Grinding tool for cutter of shredding machine

Abstract

The utility model relates to a shredder cutter grinding tool which comprises a cutter supporting platform and a grinding wheel supporting platform, the cutter supporting platform comprises a supporting plate, a plurality of universal ball bearings which are arranged in a criss-cross mode are arranged on the supporting plate, and the upper sides of the universal ball bearings are used for supporting shredder cutters to be machined. The grinding wheel supporting platform comprises at least one grinding wheel, and a grinding wheel shaft of the grinding wheel is in transmission connection with the driving mechanism. According to the grinding tool for the cutter of the shredding machine, the cutter supporting platform is designed, the cutter can be conveniently moved through the universal ball bearing in the grinding machining process, the special customized grinding wheel such as a diamond grinding wheel is used, the ultrahigh grinding performance is achieved, grinding of a hard abrasion-resistant layer on the outer side of the cutter can be completed, and the grinding efficiency is improved. The edge angle is ground between the end face of the cutter body of the cutter and the wear-resistant layer, so that the shearing effect of the cutter in the using process is improved, the shredding machine provided with the cutter can be used for crushing materials into smaller sizes, and the requirements of users are met.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool grinding technology, specifically to a grinding fixture for shredder cutting tools. Background Technology

[0002] A shredder is a machine used for fine shredding, generally for processing unprocessed raw materials or scraps to make them smaller. For example, the utility model patent CN221656771U discloses a patterned shredder blade. By setting patterns and a wear-resistant layer on the blade body, it effectively overcomes the problems of poor wear resistance and low working efficiency of shredder blades. In actual manufacturing, the welding precision requirements for the wear-resistant layer are not high, and the surface of the wear-resistant layer is not smooth; the transition between the end face of the blade body and the wear-resistant layer is an irregular part, neither a right angle nor a rounded surface. For general material shredding, such as shredding straw used for biomass fuel, it is sufficient. However, for users who require smaller shredded sizes (such as processing straw into smaller pieces for livestock feed), further processing of the blades is necessary. Utility Model Content

[0003] The purpose of this invention is to provide a dedicated grinding fixture for shredder blades to treat shredder blades with wear-resistant layers.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The shredder cutter grinding fixture includes a cutter support platform and a grinding wheel support platform. The cutter support platform includes a support plate with multiple crisscrossing universal ball bearings. The upper side of the universal ball bearings is used to support the shredder cutter to be processed. The grinding wheel support platform includes at least one grinding wheel, and the grinding wheel shaft is connected to the drive mechanism for transmission.

[0006] Furthermore, the support plate is fixed to the frame.

[0007] Furthermore, the frame is a frame structure assembled from steel pipes.

[0008] Furthermore, an auxiliary plate is provided on one side of the support plate on the frame, and a seated bearing is provided on the auxiliary plate, with the grinding wheel shaft assembled in the seated bearing.

[0009] Furthermore, there are two grinding wheels, which are respectively installed at both ends of the grinding wheel shaft, and there is a pair of bearings with seats.

[0010] Furthermore, the length of the auxiliary plate is less than the length of the support plate, so as to form a space for the grinding wheel to rotate on both sides of the auxiliary plate along its length.

[0011] Furthermore, the auxiliary plate has a through hole in the middle, and the grinding wheel shaft has a transmission part in the middle, which is connected to the drive mechanism for transmission. The through hole allows the transmission mechanism to pass through.

[0012] Furthermore, the drive mechanism includes a motor and the transmission mechanism, and a motor base is provided at the bottom of the frame for placing the motor.

[0013] Furthermore, the grinding wheel is disc-shaped, and its outer circumferential surface is used to grind the wear-resistant layer of the shredder blade.

[0014] Furthermore, the grinding wheel is a brazed diamond grinding wheel.

[0015] The beneficial effects of this utility model are:

[0016] This utility model relates to a shredder blade grinding fixture, which features a blade support platform. During the grinding process, a universal ball bearing allows for easy blade movement. A grinding wheel platform is positioned close to the blade support platform, utilizing a specially designed grinding wheel, such as a diamond wheel, with superior grinding performance, capable of grinding the harder, wear-resistant layer on the outer surface of the blade. This shredder blade grinding fixture creates an edge between the blade's end face and the wear-resistant layer, improving the shearing effect during use. This allows the shredder equipped with this blade to pulverize materials into smaller pieces, meeting specific user needs. Attached Figure Description

[0017] Figure 1 This is a perspective view of the shredder blade grinding fixture of this utility model;

[0018] Figure 2 This is a schematic diagram of the shredder blade grinding fixture of this utility model after placing two blades;

[0019] Figure 3 It is a 3D view of the shredder blades.

[0020] 1. Frame; 2. Support plate; 3. Universal ball bearing; 4. Grinding wheel; 5. Bearing with seat; 6. Grinding wheel shaft; 7. Auxiliary plate; 71. Through hole; 8. Motor; 9. Shredder blade; 90. Blade body; 91. Blade teeth; 92. Edges; 93. Grinding surface. 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 skilled in the art are within the protection scope of the present utility model.

[0022] Embodiments of this utility model:

[0023] like Figure 1 As shown, the shredder cutter grinding fixture includes a cutter support platform and a grinding wheel support platform. The cutter support platform includes a support plate 2, which is fixed to the frame 1. The frame 1 is a frame structure spliced ​​from steel pipes. Multiple crisscrossing universal ball bearings 3 are provided on the support plate 2. The upper side of the universal ball bearings 3 supports the shredder cutter 9 to be processed. The end face of the shredder cutter 9 can be supported by several of the universal ball bearings 3, keeping the shredder cutter 9 horizontal. Figure 2 (as shown in the image), and the shredder cutter 9 can be easily moved during the grinding process.

