockboards on the market, and the prices are also quite different. In the design stage of project construction, it is of great significance to select suitable equipment and carry out reasonable process layout. On the one hand, it can make full use of raw materials, save wood resources and improve labor productivity; on the other hand, it can greatly improve product quality and increase product market competitiveness. Therefore, the rational selection of equipment is a prerequisite for good economic returns. Due to restrictions on conditions such as capital, site and raw materials, some manufacturers only produce wood core boards and supply them to the blockboard factory as core boards. The production process of the wood core board is usually: firstly, the board square material is dried to a qualified moisture content, and then transported into the workshop, the defects are cut off on the saw, and cut into short materials of less than 15 m, so as to facilitate transportation in the workshop. . The wool is leveled on a flat, planer or double-sided planer, and then cut into a certain thickness of wood strip by a saw blade and cut into a certain length by a small saw. The processed wood core strips are transported to the slabs in a concentrated manner, paved into slabs, and spliced ​​into wooden core boards by jigs or jigsaw machines. Finally, the qualified wood core board is repaired and leveled. The following is an analysis of the selection of key equipment in the processing of wood core board for reference.
1 dryer selection
Drying is the first step in product quality, and choosing the right dryer is critical. The conventional steam drying kiln is a very mature equipment, but it has a high price and a large operating cost. Small enterprises that simply manufacture wood core boards are generally unable to bear. However, the soil drying cycle is long, the efficiency is low, and the drying quality is unstable, which is difficult to meet the production needs. From the point of view of the use effect and price, it is more suitable to select a dryer with improved burner heating (for example, XDG-1 type high efficiency burner end wind type wood dryer). The burning furnace of the dryer is fueled by residuals such as sawdust and scraps, and is first burned in the furnace to generate a furnace gas as a heat carrier medium. This is a new type of efficient, energy efficient, safe and reliable drying equipment. Its working principle is that the raw materials are sent into the spiral burning furnace through the feeding fan to vortex and burn, and the generated furnace gas is modulated by dust removal and properly mixed with air to enter the drying kiln radiator. An axial fan is arranged at the top of the kiln, and the generated air volume passes through the pile and heats the wood. The brewing chamber is equipped with a circulating steam generator, which can be sprayed and tempered according to requirements to ensure the quality of wood drying. The drying chamber of the machine is in the shape of a rectangular inclined wall. The front end has a certain inclination to make the air volume evenly distributed. The rear end is composed of an axial fan, a radiator and a baffle to form a complete fan room, which is easy to maintain and maintain. The fan rotates smoothly and reliably, with high efficiency and large air volume. A rail is arranged on the ground of the drying room for the loading car to run. The wheel of the loading car has rolling bearings and is convenient to move. Take the XDG-1 end-type high-efficiency burner heating dryer with a diameter of 1100mm as an example. Its capacity is 50m3, the installed capacity is 27 50kW, and there are 2 drying rooms. The outer dimensions of the drying equipment are 19,000mm×10400mm×3400mm. If you use a double-layer brick structure kiln, you only need to invest 220,000 yuan to start running. With an average drying cycle of 10 days, two sets of such dryers can be used to meet the needs of an annual output of 3000 to 4000 m3 of wood core board. The general conventional steam drying kiln, only the metal shell type host is at least 200,000 yuan, plus the supporting costs of boilers, civil works, etc., the investment will increase several times. In contrast, the installation cost, operating cost, and equipment price of the burner dryer are much lower, while the drying cycle and drying effect are basically the same.
