Buckle clamping device in sewing machine or button sewing machine and sewing machine or button sewing machine

Abstract

The utility model provides a buckle clamping device in a sewing machine or a button sewing machine and the sewing machine or the button sewing machine, and belongs to the technical field of sewing machines. The button clamping device solves the technical problem of how to improve the accuracy of clamping buttons on the button clamping device. The button clamping device in the sewing machine or the button sewing machine comprises a pressing plate, a power source, a first clamping arm and a second clamping arm, the first clamping arm and the second clamping arm are oppositely arranged and both connected to the pressing plate in a sliding mode, and the button clamping device is characterized in that the power source can drive the first clamping arm to move on the pressing plate, and a swing assembly is connected between the first clamping arm and the second clamping arm; the swing assembly can drive the second clamping arm to move in the direction opposite to the first clamping arm through movement of the first clamping arm, the first clamping arm and the second clamping arm can move in the same direction or away from each other, and movement between the first clamping arm and the second clamping arm is translational motion. According to the button clamping device, the first clamping arm and the second clamping arm can be directly controlled to move through the swing assembly, the clamping force on a button is increased, the distance of transmission force is short, and the button clamping precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing machines, and relates to a button clamping device in a sewing machine or a button sewing machine and a sewing machine or a button sewing machine. Background Art

[0002] A sewing machine or a button sewing machine is a special automatic sewing machine type. In the prior art, a button sewing machine or a sewing machine is generally used to sew buttons, and is used to sew buttons on clothes. When sewing buttons, it is necessary to position the buttons, and the function of the button clamping device is to position the buttons at the button sewing position.

[0003] The patent with the application number 202121556769.3 discloses a button clamping device in a button sewing machine, including a clamping arm mechanism and a bottom plate. A linear driving source is detachably installed on the bottom plate, and the output end of the linear driving source is matched with the clamping arm mechanism so that the linear driving source can control the clamping arm mechanism to clamp or loosen the button. A rotary driving source is also installed on the bottom plate, and a push rod is fixed to the output end of the rotary driving source. The output end of the push rod can touch or push the button. Under the action of the linear driving source, the clamping arm mechanism clamps the button.

[0004] The button clamping device in the above-mentioned document can clamp the button and correct the button, but there are still deficiencies. In the above-mentioned button clamping device, the clamping arm mechanisms are located on the same guide rail, and the movement of the clamping arm mechanisms is not stable enough, resulting in low precision of the button clamping device for clamping the button. Summary of the Invention

[0005] Aiming at the above problems existing in the prior art, the utility model provides a button clamping device in a sewing machine or a button sewing machine and a sewing machine or a button sewing machine. The technical problem to be solved by the utility model is how to improve the precision of clamping the button on the button clamping device.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A button clamping device in a sewing machine or a button sewing machine, including a pressing plate, a power source, a clamping arm one and a clamping arm two. The clamping arm one and the clamping arm two are arranged oppositely and both are slidably connected to the pressing plate. It is characterized in that the power source can drive the clamping arm one to move on the pressing plate. A swinging component is connected between the clamping arm one and the clamping arm two. The swinging component can drive the clamping arm two to move in the direction opposite to that of the clamping arm one through the movement of the clamping arm one. The clamping arm one and the clamping arm two can move towards or away from each other, and the movement between the clamping arm one and the clamping arm two is a translational movement.

[0008] Its working principle is as follows: The first clamping arm and the second clamping arm are arranged opposite to each other, so that there is enough clearance between them to clamp buttons of different sizes. A swing assembly is connected between the first clamping arm and the second clamping arm. The swing assembly can drive the movement of the first clamping arm through a power source, thereby driving the second clamping arm to move in the opposite direction to the first clamping arm. The swing assembly can directly control the movement of the first clamping arm and the second clamping arm, increasing the clamping force on the button and shortening the transmission distance of the driving force, and improving the accuracy of clamping the button. The first clamping arm and the second clamping arm can translate, increasing the stability of the movement and improving the accuracy of the first clamping arm and the second clamping arm in clamping the button.

[0009] In the button clamping device of a sewing machine or a button sewing machine as described above, the swing assembly includes a swing arm. The middle of the swing arm is hinged on the pressing plate. The two ends of the swing arm respectively have a first connection end and a second connection end. The first connection end is connected to the inner end of the first clamping arm, and the second connection end is connected to the inner end of the second clamping arm. The swing arm can swing relative to the pressing plate.

