A universal zipper sewing mold and its zipper sewing method

Abstract

The present invention discloses a universal zipper sewing mold and a zipper sewing method thereof, and relates to the technical field of clothing manufacturing. The mold disclosed in the present invention comprises a bottom plate, a middle plate and a cover plate arranged in sequence from bottom to top, and the bottom plate is rotatably connected to the same side of the middle plate and the cover plate respectively; it is characterized in that: a zipper groove is provided on the side of the middle plate close to the rotation connection; a plurality of eat-away strips are provided on the upper surface of the middle plate or the lower surface of the cover plate; a plurality of eat-away grooves matching the eat-away strips are correspondingly provided on the lower surface of the cover plate or the upper surface of the middle plate; the present invention also discloses a method for zipper sewing using the mold. The universal zipper sewing mold and the zipper sewing method adopted by the present invention are suitable for zipper sewing of front placket pieces that require shrinkage seams, so that the processed front placket is flat and the shrinkage seams are uniform, with good quality; and the processing efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of clothing manufacturing, and in particular to a universal zipper sewing mold and a zipper sewing method thereof. Background Art

[0002] Many jackets need to have zippers on their front lapels. The traditional method of sewing zippers is to first place the front door pieces and the zipper sewing position, sew with a flat-bed sewing machine, and then sew. After sewing, the front door and the zipper are not stretched evenly, and the chest pockets and large pockets on the left and right front doors are not easy to be completely symmetrical after the zipper is closed, making it difficult to ensure product quality.

[0003] In order to solve this problem, patents CN108998901A and CN204467038U proposed a mold for sewing the front door zipper of a jacket, which uses a three-layer structure template to fix the cut pieces and the zipper, and then sews the cut pieces and the zipper together, thereby improving production efficiency and making the processed front placket flat. However, this universal zipper sewing mold cannot meet the requirements of shrinkage processing effect of some jacket cut pieces during zipper processing, and still needs to manually control the shrinkage, resulting in uneven shrinkage, which affects product quality. Summary of the invention

[0004] The purpose of the present application is to overcome the above-mentioned deficiencies in the prior art and to provide a universal zipper sewing mold suitable for cutting pieces requiring shrinkage seams.

[0005] The present application also provides a zipper sewing method.

[0006] In order to achieve the above-mentioned invention objectives, the present application provides the following technical solutions: a universal zipper sewing mold comprises a bottom plate, a middle plate and a cover plate which are arranged in sequence from bottom to top, and the bottom plate is rotatably connected to the same side of the middle plate and the cover plate respectively; a zipper groove is arranged on the side of the middle plate close to the rotational connection; a plurality of eating strips are evenly arranged on the upper surface of the middle plate or the lower surface of the cover plate; a plurality of eating grooves matching the eating strips are correspondingly arranged on the lower surface of the cover plate or the upper surface of the middle plate.

[0007] In the above technical solution, the universal zipper sewing mold is provided with a tension strip and a tension groove. Through the mutual clamping of the tension groove and the tension strip, the cut pieces to be processed and requiring shrinkage seams are shortened into a wavy shape, and then sewn to achieve shrinkage seams; the shrinkage seams of the two cut pieces on both sides of the zipper are different, which is suitable for the processing of tops with multi-layer front plackets and requiring shrinkage seams on a certain layer. The front placket processed with this structure ensures that the layer of cut pieces that do not require shrinkage seams is flat, and at the same time makes the shrinkage seams of the layer of cut pieces that require shrinkage seams uniform, thereby improving processing efficiency and ensuring product quality.

[0008] Furthermore, the eating strip is detachably or slidably connected to the middle plate or the cover plate, so that the number of eating strips on the middle plate or the cover plate can be adjusted or the eating amount can be adjusted, thereby realizing the adjustment of the eating amount of the piece to be processed, making it suitable for front placket processing with different eating amount requirements.

