Pushing device of dotter

Abstract

The utility model discloses a pushing device of a button punching machine, which comprises a track arranged at a discharge port of a vibrating disc and used for accommodating rivet pieces, and a pushing table, a pushing piece and a pushing device are arranged at the end of the track. The pushing device pushes the pushing piece to move on the pushing table in a reciprocating mode. The pushing piece comprises a long arm and a short arm which are matched with each other; the long arm and the short arm can be connected in a sliding mode in the direction opposite to the pushing direction. The ends, close to the tail end of the track, of the long arm and the short arm are matched to form a bayonet used for clamping and limiting a rivet piece. The long arm is in driving connection with the pushing device; in the pushing direction, the short arm is further matched with a limiting piece. And the limiting piece is used for limiting the initial position of the short arm at the end of the rail. The utility model provides the material pushing mechanism applied to the rivet piece with the protruding structure, the rivet piece can be pushed to a machining station from the discharging port of the vibration disc, the automation degree is high, and the production efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of button-driving machines, in particular to a rivet piece pushing device of a button-driving machine. Background Art

[0002] The button machine (also known as the four-button machine, beer machine, button-installing machine) has a simple structure, single action, easy operation, and low price. It is mainly used for the nailing of various metal buttons, decorative buttons, I-shaped buttons, and air eyes. It is widely used in garment factories and leather bag processing enterprises. The metal buttons on the market have different shapes, but they all include at least one metal rivet part. The end face of one end of this rivet part is slightly flat, and the end face of the other end is provided with a protruding cylindrical structure or cylindrical structure along the center of the end face. During the processing, multiple rivet parts are arranged in a single row on the track of the vibration plate, and gradually approach the discharge port in a spiral ascending manner. After the single rivet part comes out of the discharge port, it will be transported to the processing station for buttoning processing. If the metal buckle is composed of a rivet part and a thin gasket, the processing process is to first transfer the gasket to the processing station through a reciprocating push mechanism; secondly, the processing head picks up the slightly flat end of the rivet part and transfers it to the processing station, and then directly presses down for riveting after transfer. If the metal buckle contains two rivet parts with protruding structures, such as one rivet part with a protruding cylindrical structure and the other rivet part with a protruding cylindrical structure, these two rivet parts cannot be picked up and transported by the same set of processing heads. The reason is that during the processing of the two rivet parts, the protruding structures are located opposite to each other, and the processing head often cannot pick up the protruding structures on the rivet parts, resulting in one of the rivet parts needing to be moved manually or by another mechanism, which is inefficient. Summary of the invention

[0003] In view of the problems existing in the prior art, the utility model provides a pushing mechanism applied to a rivet part with a protruding structure, which can push the rivet part from the discharge port of the vibration plate to the processing station. The utility model is implemented through the following technical solutions:

[0004] A pushing device of a button-driving machine comprises a track for accommodating rivet parts arranged at the discharge port of a vibrating plate, a pushing platform, a pushing member and a pushing device are arranged at the end of the track; the pushing device pushes the pushing member to reciprocate on the pushing platform; the pushing member comprises a long arm and a short arm that cooperate with each other; the long arm and the short arm can be slidably connected in a direction opposite to the pushing direction; the long arm and the short arm cooperate to form a latch for clamping the rivet part at one end close to the end of the track; the long arm is drivingly connected to the pushing device; in the pushing direction, the short arm is also equipped with a limit member; the limit member is used to limit the initial position of the short arm at the end of the track.

[0005] Furthermore, a groove for accommodating the rivet member is provided on the track, and a notch is provided on one side of the end of the groove. The notch is located in the pushing direction, and the pushing member is directly opposite to the notch.

[0006] Furthermore, an elastic member is connected between the long arm and the short arm, and the extension and retraction direction of the elastic member corresponds to the pushing direction.

[0007] Furthermore, the long arm and the short arm are slidably matched through a sliding member; the short arm is provided with a accommodating cavity whose length direction is parallel to the pushing direction; one end of the sliding member is restricted to the outside of the accommodating cavity, and the other end passes through the accommodating cavity and is fixedly connected to the long arm.

[0008] Furthermore, an elastic member is disposed in the accommodating cavity, one end of the elastic member is connected to the inner wall surface of the accommodating cavity, and the other end of the elastic member is connected to the sliding member.

[0009] Furthermore, the limiting member is arranged on the pushing platform, and the limiting member is provided with a stopper protruding upward; and a first limiting portion for limiting the stopper is provided on one side of the short arm.

[0010] Furthermore, the bayonet includes an arc-shaped hook portion arranged on the short arm, and an arc-shaped recessed portion arranged on the long arm opposite to the arc-shaped hook portion; it also includes a hard limit, and the hard limit includes two opposite sides of the long arm and the short arm, and a second limit portion and a third limit portion engaged along the pushing direction are respectively provided.

