Polyurethane wood composite board production line

Abstract

The invention discloses a polyurethane wood composite board production line, and relates to the technical field of polyurethane wood composite board production. The invention discloses a polyurethane wood composite board production line which comprises a material conveyor for conveying polyurethane composite boards, and a board cutting machine body, a board glue spraying mechanism, a composite mechanism, a mold assembly, a lock catch control mechanism, an upper mold lifting device and a middle mold lifting device are sequentially arranged on a conveying line of the material conveyor. According to the polyurethane composite wood board surface tidying and paving device, the process of automatically tidying and paving the surface of a polyurethane composite wood board can be achieved; the automation degree is high, the production efficiency is improved, the whole production line is remotely controlled by the control machine, high automation of equipment operation is achieved, and manpower used in production is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of wood board production, in particular to a polyurethane wood composite board production line. Background Art

[0002] Combining polyurethane and wood chips can produce a new type of composite material, namely polyurethane wood composite board. In the production process, the peeled wood board is first processed to obtain heavy-cut wood with a high aspect ratio. The heavy-cut wood is one or more of wood chips, heavy-cut wood, wood strips, wood fibers, and wood powder. The heavy-cut wood is then transported to a dryer for drying and its moisture content is controlled. The preservative and functional modifier are mixed with the heavy-cut wood in proportion for reaction. After the specified time, they are transported to a drying room for drying to obtain anti-corrosion modified heavy-cut wood; the anti-corrosion modified heavy-cut wood is mixed with a polyurethane resin in a designed proportion through a drum or spray / roller glue mixer. After the mixing is completed, the material is discharged, flattened by a paving machine, and then solidified and formed by intermittent molding at a certain temperature and pressure to obtain a formed polyurethane composite wood board substrate. After cutting, turning over, cooling, and standing, a sanding machine is used to perform fixed thickness sanding, and a fully intelligent sorting machine is used to screen out defective polyurethane composite wood board substrates and qualified polyurethane composite wood board substrates. Finally, according to product requirements, at a certain temperature and pressure, outdoor polyurethane simulated wood grain skin is pressed on the outer surface of the polyurethane composite wood board substrate, and the polyurethane composite wood board is obtained after trimming, or polyurethane elastomer glue is poured on the outer surface of the polyurethane composite wood board substrate, and the polyurethane composite wood board is obtained after trimming.

[0003] In the prior art, the production line for producing polyurethane composite wood boards has a low degree of automation, high production cost and low production efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a polyurethane wood composite board production line to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions: a polyurethane wood composite board production line, comprising a material conveyor for conveying polyurethane composite wood boards, wherein a mold assembly, a board glue spraying mechanism and a board cutting machine body are sequentially arranged on the conveying line of the material conveyor;

[0006] The mold assembly is used to convey the polyurethane composite wood board body to be processed, and the mold assembly includes an upper mold, a middle mold, a lower mold and a lock that are assembled together, the middle mold is located between the lower mold and the middle mold, and the lower mold limits the upper mold by the lock that is rotatably connected to it;

[0007] The board glue spraying mechanism includes an upper glue spraying head and a lower glue spraying brush head, wherein the upper glue spraying head is located above the material conveyor, and the lower glue spraying brush head is located between the conveying rollers of the material conveyor. The upper glue spraying head is used to spray materials on the upper surface of the reinforcing layer of the polyurethane composite wood board body, and the lower glue brush head is used to evenly brush the adhesive sprayed by the upper glue spraying head;

[0008] The sheet material cutting machine body is used for cutting the pressed finished sheet material.

[0009] The side wall of the middle module is provided with a protrusion, and the middle module is located between the lock buckles on both sides.

[0010] Limiting rollers are symmetrically provided on both sides of the material conveyor, and the lower mold passes between the limiting rollers on both sides. A polyurethane composite wood board body is pressed in the mold cavity formed by the upper mold, the middle mold and the lower mold. The polyurethane composite wood board body includes a reinforcing layer, a heavy-cut wood layer and a decorative protective layer. The reinforcing layer is located inside the heavy-cut wood layer, and the decorative protective layer is located on the outer wall of the heavy-cut wood layer.

