Grinding wheel fixing mechanism for tool sharpener

Abstract

The utility model discloses a grinding wheel fixing mechanism for a tool sharpener, which relates to the technical field of tool sharpeners and comprises a mounting plate, a driving motor is fixedly connected below the mounting plate, and the output end of the driving motor is fixedly connected with one end of a rotating shaft. The other end of the rotating shaft penetrates through and extends out of the mounting supporting plate to be mounted on the grinding wheel body through a fixing assembly, and a sound absorption and heat dissipation assembly is arranged on the outer side of the driving motor. Through cooperation of a first limiting base, a protruding block, a clamping groove, a second limiting base, a groove, a two-way lead screw, a rotating button, a movable rod and a clamping rod, the rotating button is rotated, the two-way lead screw is controlled to rotate, then the movable rod on the two-way lead screw is driven to move, the clamping rod and the clamping groove are fixedly connected, and the grinding wheel body is convenient to disassemble and assemble; and through cooperation of the protective cover, the cooling fan and the glass fiber sound absorption cotton, noise generated by the motor is absorbed, the motor is assisted in heat dissipation, and the service life of the fixing mechanism is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of knife sharpeners, in particular to a grinding wheel fixing mechanism for knife sharpeners. Background Art

[0002] The knife grinder is a common knife sharpening tool in daily life, which can generally be used to grind the metal end surface. The grinding wheel is the grinding tool of the knife grinder. When grinding, it is necessary to select grinding wheels of different specifications and types according to the actual situation of the material and hardness of the straight knife to be ground. The grinding wheel is also very easy to wear, and the grinding wheel needs to be frequently disassembled and assembled. The existing grinding wheel fixing structure needs to use a special nut wrench to operate multiple nuts in sequence. The installation process is cumbersome, so a fixing structure that can quickly disassemble and assemble the grinding wheel is needed to improve work efficiency. For example, a grinding wheel fixing seat for a grinder recorded in the patent announcement number CN209380538U includes a grinding wheel fixing seat body, a fixing plate, a driving motor, a mounting support plate, a connecting shaft, a mounting hole, a concave hole, a mounting head, a fixed bullet, a telescopic button, a dust suction device, a protective cover and a fixing plate. The grinding wheel fixing seat for a grinder is easy to install and disassemble, making the fixation more stable, absorbing the noise generated by the motor, dissipating the internal heat, and extending the service life. However, the solution in this case uses a telescopic button to control the extension and retraction of the fixed bullet at the bottom of the connecting shaft, which is then matched with the recessed holes distributed on the grinding wheel fixing seat body to achieve the removal and installation of the grinding wheel. However, this connection method is very prone to accidental touching of the telescopic button, which may cause the grinding wheel fixing seat body to fall off, and has poor safety.

[0003] Based on this, a grinding wheel fixing mechanism for a knife sharpener is now provided, which can eliminate the disadvantages of the existing devices. Utility Model Content

[0004] The utility model aims to provide a grinding wheel fixing mechanism for a knife sharpener, so as to solve the problem that the grinding wheel installation fixing mechanism in the background technology has poor stability, is prone to accidental contact, and then falls off.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A grinding wheel fixing mechanism for a knife sharpener comprises a mounting plate, a driving motor is fixedly connected to the bottom of the mounting plate, an output end of the driving motor is fixedly connected to one end of a rotating shaft, the other end of the rotating shaft passes through and extends out of a mounting support plate and a grinding wheel body to achieve detachable installation through a fixing component, and a sound-absorbing and heat-dissipating component for reducing noise and assisting heat dissipation is provided on the outer side of the driving motor.

[0007] Preferably, a circular connecting hole is provided in the middle position of the grinding wheel body, and the fixing assembly includes a limit seat 1 inserted into the circular connecting hole from the side away from the rotating shaft, the limit seat 1 is provided with a protrusion on the side close to the rotating shaft, and the left and right sides of the protrusion are provided with clamping grooves, the end of the rotating shaft is fixedly connected to one side of the limit seat 2, and the other side of the limit seat 2 is provided with a groove matching the protrusion, a two-way screw rod is provided inside the limit seat 2, one end of the two-way screw rod passes through the limit seat 2 and is fixedly connected to the rotating button, a symmetrically arranged movable rod is threadedly connected to the two-way screw rod, one end of the movable rod is slidably connected to the limit seat 2, and the other end of the movable rod is fixedly connected to the clamping rod.

