Wood-plastic door plate cooling and fixing device and using method thereof

Abstract

According to the wood-plastic door plate cooling and fixing device and the using method thereof, the interiors of the bottom plate and the top plate are hollow to form the water storage tank, the wood-plastic door plate is arranged between the bottom plate and the top plate, fluid is used for absorbing heat to cool the wood-plastic door plate, and meanwhile expansion deformation caused by the fact that materials in the wood-plastic door plate make direct contact with water is avoided; a first fan and an air inlet are matched for blowing air, and a second fan and an air outlet are matched for exhausting air, so that a hollow structure of the extruded wood-plastic door plate is cooled, and bending deformation caused by rising of internal hot air on the wood-plastic door plate, quick cooling at the upper part and slow cooling at the lower part is avoided. The air outlet is funnel-shaped, and the diameter of one end, close to the air duct, of the air outlet is larger; the diameter of one end close to the connecting seat on the other side is smaller; the air inlet is cylindrical; the first fan and the funnel-shaped air outlet enable the local wind flow velocity to be increased, and the cooling effect is improved; and the second fan and the cylindrical air inlet enable hot air in the wood-plastic door plate to quickly flow out, so that the cooling efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wood-plastic board production, and in particular to a wood-plastic door panel cooling and fixing device and a use method thereof. Background Art

[0002] Wood plastic door panels are made by mixing ultra-fine wood powder with polymer resin through a molding process. They have the excellent properties of both wood and plastic, and the products produced have achieved a true imitation wood effect. Because the raw materials used and the production process do not use glue to bond, no harmful substances such as formaldehyde, benzene, ammonia, trichloroethylene, etc. will be produced. It is a green and environmentally friendly door panel that replaces traditional wood.

[0003] All wood-plastic door panels are cut after extrusion molding, and are cut into different shapes according to needs. Of course, the general shape and structure will be extruded during extrusion to facilitate subsequent processing operations. After extrusion molding, the board needs to be cooled to keep its shape after extrusion more stable. When cooling, circulating water is used for cooling, which sometimes causes the board to deform, which is very inconvenient for the subsequent processing of the board. Therefore, the wood-plastic board needs to use a cooling and shaping table for cooling and shaping during the production process to ensure that the wood-plastic board remains flat and does not deform after cooling.

[0004] After searching, the Chinese invention patent application with application number "CN202310941889.2" discloses a cooling and shaping equipment for wood-plastic board processing, which relates to the technical field of wood-plastic board production, including a first bottom plate and a top plate, a first cooling and shaping frame and a second cooling and shaping frame are respectively arranged at both ends of the first bottom plate, and a plurality of cooling and shaping platforms are arranged between the first cooling and shaping frame and the second cooling and shaping frame, and the plurality of cooling and shaping platforms are alternately connected with the first cooling and shaping frame and the second cooling and shaping frame from top to bottom, and the cooling and shaping platform includes a cooling and shaping flat plate, a first limiting slider and a first pressure spring, a second bottom plate is arranged at the lower end of the first bottom plate, a separation and feeding mechanism and an extrusion and shaping mechanism are arranged at the upper end of the second bottom plate, and a circulating cooling structure is arranged at the upper end of the top plate; the present invention arranges a first cooling and shaping frame, a second cooling and shaping frame, a plurality of cooling and shaping platforms and a separation and feeding mechanism, so as to improve the working efficiency of the equipment and prevent the wood-plastic board from being deformed when it is not under pressure for a long time.

[0005] However, it was found in actual use that the cooling device on the existing cooling and shaping equipment for processing wood-plastic panels cannot drive away the hot air in the wood-plastic door panel, and can only achieve cooling on the surface of the panel. It cannot solve the problem of bending and deformation caused by the rising of hot air inside the panel, fast heat dissipation at the top and slow heat dissipation at the bottom. At the same time, it relies on heat sinks for cooling, resulting in long cooling and shaping time and low efficiency.

