A clamping mechanism for positioning shirt cuff cloth

Abstract

The utility model discloses a kind of clamping mechanisms for shirt cuff cloth positioning, applicable to the processing procedure that shirt cuff is composed of two pieces of long strip cloth. The mechanism is detachably mounted on rotating station, including the sandwich structure of bottom support plate, middle plate and upper cover plate, middle plate and upper cover plate are rotatably connected with bottom support plate by spring hinge, and can be automatically closed under the action of torsion spring. Bottom support plate is provided with through hole and U-shaped clamping plate, middle plate surface is provided with increased strip, and upper cover plate lower surface is provided with shallow groove. When using, first piece of cloth is fixed between bottom support plate and middle plate, and second piece of cloth is fixed between middle plate and upper cover plate, to realize the independent clamping of cloth partition. The structure avoids displacement caused by cloth mutual interference, improves the alignment accuracy of cuff splicing, is convenient to operate, and adapts to automatic sewing demand.

Description

Technical Field

[0001] This utility model relates to industrial sewing machines, specifically to a clamping mechanism for positioning fabric at shirt cuffs. Background Technology

[0002] The shirt cuff fabric consists of two layers. During processing, the two layers need to be stacked together and then sewn. Currently, a positioning clamp is used to hold and fix the two layers of fabric before feeding them to the sewing machine. However, we have encountered the following problem: after placing the first piece of fabric inside the clamp, feeding the second piece of fabric into the positioning clamp easily causes the first piece of fabric to shift. This not only reduces the alignment accuracy of the cuff seam but also degrades the overall quality of the finished garment. Utility Model Content

[0003] This utility model provides a clamping mechanism for positioning shirt cuff fabric. The shirt cuff fabric consists of two long strips of fabric. The clamping mechanism is detachably installed on a rotating station. The clamping mechanism includes a sandwich structure of a bottom plate, a middle plate, and a top cover plate. One end of the middle plate and the top cover plate are rotatably connected to the bottom plate. The middle plate and the top cover plate are rotatably connected to the bottom plate through spring hinges. Under the torsion spring action of the spring hinges, the unforced middle plate and the top cover plate are driven to close.

[0004] A U-shaped clamp is fixed to one end of the base plate.

[0005] The bottom support plate is provided with a first through hole and a second through hole. The first through hole is connected to the lower surface of the middle plate. The middle plate is provided with a relief groove that coincides with the second through hole. The second through hole is connected to the upper cover plate through the relief groove.

[0006] The upper surface of the middle plate is equipped with a heightening strip.

[0007] Furthermore, the outer edge of the upper cover plate is provided with a downwardly curved edging. When both the middle plate and the upper cover plate are closed, the edging is located outside the bottom support plate and the middle plate.

[0008] The lower surface of the top cover plate is provided with a shallow groove for positioning the fabric, and the length direction of the shallow groove is perpendicular to the rotation direction of the top cover plate.

[0009] Furthermore, the middle plate is a convex plate, and the small rectangular blocks protruding from the convex plate are rotatably connected to the bottom support plate via a first spring hinge.

[0010] The top cover is rotatably connected to the bottom support plate via two second spring hinges located on either side of the rectangular block.

[0011] Both the first and second spring hinges include a hinge, a torsion spring, a pivot, and an open retaining ring. The pivot passes through the hinge and the torsion spring, and both ends of the pivot are provided with retaining grooves. An open retaining ring for preventing slippage is installed in the retaining grooves.

[0012] Furthermore, the first hinge and the second hinge are quick-release hinges. Both the first hinge and the second hinge are provided with a pivot that passes through the hinge and the torsion spring. Both ends of the pivot are provided with slots, and open retaining rings for preventing slippage are installed in the slots.

[0013] Furthermore, the U-shaped clamp has a downward parallel upper clamp and a lower clamp, both of which have positioning holes.

[0014] Furthermore, the bottom plate, middle plate, and top cover plate are all made of iron metal plates. A magnet is fixed on the lower surface of the top cover plate. When the top cover plate and the middle plate are molded together, the magnet does not interfere with the raising strip.

[0015] Furthermore, a height-increasing strip made of sponge or silicone is attached to the upper surface of the middle plate.

[0016] This utility model provides a clamping mechanism for positioning shirt cuff fabric. It employs a sandwich structure consisting of a bottom plate, a middle plate, and a top cover plate, forming two independent clamping areas. This solves the problem in existing technologies where two pieces of fabric easily interfere with each other, leading to displacement. It has the following advantages:

[0017] 1) Independent partition clamping to avoid displacement: The first piece of fabric can be placed between the bottom support plate and the middle plate and held in place by the middle plate. Then, the second piece of fabric is placed between the middle plate and the top cover plate and pressed down independently. The two pieces of fabric are fixed separately and do not interfere with each other, which significantly improves the alignment accuracy of the cuff sewing.

