Clamping device for testing bonding strength of uppers and soles
By designing a semi-circular ring structure for the clamping device and a support spring in conjunction with a lever handle, the problem of non-standard clamping in existing clamps was solved, enabling a simple and easy-to-operate test of the adhesive strength of shoe uppers and soles, thus improving the accuracy and safety of the test.
Patent Information
- Application Number
- CN202423312984.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing clamping surfaces of the clamps are of varying thicknesses, resulting in non-standard clamping positions. This may cause the soles to slip or be damaged, affecting the accuracy and safety of the adhesive strength test for the upper and sole.
Design a clamping device for testing the adhesive strength of shoe upper and sole. It adopts a clamp-type clamp composed of a first semicircular ring and a second semicircular ring. A support spring is sleeved on the surface of a long screw. The clamping surface is loosened by lever handle. The arc surface design of the convex and groove clamping surfaces realizes simple and easy-to-operate clamping and loosening.
It enables efficient and accurate testing of the bonding strength of shoe uppers and soles, avoiding slippage and material damage during clamping, and improving the accuracy and safety of the test.
Smart Images
Figure CN223913568U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to clamping device technical field, especially a kind of clamping device for shoe upper bottom adhesion strength test. BACKGROUND
[0002] At present, the domestic and foreign standard requirement of shoe upper bottom adhesion strength requires that the short edge of the shoe bottom is clamped by the pincer-shaped clamp, the existing pincer-shaped clamp clamping surface on the market has the condition of different thickness, and the thickness of the pincer-shaped clamping surface will affect the test results; If the clamping surface is thick, the clamping position of the clamped shoe bottom will exceed the short edge position of the standard required shoe bottom, resulting in non-standard clamping position; Because the short edge position of the clamped shoe bottom is limited, and the short edge material of the shoe bottom is mostly elastic, it will be stretched to a certain extent under the tensile force in the peeling stress, the thicker the pincer-shaped clamping surface, the greater the possibility of sliding of the clamped shoe bottom on the clamping surface, and the sliding of the clamping surface will reduce the peeling force value recorded by the tensile force sensor, which is not suitable for testing the adhesion strength of the upper and bottom, and affects the accuracy and reproducibility of the test results; If the clamping surface is thin, the short edge material of the shoe bottom may be sheared and damaged during peeling, affecting the performance of the upper and bottom peeling test, and also posing a risk of cutting the test technician. CONTENT OF THE UTILITY MODEL
[0003] In order to overcome the shortcomings of the prior art, the utility model provides a kind of clamping device for shoe upper bottom adhesion strength test, by the surface of long screw between first half ring, second half ring is equipped with support spring, when personnel anticlockwise rotates lever handle, support spring is loosened with first half ring, second half ring and stretches to two ends in the length direction of long screw and expands the clamping surface of two half rings to two ends, so as to loosen the clamp, without manually moving the clamping surface, the clamping device is simple in structure, easy to operate, time-saving and labor-saving, which is beneficial to the efficient and accurate realization of the short edge clamping of the upper and bottom of the finished product shoe of the stretched upper type, meets the quality detection of the adhesion strength of the upper and bottom of the conventional stretched upper type finished product shoe, and is beneficial to the application and promotion of the adhesion strength test of the upper and bottom of the finished product shoe.
[0004] To solve the above technical problems, the utility model provides technical scheme as follows: A clamping device for testing the adhesion strength of shoe upper bottom, including shoe upper test body, the shoe upper surface clamping installation of second pincer type clamp is in the top of shoe upper test body, the first pincer type clamp is clamped and is installed to the short edge of shoe sole of shoe upper test body bottom, first pincer type clamp, second pincer type clamp all are by first semicircle ring, second semicircle ring constitute, one end of first semicircle ring is fixedly arranged with two second sleeve, one end of second semicircle ring is fixedly arranged with two first sleeve, two first sleeve are between two second sleeve, the same bolt pivot is installed in the inside of first sleeve, second sleeve, the torsional spring is sleeved with the centre of bolt pivot, the torsional spring is between two first sleeve, the threaded hole is seted up on the one side surface of first semicircle ring, the limit hole is seted up on the surface of second semicircle ring, the same long screw is installed in the inside of limit hole, threaded hole, the surface of long screw is sleeved with support spring between first semicircle ring, second semicircle ring, the threaded end of long screw is connected with threaded hole, the surface of one end of long screw is sleeved with internal thread nut and is penetrated threaded hole, the one end surface of long screw is fixedly arranged with disc close to limit hole, the through -hole is seted up on the surface of disc, the lever handle is installed in the inside of through -hole, the hexagon nut is fixedly arranged on one end of lever handle, the threaded column is seted up on the surface of the other end of lever handle, the limit nut is sleeved with the surface of threaded column, the clamping opening of first pincer type clamp is upward, the clamping opening of second pincer type clamp is downward, the metal support rod is fixedly arranged in the centre of first pincer type clamp bottom, the connecting base is installed to the metal support rod bottom, the connecting base is fixedly installed on the top of fixed platform, the fixed ring is fixedly welded on the top surface of second pincer type clamp, the chain ring is installed on the surface of fixed ring, the top connecting seat is installed on the top of chain ring, the tension tester is fixedly installed on the top of top connecting seat.
