Destressing oven for PVDF (polyvinylidene fluoride) plates
The PVDF sheet stress relief oven designed with a servo motor-driven transmission chain and guide groove pulley solves the time-consuming, labor-intensive and uneven problems of traditional methods, achieves efficient and precise stress relief treatment, and ensures the stability and uniform heating of the sheet in a high-temperature environment.
Patent Information
- Application Number
- CN202422391211.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Traditional stress relief methods for PVDF sheets are time-consuming, labor-intensive, and uneven, making it difficult to ensure the accurate and stable position of the sheets in the oven, thus affecting the stress relief effect.
A servo motor drives the transmission chain to drive the transport vehicle, combined with a guide groove and pulley design to achieve automatic transportation of PVDF sheets. A heater group and insulation layer are set in the oven to ensure uniform heating.
It improves the accuracy and efficiency of stress relief treatment, avoids damage to the plate due to improper movement in a high temperature environment, ensures the accuracy and stability of the plate position, and saves energy.
Smart Images

Figure CN223420153U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PVDF plates, in particular to a stress relief oven for PVDF plates. Background Art
[0002] Polyvinylidene fluoride, abbreviated as PVDF, is a highly non-reactive thermoplastic fluoropolymer. PVDF is a material with special properties such as high strength, corrosion resistance, oxidation resistance, weather resistance, and high temperature resistance. PVDF pipes and fittings have high strength and an operating temperature of -40℃-150℃.
[0003] In the production process of PVDF sheets, stress removal is a key step. Traditional stress relief methods usually use manual or semi-automatic methods to place the sheets in an oven for heating treatment. This method has the following shortcomings: first, manual or semi-automatic operation is not only time-consuming and labor-intensive, but also easily leads to uneven treatment, affecting the quality of the sheets. In addition, due to the limitations of manual operation, it is difficult to ensure that the position of the sheets in the oven is accurate and stable, which affects the effect of stress relief. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a PVDF plate stress relief oven.
[0005] The utility model is implemented by the following technical solution: a PVDF plate stress relief oven includes a support table, an oven body is provided on one side of the outer surface of the support table, a plurality of support frames are fixedly connected to the inner bottom wall of the oven body, a chain protection box is fixedly connected to the surface of the support frame, a transmission chain is provided inside the chain protection box, a transport vehicle is fixedly connected to the surface of the transmission chain, the upper surface of the support table is fixedly connected to a mounting base, the surface of the transmission chain is transmission-connected to a servo motor, and the servo motor is fixedly mounted on the upper surface of the mounting base by bolts.
[0006] Through the above technical solution, the servo motor drives the transmission chain to realize the automatic transportation of the transport vehicle, thereby improving the work efficiency and processing accuracy.
[0007] As a further improvement to the above solution, guide grooves are provided on both sides of the upper surface of the support table, and pulleys are slidably connected inside the guide grooves.
[0008] Through the above technical solution, guide grooves are opened on both sides of the upper surface of the support table for sliding connection of the pulley to provide a guiding function. The sliding connection is inside the guide groove and is fixedly connected to the transport vehicle to ensure that the transport vehicle maintains an accurate track during movement.
[0009] As a further improvement of the above solution, there are four pulleys, which are fixedly connected to the four corners of the lower surface of the transport vehicle.
[0010] Through the above technical solution, the number of pulleys is set to four, and they are fixedly connected to the four corners of the lower surface of the transport vehicle. This design can provide better stability and support. The four pulleys can evenly distribute the weight of the transport vehicle, reduce the load of a single pulley, and extend the service life of the pulley.
[0011] As a further improvement of the above solution, a protective platform is fixedly connected to the upper surface of the transport vehicle, and a PVDF plate body is provided on the upper surface of the protective platform.
[0012] Through the above technical solution, the protective platform is fixedly connected to the upper surface of the transport vehicle and is used to place and fix the PVDF sheet body, which is placed on the upper surface of the protective platform and remains stable and safe through the positioning and protection functions of the protective platform.
[0013] As a further improvement of the above solution, a heater group is fixedly connected to the inner wall of the oven body.
