A template for making an opening of a waistband of a casual pants and a pattern machine

Abstract

The utility model discloses a kind of leisure trousers waist rope opening manufacturing templates and pattern machines, leisure trousers waist rope opening manufacturing template includes: bottom plate, bottom plate is equipped with two first sewing channels;Two pieces of folding pressboard, folding pressboard is equipped with two channels;Two pieces of folding pressboard can be covered on bottom plate, and two pieces of folding pressboard partially overlap, the channel of two pieces of folding pressboard is one-to-one spliced into two second sewing channels, and coincides with first sewing channel one-to-one;Waistband cover plate, two waistband cover plates are equipped with third sewing channel, two waistband cover plates can be covered respectively on the two sides of folding pressboard, and the third sewing channel of two waistband cover plates coincides with two second sewing channels one-to-one. Pattern machine includes: above leisure trousers waist rope opening manufacturing template, bottom plate is equipped with air hole;Operation platform, template is located on operation platform;Suction mechanism, suction mechanism is fixed on the cutting piece of template by air hole suction. Therefore, the utility model has the advantages of improving efficiency, unified quality.

Description

Technical Field

[0001] This application relates to the field of manufacturing technology for waistband drawstring openings in trousers, specifically to a template and pattern making machine for making waistband drawstring openings in casual trousers. Background Technology

[0002] During garment manufacturing, casual trousers typically have two waistband holes, which usually have metal buckles for added durability. A belt is threaded through these holes, allowing the tightness of the waistband to be adjusted. The belt fabric is sewn together using a sewing machine.

[0003] In the existing technology, two waistband holes need to be punched manually on the waistband. The position and quality of the two waistband holes will vary depending on the operator's experience. Because the waistband fabric is too thin, it is easy to tear during punching, which affects the use of the waistband holes and belt. A pad needs to be sewn first to ensure the punching quality. The efficiency of this process varies depending on the worker's skill level, resulting in low production efficiency.

[0004] To avoid damaging the cut pieces, two overlapping pieces are used, with the opening at the overlapping position serving as the waistband opening. This type of waistband opening does not involve a die-cutting process and will not damage the cut pieces. However, it requires multiple pieces to be stacked and sewn together, resulting in low production efficiency due to manual operation. Furthermore, the cut pieces are difficult to position, which can easily lead to defective products. It is more difficult to produce waistband openings than die-cut ones. Utility Model Content

[0005] Therefore, there is a need to provide a template and pattern making machine for casual trouser waistband drawstring openings to solve the problems of low efficiency and inconsistent quality in the existing technology for making trouser waistband drawstring openings.

[0006] To achieve the above objectives, the inventor provides a template for making the drawstring opening of casual trousers, comprising:

[0007] The base plate is provided with two longitudinal first seam channels;

[0008] The folding plate has two channels that run through it in the same direction; there are two folding plates, both of which can be placed on the base plate and partially overlap each other. The channels of the two folding plates are joined together one-to-one to form two second sewing channels, which coincide one-to-one with the first sewing channel.

[0009] The waist cover plate is provided with a third sewing channel. There are two waist cover plates. The two waist cover plates can cover the two sides of the folding plate respectively, and the third sewing channel of the two waist cover plates overlaps with the two second sewing channels one-to-one.

[0010] In some embodiments, the folding plate is provided with a waist-end positioning protrusion for positioning the waist-end cut pieces.

[0011] In some embodiments, the base plate is provided with an upper assembly positioning line and a lower assembly positioning line to position the upper and lower assembly pieces respectively; when two folding plates are placed on the base plate, the upper assembly positioning line and the lower assembly positioning line are covered by the two folding plates respectively.

[0012] In some embodiments, the folding plate and the waist cover plate are both hinged to the base plate.

[0013] In some embodiments, the hinge axis of the folding plate is arranged laterally, and the hinge axis of the waist cover plate is arranged longitudinally; or both the hinge axis of the folding plate and the hinge axis of the waist cover plate are arranged longitudinally.

