Fork arm double-wheel counter-rotating straight pushing knife sharpening mechanism

Abstract

The invention provides a fork arm double-wheel counter-rotating straight pushing knife sharpening mechanism. The fork arm double-wheel counter-rotating straight pushing knife sharpening mechanism comprises a double-wheel knife sharpening assembly and a knife sharpening motor. The double-wheel sharpening assembly is connected with a sharpening motor through a connecting panel, and the connecting panel is further connected with a direct pushing air cylinder. The anti-shaking knife sharpening mode that double wheels of an integral fork arm support rotate oppositely is adopted, an external motor is used, the using, manufacturing and maintaining cost is reduced, a linear guide rail is pushed through a direct pushing type air cylinder, a connecting panel drives a double-wheel knife sharpening assembly to push the double-wheel knife sharpening assembly to the direction of a cutter, and the purposes that the double-wheel knife sharpening assembly makes contact with the cutter and conducts grinding in the shortest time efficiency are achieved; and the constant angle of repeated knife sharpening is achieved through the flat pushing knife sharpening mode, the knife back is prevented from being abraded and cut by repeated knife sharpening, and the function that the double-wheel grinding wheel protects the groove of the special double-groove cut-off knife for the airtight fabric is achieved. In the operation process of the double grinding wheels, the rubber rings are used as main consumables, and the advantages of being low in manufacturing cost and low in maintenance cost are achieved. The grinding rings of the double grinding wheels are designed at intervals, the machining quality can be improved, and the service life of the grinding wheels can be prolonged.

Description

Technical Field

[0001] This invention relates to the field of sharpening device technology, and more specifically to a sharpening mechanism with forked arms, double wheels, counter-rotating and direct-push. Background Technology

[0002] Currently, in the field of computer cutting machine technology, CNC automatic cutting machines are a new type of automated production machinery for garment manufacturing. They are used for the overall cutting of various garment materials and for high-speed mass production. In this process, the cutting blade module is the core component. After multiple production processes, the various cutting blades in the cutting blade module will become dull, the blade edge angle will change, and various oil stains and fibers will adhere to them. Therefore, they need to be sharpened and cleaned. Existing CNC automatic cutting machines are equipped with cutting blade sharpening mechanisms to sharpen the cutting blades, such as the belt abrasive sharpening structure with patent number CN202023166806.8, which is mainly used for sharpening cutting machines.

[0003] Furthermore, the existing cutting blade and cutting blade grinding device requires a significant amount of manpower and resources to unload the cutting blade after stopping the equipment and then grinding it. If the grinding machine and cutting blade are integrated into a single assembly, the fixture replacement time will be greatly reduced, thereby improving production efficiency.

[0004] In view of this, we have invented a forked arm double wheel counter-rotating straight push grinding mechanism. Summary of the Invention

[0005] The purpose of this invention is to provide a forked-arm, double-wheel, counter-rotating, direct-push grinding mechanism. This mechanism employs an external motor combination with counter-rotating double wheels, which not only improves processing quality but also extends the service life of the grinding wheels. Furthermore, during the high-speed operation of the double grinding wheels, the main consumable is a rubber ring, offering advantages in low manufacturing and maintenance costs. Additionally, the use of a direct-push cylinder for propulsion allows for strong CNC operability and simple operation. The flat-push grinding method ensures a constant angle for repeated grinding, avoiding repeated grinding of the blade back and protecting the grooves of the double-groove cutting blades for non-breathable fabrics.

[0006] To solve the above-mentioned technical problems, the objective of this invention is achieved as follows:

[0007] A fork-arm double-wheel counter-rotating direct-push grinding mechanism includes a double-wheel grinding assembly and a grinding motor for driving the double-wheel grinding assembly.

[0008] The dual-wheel sharpening assembly is connected to the sharpening motor via a connecting panel, and a direct-push cylinder is also connected to the connecting panel;

[0009] The dual-wheel grinding assembly includes symmetrically arranged grinding wheels and a fork-arm grinding bracket. The grinding wheels are detachably fixed to the fork-arm grinding bracket via a grinding wheel fixing shaft. The fork-arm grinding bracket includes a column and side plates for fixing both ends of the grinding wheel. The two columns are connected and fixed by an arc-shaped plate, and the arc-shaped plate extends from one end away from the column, and the extension is connected to the connecting panel.

