A riveting machine

Abstract

The application discloses a riveting machine, which has the technical scheme as follows: a machine base is provided with a material pushing mechanism, the material pushing mechanism comprises a material pushing table, a material pushing rod sliding forward and backward is arranged on the material pushing table, the machine base is provided with a feeding mechanism, the feeding mechanism comprises a first feeding track for conveying a lower buckle and a second feeding track for conveying a gasket arranged on the side of the material pushing table, the side of the material pushing rod is provided with a front material receiving gap A and a rear material receiving gap B arranged in front of and behind the material pushing direction respectively, and the material receiving gap A and the material receiving gap B are connected to the discharge positions of the first feeding track and the second feeding track respectively. The application has the advantages of simple and reliable feeding and material pushing structure and small occupied volume.

Description

Technical Field

[0001] This invention relates to the field of button production equipment technology, and more specifically to a riveting machine. Background Technology

[0002] Riveting machines, also known as button attaching machines, are mainly used for riveting decorative buttons on clothing, shoes, hats, and bags. With the development of automation, automatic riveting (button attaching) machines have emerged in recent years. Currently, the feeding device for the lower button of automatic riveting machines on the market is not yet mature. Generally speaking, when installing the lower button, a shim needs to be installed. The shim is stacked on the lower button, and then the upper button is used for stamping and riveting.

[0003] In the prior art, for the step of stacking the gaskets on the bottom buckle, there is an automatic gasket feeding and discharging mechanism for the bottom buckle of a button-attaching machine, as disclosed in announcement number CN216738793U. This mechanism uses a double-layer track to allow the gaskets to fall naturally onto the bottom buckle by gravity. However, this method has low reliability during production. The conveying speed of the bottom buckle and the conveying speed of the gaskets are different, and many gaskets cannot be accurately stacked on the bottom buckle. The output of finished products is low, and with continuous conveying, the stacked gaskets in the finished products can easily fall off the bottom buckle, resulting in unstable production quality. This method needs to be improved.

[0004] Meanwhile, existing technologies also include, for example, an automatic conveying device for plastic gaskets disclosed in CN216971214U. This device uses a gripping component similar to a robotic arm to grasp the gaskets and then stack them on a lower shelf. This method requires high precision in controlling the horizontal and vertical movement of the gripping component. The movement cannot deviate, otherwise the gaskets may not be able to be placed. In long-term operation, it is difficult to maintain the motion precision, and the equipment needs frequent maintenance to ensure high motion precision. Furthermore, the space occupied by the horizontal and vertical movement of the gripping component is also relatively large, which also needs to be improved.

[0005] Therefore, in view of the problems existing in the prior art, this application provides a riveting machine with a simple and reliable structure and a small footprint. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the present invention provides a riveting machine with the advantages of simple and reliable feeding and pushing structure and small size.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a riveting machine, comprising a base, wherein a pushing mechanism is provided on the base, the pushing mechanism includes a pushing platform, and a pushing rod that slides back and forth on the pushing platform, characterized in that: the base is provided with a feeding mechanism, the feeding mechanism includes a first feeding track for conveying buckles and a second feeding track for conveying pads located on the side of the pushing platform, the pushing rod is provided with receiving notches A and B arranged one in front of the other relative to the pushing direction, the receiving notches A and B being respectively connected to the discharge positions of the first feeding track and the second feeding track; the base is provided with a mold seat, and when the receiving notches A and B move to the top of the mold seat, the buckles and pads inside can fall into the mold seat in sequence to complete stacking.

[0008] The present invention is further configured such that one side and the bottom surface of the receiving notch A and the receiving notch B are both open, and the opening sizes of the receiving notch A and the receiving notch B are respectively adapted to the size of the buckle and the gasket.

[0009] The present invention is further configured such that the first feeding track, the second feeding track, and the corresponding receiving notch A and receiving notch B are located on the same side or opposite side of the push rod.

[0010] The present invention is further configured such that: the push rod is provided with a limiting part at the receiving notch A and / or receiving notch B, and the limiting part restricts the workpiece from coming out of the receiving notch when pushing the material.