[0006] In summary, there is an urgent need for a wood-plastic door panel cooling and fixing device and a method of using the same to solve the above problems. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a wood-plastic door panel cooling and fixing device and a method for using the same, which solves the problem that the cooling device on the existing cooling and shaping equipment for wood-plastic board processing cannot drive away the hot air in the wood-plastic door panel, and only achieves cooling of the board surface, while relying on heat sinks for cooling, resulting in long cooling and shaping time and low efficiency.

[0008] According to a first aspect of the present invention, a cooling and fixing device for a wood-plastic door panel is provided, comprising a base, a top plate, a connecting seat and a bottom plate, wherein the base is arranged on a horizontal ground, the bottom plate is fixedly installed above the base, the top plate is arranged above the bottom plate, and the bottom plate and the top plate are hollow inside to form a water storage tank; a water inlet pipe and a water outlet pipe are respectively arranged on one side in the length direction of the top plate and the bottom plate, and the water inlet pipe and the water outlet pipe on the top plate and the bottom plate are arranged correspondingly; the connecting seat is arranged between the top plate and the bottom plate to fix the wood-plastic board.

[0009] A driving assembly is fixedly installed on the outer walls on both sides of the width direction of the top plate, the connecting seat and the bottom plate, and the driving assembly includes a slider, a spring and a mounting block; one end of the slider is fixedly connected to the side edge in the width direction of the top plate, and the other end is inserted into the interior of the mounting block, and can slide along the mounting block under the action of external force; a spring is movably installed on the outer wall of the slider; one end of the spring is connected to the top plate, and the other end is fixedly connected to the mounting block; a through groove is provided at the end of the mounting block away from the slider.

[0010] A first connecting rod is inserted into the driving assembly connected to the top plate, and the top plate is connected to the first connecting rod through the driving assembly; a second connecting rod is inserted into the driving assembly connected to the connecting seat, and the connecting seat is connected to the second connecting rod through the driving assembly; a third connecting rod is inserted into the driving assembly connected to the bottom plate, and the bottom plate is connected to the third connecting rod through the driving assembly; the first connecting rod, the second connecting rod and the third connecting rod are arranged in the same vertical plane.

[0011] A track is provided on the upper surface of the base, and the track is provided along the length direction of the base; a motor is fixedly installed in the middle of the track, and the motor adopts a dual-rotor motor, and the output ends at both ends are respectively connected to screw rods, and the screw rods are symmetrically distributed; two moving seats are provided at both ends inside the track, and the moving seats are movably installed on the screw rods; a protrusion is provided at the bottom of the moving seat, and the protrusion is embedded in the track, and the rotation of the motor can drive the moving seat to move toward or away from each other.

[0012] A support rod is fixedly installed on the top of the moving seat, and the support rod extends from the moving seat to both sides, and the two ends of the support rod are fixedly connected to the two sliding seats respectively; a fixing plate is arranged between the moving seat and the sliding seat on one side, and the fixing plate is fixedly installed on the base, and a first guide groove is opened on the fixing plate, and the support rod passes through the first guide groove and can slide along the first guide groove.

[0013] A mounting plate is provided below the slide seat, and the mounting plate is fixedly installed above the base; the slide seat can slide above the mounting plate, and baffles are provided at both ends of the mounting plate to limit the sliding distance of the slide seat; a second guide groove, a third guide groove and a fourth guide groove are provided above the slide seat.

[0014] The first connecting rod extends from the mounting block to both ends and is inserted into the second guide groove above the slide seat; the second connecting rod extends from the mounting block to both ends and is inserted into the third guide groove above the slide seat; the third connecting rod extends from the mounting block to both ends and is inserted into the fourth guide groove above the slide seat.