[0014] In some embodiments, the base plate, the folding plate, and the waist cover plate are all provided with magnetic elements so that the base plate, the folding plate, and the waist cover plate are attracted to each other.

[0015] In some embodiments, the base plate is provided with a longitudinal slide groove and a transverse slide groove, and the folding plate is slidably connected to the longitudinal slide groove; the waist cover plate is slidably connected to the transverse slide groove.

[0016] In some embodiments, the folding plate and the waist cover plate are separately provided from the base plate. When the folding plate and the waist cover plate are placed on the base plate, the movement of the folding plate and the waist cover plate is restricted by the positioning structure.

[0017] In some embodiments, the positioning structure includes a positioning protrusion on the base plate and a positioning hole on the folding plate and the waist cover plate. When the folding plate and the waist cover plate are placed on the base plate, the positioning protrusion passes through the positioning hole.

[0018] Unlike existing technologies, the template for making the waistband drawstring opening of casual pants described in the above technical solution uses a base plate to support the folding plate, waistband cover plate, upper piece, lower piece, and waistband piece. This allows the upper piece, lower piece, and waistband piece to be moved as a whole under the head of the pattern sewing machine after being stacked as needed. The two folding plates can be placed one on top of the base plate, with partial overlap. Specifically, after the lower piece is placed on the base plate as needed, one folding plate is placed on top of a portion of the lower piece, and the other portion of the lower piece overlaps the edge of the folding plate. Then, the upper piece is also placed on the base plate as needed, and the other folding plate is placed on top in the same manner. Stack the upper and lower pieces together with partial overlap. Then, align the two ends of the waistband piece with the sides of the upper (or lower) piece, and press the two waistband covers against the ends of the waistband piece. At this point, the first, second, and third sewing channels are aligned, allowing the base plate to be moved under the head of the pattern-making machine to complete the sewing operation in one go. With the assistance of the casual trouser waistband opening template, the pieces can be positioned in the required state, greatly reducing the production of defective products, lowering the difficulty of making the waistband opening, improving the efficiency of making the waistband opening, and effectively ensuring quality uniformity.

[0019] The inventor also provides a pattern-making machine, comprising:

[0020] The template is any one of the above-mentioned templates for making the waistband drawstring opening of casual pants, and the base plate is provided with ventilation holes;

[0021] An operating table, on which the template is placed, and the operating table moves the template.

[0022] A suction mechanism is connected to the operating table to draw air through the ventilation holes to fix the cut pieces on the template.

[0023] Unlike existing technologies, the pattern making machine described in the above technical solution is equipped with a template, which is the template for making the waistband drawstring opening of casual pants. This allows the cut pieces to be positioned in the required state. At the same time, with the ventilation holes set on the base plate and the suction mechanism connected to the operating table, the cut pieces can be fixed more evenly, greatly avoiding the generation of defective products, reducing the difficulty of making the waistband opening, improving the production efficiency of the waistband opening, and effectively ensuring the uniformity of quality.

[0024] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0025] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0026] In the accompanying drawings of the instruction manual:

[0027] Figure 1 A structural diagram of the template for making the waistband drawstring opening of casual pants as described in the specific implementation method;

[0028] Figure 2 An exploded view of the template for making the waistband drawstring opening of the casual pants described in the specific embodiment;

[0029] Figure 3 A side view of the template for making the waistband drawstring opening of the casual pants as described in the specific embodiment;

[0030] Figure 4 This is a structural diagram of the template for making the waistband drawstring opening of casual pants as described in Embodiment 1 of the specific implementation method;

[0031] Figure 5 This is a structural diagram of the template for making the waistband drawstring opening of casual pants as described in Embodiment 2.

[0032] Figure 6 This is a structural diagram of the template for making the waistband drawstring opening of casual pants as described in Embodiment 3.

