Scissors grinding equipment

Abstract

The present invention discloses a processing device for grinding scissors, which relates to the technical field of scissors production, and includes a base, a grinding wheel and a clamp. The base includes a curved surface, and the curved surface has the same curvature as the surface of the scissors to be ground; the grinding wheel is used to grind the scissors, and the grinding wheel and the surface of the scissors to be ground are in point contact, and the trajectory of the point contact is the same as the curvature of the curved surface; the clamp is used to fix the scissors, and the clamp is provided with a roller, and the roller rolls on the curved surface, and the clamp reciprocates along the curved surface, and the movement trajectory of the clamp is the same as the curvature of the curved surface. It has the following beneficial effects: (1) improving the shearing quality and production efficiency of the scissors; (2) clarifying the grinding trajectory and geometric shape of the inner surface of the scissors, which is convenient for subsequent processing; (3) having a fixed processing trajectory and geometric shape, which is convenient for the automation upgrade of subsequent equipment; (4) the processed scissors have beautiful appearance; (5) being widely used, and having good consistency and stability.

Description

Technical Field

[0001] The invention relates to the technical field of scissors production, in particular to a scissors grinding processing device. Background Art

[0002] In the production process of scissors, the effect of scissor grinding determines the sharpness and durability of the scissors, and the grinding of scissors is divided into several surface grinding. The grinding of the first outer edge of the scissors is manual grinding or machine grinding, and the cutting edge is a straight line, or it is ground by CNC equipment. Manual grinding is inefficient, the grinding quality is poor, the efficiency is low, the cutting edge shape is limited, and the cost of CNC equipment is too high. The grinding of the inner surface of the scissors is adjusted by experience. The specific trajectory of the inner surface grinding is unclear, and the specific geometry of the inner surface is unclear, resulting in poor production stability and low production efficiency. Therefore, there is an urgent need for a scissors grinding processing device with high efficiency, high quality, low cost, and clear grinding trajectory.

[0003] The existing scissors grinding device is provided with a guide mechanism between the connecting frame and the main frame to guide the movement trajectory of the grinding wheel so that the grinding wheel fits the grinding trajectory of the scissors. This makes the movement of the rotating grinding wheel more unstable, the outer contour of the grinding wheel is uncertain after rotation, and the grinding surface formed by the grinding scissors is not very consistent. Summary of the invention

[0004] 1. Technical problem to be solved by the invention

[0005] In view of the above technical problems of low grinding efficiency, poor quality, limited edge shape, high cost, poor stability and consistency of traditional scissors, the present invention provides a processing device for scissors grinding, which uses tooling to form an arc-shaped grinding trajectory, so that the grinding trajectory is clear, and the grinding efficiency of the grinding surface is higher and the quality is better. The edge shape meets the point contact requirements of the scissors, making the scissors sharper, and has lower cost, better consistency and greater stability.

[0006] 2. Technical solution

[0007] To solve the above problems, the technical solution provided by the present invention is:

[0008] The processing device for grinding scissors is characterized by comprising a base, a grinding wheel and a fixture.

[0009] The base comprises a curved surface, wherein the curved surface has the same curvature as the surface of the scissors to be ground;

[0010] A grinding wheel, used for grinding the scissors, wherein the grinding wheel and the surface of the scissors to be ground are in point contact, and the trajectory of the point contact is the same as the curvature of the arc surface;

[0011] The clamp is used to fix the scissors. The clamp is provided with a roller. The roller rolls on the arc surface. The clamp reciprocates along the arc surface. The movement trajectory of the clamp is the same as the curvature of the arc surface.

[0012] Optionally, a bracket is provided under the curved surface, and the bracket is used to support the curved surface.

[0013] Optionally, reinforcing ribs are provided in the bracket.

[0014] Optionally, the number of the arc surfaces is one or more, and the trajectory of the surface of the scissors to be ground moving due to the movement of the roller is the same as the curvature of the arc surfaces.

[0015] Optionally, the clamp is connected to a connecting seat, the connecting seat is connected to an arc moving device, and the moving trajectory of the arc moving device is the same as the curvature of the arc surface.

[0016] Optionally, a hinge structure of the clamp for circumferentially rotating the scissors is provided in the connection seat of the clamp, and the hinge structure of the clamp connects the connection seat and the clamp.

[0017] Optionally, the fixture includes an inner surface grinding fixture and a first outer surface grinding fixture, wherein the inner surface grinding fixture is used for grinding the inner surface; and the first outer surface grinding fixture is used for grinding the first outer surface.

[0018] Optionally, the first outer opening grinding fixture and the grinding wheel form a preset angle through the hinge structure of the fixture, and the preset angle is the angle between the first outer opening and the side of the scissors. The arc surface in the first outer opening grinding fixture and the first outer opening are inclined at the same angle.

