Sewing mechanism for edge stacking and edge covering of bowl opening of mold cup

Abstract

The sewing mechanism comprises a presser foot, a nozzle and a needle plate, the nozzle is used for conveying binding strips and located on the side, away from the needle plate, of the presser foot, one side of the presser foot is fixedly connected with one side of the needle plate, and the other side of the presser foot is connected with one end of the nozzle in a clamped mode. According to the sewing mechanism for edge stacking and edge covering of the bowl opening of the mold cup, the mouth is arranged to be used for conveying the binding tape, and the structures of the presser foot and the needle plate are improved, so that the sewing mechanism can stack the edge of the bowl opening of the mold cup and clamp the binding tape to cover the edge of the bowl opening at the same time, sewing is in place at a time, and the sewing efficiency is improved. The problem that the bowl opening leaks white is effectively solved, and meanwhile the product quality and the working efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of edge-sealing machine technology, specifically to a sewing mechanism for edge-sealing and binding of molded cups and bowls. Background Technology

[0002] In existing technologies, for dark-colored molded cups or non-woven fabrics, since the sides are dark and the middle is light, even after edging with dark thread, there is still white leakage or yellowing of the molded cup at the rim. This problem needs to be solved by increasing the stitch density or using double-stranded thread. However, for molded cups with denser stitch density and thinner rims, the rim is prone to breakage, resulting in compromised bra quality. Furthermore, increasing the stitch density or using double-stranded thread cannot completely solve the problem of white leakage at the rim.

[0003] To effectively solve the problem of white leakage at the rim of the bowl, a gauze strip is added to the edge of the bowl to cover the raw edges, thus effectively solving the problem. However, this requires feeding the gauze strip while the edge of the molded cup is being edged and sewing the strip onto the rim as well. Existing edge-finding machines cannot feed the gauze strip while edge-finding. Utility Model Content

[0004] In view of this, in order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a sewing mechanism for edge binding and edging of molded cups and bowls, which can clamp and place binding strips to edge the edge of the bowl while edge binding the molded cups and bowls, thus solving the problem of white leakage at the rim and improving product quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sewing mechanism for edge binding and hemming of molded cups and bowls includes a presser foot, a nozzle, and a needle plate. The nozzle is used to convey binding strips. The nozzle is located on the side of the presser foot away from the needle plate. One side of the presser foot is fixedly connected to one side of the needle plate, and the other side of the presser foot is engaged with one end of the nozzle.

[0007] By setting a nozzle for conveying the binding strip, the sewing mechanism of this invention can clamp the binding strip to wrap the edge of the bowl while edging the mold cup rim, effectively solving the problem of white leakage at the rim and improving product quality and work efficiency.

[0008] According to a preferred embodiment of the present invention, the nozzle includes a first part and a second part fixedly connected together. The first part includes a first plate and a second plate fixedly connected to one end of the first plate. The second plate is parallel to the horizontal plane. The end of the first plate away from the second plate is fixedly connected to the machine surface of the edge-marking machine. The first plate is arc-shaped and protrudes upward from the plane containing the top surface of the second plate.

[0009] According to a preferred embodiment of the present invention, the second part includes a first arc-shaped plate and a second arc-shaped plate, the second arc-shaped plate being located above the first arc-shaped plate, and the two sides of the second arc-shaped plate being fixedly connected to the two sides of the first arc-shaped plate.

[0010] According to a preferred embodiment of the present invention, the length of the first arc-shaped plate is greater than the length of the second arc-shaped plate, the ends of the first and second arc-shaped plates near the presser foot are flush, and the other end of the first arc-shaped plate is fixedly connected to the top surface of the second plate.

[0011] According to a preferred embodiment of this utility model, the second arc-shaped plate has an opening extending through its thickness direction, the first arc-shaped plate has a first notch at its end away from the first part, and the second arc-shaped plate has a second notch at its end away from the first part. The length of the first notch is less than the length of the second notch, and the orthographic projection of the first notch on the horizontal plane is within the range of the orthographic projection of the second notch on the horizontal plane. The widths of the first and second notches need to be designed according to the width of the binding strip to be conveyed, to ensure that the binding strip of the required width can enter from one end of the channel and exit from the other end, so that the binding strip can be clamped and conveyed simultaneously for edge binding during edge binding.