[0010] The first connection end and the second connection end are located at the two ends of the swing arm, increasing the stability of the swing arm. The first connection end is connected to the inner end of the first clamping arm, and the second connection end is connected to the inner end of the second clamping arm, improving the stability of the connection between the swing arm and the first clamping arm and the second clamping arm respectively. The swing arm can swing relative to the pressing plate, thereby driving the first clamping arm and the second clamping arm to translate towards or away from each other, improving the accuracy of the first clamping arm and the second clamping arm in clamping the button.

[0011] In the button clamping device of a sewing machine or a button sewing machine as described above, the first clamping arm and the second clamping arm respectively have a first through groove and a second through groove. A first bearing member and a second bearing member are respectively connected to the first connection end and the second connection end of the swing arm. The first bearing member on the first connection end is located on the first through groove, and the second bearing member on the second connection end is located on the second through groove. The first bearing member and the second bearing member can respectively roll or slide in the first through groove and the second through groove.

[0012] The first through groove and the second through groove have a guiding effect. A first bearing member and a second bearing member are respectively connected to the first connection end and the second connection end of the swing arm. The first bearing member on the first connection end is located on the first through groove. When the first clamping arm moves, it can drive the first bearing member on the first connection end to roll or slide in the first through groove, thereby driving the second bearing member on the second connection end to roll or slide in the second through groove, causing the second clamping arm to also move. Through the rolling or sliding of the first bearing member and the second bearing member, the efficiency of the relative movement of the first clamping arm and the second clamping arm is improved, and they are respectively located in the first through groove and the second through groove, increasing the stability.

[0013] In the clip device of a sewing machine or button sewing machine as described above, the swing assembly further includes a hinge shaft located at the middle end of the swing arm. The hinge shaft is hinged on the pressure plate. An adjusting block is connected between the first clamping arm and the second clamping arm. The adjusting block is fixedly connected to the pressure plate. The hinge shaft passes through the adjusting block and is connected to the pressure plate. The adjusting block has a plurality of through holes through which the hinge shaft can pass.

[0014] The hinge shaft located at the middle end plays a role in transmission. The hinge shaft is hinged on the pressure plate to make the swing arm swing. An adjusting block is connected between the first clamping arm and the second clamping arm. The adjusting block is fixed on the pressure plate. The hinge shaft passes through the adjusting block, increasing the connection stability between the hinge shaft and the pressure plate. The adjusting block has a plurality of through holes, which can be adjusted according to the distance that the first clamping arm and the second clamping arm need to move, improving the accuracy of the clip device for clamping buttons.

[0015] In the clip device of a sewing machine or button sewing machine as described above, a connecting shaft is provided on the first bearing member and the second bearing member. The first bearing member and the second bearing member are connected to the swing arm through the connecting shaft. When the first bearing member on the first clamping arm rolls or slides, the swing arm is driven to swing through the connecting shaft, so that the second bearing member on the second clamping arm rolls or slides.

[0016] The connecting shaft can connect the swing arm with the first bearing member and the second bearing member, and the connecting shaft increases the connection stability between the two. When the first bearing member on the first clamping arm rolls or slides, the swing arm swings through the connecting shaft. The second bearing member on the second clamping arm makes the bearing member roll or slide through the connecting shaft connected to the swing arm, driving the second clamping arm to move.

[0017] In the clip device of a sewing machine or button sewing machine as described above, a first guide groove and a second guide groove are provided on the pressure plate. The first guide groove and the second guide groove are arranged in parallel and have a gap. A third bearing member capable of moving the first clamping arm is provided between the first clamping arm and the first guide groove. A fourth bearing member capable of moving the second clamping arm is provided between the second clamping arm and the second guide groove; or guide rails are respectively provided on the first guide groove and the second guide groove. Sliders are connected to the bottoms of the first clamping arm and the second clamping arm, and the sliders can slide on the guide rails.

[0018] The first guiding groove and the second guiding groove are arranged in parallel, which makes the transmission efficiency of the two high, and there is a gap between them, increasing the stability of the connection between the two and the first clamping arm and the second clamping arm. The gap between the two enables the first clamping arm and the second clamping arm to slide respectively, avoiding jamming between the first clamping arm and the second clamping arm, and increasing the stability of the transmission between the two. The first guiding groove is connected to the first clamping arm through the third bearing part, and the second guiding groove is connected to the second clamping arm through the fourth bearing part. The third bearing part and the fourth bearing part can roll or slide in the first guiding groove and the second guiding groove respectively, improving the accuracy of the relative movement of the first clamping arm and the second clamping arm; guide rails are respectively arranged on the first guiding groove and the second guiding groove, and the slider can slide on the guide rail, improving the efficiency of the first clamping arm and the second clamping arm moving in the first guiding groove and the second guiding groove respectively.