[0033] The reference numerals used in the above figures are explained as follows:

[0034] 1. Base plate;

[0035] 100. First seam passage;

[0036] 101. Assemble the positioning lines;

[0037] 102. Lower the positioning line;

[0038] 103. Longitudinal groove;

[0039] 104. Transverse groove;

[0040] 105. Positioning protrusion;

[0041] 106. Ventilation holes;

[0042] 2. Folding and pressing plate;

[0043] 200. Channel;

[0044] 201. Second seam passage;

[0045] 202. Waist-end positioning protrusion;

[0046] 203. Positioning hole;

[0047] 3. Waist head cover;

[0048] 300. Third seam passage;

[0049] 4. Magnetic components;

[0050] 5. Assemble the cut pieces;

[0051] 6. Cut the bottom pieces;

[0052] 7. Waistband cut piece;

[0053] 8. Slider. Detailed Implementation

[0054] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0055] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0056] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0057] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0058] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0059] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0060] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0061] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0062] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0063] During garment manufacturing, casual trousers typically have two waistband holes, which usually have metal buckles for added durability. A belt is threaded through these holes, allowing the tightness of the waistband to be adjusted. The belt fabric is sewn together using a sewing machine.

[0064] In the existing technology, two waistband holes need to be punched manually on the waistband. The position and quality of the two waistband holes will vary depending on the operator's experience. Because the waistband fabric is too thin, it is easy to tear during punching, which affects the use of the waistband holes and belt. A pad needs to be sewn first to ensure the punching quality. The efficiency of this process varies depending on the worker's skill level, resulting in low production efficiency.

[0065] To avoid damaging the cut pieces, two overlapping pieces are used, with the opening at the overlapping position serving as the waistband opening. This type of waistband opening does not involve a die-cutting process and will not damage the cut pieces. However, it requires multiple pieces to be stacked and sewn together, resulting in low production efficiency due to manual operation. Furthermore, the cut pieces are difficult to position, which can easily lead to defective products. It is more difficult to produce waistband openings than die-cut ones.

[0066] Therefore, this utility model provides a template for making the waistband drawstring opening of casual pants, which is used to assist in manually stacking and sewing the cut pieces. It can easily and quickly position the cut pieces, thereby reducing the difficulty of production, improving production efficiency, ensuring product quality, and standardizing product quality.

[0067] Please see Figure 1 and Figure 2 In a specific embodiment, the template for making the waistband drawstring opening of the casual pants includes a base plate 1, a folding plate 2, and a waistband cover plate 3. The base plate 1 has two longitudinal first sewing channels 100. The folding plate 2 has two channels 200 that run through it in the same direction. There are two folding plates 2, both of which can be placed on the base plate 1 and partially overlap. The channels 200 of the two folding plates 2 are joined together to form two second sewing channels 201, which coincide with the first sewing channels 100. The waistband cover plate 3 has a third sewing channel 300. There are two waistband cover plates 3, which can be placed on both sides of the folding plate 2 respectively. The two folding plates 2 are located between the two waistband cover plates 3, and the third sewing channels 300 of the two waistband cover plates 3 coincide with the two second sewing channels 201.

[0068] The template for making the waistband drawstring opening of the casual pants supports the folding plate 2, waistband cover plate 3, upper piece 5, lower piece 6, and waistband piece 7 via the base plate 1. This allows the upper piece 5, lower piece 6, and waistband piece 7 to be moved as a whole under the head of the pattern sewing machine after being stacked as needed. The two folding plates 2 can be placed one on top of the base plate 1, with partial overlap. Specifically, after the lower piece 6 is placed on the base plate 1 as needed, one folding plate 2 is placed on the corresponding position on the base plate 1, covering a portion of the lower piece 6. Then, the other portion of the lower piece 6 is stacked along the edge of the folding plate 2. Subsequently, the upper piece 5 is also placed on the base plate 1 as needed, and the other folding plate 2 is placed on top in the same manner, and the upper piece 5 is folded. (See also...) Figure 3 The folded upper piece 5 and the folded lower piece 6 are stacked together in a partially overlapping manner. Then, the two ends of the waistband piece 7 are aligned with the sides of the upper piece 5 (or the lower piece 6), and the two waistband covers 3 press down on the two ends of the waistband piece 7. At this time, the first sewing channel 100, the second sewing channel 201, and the third sewing channel 300 are all aligned, so that the base plate 1 can be moved to the bottom of the pattern machine head to complete the sewing operation in one go. The upper piece, the lower piece, and the waistband piece form a ring structure. The inner surface of the ring is turned outward to become the outer surface, thus completing the production of the waistband drawstring opening of the casual pants. With the assistance of the template for making the waistband drawstring opening of the casual pants, the pieces can be positioned in the required state, which greatly avoids the production of defective products, reduces the difficulty of making the waistband opening, improves the production efficiency of the waistband opening, and effectively ensures the uniformity of quality, improves the efficiency of work and the accuracy of piece positioning, and reduces the production of defective products.

