Combined driving mechanism of bar tacking machine and bar tacking machine

Abstract

The utility model relates to the technical field of bartacking machines, in particular to a combined driving mechanism of a bartacking machine and the bartacking machine. Comprising a thread sweeping mechanism used for executing a thread sweeping action; the presser foot lifting mechanism is used for executing a presser foot lifting action; the thread trimming mechanism is used for executing a thread trimming action; the driving motor is used for driving the thread sweeping mechanism, the presser foot lifting mechanism and the thread trimming mechanism to work; the thread sweeping mechanism comprises a thread sweeping action assembly, a thread sweeping mechanism and a thread sweeping mechanism, the transmission arm is used for being connected with the driving motor; the thread sweeping connecting rod is used for connecting the thread sweeping action assembly and the transmission arm, so that the driving motor can drive the thread sweeping action assembly to execute the thread sweeping action; the thread sweeping mechanism further comprises an independent driving assembly, and the independent driving assembly can independently drive the thread sweeping mechanism to work.

Description

Technical Field

[0001] The utility model relates to the technical field of bar tacking machines, in particular to a combined driving mechanism of a bar tacking machine and the bar tacking machine. Background Art

[0002] Bartacking machines are a common type of garment processing equipment. They facilitate the sewing of reinforced sections on garments, reinforce buttonhole tails, and sew buttonholes, effectively improving production efficiency and product quality.

[0003] Now the technology of bar tacking machines is very mature. For example, Chinese patent application number CN202322961755.5 discloses a transmission structure and a bar tacking machine that can simultaneously drive the thread sweeping mechanism, presser foot lifting mechanism and thread cutting mechanism of the bar tacking machine through a single drive motor.

[0004] However, with the development of clothing design, a variety of patterns have emerged. When sewing certain patterns, it is necessary to be able to independently control the thread sweeping mechanism to facilitate the operator's sewing. However, existing bartacking machines, which use a single drive motor to drive three mechanisms simultaneously, have poor operational flexibility during sewing, making it difficult to sew different patterns. Utility Model Content

[0005] The utility model aims to provide a combined driving mechanism of a bar tacking machine and a bar tacking machine, so as to improve the problem that when sewing individual patterns, the current bar tacking machine cannot independently control the thread sweeping mechanism, resulting in inconvenience during sewing.

[0006] The purpose of this utility model is achieved in this way:

[0007] A combined drive mechanism for a bar tacking machine, comprising:

[0008] A line sweeping mechanism, used for performing a line sweeping action;

[0009] The presser foot lifting mechanism is used to perform the presser foot lifting action;

[0010] A thread trimming mechanism, used for performing a thread trimming action;

[0011] A driving motor is used to drive the thread sweeping mechanism, the presser foot lifting mechanism, and the thread trimming mechanism to work;

[0012] Wherein, the line sweeping mechanism comprises:

[0013] The line sweeping action component is used to perform the line sweeping action;

[0014] A transmission arm, used for connecting to the drive motor;

[0015] A line sweeping connecting rod is used to connect the line sweeping action component and the transmission arm, so that the drive motor can drive the line sweeping action component to perform the line sweeping action;

[0016] The line sweeping mechanism further comprises an independent driving component, and the independent driving component can independently drive the line sweeping mechanism to work.

[0017] Preferably, the independent drive assembly includes:

[0018] electromagnet;

[0019] A swing arm, one end of which is connected to the electromagnet, and the electromagnet can drive the swing arm to swing;

[0020] A crank is rotatably mounted on the frame; the crank comprises a first swing arm portion and a second swing arm portion, the first swing arm portion is connected to the other end of the swing arm; the second swing arm portion is hinged to the connecting member;

[0021] a connecting member for transmitting the power of the crank to the transmission arm;

[0022] When the swing arm swings, the transmission arm can be driven to swing via the connecting member.

