Gluing and pressing device for plywood

Abstract

The invention belongs to the technical field of plywood, and particularly relates to a plywood gluing and pressing device which comprises an edging mechanism, an avoiding table, a side stand column, an oil cylinder, a lifting frame and a three-in-one mechanism. The edge aligning mechanism is arranged on the side wall of the receding table, the side stand column is arranged around the edge aligning mechanism and the side wall of the receding table, the lifting frame is arranged on the side stand column in a sliding mode, the oil cylinder is connected between the lifting frame and the receding table, and the lifting frame can slide up and down along the side stand column under the action of the oil cylinder. The three-in-one mechanism horizontally slides on the inner side of the lifting frame. The device can deal with processing of plates with different widths and sizes, ensures that the side edges of the overlapped plates are flush, reduces the unfitness of butt joint, and improves the utilization efficiency of the plates and the trimming efficiency; and the three working procedures of sweeping, pre-pressing and gluing can be conducted synchronously, and the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of plywood, and in particular relates to a plywood gluing and pressing device. Background Art

[0002] Before the plywood enters the hot press for hot pressing and gluing, the multiple layers of plywood need to be stacked one by one. When stacking, the edges of the boards need to be aligned and the surface of the boards needs to be cleaned, and then the surface of the boards needs to be coated with glue. If the surface of the boards is dirty, it will affect the adhesion between the boards. After the boards are coated with glue, the boards are pre-pressed by the pressure head to fully spread the glue between the boards and evenly fill the boards. The above processes need to be carried out step by step, and in some cases they will be distributed in multiple stations, resulting in low production efficiency.

[0003] At the same time, during the stacking process of the plates, there will be problems with misaligned edges. Therefore, after the hot pressing is completed, a trimming process must be performed to trim the edges of the plates neatly to achieve a good appearance. During trimming, the more serious the misalignment of the plates, the greater the trimming margin. A large trimming margin will not only waste the utilization rate of raw materials, but also extend the trimming time, which will affect production efficiency and increase equipment costs. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a plywood gluing and pressing device, which at least partially solves the above problem.

[0005] The technical solution adopted by the present invention is as follows: A plywood gluing and pressing device proposed by the present invention includes an edge trimming mechanism, an avoidance platform, side columns, an oil cylinder, a lifting frame and a three-in-one mechanism. The edge trimming mechanism is arranged on the side wall of the avoidance platform, and the side columns are arranged around the edge trimming mechanism and the side wall of the avoidance platform. The lifting frame is slidably arranged on the side columns, and the oil cylinder is connected between the lifting frame and the avoidance platform. The lifting frame can be lifted and slid up and down along the side columns under the action of the oil cylinder, and the three-in-one mechanism slides horizontally on the inner side of the lifting frame. The three-in-one mechanism can simultaneously complete the cleaning, pre-pressing and gluing of the plate; when the plate falls into the edge trimming mechanism from above, the edge trimming mechanism can position plates of various widths, clamp the two sides of the plate to the middle, and then use the three-in-one mechanism to clean, pre-press and gluing the surface of the plate, completing all processes before hot pressing of the plate, thereby improving production efficiency.

[0006] Furthermore, the three-in-one mechanism includes a slide, sprockets are symmetrically provided on both sides of the slide, and the sprockets are connected to an external power mechanism through a chain, so that the slide can slide horizontally along the inner side of the lifting frame; A pre-pressing roller is provided at the middle part of the lower end of the slide, a glue spraying roller is provided at one end of the pre-pressing roller close to the oil cylinder, a brush wheel is provided at one end of the pre-pressing roller away from the oil cylinder, and both ends of the brush wheel are connected to motors through belts. When the slide slides, the brush wheel rotates under the action of the motor and cleans the surface of the plate. The pre-pressing roller presses the current plate with the plate below so that the glue between the two layers of plate is fully spread and bonded, thereby achieving a pre-pressing effect; the friction force of the pre-pressing roller will also bring the plate to the top edge position in the length direction to achieve alignment in the length direction, and then the brush wheel will spray glue on the upper surface of the clean plate after pre-pressing to prepare for the bonding of the next plate, thereby achieving the three-in-one effect of cleaning, pre-pressing and gluing, and improving production efficiency; In order to cover plates of different widths, the width of the glue spraying roller, pre-pressing roller and brush wheel is larger than the width of the edge trimming mechanism and does not need to be replaced; In order to prevent the brush wheel from throwing pollutants to the area where the glue spraying roller and the pre-pressing roller are located, a baffle is provided in the area of ​​the slide frame above the brush wheel.

