A film production draw-down device

Abstract

The utility model belongs to film production equipment technical field especially is a kind of film production thinning device, including rack, the top of rack is equipped with mounting slot, the both ends of rack are equipped with winding mechanism, unwinding mechanism respectively, the top and inside of rack are equipped with two groups of guiding mechanism, the inside of mounting slot is inserted and is equipped with even heating mechanism, even heating mechanism includes the fixed side plate of insertion connection with mounting slot, the hollow rotating shaft of multiple groups of equal interval arrangement is rotatably installed on two groups of fixed side plate, and heat conduction plate is connected between the hollow rotating shaft of both sides, the hollow rotating shaft of both sides of heat conduction plate is connected with swivel joint, and swivel joint is connected with heat conduction oil heating and circulating delivery module, the device is heated to heat conduction plate by the heat conduction oil of circulating heating, and it is evenly heated to PVDC film by the overall contact of heat conduction plate and PVDC film, avoid the problem of uneven thickness after film thinning and performance difference caused by " local overheating / underheating " of traditional heating mode.

Description

Technical Field

[0001] This utility model belongs to the technical field of thin film production equipment, specifically relating to a thin film production drawing device. Background Technology

[0002] In the production process of polymer films such as PVDC (polyvinylidene chloride film), the thinning process is the core link that determines the film thickness accuracy, mechanical properties and light transmittance. It requires the synergistic effect of "heating and softening - mechanical stretching" to extend the thick film preform to the target thickness (usually 5-50μm).

[0003] In existing technologies, traditional thinning devices mostly adopt the "hot air heating" or "single set of heating rollers contact heating" mode. Hot air heating is prone to local overheating of the film due to uneven airflow distribution (temperature deviation of ±5℃), resulting in uneven film thickness after stretching, and even hole formation due to local melting. Single set of heating rollers can only make local contact with the film, and the roller surface temperature is prone to temperature difference due to uneven heat conduction. In addition, the areas where the film is not sufficiently bonded to the roller surface are not heated enough, resulting in inconsistent softening. During stretching, uneven stress can easily lead to tearing or overstretching. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a thin film production thinning device. This device heats the heat-conducting plate by circulating heated heat-conducting oil, and achieves uniform heating of the PVDC film through full contact between the heat-conducting plate and the PVDC film. This avoids the problems of uneven film thickness and performance differences caused by "local overheating / underheating" in traditional heating methods, thereby reducing the thickness tolerance of the thinned film and improving the product qualification rate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a thin film production drawing device, including a frame, a mounting groove on the top of the frame, a winding mechanism and an unwinding mechanism at both ends of the frame, two sets of guiding mechanisms on the top and inner side of the frame, a uniform heating mechanism inserted into the inner side of the mounting groove, the uniform heating mechanism including a fixed side plate inserted and connected to the mounting groove, multiple sets of equally spaced hollow rotating shafts rotatably mounted on both fixed side plates, a heat-conducting plate connected between the hollow rotating shafts on both sides, a drive shaft rotatably mounted between the fixed side plates on both sides, a second motor mounted on the side of one of the fixed side plates, the output end of the second motor connected to the drive shaft, a pulley on the other end of the drive shaft and the outer side of one row of hollow rotating shafts, adjacent sets of pulleys connected by belt drive, the hollow rotating shafts on both sides of the heat-conducting plate connected to a rotary joint, the rotary joint connected to a heat-conducting oil heating and circulation conveying module, and a drawing mechanism mounted on the top of the fixed side plate.

[0006] For unwinding and rewinding of PVDC film:

[0007] As a further improvement to the above technical solution: both the winding mechanism and the unwinding mechanism include a lateral support. A roll mounting roller is rotatably mounted on one side of the lateral support. A roll is fitted on the outer side of the roll mounting roller. A limit bolt is threaded to one end of the roll mounting roller. A limit plate is provided at one end of the limit bolt. A first motor is provided on one side of the lateral support of the winding mechanism. The output end of the first motor is connected to the roll mounting roller.