[0011] The present invention is further configured such that: the sides of the pusher platform and the mold base are provided with raised blocking steps, the blocking steps being used to block the workpiece in the receiving notch A and / or receiving notch B when the pusher pushes the material.

[0012] The present invention is further configured such that: the limiting part is configured as an inclined structure, the inclined structure is located on the side wall of the pushing side, and the inclined surface is inclined outward along the pushing direction.

[0013] The present invention is further configured such that: a driving mechanism is provided on the machine base, the driving mechanism drives the pusher rod to push the material towards the mold base, the driving device includes a transmission mechanism, a slider and a track, the transmission mechanism is connected to the slider and drives the slider to slide in the track, and the pusher rod is fixedly connected to the slider.

[0014] The present invention is further configured such that the transmission mechanism is a servo motor and lead screw transmission mechanism or a cylinder transmission mechanism.

[0015] In summary, the present invention has the following beneficial effects:

[0016] Compared to existing technologies, this invention features receiving notches A and B on the push rod. Workpieces on the first and second feeding tracks enter notches A and B, respectively; the undercut is placed in notch A, and the spacer in notch B. The push rod, driven by a drive device, moves towards the mold base, first dropping the undercut from notch A into the mold base. Continuing forward, it then drops the spacer from notch B onto the undercut in the mold base, completing the stacking of the spacers. This invention requires only the action of a single push rod to complete the stacking process, resulting in a simple structure, small footprint, and lower precision requirements for controlling the push rod, ensuring accurate stacking even during extended operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the riveting machine when the first and second feeding tracks are on the same side in this embodiment;

[0018] Figure 2 This is a schematic diagram of the overall structure of the riveting machine when the first and second feeding tracks are on opposite sides in this embodiment;

[0019] Figure 3 This is a three-dimensional structural diagram of the feeding device in Embodiment 1;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the feeding device in this embodiment.

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the feeding device in Embodiment 2;

[0022] Figure 6 This is an enlarged structural diagram of the limiting part of the inclined surface structure in this embodiment;

[0023] Figure 7 This is an enlarged structural diagram of the limiting part of the stop bar structure in this embodiment;

[0024] Figure 8 This is a schematic diagram of the first workstation status in this embodiment;

[0025] Figure 9 This is a schematic diagram of the second workstation status in this embodiment.

[0026] Reference numerals in the attached drawings: 1. Pushing mechanism; 2. Feeding mechanism; 201. First feeding track; 202. Second feeding track; 3. Push rod; 301. Receiving notch A; 302. Receiving notch B; 4. Drive mechanism; 401. Transmission mechanism; 402. Slider; 403. Track; 5. Mold base; 6. Stopping step; 7. Riveting machine; 8. Vibrating feeder; 9. Pushing table; 10. Machine base; 11. Lower buckle; 12. Shim; 13. Limiting part. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] This embodiment discloses a riveting machine, such as Figure 1-7 As shown, the device includes a base 10, on which a pushing mechanism 1 is provided. The pushing mechanism 1 includes a pushing platform 9, on which a sliding pushing rod 3 is provided. The pushing rod 3 has receiving notches A301 and B302 arranged one in front of the other in the pushing direction. The base 10 is provided with a feeding mechanism 2, which includes a first feeding track 201 and a second feeding track 202 located on the side of the pushing platform 9. The receiving notches A301 and B302 correspond to the discharge positions of the first feeding track 201 and the second feeding track 202, respectively. Furthermore, the base 10 is provided with a drive mechanism. The drive mechanism 4 drives the push rod 3 to push materials towards the mold base 5, causing the workpieces in receiving notches A and B to fall into the mold base 5 sequentially. Through this structure, the lower clip 11 and the pad 12 enter the receiving notches A301 and B302 respectively via the first feeding track 201 and the second feeding track 202. The push rod 3 moves, pushing the lower clip in receiving notch A301 into the mold base 5 first. Then, the push rod 3 continues to push forward, causing the pad in receiving notch B302 to fall onto the lower clip of the mold base 5, thus completing the stacking process. With the reciprocating movement of the push rod 3, the lower clips are continuously pushed into the mold base, completing the stacking of the pads. This invention only requires the drive device 4 to drive the movement of one push rod 3 to achieve the pushing of the lower clips and the stacking of the pads. The structure is simple and reliable, occupies little space, requires low motion control precision, and can stably complete the pushing and stacking work even after long-term operation.

