Flat bed machine presser foot for mounting pearl beading

Abstract

The utility model relates to a clothing sewing appliance, concretely is a flat bed sewing machine presser foot of installing pearl chain lace. The purpose is to provide a flat bed sewing machine presser foot of installing pearl chain lace, the presser foot should be able to ensure the sewing quality of pearl chain lace, and have the characteristics such as high work efficiency, convenient to use. Technical scheme is a flat bed sewing machine presser foot of installing pearl chain lace, including presser foot handle and the single side presser foot plate articulated in the lower end of presser foot handle, its characterized in that: the left side of single side presser foot plate is equipped with guide element, the guide element is half pipe shell shape, and the front end is provided with surrounding edge, and the top right side is provided with sewing mouth, the guide element is by a piece of sheet material bending into half pipe shell shape with the opening downward and front and back through, forms the pearl chain channel for pearl chain lace movement, and the axis of half pipe shell and single side presser foot plate keep an acute angle with the front and back direction.

Description

Technical Field

[0001] This utility model relates to garment sewing equipment, specifically a presser foot for a flat sewing machine for attaching beaded lace trim. Background Technology

[0002] Beaded and rhinestone lace, with their dazzling visual effect and three-dimensional decorative texture, are widely used in key areas of clothing fabrics such as necklines, hems, and cuffs of wedding dresses, gowns, and stage costumes. They are a core technique for enhancing the added value and aesthetics of garment products. Compared to conventional fabric splicing and sewing, beaded and rhinestone lace has a unique structure. Its long, strip-shaped base fabric surface is evenly covered with multiple hard, raised components such as beads or rhinestones, which presents a challenge for flatbed sewing machines.

[0003] Beaded lace (purchased component) needs to be fixed in a designated position on the fabric, usually by sewing. However, when using a traditional flatbed sewing machine, the hard protrusions on the beaded lace can directly obstruct the movement of the sewing needle, easily leading to needle bending, breakage, and other malfunctions. It can also cause quality issues such as beads chipping and rhinestones coming off the film. Therefore, for a long time, the sewing process between beaded lace and fabric has relied solely on hand sewing: the operator must hold the needle and thread, relying on experience to carefully pierce and sew the base fabric strip to the fabric, avoiding the positions of the beads and rhinestones, while ensuring the straightness of the stitching and the fit of the beaded lace to the fabric to prevent problems such as skewing or loosening.

[0004] It is evident that this hand-sewing process has several significant drawbacks: First, its production efficiency is extremely low. Hand-sewing the beaded lace on a single garment often takes several hours or even days, making it difficult to meet the needs of large-scale, mass-produced garments. Second, its processing precision is difficult to standardize. Differences in the hand gestures and skill levels of different operators result in inconsistent sewing quality of the finished beaded lace, leading to poor product consistency. Third, its labor costs remain high, and new employees require extensive training before they can start working. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings in the above-mentioned background technology and provide a presser foot for a flat sewing machine for installing beaded lace. This presser foot should be able to ensure the sewing quality of the beaded lace and have the characteristics of high work efficiency and ease of use.

[0006] The technical solution of this utility model is: A presser foot for a flat sewing machine with beaded lace trim includes a presser foot handle and a single-sided presser foot plate hinged to the lower end of the presser foot handle; characterized in that: a guide is provided on the left side of the single-sided presser foot plate; The guide is in the shape of a semi-tube shell, with a rim at the front end and a sewing opening on the top right side; The guide is made of a sheet of material bent into a semi-tube shape with the opening facing downward and the front and back open, forming a beaded channel for the movement of the beaded lace; the axis of the semi-tube maintains an acute angle with the front and back direction of the single-sided pressure foot plate.

[0007] The guide has a right-through sewing opening on the top rear side, which is aligned with and connected to the left-through sewing needle hole on the single-sided presser foot plate.

[0008] The right side of the guide is connected to the single-sided pressure foot plate via a welding part.

[0009] The surrounding edge is formed by bending outward from the front end of the guide member, thus creating a guide structure at the entrance of the channel.

[0010] The single-sided presser foot plate has a sewing needle hole on the left side. The needle hole passes through the left edge of the single-sided presser foot plate and connects to the sewing opening to expand the working range of the sewing needle.