[0007] Furthermore, the edge alignment mechanism includes a positioning platform and an unobstructed positioning unit. The positioning platform is arranged on the side wall of the avoidance platform. Multiple groups of unobstructed positioning units are slidably arranged on both sides of the positioning platform. The unobstructed positioning unit can position plates of different widths so that the upper and lower edges of the plates are aligned.

[0008] In order to avoid interference with the three-in-one mechanism after positioning and alignment, to ensure the painting operation of the three-in-one mechanism without hindering the movement of the three-in-one mechanism, the unobstructed positioning unit includes a slider, a positioning arc plate, a guide rod, a joystick and a second spring, the slider slides on the positioning platform, the positioning arc plate is hinged on the upper end of the slider, the guide rod is arranged at the edge area of ​​the bottom of the positioning arc plate, the joystick is perpendicular to the guide rod and slides in the positioning platform, the second spring is connected between the joystick and the positioning platform, the second spring always pushes the joystick in the direction of the positioning arc plate, and the guide rod is slidably arranged in the circular arc groove of the joystick; When the positioning arc plate is thrusted by the three-in-one mechanism, the positioning arc plate rotates relative to the slider and drives the guide rod to rotate around its hinge point. When the guide rod rotates, it will slide synchronously in the arc groove. The operating lever cannot change in the height direction and will only compress the spring to slide in the direction away from the positioning arc plate, ensuring that the positioning arc plate can tilt at a certain angle to allow the three-in-one mechanism to pass normally, and the positioning arc plate can still keep the plate below aligned when tilting.

[0009] Furthermore, in order to make the unobstructed positioning unit suitable for plates of different widths, the unobstructed positioning unit also includes a positioning shaft, the positioning shaft is penetrated through the positioning platform, the slider is penetrated through the positioning shaft, the side wall of the slider is provided with an open threaded tube, and a nut is threadedly connected to the open threaded tube. When the nut and the open threaded tube are tightened and matched, the relative position of the slider and the positioning shaft is fixed, and the slider cannot slide relative to the positioning shaft, and the position of the positioning arc plate is also fixed, so that it can be adjusted for plates of different widths. In order to ensure that the adjusted positioning arc plate is always in the extreme width position, a spring 1 is wrapped around the positioning shaft, and the spring 1 is connected between the slider and the positioning platform.

[0010] Furthermore, the positioning platform is symmetrically provided with a plurality of groups of unit grooves, and the array of the unit grooves is provided with support ribs, which can support the pre-pressed plate, and the gap between the support ribs is greater than the width of the positioning arc plate, and a gap is reserved between the support ribs and the two ends of the unit grooves, so that the positioning arc plate can be embedded between the support ribs when rotating, and when the width of the plate is different, the positioning arc plate can be embedded between the support ribs at different positions after adjusting the nut; A telescopic groove is provided on one side of the bottom wall of the unit groove close to the oil cylinder, a positioning hole penetrating the positioning platform is provided at the center of the telescopic groove, a direction-changing groove is provided above the positioning hole, the size of the direction-changing groove can adapt to the trajectory of the direction-changing guide rod following the movement of the arc groove, and a sliding groove is provided on the side wall of the unit groove close to the spring 1; The positioning shaft is arranged in the positioning hole, the direction-changing guide rod penetrates the arc groove and is slidably arranged in the direction-changing groove, the operating rod is slidably arranged in the sliding groove, and the sliding block is slidably arranged in the telescopic groove.

