A shirt placket lining forming device

Abstract

The present invention discloses a lining forming device for a shirt placket, which is used to prepare a shirt placket with an inner lining; the forming device includes: the first fabric feeding assembly includes a base and a partition piece; the base has a hollow channel, and the hollow channel is blocked by the partition piece to form a fabric feeding area, a fabric passing area and a fabric limiting area, and the combined and connected positions of each area in sequence are corner structures; a second fabric feeding assembly, the second fabric feeding assembly includes a connecting piece and a fabric guiding structure, the connecting piece is installed between the fabric feeding area and the fabric limiting area, and the connecting piece has a material passing channel for guiding the inner lining cloth and clamping the inner lining cloth between the fabric feeding area and the fabric passing area; a fabric guiding structure, which is installed on the sewing machine workbench and is used to guide the inner lining cloth to the material passing channel of the connecting piece; a lining forming device for a shirt placket is provided, which can greatly improve the production efficiency, and the formed placket is flat as a whole, with uniform size, width, etc. and is easy to shape, suitable for mass production.

Description

Technical Field

[0001] The present invention relates to the garment industry, and particularly to a device for forming a shirt placket with a lining. Background Art

[0002] Currently, the existing shirt plackets are made of a single layer of fabric, and the plackets supported by the single layer of fabric are soft and uneven, and are prone to wrinkling after being washed. Therefore, the existing shirts are improved to have a placket with an inner lining (i.e., a lining cloth is sandwiched inside);

[0003] The existing shirt plackets with added lining cloth need multiple processes to be realized during the manufacturing process. The plackets are folded, ironed, dotted, and sewn in sequence. The above process has the following defects: (1) When folding the placket, it is necessary to manually hold the fabric for folding and then iron it. Due to the large length of the placket, it is easy to shift or bend during ironing, which in turn causes the subsequent sewing to become distorted and uneven. Eventually, the sewing line is not straight, affecting the overall aesthetics of the shirt; (2) When sewing, the sewing line can only be inserted corresponding to the edge of the lining. If it is inserted in the middle of the lining, the edge of the lining will deform after being washed, resulting in the entire placket bulging, affecting the aesthetics of the whole shirt; Therefore, it can only be inserted at the edge of the lining, and it is very difficult to align by the naked eye, so the processing is very difficult and requires highly experienced staff to operate. (3) When sewing, it is impossible to ensure that the lining is completely sewn to the outside, and it is easy to produce a detachment phenomenon, resulting in defective products; (4) When the outer cloth wraps the lining, it is impossible to ensure that it is fully wrapped because the sewing operator cannot see clearly with the naked eye. If the outer cloth does not fully wrap the lining, in a white shirt or a shirt with a light color, the fabric edge inside the placket can be seen, which not only has poor aesthetics, but also the fabric edge is equally prone to wrinkling, making the whole placket distorted and bulging, seriously affecting the appearance; (5) The production efficiency is extremely low. If a qualified placket is to be sewn, it takes 4 - 10 minutes for a skilled tailor to make it;

[0004] In summary, the existing equipment for preparing plackets with inner linings still needs to be further improved to improve production efficiency and product quality. Summary of the Invention

[0005] The purpose of the present invention is to solve the existing problems and provide a device for forming a shirt placket with a lining, which has a simple structure, reasonable design and is easy to implement. This device can greatly improve production efficiency, and the formed placket is overall flat, with uniform size, width, etc. and is easy to shape, suitable for mass production;

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A device for forming a shirt placket with a lining, which is used to prepare a shirt placket with an inner lining; the forming device includes:

[0008] The first fabric feeding component is fixed to the workbench of the sewing machine through a locking member and is for the placket fabric to enter. The first fabric feeding component includes a base and a partition piece. The base has a hollow channel, and the hollow channel is blocked by the partition piece to form a fabric feeding area, a fabric passing area, and a fabric limiting area, and the combined and connected positions of each area in sequence are corner structures;

[0009] The second fabric feeding component includes a connecting member and a fabric guiding structure. The connecting member is installed between the fabric feeding area and the fabric limiting area, and the connecting member has a material passing channel for guiding the lining fabric in and clamping the lining fabric between the fabric feeding area and the fabric passing area. The fabric guiding structure is installed on the workbench of the sewing machine and is used for guiding the lining fabric to the material passing channel of the connecting member;

[0010] The glue spraying structure is arranged on the fabric guiding structure. The glue spraying structure includes a glue spraying member for coating glue on the lining fabric;

[0011] Wherein, the lining fabric enters the material passing channel after passing through the fabric guiding structure and being sprayed with glue by the glue spraying member. The placket fabric sequentially passes through the fabric feeding area, the fabric passing area, turns to the limiting area, and the placket fabric is folded in the hollow channel and wraps the lining fabric so that the placket fabric wrapping the lining fabric is led out and sewn into shape.