[0029] Furthermore, the first feeding track 201 and the second feeding track 202, along with their corresponding receiving notches A and B, are positioned on the same side or opposite sides of the push rod 3. (Refer to...) Figure 1-2 In this embodiment, the first and second feeding tracks in the feeding mechanism can be set on the same side or on opposite sides. The positions of the first and second feeding tracks can be adjusted according to the actual installation space and feeding requirements of the entire riveting machine.

[0030] Furthermore, the push rod is provided with a limiting part 13 on the receiving side of the receiving notch A and / or receiving notch B. The limiting part 13 can prevent the workpiece from falling out of the receiving notch during pushing. The structure of the limiting part 13 has various options, which can be referenced. Figure 6-7 , Figure 6The preferred inclined structure is located on the side wall of the pushing side, and the inclined structure is set outward along the pushing direction. With the inclined structure, when the push rod pushes the material forward, the workpiece will abut against the inclined surface, so that the workpiece is pushed forward and also has an inward tendency, thereby restricting the workpiece from coming out from the receiving notch side. Figure 7 A stop bar is provided as a limiting part 13 in the receiving gap. The stop bar is hinged on the side wall of the receiving gap, and a torsion spring is provided at the hinge. The torsion spring drives the stop bar to deflect into the gap. When the workpiece enters, it can naturally push the stop bar open and enter the receiving gap. After the workpiece enters the receiving gap, the stop bar is reset by the torsion spring. The end of the stop bar abuts the workpiece to prevent it from falling out.

[0031] Furthermore, the sides of the pusher table 9 and the mold base 5 are provided with raised blocking steps 6, which correspond to the positions of the receiving notch A and / or receiving notch B. The blocking steps 6 are used to block the internal workpiece when the pusher rod 3 pushes the material.

[0032] Based on the above structure, the present invention has several embodiments:

[0033] Example 1:

[0034] For reference Figure 3-4 When no limiting part is provided in receiving notch A and receiving notch B, in order to prevent the workpiece from coming out from the side of receiving notch A and receiving notch B when the push rod 3 pushes the material, a raised blocking step 6 is provided on the side of the push table 9 and the mold base 5. The blocking step 6 corresponds to the position of the receiving notch. The blocking step 6 blocks the workpiece in the receiving notch when the push rod 3 pushes the material.

[0035] Example 2:

[0036] When a limiting part is provided in either receiving notch A301 or receiving notch B302 (the following example uses receiving notch A without limiting part 13 and receiving notch B with limiting part as an example), please refer to... Figure 5 In order to prevent the workpiece from coming out during the feeding process, the receiving notch A still needs to be provided with a raised stop step 6 on the side of the feeding table 9 and the mold base 5; however, since the receiving notch B is provided with a limiting part, the workpiece will not come out of the receiving notch B due to the effect of the limiting part 13 when the receiving notch B is feeding, so the stop step 6 does not need to be provided on one side of the receiving notch B.

[0037] Example 3:

[0038] When both receiving notch A and receiving notch B are provided with limiting parts 13, since the limiting parts 13 can prevent the workpiece from coming out, the pusher table 9 and the mold base 5 do not need to be provided with blocking steps 6 on both sides.

[0039] It should be clarified that, in the above embodiments, even if the receiving notch A and receiving notch B are provided with limiting parts 13, the material blocking step 6 can also be provided, which can serve as a further safety measure to prevent the workpiece from falling out.

[0040] Meanwhile, in the above embodiments, when the receiving notch has a sloped structure for the limiting part, the corresponding feeding track can be tilted so that the workpiece in the track can better enter the receiving notch along the sloped direction.

[0041] Furthermore, the push rod 3 has a first station and a second station;

[0042] At the first station, the receiving notch A301 is located above the mold base 5 so that the workpiece in the receiving notch A falls into the mold base 5;

[0043] At the second station, the receiving notch B302 is located above the mold base 5 so that the workpiece in the receiving notch B falls into the mold base 5.

