Constant-temperature cooling device for PVC decorative film production

Abstract

The invention belongs to the technical field of PVC decorative film production, and particularly relates to a constant-temperature cooling device for PVC decorative film production, the constant-temperature cooling device comprises a shell, a cover plate, a feeding hole, a discharging hole and a temperature sensor, the cover plate is rotatably connected to the top of the shell, the feeding hole is formed in the left side of the shell, the discharging hole is formed in the right side of the shell, and the temperature sensor is arranged in the shell. The temperature sensor is fixedly connected to the interior of the bottom of the shell; according to the device, the filter plate is disassembled, assembled and replaced through a simple structure, the effect of filtering impurities in cooling water is achieved through the filter plate, the situation that the impurities adhere to a PVC decorative film to affect use is prevented, the service life of the PVC decorative film is prolonged, the service life of the PVC decorative film is prolonged, and the service life of the PVC decorative film is prolonged. And a rotating rod drives a positioning rod to move to fix or unlock a transverse plate, so that the winding rollers are quickly disassembled, assembled and replaced, the cooled PVC decorative film is conveniently wound, subsequent processing and use are facilitated, and good usability is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of PVC decorative film production, and in particular to a constant temperature cooling device for PVC decorative film production. Background Art

[0002] The main component of PVC film is polyvinyl chloride, which has the characteristics of low cost, strong stability and good plasticity. It is widely used in various fields such as building materials, packaging, and medicine. During the production process of PVC film, the high temperature will cause the surface of the PVC film to shrink. It is necessary to cool down during the production process to avoid damage to the PVC film.

[0003] The constant temperature cooling device for PVC decorative film production in the prior art is not convenient for replacing the winding roller for winding the PVC decorative film during actual use, which is inconvenient during use. The cooling water used to cool the PVC decorative film is usually recycled, and foreign objects are easily mixed into the cooling and heat dissipation process of the cooling water. These foreign objects will adhere to the surface of the PVC decorative film when cooling the PVC decorative film, which is easy to affect the subsequent use of the PVC decorative film. Therefore, we propose a constant temperature cooling device for PVC decorative film production to solve the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that it is inconvenient to replace the winding roller for winding up the PVC decorative film during actual use, which causes inconvenience during use. The cooling water used to cool the PVC decorative film is usually circulated, and foreign matter is easily mixed into the cooling water during the cooling and heat dissipation process. These foreign matter will adhere to the surface of the PVC decorative film when the PVC decorative film is cooled, which is easy to affect the subsequent use of the PVC decorative film. A constant temperature cooling device for PVC decorative film production is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A constant temperature cooling device for producing PVC decorative film, comprising:

[0007] A housing, a cover plate, a material inlet, a material outlet and a temperature sensor, wherein the cover plate is rotatably connected to the top of the housing, the material inlet is opened on the left side of the housing, the material outlet is opened on the right side of the housing, and the temperature sensor is fixedly connected to the bottom of the housing;

[0008] A filter box, a water inlet pipe, a water outlet pipe, a solenoid valve, a filter plate, a support plate, a motor, a limit seat, a transverse plate, a fixed plate and a socket, wherein the filter box is fixedly connected to the left side of the shell, the water outlet pipe is fixedly connected to the right side of the shell, the solenoid valve is fixedly connected to the left side of the filter box, the water inlet pipe is fixedly connected to the left side of the solenoid valve, and the filter box, the shell, the water inlet pipe, the water outlet pipe and the solenoid valve are connected, a fixing mechanism is provided on the top of the filter box, the socket is opened on the top of the filter box, the filter plate is adapted to the socket, the filter plate is movably connected to the inner wall of the filter box, the support plate is fixedly connected to the right side of the shell, the fixed plate is fixedly connected to the top of the support plate, the motor is fixedly connected to the front side of the fixed plate, the transverse plate is movably connected to the top of the support plate, the number of the limit seats is two, and the two limit seats are rotatably connected to the side where the fixed plate and the transverse plate are close to each other, the rear side of the motor output shaft is fixedly connected to the front side of the limit seat located on the front side, and a positioning mechanism is provided on the rear side of the transverse plate.

