A sword head pendant template and a sword head pendant sewing method
By introducing a convex-concave mating structure of push-bend and avoidance notch into the sword-head loop template, the problem of irregular loop end angles was solved, achieving smoothness and regularity of loop end angles and improving the preparation quality of sword-head loops.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU SUNSHINE GRP CO LTD
- Filing Date
- 2023-02-02
- Publication Date
- 2026-05-26
AI Technical Summary
The existing template cannot effectively cover the corners of the sword-head loop, resulting in irregular and blunt corners and a loose loop surface, which is more obvious on stiff or slippery fabrics.
The structure employs a convex-concave fit structure with a push-fold section and an avoidance notch. The push-fold and avoidance are achieved through the first and second insert plates in the translation channel within the layer, ensuring the pressing of the loop end corner. The clamping force is enhanced by the shaping pressure plate and magnetic suction components to prevent edge displacement.
This achieved a smooth and regular shape at the tip of the loop, ensuring the consistency and straightness of the sword-head loop's shape and improving the manufacturing quality of the sword-head loop.
Smart Images
Figure CN116240681B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of garment manufacturing auxiliary devices, specifically to a sword-head loop template and a method for sewing sword-head loops. Background Technology
[0002] The sword-head loop has a loop head and a loop tail. The distance between the paired loop sides is the loop width, with the loop head being wider than the loop tail. The loop head is composed of one loop side, two loop end edges, and another loop side connected in sequence. Common double-sided sword-head loops include two types: one is made using a single piece based on a loop template disclosed in CN114990805A, with a folded edge on both sides; the other is made by folding, overlapping, and sewing two pieces separately, without a folded edge. In the overlapping structure of the two folded pieces, when the outer contour of the first folded piece is located outside the outer periphery of the second folded piece, a bread-shaped sword-head loop, often used for horse belts and foot loops, is produced.
[0003] The movable inserts in existing templates, such as those disclosed in CN113550084A, CN211199644U, and CN203065799U, have the same folding edge shape as the fixed insert edge, and the folding edges opposite to the side drawout of the fixed insert are all straight edges corresponding to the bottom of the bag, etc.; the folding edge is L-shaped, and the folding direction is between the included angles of the L-shaped folding edges. The above movable inserts are not suitable for bread-shaped sword-head loops because: when two movable inserts are set in the same layer, without increasing the number of movable inserts, setting the folding edge of the movable insert to correspond to the side edge and end edge of each loop, the folding edge of the movable insert cannot be directly aligned with the end edge of the entire loop along the translation direction. That is, the movable insert cannot be folded and pressed against the end corner of the loop, which is not conducive to producing a sword-head loop with regular, sharp, and flat end corners. Summary of the Invention
[0004] One of the objectives of this invention is to overcome the defects in the prior art and provide a sword tip loop template. By utilizing the concave-convex fit structure of the push-fold part and the avoidance notch, the first insert plate and the second insert plate fully cover the end corner of the loop, which helps to optimize the flatness and regular sharp shape of the end corner of the loop.
[0005] To achieve the above-mentioned technical effects, the technical solution of the present invention is as follows: a sword-head loop template, comprising two removable, stacked loop face template groups, wherein the loop face template group comprises:
[0006] The positioning recess is set in the bottom plate layer, and a lateral opening is provided in the same layer. A needle groove is provided through the bottom surface, and the edge includes the side edges and end edges of the two loops connected in a U-shape.
[0007] A shaping pressure plate, which can be removed and embedded in the positioning recess and the side opening;
[0008] An intralayer translation channel is stacked with the base plate layer;
[0009] The first insert plate and the second insert plate are respectively disposed on the center sides of the positioning recess, and have push-fold edges corresponding to the side edge and end edge of each of the loops. They are disposed in the translation channel within the layer and translate along the translation channel within the layer. The included angle between the first ends of the two loop end edges is the loop head angle. The first insert plate is provided with a push-fold part. The second insert plate is provided with an avoidance notch. Both the push-fold part and the avoidance notch are directly opposite the first end along the translation direction.