[0018] 2) Automatic closing and convenient operation: The middle plate and the top cover plate are connected to the bottom support plate by spring hinges. They can automatically close without external force by using torsion springs, reducing manual operation and improving fabric clamping efficiency.

[0019] 3) Strong fabric protection: The surface of the middle plate is equipped with sponge or silicone raising strips, which can form a flexible buffer when pressing the fabric, adapting to fabrics of different thicknesses and avoiding indentations or damage to the fabric.

[0020] 4) High positioning accuracy: The U-shaped clamp, together with the positioning hole and the positioning post on the rotating station, achieves precise positioning and quick clamping, ensuring stability during the switching process of the sewing station.

[0021] 5) Stable structure and easy maintenance: All three layers of plates are metal structures with high strength and long service life; quick-release hinges are used to facilitate assembly, disassembly and maintenance, and improve the applicability of the equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.

[0023] Figure 1 This is a structural diagram of a clamping mechanism for positioning shirt cuff fabric according to the present invention.

[0024] Figure 2 To hide Figure 1 A diagram showing the height increase bar in the image;

[0025] Figure 3 for Figure 2 Exploded structural diagram;

[0026] Figure 4 This is a schematic diagram of a quick-release spring hinge;

[0027] Figure 5 A process diagram showing the clamping mechanism that opens for the rotary station.

[0028] Explanation of reference numerals in the attached figures

[0029] Bottom plate - 5110; Middle plate - 5120; Top cover plate - 5130; Spring hinge - 5140; U-shaped clamp plate - 5111; Lower clamp plate - 5112; Upper clamp plate - 5113; Positioning hole - 5114; First through hole - 5115; Second through hole - 5116; Heightening strip - 5121; Leaning groove - 5122; Magnet - 5131; Edge binding - 5132; Hinge - 5141; Torsion spring - 5142; Rotating shaft - 5143; Open retaining ring - 5144. Detailed Implementation

[0030] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0031] To fully understand this utility model, detailed steps and structures will be presented in the following description to illustrate the technical solution of this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0032] Reference Figures 1-5As shown, this utility model provides a clamping mechanism for positioning shirt cuff fabric. The cuff fabric consists of two long strips of fabric, and the clamping mechanism can be detachably installed on a rotating station.

[0033] The clamping mechanism includes a sandwich structure of a bottom plate 5110, a middle plate 5120, and an upper cover plate 5130. One end of the middle plate 5120 and the upper cover plate 5130 are rotatably connected to the bottom plate 5110. The middle plate 5120 and the upper cover plate 5130 are rotatably connected to the bottom plate 5110 through spring hinges 5140. Under the action of the torsion spring of the spring hinges, the unforced middle plate 5120 and the upper cover plate 5130 are driven to close.

[0034] A U-shaped clamp 5111 is fixed to one end of the base plate 5110, and is detachably connected to the rotating station via the U-shaped clamp 5111. The rotating station is equipped with a cylinder transfer mechanism for the U-shaped clamp 5111. The specific cylinder transfer mechanism is not covered by this utility model and will not be described in detail here.

[0035] In an optional embodiment, the U-shaped clamping plate 5111 is provided with a downwardly parallel upper clamping plate 5113 and a lower clamping plate 5112, both of which are provided with tapered positioning holes 5114. The rotating station is provided with positioning pins that are inserted into the tapered positioning holes 5114 to achieve positioning between the rotating station and the sandwich clamping mechanism.

[0036] The bottom support plate 5110 is provided with a first through hole 5115 and a second through hole 5116. The first through hole 5115 is connected to the lower surface of the middle plate 5120. The middle plate 5120 is provided with a relief groove 5122 that coincides with the second through hole 5116. The second through hole 5116 is connected to the upper cover plate 5130 through the relief groove 5122. The upper surface of the middle plate 5120 is provided with a raising strip 5121. The raising strip 5121 can raise the height of the second layer of fabric, which helps to reduce the formation of wrinkles.

[0037] In an optional embodiment, the outer edge of the upper cover plate 5130 is provided with a downwardly curved edge 5132. When both the middle plate 5120 and the upper cover plate 5130 are closed, the edge 5132 is located outside the bottom support plate 5110 and the middle plate 5120, which provides a better clamping effect on the fabric.

[0038] In an optional embodiment, the middle plate 5120 is a convex plate, and the rectangular blocks protruding from the convex plate are rotatably connected to the bottom support plate 5110 via a first spring hinge. The top cover plate 5130 is rotatably connected to the bottom support plate 5110 via two second spring hinges located on both sides of the rectangular blocks. The two ends of the first and second spring hinges are fixedly connected to the bottom support plate 5110, the middle plate 5120, and the top cover plate 5130 by screws.