[0011] The front end of the guide protrudes forward a certain distance beyond the front end of the single-sided pressure foot plate to facilitate the formation of the guide structure.

[0012] The beneficial effects of this utility model are: 1. This utility model adopts a structure that combines a single-sided presser foot plate with a guide component, which allows the sewing needle to accurately avoid hard protruding parts such as beads, thereby achieving precise sewing of beaded lace, greatly improving production efficiency (30-50 times that of manual operation), and reducing the skill requirements for operators.

[0013] 2. This utility model uses a guide with a surrounding edge, which can prevent the bead chain from shifting or falling off during the sewing process, ensuring the neatness of the finished stitches and the integrity of the appearance, thus ensuring product quality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model.

[0015] Figure 2 This is a schematic diagram of the main structure of an embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of the left-side structure of an embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram of the right side structure of an embodiment of this utility model.

[0018] Figure 5 This is a top view of an embodiment of the present invention.

[0019] Figure 6 This is a schematic diagram of the working principle of an embodiment of the present invention (top view).

[0020] Figure 7 This is a top view of the finished product processed according to an embodiment of the present invention.

[0021] Figure label: 1. Presser foot handle, 1.1. Hinge shaft, 2. Single presser foot plate, 2.1. Sewing needle hole, 3. Guide piece, 3.1. Sewing opening, 3.2. Beaded chain channel, 3.3. Welding part, 4. Sewing needle, 5. Sewing stitch, 6. Beaded chain lace, 7. Beads, 7.1. Fabric, 8. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 2 As shown, the definition Figure 2 The up, down, left, and right directions are the same as those in this embodiment. Figure 2 The direction perpendicular to the paper and pointing inwards is the front-to-back direction, which is also the direction of fabric feeding.

[0024] like Figure 1 As shown, a presser foot for a flat sewing machine with beaded lace trim includes a single presser foot and a guide 3 located on the left side of the single presser foot. The single presser foot is a conventional component, including a single presser foot plate 2 with a front that is inclined upwards and a presser foot handle 1 hinged to the upper end of the single presser foot plate 2. The guide 3 is located on the left side of the single presser foot plate.

[0025] like Figure 1 , Figure 2 As shown, the guide member is in the shape of a semi-tubular shell (an incomplete tubular shell cut parallel to the generatrix), and has a sewing opening 3.1 and a surrounding edge 3.2. The guide member is formed by bending a piece of sheet material (preferably stainless steel sheet in this embodiment), forming a semi-tubular shell with the opening facing downwards and extending through the front and back, thus serving as a beaded chain channel 3.3 to define the movement path of the beaded chain lace. The axis of the semi-tubular shell maintains an acute angle (preferably 5-30 degrees) with the front-back direction of the single-sided presser foot. The right side of the guide member is welded to the single-sided presser foot via a welding part 4; the front-back direction of the single-sided presser foot is parallel to the fabric feeding direction. With the above structure, the beaded chain lace can easily enter the beaded chain channel from the opening at the front end of the semi-tubular shell.

[0026] like Figure 2 and Figure 5As shown, the surrounding edge is located at the front end of the guide member and is formed by bending outward from the edge of the right side wall of the semi-tube shell to guide the beaded lace as it enters the beaded lace channel. The interior of the surrounding edge forms a smooth arc-shaped structure, thereby reducing the movement resistance of the beaded lace. The surrounding edge on the right side of the front end of the guide member also extends towards the single-sided presser foot plate, and the extended surrounding edge is lower than the bottom surface of the upturned part of the front end of the single-sided presser foot plate to ensure smooth movement of the beaded lace. The front end of the guide member protrudes forward a certain distance beyond the front end of the single-sided presser foot plate to optimize the guiding effect of the guide structure. Through the above structure, the beaded lace can be guided and constrained before entering the beaded lace channel to ensure that the beaded lace matches the set installation position on the fabric 8.

[0027] like Figure 1 , Figure 4 and Figure 5 As shown, the guide member has a right-through sewing opening 3.1 on its top rear side. This sewing opening is aligned with and connects to the left-through sewing needle hole on the single-sided presser foot plate, thus expanding the insertion area of ​​the sewing needle and preventing interference between the sewing needle and the guide member. During operation, after the beaded lace enters the beaded channel below the half-tube shell, it is constrained and limited by the half-tube shell, and can only move forward and cannot slide left or right. When it moves to the sewing opening, the sewing needle can be inserted into the base strip of the beaded lace to sew it to the fabric.

