Presser foot structure and flat seaming machine

Abstract

The utility model relates to a presser foot structure and a flat seaming machine. The presser foot structure is used for sewing an elastic band and comprises a presser foot bottom plate, a cloth pressing plate and two baffles. The cloth pressing plate is fixedly arranged on the presser foot bottom plate and is provided with a cloth pressing part, each baffle is provided with a blocking part, and the two blocking parts are located on the two opposite sides of the cloth pressing part; the cloth pressing plate is fixedly connected to the presser foot bottom plate, and compared with the scheme that a cloth pressing plate and a cutter are arranged on two parts in the prior art, on one hand, the difficulty of positioning and debugging between the cloth pressing plate and the cutter in the assembling process can be lowered; and on the other hand, the positioning error between the cloth pressing plate and the cutter after assembly can be effectively reduced, so that the situation that the cloth cannot be cut by the cutter is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field related to interlock sewing machines, in particular to a presser foot structure and an interlock sewing machine. Background Art

[0002] In the current interlock sewing machine used to sew elastic bands to fabrics, the cloth pressing device and the baffle device for limiting the position of the elastic band are usually installed as components on the front cover sewing table, and the cloth pressing device and the baffle device extend from the front cover sewing table to the presser foot and the cutter position on the machine housing to cooperate with the presser foot and the cutter to complete the sewing operation;

[0003] However, since the casing and the front cover seam table are two-part structures, on the one hand, the assembly and debugging between the cloth pressing device and the cutter is rather complicated, and on the other hand, the debugging and positioning error is large, and it is easy for the cutter to fail to cut the cloth due to the inadequate coordination between the cutter and the cloth pressing device. Utility Model Content

[0004] Based on this, it is necessary to provide a presser foot structure and a stretch sewing machine with simple assembly and debugging between the cloth pressing device and the cutter and a small debugging error, in order to address the problem that the assembly and debugging between the cloth pressing device and the cutter are cumbersome, the debugging error is large, and the cloth is easily not cut.

[0005] The present application first provides a presser foot structure for sewing elastic bands, including a presser foot base, a cloth pressing plate, a first baffle and a second baffle; the cloth pressing plate is fixed to the presser foot base and has a cloth pressing portion, the first baffle includes a first plate body and a first blocking portion, the second baffle includes a second plate body and a second blocking portion, and the first blocking portion and the second blocking portion are located on opposite sides of the cloth pressing portion.

[0006] In one of the embodiments, the cloth pressing plate is adjustably fixed to the presser foot bottom plate along the X-axis direction.

[0007] In one embodiment, the two baffles are divided into a first baffle and a second baffle, the second baffle is located on one side of the cloth pressing part along the X-axis direction, the first baffle includes a first plate body and a first blocking part, the first plate body extends from one side of the cloth pressing part to the other side along the X-axis direction, and the first blocking part is located on the other side of the cloth pressing part.

[0008] In one of the embodiments, the first baffle is adjustably fixed to the presser foot bottom plate along the X-axis direction.

[0009] In one embodiment, the cloth pressing plate, the first baffle plate and the presser foot bottom plate are stacked in sequence.

[0010] In one of the embodiments, the presser foot base is provided with a first threaded hole, the first plate body is provided with a first adjustment slot, the cloth pressing plate includes a cloth pressing plate body and the cloth pressing portion, and the cloth pressing plate body is provided with a cloth pressing adjustment slot; the presser foot structure also includes a first bolt, the first bolt passes through the cloth pressing adjustment slot and the first adjustment slot and is threadedly connected to the first threaded hole to cooperate with the presser foot base to clamp and fix the cloth pressing plate and the first baffle.

[0011] In one of the embodiments, the second baffle is adjustably fixed to the presser foot bottom plate along the X-axis direction.

[0012] In one embodiment, the second baffle, the cloth pressing plate and the presser foot bottom plate are stacked in sequence.

