A positioning device for polytetrafluoroethylene sheets

Abstract

The utility model provides a kind of positioning device of polytetrafluoroethylene board. The positioning device of polytetrafluoroethylene board is used to be installed on saw bench, comprising: pressing structure, the saw bench surface is opened with saw groove, the saw bench surface is opened with two before and after distribution guide groove in the left side of the saw groove, the inside sliding connection of the guide groove has connecting piece, the bottom of two the connecting piece is equipped with adjusting structure, the top of two the connecting piece is fixedly connected with movable positioning block, the pressing structure is installed in the surface of movable positioning block, the pressing structure includes guide rail, the guide rail is located in the left side of movable positioning block and guide rail bottom and two connecting piece between fixed connection, the positioning device of polytetrafluoroethylene board provided by the utility model has the advantage that user can quickly complete positioning block position adjustment, and board can be stably fixed simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of polytetrafluoroethylene (PTFE), and more particularly to a positioning device for PTFE sheets. Background Technology

[0002] Polytetrafluoroethylene (PTFE) sheets, commonly known as "King of Plastics," are made from PTFE resin through molding, extrusion, and other processes. They possess characteristics such as resistance to strong acids and alkalis, resistance to high and low temperatures (-269℃~260℃), low coefficient of friction, strong non-stick properties, and excellent insulation. They have a smooth surface and stable molding properties. Widely used in chemical corrosion protection, food processing equipment, aerospace, and other fields, they are high-performance corrosion-resistant and weather-resistant materials.

[0003] Currently, when cutting polytetrafluoroethylene (PTFE) sheets, a saw is usually used. The user places one end of the sheet against the positioning block and then starts the cutting saw to cut the sheet. The traditional structure makes it inconvenient for the user to flexibly and quickly adjust the position of the positioning block according to the specifications of the sheet to be cut. In addition, some sheet sizes are quite long, and the surface of unfilled pure PTFE sheets is often smooth and flat with a low coefficient of friction. This can cause the PTFE sheet to be not effectively positioned during the cutting process, which may lead to positional displacement and cutting errors.

[0004] Therefore, it is necessary to provide a new positioning device for polytetrafluoroethylene sheets to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a positioning device for polytetrafluoroethylene (PTFE) sheets that allows users to quickly adjust the position of the positioning blocks while stably fixing the sheet material.

[0006] To solve the above-mentioned technical problems, this utility model provides a positioning device for polytetrafluoroethylene sheet, which is used to install on a saw table, including: a clamping structure, a saw groove is formed on the surface of the saw table, two guide grooves are formed on the left side of the saw table surface distributed front and back, a connector is slidably connected inside the guide groove, an adjustment structure is installed at the bottom of the two connectors, a movable positioning block is fixedly connected to the top of the two connectors, and the clamping structure is installed on the surface of the movable positioning block;

[0007] The clamping structure includes a guide rail located to the left of the movable positioning block, with its bottom fixedly connected to two connecting parts. Several sliders arranged in a front-to-back pattern are slidably connected to the surface of the guide rail. Supporting parts are fixedly connected to the top front and rear edges of each slider. A fixing part is fixedly connected between the tops of two supporting parts. Symmetrical through holes are provided on the surface of the fixing part, and movable rods pass through the through holes with a transition fit. Mounting parts are fixedly connected to the ends of the two movable rods facing the saw groove. An electric telescopic rod is fixedly connected to the top of the mounting part, and the telescopic end of the electric telescopic rod passes through the top of the mounting part and is fixedly connected to a pressure plate.

[0008] As a further embodiment of this utility model, a second set screw is threadedly connected to the top surface of the slider located between the two support members, and a first set screw is threadedly connected to the top surface of the fixing member located above the through hole. The bottom end of the first set screw abuts against the outer peripheral surface of the movable rod on the adjacent side, and the bottom end of the second set screw abuts against the top surface of the guide rail.

