Template and sewing method for assisting in sewing waistband of western trousers

Abstract

The application discloses a template for assisting in sewing of a waistband of western trousers and a sewing method. The template comprises a bottom plate, a surface waistband cutting piece placing plate, an inner waistband cutting piece pressing plate, a trouser loop placing plate and an inner waistband cutting piece placing plate. One end of the surface waistband cutting piece placing plate, the inner waistband cutting piece pressing plate and the trouser loop placing plate is pasted on the bottom plate to form a loose-leaf structure, and one end of the inner waistband cutting piece placing plate is pasted on the other end of the trouser loop placing plate to form a loose-leaf structure. By setting sewing grooves, trouser loop placing grooves, trouser loop sewing grooves and positioning lines on the bottom plate, the surface waistband cutting piece placing plate, the inner waistband cutting piece pressing plate, the trouser loop placing plate and the inner waistband cutting piece placing plate, and by cooperating with corresponding sewing methods, the semi-automatic sewing of the waistband of the western trousers can be realized by turning over the templates according to steps during sewing, the process is simplified, the process difficulty is reduced, the operation time is saved, and the product quality is improved.

Description

Technical Field

[0001] This invention relates to the field of garment production and processing, specifically to a template for assisting in the sewing of waistbands for trousers. Background Technology

[0002] The waistband sewing is a crucial step in men's trouser production. Traditionally, the waistband is hand-sewn, first stitched together according to the alignment marks, then ironed flat and fitted with interfacing for shaping. The waistband lining is stitched together simultaneously and finished with overlocking. Next, the folded and sewn waistband loops are positioned at equal intervals and fixed to the lower edge of the waistband. Then, the waistband and waistband lining are sewn together with their right sides facing each other, and the waistband is folded and ironed to make it crisp and straight. Next, the waistband is aligned with the waistband opening of the trouser body, and the front center, side, and back seams are aligned and sewn in place, with the seam allowance pressed towards the waistband. Finally, the two ends of the waistband are sealed, the inside is topstitched, and the waistband loops are attached.

[0003] The aforementioned traditional manual processes require highly skilled workers to operate and are prone to problems such as uneven stitching at the waistband, inconsistent waistband width, uneven or skewed fixing lines at the bottom of the trouser loops, unsatisfactory quality, poor stability, and low efficiency.

[0004] In view of this, the present invention proposes a template for assisting in the sewing of waistbands for trousers. This template enables semi-automatic sewing of waistbands for trousers, simplifies the process, reduces the difficulty of the process, saves operating time, and improves the quality of the finished product. Summary of the Invention

[0005] To achieve the above objectives, the technical solution adopted by this invention is: a template for assisting in the sewing of trouser waistbands, comprising a base plate, a front waistband piece placement board, an inner waistband piece pressing board, a trouser loop placement board, and an inner waistband piece placement board. One end of the front waistband piece placement board, the inner waistband piece pressing board, and the trouser loop placement board is attached to the base plate to form a hinged structure; one end of the inner waistband piece placement board is attached to the other end of the trouser loop placement board to form a hinged structure.

[0006] Furthermore, the base plate is provided with a first seam groove and a second seam groove from top to bottom; the first seam groove has a size of 93.5cm × 0.8cm, and the second seam groove has a size of 92cm × 0.6cm.

[0007] Furthermore, the waist panel placement board is pasted between the first and second seam grooves of the base plate.

[0008] Furthermore, the waist panel is provided with a first sewing groove and a second sewing groove from top to bottom; the first sewing groove has a size of 93.5cm × 0.8cm, and the second sewing groove has a size of 92cm × 0.6cm.

[0009] Furthermore, a horsehair lining is attached above the first seam groove of the waist panel placement board.

[0010] Furthermore, the end of the horsehair lining covers the first seam groove of the waist panel placement plate.

[0011] Furthermore, when the waist panel placement board is placed on the upper half of the base plate, the first sewing groove of the waist panel placement board coincides with the first sewing groove of the base plate in spatial position; when the waist panel placement board is placed on the lower half of the base plate, the second sewing groove of the waist panel placement board coincides with the second sewing groove of the base plate in spatial position.