[0012] According to a preferred embodiment of the present invention, the curvature of the second arc-shaped plate is greater than that of the first arc-shaped plate, and a channel for conveying the binding strip is formed between the bottom surface of the second arc-shaped plate and the top surface of the first arc-shaped plate. This arrangement can ensure the stability of the binding strip conveying, so that the binding strip can be directly mounted on the sewing mechanism while the bowl rim is being edged, ensuring that the edge rim and binding of the bowl rim are completed in one go during sewing, effectively improving work efficiency.

[0013] According to a preferred embodiment of the present invention, the presser foot includes a third plate and a fourth plate fixedly connected. The third plate has a third notch on the side near the nozzle. The fourth plate is inclined and the side of the fourth plate away from the third plate is located above the top surface of the third plate.

[0014] According to a preferred embodiment of the present invention, the openings of the first notch and the second notch face the opening of the third notch, and a fixing plate is fixedly provided on each side of the third notch, the fixing plate being perpendicular to the third plate and located below the third plate.

[0015] According to a preferred embodiment of the present invention, a boss is fixedly provided on the third plate. One side of the boss faces the third notch and is fixedly connected to one end of the two fixed plates. The top surface of the boss is set as an arc-shaped surface and is recessed downward from the top surface of the third plate. The bottom surface of the boss is set as an arc-shaped surface and protrudes downward from the bottom surface of the third plate. The side of the boss near the third notch abuts against the end of the first arc-shaped plate and the second arc-shaped plate near the pressure foot.

[0016] According to a preferred embodiment of the present invention, the needle plate has a fourth notch on the side near the presser foot for the boss to pass through, the bottom surface of the third plate is fixedly connected to the top surface of the needle plate on the side near the presser foot, and the side of the needle plate away from the presser foot is fixedly connected to the machine surface of the edge-marking machine.

[0017] Due to the adoption of the above technical solutions, the advantages of this utility model compared with the prior art are as follows: The sewing mechanism of this utility model for edge binding and edging of molded cups and bowls, by setting a mouth for conveying binding strips and improving the structure of the presser foot and needle plate, enables the sewing mechanism of this utility model to clamp binding strips to edge the edge of the bowl while edge binding the molded cups and bowls, and to complete the sewing in one go, effectively solving the problem of white leakage at the rim of the bowl, while improving product quality and work efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the presser foot of the sewing mechanism in an embodiment of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the mouth of the sewing mechanism in an embodiment of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the mouthpiece and presser foot of the sewing mechanism in an embodiment of this utility model.

[0022] Figure 4 This is a three-dimensional structural diagram of the needle plate of the sewing mechanism in an embodiment of the present utility model;

[0023] Figure 5 This is a top view of the sewing mechanism in an embodiment of the present utility model;

[0024] In the attached diagram, the components are: presser foot - 1, third plate - 11, third notch - 111, fourth plate - 12, fixing plate - 13, boss - 14, nozzle - 2, first plate - 21, second plate - 22, first arc plate - 23, first notch - 231, second arc plate - 24, through-hole - 241, second notch - 242, channel - 25, needle plate - 3, and fourth notch - 31. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0026] See Figures 1 to 5 The sewing mechanism for edge binding and edging of the molded cup bowl in this embodiment includes a presser foot 1, a nozzle 2, and a needle plate 3. One side of the presser foot 1 is fixedly connected to one side of the needle plate 3 and the presser foot 1 is located on the top surface of the needle plate 3. The other side of the presser foot 1 is engaged with one end of the nozzle 2. The nozzle 2 is used to convey binding strips, so that the edge binding machine can bind the bowl mouth with binding strips while edge binding the molded cup bowl, thus preventing the bowl mouth from showing white.

[0027] Furthermore, such as Figure 1 , Figure 3 and Figure 5 As shown, the presser foot 1 includes a third plate 11 and a fourth plate 12 fixedly connected. The third plate 11 has a third notch 111 on the side near the nozzle 2. A fixing plate 13 is fixedly installed on each side of the third notch 111. Both fixing plates 13 are perpendicular to the third plate 11 and are located below the third plate 11. The third plate 11 is horizontally positioned, and the fourth plate 12 is inclined. The side of the fourth plate 12 away from the third plate 11 is located above the top surface of the third plate 11, which facilitates the sewn product to enter from one end of the fourth plate 12 and be pressed under the presser foot 1.

