Cutting device for abrasive paper production

Abstract

The utility model provides a cutting device for abrasive paper production, which comprises a working table, an abrasive paper rotating structure and a supporting structure are arranged on the upper surface of the working table in parallel, a sliding groove is arranged on the upper surface of the working table below the supporting structure, a connecting plate is fixedly arranged at the top of one end of the working table, and the abrasive paper rotating structure is arranged between the connecting plate and the supporting structure. A cutting structure is arranged on the connecting plate, and six sets of supporting legs are fixedly installed at the bottom of the workbench. By designing the supporting structure and the cutting structure, a user can rotate the threaded rod through the rotating disc so as to drive the sliding block to move in the sliding groove, the driven shaft and the second supporting plate in the direction away from the first supporting plate, abrasive paper is tightened, the quality of the abrasive paper after cutting is improved, and then the limiting block is rotated around the connecting shaft; the abrasive paper can be limited until the limiting block makes contact with the driving shaft, and the situation that many tiny leftover materials are generated in the abrasive paper cutting process, and waste or damage and size deviation are caused is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting devices, in particular to a cutting device for sandpaper production. Background Art

[0002] Sandpaper, commonly known as sandpaper, is a material used for grinding. It is used to grind the surfaces of metal, wood, etc. to make them smooth and clean. It is usually made of various abrasive grains glued to the base paper. Depending on the different abrasive materials, there are many types of sandpaper, such as emery paper, artificial emery paper, and glass sandpaper. Dry sandpaper is used to polish the surface of wood and bamboo. Water-resistant sandpaper is used to polish the surface of metal or non-metallic workpieces in water or oil. Common shapes are sheets and rolls.

[0003] Nowadays, sandpaper is widely used. It is very common in our lives and work. After the sandpaper is produced, it needs to be cut to meet the use of sandpaper in different situations. At present, some sandpaper cutting equipment has a relatively rough cutting method, which is prone to produce more small scraps, resulting in waste and damage or dimensional deviation, affecting the quality of the cut.

[0004] Therefore, in response to the above problems, we propose a cutting device for sandpaper production. Utility Model Content

[0005] The purpose of the present utility model is to provide a cutting device for sandpaper production to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a cutting device for sandpaper production, comprising a workbench, a sandpaper rotating structure and a supporting structure arranged side by side on the upper surface of the workbench, a slide groove being provided on the upper surface of the workbench below the supporting structure, a connecting plate being fixedly installed on the top of one end of the workbench, wherein the sandpaper rotating structure is located between the connecting plate and the supporting structure, a cutting structure being provided on the connecting plate, and six sets of legs being fixedly installed on the bottom of the workbench.

[0007] As a further description of the present invention: the supporting structure includes a second supporting plate, a driven shaft is rotatably connected inside the second supporting plate, a slider adapted to the slide groove is fixedly installed on the bottom of the second supporting plate, a threaded rod is threadedly connected inside the slider, both ends of the threaded rod are rotatably connected to the workbench, and a turntable is fixedly installed on one end of the threaded rod.

[0008] As a further description of the present invention: the sandpaper rotating structure includes a first support plate, the first support plate is fixedly mounted on the upper surface of the workbench, a driving shaft is rotatably connected inside the first support plate, sandpaper is arranged between the driving shaft and the driven shaft, a pulley is fixedly mounted at one end of the driving shaft, and the pulley is connected to the external motor power through a belt.

[0009] As a further description of the present invention: the cutting structure includes connecting arms, two groups of connecting arms are rotatably connected with a rotating shaft, and multiple groups of cutting knives are fixedly sleeved on the rotating shaft, and the cutting knives are located directly above the driving shaft.

[0010] As a further description of the present invention: a fixed block is fixedly installed at one end of the connecting arm away from the rotating shaft, a rotating shaft is rotatably connected between the fixed block and the connecting plate, a torsion spring is sleeved on the rotating shaft, and the two ends of the torsion spring are respectively fixedly connected to the connecting plate and the fixed block.

