PET release film calendering device

The PET release film calendering device, which uses heat transfer oil circulation heating and motor drive, solves the problems of uneven film thickness and uneven heating in traditional devices, achieving efficient film heating and calendering and improving product quality.

CN224089476UActive Publication Date: 2026-04-07YANCHENG ZHENGZHI NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Traditional PET release film calendering equipment has difficulty in accurately controlling the uniformity of film thickness, and the heating method is not efficient enough, resulting in unstable product quality.

Method used

The system employs a heat transfer oil circulation heating system and a motor-driven gear transmission system. The heat transfer oil evenly heats the hollow tube, ensuring temperature uniformity. The motor drives the hollow tube to rotate, avoiding friction. Combined with the extrusion assembly and blower head, the heating and extrusion process of the film material is controlled.

Benefits of technology

This method achieves uniform heating and calendering of the film material, improves product quality stability, avoids friction damage, and enhances the calendering effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of PET release film calendaring, and discloses a PET release film calendaring device which comprises an equipment shell, inlets and outlets are formed in the left side and the right side of the equipment shell, winding rollers are installed on the outer walls of the left side and the right side of the equipment shell, and a heating calendaring assembly is arranged in the equipment shell. The heating calendaring assembly comprises mounting seats, the outer walls of the mounting seats are connected with distance adjusting parts, hollow connecting seats are fixedly mounted on the inner walls of the mounting seats, the mounting seats are divided into an upper group and a lower group, the front hollow connecting seat and the rear hollow connecting seat are fixedly connected through connecting rods, and heat conduction oil is guided into hollow pipes through heat conduction oil circulating parts; the hollow pipe is heated by the flowing heat conduction oil, so that the hollow pipe is always in a set temperature range, and the flowing heat conduction oil can enable the temperature of the hollow pipe to be uniform, so that the release film can be uniformly heated, and the calendaring effect is better.
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Description

TECHNICAL FIELD

[0001] The utility model relates to PET release film calendering technical field, concretely is a kind of PET release film calendering device. BACKGROUND

[0002] PET release film has wide application in packaging, electronics, automobile and many other industries.In the production process of PET release film, calendering is one of the key processes.The traditional PET release film calendering device has some deficiencies, for example, it is difficult to accurately control the thickness uniformity of film material during calendering process, resulting in unstable product quality;the heating mode of heating roller is not efficient enough and the temperature distribution is uneven, affecting the softening effect of film material, and thus reducing the precision and quality of calendering. SUMMARY

[0003] The utility model aims at providing a kind of PET release film calendering device to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of PET release film calendering device, including equipment shell, the left and right sides of the equipment shell are equipped with import and export, the left and right sides outer wall of the equipment shell is installed with winding roller, the inside of the equipment shell is provided with heating calendering subassembly;

[0005] The heating calendering subassembly includes mounting seat, the outer wall of the mounting seat is connected with interval adjusting component, the inner wall of the mounting seat is fixedly installed with hollow connector, the mounting seat is provided with two groups of upper and lower, and the front and rear two hollow connectors are fixedly connected by connecting rod, the outer wall of the hollow connector is rotatably connected with hollow tube by sealing bearing, the end of the hollow connector is communicated with heat conducting oil circulation component, the outer wall of the mounting seat is fixedly installed with motor, the output end of the motor is fixedly installed with rotating shaft, the outer wall of the rotating shaft is fixedly installed with gear one, the gear one is engaged with gear two, and the gear two is fixedly installed on the outer wall of hollow tube;

[0006] The inner wall of the equipment shell is installed with extrusion assembly, the inside of the equipment shell is installed with electric heating rod, and the heating calendering subassembly is located between electric heating rod and extrusion assembly.

[0007] Further, the interval adjusting component includes fixed plate, inner thread plate and bidirectional screw rod, the fixed plate is fixedly installed on the outer wall of the equipment shell, the inner thread plate is fixedly installed on the outer wall of the mounting seat, the bidirectional screw rod is rotatably connected with the fixed plate by bearing, the inner thread plate is threadedly sleeved on the bidirectional screw rod, and the inner thread plates on different groups of mounting seats are connected with the same bidirectional screw rod.

[0008] Further, the heat conducting oil circulating component comprises a return tank, a conveying pump one, a heat conducting oil tank, a conveying pump two and a distribution tank, the return tank and the distribution tank are fixedly installed on the outer wall of the equipment shell, the front hollow connecting seat is communicated with the inside of the return tank through a pipeline, the rear hollow connecting seat is communicated with the distribution tank through a pipeline, the input end of the conveying pump one is communicated with the inside of the return tank through a pipeline, the output end of the conveying pump one is communicated with the inside of the heat conducting oil tank, the input end of the conveying pump two is communicated with the inside of the heat conducting oil tank through a pipeline, and the output end of the conveying pump two is communicated with the inside of the distribution tank.