[0028] A boss 14 is also fixedly provided on the third plate 11. One side of the boss 14 faces the third notch 111 and is fixedly connected to one end of the two fixing plates 13. The boss 14 and the two fixing plates 13 together enclose a space for accommodating and fixing one end of the nozzle 2. The top surface of the boss 14 is set as an arc surface and is recessed downward from the top surface of the third plate 11. The bottom surface of the boss 14 is set as an arc surface and is protruded downward from the bottom surface of the third plate 11. This arrangement facilitates the conveying of the binding strip.

[0029] Furthermore, such as Figure 2 , Figure 3 and Figure 5 As shown, the nozzle 2 includes a first part and a second part fixedly connected. The first part includes a first plate 21 and a second plate 22 fixedly connected to one end of the first plate 21. The second plate 22 is parallel to the horizontal plane. The end of the first plate 21 away from the second plate 22 is fixedly connected to the machine surface of the edge-sealing machine. The first plate 21 is arc-shaped and protrudes upward from the plane containing the top surface of the second plate 22. The second part includes a first arc-shaped plate 23 and a second arc-shaped plate 24. The second arc-shaped plate 24 is located above the first arc-shaped plate 23. The two sides of the second arc-shaped plate 24 are fixedly connected to the two sides of the first arc-shaped plate 23. The length of the first arc-shaped plate 23 is greater than the length of the second arc-shaped plate 24. The ends of the first arc-shaped plate 23 and the second arc-shaped plate 24 near the presser foot 1 are flush and abut against the side of the boss 14 near the third notch 111. The other end of the first arc-shaped plate 23 is fixedly connected to the top surface of the second plate 22.

[0030] The curvature of the second arc-shaped plate 24 is greater than that of the first arc-shaped plate 23. A channel 25 for conveying the binding strip is formed between the bottom surface of the second arc-shaped plate 24 and the top surface of the first arc-shaped plate 23. The first arc-shaped plate 23 has a first notch 231 at the end away from the first part, and the second arc-shaped plate 24 has a second notch 241 at the end away from the first part. The openings of the first notch 231 and the second notch 241 face the opening of the third notch 111. The binding strip enters the channel 25 from the end closer to the first part and then comes out between the first notch 231 and the second notch 241 for conveying the binding strip. This arrangement ensures the stability of the binding strip conveying, allowing the binding strip to be directly mounted on the sewing mechanism while the bowl rim is being edged, ensuring that the edge rim and binding of the bowl rim are completed in one go during sewing, effectively improving work efficiency. The length of the first notch 231 is less than the length of the second notch 241, and the orthographic projection of the first notch 231 on the horizontal plane is within the range of the orthographic projection of the second notch 241 on the horizontal plane. This ensures that when the binding strip passes through the first notch 231 and the second notch 241, a portion of the bottom surface of the binding strip exposed outside the channel 25 can rest on the first arc-shaped plate 23 exposed below the second notch 241, which facilitates both the transmission and retrieval of the binding strip. In this embodiment, the width of the first notch 231 and the second notch 241 must ensure that a 1cm wide binding strip can pass through the channel 25.

[0031] In addition, the second arc-shaped plate 24 has a through-hole 241 that extends through its thickness direction, so that when the binding strip enters the channel 25 from one end, it can be pulled from the through-hole 241 to the other end of the channel 25 for adjustment, ensuring that the binding strip can pass through the channel 25.

[0032] Furthermore, such as Figure 4 and Figure 5 As shown, the needle plate 3 has a fourth notch 31 on the side near the presser foot 1 for the boss 14 to pass through. The bottom surface of the third plate 11 is fixedly connected to the top surface of the needle plate 3 on the side near the presser foot 1, and the side of the needle plate 3 away from the presser foot 1 is fixedly connected to the machine surface of the edge-marking machine.