[0010] The connecting panel includes a U-shaped groove and a connecting panel side plate. A slider is provided in the U-shaped groove, and a linear guide rail is installed on the slider. The side of the connecting panel away from the slider is in contact with the extension. A motor connecting plate is snapped onto the connecting panel side plate.

[0011] The motor connection plate includes an integrally formed connection part and a main motor connection plate. The connection part is fixed to the side plate of the connection panel, and a cylinder mounting bracket is installed on the side of the connection part away from the side plate of the connection panel. The direct-push cylinder is fixed on the cylinder mounting bracket. The main motor connection plate has a fixed number of threaded holes, and the grinding motor is connected to the main motor connection plate through the threaded holes.

[0012] The grinding motor includes a motor body and a transmission pulley shaft. The transmission pulley shaft protrudes from the main board of the motor connecting plate, and two motor pulleys are arranged from top to bottom on the protruding part. Rubber rings are fitted on the motor pulleys to form a transmission connection with the grinding wheel.

[0013] Furthermore, the grinding wheel can be detachably fixed by a threaded connection or a nut and bolt connection.

[0014] Furthermore, the fork arm grinding bracket is integrally formed.

[0015] Furthermore, the arc-shaped plate protrudes from one side of one of the columns and extends to the parallel side of another column to form an extension. The panel of the extension has a number of mounting holes.

[0016] Furthermore, the column is also provided with a rubber ring positioning groove.

[0017] Furthermore, the grinding wheel includes a spindle, a groove, and a number of abrasive rings disposed on the surface of the spindle; the motor pulley is connected to the groove on the grinding wheel via the rubber ring.

[0018] Furthermore, the rubber band includes rubber band A and rubber band B; the grinding wheel includes grinding wheel A and grinding wheel B; and the motor pulley includes motor pulley A and motor pulley B.

[0019] Furthermore, the motor pulley A is connected to the grinding wheel A via a rubber ring A, and the motor pulley B is connected to the grinding wheel B via a rubber ring B.

[0020] Furthermore, the grinding ring on the grinding wheel A is spaced apart from the grinding ring on the grinding wheel B.

[0021] Furthermore, the cylinder mounting bracket includes a mounting extension plate and a mounting support frame that fits against the connecting part. The mounting extension plate is connected to the direct-push cylinder. A hook-shaped stabilizing block is also fixed on the mounting support frame, and the hook-shaped stabilizing block clamps the direct-push cylinder. The distance between the hook-shaped stabilizing block and the mounting support frame is two-thirds of the length of the entire mounting support frame.

[0022] The beneficial effects of this invention are:

[0023] Compared with existing technologies, the dual-wheel counter-rotating direct-push grinding mechanism of this invention adopts a vibration-resistant and bounce-free grinding method with counter-rotating dual wheels and forked arms. This not only reduces manufacturing and maintenance costs by using an external motor, but also utilizes a practical direct-push cylinder to drive the linear guide rail, thereby pushing the dual-wheel grinding assembly towards the cutting blade via the connecting panel. This achieves the goal of contacting and grinding the cutting blade without jumping in the shortest possible time. Furthermore, the flat-push grinding method ensures a constant angle for repeated grinding, avoiding repeated grinding of the blade back and protecting the grooves of the double-groove cutting blade for non-breathable fabrics. During the high-speed operation of the dual grinding wheels, the main consumable is a rubber ring, which has the advantages of low manufacturing and maintenance costs. In addition, the spacing design of the grinding rings on the two dual grinding wheels not only improves processing quality but also extends the service life of the grinding wheels. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the present invention from another perspective;

[0027] Figure 3 This is the front view of the present invention;

[0028] Figure 4 This is a top view of the present invention;

[0029] Figure 5 This is a side view of the structure of the present invention;

[0030] Figure 6 This is a schematic diagram showing the connection between the dual-wheel grinding tool assembly and the connecting panel of the present invention;

[0031] Figure 7 This is a physical image of the present invention.

