An automatic adjusting type presser foot device for a fly tying machine

Abstract

The utility model provides a kind of automatic adjusting type presser foot device for trouser end sewing machine, including fixed plate, the side surface of fixed plate is equipped with first connecting plate and second connecting plate, the front fixed installation of the end of first connecting plate away from fixed plate is equipped with second fixed block, the side of fixed plate is equipped with servo motor, the output shaft of servo motor extends to the other side of fixed plate and is fixedly connected with the one end of adjusting screw rod, the surface of adjusting screw rod is equipped with adjusting assembly, the front of second fixed block and adjusting assembly are respectively equipped with first presser foot assembly and second presser foot assembly, adjusting screw rod is rotated by servo motor drive, to adjust the distance between first presser foot assembly and second presser foot assembly under the action of adjusting assembly, and the mode of servo motor drive adjusting screw rod can accurately adjust the distance between first presser foot assembly and second presser foot assembly, and this kind of adjustment mode is simple and convenient, effectively improves trouser end sewing efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of trouser loop machine, specifically relating to an automatic adjustable presser foot device for trouser loop machines. Background Technology

[0002] A trouser loop sewing machine is a specialized piece of machinery used to manufacture belt loops (i.e., trouser loops) for trousers. It plays a vital role in the garment manufacturing industry, especially in the mass production of trousers. Using a trouser loop sewing machine can significantly improve work efficiency and product quality. This type of machine typically automates multiple steps, including cutting and sewing, ensuring that each trouser loop is consistent in size and shape, while also guaranteeing the strength of the stitching. When sewing belt loops, a presser foot is used to tighten them. To improve sewing efficiency, double-needle trouser loop sewing machines are currently widely used. For trouser loops of different sizes, the distance between the two presser feet needs to be adjusted. However, traditional double-needle trouser loop sewing machines require manual adjustment of the presser foot distance by loosening and tightening the bolts, which is cumbersome and time-consuming, failing to meet the demands of frequent changes in sewing styles in modern production. Furthermore, manual adjustment has low precision, affecting product consistency. Utility Model Content

[0003] The purpose of this invention is to provide an automatic adjustable presser foot device for a trouser loop machine, which aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic adjustable presser foot device for a trouser loop machine, comprising a fixed plate, a first connecting plate and a second connecting plate mounted on the side of the fixed plate, a base plate fixedly connected to the bottom of the side of the fixed plate, a first opening and a second opening formed on the surface of the base plate, a first fixing block fixedly connected between the first connecting plate and the second connecting plate, a first guide rail mounted on the front of the first connecting plate, a second fixing block fixedly mounted on the front of the end of the first connecting plate away from the fixed plate, a servo motor mounted on one side of the fixed plate, the output shaft of the servo motor extending to the other side of the fixed plate and fixedly connected to one end of an adjusting screw, the other end of the adjusting screw rotatably connected to the second fixing block, an adjusting assembly mounted on the surface of the adjusting screw, the adjusting assembly slidably connected to the first guide rail, and a first presser foot assembly and a second presser foot assembly respectively mounted on the front of the second fixing block and the adjusting assembly.

[0005] As a preferred technical solution of this utility model, the adjustment component includes a first slider that is slidably mounted on the surface of a first guide rail. An adjustment plate is fixedly connected to the front of the first slider, and a lead screw nut is fixedly connected to the middle of the back of the adjustment plate. The lead screw nut is threadedly connected to the adjustment lead screw. A side plate is installed at one end of the adjustment plate, and a movable plate is fixedly installed at the bottom of the side plate. The movable plate is movably disposed in a second opening, and a third opening is provided on the surface of the movable plate.

[0006] As a preferred technical solution of this utility model, the first presser foot assembly and the second presser foot assembly have the same structure and are both composed of a pressing cylinder, a connecting piece, a second slider, a second guide rail, a connecting block, and a presser foot plate. The connecting piece is L-shaped, and the telescopic end of the pressing cylinder is connected to the horizontal section of the connecting piece. The second slider is fixedly installed on the back of the vertical section of the connecting piece, the connecting block is fixedly installed on the front of the pressing cylinder, the second guide rail is fixedly installed on the front of the connecting block, the second slider is slidably connected to the second guide rail, the presser foot is fixedly installed on the front of the vertical section of the connecting piece, and the surface of the presser foot plate is provided with a groove. In the first presser foot assembly, the pressing cylinder is fixedly connected to the front of the second fixed block, and in the second presser foot assembly, the pressing cylinder is fixedly connected to the front of the adjusting plate.