[0012] Furthermore, the trouser loop placement plate is pasted between the first and second seam grooves of the base plate, below the waistband piece placement plate.

[0013] Furthermore, the trouser loop placement plate is provided with a sewing groove with dimensions of 92cm × 0.6cm.

[0014] Furthermore, the trouser loop placement plate is provided with multiple trouser loop placement slots, and the trouser loop placement slots are 11cm×2cm in size.

[0015] Furthermore, the trouser loop placement groove passes through the sewing groove.

[0016] Furthermore, the trouser loop placement plate has a trouser loop sewing groove in the trouser loop placement slot, and the trouser loop sewing groove has a size of 4cm × 0.6cm.

[0017] Furthermore, the base plate is provided with a trouser loop sewing groove, and the trouser loop sewing groove of the base plate is consistent with the trouser loop sewing groove of the trouser loop placement plate.

[0018] Furthermore, when the trouser loop placement plate covers the base plate, the sewing groove of the trouser loop placement plate and the trouser loop sewing groove coincide in spatial position with the second sewing groove and the trouser loop sewing groove of the base plate.

[0019] Furthermore, the trouser loop placement plate has a frosted plate attached below the trouser loop seam groove.

[0020] Furthermore, the lining panel is provided with a sewing groove, the size of which is 92cm × 0.6cm.

[0021] Furthermore, the waistband panel is provided with multiple trouser loop placement slots, each 11cm x 2cm in size.

[0022] Furthermore, the waistband panel has a trouser loop sewing groove in the trouser loop placement groove, and the trouser loop sewing groove has a size of 4cm × 0.6cm.

[0023] Furthermore, when the waistband piece placement board covers the trouser loop placement board, the sewing grooves of the waistband piece placement board and the trouser loop sewing grooves coincide spatially with the second sewing groove of the bottom plate and the trouser loop sewing grooves; the sewing grooves of the waistband piece placement board, the trouser loop placement groove, and the trouser loop sewing grooves coincide spatially with the sewing grooves of the trouser loop placement board, the trouser loop placement groove, and the trouser loop sewing grooves.

[0024] Furthermore, the waistband panel placement board has a frosted plate attached below the trouser loop seam groove.

[0025] Furthermore, when the lining piece placement board covers the trouser loop placement board, the frosted plate of the lining piece and the frosted plate of the trouser loop placement board are spatially aligned.

[0026] Furthermore, the base plate, the outer waist piece placement plate, and the inner waist piece placement plate are provided with positioning lines.

[0027] Furthermore, the base plate positioning line is positioned above the second seam groove of the base plate.

[0028] Furthermore, the positioning line of the waist panel placement plate is located below the second sewing groove of the waist panel placement plate.

[0029] Furthermore, the positioning line of the lining piece placement board is set at the free end of the lining piece placement board.

[0030] Furthermore, the inner waist panel pressing plate is provided with a sewing groove with a specification of 93.5cm × 0.8cm.

[0031] Furthermore, when the inner waist piece pressing plate covers the base plate, the outer waist piece placement plate, and the inner waist piece placement plate, the sewing groove of the inner waist piece pressing plate coincides with the first sewing groove of the base plate and the outer waist piece placement plate.

[0032] This invention also provides a method for sewing the waistband of trousers using the above-mentioned template, the sewing method comprising the following steps: Step 1: Place the template on the sewing machine table, and place the enlarged body piece along the positioning line of the base plate. The enlarged body piece will cover the second seam groove of the base plate.

[0033] Step 2: Place the loop placement board on the bottom plate and place the loops in the loop placement slots of the loop placement board.

[0034] Step 3: Place the waist piece placement board over the upper half of the base plate, and place the waist piece along the positioning line of the waist piece placement board. The waist piece will cover the first seam groove of the waist piece placement board and the base plate.

[0035] Step 4: Place the lining waistband piece placement board over the trouser loop placement board, and place the lining waistband pieces along the positioning lines of the lining waistband piece placement board. The lining waistband pieces will cover the first seam groove of the bottom board and the outer waistband piece placement board.

[0036] Step 5: Cover with the inner waist piece pressing plate to press down the inner waist piece and the outer waist piece.