[0005] As a preferred technical scheme of the utility model, the one end surface of the first semicircle ring away from the first sleeve is provided with a groove clamping surface, and the one end surface of the second semicircle ring away from the second sleeve is provided with a convex clamping surface, and the convex clamping surface and the groove clamping surface are engaged.
[0006] As a preferred technical scheme of the utility model, the one end of the long screw penetrating the first pincer type clamp has a certain length.
[0007] As a preferred technical scheme of the utility model, the convex clamping surface and the groove clamping surface are both arc surfaces.
[0008] As a preferred technical scheme of the utility model, the hexagon nut and the limit nut are both circular arc surfaces.
[0009] Compared with the prior art, the utility model can achieve the following beneficial effects:
[0010] 1. The utility model discloses a long screw is set up the support spring on the surface between the first semicircle ring, the second semicircle ring, when the personnel counterclockwise rotates the lever handle, the support spring is loose with the first semicircle ring, the second semicircle ring and expands to the two ends and expands the assistance of two semicircle ring's clamping surface to two ends and opens to the length direction of long screw, so that the clamp is loose, and the artificial additional moves away the clamping surface, and the clamping device structure is simple, simple and convenient, and easy operation saves time and energy, and it is favorable to the detection mechanism high -efficient, accurate realization of the short edge clamping of the bottom of the finished shoe of the type of the taut upper, satisfies the quality detection of the upper bottom adhesion strength of the conventional taut upper type finished shoe, and it is favorable to the use and extension of the upper bottom adhesion strength test of the finished shoe.
[0011] 2. The long screw has a certain length through one end of the first pincer type clamp, can realize that the two semicircle rings on the long screw still keep the short edge material of the bottom of the shoe for clamping when the clamp is loose, prepares for the clamping of the short edge material of the bottom of the shoe next time, reduces the operation of the position of the screw and semicircle ring alignment and the initial screwing into the screw hole with the spent manpower, sets up the convex clamping surface and the recess clamping surface as the cambered surface, when the two semicircle rings clamp the material, can avoid the short edge material of the bottom of the shoe being sheared and damaged, when peeling test, can prevent the material from being stretched and slipping when being clamped, sets up the surface of the hexagonal nut and the limit nut as the circular arc, makes it convenient for the test personnel to hold the lever handle and exert force, rotates the long screw clockwise and tightens the two semicircle rings, rotates the long screw counterclockwise and loosens the two semicircle rings. DRAWINGS
[0012] Figure 1 It is the whole sectional structure schematic diagram of the utility model.
[0013] Figure 2 It is the side structure schematic diagram of the utility model.
[0014] Figure 3 It is the pincer type clamp expansion structure schematic diagram of the utility model.