[0011] As a further description of the present invention: a connecting shaft is fixedly installed at one end of the front side of the rotating shaft, a limit block is rotatably sleeved on the connecting shaft, a semicircular groove is provided at the end of the limit block away from the connecting shaft, and the inner diameter of the semicircular groove matches the outer diameter of the driving shaft.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model designs a supporting structure and a cutting structure on a cutting device for sandpaper production. When in use, the sandpaper is sleeved on the active shaft and the driven shaft. At this time, the sandpaper is in a relaxed state. Then the user can rotate the threaded rod through the turntable to drive the slider to move in the slide groove, the driven shaft and the second support plate in the direction away from the first support plate to tighten the sandpaper. When the sandpaper is tightened, the connecting arm is rotated around the rotating shaft until the cutting knife rotates to contact the sandpaper. After the cutting knife rotates to a specified position, the limit block is rotated around the connecting shaft until the limit block contacts the active shaft to limit the sandpaper, thereby reducing the generation of a large number of fine scraps in the sandpaper cutting process, resulting in waste or damage and dimensional deviation, and improving the quality of the sandpaper after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the workbench and its component structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the cutting structure of the utility model;

[0017] Figure 4This is a schematic diagram of the sandpaper rotating structure of the present utility model;

[0018] Figure 5 This is a schematic diagram of the cutting structure of the present utility model.

[0019] In the figure: 1. workbench; 2. sandpaper rotating structure; 201. first support plate; 202. driving shaft; 203. pulley; 3. supporting structure; 301. second support plate; 302. driven shaft; 303. slider; 304. threaded rod; 305. turntable; 4. slide; 5. sandpaper; 6. connecting plate; 7. cutting structure; 701. connecting arm; 702. rotating shaft; 703. cutting knife; 704. fixing block; 705. rotating shaft; 706. connecting shaft; 707. limit block; 8. support leg. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 5 The utility model provides a technical solution: a cutting device for sandpaper production, comprising a workbench 1, a sandpaper rotating structure 2 and a supporting structure 3 are arranged side by side on the upper surface of the workbench 1, a slide groove 4 is provided on the upper surface of the workbench 1 below the supporting structure 3, a connecting plate 6 is fixedly installed on the top of one end of the workbench 1, wherein the sandpaper rotating structure 2 is located between the connecting plate 6 and the supporting structure 3, a cutting structure 7 is provided on the connecting plate 6, and six groups of legs 8 are fixedly installed on the bottom of the workbench 1.

[0022] In this embodiment: the support structure 3 includes a second support plate 301, a driven shaft 302 is rotatably connected inside the second support plate 301, a slider 303 adapted to the slide groove 4 is fixedly installed at the bottom of the second support plate 301, a threaded rod 304 is threadedly connected inside the slider 303, both ends of the threaded rod 304 are rotatably connected to the workbench 1, and a turntable 305 is fixedly installed at one end of the threaded rod 304.

[0023] During specific use: the turntable 305 rotates the threaded rod 304 to drive the slider 303 to move in the direction away from the first support plate 201 along the slide groove 4, the driven shaft 302 and the second support plate 301 to tighten the sandpaper 5 and improve the cutting quality of the sandpaper 5.

[0024] In this embodiment: the sandpaper rotating structure 2 includes a first support plate 201, the first support plate 201 is fixedly mounted on the upper surface of the workbench 1, the first support plate 201 is internally connected to a driving shaft 202 for rotation, sandpaper 5 is arranged between the driving shaft 202 and the driven shaft 302, and a pulley 203 is fixedly mounted at one end of the driving shaft 202, and the pulley 203 is connected to the external motor power through a belt.

[0025] During specific use, an external motor can drive the pulley 203 and the driving shaft 202 to rotate via a belt, so as to drive the sandpaper 5 to rotate, thereby cooperating with the cutting knife 703 to perform cutting.

[0026] In this embodiment, the cutting structure 7 includes connecting arms 701 , and a rotating shaft 702 is rotatably connected between two groups of connecting arms 701 . A plurality of groups of cutting knives 703 are fixedly sleeved on the rotating shaft 702 . The cutting knives 703 are located directly above the driving shaft 202 .

[0027] When used specifically, the cutting knife 703 can cut the sandpaper 5 .

[0028] In this embodiment: a fixed block 704 is fixedly installed at one end of the connecting arm 701 away from the rotating shaft 702, and a rotating shaft 705 is rotatably connected between the fixed block 704 and the connecting plate 6. A torsion spring is sleeved on the rotating shaft 705, and the two ends of the torsion spring are fixedly connected to the connecting plate 6 and the fixed block 704 respectively.

[0029] During specific use, the torsion spring can provide pressure for the fixed block 704 and the connecting arm 701 to rotate, so as to drive the cutting blade 703 to fit the sandpaper 5 sleeved on the driving shaft 202 .

