A handheld cloth cutting machine

Abstract

The utility model discloses a handheld cloth cutting machine, comprising a blade, a driving body and a grinding assembly; the blade is used for cutting cloth, the blade is connected to the driving body, and the driving body is used for driving the blade to rotate; the grinding assembly comprises a mounting frame, two grinding wheels arranged in parallel and a fixing member connected to the driving body; the grinding wheel is mounted on the mounting frame and can rotate freely relative to the mounting frame; the two grinding wheels are respectively arranged on both sides of the blade and can contact the blade; the mounting frame is hinged with the fixing member so that the grinding wheel is close to the blade edge of the blade under the action of its own gravity, and when the driving body drives the blade to rotate, the grinding wheel can grind the blade to make the blade sharp, thereby solving the problem that the blade of the cloth cutting machine is easily blunted and scrapped.

Description

Technical Field

[0001] The utility model relates to the field of cloth cutting machines, in particular to a handheld cloth cutting machine. Background Art

[0002] In the existing textile production and processing, cutting fabric is an inevitable process. The existing fabric cutting machines include straight knife type fabric cutting machines. However, when cutting thick or multi-layered fabrics, the straight knife type fabric cutting machines have poor cutting effects and are inconvenient to use. On the other hand, when cutting fabrics, since the fabrics are flexible materials, the blades of the fabric cutting machine rub against the fabrics for a long time, which can easily cause the cutter to heat up, soften, and even become blunt, thereby affecting the service life of the blades. Utility Model Content

[0003] The utility model aims to provide a handheld cloth cutting machine to solve the problem that the blade of the cloth cutting machine is easily blunted and scrapped.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A handheld cloth cutting machine comprises a blade, a driving body and a grinding assembly;

[0006] The blade is used for cutting cloth, the blade is connected to the driving body, and the driving body is used for driving the blade to rotate;

[0007] The grinding assembly comprises a mounting frame, two parallel grinding wheels and a fixing member connected to the driving body; the grinding wheel is mounted on the mounting frame and can rotate freely relative to the mounting frame; the two grinding wheels are respectively arranged on both sides of the blade and can contact the blade;

[0008] The mounting frame is hinged to the fixing member so that the grinding wheel is close to the blade of the blade under the action of its own weight. When the driving body drives the blade to rotate, the grinding wheel can sharpen the blade.

[0009] In one embodiment, the periphery of the grinding wheel is provided with a plurality of first convex rings arranged in parallel at intervals; the periphery of the other grinding wheel is also provided with a plurality of second convex rings arranged in parallel at intervals; the second convex rings are accommodated in the gaps formed by adjacent first convex rings; the first convex rings are accommodated in the gaps formed by adjacent second convex rings; and there is a distance between the first convex ring and the other grinding wheel, and there is a distance between the second convex ring and the other grinding wheel.

[0010] In one embodiment, outer surfaces of the first convex ring and the second convex ring are sprayed with wear-resistant material.

[0011] In one embodiment, the grinding assembly further includes a torsion spring and an axle pin, the torsion spring having a first output end and a second output end, the torsion spring being sleeved on the axle pin, and the first output end being fixedly connected to the mounting frame, and the second output end being fixedly connected to the fixing member.

[0012] In one embodiment, the fixing member includes a first connecting portion, a second connecting portion and a first fixing portion; the second connecting portion and the first connecting portion rotate together in a plane perpendicular to the blade; the first connecting portion is connected to the mounting frame; the second connecting portion is fixed to the first fixing portion; and the first fixing portion is installed on the driving body.

[0013] In one embodiment, the first fixing portion is further provided with a protrusion; the mounting frame has a matching groove, and after the mounting frame rotates along the rotating shaft of the second connecting portion, the protrusion is received in the matching groove.

[0014] In one embodiment, the edge of the blade is formed of six arc-shaped blades arranged in a circular array, and the tangent angle at the connection between adjacent arc-shaped blades is an obtuse angle.

[0015] In one embodiment, a cutting support frame is further included, wherein the cutting support frame is connected to the driving body, and the cutting support frame has a hollow portion, wherein the hollow portion is disposed below the blade and is used to allow debris generated by sharpening to fall off.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The technical solution of the utility model is to arrange a grinding wheel in the handheld cloth cutting machine, and the grinding wheel can approach the edge of the blade by means of its own gravity. When the driving body drives the blade to rotate, the grinding wheel can sharpen the blade to make the blade sharp, thereby solving the problem that the blade is easily blunted and scrapped. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 2 for Figure 1 AA section view in the figure;

[0022] Figure 3 This is a structural schematic diagram of another embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of a partial structure of an embodiment of the utility model;

[0024] Illustrations: 100, hand-held cloth cutting machine; 110, blade; 120, driving body; 130, grinding assembly; 131, mounting frame; 131a, matching groove; 132, grinding wheel; 132a, first convex ring; 132b, second convex ring; 133, fixing member; 1331, first connecting part; 1332, second connecting part; 1333, first fixing part; 1334, protrusion; 134, torsion spring; 1341, first output end; 1342, second output end; 135, shaft pin; 140, cutting support frame; 140a, hollow part. DETAILED DESCRIPTION

[0025] In order to make the technical purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0027] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0028] An embodiment of the present invention provides a handheld cloth cutting machine 100 .

