Collar pressing die, collar sewing device and collar sewing method

Abstract

The present invention relates to a collar pressing die, a collar sewing device and a collar sewing method. The collar pressing die comprises a base, a first outer pressing member, a second outer pressing member and a middle pressing member. The first outer pressing member, the second outer pressing member and the middle pressing member are all movably connected to the base, and the first outer pressing member and the second outer pressing member are respectively located on both sides of the middle pressing member. The first outer pressing member comprises a first straight edge pressing portion and a first oblique edge pressing portion. The second outer pressing member comprises a second straight edge pressing portion and a second oblique edge pressing portion. The collar pressing die can be used to effectively improve the sewing accuracy of the collar. At the same time, when sewing, the staff does not need to align and sew at the same time, which can effectively reduce the work intensity of the staff.

Description

Technical Field

[0001] The invention relates to the field of textiles, in particular to a collar pressing die, a collar sewing device and a collar sewing method. Background Art

[0002] The collar is an important component of ready-made clothing. In the collar processing, such as Figure 1 As shown, it is usually necessary to overlap two collar pieces of different lengths, such as a longer collar piece 10 and a shorter collar piece 20, so that the straight edges 11 (21) of the two collar pieces are aligned, and the two oblique edges 12 (22) and 13 (23) are aligned respectively, and then the aligned straight edges and oblique edges are sewn. Traditional collar sewing often requires a lot of manual work by the staff, who align the collar pieces and sew at the same time. This collar sewing method makes the staff's work intensity high and the sewing accuracy difficult to ensure. Summary of the invention

[0003] Based on this, it is necessary to provide a collar pressing die and collar sewing equipment and collar sewing method that improve the collar sewing accuracy and reduce the work intensity of the staff.

[0004] In order to solve the above technical problems, the technical solution of the present invention is:

[0005] A collar pressing die comprises a base, a first outer pressing piece, a second outer pressing piece and a middle pressing piece;

[0006] The first outer pressing member, the second outer pressing member and the middle pressing member are all movably connected to the base, and the first outer pressing member and the second outer pressing member are respectively located on both sides of the middle pressing member;

[0007] The first outer side pressing member comprises a first straight edge pressing portion and a first oblique edge pressing portion, the first oblique edge pressing portion is movably connected to the first straight edge pressing portion, and the angle formed between the first oblique edge pressing portion and the first straight edge pressing portion is adjustable to press a oblique edge of the collar;

[0008] The second outer side pressing member comprises a second straight edge pressing portion and a second oblique edge pressing portion, the second oblique edge pressing portion is movably connected to the second straight edge pressing portion, and the angle formed between the second oblique edge pressing portion and the second straight edge pressing portion is adjustable to press the other oblique edge of the collar;

[0009] The first outer pressing piece, the second outer pressing piece and the middle pressing piece can extend from the base to make the first straight edge pressing portion, the second straight edge pressing portion and the middle pressing piece flush for pressing the straight edge of the collar.

[0010] In one embodiment, the intermediate pressing member has a mounting portion and a smoothing portion; the mounting portion is movably connected to the base, the smoothing portion is movably connected to the mounting portion, and both ends of the smoothing portion can extend toward the first outer pressing member and the second outer pressing member respectively; the intermediate pressing member can extend from the base to make the smoothing portion flush with the first straight-edge pressing portion and the second straight-edge pressing portion.

[0011] In one embodiment, the collar pressing mold further comprises a first inner pressing member and a second inner pressing member; the first inner pressing member and the second inner pressing member are both movably connected to the base;

[0012] The first inner pressing member is located between the first outer pressing member and the middle pressing member, and the second inner pressing member is located between the second outer pressing member and the middle pressing member; the surface of the first inner pressing member for pressing the collar is partially concave for accommodating the protruding collar, and the surface of the second inner pressing member for pressing the collar is partially concave for accommodating the protruding collar;

[0013] The first inner pressing member and the second inner pressing member can extend from the base and be flush with the first straight-edge pressing portion and the second straight-edge pressing portion.

[0014] In one embodiment, the first straight-edge pressing portion is hinged to the first oblique-edge pressing portion.

[0015] In one embodiment, the second straight-edge pressing portion is hinged to the second oblique-edge pressing portion.

