CN118288167A

CN118288167A - Knife cutting edge grinding device

Info

Publication number: CN118288167A
Application number: CN202410721007.6A
Authority: CN
Inventors: 吴晓明
Original assignee: Zhangxiaoquan Co ltd
Current assignee: Zhangxiaoquan Co ltd
Priority date: 2024-06-05
Filing date: 2024-06-05
Publication date: 2024-07-05
Anticipated expiration: 2044-06-05
Also published as: CN118288167B

Abstract

The invention relates to the technical field of cutter grinding, in particular to a cutter shearing edge grinding device, which comprises a box body, wherein a driving block is arranged in the box body, a clamping assembly capable of sliding up and down is arranged on the periphery of the driving block, the clamping assembly is used for clamping a cutter, and the clamping assembly is connected with a driving rod; the bottom surface of the driving block is an inclined surface which is inclined along the front-back direction; the driving rod is rotationally arranged on the bottom surface of the driving block and is attached to the bottom surface, two grinding assemblies are symmetrically arranged in the box body along the left-right direction, each grinding assembly comprises a grinding abrasive belt, and when the clamping assembly rotates around the driving block, two side surfaces of the cutter can always face to the left side and the right side, so that in the process that the clamping assembly rotates around the driving block for one circle, the two side surfaces of the cutter can be respectively contacted with the two grinding abrasive belts and can move up and down relatively to grind the grinding belt, automatic grinding is realized, manual operation is not needed, and grinding efficiency is improved; and the polishing consistency of the two sides of the cutter can be ensured, and the polishing quality is improved as a whole.

Description

Knife cutting edge grinding device

Technical Field

The invention relates to the technical field of cutter grinding, in particular to a cutter shearing edge grinding device.

Background

The cutter is widely applied in life and is used for shearing and cutting objects, and in order to ensure normal use, the cutting edge positions are required to be ground in the production and processing processes.

In the prior art, manual grinding is usually adopted, a wide grinding wheel or grinding wheel is used as a grinding tool, and a certain angle exists between a grinding cutting edge and the grinding tool. In order to ensure the durable use and sharpness of the cutter, the cutting edges on two sides of the cutter should be ground as uniformly as possible, however, when the cutter is manually ground, the grinding uniformity of the cutting edges on two sides of the cutter is difficult to ensure, and even grinding along the length direction of the cutting edges is also difficult to ensure, so that the cutter cannot achieve the due cutting effect.

Disclosure of Invention

Accordingly, it is necessary to provide a device for grinding the edge of a knife to solve the problem that the conventional manual grinding cannot ensure the cutting effect of the knife.

The above purpose is achieved by the following technical scheme:

The utility model provides a sword cutting edge mouth grinder, includes the box, be equipped with the drive block in the box, the week side of drive block is equipped with the centre gripping subassembly that can slide from top to bottom, the centre gripping subassembly is used for centre gripping cutter, and the centre gripping subassembly is connected with the actuating lever; the bottom surface of the driving block is an inclined surface which is inclined along the front-back direction; the driving rod is rotationally arranged on the bottom surface of the driving block and is attached to the bottom surface, a first driving mechanism is arranged in the driving block, and the first driving mechanism can drive the driving rod to rotate so as to drive the clamping assembly to move up and down while rotating around the driving block;

The box is internally provided with two grinding assemblies symmetrically along the left-right direction, each grinding assembly comprises a grinding abrasive belt, and the clamping assemblies enable two sides of the cutter to always face to the left side and the right side when rotating around the driving block, so that the two sides of the cutter can be respectively contacted with the two grinding abrasive belts in the process that the clamping assemblies rotate around the driving block for one circle, and meanwhile, the two sides of the cutter can relatively move up and down relative to the grinding abrasive belts.

Further, the box includes base station and casing, the drive block is fixed to be set up on the casing, be equipped with the spout on the base station, the grinding component includes second actuating mechanism, second actuating mechanism is connected with the fixed disk, and second actuating mechanism can drive the fixed disk and follow the spout side-to-side slip.

Further, rotate on the fixed disk and be equipped with many bull sticks, many bull sticks are parallel and slope setting, abrasive band cover of polishing is established in the outside of many bull sticks, and wherein a bull stick transmission is connected with third actuating mechanism, and third actuating mechanism is used for driving abrasive band rotation of polishing.

Further, the clamping assembly is provided with two groups which are respectively positioned at two ends of the driving rod.

Further, the clamping assembly comprises two sliding rods and a fixing piece, two ends of the fixing piece are fixedly connected with the lower ends of the two sliding rods respectively, and the fixing piece is hinged to the driving rod.