[0009] Furthermore, a plurality of adjustment grooves are provided on the upper surface of the middle plate or the lower surface of the cover plate; the depth of the adjustment grooves gradually increases from the end close to the zipper groove to the end away from the zipper groove; the eater bar is embedded in the adjustment groove and can slide along the adjustment groove. The eater bar height can be adjusted by pushing the eater bar, thereby adjusting the eater amount of the cut piece laid on the middle plate; the adjustment range is larger, and the eater amount adjustment is more precise; at the same time, the eater bar does not need to be removed from the middle plate during the adjustment process, avoiding the problem of the eater bar being scattered and lost after being removed.

[0010] Furthermore, double-sided cloth-based adhesive is provided between adjacent strips, so as to fix the cut pieces to be processed on the middle plate and fix the cutting amount; at the same time, displacement of the cut pieces during processing is also avoided, which affects the product quality.

[0011] Furthermore, at least one zipper head notch is provided on the side wall of the zipper groove for positioning the zipper so that the zipper is placed accurately, thereby avoiding uneven zipper positions caused by different people placing the zipper, which affects subsequent processing and product quality.

[0012] Preferably, a plurality of zipper head notches are provided, so that the zipper head notches are suitable for sewing zippers of different lengths.

[0013] Furthermore, the cover plate and the bottom plate are both provided with corresponding sewing seams; the sewing seams are provided corresponding to the zipper slot and extend along the long direction of the zipper slot. The width of the sewing seam is smaller than the width of the zipper slot, which limits the position of the zipper sewing, makes the zipper sewing position uniform, and also ensures that the zipper sewing line is straight.

[0014] Furthermore, a fixing strip is arranged in the middle of the bottom plate; the middle plate comprises a first middle plate and a second middle plate; the first middle plate and the second middle plate are respectively located on both sides of the fixing strip, and one side of the first middle plate and the second middle plate are respectively rotatably connected to both sides of the fixing strip; the first middle plate and the second middle plate are respectively provided with a first zipper groove and a second zipper groove at one end close to the fixing strip; the first middle plate and the second middle plate are both provided with a plurality of the eating strips or the eating grooves; the cover plate comprises a first cover plate and a second cover plate, the first cover plate and the second cover plate are respectively located on both sides of the fixing strip, and one side of the first cover plate and the second cover plate are respectively rotatably connected to both sides of the fixing strip; the first cover plate and the second cover plate are both provided with a plurality of the eating grooves matching the eating strips or, the first cover plate and the second cover plate are both provided with a plurality of the eating strips matching the eating grooves.

[0015] In the above technical solution, two groups of universal zipper sewing molds are arranged on both sides of the fixing strip, so that two groups of zippers and cut pieces to be sewn can be fixed at the same time, thereby improving processing efficiency.

[0016] The present invention also discloses a method for using the universal zipper sewing mold, which specifically comprises the following steps:

[0017] S1: placing a cut piece on the bottom plate, and then pressing down the middle plate to allow the cut piece to pass through the zipper groove and expose the position where it is sewn with the zipper;

[0018] S2: Laying the zipper along the zipper groove on the cut piece fixed in step S1;

[0019] S3: Take the cut piece that needs shrinkage seam, and then lay it on the middle plate so that the cut piece covers the fabric tape of the zipper;

[0020] S4: Pressing the cover plate downward, so that the eating bar pushes the cut pieces in step S3 to be embedded into the eating groove;

[0021] S5: placing the zipper sewing universal mold, the zipper fixed on the zipper sewing universal mold, and the cut piece under a sewing device, and sewing along the cloth strip of the zipper.

[0022] The cut pieces in step S1 are usually cut pieces that do not require shrinkage seams, and the cut pieces in step S3 are usually cut pieces that require shrinkage seams.

[0023] In the above technical scheme, the cut pieces that do not require shrinkage seams are laid between the bottom plate and the middle plate, and the cut pieces that do not require shrinkage seams are flattened by the middle plate, thereby ensuring that the cut pieces are flat during the process of sewing with the pull tab; at the same time, the sewing position of the zipper is determined by the zipper groove to avoid zipper deviation; the above method lays the cut pieces that require shrinkage seams between the middle plate and the cover plate, and shrinks the cut pieces by clamping the tension strips on the middle plate and the tension grooves on the cover plate to form uniform shrinkage seams, and at the same time determines the tension amount, and then sews, so that the processed products that do not require shrinkage seams are flat, and the shrinkage seams that require shrinkage seams are uniform and neat, thereby improving the processing efficiency and processing quality of the products.