2 choice of jigsaw machine
The dried sheet is also subjected to cross-section, longitudinal solution and planing. The equipment used is usually flat planer, double-sided planer, multi-blade circular saw, cross-section saw, etc., which are machined by general woodworking machinery factory. The core strip can meet the process requirements. The core strips are made into a wood core board, which is extraordinarily cautious in the process and equipment selection. The wood core board is manufactured by applying glue on the side of the core strip and bonding it laterally. The glue of the wood core strip can be processed by manual work or special machine tool, and the glue method includes hot pressing and cold pressing. Manual work is relatively primitive and low productivity, only suitable for factories with small production. The worker uses a brush to apply glue on one side of the core strip, then forms the rubber core strip into a wood core slab according to the specified size, and then clamps the assembled core slab, and then unloads the glue after the glue is solidified. This method is relatively backward, the production cycle is long, the strength of the wood core board is poor, the core strip is easy to fall off, and the thickness is not uniform, but the equipment cost is low. The complete set of automatic core board splicing machine saves labor and time, high quality, but the price is very high, accounting for about 30% of the total equipment investment in the annual output of 5000m3 wood core board project. At present, the glue equipment with moderate price and good processing quality is a semi-automatic joinery machine, which not only provides more labor positions, but also greatly improves the processing quality. For example, BPB1225 type blockboard semi-automatic board machine, the workers first arrange the core strips one by one on the backing plate, after the glue is applied on the machine through the flap, the press plate, the push plate, the squeeze, the cut, the drying Made of large-format wood core board, which improves the mechanical strength of the blockboard. Its main structure is: 1 rack. The bed body, the heater, the lifting mechanism and the heating device are formed. The heating device generates high temperature on the outer surface of the heater through the saturated steam, and the spliced ​​plate is dried. 2 push board mechanism. It consists of a push plate slide, a push plate body, a push plate cylinder, a cutting saw, etc., and the plate plate formed by the flap and the press plate pushes the push plate body through the push plate cylinder, continuously pushing the core strips one by one. Into the heater, the side-coated adhesive is dried under the pressure of the pusher cylinder, which enhances the mechanical strength of the wood core board. 3 flap mechanism. The utility model is composed of a flapper, a flap hinge and a flap cylinder, and the core slab is lifted flat into the plane of the flipper. Under a certain pressure, the flap cylinder is turned over by the hinger by 90o, so that the plank is leaned against Go to the platen positioning bracket, pull off the loading pad, and then align the planks one by one, waiting for the platen cylinder to pressurize. 4 platen mechanism. The pressure plate positioning bracket, the pressure beam, the pressure beam guide rod and the pressure plate oil cylinder are composed, and the pressure plate oil cylinder presses the plate plate on the work surface through the pressure beam, and waits for the push plate mechanism to operate. 5 protective cover. It consists of channel steel, cover plate and group plate. Its main function is to minimize heat loss and dust falling into the equipment. The width of the panel of the jigsaw machine is 1900mm and 2500mm. The thickness of the splicing slab is between 14 and 40mm, the total power is 8 5kW, and the outer dimensions are 5243mm × 3310mm × 2135mm. The steam pressure is 0.15 to 0.2 MPa, and the temperature is 110 to 120 °C. The operating conditions are easy to meet, and it is energy-saving, economical and safe to use with the oil heater.
3 selection of leveling equipment
The large-format wood core board from the jigsaw machine is rough and uneven, and must be leveled to meet the requirements. The traditional method is to use a wide belt sander for sanding, but a large amount of dust will be generated in the production process, and a dust removal system is required, and the rubber particles solidified on the surface of the board are extremely easy to wear the abrasive belt, which brings difficulties to normal processing. In addition, the price of sanding equipment is relatively high. A simple sanding machine should also be around 200,000 yuan. The double-sand frame wide sanding production line will cost a million yuan, of which the mainframe is about 600,000 yuan. Some manufacturers simply omit this process, directly affixing the two sides of the wood core board to the single board and pressing it into a blockboard. However, the defect is not covered, so that the resulting blockboard surface is uneven and has obvious indentation. The effective method is to use planing equipment. MB1013 planer is the ideal equipment for the leveling of blockboard core board. It breaks through the limitation of the processing width of ordinary planer. The maximum planing width can reach 1300mm, the amount of planing is large, and the process is used. The processing requirements can be met once and the equipment price is much lower than that of the sander. Therefore, in the design stage of project construction, carefully select the appropriate dry, jigsaw, and equal-equal equipment. Although the investment has increased, the profits obtained have also increased significantly. The increased profits greatly exceed the increased investment, which can be said to be twice the result with half the effort. The author selected several of the above-mentioned three kinds of equipment in several blockboard factories assisted in design and construction in Hulan County and Jiamusi City of Heilongjiang Province, and soon installed and put into production, and achieved good economic benefits.