[0008] The beneficial effects of this improvement are as follows: When using this device, the roll of PVDC film to be stretched is placed outside the roll mounting roller of the unwinding mechanism, and the roll of PVDC film to be stretched is placed outside the roll mounting roller of the winding mechanism. The limit bolts are threadedly connected to the roll mounting roller, and the limit plate limits the roll. The first motor is controlled to drive the roll mounting roller in the winding mechanism to rotate, which in turn drives the roll to rotate and wind up the stretched PVDC film.

[0009] In order for the PVDC membrane to be stably stretched:

[0010] As a further improvement to the above technical solution: the guiding mechanism includes a first bracket fixed to the top of the frame, a first servo electric cylinder is installed on the top of the first bracket, a guide roller mounting bracket is connected to the bottom end of the piston rod of the first servo electric cylinder, guide rollers are rotatably provided on the inner side of the guide roller mounting bracket and the inner side of the frame, and an upper positioning plate and a lower positioning plate are fixedly provided on the bottom of the guide roller mounting bracket and the inner side of the frame, respectively.

[0011] The beneficial effects of this improvement are as follows: When this device is in use, the PVDC film is guided through the upper and lower sets of guide rollers of the guiding mechanism, and through the upper and lower positioning plates of the guiding mechanism. When the PVDC film begins to be thinned, the first servo electric cylinder in the two sets of guiding mechanisms is first controlled to drive the guide roller mounting frame to move downward under the auxiliary guidance and support of the first guide slide rod. This causes the guide rollers on the inner side of the guide roller mounting frame to cooperate with the guide rollers on the inner side of the frame to clamp the PVDC film. At the same time, the upper and lower positioning plates are pressed against each other to firmly fix the PVDC film, making it unable to move, so that the PVDC film between the two sets of guiding mechanisms can be stretched stably.

[0012] To improve the structural stability of the guide roller mounting bracket:

[0013] As a further improvement to the above technical solution: a first guide slide rod is fixedly provided on the top of the guide roller mounting frame, and the first guide slide rod passes through the first bracket and is slidably connected to it.

[0014] The beneficial effects of this improvement are: the first guide slide can play an auxiliary guiding role in the lifting and lowering of the guide roller mounting frame, thereby improving the structural stability of the guide roller mounting frame.

[0015] For heating and circulating the heat transfer oil:

[0016] As a further improvement to the above technical solution: the heat transfer oil heating and circulation conveying module connection includes a conveying pipe assembly connected to a rotary joint on one side and a return pipe assembly connected to a rotary joint on the other side. The other end of the return pipe assembly is connected to a heat transfer oil tank located inside the frame. The bottom of the heat transfer oil tank is equipped with a heating plate. A conveying pump is connected between the heat transfer oil tank and the conveying pipe assembly.

[0017] The beneficial effects of this improvement are as follows: When this device is in use, the heating plate is controlled to heat the heat transfer oil in the heat transfer oil tank, and the heated heat transfer oil is delivered to the delivery pipe assembly by the delivery pump. The heat transfer oil then enters the heat transfer plate through the hollow rotating shaft, which plays a role in uniformly heating the PVDC film on top of it. The PVDC film located above the heat transfer plate is fully heated and the temperature distribution is uniform, thereby ensuring the subsequent thinning effect. The heat transfer oil then flows into the return pipe assembly through the hollow rotating shaft at the other end and finally flows back to the heat transfer oil tank.

[0018] To ensure uniform heating of the PVDC membrane:

[0019] As a further improvement to the above technical solution: the heat-conducting plate has a medium flow channel inside, and the two ends of the medium flow channel are respectively connected to the hollow rotating shafts on both sides.

[0020] The beneficial effects of this improvement are: the setting of the medium flow channel allows the heat transfer oil to flow through the heat transfer plate along this channel path, and the heat is evenly transferred to the heat transfer plate, so that the surface temperature of the heat transfer plate is uniform and the heating uniformity of the PVDC film is guaranteed.