[0024] Furthermore, the tension strips are adjustable; before step S1, step S0 is also included: adjusting the number or height of the tension strips according to the amount of shrinkage required for the cut piece to be processed, so that the tension of the sewing zipper and the cut piece meets the processing requirements.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present application discloses a universal zipper sewing mold, which is provided with a bottom plate and a middle plate and a cover plate rotatably connected to the bottom plate, and the middle plate and the cover plate are respectively provided with a force strip and a force groove. Through the mutual clamping of the force groove and the force strip, the cut pieces to be processed and arranged between the middle plate and the cover plate are shortened into a wavy shape, and then sewn to achieve shrinkage; the two cut pieces on both sides of the zipper have different shrinkage, which is suitable for the front placket of a multi-layer structure and the processing of tops requiring shrinkage of a certain layer. The front placket processed by adopting this structure ensures that the layer of cut pieces that do not need shrinkage is flat, and at the same time makes the shrinkage of the layer of cut pieces that need shrinkage uniform, thereby improving the processing efficiency and ensuring the product quality; in addition, the force strip provided in the present application is detachably connected or slidably connected to the middle plate or the cover plate, so that the force strip of the force strip can be adjusted, making it suitable for the processing of cut pieces with different force strips. The present application also discloses a zipper sewing method, which adopts the zipper sewing universal mold disclosed in the present application to sew zippers and cut pieces, lays the cut pieces that do not need shrinkage seams between the bottom plate and the middle plate, and flattens the cut pieces that do not need shrinkage seams through the middle plate, thereby ensuring the flatness of the cut pieces during the sewing process with the pull tab; at the same time, the sewing position of the zipper is determined by the zipper groove to avoid zipper deviation; the above method lays the cut pieces that need shrinkage seams between the middle plate and the cover plate, and shrinks the cut pieces through the clamping of the draft strip on the middle plate and the draft groove on the cover plate to form a uniform shrinkage seam, and at the same time determines the draft amount, and then sews, so that the processed products that do not need shrinkage seams are flat, and the shrinkage seams that need shrinkage seams are uniform and neat, thereby improving the processing efficiency and processing quality of the products; in addition, a draft amount adjustment step is provided before laying the cut pieces, and by adjusting the draft amount of the draft strip, the draft amount of the processed tops can be made more accurate, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of a universal mold for zipper sewing disclosed in some embodiments of the present invention;

[0028] Figure 2 for Figure 1 A partial enlarged view of

[0029] Figure 3 It is a front view of a universal mold for zipper sewing disclosed in some embodiments of the present invention;

[0030] Figure 4 for Figure 3 A cross-sectional view of

[0031] Figure 5 for Figure 4 A partial enlarged view of

[0032] Figure 6 A bottom view of a cover plate of a universal zipper sewing mold disclosed in some embodiments of the present invention;

[0033] Markings in the figure: 1-bottom plate, 11-fixing strip, 2-middle plate, 21-feeding strip, 211-T-shaped limiting step, 22-zipper slot, 23-zipper head notch, 24-double-sided cloth-based adhesive, 25-adjustment slot, 251-limiting block, 26-first middle plate; 27-second middle plate, 3-cover plate, 31-sewing seam, 32-feeding slot, 33-first cover plate, 34-second cover plate. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0035] In the existing front placket zipper sewing process, some layers of cut pieces require shrinkage, but the existing zipper sewing universal mold can usually only ensure that the cut pieces remain flat during the zipper sewing process, thereby improving processing efficiency; however, for the cut pieces that require shrinkage, they can only be shrunk manually, which affects processing efficiency and is also difficult to maintain uniform shrinkage of the cut pieces. In particular, in the process of sewing the front placket zipper, one layer requires shrinkage and the other does not. Since the two layers of cut pieces have different processing requirements, it is difficult to ensure that the two layers of cut pieces meet good quality requirements during processing, and the processing efficiency is also very low.