At present, the blockboard market is in the ascendant, with broad prospects and sales volume is increasing year by year. Because of its low investment, large profits, and easy production, many companies have adopted short-term and fast tactics and quickly put into production. Although the country's total annual output is large, due to equipment selection and production management, the quality of the products is uneven. There are not many high-quality blockboards on the market, and the prices are also quite different. In the design stage of project construction, it is of great significance to select suitable equipment and carry out reasonable process layout. On the one hand, it can make full use of raw materials, save wood resources and improve labor productivity; on the other hand, it can greatly improve product quality and increase product market competitiveness. Therefore, the rational selection of equipment is a prerequisite for good economic returns. Due to restrictions on conditions such as capital, site and raw materials, some manufacturers only produce wood core boards and supply them to the blockboard factory as core boards. The production process of the wood core board is usually: firstly, the board square material is dried to a qualified moisture content, and then transported into the workshop, the defects are cut off on the saw, and cut into short materials of less than 15 m, so as to facilitate transportation in the workshop. . The wool is leveled on a flat, planer or double-sided planer, and then cut into a certain thickness of wood strip by a saw blade and cut into a certain length by a small saw. The processed wood core strips are transported to the slabs in a concentrated manner, paved into slabs, and spliced ​​into wooden core boards by jigs or jigsaw machines. Finally, the qualified wood core board is repaired and leveled. The following is an analysis of the selection of key equipment in the processing of wood core board for reference.
1 dryer selection
Drying is the first step in product quality, and choosing the right dryer is critical. The conventional steam drying kiln is a very mature equipment, but it has a high price and a large operating cost. Small enterprises that simply manufacture wood core boards are generally unable to bear. However, the soil drying cycle is long, the efficiency is low, and the drying quality is unstable, which is difficult to meet the production needs. From the point of view of the use effect and price, it is more suitable to select a dryer with improved burner heating (for example, XDG-1 type high efficiency burner end wind type wood dryer). The burning furnace of the dryer is fueled by residuals such as sawdust and scraps, and is first burned in the furnace to generate a furnace gas as a heat carrier medium. This is a new type of efficient, energy efficient, safe and reliable drying equipment. Its working principle is that the raw materials are sent into the spiral burning furnace through the feeding fan to vortex and burn, and the generated furnace gas is modulated by dust removal and properly mixed with air to enter the drying kiln radiator. An axial fan is arranged at the top of the kiln, and the generated air volume passes through the pile and heats the wood. The brewing chamber is equipped with a circulating steam generator, which can be sprayed and tempered according to requirements to ensure the quality of wood drying. The drying chamber of the machine is in the shape of a rectangular inclined wall. The front end has a certain inclination to make the air volume evenly distributed. The rear end is composed of an axial fan, a radiator and a baffle to form a complete fan room, which is easy to maintain and maintain. The fan rotates smoothly and reliably, with high efficiency and large air volume. A rail is arranged on the ground of the drying room for the loading car to run. The wheel of the loading car has rolling bearings and is convenient to move. Take the XDG-1 end-type high-efficiency burner heating dryer with a diameter of 1100mm as an example. Its capacity is 50m3, the installed capacity is 27 50kW, and there are 2 drying rooms. The outer dimensions of the drying equipment are 19,000mm×10400mm×3400mm. If you use a double-layer brick structure kiln, you only need to invest 220,000 yuan to start running. With an average drying cycle of 10 days, two sets of such dryers can be used to meet the needs of an annual output of 3000 to 4000 m3 of wood core board. The general conventional steam drying kiln, only the metal shell type host is at least 200,000 yuan, plus the supporting costs of boilers, civil works, etc., the investment will increase several times. In contrast, the installation cost, operating cost, and equipment price of the burner dryer are much lower, while the drying cycle and drying effect are basically the same.