[0019] In the clamping device in the above-mentioned sewing machine or button sewing machine, the first guiding groove and the second guiding groove are both arranged in parallel with the adjusting block, and the side walls of the first clamping arm and the second clamping arm can both be slidably connected to the adjusting block.

[0020] The first guiding groove and the second guiding groove can both be parallel to the adjusting block, making the transmission of the first clamping arm and the second clamping arm stable. The side walls of the first clamping arm and the second clamping arm can both be slidably connected to the adjusting block, increasing the transmission stability of the first clamping arm and the second clamping arm.

[0021] In the clamping device in the above-mentioned sewing machine or button sewing machine, a fifth bearing part is further arranged on the first guiding groove, the third bearing part and the fifth bearing part are located on the same straight line, a sixth bearing part is further arranged on the second guiding groove, and the two fourth bearing parts and the sixth bearing part are respectively located at both ends of the second clamping arm.

[0022] The third bearing part and the fifth bearing part on the first guiding groove are respectively located on the same straight line, increasing the connection stability between the first clamping arm and the first guiding groove and improving the moving efficiency of the bearing part. The fourth bearing part and the sixth bearing part on the second guiding groove are respectively located at both ends of the second clamping arm, increasing the stability of the movement of the second clamping arm.

[0023] In the clamping device in the above-mentioned sewing machine or button sewing machine, there are balls between the side wall of the guide rail and the two side walls of the slider, which can facilitate the sliding of the slider on the guide rail. The two ends of the slider are respectively provided with a first protruding part, and the first protruding part can make the balls located between the slider and the guide rail.

[0024] The balls are located between the side wall of the slider and the side wall of the guide rail, improving the sliding efficiency of the slider. The two ends of the slider are respectively provided with a first protruding part, and the first protruding part is located between the slider and the guide rail, which can prevent the balls from falling off when rolling, increasing the connection stability.

[0025] In the button clamping device of a sewing machine or button sewing machine as described above, a limiting shaft is connected to the bottom of the first clamping arm, a first limiting groove is provided on the pressing plate, the limiting shaft passes through the limiting groove and can move within the first limiting groove, a limiting plate is hinged to the pressing plate, a limiting handle is provided on the limiting plate, a second limiting groove is provided on the limiting plate, and a positioning shaft is provided on the pressing plate, and the positioning shaft passes through the second limiting groove and is fixedly connected to the second limiting groove.

[0026] A limiting plate is hinged to the pressing plate, a second limiting groove is provided on the limiting plate, the second limiting groove can move around the positioning shaft to adjust the angle of the limiting plate, the limiting handle can adjust the moving angle, and the positioning shaft is used to fix the angle of movement of the limiting plate. Through the fixation of the positioning shaft and the limiting plate, the limiting shaft can move within the first limiting groove, with one end abutted within the first limiting groove and the other end abutted against the inner end of the limiting plate, so as to adjust the moving distance of the first clamping arm and the second clamping arm, increasing the accuracy of button clamping.

[0027] In the button clamping device of a sewing machine or button sewing machine as described above, an upper cover plate is hinged above the first clamping arm and the second clamping arm, strip-shaped grooves are respectively provided on the first clamping arm and the second clamping arm, the strip-shaped groove on the first clamping arm is in a curved strip shape, and the strip-shaped groove on the second clamping arm is located above the connecting shaft.

[0028] Lubricating oil can be placed in the strip-shaped groove, increasing the lubricating effect, reducing the friction between the upper cover plate and the first clamping arm and the second clamping arm, and facilitating the sliding of the first clamping arm and the second clamping arm within the upper cover plate.

[0029] In the button clamping device of a sewing machine or button sewing machine as described above, a first claw and a second claw are respectively connected to the outer ends of the first clamping arm and the second clamping arm, the first claw and the second claw are arranged oppositely, second protruding parts are respectively provided on the top end surface and the bottom end surface of the first claw and the second claw, the second protruding parts are located inside the first claw and the second claw, and the included angle area of the second protruding parts is larger than the included angle area of the first claw and the second claw.

[0030] The first claw and the second claw are arranged oppositely, increasing the stability of button clamping. Second protruding parts are provided inside the included angle of the first claw and the second claw. After the button is clamped by the first claw and the second claw, the included angle area of the second protruding parts is larger than the area of the first claw and the second claw, making it difficult for the button to fall off and improving the stability of button clamping.

[0031] Another object of the present invention is to provide a sewing machine or button sewing machine, and the sewing machine or button sewing machine includes any one of the above button clamping devices.