[0016] In one embodiment, the first outer pressing member, the second outer pressing member and the middle pressing member are an integrally formed structure.

[0017] In one embodiment, the collar pressing mold further includes a plurality of driving mechanisms, and the plurality of driving mechanisms are respectively connected to the first outer pressing member, the second outer pressing member and the middle pressing member.

[0018] A collar sewing device, comprising a machine platform, a sewing mechanism and a collar pressing die as described in any of the above embodiments;

[0019] The machine has a workbench, the base is connected to the machine, and the first straight-edge pressing portion, the first bevel pressing portion, the second straight-edge pressing portion, the second bevel pressing portion and the intermediate pressing member can all abut against the collar located on the surface of the workbench;

[0020] The sewing mechanism is connected to the machine platform, and is used for sewing the straight edge and the oblique edge of the collar.

[0021] In one embodiment, the workbench has an air outlet, and the air outlet is connected to an exhaust mechanism to allow the collar to be adsorbed on the workbench.

[0022] A collar sewing method, using the collar sewing device as described in any of the above embodiments; the collar sewing method comprises the following steps:

[0023] Place two collar pieces of different lengths on top of each other so that the straight edges and the oblique edges of the two collar pieces are aligned to obtain aligned pieces;

[0024] Adjust the first outer pressing member, the second outer pressing member, and the middle pressing member to extend from the base, so that the first straight edge pressing portion, the second straight edge pressing portion, and the middle pressing member are aligned and press the straight edge of the alignment piece, and the first oblique edge pressing portion and the second oblique edge pressing portion respectively press the two oblique edges of the alignment piece;

[0025] The straight edge and two oblique edges of the aligned panels are sewn together by the sewing mechanism.

[0026] The collar pressing mold comprises a base, a first outer pressing member, a second outer pressing member and a middle pressing member. The first outer pressing member, the second outer pressing member and the middle pressing member are all movably connected to the base, and the first outer pressing member and the second outer pressing member are respectively located on both sides of the middle pressing member. The first outer pressing member comprises a first straight edge pressing portion and a first bevel pressing portion, the first bevel pressing portion is movably connected to the first straight edge pressing portion, and the angle formed between the first bevel pressing portion and the first straight edge pressing portion is adjustable to press one bevel of the collar. The second outer pressing member comprises a second straight edge pressing portion and a second bevel pressing portion, the second bevel pressing portion is movably connected to the second straight edge pressing portion, and the angle formed between the second bevel pressing portion and the second straight edge pressing portion is adjustable to press the other bevel of the collar. The first outer pressing member, the second outer pressing member and the middle pressing member can extend from the base to make the first straight edge pressing part, the second straight edge pressing part and the middle pressing member flush to press the straight edge of the collar. The collar pressing die can cooperate with the first straight edge pressing part, the middle pressing member and the second straight edge pressing part to press the straight edge of the collar (a collar formed by stacking two collar pieces of different lengths), and by adjusting the angle formed between the first bevel pressing part and the first straight edge pressing part, and the angle formed between the second bevel pressing part and the second straight edge pressing part, the two bevels of the collar can be pressed respectively by the first bevel pressing part and the second bevel pressing part, so that the alignment accuracy of the two collar pieces can be effectively improved, and the sewing accuracy of the collar can be effectively improved. At the same time, when sewing, the staff does not need to align and sew at the same time, which can effectively reduce the work intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of two collar pieces of different lengths;

[0028] Figure 2 A schematic diagram of a stacked structure of two collar panels of different lengths according to an embodiment of the present invention;

[0029] Figure 3 It is a schematic diagram of a stacked structure of two collar pieces of different lengths in another embodiment of the present invention;

[0030] Figure 4 It is a structural schematic diagram of a collar pressing mold in one embodiment of the present invention;

[0031] Figure 5 It is a structural schematic diagram of a collar pressing mold in another embodiment of the present invention;

[0032] Figure 6 In one embodiment of the present invention, Figure 4 A schematic structural diagram of the collar sewing equipment corresponding to the collar pressing die.