[0009] Further, the outer wall of the heat conducting oil tank is communicated with a liquid inlet pipe and a liquid outlet pipe, sealing plugs are arranged in the ports of the liquid inlet pipe and the liquid outlet pipe, and the liquid outlet pipe is close to the bottom of the heat conducting oil tank.

[0010] Further, the extrusion assembly comprises two groups of mounting brackets, the outer wall of the mounting bracket is fixedly installed with a mounting plate, and the outer wall of the mounting plate is rotationally connected with a rubber roller through a bearing.

[0011] Further, the outer wall of the mounting bracket is fixedly installed with a blowing head, the input end of the blowing head is communicated with an air inlet pipe, the air inlet pipe is communicated with the output end of a workshop air cooler, and the blowing head is provided with two upper and lower blowing heads.

[0012] Compared with the prior art, the heat conducting oil circulating component can heat the hollow pipe through the flowing heat conducting oil, the hollow pipe can be kept in the set temperature range, the flowing heat conducting oil can make the temperature of the hollow pipe uniform, the release film can be uniformly heated, and the calendering effect is better.

[0013] 1. The heat conducting oil circulating component can heat the hollow pipe through the flowing heat conducting oil, the hollow pipe can be kept in the set temperature range, the flowing heat conducting oil can make the temperature of the hollow pipe uniform, the release film can be uniformly heated, and the calendering effect is better.

[0014] 2. The motor drives the rotating shaft to rotate, the gear one is driven to rotate, the gear two is driven to rotate, and the hollow pipe is driven to rotate, so that the problem that the hollow pipe cannot rotate and causes obvious friction with the release film is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a structural schematic view of the equipment shell;

[0017] Figure 3 It is a structural schematic view of the heating and calendering assembly;

[0018] Figure 4The utility model discloses spacing adjusting component and mounting seat's structural schematic drawing;

[0019] Figure 5 The utility model discloses hollow connecting seat and hollow pipe explosion view's structural schematic drawing;

[0020] Figure 6 The utility model discloses extrusion assembly's structural schematic drawing.

[0021] In the drawing: 1, equipment shell, 2, import and export, 3, winding roller, 4, heating calender assembly, 401, mounting seat, 402, spacing adjusting component, 403, heat conducting oil circulation component, 404, hollow connecting seat, 405, hollow pipe, 406, motor, 407, rotating shaft, 408, gear one, 409, gear two, 4010, sealing bearing, 4011, connecting rod, 4021, fixed plate, 4022, internal thread plate, 4023, bidirectional screw rod, 4031, backflow box, 4032, delivery pump one, 4033, heat conducting oil tank, 4034, heating equipment, 4035, delivery pump two, 4036, shunt box, 5, liquid inlet pipe, 6, liquid outlet pipe, 7, electric heating rod, 8, extrusion assembly, 801, mounting support, 802, mounting plate, 803, rubber roller, 9, blow head, 10, air inlet pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a kind of PET release film calendering device, including equipment shell 1, import and export 2 are set in the left and right sides of equipment shell 1, winding roller 3 is installed in the left and right sides outer wall of equipment shell 1, heating calender assembly 4 is provided in the inside of equipment shell 1;

[0024] The heating and calendering assembly 4 comprises a mounting seat 401, the outer wall of the mounting seat 401 is connected with a spacing adjusting component 402, the inner wall of the mounting seat 401 is fixedly installed with a hollow connecting seat 404, the mounting seat 401 is provided with two groups of upper and lower mounting seats, the front and rear hollow connecting seats 404 are fixedly connected through a connecting rod 4011, the outer wall of the hollow connecting seat 404 is rotatably connected with a hollow pipe 405 through a sealing bearing 4010, the end of the hollow connecting seat 404 is communicated with a heat conducting oil circulating component 403, the outer wall of the mounting seat 401 is fixedly installed with a motor 406, the output end of the motor 406 is fixedly installed with a rotating shaft 407, the outer wall of the rotating shaft 407 is fixedly installed with a gear one 408, the gear one 408 is engaged with a gear two 409, the gear two 409 is fixedly installed on the outer wall of the hollow pipe 405, the calendering of the release film is realized by the upper and lower hollow pipes 405, the spacing between the upper and lower mounting seats 401 is adjusted through the spacing adjusting component 402, and then the spacing between the hollow pipes 405 is adjusted, the heat conducting oil is introduced into the hollow pipe 405 through the heat conducting oil circulating component 403, the hollow pipe 405 is heated by the flowing heat conducting oil, the hollow pipe 405 can be kept in the set temperature range, the temperature of the hollow pipe 405 is uniform due to the flowing heat conducting oil, and then the release film can be uniformly heated, so that the calendering effect is better, the rotating shaft 407 is driven to rotate by the motor 406, then the gear one 408 is driven to rotate, the gear two 409 is driven to rotate by the gear one 408, and then the hollow pipe 405 is driven to rotate, so that the problem that the hollow pipe 405 cannot rotate to cause obvious friction with the release film is avoided;

