Swing needle structure for button sewing machine

Abstract

The utility model relates to a swing needle structure for a button sewing machine, which belongs to the technical field of button sewing machines and comprises a rack, a driving source swing needle shaft, a swing needle component and a swing needle crank, the driving source is connected with the rack through a support, the swing needle shaft is rotatably arranged in the rack, one end of the swing needle shaft is in transmission connection with the driving source through a connecting rod component, and the other end of the swing needle shaft is in transmission connection with the connecting rod component. The other end of the swing needle shaft is movably connected with the swing needle assembly through the swing needle crank, the drive source controls the swing needle shaft to rotate back and forth through the connecting rod assembly, the swing needle shaft drives the swing needle crank to swing, and the swing needle crank drives the swing needle assembly to swing back and forth. The swing needle assembly is used for replacing the driving assembly for controlling the button clip to move left and right, and the button can be sewn on the clothes through the swing needle structure for the button sewing machine.

Description

Technical Field

[0001] This utility model belongs to the field of button attaching machine technology, and specifically refers to a pin-spinning structure used in button attaching machines. Background Technology

[0002] Currently, the sewing machine market is undergoing a reshuffle, and product differentiation can significantly improve product competitiveness. Button attaching machines are a type of machine with a large market share. Button attaching machines typically have a presser foot lifting mechanism and a thread cutting mechanism. Some models also have a twist clamp mechanism. The presser foot lifting and thread cutting mechanisms are usually driven by motors or electromagnets, while the forward, backward, left, and right movement of the twist clamp requires two additional motors to drive it. The overall structure is relatively complex and the overall size is large. In actual use, the twist clamp drive structure is adjusted to facilitate the sewing of buttons onto clothing.

[0003] For example, a utility model patent with application number 202322246525.0 published in a domestic database, entitled "A Drive Structure for a Clamping Device of a Button-Attaching Machine," includes a frame. A clamping device is slidably mounted on the frame in all directions. A drive motor is located at the rear end of the frame to control the forward and backward movement of the clamping device. A drive motor is located on one side of the rear end of the frame to control the left and right movement of the clamping device. A swing rod is mounted on the motor shaft of the second drive motor. One end of the swing rod is movably connected to a connecting rod. The connecting rod is movably connected to the clamping device. The second drive motor drives the swing rod to swing, and the swing rod drives the clamping device to move left and right through the connecting rod. In actual use, the installation and adjustment between the clamp and the drive motor is quite cumbersome. Utility Model Content

[0004] The purpose of this invention is to provide a simple and reasonable structure for a button sewing machine that can replace the control button clip's left and right movement drive component with a swing pin assembly, thus enabling the sewing of buttons onto clothing.

[0005] The purpose of this utility model is achieved as follows:

[0006] A pin-swinging structure for a button-attaching machine includes a frame, a drive source pin-swinging shaft, a pin-swinging assembly, and a pin-swinging crank. The drive source is connected to the frame via a bracket. The pin-swinging shaft is rotatably mounted within the frame. One end of the pin-swinging shaft is connected to the drive source via a connecting rod assembly, and the other end of the pin-swinging shaft is movably connected to the pin-swinging assembly via the pin-swinging crank. The drive source controls the pin-swinging shaft to rotate back and forth via the connecting rod assembly. The pin-swinging shaft drives the pin-swinging crank to swing, and the pin-swinging crank drives the pin-swinging assembly to swing back and forth.

[0007] In the above-mentioned swing needle structure for a button sewing machine, the connecting rod assembly includes a double-headed fisheye connecting rod, a crank one, and a crank two. The crank one is fixed to one end of the swing needle shaft and is located away from the swing needle assembly. The crank two is connected to the drive shaft of the drive source. The double-headed fisheye connecting rod is movably connected to the crank one and the crank two, respectively.

[0008] In the aforementioned oscillating pin structure for a button-attaching machine, the double-headed fisheye connecting rod includes two fisheye connectors and a screw. The two fisheye connectors are detachably connected to both ends of the screw, and the fisheye connectors and the screw are connected to each other by a threaded connection.

[0009] In the above-mentioned pin structure for a button sewing machine, the pin crank is sleeved on the end of the pin shaft, and the pin crank is provided with a receiving groove, and the pin assembly is provided with a sliding column that cooperates with the receiving groove.

[0010] In the aforementioned pin structure for a button-attaching machine, a wear-resistant block is sleeved on the outer side of the sliding column.

[0011] In the aforementioned pin-mounted structure for a button-attaching machine, the bracket is an L-shaped structure.

[0012] In the aforementioned pin-spinning structure for a button-attaching machine, two adjustment slots are provided on the side of the bracket connected to the machine frame.

[0013] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0014] This invention replaces the traditional torsion clamp's left-right movement drive structure with a swivel pin assembly, which makes it easier to adjust the left-right swing distance of the swivel pin. In addition, the traditional torsion clamp only needs a forward-backward movement drive structure. Attached Figure Description

[0015] Figure 1 This is a simplified structural diagram of the present invention.

[0016] Figure 2 This is one of the schematic diagrams of the internal structure of this utility model.

[0017] Figure 3 This is the second schematic diagram of the internal structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the oscillating crank of this utility model.