[0010] A preferred technical solution is that both the push-fold portion and the avoidance notch are angled shapes formed by the combination of the first side and the second side.
[0011] A preferred technical solution is that the two ends of the needle groove are spaced apart from each other, and a first magnetic element is provided in the area enclosed by the positioning recess bottom surface of the needle groove.
[0012] A preferred technical solution is that the lateral opening is disposed opposite to the end angle of the loop, the width direction of the lateral opening is a first direction, and the shaping pressure plate is composed of at least two pressure plate units arranged side by side along the first direction; the pressure plate unit includes a first pressure plate unit, the first pressure plate unit having a first side opposite to each other along the first direction; the first side is parallel to each other, or the distance between the first side gradually increases along the direction from the end angle of the loop to the lateral opening.
[0013] A preferred technical solution is that the splicing seam of the pressure plate unit is offset from the end angle of the loop.
[0014] A preferred technical solution is that the shaping pressure plate is composed of a first pressure plate unit and a second pressure plate unit spliced together, and the fitting part of the loop end corner is disposed in the second pressure plate unit; the first insert plate and the second pressure plate unit are disposed on the same side along the first direction.
[0015] A preferred technical solution is that the loop template group is provided with a stacked positioning component.
[0016] A preferred technical solution is that the shaping plate is provided with a second magnetic attracting element, which magnetically engages with the first magnetic attracting element.
[0017] A preferred technical solution is that the first pressure plate unit is located on the same side of the first direction of the stacked structure of the loop template group.
[0018] The second objective of this invention is to provide a method for sewing a sword tip loop, comprising the following steps:
[0019] S1: Lay the loop face piece in the positioning recess, press the shaping plate on the area directly opposite the positioning recess of the loop face piece, fold it over the shaping plate in sequence to cover the edge of the loop end and the side of the loop, and move the first insert plate and the second insert plate until they are pressed over the edge of the piece and the folded part and the avoidance notch are in convex-concave fit.
[0020] S2: After assembling the overlapping loop template group, remove the shaping pressure plate from the lateral opening of the positioning recess;
[0021] S3: Reset the first and second insert plates to the side of the positioning recess;
[0022] S4: Press the cut piece of the loop face between the two loop face template groups along the seam needle groove.
[0023] The advantages and beneficial effects of this invention are as follows:
[0024] The sword-head loop template has a reasonable structure. By setting push-folding parts and avoidance notches on the first and second inserts that are translating along the inner layer, the push-folding parts and avoidance notches are used to push and fold the loop end corners of the two inserts and fully cover them. This ensures that the cut pieces form sharp and regular loop end corners. During the stacking of the loop surface template group, removal of the shaping pressure plate and pressing, the loop end corners are kept flat and the folded edges do not undergo relative displacement. The sword-head loops made by the template have a flat surface, regular shape and high product consistency. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of the loop template group in the prior art;
[0026] Figure 2 This is a schematic diagram of the structure of the loop template assembly in the embodiment;
[0027] Figure 3 yes Figure 2 Schematic diagram of the structure of the first and second insert plates;
[0028] Figure 4 yes Figure 2 A schematic diagram of the structure in which the first and second insert plates are pushed and pressed onto the folded edge of the loop fabric piece;
[0029] Figure 5 yes Figure 4 Schematic diagram of the structure of the first and second insert plates;
[0030] Figure 6 This is a schematic diagram of the unfolded structure of the two loop face template groups in the sword head loop template of the embodiment;
[0031] Figure 7 This is another unfolded structural diagram of the two loop face template groups in the sword head loop template of the embodiment;