[0069] In some embodiments, the folding plate 2 and the waist cover plate 3 are both made of transparent acrylic sheet. The transparency makes it easy to observe whether the placement of the cut pieces is correct or off-center, and also makes it easy to observe whether the cut pieces are laid flat. Using acrylic sheet makes it lighter and easier to punch holes for processing.

[0070] In some embodiments, the distance between the two first sewing channels 100 is less than the width of the upper piece 5 (lower piece 6), and the distance between the two first sewing channels 100 is adapted to the width of the upper piece 5 (lower piece 6). When the upper piece 5 (lower piece 6) is placed on the base plate 1, both first sewing channels 100 are covered by the upper piece 5 (lower piece 6) and are located on both sides of the upper piece 5 (lower piece 6).

[0071] The spacing between the two second seam channels 201 and the spacing between the third seam channels 300 of the two waist cover plates 3 covering the bottom plate 1 are consistent with the spacing between the two first seam channels 100.

[0072] In some embodiments, the folding plate 2 is provided with a waist-end positioning protrusion 202 for positioning the waist-end cut piece 7, so as to facilitate the operator to confirm the placement position of the waist-end cut piece 7 in the longitudinal direction. When placing the waist-end cut piece 7, the end (width side or longitudinal side) of the waist-end cut piece 7 needs to be aligned with the side (longitudinal side) of the upper piece 5 or the lower piece 6, and the length side (lateral side) of the waist-end cut piece 7 needs to be aligned with the waist-end positioning protrusion 202, that is, the length side of the waist-end cut piece 7 abuts against the waist-end positioning protrusion 202, so that the relative placement position of the waist-end cut piece 7 and the upper piece 5 and the lower piece 6 meets the requirements.

[0073] In some embodiments, the base plate 1 is provided with an upper positioning line 101 and a lower positioning line 102 for positioning the upper piece 5 and the lower piece 6 respectively. When the two folding plates 2 are placed on the base plate 1, the upper positioning line 101 and the lower positioning line 102 are covered by the two folding plates 2 respectively. The upper positioning line 101 and the lower positioning line 102 can be used to help the operator confirm the placement position of the upper piece 5 and the lower piece 6, so that the relative placement position of the upper piece 5 and the lower piece 6 meets the requirements.

[0074] First, place the lower piece 6 on the base plate 1, aligning the horizontal edge of the lower piece 6 with the lower piece positioning line 102. Then, place the corresponding folding plate 2 (also known as the lower piece folding plate) on the lower piece 6, and then fold the lower piece 6 over. Next, align the horizontal edge of the upper piece 5 with the upper piece positioning line 101, and then place the corresponding folding plate 2 (also known as the upper piece folding plate) on the upper piece 5, and then fold the upper piece 5 over. The folded upper piece 5 partially overlaps the folded lower piece 6.

[0075] In some embodiments, the upper positioning line 101 and the lower positioning line 102 may be provided with adhesive tape, which replaces the upper positioning line 101 and the lower positioning line 102. The adhesive tape serves to mark the position and can also fix the upper piece 5 and the lower piece 6. After the upper piece 5 is aligned and placed, it can be pasted here to prevent displacement.

