Sandpaper automatic winding structure of abrasion tester

Abstract

The utility model discloses a sandpaper automatic winding structure of abrasion testing machine, including frame, be equipped with winding structure on the frame, and winding structure includes second clamp frame, first clamp frame, weight seat, and weight seat sets up between second clamp frame and first clamp frame, and the both sides of weight seat are equipped with the card paper guide groove that leans down symmetrically, first clamp frame is equipped with sandpaper roller on the outside away from weight seat, and sandpaper roll is equipped with sandpaper on sandpaper roller, and sandpaper is worn in first clamp frame, and one side of second clamp frame is equipped with second roller near weight seat, and second roller is located on the outside of weight seat top, and the frame of second clamp frame is equipped with the second tensioning seat of displacement, and one end of second tensioning seat near weight seat is equipped with second pressure wheel, and second pressure wheel and second roller are tightly arranged. The present application matches the single action gear of cylinder and promotes, makes sandpaper become easier to change, and the tension is consistent.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, and in particular relates to an automatic sandpaper rolling structure for an abrasion testing machine. Background Technology

[0002] The abrasion tester is used to test the abrasion resistance, bending and edge wear properties of material surfaces. It is suitable for quality control of materials such as fabrics, leather, rubber, plastics and paper. It supports abrasion resistance tests of materials after solvent treatment (dry and wet conditions). Vertical load can be applied to the test position of the sample. The abrasion resistance is evaluated by the amount of wear generated by the friction between the sample and sandpaper of a certain grit size.

[0003] Currently, the sandpaper replacement in abrasion testing machines relies on screws to fix the sandpaper clamps. Replacing the sandpaper depends on manually removing the screws to loosen the clamps and then pulling out the new sandpaper, resulting in long replacement times, high labor intensity, and an inability to achieve rapid replacement. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the purpose of this utility model is to provide an automatic sandpaper rolling structure for an abrasion testing machine, which can quickly change the sandpaper, solve the problems of inconvenient operation and low replacement efficiency in the prior art, and improve the ease of use of the equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic sandpaper rolling structure for an abrasion testing machine includes a frame, on which a rolling structure is provided. The rolling structure includes a second clamp frame, a first clamp frame, and a weight holder. The weight holder is disposed between the second clamp frame and the first clamp frame, and the weight holder has downwardly inclined symmetrical paper guide grooves on both sides. The first clamp frame is equipped with a sandpaper roller on the outer side away from the weight seat. A sandpaper roll is provided on the sandpaper roller, and the sandpaper leading out of the sandpaper roll is threaded through the first clamp frame. The second clamp holder has a second roller on the side near the weight base, and the second roller is located above the outer side of the weight base; The second clamp frame is provided with a movable second tensioning seat. The second tensioning seat is provided with a second pressure roller at one end near the weight seat. The second pressure roller is abutted against the second roller. A paper passage gap D (spacing) is provided between the contact point of the second roller and the second pressure roller and the outer side of the weight seat. One end of the second roller is equipped with a single-acting gear, the outer edge of which is equipped with a gear rack that meshes with the gear, and a cylinder is located above the gear rack.

[0006] Furthermore, in some embodiments, a second torque handle is provided at the end of the second tension seat away from the weight seat, and the second torque handle is threadedly connected to the second clamp frame.

[0007] Furthermore, in some embodiments, a first roller is provided on the side of the first clamp frame near the weight base, and the first roller is located above and outside the weight base; The first clamp frame is provided with a movable first tensioning seat. The first tensioning seat is provided with a first pressure roller at one end near the weight seat. The first pressure roller is abutted against the first roller. A paper passage gap D (spacing) is also provided between the contact point of the first roller and the first pressure roller and the outer side of the weight seat.

[0008] Furthermore, in some embodiments, the end of the first tension seat away from the weight seat is provided with a first torque handle, and the first torque handle is threadedly connected to the first clamp frame.

[0009] Furthermore, in some embodiments, a support wheel is provided above the first roller on the side near the sandpaper roller, and the support wheel is mounted on the first clamp frame via L-shaped brackets on both sides.

[0010] Furthermore, in some embodiments, the first roller is provided with a first toothed coil, and the second roller is provided with a second toothed coil.

[0011] This application uses a cylinder to drive a single-acting gear. When the sandpaper needs to be replaced, the cylinder drives the single-acting gear to rotate through the rack. The single-acting gear drives the second roller to rotate, and the second roller drives the sandpaper to roll out continuously, thus completing the replacement of a new sandpaper on the bottom of the weight holder. This makes sandpaper replacement easier and ensures consistent tension. Attached Figure Description

[0012] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the frame of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 4 This is a schematic diagram of the rack portion in an embodiment of the present invention; Figure 5 This is an exploded view of an embodiment of the present utility model; Figure 6 This is a schematic diagram of the structure of the scroll portion in an embodiment of the present invention; Figure 7 This is a schematic diagram of the contact area in an embodiment of the present invention.