[0029] See also Figure 1 and Figure 2 , the handheld cloth cutting machine 100 comprises a blade 110, a driving body 120 and a grinding assembly 130;

[0030] The blade 110 is used for cutting cloth, and the blade 110 is connected to the driving body 120, and the driving body 120 is used for driving the blade 110 to rotate;

[0031] The grinding assembly 130 includes a mounting frame 131, two parallel grinding wheels 132, and a fixing member 133 connected to the driving body 120; the grinding wheel 132 is mounted on the mounting frame 131 and can rotate freely relative to the mounting frame 131; the two grinding wheels 132 are respectively arranged on both sides of the blade 110 and can contact the blade 110;

[0032] The mounting frame 131 is hinged to the fixing member 133 so that the grinding wheel 132 is close to the edge of the blade 110 under the action of its own gravity. When the driving body 120 drives the blade 110 to rotate, the grinding wheel 132 can sharpen the blade 110 .

[0033] It should be noted that the technical solution of the utility model is to set a grinding wheel 132 in the handheld cloth cutting machine 100, and the grinding wheel 132 can approach the blade of the blade 110 by its own gravity. When the driving body 120 drives the blade 110 to rotate, the grinding wheel 132 can sharpen the blade 110 to make the blade 110 sharp, thereby quickly solving the problem of bluntness of the blade 110.

[0034] It should also be noted that, under the condition of ensuring safety, the mounting frame 131 can be manually assisted to change the grinding angle between the blade 110 and the grinding wheel 132 so that the blade 110 can be sharper.

[0035] It should also be noted that the grinding wheel 132 is made of metal iron, and diamond or ceramic is sprayed on its surface.

[0036] Optionally, in a feasible embodiment, the number of the grinding wheel 132 is one. The grinding wheel 132 can rotate and grind the blade 110 .

[0037] Please continue reading Figure 2 In one embodiment, the periphery of the grinding wheel 132 is provided with a plurality of first convex rings 132a arranged in parallel at intervals; the periphery of the other grinding wheel 132 is also provided with a plurality of second convex rings 132b arranged in parallel at intervals; the second convex rings 132b are accommodated in the gap formed by the adjacent first convex rings 132a; the first convex ring 132a is accommodated in the gap formed by the adjacent second convex rings 132b; and there is a distance between the first convex ring 132a and the other grinding wheel 132, and there is a distance between the second convex ring 132b and the other grinding wheel 132.

[0038] It is understandable that the arrangement of the first convex ring 132a and the second convex ring 132b allows the two grinding wheels 132 to intersect in the radial direction, thereby preventing the clamping knife and the blade 110 from breaking. The first convex ring 132a is spaced apart from the other grinding wheel 132, and the second convex ring 132b is spaced apart from the other grinding wheel 132, so that the iron chips produced by grinding can fall off, thereby preventing the accumulation of iron chips from causing the grinding wheel 132 to rotate inflexibly, thereby affecting the grinding effect.

[0039] Furthermore, in order to improve the sharpening effect, the outer surfaces of the first convex ring 132a and the second convex ring 132b are sprayed with wear-resistant material. Optionally, the wear-resistant material is diamond or ceramic.

[0040] Please continue reading Figure 2 In a specific embodiment, the grinding assembly 130 also includes a torsion spring 134 and an axle pin 135, the torsion spring 134 has a first output end 1341 and a second output end 1342, the torsion spring 134 is sleeved on the axle pin 135, and the first output end 1341 is fixedly connected to the mounting frame 131, and the second output end 1342 is fixedly connected to the fixing member 133.

[0041] It is understandable that when the first output end 1341 and the second output end 1342 of the torsion spring 134 rotate toward or away from each other, they need to overcome the elastic force in the spiral direction of the torsion spring 134. Therefore, the first output end 1341 is fixedly connected to the mounting frame 131, and the second output end 1342 is fixedly connected to the fixing member 133, which can improve the adhesion of the grinding wheel 132 to the blade 110, and further improve the sharpening effect.