[0011] The conveying line of the material conveyor is provided with a material discharge level 1 d, a material discharge level 2 e, a material discharge level 3 f and a material discharge level 4 g in sequence; the material discharge level 1 d, the material discharge level 2 e, the material discharge level 3 f and the material discharge level 4 g are all provided with guide rails, the guide rails are provided with a slider 1 which can move laterally, and the side wall of the slider 1 is provided with a support block which can move longitudinally.

[0012] It includes a lock-control push block, and a lock-control push block is provided at the bottom end of the support block at the material discharge position -d.

[0013] It includes an upper die lifting device, and the bottom end of the support block at the lower material position 2e is provided with an upper die lifting device.

[0014] It comprises a middle die lifting device, and the bottom end of the support block at the material discharge position 3f is provided with a middle die lifting device.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention can realize the process of automatically arranging and leveling the surface of the wooden board; the automation degree is high, the production efficiency is improved, and the whole production line is remotely controlled by a control machine, so that the equipment operation is highly automated and the use of manpower in production is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the present invention;

[0018] Figure 2 is a truncated diagram of the track in the present invention;

[0019] Figure 3 A truncated view of the mold components of the present invention when assembled together;

[0020] Figure 4 For the present invention Figure 2 A partial enlarged view of point E in the middle;

[0021] Figure 5 For the present invention Figure 2 A partial enlarged view of point D in the middle;

[0022] Figure 6 It is an axonometric diagram of the composite mechanism in the present invention;

[0023] Figure 7 It is a front cross-sectional view of the composite structure of the present invention;

[0024] Figure 8 For the present invention Figure 7 The truncation diagram in ;

[0025] Fig. 9 For the present invention Figure 8 A partial enlarged view of the middle A;

[0026] Fig.10 It is a schematic diagram of the auxiliary support arm in the present invention when it is in the skin-laying state;

[0027] Fig.11 is a schematic diagram of the outer support plate of the present invention;

[0028] Fig.12 is a schematic diagram of the auxiliary support arm in the present invention;

[0029] Fig.13 For the present invention Fig.12 A partial enlarged view of point B in the middle;

[0030] Fig.14 is a cross-sectional view of the auxiliary support arm in the present invention;

[0031] Fig.15 A top view of the outer support plate of the present invention;

[0032] Fig.16 It is a schematic diagram of the auxiliary material block in the present invention;

[0033] Fig.17 For the present invention Figure 1 A partial enlarged view of point F in the middle;

[0034] In the figure: 1. material conveyor; 101. plate cutting machine body; 102. upper mold; 103. middle mold; 104. lower mold; 105. lock; 106. limit roller; 107. guide rail; 108. slider 1; 109. support block; 110. push block; 111. convex block; 112. upper mold lifting device; 113. middle mold lifting device; 114. upper glue spray head; 115. lower glue spray brush head;

[0035] 2. Feed plate; 201. Base 1; 202. Support frame; 203. Auxiliary material block; 204. Horizontal axis; 206. Through hole 1;

[0036] 3. Support roller; 4. One leather-laying roller; 5. Main support arm; 6. Two leather-laying rollers; 7. Auxiliary support arm; 8. Power box; 9. Unwinding device; 10. One electric push rod; 11. Extrusion rod; 12. Two electric push rods; 13. Leather pressing plate; 20. Inner support plate; 21. Outer support plate; 22. Loading port; 23. Motor frame; 24. Motor; 25. Rotating shaft; 26. Two through holes; 27. Moving slot; 28. Fixed clamping claw; 29. ​​Moving clamping claw; 30. Sliding hole; 31. Adjusting block; 32. One slideway; 33. One spring; 34. One clamping block; 35. Two slideways; 36. Two springs; 37. Slot; 38. Screw; 39. Cutting knife; 40. Two clamping blocks; 41. Positioning piece. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1: Figure 1-5 As shown, the present invention provides a polyurethane wood composite board production line, including a material conveyor 1 for conveying polyurethane composite wood boards, wherein a mold assembly, a board glue spraying mechanism and a board cutting machine body 101 are sequentially arranged on the conveying line of the material conveyor 1;

[0039] The mold assembly is used to convey the polyurethane composite wood board body to be processed, and the mold assembly includes an upper mold 102, a middle mold 103, a lower mold 104 and a lock 105 assembled together, the middle mold 103 is located between the lower mold 104 and the middle mold 103, and the lower mold 104 limits the upper mold 102 through the lock 105 rotatably connected thereto;

[0040] The board glue spraying mechanism includes an upper glue spraying head 114 and a lower glue spraying brush head 115, wherein the upper glue spraying head 114 is located above the material conveyor 1, and the lower glue spraying brush head 115 is located between the conveying rollers of the material conveyor 1. The upper glue spraying head 114 is used to spray materials on the upper surface of the reinforcement layer of the polyurethane composite wood board body, and the lower glue brush head 115 is used to evenly brush the adhesive sprayed by the upper glue spraying head;

[0041] The sheet cutting machine body 101 is used to cut the pressed finished sheet.

