PTFE (Polytetrafluoroethylene) film with single-pull guide structure

Abstract

A PTFE film with a single-pull guide structure comprises a guide base, a guide block, a movable clamping plate, a gear disc, a position control shaft rod, a control plate and a limiting retaining ring, containing grooves are formed in the two sides of the guide block and matched with the gear disc, the gear disc is connected with the containing grooves, the guide block is attached to the outer portion of the gear disc, the guide base is attached to the two sides of the guide block, and a fixing plate is arranged on the lower portion of the guide base. The upper portion of the guide seat is provided with scale marks, the inner side of the guide seat is provided with a rack, the rack is meshed with a gear disc, the gear disc is connected with the rack, the guide block is provided with a fixed clamping plate, the fixed clamping plate is connected with a lower anti-skid rubber mat, the upper portion of the fixed clamping plate is connected with a movable clamping plate, and the movable clamping plate is connected with an upper anti-skid rubber mat. The movable clamping plate is provided with a connecting block, the connecting block is connected with the connecting lug through a movable shaft rod, the movable shaft rod is sequentially connected with the connecting lug and the connecting block, and the connecting block rotates on the movable shaft rod.

Description

Technical Field

[0001] The utility model relates to the field of PTFE membranes, in particular to a PTFE membrane with a single-drawing guiding structure. Background Art

[0002] The existing patent (Publication No.: CN216330638U) proposes a single-drawing PTFE membrane capable of restricting the stretching direction, which includes a membrane body and a non-woven fabric. The membrane body is laminated on the top of the non-woven fabric, and a knitting layer is provided between the membrane body and the non-woven fabric. The knitting layer includes horizontal knitting threads, knitting filaments, and elastic threads. The knitting filaments pass through the horizontal knitting threads and are knitted together with the membrane body. The elastic threads are sleeved on two horizontal knitting threads. A stretching restriction assembly is provided outside the membrane body. In this utility model, by laminating the membrane body on the non-woven fabric and arranging a knitting layer between the membrane body and the non-woven fabric, and knitting the horizontal knitting threads and the membrane body together through the knitting filaments, the membrane body and the horizontal knitting threads can be tightly connected together. And by setting the stretching restriction assembly, the fixing buckle is clamped on the membrane body and the non-woven fabric, and the fixing belt connects the two fixing buckles together. The horizontal knitting threads and the fixing belt do not have stretching properties, so that the stretching direction of the membrane body can be effectively restricted. However, this device needs to knit the membrane body and the horizontal knitting threads together for tensile testing. Its testing operation efficiency is low, and at the same time, it is impossible to control and observe the stretching length of the PTEE membrane, which has drawbacks. Summary of the Invention

[0003] Aiming at the above deficiencies of the existing technology, the utility model provides a PTFE membrane with a single-drawing guiding structure, which can keep the PTEE membrane stretched in a straight line by single-drawing guiding the PTEE membrane, prevent the stretching direction of the PTEE membrane from deviating, improve the accuracy of single-drawing test data, and at the same time, the fixing, disassembly and single-drawing test process of the PTEE membrane are convenient and fast, improving the detection operation efficiency. And by single-drawing holding the PTEE membrane, it is convenient to control, observe and record the data of the single-drawing length of the PTEE.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A PTFE film with a single-pull guiding structure, comprising a guiding seat, a guiding block, a movable clamping plate, a gear disc, a position-control shaft rod, a control plate, and a limit retaining ring. The two sides of the guiding block are provided with placing grooves, which are adapted to the gear disc. The gear disc is connected to the placing grooves, and the outside of the gear disc is attached to the guiding block. The two sides of the guiding block are attached to the guiding seat. The lower part of the guiding seat has a fixing plate, and the fixing plate is connected to the workbench. The upper part of the guiding seat has scale lines, and the inner side of the guiding seat has a rack, which meshes with the gear disc, and the gear disc is connected to the rack. The guiding block has a fixed clamping plate, and the fixed clamping plate is connected to a lower anti-slip rubber pad. The upper part of the fixed clamping plate is connected to the movable clamping plate, and the movable clamping plate is connected to an upper anti-slip rubber pad. The fixed clamping plate has connecting ears, and the movable clamping plate has connecting blocks. The connecting blocks are connected to the connecting ears through movable shaft rods. The movable shaft rods are sequentially connected to the connecting ears and the connecting blocks, and the connecting blocks rotate on the movable shaft rods. The two sides of the fixed clamping plate have fixed grooves, and the two sides of the movable clamping plate have fixed protrusions, which are adapted to the fixed grooves, and the fixed protrusions are connected to the fixed grooves.