[0008] Preferably, the sound-absorbing and heat-dissipating assembly includes a protective cover arranged on the outside of the driving motor, the protective cover is fixedly connected to the mounting plate, glass fiber sound-absorbing cotton is fixedly connected to the inner wall of the protective cover, and heat-dissipating fans are fixedly connected to both sides of the bottom of the protective cover.

[0009] Preferably, a through hole for connecting the lines to pass through is provided in the middle of the mounting plate, and threaded holes are provided around the outer side of the through hole, and the threaded holes are used to connect with the knife sharpener equipment body.

[0010] Preferably, a rolling bearing is provided at the connection between the mounting support plate and the rotating shaft.

[0011] Preferably, a guide rod fixedly connected to the second limiting seat is provided on the front side of the bidirectional screw rod, and the guide rod is slidably connected to the movable rod.

[0012] Preferably, the sizes of the card slot and the card rod are matched.

[0013] Preferably, the cross-sections of the limit seat 1 and the limit seat 2 are both T-shaped, the size of the side of the limit seat 1 and the limit seat 2 facing each other is compatible with the size of the circular mounting hole on the grinding wheel body, and the size of the side of the limit seat 1 and the limit seat 2 facing away from each other is larger than the size of the circular mounting hole.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The present application realizes the coordination of the limit seat 1, the protrusion, the slot, the limit seat 2, the groove, the bidirectional screw, the rotating knob, the movable rod and the clamping rod, so that the rotation of the bidirectional screw can be controlled by rotating the rotating knob, thereby driving the movable rod on the bidirectional screw to move. The clamping rod and the slot are fixedly connected, which facilitates the disassembly and installation of the grinding wheel body.

[0016] 2. This application uses a protective cover, a cooling fan, and glass fiber sound-absorbing cotton to absorb the noise generated by the motor, assist the motor in heat dissipation, and extend the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of one side of the utility model.

[0019] Figure 3 It is a cross-sectional schematic diagram of the fixing component of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the second limiting seat of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the limiting seat 1 of the utility model.

[0022] Figure 6 For this utility model Figure 3 A is an enlarged view of the middle image.

[0023] Figure 7 It is a structural schematic diagram of the sound-absorbing and heat-dissipating component of the utility model.

[0024] Notes on the accompanying drawings: mounting plate 101, threaded hole 102, through hole 103, mounting support plate 104, rotating shaft 105, grinding wheel body 106, driving motor 107, bottom plate 108, fixing assembly 200, limit seat 1 201, protrusion 202, slot 203, limit seat 2 204, groove 205, bidirectional screw 206, rotating knob 207, movable rod 208, locking rod 209, sound-absorbing and heat-dissipating assembly 300, protective cover 301, heat-dissipating fan 302, glass fiber sound-absorbing cotton 303. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Example 1

[0027] See also Figure 1-Figure 7 A grinding wheel fixing mechanism for a knife sharpener includes a mounting plate 101, a driving motor 107 is fixedly connected to the bottom of the mounting plate 101, an output end of the driving motor 107 is fixedly connected to one end of a rotating shaft 105, the other end of the rotating shaft 105 penetrates and extends out of a mounting support plate 104 and a grinding wheel body 106 to achieve detachable installation through a fixing component 200, and a sound-absorbing and heat-dissipating component 300 is provided on the outer side of the driving motor 107 for reducing noise and assisting heat dissipation.