[0009] A fixing mechanism, the fixing mechanism is connected to the filter plate, and the fixing mechanism is used to fix the filter plate;

[0010] The positioning mechanism is connected to the transverse plate and is used for positioning the transverse plate.

[0011] As a preferred solution of the present invention, the inner wall of the shell is symmetrically rotatably connected to support rollers, and the number of support rollers is two, and the inner wall of the shell is rotatably connected to conveying rollers.

[0012] As a preferred solution of the present invention, a socket is fixedly connected to the bottom of the filter box, and the socket is adapted to the filter plate.

[0013] As a preferred solution of the present invention, the fixing mechanism includes a pressing plate, a transmission plate, a transmission shaft, a hollow rod, a sliding rod, a sliding plate, an insert block and a slot;

[0014] The transmission plate is movably connected to the top of the filter box, the pressure plate is fixedly connected to the top of the transmission plate, the transmission shaft is fixedly connected to the front side of the transmission plate, the hollow rod is rotatably connected to the top of the filter box, and the inner wall of the hollow rod is slidably connected to the outer wall of the transmission shaft, the sliding rod is rotatably connected to the rear side of the hollow rod, the slide plate is slidably connected to the top of the filter box, the right side of the slide plate is slidably connected to the left side of the slide rod, the plug block is fixedly connected to the left side of the slide plate, the slot is opened on the right side of the filter plate, and the plug block is adapted to the slot.

[0015] As a preferred solution of the present invention, the positioning mechanism includes a limit plate, a rotating rod, a rotating wheel, a contact plate, a push rod, a support frame, a fixing sleeve and a positioning rod;

[0016] The rotating rod is rotatably connected to the rear side of the transverse plate, the rotating wheel is rotatably connected to the right side of the rotating rod, the fixing sleeve is fixedly connected to the rear side of the transverse plate, the supporting frame is fixedly connected to the rear side of the fixing sleeve, the positioning rod is slidably connected to the right side of the transverse plate, the limiting plate is fixedly connected to the top of the supporting plate, and the limiting plate passes through the transverse plate, the contact plate is slidably connected to the top of the supporting frame, the rear side of the contact plate is in active contact with the outer wall of the rotating wheel, the pushing rod is rotatably connected to the right side of the contact plate, the right side of the positioning rod is rotatably connected to the left side of the pushing rod, and the top of the limiting plate is symmetrically provided with positioning grooves, and the number of the positioning grooves is two, and the two positioning grooves are both adapted to the positioning rod.

[0017] As a preferred solution of the present invention, the top of the filter box is symmetrically fixedly connected with two vertical plates, and the left and right sides of the transmission plate are respectively slidably connected to the sides of the two vertical plates close to each other.

[0018] As a preferred solution of the present invention, a compression spring is fixedly connected to the top of the filter box, and the top of the compression spring is fixedly connected to the bottom of the transmission plate.

[0019] As a preferred solution of the present invention, a return spring is fixedly connected to the left side of the vertical plate, and the left side of the return spring is fixedly connected to the right side of the slide plate.

[0020] As a preferred solution of the present invention, a force storage spring is fixedly connected to the front side of the contact plate, and the front side of the force storage spring is fixedly connected to the rear side of the transverse plate.

[0021] As a preferred solution of the present invention, the transverse plate is a hollow structure, a limiting groove is provided on the inner wall of the transverse plate, and the inner wall of the limiting groove is slidably connected to the outer wall of the limiting plate.

[0022] Beneficial effects:

[0023] 1. The motor drives the limit seat to rotate and rewind the cooled PVC decorative film. The positioning mechanism fixes or unlocks the horizontal plate, thereby fixing the rewinding roller for rewinding the PVC decorative film. The filter plate is used to filter impurities in the cooling water. The fixing mechanism fixes or unlocks the filter plate, and the filter plate can be replaced every 100 years.

