Cloth guiding device for sewing machine

Abstract

The utility model provides a cloth guide device for a sewing machine, which comprises an operating platform, a sewing machine main body is fixedly mounted at the top of the operating platform, a moving mechanism is arranged at the top of the operating platform, a guide plate is connected onto the moving mechanism, reciprocating movement of the guide plate is realized through the moving mechanism, and cloth is placed on the guide plate. A cloth pressing mechanism is arranged on the guide plate; the moving mechanism comprises a first sliding groove formed in the top of the operation table, a first sliding block is slidably embedded in the inner surface wall of the first sliding groove, a first threaded rod is in threaded connection with the inner surface wall of the first sliding block, a servo motor is fixedly connected to one side of the outer wall of the first threaded rod, and two first sliding rails are fixedly installed at the top of the operation table; and a guide plate is movably arranged between the outer surface walls of the two first sliding rails in a sleeving manner. According to the cloth guiding and conveying device, sewing cloth can be effectively and accurately guided and conveyed, in the whole process, manual cloth pushing is not needed, errors and cloth deviation caused by human factors are avoided, and the sewing accuracy and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machine accessories, in particular to a cloth guiding device for a sewing machine. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing materials are interwoven or sewn together. The sewing machine can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, and products such as leather, plastic, and paper. The stitches are neat, beautiful, flat, and firm. The sewing speed is fast and the use is easy. It has also spawned art forms such as hand-push embroidery and computer embroidery.

[0003] Existing sewing machines usually do not have guide devices, but rely on manual pushing of fabrics. Manual pushing of fabrics may not ensure smooth and accurate transmission of fabrics, which may cause fabrics to deviate or wrinkle during the sewing process, thereby affecting the quality and aesthetics of the stitching. Utility Model Content

[0004] According to the above-mentioned device, when the sewing machine is in use, since the sewing machine relies on manual pushing of the cloth, the cloth will be offset or wrinkled during the sewing process, resulting in a technical problem that affects the sewing quality and aesthetics, and a cloth guide device for a sewing machine is provided. The technical means adopted by the utility model are as follows:

[0005] A cloth guide device for a sewing machine comprises: an operating table, a sewing machine body is fixedly mounted on the top of the operating table, a moving mechanism is arranged on the top of the operating table, a guide plate is connected to the moving mechanism, the reciprocating movement of the guide plate is achieved by the moving mechanism, the cloth is placed on the guide plate, and a cloth pressing mechanism is arranged on the guide plate;

[0006] The moving mechanism includes a first slide groove opened on the top of the operating table, a first slider is slidably embedded in the inner surface wall of the first slide groove, a first threaded rod is threadedly connected to the inner surface wall of the first slider, a servo motor is fixedly connected to one side of the outer wall of the first threaded rod, the servo motor is installed on the operating table, two first slide rails are fixedly installed on the top of the operating table, and the guide plate is movably sleeved between the outer walls of the two first slide rails.

[0007] Furthermore, the cloth pressing mechanism includes two groups of pressing structures, which are arranged on both sides of the guide plate, and each group of the pressing structures includes a second slider, a first fixed frame, a first electric push rod and a first pressure plate, the second slider is connected to the guide plate, the first fixed frame is fixedly installed on the top of the second slider, the first electric push rod is fixedly installed on the top of the first fixed frame, and the first pressure plate is fixedly connected to the telescopic end of the first electric push rod.

[0008] Furthermore, the fabric pressing mechanism also includes a second fixing frame fixedly installed on the top of the guide plate, a second electric push rod is fixedly installed on the top of the second fixing frame, a telescopic end of the second electric push rod is fixedly connected to a second pressing plate, and the second pressing plate is located above the edge portion of the fabric to be sewn.

[0009] Furthermore, two second sliding grooves are opened on the top of the guide plate, and two second sliding blocks are respectively slidably embedded in the inner walls of the two second sliding grooves, the inner walls of the two second sliding blocks are threadedly connected with second threaded rods, the two second threaded rods are threadedly connected to the guide plate, and one side of the outer wall of the two second threaded rods is fixedly connected with a handwheel.

[0010] Furthermore, a third fixing frame is fixedly mounted on the sewing machine body, and the third fixing frame is connected to a guide wheel via a connecting structure, and the guide wheel is located above the cloth.

[0011] Furthermore, the connecting structure includes a nut, a third threaded rod, a mounting seat and a movable rod, the nut movably contacts the top of the third fixing frame, the third threaded rod passes through the top of the third fixing frame and is threadedly connected to the inner wall of the nut, the bottom of the third threaded rod is fixedly connected to the mounting seat, movable grooves are opened on both sides of the outer wall of the mounting seat, the movable rod is movably inserted into the inner walls of the two movable grooves, and the guide wheel is movably sleeved on the outer wall of the movable rod.