[0037] Step 6: Start the machine and sew the concealed stitches of the lining waistband and outer waistband pieces in the sewing groove of the lining waistband pressing plate, which is also the first sewing groove of the bottom plate and the outer waistband piece placement plate; sew the trouser loops in the trouser loop sewing groove of the bottom plate, the trouser loop placement plate, and the outer waistband piece placement plate.

[0038] Step 7: Pause the machine, open the inner waist panel pressing plate, fold the inner waist panel along the dark line in Step 6, and close the inner waist panel pressing plate.

[0039] Step 8: Start the machine and continue sewing the 0.1 topstitch of the lining and outer waist pieces in the sewing groove of the inner waist piece pressing plate, which is the first sewing groove of the bottom plate and the outer waist piece placement plate.

[0040] Step 9: Pause the machine, open the lining waistband piece pressing plate and the lining waistband piece placement plate, fold the outer waistband piece placement plate over one side, and cover the bottom half of the trouser loop placement plate and the bottom plate. After folding, the lining waistband piece and outer waistband piece sewn in Step 8 will be on top. At this time, the second seam groove of the outer waistband piece placement plate will coincide with the second seam groove of the bottom plate and the seam groove of the trouser loop placement plate.

[0041] Step 10: Start the machine and sew the main body piece, trouser loop, inner waist piece, and outer waist piece together in the second sewing groove of the waistband placement board, which is also the sewing groove of the trouser loop placement board and the second sewing groove of the bottom plate. This completes the semi-automatic sewing of the waistband of the trousers.

[0042] The beneficial effects of adopting the above technical solution are as follows: 1. Simplified operation process: Operators only need to place the fabric pieces on the sewing template according to the step requirements and sew them, which greatly reduces the technical difficulty of sewing the waistband of trousers. Ordinary workers can be competent after simple training. 2. Guaranteed product quality: The horsehair lining of the waistband fabric piece placement board prevents the lining waistband fabric piece from shifting when folded. The frosted plates of the trouser loop placement board and the lining waistband fabric piece placement board prevent the trouser loops from shifting. The sewn waistband of trousers has even stitch depth, and the width of the waistband is consistent. 3. Improved work efficiency: Compared with traditional manual sewing of trouser waistbands, using this template to achieve semi-automatic sewing can save about 42 seconds and improve efficiency by about 19%. Attached Figure Description

[0043] Figure 1-6 This is a schematic diagram of the structure of the waistband sewing template for trousers of the present invention.

[0044] Figure 7-11This is a schematic diagram of the waistband sewing method for trousers according to the present invention.

[0045] Figure labels: 1-Baseboard; 11-First seam groove of baseboard; 12-Second seam groove of baseboard; 13-Seam groove for bottomboard loops; 14-Positioning line of baseboard; 2-Outer waistband piece placement board; 21-First seam groove of outer waistband piece placement board; 22-Second seam groove of outer waistband piece placement board; 23-Horsehair lining board; 24-Positioning line of outer waistband piece placement board; 3-Inner waistband piece pressing board; 31-Seam groove of inner waistband piece pressing board; 4-Blouse placement board; 41-Blouse placement board Sewing groove; 42-Pants loop placement board; 43-Pants loop placement board; 44-Pants loop placement board; 5-Inner waistband piece placement board; 51-Inner waistband piece placement board; 52-Inner waistband piece placement board; 53-Inner waistband piece placement board; 54-Inner waistband piece placement board; 55-Inner waistband piece placement board; 6-Main body piece; 7-Pants loop; 8-Outer waistband piece; 9-Inner waistband piece. Detailed Implementation

[0046] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example 1

[0047] like Figure 1 As shown, the template for assisting in sewing the waistband of trousers includes a base plate 1, a waistband fabric placement board 2, an inner waistband fabric pressing board 3, a trouser loop placement board 4, and an inner waistband fabric placement board 5. One end of the waistband fabric placement board 2, the inner waistband fabric pressing board 3, and the trouser loop placement board 4 are glued to the base plate to form a hinge structure, and one end of the inner waistband fabric placement board 5 is glued to the other end of the trouser loop placement board 4 to form a hinge structure.