[0024] 2. When the rotating rod rotates, it drives the rotating wheel to move and push the contact plate. At this time, the lateral movement of the contact plate will compress the force storage spring. At the same time, the lateral movement of the contact plate will push the push rod. When the push rod moves, it will push the positioning rod upward. At this time, the positioning rod moves upward and disengages from the positioning groove. At this time, the horizontal plate can be pushed to move to fix or unlock the winding roller;

[0025] 3. When the pressure plate moves, the transmission plate will move downward. At this time, the movement of the transmission plate will drive the transmission shaft to move. When the transmission shaft moves, it will push the hollow rod to rotate. The rotation of the hollow rod will push the slide bar to slide on the right side of the slide plate and pull the slide plate to move right. The right movement of the slide plate will compress the return spring and drive the insert block to move right. At this time, the insert block is out of contact with the slot to unlock the filter plate.

[0026] The present invention uses a simple structure to disassemble and replace the filter plate, and achieves the effect of filtering impurities in the cooling water through the filter plate, preventing the impurities from adhering to the PVC decorative film and affecting its use. The rotating rod drives the positioning rod to move to fix or unlock the cross plate, and realizes the rapid disassembly and replacement of the winding roller, so that the cooled PVC decorative film can be wound up for subsequent processing and use, which has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front view of the present invention;

[0028] Figure 2 It is a front cross-sectional view of the present invention;

[0029] Figure 3 It is a partial side sectional view of the present invention;

[0030] Figure 4 The appended Figure 2 Schematic diagram of the structure of part A;

[0031] Figure 5 The appended Figure 3 The structural diagram of part B;

[0032] Figure 6 It is a diagram of the pressing plate, the transmission plate and the transmission shaft of the present invention;

[0033] Figure 7 A three-dimensional diagram of the slide plate, the insert block and the slide bar of the present invention;

[0034] Figure 8 It is a three-dimensional diagram of the limiting seat, the horizontal plate and the limiting groove of the present invention.

[0035] Fig. 9 A three-dimensional diagram of the rotating rod, rotating wheel, contact plate and supporting frame of the present invention;

[0036] Fig.10 It is a three-dimensional diagram of the push rod, the fixing sleeve and the positioning rod of the present invention.

[0037] In the figure: 1. shell; 2. cover plate; 3. feed hole; 4. discharge hole; 5. support roller; 6. conveyor roller; 7. temperature sensor; 8. filter box; 9. water inlet pipe; 10. water outlet pipe; 11. solenoid valve; 12. filter plate; 13. pressure plate; 14. transmission plate; 15. transmission shaft; 16. vertical plate; 17. compression spring; 18. hollow rod; 19. slide bar; 20. slide plate; 21. reset spring; 22. plug block; 23. slot; 24. support plate; 25. motor; 26. limit seat; 27. horizontal plate; 28. limit plate; 29. ​​limit slot; 30. positioning slot; 31. rotating rod; 32. rotating wheel; 33. contact plate; 34. storage spring; 35. push rod; 36. support frame; 37. fixing sleeve; 38. positioning rod; 39. fixing plate; 40. socket; 41. socket. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0039] Example

[0040] Reference Figure 1-Figure 10 , a constant temperature cooling device for producing PVC decorative film, comprising

[0041] The housing 1, the cover plate 2, the feed hole 3, the discharge hole 4 and the temperature sensor 7, the cover plate 2 is rotatably connected to the top of the housing 1, the feed hole 3 is opened on the left side of the housing 1, the discharge hole 4 is opened on the right side of the housing 1, and the temperature sensor 7 is fixedly connected to the bottom of the housing 1;

[0042] Filter box 8, water inlet pipe 9, water outlet pipe 10, solenoid valve 11, filter plate 12, support plate 24, motor 25, limit seat 26, horizontal plate 27, fixed plate 39 and socket 40, filter box 8 is fixedly connected to the left side of shell 1, water outlet pipe 10 is fixedly connected to the right side of shell 1, solenoid valve 11 is fixedly connected to the left side of filter box 8, water inlet pipe 9 is fixedly connected to the left side of solenoid valve 11, and filter box 8, shell 1, water inlet pipe 9, water outlet pipe 10 are connected with solenoid valve 11, a fixing mechanism is provided on the top of filter box 8, and socket 40 is opened on the top of filter box 8, The filter plate 12 is adapted to the socket 40, the filter plate 12 is movably connected to the inner wall of the filter box 8, the support plate 24 is fixedly connected to the right side of the outer shell 1, the fixed plate 39 is fixedly connected to the top of the support plate 24, the motor 25 is fixedly connected to the front side of the fixed plate 39, the cross plate 27 is movably connected to the top of the support plate 24, there are two limit seats 26, the two limit seats 26 are respectively rotatably connected to the side where the fixed plate 39 and the cross plate 27 are close to each other, the rear side of the output shaft of the motor 25 is fixedly connected to the front side of the limit seat 26 located on the front side, and a positioning mechanism is provided on the rear side of the cross plate 27.

