Detection equipment for polytetrafluoroethylene coating
By designing a testing device that includes a tensile testing machine, an operating table, and a clamping mechanism, the problem of coating cracking and loosening when testing polytetrafluoroethylene coatings was solved, thus achieving the accuracy of test data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-03-20
AI Technical Summary
Existing tensile testing equipment, when testing polytetrafluoroethylene coatings, often uses adhesive bonding methods, which can easily cause the coating to crack and loosen during the tensile process, resulting in inaccurate test data.
A testing device was designed, comprising a tensile testing machine, an operating table, a fixed box, and a clamping mechanism. The coating material is fixed by mechanical clamping, and stable clamping is achieved by using components such as screws, gears, synchronous gears, and clamping blocks, avoiding cracking caused by adhesive bonding.
It achieves stable clamping of the coating during the stretching process, ensuring the accuracy of test data and avoiding test errors caused by the bonding method.
Smart Images
Figure CN224019474U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polytetrafluoroethylene coating testing technology, specifically to a testing device for polytetrafluoroethylene coatings. Background Technology
[0002] Polytetrafluoroethylene (PTFE) coating is a coating material with PTFE as the main component. PTFE is a high molecular polymer that is polymerized from tetrafluoroethylene monomers. In its chemical structure, carbon atoms and fluorine atoms are closely linked, and fluorine atoms cover almost the entire polymer chain, forming a highly stable chemical structure.
[0003] Tensile testing equipment is used to directly measure the adhesion between the coating and the substrate. A special tensile head is bonded to the coating surface, and then the coating is pulled vertically upward at a certain speed through a tensile testing instrument. The tensile force value when the coating detaches from the substrate is recorded. This method can more accurately quantify the adhesion of the coating. Existing tensile testing equipment uses an adhesive method to test polytetrafluoroethylene coatings, which is prone to cracking and loosening during the pulling process, resulting in inaccurate test data.
[0004] Therefore, it is necessary to redesign and modify the tensile testing equipment to effectively prevent the use of adhesive bonding in testing polytetrafluoroethylene coatings, which can easily lead to cracking and loosening during the tensile process, resulting in inaccurate test data. Utility Model Content
[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a testing device for polytetrafluoroethylene (PTFE) coatings, which has the advantage of mechanical clamping and fixing, and solves the problem that tensile testing devices using adhesive bonding to test PTFE coatings are prone to cracking and loosening during the pulling process, resulting in inaccurate test data.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a testing device for polytetrafluoroethylene coatings, comprising;
[0007] Tensile testing machine;
[0008] The top of the tensile testing machine is fixedly connected to an operating platform, and the top of the operating platform is fixedly connected to a fixed box. The left and right sides of the inner wall of the fixed box are movably connected to clamping mechanisms through bearing seats.
[0009] The clamping mechanism comprises a screw rod, a gear, a rotating handle, a synchronous gear, a sleeve plate, a connecting block, a connecting plate and a clamping block, the left side and the right side of the inner wall of the fixing box are movably connected with the screw rod through bearing seats, the inner side of the screw rod is fixedly connected with the gear, the front end of the fixing box is movably connected with the rotating handle, the back end of the rotating handle penetrates into the inside of the fixing box and is fixedly connected with the synchronous gear, the left side and the right side of the back end of the synchronous gear are meshingly connected with the front end of the gear, the surface of the screw rod movably sleeves the sleeve plate, the front end and the back end of the top of the sleeve plate are fixedly connected with the connecting block, the top of the connecting block is fixedly connected with the connecting plate, the inner side of the connecting plate is fixedly connected with the clamping block, the top of the clamping block penetrates through the top of the fixing box, and the front end and the back end of the connecting plate are fixedly connected with the positioning mechanism.
[0010] As preferred in the utility model, the positioning mechanism comprises a fixing block, a horizontal plate, a U-shaped push block, a clamping block and a spring, the front end and the back end of the connecting plate are fixedly connected with the fixing block, the front end and the back end of the left side of the inner wall of the fixing box are fixedly connected with the horizontal plate, the right side of the horizontal plate penetrates through the right side of the fixing block and is fixedly connected with the right side of the inner wall of the fixing box, the top and the bottom of the right side of the fixing block and penetrating into the inside of the horizontal plate are fixedly connected with the U-shaped push block, the top and the bottom of the horizontal plate are movably connected with the clamping block, the left side and the right side of the inner cavity of the horizontal plate and corresponding the positions of the clamping block are longitudinally fixedly connected with the spring, and the top and the bottom of the spring are fixedly connected with the inner side of the clamping block.