[0014] Through the above technical solution, the heater group is fixedly connected to the inner wall of the oven body, providing a high-temperature environment to help the PVDF sheet remove stress.
[0015] As a further improvement of the above solution, the inner wall of the oven body is provided with a heat-insulating layer.
[0016] Through the above technical solution, the insulation layer can effectively reduce heat loss inside the oven, improve thermal efficiency, and thus save energy. The insulation layer helps to maintain temperature uniformity inside the oven, ensuring that the plates are processed at a constant temperature.
[0017] As a further improvement of the above solution, sealed doors are hinged on both sides of the front end of the oven body.
[0018] With the above technical solution, the user can conveniently open the sealed box door through the hinge structure.
[0019] Compared with the prior art, the beneficial effects of the present invention are:
[0020] The utility model realizes high-precision automatic transportation of the transport vehicle by driving the transmission chain through a servo motor. When the servo motor is started, the transport vehicle is driven to move by the transmission chain, and the pulley on the transport vehicle slides inside the guide groove to ensure that the transport vehicle moves smoothly along the predetermined track. This design not only improves the accuracy and stability of transportation, but also avoids damage to the plates due to improper movement in a high-temperature environment, thereby improving work efficiency and processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0022] Figure 2 This is an enlarged structural diagram of the transmission chain of the utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the heater group of the utility model;
[0024] Figure 4 It is a structural schematic diagram of the pulley of the utility model.
[0025] Description of main symbols:
[0026] 1. Support table; 2. Oven body; 3. Support frame; 4. Chain protection box; 5. Drive chain; 6. Transport vehicle; 7. Mounting base; 8. Servo motor; 9. Guide groove; 10. Pulley; 11. Protection table; 12. PVDF sheet body; 13. Heater group; 14. Insulation layer; 15. Sealed oven door. DETAILED DESCRIPTION
[0027] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example
[0028] Please combine Figure 1-4 The PVDF sheet stress relief oven of this embodiment includes a supporting table 1, an oven main body 2 is provided on one side of the outer surface of the supporting table 1, and several supporting frames 3 are fixedly connected to the inner bottom wall of the oven main body 2. The surface of the supporting frame 3 is fixedly connected to a chain protection box 4. A transmission chain 5 is provided inside the chain protection box 4. The surface of the transmission chain 5 is fixedly connected to a transport trolley 6. The upper surface of the supporting table 1 is fixedly connected to a mounting base 7. The surface of the transmission chain 5 is transmission-connected to a servo motor 8. The servo motor 8 is fixedly installed on the upper surface of the mounting base 7 by bolts. When the servo motor 8 is started, the transport trolley 6 is driven to move by the transmission chain 5. The transport trolley 6 carries the PVDF sheet and enters the interior of the oven main body 2 through the drive of the transmission chain 5. The heating device inside the oven main body 2 provides a high temperature environment to help the PVDF sheet remove stress. Under the drive of the transmission chain 5, the transport trolley 6 moves smoothly inside the oven main body 2 to ensure that the sheet is evenly heated. After the stress relief treatment is completed, the transport trolley 6 is moved out of the oven main body 2 by the drive of the transmission chain 5, completing the entire stress relief treatment process.
[0029] Guide grooves 9 are provided on both sides of the upper surface of the support table 1. Pulleys 10 are slidably connected inside the guide grooves 9. When the servo motor 8 is started, the transport vehicle 6 is driven to move through the transmission chain 5. The pulleys 10 on the transport vehicle 6 slide inside the guide grooves 9 to ensure that the transport vehicle 6 moves smoothly along the predetermined trajectory.
[0030] There are four pulleys 10, which are fixedly connected to the four corners of the lower surface of the transport vehicle 6. The pulleys 10 at the four corners can better adapt to the changes of the guide groove 9, improve the guiding accuracy, and ensure that the transport vehicle 6 maintains a smooth and accurate trajectory during movement.
[0031] The upper surface of the transport vehicle 6 is fixedly connected to a protective platform 11 , and the upper surface of the protective platform 11 is provided with a PVDF plate body 12 . The PVDF plate body 12 is placed on the upper surface of the protective platform 11 to ensure that the plate is positioned accurately and stably.