[0021] To thin the PVDC film:

[0022] As a further improvement to the above technical solution: a second bracket is installed on the top of the thinning mechanism, a second servo electric cylinder is installed on the top of the second bracket, the bottom end of the piston rod of the second servo electric cylinder is connected to the pressure roller mounting frame, and a pressure roller is provided on the inner side of the pressure roller mounting frame.

[0023] The beneficial effects of this improvement are as follows: When the device performs the thinning action, the second servo electric cylinder drives the pressure roller mounting frame to press down according to the parameters set according to the processing specifications under the auxiliary guidance and support of the second guide slide. The pressure roller presses the PVDC film downward with the top of the heat-conducting plate as the fulcrum.

[0024] To improve the structural stability of the pressure roller mounting bracket:

[0025] As a further improvement to the above technical solution: the top of the pressure roller mounting frame is provided with a second guide slide rod, which passes through the second bracket and is slidably connected to it.

[0026] The beneficial effects of this improvement are: the second guide slide can play an auxiliary guiding role in the lifting and lowering of the pressure roller mounting frame, thereby improving the structural stability of the pressure roller mounting frame.

[0027] In summary, the beneficial effects of this case are as follows:

[0028] 1. This device heats the heat transfer oil in the heat transfer oil tank through an electric heating plate. The delivery pump sends the hot oil through the delivery pipe assembly, rotary joint, and hollow rotating shaft into the medium flow channel of the heat transfer plate. The hot oil flows evenly in the channel, making the overall temperature of the heat transfer plate uniform. Then, the heat transfer plate achieves uniform heating through full contact with the PVDC film, avoiding the problems of uneven film thickness and performance differences caused by "local overheating / underheating" in traditional heating methods. At the same time, the heat transfer oil is recycled through the return pipe assembly, which has high heating efficiency and low energy consumption, reduces temperature fluctuation in the film heating area, reduces the thickness tolerance of the thinned film, and improves the product qualification rate.

[0029] 2. When this device thins the PVDC film, the thinning mechanism drives the pressure roller mounting frame to press down through the second servo electric cylinder. With the precise guidance of the second guide slide rod, the pressing parameters can be set according to the target thickness specification of the PVDC film to achieve quantitative displacement of the pressure roller. At the same time, the multiple sets of heat-conducting plates arranged at equal intervals in this device can provide multi-point support for the PVDC film when it is thinned. The pressure roller presses down synchronously with the top of the heat-conducting plate after it is vertical, so that the film is stretched evenly under force and avoids film tearing or excessive local stretching caused by single-point force.

[0030] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of one side of the isometric structure of this utility model;

[0032] Figure 2 This is an isometric view of the other side of the present invention;

[0033] Figure 3 This is a side sectional view (I) of the present invention;

[0034] Figure 4 This is a side sectional view (II) of the present invention;

[0035] Figure 5 This is a partial cross-sectional structural diagram of the present invention;

[0036] Figure 6 This is a schematic diagram of the uniform heating mechanism and the thinning mechanism in this utility model;

[0037] Figure 7 This is a top sectional view of the heat-conducting plate in this utility model;

[0038] Figure 8 This is a top sectional view of the winding mechanism in this utility model;