[0012] Further, the base is further provided with first and second mounting pieces, and the first and second mounting pieces define a mounting position for the connecting piece to be installed. The lower surface of the first mounting piece and the hollow channel form the fabric feeding area. The upper surface of the second mounting piece and the partition piece define the fabric limiting area.

[0013] Further, the fabric guiding structure includes a bracket, a motor, and first and second fabric guiding wheels, a glue sticking roller, and a fabric feeding unit installed on the bracket. The motor drives the second fabric guiding wheel to rotate. The first fabric guiding wheel is used for guiding the lining fabric to move to the second fabric guiding wheel. The second fabric guiding wheel and the glue sticking roller cooperate to form a fabric passing gap, and the glue spraying member sprays glue on the glue sticking roller. The fabric feeding unit is suspended above the connecting piece through the bracket and transports the lining fabric to the material passing channel of the connecting piece.

[0014] Further, the fabric feeding unit includes a tension sensor, a suspension member, and a swing rod. The suspension member is provided with the material passing channel and is suspended above the connecting piece through the bracket. The swing rod is arranged between the second fabric guiding wheel and the suspension member and drives and presses the lining fabric through a swinging mechanism. The tension sensor is arranged between the swing rod and the suspension member and is used for sensing the tension of the lining fabric between the second fabric guiding wheel and the suspension member.

[0015] Further, a groove is formed on the suspension member, and the groove communicates with the material passing channel.

[0016] A forming method for adding a lining to a shirt placket, the forming method includes the following steps:

[0017] Step 1: Import the interlining. Place the lining material into the cloth guiding unit, and guide the inner lining cloth through the glue roller to apply glue and then import it into the material passing channel of the connecting piece.

[0018] Step 2: Import the placket cloth. Import the placket cloth through the hollow channel, and bend it inside the hollow channel through the partition member to form three layers of cloth.

[0019] Step 3: Combine. Set the glued inner lining cloth between the three layers of placket cloth, export it through the outlet of the hollow channel, and drive the sewing needle to pass through and sew to sew the folded cloth into shape.

[0020] Step 4: Cut. Cut the placket to any length according to the length.

[0021] The beneficial effects obtained by the technical solution of the present invention compared with the prior art are as follows:

[0022] (1) The present invention provides a device and a forming method for adding a lining to a shirt placket. The structure is simple, the design is reasonable and easy to implement. The device forms a turn of the placket cloth through the first cloth feeding component, guides the glued inner lining cloth through the second cloth feeding component, and combines them at the outlet of the hollow channel of the base, so that the placket cloth fully covers and wraps the inner lining cloth. Finally, it is sewn into shape by the sewing needle at the outlet of the hollow channel of the base. The formed placket is flat, with uniform size and width. Moreover, the glued inner lining cloth is easier to shape. After the placket cloth is fully covered, its edges are sewn and shaped, and the middle part is in a fitting state, making the appearance of the placket more beautiful. In addition, this forming device does not require experienced staff to operate, does not require visual comparison, reduces the work intensity, and can also greatly improve the production efficiency. The formed placket has uniform dimensions, is more suitable for mass production, and is easy to meet the production requirements.

[0023] (2) The first and second mounting pieces provided on the base of the present invention realize the assembly and adjustment of the second cloth feeding component, and can adjust the sewing position of the inner lining cloth and the placket, suitable for plackets of different sizes.

[0024] (3) The present invention uses a cloth guiding structure to smoothly guide the inner lining cloth into the connecting piece, and ensures that the inner lining cloth can be evenly coated with glue through the glue roller, and provides enough space for the glued inner lining cloth to dry, so as not to over-bond, ensuring the final shaping effect of the placket.