[0032] Compared with the prior art, the advantages of the present invention are as follows:

[0033] 1. The swinging component of this button clip device can drive the movement of the first clamping arm through a power source, thereby driving the second clamping arm to move in the opposite direction to the first clamping arm. The swinging component can directly control the movement of the first and second clamping arms, increasing the clamping force on the button and shortening the transmission distance of the driving force, improving the accuracy of clamping the button. The first and second clamping arms can move translationally, increasing the stability of the movement and improving the accuracy of the first and second clamping arms in clamping the button.

[0034] 2. The swing arm of this button clip device can swing relative to the pressure plate, thereby driving the first and second clamping arms to move translationally towards or away from each other, improving the accuracy of the first and second clamping arms in clamping the button.

[0035] 3. The hinge shaft of this button clip device is located in the middle to play a role in transmission. The hinge shaft is hinged on the pressure plate to make the swing arm swing. There is an adjustment block connected between the first and second clamping arms. The adjustment block is fixed on the pressure plate, and the hinge shaft passes through the adjustment block, increasing the connection stability between the hinge shaft and the pressure plate. Description of the Drawings

[0036] Figure 1 is a schematic structural diagram of the button clip device in this sewing machine or button sewing machine.

[0037] Figure 2 is a schematic structural diagram of the button clip device in this sewing machine or button sewing machine.

[0038] Figure 3 is a schematic partial structural diagram of the button clip device in this sewing machine or button sewing machine.

[0039] Figure 4 is a schematic bottom structural diagram of the button clip device in this sewing machine or button sewing machine.

[0040] Figure 5 is a schematic structural diagram of the button clip device in this sewing machine or button sewing machine.

[0041] Figure 6 is a schematic partial structural diagram of the button clip device in this sewing machine or button sewing machine.

[0042] Figure 7 is a schematic structural diagram of Embodiment 2.

[0043] In the figure, 1 is a pressing plate; 2 is a power source; 3 is a first clamping arm; 4 is a second clamping arm; 5 is a swinging assembly; 6 is a swing arm; 7 is a first connection end; 8 is a second connection end; 9 is a first through groove; 10 is a second through groove; 11 is a first bearing part; 12 is a connecting shaft; 13 is a hinge shaft; 14 is an adjusting block; 15 is a through hole; 16 is a first guiding groove; 17 is a second guiding groove; 18 is a guide rail; 19 is a slider; 20 is a ball; 21 is a first protruding part; 22 is a limiting shaft; 23 is a first limiting groove; 24 is a limiting plate; 25 is a second limiting groove; 26 is a positioning shaft; 27 is a second bearing part; 28 is a third bearing part; 29 is a fourth bearing part; 30 is a fifth bearing part; 31 is a sixth bearing part; 32 is an upper cover plate; 33 is a strip-shaped groove; 34 is a limiting handle; 35 is a first clamping jaw; 36 is a second clamping jaw; 37 is a second protruding part. Detailed implementation manners

[0044] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0045] Embodiment 1

[0046] As Figure 1 shown, it includes a pressing plate 1, a power source 2, a first clamping arm 3 and a second clamping arm 4. The first clamping arm 3 and the second clamping arm 4 are arranged oppositely and both are slidably connected to the pressing plate 1. It is characterized in that the power source 2 can drive the first clamping arm 3 to move on the pressing plate 1. A swinging assembly 5 is connected between the first clamping arm 3 and the second clamping arm 4. The swinging assembly 5 can drive the second clamping arm 4 to move in a direction opposite to that of the first clamping arm 3 through the movement of the first clamping arm 3. The first clamping arm 3 and the second clamping arm 4 can move towards or away from each other, and the movement between the first clamping arm 3 and the second clamping arm 4 is a translational movement. The first clamping arm 3 and the second clamping arm 4 are arranged oppositely, so that there is enough clearance between them to clamp buttons of different sizes. A swinging assembly 5 is connected between the first clamping arm 3 and the second clamping arm 4. The swinging assembly 5 can drive the second clamping arm 4 to move in a direction opposite to that of the first clamping arm 3 through the movement of the power source 2 driving the first clamping arm 3. Through the swinging assembly 5, the movement of the first clamping arm 3 and the second clamping arm 4 can be directly controlled, increasing the clamping force on the button and shortening the transmission distance of the force, and improving the accuracy of clamping the button. The first clamping arm 3 and the second clamping arm 4 can perform translational movement, increasing the stability of the movement and improving the accuracy of the first clamping arm 3 and the second clamping arm 4 in clamping the button.