[0006] In the present utility model, the upper part of the guiding block has a limit support sleeve. The position-control shaft rod sequentially passes through the guiding block, the gear disc, the limit support sleeve, and a spring strip. The upper end of the position-control shaft rod is connected to the control plate, and the lower end of the position-control shaft rod has a plurality of baffles, which are attached to the guiding block. The guiding block has a plurality of lock rod through holes, and the upper part of the baffles has lock rods. The gear disc has a plurality of lock grooves, which are adapted to the lock rods. The lock rods pass through the lock rod through holes, and the lock rods are connected to the lock grooves.

[0007] In the present utility model, the limit support sleeve is connected to the lower end of the spring strip, and the upper end of the spring strip is connected to the control plate. The outside of the limit support sleeve is connected to the limit retaining ring. The inner side of the limit retaining ring has a limit clamping plate. The two sides of the limit support sleeve have clamping plate through holes. The two sides of the position-control shaft rod have limit clamping grooves, which are adapted to the limit clamping plate. The limit clamping plate passes through the clamping plate through holes, and the limit clamping plate is connected to the limit clamping grooves, and the limit clamping plate slides in the limit clamping grooves. Beneficial effects

[0008] After the PTFE film of the present utility model is made into a finished product, a uniaxial tensile test needs to be carried out on it to determine whether it meets the production requirements. During the test, first, one end of the PTEE film is wound and fixed by a winding roller, while the other end of the PTEE film is placed on the upper part of the fixed clamping plate at the front end of the guiding block, and is pressed and fixed by buckling the movable clamping plate. Anti-slip rubber pads are respectively provided on the inner sides of the movable clamping plate and the fixed clamping plate. Both the upper and lower anti-slip rubber pads are made of rubber, which can increase the frictional resistance between the clamping plate and the PTEE film contact surface, strengthen the fixing firmness of the PTEE film, and prevent it from detaching during the uniaxial tensile test. Then, by pressing down the control panel, the two side control position shaft rods are pushed down until the locking rod is completely separated from the gear disk. At this time, the positioning fulcrum of the control position shaft rod on the gear disk disappears, and while pressing down the control panel, it is pushed, causing the guiding block to drive one end of the PTEE film to perform a linear tensile displacement in the guiding seat for unit test detection. When the pressure on the control panel disappears, the control panel is pushed by the elastic tension of the spring strip itself, driving the two side control position shaft rods to move upward and reset to the position where the locking rod is inserted into the locking groove to brake and lock the gear disk, so as to freeze and hold the uniaxial tensile data of the PTEE film, facilitate the recording of test data, prevent the PTEE from moving back, causing data errors, and improve the accuracy of the uniaxial tensile test data of the PTEE film.

[0009] The movable clamping plate and the fixed clamping plate of the present utility model are movably connected, which is convenient for opening and closing, improves the disassembly and assembly and fixing efficiency of the PTEE film, and is convenient for its uniaxial tensile guidance, and keeps the PTEE film in linear tension, preventing the stretching direction of the PTEE film from deviating, and improving the accuracy of uniaxial tensile test data.

[0010] The guiding seat of the present utility model is fixed on the workbench through a fixing plate, which limits the guiding direction of the guiding block, enables the guiding block to maintain linear tension, prevents the stretching direction of the PTEE from deviating, and at the same time, the rack inside the guiding seat is meshed with the gear disk, and the PTEE film is stretched and held by braking the gear disk, which is convenient for observing and recording the stretching test data of it.