[0032] In the diagram, 1-Double-wheel grinding assembly; 11-Grinding wheel; 1101-Grinding wheel A; 1102-Grinding wheel B; 12-Fork-arm grinding bracket; 121-Column; 122-Side plate; 123-Arc-shaped plate; 124-Extension; 125-Mounting hole; 13-Grinding wheel fixing shaft; 2-Grinding motor; 21-Motor body; 22-Transmission pulley shaft; 23-Motor pulley; 2301-Motor pulley A; 2302-Motor pulley B; 3-Connecting panel; 31-U-shaped groove; 32-Connecting panel side plate ; 4-Direct push cylinder; 5-Slider; 6-Linear guide rail; 61-Column; 62-Side plate; 7-Motor connecting plate; 71-Connecting part; 72-Motor connecting plate main board; 71-Spindle; 72-Groove; 73-Frosted ring; 8-Cylinder mounting bracket; 81-Mounting extension plate; 82-Mounting support bracket; 83-Hook-type stabilizing block; 9-Rubber ring; 901-Rubber ring A; 902-Rubber ring B; 111-Spindle; 112-Groove; 113-Frosted ring; 1211-Rubber ring positioning groove. Detailed Implementation

[0033] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0034] like Figure 1-6As shown, a forked-arm double-wheel counter-rotating direct-push grinding mechanism includes a double-wheel grinding assembly 1 and a grinding motor 2 that drives the double-wheel grinding assembly 1. The double-wheel grinding assembly is connected to the grinding motor 2 via a connecting panel 3, and a direct-push cylinder 4 is also connected to the connecting panel 3. The double-wheel grinding assembly 1 includes symmetrically arranged grinding wheels 11 and forked-arm grinding brackets 12. The grinding wheels 11 are detachably fixed to the forked-arm grinding brackets 12 via grinding wheel fixing shafts 13. The forked-arm grinding brackets 12 include columns 121 and side plates 122 that fix the two ends of the grinding wheels 11. The two columns 121 are connected and fixed together by an arc-shaped plate 123, and the arc-shaped plate 123 extends with an extension 124 at one end away from the column 121. The extension 124 is connected to the connecting panel 3. The connecting panel 3 includes a U-shaped groove 31 and a connecting panel side plate 32. A slider 5 is provided in the U-shaped groove 31. A linear guide rail 6 is installed on the slider 5; the side of the connecting panel 3 away from the slider 5 is in contact with the extension part 124; a motor connecting plate 7 is snapped onto the side plate 32 of the connecting panel; the motor connecting plate 7 includes an integrally formed connecting part 71 and a main motor connecting plate 72, the connecting part 71 is fixed on the side plate 32 of the connecting panel, and a cylinder mounting bracket 8 is installed on the side of the connecting part 71 away from the side plate 32 of the connecting panel, and the direct-push cylinder 4 is fixed on the cylinder mounting bracket 8; a fixed number of threaded holes are provided on the main motor connecting plate 72, and the grinding motor 2 is connected to the main motor connecting plate 72 through the threaded holes; the grinding motor 2 includes a motor body 21 and a transmission pulley shaft 22, the transmission pulley shaft 22 protrudes from the main motor connecting plate 72, and two motor pulleys 23 are arranged from top to bottom on the protruding part; a rubber ring 9 is fitted on the motor pulley 23 to form a transmission connection with the grinding wheel 11.

[0035] Furthermore, the detachable fixing method of the grinding wheel 11 is a threaded connection or a nut and bolt connection. Preferably, this embodiment uses a threaded connection, which facilitates the connection, use, and disassembly of various components, and makes maintenance and replacement convenient. Furthermore, the fork-arm grinding bracket 12 is integrally formed, creating a Y-shaped fork arm, which avoids uneven connections between the column 121, side plate 122, arc plate 123, and extension 124 that could lead to misalignment of the grinding wheels 11 and affect the grinding efficiency of the cutting tool.

[0036] Specifically, the arc-shaped plate 123 protrudes from one side of one of the columns 121 and extends to the parallel side of another column 121, forming an extension 124. The panel of the extension 124 has a plurality of mounting holes 125. Furthermore, the U-shaped groove 31 of the connecting panel 3 also has corresponding threaded holes, allowing for bolt fixing via the mounting holes 125 and the threaded holes, thus achieving a detachable connection and fixation between the dual-wheel grinding tool assembly 1, the connecting panel 3, and the motor connecting plate 7.