[0042] The side wall of the middle module 103 is provided with a protrusion 111 , and the middle module 103 is located between the lock buckles 105 on both sides.

[0043] Limiting rollers 106 are symmetrically provided on both sides of the material conveyor 1, and the lower mold 104 passes between the limiting rollers 106 on both sides. A polyurethane composite wood board body is pressed in the mold cavity formed by the upper mold 102, the middle mold 103 and the lower mold 104. The polyurethane composite wood board body includes a reinforcing layer, a heavy-cut wood layer and a decorative protective layer. The reinforcing layer is located inside the heavy-cut wood layer, and the decorative protective layer is located on the outer wall of the heavy-cut wood layer.

[0044] The conveying line of the material conveyor 1 is provided with a material discharge level 1 d, a material discharge level 2 e, a material discharge level 3 f and a material discharge level 4 g in sequence; the material discharge level 1 d, the material discharge level 2 e, the material discharge level 3 f and the material discharge level 4 g are all provided with a guide rail 107, the guide rail 107 is provided with a slider 108 for transverse movement, and the side wall of the slider 108 is provided with a support block 109 for longitudinal movement.

[0045] It includes a lock control push block 110, and the bottom end of the support block 109 at the material discharge position d is provided with a lock control push block 110.

[0046] It comprises an upper die lifting device 112, and the bottom end of the support block 109 at the material discharge position 2e is provided with an upper die lifting device 112.

[0047] A middle die lifting device 113 is included. The bottom end of the support block 109 at the material discharge position 3f is provided with a middle die lifting device 113.

[0048] The specific implementation method is: the complete process of the polyurethane composite wood board production line includes:

[0049] 1. Open the mold assembly cover;

[0050] 2. Place the reinforcement layer, such as laying several reinforcement ribs at equal distances, and spray the adhesive;

[0051] 3. Weigh the heavy cut wood, spray PU glue with high pressure, and spread the heavy cut wood and PU material between the lower mold 104 and the middle mold 103 after mixing and mixing to obtain a heavy cut wood layer;

[0052] 4. Pour in the upper PU decorative layer, which is a polyurethane elastomer poured in as a wear-resistant and anti-slip layer;

[0053] 5. Pressing and heat preservation forming;

[0054] 6. Open the mold and take out the workpiece;

[0055] 7. Cutting, weighing and measuring the size;

[0056] 8. Compounding, pasting a prefabricated polyurethane simulated wood grain layer or a cast-in-situ polyurethane simulated wood grain layer;

[0057] 9. The final wooden board has a reinforcement layer, a heavy cut wood layer and a decorative protective layer.

[0058] The processes 2 and 8 are set accordingly according to product requirements.

[0059] The mold assembly conveys the plate formed by pressing inside it to the material conveyor 1, the power device on the guide rail 107 can drive the slider 108 to move horizontally along the guide rail 107, and the cylinder in the slider 108 can drive the support block 109 to move longitudinally along the slider 108, so as to adjust the height and horizontal position of the slider 108; then the height and horizontal position of the corresponding lock control push block, the upper mold lifting device 112 and the middle mold lifting device 113 are adjusted, the upper glue spray head 114 and the lower glue spray brush head 115 are connected to the external glue delivery pipeline, and polyurethane glue is applied to the outer surface of the plate to form a polyurethane protective layer or a polyurethane simulated wood grain layer;

[0060] The following describes in detail the process of using the mold assembly:

[0061] Step F1, opening the mold assembly: the mold assembly is conveyed to the material conveyor 1, and the lock control push block pushes the upper end of the lock 105 to both sides in turn, and the lock 105 rotates to the right, and the lock 105 loses the restriction on the upper mold 102. After the upper mold lifting device 112 descends, the hook rotates downward to hook the hanging groove, and the upper mold 102 is taken out, and the cover is opened;