[0036] In response to the above technical problems, the inventors of the present application proposed a universal zipper sewing mold, in which mutually matching grooves 32 and strips 21 are respectively arranged on the middle plate 2 and the cover plate 3 of the mold, and no grooves 32 and strips 21 are arranged between the middle plate 2 and the bottom plate 1, so that one layer of cut pieces is stretched flat and kept flat during the zipper sewing process; the other layer of cut pieces forms a uniform shrinkage seam due to the clamping of the strips 21 and the grooves 32, without the need for manual shrinkage, thereby improving the shrinkage processing efficiency and keeping the shrinkage seam during the zipper sewing process, thereby obtaining a product with a uniform shrinkage seam.

[0037] The present application discloses a universal zipper sewing mold comprising a bottom plate 1, a middle plate 2 and a cover plate 3 which are arranged in sequence from bottom to top, wherein the bottom plate 1 is rotatably connected to the same side of the middle plate 2 and the cover plate 3 respectively; a zipper groove 22 is arranged on the side of the middle plate 2 close to the rotational connection; a plurality of engagement strips 21 are evenly arranged on the upper surface of the middle plate 2; a plurality of engagement grooves 32 matching the engagement strips 21 are correspondingly arranged on the lower surface of the cover plate 3.

[0038] It should be noted that the base plate 1, the middle plate 2 and the cover plate 3 are all thin plate structures, and the rotational connection between the middle plate 2 and the cover plate 3 and the base plate 1 is located on one side of the base plate 1; a sewing seam 31 is provided on the cover plate 3 corresponding to the zipper groove 22; it is used for needle insertion and thread routing when sewing zippers and cut pieces.

[0039] Optionally, the rotational connection of the middle plate 2, the cover plate 3 and the bottom plate 1 can be rotationally connected through a flexible connector or a rotating shaft. The rotational connector can be made of a flexible rubber material or an elastic metal material or other flexible materials. It should be noted that when the middle plate 2, the cover plate 3 and the bottom plate 1 are rotationally connected through a rotating shaft, a connecting platform is provided at one end of the bottom plate 1; at least two rotating cylinders are provided on the connecting platform corresponding to the middle plate 2, and at least two rotating cylinders are provided corresponding to the cover plate 3; a rotating rod that can pass through the rotating cylinder and rotate freely in the rotating cylinder is provided at one end of the middle plate 2, and a rotating rod that can pass through the rotating cylinder and rotate freely in the rotating cylinder is also provided at one end of the cover plate 3, thereby realizing the rotational connection between the middle plate 2 and the bottom plate 1, and the cover plate 3 and the bottom plate 1.

[0040] It should be noted that the zipper slot 22 is a rectangular slot for laying a zipper, which can be a rectangular through hole set inside the middle plate 2, or a rectangular notch set on the side of the middle plate 2 close to the end that is rotatably connected to the bottom plate 1; preferably, it is a rectangular notch set on the side of the middle plate 2 close to the end that is rotatably connected to the bottom plate 1, which is convenient for aligning the cut pieces. It should be noted that the eat-away strip 21 is a rectangular strip or an arc strip or a long strip with a cross-section of other polygonal structures, one end of which is connected to the zipper slot 22 and is perpendicular to the extension direction of the zipper slot 22; preferably, it is an arc strip, so that when the cut pieces are laid on the middle plate 2, they fit better with the eat-away strip 21, and the eat-away amount is more accurate.

[0041] During use, a piece that does not require shrinkage is first laid on the base plate 1, so that the side of the piece that does not require shrinkage that needs to be sewn with the zipper is aligned with the zipper groove 22, and the part for sewing the zipper is exposed; the middle plate 2 is pressed down to make the piece that does not require shrinkage flat, and then the zipper is laid in the zipper groove 22, so that the chain teeth of the zipper are aligned with the edge of the piece that does not require shrinkage; then the piece that needs shrinkage is laid on the middle plate 2, and then the piece that needs shrinkage is pressed so that the piece that needs shrinkage is more closely fitted with the groove 32, and then the cover plate 3 is pressed down so that the groove 32 and the strip 21 are meshed with each other, so that the piece that needs shrinkage forms a wave-shaped shrinkage under the action of the mutual clamping of the groove 32 and the strip 21, so as to achieve uniform shrinkage; then the zipper sewing universal mold and the pieces and zippers fixed in the zipper sewing universal mold are placed under the sewing equipment for sewing.