[0009] Through the above technical solution, in this device, when cutting larger and longer polytetrafluoroethylene (PTFE) sheets, one end of the sheet abuts against the movable positioning block, and the adjacent end abuts against positioning block one and positioning block two. Then, several electric telescopic rods are activated to drive the pressure plate down a specified distance to fix the sheet. Anti-slip pads are adhered to the bottom of the pressure plate to increase the friction between it and the surface of the sheet, thus eliminating the need for manual operation. This makes it less likely for the sheet to make cutting errors caused by positional displacement when the circular saw on the saw table is cutting. The number and position of the sliders installed on the guide rail can also be adjusted according to the length of the sheet. The left and right positions of the pressure plate on the sheet can be achieved by the cooperation between the movable rod and the fixing part. This structural design can fix the PTFE sheet, and the number and position of the fixing pressure plates can be flexibly adjusted according to the specifications of the sheet to be cut. The structural design is user-friendly and easy to use.

[0010] As a further embodiment of this utility model, an anti-slip pad is adhered to the bottom surface of the pressure plate, and a limiting circular plate is fixedly connected to the end of each of the two movable rods away from the mounting component.

[0011] By fixing a limiting circular plate at the end of the movable rod, the movable rod can be prevented from coming out of the through hole, and the structural design is reasonable.

[0012] As a further embodiment of this utility model, positioning component one and positioning component two are fixedly connected to the top surfaces of the saw table on the left and right sides of the saw groove, respectively, and one end of the movable positioning block abuts against the surface of positioning component one.

[0013] The above technical solution, through the cooperation of positioning component one, positioning component two, and movable positioning block, can locate two adjacent sides of the board.

[0014] As a further embodiment of this utility model, a scale is fixedly connected to the top of the first positioning component, and an indicator needle is fixedly connected to one end of the movable positioning block facing the first positioning component, with the end of the indicator needle located above the scale.

[0015] Through the above technical solution, the indicator needle is used to display the distance between the right end face of the movable positioning block and the saw groove, and the saw groove is used to set up a circular saw that can slide back and forth along the saw groove.

[0016] As a further embodiment of this utility model, the adjustment structure includes ear plates, two of which are arranged left and right. Both ear plates are fixedly connected to the bottom surface of the saw table. A threaded rod is rotatably connected between the two ear plates. The threaded rod is located between two guide grooves. A threaded sleeve is threadedly connected to the surface of the threaded rod. The bottom end of the connector is fixedly connected to the outer circumferential surface of the threaded sleeve. A rotating wheel is fixedly connected to one end of the threaded rod. The rotating wheel is located on the left side of the saw table.

[0017] Through the above technical solution, in this device, the user can adjust the distance between the movable positioning block and the saw groove according to the cutting length of the plate. During operation, one side of the rotating wheel is rotated. At this time, the rotating wheel drives the threaded rod to rotate, and then drives the connecting part and the movable positioning block at the end of the connecting part to move horizontally on the saw table through the threaded sleeve connected to it. During this process, the user can observe the position of the indicator needle at the end of the movable positioning block on the scale, so as to judge whether the distance adjustment meets the requirements. This design is convenient for the user to observe, and can simultaneously adjust the position of the movable positioning block and the clamping structure. The structure is easy to operate.

[0018] Compared with related technologies, the positioning device for polytetrafluoroethylene sheets provided by this utility model has the following advantages:

[0019] 1. In this utility model, when cutting a large and long polytetrafluoroethylene (PTFE) sheet, one end of the sheet is abutted against the movable positioning block, and the adjacent end is abutted against positioning block one and positioning block two. Then, several electric telescopic rods are activated to drive the pressure plate down a specified distance to fix the sheet. An anti-slip pad is adhered to the bottom of the pressure plate to increase the friction between it and the surface of the sheet, so that no manual operation is required. This makes it less likely for the sheet to make cutting errors caused by positional displacement when the circular saw on the saw table is cutting. The number and position of the sliders installed on the guide rail can be adjusted according to the length of the sheet. The left and right positions of the pressure plate on the sheet can be achieved by the cooperation between the movable rod and the fixing part. This structural design can fix the PTFE sheet, and the number and position of the pressure plates used for fixing can be flexibly adjusted according to the specifications of the sheet to be cut. The structural design is user-friendly and easy to use.