[0062] Step F2, placing the reinforcement layer: laying a number of reinforcement ribs at equal distances, spraying adhesive, weighing the heavy-cut wood, spraying PU glue with high pressure, measuring and mixing the heavy-cut wood and PU material, and then laying them flat between the lower mold 104 and the middle mold 103 to obtain the heavy-cut wood layer;

[0063] Step F3, pouring the upper PU decorative layer: an external glue pouring head is arranged above the conveying roller of the material conveyor 1, and the width of the glue pouring head is equal to the inner opening width of the middle module 103. The lower module 104 filled with mixed glue and heavy cut wood continues to move along the material conveyor 1. When passing under the glue pouring head, glue is evenly poured on the top of the mixed glue and heavy cut wood as the upper PU decorative layer. The upper PU decorative layer is poured with polyurethane elastomer as a wear-resistant and anti-skid layer;

[0064] Step F4, pressing: the lower mold 104 continues to move forward along the material conveyor 1, and after the upper mold lifting device 112 descends again, the upper mold 102 is placed on the top inside the middle mold 103, the hook rotates in the opposite direction to disengage from the hanging groove, and the upper mold lifting device 112 is retracted; the lower mold 104 continues to move forward along the material conveyor 1, and the board press initially presses down the upper mold 102, and presses down the upper mold 102 again after a break, so that the upper mold 102 extrude and mold the mixed glue heavy cut wood, and heat-insulate the wood;

[0065] Externally connected cylinders are symmetrically arranged on both sides of the material conveyor 1, and push rods are arranged at the telescopic ends of the cylinders. At this time, the push rods are respectively located on both sides of the lower mold 104. The extension of the cylinder drives the push rods to approach the lower mold 104, and pushes the lock buckles 105 on both sides inward, so that the lock buckles 105 rotate inward, and the lock buckles 105 rotate from inclined to vertical, completing the clamping.

[0066] The process of removing the plate is:

[0067] Step S1, when the mold assembly reaches the material discharge position -d, the lock is adjusted to control the push block to descend to the top of the upper mold 102, and then the lock 105 on the left side of the lower mold 104 is moved to the left to push open, and then the lock 105 on the right side of the lower mold 104 is moved to the right to push open, so that the lock 105 is rotated outward to open, and the lock 105 is separated from the upper mold 102 and the middle mold 103;

[0068] When the mold assembly reaches the material discharge position e, the upper mold lifting device 112 is adjusted to descend. A rotatable hook is provided on the upper mold lifting device 112, and the hook hooks the hanging groove in the upper mold 102 to complete the clamping of the upper mold 102. Then, the upper mold lifting device 112 drives the upper mold 102 upward, so that the upper mold 102 is separated from the middle mold 103.

[0069] When the lower mold 104 reaches the material discharging position 3f, the middle mold lifting device 113 is adjusted to descend. A retractable positioning block is provided on the middle mold lifting device 113. The side wall of the positioning block is provided with a through hole adapted to the protrusion 111. After descending until the through hole is aligned with the protrusion 111, the positioning block is retracted so that the through hole and the protrusion 111 are engaged to complete the fixation. The middle mold lifting device 113 drives the middle mold 103 and the lower mold 104 to separate upward. At this time, the plate lies flat on the lower mold 104; the external material taking device takes the plate off and places it at the material discharging position 4g. After the plate is taken off, the external power device takes the lower mold 104 off.

[0070] Step S2, the material conveyor 1 continues to drive the plate at the unloading position 29g to move forward, and when the plate passes through the plate cutting machine body 101, the plate is cut, and when the plate passes through the upper glue spraying head 114 and the lower glue spraying brush head 115, glue is sprayed on both sides of the plate;

[0071] Among them, the upper die lifting device 112 and the middle die lifting device 113 are used in the process from opening the cover of the mold assembly to pressing and from opening the mold to cutting. The upper die lifting device 112 and the middle die lifting device 113 are used for opening and locking the mold assembly. The upper die lifting device 112 is used to lift and lower the upper mold 102, and the middle die lifting device 113 is used to lift or lower the middle mold 103, so as to adjust the position of the upper mold 102 and the middle mold 103; corresponding guide rails 107 are also provided at the opening and pressing of the mold assembly of the production line. A slider 108 for transverse movement is provided on the guide rail 107, a support block 109 for longitudinal movement is provided on the side wall of the slider 108, and a corresponding middle mold lifting device 113 or a lock control push block or an upper mold lifting device 112 is provided at the bottom end of the support block 109. The movement of the slider 108 on the guide rail 107, the movement of the support block 109 on the slider 108, the extension and retraction of the positioning block on the middle mold lifting device 113, and the rotation of the hook on the upper mold lifting device 112 are all remotely controlled by the control machine, thereby realizing the automation of equipment operation and reducing the use of manpower in production.