Further, the bottom of casing is equipped with the sliding tray, the sliding tray is two circular slots with same diameter, and two circular slots have the coincidence portion, and two slide bars slide along respective sliding tray, make the distance between two slide bars remain unanimous throughout.

Further, the two ends of the driving rod are respectively connected with a reset spring, the bottom of the shell is provided with a ring groove, and the other end of the reset spring slides along the ring groove.

Further, a rotating shaft is fixed in the middle of the driving rod, and an output shaft of the first driving mechanism is connected with the rotating shaft.

Further, the section of the driving block is circular, and the height of the bottom surface of the driving block is gradually reduced from front to back.

Further, the number of the rotating rods is three.

The beneficial effects of the invention are as follows:

according to the cutter cutting edge grinding device, the driving rod is driven to rotate around the bottom surface of the driving block through the first driving mechanism, one end of the driving rod moves up and down while rotating due to the fact that the bottom surface of the driving block is an inclined surface, the clamping assembly is driven to rotate and slide up and down, and two side surfaces of the cutter can always face to the left and right directions due to the fact that the cutter is clamped on the clamping assembly, so that in the process that the clamping assembly rotates around the driving block for one circle, automatic grinding can be achieved on the two side surfaces of the cutter, sharp cutting edges are formed, manual operation is not needed, and grinding efficiency is improved; and the polishing consistency of the two side surfaces can be ensured, and the polishing quality is improved as a whole.

Secondly, the left side surface and the right side surface of the cutter are alternately polished by the polishing assembly, so that the annealing damage to the cutting edge caused by continuous polishing of one side of the cutter can be avoided, and the service life of the cutter is prolonged.

Drawings

Fig. 1 is a schematic perspective view of a knife-edge grinding device according to an embodiment of the present invention;

FIG. 2 is a side view of a knife edge grinder assembly according to one embodiment of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a cross-sectional view B-B of FIG. 2;

FIG. 5 is a schematic view of a part of a grinding device for a knife-edge opening according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a part of a knife-edge grinding device according to an embodiment of the present invention;

FIG. 7 is a top view of FIG. 6;

Fig. 8 is a side view of fig. 6.

Wherein:

100. a case; 101. a base station; 102. a housing; 200. a grinding assembly; 201. a second driving mechanism; 203. a fixed plate; 206. a rotating rod; 207. polishing an abrasive belt; 300. a clamping assembly; 301. a driving block; 302. a rotating shaft; 303. a driving rod; 304. a return spring; 305. a fixing member; 306. a slide bar; 307. a sliding groove.

Detailed Description

The present invention will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1 to 8, an embodiment of the present invention provides a device for grinding a blade edge of a knife, which includes a box 100, a driving block 301 is disposed in the box 100, a clamping assembly 300 capable of sliding up and down is disposed on a peripheral side of the driving block 301, the clamping assembly 300 is used for clamping a knife, and the clamping assembly 300 is connected with a driving rod 303; the bottom surface of the driving block 301 is an inclined surface, and the inclined surface is inclined along the front-back direction; the driving rod 303 is rotatably disposed on the bottom surface of the driving block 301 and is attached to the bottom surface, a first driving mechanism (not shown in the figure) is disposed in the driving block 301, and the first driving mechanism can drive the driving rod 303 to rotate, so as to drive the clamping assembly 300 to move up and down while rotating around the driving block 301; two grinding assemblies 200 are symmetrically arranged in the box 100 along the left-right direction, the grinding assemblies 200 comprise grinding abrasive belts 207, and when the clamping assembly 300 rotates around the driving block 301, two side surfaces (the front surface and the back surface of the knife can be understood as the front surface and the back surface of the knife) of the knife can always face to the left side and the right side, so that in the process that the clamping assembly 300 rotates around the driving block 301 for one circle, the two side surfaces of the knife can be respectively contacted with the two grinding abrasive belts 207 and can also move up and down relative to the grinding abrasive belts 207. In this embodiment, the first driving mechanism is a driving motor, and the driving lever 303 is a link.

In an embodiment, the box 100 includes a base 101 and a housing 102, the driving block 301 is fixedly disposed on the housing 102, a chute is disposed on the base 101, the polishing assembly 200 includes a second driving mechanism 201, the second driving mechanism 201 is connected with a fixing disc 203, and the second driving mechanism 201 can drive the fixing disc 203 to slide left and right along the chute. When the driving rod 303 drives the clamping assembly 300 to gradually move away from the polishing abrasive belt 207, the second driving mechanism 201 drives the fixed disc 203 to move towards the direction close to the driving block 301, so that the polishing abrasive belt 207 and the clamping assembly 300 can keep an initial polishing distance, the polishing duration of the cutter is ensured, and further the polishing effect is ensured.