[0025] (4) The present invention also uses the tension sensor and the swing rod in cooperation. When it senses that the inner lining cloth is in a slightly tensioned state, it can swing the swing rod to press down the inner lining cloth, so that the inner lining cloth is in a relaxed state. This effectively prevents the inner lining cloth from being always tightened during sewing. When the inner lining cloth is in a tightened state, it is easy to cause excessive deformation of the inner lining cloth, and subsequent deformation after washing causes the appearance of the placket to wrinkle accordingly. Description of the Drawings

[0026] The drawings described herein are provided to further understand the present invention and form a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0027] Figure 1 is a schematic three-dimensional structure diagram of the molding device described in the present invention;

[0028] Figure 2 is a schematic three-dimensional structure diagram of the first component described in the present invention;

[0029] Figure 3 is a schematic three-dimensional structure diagram of the connecting member described in the present invention;

[0030] Figure 4 is a schematic three-dimensional structure diagram of the assembly of the first component and the connecting member described in the present invention;

[0031] Figure 5 is a schematic three-dimensional structure diagram of the cloth guiding structure described in the present invention. Detailed Description of the Preferred Embodiments

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] As Figures 1-4 shown, the present invention relates to a shirt placket lining forming device and a forming method, which are used to prepare a shirt placket with a lining;

[0034] The forming device includes:

[0035] A first fabric feeding component 1, which is fixed to the workbench 100 of the sewing machine through a locking member and is for the placket fabric A to enter; the first fabric feeding component 1 includes a base 11 and a partition piece 12; the base 11 has a hollow channel, and the hollow channel is blocked by the partition piece 12 to form a fabric feeding area 1A, a fabric passing area 1B and a fabric limiting area 1C, and the combined and connected positions of the respective areas in sequence are corner structures 1D; the base 11 is further provided with first and second mounting pieces 13, 14, and the first and second mounting pieces 13, 14 define a mounting position for the connecting piece to be installed; the lower surface of the first mounting piece 13 and the hollow channel form the fabric feeding area 1A; the upper surface of the second mounting piece 14 and the partition piece 12 define the fabric limiting area 1C;

[0036] A second fabric feeding component 2, (as Figures 3-5As shown in the figure, the second fabric feeding assembly 2 includes a connecting member 21 and a fabric guiding structure 22. The connecting member 21 is installed between the fabric feeding area 1A and the fabric limiting area 1C, and the connecting member 21 has a material passing channel 210 through which the lining fabric B is introduced and the lining fabric B is clamped between the fabric feeding area 1A and the fabric passing area 1B; the fabric guiding structure 22 is installed on the sewing machine table 100 and is used to guide the lining fabric B to the material passing channel 210 of the connecting member 21; the fabric guiding structure 22 includes a bracket 221, a motor (not shown in the figure), and the first and second fabric guiding wheels 222, 223, an adhesive roller 224 and a fabric feeding unit 225 installed on the bracket 221; the motor (not shown in the figure) drives the second fabric guiding wheel 223 to rotate; the first fabric guiding wheel 222 is used to guide the lining fabric B to move to the second fabric guiding wheel 223; the second fabric guiding wheel 223 and the adhesive roller 224 cooperate to form a fabric passing gap, and the glue spraying member 31 sprays glue on the adhesive roller 224; the fabric feeding unit 225 is suspended above the connecting member 21 through the bracket 221 and transports the lining fabric B to the material passing channel 210 of the connecting member 21; and the fabric guiding structure 22 further includes a tension adjusting mechanism for controlling the tension of the lining fabric B. The tension adjusting mechanism includes a tension sensor 2251 for real-time monitoring and adjusting the tension of the lining fabric B.

[0037] The fabric feeding unit 225 includes a tension sensor 2251, a suspension member 2252 and a swing rod 2253. The suspension member 2252 is provided with the material passing channel 210 and is suspended above the connecting member 21 through the bracket 221; the suspension member 2252 is further provided with a groove 2252A which communicates with the material passing channel 210; the swing rod 2253 is arranged between the second fabric guiding wheel 223 and the suspension member 2252 and drives the lining fabric B to be pressed through the swing rod 2253; the tension sensor 2251 is arranged between the swing rod 2253 and the suspension member 2252 and is used to sense the tension of the lining fabric B between the second fabric guiding wheel 223 and the suspension member 2252, and adjust the swing amplitude of the swing rod 2253 according to the sensing result to control the tension of the lining fabric B.