[0028] Preferably, the width of the sewing opening (i.e., the dimension parallel to the fabric feed direction) is smaller than the diameter of the beads on the beaded lace, so as to prevent the beads from hanging out of the sewing opening during the sewing operation.

[0029] like Figure 5 As shown, a sewing needle hole 2.1 is provided on the left side of the single-sided presser foot plate. The left side of the needle hole extends through the left edge of the single-sided presser foot plate and connects to the sewing opening. The enlarged sewing needle hole makes it easier for the sewing needle to reciprocate during sewing operations.

[0030] The single-sided presser foot plate and presser foot handle are hinged together by hinge shaft 1.1, allowing them to swing within a certain range; the presser foot handle is fixed to the presser foot bar of the flat sewing machine by bolts. During sewing, the single-sided presser foot plate moves up and down with the reciprocating piercing motion of the flat sewing machine. Driven by the feed dog below the presser foot plate, the single-sided presser foot plate swings slightly around the hinge shaft to achieve the fabric feeding motion. These are all basic common sense.

[0031] like Figure 5 and Figure 6 As shown, the working principle of this utility model is as follows: 1. Install the presser foot: Align the fork of presser foot handle 1 with and insert it into the fixing screw of the presser foot bar of the flat sewing machine, and then tighten the fixing screw; 2. Align the fabric: Raise the presser foot bar of the flat sewing machine, place the fabric to be sewn under the presser foot bar, align it with the sewing position, and then lower the presser foot bar of the flat sewing machine to hold the fabric in place. 3. Inputting beaded lace: Feed the beaded lace 7 into the beaded channel 3.3 from the front end of the guide 3, and start the flat sewing machine; under the drive of the feed dog of the flat sewing machine, the beaded lace 7 entering the beaded channel 3.3 moves synchronously with the fabric 8 along the feed direction; the sewing needle 5 carrying the sewing thread pierces up and down, passing through the sewing needle hole 2.1 and the sewing opening 3.1, and is tied to the base fabric strip of the beaded lace 7, forming a sewing stitch 6 that sews the beaded lace 7 and the fabric 8 together; 4. The beaded lace is continuously fed into the beaded channel, and the flat sewing machine runs continuously to obtain a product with neat stitches and intact beaded lace.

[0032] The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention.

Claims

1. A presser foot for a flat sewing machine with beaded lace trim, comprising a presser foot handle (1) and a single-sided presser foot plate (2) hinged to the lower end of the presser foot handle; characterized in that: The left side of the single-sided pressure foot plate is provided with a guide (3); The guide is in the shape of a semi-tube shell, with a rim (3.2) at the front end and a sewing opening (3.1) at the rear top. The guide is made of a sheet of material bent into a semi-tube shape with the opening facing down and the front and back connected, forming a beaded channel (3.3) for the movement of the beaded lace (7); the axis of the semi-tube maintains an acute angle with the front and back direction of the single-sided presser foot.

2. The presser foot of the flat sewing machine for installing beaded lace as described in claim 1, characterized in that: The guide has a right-through sewing opening (3.1) on the top rear side, which is aligned with and connected to the left-through sewing needle hole (2.1) on the single-sided presser foot plate.

3. The presser foot of the flat sewing machine for installing beaded lace as described in claim 2, characterized in that: The right side of the guide is connected to the single-sided pressure foot plate via a welding part (4).

4. The presser foot of the flat sewing machine for installing beaded lace as described in claim 3, characterized in that: The surrounding edge is formed by bending outward from the front end of the guide member, thus creating a guide structure at the entrance of the channel.

5. The presser foot of the flat sewing machine for installing beaded lace as described in claim 4, characterized in that: The single-sided presser foot plate has a sewing needle hole (2.1) on the left side. The needle hole passes through the left edge of the single-sided presser foot plate and connects to the sewing opening to expand the working range of the sewing needle.

6. The presser foot of a flat sewing machine for installing beaded lace as described in claim 5, characterized in that: The front end of the guide protrudes forward a certain distance beyond the front end of the single-sided pressure foot plate to facilitate the formation of the guide structure.

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