[0032] In the diagram: 1. Positioning recess; 11. Loop side; 12. Loop end; 2. Shaping pressure plate; 21. First pressure plate unit; 22. Second pressure plate unit; 23. Second magnetic suction component; 3. In-layer translation channel; 4. First insert plate; 41. Push-fold part; 5. Second insert plate; 51. Avoidance notch; 6. Lateral opening; 7. Bottom plate layer; 71. Needle groove; 72. First magnetic suction component; 8. Stacking positioning component; b. Movable insert plate. Detailed Implementation
[0033] The specific embodiments of the present invention will be further described below with reference to examples. These examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0034] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating orientation or positional relationship are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0035] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0036] Example
[0037] like Figure 2-7As shown, the sword-head loop template of the embodiment includes two removable, stacked loop face template groups. Each loop face template group includes a positioning recess 1, a shaping pressure plate 2, an in-layer translation channel 3, a first insert plate 4, and a second insert plate 5. The positioning recess 1 is located on the bottom plate layer 7, and has a lateral opening 6 connected to it. A needle groove 71 is provided through the bottom surface of the positioning recess 1. The edge of the positioning recess 1 includes two loop side edges 11 and two loop end edges 12 connected in a U-shape. The shaping pressure plate 2 is removably embedded in the positioning recess 1 and the lateral opening 6. The in-layer translation channel 3 is connected to the bottom plate layer 7. The plates 7 are stacked together; the first insert plate 4 and the second insert plate 5 are respectively disposed on the center sides of the positioning recess 1. The first insert plate 4 and the second insert plate 5 have push-fold edges corresponding to the side edge 11 and the end edge 12 of each loop. The first insert plate 4 and the second insert plate 5 are disposed in the inner translation channel 3 and translate along the inner translation channel 3. The included angle of the first end of the two loop end edges 12 is the loop end angle α. The first insert plate 4 is provided with a push-fold part 41. The second insert plate 5 is provided with an avoidance notch 51. Both the push-fold part 41 and the avoidance notch 51 are directly opposite the first end in the translation direction.
[0038] Figure 1 The diagram shows a movable insert b in the prior art. When the movable insert b moves in the direction indicated by the arrow in the diagram until two movable inserts b of the same layer abut each other, the shaded area in the diagram is the area where the movable insert b presses against the positioning recess 1. The folding edge of the movable insert b is neither folded nor pressed against the loop end corner a in the diagram. This directly results in the folded edge at the loop end corner not being clamped between the movable insert b and the bottom plate layer 7. Even if the operator tightens and folds the cut piece to determine the folded edge, the pressure is insufficient due to the small pressing area of the movable insert b on the folded edge (the pressing width of the folded edge on the loop side 11 and the loop end 12 is small), which will also cause the folded edge to shift. This results in problems such as the loop end angle becoming rounded, the loop surface becoming loose, and the loop end shape becoming irregular on the sword-head loop. In addition, in the bread-shaped sword-head loop structure, the loop surface with a larger area has a correspondingly larger folded edge width to meet the requirements of the seam connection. Insufficient clamping force of the movable insert plate b and the bottom plate layer 7 on the loop surface will also cause displacement and deformation of the loop side 11 folded edge. In particular, stiff fabrics such as denim and smooth fabrics that are easy to slip will show problems such as the loop side 11 being uneven and not straight on the sword-head loop.
[0039] based on Figure 1 The movable insert b in the middle is modified from the upward tilting translation direction to the vertical upward direction of the dashed arrow. The push-fold edge corresponding to the loop end edge 12 of the movable insert b can cover more of the loop head corner, but the push-fold edge corresponding to the loop side edge 11 cannot cover the loop side edge 11.
[0040] like Figure 2-4 As shown, Figure 2 The first insert plate 4 and the second insert plate 5 are located to the side of the positioning recess 1. Figure 2 The relative positions of the first insert plate 4 and the second insert plate 5 are shown in the figure. Figure 3, Figure 4 The first insert plate 4 and the second insert plate 5 extend above the positioning recess 1 and press against the folded edge of the loop face piece.