[0076] The folding plate 2 and the waist cover plate 3 can both be movably connected to the base plate 1, and there are various ways to make the movable connection, such as in the following embodiments:

[0077] Please see Figure 4 Example 1: The folding plate 2 and the waist cover plate 3 are both hinged to the base plate 1. In use, the folding plate 2 and the waist cover plate 3 can be directly flipped over. Figure 4 The right-hand waist cover 3 and the upper folding plate 2 are not flipped over to cover the cut piece, while the left-hand waist cover 3 and the lower folding plate 2 are flipped over to cover the cut piece.

[0078] In some embodiments, the hinge axis of the folding plate 2 is arranged horizontally, and the hinge axis of the waist cover plate 3 is arranged vertically; or both the hinge axis of the folding plate 2 and the hinge axis of the waist cover plate 3 are arranged vertically.

[0079] In some embodiments, the folding plate 2 and the waist cover plate 3 are mounted on the base plate 1 via a pivot, thereby achieving a hinged connection. This makes the manufacturing process simpler, the structure more concise, and allows for easy replacement of folding plates 2 and waist cover plates 3 of different sizes.

[0080] In other embodiments, the folding plate 2 and the waist cover plate 3 are attached to the base plate 1 with adhesive tape to achieve a hinged connection.

[0081] In order to ensure that the folding plate 2 and the waist cover plate 3 can press the cut piece tightly and prevent the cut piece from shifting, in some embodiments, the bottom plate 1, the folding plate 2, and the waist cover plate 3 are all provided with magnetic elements 4. When the folding plate 2 and the waist cover plate 3 are flipped over and placed on the cut piece, the bottom plate 1, the folding plate 2, and the waist cover plate 3 are attracted to each other by the magnetic elements 4 to ensure that the cut piece is pressed tightly.

[0082] Please see Figure 5 Example 2: The base plate 1 is provided with a longitudinal groove 103 and a transverse groove 104. The folding plate 2 is slidably connected to the longitudinal groove 103; the waist cover plate 3 is slidably connected to the transverse groove 104. Before placing the cut pieces, the folding plate 2 and the waist cover plate 3 are both located outside the area where the cut pieces are placed. After placing the lower piece 6, the corresponding folding plate 2 is moved along the longitudinal groove 103 onto the lower piece 6. After placing the upper piece 5, the corresponding folding plate is moved along the longitudinal groove 103 onto the upper piece 5. After placing the end of the waist cover plate 3, the corresponding waist cover plate 3 is moved along the transverse groove 104 onto the end of the waist piece 7.

[0083] In some embodiments, the bottom of the folding plate 2 is provided with a slider 8, and the folding plate 2 is connected to the longitudinal slide groove 103 through the slider 8. Similarly, the bottom of the waist cover plate 3 is also provided with a slider 8, and the waist cover plate 3 is also connected to the transverse slide groove 104 through the slider 8.

[0084] To ensure that the movement of the waist cover plate 3 and the movement of the folding plate 2 do not interfere with each other, the height of the slider 8 of the waist cover plate 3 is greater than the height of the slider 8 of the folding plate 2, so that the waist cover plate 3 can cover the folding plate 2.

[0085] Example 3: The folding plate 2 and the waist cover plate 3 are both set separately from the base plate 1. When the folding plate 2 and the waist cover plate 3 are placed on the base plate 1, the movement of the folding plate 2 and the waist cover plate 3 is restricted by the positioning structure.

[0086] Please see Figure 6In some embodiments, the positioning structure includes a positioning protrusion 105 provided on the base plate 1 and a positioning hole 203 provided on the folding plate 2 and the waist cover plate 3. When the folding plate 2 and the waist cover plate 3 cover the base plate 1, the positioning protrusion 105 passes through the positioning hole 203.

[0087] In other embodiments, the positioning structure includes magnetic components. When the folding plate 2 and the waist cover plate 3 are placed on the base plate 1, they are respectively attracted by the corresponding magnetic components to restrict movement.

[0088] In other embodiments, the positioning structure includes positioning clamps disposed on the base plate 1, and the positioning clamps are disposed in four sets, which are respectively used to restrict the movement of the two folding plates 2 and the two waist head cover plates 3.