[0042] In some embodiments, a universal zipper sewing mold has a retaining groove 32 disposed on the lower surface of the cover plate 3, and a retaining strip 21 disposed on the side of the middle plate 2 close to the rotational connection; the remaining structure is basically the same as that of Example 1, and therefore will not be described in detail one by one.

[0043] During use, a piece that does not require shrinkage is first laid on the base plate 1, so that the side of the piece that does not require shrinkage that needs to be sewn with the zipper is aligned with the zipper groove 22, and the part for sewing the zipper is exposed; the middle plate 2 is pressed down to make the piece that does not require shrinkage flat, and then the zipper is laid in the zipper groove 22, so that the chain teeth of the zipper are aligned with the edge of the piece that does not require shrinkage; then the piece that needs shrinkage is laid on the middle plate 2, and then the piece that needs shrinkage is pressed so that the piece that needs shrinkage is more closely fitted with the eating strip 21, and then the cover plate 3 is pressed down so that the eating strip 21 and the eating groove 32 are meshed with each other, so that the piece that needs shrinkage forms a wavy shrinkage under the action of the mutual clamping of the eating strip 21 and the eating groove 32, so as to achieve uniform shrinkage eating; then the zipper sewing universal mold and the pieces and zippers fixed in the zipper sewing universal mold are placed under the sewing equipment for sewing.

[0044] In some embodiments, the eating strip 21 in the universal zipper sewing mold is detachably connected to the middle plate 2 or the cover plate 3, and the number of the eating strips 21 can be adjusted by the detachable connection between the eating strip 21 and the middle plate 2 or the cover plate 3, thereby achieving the adjustment of the eating amount.

[0045] Optionally, the detachable connection between the eater strip 21 and the middle plate 2 or the cover plate 3 can be achieved by snapping, bonding, magnetic connection or fasteners; preferably, bonding or magnetic connection is used to facilitate the quick and repeated disassembly and assembly of the eater strip 21 without adding other structures or parts. It should be noted that when the eater strip 21 is bonded to the middle plate 2 or the cover plate 3, the adhesive material or adhesive used is a cloth-based adhesive that does not solidify at room temperature and can be used for bonding the cut pieces, so that after the eater strip 21 is removed, the exposed adhesive material or adhesive can be used for bonding and fixing the cut pieces. The cloth-based adhesive can be a commercially available double-sided cloth-based tape.

[0046] It should be noted that when the eater strip 21 and the middle plate 2 or the cover plate 3 are magnetically connected, the eater strip 21 can be made of magnetic material or ferromagnetic material; or a magnetic strip is provided on one side of the eater strip 21; a magnetic strip is provided on the middle plate 2 or the cover plate 3 to achieve the magnetic connection between the eater strip 21 and the middle plate 2 or the cover plate 3.

[0047] In some embodiments, when the eating strip 21 is detachably connected to the middle plate 2 or the cover plate 3 by snapping, an embedding groove for embedding the eating strip 21 is provided on the middle plate 2 or the cover plate 3; a protrusion that can be embedded in the embedding groove is provided on one end face of the eating strip 21, thereby realizing the snap connection between the eating strip 21 and the middle plate 2 or the cover plate 3.

[0048] In some embodiments, the eating strip 21 is slidably connected to the middle plate 2 or the cover plate 3, and the eating strip 21 adjusts the eating amount by sliding. However, during the adjustment process, the eating strip 21 does not completely separate from the middle plate 2 or the cover plate 3, thereby preventing the eating strip 21 from being scattered around after being removed, making it difficult to manage and store.

[0049] Specifically, the following structure can be adopted: a plurality of adjustment grooves 25 are provided on the upper surface of the middle plate 2 or the lower surface of the cover plate 3; the depth of the adjustment groove 25 gradually increases from the end close to the zipper groove 22 to the end away from the zipper groove 22; the eater bar 21 is embedded in the adjustment groove 25 and can slide along the adjustment groove 25.