[0011] The beneficial effects achieved by the present invention using the above structure are as follows: 1. The edge trimming mechanism can handle plates of different widths and sizes, ensuring that the sides of the plates are flush after being stacked, reducing the amount of misalignment, and improving the utilization efficiency and trimming efficiency of the plates; 2. The three-in-one mechanism can simultaneously carry out the three processes of cleaning, pre-pressing and gluing, thus improving the working efficiency; 3. The non-obstruction positioning unit can ensure the alignment of the edges of the plates without interfering with the three-in-one mechanism. When the three-in-one mechanism moves, the non-obstruction positioning unit can adaptively tilt to allow the glue spray roller, pre-pressing roller and brush wheel to pass through. At the same time, it can also clamp the edges of both sides of the plates to ensure that the edges of the plates are flush. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 It is the position relationship diagram of the edge trimming mechanism, the avoidance platform and the side column; Figure 3 It is a partial cross-sectional view of the three-in-one mechanism; Figure 4 It is a partial cross-sectional view of the edge trimming mechanism; Figure 5 It is a structural schematic diagram of the unobstructed positioning unit; Figure 6 It is a structural schematic diagram of the slider; Figure 7 It is a partial cross-sectional view of the positioning platform; Figure 8 This is the state diagram of the edge alignment mechanism.

[0013] Among them, 1. edge alignment mechanism, 2. avoidance platform, 3. side column, 4. cylinder, 5. lifting frame, 6. three-in-one mechanism, 7. slide, 8. sprocket, 9. spray roller, 10. pre-pressure roller, 11. brush wheel, 12. motor, 13. baffle, 14. positioning platform, 15. unobstructed positioning unit, 16. positioning shaft, 17. slider, 18. nut, 19. spring one, 20. positioning arc plate, 21. joystick, 22. arc groove, 23. guide rod, 24. spring two, 25. unit groove, 26. support rib, 27. telescopic groove, 28. positioning hole, 29. change direction groove, 30. slide groove, 31. open threaded pipe.

[0014] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0016] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0017] like Figure 1 and Figure 2As shown, a plywood gluing and pressing device proposed in an embodiment of the present invention comprises an edge trimming mechanism 1, an avoidance platform 2, side columns 3, an oil cylinder 4, a lifting frame 5 and a three-in-one mechanism 6. The edge trimming mechanism 1 is arranged on the side wall of the avoidance platform 2, and the side columns 3 are arranged around the edge trimming mechanism 1 and the side wall of the avoidance platform 2. The lifting frame 5 is slidably arranged on the side columns 3, and the oil cylinder 4 is connected between the lifting frame 5 and the avoidance platform 2. The lifting frame 5 can be lifted and slid up and down along the side columns 3 under the action of the oil cylinder 4, and the three-in-one mechanism 6 slides horizontally on the inner side of the lifting frame 5. The three-in-one mechanism 6 can simultaneously complete the cleaning, pre-pressing and gluing of the plate. When the plate falls into the edge trimming mechanism 1 from above, the edge trimming mechanism 1 can position the plates of various widths, clamp the two sides of the plate to the middle, and then clean, pre-press and gluing the surface of the plate through the three-in-one mechanism 6, complete all the processes before hot pressing of the plate, and improve production efficiency.

[0018] like Figure 3 As shown, the three-in-one mechanism 6 includes a slide 7, and sprockets 8 are symmetrically provided on both sides of the slide 7. The sprockets 8 are connected to an external power mechanism (not shown in the drawings) through a chain (not shown in the drawings), so that the slide 7 can slide horizontally along the inner side of the lifting frame 5.

[0019] A pre-pressing roller 10 is provided in the middle of the lower end of the slide 7, and a glue spraying roller 9 is provided at the end of the pre-pressing roller 10 close to the oil cylinder 4, and a brush wheel 11 is provided at the end of the pre-pressing roller 10 away from the oil cylinder 4. Both ends of the brush wheel 11 are connected to the motor 12 through belts. When the slide 7 slides, the brush wheel 11 rotates under the action of the motor 12 and cleans the surface of the plate. The pre-pressing roller 10 presses the current plate with the plate below, so that the glue between the two layers of plate is fully dispersed and bonded, which has the effect of pre-pressing. The friction force of the pre-pressing roller 10 will also bring the plate to the top edge position in the length direction to achieve alignment in the length direction. The brush wheel 11 then sprays glue on the upper surface of the clean plate after pre-pressing, preparing for the bonding of the next plate, thereby achieving the three-in-one effect of cleaning, pre-pressing and gluing, and improving production efficiency.

[0020] In order to cover plates of different widths, the widths of the glue spraying roller 9, the pre-pressing roller 10 and the brush wheel 11 are greater than the width of the edge trimming mechanism 1 and do not need to be replaced.

