Feeding device for dovetail clamp machining

Abstract

The utility model discloses a feeding device for processing a dovetail clamp, which comprises a feeding frame, a feeding roller is arranged at the front end in the feeding frame, a lifting seat is arranged at the rear end in the feeding frame, a top die is arranged below the lifting seat, a base is arranged below the top die, a bottom die opposite to the top die is arranged on the base, and a feeding roller is arranged at the front end in the feeding frame. A feeding roller is arranged on the base, a lifting seat is arranged on the base, a motor is arranged on the inner wall of the feeding frame and located between the feeding roller and the lifting seat, an output shaft of the motor is sleeved with a vertical plate, a driving wheel is arranged at the end, away from the motor, of the vertical plate, and a supporting seat is arranged on the base and located between the feeding roller and the lifting seat. The length size of the spring steel belt is smaller than the shortest distance size between the feeding rollers and the top die, the tail end of the spring steel belt is not located between the two sets of feeding rollers, a worker stretches into the device to move the spring steel belt, and certain potential safety hazards exist. According to the spring steel belt feeding device, a worker can conveniently move the spring steel belt between the feeding roller and the top die.

Description

Technical Field

[0001] The utility model relates to the technical field of dovetail clamp processing equipment, in particular to a feeding device for dovetail clamp processing. Background Art

[0002] A dovetail clip is a type of clip-type stationery made of metal. It is used to hold a stack of documents together. It is also called a phoenix tail clip or a ticket clip. It has a removable handle and can hold papers tightly and is not easy to fall off. It is made of pure metal, is easy to disassemble, can be recycled, and is environmentally friendly and durable.

[0003] The Chinese utility model patent with application number CN201922033923.8 discloses a mechanical feeding mechanism for dovetail clamp forming processing, including a forming device that can be lifted and lowered reciprocatingly and a feeding rack arranged on one side of the forming device, wherein a pair of feeding rollers connected together by transmission and used to clamp a spring steel strip are arranged in the feeding rack, a driving gear is arranged on the feeding roller, and a rack meshing with the driving gear is arranged above the driving gear, the forming device is connected to the rack via a transmission assembly, and lifting the forming device can drive the rack to reciprocate so that the driving gear rotates. Compared with the prior art, this utility model uses the mechanical transmission of the rack by the transmission assembly according to the lifting action of the top mold in the forming device, so that it moves horizontally, thereby driving the driving gear meshing with the rack, and finally driving the feeding roller clamping the spring steel strip to rotate, and feeding the spring steel strip into the forming device, completing the feeding action, and improving production efficiency.

[0004] However, when stamping the last section of the spring steel strip, the length of the spring steel strip is shorter than the shortest distance between the feed roller and the top die. The end of the spring steel strip is not between the two sets of feed rollers. When personnel reach inside to move the spring steel strip, there are certain safety hazards. Utility Model Content

[0005] The utility model aims to provide a feeding device for processing dovetail clamps, which can facilitate personnel to move a spring steel belt between a feeding roller and a top die.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a feeding device for dovetail clamp processing, including a feeding rack, a feeding roller is arranged at the front end of the feeding rack, a lifting seat is arranged at the rear end of the feeding rack, a top mold is arranged under the lifting seat, a base is arranged under the top mold, a bottom mold opposite to the top mold is arranged on the base, a motor is arranged on the inner wall of the feeding rack between the feeding roller and the lifting seat, the output shaft sleeve of the motor is provided with a vertical plate, a driving wheel is arranged on the end of the vertical plate away from the motor, and a support seat is arranged on the base between the feeding roller and the lifting seat.