[0048] like Figure 2 As shown, the base plate 1 is provided with a first sewing groove 11, a second sewing groove 12, and a trouser loop sewing groove 13 from top to bottom. The first sewing groove 11 has a size of 93.5cm × 0.8cm, the second sewing groove 12 has a size of 92cm × 0.6cm, and the trouser loop sewing groove 13 has a size of 4cm × 0.6cm.

[0049] like Figure 3 As shown, the waistband fabric placement board 2 has a first seam groove 21 and a second seam groove 22. The first seam groove 21 has dimensions of 93.5cm × 0.8cm, and the second seam groove 22 has dimensions of 92cm × 0.6cm. A horsehair lining 23 is attached above the first seam groove of the waistband fabric placement board, and the end of the horsehair lining covers the first seam groove of the waistband fabric placement board. Figure 1As shown, the waistband fabric placement board is attached between the first and second seam grooves of the base plate. When the waistband fabric placement board covers the upper half of the base plate, the first seam groove 21 of the waistband fabric placement board coincides with the first seam groove 11 of the base plate; when the waistband fabric placement board covers the lower half of the base plate, the second seam groove 22 of the waistband fabric placement board coincides with the second seam groove 12 of the base plate.

[0050] like Figure 4 As shown, the loop placement plate 4 has a sewing groove 41, with dimensions of 92cm × 0.6cm. The loop placement plate 4 also has multiple loop placement slots 42, each with dimensions of 11cm × 2cm. The loop placement slots pass through the sewing groove and intersect with it. Loop sewing grooves 43, each with dimensions of 4cm × 0.6cm, are provided within the loop placement slots 42. A frosted board 44 is attached below the loop sewing grooves 43. Figure 1 As shown, the trouser loop placement board is pasted between the first and second seam grooves of the base plate, below the waistband piece placement board. When the trouser loop placement board 4 covers the base plate 1, the seam grooves 41 and 43 of the loop placement board coincide with the second seam groove 12 and 13 of the base plate.

[0051] like Figure 5 As shown, the waistband fabric placement board 5 has a sewing groove 51, with dimensions of 92cm × 0.6cm. The waistband fabric placement board 5 also has multiple loop placement grooves 52, each measuring 11cm × 2cm. The loop placement grooves pass through the sewing groove and intersect with it. Loop sewing grooves 53, each measuring 4cm × 0.6cm, are provided within the loop placement grooves 52. A frosted board 54 is attached below the loop sewing grooves 53. Figure 1 As shown, when the waistband piece placement board 5 covers the trouser loop placement board 4, the sewing grooves 51, trouser loop placement grooves 52, trouser loop sewing grooves 53, and frosted plate 54 of the waistband piece placement board coincide with the sewing grooves 41, trouser loop placement grooves 42, trouser loop sewing grooves 43, and frosted plate 44 of the trouser loop placement board; the sewing grooves 52 and trouser loop sewing grooves 53 of the waistband piece placement board coincide with the second sewing groove 12 and trouser loop sewing groove 13 of the bottom plate.

[0052] like Figure 6 As shown, the inner waistband fabric pressing plate 3 has a sewing groove 31, with dimensions of 93.5cm × 0.8cm. (As shown...) Figure 1 As shown, when the waist piece pressing plate cover 3 is on the base plate 1, the outer waist piece placing plate 2, and the inner waist piece placing plate 5, the sewing 31 of the inner waist piece pressing plate coincides with the first sewing groove 11 of the base plate and the first sewing groove 21 of the outer waist piece placing plate.

[0053] like Figure 2 ,3 As shown in Figure 5, the base plate has a positioning line 14, which is located above the second sewing groove 12 of the base plate. The front waist piece placement board has a positioning line 24, which is located below the second sewing groove 22 of the front waist piece placement board. The inner waist piece placement board 5 has a positioning line 55, which is located at the free end of the inner waist piece placement board. Example 2

[0054] like Figure 7-11 As shown, a method for sewing a side zipper pocket using the above-mentioned sewing template includes the following steps: Step 1: As Figure 7 As shown, the template is placed on the sewing machine table, and the enlarged body piece 6 is placed along the positioning line 14 of the base plate. The enlarged body piece 6 covers the second sewing groove 12 of the base plate.