[0042] See also Figure 3 In a specific embodiment, the fixing member 133 includes a first connecting portion 1331, a second connecting portion 1332 and a first fixing portion 1333; the second connecting portion 1332 and the first connecting portion 1331 are rotatably matched in a plane perpendicular to the blade 110; the first connecting portion 1331 is connected to the mounting frame 131; the second connecting portion 1332 is fixed to the first fixing portion 1333; and the first fixing portion 1333 is mounted on the driving body 120. It can be understood that the rotatable matching of the second connecting portion 1332 and the first connecting portion 1331 in a plane perpendicular to the blade 110 enables the grinding wheel 132 to be separated from the blade 110 when the blade 110 does not need to be sharpened, thereby preventing the grinding wheel 132 from interfering with the blade 110.

[0043] Specifically, Figure 3 and Figure 4 As shown, the first fixing portion 1333 is further provided with a protrusion 1334; the mounting frame 131 has a matching groove 131a, and after the mounting frame 131 rotates along the rotation axis of the second connecting portion 1332, the protrusion 1334 is received in the matching groove 131a, thereby achieving the storage of the grinding wheel 132 and the fixing frame.

[0044] It should also be noted that, in one embodiment, the first connection portion 1331 can be removed axially from the second connection portion 1332 , thereby achieving complete separation of the grinding wheel 132 from the driving body 120 .

[0045] like Figure 3 As shown, in one embodiment, the edge of the blade 110 is formed of six arc-shaped blades arranged in a circular array, and the tangent angle at the connection between adjacent arc-shaped blades is an obtuse angle.

[0046] It is understandable that the design of the arc-shaped blade can improve the cloth cutting effect, and the mounting frame 131 is hinged to the fixing member 133 , so that the grinding wheel 132 can adapt to the blade of the blade 110 .

[0047] See also Figure 1In a specific embodiment, the handheld cloth cutting machine 100 further includes a cutting support frame 140, the cutting support frame 140 is connected to the driving body 120, and the cutting support frame 140 has a hollow portion 140a, the hollow portion 140a is arranged below the blade 110, and is used to make the iron scraps generated by sharpening fall off. It can be understood that the position of the cutting support frame 140 close to the blade 110 is easy to scratch the hand when cleaning the iron scraps, and the design of the hollow portion 140a can make the iron scraps generated during sharpening fall from the hollow portion 140a, reducing the probability of injury.

[0048] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A handheld cloth cutting machine, characterized in that: It includes a blade, a driving body, and a grinding assembly; The blade is used for cutting cloth, the blade is connected to the driving body, and the driving body is used for driving the blade to rotate; The grinding assembly comprises a mounting frame, two parallel grinding wheels and a fixing member connected to the driving body; the grinding wheel is mounted on the mounting frame and can rotate freely relative to the mounting frame; the two grinding wheels are respectively arranged on both sides of the blade and can contact the blade; The mounting frame is hinged to the fixing member so that the grinding wheel is close to the blade of the blade under the action of its own weight. When the driving body drives the blade to rotate, the grinding wheel can sharpen the blade.

2. The handheld cloth cutting machine according to claim 1, characterized in that: The periphery of the grinding wheel is provided with a plurality of first convex rings arranged in parallel at intervals; the periphery of the other grinding wheel is also provided with a plurality of second convex rings arranged in parallel at intervals; the second convex rings are accommodated in the gaps formed by adjacent first convex rings; the first convex rings are accommodated in the gaps formed by adjacent second convex rings; and there is a distance between the first convex ring and the other grinding wheel, and there is a distance between the second convex ring and the other grinding wheel.

3. The handheld cloth cutting machine according to claim 2, characterized in that: The outer surfaces of the first convex ring and the second convex ring are sprayed with wear-resistant material.

4. The handheld cloth cutting machine according to claim 1, characterized in that: The grinding assembly also includes a torsion spring and an axle pin. The torsion spring has a first output end and a second output end. The torsion spring is sleeved on the axle pin, and the first output end is fixedly connected to the mounting frame, and the second output end is fixedly connected to the fixing member.

5. The handheld cloth cutting machine according to claim 1, characterized in that: The fixing member includes a first connecting portion, a second connecting portion and a first fixing portion; the second connecting portion and the first connecting portion rotate in cooperation with each other in a plane perpendicular to the blade; the first connecting portion is connected to the mounting frame; the second connecting portion is fixed to the first fixing portion; and the first fixing portion is installed on the driving body.

6. The handheld cloth cutting machine according to claim 5, characterized in that: The first fixing portion is further provided with a protrusion; the mounting frame has a matching groove, and after the mounting frame rotates along the rotating shaft of the second connecting portion, the protrusion is received in the matching groove.

7. The handheld cloth cutting machine according to any one of claims 1 to 6, characterized in that: The edge of the blade is formed of six arc-shaped blades arranged in a circular array, and the tangent angle at the connection between adjacent arc-shaped blades is an obtuse angle.

8. The handheld cloth cutting machine according to claim 7, characterized in that: It also includes a cutting support frame, which is connected to the driving body and has a hollow portion, which is arranged below the blade and is used to make the debris generated by sharpening fall off.

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