[0007] As a preferred technical solution of this utility model, the surface of the horizontal section of the connector is provided with a socket, and the second guide rail is inserted into the socket.

[0008] As a preferred technical solution of this utility model, the slot of the pressure foot plate in the first pressure foot assembly corresponds to the position of the first opening, and the slot of the pressure foot plate in the second pressure foot assembly corresponds to the position of the third opening.

[0009] As a preferred technical solution of this utility model, the surface of the movable plate and the surface of the base plate are on the same horizontal plane.

[0010] As a preferred technical solution of this utility model, the surface of the first connecting plate is provided with a strip-shaped through hole, the lead screw nut passes through the strip-shaped through hole and is disposed between the first connecting plate and the second connecting plate, a sensing plate is installed on the back of the lead screw nut, and a proximity switch is embedded in the end of the second connecting plate near the servo motor.

[0011] As a preferred technical solution of this utility model, the servo motor, the pressing cylinder, and the proximity switch are all electrically connected to the control device of the double-needle trouser loop machine. The servo motor is equipped with an encoder for detecting the rotation angle of the servo motor.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by driving the adjusting screw to rotate by a servo motor, the distance between the first presser foot assembly and the second presser foot assembly can be adjusted under the action of the adjusting component. The servo motor driving the adjusting screw can accurately adjust the distance between the first presser foot assembly and the second presser foot assembly. Moreover, this adjustment method is simple and convenient, and effectively improves the sewing efficiency of trouser loops. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a partial structural schematic diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the adjustment component in this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the first presser foot assembly in this utility model;

[0018] Figure 5 This is a schematic diagram of the connecting component in this utility model.

[0019] In the diagram: 1. Fixed plate; 2. First connecting plate; 3. Second connecting plate; 4. Base plate; 5. First opening; 6. Second opening; 7. First fixing block; 8. First guide rail; 9. Second fixing block; 10. Servo motor; 11. Adjusting screw; 12. Adjusting assembly; 121. First slider; 122. Adjusting plate; 123. Screw nut; 124. Side plate; 125. Moving plate; 126. Third opening; 13. First pressure foot assembly; 14. Second pressure foot assembly; 15. Pressing cylinder; 16. Connector; 161. Insertion hole; 17. Second slider; 18. Second guide rail; 19. Connecting block; 20. Pressure foot plate; 21. Slot; 22. Strip-shaped through hole; 23. Sensing plate; 24. Proximity switch. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5 This utility model provides the following technical solution: an automatic adjustable presser foot device for a trouser loop machine, including a fixed plate 1, a first connecting plate 2 and a second connecting plate 3 installed on the side of the fixed plate 1, a base plate 4 fixedly connected to the bottom of the side of the fixed plate 1, a first opening 5 and a second opening 6 opened on the surface of the base plate 4, a first fixing block 7 fixedly connected between the first connecting plate 2 and the second connecting plate 3, a first guide rail 8 installed on the front of the first connecting plate 2, a second fixing block 9 fixedly installed on the front of the end of the first connecting plate 2 away from the fixed plate 1, a servo motor 10 installed on one side of the fixed plate 1, the output shaft of the servo motor 10 extending to the other side of the fixed plate 1 and fixedly connected to one end of an adjusting screw 11, the other end of the adjusting screw 11 being rotatably connected to the second fixing block 9, an adjusting assembly 12 installed on the surface of the adjusting screw 11, the adjusting assembly 12 being slidably connected to the first guide rail 8, and a first presser foot assembly 13 and a second presser foot assembly 14 respectively installed on the front of the second fixing block 9 and the adjusting assembly 12.

[0022] In this embodiment, the adjustment assembly 12 includes a first slider 121 slidably mounted on the surface of the first guide rail 8. An adjustment plate 122 is fixedly connected to the front of the first slider 121. A lead screw nut 123 is fixedly connected to the middle of the back of the adjustment plate 122. The lead screw nut 123 is threadedly connected to the adjustment lead screw 11. A side plate 124 is installed at one end of the adjustment plate 122. A movable plate 125 is fixedly installed at the bottom of the side plate 124. The movable plate 125 is movably disposed in the second opening 6. A third opening 126 is opened on the surface of the movable plate 125.