[0020] 2. In this utility model, the user can adjust the distance between the movable positioning block and the saw groove according to the cutting length of the plate. During operation, one side of the rotating wheel is rotated. At this time, the rotating wheel drives the threaded rod to rotate, and then drives the connecting part and the movable positioning block at the end of the connecting part to move horizontally on the saw table through the threaded sleeve connected to it. During this process, the user can observe the position of the indicator needle at the end of the movable positioning block on the scale to judge whether the distance adjustment meets the requirements. This design is convenient for the user to observe, and can simultaneously adjust the position of the movable positioning block and the clamping structure. The structure is easy to operate. Attached Figure Description

[0021] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of a positioning device for polytetrafluoroethylene sheet in this utility model.

[0023] Figure 2 This is a partial structural diagram of a positioning device for polytetrafluoroethylene sheets according to the present invention. Figure 1 ;

[0024] Figure 3 This is a partial structural disassembly diagram of a positioning device for polytetrafluoroethylene sheets according to the present invention.

[0025] Figure 4 This is a partial structural diagram of a positioning device for polytetrafluoroethylene sheets according to the present invention. Figure 2 .

[0026] Explanation of key symbols:

[0027] 1. Saw table; 2. Saw groove; 3. Positioning component one; 4. Positioning component two; 5. Adjustment structure; 6. Clamping structure; 7. Movable positioning block; 8. Scale; 9. Indicator needle; 10. Rotary wheel; 11. Guide groove; 12. Connecting component; 13. Electric telescopic rod; 14. Mounting component; 15. Pressure plate; 16. Fixing component; 17. Set screw one; 18. Movable rod; 19. Support component; 20. Slider; 21. Set screw two; 22. Ear plate; 23. Threaded rod; 24. Threaded sleeve; 25. Guide rail. Detailed Implementation

[0028] Please combine Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of a positioning device for polytetrafluoroethylene sheet in this utility model. Figure 2 This is a partial structural diagram of a positioning device for polytetrafluoroethylene sheets according to the present invention. Figure 1 ; Figure 3 This is a partial structural disassembly diagram of a positioning device for polytetrafluoroethylene sheets according to the present invention. Figure 4 This is a partial structural diagram of a positioning device for polytetrafluoroethylene sheets according to the present invention. Figure 2 A positioning device for polytetrafluoroethylene sheet, for mounting on a saw table 1, comprising:

[0029] The clamping structure 6 has a saw groove 2 on the surface of the saw table 1. Two guide grooves 11 are provided on the surface of the saw table 1 located to the left of the saw groove 2. Connecting parts 12 are slidably connected inside the guide grooves 11. Adjustment structure 5 is installed at the bottom of the two connecting parts 12. Movable positioning block 7 is fixedly connected to the top of the two connecting parts 12. The clamping structure 6 is installed on the surface of the movable positioning block 7.

[0030] The clamping structure 6 includes a guide rail 25, which is located on the left side of the movable positioning block 7 and is fixedly connected to two connecting parts 12 at its bottom. Several sliders 20 are slidably connected to the surface of the guide rail 25 and are distributed in a front-to-back manner. Supporting parts 19 are fixedly connected to the top front and rear edges of the top of the sliders 20. A fixing part 16 is fixedly connected between the tops of the two supporting parts 19. The fixing part 16 has through holes symmetrically opened on its surface. A movable rod 18 passes through the through hole and is transitionally fitted with the through hole. An installation part 14 is fixedly connected to one end of the two movable rods 18 facing the saw groove 2. An electric telescopic rod 13 is fixedly connected to the top of the installation part 14. The telescopic end of the electric telescopic rod 13 passes through the top of the installation part 14 and is fixedly connected to a pressure plate 15.

[0031] like Figure 1-4As shown, the top surface of the slider 20 located between the two support members 19 is threaded with a second set screw 21, and the top surface of the fixing member 16 located above the through hole is threaded with a first set screw 17. The bottom end of the first set screw 17 abuts against the outer peripheral surface of the movable rod 18 on the adjacent side, and the bottom end of the second set screw 21 abuts against the top surface of the guide rail 25.