[0015] The connecting seats are arranged in two symmetrical configurations, and a through air duct is arranged in the connecting seats; a first fan is fixedly mounted on the connecting seat on one side, and the first fan is arranged at one end of the air duct to suck air inwardly; an array-distributed air outlet is arranged on the connecting seat close to the first fan; a second fan and an air inlet are fixedly mounted on the connecting seat on the other side, and the second fan is used to exhaust air outwardly, and the air inlet is arranged correspondingly to the air outlet; As a preferred scheme for the use of the wood-plastic door panel cooling and fixing device described in the present invention, the air outlet is configured to be funnel-shaped, with a larger diameter at the end close to the air duct and a smaller diameter at the end close to the other side connecting seat; the air inlet is configured to be cylindrical.

[0016] As a preferred embodiment of the method of using the wood-plastic door panel cooling and fixing device described in the present invention, the fourth guide groove and the first guide groove are both horizontal and parallel to the base, the third guide groove and the fourth guide groove are at an inclined angle to the base, and the distance between the third guide groove and the second guide groove is equal to twice the distance between the third guide groove and the fourth guide groove.

[0017] As a preferred solution of the method for using the cooling and fixing device for a wood-plastic door panel described in the present invention, a support seat is fixedly installed between the base and the bottom plate.

[0018] In a second aspect of the present invention, the present invention provides a method for using a cooling and fixing device for a wood-plastic door panel, wherein the reinforcing rib structure inside the wood-plastic door panel is a cooling and fixing device for a wood-plastic door panel according to the first aspect of the present invention, and the method for using is as follows: S1, the motor works, and the top plate, the connecting seat and the bottom plate are opened by the driving assembly; S2. Use a slider and a connecting seat to clamp the wood-plastic door panel, and connect the air inlet and the air outlet to the hollow structure of the wood-plastic door panel; S3, the motor starts to work, and the top plate, the connecting seat and the bottom plate are closed by the driving assembly; S4, using the water inlet pipe and the water outlet pipe to fill the water storage tank and circulate water; S5. Use the first fan and the air inlet to blow air, and the second fan and the air outlet to exhaust air.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. A cooling and fixing device for a wood-plastic door panel shown in the present invention forms a water storage tank by arranging the hollow interior of the bottom plate and the top plate, and arranging the wood-plastic door panel between the bottom plate and the top plate, and utilizing the fluid to absorb heat to cool the wood-plastic door panel, while avoiding the expansion and deformation caused by direct contact of the material in the wood-plastic door panel with water; cooperate with the first fan and the air inlet on the connecting seat to blow air, and the second fan and the air outlet to exhaust air, so as to cool the hollow structure of the extruded wood-plastic door panel, avoid the internal hot air rising on the wood-plastic door panel, and avoid the bending deformation caused by the fast heat dissipation at the upper side and the slow heat dissipation at the lower side, and cooperate with the pressing effect of the bottom plate and the top plate on the wood-plastic door panel, so as to further ensure the flatness of the wood-plastic door panel.

[0020] 2. The present invention shows a cooling and fixing device for a wood-plastic door panel, which includes a slider, a spring and a mounting block by setting the driving component; one end of the slider is fixedly connected to the side of the top plate in the width direction, and the other end is inserted into the inside of the mounting block, and can slide along the mounting block under the action of external force; a spring is movably installed on the outer wall of the slider; the setting of the spring and the slider not only facilitates the replacement and engagement of the wood-plastic door panel on the connecting seat, but also produces a buffering effect to avoid damage to the surface of the wood-plastic door panel due to the movement of the top plate and the bottom plate.

[0021] 3. The present invention shows a wood-plastic door panel cooling and fixing device. By setting the motor to adopt a dual-rotor motor, the rotation of the motor can drive the movable seat to move toward or away from each other. The movable seat, slider, drive assembly, and fixed plate are used to enable a single power source to accurately control the pressure of the top plate and the bottom plate on the wood-plastic door panel. The operation is simple, the control is precise, and manpower is saved.

