High-precision fabric sewing device

Abstract

The utility model discloses a high-precision fabric sewing device, and belongs to the field of sewing devices. Comprising a sewing machine body, a pushing mechanism and a guiding mechanism, the pushing mechanism comprises a pair of U-shaped frames fixed to the fabric output side of the sewing machine body, the U-shaped frames are arranged side by side, sliding blocks are embedded in the U-shaped frames, a pushing roller is rotationally installed between the sliding blocks, and the guiding mechanism is arranged on the pushing roller. A first motor used for driving the pushing rollers to rotate is installed on one sliding block. The guiding and conveying mechanism comprises a pair of fixing shell arms fixed to the fabric feeding side of the sewing machine body, the fixing shell arms are arranged side by side, a pressing plate is arranged between the pair of fixing shell arms, and the end of the pressing plate is provided with a protruding plate embedded into the fixing shell arms in a sliding mode. Through pushing and elastic force abutting and guiding of the fabric, accumulation of the fabric after sewing is avoided, the fabric can be tightened before sewing, and therefore the sewing precision of the fabric is improved.

Description

Technical Field

[0001] The present application relates to the field of sewing devices, and in particular to a high-precision fabric sewing device. Background Art

[0002] As we all know, the general sewing device is composed of four parts: head, base, transmission and accessories. The head is the main part of the sewing machine, which consists of four mechanisms: piercing, hooking, picking up and feeding, and auxiliary mechanisms such as winding, pressing and dropping teeth. The movements of each mechanism are reasonably coordinated and work in a cycle to sew the sewing materials together.

[0003] In the prior art, the utility model with application number 202320726486.1 discloses a high-precision fabric sewing device, including an operating table, a support frame and a sewing device are provided on the operating table, an adjustment slot is provided on one side of the support frame, the adjustment slot is connected to the other side of the support frame, an electric telescopic rod is provided at the top of the adjustment slot, an adjustment block is provided at the output end of the electric telescopic rod, a rotating motor is provided on one side of the adjustment block, a bearing seat is provided on the other side of the adjustment block, an adjustment shaft is provided on the bearing seat, and an adjustment roller is provided at one end of the adjustment shaft.

[0004] In the above utility model, by controlling the rotating motor, the adjusting roller contacts and pushes the finished fabric on the operating table, causing the fabric to slide from one side of the operating table, thereby automatically removing the finished fabric from the operating table, thereby ensuring the high-precision normal operation of the sewing device. However, in the actual sewing process of the fabric, it is not difficult to find that only the single use of the adjusting roller to rotate and drive the finished fabric to be removed can avoid the accumulation of the finished fabric on the sewing table, but it is difficult to ensure that the fabric will not be wrinkled during the sewing process. There is still the problem of wrinkles and unevenness before sewing the fabric, which affects the sewing effect. In view of this, the present application proposes a high-precision fabric sewing device. Utility Model Content

[0005] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide a high-precision fabric sewing device, including a sewing machine body, a pushing mechanism and a guiding mechanism, the pushing mechanism including a U-shaped frame fixed on the fabric output side of the sewing machine body, a pair of U-shaped frames are arranged side by side, and sliders are embedded in the pair of U-shaped frames, a pushing roller is rotatably installed between the pair of sliders, and a first motor for driving the pushing roller to rotate is installed on one of the sliders; the guiding mechanism includes a fixed shell arm fixed on the fabric feeding side of the sewing machine body, a pair of fixed shell arms are arranged side by side, and a pressure plate is arranged between the pair of fixed shell arms, and a convex plate slidably engaged with the inside of the fixed shell arm is arranged at the end of the pressure plate, and a spring is arranged between the convex plate and the inner top wall of the fixed shell arm.

[0007] Furthermore, a push plate is slidably embedded in the top of the fixed shell arm, the spring is arranged between the push plate and the convex plate, a first screw rod is vertically threaded through the top of the fixed shell arm, the bottom end of the first screw rod is rotatably connected to the push plate, and a rotary block is fixed to the top of the first screw rod.