[0023] Preferably, a connecting column is provided at the upper end of the transmission arm;

[0024] The connecting piece is provided with a strip-shaped hole, and the strip-shaped hole can be sleeved on the outer side of the connecting column;

[0025] When the connecting member moves, the inner side wall of the strip-shaped hole abuts against the peripheral side of the connecting column and drives the connecting column.

[0026] Preferably, a reset connection portion is formed on the connecting piece, and the reset connection portion is used to connect the second reset spring.

[0027] Preferably, the motor shaft of the drive motor is sleeved with:

[0028] A line sweeping cam, used to drive the line sweeping mechanism to work;

[0029] A thread trimming cam, used to drive the thread trimming mechanism to work;

[0030] A presser foot lifting cam, used for driving the presser foot lifting mechanism to work;

[0031] The transmission arm is provided with a roller, and the roller can abut against the peripheral side of the line sweeping cam;

[0032] When the motor shaft rotates, the line sweeping cam can push the roller to move and drive the transmission arm to rotate.

[0033] Preferably, the pore diameter L of the strip-shaped hole is larger than the diameter of the connecting column, but the pore diameter L does not exceed . times the diameter of the connecting column.

[0034] Preferably, the connecting column and the transmission arm are integrally formed.

[0035] Preferably, a connecting ring groove is formed on the connecting column, and the connecting ring groove is used to connect a reset spring 1, and the transmission arm can be driven to reset through the reset spring 1.

[0036] Preferably, the driving motor is arranged on the frame;

[0037] A limiting column is formed on the connecting piece;

[0038] The frame is provided with a limiting slot, the limiting post can extend into the limiting slot, and the movement direction of the connecting member can be limited by the cooperation between the limiting slot and the limiting post;

[0039] The length direction of the limiting groove is the same as the length direction of the strip-shaped hole.

[0040] A bar tacking machine comprises the combined driving mechanism of the bar tacking machine described above.

[0041] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0042] The thread sweeping mechanism in the present technical solution is provided with an additional independent driving component, and the independent driving component can independently drive the thread sweeping mechanism to perform the thread sweeping action, thereby making it easier for the operator to sew different patterns. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a structural diagram of the utility model;

[0044] Figure 2 This is a partial enlarged view of the cooperation between the wire sweeping mechanism and the pneumatic motor of the utility model;

[0045] Figure 3 It is an exploded view of the independent drive assembly of the utility model;

[0046] Figure 4 It is a cross-sectional view of the independent drive assembly of the utility model when it is matched with the connecting column.

[0047] Figure 5 This is a schematic diagram of the structure of the utility model when it is set in a frame;

[0048] Figure 6 This is a half-section view of the frame of the present invention after a portion of the frame is cut away;

[0049] Figure 7 for Figure 5 Enlarged view of point A in the middle;

[0050] Reference numerals:

[0051] 1. Frame; 11. Drive motor; 12. Limit slot; 13. Fixing column; 14. Return spring 1; 15. Return spring 2;

[0052] 2. Thread-wiping mechanism; 21. Thread-wiping connecting rod; 22. Transmission arm; 23. Connecting column; 24. Thread-wiping cam; 25. Roller; 26. Connecting ring groove; 27. Drive connection part;

[0053] 3. Presser foot lifting mechanism; 31. Presser foot lifting cam;

[0054] 4. Thread trimming mechanism; 41. Thread trimming cam;

[0055] 5. Independent drive assembly; 51. Electromagnet; 52. Swing arm; 53. Crank; 531. First swing arm portion; 532. Second swing arm portion; 54. Connector; 55. Strip hole; 56. Limiting column; 57. Positioning slot; 58. Reset connection portion; 59. Reset groove;

[0056] 6. Line sweeping action component; 7. Aperture L. DETAILED DESCRIPTION

[0057] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0058] like Figure 1-Figure 3 The combined drive mechanism of a bar tacking machine shown includes:

[0059] The line sweeping mechanism 2 is used to perform the line sweeping action;

[0060] The presser foot lifting mechanism 3 is used to perform the presser foot lifting action;

[0061] A thread trimming mechanism 4, for performing a thread trimming action;

[0062] The driving motor 11 is used to drive the thread sweeping mechanism 2, the presser foot lifting mechanism 3, and the thread trimming mechanism 4 to work.