[0072] Embodiment 2: Different from Embodiment 1, the present invention provides a polyurethane wood composite board production line, which also includes a composite mechanism;

[0073] like Figure 6-Figure 17, the composite mechanism includes a feed plate 2 for horizontally feeding material to the hot press body, an automatic unwinding device 9, a supporting mechanism, a rotating mechanism, a clamping mechanism and an auxiliary material spreading mechanism, the supporting mechanism is located on both sides of the feed plate 2, and a supporting roller 3 and a rotating mechanism that translates along the track are arranged between the supporting mechanisms on both sides, the outer wall fixed sleeve of the rotating mechanism is provided with a leather spreading roller 4 and a main supporting arm 5, the main supporting arm 5 is located on both sides of the leather spreading roller 4, the main supporting arm 5 includes a central end and a tail end, and a leather spreading roller 2 6 is rotatably connected between the tail ends of the main supporting arms 5 on both sides, the side walls of the main supporting arms 5 are provided with auxiliary supporting arms 7, the inner walls of the auxiliary supporting arms 7 are provided with a clamping mechanism, the top of the supporting mechanism is symmetrically provided with a power box 8, the power boxes 8 on both sides are connected by an automatic unwinding device 9, and the auxiliary material spreading mechanism is located at the tail end of the material conveyor 1;

[0074] The side wall of the automatic unwinding device 9 is provided with an electric push rod 10 and a cutting mechanism, and the bottom of the support mechanism is provided with an extrusion rod 11, and the opening and closing state of the clamping mechanism is controlled by the extrusion rod 11 and the electric push rod 10;

[0075] An electric push rod 12 is provided on the outer side of the feed plate 2, and a leather pressing plate 13 is provided on the top of the electric push rod 12. The leather pressing plate 13 is located above the feed plate 2 and close to the automatic unwinding device 9. The leather pressing plate 13 is located between the main support arms 5 on both sides.

[0076] The supporting mechanism includes an inner supporting plate 20 and an outer supporting plate 21. The inner supporting plate 20 is symmetrically arranged on both sides of the feed plate 2. The outer side of the inner supporting plate 20 is provided with an outer supporting plate 21. The bottom of the outer supporting plate 21 and the inner supporting plate 20 are both provided with a loading port 22, and the upper surface of the loading port 22 is higher than the feed plate 2.

[0077] The rotating mechanism includes a motor frame 23, a motor 24 and a rotating shaft 25. An axially movable motor frame 23 is provided on the inner side of the outer support plate 21, and a motor 24 is installed on the motor frame 23. The output shaft of the motor 24 is connected to the rotating shaft 25. The leather-laying roller 4 and the main support arm 5 are fixedly sleeved on the outer wall of the rotating shaft 25. The end of the main support arm 5 close to the rotating shaft 25 is the center end. A through hole 26 is provided on the inner wall of the inner support plate 20. Both ends of the rotating shaft 25 pass through the inner support plate 20 respectively. A movable groove 27 is provided on the inner wall of the outer support plate 21. The motor frame 23 translates along the movable groove 27 on the side wall of the outer support plate 21.

[0078] The extrusion rod 11 passes through the bottom of the inner support plate 20 and extends to the top of the feed plate 2 . The extrusion rod 11 is located outside the rotation track of the main support arm 5 . The extrusion rod 11 is located outside the rotation track of the auxiliary support arm 7 .

[0079] The rotation trajectory of the auxiliary support arm 7 includes a skin connecting point a, a skin pushing point b and a skin releasing point c. When the auxiliary support arm 7 reaches the skin connecting point a during the axial rotation around the rotating shaft 25, it is in the skin attaching state, when it reaches the skin pushing point b, it is in the skin pushing state, and when it reaches the skin releasing point c, it is in the skin releasing state. The electric push rod 10 is located on the outside of the skin connecting point a.

