EVA (Ethylene Vinyl Acetate) sheet wear resistance detection device

Abstract

The utility model relates to the technical field of EVA (Ethylene Vinyl Acetate) sheet detection, and discloses an EVA sheet wear resistance detection device which comprises a wear resistance detection device main body, an abrasive material is placed in the rotating end of the wear resistance detection device main body, a guide rod is inserted into the swinging end of the wear resistance detection device main body, and the bottom end of the guide rod is in threaded connection with a sheet clamp. A weight is inserted into the top end of the guide rod; the sheet clamp comprises an internal thread sleeve, the internal thread of the internal thread sleeve is in threaded connection with an external thread compression ring, a rolling ball is adopted to replace a common smooth plate to eject a test sheet out of the internal thread sleeve, so that when the test sheet is in contact with an abrasive material, the internal thread sleeve is not in contact with the abrasive material, and when the test sheet is damaged, the external thread compression ring is in threaded connection with the external thread compression ring. The balls are still located outside the inner threaded sleeve, at the moment, the balls make contact with the grinding materials, the balls can roll, friction between the balls and the grinding materials is small, and the problems that the grinding materials are excessively abraded and the inner threaded sleeve makes friction with the grinding materials are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to EVA sheet detection technical field, concretely is a kind of EVA sheet wear resistance detection device. BACKGROUND

[0002] EVA sheet wear resistance detection is mainly used to evaluate its resistance to wear in actual use, commonly used in shoe material, packaging material, sports equipment and other fields, wherein EVA sheet wear resistance detection in shoe material field is usually carried out by using martin wear tester, when using martin wear tester, the cut EVA sheet is placed in the special clamp, then the clamp is installed on the swing end of martin wear tester, the EVA sheet in the clamp is pressed on the abrasive of rotating end, the abrasive is rotated by swing end movement and rotating end rotation, to realize the wear resistance detection of EVA sheet, however, when EVA sheet breaks in wear test, it will cause friction between clamp and abrasive, and further cause unnecessary wear of abrasive and clamp. SUMMARY

[0003] The utility model aims at providing a kind of EVA sheet wear resistance detection device to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of EVA sheet wear resistance detection device, including wear resistance detection device main part, abrasive is placed in the rotating end of wear resistance detection device main part, guide rod is inserted on the swing end of wear resistance detection device main part, the bottom end of guide rod is threadedly connected with sheet clamp, the top end of guide rod is inserted with weight;

[0005] The sheet clamp includes internal thread sleeve, the internal thread sleeve is threadedly connected with external thread compression ring, test sheet is placed in the internal thread sleeve, the bottom of external thread compression ring is pressed at the edge of test sheet, the bottom inner wall of external thread compression ring is fixedly installed with mounting plate, the bottom of mounting plate is fixedly installed with ball, the ball is stretched out from internal thread sleeve, and the middle part of test sheet is pushed to the outside of internal thread sleeve by ball, auxiliary component is installed in external thread compression ring.

[0006] Further, the auxiliary component includes porous flat plate, pressing spring, slide bar, connecting plate, the porous flat plate is below mounting plate, and the ball is stretched out from the hole in the porous flat plate, the slide bar is fixedly connected with porous flat plate and connecting plate, the slide bar is movably penetrated from mounting plate, the top end of pressing spring is fixedly connected with the top inner wall of external thread compression ring, the bottom end of pressing spring is fixedly connected with the top of connecting plate, and the connecting plate is in external thread compression ring.

[0007] Further, the top end of the guide rod is provided with an integrally-formed rectangular clamping block, and the bottom of the weight is fixedly provided with a rectangular clamping sleeve which is sleeved on the rectangular clamping block.

[0008] Further, the outer wall of the guide rod is sleeved with a smooth sleeve which is fixedly installed on the swinging end.

[0009] Further, the outer wall of the inner threaded sleeve is provided with an integrally-formed anti-skid protrusion, and the outer wall of the outer threaded compression ring is fixedly provided with a hexagonal protrusion.

[0010] Further, the outer wall of the rectangular clamping block is provided with a semicircular groove, the inner wall of the rectangular clamping sleeve is fixedly provided with an elastic metal sheet, the end of the elastic metal sheet is fixedly provided with a spherical clamping block, and half of the spherical clamping block is clamped into the semicircular groove on the rectangular clamping block.

[0011] Compared with the prior art, the present application has the following beneficial effects:

[0012] 1. The rolling ball is used to replace the commonly-used smooth plate to push out the test sheet from the inner threaded sleeve, so that the inner threaded sleeve is not in contact with the abrasive when the test sheet is in contact with the abrasive, and when the test sheet is damaged, the rolling ball is still located outside the inner threaded sleeve, at this time, the rolling ball is in contact with the abrasive, the rolling ball is rollable, the friction with the abrasive is small, and the problems of excessive abrasion of the abrasive and friction between the inner threaded sleeve and the abrasive are avoided.