[0033] Description of the markings in the figure:

[0034] 10. Longer collar piece; 11. Straight edge; 12. Bevel edge; 13. Bevel edge; 14. Raised collar; 20. Shorter collar piece; 21. Straight edge; 22. Bevel edge; 23. Bevel edge; 100. Collar pressing mold; 101. Base; 102. First outer pressing piece; 1021. First straight edge pressing part; 1022. First bevel edge pressing part; 103. Second outer pressing piece; 1031. Second straight edge pressing part; 1032. Second bevel edge Pressing part; 104, middle pressing member; 1041, mounting part; 1042, smoothing part; 105, first inner pressing member; 106, second inner pressing member; 107, driving mechanism; 200, collar sewing equipment; 201, machine platform; 2011, workbench; 2012, air outlet; 202, sewing mechanism; 203, exhaust mechanism; 204, scanning mechanism; 205, material collecting box; 206, collar guide; 207, controller. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention 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 present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0036] 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 limiting the present invention.

[0037] 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 invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] 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.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0040] See also Figure 4According to an embodiment of the present invention, a collar pressing die 100 is provided. The collar pressing die 100 comprises a base 101, a first outer pressing member 102, a second outer pressing member 103 and a middle pressing member 104. The first outer pressing member 102, the second outer pressing member 103 and the middle pressing member 104 are all movably connected to the base 101, and the first outer pressing member 102 and the second outer pressing member 103 are respectively located on both sides of the middle pressing member 104. The first outer pressing member 102 comprises a first straight edge pressing portion 1021 and a first oblique edge pressing portion 1022, the first oblique edge pressing portion 1022 is movably connected to the first straight edge pressing portion 1021, and the angle formed between the first oblique edge pressing portion 1022 and the first straight edge pressing portion 1021 is adjustable for pressing a oblique edge of the collar. The second outer pressing member 103 has a second straight edge pressing portion 1031 and a second oblique edge pressing portion 1032. The second oblique edge pressing portion 1032 is movably connected to the second straight edge pressing portion 1031. The angle formed between the second oblique edge pressing portion 1032 and the second straight edge pressing portion 1031 is adjustable to press the other oblique edge of the collar. The first outer pressing member 102, the second outer pressing member 103 and the middle pressing member 104 can extend from the base 101 to make the first straight edge pressing portion 1021, the second straight edge pressing portion 1031 and the middle pressing member 104 flush to press the straight edge of the collar. The collar pressing die 100 in this embodiment can cooperate with the first straight edge pressing part 1021, the middle pressing part 104 and the second straight edge pressing part 1031 to press the straight edge of the collar (a collar formed by stacking two collar pieces of different lengths), and adjust the angle formed between the first oblique edge pressing part 1022 and the first straight edge pressing part 1021, and the angle formed between the second oblique edge pressing part 1032 and the second straight edge pressing part 1031, and then press the two oblique edges of the collar respectively through the first oblique edge pressing part 1022 and the second oblique edge pressing part 1032, so that the alignment accuracy of the two collar pieces can be effectively improved, and then the sewing accuracy of the collar can be effectively improved. At the same time, when sewing, the staff does not need to align and sew at the same time, which can effectively reduce the work intensity of the staff.

[0041] In a preferred solution, the intermediate pressing member 104 has a mounting portion 1041 and a smoothing portion 1042; the mounting portion 1041 is movably connected to the base 101, the smoothing portion 1042 is movably connected to the mounting portion 1041, and the two ends of the smoothing portion 1042 can extend toward the first outer pressing member 102 and the second outer pressing member 103 respectively; the intermediate pressing member 104 can extend from the base 101 so that the smoothing portion 1042 is flush with the first straight edge pressing portion 1021 and the second straight edge pressing portion 1031. The arrangement of the smoothing portion 1042 can flexibly adapt to the alignment and pressing of collar pieces of different lengths. When the length of the collar piece changes, the extension length of the smoothing portion 1042 can be adjusted so that it can fully press the straight edge of the collar piece.

[0042] In a specific example, the collar pressing mold 100 further includes a first inner pressing member 105 and a second inner pressing member 106; the first inner pressing member 105 and the second inner pressing member 106 are both movably connected to the base 101. The first inner pressing member 105 is located between the first outer pressing member 102 and the middle pressing member 104, and the second inner pressing member 106 is located between the second outer pressing member 103 and the middle pressing member 104; the surface of the first inner pressing member 105 for pressing the collar is partially concave to accommodate the protruding collar 14, and the surface of the second inner pressing member 106 for pressing the collar is partially concave to accommodate the protruding collar 14. The first inner pressing member 105 and the second inner pressing member 106 can extend from the base 101 and be flush with the first straight edge pressing portion 1021 and the second straight edge pressing portion 1031.