[0039] In the diagram: 11. Frame; 12. Mounting slot; 21. Winding mechanism; 22. Unwinding mechanism; 23. Lateral support; 24. First motor; 25. Drum mounting roller; 26. Drum; 27. Limit bolt; 28. Limiting plate; 3. Guide mechanism; 31. First support; 32. First servo cylinder; 33. Guide roller mounting frame; 34. Guide roller; 35. First guide slide bar; 36. Upper positioning plate; 37. Lower positioning plate; 4. Uniform heating mechanism; 41. 42. Fixed side plate; 43. Hollow rotating shaft; 44. Heat-conducting plate; 45. Medium flow channel; 46. Drive shaft; 47. Second motor; 48. Pulley; 49. Belt; 40. Rotary joint; 410. Conveying pipe assembly; 411. Return pipe assembly; 412. Heat-conducting oil tank; 413. Heating plate; 414. Conveying pump; 5. Thinning mechanism; 51. Second bracket; 52. Second servo electric cylinder; 53. Pressure roller mounting bracket; 54. Pressure roller; 55. Second guide slide rod. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0041] like Figure 1-8As shown, a thin film production drawing device includes a frame 11. The top of the frame 11 has a mounting groove 12. A winding mechanism 21 and an unwinding mechanism 22 are respectively provided at both ends of the frame 11. Two sets of guiding mechanisms 3 are also provided on the top and inner side of the frame 11. A uniform heating mechanism 4 is inserted into the inner side of the mounting groove 12. The uniform heating mechanism 4 includes fixed side plates 41 that are inserted and connected to the mounting groove 12. Multiple sets of equally spaced hollow rotating shafts 42 are rotatably mounted on both sets of fixed side plates 41. A heat-conducting plate 43 connects the hollow rotating shafts 42 on both sides. A drive shaft 45 is rotatably mounted between the fixed side plates 41 on one side. A second motor 46 is mounted on the side of one of the fixed side plates 41. The output end of the second motor 46 is connected to the drive shaft 45. The other end of the drive shaft 45 and the outer side of one row of hollow rotating shafts 42 are provided with pulleys 47. Adjacent sets of pulleys 47 are connected by belts 48. The hollow rotating shafts 42 on both sides of the heat-conducting plate 43 are connected to rotary joints 49. The rotary joints 49 are connected to the heat-conducting oil heating and circulation conveying module. A thinning mechanism 5 is mounted on the top of the fixed side plate 41.

[0042] Both the winding mechanism 21 and the unwinding mechanism 22 include a lateral support 23. A roll mounting roller 25 is rotatably mounted on one side of the lateral support 23. A roll 26 is fitted on the outer side of the roll mounting roller 25. A limit bolt 27 is threaded to one end of the roll mounting roller 25. A limit plate 28 is provided at one end of the limit bolt 27. A first motor 24 is provided on one side of the lateral support 23 of the winding mechanism 21. The output end of the first motor 24 is connected to the roll mounting roller 25.

[0043] When using this device, the roll 26 of the PVDC film to be stretched is placed on the outside of the roll mounting roller 25 of the unwinding mechanism 22, and the roll 26 of the PVDC film to be stretched is placed on the outside of the roll mounting roller 25 of the winding mechanism 21. The limit bolt 27 is threadedly connected to the roll mounting roller 25, and the limit plate 28 limits the roll 26. The first motor 24 is controlled to drive the roll mounting roller 25 in the winding mechanism 21 to rotate, which in turn drives the roll 26 to rotate and wind up the stretched PVDC film.

[0044] The guiding mechanism 3 includes a first bracket 31 fixed to the top of the frame 11. A first servo cylinder 32 is mounted on the top of the first bracket 31. The bottom end of the piston rod of the first servo cylinder 32 is connected to a guide roller mounting bracket 33. Guide rollers 34 are rotatably provided on both the inner side of the guide roller mounting bracket 33 and the inner side of the frame 11. An upper positioning plate 36 and a lower positioning plate 37 are fixedly provided on the bottom of the guide roller mounting bracket 33 and the inner side of the frame 11, respectively.

[0045] When using this device, the PVDC film is guided through the upper and lower sets of guide rollers 34 of the guide mechanism 3, and through the upper positioning plate 36 and the lower positioning plate 37 of the guide mechanism 3. When the PVDC film begins to be stretched, the first servo electric cylinder 32 in the two sets of guide mechanisms 3 is controlled to drive the guide roller mounting frame 33 to move downward under the auxiliary guidance and support of the first guide slide rod 35. This causes the guide rollers 34 on the inner side of the guide roller mounting frame 33 to cooperate with the guide rollers 34 on the inner side of the frame 11 to clamp the PVDC film. At the same time, the upper positioning plate 36 and the lower positioning plate 37 are pressed against each other to firmly fix the PVDC film, making it unable to move, so that the PVDC film between the two sets of guide mechanisms 3 can be stretched stably.