[0028] See also Figure 3-Figure 6A circular connecting hole is provided at the middle position of the grinding wheel body 106, and the fixing assembly 200 includes a limit seat 1 201 inserted into the circular connecting hole from the side away from the rotating shaft 105, and a protrusion 202 is provided on the side of the limit seat 1 201 close to the rotating shaft 105, and a groove 203 is provided on the left and right sides of the protrusion 202. The end of the rotating shaft 105 is fixedly connected to one side of the limit seat 204, and the other side of the limit seat 204 is provided with a groove 205 adapted to the protrusion 202. First, the limit seat 1 201 and the limit seat 204 are respectively inserted into the circular mounting holes from both sides, and the protrusion 202 on the limit seat 1 201 and the limit seat 2 2 The groove 205 on 04 realizes the positioning between the two. A bidirectional screw rod 206 is arranged inside the limit seat 204. One end of the bidirectional screw rod 206 passes through the limit seat 204 and is fixedly connected with a rotating button 207. When the rotating button 207 is rotated, the rotating button 207 drives the bidirectional screw rod 206 to rotate. A symmetrically arranged movable rod 208 is threadedly connected to the bidirectional screw rod 206. One end of the movable rod 208 is slidably connected to the limit seat 204, and the other end of the movable rod 208 is fixedly connected to the clamping rod 209. The movable rod 208 moves toward each other on the bidirectional screw rod 206, thereby driving the clamping rod 209 to move synchronously.

[0029] See also Figure 7 The sound-absorbing and heat-dissipating component 300 includes a protective cover 301 arranged on the outside of the driving motor 107. The protective cover 301 provides protection for the driving motor 107 to prevent it from being damaged by waste residue splashed during grinding. The protective cover 301 is fixedly connected to the mounting plate 101. Glass fiber sound-absorbing cotton 303 is fixedly connected to the inner wall of the protective cover 301. The glass fiber sound-absorbing cotton 303 on the protective cover 301 absorbs the noise generated by the driving motor 107. The bottom sides of the protective cover 301 are fixedly connected to cooling fans 302. The cooling fans 302 efficiently dissipate the heat generated by the driving motor 107 from the protective cover 301.

[0030] See also Figure 1-Figure 2 A through hole 103 for connecting the circuit is provided in the middle of the mounting plate 101. The connecting circuit passes through the through hole 103 and is electrically connected to the driving motor 107. A threaded hole 102 is provided around the outer side of the through hole 103. The threaded hole 102 is used to connect to the sharpener equipment body.

[0031] Example 2

[0032] See also Figure 1-Figure 2 A rolling bearing is provided at the connection between the mounting support plate 104 and the rotating shaft 105, and the rolling bearing makes the rotating shaft 105 rotate more smoothly to prevent jamming.

[0033] See also Figure 3A guide rod fixedly connected to the second limiting seat 204 is provided on the front side of the bidirectional screw rod 206 , and the guide rod is slidably connected to the movable rod 208 , and the guide rod realizes a guiding effect on the movement of the movable rod 208 .

[0034] See also Figure 3 The sizes of the slot 203 and the rod 209 are matched, and the rod 209 is inserted into the slot 203 to achieve a fixed connection between the limiting seat 1 201 and the limiting seat 204, thereby achieving a fixed installation of the grinding wheel body 106.

[0035] See also Figure 3-Figure 5 The cross-sections of the limit seat 1 201 and the limit seat 204 are both T-shaped. The size of the side facing each other of the limit seat 1 201 and the limit seat 204 is adapted to the size of the circular mounting hole on the grinding wheel body 106, so that the side opposite to the limit seat 1 201 and the limit seat 204 can be inserted into the circular mounting hole. The size of the side opposite to the limit seat 1 201 and the limit seat 204 is larger than the size of the circular mounting hole. The side opposite to the limit seat 1 201 and the limit seat 204 can prevent the grinding wheel body 106 from falling off.