In an embodiment, the fixed plate 203 is rotatably provided with a plurality of rotating rods 206, the rotating rods 206 are parallel and obliquely arranged, the sanding belt 207 is sleeved outside the rotating rods 206, and a third driving mechanism (not shown) is connected to one rotating rod 206 in a transmission manner, and the third driving mechanism is used for driving the sanding belt 207 to rotate. In this embodiment, the third driving mechanism is a driving motor. In this embodiment, the plurality of rotating rods 206 are obliquely arranged, so that a certain included angle is formed between the polishing abrasive belt 207 and the cutter, and the included angle is the inclination angle of the cutting edge of the cutter. Therefore, the inclination angle of the rotating lever 206 can be adjusted in advance according to the inclination angle of the cutting edge to be polished.

In one embodiment, three rotating rods 206 are provided. The three rotating rods 206 are triangular, so that the triangular structure is more stable, and the sanding belt 207 can be kept in a stable state during use. In other embodiments, the number of turning bars 206 may be more than three.

In one embodiment, the clamping assembly 300 has two sets, one set being located at each end of the driving rod 303. Thus, the two clamping assemblies 300 can respectively clamp one cutter, so that the two cutters can be polished simultaneously, or the two cutter handles of the scissors are respectively fixed on the clamping assembly 300, the two cutter handles of the scissors can be polished simultaneously, and the polishing efficiency is improved. In other embodiments, more than three sets of clamping assemblies 300 may be provided.

In an embodiment, the clamping assembly 300 includes two sliding rods 306 and a fixing member 305, two ends of the fixing member 305 are fixedly connected to the lower ends of the sliding rods 306, and the fixing member 305 is hinged to the driving rod 303. In this embodiment, the fixing member 305 is a cylinder, and a fixing groove (not shown) is formed in the bottom of the cylinder, and the cutter is inserted into the fixing groove and fixed by a bolt. In other embodiments, the fixture 305 may be provided as a spring clip that resiliently grips the tool.

In an embodiment, the bottom of the housing 102 is provided with a sliding groove 307, the sliding groove 307 is two circular grooves with the same diameter, and the two circular grooves have overlapping portions, and the two sliding rods 306 slide along the respective sliding grooves 307, so that the distance between the two sliding rods 306 is always kept consistent, and the cutting edges on both sides of the cutter can be always directed to the left and right sides. In this embodiment, the lengths of the two sliding rods 306 are different, and the corresponding depths of the sliding grooves 307 are different, so that the two sliding rods 306 can slide normally along the respective sliding grooves 307.

In an embodiment, two ends of the driving rod 303 are respectively connected with a return spring 304, a ring groove is formed at the bottom of the housing 102, and the other end of the return spring 304 slides along the ring groove. The bottom of the driving lever 303 can be kept in contact with the bottom surface of the driving block 301 all the time by providing the return spring 304.

In one embodiment, a rotating shaft 302 is fixed at the middle part of the driving rod 303, and an output shaft of the first driving mechanism is connected with the rotating shaft 302.

In one embodiment, the cross section of the driving block 301 is circular, and the height of the bottom surface of the driving block 301 gradually decreases from front to back. So that the clamping assembly 300 can keep uniform up-and-down movement in the rotation process, the polishing uniformity of the cutting edge of the cutter in the up-and-down direction is improved, and further the polishing effect is improved.

In combination with the above embodiment, the use principle and working process of the embodiment of the present invention are as follows:

In the initial state, the driving rod 303 extends in the left-right direction, and the clamping assembly 300 is positioned at the left side of the driving rod 303 to clamp the cutter on the fixing member 305, so that two side surfaces of the cutter face to the left side and the right side; then, the first driving mechanism is controlled to drive the driving rod 303 to rotate anticlockwise (seen from top to bottom) along the bottom surface of the driving block 301, and the third driving mechanism is controlled to drive the sanding belt 207 to rotate; because the bottom surface of the driving block 301 is an inclined surface which inclines forwards and backwards, the driving rod 303 rotates anticlockwise and moves upwards and downwards, and the clamping assembly 300 is driven to rotate anticlockwise and move upwards and downwards, so that the clamping assembly 300 drives the cutter to move from the left side of the driving block 301 to the right side of the driving block 301, and in the rotating process, the clamping assembly 300 drives the cutter to move upwards and then downwards, and further drives the left side surface of the cutter to be polished with the left polishing abrasive belt 207 firstly, and meanwhile, the left side surface moves upwards to polish the left side surface from top to bottom; then the right side surface of the cutter is polished with the right polishing abrasive belt 207, and simultaneously the right side surface moves downwards to enable the right side surface to be polished from bottom to top, so that the left side surface and the right side surface of the cutter can be polished up and down. Meanwhile, when the clamping assembly 300 drives the cutter to move from the left side position of the driving block 301 to the middle position of the driving block 301, the left and right second driving mechanisms 201 are synchronously controlled to drive the fixed disc 203 to slide towards the direction close to the driving block 301, so that the distance between the left sanding belt 207 and the left side surface of the cutter is always consistent in the process of rotating the cutter from the left side to the middle position, and when the clamping assembly 300 drives the cutter to move from the middle position of the driving block 301 to the right side position of the driving block 301, the left and right second driving mechanisms 201 are synchronously controlled to drive the fixed disc 203 to slide towards the direction far away from the driving block 301, so that the distance between the right sanding belt 207 and the right side surface of the cutter is always consistent, and the duration of sanding of the two side surfaces of the cutter can be ensured as a whole, and the sanding effect of the cutter is ensured.