[0023] Specifically, the servo motor 10 drives the adjusting screw 11 to rotate, and the screw nut 123 is threadedly connected to the adjusting screw 11. Therefore, when the adjusting screw 11 rotates, the screw nut 123 will drive the adjusting plate 122 to move along the direction of the adjusting screw 11. The first slider 121, in conjunction with the first guide rail 8, can improve the stability of the movement of the adjusting plate 122. The third opening 126 facilitates the needle bar of the trouser loop machine to sew the trouser loop.

[0024] In this embodiment, the first presser foot assembly 13 and the second presser foot assembly 14 have the same structure and are both composed of a pressing cylinder 15, a connecting member 16, a second slider 17, a second guide rail 18, a connecting block 19, and a presser foot plate 20. The connecting member 16 is L-shaped, and the telescopic end of the pressing cylinder 15 is connected to the horizontal section of the connecting member 16. The second slider 17 is fixedly installed on the back of the vertical section of the connecting member 16. The connecting block 19 is fixedly installed on the front of the pressing cylinder 15. The second guide rail 18 is fixedly installed on the front of the connecting block 19. The second slider 17 is slidably connected to the second guide rail 18. The presser foot is fixedly installed on the front of the vertical section of the connecting member 16. The surface of the presser foot plate 20 is provided with a slot 21. In the first presser foot assembly 13, the pressing cylinder 15 is fixedly connected to the front of the second fixing block 9. In the second presser foot assembly 14, the pressing cylinder 15 is fixedly connected to the front of the adjusting plate 122.

[0025] Specifically, when sewing the trouser loops, the fabric is located on the surface of the base plate 4 and at the bottom of the two presser foot plates 20. The connecting piece 16 is lowered by the pressing cylinder 15. The second slider 17, in conjunction with the second guide rail 18, can improve the lifting stability of the presser foot plate 20. In this way, the presser foot plate 20 can be pressed tightly against the surface of the trouser loops. The slot 21 facilitates the needle bar of the trouser loop sewing machine to pass through and sew the trouser loops.

[0026] In this embodiment, the surface of the horizontal section of the connector 16 is provided with a socket 161, and the second guide rail 18 is inserted into the socket 161.

[0027] Specifically, since the second guide rail 18 is inserted into the socket 161, the connector 16 drives the second slider 17 to slide down along the second guide rail 18. Under the action of the socket 161, the movement of the second guide rail 18 and the connector 16 can be prevented from causing contact.

[0028] In this embodiment, the slot 21 of the pressure foot plate 20 in the first pressure foot assembly 13 corresponds to the position of the first opening 5, and the slot 21 of the pressure foot plate 20 in the second pressure foot assembly 14 corresponds to the position of the third opening 126.

[0029] Specifically, since the slots 21 in the first presser foot assembly 13 and the second presser foot assembly 14 correspond to the positions of the first opening 5 and the third opening 126 respectively, it is convenient for the main needle bar and the auxiliary needle bar of the trouser loop machine to pass through the slots 21, the first opening 5 and the third opening 126 respectively to sew the trouser loops.

[0030] In this embodiment, the surface of the movable plate 125 and the surface of the base plate 4 are on the same horizontal plane.

[0031] Specifically, when the servo motor 10 drives the adjusting screw 11 to rotate, the side plate 124 will drive the moving plate 125 to move within the second opening 6. The surface of the moving plate 125 is at the same level as the surface of the base plate 4. Therefore, when the fabric is placed on the surface of the base plate 4, the surface of the fabric will not be uneven due to the moving plate 125. Thus, this method can improve the sewing effect of the trouser loops.

[0032] In this embodiment, a strip-shaped through hole 22 is provided on the surface of the first connecting plate 2, and the lead screw nut 123 is disposed between the first connecting plate 2 and the second connecting plate 3 through the strip-shaped through hole 22. A sensing plate 23 is installed on the back of the lead screw nut 123, and a proximity switch 24 is embedded at one end of the second connecting plate 3 near the servo motor 10.

[0033] Specifically, when the sensor 23 moves to the proximity switch 24, the proximity switch 24 detects the sensor 23, and the control device of the trouser loop machine will control the servo motor 10 to stop working. At this time, the maximum distance between the first presser foot assembly 13 and the second presser foot assembly 14 is reached.