[0022] 4. The present invention shows a cooling and fixing device for a wood-plastic door panel, which is configured such that the first fan is arranged to draw air inward; an array-distributed air outlet is arranged on a connecting seat close to the first fan; a second fan and an air inlet are fixedly installed on the connecting seat on the other side, the second fan exhausts air outward, and the air inlet is arranged corresponding to the air outlet; the air outlet is arranged in a funnel shape, and the end close to the air duct has a larger diameter; the end close to the connecting seat on the other side has a smaller diameter; the air inlet is arranged in a cylindrical shape; the first fan and the funnel-shaped air outlet increase the local wind flow rate and improve the cooling effect; the second fan and the cylindrical air inlet allow the hot air in the wood-plastic door panel to flow out quickly, thereby improving the cooling efficiency.

[0023] 5. The present invention shows a cooling and fixing device for a wood-plastic door panel, which limits the sliding distance of the slider by setting a first guide groove, a second guide groove, a third guide groove, a fourth guide groove and a baffle, thereby ensuring the lowering distance of the top plate and the connecting seat, and further ensuring the distance between the top plate and the bottom plate, thereby avoiding damage to the wood-plastic door panel due to too close a distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of a cooling and fixing device for a wood-plastic door panel of the present invention; Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at A above; Figure 3 for Figure 1 A schematic diagram of the local enlarged structure at B above; Figure 4 It is a front view structural schematic diagram of a wood-plastic door panel cooling and fixing device of the present invention; Figure 5 for Figure 4 A schematic cross-sectional structure diagram of ; Figure 6 It is a top view structural schematic diagram of a wood-plastic door panel cooling and fixing device of the present invention; Figure 7 It is a partial cross-sectional view of a left-side structural schematic diagram of a cooling and fixing device for a wood-plastic door panel of the present invention.

[0025] In the figure: 1. base; 2. top plate; 3. bottom plate; 4. connecting seat; 5. sliding seat; 6. mounting plate; 7. support rod; 8. fixing plate; 9. first guide groove; 10. first connecting rod; 11. second connecting rod; 12. third connecting rod; 13. fourth guide groove; 14. second guide groove; 15. third guide groove; 16. water inlet pipe; 17. water outlet pipe; 18. mounting block; 19. sliding block; 20. spring; 21. first fan; 22. air outlet; 23. baffle; 24. second fan; 25. motor; 26. moving seat; 27. bump; 28. track; 29. ​​screw rod; 30. air duct; 31. water storage tank; 32. supporting seat. DETAILED DESCRIPTION

[0026] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position. Embodiment 1

[0027] A wood plastic door panel cooling and fixing device, please refer to Figure 1-7 , comprising a base 1, a top plate 2, a connecting seat 4 and a bottom plate 3, wherein the base 1 is arranged on a horizontal ground; See also Figure 1 , Figure 2 and Figure 7 The bottom plate 3 is fixedly mounted on the top of the base 1 through a support seat 32; the top plate 2 is arranged above the bottom plate 3, and the connecting seat 4 is arranged between the top plate 2 and the bottom plate 3 to fix the wood-plastic board; the bottom plate 3 and the top plate 2 are hollow inside to form a water storage tank 31; the top plate 2 and the bottom plate 3 are respectively provided with a water inlet pipe 16 and a water outlet pipe 17 on one side of the length direction, and the water inlet pipe 16 and the water outlet pipe 17 on the top plate 2 and the bottom plate 3 are correspondingly arranged; the wood-plastic door panel is cooled by absorbing heat from the fluid, and the flowing water will take away the heat of the wood-plastic door panel; at the same time, the expansion and deformation caused by direct contact of the material in the wood-plastic door panel with water is avoided.