[0013] 2. The perforated plate is arranged to intercept the damaged test sheet, so that the damaged test sheet is not rolled into the gap between the mounting plate and the rolling ball during the rolling process of the rolling ball, and when the damaged test sheet needs to be cleaned, the perforated plate is pushed to make the gap between the perforated plate and the rolling ball larger, so that the worker can take out the test sheet clamped in the gap. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the present application;

[0015] Figure 2 It is a structural schematic view of the rotating end and the sheet clamp of the present application;

[0016] Figure 3 It is a structural schematic view of the present application Figure 2 It is a structural schematic view of the side cross-sectional view;

[0017] Figure 4 It is a structural schematic view of the sheet clamp of the present application;

[0018] Figure 5 It is a structural schematic view of the sheet clamp of the present application;

[0019] Figure 6 The auxiliary component is a structure schematic view of the utility model.

[0020] In the figure: 1, wear-resistant detection device main body; 101, swing end; 102, rotating end; 103, abrasive; 2, sheet clamp; 201, internal thread sleeve; 202, external thread compression ring; 203, mounting plate; 204, ball; 205, auxiliary component; 2051, porous flat plate; 2052, down spring; 2053, sliding rod; 2054, connecting plate; 3, guide rod; 301, rectangular clamping block; 4, weight; 401, rectangular clamping sleeve; 5, smooth sleeve; 6, test sheet; 7, spherical clamping block; 8, elastic metal sheet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly 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, not all the embodiments.

[0022] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a kind of EVA sheet wear-resistant detection device, including wear-resistant detection device main body 1, abrasive 103 is placed in the rotating end 102 of wear-resistant detection device main body 1, swing end 101 of wear-resistant detection device main body 1 is inserted with guide rod 3, and sheet clamp 2 is threadedly connected in the bottom end of guide rod 3, and weight 4 is inserted in the top end of guide rod 3, downward force is applied by weight 4, guide rod 3 is pressed down, and then sheet clamp 2 is pressed down, so that sheet clamp 2 can press EVA sheet on abrasive 103;

[0023] The sheet clamp 2 comprises an internally threaded sleeve 201, an externally threaded pressing ring 202 is threadedly connected to the internally threaded sleeve 201, a test sheet 6 is placed in the internally threaded sleeve 201, the bottom of the externally threaded pressing ring 202 is pressed at the edge of the test sheet 6, an installation plate 203 is fixedly installed on the inner wall of the bottom of the externally threaded pressing ring 202, a ball 204 is fixedly installed on the bottom of the installation plate 203, the ball 204 extends out of the internally threaded sleeve 201, and the ball 204 pushes the middle part of the test sheet 6 out of the internally threaded sleeve 201, an auxiliary component 205 is installed in the externally threaded pressing ring 202, the ball 204 is used instead of the commonly used smooth plate to push the test sheet 6 out of the internally threaded sleeve 201, so that the internally threaded sleeve 201 is not in contact with the abrasive 103 when the test sheet 6 is in contact with the abrasive 103, and the ball 204 is still located outside the internally threaded sleeve 201 when the test sheet 6 is damaged, at which time the ball 204 is in contact with the abrasive 103, the ball 204 is rollable, the friction with the abrasive 103 is small, and the problems of excessive wear of the abrasive 103 and friction between the internally threaded sleeve 201 and the abrasive 103 are avoided, and the auxiliary component 205 is arranged to prevent the damaged test sheet 6 from being stuck in the gap between the installation plate 203 and the ball 204;

[0024] The auxiliary component 205 comprises a perforated flat plate 2051, a pressing spring 2052, a sliding rod 2053 and a connecting plate 2054, the perforated flat plate 2051 is located below the installation plate 203, the ball 204 extends out of the hole in the perforated flat plate 2051, the sliding rod 2053 fixedly connects the perforated flat plate 2051 and the connecting plate 2054, the sliding rod 2053 movably penetrates the installation plate 203, the top end of the pressing spring 2052 is fixedly connected to the top inner wall of the externally threaded pressing ring 202, the bottom end of the pressing spring 2052 is fixedly connected to the top of the connecting plate 2054, and the connecting plate 2054 is located in the externally threaded pressing ring 202, the perforated flat plate 2051 is arranged to intercept the damaged test sheet 6, so as to avoid that the damaged test sheet 6 is wound into the gap between the installation plate 203 and the ball 204 during the rolling process of the ball 204 under stress, and when it is necessary to clean the damaged test sheet 6, the perforated flat plate 2051 can be pushed to increase the gap between the perforated flat plate 2051 and the ball 204, so that the worker can take out the test sheet 6 stuck in the gap;

[0025] The top end of the guide rod 3 is provided with an integrally formed rectangular clamping block 301, the bottom of the weight 4 is fixedly provided with a rectangular clamping sleeve 401, the rectangular clamping sleeve 401 is clamped on the rectangular clamping block 301, and the rectangular clamping block 301 and the rectangular clamping sleeve 401 are used to connect the guide rod 3 and the weight 4, so that the weight 4 is effectively prevented from rotating relative to the guide rod 3 when the swing end 101 drives the guide rod 3 to move, and the weight 4 is further prevented from falling off the guide rod 3;