[0039] In an optional embodiment, the first and second spring hinges of this invention are quick-release hinges. Taking the first spring hinge as an example, it includes a hinge 5141, a torsion spring 5142, a pivot 5143, and an open retaining ring 5144. As shown in the figure, the pivot 5143 passes through the hinge 5141 and the torsion spring 5142. Both ends of the pivot 5143 are provided with retaining grooves, and an open retaining ring 5144 for preventing detachment is installed in the retaining grooves.

[0040] In an optional embodiment, the bottom plate 5110, the middle plate 5120 and the top cover plate 5130 are all iron metal plates. A magnet 5131 is fixed on the lower surface of the top cover plate 5130. When the top cover plate 5130 and the middle plate 5120 are molded together, the magnet 5131 and the raising strip 5121 do not interfere with each other.

[0041] In an optional embodiment, a heightening strip 5121 made of sponge or silicone is attached to the upper surface of the middle plate 5120.

[0042] After the sandwich structure clamping mechanism of this utility model is installed on the rotating station, the two sets of push rods on the rotating station pass through the first through hole 5115 and the second through hole 5116 respectively, acting on the middle plate 5120 and the upper cover plate 5130 to open the middle plate 5120 and the upper cover plate 5130 respectively. Figure 5 As shown. The related structures of the rotary workstation are not within the scope of protection of this utility model and will not be described in detail here.

[0043] This utility model adopts a sandwich clamping structure to form two independent clamping areas. The first piece of fabric is fed into the area between the bottom plate 5110 and the middle plate 5120 and the middle plate 5120 is closed to fix the first piece of fabric. Then, the second piece of fabric is fed into the area between the middle plate 5120 and the top cover plate 5130 and the top cover plate 5130 is closed.

[0044] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A clamping mechanism for positioning shirt cuff fabric, the shirt cuff fabric consisting of two long strips of fabric, the clamping mechanism being detachably mounted on a rotating station, characterized in that, The clamping mechanism includes a sandwich structure of a bottom plate, a middle plate, and an upper cover plate. One end of the middle plate and the upper cover plate are rotatably connected to the bottom plate, and the middle plate and the upper cover plate are rotatably connected to the bottom plate through spring hinges. Under the action of the torsion spring of the spring hinges, the unforced middle plate and the upper cover plate are driven to close. A U-shaped clamp is fixed to one end of the base plate. The bottom support plate is provided with a first through hole and a second through hole. The first through hole is connected to the lower surface of the middle plate. The middle plate is provided with a relief groove that coincides with the second through hole. The second through hole is connected to the upper cover plate through the relief groove. The upper surface of the middle plate is equipped with a heightening strip.

2. The clamping mechanism for positioning shirt cuff fabric as described in claim 1, characterized in that, The outer edge of the top cover plate is partially curved downwards. When both the middle plate and the top cover plate are closed, the edge is located outside the bottom support plate and the middle plate. The lower surface of the top cover plate is provided with a shallow groove for positioning the fabric, and the length direction of the shallow groove is perpendicular to the rotation direction of the top cover plate.

3. The clamping mechanism for positioning shirt cuff fabric as described in claim 1, characterized in that, The middle plate is a convex plate, and the small rectangular blocks protruding from the convex plate are rotatably connected to the bottom support plate via a first spring hinge. The top cover is rotatably connected to the bottom support plate via two second spring hinges located on either side of the rectangular block. Both the first and second spring hinges include a hinge, a torsion spring, a pivot, and an open retaining ring. The pivot passes through the hinge and the torsion spring, and both ends of the pivot are provided with retaining grooves. An open retaining ring for preventing slippage is installed in the retaining grooves.

4. The clamping mechanism for positioning shirt cuff fabric as described in claim 3, characterized in that, The first and second hinges are quick-release hinges. Both the first and second hinges are provided with a pivot that passes through the hinge and the torsion spring. Both ends of the pivot are provided with slots, and open retaining rings for preventing slippage are installed in the slots.

5. A clamping mechanism for positioning shirt cuff fabric as described in claim 1, characterized in that, The U-shaped clamp has an upper clamp and a lower clamp that are parallel to each other downwards, and both the upper clamp and the lower clamp have positioning holes.

6. A clamping mechanism for positioning shirt cuff fabric as described in claim 1, characterized in that, The bottom plate, middle plate, and top cover plate are all made of iron metal plates. A magnet is fixed on the lower surface of the top cover plate. When the top cover plate and the middle plate are molded together, the magnet does not interfere with the raising strip.

7. A clamping mechanism for positioning shirt cuff fabric as described in claim 1, characterized in that, The upper surface of the middle plate is covered with height-increasing strips made of sponge or silicone.

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