[0019] Optionally, the grinding wheel is connected to a moving device, and the moving device pulls the grinding wheel to fit the surface of the scissors to be ground, and the grinding wheel rotates to grind the scissors.

[0020] Optionally, the clamp is provided with a protrusion, which is matched with the outer contour of the scissors.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0023] (1) The scissors grinding processing device proposed in the embodiment of the present application improves the shearing quality and production efficiency of the scissors.

[0024] (2) The scissors grinding processing device proposed in the embodiment of the present application clearly defines the grinding trajectory and geometric shape of the inner surface of the scissors, which facilitates subsequent processing.

[0025] (3) The scissors grinding processing device proposed in the embodiment of the present application has a fixed processing trajectory and geometric shape, which facilitates the automation upgrade of subsequent equipment.

[0026] (4) The scissors grinding processing device proposed in the embodiment of the present application can produce scissors with beautiful appearance.

[0027] (5) The scissors grinding processing device proposed in the embodiment of the present application is widely used and has good consistency and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of inner surface grinding of a scissors grinding processing device provided in an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of the structure of the scissors provided in an embodiment of the present invention;

[0030] Figure 3 A front view of the inner surface grinding of the scissors grinding processing device provided in an embodiment of the present invention;

[0031] Figure 4 A top view of the first outer opening of the scissors grinding processing device provided in an embodiment of the present invention;

[0032] Figure 5 This is a schematic structural diagram of the first outer opening grinding of the scissors grinding processing device proposed in an embodiment of the present invention.

[0033] 1. Base; 101. Arc surface; 102. Bracket; 2. Connecting seat; 3. Grinding wheel; 4. Clamp; 401. Roller; 5. Scissors; 501. Knife root; 502. First outer opening; 503. Knife tip; 504. Second outer opening; 505. Grinding starting point. DETAILED DESCRIPTION

[0034] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.

[0035] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the invention are shown in the accompanying drawings. The words "first", "second", etc. described in the present invention are set for the convenience of describing the technical solution of the present invention, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present invention. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is 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 of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions without contradictions or conflicts, all of which are within the scope of protection required by the present invention.

[0036] Example 1

[0037] Combined with Figure 1-3 The scissors grinding processing device comprises a base 1, a connecting seat 2, a grinding wheel 3 and a clamp 4.

[0038] The scissors 5 to be ground have a surface to be ground, and the surface to be ground is in contact with the grinding wheel 3. In this embodiment, the inner surface is ground. The scissors 5 include a root 501, a first outer opening 502, a tip 503, a second outer opening 504 and a grinding starting point 505. The inner surface is the reverse side of the outer surface, and both the inner surface and the outer surface are the sides of the scissors 5. For a good pair of scissors, the two blades need to be in point contact during shearing, and the grinding of the inner surface is crucial to achieve point contact. The best way to achieve point contact between the two blades during shearing is that the points on the blade edge line: 1. From the root 501 to the tip 503, the points on the edge line, the latter points cannot be lower than the former points; 2. On each cross section, the points on the edge line are the high points on the inner surface. When the inner surface of the scissors 5 is ground, the fixture 4 for fixing the blade and the blade: the blade edge and the profiling plate of the fixture 4 have the same curvature. After grinding, the points on the cutting edge line meet the above two requirements, and the shearing effect is improved. During grinding, the root of the blade first contacts the grinding wheel 3, and the blade is ground from the root to the tip 503.

[0039] The base 1 includes a curved surface 101 and a bracket 102. The curved surface 101 has the same curvature as the surface to be ground of the scissors 5. The number of the curved surfaces 101 is one or more. The trajectory of the surface to be ground of the scissors 5 due to the movement of the roller 401 is the same as the curvature of the curved surface 101. The curved surface 101 is the key to determining the grinding trajectory of the grinding surface. The curved surface 101 is made of hard material to minimize deformation and ensure that the curvature of the curved surface 101 remains unchanged.

[0040] The support 102 is located below the curved surface 101 and is used to support the curved surface 101. The support 102 is provided with reinforcing ribs. The reinforcing ribs can improve the structural strength of the base 1.

[0041] The connecting seat 2 is used to connect the clamp 4; the connecting seat 2 is connected to an arc moving device, and the moving track of the arc moving device is the same as the curvature of the arc surface 101. A roller 401 is provided at the end of the connecting seat 2 away from the grinding wheel 3, and the roller 401 limits the connecting seat 2. The axial direction of the roller 401 is perpendicular to the upper surface of the connecting seat 2, and the connecting seat 2 is connected to the fixed fixture by rolling through the roller 401.

[0042] The grinding wheel 3 is used for grinding the scissors 5. The grinding wheel 3 is connected to a moving device, and the grinding wheel 3 is rotated for grinding. The moving device is used to remove or place the grinding wheel 3 to facilitate the loading and unloading of the scissors 5.