[0013] Explanation of markings in the diagram: Frame 11, winding structure 13, sandpaper 18, second clamp frame 21, first clamp frame 22, weight holder 23, cylinder 24, L-bracket 25, rack 26, single-acting gear 27, sandpaper roller 28, sandpaper roll 29, first torque handle 31, first roller 32, second roller 33, second pressure roller 34, second torque handle 35, support roller 36, first pressure roller 37, first tension seat 38, second tension seat 39, first toothed winding ring 91, second toothed winding ring 92, paper guide groove 93, contact point 94. Detailed Implementation

[0014] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. To further understand the features, technical means, and specific objectives and functions achieved by this utility model, and to analyze its advantages and spirit, a detailed description of this utility model is provided below in conjunction with the accompanying drawings and specific embodiments.

[0015] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "front," "back," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0016] Please refer to the attached drawings. This application aims to provide an automatic sandpaper winding structure for an abrasion testing machine, which is equipped with a cylinder 24 to drive a single-acting gear 27, and the sandpaper 18 is wound out through a roller; making it easier to replace the sandpaper 18 and ensuring consistent tension.

[0017] This application includes a frame 11, on which a rolling structure 13 is provided. The rolling structure 13 includes a second clamp frame 21, a first clamp frame 22, and a weight holder 23. The weight holder 23 is disposed between the second clamp frame 21 and the first clamp frame 22. The weight holder 23 has downwardly inclined symmetrical paper guide grooves 93 on both sides.

[0018] A sandpaper roller 28 is provided on the outer side of the first clamp frame 22 away from the weight base 23. A sandpaper roll 29 is provided on the sandpaper roller 28, and the sandpaper 18 extending from the sandpaper roll 29 is threaded through the first clamp frame 22. A first roller 32 is provided on the side of the first clamp frame 22 near the weight base 23, and the first roller 32 is located above and outside the weight base 23. A movable first tensioning seat 38 is provided inside the frame of the first clamp frame 22. A first pressure roller 37 is provided at the end of the first tensioning seat 38 near the weight base 23. The first pressure roller 37 is pressed against the first roller 32. A paper passage gap D (spacing) is provided between the contact point 94 (closely pressing point) of the first roller 32 and the first pressure roller 37 and the outer side of the weight base 23.

[0019] Furthermore, in one embodiment, a first torque handle 31 is provided at the end of the first tensioning seat 38 away from the weight holder 23, and the first torque handle 31 is threadedly connected to the first clamp frame 22. By rotating the first torque handle 31, the front-to-back displacement of the first tensioning seat 38 within the first clamp frame 22 can be adjusted, thereby adjusting the tension (compression) at the contact point 94 between the first pressure roller 37 and the first roller 32 at the end of the first tensioning seat 38.

[0020] Furthermore, in one embodiment, a support wheel 36 is provided above the side of the first roller 32 near the sandpaper roller 28. The support wheel 36 is mounted on the first clamp frame 22 via L-shaped brackets 25 on both sides. The sandpaper 18 led out from the sandpaper roller 28 passes through the top of the support wheel 36, passes through the contact point 94 (closely against the pressing point) between the first roller 32 and the first pressure roller 37, and then passes through the paper passage gap D (outer side of the weight holder 23) between the contact point 94 of the first roller 32 and the first pressure roller 37 and the weight holder 23, extending into the paper guide groove 93 that is inclined downward on the bottom surface of the weight holder 23.

[0021] Furthermore, in one embodiment, a second roller 33 is provided on the side of the second clamp frame 21 near the weight base 23, and the second roller 33 is located above and outside the weight base 23; a movable second tensioning seat 39 is provided inside the frame of the second clamp frame 21, and a second pressure roller 34 is provided at the end of the second tensioning seat 39 near the weight base 23. The second pressure roller 34 is pressed against the second roller 33, and a paper passage gap D (spacing) is provided between the contact point 94 (closely pressing point) of the second roller 33 and the second pressure roller 34 and the outer side of the weight base 23.

[0022] Furthermore, in one embodiment, a second torque handle 35 is provided at the end of the second tensioning seat 39 away from the weight holder 23, and the second torque handle 35 is threadedly connected to the second clamp frame 21. By rotating the second torque handle 35, the front-to-back displacement of the second tensioning seat 39 within the second clamp frame 21 can be adjusted, thereby adjusting the tension (compression) at the contact point 94 between the second pressure roller 34 and the second roller 33 at the end of the second tensioning seat 39.

