Combined bearing circular knife

Abstract

The utility model relates to round knife technical field, concretely is a combined bearing round knife, this round knife includes fixed flange, spring, cutting part and support spare, spring sets up between fixed flange and cutting part, support spare sets up at cutting part side away from fixed flange, cutting part includes round blade and second slope face, and the second slope face forms at the edge of round blade side close to spring, fixed flange includes round plate and connecting groove, and the connecting groove is set up in the inside of round plate side close to round blade, and the surface of round plate side close to round blade adopts the chamfering process, forms first slope face, and spring is covered in first slope face outside, and the inside of round plate is seted up with mounting hole, and the mounting hole is with the reference of the center of round plate, and is in the distribution of circumferential whole row. The utility model has the advantages of simple structure, reasonable in design, and can be for the material of uneven thickness, automatic compensation, avoids the advantage such as card sword or cutting not to be thorough.

Description

Technical Field

[0001] This utility model relates to the field of circular knife technology, specifically a combined bearing circular knife. Background Technology

[0002] In industrial manufacturing sectors such as printing, packaging, lithium battery manufacturing, and adhesive material processing, circular cutters are key components for material slitting and length cutting.

[0003] Existing circular cutters mostly use a rigid connection structure where the blade is directly fixed to the bearing seat or cutter shaft. This structure cannot adapt to slight variations in the thickness of the material being cut. When the material thickness is uneven or the equipment vibrates, it can easily lead to inconsistent cutting depths, resulting in incomplete cuts or excessive blade wear, which seriously affects the quality of the finished product. Furthermore, rigid contact is prone to vibration and noise during high-speed cutting, and may damage the blade edge due to instantaneous impact. To address this problem, the inventors designed a combined bearing circular cutter. Utility Model Content

[0004] The purpose of this utility model is to provide a combined bearing circular cutter, which has the advantages of simple structure, reasonable design, and automatic compensation for materials with uneven thickness, avoiding jamming or incomplete cutting, thus solving the problems mentioned in the above technical background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combined bearing circular cutter, which includes a fixed flange, a spring, a cutting component, and a support component. The spring is disposed between the fixed flange and the cutting component, and the support component is disposed on the side of the cutting component away from the fixed flange.

[0006] The cutting element includes a circular blade and a second bevel, the second bevel being formed on the edge of the circular blade near the spring side.

[0007] Preferably, the fixed flange includes a circular plate and a connecting groove, the connecting groove being formed inside the circular plate on the side near the circular blade.

[0008] Preferably, the surface of the circular plate near the circular blade is chamfered to form a first slope, and the spring is sleeved on the outside of the first slope.

[0009] Preferably, the circular plate has mounting holes inside, and the mounting holes are arranged in a circular array with reference to the center of the circular plate.

[0010] Preferably, the support includes a bearing and a tool holder, with the bearing fixed inside the tool holder and engaged inside the connecting groove.

[0011] Preferably, the bearing has connecting holes inside, which are arranged in a circular array with reference to the center of the bearing, and the connecting holes coincide with the mounting holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides a combined bearing circular cutter, which includes a fixed flange, a spring, a cutting component, and a support component. The overall structure is simple and reasonably designed. Through the spring, the cutting is changed from rigid collision to flexible contact. For materials with uneven thickness, the spring can automatically compensate, avoiding jamming or incomplete cutting. In addition, the spring reduces the direct impact of equipment vibration on cutting quality, making the operation more stable and the noise lower.

[0014] 2. The second slope of this utility model makes the circular blade sharper, reduces cutting resistance, and greatly reduces the possibility of the material being cut wrapping around the blade or sticking to the side of the blade. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a structural diagram of the fixed flange of this utility model;

[0017] Figure 3 This is a structural diagram of the cutting component of this utility model;

[0018] Figure 4 This is a structural diagram of the support component of this utility model.

[0019] The reference numerals and names in the figure are as follows:

[0020] 1. Fixed flange; 11. Circular plate; 12. Connecting groove; 13. Mounting hole; 14. First slope; 2. Spring; 3. Cutting part; 31. Circular blade; 32. Second slope; 4. Support; 41. Bearing; 42. Tool holder; 43. Connecting hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0024] Please see Figures 1 to 4 The present invention provides an embodiment of a combined bearing circular cutter, which includes a fixed flange 1, a spring 2, a cutting element 3 and a support element 4. The spring 2 is disposed between the fixed flange 1 and the cutting element 3, and the support element 4 is disposed on the side of the cutting element 3 away from the fixed flange 1.

[0025] The cutting element 3 includes a circular blade 31 and a second bevel 32, the second bevel 32 being formed on the edge of the circular blade 31 near the spring 2.