[0050] It should be noted that the difficulty of the engagement strip 21 to completely withdraw from the adjusting groove 25 can be achieved through the following structures: first, the end of the adjusting groove 25 away from the zipper groove 22 is sealed, that is, it is not a through groove, and the engagement strip 21 is difficult to withdraw from the adjusting groove 25 during the sliding process due to the sealed end; secondly, the adjusting groove 25 is a through groove, but a limiting block is provided at the end away from the zipper groove 22, and a limiting step is provided at the end of the engagement strip 21 close to the zipper groove 22 corresponding to the limiting block, so that when the engagement strip 21 is slid to the farthest end of the adjusting groove 25 away from the zipper groove 22, it is difficult for the engagement strip 21 to withdraw from the adjusting groove 25 due to the restrictions of the limiting block and the limiting step. In the above structure, both sides of the feeding strip 21 are provided with limiting strips extending along the long direction of the feeding strip 21, and correspondingly, limiting strips matching the limiting strips are provided on the two side walls of the adjustment slot 25, and the limiting strips are embedded in the limiting slots and can slide along the limiting slots; it should be noted that the distance between the limiting slot and the bottom surface of the adjustment slot 25 remains unchanged. Preferably, the end of the adjustment slot 25 away from the zipper slot 22 is provided with an end cap, and a limiting block 251 is provided at this end of the adjustment slot 25, and a limiting block 251 is also provided at the other end; the lower surface of the feeding strip 21 is provided with a T-shaped limiting step 211; the feeding strip 21 can be freely taken out by sliding to the middle position; and can be limited in the adjustment slot 25 when sliding to both ends.

[0051] At the same time, since the adjustment groove 25 is an inclined groove with a gradually changing depth, the height of the adjustment groove 25 deep in the draft bar 21 can be adjusted by sliding the draft bar 21, thereby achieving a more accurate adjustment of the draft; especially for cutting pieces with unevenly distributed draft within the zipper sewing range, the draft bar 21 with sliding adjustment of the draft can be used to adjust the draft of each part of the cutting piece, so that the quality of the processed product is better.

[0052] In some embodiments, the upper surface of the middle plate 2 is provided with a double-sided cloth-based adhesive 24, which is used to fix the cut pieces that need shrinkage seams so that the amount of shrinkage is fixed. Preferably, when the middle plate 2 is provided with shrinkage strips 21, the double-sided cloth-based adhesive 24 is provided between two adjacent shrinkage strips 21; when the middle plate 2 is provided with shrinkage grooves 32, the double-sided cloth-based adhesive 24 is provided in the shrinkage grooves 32, which reduces the use of the double-sided cloth-based adhesive 24 and also facilitates the position adjustment of the cut pieces. The double-sided cloth-based adhesive 24 can be a commercially available double-sided cloth-based adhesive tape.

[0053] In some embodiments, at least one zipper head notch 23 is provided on the side wall of the zipper groove 22, which is used to facilitate the positioning of the zipper laying position and prevent the zipper head from affecting the alignment of the zipper laying position when laying the zipper. Preferably, the zipper head notch 23 is provided in plurality, so that it corresponds to the laying of zippers of different lengths, so that the universal zipper sewing mold is suitable for processing zippers of different lengths.

[0054] During use, after the cut pieces that do not require shrinkage are laid and flattened by the middle plate 2, the zipper head of the zipper to be sewn is inserted into the zipper head notch 23, and then the zipper is flattened and laid, so that the positioning and limiting of the zipper can be achieved.

[0055] It should be noted that the cover plate 3 and the bottom plate 1 are both provided with corresponding sewing seams 31; the sewing seams 31 are provided corresponding to the zipper slot 22 and extend along the long direction of the zipper slot 22. The width of the sewing seam 31 is smaller than the width of the zipper slot 22, and is used to limit the position of the zipper sewing, so that the zipper sewing position is uniform, and at the same time, the zipper sewing line is straight; the length of the sewing seam 31 can be set according to the applicable zipper sewing length.