[0055] Step 2: As Figure 8 As shown, the loop placement plate 4 is placed on the base plate 1, and the loop 7 is placed in the loop placement groove 42 of the loop placement plate.

[0056] Step 3: As Figure 8 As shown, the waist piece placement board 2 is placed on the upper half of the base plate, and the waist piece 8 is placed along the positioning line 24 of the waist piece placement board. The waist piece 8 covers the first sewing groove 21, the second sewing groove 22 of the waist piece placement board and the first sewing groove 11 of the base plate.

[0057] Step 4: As Figure 9 As shown, place the lining waist piece placement board 5 on the trouser loop placement board 4, and place the lining waist piece 9 along the positioning line 55 of the lining waist piece placement board. The lining waist piece covers the first sewing groove 11 of the bottom plate and the first sewing groove 21 of the outer waist piece placement board.

[0058] Step 5: Cover with the inner waist piece pressing plate to press down the inner waist piece and the outer waist piece.

[0059] Step 6: Start the machine and sew the concealed stitches of the lining waistband and outer waistband pieces in the sewing groove of the lining waistband pressing plate, which is also the first sewing groove of the bottom plate and the outer waistband piece placement plate; sew the trouser loops in the trouser loop sewing groove of the bottom plate, the trouser loop placement plate, and the outer waistband piece placement plate.

[0060] Step 7: As Figure 10 As shown, pause the machine, open the inner waist piece pressing plate 3, fold the inner waist piece 9 along the dark line of step 6, and cover it with the inner waist piece pressing plate 3.

[0061] Step 8: Start the machine and continue sewing the 0.1 topstitch of the lining and outer waist pieces in the sewing groove of the inner waist piece pressing plate, which is the first sewing groove of the bottom plate and the outer waist piece placement plate.

[0062] Step 9: As Figure 11 As shown, pause the machine, open the inner waistband piece pressing plate 3 and the inner waistband piece placement plate 5, fold the outer waistband piece placement plate 2 over one side, and cover the bottom half of the trouser loop placement plate 4 and the bottom plate 1. After folding, the inner waistband piece and outer waistband piece sewn in step 8 are simultaneously covered on top. At this time, the second seam groove of the outer waistband piece placement plate coincides with the second seam groove of the bottom plate and the seam groove of the trouser loop placement plate.

[0063] Step 10: Start the machine and sew the main body piece, trouser loop, inner waist piece, and outer waist piece together in the second sewing groove of the waistband placement board, which is also the sewing groove of the trouser loop placement board and the second sewing groove of the bottom plate. This completes the semi-automatic sewing of the waistband of the trousers.

[0064] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A template for assisting in sewing the waistband of trousers, comprising a base plate, a waistband fabric placement board, an inner waistband fabric pressing board, a trouser loop placement board, and an inner waistband fabric placement board; one end of the waistband fabric placement board, the inner waistband fabric pressing board, and the trouser loop placement board are glued to the base plate to form a hinged structure, and one end of the inner waistband fabric placement board is glued to the other end of the trouser loop placement board to form a hinged structure; characterized in that... The base plate and the outer waistband piece placement board are provided with first and second sewing grooves of the same specifications from top to bottom. The inner waistband piece pressing plate is provided with a sewing groove of the same specifications as the first sewing groove of the base plate. The trouser loop placement board and the inner waistband piece placement board are provided with sewing grooves of the same specifications as the second sewing groove of the base plate. The trouser loop placement board and the inner waistband piece placement board are provided with multiple trouser loop placement grooves of the same specifications. The trouser loop placement grooves of the trouser loop placement board and the inner waistband piece placement board pass through the sewing grooves of the trouser loop placement board and the inner waistband piece placement board, and are provided with... The bottom plate has a trouser loop sewing groove with the same specifications as the trouser loop placement board and the inner waistband piece placement board; the outer waistband piece placement board and the trouser loop placement board are pasted between the first and second sewing grooves of the bottom plate, and the trouser loop placement board is pasted below the outer waistband piece placement board; a horsehair lining board is pasted above the first sewing groove of the outer waistband piece placement board; the trouser loop placement board and the inner waistband piece placement board have a consistent frosted plate; the bottom plate, the outer waistband piece placement board, and the inner waistband piece placement board have positioning lines.