Then the first driving mechanism continues to drive the driving rod 303 to rotate anticlockwise, so that the clamping assembly 300 drives the cutter to rotate from the right side of the driving block 301 to the initial position, in the process, the two second driving mechanisms 201 also drive the fixed disc 203 to be close to the driving block 301 and then to be far away from the driving block 301, so that the two sides of the cutter are polished up and down, and the two sides of the cutter can be polished respectively by rotating the driving rod 303 for one circle, so that sharp cutting edges are formed, manual polishing is not needed, and the polishing efficiency is improved; and the two sides of the cutter are alternately polished, so that the annealing damage to the cutting edge caused by continuous polishing of one side of the cutter can be avoided, the service life of the cutter is prolonged, the polishing degree of the two sides of the cutter is the same, the polishing uniformity is ensured, and the cutting effect of the cutting edge of the cutter is improved.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.

Claims

1. The cutter shearing edge grinding device is characterized by comprising a box body, wherein a driving block is arranged in the box body, a clamping assembly capable of sliding up and down is arranged on the periphery of the driving block, the clamping assembly is used for clamping a cutter, and the clamping assembly is connected with a driving rod; the bottom surface of the driving block is an inclined surface which is inclined along the front-back direction; the driving rod is rotationally arranged on the bottom surface of the driving block and is attached to the bottom surface, a first driving mechanism is arranged in the driving block, and the first driving mechanism can drive the driving rod to rotate so as to drive the clamping assembly to move up and down while rotating around the driving block;

2. The blade edge grinding device according to claim 1, wherein the box comprises a base and a shell, the driving block is fixedly arranged on the shell, a sliding groove is formed in the base, the grinding assembly comprises a second driving mechanism, the second driving mechanism is connected with a fixed disc, and the second driving mechanism can drive the fixed disc to slide left and right along the sliding groove.

3. The device for grinding the edge of the knife and the blade according to claim 2, wherein the fixed disc is rotatably provided with a plurality of rotating rods, the rotating rods are parallel and obliquely arranged, the grinding abrasive belt is sleeved outside the rotating rods, one rotating rod is connected with a third driving mechanism in a transmission manner, and the third driving mechanism is used for driving the grinding abrasive belt to rotate.

4. The knife-edge grinder of claim 2, wherein the clamping assembly has two sets, one set being located at each end of the drive rod.

5. The device for grinding the edge of a knife and a shear blade according to claim 4, wherein the clamping assembly comprises two sliding rods and a fixing piece, two ends of the fixing piece are fixedly connected with the lower ends of the two sliding rods respectively, and the fixing piece is hinged with the driving rod.

6. The device for grinding the edge of a knife and a shear according to claim 5, wherein the bottom of the housing is provided with a sliding groove, the sliding groove is two circular grooves with the same diameter, the two circular grooves are provided with overlapping parts, and the two sliding rods slide along the respective sliding grooves, so that the distance between the two sliding rods is always consistent.

7. The blade edge grinding device according to claim 2, wherein the two ends of the driving rod are respectively connected with a return spring, the bottom of the shell is provided with a ring groove, and the other end of the return spring slides along the ring groove.

8. The blade edge grinding device according to claim 1, wherein a rotating shaft is fixed to the middle portion of the driving rod, and an output shaft of the first driving mechanism is connected to the rotating shaft.

9. The blade edge grinding device of claim 1, wherein the cross section of the driving block is circular, and the height of the bottom surface of the driving block gradually decreases from front to back.

10. A knife edge grinding apparatus according to claim 3, wherein the turning bars are provided with three.