[0037] Furthermore, a slider 5 is provided within the U-shaped groove 31, and a linear guide rail 6 is mounted on the slider 5. With the use of the direct-push cylinder 4, the linear guide rail 6 moves parallel to the direct-push cylinder 4, thereby achieving the horizontal pushing purpose of the entire mechanism. Further still, a cylinder mounting bracket 8 is mounted on the side of the connecting part 71 away from the connecting panel side plate 32. The cylinder mounting bracket 8 includes a mounting extension plate 81 and a mounting support bracket 82 that fits against the connecting part 71. The mounting extension plate 81 is connected to the direct-push cylinder 4, and a hook-shaped stabilizing block 83 is fixed on the mounting support bracket 82. The hook-shaped stabilizing block 83 clamps the direct-push cylinder 4, thereby ensuring the stability of the system during use. Preferably, the distance between the hook-shaped stabilizing block 83 and the mounting support bracket 82 is two-thirds of the length of the entire mounting support bracket 82. The placement position of the hook-shaped stabilizing block 83 was determined based on the mass of the cylinder used and the mechanical force analysis. Depending on the quality of different cylinders and the operating environment, the position of the hook-shaped stabilizing block 83 needs to be adjusted accordingly. The flat-push grinding method used in this embodiment achieves a constant angle for repeated grinding, avoiding repeated grinding and cutting of the blade back, and realizing the protective function of the double-wheel grinding wheels for the grooves of the special double-groove cutting blade for non-breathable fabrics.

[0038] Furthermore, the grinding wheel 11 includes a spindle 111, a groove 112, and a plurality of abrasive rings 113 disposed on the surface of the spindle 111; the motor pulley 23 is connected to the groove 112 on the grinding wheel 11 via the rubber ring 9. Further, the rubber ring 9 includes rubber ring A901 and rubber ring B902; the grinding wheel 11 includes grinding wheel A1101 and grinding wheel B1102; the motor pulley 23 includes motor pulley A2301 and motor pulley B2302. Further, the motor pulley A2301 is connected to the grinding wheel A1101 via the rubber ring A901, and the motor pulley B2302 is connected to the grinding wheel B1102 via the rubber ring B902.

[0039] Furthermore, the column 121 is also provided with a rubber ring positioning groove 1211. The rubber ring A901 is fitted onto the motor pulley A2301 and forms a transmission connection with the grinding wheel A1101 through the rubber ring positioning groove 1211, thus forming the connection method of the grinding wheel A1101. At this time, the rubber ring A901 is parallel and does not cross. For the grinding wheel B1102, the rubber ring B902 is fitted onto the motor pulley B2302 and forms a transmission connection with the grinding wheel B1102 through the rubber ring positioning groove 1211. At this time, the rubber ring B902 is in a crossed state. Since the motor pulleys A2301 and B2302 are designed in a vertical sequence, there is a certain distance between the rubber rings A901 and B902 in the vertical direction, which prevents mutual friction and wear between the rubber rings.

[0040] Furthermore, the grinding rings 113 on grinding wheel A1101 are spaced apart from those on grinding wheel B1102. To achieve this, grinding wheels A and B are the same size, meaning the spacing between two adjacent grinding rings is also the same. Grinding wheels A and B are designed with their ends reversed, so that the grinding rings of grinding wheel A are spaced apart from those on grinding wheel B. For easy distinction, the portion of the grinding wheel spindle with more protrusion is called the beginning end, and the other end is called the end end. Grinding wheels A and B are designed with their ends reversed; grinding wheel A is mounted on a fixed frame in the usual manner, with the spindle beginning end, a number of grinding rings, and the spindle end arranged from top to bottom. Grinding wheel B is mounted on a fixed frame, with the spindle end, a number of grinding rings, and the spindle beginning end arranged from top to bottom. This creates the spaced arrangement of the grinding rings on grinding wheel A and grinding wheel B. This design significantly improves grinding efficiency, shortens processing cycles, and helps achieve uniform grinding texture and high-quality machined surfaces, reducing defects such as scratches. Furthermore, the offset design reduces abnormal wear on the grinding wheel, extending its service life and lowering production costs.