[0080] When the adjustment block 31 is squeezed by the squeezing rod 11, the auxiliary support arm 7 is in an upper state, the spring 2 36 is in a balanced state, a gap is left between the auxiliary support arm 7 and the main support arm 5, the opening 1 is blocked by the main support arm 5, the spring 1 33 is in an squeezed state, and the clamping block 1 34 is located in the clamping slot 37;

[0081] When the dynamic clamping claw 29 is squeezed by the electric push rod 10, the auxiliary support arm 7 is in a released state, the spring 2 36 is in a squeezed state, the auxiliary support arm 7 is closed with the main support arm 5, the opening 1 is connected with the sliding hole 30, the spring 1 33 is opened to a balanced state, and one end of the block 1 34 enters into the sliding hole 30.

[0082] The clamping mechanism includes a fixed clamping claw 28, a movable clamping claw 29, an adjusting block 31, a spring 33, a clamping block 34, and a clamping block 40. The auxiliary support arm 7 is provided with a fixed clamping claw 28 at one end away from the main support arm 5. A groove is formed between the fixed clamping claw 28 and the auxiliary support arm 7. A sliding movable clamping claw 29 is provided in the groove. A through sliding hole 30 is provided on the inner wall of the movable clamping claw 29. An adjusting block 31 is slidingly provided on the inner wall of the sliding hole 30. A sliding groove 32 is provided on the inner wall of the auxiliary support arm 7. An opening 1 is provided on the side of the sliding groove 32 facing the groove. The inner wall of the sliding groove 32 is connected to a clamping block 34 via a spring 33.

[0083] The inner wall of the fixed clamping claw 28 is provided with a second slide groove 35, and the second slide groove 35 is provided with a second opening on the side facing the groove. The inner wall of the second slide groove 35 is connected with a second clamping block 40 through a second spring 36. The side of the movable clamping claw 29 close to the second opening is provided with a clamping groove 37, and the second clamping block 40 is adapted to the clamping groove 37.

[0084] The auxiliary material laying mechanism includes a base 201, a support frame 202, an auxiliary material block 203 and a transverse axis 204. A base 201 is provided on the outer side of the feed plate 2, a support frame 202 that can move laterally is provided on the top of the base 201, a transverse axis 204 is provided on the end of the support frame 202, an auxiliary material block 203 is sleeved on the outer wall of the transverse axis 204, a through hole 206 is provided on the inner wall of the auxiliary material block 203, and the through hole 206 is movably connected to the transverse axis 204.

[0085] The length of the adjusting block 31 pushed by the extrusion rod 11 is equal to the length of the clamping block 34 entering the sliding hole 30; the automatic unwinding device 9 includes an unwinding shaft, and the cutting mechanism is located between the unwinding shaft and the electric push rod 10, and the cutting mechanism includes a screw rod 38, a limit rod, a slider 2 and a cutting knife 39. The power boxes 8 on both sides are connected by a screw rod 38, and the outer wall of the screw rod 38 is provided with a meshing slider 2, and the side wall of the slider 2 is provided with a cutting knife 39, and the slider 2 is slidably connected to the screw rod 38.

[0086] The specific implementation method of the composite operation of the sprayed board is as follows: the composite leather layer is an outdoor polyurethane simulated wood grain leather:

[0087] Step S41, taking skin: Figure 8 As shown in a, the auxiliary support arm 7 is in the epithelial state, the electric push rod 10 is fully retracted, the dynamic clamping claw 29 is in the open state, the cutting knife 39 is located on the outside of the leather-laying roller 4, the cutting knife 39 is away from the cortex, the automatic unwinding device 9 continuously releases the cortex, and the tail end of the cortex falls into the gap between the dynamic clamping claw 29 and the fixed clamping claw 28. The electric push rod 10 extends and reaches the rotation range of the dynamic clamping claw 29, and the motor 24 rotates. The two motors 24 cooperate with each other to drive the rotating shaft 25, the leather-laying roller 4, the main support arm 5, the auxiliary support arm 7, the dynamic clamping claw 29 and the fixed clamping claw 28 as shown in FIG. Figure 3 As shown in the figure, the movable clamping claw 29 rotates clockwise, and after the movable clamping claw 29 contacts the side wall of the electric push rod 10, the movable clamping claw 29 moves toward the fixed clamping claw 28, and the clamping block 40 is pushed, so that the spring 36 is compressed, the sliding hole 30 is aligned with the sliding groove 32, and the elastic force of the spring 33 itself causes it to open, and the spring 33 pushes one end of the clamping block 34 into the sliding hole 30, thereby fixing the movable clamping claw 29, and the cortex is fixed by using the movable clamping claw 29 and the fixed clamping claw 28, and the electric push rod 10 shrinks and resets;