[0038] The glue spraying structure 3 is arranged on the fabric guiding structure 22; the glue spraying structure 3 includes a glue spraying member 31 which is used to coat glue on the lining fabric B.

[0039] Wherein, the placket fabric A turns through the fabric feeding area 1A to the fabric passing area 1B and the limiting area, and the lining fabric B enters the material passing channel 210 after passing through the fabric guiding structure 22 and being sprayed with glue by the glue spraying member 31; the placket fabric A is folded through the hollow channel of the base 11 and wraps the lining fabric B so that the placket fabric A wrapping the lining fabric B is led out and sewn into shape.

[0040] Specific embodiments are as follows Figures 1 to 5As shown in the figure, a shirt placket lining forming device and forming method according to the present invention mainly include the following components: a base 11, a partition piece 12, a connecting piece 21, a bracket 221, a motor (not shown in the figure), first and second cloth guiding wheels 222, 223, an adhesive roller 224, a tension sensor 2251, a suspension member 2252 and a swing rod 2253;

[0041] Actual assembly and manufacturing method. The forming device is installed on the workbench 100 of the sewing machine. Regarding the sewing machine part, it is prior art, and the sewing needle and the advancing fabric sewing structure on the sewing machine will not be elaborated here. The forming device includes two parts:

[0042] The first part is used to combine the placket cloth A and the lining cloth B and export them for sewing;

[0043] The first feeding assembly 1 of the first part includes a base 11, a partition piece 12 and first and second mounting pieces 13, 14; the base 11 is a sheet metal part, which is bent to form a hollow channel, and after bending, it forms a bottom plate for fixedly connecting with the workbench 100. It should be noted that a through hole (not shown in the figure) is opened on the lower surface of the bottom plate for the advancing fabric device of the workbench 100 to extend out, so that the fabric can move forward during sewing; the hollow channel is blocked by the partition piece 12 to form a feeding area 1A, a fabric passing area 1B and a fabric limiting area 1C, and the combined and connected positions of the areas 1A, 1B, 1C in sequence are corner structures 1D; it should be noted that the first and second mounting pieces 13, 14 define a mounting position for the connecting piece to be installed, and the lower surface of the first mounting piece 13 and the hollow channel form the feeding area 1A, and the upper surface of the second mounting piece 14 and the partition piece 12 define the fabric limiting area 1C; one side of the placket cloth A enters from the feeding area 1A, then reaches the fabric passing area 1B through the bending part between the feeding area 1A and the fabric passing area 1B, and then bends into the fabric limiting area 1C, so that the placket forms a fully covered three-layer fabric after two bends;

[0044] The second feeding assembly 2 of the first part includes a connecting piece 21; the connecting piece 21 is also formed with a material passing channel 210 by bending a sheet metal part, and the connecting piece 21 is installed on the first mounting piece 13 so that it is located between the feeding area 1A and the fabric limiting area 1C, so that the lining cloth B is clamped between the second and third layers of the placket cloth A;

[0045] The second part is used to guide the lining cloth B to the connecting piece 21; a cloth guiding structure 22, which is installed on the sewing machine workbench 100 and is used to guide the lining cloth B to the material passing channel 210 of the connecting piece 21; the cloth guiding structure 22 includes a bracket 221, a motor (not shown in the figure) and first and second cloth guiding wheels 222, 223, an adhesive roller 224, a tension sensor 2251, a suspension member 2252 and a swing rod 2253 installed on the bracket 221;

[0046] The motor (not shown in the figure) is installed inside the sewing machine bracket 221 and drives the second fabric guide wheel 223 to rotate. A plurality of guide wheels are arranged between the second fabric guide wheel 223 and the suspension member 2252, so as to smoothly guide the lining cloth B into the connecting member 21. Wherein, an adhesive roller 224 is arranged on the side of the second fabric guide wheel 223, and a cloth passing gap is formed between the two. In this way, when the lining cloth B passes through the second fabric guide wheel 223, the glue on the adhesive roller 224 can be coated on one side of the lining cloth B.