[0041] Unless otherwise specified, in this invention, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this invention are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0042] Unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" in this invention should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A forked-arm double-wheel counter-rotating straight-push grinding mechanism, characterized in that, include: A dual-wheel sharpening assembly (1) and a sharpening motor (2) that drives the dual-wheel sharpening assembly (1) to operate; The double-wheel sharpening fork arm assembly is connected to the sharpening motor (2) via a connecting panel (3), and a direct-push cylinder (4) is also connected to the connecting panel (3). The dual-wheel grinding assembly (1) includes symmetrically arranged grinding wheels (11) and a fork-arm grinding bracket (12). The grinding wheels (11) are detachably fixed to the fork-arm grinding bracket (12) via a grinding wheel fixing shaft (13). The fork-arm grinding bracket (12) includes a column (121) and side plates (122) for fixing both ends of the grinding wheels (11). The two columns (121) are connected and fixed together by an arc-shaped plate (123), and an extension (124) extends from the end of the arc-shaped plate (123) away from the column (121). The extension (124) is connected to the connecting panel (3). (The corresponding names need to be consistent, otherwise it will cause ambiguity and violate the provisions of the patent law.) The connecting panel (3) includes a U-shaped groove (31) and a connecting panel side plate (32). A slider (5) is provided in the U-shaped groove (31), and a linear guide rail (6) is installed on the slider (5). The side of the connecting panel (3) away from the slider (5) is in contact with the extension (124). A motor connecting plate (7) is snapped onto the connecting panel side plate (32). The motor connecting plate (7) includes an integrally formed connecting part (71) and a motor connecting plate main board (72). The connecting part (71) is fixed on the side plate (32) of the connecting panel, and a cylinder mounting bracket (8) is installed on the side of the connecting part (71) away from the side plate (32). The direct-push cylinder (4) is fixed on the cylinder mounting bracket (8). The motor connecting plate main board (72) is provided with a fixed number of threaded holes, and the grinding motor (2) is connected to the motor connecting plate main board (72) through the threaded holes. The grinding motor (2) includes a motor body (21) and a transmission pulley shaft (22). The transmission pulley shaft (22) protrudes from the main board of the motor connecting plate (72), and the protruding part is provided with two motor pulleys (23) from top to bottom. A rubber ring (9) is fitted on the motor pulley (23) to form a transmission connection with the grinding wheel (11).

2. The forked-arm double-wheel counter-rotating straight-push grinding mechanism according to claim 1, characterized in that, The grinding wheel (11) can be detachably fixed by threaded connection or nut and bolt connection.

3. The forked-arm double-wheel counter-rotating straight-push grinding mechanism according to claim 1, characterized in that, The grinding tool holder (12) is integrally formed.

4. The forked-arm double-wheel counter-rotating straight-push grinding mechanism according to claim 1, characterized in that, The arc-shaped plate (123) is formed by protruding from one side of one column (121) and extending to the parallel side of another column (121) to form an extension (124). The panel of the extension (124) is provided with a number of mounting holes (125).

5. The forked-arm double-wheel counter-rotating straight-push grinding mechanism according to claim 1, characterized in that, The column (121) is also provided with a rubber ring positioning groove (1211).

6. The forked-arm double-wheel counter-rotating straight-push grinding mechanism according to claim 1, characterized in that, The grinding wheel (11) includes a spindle (111), a groove (112), and a number of abrasive rings (113) disposed on the surface of the spindle (111); the motor pulley (23) is connected to the groove (112) on the grinding wheel (11) through the rubber ring (9).

7. The forked-arm double-wheel counter-rotating straight-push grinding mechanism according to claim 6, characterized in that, The rubber ring (9) includes rubber ring A (901) and rubber ring B (902); the grinding wheel (11) includes grinding wheel A (1101) and grinding wheel B (1102); the motor pulley (23) includes motor pulley A (2301) and motor pulley B (2302).

8. The forked-arm double-wheel counter-rotating straight-push grinding mechanism according to claim 7, characterized in that, The motor pulley A (2301) is connected to the grinding wheel A (1101) via a rubber ring A (901), and the motor pulley B (2302) is connected to the grinding wheel B (1102) via a rubber ring B (902).

9. A fork-arm double-wheel counter-rotating straight-push grinding mechanism according to claim 8, characterized in that, The grinding ring (113) on the grinding wheel A (1101) is spaced apart from the grinding ring (113) on the grinding wheel B (1102).

10. The forked-arm double-wheel counter-rotating straight-push grinding mechanism according to claim 1, characterized in that, The cylinder mounting bracket (8) includes a mounting extension plate (81) and a mounting support bracket (82) that fits against the connecting part (71). The mounting extension plate (81) is connected to the direct-push cylinder (4). A hook-shaped stabilizing block (83) is also fixed on the mounting support bracket (82). The hook-shaped stabilizing block (83) clamps the direct-push cylinder (4). The distance between the hook-shaped stabilizing block (83) and the mounting support bracket (82) is two-thirds of the length of the entire mounting support bracket (82).

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