[0012] Furthermore, a controller is fixedly mounted on one side of the outer wall of the sewing machine body.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The utility model can effectively guide and transmit the sewing fabric accurately through the interaction of the various components of the device. During the whole process, there is no need to push the fabric manually, thereby avoiding errors and fabric deviation caused by human factors, thereby improving the accuracy and quality of sewing. The guide plate can fix fabrics of various sizes, thereby meeting different sewing needs, improving the versatility and practicality of the equipment, and can effectively fix the edges of the fabric for sewing, preventing the fabric from wrinkling or shifting during the sewing process, and ensuring the flatness and aesthetics of the sewing.

[0015] 2. The utility model enables the guide wheel to roll smoothly under the interaction of the various components of the device, guiding the fabric to be smoothly transmitted in the sewing machine, thereby ensuring the stability and continuity of the fabric. The device can also adjust the height of the guide wheel to adapt to fabrics of different thicknesses and types, ensuring that the guide wheel always maintains proper contact with the fabric surface.

[0016] Based on the above reasons, the utility model can be widely promoted in the fields of cloth guiding and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 The utility model provides a three-dimensional exploded diagram of the main structure of a cloth guiding device for a sewing machine.

[0019] Figure 2 The utility model provides a three-dimensional exploded view of part of the structure of a cloth guiding device for a sewing machine.

[0020] Figure 3 The utility model provides a top-down stereoscopic exploded view of a partial structure of a cloth guiding device for a sewing machine.

[0021] Figure 4 The utility model provides a side-view stereoscopic exploded view of a partial structure of a cloth guiding device for a sewing machine.

[0022] In the figure: 1. operating table; 2. first slide groove; 3. first slider; 4. first threaded rod; 5. servo motor; 6. first slide rail; 7. guide plate; 8. second slide groove; 9. second slider; 10. second threaded rod; 11. hand wheel; 12. first fixed frame; 13. first electric push rod; 14. first pressure plate; 15. second fixed frame; 16. second electric push rod; 17. second pressure plate; 18. sewing machine body; 19. controller; 20. third fixed frame; 21. nut; 22. third threaded rod; 23. mounting seat; 24. movable groove; 25. movable rod; 26. guide wheel. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] like Figure 1-Figure 4As shown, the utility model provides a cloth guiding device for a sewing machine, comprising an operating table 1, a first slide groove 2 is provided at the bottom of the operating table 1, a first slider 3 is slidably embedded in the inner surface wall of the first slide groove 2, a first threaded rod 4 is threadedly connected to the inner surface wall of the first slider 3, a servo motor 5 is fixedly connected to one side of the outer wall of the first threaded rod 4, two first slide rails 6 are fixedly installed on the top of the operating table 1, a guide plate 7 is movably sleeved between the outer walls of the two first slide rails 6, two second slide grooves 8 are provided on the top of the guide plate 7, second sliders 9 are slidably embedded in the inner surface walls of the two second slide grooves 8, and the two The inner surface wall of each second sliding block 9 is threadedly connected with a second threaded rod 10, one side of the outer wall of the two second threaded rods 10 is fixedly connected with a hand wheel 11, the top of the two second sliding blocks 9 is fixedly installed with a first fixing frame 12, the top of the two first fixing frames 12 is fixedly installed with a first electric push rod 13, the telescopic ends of the two first electric push rods 13 are fixedly connected with a first pressure plate 14, the top of the guide plate 7 is fixedly installed with a second fixing frame 15, the top of the second fixing frame 15 is fixedly installed with a second electric push rod 16, and the telescopic end of the second electric push rod 16 is fixedly connected with a second pressure plate 17. In the utility model, through the interaction of the various components of the device, the sewing fabric can be effectively guided and transmitted accurately. During the whole process, there is no need to push the fabric manually, thereby avoiding errors and fabric deviation caused by human factors, thereby improving the accuracy and quality of sewing. The guide plate can fix fabrics of various sizes, thereby meeting different sewing needs, improving the versatility and practicality of the equipment, and can effectively fix the edges of the fabric for sewing, preventing the fabric from wrinkling or shifting during the sewing process, and ensuring the flatness and aesthetics of the sewing.