[0047] As Figure 2As shown, the swinging assembly 5 includes a swing arm 6. The middle of the swing arm 6 is hinged to the pressing plate 1. The two ends of the swing arm 6 respectively have a first connection end 7 and a second connection end 8. The first connection end 7 is connected to the inner end of the first clamping arm 3, and the second connection end 8 is connected to the inner end of the second clamping arm 4. The swing arm 6 can swing relative to the pressing plate 1. The first connection end 7 and the second connection end 8 are located at the two ends of the swing arm 6, which increases the stability of the swing arm 6. The first connection end 7 is connected to the inner end of the first clamping arm 3, and the second connection end 8 is connected to the inner end of the second clamping arm 4, which improves the stability of the connection between the swing arm 6 and the first clamping arm 3 and the second clamping arm 4 respectively. The swing arm 6 can swing relative to the pressing plate 1, thereby driving the first clamping arm 3 and the second clamping arm 4 to achieve translational movement towards or away from each other, improving the accuracy of the first clamping arm 3 and the second clamping arm 4 for clamping buttons.

[0048] As Figures 1-3 shown, the first clamping arm 3 and the second clamping arm 4 respectively have a first through groove 9 and a second through groove 10. A first bearing member 11 and a second bearing member 27 are respectively connected to the first connection end 7 and the second connection end 8 of the swing arm 6. The first bearing member 11 on the first connection end 7 is located on the first through groove 9, and the second bearing member 27 on the second connection end 8 is located on the second through groove 10. The first bearing member 11 and the second bearing member 27 can respectively roll or slide in the first through groove 9 and the second through groove 10. The first through groove 9 and the second through groove 10 have a guiding function. A first bearing member 11 and a second bearing member 27 are respectively connected to the first connection end 7 and the second connection end 8 of the swing arm 6. The first bearing member 11 on the first connection end 7 is located on the first through groove 9. When the first clamping arm 3 moves, it can drive the first bearing member 11 on the first connection end 7 to roll or slide in the first through groove 9, thereby driving the second bearing member 27 on the second connection end 8 to roll or slide in the second through groove 10, causing the second clamping arm 4 to also move. Through the rolling or sliding of the first bearing member 11 and the second bearing member 27, the efficiency of the relative movement between the first clamping arm 3 and the second clamping arm 4 is improved, and they are respectively located in the first through groove 9 and the second through groove 10, increasing the stability.

[0049] As Figures 3-5 shown, the swinging assembly 5 further includes a hinge shaft 13. The hinge shaft 13 is located at the middle end of the swing arm 6. The hinge shaft 13 is hinged to the pressing plate 1. An adjusting block 14 is connected between the first clamping arm 3 and the second clamping arm 4. The adjusting block 14 is fixedly connected to the pressing plate 1. The hinge shaft 13 passes through the adjusting block 14 and is connected to the pressing plate 1. The adjusting block 14 has a number of through holes 15 through which the hinge shaft 13 can pass. The hinge shaft 13 located at the middle end plays a role in transmission. The hinge shaft 13 is hinged to the pressing plate 1 to make the swing arm 6 swing. An adjusting block 14 is connected between the first clamping arm 3 and the second clamping arm 4. The adjusting block 14 is fixed to the pressing plate 1. The hinge shaft 13 passes through the adjusting block 14, increasing the connection stability between the hinge shaft 13 and the pressing plate 1. The adjusting block 14 has a number of through holes 15, which can be adjusted according to the distance that the first clamping arm 3 and the second clamping arm 4 need to move, improving the accuracy of the button clamping device for clamping buttons.

[0050] As Figure 3 shown, a connecting shaft 12 is provided on the first bearing member 11 and the second bearing member 27. The first bearing member 11 and the second bearing member 27 are connected to the swing arm 6 through the connecting shaft 12. When the first bearing member 11 on the first clamping arm 3 rolls or slides, the swing arm 6 is driven to swing through the connecting shaft 12, so that the second bearing member 27 on the second clamping arm 4 rolls or slides. The connecting shaft 12 can connect the swing arm 6 with the first bearing member 11 and the second bearing member 27, and this connecting shaft 12 increases the stability of the connection between the two. When the first bearing member 11 on the first clamping arm 3 rolls or slides, the swing arm 6 is swung through the connecting shaft 12, and the second bearing member 27 on the second clamping arm 4 is caused to roll or slide through the connecting shaft 12 connected to the swing arm 6, driving the second clamping arm 4 to move.