[0008] Furthermore, a side of the pressure plate away from the pushing roller is curved upward in an arc shape.

[0009] Furthermore, a rubber convex strip is arranged on the outer circumferential surface of the pushing roller along the length direction, and a plurality of the rubber convex strips are arranged around the pushing roller.

[0010] Furthermore, a threaded sleeve is rotatably mounted on the top of the U-shaped frame, a second screw rod is vertically threaded through the threaded sleeve, and the bottom end of the second screw rod is connected to the slider.

[0011] Furthermore, a top plate is fixedly connected between the top ends of a pair of U-shaped frames, a second motor is fixedly installed in the middle of the top plate, a driving shaft of the second motor is connected to a driving shaft, and a transmission belt is installed between the driving shaft and the pair of threaded sleeves.

[0012] Furthermore, the slider is configured as a rectangular structure, and the side wall of the slider is slidably fitted with the inner wall of the U-shaped frame.

[0013] Furthermore, a guide groove is vertically opened on the inner side wall of the U-shaped frame, and the sliding block is slidably engaged with the guide groove.

[0014] The beneficial effect of the present application is that it provides a high-precision fabric sewing device with guiding and pushing functions.

[0015] By setting the pushing mechanism and the guiding mechanism, the fabric passes through the bottom of the pressing plate, passes through the bottom of the pushing roller after being sewn by the sewing machine body, and the second screw is driven to push the slider downward by the thread cooperation with the threaded sleeve, so that the pushing roller presses the sewn fabric against the table of the sewing machine body, and the first motor is started to drive the pushing roller to rotate, and the friction between the rubber convex strip and the fabric is used to continuously push the sewn fabric forward, so that the problem of the fabric after sewing accumulating on the table of the sewing machine body and affecting the sewing effect of the fabric can be avoided. In addition, because the fabric before sewing is pushed by the elastic force of the spring and is pressed against the table of the sewing machine body by the elastic force of the pressing plate, the fabric can be tightened as much as possible before sewing without affecting the continuous pushing and sewing of the fabric, so as to avoid the problem of wrinkles and unevenness of the fabric before sewing that affect the sewing effect. The overall structure is reasonable, and the fabric can be pushed, pressed and guided by the elastic force to avoid the accumulation of the fabric after sewing and the tightening of the fabric before sewing, thereby improving the sewing accuracy of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The drawings and descriptions of the exemplary embodiments of this application are used to explain this application and do not constitute an improper limitation on this application.

[0017] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0018] In the attached picture:

[0019] Figure 1 This is a schematic diagram of the overall structure of this application;

[0020] Figure 2 This is a schematic diagram of the structure of the guide mechanism for this application;

[0021] Figure 3 This is a schematic diagram of the structure of the fixed shell arm of this application;

[0022] Figure 4 This is a schematic diagram of the structure of the organization that pushes this application;

[0023] Figure 5 This is a schematic diagram of the structure of the U-shaped frame of this application.

[0024] Reference numerals:

[0025] 1. Sewing machine body; 2. Push mechanism; 3. Guide mechanism; 4. Fixed shell arm; 5. Press plate; 6. Convex plate; 7. Spring; 8. Push plate; 9. First screw; 10. Rotary block; 11. U-shaped frame; 12. Sliding block; 13. Push roller; 14. Rubber convex strip; 15. First motor; 16. Second screw; 17. Threaded sleeve; 18. Top plate; 19. Second motor; 20. Driving shaft; 21. Transmission belt; 22. Guide groove. DETAILED DESCRIPTION