[0015] Wherein: 1, the upper to be measured body; 2, fixed platform; 3, first pincer type clamp; 4, second pincer type clamp; 5, bolt pivot; 6, metal support rod; 7, connecting base; 8, long screw; 9, internal thread nut; 10, lever handle; 11, disc; 12, hexagonal nut; 13, limit nut; 14, support spring; 15, limit hole; 16, threaded hole; 17, fixed ring; 18, chain ring; 19, top connecting seat; 20, first half ring; 21, second half ring; 22, torsion spring; 23, first sleeve; 24, second sleeve; 25, convex clamping surface; 26, recessed clamping surface. DETAILED DESCRIPTION
[0016] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0017] Embodiment, please refer to Figure 1 , Figure 2 , Figure 3As shown, the utility model provides a kind of clamping device for upper bottom adhesion strength test, including upper test body 1, the upper surface clamping installation of upper test body 1 top end second pincer type clamp 4, the short edge clamping installation of sole of upper test body 1 bottom end first pincer type clamp 3, first pincer type clamp 3,second pincer type clamp 4 are all by first semicircle ring 20,second semicircle ring 21 is formed, two second sleeves 24 are fixedly arranged in one end of first semicircle ring 20, two first sleeves 23 are fixedly arranged in one end of second semicircle ring 21, two first sleeves 23 are between two second sleeves 24, same bolt shaft 5 is installed in first sleeve 23,second sleeve 24 inside, torsion spring 22 is sleeved in the center of bolt shaft 5, torsion spring 22 is between two first sleeves 23, thread hole 16 is formed in the surface of one side of first semicircle ring 20, limit hole 15 is formed in the surface of second semicircle ring 21, same long screw 8 is installed in the inside of limit hole 15,thread hole 16, support spring 14 is sleeved on the surface of long screw 8 between first semicircle ring 20,second semicircle ring 21, the threaded end of long screw 8 is connected with thread hole 16, internally threaded nut 9 is sleeved on the surface of one end of long screw 8 through thread hole 16, disc 11 is fixedly arranged on the surface of one end of long screw 8 close to limit hole 15, through hole is formed in the surface of disc 11, lever handle 10 is installed in the inside of through hole, hexagonal nut 12 is fixedly arranged in one end of lever handle 10, threaded column is provided on the surface of other end of lever handle 10, limit nut 13 is sleeved on the surface of threaded column, the clamping opening of first pincer type clamp 3 is upward, the clamping opening of second pincer type clamp 4 is downward, metal support rod 6 is fixedly arranged in the center of bottom end of first pincer type clamp 3, connecting base 7 is installed in the bottom end of metal support rod 6, connecting base 7 is fixedly installed on the top end of fixed table top 2, fixed ring 17 is fixedly welded on the surface of top end of second pincer type clamp 4, chain ring 18 is installed on the surface of fixed ring 17, top connecting seat 19 is installed on the top end of chain ring 18, tension tester is fixedly installed on the top end of top connecting seat 19.The first half ring 20 and the second half ring 21 can be flexibly loosened by the cooperation of the bolt shaft 5, the torsional spring 22, the first sleeve 23 and the second sleeve 24. After the upper material of the upper body 1 to be tested is installed between the protruding clamping surface 25 and the recessed clamping surface 26 at the bottom end of the second pincer-shaped clamp 4, a person holds one end of the lever handle 10 on one side of the second pincer-shaped clamp 4 and rotates it clockwise to adjust the clamping distance of the first half ring 20 and the second half ring 21, so that the protruding clamping surface 25 and the recessed clamping surface 26 tightly lock and fix the upper material. After the short edge material of the sole is installed between the protruding clamping surface 25 and the recessed clamping surface 26 at the top end of the first pincer-shaped clamp 3, a person holds the lever handle 10 on one side of the first pincer-shaped clamp 3 and rotates it clockwise to adjust the clamping distance of the first half ring 20 and the second half ring 21, so that the protruding clamping surface 25 and the recessed clamping surface 26 tightly lock and fix the upper material. At this time, the tensile tester is started to detect the adhesion strength of the upper and bottom of the shoe. After the detection is completed, the lever handle 10 on one side of the first pincer-shaped clamp 3 and the second pincer-shaped clamp 4 is rotated counterclockwise to remove the upper body 1 to be tested. By sleeving the supporting spring 14 between the first half ring 20 and the second half ring 21 on the surface of the long screw 8, when the lever handle 10 is counterclockwise rotated, the supporting spring 14 expands in the length direction of the long screw 8 and expands outward to the two ends to assist the clamping surface of the two half rings to open to the two ends, thereby loosening the clamp, without the need for manual additional moving of the clamping surface. The clamping device has the advantages of simple structure, simple and convenient operation, time and labor saving, which is conducive to the efficient and accurate realization of the short edge clamping of the upper type finished shoe sole by the detection mechanism, meets the quality detection of the adhesion strength of the upper and bottom of the conventional upper type finished shoe, and is conducive to the application and promotion of the adhesion strength test of the upper and bottom of the finished shoe.
[0018] As shown in Figure 3 , the one end surface of the first half ring 20 away from the first sleeve 23 is provided with a recessed clamping surface 26, and the one end surface of the second half ring 21 away from the second sleeve 24 is provided with a protruding clamping surface 25, and the protruding clamping surface 25 and the recessed clamping surface 26 are engaged; by the convex-concave structure design of the recessed clamping surface 26 on the one end surface of the first half ring 20 and the protruding clamping surface 25 on the one end surface of the second half ring 21, the convex surface and the concave surface of the two half rings can accurately clamp the short edge material of the sole when tightly clamped.