[0056] In some embodiments, a fixing strip 11 is disposed in the middle of the bottom plate 1; the middle plate 2 includes a first middle plate 26 and a second middle plate 27; the first middle plate 26 and the second middle plate 27 are respectively located on both sides of the fixing strip 11, and one side of the first middle plate 26 and the second middle plate 27 are respectively rotatably connected to both sides of the fixing strip 11; the first middle plate 26 and the second middle plate 27 are respectively provided with a first zipper groove 22 and a second zipper groove 22 at one end close to the fixing strip 11; the first middle plate 26 and the second middle plate 27 are provided with a plurality of the The said cover plate 3 comprises a first cover plate 33 and a second cover plate 34, the said first cover plate 33 and the said second cover plate 34 are respectively located on both sides of the said fixed strip 11, and one side of the said first cover plate 33 and the said second cover plate 34 are respectively rotatably connected with both sides of the said fixed strip 11; the said first cover plate 33 and the said second cover plate 34 are both provided with a plurality of said rotatable grooves 32 matching with the said rotatable grooves 32, and the said first cover plate 33 and the said second cover plate 34 are both provided with a plurality of said rotatable strips 21 matching with the said rotatable grooves 32. That is, the fixing strip 11 rotatably connected with the middle plate 2 and the cover plate 3 is provided in the middle of the bottom plate 1, so that the first middle plate 26 at both ends of the fixing strip 11, the first cover plate 33 and the second middle plate 27, the second cover plate 34 and the bottom plate 1 form two sets of zipper sewing universal molds, so as to realize the simultaneous application of the two sets of zipper sewing universal molds and improve the processing efficiency.

[0057] Preferably, any or all of the base plate 1, middle plate 2 and cover plate 3 can be made of transparent materials or partially transparent materials; preferably, the middle plate 2 and cover plate 3 are preferably made of transparent materials or partially transparent materials, which is convenient for observing the cutting pieces and zippers during laying and processing, and for checking and adjusting the positions of the cutting pieces and zippers.

[0058] Preferably, a plurality of scales or standard lines are provided on the bottom plate 1, the middle plate 2 and the cover plate 3. The scales can be provided along the edges of the bottom plate 1, the middle plate 2 and the cover plate 3 to display the sizes of the cutting pieces and the zipper and also to facilitate positioning; the standard lines can be provided along the zipper groove 22 or the line for laying the cutting pieces to facilitate alignment of the cutting pieces and the zipper.

[0059] The present invention also discloses a zipper sewing method, which uses the above-mentioned zipper sewing universal mold to sew the zipper and the cut piece, and specifically comprises the following steps:

[0060] S1: Take two pieces to be sewn, one of which is a piece that does not need shrinkage seams, and the other is a piece that needs shrinkage seams; place the piece that does not need shrinkage seams on the bottom plate 1, align the end of the piece that needs to be sewn with the zipper with the zipper groove 22, and then press down the middle plate 2 to make the piece pass through the zipper groove 22 to expose the position to be sewn with the zipper;

[0061] S2: Laying the zipper along the zipper groove 22 on the cut piece fixed in step S1;

[0062] S3: Take the cut piece that needs shrinkage seam, and then lay it on the middle plate 2, so that the cut piece covers the fabric tape of the zipper;

[0063] S4: Press the cover plate 3 downward, so that the eating strip 21 pushes the cut pieces in step S3 to be embedded into the eating groove 32;

[0064] S5: placing the zipper sewing universal mold, the zipper fixed on the zipper sewing universal mold, and the cut piece under a sewing device, and sewing along the cloth strip of the zipper.

[0065] In some embodiments, when the tension strip 21 is adjustable, before step S1, step S0 is further included: adjusting the tension amount of the tension strip 21 according to the amount of shrinkage required for the cut piece to be processed.