[0026] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0027] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0028] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0029] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0030] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0031] Reference Figure 1-Figure 5A high-precision fabric sewing device comprises a sewing machine body 1, a pushing mechanism 2 and a guiding mechanism 3. The pushing mechanism 2 comprises a U-shaped frame 11 fixed on the fabric output side of the sewing machine body 1. A pair of U-shaped frames 11 are arranged side by side. Slide blocks 12 are embedded in the pair of U-shaped frames 11. A pushing roller 13 is rotatably installed between the pair of slide blocks 12. A first motor 15 for driving the pushing roller 13 to rotate is installed on one of the slide blocks 12. In addition, a threaded sleeve 17 is rotatably installed on the top of the U-shaped frame 11. A second screw rod 16 is vertically threaded through the threaded sleeve 17. The bottom end of the second screw rod 16 is connected to the slide block 12. By twisting the threaded sleeve 17 to rotate, the second screw rod 16 is driven to push the slide block 12 downward, so that the pushing roller 13 presses the sewn fabric against the table of the sewing machine body 1. The first motor 15 is started to drive the pushing roller 13 to rotate, and the sewn fabric is continuously pushed forward, which can avoid the problem that the sewn fabric is accumulated on the table of the sewing machine body 1 and affects the sewing effect of the fabric.

[0032] In this embodiment, a rubber ridge 14 is provided on the outer circumferential surface of the push roller 13 along the length direction, and multiple rubber ridges 14 are provided around the push roller 13. The rubber ridges 14 can increase the friction between the push roller 13 and the fabric, thereby facilitating the push roller 13 to rotate and push the fabric forward.

[0033] Furthermore, a top plate 18 is fixedly connected between the tops of a pair of U-shaped frames 11, a second motor 19 is fixedly installed in the middle of the top plate 18, a driving shaft of the second motor 19 is connected to a driving shaft 20, and a transmission belt 21 is installed between the driving shaft 20 and a pair of threaded sleeves 17. By starting the second motor 19 to drive the driving shaft 20 to rotate, the driving shaft 20 drives the pair of threaded sleeves 17 to rotate synchronously under the transmission of the transmission belt 21, and the second screw 16 can be driven to push the slider 12 downward, so that the push roller 13 is used to push the fabric. The slider 12 is set as a rectangular structure, the side wall of the slider 12 is slidably fitted with the inner wall of the U-shaped frame 11, and a guide groove 22 is vertically opened on the inner wall of the U-shaped frame 11. The slider 12 is slidably fitted with the guide groove 22, which is conducive to the conveying movement of the slider 12.

[0034] In a further embodiment, the guiding mechanism 3 includes a fixed shell arm 4 fixed on the fabric feeding side of the sewing machine body 1, a pair of fixed shell arms 4 are arranged side by side, a pressure plate 5 is arranged between the pair of fixed shell arms 4, and a convex plate 6 is arranged at the end of the pressure plate 5 for sliding engagement with the inside of the fixed shell arm 4, a spring 7 is arranged between the convex plate 6 and the inner top wall of the fixed shell arm 4, and the fabric passes between the pressure plate 5 and the table top of the sewing machine body 1 before sewing. The fabric before sewing is pushed by the elastic force of the spring 7 and is pressed against the table top of the sewing machine body 1 by the elastic force of the pressure plate 5, and the push roller 13 rotates to push the fabric after sewing. Under the premise of not affecting the continuous pushing and sewing of the fabric, the fabric can be stretched as tight as possible before sewing, thereby avoiding the problem of wrinkles and unevenness of the fabric before sewing that affect the sewing effect.

[0035] In this embodiment, a push plate 8 is slidably embedded in the top of the fixed shell arm 4, a spring 7 is arranged between the push plate 8 and the convex plate 6, a first screw 9 is vertically threaded through the top of the fixed shell arm 4, the bottom of the first screw 9 is rotatably connected with the push plate 8, a rotary block 10 is fixed to the top of the first screw 9, and the first screw 9 is driven by turning the rotary block 10 to push the push plate 8 downward, which can adjust the compression force of the spring 7, which is conducive to the tightening of the fabric. The side of the pressing plate 5 away from the pushing roller 13 is curved upward in an arc shape, which can reduce the wear on the fabric.