[0088] Step S42, cloth skin: the motor 24 continues as Figure 3As shown, the movable clamping claw 29 and the fixed clamping claw 28 drive the beginning of the leather layer to pass through the skin pushing point b and then reach the skin releasing point c. Because the skin pressing plate 13 and the main support arm 5 are staggered, the skin pressing plate 13 will not affect the normal rotation of the main support arm 5, so that the auxiliary support arm 7 is in the skin releasing state;

[0089] Fig.13 The second clamping claw 29 is in the state of being opened, and the second clamping claw 29 is in the state of being opened.

[0090] Step S43, loading: the motor 24 is as follows Figure 3 As shown, the auxiliary support arm 7 rotates counterclockwise to reach point b, so that the auxiliary support arm 7 is in a push-skin state, and the motor 24 stops;

[0091] The plate moves forward on the material conveyor 1, the forward end of the plate is the m end, and the other end is the n end. At this time, the support roller 3, the leather-laying roller 4 and the material conveyor 1 are at the same height. The material conveyor 1 drives the m end of the plate to the top of the support roller 3 and the leather-laying roller 4 in turn, and the support roller 3 is connected to the external power source;

[0092] The outer support plate 21 is provided with a power device inside, which is not shown in the prior art and can be a combination structure of a gear, a rack and a motor; so that the motor frame 23 is along Figure 6The motor frame 23 drives the motor 24, the rotating shaft 25, the leather-laying roller 4, the main support arm 5, the auxiliary support arm 7, the dynamic clamping claw 29, the fixed clamping claw 28, the leather-laying roller 26 and the plate to move synchronously. The leather-laying roller 4 supports the m end of the plate, and the leather-laying roller 26 pushes the cortex to the right, so that the cortex gradually deforms and bends to the right. During the advancement of the m end of the plate, the cortex is always laid under the part of the plate that has passed through the supporting roller 3. When the n end of the plate has completely passed the supporting roller 3, the n end of the plate will fall on the feed plate 2. Under the action of the plate's own power, the leather-laying roller 4 continues to move to the right, causing the m end of the plate to fall from the leather-laying roller 4 to the feed plate 2. At this time, the laying of the cortex under the plate is completed, and the motor frame 23 stops moving.

[0093] Step S44: The motor 24 drives the main support arm 5 to Figure 3 The auxiliary support arm 7 rotates counterclockwise in the direction shown, and the auxiliary support arm 7 rotates to point a, the auxiliary support arm 7 is in the epithelial state, and the motor frame 23 moves along Fig.11 The motor frame 23 drives the motor 24, the rotating shaft 25, the leather-laying roller 4, the main support arm 5, the auxiliary support arm 7, the dynamic clamping claw 29, the fixed clamping claw 28 and the leather-laying roller 6 to move to the left. At the same time, the cylinder in the base 201 drives the support frame 202 to approach the feed plate 2, and the support frame 202 drives the auxiliary material block 203 to move synchronously through the horizontal axis 204. After the auxiliary material block 203 is fitted with the cortex and the feed plate 2, the relative position of the auxiliary material block 203 and the horizontal axis 204 will change due to the setting of the through hole 206, so that when processing plates of different thicknesses, the auxiliary material block 203 can fit with the feed plate 2, so that the cortex above the plate fits with the plate, until the auxiliary support arm 7 returns to the initial position reference in step S3. Figure 7 , the second skinning roller 6 drives the skin layer to be spread flat on the upper surface of the plate;

[0094] A power device for driving the unwinding shaft and the screw 38 to rotate is installed in the power box 8. It is a prior art and an electric motor can be used to start the screw 38 to rotate. The screw 38 engages with the screw nut inside the slider 2, driving the slider 2 and the cutting knife 39 to translate to cut the cortex, thereby breaking the cortex. The positioning piece 41 flips downward to clamp and fix the plate and the surface cortex. The electric push rod 2 12 extends to drive the skin pressing plate 13 to reset, and the hot press body drives the feed plate 2 into the working chamber for hot pressing to complete a round of operation.