[0013] In one of the embodiments, the second baffle includes a second plate body and a second blocking portion, the second plate body is provided with a second adjustment slot, the cloth pressing plate includes a cloth pressing plate body and the cloth pressing portion, the cloth pressing plate body is provided with a plurality of second threaded holes arranged along the X-axis direction; the presser foot structure also includes a second bolt, the second bolt passes through the second adjustment slot and can be threadedly connected to any of the second threaded holes to cooperate with the cloth pressing plate to clamp and fix the second baffle.

[0014] A second aspect of the present application provides a flat sewing machine, comprising the above-mentioned presser foot structure.

[0015] The above-mentioned presser foot structure, by fixing the cloth pressing plate to the presser foot base plate, can simplify the difficulty of positioning and debugging the cloth pressing plate and the cutter during the assembly process, compared with the solution in the prior art that the cloth pressing plate and the cutter are respectively arranged in two parts. On the other hand, it can also effectively reduce the positioning error between the cloth pressing plate and the cutter after the assembly is completed, thereby avoiding the situation where the cutter cannot cut the cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the presser foot structure of the present application;

[0017] Figure 2 for Figure 1 Schematic diagram of the explosion structure.

[0018] Figure numerals: 10, presser foot sole; 11, first threaded hole; 20, cloth pressing plate; 21, cloth pressing plate body; 211, cloth pressing adjustment groove; 212, second threaded hole; 22, cloth pressing part; 30, first baffle; 31, first plate body; 311, first adjustment groove; 32, first blocking part; 40, second baffle; 41, second plate body; 411, second adjustment groove; 42, second blocking part; 50, first bolt; 60, second bolt. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0025] Please combine Figure 1 as well as Figure 2 As shown, the present application first provides a presser foot structure for sewing elastic bands, including a presser foot sole plate 10, a cloth pressing plate 20, a first baffle plate 30 and a second baffle plate 40; the cloth pressing plate 20 is fixed to the presser foot sole plate 10 and has a cloth pressing portion 22, the first baffle plate 30 includes a first plate body 31 and a first blocking portion 32, the second baffle plate 40 includes a second plate body 41 and a second blocking portion 42, the first blocking portion 32 and the second blocking portion 42 are located on opposite sides of the cloth pressing portion 22; the two blocking portions 32 and 42 are used to block and limit the range of movement of the elastic band, and the cloth pressing portion 22 is used to block and prevent the elastic band or cloth from curling up.

[0026] The X-axis direction in the present application refers to a direction perpendicular to the cloth feeding direction and parallel to the presser foot base plate 10 .

[0027] In the present application, on the one hand, since the presser foot sole plate 10 and the cutter are both arranged on the casing, and the cloth pressing plate 20 is fixedly connected to the presser foot sole plate 10, that is, the cloth pressing plate 20 and the cutter are both arranged on the casing, compared with the solution in the prior art that the cloth pressing plate 20 and the cutter are respectively arranged in two-part structures, the difficulty of positioning and debugging between the cloth pressing plate 20 and the cutter during the assembly process can be simplified.

[0028] On the other hand, since the presser foot base 10 and the cutter have relatively precise positioning, fixing the cloth pressing plate 20 to the presser foot base 10 can also effectively reduce the positioning error between the cloth pressing plate 20 and the cutter after assembly, thereby avoiding the situation where the cutter cannot cut the cloth.

[0029] In addition, since the cloth pressing plate 20 is fixed to the presser foot base plate 10, the cloth pressing plate 20 will be lifted together with the presser foot base plate 10 when the presser foot is lifted, thereby obtaining a larger taking and placing space.

[0030] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the cloth pressing plate 20 is adjustably fixed to the presser foot base plate 10 along the X-axis direction, so as to adjust the position of the cloth pressing plate 20 relative to the cutter and the presser foot base plate 10 during the assembly process to complete the positioning and debugging of the cloth pressing plate 20.