[0030] In this embodiment: a connecting shaft 706 is fixedly installed at one end of the front of the rotating shaft 702, and a limit block 707 is rotatably sleeved on the connecting shaft 706. A semicircular groove is provided at the end of the limit block 707 away from the connecting shaft 706, and the inner diameter of the semicircular groove matches the outer diameter of the driving shaft 202.

[0031] During specific use: the limit block 707 can rotate around the connecting shaft 706, so that one end of the limit block 707 contacts the active shaft 202 through the semicircular groove, thereby limiting the sandpaper 5 being cut by the limit block 707 to reduce the deviation caused by left and right shaking during the cutting process of the sandpaper 5.

[0032] Working principle: When in use, the sandpaper 5 is sleeved on the active shaft 202 and the driven shaft 302. At this time, the sandpaper 5 is in a relaxed state. Then the user can rotate the threaded rod 304 through the turntable 305 to drive the slider 303 to move in the slide groove 4, the driven shaft 302 and the second support plate 301 in the direction away from the first support plate 201 to tighten the sandpaper 5. When the sandpaper 5 is tightened, the connecting arm 701 is rotated around the rotating shaft 705 until the cutting knife 703 rotates to contact the sandpaper 5. After the cutting knife 703 rotates to the specified position, the limit block 707 is rotated around the connecting shaft 706 until the limit block 707 contacts the active shaft 202 to limit the sandpaper 5, thereby reducing the generation of more fine scraps during the cutting process of the sandpaper 5, resulting in waste or damage and dimensional deviation, and improving the quality of the sandpaper 5 after cutting.

[0033] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cutting device for sandpaper production, comprising a workbench (1), characterized in that: A sandpaper rotating structure (2) and a supporting structure (3) are arranged in parallel on the upper surface of the workbench (1); a slide groove (4) is provided on the upper surface of the workbench (1) below the supporting structure (3); a connecting plate (6) is fixedly installed on the top of one end of the workbench (1), wherein the sandpaper rotating structure (2) is located between the connecting plate (6) and the supporting structure (3); a cutting structure (7) is arranged on the connecting plate (6); and six groups of supporting legs (8) are fixedly installed on the bottom of the workbench (1).

2. A cutting device for sandpaper production according to claim 1, characterized in that: The support structure (3) comprises a second support plate (301), the second support plate (301) is internally rotatably connected to a driven shaft (302), a slider (303) adapted to the slide groove (4) is fixedly mounted on the bottom of the second support plate (301), a threaded rod (304) is internally threadedly connected to the slider (303), both ends of the threaded rod (304) are rotatably connected to the workbench (1), and a turntable (305) is fixedly mounted on one end of the threaded rod (304).

3. A cutting device for sandpaper production according to claim 2, characterized in that: The sandpaper rotating structure (2) comprises a first support plate (201), the first support plate (201) being fixedly mounted on the upper surface of the workbench (1), a driving shaft (202) being rotatably connected inside the first support plate (201), sandpaper (5) being arranged between the driving shaft (202) and a driven shaft (302), a pulley (203) being fixedly mounted on one end of the driving shaft (202), and the pulley (203) being connected to an external motor power via a belt.

4. A cutting device for sandpaper production according to claim 3, characterized in that: The cutting structure (7) comprises connecting arms (701), two groups of connecting arms (701) are rotatably connected to a rotating shaft (702), and a plurality of groups of cutting knives (703) are fixedly sleeved on the rotating shaft (702), and the cutting knives (703) are located directly above the driving shaft (202).

5. A cutting device for sandpaper production according to claim 4, characterized in that: A fixed block (704) is fixedly mounted on one end of the connecting arm (701) away from the rotating shaft (702), a rotating shaft (705) is rotatably connected between the fixed block (704) and the connecting plate (6), a torsion spring is sleeved on the rotating shaft (705), and two ends of the torsion spring are fixedly connected to the connecting plate (6) and the fixed block (704), respectively.

6. A cutting device for sandpaper production according to claim 4, characterized in that: A connecting shaft (706) is fixedly mounted on one end of the front face of the rotating shaft (702), a limit block (707) is rotatably sleeved on the connecting shaft (706), and a semicircular groove is formed at one end of the limit block (707) away from the connecting shaft (706), wherein the inner diameter of the semicircular groove matches the outer diameter of the driving shaft (202).

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