[0011] As preferred in the utility model, the top and the bottom of the surface of the horizontal plate are provided with a sliding groove, and the sliding groove is used in cooperation with the U-shaped push block.
[0012] As preferred in the utility model, the left side of the clamping block is provided with an oblique groove, and the oblique groove is used in cooperation with the U-shaped push block.
[0013] As preferred in the utility model, the left side and the right side of the surface of the rotating handle are fixedly connected with an anti-skid block, the number of the anti-skid blocks is several, and the anti-skid blocks are evenly distributed.
[0014] As preferred in the utility model, the inner side of the clamping block is fixedly connected with a rubber pad, and the rubber pad is used in cooperation with the clamping block.
[0015] Compared with the prior art, the utility model has the beneficial effects as follows:
[0016] 1、Through the setting of the clamping mechanism, the rotating handle can be manually rotated, the rotating handle rotation drives the synchronous gear to rotate, the synchronous gear rotation makes the gear rotate in one direction and reverse in the other direction, the gear rotation drives the screw rod to rotate, the screw rod rotation makes the sleeve plate close to the inside along the thread direction, the sleeve plate close to the inside drives the connecting block and the connecting plate to move, and finally the connecting plate close to the inside drives the clamping block to close to the inside to clamp and fix the material. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a structural schematic view of the utility model;
[0018] Figure 2 is the utility model Figure 1 is a fixed box structure perspective view;
[0019] Figure 3 is the utility model Figure 2 is a screw, gear and handle structure perspective view;
[0020] Figure 4 is the utility model Figure 2 is a horizontal plate structure perspective view;
[0021] Figure 5 is the utility model Figure 2 is a fixed block, horizontal plate and U-shaped push block structure perspective view.
[0022] In the figure: 1, tensile testing machine; 2, operation table; 3, fixed box; 4, clamping mechanism; 41, screw; 42, gear; 43, handle; 44, synchronous gear; 45, cover plate; 46, connecting block; 47, connecting plate; 48, clamping block; 5, positioning mechanism; 51, fixed block; 52, horizontal plate; 53, U-shaped push block; 54, clamping block; 55, spring; 6, sliding slot; 7, inclined groove; 8, anti-skid block; 9, rubber pad. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.
[0024] As Figures 1 to 5 shown, the utility model provides a kind of detection equipment for polytetrafluoroethylene coating, including;
[0025] Tensile testing machine 1;
[0026] Tensile testing machine 1 is fixedly connected with operation table 2 on top, and the top of operation table 2 is fixedly connected with fixed box 3, and the left side and the right side of the inner wall of fixed box 3 are both movably connected with clamping mechanism 4 by bearing seat;
[0027] The clamping mechanism 4 comprises a screw rod 41, a gear 42, a rotating handle 43, a synchronous gear 44, a sleeve plate 45, a connecting block 46, a connecting plate 47 and a clamping block 48, the left side and the right side of the inner wall of the fixed box 3 are movably connected with the screw rod 41 through bearing seats, the inner side of the screw rod 41 is fixedly connected with the gear 42, the front end of the fixed box 3 is movably connected with the rotating handle 43, the back end of the rotating handle 43 penetrates into the inside of the fixed box 3 and is fixedly connected with the synchronous gear 44, the left side and the right side of the back end of the synchronous gear 44 are meshingly connected with the front end of the gear 42, the surface of the screw rod 41 movably sleeves the sleeve plate 45, the front end and the back end of the top of the sleeve plate 45 are fixedly connected with the connecting block 46, the top of the connecting block 46 is fixedly connected with the connecting plate 47, the inner side of the connecting plate 47 is fixedly connected with the clamping block 48, the top of the clamping block 48 penetrates through the top of the fixed box 3, and the front end and the back end of the connecting plate 47 are fixedly connected with the positioning mechanism 5.