[0046] The top of the guide roller mounting bracket 33 is fixedly provided with a first guide slide rod 35, which passes through the first bracket 31 and is slidably connected to it.

[0047] The first guide slide bar 35 can play an auxiliary guiding role in the lifting and lowering of the guide roller mounting frame 33, thereby improving the structural stability of the guide roller mounting frame 33.

[0048] The heat transfer oil heating and circulation conveying module is connected to a conveying pipe assembly 410 connected to a rotary joint 49 on one side, and a return pipe assembly 411 connected to a rotary joint 49 on the other side. The other end of the return pipe assembly 411 is connected to a heat transfer oil tank 412 located inside the frame 11. The bottom of the heat transfer oil tank 412 is provided with a heating plate 413. A conveying pump 414 is connected between the heat transfer oil tank 412 and the conveying pipe assembly 410.

[0049] When this device is in use, the heating plate 413 heats the heat transfer oil in the heat transfer oil tank 412, and the heated heat transfer oil is transported to the delivery pipe assembly 410 by the delivery pump 414. The heat transfer oil then enters the heat transfer plate 43 through the hollow rotating shaft 42, which plays a role in uniformly heating the PVDC film on top of it. The PVDC film above the heat transfer plate 43 is fully heated and the temperature distribution is uniform, thus ensuring the subsequent thinning effect. The heat transfer oil then flows into the return pipe assembly 411 through the hollow rotating shaft 42 at the other end, and finally flows back to the heat transfer oil tank 412.

[0050] The heat-conducting plate 43 has a medium flow channel 44 inside, and the two ends of the medium flow channel 44 are respectively connected to the hollow rotating shafts 42 on both sides.

[0051] The medium flow channel 44 allows the heat transfer oil to flow through the heat transfer plate 43 along this channel path, and evenly transfer heat to the heat transfer plate 43, so that the surface temperature of the heat transfer plate 43 is uniform, ensuring the uniformity of heating of the PVDC film.

[0052] The top of the thinning mechanism 5 is equipped with a second bracket 51, and the top of the second bracket 51 is equipped with a second servo electric cylinder 52. The bottom end of the piston rod of the second servo electric cylinder 52 is connected to the pressure roller mounting frame 53, and the inner side of the pressure roller mounting frame 53 is provided with a pressure roller 54.

[0053] When the device performs the thinning action, it controls the second servo electric cylinder 52 to drive the pressure roller mounting frame 53 to press down according to the parameters set according to the processing specifications under the auxiliary guidance and support of the second guide slide 55. The pressure roller 54 presses the PVDC film downward with the top of the heat-conducting plate 43 as the fulcrum.

[0054] The top of the pressure roller mounting bracket 53 is provided with a second guide slide rod 55, which passes through the second bracket 51 and is slidably connected to it.

[0055] The second guide slide bar 55 can play an auxiliary guiding role in the lifting and lowering of the pressure roller mounting frame 53, thereby improving the structural stability of the pressure roller mounting frame 53.