[0031] Specifically, the adjustable fixing may be bolt fixing or other commonly used fixing methods. As long as the position of the cloth pressing plate 20 can be adjusted as needed and the fixing is completed, the present application does not make any further limitations here.

[0032] In some embodiments, the two baffles 30, 40 can be fixed on the front cover seam platform or other structures and extend to both sides of the cloth pressing part 22, or they can be fixed relative to the presser foot base 10, as long as the two blocking parts 32, 42 are located on both sides of the cloth pressing part 22 and can limit the range of movement of the elastic band.

[0033] Among them, the two baffles 30 and 40 are fixed relative to the presser foot sole plate 10. The two baffles 30 and 40 can be directly fixed to the presser foot sole plate 10, or the two baffles 30 and 40 can be fixed to the cloth pressing plate 20 or other structures fixed to the presser foot sole plate 10. This application does not give examples one by one here.

[0034] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the two baffles 30 and 40 are divided into a first baffle 30 and a second baffle 40. The second baffle 40 is located on one side of the cloth pressing part 22 along the X-axis direction. The first baffle 30 includes a first plate body 31 and a first blocking part 32. The first plate body 31 extends from one side of the cloth pressing part 22 to the other side along the X-axis direction. The first blocking part 32 is located on the other side of the cloth pressing part 22.

[0035] Of course, the positional relationship between the two baffles 30 , 40 and the cloth pressing part 22 can also be adjusted according to actual needs, as long as it can be ensured that the two blocking parts 32 , 42 are located on both sides of the cloth pressing part 22 along the X-axis direction.

[0036] Please combine Figure 1 as well as Figure 2As shown, in some embodiments, the first baffle 30 and the second baffle 40 are both fixed relative to the presser foot sole 10; the first baffle 30 and the second baffle 40 are both fixed relative to the presser foot sole 10, and during the sewing process, the cloth pressing plate 20, the first baffle 30, and the second baffle 40 all move up and down together with the presser foot sole 10, and the blocking and limiting effect of the first baffle 30 and the second baffle 40 on the elastic band is relatively stable.

[0037] In some embodiments, the first baffle 30 and the second baffle 40 are respectively adjustably fixed to the presser foot base 10 along the X-axis direction; so that the positions of the first baffle 30 and the second baffle 40 can be adjusted according to the width and position of the elastic band to be sewn, thereby increasing the versatility of the presser foot structure of the present application.

[0038] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the cloth pressing plate 20, the first baffle plate 30 and the presser foot sole plate 10 are stacked in sequence; specifically, the presser foot sole plate 10 is provided with a first threaded hole 11, the first plate body 31 is provided with a first adjustment groove 311, the cloth pressing plate 20 includes a cloth pressing plate body 21 and a cloth pressing portion 22, and the cloth pressing plate body 21 is provided with a cloth pressing adjustment groove 211; the presser foot structure also includes a first bolt 50, the first bolt 50 passes through the cloth pressing adjustment groove 211 and the first adjustment groove 311 and is threadedly connected to the first threaded hole 11, so as to cooperate with the presser foot sole plate 10 to clamp and fix the cloth pressing plate 20 and the first baffle plate 30.

[0039] With such arrangement, the cloth pressing plate 20 and the first baffle plate 30 can be adjusted and fixed together by only one first bolt 50 , thereby reducing the number of parts of the presser foot structure of the present application, and lowering the difficulty of assembly and production cost.

[0040] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the second baffle 40, the cloth pressing plate 20 and the presser foot base plate 10 are stacked in sequence; specifically, the second baffle 40 includes a second plate body 41 and a second blocking portion 42, the second plate body 41 is provided with a second adjustment groove 411, the cloth pressing plate 20 includes a cloth pressing plate body 21 and a cloth pressing portion 22, and the cloth pressing plate body 21 is provided with a plurality of second threaded holes 212 arranged along the X-axis direction; the presser foot structure also includes a second bolt 60, the second bolt 60 passes through the second adjustment groove 411 and can be threadedly connected with any second threaded hole 212 to cooperate with the cloth pressing plate 20 to clamp and fix the second baffle 40.