[0043] A fixing mechanism, the fixing mechanism is connected to the filter plate 12, and the fixing mechanism is used to fix the filter plate 12;

[0044] The positioning mechanism is connected to the transverse plate 27 and is used to position the transverse plate 27 .

[0045] By means of the above mechanism: the motor 25 is convenient to drive the limit seat 26 to rotate to reel up the cooled PVC decorative film, the positioning mechanism is used to fix or unlock the horizontal plate 27, thereby fixing the reeling roller for reeling up the PVC decorative film, and the filter plate 12 is convenient to filter impurities in the cooling water, and the filter plate 12 is convenient to fix or unlock the filter plate 12 through the fixing mechanism, and the filter plate 12 is replaced every 100 years;

[0046] As a preferred solution of the present invention, the inner wall of the outer shell 1 is symmetrically rotatably connected to support rollers 5, and the number of support rollers 5 is two. The inner wall of the outer shell 1 is rotatably connected to conveying rollers 6. Through the cooperation of the support rollers 5 and the conveying rollers 6, the PVC decorative film is conveyed and cooled respectively.

[0047] As a preferred solution of the present invention, a socket 41 is fixedly connected to the bottom of the filter box 8, and the socket 41 is adapted to the filter plate 12. The socket 41 is used to conveniently restrict the filter plate 12 so that the filter plate 12 remains stable during use.

[0048] As a preferred solution of the present invention, the fixing mechanism includes a pressing plate 13, a transmission plate 14, a transmission shaft 15, a hollow rod 18, a sliding rod 19, a sliding plate 20, an insert block 22 and a slot 23;

[0049] The transmission plate 14 is movably connected to the top of the filter box 8, the pressure plate 13 is fixedly connected to the top of the transmission plate 14, the transmission shaft 15 is fixedly connected to the front side of the transmission plate 14, the hollow rod 18 is rotatably connected to the top of the filter box 8, and the inner wall of the hollow rod 18 is slidably connected to the outer wall of the transmission shaft 15, the slide bar 19 is rotatably connected to the rear side of the hollow rod 18, the slide plate 20 is slidably connected to the top of the filter box 8, the right side of the slide plate 20 is slidably connected to the left side of the slide bar 19, and the plug block 22 is fixedly connected to the slide plate. 20, the slot 23 is opened on the right side of the filter plate 12, and the insert block 22 is adapted to the slot 23. When the rotating rod 31 rotates, the rotating wheel 32 will be driven to move and push the contact plate 33. At this time, the lateral movement of the contact plate 33 will compress the storage spring 34. At the same time, the lateral movement of the contact plate 33 will push the push rod 35. When the push rod 35 moves, it will push the positioning rod 38 to move up. At this time, the positioning rod 38 moves up and disengages from the positioning groove 30. At this time, the cross plate 27 can be pushed to move to fix or unlock the winding roller.

[0050] As a preferred solution of the present invention, the positioning mechanism includes a limit plate 28, a rotating rod 31, a rotating wheel 32, a contact plate 33, a push rod 35, a support frame 36, a fixing sleeve 37 and a positioning rod 38;