[0051] As Figure 3 shown, a first guide groove 16 and a second guide groove 17 are provided on the pressing plate 1. The first guide groove 16 and the second guide groove 17 are arranged in parallel and have a gap. A third bearing member 28 capable of moving the first clamping arm 3 is provided between the first clamping arm 3 and the first guide groove 16, and a fourth bearing member 29 capable of moving the second clamping arm 4 is provided between the second clamping arm 4 and the second guide groove 17; or guide rails 18 are respectively provided on the first guide groove 16 and the second guide groove 17, and sliders 19 are connected to the bottoms of the first clamping arm 3 and the second clamping arm 4, and the sliders 19 can slide on the guide rails 18. The first guide groove 16 and the second guide groove 17 are arranged in parallel, so that the transmission efficiency of the two is high, and there is a gap, which increases the stability of the connection between the two and the first clamping arm 3 and the second clamping arm 4. The gap between the two enables the first clamping arm 3 and the second clamping arm 4 to slide respectively, avoiding the first clamping arm 3 and the second clamping arm 4 from getting stuck, increasing the stability of the transmission between the two. The first guide groove 16 is connected to the first clamping arm 3 through the third bearing member 28, and the second guide groove 17 is connected to the second clamping arm 4 through the fourth bearing member 29. The third bearing member 28 and the fourth bearing member 29 can roll or slide in the first guide groove 16 and the second guide groove 17 respectively, improving the accuracy of the movement of the first clamping arm 3 and the second clamping arm 4 relative to each other; guide rails 18 are respectively provided on the first guide groove 16 and the second guide groove 17, and the sliders 19 can slide on the guide rails 18, improving the efficiency of the movement of the first clamping arm 3 and the second clamping arm 4 in the first guide groove 16 and the second guide groove 17 respectively.

[0052] As Figure 3 shown, both the first guide groove 16 and the second guide groove 17 are arranged in parallel with the adjusting block 14, and the side walls of the first clamping arm 3 and the second clamping arm 4 can both be slidably connected to the adjusting block 14. Both the first guide groove 16 and the second guide groove 17 can be parallel to the adjusting block 14, making the transmission of the first clamping arm 3 and the second clamping arm 4 stable. The side walls of the first clamping arm 3 and the second clamping arm 4 can both be slidably connected to the adjusting block 14, increasing the transmission stability of the first clamping arm 3 and the second clamping arm 4.

[0053] AsFigure 3 As shown, a fifth bearing member 30 is further provided on the first guiding groove 16. The third bearing member 28 and the fifth bearing member 30 are located on the same straight line. A sixth bearing member 31 is further provided on the second guiding groove 17. The two fourth bearing members 29 and the sixth bearing member 31 are respectively located at both ends of the second clamping arm 4. The third bearing member 28 and the fifth bearing member 30 on the first guiding groove 16 are respectively located on the same straight line, which increases the connection stability between the first clamping arm 3 and the first guiding groove 16 and improves the moving efficiency of the bearing member. The fourth bearing member 29 and the sixth bearing member 31 on the second guiding groove 17 are respectively located at both ends of the second clamping arm 4, which increases the stability of the movement of the second clamping arm 4.

[0054] As Figure 4 shown, a limiting shaft 22 is connected to the bottom of the first clamping arm 3. A first limiting groove 23 is provided on the pressing plate 1. The limiting shaft 22 passes through the limiting groove and can move within the first limiting groove 23. A limiting plate 24 is hinged to the pressing plate 1. A limiting handle 34 is provided on the limiting plate 24. A second limiting groove 25 is provided on the limiting plate 24. A positioning shaft 26 is provided on the pressing plate 1. The positioning shaft 26 passes through the second limiting groove 25 and is fixedly connected to the second limiting groove 25. The limiting plate 24 is hinged to the pressing plate 1. The second limiting groove 25 is provided on the limiting plate 24. The second limiting groove 25 can move around the positioning shaft 26 to adjust the angle of the limiting plate 24. The limiting handle 34 can adjust the moving angle. The positioning shaft 26 is used to fix the angle of movement of the limiting plate 24. Through the fixation of the positioning shaft 26 and the limiting plate 24, the limiting shaft 22 can move within the first limiting groove 23, with one end abutted within the first limiting groove 23 and the other end abutted against the inner end of the limiting plate 24, which can adjust the moving distance of the first clamping arm 3 and the second clamping arm 4 and increases the accuracy of button clamping.

[0055] As Figure 5 and 6 shown, an upper cover plate 32 is hinged above the first clamping arm 3 and the second clamping arm 4. Strip-shaped grooves 33 are respectively provided on the first clamping arm 3 and the second clamping arm 4. The strip-shaped groove 33 on the first clamping arm 3 is in a curved strip shape. The strip-shaped groove 33 on the second clamping arm 4 is located above the connecting shaft 12. Lubricating oil can be placed in the strip-shaped groove 33, which increases the lubricating effect, reduces the friction between the upper cover plate 32 and the first clamping arm 3 and the second clamping arm 4, and facilitates the sliding of the first clamping arm 3 and the second clamping arm 4 within the upper cover plate 32.

