Turnover mechanism for machining knives and scissors

Abstract

The utility model discloses a turnover mechanism for knife and shear processing, which relates to the technical field of knife and shear processing and comprises a processing seat, and a synchronous driving component and a plurality of knife and shear turnover components distributed at equal intervals are arranged on the processing seat. The knife and shear overturning assembly comprises an overturning shaft rotationally installed on the machining base, a worm gear fixedly arranged at one end of the overturning shaft in a sleeving mode, a clamp and a U-shaped frame fixedly connected to the other end of the overturning shaft. According to the clamp provided by the utility model, the positioning chucks on the two centering blocks are controlled to be centered and drawn close through the rotation of the two-way screw rod, so that knives and scissors with different specifications can be stably clamped; in the overturning process, all the worm sleeves on the transmission shaft are driven by the stepping motor to rotate synchronously, then all the worm gears meshed with all the worm sleeves can drive all the overturning shafts to rotate together, linkage of all the knife and shear overturning assemblies is achieved, then only one stepping motor needs to be arranged, the utilization rate of the motors is increased, and the cost is reduced. And the use cost of an enterprise is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of knife and scissors processing, in particular to a turnover mechanism used for knife and scissors processing. Background Art

[0002] Laser cladding technology is a new method to improve the surface properties of materials. Its principle is to add cladding material to the surface of the substrate and use high-energy density laser beam irradiation heating to melt the cladding material and the thin layer on the surface of the substrate and quickly solidify it, thereby achieving metallurgical bonding between the coating material and the base material, and obtaining a cladding layer with a non-porous, fine-grained microstructure and good mechanical properties. In addition, the laser cladding layer has good bonding strength and high hardness, and shows superiority in improving the wear resistance of the material. Therefore, this technology is widely used in the field of knife and scissors production.

[0003] To achieve laser cladding on the blade surface of scissors, it is usually necessary to flip the horizontally placed scissors so that the blade surface faces upward, thus requiring the use of a flipping mechanism. In actual operation, multiple scissors need to be processed at one time, thus requiring the setting of multiple flipping mechanisms for flipping operations. However, the prior art is not convenient for realizing the linkage of multiple flipping mechanisms, resulting in the need for a separate driving source for each flipping mechanism, which increases the use cost of the driving equipment. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a turnover mechanism for knife and scissors processing.

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

[0006] A turning mechanism for knife and scissors processing, comprising a processing seat, on which a synchronous drive assembly and a plurality of knife and scissors turning assemblies distributed at equal distances are arranged, wherein the knife and scissors turning assemblies comprise a turning shaft rotatably mounted on the processing seat, a worm gear fixedly sleeved on one end of the turning shaft, a clamp and a U-shaped frame fixedly connected to the other end of the turning shaft;

[0007] The synchronous drive assembly includes a support plate welded to the side wall of the processing seat, a stepper motor fixedly installed on the front outer wall of the support plate, a transmission shaft coaxially connected to the output shaft of the stepper motor through a coupling, and a plurality of worm sleeves fixedly mounted on the transmission shaft.

[0008] As a preferred technical solution, the clamp includes a bidirectional screw rotatably installed in the frame, two centering blocks symmetrically threaded on two opposite threaded ends of the bidirectional screw, and two positioning chucks fixedly connected to the outer walls of one side of the two centering blocks in sequence.

[0009] As a preferred technical solution, an anti-slip rotating cap is fixedly connected to the outer wall of one end of the bidirectional screw.

[0010] As a preferred technical solution, a limiting sliding groove is provided on an inner side wall of one side of the U-shaped frame, and the outer walls of the two centering blocks are slidably connected to the inner wall of the limiting sliding groove.

[0011] As a preferred technical solution, two bearing seats are symmetrically fixed to the front outer wall of the processing seat, and the transmission shaft is rotatably installed between the two bearing seats.

[0012] As a preferred technical solution, the number of the worm sleeves is the same as the number of the knife and scissors flipping assemblies, and each worm sleeve is meshed with each corresponding worm wheel in turn.

[0013] The beneficial effects of the utility model are:

[0014] 1. The clamp provided by the utility model controls the centering and approaching of the positioning chucks on the two centering blocks by the rotation of the bidirectional screw, and can stably clamp knives and scissors of different specifications to facilitate subsequent flipping;

[0015] 2. During the flipping process, the utility model drives all the worm sleeves on the transmission shaft to rotate synchronously through the stepper motor, and then the worm wheels meshing with the worm sleeves will drive all the flipping shafts to rotate together, thus realizing the linkage of all the knife and scissors flipping components, and only one stepper motor is needed, which improves the utilization rate of the motor and reduces the company's use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall front view of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model from the rear;

[0018] Figure 3 It is a schematic diagram of the back planar structure of the clamp in the utility model;

[0019] Figure 4 It is a three-dimensional enlarged structural schematic diagram of the clamp in the utility model;

[0020] Figure 5 It is a front planar structural schematic diagram of the synchronous drive component in the utility model.