[0047] The suspension member 2252 is provided with a groove body 2252A communicating with the material passing channel 210, and a finger can be inserted into it to smoothly dial the lining cloth B through the groove body 2252A, and the suspension member 2252 is fixed and suspended above the connecting member 21.

[0048] The swing rod 2253 is arranged between the second fabric guide wheel 223 and the suspension member 2252, and drives to press against the lining cloth B through a swing mechanism until the lining cloth B is in a relaxed state. It should be noted that the movement of the swing rod 2253 is realized through the induction of the tension sensor 2251. For example, when the tension sensor 2251 senses that the lining cloth B between the second fabric guide wheel 223 and the suspension member 2252 is in a tensioned state, a control signal can be sent to the driving member of the swing rod 2253, and then the swing rod 2253 is driven to press down against the lining cloth B to make it relaxed. The driving structure of the swing rod 2253 is through a servo motor (not shown in the figure) and a connecting rod 2253A. The servo motor (not shown in the figure) rotates, driving the swing rod 2253 on the connecting rod 2253A to rotate a certain angle, and then the swing rod 2253 moves in an arc. The tension sensor 2251 is a prior art, and is directly or indirectly matched with the servo motor (not shown in the figure) through a circuit to control the action of the servo motor (not shown in the figure).

[0049] The glue spraying structure 3 includes a glue spraying member 31, which is used to reach the glue on the adhesive roller 224, so that the fabric passing through the adhesive roller 224 can be attached with glue.

[0050] The actual method for manufacturing and forming the front placket includes the following steps:

[0051] Step 1, import the lining cloth. The lining cloth B is sequentially passed through the first fabric guide wheel 222, the cloth passing gap between the second fabric guide wheel 223 and the adhesive roller 224, the tension sensor 2251, the suspension member 2252, and finally enters the material passing channel 210 of the connecting member 21. The tension of the lining cloth is adjusted through the tension sensor.

[0052] Step 2: Import the placket fabric A. One side of the placket fabric A enters from the fabric feeding area 1A, then reaches the fabric passing area 1B through the bending part between the fabric feeding area 1A and the fabric passing area 1B, and then bends into the fabric limiting area 1C. In this way, the placket fabric A forms a fully covered three-layer fabric after two bends.

[0053] Step 3: Combine the placket fabric A with the lining fabric B. The glued lining fabric B is sandwiched between the second layer and the third layer of the three-layer placket fabric A, and is exported through the outlet 10 of the hollow channel. Finally, drive the sewing needle to pass through and sew to form the sewn fabric with the covering lining fabric.

[0054] Step 4: Cutting. Cut out the placket with a suitable length according to the length.

[0055] In the above process, when the lining fabric B passes through the fabric passing gap, a thin layer of glue can be coated through the glue roller 224, and the thin glue is allowed to pre-shape between the second fabric guiding wheel 223 and the hanging member 2252 for sufficient time; in addition, the tension sensor 2251 senses whether the lining fabric B is in a tensioned state between the second fabric guiding wheel 223 and the hanging member 2252. If so, it feeds back to the servo motor (not shown in the figure) to act, and drives the swing rod 2253 to swing, so that the swing rod 2253 presses down on the lining fabric B, so that the lining fabric B becomes a relaxed state, thus preventing the lining fabric B from being always in a tense state during the sewing process, preventing the lining fabric B from being sewn and formed in a tense state, and preventing the placket from wrinkling or bulging after subsequent washing and deformation.