[0025] The inner wall of the equipment shell 1 is installed with the extrusion assembly 8, the inside of the equipment shell 1 is installed with the electric heating rod 7, the heating and calendering assembly 4 is located between the electric heating rod 7 and the extrusion assembly 8, the release film is preheated by the electric heating rod 7 before entering the heating and calendering assembly 4, so that the release film can reach the set temperature more quickly after entering the heating and calendering assembly 4, and the extrusion assembly 8 extrudes the calendered release film again, so that the release film does not shrink after calendering;

[0026] The spacing adjusting component 402 comprises a fixed plate 4021, an internally threaded plate 4022 and a bidirectional screw rod 4023, the fixed plate 4021 is fixedly installed on the outer wall of the equipment shell 1, the internally threaded plate 4022 is fixedly installed on the outer wall of the mounting seat 401, the bidirectional screw rod 4023 is rotatably connected with the fixed plate 4021 through a bearing, the internally threaded plate 4022 is threadedly sleeved on the bidirectional screw rod 4023, and the internally threaded plates 4022 on the mounting seats 401 in different groups are connected with the same bidirectional screw rod 4023, the internally threaded plates 4022 are moved upward or downward by rotating the bidirectional screw rod 4023, and then the spacing between the mounting seats 401 in different groups is adjusted;

[0027] The heat conducting oil circulating part 403 comprises a return tank 4031, a conveying pump one 4032, a heat conducting oil tank 4033, a conveying pump two 4035 and a distribution tank 4036. The return tank 4031 and the distribution tank 4036 are fixedly installed on the outer wall of the equipment shell 1. The front hollow connecting seat 404 is in communication with the inside of the return tank 4031 through a pipeline. The rear hollow connecting seat 404 is in communication with the distribution tank 4036 through a pipeline. The input end of the conveying pump one 4032 is in communication with the inside of the return tank 4031 through a pipeline. The output end of the conveying pump one 4032 is in communication with the inside of the heat conducting oil tank 4033. The input end of the conveying pump two 4035 is in communication with the inside of the heat conducting oil tank 4033 through a pipeline. The output end of the conveying pump two 4035 is in communication with the inside of the distribution tank 4036. The pipeline, through which the conveying pump two 4035 is in communication with the heat conducting oil tank 4033, is externally provided with a heating device 4034. The return tank 4031, the conveying pump one 4032, the heat conducting oil tank 4033, the conveying pump two 4035 and the distribution tank 4036 form a heat conducting oil circulating channel, so that the heat conducting oil in the heat conducting oil tank 4033 can enter the two hollow pipes 405 and then return to the heat conducting oil tank 4033 from the two hollow pipes 405, and the heat conducting oil is heated by the heating device 4034.

[0028] The outer wall of the heat conducting oil tank 4033 is in communication with a liquid inlet pipe 5 and a liquid outlet pipe 6. The liquid inlet pipe 5 and the liquid outlet pipe 6 are both plugged with sealing plugs. The liquid outlet pipe 6 is close to the bottom of the heat conducting oil tank 4033. The liquid inlet pipe 5 is arranged to add heat conducting oil into the heat conducting oil tank 4033. The liquid outlet pipe 6 is arranged to discharge the heat conducting oil in the heat conducting oil tank 4033.

[0029] The extrusion assembly 8 comprises two sets of installation supports 801. The outer wall of the installation support 801 is fixedly installed with an installation plate 802. The outer wall of the installation plate 802 is rotatably connected with a rubber roller 803 through a bearing. The installation support 801 is arranged to install the installation plate 802, and then install the rubber roller 803. When the release film passes through the upper and lower rubber rollers 803, the rubber roller 803 can extrude the release film to ensure that the release film will not shrink back.

[0030] The outer wall of the installation support 801 is fixedly installed with a blowing head 9. The input end of the blowing head 9 is in communication with an air inlet pipe 10. The air inlet pipe 10 is in communication with the output end of the workshop air cooler. The blowing head 9 is arranged to blow air to the release film, so that the release film can be quickly cooled when being extruded by the rubber roller 803, thereby avoiding excessive deformation of the release film caused by the extrusion of the rubber roller 803.