[0021] In order to prevent the brush wheel 11 from throwing pollutants to the area where the glue spraying roller 9 and the pre-pressing roller 10 are located, a baffle 13 is provided in the area of ​​the carriage 7 above the brush wheel 11 .

[0022] In this embodiment, when the first plate falls into the trimming mechanism 1, both sides of the plate are clamped by the trimming mechanism 1 to place it in the center, and then the oil cylinder 4 is extended and retracted to drive the lifting frame 5 to fall to a suitable height.

[0023] Afterwards, the external power mechanism is started, and the slide 7 is driven to slide along the lifting frame 5 through the chain and sprocket 8, that is, to slide along the length direction of the plate; when the slide 7 slides, the motor 12 on the slide 7 is started and drives the brush wheel 11 to rotate, and the brush wheel 11 cleans the dirt and impurities on the surface of the plate in front, and the baffle 13 separates the cleaned area from the uncleaned area to prevent impurities from flying to the clean area at the rear; the pre-pressing roller 10 in the middle applies a certain pressure to the plate to make the surface of the plate flat, and under the action of friction, the plate is brought to the position of the top side column 3, so that one end of it in the length direction is positioned and aligned; and the rear glue spraying roller 9 simultaneously sprays glue on the surface of the cleaned and pre-pressed plate to prepare for the bonding of the next plate.

[0024] When the operation of the first plate is completed, the trimming mechanism 1 rises under the action of the oil cylinder 4 and returns to the initial position. At this time, the second plate falls into the trimming mechanism 1. The second plate is placed in the center under the action of the trimming mechanism 1, so that the side edges of the upper and lower plates are aligned, and the fitting surfaces of the two plates are initially bonded under the action of glue.

[0025] The three-in-one mechanism 6 repeats the operation steps of the previous round and cleans the upper surface of the second plate again. At the same time, the pre-pressing roller 10 pre-presses the second plate and the first plate to fully spread the glue between the two plates to prevent the appearance of glue-free areas between the plates. The second plate is moved forward in the length direction by the friction force of the pre-pressing roller 10 until it is pressed against the side column 3 to align the top edges of the upper and lower plates. When the above process is completed, the upper surface of the second plate is also sprayed with glue to prepare for the bonding of the next plate.

[0026] Repeat the above steps for subsequent panels.

[0027] like Figure 4 and Figure 5 As shown, the edge alignment mechanism 1 includes a positioning platform 14 and an unobstructed positioning unit 15. The positioning platform 14 is arranged on the side wall of the avoidance platform 2. Multiple groups of unobstructed positioning units 15 are slidably arranged on both sides of the positioning platform 14. The unobstructed positioning units 15 can position plates of different widths so that the upper and lower edges of the plates are aligned.

[0028] In order to avoid interference with the three-in-one mechanism 6 after positioning and alignment, to ensure the brushing operation of the three-in-one mechanism 6 without hindering the movement of the three-in-one mechanism 6, the unobstructed positioning unit 15 includes a slider 17, a positioning arc plate 20, a guide rod 23, a joystick 21 and a spring 24. The slider 17 slides on the positioning platform 14, the positioning arc plate 20 is hinged at the upper end of the slider 17, the guide rod 23 is arranged at the edge area of ​​the bottom of the positioning arc plate 20, the joystick 21 is perpendicular to the guide rod 23 and is slidably arranged in the positioning platform 14, the spring 24 is connected between the joystick 21 and the positioning platform 14, the spring 24 always pushes the joystick 21 toward the positioning arc plate 20, and the guide rod 23 is slidably arranged in the circular arc groove 22 of the joystick 21.

[0029] like Figure 8 As shown, when the positioning arc plate 20 is thrusted by the three-in-one mechanism 6, the positioning arc plate 20 rotates relative to the slider 17, and drives the guide rod 23 to rotate around its hinge point. When the guide rod 23 rotates, it will synchronously slide in the arc groove 22. The operating rod 21 cannot change in the height direction, and will only compress the spring 24 to slide away from the positioning arc plate 20, ensuring that the positioning arc plate 20 can be tilted at a certain angle to allow the three-in-one mechanism 6 to pass normally, and the positioning arc plate 20 can still keep the plate below aligned when tilted.

