A preheating device for a polytetrafluoroethylene film

Abstract

The utility model discloses a kind of preheating devices of polytetrafluoroethylene film, including preheating oven, the first preheating roller is provided at one end of preheating oven feed inlet, the upper portion of first preheating roller side is provided with second preheating roller, the composition structure of first preheating roller and second preheating roller is same, the left and right sides of one end of preheating oven feed inlet are fixedly installed with support arm, between the second preheating roller with support arm, there is lifting assembly.The utility model discloses a kind of preheating devices of polytetrafluoroethylene film, by the first preheating roller and second preheating roller being set, hot water is circulated in the interlayer inside first preheating roller and second preheating roller, by hot water to polytetrafluoroethylene film is heated in advance, to reduce the time of polytetrafluoroethylene film in preheating oven inside heating, improve the efficiency of processing, by the lifting assembly being set, the height of first preheating roller is conveniently adjusted, the size of polytetrafluoroethylene film feeding tension is conveniently adjusted.

Description

Technical Field

[0001] This utility model relates to the field of polytetrafluoroethylene (PTFE) membrane processing technology, specifically to a preheating device for PTFE membrane. Background Technology

[0002] Polytetrafluoroethylene (PTFE) membranes are widely used in filtration, electronics, and medical fields due to their excellent chemical stability, high temperature resistance, and low coefficient of friction. During processing, PTFE membranes typically require preheating in a preheating oven to improve their ductility and prevent cracking or uneven thickness during direct high-temperature stretching. This ensures the stability and uniformity of subsequent stretching, lamination, or molding processes.

[0003] However, existing preheating technologies have the following significant drawbacks:

[0004] 1. Low preheating efficiency: Traditional preheating ovens take a long time to heat PTFE membranes, resulting in low overall processing efficiency, which is difficult to meet the high efficiency requirements of industrial production.

[0005] 2. Inconvenient tension adjustment: Existing equipment lacks a flexible tension adjustment mechanism, making it impossible to quickly adjust the feed tension of the PTFE membrane according to different process requirements, which affects the stability of processing quality.

[0006] Therefore, we propose a preheating device for polytetrafluoroethylene membranes. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this utility model provides a preheating device for polytetrafluoroethylene (PTFE) membranes, which facilitates heating of the PTFE membranes before they enter the preheating oven, reduces the preheating time of the PTFE membranes inside the preheating oven, and improves processing efficiency, thus effectively solving the problems in the background technology.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a preheating device for polytetrafluoroethylene film, comprising a preheating oven, a first preheating roller is provided at one end of the feed inlet of the preheating oven, a second preheating roller is provided on the upper part of one side of the first preheating roller, the first preheating roller and the second preheating roller have the same composition and structure, support arms are fixedly installed on both the left and right sides of one end of the feed inlet of the preheating oven, a lifting assembly is connected between the second preheating roller and the support arm, the number of lifting assemblies and support arms are two sets, the lifting assembly is installed on the upper part of the outer surface of one side of the support arm, the lifting assembly includes a hydraulic rod, a fixing block, a guide ring, a guide rod, a connecting arm, a connecting plate and a reinforcing block, an inlet pipe is fixedly installed on the outer surface of one end of the first preheating roller and the second preheating roller, an outlet pipe is fixedly installed on the outer surface of the other end of the first preheating roller and the second preheating roller, a jacket is provided inside the second preheating roller, and the inner cavity of the inlet pipe and the outlet pipe communicates with the jacket.

[0011] Preferably, a spiral guide vane is fixedly installed in the interlayer.

[0012] Preferably, a bearing is provided between the liquid inlet pipe and the liquid outlet pipe in the first preheating roller and the support arm, and the liquid inlet pipe and the liquid outlet pipe in the first preheating roller are rotatably connected to the support arm through the bearing.

[0013] Preferably, a bearing is provided between the liquid inlet pipe and the liquid outlet pipe in the second preheating roller and the connecting plate, and the liquid inlet pipe and the liquid outlet pipe in the second preheating roller are rotatably connected to the connecting plate through the bearing.

[0014] Preferably, the fixing block is fixedly installed at the middle of the upper outer surface of the support arm and the upper part of the outer surface of the cylinder on one side of the hydraulic rod. The guide ring is fixedly installed at the middle of the upper outer surface of the fixing block. The connecting arm is fixedly installed at the upper part of the outer surface of the piston rod on one side of the hydraulic rod. A guide rod is fixedly installed on the lower outer surface of the connecting arm. The guide rod passes through the guide ring, and the outer wall of the guide rod and the guide ring are slidably connected.