[0041] With such a configuration, not only can the second adjustment slot 411 provide a certain adjustable range for the second baffle plate 40, but different adjustable ranges can also be obtained by connecting the second bolt 60 with different second threaded holes 212, so as to increase the adjustable range of the second baffle plate 40 along the X-axis direction, thereby further increasing the versatility of the presser foot structure of the present application.

[0042] In some embodiments, gaskets are provided between the first bolt 50 and the cloth pressing plate 20, and between the second bolt 60 and the second baffle 40 to ensure that the cloth pressing plate 20 and the second baffle 40 are subjected to uniform force, and to prevent excessive pressure applied by the bolts to the cloth pressing plate 20 or the second baffle 40 from damaging parts.

[0043] A second aspect of the present application provides a flat sewing machine, comprising the above-mentioned presser foot structure.

[0044] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A presser foot structure for sewing elastic bands, characterized in that: It comprises a presser foot sole (10), a cloth pressing plate (20), a first baffle (30) and a second baffle (40); The cloth pressing plate (20) is fixedly arranged on the presser foot sole (10) and comprises a cloth pressing portion (22); the first baffle plate (30) comprises a first plate body (31) and a first blocking portion (32); the second baffle plate (40) comprises a second plate body (41) and a second blocking portion (42); the first blocking portion (32) and the second blocking portion (42) are located on opposite sides of the cloth pressing portion (22).

2. The presser foot structure according to claim 1, characterized in that: The cloth pressing plate (20) is adjustably fixed to the presser foot bottom plate (10) along the X-axis direction.

3. The presser foot structure according to claim 1, characterized in that: The second baffle (40) is located on one side of the cloth pressing portion (22) along the X-axis direction, the first plate body (31) extends from one side of the cloth pressing portion (22) to the other side along the X-axis direction, and the first blocking portion (32) is located on the other side of the cloth pressing portion (22).

4. The presser foot structure according to claim 3, characterized in that: The first baffle (30) is adjustably fixed to the presser foot base plate (10) along the X-axis direction.

5. The presser foot structure according to claim 4, characterized in that: The cloth pressing plate (20), the first baffle plate (30) and the presser foot base plate (10) are stacked in sequence.

6. The presser foot structure according to claim 5, characterized in that: The presser foot bottom plate (10) is provided with a first threaded hole (11), the first plate body (31) is provided with a first adjustment slot (311), the cloth pressing plate (20) comprises a cloth pressing plate body (21) and the cloth pressing portion (22), and the cloth pressing plate body (21) is provided with a cloth pressing adjustment slot (211); The presser foot structure also includes a first bolt (50), which passes through the cloth pressing adjustment groove (211) and the first adjustment groove (311) and is threadedly connected to the first threaded hole (11) to cooperate with the presser foot base plate (10) to clamp and fix the cloth pressing plate (20) and the first baffle plate (30).

7. The presser foot structure according to claim 3, characterized in that: The second baffle plate (40) is adjustably fixed to the presser foot base plate (10) along the X-axis direction.

8. The presser foot structure according to claim 7, characterized in that: The second baffle plate (40), the cloth pressing plate (20) and the presser foot base plate (10) are stacked in sequence.

9. The presser foot structure according to claim 8, characterized in that: The second plate body (41) is provided with a second adjustment groove (411); the cloth pressing plate (20) comprises a cloth pressing plate body (21) and the cloth pressing portion (22); the cloth pressing plate body (21) is provided with a plurality of second threaded holes (212) arranged along the X-axis direction; The presser foot structure also includes a second bolt (60), which passes through the second adjustment slot (411) and can be threadedly connected to any of the second threaded holes (212) to cooperate with the cloth pressing plate (20) to clamp and fix the second baffle (40).

10. A flat seam sewing machine, characterized in that: The invention comprises a presser foot structure as claimed in any one of claims 1 to 9.

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