[0028] With reference to Figure 5 The positioning mechanism 5 comprises a fixed block 51, a horizontal plate 52, a U-shaped push block 53, a clamping block 54 and a spring 55, the front end and the back end of the connecting plate 47 are fixedly connected with the fixed block 51, the front end and the back end of the left side of the inner wall of the fixed box 3 are fixedly connected with the horizontal plate 52, the right side of the horizontal plate 52 penetrates through the right side of the fixed block 51 and is fixedly connected with the right side of the inner wall of the fixed box 3, the top and the bottom of the right side of the fixed block 51 penetrate into the inside of the horizontal plate 52 and are fixedly connected with the U-shaped push block 53, the top and the bottom of the horizontal plate 52 are movably connected with the clamping block 54, and the left side and the right side of the inner cavity of the horizontal plate 52 and the positions corresponding to the clamping block 54 are fixedly connected with the spring 55 in the longitudinal direction, and the top and the bottom of the spring 55 are fixedly connected with the inner side of the clamping block 54.
[0029] As a technical optimization scheme of the utility model, through the setting of the positioning mechanism 5, the fixed block 51 can move synchronously with the connecting plate 47, the fixed block 51 moves to drive the U-shaped push block 53 to move, the U-shaped push block 53 moves to contact one side of the clamping block 54 and extrude the clamping block 54 to move upwards, the clamping block 54 moves upwards to stretch the spring 55, and finally the clamping block 54 cannot move away from the horizontal plate 52 to limit the moving position of the U-shaped push block 53.
[0030] With reference to Figure 5 The top and the bottom of the surface of the horizontal plate 52 are provided with the sliding groove 6, and the sliding groove 6 is used in cooperation with the U-shaped push block 53.
[0031] As a technical optimization scheme of the utility model, through the setting of the sliding groove 6, the U-shaped push block 53 can move left and right in the sliding groove 6, and the sliding groove 6 plays a limiting role, so that the phenomenon that the U-shaped push block 53 deviates during movement is avoided.
[0032] With reference to Figure 4 The left side of the clamping block 54 is provided with the oblique recess 7, and the oblique recess 7 is used in cooperation with the U-shaped push block 53.
[0033] As a technical optimization scheme of the utility model, through the setting of the oblique groove 7, the U-shaped push block 53 can be assisted to work, and the limiting effect is achieved, avoiding the phenomenon of groove fracture caused by the contact between the U-shaped push block 53 and the plane on one side of the clamping block 54.
[0034] Reference Figure 2 The left side and the right side of the surface of the handlebar 43 are fixedly connected with anti-skid blocks 8, the number of the anti-skid blocks 8 is several, and the anti-skid blocks 8 are uniformly distributed.
[0035] As a technical optimization scheme of the utility model, through the setting of the anti-skid block 8, the handlebar 43 can be assisted to work, and the effect of increasing frictional resistance is achieved, avoiding the phenomenon of slipping and loosening of the handlebar 43 in the process of rotating by the user.
[0036] Reference Figure 3 The inner side of the clamping block 48 is fixedly connected with a rubber pad 9, and the rubber pad 9 is used in cooperation with the clamping block 48.
[0037] As a technical optimization scheme of the utility model, through the setting of the rubber pad 9, the clamping block 48 can be assisted to work, and the effect of protection is achieved, avoiding the phenomenon of abrasion and rupture caused by the direct contact of the clamping block 48 with the material.
[0038] The working principle and use process of the utility model are as follows: when in use, the sample of coating material is placed between the clamping blocks 48, and then the handlebar 43 is manually rotated clockwise, the handlebar 43 drives the synchronous gear 44 to rotate, the synchronous gear 44 drives the gear 42 to rotate in one direction and in the opposite direction, the gear 42 drives the screw rod 41 to rotate, the screw rod 41 rotates to drive the sleeve plate 45 to move inwards along the thread direction, the sleeve plate 45 moves inwards to drive the connecting block 46 and the connecting plate 47 to move synchronously, the connecting plate 47 moves inwards to drive the clamping block 48 to move inwards to clamp and mechanically fix the coating material, and the connecting plate 47 moves to drive the fixed block 51 to move, the fixed block 51 moves to drive the U-shaped push block 53 to stably move along the sliding groove 6 on the surface of the horizontal plate 52, when the U-shaped push block 53 moves to one side of the clamping block 54 to contact and press the clamping block 54 upward in cooperation with the oblique groove 7, the clamping block 54 moves upward to stretch the spring 55, and the clamping block 54 cannot move away from the horizontal plate 52 to limit the movement of the U-shaped push block 53, the position of the U-shaped push block 53 is fixed to fix the positions of the fixed block 51 and the connecting plate 47, the position of the connecting plate 47 is fixed to limit the movement of the connecting block 46 and the sleeve plate 45, and the phenomenon of collision and abrasion of the gear 42 cannot occur.