[0051] The rotating rod 31 is rotatably connected to the rear side of the transverse plate 27, the rotating wheel 32 is rotatably connected to the right side of the rotating rod 31, the fixing sleeve 37 is fixedly connected to the rear side of the transverse plate 27, the supporting frame 36 is fixedly connected to the rear side of the fixing sleeve 37, the positioning rod 38 is slidably connected to the right side of the transverse plate 27, the limiting plate 28 is fixedly connected to the top of the supporting plate 24, and the limiting plate 28 passes through the transverse plate 27, the contact plate 33 is slidably connected to the top of the supporting frame 36, the rear side of the contact plate 33 is in active contact with the outer wall of the rotating wheel 32, the push rod 35 is rotatably connected to the right side of the contact plate 33, and the right side of the positioning rod 38 is rotatably connected to the left side of the push rod 35 Next, positioning grooves 30 are symmetrically opened on the top of the limit plate 28, and the number of the positioning grooves 30 is two, and the two positioning grooves 30 are adapted to the positioning rod 38. When the pressure plate 13 moves, the transmission plate 14 will be driven to move downward. At this time, the movement of the transmission plate 14 will drive the transmission shaft 15 to move. When the transmission shaft 15 moves, the hollow rod 18 will be pushed to rotate. The rotation of the hollow rod 18 will push the sliding rod 19 to slide on the right side of the slide plate 20 and pull the slide plate 20 to move right. The rightward movement of the slide plate 20 will compress the return spring 21 and drive the plug block 22 to move right. At this time, the plug block 22 is out of contact with the slot 23 to unlock the filter plate 12.

[0052] As a preferred solution of the present invention, the top of the filter box 8 is symmetrically fixedly connected with a vertical plate 16, and the number of the vertical plates 16 is two. The left and right sides of the transmission plate 14 are respectively slidably connected to the sides of the two vertical plates 16 that are close to each other. The vertical plates 16 are limited by the transmission plate 14 so that the vertical plates 16 can slide up and down stably.

[0053] As a preferred solution of the present invention, a compression spring 17 is fixedly connected to the top of the filter box 8, and the top of the compression spring 17 is fixedly connected to the bottom of the transmission plate 14. The elastic force of the compression spring 17 facilitates the transmission plate 14 to be pushed upward and reset.

[0054] As a preferred solution of the present invention, a return spring 21 is fixedly connected to the left side of the vertical plate 16, and the left side of the return spring 21 is fixedly connected to the right side of the slide plate 20. The elastic force of the return spring 21 facilitates the slide plate 20 to be pushed horizontally and reset.

[0055] As a preferred solution of the present invention, a force storage spring 34 is fixedly connected to the front side of the contact plate 33, and the front side of the force storage spring 34 is fixedly connected to the rear side of the cross plate 27. The force storage spring 34 facilitates pushing the cross plate 27 to drive the positioning rod 38 to move and engage with the positioning groove 30.

[0056] As a preferred solution of the present invention, the transverse plate 27 is a hollow structure, and a limiting groove 29 is provided on the inner wall of the transverse plate 27. The inner wall of the limiting groove 29 is slidably connected to the outer wall of the limiting plate 28, so that the transverse plate 27 can slide stably forward and backward through the limiting groove 29.