[0011] The two side limit snap rings of the present utility model are oppositely buckled and fixed on the outside of the limit support sleeve. The limit clamping plates inside it increase the connection fulcrum between the limit support sleeve and the control position shaft rod, and at the same time limit the position of the control position shaft rod, enabling it to maintain longitudinal linear displacement and prevent it from rotating, resulting in misalignment between the locking rod and the locking groove, improving the structural stability, and the reading port of the outer limit snap ring cooperates with the scale line, which is convenient for controlling and observing the uniaxial tensile length of the PTEE.

[0012] The utility model guides the PTEE film by single drawing, keeps the PTEE film in linear stretching, prevents the stretching direction of the PTEE film from deviating, improves the accuracy of single drawing test data, and at the same time, the fixing, disassembly and single drawing test process of the PTEE film are convenient to operate, improves the detection operation efficiency, and by keeping the single drawing of the PTEE film, it is convenient to control, observe and record the data of the single drawing length of the PTEE. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 FIG. is a schematic structural diagram of a PTFE film with a single drawing guiding structure according to the utility model.

[0014] Figure 2 FIG. is a bottom view of a PTFE film with a single drawing guiding structure according to the utility model.

[0015] Figure 3 FIG. is a schematic structural diagram of the connection structure of the guiding seat and the guiding block according to the utility model.

[0016] Figure 4 FIG. is a sectional view of a PTFE film with a single drawing guiding structure according to the utility model.

[0017] Figure 5 FIG. is a cross-sectional view of a PTFE film with a single drawing guiding structure according to the utility model.

[0018] Figure 6 FIG. is a sectional view of the limiting structure of the position control shaft rod according to the utility model.

[0019] Figure 7 FIG. is a schematic structural diagram of the guiding block according to the utility model.

[0020] Figure 8 FIG. is a schematic structural diagram of the position control shaft rod according to the utility model.

[0021] Figure 9 FIG. is a schematic structural diagram of the outer limiting snap ring according to the utility model.

[0022] Figure 10 FIG. is an exploded view of the guiding block structure according to the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further details the utility model with reference to the drawings and embodiments:

[0024] Embodiment 1:

[0025] A PTFE film with a single-pull guiding structure, comprising a guiding base 01, a guiding block 02, a movable clamping plate 13, a gear disk 15, a position-control shaft rod 22, a control board 26, and a limit snap ring 29. Both sides of the guiding block 02 are provided with placing grooves 17, which are adapted to the gear disk 15. The gear disk 15 is connected to the placing grooves 17, and the outside of the gear disk 15 is in contact with the guiding block 02. Both sides of the guiding block 02 are in contact with the guiding base 01. The lower part of the guiding base 01 is provided with a fixing plate 37, and the fixing plate 37 is connected to the workbench. The upper part of the guiding base 01 is provided with scale lines 03. The inner side of the guiding base 01 is provided with a rack 16, which meshes with the gear disk 15. The gear disk 15 is connected to the rack 16. The guiding base 01 is fixed to the workbench through the fixing plate 37, which limits the guiding direction of the guiding block 02, enables the guiding block 02 to maintain linear stretching, prevents the stretching direction of the PTEE from deviating, and at the same time, the rack 16 inside the guiding base 01 is meshed and connected with the gear disk 15, and by braking the gear disk 15, the stretching of the PTEE film is maintained, facilitating the observation and recording of its stretching test data. The guiding block 02 is provided with a fixed clamping plate 14, the fixed clamping plate 14 is connected to a lower anti-slip rubber pad 10, the upper part of the fixed clamping plate 14 is connected to the movable clamping plate 13, and the movable clamping plate 13 is connected to an upper anti-slip rubber pad 09. The fixed clamping plate 14 is provided with connecting ears 06, the movable clamping plate 13 is provided with connecting blocks 07, and the connecting blocks 07 are connected to the connecting ears 06 through movable shaft rods 08. The movable shaft rods 08 are sequentially connected to the connecting ears 06 and the connecting blocks 07, and the connecting blocks 07 rotate on the movable shaft rods 08. Both sides of the fixed clamping plate 14 are provided with fixed grooves 12, and both sides of the movable clamping plate 13 are provided with fixed protrusions 11, which are adapted to the fixed grooves 12. The fixed protrusions 11 are connected to the fixed grooves 12, and the movable clamping plate 13 and the fixed clamping plate 14 are movably linked, which is convenient for opening and closing, improves the disassembly, assembly and fixing efficiency of the PTEE film, and is convenient for single-pull guiding, enables the PTEE film to maintain linear stretching, prevents the stretching direction of the PTEE film from deviating, and improves the accuracy of single-pull test data.