[0066] In some embodiments, when a fixing strip 11 is disposed in the middle of the bottom plate 1, the first middle plate 26, the first cover plate 33, the second middle plate 27, the second cover plate 34 and the bottom plate 1 at both ends of the fixing strip 11 form two sets of universal zipper sewing molds, the use method can be:

[0067] S1: Take two pieces to be sewn, one of which is a piece that does not need shrinkage seams, and the other is a piece that needs shrinkage seams; place the piece that does not need shrinkage seams on one side of the fixing strip 11 of the bottom plate 1, align the end of the piece that needs to be sewn with the zipper with the zipper groove 22, and then press down the middle plate 2 to make the piece pass through the zipper groove 22 to expose the position to be sewn with the zipper;

[0068] S2: Laying the zipper along the zipper groove 22 on the cut piece fixed in step S1;

[0069] S3: Take the cut piece that needs shrinkage seam, and then lay it on the middle plate 2 so that the cut piece covers the fabric tape of the zipper;

[0070] S4: Press the cover plate 3 downward, so that the eating strip 21 pushes the cut pieces in step S3 to be embedded into the eating groove 32;

[0071] S5: Take the pieces to be sewn again, one of which is a piece that does not need shrinkage seams, and the other is a piece that needs shrinkage seams; then repeat steps S1 to S4, so that the two sets of pieces and zippers are fixed on both sides of the fixing strip 11 respectively;

[0072] S6: placing the zipper sewing universal mold, the zipper fixed on the zipper sewing universal mold, and the cut piece under the sewing equipment, and sewing along the cloth strip of the zipper.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A universal zipper sewing mold, comprising a bottom plate, a middle plate and a cover plate arranged in sequence from bottom to top, wherein the bottom plate is rotatably connected to the same side of the middle plate and the cover plate respectively; characterized in that: A zipper groove is provided on one side of the middle plate close to the rotation connection; a plurality of eat-away strips are evenly provided on the upper surface of the middle plate or the lower surface of the cover plate; a plurality of eat-away grooves matching the eat-away strips are correspondingly provided on the lower surface of the cover plate or the upper surface of the middle plate; The eater strip is slidably connected to the middle plate or the cover plate; A plurality of adjustment grooves are arranged on the upper surface of the middle plate or the lower surface of the cover plate; the depth of the adjustment grooves gradually increases from one end close to the zipper groove to one end away from the zipper groove; the engagement strip is embedded in the adjustment groove and can slide along the adjustment groove; The cover plate and the bottom plate are both provided with sewing seams corresponding to each other; the sewing seams are provided corresponding to the zipper slot and extend along the long direction of the zipper slot; the width of the sewing seams is smaller than the width of the zipper slot; The bottom plate, the middle plate and the cover plate are provided with a plurality of scales or standard lines, and the scales can be provided along the edges of the bottom plate, the middle plate and the cover plate; The cutting pieces include cutting pieces that need shrinkage seams and cutting pieces that do not need shrinkage seams. The zipper sewing method includes the following steps: S0: The eat-up bar is adjustable. The height of the eat-up bar is adjusted according to the shrinkage amount required for the cut pieces to be processed. The eat-up bar is slidably connected to the middle plate or the cover plate. The eat-up bar is pushed to adjust the height of the eat-up bar, thereby adjusting the shrinkage amount of the cut pieces laid on the middle plate. S1: placing a cut piece that does not require shrinkage seams on the bottom plate, and then pressing down the middle plate so that the cut piece that does not require shrinkage seams passes through the zipper groove and is exposed to the position where it is sewn with the zipper; S2: Laying the zipper along the zipper groove on the cut piece that does not require shrinkage seams and is fixed in step S1; S3: Take a piece that needs shrinkage seams, and then lay it on the middle plate so that the piece that needs shrinkage seams covers the fabric tape of the zipper; S4: Pressing down the cover plate so that the eating bar pushes the cut piece in step S3 to be embedded into the eating groove; S5: placing the zipper sewing universal mold, the zipper fixed on the zipper sewing universal mold, and the cut piece under a sewing device, and sewing along the cloth strip of the zipper.

2. A universal zipper sewing mold according to claim 1, characterized in that: The upper surface of the middle plate is provided with double-sided cloth-based adhesive.

3. A universal zipper sewing mold according to any one of claims 1-2, characterized in that: At least one zipper head notch is arranged on the side wall of the zipper groove.

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