[0089] In a specific embodiment, this utility model also provides a pattern-making machine, which includes a template, an operating table, and a suction mechanism. The template is any of the casual trouser waistband drawstring opening templates described above. Please refer to [link to relevant documentation]. Figure 2 The base plate 1 is provided with ventilation holes 106; the template is placed on the operating table, and the operating table drives the template to move; the suction mechanism is connected to the operating table to suction air through the ventilation holes 106 to fix the cut pieces on the template.

[0090] The pattern making machine is equipped with a template, which is the template for making the waistband drawstring opening of the casual pants mentioned above. This allows the cut pieces to be positioned in the required state. At the same time, in conjunction with the ventilation holes 106 set on the base plate 1 and the suction mechanism connected to the operating table, the cut pieces can be fixed more evenly, which greatly avoids the generation of defective products, reduces the difficulty of making the waistband opening, improves the production efficiency of the waistband opening, and effectively ensures the uniformity of quality.

[0091] In some embodiments, the operating table is provided with a groove, and the base plate 1 is embedded in the groove.

[0092] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A template for making drawstring openings on casual trousers, characterized in that, include: The base plate is provided with two longitudinal first seam channels; The folding plate has two channels that run through it in the same direction; there are two folding plates, both of which can be placed on the base plate and partially overlap each other. The channels of the two folding plates are joined together one-to-one to form two second sewing channels, which coincide one-to-one with the first sewing channel. The waist cover plate is provided with a third sewing channel. There are two waist cover plates. The two waist cover plates can cover the two sides of the folding plate respectively, and the third sewing channel of the two waist cover plates overlaps with the two second sewing channels one-to-one.

2. The template for making the drawstring opening of casual pants according to claim 1, characterized in that, The folding plate is provided with a waist-end positioning protrusion for positioning the waist-end cut pieces.

3. The template for making the drawstring opening of casual pants according to claim 1, characterized in that, The base plate is provided with an upper assembly positioning line and a lower assembly positioning line to position the upper and lower assembly pieces respectively; when the two folding plates are placed on the base plate, the upper assembly positioning line and the lower assembly positioning line are covered by the two folding plates respectively.

4. The template for making the drawstring opening of casual pants according to claim 1, characterized in that, The folding plate and the waist cover plate are both hinged to the base plate.

5. The template for making the drawstring opening of casual pants according to claim 4, characterized in that, The hinge axis of the folding plate is arranged horizontally, and the hinge axis of the waist cover plate is arranged vertically; or both the hinge axis of the folding plate and the hinge axis of the waist cover plate are arranged vertically.

6. The template for making the drawstring opening of casual pants according to claim 4, characterized in that, The base plate, folding plate, and waist cover plate are all equipped with magnetic components to make the base plate, folding plate, and waist cover plate attract each other tightly.

7. The template for making the drawstring opening of casual pants according to claim 1, characterized in that, The base plate is provided with a longitudinal sliding groove and a transverse sliding groove, and the folding plate is slidably connected to the longitudinal sliding groove; the waist head cover plate is slidably connected to the transverse sliding groove.

8. The template for making the drawstring opening of casual pants according to claim 1, characterized in that, The folding plate and the waist cover plate are both set separately from the base plate. When the folding plate and the waist cover plate are placed on the base plate, the movement of the folding plate and the waist cover plate is restricted by the positioning structure.

9. The template for making the drawstring opening of casual pants according to claim 8, characterized in that, The positioning structure includes a positioning protrusion on the base plate and a positioning hole on the folding plate and the waist cover plate. When the folding plate and the waist cover plate are placed on the base plate, the positioning protrusion passes through the positioning hole.

10. A pattern-making machine, characterized in that, include: The template is the template for making the waist drawstring opening of casual pants as described in any one of claims 1-9, and the bottom plate is provided with ventilation holes; An operating table, on which the template is placed, and the operating table moves the template. A suction mechanism is connected to the operating table to draw air through the ventilation holes to fix the cut pieces on the template.

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