[0028] See also Figure 3A driving assembly is fixedly installed on the outer walls on both sides of the width direction of the top plate 2, the connecting seat 4 and the bottom plate 3, and the driving assembly includes a slider 19, a spring 20 and a mounting block 18; one end of the slider 19 is fixedly connected to the side of the top plate 2 in the width direction, and the other end is inserted into the inside of the mounting block 18, and can slide along the mounting block 18 under the action of external force; a spring 20 is movably installed on the outer wall of the slider 19; one end of the spring 20 is connected to the top plate 2, and the other end is fixedly connected to the mounting block 18; the arrangement of the spring 20 and the slider 19 not only facilitates the replacement and engagement of the wood-plastic door panel on the connecting seat 4, but also produces a buffering effect to avoid damage to the surface of the wood-plastic door panel due to the movement of the top plate 2 and the bottom plate 3.

[0029] See also Figure 3 A through groove is provided at one end of the mounting block 18 away from the sliding block 19 .

[0030] See also Figure 1 , a first connecting rod 10 is inserted into the driving assembly connected to the top plate 2, and the top plate 2 is connected to the first connecting rod 10 through the driving assembly; a second connecting rod 11 is inserted into the driving assembly connected to the connecting seat 4, and the connecting seat 4 is connected to the second connecting rod 11 through the driving assembly; a third connecting rod 12 is inserted into the driving assembly connected to the bottom plate 3, and the bottom plate 3 is connected to the third connecting rod 12 through the driving assembly; See also Figure 5 A track 28 is provided on the upper surface of the base 1, and the track 28 is provided along the length direction of the base 1; a motor 25 is fixedly installed in the middle of the track 28, and the motor 25 adopts a double-rotor motor, and the output ends at both ends are respectively connected to screw rods 29, and the screw rods 29 are symmetrically distributed; two moving seats 26 are provided at both ends of the track 28, and the moving seats 26 are movably installed on the screw rods 29; a convex block 27 is provided at the bottom of the moving seat 26, and the convex block 27 is engaged with the track 28, and the rotation of the motor 25 can drive the moving seat 26 to move toward or away from each other; the motor 25, as a single power source, accurately controls the pressure of the top plate 2 and the bottom plate 3 on the wood-plastic door panel, which is simple to operate, precise in control, and saves manpower.

[0031] See also Figure 6 A support rod 7 is fixedly installed on the top of the movable seat 26, and the support rod 7 extends from the movable seat 26 to both sides, and the two ends of the support rod 7 are fixedly connected to two slide seats 5 respectively; a fixing plate 8 is arranged between the movable seat 26 and the slide seat 5 on one side, and the fixing plate 8 is fixedly installed on the base 1, and a first guide groove 10 is opened on the fixing plate 8, and the support rod 7 passes through the first guide groove 10 and can slide along the first guide groove 10.

[0032] See also Figure 4 A mounting plate 6 is provided below the slide 5, and the mounting plate 6 is fixedly installed above the base 1; the slide 5 can slide above the mounting plate 6, and baffles 23 are provided at both ends of the mounting plate 6 to limit the sliding distance of the slide 5; a second guide groove 14, a third guide groove 15 and a fourth guide groove 13 are provided above the slide 5; See also Figure 4 The first connecting rod 10 extends from the mounting block 18 to both ends and is inserted into the second guide groove 14 above the slide 5; the second connecting rod 11 extends from the mounting block 18 to both ends and is inserted into the third guide groove 15 above the slide 5; the third connecting rod 12 extends from the mounting block 18 to both ends and is inserted into the fourth guide groove 13 above the slide 5.

[0033] See also Figure 4-Figure 5 The fourth guide groove 13 and the first guide groove 10 are both horizontal and parallel to the base 1. The third guide groove 15 and the fourth guide groove 13 are inclined at an angle to the base 1, and the distance between the third guide groove 15 and the second guide groove 14 is equal to twice the distance between the third guide groove 15 and the fourth guide groove 13. The first connecting rod 10, the second connecting rod 11 and the third connecting rod 12 are kept in the same vertical plane. The descending distance of the top plate 2 and the connecting seat 4 is ensured, and then the distance between the top plate 2 and the bottom plate 3 is ensured, so as to avoid damage to the wood-plastic door panel due to too close distance.