2. The template for assisting in sewing the waistband of trousers as described in claim 1, characterized in that... The first seam groove of the bottom plate and the outer waistband piece placement plate has a size of 93.5cm × 0.8cm, and the second seam groove has a size of 92cm × 0.6cm; the seam groove of the inner waistband piece pressing plate has a size of 93.5cm × 0.8cm; and the seam groove of the corresponding trouser loop placement plate and inner waistband piece placement plate has a size of 92cm × 0.6cm.

3. The template for assisting in sewing the waistband of trousers as described in claim 1, characterized in that... The trouser loop placement groove of the trouser loop placement board and the inner waistband piece placement board is 11cm×2cm; the trouser loop sewing groove of the bottom plate, the trouser loop placement board and the inner waistband piece placement board is 4cm×0.6cm.

4. The template for assisting in sewing the waistband of trousers as described in claim 1, characterized in that... The end of the horsehair lining covers the first seam groove of the waist panel placement board.

5. The template for assisting in sewing the waistband of trousers as described in claim 1, characterized in that... The frosted plates of the trouser loop placement board and the inner waistband piece placement board are attached to the bottom of the sewing grooves of the trouser loop placement board and the inner waistband piece placement board.

6. The template for assisting in sewing the waistband of trousers as described in claim 1, characterized in that... The base plate positioning line is located above the second sewing groove of the base plate; the outer waist piece placement plate positioning line is located below the second sewing groove of the outer waist piece placement plate; and the inner waist piece placement plate positioning line is located at the free end of the inner waist piece placement plate.

7. A sewing method using the auxiliary trouser waistband sewing template according to any one of claims 1-6, characterized in that, Includes the following steps: Step 1: Place the template on the sewing machine table, and place the enlarged body piece along the positioning line of the base plate. The enlarged body piece will cover the second seam groove of the base plate. Step 2: Place the loop placement board on the bottom plate and place the loops in the loop placement slots of the loop placement board; Step 3: Place the waist piece placement board on the upper half of the base plate, and place the waist piece along the positioning line of the waist piece placement board. The waist piece will cover the first seam groove of the waist piece placement board and the base plate. Step 4: Place the lining waistband piece placement board over the trouser loop placement board, and place the lining waistband pieces along the positioning lines of the lining waistband piece placement board. The lining waistband pieces will cover the first seam groove of the bottom board and the outer waistband piece placement board. Step 5: Cover with the inner waist piece pressing plate to press down the inner waist piece and the outer waist piece; Step 6: Start the machine and sew the concealed stitches of the lining waistband and outer waistband pieces in the sewing groove of the lining waistband pressing plate, which is also the first sewing groove of the bottom plate and the outer waistband piece placement plate; sew the trouser loops in the trouser loop sewing groove of the bottom plate, the trouser loop placement plate, and the outer waistband piece placement plate. Step 7: Pause the machine, open the inner waist piece pressing plate, fold the inner waist piece along the hidden line in step 6, and close the inner waist piece pressing plate. Step 8: Start the machine and continue sewing the 0.1 topstitch of the lining and outer waist pieces in the sewing groove of the inner waist piece pressing plate, that is, the first sewing groove of the bottom plate and the outer waist piece placement plate; Step 9: Pause the machine, open the lining waistband piece pressing plate and the lining waistband piece placement plate, fold the outer waistband piece placement plate over one side, and cover the bottom half of the trouser loop placement plate and the bottom plate. After folding, the lining waistband piece and outer waistband piece sewn in Step 8 will be on top. At this time, the second seam groove of the outer waistband piece placement plate coincides with the second seam groove of the bottom plate and the seam groove of the trouser loop placement plate. Step 10: Start the machine and sew the main body piece, trouser loop, inner waist piece, and outer waist piece together in the second sewing groove of the waistband placement board, which is also the sewing groove of the trouser loop placement board and the second sewing groove of the bottom plate. This completes the semi-automatic sewing of the waistband of the trousers.

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