[0007] Preferably, a base plate is provided on the inner wall of the feeding rack, a through hole is opened on the vertical plate, an electromagnetic suction block 1 is provided in the through hole, a magnetic suction block 1 is sleeved on the outer wall of the output shaft of the motor and magnetically cooperates with the electromagnetic suction block 1, a driving wheel is provided on the base plate, the driving wheel is rotatably connected to the vertical plate through a connecting rod, a driven wheel with a driving wheel belt transmission is sleeved on the connecting rod, the driving wheel is provided with an electromagnetic suction block 2, and a magnetic suction block 2 is magnetically cooperated with the electromagnetic suction block 2 is provided on the output shaft of the motor.

[0008] Preferably, a torsion spring is provided on the vertical plate, the motor is connected to the inner wall of the feeding rack via a connecting plate, one end of the torsion spring is connected to the connecting plate, and the other end thereof is connected to the vertical plate.

[0009] Preferably, the outer wall of the driving wheel is provided with a friction pad.

[0010] Preferably, an infrared transmitter is arranged on the outer wall of the base, and an infrared receiver matching with the infrared transmitter is arranged on the lifting seat.

[0011] Preferably, rollers are provided on the support seat.

[0012] The beneficial effects of the utility model are as follows: a vertical plate is arranged between the feed roller and the top mold, a driving wheel is arranged on the vertical plate, the vertical plate is driven by a motor, and the driving wheel on the vertical plate pushes the spring steel strip between the feed roller and the top mold to the bottom of the top mold without the need for personnel to reach in and push. Compared with the prior art, the utility model can move the spring steel strip between the feed roller and the top mold without the need for personnel to manually move, thereby reducing certain safety hazards. At the same time, matching infrared transmitters and infrared receivers are arranged on the outer wall of the base and the outer wall of the lifting seat to facilitate detection of whether the spring steel strip has moved to a suitable position, without the need for personnel to manually check, thereby reducing a certain amount of labor for personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram for showing a partial structure of a feeding rack in one embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram for showing some mechanisms inside the feeding rack in one embodiment of the utility model;

[0015] Figure 3 for Figure 2 A schematic diagram of the structure cut along the AA direction;

[0016] Figure 4 for Figure 3 Enlarged view of part C;

[0017] Figure 5 for Figure 2A schematic diagram of the structure cut along the BB direction;

[0018] Figure 6 for Figure 5 A magnified view of part D in the middle;

[0019] Figure 7 It is a cross-sectional view for separately displaying part of the mechanism on the vertical plate in one embodiment of the utility model.

[0020] Figure numerals: 1. feeding rack; 2. feeding roller; 3. lifting seat; 4. top mold; 5. base; 6. bottom mold; 7. motor; 8. vertical plate; 9. driving wheel; 10. supporting seat; 11. bottom plate; 12. through hole; 13. electromagnetic suction block 1; 14. magnetic suction block 1; 15. driving wheel; 16. connecting rod; 17. driven wheel; 18. electromagnetic suction block 2; 19. magnetic suction block 2; 20. connecting plate; 21. torsion spring; 22. friction pad; 23. infrared receiver; 24. infrared transmitter; 25. spring steel belt. DETAILED DESCRIPTION

[0021] The following is only a preferred implementation of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. At the same time, it should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0022] It should be noted that, in this article, relational terms such as first and second, such as "connecting board one, connecting board two", etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0023] The directional words mentioned in this embodiment, such as "up, down, left, right", etc., are only used in conjunction with the drawings to enable technicians in this technical field to understand the relationship between various features or parts.