[0041] The embodiment, without increasing the number of inserts or changing the folding direction of the inserts, utilizes the concave-convex fit between the folding part 41 and the avoidance notch 51 to increase the translational stroke of the first insert 4 and the second insert 5 in folding the edge of the cut piece, thereby increasing the area of the first insert 4 and the second insert 5 pressed against the folded edge of the cut piece. Furthermore, the combination of the first insert 4 and the second insert 5 can completely press against the loop side edge 11 and loop end edge 12 of the positioning recess 1, overcoming... Figure 1 The problem of the movable insert plate b being empty at point a is addressed. When the loop face piece is clamped between the insert plate and the bottom plate layer 7, it is ensured that the folded edge does not undergo relative displacement. The sword-head loop has a regular shape, with the straight loop side 11 and loop end 12 being straight and the loop end angle a being flat.
[0042] Optionally, the loop end edge 12 can be straight or curved, and the loop end angle α can be rounded. The in-layer translation channel 3 is composed of an upper plate layer, a lower plate layer, and a sandwich panel layer stacked together. The sandwich panel layer is composed of sandwich panels arranged at intervals. The first insert plate 4 and the second insert plate 5 are on the same layer as the sandwich panel layer and are arranged in the intervals of the sandwich panel layer.
[0043] like Figure 3 , 5 As shown, in another preferred embodiment, both the push-down portion 41 and the clearance notch 51 are angled shapes formed by the combination of a first side and a second side. Further, the first side of the push-down portion 41 coincides with the loop end edge 12, and the second side of the push-down portion 41 coincides with the translation direction; the first side of the clearance notch 51 coincides with the translation direction, the angle between the first side and the second side of the clearance notch 51 is a first included angle α, and the angle between the first side and the second side of the push-down portion 41 is a second included angle β. The first included angle α is equal to or greater than the second included angle β, and in the figure, the first included angle α is greater than the second included angle β.
[0044] like Figure 2 , 6 As shown, in another preferred embodiment, the two ends of the needle groove 71 are spaced apart from each other, and a first magnetic member 72 is provided in the area enclosed by the bottom surface of the positioning recess 1 needle groove 71. In the figure, the needle groove 71 is U-shaped, and the two ends of the U-shaped needle groove 71 are spaced apart from each other. The first magnetic members 72 of the two loop template groups attract each other, which helps to increase the clamping force on the folding piece of the cut piece between the two loop template groups, and further reduces the displacement of the folding edge during the use of the template.
[0045] like Figure 7As shown, in another preferred embodiment, the lateral opening 6 is positioned opposite to the loop end angle a, and the width direction of the lateral opening 6 is a first direction (the direction of the double arrows in the figure). The shaping pressure plate 2 is composed of at least two pressure plate units arranged side by side along the first direction; the pressure plate unit includes a first pressure plate unit 21, which has first side edges opposite each other along the first direction; the first side edges are parallel to each other, or as shown in the figure. Figure 7 In the middle, the spacing of the first side gradually increases along the direction from the end corner of the loop to the lateral opening.
[0046] When the width of the first pressure plate unit 21 in the first direction along the direction from the loop end angle a to the side opening 6 is a fixed value, this fixed value is less than the width of the side opening 6, the sides of the opposing pressure plate units in the first direction are parallel to each other, and the pressure plate unit is smoothly pulled out through the side opening 6; when the width of the first pressure plate unit 21 in the first direction along the direction from the loop end angle a to the side opening 6 gradually increases, such as Figure 7 As shown, the opposite sides of the first pressure plate unit in the first direction have a trapezoidal waist structure, and the pressure plate unit can also be easily pulled out through the side opening 6. Compared with the fixed width, the second scheme has less friction between the side of the first pressure plate and the folded edge, which is more conducive to maintaining the position of the folded edge.
[0047] like Figure 7 As shown, in another preferred embodiment, the seam of the pressure plate unit is offset from the loop end angle a. The entire pressure plate unit is removed from the loop end angle a, which helps to maintain the shape of the folded edge at the loop end angle. The seam of the pressure plate unit is split at the loop end edge 12, and the effect of tightening the loop surface fabric is distributed across the seam, which helps to reduce the wear of the pressure plate unit. Conversely, when the seam of the pressure plate unit is split at the loop end angle a, the operator will habitually tighten the loop surface fabric when manually folding the edge of the cut piece, increasing the friction of the pressure plate unit at the seam of the loop end angle a and the wear between the pressure plate units. After long-term use, the seam of the pressure plate unit will be smaller than the loop end angle a, thereby shortening the service life of the pressure plate unit.