2 choice of jigsaw machine
The dried sheet is also subjected to cross-section, longitudinal solution and planing. The equipment used is usually flat planer, double-sided planer, multi-blade circular saw, cross-section saw, etc., which are machined by general woodworking machinery factory. The core strip can meet the process requirements. The core strips are made into a wood core board, which is extraordinarily cautious in the process and equipment selection. The wood core board is manufactured by applying glue on the side of the core strip and bonding it laterally. The glue of the wood core strip can be processed by manual work or special machine tool, and the glue method includes hot pressing and cold pressing. Manual work is relatively primitive and low productivity, only suitable for factories with small production. The worker uses a brush to apply glue on one side of the core strip, then forms the rubber core strip into a wood core slab according to the specified size, and then clamps the assembled core slab, and then unloads the glue after the glue is solidified. This method is relatively backward, the production cycle is long, the strength of the wood core board is poor, the core strip is easy to fall off, and the thickness is not uniform, but the equipment cost is low. The complete set of automatic core board splicing machine saves labor and time, high quality, but the price is very high, accounting for about 30% of the total equipment investment in the annual output of 5000m3 wood core board project. At present, the glue equipment with moderate price and good processing quality is a semi-automatic joinery machine, which not only provides more labor positions, but also greatly improves the processing quality. For example, BPB1225 type blockboard semi-automatic board machine, the workers first arrange the core strips one by one on the backing plate, after the glue is applied on the machine through the flap, the press plate, the push plate, the squeeze, the cut, the drying Made of large-format wood core board, which improves the mechanical strength of the blockboard. Its main structure is: 1 rack. The bed body, the heater, the lifting mechanism and the heating device are formed. The heating device generates high temperature on the outer surface of the heater through the saturated steam, and the spliced ​​plate is dried. 2 push board mechanism. It consists of a push plate slide, a push plate body, a push plate cylinder, a cutting saw, etc., and the plate plate formed by the flap and the press plate pushes the push plate body through the push plate cylinder, continuously pushing the core strips one by one. Into the heater, the side-coated adhesive is dried under the pressure of the pusher cylinder, which enhances the mechanical strength of the wood core board. 3 flap mechanism. The utility model is composed of a flapper, a flap hinge and a flap cylinder, and the core slab is lifted flat into the plane of the flipper. Under a certain pressure, the flap cylinder is turned over by the hinger by 90o, so that the plank is leaned against Go to the platen positioning bracket, pull off the loading pad, and then align the planks one by one, waiting for the platen cylinder to pressurize. 4 platen mechanism. The pressure plate positioning bracket, the pressure beam, the pressure beam guide rod and the pressure plate oil cylinder are composed, and the pressure plate oil cylinder presses the plate plate on the work surface through the pressure beam, and waits for the push plate mechanism to operate. 5 protective cover. It consists of channel steel, cover plate and group plate. Its main function is to minimize heat loss and dust falling into the equipment. The width of the panel of the jigsaw machine is 1900mm and 2500mm. The thickness of the splicing slab is between 14 and 40mm, the total power is 8 5kW, and the outer dimensions are 5243mm × 3310mm × 2135mm. The steam pressure is 0.15 to 0.2 MPa, and the temperature is 110 to 120 °C. The operating conditions are easy to meet, and it is energy-saving, economical and safe to use with the oil heater.
3 selection of leveling equipment
The large-format wood core board from the jigsaw machine is rough and uneven, and must be leveled to meet the requirements. The traditional method is to use a wide belt sander for sanding, but a large amount of dust will be generated in the production process, and a dust removal system is required, and the rubber particles solidified on the surface of the board are extremely easy to wear the abrasive belt, which brings difficulties to normal processing. In addition, the price of sanding equipment is relatively high. A simple sanding machine should also be around 200,000 yuan. The double-sand frame wide sanding production line will cost a million yuan, of which the mainframe is about 600,000 yuan. Some manufacturers simply omit this process, directly affixing the two sides of the wood core board to the single board and pressing it into a blockboard. However, the defect is not covered, so that the resulting blockboard surface is uneven and has obvious indentation. The effective method is to use planing equipment. MB1013 planer is the ideal equipment for the leveling of blockboard core board. It breaks through the limitation of the processing width of ordinary planer. The maximum planing width can reach 1300mm, the amount of planing is large, and the process is used. The processing requirements can be met once and the equipment price is much lower than that of the sander. Therefore, in the design stage of project construction, carefully select the appropriate dry, jigsaw, and equal-equal equipment. Although the investment has increased, the profits obtained have also increased significantly. The increased profits greatly exceed the increased investment, which can be said to be twice the result with half the effort. The author selected several of the above-mentioned three kinds of equipment in several blockboard factories assisted in design and construction in Hulan County and Jiamusi City of Heilongjiang Province, and soon installed and put into production, and achieved good economic benefits.
Sports Artificial Grass,Synthetic Grass,Artificial Golf Course,Artificial Grass
Changshu Keyuan Eco-friendly New Materials Co.,Ltd , https://www.alqartificialgrass.com