[0024] In this embodiment, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0025] like Figures 1 to 7As shown, a feeding device for dovetail clamp processing includes a feeding frame 1, a feeding roller 2 is arranged inside the feeding frame 1, a lifting seat 3 is arranged at the rear end of the feeding frame 1, a top mold 4 is arranged on the lower side of the lifting seat 3, a base 5 is arranged at the bottom end of the feeding frame 1 directly below the top mold 4, and a bottom mold 6 opposite to the top mold 4 is arranged on the base 5. In this embodiment, the width of the spring steel belt 25 conveyed on the feeding roller 2 is smaller than the length of the feeding roller 2, the purpose of which is to make a certain gap between the spring steel belt 25 and the inner wall of the feeding frame 1, and a spring steel belt 25 is arranged on the inner wall of the feeding frame 1 between the feeding roller 2 and the lifting seat 3. A motor 7 is arranged, and a vertical plate 8 is sleeved on the output shaft of the motor 7. A through hole 12 is opened on the vertical plate 8. An electromagnetic suction block 13 is arranged on the inner wall of the through hole 12. A magnetic suction block 14 is sleeved on the outer wall of the output shaft of the motor 7 for magnetically cooperating with the electromagnetic suction block 13. The motor 7 is connected to the inner wall of the feeding rack 1 through a connecting plate 20. A torsion spring 21 is arranged on the vertical plate 8. The torsion spring 21 is sleeved on one end of the output shaft of the motor 7 between the connecting plate 20 and the vertical plate 8. The lower end of the torsion spring 21 is fixedly connected to the upper side of the vertical plate 8, and the upper end thereof is fixedly connected to the lower side of the connecting plate 20. The purpose is to be able to reset the position of the vertical plate 8.

[0026] The upper side of one end of the vertical plate 8 away from the motor 7 is rotatably connected to the driving wheel 9 through a connecting rod 16. A friction pad 22 is sleeved on the outer wall of the driving wheel 9, and its purpose is to increase the friction force in contact with the surface of the spring steel belt 25. The lower end of the connecting rod 16 is sleeved with a driven wheel 17. A bottom plate 11 is provided on the vertical plate 8 just below one end of the motor 7. The bottom plate 11 is fixed to the inner wall of the feeding rack 1, and a driving wheel 15 is rotatably provided on the upper side thereof. The driving wheel 15 is connected to the driven wheel 17 by a belt transmission, and an electromagnetic suction block 18 is provided on the upper side of the driving wheel 15. A magnetic suction block 19 19 that magnetically cooperates with the electromagnetic suction block 18 is provided at the top end of the output shaft of the motor 7.

[0027] A support seat 10 is arranged on the base 5 between the feed roller 2 and the lifting seat 3, and its purpose is to provide bottom support for one end of the spring steel strip 25 located between the feed roller 2 and the lifting seat 3. A plurality of groups of rollers (not shown in the drawings) are embedded on the upper side of the support seat 10 along its length direction, and its purpose is to reduce the contact friction between the spring steel strip 25 and the surface of the support seat 10, and to facilitate the movement of the spring steel strip 25. An infrared transmitter 24 is arranged on the outer wall of the base 5, and an infrared receiver 23 matched with the infrared transmitter 24 is arranged on the lifting seat 3. In this embodiment, the infrared transmitter 24 and the infrared receiver 23 are respectively located on the side of the base 5 and the lifting seat 3 away from the feed roller 2, and their purpose is to detect whether the front end of the spring steel strip 25 moves out of the range of the top mold 4 and the bottom mold 6, so as to avoid some spring steel strips 25 with shorter lengths that cannot meet the processing length and are pushed into the processing.

[0028] When the personnel start to process the longer-sized spring steel strip 25, the electromagnetic suction block 13 is in the energized state and is magnetically matched with the magnetic suction block 14, the electromagnetic suction block 2 18 is in the de-energized state, the driving wheel 9 contacts the side wall of the conveyed spring steel strip 25 and rotates around the central axis of the connecting rod 16, the torsion spring 21 is in the initial state, the motor 7 is in the de-energized state, and the infrared transmitter 24 and the infrared receiver 23 are in the started state.