[0030] In this embodiment, when the three-in-one mechanism 6 is operating, since the widths of the glue spraying roller 9 , the pre-pressing roller 10 and the brush wheel 11 are greater than the width of the trimming mechanism 1 , the three-in-one mechanism 6 will definitely contact the positioning arc plate 20 .

[0031] When the positioning arc plate 20 is pushed by the three-in-one mechanism 6, the positioning arc plate 20 rotates relative to the slider 17. When the positioning arc plate 20 rotates, its top position coincides with the bottom end of the three-in-one mechanism 6, so that the three-in-one mechanism 6 can pass normally, and the bottom of the positioning arc plate 20 still squeezes and clamps the two side edges of the plate to keep the plate centered.

[0032] When the positioning arc plate 20 rotates, the guide rod 23 on the positioning arc plate 20 rotates synchronously with the positioning arc plate 20. The guide rod 23 is also restricted by the arc groove 22, so that the guide rod 23 can only rotate along the trajectory of the arc groove 22. The operating rod 21 compresses the spring 24 and moves under the action of the guide rod 23 and the arc groove 22.

[0033] When the three-in-one mechanism 6 is separated from the positioning arc plate 20, the spring 24 pushes the operating rod 21 back to the initial position and drives the guide rod 23 to return to the initial state. At this time, the positioning arc plate 20 is synchronously restored to the vertical state.

[0034] like Figure 4-Figure 6As shown, in order to make the unobstructed positioning unit 15 suitable for plates of different widths, the unobstructed positioning unit 15 also includes a positioning shaft 16, the positioning shaft 16 is penetrated on the positioning platform 14, and the slider 17 is penetrated on the positioning shaft 16. The side wall of the slider 17 is provided with an open threaded tube 31, and the open threaded tube 31 is threadedly connected with a nut 18. When the nut 18 is tightened with the open threaded tube 31, the relative position of the slider 17 and the positioning shaft 16 is fixed, and the slider 17 cannot slide relative to the positioning shaft 16. The position of the positioning arc plate 20 is also fixed, so that it can be adjusted for plates of different widths. In order to ensure that the adjusted positioning arc plate 20 is always in the extreme width position, a spring 19 is surrounded on the positioning shaft 16, and the spring 19 is connected between the slider 17 and the positioning platform 14.

[0035] like Figure 4 and Figure 7 As shown, a plurality of groups of unit grooves 25 are symmetrically provided on the positioning platform 14, and support ribs 26 are arranged in an array inside the unit grooves 25. The support ribs 26 can support the pre-stressed plate. The gap between the support ribs 26 is larger than the width of the positioning arc plate 20. Gaps are reserved between the support ribs 26 and both ends of the unit grooves 25. The positioning arc plate 20 can be embedded between the support ribs 26 when rotating. When the width of the plate is different, the positioning arc plate 20 can be embedded between the support ribs 26 at different positions after being adjusted by the nut 18.

[0036] A telescopic groove 27 is provided on the side of the bottom wall of the unit groove 25 close to the cylinder 4, a positioning hole 28 penetrating the positioning platform 14 is provided at the center of the telescopic groove 27, a changing groove 29 is provided above the positioning hole 28, and the size of the changing groove 29 can adapt to the trajectory of the changing guide rod 23 following the movement of the arc groove 22, and a sliding groove 30 is provided on the side wall of the unit groove 25 close to the spring 19; the positioning shaft 16 is provided in the positioning hole 28, the changing guide rod 23 penetrates the arc groove 22 and is slidably provided in the changing groove 29, the operating rod 21 is slidably provided in the sliding groove 30, and the slider 17 is slidably provided in the telescopic groove 27.

[0037] In this embodiment, in order to cope with plates of various widths and enable the plates to be clamped and fixed by the unobstructed positioning unit 15 , the position of the slider 17 needs to be adjusted.