[0095] The beneficial effects are:

[0096] The present invention can adjust the height of the auxiliary support arm and the leather-laying roller one as needed by arranging a movable groove on the outer support plate, thereby providing a rotating space for the auxiliary support arm when rotating, avoiding the auxiliary support arm from being unable to rotate, and realizing the adjustment of the auxiliary support arm to be in the leather-laying state when reaching the leather connecting point a, the leather-pushing state when reaching the leather-pushing point b, and the leather-laying state when reaching the leather-laying point c. The auxiliary support arm also drives the leather-laying roller two to rotate, thereby realizing the process of the leather-laying roller two arranging and flattening the leather layer in two directions; there is no need to pre-cut the outdoor polyurethane simulated wood-grain leather, and the two-sided laying and cutting of the outdoor polyurethane simulated wood-grain leather can be realized, thereby improving production efficiency.

[0097] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A polyurethane wood composite board production line, characterized by: It comprises a material conveyor (1) for conveying polyurethane composite wood boards, wherein a mold assembly, a board glue spraying mechanism and a board cutting machine body (101) are sequentially arranged on a conveying line of the material conveyor (1); The mold assembly is used to convey a polyurethane composite wood board body to be processed, and the mold assembly comprises an upper mold (102), a middle mold (103), a lower mold (104) and a lock (105) assembled together, the middle mold (103) being located between the lower mold (104) and the middle mold (103), and the lower mold (104) limits the upper mold (102) by means of the lock (105) rotatably connected thereto; The board glue spraying mechanism comprises an upper glue spraying head (114) and a lower glue spraying brush head (115), wherein the upper glue spraying head (114) is located above the material conveyor (1), and the lower glue spraying brush head (115) is located between the conveying rollers of the material conveyor (1), the upper glue spraying head (114) is used to spray material on the upper surface of the reinforcement layer of the polyurethane composite wood board body, and the lower glue spraying brush head (115) is used to evenly apply the adhesive sprayed by the upper glue spraying head; The plate cutting machine body (101) is used to cut the pressed finished plate.

2. A polyurethane wood composite board production line according to claim 1, characterized in that: A protrusion (111) is provided on the side wall of the middle module (103), and the middle module (103) is located between the lock buckles (105) on both sides.

3. The polyurethane wood composite board production line according to claim 1, characterized in that: Limiting rollers (106) are symmetrically arranged on both sides of the material conveyor (1), and the lower mold (104) passes between the limiting rollers (106) on both sides. A polyurethane composite wood board body is pressed into a mold cavity formed by the upper mold (102), the middle mold (103) and the lower mold (104), and the polyurethane composite wood board body comprises a reinforcing layer, a recut wood layer and a decorative protective layer, wherein the reinforcing layer is located inside the recut wood layer, and the decorative protective layer is located on the outer wall of the recut wood layer.

4. The polyurethane wood composite board production line according to claim 1, characterized in that: A material discharge position 1 d, a material discharge position 2 e, a material discharge position 3 f and a material discharge position 4 g are sequentially arranged on the conveying line of the material conveyor (1); guide rails (107) are arranged on the material discharge position 1 d, the material discharge position 2 e, the material discharge position 3 f and the material discharge position 4 g; a slider 1 (108) that can move laterally is arranged on the guide rail (107); and a support block (109) that can move longitudinally is arranged on the side wall of the slider 1 (108).

5. A polyurethane wood composite board production line according to claim 4, characterized in that: It comprises a locking control push block (110), and the bottom end of the support block (109) at the material discharge position d is provided with a locking control push block (110).

6. A polyurethane wood composite board production line according to claim 4, characterized in that: It comprises an upper die lifting device (112), and the upper die lifting device (112) is provided at the bottom end of the support block (109) at the material discharge position 2e.

7. The polyurethane wood composite board production line according to claim 4, characterized in that: It comprises a middle mould lifting device (113), and the bottom end of the support block (109) at the material discharge position 3f is provided with the middle mould lifting device (113).

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