[0039] In conclusion: the polytetrafluoroethylene coating detection equipment, through the cooperation of the tensile testing machine 1, the operation table 2, the fixed box 3, the clamping mechanism 4, the screw rod 41, the gear 42, the rotating handle 43, the synchronous gear 44, the sleeve plate 45, the connecting block 46, the connecting plate 47, the clamping block 48 and the positioning mechanism 5, the problem that the existing tensile testing equipment adopts the bonding mode to test the polytetrafluoroethylene coating and is prone to cracking and loosening in the pulling process and the problem of inaccurate test data are solved.
[0040] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0041] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A testing device for polytetrafluoroethylene coatings, characterized in that, include: Tensile testing machine (1); The top of the tensile testing machine (1) is fixedly connected to an operating table (2), and the top of the operating table (2) is fixedly connected to a fixed box (3). The left and right sides of the inner wall of the fixed box (3) are movably connected to a clamping mechanism (4) through a bearing seat. The clamping mechanism (4) includes a screw (41), a gear (42), a throttle (43), a synchronous gear (44), a sleeve plate (45), a connecting block (46), a connecting plate (47), and a clamping block (48). The left and right sides of the inner wall of the fixed box (3) are movably connected to the screw (41) through bearing seats. The gear (42) is fixedly connected to the inner side of the screw (41). The throttle (43) is movably connected to the front end of the fixed box (3). The back end of the throttle (43) extends through the interior of the fixed box (3) and is fixedly connected to the synchronous gear (44). The left and right sides of the back end of the synchronous gear (44) are meshed with the front end of the gear (42). The surface of the screw (41) is movably fitted with a sleeve plate (45). The front and back ends of the top of the sleeve plate (45) are fixedly connected with a connecting block (46). The top of the connecting block (46) is fixedly connected with a connecting plate (47). The inner side of the connecting plate (47) is fixedly connected with a clamping block (48). The top of the clamping block (48) penetrates the top of the fixed box (3). The front and back ends of the connecting plate (47) are fixedly connected with a positioning mechanism (5).
2. The testing equipment for polytetrafluoroethylene coating according to claim 1, characterized in that: The positioning mechanism (5) includes a fixing block (51), a horizontal plate (52), a U-shaped push block (53), a locking block (54), and a spring (55). The front end and back end of the connecting plate (47) are fixedly connected to the fixing block (51). The front end and back end of the left side of the inner wall of the fixed box (3) are fixedly connected to the horizontal plate (52). The right side of the horizontal plate (52) passes through the right side of the fixing block (51) and is fixedly connected to the right side of the inner wall of the fixed box (3). The top and bottom of the right side of the fixing block (51) and the inside of the horizontal plate (52) are fixedly connected to the U-shaped push block (53). The top and bottom of the horizontal plate (52) are movably connected to the locking block (54). The left and right sides of the inner cavity of the horizontal plate (52) and the position corresponding to the locking block (54) are longitudinally fixedly connected to the spring (55). The top and bottom of the spring (55) are fixedly connected to the inner side of the locking block (54).
3. The testing equipment for polytetrafluoroethylene coating according to claim 2, characterized in that: The top and bottom of the surface of the horizontal plate (52) are provided with sliding grooves (6), which are used in conjunction with the U-shaped push block (53).
4. The testing equipment for polytetrafluoroethylene coating according to claim 2, characterized in that: The left side of the card block (54) is provided with an oblique groove (7), which is used in conjunction with the U-shaped push block (53).
5. The testing equipment for polytetrafluoroethylene coating according to claim 1, characterized in that: Anti-slip blocks (8) are fixedly connected to the left and right sides of the throttle (43) surface. There are several anti-slip blocks (8) and they are evenly distributed.
6. The testing equipment for polytetrafluoroethylene coating according to claim 1, characterized in that: A rubber pad (9) is fixedly connected to the inner side of the clamping block (48), and the rubber pad (9) is used in conjunction with the clamping block (48).