[0043] See also Figure 2 and Figure 3 When two collar pieces of different lengths are stacked, the straight edges and beveled edges of the two collar pieces are aligned respectively. At this time, the upper longer collar piece 10 will bulge out to form a raised collar 14. By designing that the surface of the first inner clamping piece 105 used to clamp the collar is partially concave and the surface of the second inner clamping piece 106 used to clamp the collar is partially concave, these raised collars 14 can be well accommodated to avoid deformation of the raised collars 14 due to pressure during the clamping process, thereby causing an adverse effect on the quality of the collar product. Furthermore, during the clamping process, the raised collar 14 can be pushed to a position matching the first inner clamping piece 105 and the second inner clamping piece 106 through the action of the smoothing portion 1042, thereby improving the degree of automation and improving processing efficiency.

[0044] See also Figure 5 Another embodiment of the present invention provides another collar die 100. The die and Figure 4 Compared with the corresponding pressing die, the difference is that the smoothing portion 1042 is longer, and the concave portion of the surface of the collar used to press the first inner pressing piece 105 is closer to its edge, and the concave portion of the surface of the collar used to press the second inner pressing piece 106 is closer to its edge, so that the collar with the convex portion closer to the edge can be pressed.

[0045] Please refer again Figure 2 and Figure 3 , Figure 3 The raised collar 14 is Figure 2 Closer to the edge of the collar. At this time, you can use Figure 4 Corresponding die pair Figure 2 The corresponding overlapping collar pieces are pressed tightly, using Figure 5 Corresponding die pair Figure 3The corresponding overlapping collar pieces are pressed tightly.

[0046] In a specific example, the first straight-side pressing portion 1021 is hinged to the first oblique-side pressing portion 1022. The hinged connection between the first straight-side pressing portion 1021 and the first oblique-side pressing portion 1022 can more conveniently adjust the angle formed between the first straight-side pressing portion 1021 and the first oblique-side pressing portion 1022 to match collars with different angles, thereby fully pressing the oblique side of the collar. Further, the second straight-side pressing portion 1031 is hinged to the second oblique-side pressing portion 1032. At this time, the angle formed between the second straight-side pressing portion 1031 and the second oblique-side pressing portion 1032 can be more conveniently adjusted to match collars with different angles, thereby fully pressing the oblique side of the collar.

[0047] In another specific example, the first outer pressing member 102, the second outer pressing member 103 and the middle pressing member 104 are an integrally formed structure. In this case, the collar piece with a constant length can be pressed more conveniently without adjusting the relative positions of the first outer pressing member 102, the second outer pressing member 103 and the middle pressing member 104, which is conducive to further improving the processing efficiency.

[0048] It is understandable that the collar pressing die 100 further includes a plurality of driving mechanisms 107 (only one driving mechanism 107 is shown in the figure, and the others are not shown), and the plurality of driving mechanisms 107 are respectively connected to the first outer side pressing member 102, the second outer side pressing member 103, and the middle pressing member 104. At this time, the first outer side pressing member 102, the second outer side pressing member 103, and the middle pressing member 104 can be respectively driven to move by the plurality of driving mechanisms 107 to meet the processing requirements. It is also understandable that the smoothing portion 1042, the first bevel pressing portion 1022, and the second bevel pressing portion 1032 can all be connected to the driving mechanism 107 and move under the action of the driving mechanism 107, which can further improve the processing efficiency.

[0049] See also Figure 6 Another embodiment of the present invention provides a collar sewing device 200. The collar sewing device 200 includes a machine platform 201, a sewing mechanism 202 and Figure 4The corresponding collar pressing die 100. The machine 201 has a workbench 2011, the base 101 is connected to the machine 201, and the first straight edge pressing part 1021, the first oblique edge pressing part 1022, the second straight edge pressing part 1031, the second oblique edge pressing part 1032 and the intermediate pressing member 104 can all abut against the collar located on the surface of the workbench 2011. The sewing mechanism 202 is connected to the machine 201, and the sewing mechanism 202 is used to sew the straight edge and the oblique edge of the collar. By adopting the collar sewing device 200 in this embodiment, the collar can be accurately pressed by the collar pressing die 100, and then the straight edge and the oblique edge of the collar can be sewn by the sewing mechanism 202, which can effectively improve the collar sewing accuracy while reducing the work intensity of the staff.