[0024] The grinding wheel support platform includes at least one grinding wheel 4, and the grinding wheel shaft 6 on which the grinding wheel 4 is located is connected to the drive mechanism for transmission. In this embodiment, there are two grinding wheels 4, which are respectively installed at both ends of the grinding wheel shaft 6. The grinding wheels 4 rotate synchronously, which can process two tools at the same time.

[0025] An auxiliary plate 7 is provided on one side of the support plate 2 on the frame 1. A bearing 5 with a mounting seat is provided on the auxiliary plate 7, and the grinding wheel shaft 6 is assembled in the bearing 5 with a mounting seat. There is a pair of bearings 5 ​​with mounting seats.

[0026] The length of the auxiliary plate 7 is less than the length of the support plate 2, so as to form a space for the grinding wheel to rotate on both sides of the auxiliary plate 7 along its length. The grinding wheel is disc-shaped, with its lowest point below the auxiliary plate 7 and its center above the upper side of the support plate 2. The outer edge of the grinding wheel on one side of the support plate 2 is close to the support plate 2.

[0027] The drive mechanism includes a motor 8 and a transmission mechanism. A motor 8 mount is provided at the bottom of the frame 1 for housing the motor 8. The transmission mechanism (not shown) is relatively mature and can be a chain drive mechanism or a belt drive mechanism.

[0028] The auxiliary plate 7 has a through hole 71 in the middle, and the grinding wheel shaft 6 has a transmission part in the middle, which is connected to the drive mechanism. The through hole 71 allows the transmission mechanism to pass through. The transmission part can be used to install sprockets or pulleys.

[0029] The grinding wheel 4 is disc-shaped, and its outer circumferential surface is used to grind the wear-resistant layer of the shredder blade 9. The wear-resistant layer is made of a relatively hard, wear-resistant material that cannot be effectively ground by conventional grinding wheels. In this embodiment, a grinding wheel specifically designed for grinding the wear-resistant layer of the shredder blade 9 is manufactured. The grinding wheel 4 is a brazed diamond grinding wheel, a superhard abrasive tool formed by bonding diamond abrasive grains to a metal matrix through a brazing process. The brazing filler metal (such as silver-based or copper-based alloys) melts at high temperatures and chemically wets the diamond and matrix surfaces, forming a metallurgical bonding layer with high tensile strength of the abrasive grains.

[0030] like Figure 3 The diagram shown is a schematic of the shredder blade 9 after grinding. The shredder blade 9 includes a plate-shaped blade body 90, and the outer periphery of the blade body 90 is provided with a number of cutting teeth 91. The number of cutting teeth 91 can be designed according to needs. The part that needs to be ground is the outer wall of the blade body 90 between two adjacent teeth, that is, the part that still has a wear-resistant layer. Figure 3 The textured wear-resistant layer is not shown; only a flat surface is shown. This surface, after grinding with a grinding wheel, is designated as grinding surface 93. Grinding surface 93 is perpendicular to the upper end face of the blade body 90. After grinding, an angle 92 is formed between the upper end of the wear-resistant layer and the upper end face of the blade body 90, or a 90-degree right angle. This enhances the shearing effect of the shredder during operation, resulting in smaller shredded material. One blade tooth 91 corresponds to one grinding surface 93. Figure 3 The nine cutting teeth 91 shown require grinding nine grinding surfaces 93; if there are four cutting teeth 91, then four grinding surfaces need to be ground.

[0031] Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections (linkages). In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this utility model 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, they should not be construed as limitations on this utility model.

[0032] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

Claims

1. A grinder tooling for a shredder knife, characterized by: The tool support platform comprises a support plate, and a plurality of cross-arranged universal ball bearings are arranged on the support plate, and the upper side of the universal ball bearings is used for supporting the shredder cutter to be machined.

2. A shredder knife grinding fixture according to claim 1, characterized in that: The support plate is fixed on the rack.

3. A shredder knife grinding fixture according to claim 2, wherein: The rack is a frame structure spliced by steel pipes.

4. The grinder tool of claim 2, wherein: An auxiliary plate is arranged on one side of the support plate on the rack, a bearing with seat is arranged on the auxiliary plate, and the grinding wheel shaft is assembled in the bearing with seat.

5. A shredder knife grinding fixture according to claim 4 wherein: Two grinding wheels are arranged on both ends of the grinding wheel shaft, and the bearing with seat is provided with a pair of bearings.

6. A shredder knife grinding fixture according to claim 5 wherein: The length of the auxiliary plate is less than the length of the support plate, so as to form a space for grinding wheel rotation on both sides of the auxiliary plate in the length direction.

7. The grinder tool of claim 5, wherein: A through hole is arranged in the middle of the auxiliary plate, a transmission part is arranged in the middle of the grinding wheel shaft and connected with the driving mechanism, and the transmission mechanism passes through the through hole.

8. A shredder knife grinding fixture according to claim 7, characterized in that: The driving mechanism comprises a motor and the transmission mechanism, and a motor base is arranged at the bottom of the rack for placing the motor.

9. The grinder tool sharpening apparatus of claim 1, wherein: The grinding wheel is in a disc shape, and the outer circumferential surface of the grinding wheel is used for grinding the wear-resistant layer of the shredder cutter.

10. A shredder knife grinding fixture according to claim 9, characterized in that: The grinding wheel is a brazed diamond grinding wheel.

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