[0034] See also Figure 1 and Figure 2 The connecting seat 4 is set to be two symmetrical ones, and a through air duct 30 is set in the connecting seat 4; a first fan 21 is fixedly installed on the connecting seat 4 on one side, and the first fan 21 is set at one end of the air duct 30 to suck air inward; an array-distributed air outlet 22 is set on the connecting seat 4 close to the first fan 21; a second fan 24 and an air inlet are fixedly installed on the connecting seat 4 on the other side, and the second fan 24 is used to exhaust air outward, and the air inlet is set corresponding to the air outlet 22; the hollow structure of the extruded wood-plastic door panel is cooled to avoid the internal hot air rising on the wood-plastic door panel, and the bending deformation caused by fast heat dissipation at the upper side and slow heat dissipation at the lower side is avoided.

[0035] Preferably, the air outlet 22 is configured to be funnel-shaped, with a larger diameter at one end close to the air duct 30 and a smaller diameter at the other end close to the connecting seat 4; the air inlet is configured to be cylindrical; the first fan 21 and the funnel-shaped air outlet 22 increase the local wind flow rate and improve the cooling effect; the second fan 24 and the cylindrical air inlet allow the hot air in the wood-plastic door panel to flow out quickly, thereby improving the cooling efficiency. Embodiment 2

[0036] A method for using a cooling and fixing device for a wood-plastic door panel, wherein the cooling and fixing device inside the wood-plastic door panel is described in Example 1, and the details are as follows: S1, the motor 25 works, and the top plate 2, the connecting seat 4 and the bottom plate 3 are opened by the driving assembly; S2, using the slider 19 and the connecting seat 4 to clamp the wood-plastic door panel, and the air inlet and the air outlet 22 are connected to the hollow structure of the wood-plastic door panel; S3, the motor 25 works, and the top plate 2, the connecting seat 4 and the bottom plate 3 are closed by the driving assembly; S4, using the water inlet pipe 16 and the water outlet pipe 17 to fill the water storage tank 31 and circulate water; S5. Use the first fan 21 and the air inlet to blow air, and the second fan 24 and the air outlet 22 to exhaust air.

[0037] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wood-plastic door panel cooling and fixing device, comprising a base (1), a top plate (2), a connecting seat (4) and a bottom plate (3), wherein the base (1) is arranged on a horizontal ground, the bottom plate (3) is fixedly mounted above the base (1), and the top plate (2) is arranged above the bottom plate (3); It is characterized in that The bottom plate (3) and the top plate (2) are hollow inside to form a water storage tank (31); a water inlet pipe (16) and a water outlet pipe (17) are respectively arranged on one side of the length direction of the top plate (2) and the bottom plate (3); the water inlet pipe (16) and the water outlet pipe (17) on the top plate (2) and the bottom plate (3) are arranged correspondingly; the connecting seat (4) is arranged between the top plate (2) and the bottom plate (3) to fix the wood-plastic board.

2. A wood-plastic door panel cooling and fixing device according to claim 1, characterized in that: A driving assembly is fixedly mounted on the outer walls of both sides of the top plate (2), the connecting seat (4) and the bottom plate (3) in the width direction, and the driving assembly comprises a slider (19), a spring (20) and a mounting block (18); one end of the slider (19) is fixedly connected to the side edge of the top plate (2) in the width direction, and the other end is inserted into the interior of the mounting block (18); a spring (20) is movably mounted on the outer wall of the slider (19); one end of the spring (20) is connected to the top plate (2), and the other end is fixedly connected to the mounting block (18); a through groove is provided at one end of the mounting block (18) away from the slider (19).