[0011] Furthermore, a soft limit for limiting the aperture of the bayonet is provided between the long arm and the short arm, and the soft limit includes a clamping piece provided on the side of the long arm facing the short arm, the clamping piece has a waist-shaped hole, and the long arm is connected to the long arm by a fixing screw passing through the waist-shaped hole; the clamping piece is limited against the short arm.

[0012] Furthermore, further, a waist-shaped hole is opened on the limiting member, and the pushing platform is connected to the limiting member by a fixing screw passing through the waist-shaped hole.

[0013] Furthermore, the pushing device is a stroke cylinder.

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

[0015] The utility model utilizes the vibration mechanism of the vibration disk to realize the automatic feeding of the rivet part in the track groove. When the rivet part is close to the pushing part, the long arm and the short arm are staggered through sliding cooperation, so that the rivet part can enter the bayonet of the pushing part. After the rivet part enters the bayonet, the long arm is reset under the drive of the pushing device, and drives the short arm to clamp the rivet part and push it along the pushing table until it reaches the working position for rivet processing. After reaching the processing position, the rivet part automatically falls, and the long arm drives the short arm to return to the initial position under the drive of the driving device. The utility model has a reasonable structure, can greatly improve production efficiency, reduce costs, and can also adjust the caliber of the bayonet through soft limit so that it can adapt to rivets of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the pusher of the utility model when it is in the initial position;

[0017] Figure 2 for Figure 1 A magnified view of part A;

[0018] Figure 3 It is a top view of the pusher of the utility model when it is in the initial position;

[0019] Figure 4 It is a three-dimensional diagram of the pushing member of the utility model pushing the rivet member to the working position;

[0020] Figure 5 It is a three-dimensional diagram of the pushing member of the utility model;

[0021] Figure 6 It is an exploded view of the pushing member of the utility model. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0024] Below, combined with the attached Figure 1-6 And specific implementation methods, the utility model is further described:

[0025] A pushing device of a button-making machine includes a track 2 for accommodating rivet parts arranged at the discharge port of a vibration plate 1, and a groove 20 with a size matching the rivet parts 3 and allowing the rivet parts 3 to pass through is arranged on the track 2; at the end of the track 2, that is, the end of the groove 20 away from the vibration plate 1, a pushing platform 4, a pushing member 5 and a pushing device 6 are arranged. When the rivet part 3 comes out of the discharge port of the vibration plate 1, it is in a state with a slightly flat end facing downward and a cylindrical protrusion end facing upward. Since the track 2 is fixedly connected to the vibration plate 1, the rivet part 3 gradually moves toward the pushing platform 4 in the groove 20 under the influence of the vibration mechanism of the vibration plate 1. The groove 20 is used to limit the movement direction of the rivet part 3 to ensure that the rivet part 3 can move forward in a single row. The pushing device 6 pushes the pushing member 5 to reciprocate on the pushing platform 4; for ease of understanding, the utility model sets two relatively fixed positions, a pushing position 7 and a riveting working position 8. The rivet part 3 moves to the end through the groove 20 and is captured by the pusher 5. The capture position is the push position 7. As shown in the accompanying drawings of the specification, the push position 7 is arranged at the end of the track groove 20. A notch 21 is arranged on one side of the end of the groove 20, and the notch 21 is located in the pushing direction, and the pusher 5 is directly opposite to the notch 21. After the pusher 5 captures the rivet part 3, it moves along the notch 21 to the push platform 4 to prevent the groove 20 from obstructing the pushing of the rivet part 3. In some embodiments, the push position can also be located on the push platform 4. That is, the rivet part 3 moves to the end through the groove 20 and moves to the push platform 4 outside the groove 20.

[0026] The pushing member 5 includes a long arm 51 and a short arm 52. The long arm 51 and the short arm 52 have both a sliding fit and a connection. This connection relationship allows the long arm 51 and the short arm 52 to slide against each other only briefly, but cannot be separated from each other, because the pushing movement requires the long arm 51 to drive the short arm 52 to move together. The sliding direction of the long arm 51 and the short arm 52 is opposite to the pushing direction. The long arm 51 and the short arm 52 are formed with a bayonet 53 for clamping the rivet member 3 at one end close to the end of the track 2, that is, the pushing position 7; the long arm 51 is drivingly connected to the pushing device 6; in the pushing direction, the short arm 52 is also matched with a limiter 9; the limiter 9 is used to limit the initial position of the short arm 52 at the end of the track 2. The pushing position 7 is also consistent with the initial position of the short arm 52 at the end of the track 2.