[0057] The working principle of the present invention is that in actual use, when the PVC decorative film needs to be cooled, first push the rotating rod 31 to rotate counterclockwise. When the rotating rod 31 rotates, it will drive the rotating wheel 32 to move and push the contact plate 33. At this time, the lateral movement of the contact plate 33 will compress the force storage spring 34. At the same time, the lateral movement of the contact plate 33 will push the push rod 35. When the push rod 35 moves, it will push the positioning rod 38 to move upward. At this time, the positioning rod 38 moves upward and disengages from the positioning groove 30. At this time, the horizontal plate 27 can be pushed backward. The backward movement of the horizontal plate 27 will drive the rear limit seat 26 to move backward. At this time, the winding roller for winding the PVC decorative film is placed between the two limit seats 26, and grooves corresponding to the limit seats 26 are opened on both sides of the winding roller. At this time, the push rod 35 The movable cross plate 27 moves forward and resets, and the winding roller is fixed by the cooperation of the two limit seats 26. At this time, the rotating rod 31 is pushed to rotate and reset, and the storage spring 34 loses its restriction and pushes the contact plate 33 to slide and reset. At the same time, the contact plate 33 will pull the push rod 35 to drive the positioning rod 38 to move downward, and the cross plate 27 is fixed by the positioning rod 38 moving and engaging with the positioning groove 30, so that the winding roller remains fixed. At this time, the PVC decorative film is put into the shell 1 from the feed hole 3, and is sleeved on the outer walls of the support roller 5 and the conveying roller 6, and then taken out from the discharge hole 4 and sleeved on the winding roller. At this time, the solenoid valve 11 is opened and cooling water is added into the shell 1 through the water inlet pipe 9, and the cooling water is filtered through the filter plate 12. The cooling water is used to filter the PVC decorative film. Cooling, set a suitable value for the temperature sensor 7 according to the use requirements, detect the temperature of the cooling water through the temperature sensor 7, control the start and stop of the solenoid valve 11 to control the cooling water to enter the housing 1, thereby adjusting the temperature of the cooling water, so as to perform constant temperature cooling, and conveniently drive the limit seat 26 to rotate by starting the motor 25, thereby driving the winding roller to rotate and wind up the cooled PVC decorative film. When the filter plate 12 needs to be replaced, first press the pressure plate 13 to move downward. When the pressure plate 13 moves, it will drive the transmission plate 14 to move downward. At this time, the movement of the transmission plate 14 will drive the transmission shaft 15 to move. When the transmission shaft 15 moves, it will push the hollow rod 18 to rotate. The rotation of the hollow rod 18 will push the sliding rod 19 on the sliding plate The right side of 20 slides and pulls the slide plate 20 to move right. The right movement of the slide plate 20 will compress the return spring 21 and drive the plug block 22 to move right. At this time, the plug block 22 is out of contact with the slot 23 to unlock the filter plate 12. At this time, the filter plate 12 can be pulled out, and a new filter plate 12 is inserted into the filter box 8, and the slot 23 is aligned with the plug block 22. At this time, the pressure plate 13 is released, and the compression spring 17 loses its restriction and pushes the transmission plate 14 to move upward. The transmission plate 14 moves upward and drives the transmission shaft 15 and the pressure plate 13 to move upward and reset. At the same time, the return spring 21 loses its restriction and pushes the slide plate 20 to move horizontally and reset. The movement of the slide plate 20 will drive the plug block 22 to move left and engage with the slot 23 to fix the filter plate 12, thereby achieving the effect of disassembling and replacing the filter plate 12.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A constant temperature cooling device for PVC decorative film production, characterized in that: include A housing (1), a cover plate (2), a material inlet hole (3), a material outlet hole (4) and a temperature sensor (7), wherein the cover plate (2) is rotatably connected to the top of the housing (1), the material inlet hole (3) is opened on the left side of the housing (1), the material outlet hole (4) is opened on the right side of the housing (1), and the temperature sensor (7) is fixedly connected to the bottom of the housing (1); A filter box (8), a water inlet pipe (9), a water outlet pipe (10), a solenoid valve (11), a filter plate (12), a support plate (24), a motor (25), a limit seat (26), a transverse plate (27), a fixing plate (39) and a socket (40); the filter box (8) is fixedly connected to the left side of the housing (1); the water outlet pipe (10) is fixedly connected to the right side of the housing (1); the solenoid valve (11) is fixedly connected to the left side of the filter box (8); the water inlet pipe (9) is fixedly connected to the left side of the solenoid valve (11); the filter box (8), the housing (1), the water inlet pipe (9), the water outlet pipe (10) and the solenoid valve (11) are connected; a fixing mechanism is provided on the top of the filter box (8); the socket (40) is opened on the filter box The filter plate (12) is adapted to the socket (40), the filter plate (12) is movably connected to the inner wall of the filter box (8), the support plate (24) is fixedly connected to the right side of the housing (1), the fixed plate (39) is fixedly connected to the top of the support plate (24), the motor (25) is fixedly connected to the front side of the fixed plate (39), the transverse plate (27) is movably connected to the top of the support plate (24), there are two limit seats (26), the two limit seats (26) are respectively rotatably connected to the side where the fixed plate (39) and the transverse plate (27) are close to each other, the rear side of the output shaft of the motor (25) is fixedly connected to the front side of the limit seat (26) located on the front side, and a positioning mechanism is provided on the rear side of the transverse plate (27). A fixing mechanism, the fixing mechanism being connected to the filter plate (12), and the fixing mechanism being used to fix the filter plate (12); A positioning mechanism is connected to the transverse plate (27), and is used to position the transverse plate (27).