[0026] The effect achieved by the entire embodiment 1 is that, first, the cloth is placed flatly on the top of the guide plate 7, and then, according to the length of the cloth, the two hand wheels 11 are rotated respectively, and the two hand wheels 11 will drive the two second sliders 9 to move on the inner surface walls of the two second slide grooves 8, and the movement of the two second sliders 9 will further drive the two first fixing frames 12 to move in the front-to-back direction until the two first fixing frames 12 reach the top positions at both ends of the cloth, at which time the controller 19 will start the two first electric push rods 13, and the telescopic ends of the two first electric push rods 13 will move downward, driving the first pressing plate 14 to press the cloth downward, thereby fixing the cloth, and next, the controller 19 will start the second electric push rod 16, and the telescopic end of the second electric push rod 16 will drive the second pressing plate 17 to move downward, this time to fix the edge portion of the cloth to be sewn, to ensure During the sewing process, the fabric will not deviate or slide. After completing the above-mentioned fixing steps, the controller 19 will start the servo motor 5, and the output end of the servo motor 5 will drive the first threaded rod 4 to start rotating. Since the first threaded rod 4 is connected to the first slider 3 by a thread, the rotation of the first threaded rod 4 will be converted into the forward and backward movement of the first slider 3. The movement of the first slider 3 will drive the guide plate 7 and the fabric fixed on the top of the guide plate 7 to move forward and backward together. In this way, the guiding device realizes automatic guiding and transmission of the fabric, ensuring that the fabric can move smoothly along the predetermined path during the sewing process, thereby reducing the dependence on manual operation and reducing errors caused by human factors. At the same time, since the fabric is effectively fixed during the sewing process, the risk of fabric deviation or wrinkles during the sewing process is also reduced, further improving the quality of sewing.

[0027] Example 2

[0028] like Figure 2-Figure 4 As shown, a sewing machine body 18 is fixedly installed on the top of the operating table 1, a controller 19 (using an existing controller) is fixedly installed on one side of the outer wall of the sewing machine body 18, a third fixing frame 20 is fixedly installed on the top of the sewing machine body 18, a nut 21 is movably contacted on the top of the third fixing frame 20, a third threaded rod 22 is threadedly connected to the inner wall of the nut 21, a mounting seat 23 is fixedly connected to the bottom of the third threaded rod 22, a movable groove 24 is opened on one side of the outer wall of the mounting seat 23, movable rods 25 are movably inserted into the inner walls of the two movable grooves 24, and a guide wheel 26 is movably sleeved on the outer wall of the movable rod 25.

[0029] The effect achieved by the entire embodiment 2 is that when the cloth is firmly fixed, the staff can loosen the nut 21, and the inner wall of the nut 21 is threadedly connected with the third threaded rod 22, so that the third threaded rod 22 can be moved, and the mounting seat 23 is fixedly connected through the bottom of the third threaded rod 22, and a movable groove 24 is opened on one side of the outer wall of the mounting seat 23, and the inner wall of the movable groove 24 is movably sleeved with a movable rod 25, and the outer wall of the movable rod 25 is movably sleeved with a guide wheel 26. The staff can adjust the height of the mounting seat 23 by moving the third threaded rod 22 according to the thickness of the cloth, and then adjust the height of the guide wheel 26. The purpose of doing this is to adapt to cloths of different thicknesses and ensure that the guide wheel 26 can fit tightly above the cloth to play an effective guiding role. In the process of cloth conveying and sewing, the guide wheel 26 will roll with the movement of the cloth to help the cloth pass through the sewing area smoothly. The guide wheel 26 can ensure that the cloth remains flat during the conveying process to avoid wrinkles or deviations, thereby improving the quality and efficiency of sewing.