[0015] Preferably, the outer surface of the end of the connecting arm away from the hydraulic rod is fixedly connected to the lower part of the outer surface of one side of the connecting plate, and the reinforcing block is fixedly installed on the upper outer surface of the connecting arm and fixedly connected to the lower part of the outer surface of one side of the connecting plate.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a preheating device for polytetrafluoroethylene membrane, which has the following beneficial effects:

[0018] 1. A preheating device for polytetrafluoroethylene (PTFE) film, wherein hot water flows through the interlayer between the first preheating roller and the second preheating roller, and the PTFE film is preheated by the hot water, thereby reducing the heating time of the PTFE film inside the preheating oven and improving the processing efficiency.

[0019] 2. This preheating device for polytetrafluoroethylene (PTFE) film can conveniently control the feeding tension of the PTFE film by adjusting the height of the second preheating roller through a lifting assembly (including hydraulic rods, guide rods, etc.), adapting to different process requirements and ensuring the stability of processing quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a preheating device for a polytetrafluoroethylene membrane according to the present invention.

[0021] Figure 2 This is a schematic diagram of the lifting component in a preheating device for a polytetrafluoroethylene membrane according to this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the second preheating roller in the preheating device for a polytetrafluoroethylene membrane according to this utility model.

[0023] Figure 4 This is a side cross-sectional view of the second preheating roller in the preheating device for a polytetrafluoroethylene membrane according to this utility model.

[0024] In the diagram: 1. Preheating oven; 2. First preheating roller; 3. Second preheating roller; 4. Support arm; 5. Lifting assembly; 6. Hydraulic rod; 7. Fixing block; 8. Guide ring; 9. Guide rod; 10. Connecting arm; 11. Connecting plate; 12. Reinforcing block; 14. Liquid inlet pipe; 15. Liquid outlet pipe; 16. Jacket; 17. Spiral guide vane. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] This embodiment is a preheating device for a polytetrafluoroethylene membrane.

[0027] like Figure 1-4As shown, the oven includes a preheating oven 1. A first preheating roller 2 is provided at one end of the feed inlet of the preheating oven 1. A second preheating roller 3 is provided on the upper part of one side of the first preheating roller 2. The first preheating roller 2 and the second preheating roller 3 have the same structure. Support arms 4 are fixedly installed on both the left and right sides of one end of the feed inlet of the preheating oven 1. A lifting assembly 5 is connected between the second preheating roller 3 and the support arms 4. There are two sets of lifting assemblies 5 and two sets of support arms 4. The lifting assembly 5 is installed on the upper part of the outer surface of one side of the support arm 4. The lifting assembly 5 includes a hydraulic rod 6, a fixing block 7, a guide ring 8, a guide rod 9, a connecting arm 10, a connecting plate 11, and a reinforcing block 12. A liquid inlet pipe 14 is fixedly installed on the outer surface of one end of the first preheating roller 2 and the second preheating roller 3. A liquid outlet pipe 15 is fixedly installed on the outer surface of the other end of the first preheating roller 2 and the second preheating roller 3. A jacket 16 is provided inside the second preheating roller 3. The inner cavities of the liquid inlet pipe 14 and the liquid outlet pipe 15 are connected to the jacket 16.

[0028] A spiral guide vane 17 is fixedly installed in the interlayer 16; bearings are provided between the inlet pipe 14 and outlet pipe 15 of the first preheating roller 2 and the support arm 4, and the inlet pipe 14 and outlet pipe 15 of the first preheating roller 2 are rotatably connected to the support arm 4 through the bearings; bearings are provided between the inlet pipe 14 and outlet pipe 15 of the second preheating roller 3 and the connecting plate 11, and the inlet pipe 14 and outlet pipe 15 of the second preheating roller 3 are rotatably connected to the connecting plate 11 through the bearings; a fixing block 7 is fixedly installed in the middle of the upper outer surface of the support arm 4 and on one side of the cylinder of the hydraulic rod 6. On the upper part of the outer surface, the guide ring 8 is fixedly installed in the middle of the upper outer surface of the fixed block 7, the connecting arm 10 is fixedly installed on the upper part of the outer surface of the piston rod side of the hydraulic rod 6, and the lower outer surface of the connecting arm 10 is fixedly installed with a guide rod 9, which passes through the guide ring 8. The outer wall of the guide rod 9 and the guide ring 8 are slidably connected. The outer surface of the connecting arm 10 away from the hydraulic rod 6 is fixedly connected to the lower part of the outer surface of the connecting plate 11. The reinforcing block 12 is fixedly installed on the upper outer surface of the connecting arm 10 and fixedly connected to the lower part of the outer surface of the connecting plate 11.