[0036] When the high-precision fabric sewing device is in use, the fabric passes under the pressing plate 5, and then passes under the push roller 13 after being sewn by the sewing machine body 1. The second motor 19 is started to drive the driving shaft 20 to rotate. Under the transmission of the transmission belt 21, the driving shaft 20 drives a pair of threaded sleeves 17 to rotate synchronously. The threaded sleeve 17 drives the second screw 16 to push the slider 12 downward, so that the push roller 13 presses the sewn fabric against the table of the sewing machine body 1. Then the first motor 15 is started to drive the push roller 13 to rotate, and the friction between the rubber convex strip 14 and the fabric is used to continuously push the sewn fabric forward. Pushing can avoid the problem of accumulation of fabrics on the table of the sewing machine body 1 after sewing, which affects the sewing effect of the fabrics. In addition, since the fabrics before sewing are pushed by the elastic force of the spring 7, the elastic force of the pressing plate 5 is pressed against the table of the sewing machine body 1. Therefore, under the premise of not affecting the continuous pushing and sewing of the fabrics, the fabrics can be stretched as tight as possible before sewing, avoiding the problem of wrinkles and unevenness of the fabrics before sewing, which affects the sewing effect. The overall structure is reasonable, and the fabrics can be pushed and guided by the elastic force, which can avoid the accumulation of fabrics after sewing and can make the fabrics tight before sewing, thereby improving the sewing accuracy of the fabrics.

[0037] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A high-precision fabric sewing device, comprising a sewing machine body (1), a pushing mechanism (2) and a guiding mechanism (3), characterized in that: The pushing mechanism (2) comprises a U-shaped frame (11) fixed to the fabric output side of the sewing machine body (1), a pair of the U-shaped frames (11) are arranged side by side, a slider (12) is embedded in each of the pair of the U-shaped frames (11), a pushing roller (13) is rotatably mounted between the pair of the sliders (12), and a first motor (15) for driving the pushing roller (13) to rotate is mounted on one of the sliders (12); The guide mechanism (3) comprises a fixed shell arm (4) fixed to the fabric feeding side of the sewing machine body (1), a pair of fixed shell arms (4) are arranged side by side, a pressure plate (5) is arranged between the pair of fixed shell arms (4), a convex plate (6) slidably engaged with the inside of the fixed shell arm (4) is arranged at the end of the pressure plate (5), and a spring (7) is arranged between the convex plate (6) and the inner top wall of the fixed shell arm (4).

2. The high-precision fabric sewing device according to claim 1, characterized in that: A push plate (8) is slidably embedded in the top of the fixed shell arm (4), and the spring (7) is arranged between the push plate (8) and the convex plate (6). A first screw rod (9) is vertically threaded through the top of the fixed shell arm (4), and the bottom end of the first screw rod (9) is rotatably connected to the push plate (8), and a rotary block (10) is fixed to the top of the first screw rod (9).

3. The high-precision fabric sewing device according to claim 1, characterized in that: The side of the pressing plate (5) away from the pushing roller (13) is curved upward in an arc shape.

4. The high-precision fabric sewing device according to claim 1, characterized in that: A rubber convex strip (14) is arranged on the outer circumferential surface of the pushing roller (13) along the length direction, and a plurality of the rubber convex strips (14) are arranged around the pushing roller (13).

5. The high-precision fabric sewing device according to claim 1, characterized in that: A threaded sleeve (17) is rotatably mounted on the top of the U-shaped frame (11), a second screw rod (16) is vertically threaded through the threaded sleeve (17), and the bottom end of the second screw rod (16) is connected to the slider (12).

6. The high-precision fabric sewing device according to claim 5, characterized in that: A top plate (18) is fixedly connected between the top ends of a pair of U-shaped frames (11), a second motor (19) is fixedly installed in the middle of the top plate (18), a driving shaft of the second motor (19) is connected to a driving shaft (20), and a transmission belt (21) is sleeved between the driving shaft (20) and the pair of threaded sleeves (17).

7. The high-precision fabric sewing device according to claim 1, characterized in that: The sliding block (12) is configured as a rectangular structure, and the side wall of the sliding block (12) is slidably fitted with the inner wall of the U-shaped frame (11).

8. The high-precision fabric sewing device according to claim 1, characterized in that: A guide groove (22) is vertically provided on the inner side wall of the U-shaped frame (11), and the sliding block (12) is slidably engaged with the guide groove (22).

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