[0021] In the figure: 1. Processing seat; 2. Flip shaft; 3. Worm gear; 4. U-shaped frame; 5. Bidirectional screw; 6. Centering block; 7. Positioning chuck; 8. Anti-slip rotating cap; 9. Limiting slide groove; 10. Support plate; 11. Stepper motor; 12. Bearing seat; 13. Transmission shaft; 14. Worm sleeve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example

[0024] Reference Figure 1-5 A turning mechanism for knife and scissors processing includes a processing seat 1, on which a synchronous drive component and a plurality of knife and scissors turning components distributed at equal distances are arranged, and the knife and scissors turning components include:

[0025] A turning shaft 2 and a worm gear 3, wherein the turning shaft 2 is rotatably mounted on the processing seat 1, and the worm gear 3 is fixedly sleeved on one end of the turning shaft 2;

[0026] A U-shaped frame 4 and a clamp, wherein the U-shaped frame 4 is fixedly connected to the other end of the flip shaft 2, and the clamp comprises a bidirectional screw 5 rotatably mounted in the frame, two centering blocks 6 symmetrically screwed on two opposite threaded ends of the bidirectional screw 5, and two positioning chucks 7 sequentially fixedly connected to the outer walls of one side of the two centering blocks 6;

[0027] Furthermore, an anti-skid rotating cap 8 is fixedly connected to the outer wall of one end of the bidirectional screw 5, and a limiting sliding groove 9 is provided on the inner side wall of one side of the U-shaped frame 4, and the outer walls of the two centering blocks 6 are slidably connected to the inner wall of the limiting sliding groove 9;

[0028] In this embodiment, the synchronous drive assembly includes a support plate 10 welded to the side wall of the processing seat 1, a stepper motor 11 fixedly mounted on the front outer wall of the support plate 10, a transmission shaft 13 coaxially connected to the output shaft of the stepper motor 11 through a coupling, and a plurality of worm sleeves 14 fixedly sleeved on the transmission shaft 13;

[0029] Furthermore, two bearing seats 12 are symmetrically fixed to the front outer wall of the processing seat 1, and the transmission shaft 13 is rotatably installed between the two bearing seats 12. The number of worm sleeves 14 is the same as the number of knife and scissors flipping assemblies, and each worm sleeve 14 is meshed with each corresponding worm wheel 3 in turn.

[0030] The working principle of this embodiment is as follows: first, the clamp is operated to clamp each knife or scissors to be processed, that is, the bidirectional screw 5 is driven to rotate by the anti-slip rotating cap 8, and then under the limit of the limit slide 9, the two centering blocks 6 threadedly connected with the bidirectional screw 5 will drive the two positioning chucks 7 to center and close together to stably clamp the knife or scissors;

[0031] Secondly, when it is necessary to flip the clamped scissors, the stepper motor 11 drives all the worm sleeves 14 on the transmission shaft 13 to rotate synchronously, and then the worm wheels 3 engaged with the worm sleeves 14 will drive all the flipping shafts 2 to rotate together, so that all the clamped scissors can be flipped together.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A turning mechanism for knife and scissors processing, comprising a processing seat (1), characterized in that: The processing seat (1) is provided with a synchronous drive assembly and a plurality of knife and scissor flip assemblies which are equidistantly distributed, and the knife and scissor flip assemblies include a flip shaft (2) rotatably mounted on the processing seat (1), a worm gear (3) fixedly mounted on one end of the flip shaft (2), a clamp, and a U-shaped frame (4) fixedly connected to the other end of the flip shaft (2); The synchronous drive assembly comprises a support plate (10) welded to the side wall of the processing seat (1), a stepper motor (11) fixedly mounted on the front outer wall of the support plate (10), a transmission shaft (13) coaxially connected to the output shaft of the stepper motor (11) via a coupling, and a plurality of worm sleeves (14) fixedly sleeved on the transmission shaft (13).

2. A turning mechanism for knife and scissors processing according to claim 1, characterized in that: The clamp comprises a bidirectional screw (5) rotatably mounted in a mold frame, two centering blocks (6) symmetrically threaded on two opposite threaded ends of the bidirectional screw (5), and two positioning chucks (7) fixedly connected in sequence to the outer walls of one side of the two centering blocks (6).

3. A turning mechanism for knife and scissors processing according to claim 2, characterized in that: An anti-slip rotation cap (8) is fixedly connected to the outer wall of one end of the bidirectional screw (5).

4. The turning mechanism for knife and scissors processing according to claim 1, characterized in that: A limiting sliding groove (9) is provided on the inner side wall of one side of the U-shaped frame (4), and the outer walls of the two centering blocks (6) are both slidably connected to the inner wall of the limiting sliding groove (9).

5. The turning mechanism for knife and scissors processing according to claim 1, characterized in that: Two bearing seats (12) are symmetrically fixed on the front outer wall of the processing seat (1), and the transmission shaft (13) is rotatably installed between the two bearing seats (12).

6. The turning mechanism for knife and scissors processing according to claim 1, characterized in that: The number of the worm sleeves (14) is the same as the number of the knife and scissors flipping assemblies, and each worm sleeve (14) is meshed with each corresponding worm wheel (3) in sequence.

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