[0026] The fixed flange 1 serves as the mounting base and static support core for the entire circular blade module. The spring 2 is pre-pressed between the fixed flange 1 and the circular blade 31. This design ensures that the circular blade 31 is not completely rigidly fixed during cutting, but rather has a small buffer stroke in the axial direction. When encountering uneven material thickness or slight vibration of the equipment, the spring 2 can absorb the impact and maintain a continuous and constant pressure on the material by the circular blade 31, thereby obtaining a stable and clean cut. The cutting element 3 is used to perform the cutting task, and the support element 4 provides a precise and low-friction rotational support for the circular blade 31. The circular blade 31 is the cutting edge that directly contacts the material and performs the cutting. The second slope 32 forms the rake angle of the circular blade 31. A suitable angle can greatly optimize the cutting process, making the cut easier and smoother, reducing the squeezing and deformation of the material. Especially for soft or sticky materials, it can effectively prevent the material from adhering to the blade.

[0027] The fixed flange 1 includes a circular plate 11 and a connecting groove 12, which is formed inside the circular plate 11 on the side near the circular blade 31.

[0028] The circular plate 11 provides a stable mounting surface, and the connecting groove 12 is used to precisely accommodate and position the bearing 41, ensuring the concentricity of the bearing 41 and the fixed flange 1, which is the basis for ensuring the rotational accuracy of the circular blade 31.

[0029] The surface of the circular plate 11 near the circular blade 31 is chamfered to form a first slope 14, and the spring 2 is fitted on the outside of the first slope 14.

[0030] The first slope 14 provides a guide and positioning center for the spring 2, ensuring that the spring 2 can be uniformly and centrally stressed when compressed, avoiding skewing, thereby ensuring that the elastic force is uniformly applied to the circular blade 31.

[0031] The circular plate 11 has mounting holes 13 inside, which are arranged in a circle with reference to the center of the circular plate 11.

[0032] Mounting hole 13 is used to pass screws through, and finally lock the fixing flange 1 and the support 4 together. The circumferential array distribution design allows the fixing flange 1 to bear the fastening force from multiple directions evenly, avoiding deformation caused by single-point force.

[0033] The support member 4 includes a bearing 41 and a tool holder 42. The bearing 41 is fixed inside the tool holder 42 and is also engaged inside the connecting groove 12.

[0034] The bearing 41 is the core of the support component 4. It is installed in the tool holder 42, which allows the circular blade 31 to rotate at high speed, smoothly and with low resistance. This is the key to ensuring stable cutting speed and smooth cut without burrs. The tool holder 42 is the connecting part between the bearing 41 and the external equipment. Its inner cavity size must be matched with the tolerance of the outer ring of the bearing 41 to avoid vibration caused by gaps.

[0035] The bearing 41 has a connecting hole 43 inside. The connecting holes 43 are arranged in a circular array with reference to the center of the bearing 41, and the connecting holes 43 coincide with the mounting hole 13.

[0036] The connecting hole 43 is aligned with the mounting hole 13 on the fixed flange 1, and both receive the locking screw.

[0037] Working principle: When it is necessary to assemble the circular blade, put the spring 2 on the outside of the circular plate 11, put the circular blade 31 on the outside of the bearing 41, and then insert the bearing 41 into the connecting groove 12. Use screws to fix the screws in the mounting hole 13 and the connecting hole 43.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A combined bearing circular cutter, characterized in that, include: The components include a fixed flange (1), a spring (2), a cutting piece (3), and a support piece (4). The spring (2) is located between the fixed flange (1) and the cutting piece (3), and the support piece (4) is located on the side of the cutting piece (3) away from the fixed flange (1). The cutting element (3) includes a circular blade (31) and a second slope (32), the second slope (32) being formed on the edge of the circular blade (31) near the spring (2).

2. The combined bearing circular cutter according to claim 1, characterized in that, The fixed flange (1) includes a circular plate (11) and a connecting groove (12), the connecting groove (12) being formed inside the circular plate (11) on the side near the circular blade (31).

3. A combined bearing circular cutter according to claim 2, characterized in that, The surface of the circular plate (11) near the circular blade (31) is chamfered to form a first slope (14), and the spring (2) is fitted on the outside of the first slope (14).

4. A combined bearing circular cutter according to claim 2, characterized in that, The circular plate (11) has mounting holes (13) inside. The mounting holes (13) are arranged in a circular pattern with reference to the center of the circular plate (11).

5. A combined bearing circular cutter according to claim 1, characterized in that, The support member (4) includes a bearing (41) and a tool holder (42). The bearing (41) is fixed inside the tool holder (42) and is engaged inside the connecting groove (12).

6. A combined bearing circular cutter according to claim 5, characterized in that, The bearing (41) has a connecting hole (43) inside. The connecting holes (43) are arranged in a circular array with reference to the center of the bearing (41), and the connecting holes (43) coincide with the mounting hole (13).

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