[0023] Furthermore, in one embodiment, sandpaper 18 is introduced from the first clamping frame 22 through the paper guide groove 93 on the other side of the bottom surface of the weight seat 23, then passes through the paper passage gap D between the contact point 94 (closely against the pressing point) of the second roller 33 and the second pressure roller 34 and the weight seat 23, and extends to the outside of the contact point 94 (closely against the pressing point) of the second roller 33 and the second pressure roller 34.

[0024] Furthermore, in one embodiment, a single-acting gear 27 is provided at one end of the second roller 33, and a rack 26 with meshing connection is provided on the outer edge of the single-acting gear 27. A cylinder 24 is provided above the rack 26. When it is necessary to replace the sandpaper 18, the cylinder 24 pushes the single-acting gear 27 to rotate through the rack 26. The single-acting gear 27 drives the second roller 33 to rotate, and the second roller 33 drives the sandpaper 18 to roll out continuously, so as to replace a new piece of sandpaper 18 on the bottom surface of the weight holder 23, making it easier to replace the sandpaper 18 on the bottom surface of the weight holder 23, and ensuring consistent tension.

[0025] Furthermore, in one embodiment, the first roller 32 is provided with a first toothed coil 91, and preferably, the weight holder 23 is provided with two thin first toothed coils 91. The second roller 33 is provided with a second toothed coil 92, and preferably, the second roller 33 is provided with four thick and wide second toothed coils 92.

[0026] The above detailed description includes references to the accompanying drawings, which form part of the detailed description. The drawings illustrate, by way of illustration, specific embodiments that can implement the present invention. These embodiments are also referred to herein as "examples". These examples may include other elements besides those shown and described. The inventors also anticipate examples using any combination or arrangement of the shown or described elements, either with respect to a particular example (or one or more aspects thereof) or with respect to other examples shown or described herein (or one or more aspects thereof).

Claims

1. An automatic sandpaper rolling structure for an abrasion testing machine, comprising: The frame (11) is characterized in that a rolling structure (13) is provided on the frame (11), the rolling structure (13) includes a second clamp frame (21), a first clamp frame (22), and a weight seat (23). The weight seat (23) is disposed between the second clamp frame (21) and the first clamp frame (22), and the weight seat (23) is provided with downwardly inclined symmetrical paper guide grooves (93) on both sides. The first clamp frame (22) is provided with a sandpaper roller (28) on the outer side away from the weight seat (23). A sandpaper roll (29) is provided on the sandpaper roller (28). The sandpaper (18) led out from the sandpaper roll (29) is threaded in the first clamp frame (22). The second clamp frame (21) is provided with a second roller (33) on the side near the weight base (23), and the second roller (33) is located above the outer side of the weight base (23); The second clamp frame (21) is provided with a movable second tensioning seat (39) inside the frame. The second tensioning seat (39) is provided with a second pressure roller (34) at one end near the weight seat (23). The second pressure roller (34) is abutted against the second roller (33). A paper passage gap D is provided between the contact point (94) of the second roller (33) and the second pressure roller (34) and the outer side of the weight seat (23). One end of the second roller (33) is provided with a single-acting gear (27), the outer edge of the single-acting gear (27) is provided with a gear rack (26) that meshes with the gear, and a cylinder (24) is provided above the gear rack (26).

2. The automatic sandpaper rolling structure of an abrasion testing machine according to claim 1, characterized in that, The second tension seat (39) is provided with a second torque handle (35) at the end away from the weight seat (23), and the second torque handle (35) is threadedly connected to the second clamp frame (21).

3. The automatic sandpaper rolling structure of an abrasion testing machine according to claim 1, characterized in that, The first clamp frame (22) is provided with a first roller (32) on the side near the weight base (23), and the first roller (32) is located above the outer side of the weight base (23); The first clamp frame (22) has a movable first tensioning seat (38) inside its frame. The first tensioning seat (38) has a first pressure roller (37) at one end near the weight seat (23). The first pressure roller (37) is pressed against the first roller (32). A paper feed gap D is also provided between the contact point (94) of the first roller (32) and the first pressure roller (37) and the outer side of the weight seat (23).

4. The automatic sandpaper rolling structure of an abrasion testing machine according to claim 3, characterized in that, The first tension seat (38) is provided with a first torque handle (31) at the end away from the weight seat (23), and the first torque handle (31) is threadedly connected to the first clamp frame (22).

5. The automatic sandpaper rolling structure of an abrasion testing machine according to claim 3, characterized in that, The first roller (32) has a support wheel (36) above the side of the sandpaper roller (28), and the support wheel (36) is mounted on the first clamp frame (22) through the L brackets (25) on both sides.

6. The automatic sandpaper rolling structure of an abrasion testing machine according to claim 3, characterized in that, The first roller (32) is provided with a first toothed coil (91), and the second roller (33) is provided with a second toothed coil (92).

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