[0026] Example 2:

[0027] The upper part of the guiding block 02 of the utility model is provided with a limiting support sleeve 28. The position control shaft rod 22 sequentially passes through the guiding block 02, the gear disc 15, the limiting support sleeve 28, and the spring strip 27. The upper end of the position control shaft rod 22 is connected to the control panel 26. The lower end of the position control shaft rod 22 is provided with a plurality of baffles 36. The baffles 36 are attached to the guiding block 02. The guiding block 02 is provided with a plurality of lock rod perforations 21. The upper part of the baffle 36 is provided with a lock rod 19. The gear disc 15 is provided with a plurality of lock grooves 20. The lock grooves 20, the lock rod perforations 21, and the lock rod 19 are adapted to each other. The lock rod 19 passes through the lock rod perforation 21. The lock rod 19 is connected to the lock groove 20. After the PTFE film is made into a finished product, it needs to be subjected to a single tensile test to determine whether it meets the production requirements. During the test, one end of the PTEE film is wound and fixed by a winding roller first, while the other end of the PTEE film is placed on the upper part of the fixed clamping plate 14 at the front end of the guiding block 02, and is pressed and fixed by buckling the movable clamping plate 13. Upper anti-slip rubber pads 09 and lower anti-slip rubber pads 10 are respectively arranged on the inner sides of the movable clamping plate 13 and the fixed clamping plate 14. Both the upper and lower anti-slip rubber pads are made of rubber, which can increase the frictional resistance between the clamping plate and the PTEE film contact surface, strengthen the fixing firmness of the PTEE film, and prevent it from detaching during the single tensile test. Then, by pressing down the control panel 26, the two side position control shaft rods 22 are pushed down until the lock rod 19 is completely separated from between the gear disc 15. At this time, the positioning fulcrum of the position control shaft rod 22 on the gear disc 15 disappears, and while pressing down the control panel 26, it is pushed, causing the guiding block 02 to drive one end of the PTEE film to perform a linear stretching displacement in the guiding seat 01 for unit test detection. When the pressure on the control panel 26 disappears, the control panel 26 is pushed by the elastic tension of the spring strip 27 itself, driving the two side position control shaft rods 22 to move upward and reset to the position where the lock rod 19 is inserted into the lock groove 20 to brake and lock the gear disc 15, so as to freeze and hold the single tensile data of the PTEE film, facilitate the recording of test data, prevent the PTEE from moving back, causing data errors, and improve the accuracy of the single tensile test data of the PTEE film.

[0028] Embodiment 3:

[0029] The limiting support sleeve 28 of the utility model is connected to the lower end of the spring strip 27. The upper end of the spring strip 27 is connected to the control panel 26. The outside of the limiting support sleeve 28 is connected to a limiting snap ring 29. The inner side of the limiting snap ring 29 is provided with a limiting clamping plate 30. Both sides of the limiting support sleeve 28 are provided with clamping plate perforations 32. Both sides of the position control shaft rod 22 are provided with limiting card slots 31. The limiting card slots 31, the clamping plate perforations 32, and the limiting clamping plate 30 are adapted to each other. The limiting clamping plate 30 passes through the clamping plate perforation 32. The limiting clamping plate 30 is connected to the limiting card slot 31. The limiting clamping plate 30 slides in the limiting card slot 31.