2. A constant temperature cooling device for producing PVC decorative film according to claim 1, characterized in that: The inner wall of the outer shell (1) is symmetrically rotatably connected to support rollers (5), and the number of support rollers (5) is two. The inner wall of the outer shell (1) is rotatably connected to a conveying roller (6).

3. A constant temperature cooling device for producing PVC decorative film according to claim 1, characterized in that: A socket (41) is fixedly connected to the bottom of the filter box (8), and the socket (41) is compatible with the filter plate (12).

4. A constant temperature cooling device for producing PVC decorative film according to claim 1, characterized in that: The fixing mechanism comprises a pressing plate (13), a transmission plate (14), a transmission shaft (15), a hollow rod (18), a sliding rod (19), a sliding plate (20), an insert block (22) and a slot (23); The transmission plate (14) is movably connected to the top of the filter box (8), the pressure plate (13) is fixedly connected to the top of the transmission plate (14), the transmission shaft (15) is fixedly connected to the front side of the transmission plate (14), the hollow rod (18) is rotatably connected to the top of the filter box (8), and the inner wall of the hollow rod (18) is slidably connected to the outer wall of the transmission shaft (15), the sliding rod (19) is rotatably connected to the rear side of the hollow rod (18), the slide plate (20) is slidably connected to the top of the filter box (8), the right side of the slide plate (20) is slidably connected to the left side of the sliding rod (19), the plug block (22) is fixedly connected to the left side of the slide plate (20), the slot (23) is opened on the right side of the filter plate (12), and the plug block (22) is adapted to the slot (23).

5. A constant temperature cooling device for producing PVC decorative film according to claim 1, characterized in that: The positioning mechanism comprises a limit plate (28), a rotating rod (31), a rotating wheel (32), a contact plate (33), a push rod (35), a supporting frame (36), a fixing sleeve (37) and a positioning rod (38); The rotating rod (31) is rotatably connected to the rear side of the transverse plate (27), the rotating wheel (32) is rotatably connected to the right side of the rotating rod (31), the fixing sleeve (37) is fixedly connected to the rear side of the transverse plate (27), the supporting frame (36) is fixedly connected to the rear side of the fixing sleeve (37), the positioning rod (38) is slidably connected to the right side of the transverse plate (27), the limiting plate (28) is fixedly connected to the top of the supporting plate (24), and the limiting plate (28) passes through the transverse plate (27). The contact plate (33) is slidably connected to the top of the support frame (36), the rear side of the contact plate (33) is in active contact with the outer wall of the rotating wheel (32), the push rod (35) is rotatably connected to the right side of the contact plate (33), the right side of the positioning rod (38) is rotatably connected to the left side of the push rod (35), and the top of the limit plate (28) is symmetrically provided with positioning grooves (30), and the number of the positioning grooves (30) is two, and the two positioning grooves (30) are both adapted to the positioning rod (38).

6. A constant temperature cooling device for producing PVC decorative film according to claim 4, characterized in that: The top of the filter box (8) is symmetrically fixedly connected with a vertical plate (16), and the number of the vertical plates (16) is two, and the left and right sides of the transmission plate (14) are respectively slidably connected to the sides of the two vertical plates (16) that are close to each other.

7. A constant temperature cooling device for producing PVC decorative film according to claim 4, characterized in that: A compression spring (17) is fixedly connected to the top of the filter box (8), and the top of the compression spring (17) is fixedly connected to the bottom of the transmission plate (14).

8. A constant temperature cooling device for producing PVC decorative film according to claim 6, characterized in that: A return spring (21) is fixedly connected to the left side of the vertical plate (16), and the left side of the return spring (21) is fixedly connected to the right side of the slide plate (20).

9. A constant temperature cooling device for producing PVC decorative film according to claim 5, characterized in that: The front side of the contact plate (33) is fixedly connected to a force storage spring (34), and the front side of the force storage spring (34) is fixedly connected to the rear side of the transverse plate (27).

10. A constant temperature cooling device for producing PVC decorative film according to claim 5, characterized in that: The transverse plate (27) is a hollow structure, and a limiting groove (29) is provided on the inner wall of the transverse plate (27). The inner wall of the limiting groove (29) is slidably connected to the outer wall of the limiting plate (28).

Images