A material pressing mechanism for a sewing machine

Abstract

The utility model relates to the technical field of press materials for sewing machines, specifically a press material mechanism for sewing machines, comprising a presser foot body, a needle groove is provided on the front side of the presser foot body, a base is fixed on the top of the presser foot body, an assembly seat is assembled on the upper end of the base, an assembly groove is provided on the upper part of the assembly seat, and assembly holes are provided on both sides of the assembly groove, an expansion edge 1 and an expansion edge 2 are provided on both sides of the presser foot body, the expansion edge 1 and the expansion edge 2 are respectively assembled on the left and right sides of the presser foot body, a fine-tuning cylinder is fixed on the bottom of the assembly seat, and the fine-tuning cylinder is inserted inside the base. The utility model is convenient for extending and fine-tuning to both sides according to the needs of use, and through the expansion edge 1 and the expansion edge 2, it is convenient to expand the two sides of the presser foot body through the expansion edge 1 and the expansion edge 2 as needed when sewing cloth, and when using press materials, it is convenient to fine-tune the setting according to the thickness of the sewing cloth, making the use of press materials more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of material pressing for sewing machines, in particular to a material pressing mechanism for sewing machines. Background Art

[0002] Sewing machines are widely used. They can sew cotton, linen, silk, wool, artificial fiber and other fabrics and leather, plastic, paper and other products, so that one or more layers of sewing materials are interwoven or sewn together. The stitches are neat, beautiful, flat and firm. The sewing speed is fast and easy to use. The pressing mechanism of the sewing machine refers to the component that applies pressure on the surface of the cloth. It is often used when sewing cloth, etc., and it is also called the presser foot.

[0003] In this regard, China has applied for patent number: CN212834428U, which discloses a material pressing mechanism for a sewing machine, wherein the upper surface of the presser foot is integrally installed with a first connecting seat and a second connecting seat from front to back, and a needle groove is provided on the upper surface of the presser foot, a mounting seat is installed inside the first connecting seat and the second connecting seat, a mounting groove is provided on the upper surface of the mounting seat, mounting components are installed on both sides of the mounting seat, and a clamping component is symmetrically installed on the front and rear surfaces of the presser foot. By setting the mounting component, the presser foot and the mounting seat can be quickly installed and disassembled, greatly improving the installation and disassembly speed, and the first limiting column and the second limiting column are both provided with reinforcing ribs inside, which can effectively improve the stability of the installation, and by setting the clamping component, the fabric can be effectively clamped to prevent displacement and loss caused by insufficient clamping force;

[0004] However, the existing pressing mechanism is inconvenient to extend and fine-tune to both sides according to the use needs, which affects the use effect;

[0005] Therefore, in order to solve the above-mentioned problem, a material pressing mechanism for a sewing machine is proposed. Utility Model Content

[0006] The utility model aims to provide a material pressing mechanism for a sewing machine, so as to solve the problem that the existing material pressing mechanism proposed in the above background technology is inconvenient to extend and fine-tune to both sides according to the use needs, which affects the use effect.

[0007] To achieve the above object, the utility model provides the following technical solution: a presser mechanism for a sewing machine, comprising a presser foot body, a needle groove is provided on the front side of the presser foot body, a base is fixed on the top of the presser foot body, an assembly seat is mounted on the upper end of the base, an assembly groove is provided on the upper part of the assembly seat, and assembly holes are provided on both side walls of the assembly groove;

[0008] The presser foot body is provided with an extended edge 1 and an extended edge 2 on both sides, and the extended edge 1 and the extended edge 2 are respectively assembled on the left and right sides of the presser foot body, and a fine-tuning cylinder is fixed at the bottom of the assembly seat, and the fine-tuning cylinder is inserted inside the base.

[0009] Preferably, slide one is assembled on the inner side of the expanded edge one, and the slide one is inserted in the left side wall of the presser foot body; slide two is assembled on the inner side of the expanded edge two, and the slide two is inserted in the right side wall of the presser foot body; limit rings are fixed on the inner ends of slide one and slide two, and a spring one is arranged between the limit ring and the inner wall of the presser foot body; two groups of springs one are respectively sleeved on the surfaces of slide one and slide two.

[0010] Preferably, support stud one and support stud two are respectively fixed to the expansion edge one and the middle part of the inner side of the fine-tuning tube, and support stud one and support stud two are respectively inserted through the left and right sides of the presser foot body, and fastening nuts are threadedly sleeved on the surfaces of support stud one and support stud two, and the two groups of fastening nuts are respectively located between expansion edge one and expansion edge two and the outer wall of the presser foot body.