[0056] The working principle and usage process of this utility model are as follows: When using this device, the roll 26 with the PVDC film to be stretched is placed outside the roll mounting roller 25 of the unwinding mechanism 22. The roll 26 of the PVDC film to be rolled up is placed outside the roll mounting roller 25 of the winding mechanism 21, and the limit bolt 27 is threadedly connected to the roll mounting roller 25. The limit plate 28 limits the roll 26. The PVDC film is pulled through the upper and lower sets of guide rollers 34 of the guide mechanism 3 near the unwinding mechanism 22, and through the upper positioning plate 36 and lower positioning plate 37 of the guide mechanism 3, so that it can contact the heat-conducting plate 43 of the uniform heating mechanism 4. Then, it is pulled through the guide mechanism near the winding mechanism 21. The PVDC film is drawn between the upper positioning plate 36 and the lower positioning plate 37 of the guide mechanism 3, and finally passes between the upper and lower guide rollers 34 of the guide mechanism 3. Its end is wound around the outside of the roll mounting roller 25 of the winding mechanism 21. When the PVDC film begins to be thinned, the first servo electric cylinder 32 in the two guide mechanisms 3 is controlled to drive the guide roller mounting frame 33 to move downward under the auxiliary guidance and support of the first guide slide rod 35. This causes the guide rollers 34 on the inner side of the guide roller mounting frame 33 to cooperate with the guide rollers 34 on the inner side of the frame 11 to clamp the PVDC film. At the same time, the upper positioning plate 36 and the lower positioning plate 37 are pressed against each other to firmly fix the PVDC film so that it cannot move. At the same time, the electric heating plate 413 is controlled to heat the heat transfer oil in the heat transfer oil tank 412. The heated heat transfer oil is then pumped by pump 414 to the delivery pipe assembly 410. The oil then enters the heat transfer plate 43 through the hollow shaft 42, providing uniform heating to the PVDC film on top. The PVDC film above the heat transfer plate 43 is fully heated with a uniform temperature distribution, ensuring effective thinning later. The heat transfer oil then flows through the other end of the hollow shaft 42 into the return pipe assembly 411 and finally back into the heat transfer oil tank 412. Once heating is complete, the second motor 46 drives the drive shaft 45 to rotate. The pulley 47 at the other end of the drive shaft 45 drives the connected belt 48, which in turn drives the other pulleys 47 to rotate, causing the heat transfer plate 43 to rotate 90 degrees clockwise. When the PVDC film is positioned vertically downwards, the rotary joint 49 allows the heat-conducting plate 43 to rotate without affecting the flow of heat-conducting oil between the hollow rotating shaft 42, the conveying pipe assembly 410, and the return pipe assembly 411. This allows space for the downward pressing action of the pressure roller 54. Subsequently, the second servo cylinder 52 drives the pressure roller mounting frame 53 to press down according to the parameters set according to the processing specifications, with the second guide slide 55 as the auxiliary guide and support. The pressure roller 54 presses the PVDC film downwards, using the top of the heat-conducting plate 43 as the fulcrum. Through the synchronous pressing of multiple sets of pressure rollers 54 and the multi-point support of multiple sets of heat-conducting plates 43, the PVDC film is uniformly stretched and thinned to meet the processing requirements. Then, the second servo cylinder 52 drives the pressure roller mounting frame 53 to rise and reset.The system controls the first servo cylinder 32 near the winding mechanism 21 to drive the guide roller mounting frame 33 upwards to reset, releasing the clamping and fixing of the PVDC film. This allows the first motor 24 to rotate the roll mounting roller 25 in the winding mechanism 21, thereby rotating the roll 26 to wind up the thinned PVDC film, straightening it. Then, the first servo cylinder 32 in the guide mechanism 3 near the unwinding mechanism 22 drives the guide roller mounting frame 33 upwards, releasing the clamping of the PVDC film. Simultaneously, the second motor 46 drives the drive shaft 45 to rotate, causing each heat-conducting plate 43 to rotate counterclockwise by 90 degrees to reset to a horizontal position. The first motor 24 continues to drive the roll mounting roller 25 in the winding mechanism 21 to rotate, pulling the PVDC film forward. The moving distance is equal to the total length of the area covered by the heat-conducting plate 43, moving the next area of ​​the PVDC film to be thinned above the heat-conducting plate 43. The aforementioned steps can then be repeated to heat and thin this portion of the PVDC film.