[0029] When the spring steel strip 25 is processed to the last section, its length dimension is smaller than the minimum distance dimension from the feed roller 2 to the top mold 4. At this time, the end of the spring steel strip 25 is sent out from the feed roller 2, and its end is located on the support seat 10. The personnel can first control the electromagnetic suction block 13 to lose power and the electromagnetic suction block 2 18 to be energized through the control system. The electromagnetic suction block 2 18 cooperates with the magnetic suction block 2 19 on the driving wheel 15, and then control the motor 7 to start. The motor 7 indirectly drives the driving wheel 15. The driving wheel 15 is connected to the driven wheel 17 with a transmission. The driven wheel 17 allows the driving wheel 9 to rotate around the central axis of the driven wheel 17 through the connecting rod 16. The driving wheel 9 contacts the end side wall of the spring steel strip 25 and drives the spring steel strip 25 to move horizontally just below the top mold 4 until the driving wheel 9 does not contact the side wall of the spring steel strip 25. If the spring steel strip 25 has not reached the appropriate position at this time, the personnel can start the electromagnetic suction block 2 18 to lose power through the control system, and the electromagnetic suction block 13 starts to be energized and cooperates with the magnetic suction block 14. The motor 7 is started, and the electromagnetic suction block 2 18 indirectly drives the vertical plate 8 to rotate around the axis of the central rod of the output shaft of the motor 7, so that the driving wheel 9 on the vertical plate 8 contacts the end surface of the spring steel strip 25 and pushes it horizontally to the bottom of the top mold 4. The torsion spring 21 starts to accumulate force until the front end of the spring steel strip 25 is located between the infrared transmitter 24 and the infrared receiver 23. The motor 7 stops, and then the electromagnetic suction block 13 is controlled to lose power. The torsion spring 21 starts to drive the vertical plate 8 to reset, so as to avoid interference between the top mold 4 and the vertical plate 8 when the top mold 4 moves.

[0030] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A feeding device for processing dovetail clamps, comprising a feeding frame (1), wherein a feeding roller (2) is arranged at the front end of the feeding frame (1), a lifting seat (3) is arranged at the rear end of the feeding frame (1), a top die (4) is arranged below the lifting seat (3), a base (5) is arranged below the top die (4), and a bottom die (6) opposite to the top die (4) is arranged on the base (5), It is characterized in that A motor (7) is arranged on the inner wall of the feeding frame (1) between the feeding roller (2) and the lifting seat (3); an output shaft sleeve of the motor (7) is provided with a vertical plate (8); and a driving wheel (9) is arranged on one end of the vertical plate (8) away from the motor (7); A support seat (10) is provided on the base (5) between the feeding roller (2) and the lifting seat (3).

2. A feeding device for dovetail clamp processing according to claim 1, characterized in that: The inner wall of the feeding frame (1) is provided with a bottom plate (11), the vertical plate (8) is provided with a through hole (12), an electromagnetic suction block (13) is provided in the through hole (12), the outer wall of the output shaft of the motor (7) is provided with a magnetically attracted block (14) that is magnetically matched with the electromagnetic suction block (13), a driving wheel (15) is provided on the bottom plate (11), the driving wheel (9) is rotatably connected to the vertical plate (8) through a connecting rod (16), a driven wheel (17) that is driven by the driving wheel (15) is provided on the connecting rod (16), the driving wheel (15) is provided with an electromagnetic suction block (18), and the output shaft of the motor (7) is provided with a magnetically attracted block (19) that is magnetically matched with the electromagnetic suction block (18).

3. A feeding device for dovetail clamp processing according to claim 1, characterized in that: A torsion spring (21) is provided on the vertical plate (8); the motor (7) is connected to the inner wall of the feeding rack (1) via a connecting plate (20); one end of the torsion spring (21) is connected to the connecting plate (20) and the other end is connected to the vertical plate (8).

4. A feeding device for dovetail clamp processing according to claim 1, characterized in that: The outer wall of the driving wheel (9) is sleeved with a friction pad (22).

5. A feeding device for dovetail clamp processing according to claim 1, characterized in that: An infrared transmitter (24) is arranged on the outer wall of the base (5), and an infrared receiver (23) matched with the infrared transmitter (24) is arranged on the lifting seat (3).

6. A feeding device for dovetail clamp processing according to claim 1, characterized in that: The support seat (10) is provided with a roller.

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