[0011] Preferably, the front outer walls of the expansion edge 1 and the expansion edge 2 are arranged in an arc shape, and rubber pads are glued to the bottom of the expansion edge 1 and the expansion edge 2.

[0012] Preferably, a limiting inner column is inserted through the interior of the fine-tuning cylinder, the limiting inner column is fixed to the inner bottom wall of the base, a locking pin is threadedly inserted into the upper side wall of the base, the inner end of the locking pin is clamped on the outer wall of the fine-tuning cylinder, a locking pin groove corresponding to the locking pin is formed on the outer wall of the fine-tuning cylinder, and a hidden groove corresponding to the outer end of the locking pin is formed on the outer wall of the base.

[0013] Preferably, a limiting cap is fixed on the top of the limiting inner column, the limiting cap is clamped in the fine-tuning cylinder, and a second spring is arranged between the bottom of the limiting cap and the inside of the fine-tuning cylinder, and the second spring is sleeved on the surface of the limiting inner column.

[0014] Preferably, the presser foot main body is composed of a presser foot upper shell and a presser foot lower shell which are connected up and down, and a limited insert is integrally provided at the bottom of the presser foot upper shell, and the limited insert is inserted inside the side wall of the presser foot lower shell, and a limited slot corresponding to the limited insert is opened inside the side wall of the presser foot lower shell, screw groove seats are provided on the presser foot lower shell and the inner side walls of the presser foot upper shell, and auxiliary heads are integrally provided on both sides of the front end of the presser foot lower shell.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model is convenient for extension and fine-tuning to both sides according to the use needs, making the use more convenient and efficient;

[0016] 1. The utility model is provided with an expansion edge 1 and an expansion edge 2, so that when sewing cloth, the two sides of the presser foot body can be expanded through the expansion edge 1 and the expansion edge 2 as needed, making the use of the presser more convenient and efficient. Through this design, the convenience and practicality of the presser mechanism are improved.

[0017] 2. The utility model is provided with a fine-tuning cylinder and a limiting inner column, which facilitates fine-tuning settings according to the thickness of the sewing cloth when using the material pressing device, making the use of the material pressing device more convenient. Through this design, the convenience and practicality of the material pressing mechanism are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a top view cross section of the structure of the utility model;

[0019] Figure 2 It is a schematic side cross-sectional view of the structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the utility model;

[0021] Figure 4 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 5 For this utility model Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0023] In the figure: 100, presser foot body; 101, needle groove; 102, base; 103, assembly seat; 104, assembly groove; 105, assembly hole; 106, presser foot upper shell; 107, presser foot lower shell; 108, limit insert; 109, limit slot; 110, expansion edge one; 111, expansion edge two; 112, slide one; 113, slide two; 114, support stud one; 115, support stud two; 116, limit ring; 117, spring one; 118, fastening nut; 119, rubber pad; 120, fine-tuning cylinder; 121, limit inner column; 122, locking pin; 123, locking pin groove; 124, hidden groove; 125, limit cap; 126, spring two; 127, auxiliary head; 128, screw groove seat. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] See also Figure 1-5 , an embodiment provided by the utility model:

[0026] A material pressing mechanism for a sewing machine comprises a presser foot body 100, a needle groove 101 is provided at the front side of the presser foot body 100, a base 102 is fixed at the top of the presser foot body 100, an assembly seat 103 is assembled at the upper end of the base 102, an assembly groove 104 is provided at the upper part of the assembly seat 103, and assembly holes 105 are provided at both side walls of the assembly groove 104;

[0027] The presser foot body 100 is provided with an expansion edge 110 and an expansion edge 2 111 on both sides, and the expansion edge 110 and the expansion edge 2 111 are respectively assembled on the left and right sides of the presser foot body 100, and a fine-tuning cylinder 120 is fixed at the bottom of the assembly seat 103, and the fine-tuning cylinder 120 is inserted into the base 102;

[0028] Further, a slide 112 is mounted on the inner side of the expansion edge 110, and the slide 112 is inserted into the left wall of the presser foot body 100. A slide 113 is mounted on the inner side of the expansion edge 111, and the slide 113 is inserted into the right wall of the presser foot body 100. The inner ends of the slides 112 and 113 are fixed with limiting rings 116, and a spring 117 is arranged between the limiting ring 116 and the inner wall of the presser foot body 100. Two groups of springs 117 are respectively sleeved on the surfaces of the slide 112 and the slide 113. Through this design, the auxiliary sliding expansion use and support of the expansion edge 110 and the expansion edge 111 are facilitated.