[0050] It is understood that the collar pressing die 100 in the collar sewing device 200 may be Figure 5 The corresponding collar die 100 and the collar die in any of the above examples or schemes.

[0051] Further, the workbench 2011 has an air outlet 2012, and the air outlet 2012 is connected to the exhaust mechanism 203 so as to make the collar adsorbed on the workbench 2011. Through the arrangement of the air outlet 2012 and the exhaust mechanism 203, a certain negative pressure can be formed between the collar and the workbench 2011, so that the collar can be more stably adsorbed on the workbench 2011. It can be understood that the air outlet 2012 can be a slot type or a hole type, and both can achieve the effect of being connected to the exhaust mechanism 203 so as to make the collar adsorbed on the workbench 2011. Preferably, the uniformity of the negative pressure can be improved by a plurality of slot type air outlets 2012 or a plurality of hole type air outlets 2012, and the stability of the collar adsorbed on the workbench 2011 can be further improved. The air outlet 2012 in this embodiment is formed by arranging a plurality of hole type vents, and the arrangement is in multiple rows and columns.

[0052] Furthermore, the collar sewing device 200 further includes a scanning mechanism 204; the scanning mechanism 204 is connected to the machine table 201 to determine the position of the collar on the workbench 2011. The position of the collar on the workbench 2011 can be obtained in real time through the scanning mechanism 204, further improving the accuracy of collar placement, compression and sewing. Specifically, the scanning mechanism 204 includes a laser lamp. At this time, the position of the collar on the workbench 2011 can be determined by the laser lamp.

[0053] It is understandable that the collar sewing device 200 further includes a material receiving box 205; the material receiving box 205 is connected to the machine 201 for receiving the collars after sewing. Further, the collar sewing device 200 further includes a collar guide 206; the collar guide 206 is movably connected to the machine 201 for guiding the collars after sewing to the material receiving box 205. Specifically, the collar guide 206 is a brush.

[0054] It is understandable that the collar can be pressed onto the workbench 2011 by the pressing die, and the position of the collar on the workbench 2011 can be driven by the movement of the pressing die on the machine 201. For example, after the collar is pressed onto the workbench 2011 by the pressing die, the collar can be driven to the sewing position of the sewing mechanism 202 by the movement of the pressing die on the machine 201, and after sewing, the collar can be driven to the receiving position of the receiving box 205 by the movement of the pressing die on the machine 201.

[0055] In a specific example, the collar sewing device 200 further includes a controller 207; the sewing mechanism 202 and the collar pressing die 100 are electrically connected to the controller 207, respectively, and the controller 207 is used to control the sewing of the sewing mechanism 202 and the collar pressing of the collar pressing die 100. The collar sewing device 200 can be controlled more conveniently and intuitively through the function of the controller 207.

[0056] Another embodiment of the present invention provides a collar sewing method, which uses the above-mentioned collar sewing device 200; the collar sewing method includes the following steps: stacking two collar pieces of different lengths, aligning the straight edges and bevel edges of the two collar pieces, and obtaining an aligned piece. Adjusting the first outer pressing member 102, the second outer pressing member 103, and the middle pressing member 104 to extend from the base 101, so that the first straight edge pressing part 1021, the second straight edge pressing part 1031, and the middle pressing member 104 are aligned and press the straight edges of the aligned piece, so that the first bevel pressing part 1022 and the second bevel pressing part 1032 respectively press the two bevel edges of the aligned piece. The straight edge and the two bevel edges of the aligned piece are sewn by the sewing mechanism 202. The collar sewing method in this embodiment can accurately sew the collar and reduce the workload of the staff.

[0057] 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.