[0056] The present invention provides a shirt placket lining forming device and a forming method, which have a simple structure, are reasonably designed and easy to implement. The device forms a turn in the placket fabric through the first fabric feeding component, and guides the lined fabric after being glued through the second fabric feeding component and combines them at the outlet of the hollow channel of the base, so that the placket fabric is fully laid and wraps the lined fabric. Finally, it is sewn and formed by a sewing needle at the outlet of the hollow channel of the base. The formed placket is flat, with uniform size and width. Moreover, the lined fabric after being glued is easier to be shaped. After the placket fabric is fully laid, its edge is sewn and shaped, and the middle part is in a fitting state, making the appearance of the placket more beautiful. In addition, this forming device does not require experienced staff to operate and does not require visual comparison, reducing the work intensity. Moreover, it can greatly improve the production efficiency. The formed plackets have unified sizes and are more suitable for mass production, easily meeting the production requirements. The first and second mounting pieces provided on the base of the present invention realize the assembly and adjustment of the second fabric feeding component, and can adjust the sewing position of the lined fabric and the placket, suitable for plackets of different sizes. The present invention uses a fabric guiding structure to smoothly guide the lined fabric into the connecting piece, and ensures that the lined fabric can be evenly coated with glue through a glue roller, and provides enough space for the glued lined fabric to dry, without excessive adhesion, ensuring the final forming effect of the placket. The present invention also uses a tension sensor in cooperation with a swing rod. When it senses that the lined fabric is in a slightly tensioned state, it can swing the swing rod to press down the lined fabric, so that the lined fabric is in a relaxed state, effectively preventing the lined fabric from being always tightened during sewing. When the lined fabric is in a tightened state, it is easy to cause excessive deformation of the lined fabric, and subsequent deformation after washing will cause the appearance of the placket to wrinkle accordingly.

[0057] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A shirt placket lining forming device, which is used to prepare a shirt placket with an inner lining; It is characterized in that: The forming device includes: A first fabric feeding component, which is fixed to the workbench of the sewing machine through a locking piece and allows the placket fabric to enter; the first fabric feeding component includes a base and a partition piece; the base has a hollow channel, and the hollow channel is blocked by the partition piece to form a fabric feeding area, a fabric passing area, and a fabric limiting area, and the combined and connected positions of each area in sequence are corner structures; A second fabric feeding component, which includes a connecting piece and a fabric guiding structure. The connecting piece is installed between the fabric feeding area and the fabric limiting area, and the connecting piece has a material passing channel for guiding the lining fabric in and clamping the lining fabric between the fabric feeding area and the fabric passing area; the fabric guiding structure is installed on the workbench of the sewing machine and is used to guide the lining fabric to the material passing channel of the connecting piece; and the fabric guiding structure includes a tension sensor for controlling the tension of the lining fabric; A glue spraying structure, which is arranged on the fabric guiding structure; the glue spraying structure includes a glue spraying piece for coating glue on the lining fabric; Wherein, the lining fabric enters the material passing channel after passing through the fabric guiding structure and being sprayed with glue by the glue spraying piece; the placket fabric sequentially passes through the fabric feeding area, the fabric passing area, turns to the limiting area, and the placket fabric is folded and wrapped around the lining fabric in the hollow channel, so that the placket fabric wrapped with the lining fabric is led out and sewn into shape.

2. A shirt placket lining forming device as described in claim 1, It is characterized in that: The base is further provided with first and second mounting pieces, and the first and second mounting pieces define a mounting position for installing a connecting piece; the lower surface of the first mounting piece and the hollow channel form the fabric feeding area; the upper surface of the second mounting piece and the partition piece define the fabric limiting area.

3. A shirt placket lining forming device as described in claim 1 or 2, It is characterized in that: The fabric guiding structure includes a bracket, a motor, and first and second fabric guiding wheels, a glue sticking roller, and a fabric feeding unit installed on the bracket; the motor drives the second fabric guiding wheel to rotate; the first fabric guiding wheel is used to guide the displacement of the lining fabric to the second fabric guiding wheel; the second fabric guiding wheel and the glue sticking roller cooperate to form a fabric passing gap, and the glue spraying piece sprays glue on the glue sticking roller; the fabric feeding unit is suspended above the connecting piece through the bracket and transports the lining fabric to the material passing channel of the connecting piece.

4. A shirt placket lining forming device as described in claim 3, It is characterized in that: The fabric feeding unit includes a tension sensor, a suspension piece, and a swing rod. The suspension piece is provided with the material passing channel and is suspended above the connecting piece through the bracket; the swing rod is arranged between the second fabric guiding wheel and the suspension piece and drives and presses the lining fabric through a swing mechanism; the tension sensor is arranged between the swing rod and the suspension piece for sensing the tension of the lining fabric between the second fabric guiding wheel and the suspension piece and adjusting the swing amplitude of the swing rod according to the sensing result to control the tension of the lining fabric.

5. A shirt placket lining forming device as described in claim 4, It is characterized in that: A groove is formed on the suspension piece, and the groove communicates with the material passing channel.

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