[0030] Embodiment 4:

[0031] The limit snap ring 29 of the present utility model is divided into an outer limit snap ring 291 and an inner limit snap ring 292. The outer limit snap ring 291 is connected to the inner limit snap ring 292. There are mounting bumps 33 on both sides of the outer limit snap ring 291, and mounting grooves 34 on both sides of the inner limit snap ring 292. The mounting bumps 33 are adapted to the mounting grooves 34, and the mounting bumps 33 are connected to the mounting grooves 34. There is a support plate 25 outside the outer limit snap ring 291. The support plate 25 has a reading port 04 and a reading arrow 05. The two-sided limit snap rings 29 are oppositely buckled and fixed outside the limit support sleeve 28. The limit clamping plates 30 on the inner side thereof increase the connection fulcrum between the limit support sleeve 28 and the control position shaft rod 22, and at the same time limit the position of the control position shaft rod 22 to keep its longitudinal linear displacement and prevent it from rotating, resulting in misalignment between the lock rod 19 and the lock groove 20, improving the structural stability. Moreover, the reading port 04 of the outer limit snap ring 291 cooperates with the scale line 03, which is convenient for controlling and observing the single-pull length of the PTEE.

[0032] Embodiment 5:

[0033] The support plate 25 of the present utility model is connected to the roller 24 through a central shaft rod 35. The central shaft rod 35 is successively connected to the support plate 25 and the roller 24. The support plate 25 is attached to the guide seat 01. There is a sliding groove 23 on the outside of the guide seat 01. The sliding groove 23 is adapted to the roller 24, and the roller 24 is connected to the sliding groove 23. The roller 24 slides in the sliding groove 23. This device guides the single pull of the PTEE film, keeps the PTEE film in linear stretching, prevents the stretching direction of the PTEE film from deviating, improves the accuracy of the single-pull test data, and at the same time, the fixing, disassembly and single-pull test process of the PTEE film are convenient to operate, improving the detection operation efficiency, and by maintaining the single pull of the PTEE film, it is convenient to control and observe the single-pull length of the PTEE and record data.

[0034] Embodiment 6:

[0035] Installation steps: First, assemble the structure of the guide block 02. First, insert the gear disc 15 into the placement groove 17 and place it into the guide block 02, and make the positions of the locking groove 20 and the locking rod perforation 21 correspond. Then, pass the position control shaft rod 22 through the guide block 02, the gear disc 15, the limit support sleeve 28, and the spring strip 27 from bottom to top until the upper surface of the baffle 36 fits against the guide block 02. Pass the locking rod 19 through the locking rod perforation 21 and embed it into the locking groove 20, and make the positions of the limit card slot 31 and the card plate perforation 32 correspond. Then, install and fix the control board 26 on the upper part of the position control shaft rod 22, and press the lower surface of the control board 26 against the upper end of the spring strip 27, and press the lower end of the spring strip 27 against the upper surface of the limit support sleeve 28. Finally, place the movable clamping plate 13 above the fixed clamping plate 14 and connect them through the movable shaft rod 08. After completing the assembly of the guide block 02 structure, place the guide seat 01 on both sides of the guide block 02, and make the outer surface of the guide block 02 fit against the inner surface of the guide seat 01. The gear disc 15 and the rack 16 are meshed and connected. Finally, place the limit retaining ring 29 outside the limit support sleeve 28, and the two limit retaining rings 29 are oppositely buckled and fixedly connected. The limit card plate 30 passes through the card plate perforation 32 and is embedded in the limit card slot 31. The installation bump 33 is embedded in the installation groove 34. The inner surface of the support plate 25 fits against the outer surface of the guide seat 01. The roller 24 is embedded in the chute 23 to complete the installation.