[0038] Loosen the nut 18 so that the open threaded tube 31 is no longer clamped on the positioning shaft 16, push the positioning arc plate 20 outward, so that the spacing between the positioning arc plates 20 on both sides matches the width of the plate, and then re-tighten the nut 18 to clamp the slider 17 and the positioning shaft 16 again to prevent the slider 17 from moving relative to the positioning shaft 16.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0041] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A plywood gluing and pressing device, characterized in that include: An edge trimming mechanism (1), an avoidance platform (2), a side column (3), an oil cylinder (4), a lifting frame (5) and a three-in-one mechanism (6), wherein the edge trimming mechanism (1) is arranged on the side wall of the avoidance platform (2), the side column (3) is arranged around the edge trimming mechanism (1) and the side wall of the avoidance platform (2), the lifting frame (5) is slidably arranged on the side column (3), the oil cylinder (4) is connected between the lifting frame (5) and the avoidance platform (2), and the three-in-one mechanism (6) slides horizontally on the inner side of the lifting frame (5), including three functions of gluing, cleaning and pre-pressing; The edge trimming mechanism (1) comprises a positioning platform (14) and an unobstructed positioning unit (15), wherein the positioning platform (14) is arranged on a side wall of the avoidance platform (2), and the unobstructed positioning unit (15) comprises multiple groups of slidingly arranged on both sides of the positioning platform (14); The unobstructed positioning unit (15) comprises a slider (17), a positioning arc plate (20), a guide rod (23), an operating rod (21) and a second spring (24); the slider (17) slides on the positioning platform (14); the positioning arc plate (20) is hingedly arranged on the upper end of the slider (17); the guide rod (23) is arranged at the edge area of ​​the bottom of the positioning arc plate (20); the operating rod (21) is slidably arranged in the positioning platform (14) perpendicular to the guide rod (23); the second spring (24) is connected between the operating rod (21) and the positioning platform (14); and the guide rod (23) is slidably arranged in the circular arc groove (22) of the operating rod (21).

2. The plywood gluing and pressing device according to claim 1, characterized in that: The unobstructed positioning unit (15) further comprises a positioning shaft (16), wherein the positioning shaft (16) is disposed through the positioning platform (14), and the sliding block (17) is disposed through the positioning shaft (16).

3. The plywood gluing and pressing device according to claim 2, characterized in that: An open threaded tube (31) is provided on the side wall of the sliding block (17), and a nut (18) is threadedly connected to the open threaded tube (31).

4. The plywood gluing and pressing device according to claim 3, characterized in that: A spring 1 (19) is wound around the positioning shaft (16), and the spring 1 (19) is connected between the slider (17) and the positioning platform (14).

5. The plywood gluing and pressing device according to claim 4, characterized in that: The three-in-one mechanism (6) comprises a slide (7), the slide (7) slides horizontally on the inner side of the lifting frame (5), a pre-pressing roller (10) is provided at the middle part of the lower end of the slide (7), a glue spraying roller (9) is provided at the end of the pre-pressing roller (10) close to the oil cylinder (4), a brush wheel (11) is provided at the end of the pre-pressing roller (10) away from the oil cylinder (4), and a baffle (13) is provided in the area of ​​the slide (7) above the brush wheel (11).

6. The plywood gluing and pressing device according to claim 5, characterized in that: A plurality of groups of unit grooves (25) are symmetrically arranged on the positioning platform (14), and support ribs (26) are arranged in an array in the unit grooves (25). The gaps between the support ribs (26) are larger than the width of the positioning arc plate (20), and gaps are reserved between the support ribs (26) and the two ends of the unit grooves (25).

7. The plywood gluing and pressing device according to claim 6, characterized in that: A telescopic groove (27) is provided on one side of the bottom wall of the unit groove (25) close to the oil cylinder (4), a positioning hole (28) penetrating the positioning platform (14) is provided at the center of the telescopic groove (27), a direction-changing groove (29) is provided above the positioning hole (28), and a sliding groove (30) is provided on the side wall of the unit groove (25) close to the spring 1 (19).

8. The plywood gluing and pressing device according to claim 7, characterized in that: The positioning shaft (16) is disposed in the positioning hole (28), the direction-changing guide rod (23) penetrates the arc groove (22) and is slidably disposed in the direction-changing groove (29), the operating rod (21) is slidably disposed in the slide groove (30), and the slider (17) is slidably disposed in the telescopic groove (27).

9. The plywood gluing and pressing device according to claim 8, characterized in that: Sprocket wheels (8) are symmetrically provided on both sides of the slide (7), and the sprocket wheels (8) are connected to an external power mechanism via a chain.

10. The plywood gluing and pressing device according to claim 9, characterized in that: Both ends of the brush wheel (11) are connected to a motor (12) via belts.

Images