[0058] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A collar die, characterized in that: It includes a base, a first outer pressing member, a second outer pressing member, a first inner pressing member, a second inner pressing member and a middle pressing member; The first outer pressing member, the second outer pressing member and the middle pressing member are all movably connected to the base, and the first outer pressing member and the second outer pressing member are respectively located on both sides of the middle pressing member; The first outer side pressing member comprises a first straight edge pressing portion and a first oblique edge pressing portion, the first oblique edge pressing portion is movably connected to the first straight edge pressing portion, and the angle formed between the first oblique edge pressing portion and the first straight edge pressing portion is adjustable to press a oblique edge of the collar; The second outer side pressing member comprises a second straight edge pressing portion and a second oblique edge pressing portion, the second oblique edge pressing portion is movably connected to the second straight edge pressing portion, and the angle formed between the second oblique edge pressing portion and the second straight edge pressing portion is adjustable to press the other oblique edge of the collar; The first outer pressing member, the second outer pressing member and the middle pressing member can extend from the base to make the first straight edge pressing portion, the second straight edge pressing portion and the middle pressing member flush with each other for pressing the straight edge of the collar; The first inner pressing member and the second inner pressing member are both movably connected to the base; The first inner pressing member is located between the first outer pressing member and the middle pressing member, and the second inner pressing member is located between the second outer pressing member and the middle pressing member; the surface of the first inner pressing member for pressing the collar is partially concave for accommodating the protruding collar, and the surface of the second inner pressing member for pressing the collar is partially concave for accommodating the protruding collar; The first inner pressing member and the second inner pressing member can extend from the base and be flush with the first straight-edge pressing portion and the second straight-edge pressing portion.

2. The collar die according to claim 1, characterized in that: The intermediate pressing member has a mounting portion and a smoothing portion; the mounting portion is movably connected to the base, the smoothing portion is movably connected to the mounting portion, and both ends of the smoothing portion can extend toward the first outer pressing member and the second outer pressing member respectively; the intermediate pressing member can extend from the base to make the smoothing portion flush with the first straight-edge pressing portion and the second straight-edge pressing portion.

3. The collar die according to any one of claims 1 to 2, characterized in that: The first straight-edge pressing portion is hinged to the first oblique-edge pressing portion.

4. The collar pressing die according to any one of claims 1 to 2, characterized in that: The second straight-edge pressing portion is hinged to the second oblique-edge pressing portion.

5. The collar pressing die according to any one of claims 1 to 2, characterized in that: The first outer pressing member, the second outer pressing member and the middle pressing member are an integrally formed structure.

6. The collar pressing die according to any one of claims 1 to 2, characterized in that: It also includes a plurality of driving mechanisms, which are respectively connected to the first outer pressing member, the second outer pressing member and the middle pressing member.

7. A collar sewing device, characterized in that: It comprises a machine platform, a sewing mechanism and a collar pressing die as claimed in any one of claims 1 to 6; The machine has a workbench, the base is connected to the machine, and the first straight-edge pressing portion, the first bevel pressing portion, the second straight-edge pressing portion, the second bevel pressing portion and the intermediate pressing member can all abut against the collar located on the surface of the workbench; The sewing mechanism is connected to the machine platform, and is used for sewing the straight edge and the oblique edge of the collar.

8. The collar sewing device according to claim 7, characterized in that: The workbench is provided with an air outlet, and the air outlet is connected with an air exhaust mechanism so as to allow the collar to be adsorbed on the workbench.

9. The collar sewing device according to any one of claims 7 to 8, characterized in that: The collar sewing device also includes a scanning mechanism; the scanning mechanism is connected to the machine platform to determine the position of the collar on the workbench.

10. A collar sewing method, characterized in that: The collar sewing device according to any one of claims 7 to 9 is used; the collar sewing method comprises the following steps: Place two collar pieces of different lengths on top of each other so that the straight edges and the oblique edges of the two collar pieces are aligned to obtain aligned pieces; Adjust the first outer pressing member, the second outer pressing member, and the middle pressing member to extend from the base, so that the first straight edge pressing portion, the second straight edge pressing portion, and the middle pressing member are aligned and press the straight edge of the alignment piece, and the first oblique edge pressing portion and the second oblique edge pressing portion respectively press the two oblique edges of the alignment piece; The straight edge and two oblique edges of the aligned panels are sewn together by the sewing mechanism.

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