[0056] As Figure 1As shown in the figure, the outer ends of the first clamping arm 3 and the second clamping arm 4 are respectively connected with a first claw 35 and a second claw 36. The first claw 35 and the second claw 36 are arranged oppositely. The top and bottom end faces of the first claw 35 and the second claw 36 are respectively provided with a second protruding part 37. The second protruding part 37 is located inside the first claw 35 and the second claw 36. The included angle area of the second protruding part 37 is larger than the included angle area of the first claw 35 and the second claw 36. The first claw 35 and the second claw 36 are arranged oppositely, which increases the stability of clamping the button. There is a second protruding part 37 inside the included angle of the first claw 35 and the second claw 36. After the button is clamped by the first claw 35 and the second claw 36, the included angle area of the second protruding part 37 is larger than the area of the first claw 35 and the second claw 36, making it difficult for the button to fall off and improving the stability of clamping the button.

[0057] Embodiment 2

[0058] As Figure 7 shown in the figure, the general content of this embodiment is the same as that of Embodiment 1. The difference is that: in this embodiment, there are balls 20 between the side wall of the guide rail 18 and the two side walls of the slider 19, which can facilitate the sliding of the slider 19 on the guide rail 18. The two ends of the slider 19 are respectively provided with a first protruding part 21. The first protruding part 21 can make the balls 20 located between the slider 19 and the guide rail 18. The balls 20 are located between the side wall of the slider 19 and the side wall of the guide rail 18, which improves the sliding efficiency of the slider 19. The two ends of the slider 19 are respectively provided with a first protruding part 21. The first protruding part 21 is located between the slider 19 and the guide rail 18, which can prevent the balls 20 from falling off during rolling and increases the stability of the connection.

[0059] Embodiment 3

[0060] The general content of this embodiment is the same as that of Embodiment 1. The difference is that: a sewing machine or a button sewing machine is provided, and any one of the button clamping devices in Embodiment 1 is included in the sewing machine or the button sewing machine.

[0061] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A clamping device in a sewing machine or a button sewing machine, comprising a pressing plate (1), a power source (2), a first clamping arm (3) and a second clamping arm (4), wherein the first clamping arm (3) and the second clamping arm (4) are arranged opposite to each other and both are slidably connected to the pressing plate (1), characterized in that: The power source (2) can drive the clamp arm 1 (3) to move on the pressure plate (1); a swing assembly (5) is connected between the clamp arm 1 (3) and the clamp arm 2 (4); the swing assembly (5) can drive the clamp arm 2 (4) to move in the opposite direction to the clamp arm 1 (3) through the movement of the clamp arm 1 (3); the clamp arm 1 (3) and the clamp arm 2 (4) can move towards or away from each other, and the movement between the clamp arm 1 (3) and the clamp arm 2 (4) is a translational motion.

2. A clipping device in a sewing machine or a button sewing machine according to claim 1, characterized in that: The swing assembly (5) comprises a swing arm (6), the middle part of which is hinged on the pressure plate (1), and the two ends of the swing arm (6) respectively have a connecting end one (7) and a connecting end two (8), wherein the connecting end one (7) is connected to the inner end of the clamping arm one (3), and the connecting end two (8) is connected to the inner end of the clamping arm two (4), and the swing arm (6) can swing relative to the pressure plate (1).

3. A clipping device in a sewing machine or a button sewing machine according to claim 2, characterized in that: The clamp arm 1 (3) and the clamp arm 2 (4) are provided with a through groove 1 (9) and a through groove 2 (10), respectively; the connection end 1 (7) and the connection end 2 (8) of the swing arm (6) are connected with a bearing component 1 (11) and a bearing component 2 (27), respectively; the bearing component 1 (11) on the connection end 1 (7) is located on the through groove 1 (9), and the bearing component 2 (27) on the connection end 2 (8) is located on the through groove 2 (10); the bearing component 1 (11) and the bearing component 2 (27) can roll or slide in the through groove 1 (9) and the through groove 2 (10), respectively.