[0027] More specifically, on the push position 7, the bayonet 53 is a wall structure similar to a through hole that runs through the top and bottom. The wall structure is composed of a part of a long arm 51 and a part of a short arm 52, and can only accommodate one rivet 3 or a cylindrical structure or a cylindrical structure of a rivet 3 protruding upward. Since the bottom of the bayonet 53 is empty, the pusher 5 needs a relatively stable push plane as a bottom support to push the rivet 3, and the push table 4 exists as a support structure. Of course, in some embodiments, the push table 4 can also be integrated with the frame of the button machine and become a part of the overall frame. The working position 8 is at the end of the push table 4. When the pusher 5 pushes the riveted part 3 from the push position 7 to the working position 8, since there is no push table 4 as a support on the working position 8, the riveted part 3 falls from the pusher bayonet 53 to the working position 8, waiting for riveting processing. The push device 6 is responsible for reciprocating the pusher 5 between the push position 7 and the working position 8.

[0028] In this embodiment, the surrounding wall structure can only accommodate the upward protruding cylindrical structure of the rivet member 3. When the long arm 51 and the short arm 52 slide relative to each other, the bayonet 53 forms an opening due to the misaligned positions of the long arm 51 and the short arm 52. The opening is used to receive the rivet member that gradually approaches the track groove; to ensure the mutual sliding of the long arm 51 and the short arm 52 and the smooth formation of the opening, the short arm 52 is restricted by the limiting member 9 and can only move forward in the pushing direction at the pushing position 7, and cannot move backward. Driven by the pushing device 6, the long arm 51 slides backward in the direction opposite to the pushing direction, the bayonet 53 is misaligned, and the opening is opened. When the rivet member 3 smoothly enters the bayonet 53 through the opening, the long arm 52 is driven by the pushing device 6 to slide back, the opening becomes smaller or even closed, and the upward protruding cylindrical structure of the rivet member 3 is restricted inside the bayonet 53. More specifically, after resetting, the long arm 51 and the short arm 52 need to be in a relatively fixed connection state where sliding is not allowed. On the one hand, it is ensured that the rivet part 3 remains in the bayonet 53, and on the other hand, the long arm 51 needs to drive the short arm 52 to move toward the working position 8 to perform the pushing task.

[0029] The long arm 51 and the short arm 52 are slidably matched through a sliding member 10; the short arm 52 is provided with a receiving cavity 520 whose length direction is parallel to the pushing direction; the receiving cavity 520 is through-connected from front to back, one end of the sliding member 10 is restricted outside the receiving cavity 520, and the other end passes through the receiving cavity 520 and is fixedly connected to the long arm 51. The matching of the sliding member 10 and the receiving cavity 520 prevents the long arm 51 and the short arm 52 from being separated from each other in the front-back and left-right directions. The sliding range of the sliding member 10 depends on the length of the receiving cavity 520.

[0030] More specifically, the pushing device 6 is a stroke cylinder.

[0031] More specifically, the limiting member 9 is disposed on the pushing platform 4, and the limiting member 9 is provided with a stopper 91 protruding upward; a first stopper portion 521 for stopping the stopper 91 is provided on one side of the short arm 52;

[0032] More specifically, an elastic member 11 may be disposed between the long arm 51 and the short arm 52, and the expansion and contraction direction of the elastic member 11 corresponds to the pushing direction. The elastic member 11 is used to mitigate the impact of the long arm 51 and the short arm 52 when they enter the driving connection relationship after sliding and resetting, and to ensure that the rivet member 3 can be stably restricted in the bayonet 53 during the pushing movement.

[0033] As shown in the accompanying drawings of the specification, the elastic member 11 of this embodiment is preferably arranged in the accommodating cavity 520 , with one end of the elastic member 11 abutting against the inner wall of the accommodating cavity 520 , and the other end abutting against the portion of the sliding member 10 located in the accommodating cavity 520 .

[0034] More specifically, the present embodiment discloses a shape of a bayonet 53, including an arc-shaped hook portion 522 disposed on the short arm 52, and an arc-shaped recessed portion 510 disposed on the long arm 51 and opposite to the hook portion 522; when the long arm 51 moves back and forth between the push position 7 and the working position 8, it is necessary to establish a driving connection relationship with the short arm 52. Although the hook portion 522 and the recessed portion 510 conflict with each other, a part of the driving function can be realized, and the sliding member 10 can also realize the driving function by sliding back and forth in the accommodating chamber 520. However, the realization of this function will accelerate the wear of the hook portion 522 and the recessed portion 510 and the wear of the sliding member 10. At the same time, this functional structure will only make the caliber of the bayonet 53 located on the push position 7 relatively fixed in the reset state, and the flexibility is not strong, and adaptive adjustment cannot be performed for rivet parts 3 of different sizes.