[0029] It should be noted that this utility model is a preheating device for polytetrafluoroethylene (PTFE) membranes. The preheating oven 1 described herein is prior art and can be readily understood by those skilled in the art; therefore, further details are omitted. The first preheating roller 2 and the second preheating roller 3 are provided, with their inlet pipes 14 and outlet pipes 15 connected to external hot water supply pipes via rotary joints. This allows fluid to pass through while achieving 360° continuous rotation, preventing pipe twisting. The inlet pipe 14 delivers hot water into the jacket 16, where it is guided by the spiral guide vanes 17, extending the flow time of the hot water in the jacket 16 and improving the utilization rate of the hot water. The PTFE membrane undergoes... After being heated by the first preheating roller 2 and the second preheating roller 3, the PTFE film enters the preheating oven 1 for preheating. After being heated by the first preheating roller 2 and the second preheating roller 3, the heating time of the PTFE film inside the preheating oven 1 is reduced, improving the processing efficiency. The lifting assembly 5 is set up to drive the connecting plate 11 to rise and fall through the operation of the hydraulic rod 6. The connecting plate 11 drives the second preheating roller 3 to rise and fall. The guide rod 9 slides along the guide ring 8 to improve the stability of the second preheating roller 3's rise and fall. The PTFE film passes through the lower end of the first preheating roller 2 and the upper outer surface of the second preheating roller 3. By adjusting the height of the second preheating roller 3, the tension of the PTFE film is adjusted, improving its applicability.

[0030] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A preheating device for a polytetrafluoroethylene membrane, comprising a preheating oven (1), characterized in that: A first preheating roller (2) is provided at one end of the feed inlet of the preheating oven (1), and a second preheating roller (3) is provided on the upper part of one side of the first preheating roller (2). The first preheating roller (2) and the second preheating roller (3) have the same structure. Support arms (4) are fixedly installed on both the left and right sides of one end of the feed inlet of the preheating oven (1). A lifting assembly (5) is connected between the second preheating roller (3) and the support arm (4). There are two sets of lifting assemblies (5) and support arms (4). The lifting assembly (5) is installed on the upper part of the outer surface of one side of the support arm (4). The lifting assembly (5) includes a hydraulic rod (6), a fixing block (7), a guide ring (8), a guide rod (9), a connecting arm (10), a connecting plate (11), and a reinforcing block (12). One end of the first preheating roller (2) and the second preheating roller (3) are fixedly equipped with an inlet pipe (14), and the other end of the first preheating roller (2) and the second preheating roller (3) are fixedly equipped with an outlet pipe (15). The second preheating roller (3) has an internal interlayer (16), and the inner cavity of the inlet pipe (14) and the outlet pipe (15) is connected to the interlayer (16).

2. The preheating device for a polytetrafluoroethylene membrane according to claim 1, characterized in that: A spiral guide vane (17) is fixedly installed in the interlayer (16).

3. The preheating device for a polytetrafluoroethylene membrane according to claim 2, characterized in that: A bearing is provided between the inlet pipe (14), the outlet pipe (15) of the first preheating roller (2) and the support arm (4). The inlet pipe (14) and the outlet pipe (15) of the first preheating roller (2) are rotatably connected to the support arm (4) through the bearing.

4. The preheating device for a polytetrafluoroethylene membrane according to claim 3, characterized in that: A bearing is provided between the inlet pipe (14), the outlet pipe (15) of the second preheating roller (3) and the connecting plate (11). The inlet pipe (14) and the outlet pipe (15) of the second preheating roller (3) are rotatably connected to the connecting plate (11) through the bearing.

5. The preheating device for a polytetrafluoroethylene membrane according to claim 4, characterized in that: The fixing block (7) is fixedly installed on the middle part of the upper outer surface of the support arm (4) and the upper part of the outer surface of the cylinder side of the hydraulic rod (6). The guide ring (8) is fixedly installed on the middle part of the upper outer surface of the fixing block (7). The connecting arm (10) is fixedly installed on the upper part of the outer surface of the piston rod side of the hydraulic rod (6). The lower outer surface of the connecting arm (10) is fixedly installed with a guide rod (9). The guide rod (9) passes through the guide ring (8). The outer wall of the guide rod (9) and the guide ring (8) are slidably connected.

6. The preheating device for a polytetrafluoroethylene membrane according to claim 5, characterized in that: The outer surface of the end of the connecting arm (10) away from the hydraulic rod (6) is fixedly connected to the lower part of the outer surface of one side of the connecting plate (11), and the reinforcing block (12) is fixedly installed on the upper outer surface of the connecting arm (10) and fixedly connected to the lower part of the outer surface of one side of the connecting plate (11).

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