4. A clipping device in a sewing machine or a button sewing machine according to claim 2, characterized in that: The swing assembly (5) also includes a hinge shaft (13), the hinge shaft (13) is located at the middle end of the swing arm (6), the hinge shaft (13) is hinged on the pressure plate (1), an adjustment block (14) is connected between the clamping arm 1 (3) and the clamping arm 2 (4), the adjustment block (14) is fixedly connected to the pressure plate (1), the hinge shaft (13) passes through the adjustment block (14) and is connected to the pressure plate (1), and the adjustment block (14) has a plurality of through holes (15) through which the hinge shaft (13) can pass.

5. A clipping device in a sewing machine or a button sewing machine according to claim 3, characterized in that: The bearing member 1 (11) and the bearing member 2 (27) are provided with a connecting shaft (12), and the bearing member 1 (11) and the bearing member 2 (27) are connected to the swing arm (6) via the connecting shaft (12). When the bearing member 1 (11) on the clamping arm 1 (3) rolls or slides, the swing arm (6) is driven to swing via the connecting shaft (12), thereby causing the bearing member 2 (27) on the clamping arm 2 (4) to roll or slide.

6. A clipping device in a sewing machine or a button sewing machine according to claim 3, characterized in that: The pressure plate (1) is provided with a guide groove 1 (16) and a guide groove 2 (17), the guide groove 1 (16) and the guide groove 2 (17) are arranged in parallel, and there is a gap between the guide groove 1 (16) and the guide groove 2 (17), a bearing component 3 (28) capable of moving the clamping arm 1 (3) is provided between the clamping arm 1 (3) and the guide groove 1 (16), and a bearing component 4 (29) capable of moving the clamping arm 2 (4) is provided between the clamping arm 2 (4) and the guide groove 2 (17); or guide rails (18) are respectively provided on the guide groove 1 (16) and the guide groove 2 (17), and a slider (19) is connected to the bottom of the clamping arm 1 (3) and the clamping arm 2 (4), and the slider (19) can slide on the guide rail (18).

7. A clipping device in a sewing machine or a button sewing machine according to claim 6, characterized in that: The guide groove 1 (16) and the guide groove 2 (17) are both arranged parallel to the adjustment block (14); the side walls of the clamp arm 1 (3) and the clamp arm 2 (4) are both slidably connected to the adjustment block (14); the guide groove 1 (16) is also provided with a bearing component 5 (30); the bearing component 3 (28) and the bearing component 5 (30) are located in the same straight line; the guide groove 2 (17) is also provided with a bearing component 6 (31); the two bearing components 4 (29) and the bearing component 6 (31) are respectively located at two ends of the clamp arm 2 (4).

8. A clipping device in a sewing machine or a button sewing machine according to claim 6, characterized in that: A ball bearing (20) is provided between the side wall of the guide rail (18) and the two side walls of the slider (19) to facilitate the slider (19) to slide on the guide rail (18), and a protrusion (21) is provided at each end of the slider (19), and the protrusion (21) enables the ball bearing (20) to be located between the slider (19) and the guide rail (18).

9. A clipping device in a sewing machine or a button sewing machine according to claim 1, characterized in that: The bottom of the clamp arm 1 (3) is connected to a limiting shaft (22), a limiting groove 1 (23) is provided on the pressure plate (1), the limiting shaft (22) passes through the limiting groove and can move in the limiting groove 1 (23), a limiting plate (24) is hinged on the pressure plate (1), a limiting handle (34) is provided on the limiting plate (24), a limiting groove 2 (25) is provided on the limiting plate (24), a positioning shaft (26) is provided on the pressure plate (1), the positioning shaft (26) passes through the limiting groove 2 (25) and is fixedly connected to the limiting groove 2 (25), an upper cover plate (32) is hinged on the top of the clamp arm 1 (3) and the clamp arm 2 (4), and the clamp arm 1 (3) and the clamp arm 2 (4) are respectively A strip groove (33) is provided, the strip groove (33) on the clamp arm 1 (3) is in a curved strip shape, the strip groove (33) on the clamp arm 2 (4) is located above the connecting shaft (12), the outer ends of the clamp arm 1 (3) and the clamp arm 2 (4) are respectively connected with a clamp claw 1 (35) and a clamp claw 2 (36), the clamp claw 1 (35) and the clamp claw 2 (36) are arranged opposite to each other, the top end surface and the bottom end surface of the clamp claw 1 (35) and the clamp claw 2 (36) are respectively provided with a protrusion 2 (37), the protrusion 2 (37) is located on the inner side of the clamp claw 1 (35) and the clamp claw 2 (36), and the angle area of ​​the protrusion 2 (37) is greater than the angle area of ​​the clamp claw 1 (35) and the clamp claw 2 (36).

10. A sewing machine or a button sewing machine, characterized in that: The sewing machine or button-stitching machine comprises the clipping device according to any one of claims 1-9.

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