[0032] In this device, when cutting larger and longer PTFE sheets, one end of the sheet abuts against the movable positioning block 7, and the adjacent end abuts against positioning blocks one and two. Then, several electric telescopic rods 13 are activated to drive the pressure plate 15 down a specified distance to fix the sheet. Anti-slip pads are adhered to the bottom of the pressure plate 15 to increase the friction between it and the surface of the sheet, thus eliminating the need for manual operation. This prevents the sheet from making cutting errors caused by positional displacement when the circular saw on the saw table 1 is cutting. The number and position of the sliders 20 installed on the guide rail 25 can be adjusted according to the length of the sheet. The left and right positions of the pressure plate 15 on the sheet can be achieved by the cooperation between the movable rod 18 and the fixing part 16. This structural design can fix the PTFE sheet, and the number and position of the pressure plates 15 used for fixing can be flexibly adjusted according to the specifications of the sheet to be cut. The structural design is user-friendly and easy to use.

[0033] like Figure 1-4 As shown, an anti-slip pad is adhered to the bottom surface of the pressure plate 15, and a limit plate is fixedly connected to the end of each of the two movable rods 18 away from the mounting part 14.

[0034] A limiting circular plate is fixed at the end of the movable rod 18 to prevent the movable rod 18 from coming out of the through hole, which is a reasonable structural design.

[0035] like Figure 1-4 As shown, positioning component 1 and positioning component 2 are fixedly connected to the top surface of the saw table 1 located on the left and right sides of the saw groove 2, respectively, and one end of the movable positioning block 7 abuts against the surface of positioning component 3.

[0036] By cooperating with positioning component 3, positioning component 4, and movable positioning block 7, the two adjacent sides of the board can be positioned.

[0037] like Figure 1-4 As shown, a scale 8 is fixedly connected to the top of the positioning component 3, and an indicator needle 9 is fixedly connected to one end of the movable positioning block 7 facing the positioning component 3. The end of the indicator needle 9 is located on the upper side of the scale 8.

[0038] The function of the indicator needle 9 is to show the distance between the right end face of the movable positioning block 7 and the saw groove 2. The saw groove 2 is used to set up a circular saw that can slide back and forth along the saw groove 2.

[0039] like Figure 1-4As shown, the adjustment structure 5 includes two ear plates 22, which are arranged on the left and right sides. Both ear plates 22 are fixedly connected to the bottom surface of the saw table 1. A threaded rod 23 is rotatably connected between the two ear plates 22. The threaded rod 23 is located between two guide grooves 11. A threaded sleeve 24 is threadedly connected to the surface of the threaded rod 23. The bottom end of the connector 12 is fixedly connected to the outer circumferential surface of the threaded sleeve 24. A rotating wheel 10 is fixedly connected to one end of the threaded rod 23. The rotating wheel 10 is located on the left side of the saw table 1.

[0040] In this device, the user can adjust the distance between the movable positioning block 7 and the saw groove 2 according to the cutting length of the plate. During operation, one side of the rotating wheel 10 is rotated. At this time, the rotating wheel 10 drives the threaded rod 23 to rotate, which in turn drives the connecting piece 12 and the movable positioning block 7 at the end of the connecting piece 12 to move horizontally on the saw table 1 through the threaded sleeve 24 connected to it. During this process, the user can observe the position of the indicator needle 9 at the end of the movable positioning block 7 on the scale 8, so as to determine whether the distance adjustment meets the requirements. This design is convenient for the user to observe, and can simultaneously adjust the position of the movable positioning block 7 and the clamping structure 6. The structure is easy to operate.

[0041] The working principle of the positioning device for polytetrafluoroethylene sheets provided by this utility model is as follows:

[0042] First step: In this device, when cutting larger and longer polytetrafluoroethylene (PTFE) sheets, one end of the sheet is placed against the movable positioning block 7, and the adjacent end is placed against positioning block one and positioning block two. Then, several electric telescopic rods 13 are activated to drive the pressure plate 15 down a specified distance to fix the sheet. The pressure plate 15 is attached to the bottom with an anti-slip pad, which increases the friction between it and the surface of the sheet, so that no manual operation is required. This makes it less likely for the sheet to make cutting errors caused by positional displacement when the circular saw on the saw table 1 is cutting. The number and position of the sliders 20 installed on the guide rail 25 can be adjusted according to the length of the sheet. The left and right positions of the pressure plate 15 on the sheet can be achieved by the cooperation between the movable rod 18 and the fixing part 16. This structural design can fix the PTFE sheet, and the number and position of the pressure plate 15 used for fixing can be flexibly adjusted according to the specifications of the sheet to be cut. The structural design is user-friendly and easy to use.