[0048] like Figure 7 As shown, in another preferred embodiment, the shaping pressure plate 2 is composed of a first pressure plate unit 21 and a second pressure plate unit 22 spliced together, and the fitting part of the loop end angle a is disposed on the second pressure plate unit 22; the first insert plate 4 and the second pressure plate unit 22 are disposed on the same side along the first direction.
[0049] like Figure 7As shown, the first direction is the left-right direction. "Setting up on the same side along the first direction" means that when the second pressure plate unit 22 is located to the right of the first pressure plate unit 21, the first insert plate 4 is located to the right of the second insert plate 5; conversely, when the second pressure plate unit 22 is located to the left of the first pressure plate unit 21, the first insert plate 4 is located to the left of the second insert plate 5. When the first insert plate 4 and the second insert plate 5 extend and press against the folded edge of the loop face piece, the first insert plate 4 presses against the second pressure plate unit 22, further improving the smoothness of the pressing at the loop head corner.
[0050] like Figure 6-7 As shown, in another preferred embodiment, each loop template group is provided with a stacking positioning element 8. The stacking positioning element 8 is used to position the relative position of the two loop template groups to ensure accurate positioning of the two loops and improve the stacking efficiency of the two loop template groups. The stacking positioning element 8 is one type of positioning element or a combination of two or more positioning elements, and can be selected as a panel concave-convex positioning element or a magnetic element disposed on the loop template group. Furthermore, the two loop template groups are stacked through a hinge, and the hinge also has a basic stacking positioning function.
[0051] like Figure 7 As shown, in another preferred embodiment, the shaping pressure plate 2 is provided with a second magnetic absorbing member 23, which magnetically engages with the first magnetic absorbing member 72. The first magnetic absorbing member 72 and the second magnetic absorbing member 23 interact to form a stacked and tightly pressed structure of the first magnetic absorbing member 72, the loop cut piece, the second magnetic absorbing member 23, the cut piece folding edge, the first insert plate 4, and the second insert plate 5 on a single loop template group, which is beneficial for fixing the position of the loop cut piece and reducing the displacement of the folding edge. The second magnetic absorbing member 23 is respectively disposed on the first pressure plate unit 21 and the second pressure plate unit 22.
[0052] like Figure 7 As shown, in another preferred embodiment, the first pressure plate unit 21 is located on the same side of the first direction of the loop template group stacked structure. The first pressure plate unit 21 is first pulled out through the lateral opening 6. After the first pressure plate unit 21 of one loop template group is pulled out, in the two loop template group stacked structures containing loop cut piece folding pieces, the corresponding insert plate deforms towards the loop template group from which the first pressure plate unit 21 is pulled out. The stacking pressure of the loop cut piece, the first pressure plate unit 21 and the cut piece folding piece of the other loop template group is reduced, the first pressure plate unit 21 is pulled out more smoothly and does not affect the loop end angle α. Conversely, the first pressure plate units 21 are staggered in the two loop template groups. When the two first pressure plate units 21 are pulled out, the flatness deviation of the part of the first insert plate 4 and the second insert plate 5 covering the cut piece folding piece will occur, causing the loop side 11 to shift.
[0053] The method for sewing the sword tip loop includes the following steps:
[0054] S1: Lay the loop face piece in the positioning recess 1, press the shaping plate 2 on the area directly opposite the positioning recess 1 of the loop face piece, fold it over the shaping plate 2 in sequence to cover the edge of the loop end 12 and the loop side 11, and move the first insert plate 4 and the second insert plate 5 until they are pressed over the edge of the piece and the push-fold part 41 and the avoidance notch 51 are in concave-convex fit.
[0055] S2: After assembling the overlapping loop template group, remove the shaping pressure plate 2 from the lateral opening 6 of the positioning recess 1;
[0056] S3: Reset the first insert plate 4 and the second insert plate 5 to the side of the positioning recess 1;
[0057] S4: Press the stitch between the two loop template groups along the stitch groove 71.