[0033] The sewing mechanism of this utility model fixes one side of the needle plate 3 to the machine surface of the edge-sealing machine. The first arc-shaped plate 23 and the second arc-shaped plate 24 of the second part of the nozzle 2, away from the first part, are inserted into the third notch 111 of the third plate 11 of the presser foot 1. Then, one end of the first plate 21 of the first part of the nozzle 2 is fixed to the machine surface of the edge-sealing machine, ensuring a secure connection between the entire sewing mechanism and the machine surface. The binding strip is then inserted into the channel 25 near the first part of the nozzle 2 and exits from the other end of the channel 25. At the beginning of the edge-sealing process, the end of the binding strip is simultaneously sewn to the edge of the bowl rim. During subsequent edge-sealing processes, the binding strip is continuously fed, allowing for edge-sealing of the molded cup bowl rim while simultaneously using the binding strip for edging.

[0034] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A sewing mechanism for edge binding and edging of molded cups and bowls, characterized in that, It includes a presser foot, a nozzle, and a needle plate. The nozzle is used to convey the binding strip. The nozzle is located on the side of the presser foot away from the needle plate. One side of the presser foot is fixedly connected to one side of the needle plate, and the other side of the presser foot is engaged with one end of the nozzle.

2. The sewing mechanism according to claim 1, characterized in that, The nozzle includes a first part and a second part that are fixedly connected. The first part includes a first plate and a second plate that is fixedly connected to one end of the first plate. The second plate is parallel to the horizontal plane. The end of the first plate away from the second plate is fixedly connected to the machine surface of the edge-marking machine. The first plate is arc-shaped and protrudes upward from the plane where the top surface of the second plate is located.

3. The sewing mechanism according to claim 2, characterized in that, The second part includes a first arc-shaped plate and a second arc-shaped plate. The second arc-shaped plate is located above the first arc-shaped plate, and the two sides of the second arc-shaped plate are fixedly connected to the two sides of the first arc-shaped plate.

4. The sewing mechanism according to claim 3, characterized in that, The length of the first arc-shaped plate is greater than the length of the second arc-shaped plate. The ends of the first and second arc-shaped plates near the presser foot are flush. The other end of the first arc-shaped plate is fixedly connected to the top surface of the second plate.

5. The sewing mechanism according to claim 4, characterized in that, The second arc-shaped plate has an opening that extends through its thickness direction. The first arc-shaped plate has a first notch at the end away from the first part, and the second arc-shaped plate has a second notch at the end away from the first part. The length of the first notch is less than the length of the second notch, and the orthographic projection of the first notch on the horizontal plane is within the range of the orthographic projection of the second notch on the horizontal plane.

6. The sewing mechanism according to claim 5, characterized in that, The curvature of the second arc-shaped plate is greater than that of the first arc-shaped plate, and a channel for conveying the binding strip is formed between the bottom surface of the second arc-shaped plate and the top surface of the first arc-shaped plate.

7. The sewing mechanism according to claim 5, characterized in that, The presser foot includes a third plate and a fourth plate that are fixedly connected. The third plate has a third notch on the side near the nozzle. The fourth plate is inclined and the side of the fourth plate away from the third plate is located above the top surface of the third plate.

8. The sewing mechanism according to claim 7, characterized in that, The openings of the first and second notches face the opening of the third notch, and a fixing plate is fixedly installed on each side of the third notch. The fixing plate is perpendicular to the third plate and is located below the third plate.

9. The sewing mechanism according to claim 8, characterized in that, A boss is fixedly provided on the third plate. One side of the boss faces the third notch and is fixedly connected to one end of the two fixed plates. The top surface of the boss is set as an arc surface and is recessed downward from the top surface of the third plate. The bottom surface of the boss is set as an arc surface and protrudes downward from the bottom surface of the third plate. The side of the boss near the third notch abuts against the end of the first arc plate and the second arc plate near the pressure foot.

10. The sewing mechanism according to claim 9, characterized in that, The needle plate has a fourth notch on the side near the presser foot for the boss to pass through. The bottom surface of the third plate is fixedly connected to the top surface of the needle plate on the side near the presser foot. The side of the needle plate away from the presser foot is fixedly connected to the machine surface of the edge-marking machine.

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