[0043] The second step: In this device, the user can adjust the distance between the movable positioning block 7 and the saw groove 2 according to the cutting length of the plate. During operation, one side of the rotating wheel 10 is rotated. At this time, the rotating wheel 10 drives the threaded rod 23 to rotate, and then drives the connecting piece 12 and the movable positioning block 7 at the end of the connecting piece 12 to move horizontally on the saw table 1 through the threaded sleeve 24 connected to it. During this process, the user can observe the position of the indicator needle 9 at the end of the movable positioning block 7 on the scale 8, so as to judge whether the distance adjustment meets the requirements. This design is convenient for the user to observe, and can simultaneously adjust the position of the movable positioning block 7 and the clamping structure 6. The structure is easy to operate.

[0044] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0045] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A positioning device for polytetrafluoroethylene (PTFE) sheets, characterized in that, For installation on a saw table (1), including a clamping structure (6), the saw table (1) has a saw groove (2) on its surface, and two guide grooves (11) distributed in a front-to-back manner are opened on the surface of the saw table (1) located to the left of the saw groove (2). A connector (12) is slidably connected inside the guide groove (11), and an adjustment structure (5) is installed at the bottom of the two connectors (12). A movable positioning block (7) is fixedly connected to the top of the two connectors (12), and the clamping structure (6) is installed on the surface of the movable positioning block (7). The clamping structure (6) includes a guide rail (25), which is located on the left side of the movable positioning block (7) and the bottom of the guide rail (25) is fixedly connected to two connecting parts (12). Several sliders (20) distributed in front and back are slidably connected to the surface of the guide rail (25). Supports (19) are fixedly connected to the top front and back edges of the sliders (20). A fixing part (16) is fixedly connected between the tops of the two support parts (19). The surface of the fixing part (16) is symmetrically provided with through holes. A movable rod (18) passes through the inside of the through hole and there is a transition fit between the movable rod (18) and the through hole. An installation part (14) is fixedly connected to one end of the two movable rods (18) facing the saw groove (2). An electric telescopic rod (13) is fixedly connected to the top of the installation part (14). The telescopic end of the electric telescopic rod (13) passes through the top of the installation part (14) and is fixedly connected to a pressure plate (15).

2. The positioning device for polytetrafluoroethylene sheets as described in claim 1, characterized in that, The top surface of the slider (20) located between the two supports (19) is threaded with a second set screw (21), and the top surface of the fixing member (16) located above the through hole is threaded with a first set screw (17). The bottom end of the first set screw (17) abuts against the outer circumferential surface of the movable rod (18) on the adjacent side, and the bottom end of the second set screw (21) abuts against the top surface of the guide rail (25).

3. The positioning device for polytetrafluoroethylene sheets as described in claim 2, characterized in that, The bottom surface of the pressure plate (15) is bonded with an anti-slip pad, and the ends of the two movable rods (18) away from the mounting part (14) are fixedly connected with a limiting circular plate.

4. The positioning device for polytetrafluoroethylene sheets as described in claim 3, characterized in that, Positioning component one (3) and positioning component two (4) are fixedly connected to the top surfaces of the saw table (1) located on the left and right sides of the saw groove (2), and one end of the movable positioning block (7) abuts against the surface of positioning component one (3).

5. The positioning device for polytetrafluoroethylene sheets as described in claim 4, characterized in that, A scale (8) is fixedly connected to the top of the positioning component (3), and an indicator needle (9) is fixedly connected to one end of the movable positioning block (7) facing the positioning component (3). The end of the indicator needle (9) is located on the upper side of the scale (8).

6. The positioning device for polytetrafluoroethylene sheets as described in claim 5, characterized in that, The adjustment structure (5) includes two ear plates (22) arranged in a left-right distribution. Both ear plates (22) are fixedly connected to the bottom surface of the saw table (1). A threaded rod (23) is rotatably connected between the two ear plates (22). The threaded rod (23) is located between two guide grooves (11). A threaded sleeve (24) is threadedly connected to the surface of the threaded rod (23). The bottom end of the connector (12) is fixedly connected to the outer circumferential surface of the threaded sleeve (24). A rotating wheel (10) is fixedly connected to one end of the threaded rod (23). The rotating wheel (10) is located on the left side of the saw table (1).

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