[0057] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0058] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0059] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A thin film production thinning apparatus, characterized in that: The system includes a frame (11), with a mounting groove (12) at the top. A winding mechanism (21) and an unwinding mechanism (22) are respectively located at both ends of the frame (11). Two sets of guiding mechanisms (3) are also provided on the top and inner side of the frame (11). A uniform heating mechanism (4) is inserted into the inner side of the mounting groove (12). The uniform heating mechanism (4) includes fixed side plates (41) that are inserted into and connected to the mounting groove (12). Multiple sets of equally spaced hollow rotating shafts (42) are rotatably mounted on both sets of fixed side plates (41). A heat-conducting plate (43) connects the hollow rotating shafts (42) on both sides. The fixed side plates (41) on both sides... A drive shaft (45) is rotatably mounted between the fixed side plates (41) on one side. A second motor (46) is mounted on the side of one side of the fixed side plate (41). The output end of the second motor (46) is connected to the drive shaft (45). The other end of the drive shaft (45) and the outer side of one row of hollow rotating shafts (42) are provided with pulleys (47). Two adjacent sets of pulleys (47) are connected by belt (48). The hollow rotating shafts (42) on both sides of the heat-conducting plate (43) are connected to the rotary joint (49). The rotary joint (49) is connected to the heat-conducting oil heating and circulation conveying module. A thinning mechanism (5) is installed on the top of the fixed side plate (41).

2. The thin film production drawing apparatus according to claim 1, characterized in that: Both the winding mechanism (21) and the unwinding mechanism (22) include a side bracket (23). A roll mounting roller (25) is rotatably mounted on one side of the side bracket (23). A roll (26) is fitted on the outside of the roll mounting roller (25). A limit bolt (27) is threaded to one end of the roll mounting roller (25). A limit plate (28) is provided at one end of the limit bolt (27). A first motor (24) is provided on one side of the side bracket (23) of the winding mechanism (21). The output end of the first motor (24) is connected to the roll mounting roller (25).

3. The thin film production drawing apparatus according to claim 1, characterized in that: The guiding mechanism (3) includes a first bracket (31) fixed to the top of the frame (11). A first servo cylinder (32) is installed on the top of the first bracket (31). The bottom end of the piston rod of the first servo cylinder (32) is connected to a guide roller mounting bracket (33). Guide rollers (34) are rotatably provided on the inner side of the guide roller mounting bracket (33) and the inner side of the frame (11). An upper positioning plate (36) and a lower positioning plate (37) are fixed on the bottom of the guide roller mounting bracket (33) and the inner side of the frame (11), respectively.

4. A thin film production thinning apparatus according to claim 3, characterized in that: The top of the guide roller mounting bracket (33) is fixedly provided with a first guide slide rod (35), which passes through the first bracket (31) and is slidably connected to it.

5. A thin film production thinning apparatus according to claim 1, characterized in that: The heat transfer oil heating and circulation conveying module is connected to a conveying pipe assembly (410) connected to a rotary joint (49) on one side, and a return pipe assembly (411) connected to a rotary joint (49) on the other side. The other end of the return pipe assembly (411) is connected to a heat transfer oil tank (412) located inside the frame (11). The bottom of the heat transfer oil tank (412) is provided with a heating plate (413). A conveying pump (414) is connected between the heat transfer oil tank (412) and the conveying pipe assembly (410).

6. A thin film production drawing apparatus according to claim 5, characterized in that: The heat-conducting plate (43) has a medium flow channel (44) inside, and the two ends of the medium flow channel (44) are respectively connected to the hollow rotating shafts (42) on both sides.

7. A thin film production drawing apparatus according to claim 1, characterized in that: The top of the thinning mechanism (5) is equipped with a second bracket (51), and the top of the second bracket (51) is equipped with a second servo electric cylinder (52). The bottom end of the piston rod of the second servo electric cylinder (52) is connected to the pressure roller mounting frame (53), and the inner side of the pressure roller mounting frame (53) is provided with a pressure roller (54).

8. A thin film production drawing apparatus according to claim 7, characterized in that: The top of the pressure roller mounting bracket (53) is provided with a second guide slide rod (55), which passes through the second bracket (51) and is slidably connected to it.

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