[0019] As shown in Figure 1 , the long screw 8 has a certain length through one end of the first pincer-shaped clamp 3; the long screw 8 has a certain length through one end of the first pincer-shaped clamp 3, which can realize that the two half rings on the long screw 8 still maintain the clamped state when the clamp is loosened, prepare for clamping the short edge material of the sole next time, and reduce the operation of finding the position of the half ring and initially screwing into the screw hole.
[0020] As Figure 1 , Figure 3 shown, convex clamping surface 25, groove clamping surface 26 surface are arc surface; by the clamping surface of convex clamping surface 25, groove clamping surface 26 is set to arc surface, two semicircle ring can avoid the short edge material of shoe sole when clamping material is sheared and damaged, when peeling test, can prevent the material from being clamped and stretched and produce the phenomenon of skidding.
[0021] As Figure 2 shown, hexagonal nut 12, limit nut 13 surface are circular arc; by the surface of hexagonal nut 12, limit nut 13 is set to circular arc, it is convenient for test personnel to hold lever handle 10 force, rotate long screw 8 clockwise and tighten two semicircle rings, rotate long screw 8 counterclockwise and loosen two semicircle rings.
[0022] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A clamping device for sole adhesion strength test of a shoe upper, comprising a shoe upper to be tested (1), characterized in that: The upper surface of the upper end of the upper body (1) is clamped and mounted with a second pincer type clamp (4), and the short edge of the sole of the bottom end of the upper body (1) is clamped and mounted with a first pincer type clamp (3), the first pincer type clamp (3) and the second pincer type clamp (4) are composed of a first semicircle ring (20) and a second semicircle ring (21), one end of the first semicircle ring (20) is fixedly provided with two second sleeves (24), one end of the second semicircle ring (21) is fixedly provided with two first sleeves (23), the two first sleeves (23) are between the two second sleeves (24), a same bolt shaft (5) is installed inside the first sleeve (23) and the second sleeve (24), a torsional spring (22) is sleeved at the center of the bolt shaft (5), the torsional spring (22) is between the two first sleeves (23), a threaded hole (16) is formed in one side surface of the first semicircle ring (20), a limiting hole (15) is formed in the surface of the second semicircle ring (21), a same long screw (8) is installed inside the limiting hole (15) and the threaded hole (16), a supporting spring (14) is sleeved on the surface of the long screw (8) between the first semicircle ring (20) and the second semicircle ring (21), the threaded end of the long screw (8) is screwed with the threaded hole (16), an internally threaded nut (9) is sleeved on the surface of one end of the long screw (8) penetrating through the threaded hole (16), a disc (11) is fixedly arranged on the surface of one end of the long screw (8) close to the limiting hole (15), a through hole is formed in the surface of the disc (11), a lever handle (10) is installed inside the through hole, a hexagonal nut (12) is fixedly arranged on one end of the lever handle (10), a threaded column is arranged on the surface of the other end of the lever handle (10), a limiting nut (13) is sleeved on the surface of the threaded column, the clamping opening of the first pincer type clamp (3) is upward, the clamping opening of the second pincer type clamp (4) is downward, a metal supporting rod (6) is fixedly arranged at the center of the bottom end of the first pincer type clamp (3), a connecting base (7) is installed at the bottom end of the metal supporting rod (6), the connecting base (7) is fixedly installed on the top end of a fixed table top (2), a fixed ring (17) is fixedly welded on the surface of the top end of the second pincer type clamp (4), a chain ring (18) is installed on the surface of the fixed ring (17), a top connecting seat (19) is installed on the top end of the chain ring (18), a tension tester is fixedly installed on the top end of the top connecting seat (19).
2. A clamping device for sole adhesion strength testing of footwear according to claim 1, characterized in that: The surface of one end of the first semicircle ring (20) away from the first sleeve (23) is provided with a recess clamping surface (26), the surface of one end of the second semicircle ring (21) away from the second sleeve (24) is provided with a protruding clamping surface (25), the protruding clamping surface (25) and the recess clamping surface (26) are engaged.
3. The clamping device for sole adhesion strength test of footwear according to claim 1, characterized in that: The long screw (8) has a certain length penetrating through one end of the first pincer type clamp (3).
4. The holding device for sole adhesion strength test according to claim 2, characterized in that: The surfaces of the protruding clamping surface (25) and the recess clamping surface (26) are arc surfaces.
5. The holding device for sole adhesion strength test according to claim 1, characterized in that: The hexagonal nut (12) and the limiting nut (13) are both circular arc-shaped in surface.