[0058] Furthermore, based on the preferred sword-head loop template structure, the order of removing the shaping pressure plate 2 is as follows: first, remove the first pressure plate unit 21 located on the same side of the first direction of the loop template group stacked structure, and then remove the second pressure plate unit 22 located on the same side of the first direction of the loop template group stacked structure.
[0059] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A sword-head loop template, comprising two removable, stacked loop face template groups, wherein the loop face template groups include: The positioning recess is set in the bottom plate layer, and a lateral opening is provided in the same layer. A needle groove is provided through the bottom surface, and the edge includes the side edges and end edges of the two loops connected in a U-shape. A shaping pressure plate, which can be removed and embedded in the positioning recess and the side opening; An intralayer translation channel is stacked with the base plate layer; A first insert plate and a second insert plate are respectively disposed on both sides of the center of the positioning recess, and have push-fold edges corresponding to the side edge and end edge of each of the loops. They are translatably disposed in the translation channel within the layer and translate along the translation channel within the layer. The first end angle of the two loop end edges is the loop head angle. The first insert plate is provided with a push-fold portion. The second insert plate is provided with an avoidance notch. Both the push-fold portion and the avoidance notch are directly opposite the first end angle along the translation direction. Both the push-bend and the clearance notch are angled shapes formed by the combination of a first side and a second side; the first side of the push-bend is consistent with the end of the loop, and the second side of the push-bend is consistent with the translation direction; the first side of the clearance notch is consistent with the translation direction, the angle between the first side and the second side of the clearance notch is a first angle, and the angle between the first side and the second side of the push-bend is a second angle, wherein the first angle is equal to or greater than the second angle.
2. The sword-head loop template according to claim 1, characterized in that, The two ends of the needle groove are spaced apart from each other, and the positioning recessed bottom surface of the needle groove is provided with a first magnetic attractor.
3. The sword-head loop template according to claim 1, characterized in that, The lateral opening is positioned opposite to the end angle of the loop, and the width direction of the lateral opening is a first direction. The shaping pressure plate is composed of at least two pressure plate units arranged side by side along the first direction. The pressure plate unit includes a first pressure plate unit. The first pressure plate unit has a first side that is opposite to each other along the first direction. The first side is parallel to each other, or the distance between the first side gradually increases along the direction from the end angle of the loop to the lateral opening.
4. The sword-head loop template according to claim 3, characterized in that, The joint of the pressure plate unit is offset from the end corner of the loop.
5. The sword-head loop template according to claim 3, characterized in that, The shaping pressure plate is composed of a first pressure plate unit and a second pressure plate unit spliced together, and the insert part of the loop end corner is provided in the second pressure plate unit; the first insert plate and the second pressure plate unit are arranged on the same side along the first direction.
6. The sword-head loop template according to claim 3, characterized in that, Each of the loop template groups is provided with a stacked positioning component.
7. The sword-head loop template according to claim 2, characterized in that, The shaping plate is provided with a second magnetic attractor, which magnetically engages with the first magnetic attractor.
8. The sword-head loop template according to claim 3, characterized in that, The first pressure plate unit is located on the same side of the first direction of the stacked structure of the loop template group.
9. A method for sewing a sword tip loop, characterized in that, Based on the sword-head loop template according to any one of claims 1-8, the method includes the following steps: S1: Lay the loop face piece in the positioning recess, press the shaping plate on the area directly opposite the positioning recess of the loop face piece, fold it over the shaping plate in sequence to cover the edge of the loop end and the side of the loop, and move the first insert plate and the second insert plate until they are pressed over the edge of the piece and the folded part and the avoidance notch are in convex-concave fit. S2: After assembling the overlapping loop template group, remove the shaping pressure plate from the side opening of the positioning recess; S3: Reset the first and second insert plates to the side of the positioning recess; S4: Press the cut piece of the loop face between the two loop face template groups along the seam needle groove.