[0030] Working principle of the utility model: after the equipment is powered on, the staff first loosens the nut 21, and then adjusts the height of the mounting seat 23 by moving the third threaded rod 22 according to the thickness of the cloth, and then accurately adjusts the height of the guide wheel 26. This method ensures that the guide wheel 26 can fit tightly and stably on top of the cloth to meet the transmission needs of cloths of different thicknesses. Next, the staff places the cloth flatly on the top of the guide plate 7 to ensure that the contact surface between the cloth and the guide plate 7 is flat and stable. Then, according to the length of the cloth, the staff rotates the two hand wheels 11 respectively, and the two hand wheels 11 respectively drive the two second threaded rods 10 to rotate. Since the outer walls of the two second threaded rods 10 are threadedly connected with the second sliders 9, the rotation of the two hand wheels 11 can respectively drive the two second sliders 9 to move forward and backward. As the two second sliders 9 move, they respectively drive the two first fixed frames 12 to move in the front and rear directions until the two first fixed frames 12 accurately reach the top positions at both ends of the cloth. At this time, the controller 19 is connected After receiving the signal, the two first electric push rods 13 are started. The telescopic ends of the two first electric push rods 13 move downward rapidly, pushing the first pressing plate 14 to fit tightly against the top of the cloth, thereby achieving preliminary fixation of the cloth. Subsequently, the controller 19 starts the second electric push rod 16 again, and the telescopic end of the second electric push rod 16 drives the second pressing plate 17 to move downward. This time, the edge portion of the cloth to be sewn is fixed to ensure that the cloth will not shift or wrinkle during the sewing process. After completing the above fixing steps, the controller 19 starts the servo motor 5, and the output end of the servo motor 5 drives the first threaded rod 4 to start rotating. Since the outer wall of the first threaded rod 4 is connected to the inner wall of the first slider 3 by a thread, the rotation of the first threaded rod 4 is converted into the forward and backward movement of the first slider 3. As the first slider 3 moves, the guide plate 7 and the cloth fixed on its top also move forward and backward together. In this process, the guide wheel 26 plays a key guiding role. It rolls with the movement of the cloth, helping the cloth to maintain a smooth and accurate transmission path during the sewing process.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A cloth guiding device for a sewing machine, characterized in that: include: An operating table (1), a sewing machine body (18) is fixedly mounted on the top of the operating table (1), a moving mechanism is provided on the top of the operating table (1), a guide plate (7) is connected to the moving mechanism, the guide plate (7) is reciprocated by the moving mechanism, a cloth is placed on the guide plate (7), and a cloth pressing mechanism is provided on the guide plate (7); The moving mechanism comprises a first slide groove (2) provided at the top of the operating table (1); a first slider (3) is slidably embedded in the inner surface wall of the first slide groove (2); a first threaded rod (4) is threadedly connected to the inner surface wall of the first slider (3); a servo motor (5) is fixedly connected to one side of the outer wall of the first threaded rod (4); the servo motor (5) is installed on the operating table (1); two first slide rails (6) are fixedly installed on the top of the operating table (1); and the guide plate (7) is movably sleeved between the outer surfaces of the two first slide rails (6).

2. The cloth guide device for a sewing machine according to claim 1, characterized in that: The cloth pressing mechanism comprises two groups of pressing structures, which are arranged on both sides of the guide plate (7), and each group of the pressing structures comprises a second slider (9), a first fixing frame (12), a first electric push rod (13) and a first pressing plate (14), wherein the second slider (9) is connected to the guide plate (7), the first fixing frame (12) is fixedly mounted on the top of the second slider (9), the first electric push rod (13) is fixedly mounted on the top of the first fixing frame (12), and the first pressing plate (14) is fixedly connected to the telescopic end of the first electric push rod (13).

3. The cloth guiding device for a sewing machine according to claim 1 or 2, characterized in that: The cloth pressing mechanism also includes a second fixing frame (15) fixedly mounted on the top of the guide plate (7), a second electric push rod (16) fixedly mounted on the top of the second fixing frame (15), a second pressing plate (17) fixedly connected to the telescopic end of the second electric push rod (16), and the second pressing plate (17) is located above the edge portion of the cloth to be sewn.

4. The cloth guide device for a sewing machine according to claim 2, characterized in that: Two second slide grooves (8) are provided on the top of the guide plate (7), and two second sliding blocks (9) are respectively slidably embedded in the inner surface walls of the two second slide grooves (8), the inner surface walls of the two second sliding blocks (9) are both threadedly connected with second threaded rods (10), the two second threaded rods (10) are both threadedly connected to the guide plate (7), and one side of the outer wall of the two second threaded rods (10) is fixedly connected with a hand wheel (11).

5. The cloth guide device for a sewing machine according to claim 1, characterized in that: A third fixing frame (20) is fixedly mounted on the sewing machine body (18); the third fixing frame (20) is connected to a guide wheel (26) via a connecting structure; the guide wheel (26) is located above the cloth.

6. The cloth guide device for a sewing machine according to claim 5, characterized in that: The connection structure comprises a nut (21), a third threaded rod (22), a mounting seat (23) and a movable rod (25); the nut (21) is movably in contact with the top of the third fixing frame (20); the third threaded rod (22) passes through the top of the third fixing frame (20) and is threadedly connected to the inner surface wall of the nut (21); the bottom of the third threaded rod (22) is fixedly connected to the mounting seat (23); movable grooves (24) are provided on both sides of the outer wall of the mounting seat (23); the movable rod (25) is movably inserted into the inner surface walls of the two movable grooves (24); and the guide wheel (26) is movably sleeved on the outer surface wall of the movable rod (25).

7. The cloth guide device for a sewing machine according to claim 1, characterized in that: A controller (19) is fixedly mounted on one side of the outer wall of the sewing machine body (18).

Images