[0035] To this end, this embodiment provides a hard limit driving scheme when the long arm 51 drives the short arm 52 to be pushed from the pushing position 7 to the working position 8. The hard limit is arranged on two opposite sides of the long arm 51 and the short arm 52, and includes a second limit portion 511 arranged on one side of the long arm 51 and a third limit portion 523 arranged on the short arm 52. When the long arm 51 is reset at the pushing position 7, the second limit portion 511 approaches and fits into the third limit portion 523 along the pushing direction.

[0036] Of course, the above-mentioned hard limit can only avoid the wear problem of the hook 522, the recess 510, etc., and still cannot solve the problem of flexible adjustment of the caliber of the bayonet 53. For this reason, this embodiment also provides a driving solution of soft limit, that is, a clamp 12 is provided on the side of the long arm 51 facing the short arm 52, and the clamp 12 is provided with a waist-shaped hole 120. The long arm 51 is connected to the long arm 51 by a fixing screw 13 passing through the waist-shaped hole 120; the clamp 12 is limited by the short arm 52. The fixing screw 13 changes the caliber of the bayonet 53 by adjusting the position on the waist-shaped hole 120, thereby achieving adaptive adjustment.

[0037] Based on this principle, a waist-shaped hole may also be provided on the limit member 9, and the pushing platform is connected to the limit member by means of a fixing screw passing through the waist-shaped hole, thereby adjusting the position of the first limiting portion 91 and improving the matching degree of each structural component.

[0038] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the utility model.

Claims

1. A material pushing device of a button-making machine, comprising a track for accommodating rivets arranged at a material outlet of a vibration plate, characterized in that: A pushing platform, a pushing member and a pushing device are provided at the end of the track; the pushing device pushes the pushing member to reciprocate on the pushing platform; the pushing member includes a long arm and a short arm that cooperate with each other; the long arm and the short arm can be slidably connected in a direction opposite to the pushing direction; the long arm and the short arm cooperate to form a bayonet for clamping the rivet member at one end close to the end of the track; the long arm is drivingly connected to the pushing device; in the pushing direction, the short arm is also equipped with a limiting member; the limiting member is used to limit the initial position of the short arm at the end of the track.

2. A material pushing device for a button-fastening machine according to claim 1, characterized in that: The track is provided with a groove for accommodating the rivet member, and a notch is provided on one side of the end of the groove. The notch is located in the pushing direction, and the pushing member is directly facing the notch.

3. A material pushing device for a button-fastening machine according to claim 1, characterized in that: An elastic member is connected between the long arm and the short arm, and the extension direction of the elastic member corresponds to the pushing direction.

4. The material pushing device of the button-fastening machine according to claim 1, characterized in that: The long arm and the short arm are slidably matched through a sliding member; the short arm is provided with a receiving cavity whose length direction is parallel to the pushing direction; one end of the sliding member is restricted outside the receiving cavity, and the other end passes through the receiving cavity and is fixedly connected to the long arm.

5. A material pushing device for a button-fastening machine according to claim 4, characterized in that: An elastic member is arranged in the accommodating cavity, one end of the elastic member is connected to the inner wall surface of the accommodating cavity, and the other end is connected to the sliding member.

6. The material pushing device of a button-fastening machine according to claim 1, characterized in that: The limiting member is arranged on the pushing platform, and the limiting member is provided with a stopper protruding upward; and a first limiting portion for limiting the stopper is arranged on one side of the short arm.

7. A material pushing device for a button-fastening machine according to any one of claims 1 to 6, characterized in that: The bayonet includes an arc-shaped hook portion arranged on the short arm, and an arc-shaped recessed portion arranged on the long arm opposite to the arc-shaped hook portion; it also includes a hard limit, and the hard limit includes two opposite sides of the long arm and the short arm, which are respectively provided with a second limit portion and a third limit portion embedded along the pushing direction.

8. A material pushing device for a button-fastening machine according to any one of claims 1 to 6, characterized in that: A soft limit is provided between the long arm and the short arm to limit the aperture of the bayonet. The soft limit includes a clamping piece provided on the side of the long arm facing the short arm, the clamping piece is provided with a waist-shaped hole, and the long arm is connected to the long arm by a fixing screw passing through the waist-shaped hole; the clamping piece is limited against the short arm.

9. A material pushing device for a button-fastening machine according to any one of claims 1 to 6, characterized in that: Furthermore, a waist-shaped hole is provided on the limiting member, and the pushing platform is connected to the limiting member by a fixing screw passing through the waist-shaped hole.

10. The material pushing device of a button-fastening machine according to claim 1, characterized in that: The pushing device is a stroke cylinder.

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