[0036] When in use, firstly, it is threadedly connected to the sharpener device body through the threaded hole 102 on the mounting plate 101, and the line is connected through the through hole 103. The driving motor 107 drives the rotating shaft 105 to rotate, so that the grinding wheel body 106 can perform grinding work. The protective cover 301 outside the driving motor 107 absorbs noise through the glass fiber sound-absorbing cotton 303 on the inside. The cooling fan 302 at the bottom of the protective cover 301 efficiently dissipates the internal heat to improve the service life of the device. Turn the rotating button 207, and the rotating button 207 drives the bidirectional screw rod 206 to rotate. The movable rod 208 threadedly connected to the bidirectional screw rod 206 moves toward each other in the horizontal direction under the action of the guide rod, thereby driving the clamping rod 209 to insert into the clamping slot 203, so as to realize the detachable installation of the grinding wheel body 106.

[0037] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A grinding wheel fixing mechanism for a knife sharpener, comprising a mounting plate (101), a driving motor (107) being fixedly connected below the mounting plate (101), an output end of the driving motor (107) being fixedly connected to one end of a rotating shaft (105), characterized in that: The other end of the rotating shaft (105) passes through and extends out of the mounting support plate (104) and the grinding wheel body (106) to achieve detachable mounting via a fixing assembly (200), and a sound absorbing and heat dissipating assembly (300) for reducing noise and assisting heat dissipation is provided on the outer side of the driving motor (107).

2. A grinding wheel fixing mechanism for a knife sharpener according to claim 1, characterized in that: A circular connecting hole is provided in the middle of the grinding wheel body (106); the fixing assembly (200) comprises a limiting seat (201) inserted into the circular connecting hole from the side away from the rotating shaft (105); a convex block (202) is provided on the side of the limiting seat (201) close to the rotating shaft (105); and a clamping groove (203) is provided on the left and right sides of the convex block (202); the end of the rotating shaft (105) is fixedly connected to one side of the limiting seat (204); and the other side of the limiting seat (204) is provided with a protrusion (202) for contact with the protrusion. The second limit seat (204) is provided with a bidirectional screw rod (206) inside, one end of the bidirectional screw rod (206) passes through the second limit seat (204) and is fixedly connected to the rotating button (207), and a symmetrically arranged movable rod (208) is threadedly connected to the bidirectional screw rod (206), one end of the movable rod (208) is slidably connected to the second limit seat (204), and the other end of the movable rod (208) is fixedly connected to the clamping rod (209).

3. A grinding wheel fixing mechanism for a knife sharpener according to claim 1, characterized in that: The sound-absorbing and heat-dissipating assembly (300) comprises a protective cover (301) arranged outside the driving motor (107), the protective cover (301) being fixedly connected to the mounting plate (101), a glass fiber sound-absorbing cotton (303) being fixedly connected to the inner wall of the protective cover (301), and a heat-dissipating fan (302) being fixedly connected to both sides of the bottom of the protective cover (301).

4. The grinding wheel fixing mechanism for a knife sharpener according to claim 1, characterized in that: A through hole (103) for connecting the circuit is provided in the middle of the mounting plate (101), and threaded holes (102) are provided around the outer side of the through hole (103). The threaded holes (102) are used to connect to the knife sharpening machine body.

5. The grinding wheel fixing mechanism for a knife sharpener according to claim 1, characterized in that: A rolling bearing is provided at the connection between the mounting support plate (104) and the rotating shaft (105).

6. A grinding wheel fixing mechanism for a knife sharpener according to claim 2, characterized in that: A guide rod fixedly connected to the second limiting seat (204) is provided on the front side of the bidirectional screw rod (206), and the guide rod is slidably connected to the movable rod (208).

7. A grinding wheel fixing mechanism for a knife sharpener according to claim 2, characterized in that: The sizes of the clamping slot (203) and the clamping rod (209) are matched.

8. The grinding wheel fixing mechanism for a knife sharpener according to claim 2, characterized in that: The cross-sections of the limit seat 1 (201) and the limit seat 2 (204) are both T-shaped, the size of the side of the limit seat 1 (201) and the limit seat 2 (204) facing each other is compatible with the size of the circular mounting hole on the grinding wheel body (106), and the size of the side of the limit seat 1 (201) and the limit seat 2 (204) facing away from each other is larger than the size of the circular mounting hole.

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