[0063] Wherein, the line sweeping mechanism 2 includes:

[0064] The line sweeping action component 6 is used to perform the line sweeping action;

[0065] A transmission arm 22, which is used to connect to the drive motor 11;

[0066] The line-sweeping connecting rod 21 is used to connect the line-sweeping action component 6 and the transmission arm 22, so that the driving motor 11 can drive the line-sweeping action component 6 to perform the line-sweeping action.

[0067] The existing technology can use a single drive motor 11 to drive the thread sweeping mechanism 2, the presser foot lifting mechanism 3 and the thread cutting mechanism 4 to move synchronously and cooperate to complete the sewing work.

[0068] However, since the thread sweeping mechanism 2 cannot be operated independently, the flexibility of the device is poor, which is very inconvenient when sewing some patterns.

[0069] Therefore, in the present technical solution, the line sweeping mechanism 2 further includes an independent driving component 5, which can independently drive the line sweeping mechanism 2 to work.

[0070] Furthermore, the independent drive assembly 5 includes:

[0071] Electromagnet 51;

[0072] The swing arm 52 has one end connected to the electromagnet 51, and the electromagnet 51 can drive the swing arm 52 to swing;

[0073] The crank 53 is rotatably mounted on the frame 1; the crank has a first swing arm portion 531 and a second swing arm portion 532, the first swing arm portion 531 is connected to the other end of the swing arm 52; the second swing arm portion 532 is hinged to the connecting member 54;

[0074] The connecting member 54 is used to transmit the power of the crank 53 to the transmission arm 22 .

[0075] In this embodiment, the connecting member 54 is hinged to the crank 53 .

[0076] When the swing arm 52 swings, it can drive the transmission arm 22 to swing through the connecting part 54. Since the transmission arm 22 is only connected to the thread sweeping connecting rod 21 of the thread sweeping mechanism 2, when the connecting part 54 drives the transmission arm 22 to rotate, it will drive the thread sweeping mechanism 2 to work, and will not drive the presser foot lifting mechanism 3 and the thread cutting mechanism 4 to move, thereby achieving the purpose of being able to operate the thread sweeping mechanism 2 alone to perform the thread sweeping action, so as to cooperate with the operator to perform sewing work.

[0077] like Figure 1-Figure 4 As shown, a connecting column 23 is provided at the upper end of the transmission arm 22 .

[0078] The connecting member 54 is provided with a strip-shaped hole 55, which can be sleeved on the outer side of the connecting column 23;

[0079] When the connecting member 54 moves, the inner side wall of the strip-shaped hole 55 can abut against the peripheral side of the connecting post 23 and push the connecting post 23 to move as the connecting member 54 continues to move.

[0080] In this embodiment, the connecting column 23 is passed through the upper end of the transmission arm 22, and the line-sweeping link 21 is also connected to the connecting column 23. When the connecting member 54 drives the connecting column 23 to move, it can synchronously drive the line-sweeping link 21 to move, thereby driving the line-sweeping action component 6 to perform the line-sweeping action.

[0081] As another preferred embodiment, the connecting column 23 and the transmission arm 22 are integrally formed.

[0082] A driving connection portion 27 is provided at the upper end of the transmission arm 22 , and the line-sweeping connecting rod 21 is connected to the driving connection portion 27 , so that the transmission arm 22 can drive the line-sweeping action component 6 to perform the line-sweeping action.

[0083] Furthermore, a reset connection portion 58 is formed on the connecting member 54 , and the reset connection portion 58 is used to connect to the reset spring 2 15 .