[0031] Working principle: in use, according to the setting of the release film, rotate the bidirectional screw rod 4023 to make the inner threaded plate 4022 move, and then adjust the spacing of the upper and lower hollow pipes 405, the release film will be preheated by the electric heating rod 7 before entering the two hollow pipes 405, when passing through the hollow pipe 405, the rotating hollow pipe 405 heats the release film on one side and calenders the release film on the other side, the calendered release film enters between the two rubber rollers 803, at this time, the cold air blows to the release film to make the release film rapidly cool down, and the rubber roller 803 extrudes the release film in the cooling process to avoid the release film from shrinking.

[0032] Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative labor belong to the range protected by the utility model.

Claims

1. A PET release film calendering apparatus, comprising an equipment housing (1), wherein inlet and outlet (2) are provided on the left and right sides of the equipment housing (1), and take-up rollers (3) are installed on the outer walls of the left and right sides of the equipment housing (1), characterized in that: The heating and rolling assembly (4) is provided inside the housing (1) of the equipment. The heating and rolling assembly (4) includes a mounting base (401), the outer wall of which is connected to a spacing adjustment component (402), and the inner wall of which is fixedly mounted with a hollow connecting seat (404). The mounting base (401) is provided with two sets, upper and lower, and the front and rear hollow connecting seats (404) are fixedly connected by a connecting rod (4011). The outer wall of the hollow connecting seat (404) is rotatably connected to a hollow tube (4010) through a sealed bearing (4010). 405), the end of the hollow connecting seat (404) is connected to the heat transfer oil circulation component (403), the outer wall of the mounting seat (401) is fixedly mounted with a motor (406), the output end of the motor (406) is fixedly mounted with a rotating shaft (407), the outer wall of the rotating shaft (407) is fixedly mounted with a gear one (408), the gear one (408) meshes with a gear two (409), and the gear two (409) is fixedly mounted on the outer wall of the hollow tube (405); The inner wall of the equipment housing (1) is equipped with an extrusion assembly (8), and an electric heating rod (7) is installed inside the equipment housing (1). The heating and calendering assembly (4) is located between the electric heating rod (7) and the extrusion assembly (8).

2. The PET release film calendering apparatus according to claim 1, characterized in that: The spacing adjustment component (402) includes a fixed plate (4021), an internal thread plate (4022), and a bidirectional lead screw (4023). The fixed plate (4021) is fixedly installed on the outer wall of the equipment housing (1). The internal thread plate (4022) is fixedly installed on the outer wall of the mounting base (401). The bidirectional lead screw (4023) is rotatably connected to the fixed plate (4021) through a bearing. The internal thread plate (4022) is threaded onto the bidirectional lead screw (4023). The internal thread plates (4022) on the mounting bases (401) in different groups are connected to the same bidirectional lead screw (4023).

3. The PET release film calendering apparatus according to claim 1, characterized in that: The heat transfer oil circulation component (403) includes a return box (4031), a first transfer pump (4032), a heat transfer oil tank (4033), a second transfer pump (4035), and a distribution box (4036). The return box (4031) and the distribution box (4036) are fixedly installed on the outer wall of the equipment casing (1). The front hollow connecting seat (404) is connected to the inside of the return box (4031) through a pipe, and the rear hollow connecting seat (404) is connected to the distribution box (4036) through a pipe. The input end of pump one (4032) is connected to the inside of the return box (4031) through a pipe. The output end of the delivery pump one (4032) is connected to the inside of the heat transfer oil tank (4033). The input end of the delivery pump two (4035) is connected to the inside of the heat transfer oil tank (4033) through a pipe. The output end of the delivery pump two (4035) is connected to the inside of the diversion box (4036). A heating device (4034) is installed outside the pipe connecting the delivery pump two (4035) and the heat transfer oil tank (4033).

4. A PET release film calendering apparatus according to claim 3, characterized in that: The outer wall of the heat transfer oil tank (4033) is connected to an inlet pipe (5) and a drain pipe (6). Both the inlet pipe (5) and the drain pipe (6) are plugged with sealing plugs. The drain pipe (6) is close to the bottom of the heat transfer oil tank (4033).

5. A PET release film calendering apparatus according to claim 1, characterized in that: The extrusion assembly (8) includes a mounting bracket (801), which is provided with two sets, upper and lower. An mounting plate (802) is fixedly installed on the outer wall of the mounting bracket (801), and a rubber roller (803) is rotatably connected to the outer wall of the mounting plate (802) through a bearing.

6. A PET release film calendering apparatus according to claim 5, characterized in that: A blower head (9) is fixedly installed on the outer wall of the mounting bracket (801). The input end of the blower head (9) is connected to an air inlet pipe (10). The air inlet pipe (10) is connected to the output end of the workshop air cooler. The blower head (9) has two parts, one above the other.