[0029] Furthermore, a support stud 114 and a support stud 2 115 are respectively fixed to the middle of the inner side of the expansion edge 110 and the fine-tuning cylinder 120, and the support stud 114 and the support stud 2 115 are respectively inserted through the left and right sides of the presser foot body 100, and the surfaces of the support stud 114 and the support stud 2 115 are threadedly sleeved with fastening nuts 118, and the two sets of fastening nuts 118 are respectively located between the expansion edge 110 and the expansion edge 2 111 and the outer wall of the presser foot body 100. Through this design, it is convenient to assist the sliding buffering on both sides of the expansion edge 110 and the expansion edge 2 111, making the expansion operation more convenient;

[0030] Furthermore, the front outer walls of the expansion edge 110 and the expansion edge 2 111 are arranged in an arc shape, and the bottoms of the expansion edge 110 and the expansion edge 2 111 are both glued with rubber pads 119. This design facilitates the expansion and pressing of materials as needed, making it more convenient to use.

[0031] Furthermore, a limiting inner column 121 is inserted through the interior of the fine-tuning cylinder 120, and the limiting inner column 121 is fixed to the inner bottom wall of the base 102. A locking pin 122 is threadedly inserted into the upper side wall of the base 102, and the inner end of the locking pin 122 is clamped on the outer wall of the fine-tuning cylinder 120. A locking pin groove 123 corresponding to the locking pin 122 is opened on the outer wall of the fine-tuning cylinder 120, and a hidden groove 124 corresponding to the outer end of the locking pin 122 is opened on the outer wall of the base 102. Through this design, it is convenient to perform fine adjustment and locking according to needs, making it more convenient to use;

[0032] Furthermore, a limiting cap 125 is fixed on the top of the limiting inner column 121, and the limiting cap 125 is clamped inside the fine-tuning cylinder 120, and a second spring 126 is arranged between the lower part of the limiting cap 125 and the inside of the fine-tuning cylinder 120, and the second spring 126 is sleeved on the surface of the limiting inner column 121. Through this design, it is convenient to assist fine-tuning and make the use more convenient;

[0033] Furthermore, the presser foot main body 100 is composed of a presser foot upper shell 106 and a presser foot lower shell 107 which are connected up and down, and a limiting insert 108 is integrally arranged at the bottom of the presser foot upper shell 106, and the limiting insert 108 is inserted inside the side wall of the presser foot lower shell 107, and a limiting slot 109 corresponding to the limiting insert 108 is opened inside the side wall of the presser foot lower shell 107, and a screw groove seat 128 is arranged on the inner side wall of the presser foot lower shell 107 and the presser foot upper shell 106, and auxiliary heads 127 are integrally arranged on both sides of the front end of the presser foot lower shell 107. Through this design, it is convenient to combine and assemble during use, making the assembly operation more convenient and facilitating subsequent maintenance and repair.

[0034] Working principle: when it is necessary to use the sewing machine's material pressing mechanism to assist in sewing fabrics, expand both sides of the presser foot body 100 according to the needs of use. When expanding, pull the expansion side 110 and the expansion side 2 111 respectively. After expanding to the appropriate position, tighten the fastening nut 118 to the side of the outer wall of the presser foot body 100. With the cooperation of the limit ring 116 and the spring 117, it is convenient to assist in contact and tighten, so that the expansion and assembly of the expansion side 110 and the expansion side 2 111 are more convenient and convenient for subsequent use. At the same time, when adjusting the expansion, the mutual cooperation of the slide 112 and the support stud 114 facilitates the auxiliary stable pulling and expansion of the expansion side 110. Similarly, with the cooperation of the slide 2 113 and the support stud 2 115, it is convenient to assist in the stable pulling of the expansion side 2 111 To expand, when in use, the rubber pad 119 is used to assist in pressing the material. When pressing the material, the locking pin 122 can be loosened according to the needs of use to facilitate the release of the clamping of the fine-tuning cylinder 120, so that the base 102 and the assembly seat 103 can be fine-tuned and lifted with the cooperation of the limiting inner column 121 and the fine-tuning cylinder 120. Then, the locking pin 122 is tightened to facilitate the re-limiting of the fine-tuning cylinder 120 with the cooperation of the locking pin groove 123, making the fine-tuning and lifting more convenient. Furthermore, during fine-tuning, the elastic force of the spring 2 126 is used to facilitate buffering and assisting during lifting, making the adjustment operation more convenient. With the setting of the fastening nut 118 and the rubber pad 119, it is convenient to assemble the presser foot body 100 through the screw groove seat 128, which is convenient for subsequent maintenance and use. The operation ends here.