[0084] The second return spring 15 is used to quickly reset the connecting member 54 to prevent the transmission arm 22 from driving the connecting post 23 to move when the drive motor 11 is started, causing the connecting post 23 to abut against the inner wall of the strip hole 55, causing the connecting member 54 to interfere with the drive motor 11 driving the line sweeping action component 6 to perform the line sweeping action.

[0085] A reset groove 59 is formed on the reset connection portion 58 , and one end of the reset spring 2 15 can be connected to the reset groove 59 .

[0086] like Figure 1-Figure 3 As shown, the motor shaft of the drive motor 11 is sleeved with:

[0087] The line sweeping cam 24 is used to drive the line sweeping mechanism 2 to work;

[0088] The thread trimming cam 41 is used to drive the thread trimming mechanism 4 to work;

[0089] The presser foot lifting cam 31 is used to drive the presser foot lifting mechanism 3 to work;

[0090] The transmission arm 22 is provided with a roller 25 , which can abut against the peripheral side of the line sweeping cam 24 ;

[0091] When the motor shaft rotates, the roller 25 abuts against the circumference of the line sweeping cam 24 , so as the line sweeping cam 24 rotates, the line sweeping cam 24 can push the roller 25 to rise and drive the transmission arm 22 to rotate.

[0092] Specific as Figure 4 As shown, the diameter L7 of the strip-shaped hole 55 is larger than the diameter of the connecting column 23 , but the diameter L7 does not exceed 1.5 times the diameter of the connecting column 23 .

[0093] When the driving motor 11 drives the transmission arm 22 to rotate, the upper end of the transmission arm 22 moves along an arc. Therefore, the connecting post 23 provided at the upper end of the transmission arm 22 also moves along the arc, which makes it easy for the connecting post 23 to collide with the inner wall of the strip-shaped hole 55.

[0094] In order to prevent the connecting post 23 from colliding with the inner wall of the strip hole 55 during movement and causing damage to the parts, it is necessary to increase the area of ​​the strip hole 55 to leave enough avoidance space for the connecting post 23 to move.

[0095] A connecting ring groove 26 is formed on the connecting column 23, and the connecting ring groove 26 is used to connect the reset spring 14, and the reset spring 14 can drive the transmission arm 22 to reset.

[0096] like Figure 1-Figure 7 The tacking machine shown includes a frame 1 and a combined driving mechanism of the tacking machine as described above.

[0097] The drive motor 11 is mounted on the frame 1. The frame 1 is provided with a fixing post 13. The fixing post 13 is provided with a return spring 14 and a return spring 2 15.

[0098] A limiting column 56 is formed on the connecting member 54 .

[0099] The frame 1 is provided with a limit slot 12, into which the limit post 56 can extend, and the movement direction of the connector 54 can be limited by the cooperation between the limit slot 12 and the limit post 56. The length direction of the limit slot 12 is the same as the length direction of the strip hole 55.

[0100] When the limiting post 56 extends into the limiting groove 12, the limiting post 56 cooperates with the limiting groove 12, so that the connecting member 54 can only move in the horizontal direction. The connecting member 54 is hinged to the lower end of the crank 53. When the electromagnet 51 drives the swing arm 52 to swing, the connecting member 54 is restricted to move only in the horizontal direction, so that the connecting member 54 can stably push the connecting post 23 to move.

[0101] As a preferred embodiment, a positioning groove 57 is formed on the limiting column 56. When the limiting column 56 extends into the limiting groove 12, the positioning groove 57 can limit the position of the connecting member 54 to prevent the connecting member 54 from deflecting or falling and affecting the transmission effect.

[0102] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification for the understanding and reading of those familiar with this technology, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of the present invention without substantially changing the technical content.