[0026] The outer wall of the guide rod 3 is sleeved with a smooth sleeve 5, which is fixedly installed on the swing end 101, so as to avoid direct contact between the swing end 101 and the guide rod 3, thereby avoiding mutual abrasion between the swing end 101 and the guide rod 3;

[0027] The outer wall of the inner threaded sleeve 201 is provided with an integrally formed anti-skid protrusion, and the outer wall of the outer threaded compression ring 202 is fixedly provided with a hexagonal protrusion, so as to facilitate workers to rotate the inner threaded sleeve 201 and the outer threaded compression ring 202;

[0028] The outer wall of the rectangular clamping block 301 is provided with a semicircular groove, the inner wall of the rectangular clamping sleeve 401 is fixedly installed with an elastic metal sheet 8, the end of the elastic metal sheet 8 is fixedly installed with a spherical clamping block 7, and half of the spherical clamping block 7 is clamped into the semicircular groove on the rectangular clamping block 301; the elastic metal sheet 8 is used to push the spherical clamping block 7 into the semicircular groove, so as to reinforce the connection between the rectangular clamping block 301 and the rectangular clamping sleeve 401; in the process of clamping the rectangular clamping block 301, the spherical clamping block 7 can extrude the elastic metal sheet 8, so that the elastic metal sheet 8 is deformed.

[0029] Working principle: when in use, the cut test sheet 6 is placed into the inner threaded sleeve 201, the outer threaded compression ring 202 is screwed in, the ball 204 pushes the middle part of the test sheet 6 out of the inner threaded sleeve 201, the guide rod 3 is inserted into the smooth sleeve 5 on the swing end 101, the bottom end of the guide rod 3 is screwed with the outer threaded compression ring 202, then the rectangular clamping sleeve 401 is sleeved on the rectangular clamping block 301, and the preliminary preparation is completed; the abrasion resistance testing device main body 1 is opened, the swing end 101 drives the guide rod 3 to move back and forth along the set track, and the rotating end 102 drives the abrasive 103 to rotate, so that the abrasion resistance test can be carried out.

[0030] Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

Claims

1. An EVA sheet wear resistance detection device, comprising a wear resistance detection device main body (1), characterized in that: The rotating end (102) of the wear-resistant detection device body (1) is placed with abrasive (103), the swing end (101) of the wear-resistant detection device body (1) is inserted with a guide rod (3), the bottom end of the guide rod (3) is threadedly connected with a sheet clamp (2), and the top end of the guide rod (3) is inserted with a weight (4); The sheet clamp (2) comprises an inner threaded sleeve (201), the inner threaded sleeve (201) is internally threadedly connected with an outer threaded compression ring (202), the inner threaded sleeve (201) is placed with a test sheet (6), the bottom of the outer threaded compression ring (202) is pressed at the edge of the test sheet (6), the bottom inner wall of the outer threaded compression ring (202) is fixedly installed with a mounting plate (203), the bottom of the mounting plate (203) is fixedly installed with a ball (204), the ball (204) extends out of the inner threaded sleeve (201), and the ball (204) pushes the middle part of the test sheet (6) to the outside of the inner threaded sleeve (201), and the outer threaded compression ring (202) is internally installed with an auxiliary component (205).

2. The EVA sheet wear resistance detection device according to claim 1, characterized in that: The auxiliary component (205) comprises a perforated flat plate (2051), a pressing spring (2052), a sliding rod (2053) and a connecting plate (2054), the perforated flat plate (2051) is located below the mounting plate (203), and the ball (204) extends out of the hole in the perforated flat plate (2051), the sliding rod (2053) fixedly connects the perforated flat plate (2051) and the connecting plate (2054), the sliding rod (2053) movably penetrates the mounting plate (203), the top end of the pressing spring (2052) is fixedly connected with the top inner wall of the outer threaded compression ring (202), the bottom end of the pressing spring (2052) is fixedly connected with the top of the connecting plate (2054), and the connecting plate (2054) is located in the outer threaded compression ring (202).

3. The EVA sheet wear resistance detection device according to claim 1, characterized in that: The top end of the guide rod (3) is provided with an integrally formed rectangular clamping block (301), the bottom of the weight (4) is fixedly installed with a rectangular clamping sleeve (401), and the rectangular clamping sleeve (401) is clamped on the rectangular clamping block (301).

4. The EVA sheet wear resistance detection device according to claim 1, characterized in that: The outer wall of the guide rod (3) is slidably sleeved with a smooth sleeve (5), and the smooth sleeve (5) is fixedly installed on the swing end (101).

5. The EVA sheet wear resistance detection device according to claim 1, characterized in that: The outer wall of the inner threaded sleeve (201) is provided with an integrally formed anti-skid protrusion, and the outer wall of the outer threaded compression ring (202) is fixedly provided with a hexagonal protrusion.

6. The EVA sheet wear resistance detection device according to claim 3, characterized in that: The outer wall of the rectangular clamping block (301) is provided with a semicircular groove, the inner wall of the rectangular clamping sleeve (401) is fixedly installed with an elastic metal sheet (8), the end of the elastic metal sheet (8) is fixedly installed with a spherical clamping block (7), and half of the spherical clamping block (7) is clamped into the semicircular groove on the rectangular clamping block (301).

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