[0043] The clamp 4 is used to fix the scissors 5. A roller 401 is provided below the clamp 4. The roller 401 rolls on the arc surface 101, and the clamp 4 reciprocates along the arc surface 101. The inner surface grinding clamp is used to grind the inner surface. The roller 401 is also made of hard material to ensure that the movement trajectory of the clamp 4 is stable when rolling. The design of the clamp 4 matches the surface of the scissors 5 that needs to be ground, so that the surface to be ground faces the grinding wheel 3. The clamp 4 is provided with a protrusion, which is adapted to the outer contour of the scissors 5.

[0044] Working principle:

[0045] Install the scissors 5 on the fixture 4 in the grinding posture of the inner surface, fit the roller 401 of the fixture 4 with the arc surface 101, and the grinding wheel 3 is not in place at this time, so it can be easily operated, and then the grinding wheel 3 is in place to contact the grinding surface, and the grinding wheel 3 and the connecting seat 2 are started. The connecting seat 2 drives the fixture 4 and the scissors 5 to reciprocate, and the grinding wheel 3 is ground. After grinding, the grinding wheel 3 is transferred, and the scissors 5 are removed for subsequent processes.

[0046] Example 2

[0047] Combined with Figure 4-5 Compared with the technical solution of Example 1, the processing device for grinding the scissors 5 of this embodiment can be improved as follows: the connecting seat 2 is provided with a hinge structure of a clamp in the circumferential direction of the scissors 5, and the hinge structure of the clamp connects the connecting seat 2 and the inner surface grinding clamp to flip the clamp 4 to form a required angle. The hinge structure of the clamp is a traditional shaft structure, which is convenient for adjusting the angle of the clamp.

[0048] The first outer opening grinding fixture of the connecting seat 2 is used to grind the first outer opening 502. The first outer opening grinding fixture and the grinding wheel 3 form a certain angle through the hinge structure of the fixture. The angle is equal to the angle between the first outer opening 502 and the side of the scissors 5. The arc surface 101 in the first outer opening grinding fixture and the first outer opening 502 are inclined at the same angle.

[0049] The arc surface 101 of the base 1 is also inclined at the same angle, and the first outer opening grinding fixture reciprocates on the arc surface 101, and the grinding wheel 3 performs grinding.

[0050] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A scissors grinding processing device, characterized in that: Including base, grinding wheel and clamp, The base comprises a curved surface, wherein the curved surface has the same curvature as the surface of the scissors to be ground; A grinding wheel, used for grinding the scissors, wherein the grinding wheel and the surface of the scissors to be ground are in point contact, and the trajectory of the point contact is the same as the curvature of the arc surface; A clamp, used to fix the scissors, the clamp is provided with a roller, the roller rolls on the arc surface, the clamp reciprocates along the arc surface, and the motion trajectory of the clamp is the same as the curvature of the arc surface; The grinding wheel is connected to a moving device, the moving device pulls the grinding wheel to fit the surface of the scissors to be ground, the grinding wheel rotates to grind the scissors, and the moving device is used to move or place the grinding wheel; A bracket is provided below the arc surface, and the bracket is used to support the arc surface.

2. The scissors grinding processing device according to claim 1, characterized in that: The bracket is provided with reinforcing ribs.

3. The scissors grinding processing device according to claim 1, characterized in that: The number of the arc surfaces is one or more, and the trajectory of the surface of the scissors to be ground moving due to the movement of the roller is the same as the curvature of the arc surface.

4. The scissors grinding processing device according to claim 1, characterized in that: The clamp is connected to a connecting seat, and the connecting seat is connected to an arc moving device, and the moving track of the arc moving device is the same as the curvature of the arc surface.

5. The scissors grinding processing device according to claim 1, characterized in that: A hinge structure of the clamp for circumferentially rotating the scissors is provided in the connection seat of the clamp, and the hinge structure of the clamp connects the connection seat and the clamp.

6. The scissors grinding processing device according to claim 1, characterized in that: The fixture comprises an inner surface grinding fixture and a first outer surface grinding fixture, wherein the inner surface grinding fixture is used for grinding the inner surface; and the first outer surface grinding fixture is used for grinding the first outer surface.

7. The scissors grinding processing device according to claim 6, characterized in that: The first outer opening grinding fixture and the grinding wheel form a preset angle through the hinge structure of the fixture. The preset angle is the angle between the first outer opening and the side of the scissors. The arc surface in the first outer opening grinding fixture and the first outer opening are inclined at the same angle.

8. The scissors grinding processing device according to claim 1, characterized in that: The clamp is provided with a protrusion, and the protrusion is matched with the outer contour of the scissors.

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