[0036] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A PTFE membrane with a single pull guide structure, characterized in that : It comprises a guide seat (01), a guide block (02), a movable splint (13), a gear plate (15), a control shaft (22), a control plate (26), and a limit buckle (29), wherein the guide block (02) has placement grooves (17) on both sides, the placement grooves (17) are adapted to the gear plate (15), the gear plate (15) is connected to the placement grooves (17), the gear plate (15) is externally fitted with the guide block (02), the guide block (02) is externally fitted with the guide seat (01), the guide seat (01) has a fixing plate (37) at the bottom, the fixing plate (37) is connected to the workbench, the guide seat (01) has a scale line (03) at the top, the guide seat (01) has a rack (16) on the inside, the rack (16) is meshed with the gear plate (15), the gear plate (15) is connected to the rack (16), the guide block (02) The invention comprises a fixed splint (14), the fixed splint (14) being connected to a lower anti-skid rubber pad (10), the upper part of the fixed splint (14) being connected to a movable splint (13), the movable splint (13) being connected to an upper anti-skid rubber pad (09), the fixed splint (14) having a connecting ear (06), the movable splint (13) having a connecting block (07), the connecting block (07) being connected to the connecting ear (06) via a movable shaft (08), the movable shaft (08) being connected to the connecting ear (06) and the connecting block (07) in sequence, the connecting block (07) rotating on the movable shaft (08), the fixed splint (14) having fixed grooves (12) on both sides, the movable splint (13) having fixed protrusions (11) on both sides, the fixed protrusions (11) being adapted to the fixed grooves (12), and the fixed protrusions (11) being connected to the fixed grooves (12).

2. The PTFE membrane with a single-pull guide structure according to claim 1, characterized in that The guide block (02) has a limit support sleeve (28) on its upper part, the control shaft (22) passes through the guide block (02), the gear plate (15), the limit support sleeve (28), and the spring strip (27) in sequence, the upper end of the control shaft (22) is connected to the control panel (26), the lower end of the control shaft (22) has a plurality of baffles (36), the baffles (36) fit the guide block (02), the guide block (02) has a plurality of locking rod through holes (21), the upper part of the baffle (36) has a locking rod (19), the gear plate (15) has a plurality of locking grooves (20), the locking grooves (20) and the locking rod through holes (21) are adapted to the locking rod (19), the locking rod (19) passes through the locking rod through holes (21), and the locking rod (19) is connected to the locking grooves (20).

3. The PTFE membrane with a single-pull guide structure according to claim 2, characterized in that The limit support sleeve (28) is connected to the lower end of the spring bar (27), the upper end of the spring bar (27) is connected to the control panel (26), the limit support sleeve (28) is externally connected to the limit buckle (29), the limit buckle (29) has a limit card plate (30) on the inner side, the limit support sleeve (28) has card plate through holes (32) on both sides, the control shaft rod (22) has limit card slots (31) on both sides, the limit card slots (31) and the card plate through holes (32) are adapted to the limit card plate (30), the limit card plate (30) passes through the card plate through holes (32), the limit card plate (30) is connected to the limit card slot (31), and the limit card plate (30) slides in the limit card slot (31).

4. The PTFE membrane with a single-pull guide structure according to claim 3, characterized in that The limit buckle (29) is divided into an outer limit buckle (291) and an inner limit buckle (292), the outer limit buckle (291) is connected to the inner limit buckle (292), the outer limit buckle (291) has mounting protrusions (33) on both sides, the inner limit buckle (292) has mounting grooves (34) on both sides, the mounting protrusions (33) are adapted to the mounting grooves (34), the mounting protrusions (33) are connected to the mounting grooves (34), the outer limit buckle (291) has a support plate (25) on the outside, the support plate (25) has a reading port (04), and the support plate (25) has a reading arrow (05).

5. The PTFE membrane with a single-pull guide structure according to claim 4, characterized in that The support plate (25) is connected to the roller (24) via a central shaft (35), the central shaft (35) is connected to the support plate (25) and the roller (24) in sequence, the support plate (25) is fitted to the guide seat (01), the guide seat (01) has a slide groove (23) on the outside, the slide groove (23) is adapted to the roller (24), the roller (24) is connected to the slide groove (23), and the roller (24) slides in the slide groove (23).

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