[0032] A heater group 13 is fixedly connected to the inner wall of the oven body 2. The heater group 13 inside the oven body 2 provides a high temperature environment to help the PVDF sheet remove stress and ensure that the sheet is evenly heated.
[0033] The inner wall of the oven body 2 is provided with an insulation layer 14, which is made of materials such as high-density aluminum silicate wool. These materials have good thermal insulation properties and can effectively prevent heat from being lost to the external environment through conduction, convection and radiation. The presence of the insulation layer 14 makes the hot air evenly distributed in the oven.
[0034] Sealed doors 15 are hinged on both sides of the front end of the oven body 2. Due to the good sealing performance of the sealed doors 15, heat loss and the entry of external cold air are reduced, thereby maintaining a high temperature environment inside the oven.
[0035] The implementation principle of the PVDF plate stress relief oven in the embodiment of the present application is as follows: a person places the PVDF plate body 12 on the upper surface of the protective platform 11 on the transport vehicle 6 to ensure that the plate position is accurate and stable, the servo motor 8 is fixedly installed on the upper surface of the mounting base 7 by bolts, the servo motor 8 is started, and the transport vehicle 6 is driven to move by the transmission chain 5, and the pulley 10 on the transport vehicle 6 slides inside the guide groove 9 to ensure that the transport vehicle 6 moves smoothly along the predetermined trajectory, and the transport vehicle 6 carries the PVDF plate and enters the interior of the oven body 2 through the drive of the transmission chain 5. The heater group 13 inside the oven body 2 provides a high temperature environment to help the PVDF plate remove stress, and the transport vehicle Driven by the transmission chain 5, the transport trolley 6 moves smoothly inside the oven body 2 to ensure that the plates are evenly heated. The insulation layer 14 is made of high-density aluminum silicate wool and other materials, which can effectively prevent heat from being lost to the external environment through conduction, convection and radiation, and maintain the high temperature environment inside the oven. During the baking process, the sealed door 15 is connected to the oven body 2 by a hinge, which can be easily opened and closed, and can fit tightly against the oven body 2 when closed, forming an enclosed space, reducing heat loss and the entry of external cold air. After completing the stress relief treatment, the transport trolley 6 is moved out of the oven body 2 by the drive of the transmission chain 5, completing the entire stress relief treatment process.
[0036] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.
Claims
1. PVDF sheet stress relief oven, characterized by: The invention comprises a support table (1), an oven body (2) is provided on one side of the outer surface of the support table (1), a plurality of support frames (3) are fixedly connected to the inner bottom wall of the oven body (2), a chain protection box (4) is fixedly connected to the surface of the support frame (3), a transmission chain (5) is provided inside the chain protection box (4), a transport vehicle (6) is fixedly connected to the surface of the transmission chain (5), a mounting base (7) is fixedly connected to the upper surface of the support table (1), a servo motor (8) is transmission-connected to the surface of the transmission chain (5), and the servo motor (8) is fixedly mounted on the upper surface of the mounting base (7) by bolts.
2. The PVDF sheet stress relief oven according to claim 1, characterized in that: Guide grooves (9) are provided on both sides of the upper surface of the support table (1), and pulleys (10) are slidably connected inside the guide grooves (9).
3. The PVDF sheet stress relief oven according to claim 2, characterized in that: There are four pulleys (10) which are fixedly connected to the four corners of the lower surface of the transport vehicle (6).
4. The PVDF sheet stress relief oven according to claim 1, characterized in that: The upper surface of the transport vehicle (6) is fixedly connected to a protective platform (11), and the upper surface of the protective platform (11) is provided with a PVDF plate body (12).
5. The PVDF sheet stress relief oven according to claim 1, characterized in that: A heater group (13) is fixedly connected to the inner wall of the oven body (2).
6. The PVDF sheet stress relief oven according to claim 1, characterized in that: The inner wall of the oven body (2) is provided with a heat-insulating layer (14).
7. The PVDF sheet stress relief oven according to claim 1, characterized in that: Sealed oven doors (15) are hinged on both sides of the front end of the oven body (2).