[0044] The push rod pauses briefly at the first and second stations.

[0045] With the above structure, when moving to the first station, the push rod 3 pauses briefly to ensure that the lower clip in the receiving notch A falls accurately into the mold seat; similarly, when moving to the second station, the push rod 3 also pauses briefly to ensure that the pad is accurately stacked on the lower clip.

[0046] Furthermore, the driving device 4 includes a transmission mechanism 401, a slider 402, and a track 403. The transmission mechanism 401 is connected to the slider 402 and drives the slider 402 to slide within the track 403. The push rod 3 is fixedly connected to the slider 402. By driving the slider 402 to slide back and forth through the transmission mechanism, the push rod 3 can be driven to push material back and forth.

[0047] Furthermore, the transmission mechanism is selected from servo motor and lead screw transmission mechanism or cylinder transmission mechanism. Among them, the servo motor and lead screw transmission mechanism is preferably a transmission mechanism composed of servo motor and roller lead screw, which can more accurately control the displacement of push rod 3 and is convenient to start and stop, making it easy to make short stops at the first and second work positions; the cylinder transmission mechanism is preferably a magnetic switch type cylinder, which can detect the movement stroke of the piston through magnetic switch, and with the cooperation of three-way solenoid valve, it can realize short stops at the first and second work positions.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. A riveting machine comprising a machine base (10), a pushing mechanism (1) is arranged on the machine base (10), the pushing mechanism (1) comprises a pushing table (9), a pushing rod (3) is arranged on the pushing table (9) and slides forward and backward, characterized in that: The machine base (10) is provided with a feeding mechanism (2), the feeding mechanism (2) includes a first feeding track (201) for conveying the lower buckle and a second feeding track (202) for conveying the gasket on the side of the pushing table (9), the pushing rod (3) is provided with a front and rear pushing direction relative to the material receiving gap A (301) and the material receiving gap B (302), the material receiving gap A (301) and the material receiving gap B (302) are connected to the discharge position of the first feeding track (201) and the second feeding track (202) respectively; the machine base (10) is provided with a mold base (5), by moving the pushing rod (3), when the material receiving gap A and the material receiving gap B move above the mold base (5), the lower buckle in the material receiving gap A (301) falls into the mold base (5) first, then the pushing rod (3) continues to push forward, so that the gasket in the material receiving gap B (302) falls on the lower buckle of the mold base (5), and the lower buckle and the gasket in it can fall into the mold base in turn to complete the stacking.

2. A riveter according to claim 1, wherein: The side and bottom surface of the material receiving gap A and the material receiving gap B are both provided with openings, and the opening size of the material receiving gap A and the material receiving gap B is matched with the size of the lower buckle and the gasket respectively.

3. A riveter according to claim 1, wherein: The first feeding track (201), the second feeding track (202) and the corresponding material receiving gap A and the material receiving gap B are provided on the same side or different sides of the pushing rod (3).

4. A riveter according to claim 1, wherein: The pushing rod (3) is provided with a limiting part (13) at the material receiving gap A and / or the material receiving gap B, the limiting part (13) limits the workpiece from falling out of the material receiving gap when pushing.

5. A riveting machine as claimed in claim 1 or 4, wherein: The side surface of the pushing table (9) and the mold base (5) is provided with a raised material blocking step (6), which is used to block the workpiece in the material receiving gap A and / or the material receiving gap B when the pushing rod (3) pushes the material.

6. A riveter according to claim 4, wherein: The limiting part (13) is provided as a slope structure, the slope structure is located on the side wall on the pushing side, and the slope is inclined outward along the pushing direction.

7. A riveter according to claim 1 wherein: The machine base (10) is provided with a driving mechanism (4), the driving mechanism (4) drives the pushing rod (3) to push the material to the mold base (5), the driving mechanism (4) includes a transmission mechanism (401), a sliding block (402) and a track (403), the transmission mechanism (401) is connected with the sliding block (402) and drives the sliding block (402) to slide in the track (403), and the pushing rod (3) is fixedly connected on the sliding block (402).

8. A riveter according to claim 7, wherein: The transmission mechanism selects the transmission mechanism of servo motor and screw or air cylinder transmission mechanism.

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