3. A cooling and fixing device for a wood-plastic door panel according to claim 2, characterized in that: A first connecting rod (10) is inserted into a driving assembly connected to the top plate (2), and the top plate (2) is connected to the first connecting rod (10) through the driving assembly; a second connecting rod (11) is inserted into a driving assembly connected to the connecting seat (4), and the connecting seat (4) is connected to the second connecting rod (11) through the driving assembly; a third connecting rod (12) is inserted into a driving assembly connected to the bottom plate (3), and the bottom plate (3) is connected to the third connecting rod (12) through the driving assembly; the first connecting rod (10), the second connecting rod (11) and the third connecting rod (12) are maintained in the same vertical plane.

4. A cooling and fixing device for a wood-plastic door panel according to claim 3, characterized in that: A track (28) is arranged on the upper surface of the base (1), and the track (28) is arranged along the length direction of the base (1); a motor (25) is fixedly installed in the middle of the track (28), and the motor (25) adopts a double-rotor motor, and the output ends at both ends are respectively connected to screw rods (29), and the screw rods (29) are symmetrically distributed; two moving seats (26) are arranged at both ends inside the track (28), and the moving seats (26) are movably mounted on the screw rods (29); a convex block (27) is arranged at the bottom of the moving seat (26), and the convex block (27) is engaged with the track (28), and the rotation of the motor (25) can drive the moving seat (26) to move towards or away from each other.

5. A cooling and fixing device for a wood-plastic door panel according to claim 4, characterized in that: A support rod (7) is fixedly mounted on the top of the movable seat (26), the support rod (7) extending from the movable seat (26) to both sides, and two ends of the support rod (7) are respectively connected to two slide seats (5); a fixing plate (8) is arranged between the movable seat (26) and the slide seat (5) on one side, the fixing plate (8) is fixedly mounted on the base (1), a first guide groove (10) is formed on the fixing plate (8), and the support rod (7) passes through the first guide groove (10) and can slide along the first guide groove (10).

6. A cooling and fixing device for a wood-plastic door panel according to claim 5, characterized in that: A mounting plate (6) is provided below the slide seat (5), and the mounting plate (6) is fixedly mounted above the base (1); the slide seat (5) can slide above the mounting plate (6), and baffles (23) are provided at both ends of the mounting plate (6); a second guide groove (14), a third guide groove (15), and a fourth guide groove (13) are provided above the slide seat (5).

7. A cooling and fixing device for a wood-plastic door panel according to claim 6, characterized in that: The first connecting rod (10) extends from the mounting block (18) to both ends and is inserted into a second guide groove (14) above the slide seat (5); the second connecting rod (11) extends from the mounting block (18) to both ends and is inserted into a third guide groove (15) above the slide seat (5); the third connecting rod (12) extends from the mounting block (18) to both ends and is inserted into a fourth guide groove (13) above the slide seat (5).

8. The cooling and fixing device for a wood-plastic door panel according to claim 1, characterized in that: The connecting seats (4) are arranged in two symmetrical arrangements, and a penetrating air duct (30) is arranged in the connecting seats (4); a first fan (21) is fixedly mounted on the connecting seat (4) on one side, and the first fan (21) is arranged at one end of the air duct (30); an array-distributed air outlet (22) is arranged on the connecting seat (4) close to the first fan (21); and a second fan (24) and an air inlet are fixedly mounted on the connecting seat (4) on the other side, and the air inlet is arranged corresponding to the air outlet (22).

9. A cooling and fixing device for a wood-plastic door panel according to claim 8, characterized in that: The air outlet (22) is configured to be funnel-shaped, with the end close to the air duct (30) having a larger diameter and the end close to the other side connecting seat (4) having a smaller diameter; the air inlet is configured to be cylindrical.

10. A cooling and fixing device for a wood-plastic door panel according to claim 7, characterized in that: The fourth guide groove (13) and the first guide groove (10) are both horizontal and parallel to the base (1); the third guide groove (15) and the fourth guide groove (13) are inclined at an angle to the base (1); and the distance between the third guide groove (15) and the second guide groove (14) is equal to twice the distance between the third guide groove (15) and the fourth guide groove (13).

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