[0019] 1-Frame; 2-Drive source; 3-Swivel shaft; 4-Swivel assembly; 5-Swivel crank; 6-Bracket; 7-Connecting rod assembly; 41-Sliding column; 42-Wear block; 51-Receiving groove; 61-Adjusting groove; 71-Double-headed fisheye connecting rod; 72-Crank one; 73-Crank two; 711-Fisheye connector; 712-Screw. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] like Figures 1-4 A pin-swinging structure for a button-attaching machine includes a frame 1, a drive source 2, a pin-swinging shaft 3, a pin-swinging assembly 4, and a pin-swinging crank 5. The drive source 2 is connected to the frame 1 via a bracket 6. The pin-swinging shaft 3 is rotatably mounted within the frame 1. One end of the pin-swinging shaft 3 is connected to the drive source 2 via a connecting rod assembly 7, and the other end of the pin-swinging shaft 3 is movably connected to the pin-swinging assembly 4 via the pin-swinging crank 5. The drive source 2 controls the pin-swinging shaft 3 to rotate back and forth via the connecting rod assembly 7. The pin-swinging shaft 3 drives the pin-swinging crank 5 to swing, and the pin-swinging crank 5 drives the pin-swinging assembly 4 to swing back and forth. Specifically, this invention replaces the traditional torsion clamp's left-right movement drive structure with a pin-swinging assembly, which facilitates adjustment of the left-right swing distance of the pin-swinging. Furthermore, the traditional torsion clamp only requires a forward-backward movement drive structure, making the overall structure relatively simple.

[0022] In the aforementioned pin-spinning structure for a button-attaching machine, the connecting rod assembly 7 includes a double-headed fisheye connecting rod 71, a first crank 72, and a second crank 73. The first crank 72 is fixed to one end of the pin-spinning shaft 3 and is positioned away from the pin-spinning assembly 4. The second crank 73 is connected to the drive shaft of the drive source 2. The double-headed fisheye connecting rod 71 is movably connected to the first crank 72 and the second crank 73, respectively. The double-headed fisheye connecting rod 71 includes two fisheye connectors 711 and a screw 712. The two fisheye connectors 711 are detachably connected to both ends of the screw 712, and the fisheye connectors 711 and the screw 712 are connected to each other by a threaded connection. Specifically, this facilitates adjustment of the length of the double-headed fisheye connecting rod.

[0023] In the above-mentioned pin structure for a button sewing machine, the pin crank 5 is sleeved on the end of the pin shaft 3, and the pin crank 5 is provided with a receiving groove 51. The pin assembly 4 is provided with a sliding post 41 that cooperates with the receiving groove 51. A wear-resistant block 42 is sleeved on the outside of the sliding post 41. Specifically, this is to extend the service life of the pin assembly and the pin crank. If the wear-resistant block wears down, resulting in a large internal gap, then only the wear-resistant block needs to be replaced. The wear-resistant block can be made of copper.

[0024] In the above-mentioned pin-swivel structure for a button-attaching machine, the bracket 6 is an L-shaped structure. Two adjustment slots 61 are provided on the side of the bracket 6 that connects to the frame 1. Specifically, the bracket is an L-shaped connecting plate, the drive source is a servo motor, and the drive source is fixed on the bracket. The bracket is fixed on the frame through the adjustment slots and screws. The position of the drive source on the frame can be adjusted through the adjustment slots.

[0025] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A swivel pin structure for a button sewing machine, characterized in that: The device includes a frame (1), a drive source (2), a pendulum shaft (3), a pendulum assembly (4), and a pendulum crank (5). The drive source (2) is connected to the frame (1) via a bracket (6). The pendulum shaft (3) is rotatably mounted inside the frame (1). One end of the pendulum shaft (3) is connected to the drive source (2) via a connecting rod assembly (7). The other end of the pendulum shaft (3) is movably connected to the pendulum assembly (4) via the pendulum crank (5). The drive source (2) controls the pendulum shaft (3) to rotate back and forth via the connecting rod assembly (7). The pendulum shaft (3) drives the pendulum crank (5) to swing, and the pendulum crank (5) drives the pendulum assembly (4) to swing back and forth.

2. The oscillating pin structure for a button sewing machine according to claim 1, characterized in that: The connecting rod assembly (7) includes a double-headed fisheye connecting rod (71), crank one (72) and crank two (73). Crank one (72) is fixed to one end of the pendulum shaft (3) and is located away from the pendulum assembly (4). Crank two (73) is connected to the drive shaft of the drive source (2). The double-headed fisheye connecting rod (71) is movably connected to crank one (72) and crank two (73) respectively.

3. The oscillating pin structure for a button sewing machine according to claim 2, characterized in that: The double-headed fisheye connecting rod (71) includes two fisheye connectors (711) and a screw (712). The two fisheye connectors (711) are detachably connected to both ends of the screw (712), and the fisheye connectors (711) and the screw (712) are connected to each other by a threaded connection.

4. The oscillating pin structure for a button sewing machine according to claim 1, 2, or 3, characterized in that: The pendulum crank (5) is sleeved on the end of the pendulum shaft (3), and the pendulum crank (5) is provided with a receiving groove (51). The pendulum assembly (4) is provided with a sliding column (41) that cooperates with the receiving groove (51).

5. The oscillating pin structure for a button sewing machine according to claim 4, characterized in that: Wear-resistant blocks (42) are fitted on the outer side of the sliding column (41).

6. The oscillating pin structure for a button sewing machine according to claim 4, characterized in that: The support (6) has an L-shaped structure.

7. The oscillating pin structure for a button sewing machine according to claim 6, characterized in that: Two adjustment slots (61) are provided on the side of the bracket (6) that is connected to the frame (1).

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