[0035] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A material pressing mechanism for a sewing machine, comprising a presser foot body (100), a needle groove (101) is provided on the front side of the presser foot body (100), a base (102) is fixed on the top of the presser foot body (100), an assembly seat (103) is mounted on the upper end of the base (102), an assembly groove (104) is provided on the upper part of the assembly seat (103), and assembly holes (105) are provided on both side walls of the assembly groove (104); Features: The presser foot body (100) is provided with an expansion edge 1 (110) and an expansion edge 2 (111) on both sides, and the expansion edge 1 (110) and the expansion edge 2 (111) are respectively assembled on the left and right sides of the presser foot body (100), and a fine-tuning cylinder (120) is fixed at the bottom of the assembly seat (103), and the fine-tuning cylinder (120) is inserted into the base (102).

2. A material pressing mechanism for a sewing machine according to claim 1, characterized in that: The inner side of the expansion edge 1 (110) is equipped with a slide 1 (112), and the slide 1 (112) is inserted into the left wall of the presser foot body (100); the inner side of the expansion edge 2 (111) is equipped with a slide 2 (113), and the slide 2 (113) is inserted into the right wall of the presser foot body (100); the inner ends of the slide 1 (112) and the slide 2 (113) are both fixed with a limiting ring (116); a spring 1 (117) is arranged between the limiting ring (116) and the inner wall of the presser foot body (100); two groups of the spring 1 (117) are respectively sleeved on the surface of the slide 1 (112) and the slide 2 (113).

3. A material pressing mechanism for a sewing machine according to claim 1, characterized in that: A support stud 1 (114) and a support stud 2 (115) are fixed to the middle of the inner side of the expansion edge 1 (110) and the fine-tuning tube (120), respectively. The support stud 1 (114) and the support stud 2 (115) are respectively inserted through the left and right sides of the presser foot body (100). The surfaces of the support stud 1 (114) and the support stud 2 (115) are both threadedly sleeved with fastening nuts (118). The two groups of fastening nuts (118) are respectively located between the expansion edge 1 (110) and the expansion edge 2 (111) and the outer wall of the presser foot body (100).

4. A material pressing mechanism for a sewing machine according to claim 1, characterized in that: The front outer walls of the expansion edge 1 (110) and the expansion edge 2 (111) are arranged in an arc shape, and rubber pads (119) are glued to the bottoms of the expansion edge 1 (110) and the expansion edge 2 (111).

5. The material pressing mechanism for a sewing machine according to claim 1, characterized in that: A limiting inner column (121) is inserted through the interior of the fine-tuning cylinder (120), and the limiting inner column (121) is fixed to the inner bottom wall of the base (102). A locking pin (122) is threadedly inserted into the upper side wall of the base (102), and the inner end of the locking pin (122) is clamped on the outer wall of the fine-tuning cylinder (120). A locking pin groove (123) corresponding to the locking pin (122) is provided on the outer wall of the fine-tuning cylinder (120), and a hidden groove (124) corresponding to the outer end of the locking pin (122) is provided on the outer wall of the base (102).

6. A material pressing mechanism for a sewing machine according to claim 5, characterized in that: A limiting cap (125) is fixed on the top of the limiting inner column (121), the limiting cap (125) is clamped inside the fine-tuning cylinder (120), and a second spring (126) is arranged between the bottom of the limiting cap (125) and the inside of the fine-tuning cylinder (120), and the second spring (126) is sleeved on the surface of the limiting inner column (121).

7. A material pressing mechanism for a sewing machine according to claim 1, characterized in that: The upper part of the assembly seat (103) is provided with an assembly groove (104), and the two side walls of the assembly groove (104) are provided with assembly holes (105). The presser foot body (100) is composed of a presser foot upper shell (106) and a presser foot lower shell (107) connected to each other up and down, and a limit insert (108) is integrally arranged at the bottom of the presser foot upper shell (106), and the limit insert (108) is inserted inside the side wall of the presser foot lower shell (107). A limit slot (109) corresponding to the limit insert (108) is arranged inside the side wall of the presser foot lower shell (107), and screw groove seats (128) are arranged on the inner side walls of the presser foot lower shell (107) and the presser foot upper shell (106), and auxiliary heads (127) are integrally arranged on both sides of the front end of the presser foot lower shell (107).

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