[0103] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0104] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

Claims

1. A combined drive mechanism for a bar tacking machine, characterized in that: include: A line sweeping mechanism (2), configured to perform a line sweeping action; A presser foot lifting mechanism (3), used for performing a presser foot lifting action; A thread trimming mechanism (4), for performing a thread trimming action; A driving motor (11) is used to drive the thread sweeping mechanism (2), the presser foot lifting mechanism (3), and the thread cutting mechanism (4) to operate; Wherein, the line sweeping mechanism (2) comprises: A line sweeping action component (6), for performing a line sweeping action; a transmission arm (22) for connecting to the drive motor (11); A line-sweeping connecting rod (21) is used to connect the line-sweeping action component (6) and the transmission arm (22), so that the driving motor (11) can drive the line-sweeping action component (6) to perform the line-sweeping action; The line-sweeping mechanism (2) further comprises an independent driving component (5), and the independent driving component (5) can independently drive the line-sweeping mechanism (2) to operate.

2. A combined drive mechanism for a bar tacking machine according to claim 1, characterized in that: The independent drive assembly (5) comprises: electromagnet (51); A swing arm (52), one end of which is connected to the electromagnet (51), and the electromagnet (51) can drive the swing arm (52) to swing; A crank (53) is rotatably mounted on the frame (1); the crank comprises a first swing arm portion (531) and a second swing arm portion (532); the first swing arm portion (531) is connected to the other end of the swing arm (52); the second swing arm portion (532) is hinged to a connecting member (54); a connecting member (54) for transmitting the power of the crank (53) to the transmission arm (22); When the swing arm (52) swings, the transmission arm (22) can be driven to swing via the connecting member (54).

3. The combined drive mechanism of a bar tacking machine according to claim 2, characterized in that: The upper end of the transmission arm (22) is provided with a connecting column (23); The connecting piece (54) is provided with a strip-shaped hole (55), and the strip-shaped hole (55) can be sleeved on the outside of the connecting column (23); When the connecting member (54) moves, the inner side wall of the strip-shaped hole (55) abuts against the peripheral side of the connecting column (23) and drives the connecting column (23).

4. The combined drive mechanism of a bar tacking machine according to claim 2, characterized in that: A reset connection portion (58) is formed on the connecting piece (54), and the reset connection portion (58) is used to connect the second reset spring (15).

5. A combined drive mechanism for a bar tacking machine according to any one of claims 2 to 4, characterized in that: The motor shaft of the driving motor (11) is sleeved with: A line sweeping cam (24) is used to drive the line sweeping mechanism (2) to work; A thread trimming cam (41) is used to drive the thread trimming mechanism (4) to work; A presser foot lifting cam (31) is used to drive the presser foot lifting mechanism (3) to work; The transmission arm (22) is provided with a roller (25), and the roller (25) can abut against the peripheral side of the line sweeping cam (24); When the motor shaft rotates, the line sweeping cam (24) can push the roller (25) to move and drive the transmission arm (22) to rotate.

6. The combined drive mechanism of a bar tacking machine according to claim 5, characterized in that: The hole diameter L(7) of the strip-shaped hole (55) is larger than the diameter of the connecting column (23), but the hole diameter L(7) does not exceed 1.5 times the diameter of the connecting column (23).

7. A combined drive mechanism for a bar tacking machine according to claim 3 or 4, characterized in that: The connecting column (23) and the transmission arm (22) are integrally formed.

8. A combined drive mechanism for a bar tacking machine according to claim 3 or 4, characterized in that: A connecting ring groove (26) is formed on the connecting column (23), and the connecting ring groove (26) is used to connect a reset spring (14). The reset spring (14) can drive the transmission arm (22) to reset.

9. A combined drive mechanism for a bar tacking machine according to claim 3 or 4, characterized in that: The driving motor (11) is arranged on the frame (1); A limiting column (56) is formed on the connecting piece (54); A limiting groove (12) is provided on the frame (1), and the limiting column (56) can extend into the limiting groove (12). The movement direction of the connecting member (54) can be limited by the cooperation between the limiting groove (12) and the limiting column (56); The length direction of the limiting groove (12) is the same as the length direction of the strip-shaped hole (55).

10. A bar tacking machine, characterized in that: A combined drive mechanism comprising the tacking machine according to any one of claims 1 to 9.

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