[0034] Working principle: The servo motor 10 drives the adjusting screw 11 to rotate, which in turn drives the second presser foot assembly 14 to move under the action of the adjusting component 12. This method can quickly adjust the distance between the first presser foot assembly 13 and the second presser foot assembly 14. This adjustment method is simple and convenient, and can be adapted to different pant loop sizes. In addition, the servo motor 10, together with the adjusting screw 11, can precisely adjust the position of the second presser foot assembly 14, thereby improving the consistency of pant loop sewing.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic adjustable presser foot device for a trouser loop machine, comprising a fixing plate (1), characterized in that: The side of the fixing plate (1) is fitted with a first connecting plate (2) and a second connecting plate (3). A base plate (4) is fixedly connected to the bottom side of the fixing plate (1). The surface of the base plate (4) is provided with a first opening (5) and a second opening (6). A first fixing block (7) is fixedly connected between the first connecting plate (2) and the second connecting plate (3). A first guide rail (8) is installed on the front of the first connecting plate (2). A second fixing block (9) is fixedly installed on the front of the end of the first connecting plate (2) away from the fixing plate (1). A servo motor (10) is installed on one side of the fixed plate (1). The output shaft of the servo motor (10) extends to the other side of the fixed plate (1) and is fixedly connected to one end of the adjusting screw (11). The other end of the adjusting screw (11) is rotatably connected to the second fixed block (9). An adjusting component (12) is installed on the surface of the adjusting screw (11). The adjusting component (12) is slidably connected to the first guide rail (8). A first pressure foot component (13) and a second pressure foot component (14) are respectively installed on the front of the second fixed block (9) and the adjusting component (12).

2. The automatic adjustable presser foot device for a trouser loop machine according to claim 1, characterized in that: The adjustment assembly (12) includes a first slider (121) slidably mounted on the surface of the first guide rail (8). An adjustment plate (122) is fixedly connected to the front of the first slider (121). A lead screw nut (123) is fixedly connected to the middle of the back of the adjustment plate (122). The lead screw nut (123) is threadedly connected to the adjustment lead screw (11). A side plate (124) is installed at one end of the adjustment plate (122). A movable plate (125) is fixedly installed at the bottom of the side plate (124). The movable plate (125) is movably disposed in the second opening (6). A third opening (126) is opened on the surface of the movable plate (125).

3. The automatic adjustable presser foot device for a trouser loop machine according to claim 1, characterized in that: The first presser foot assembly (13) and the second presser foot assembly (14) have the same structure and are both composed of a pressing cylinder (15), a connecting piece (16), a second slider (17), a second guide rail (18), a connecting block (19), and a presser foot plate (20). The connecting piece (16) is L-shaped. The telescopic end of the pressing cylinder (15) is connected to the horizontal section of the connecting piece (16). The second slider (17) is fixedly installed on the back of the vertical section of the connecting piece (16). The connecting block (19) is fixedly installed on the pressing cylinder (15). The front of the first presser plate (13) is fixedly installed on the front of the second fixed block (9), the second guide rail (18) is slidably connected to the second guide rail (18), the presser foot is fixedly installed on the front of the vertical section of the connector (16), and the surface of the presser foot plate (20) is provided with a slot (21). The presser cylinder (15) in the first presser foot assembly (13) is fixedly connected to the front of the second fixed block (9), and the presser cylinder (15) in the second presser foot assembly (14) is fixedly connected to the front of the adjusting plate (122).

4. The automatic adjustable presser foot device for a trouser loop machine according to claim 3, characterized in that: The surface of the horizontal section of the connector (16) is provided with a socket (161), and the second guide rail (18) is inserted into the socket (161).

5. The automatic adjustable presser foot device for a trouser loop machine according to claim 3, characterized in that: In the first presser foot assembly (13), the slot (21) of the presser foot plate (20) corresponds to the position of the first opening (5), and in the second presser foot assembly (14), the slot (21) of the presser foot plate (20) corresponds to the position of the third opening (126).

6. The automatic adjustable presser foot device for a trouser loop machine according to claim 2, characterized in that: The surface of the movable plate (125) is on the same horizontal plane as the surface of the base plate (4).

7. The automatic adjustable presser foot device for a trouser loop machine according to claim 2, characterized in that: The surface of the first connecting plate (2) is provided with a strip-shaped through hole (22). The lead screw nut (123) passes through the strip-shaped through hole (22) and is located between the first connecting plate (2) and the second connecting plate (3). A sensing plate (23) is installed on the back of the lead screw nut (123). A proximity switch (24) is embedded at one end of the second connecting plate (3) near the servo motor (10).

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