Shirt hem splitting and positioning device for flatcar sewing machine

Abstract

The utility model relates to the field of sewing machines, in particular to a shirt hem splitting and positioning device for a flatcar sewing machine. Comprising a first positioning plate detachably connected to the flatcar sewing machine, a first positioning piece used for fixing the position of the first positioning plate on the flatcar sewing machine, and a measuring piece used for measuring the length from the first positioning plate to a needle head of the flatcar sewing machine. The device has the advantage that an operator can judge the splitting length more conveniently.

Description

Technical Field

[0001] This application relates to the field of sewing machines, and more particularly to a shirt hem slit positioning device for a flatbed sewing machine. Background Technology

[0002] In the shirt manufacturing industry, to ensure the shirt's aesthetics and comfort, vents are typically added to both sides of the hem. Currently, this process mainly involves sewing the front and back pieces of fabric together using a sewing machine, leaving a certain length at the hem, and binding the edges to complete the vents and the binding around the vents.

[0003] Currently, the determination of slit length mainly relies on the operator's experience, which leads to significant errors in control. This not only affects the appearance of the shirt but also reduces production efficiency. Utility Model Content

[0004] To facilitate operators in judging the slit length more easily, this application provides a shirt hem slit positioning device for a flatbed sewing machine.

[0005] The technical solution provided in this application for a shirt hem slit positioning device for a flatbed sewing machine is as follows:

[0006] A shirt hem slit positioning device for a flatbed sewing machine includes a first positioning plate detachably connected to the flatbed sewing machine, a first positioning component for fixing the position of the first positioning plate on the flatbed sewing machine, and a measuring component for measuring the length from the first positioning plate to the needle tip of the flatbed sewing machine.

[0007] By adopting the above technical solution, the first positioning plate can be fixed on the flatbed sewing machine by the first positioning component. Then, the distance between the first positioning plate and the needle of the flatbed sewing machine is detected by the measuring component, so that the distance is consistent with the slit length to be processed. When slitting each shirt, the hem of the shirt can be made to abut against the first positioning component. At this time, the shirt is sewn by the needle of the flatbed sewing machine. The length left at the hem of the shirt is the slit length to be processed, which ensures the consistency of the slit length.

[0008] Optionally, the first positioning plate includes a first plate, a second plate vertically fixed to one end of the first plate, and a third plate vertically fixed to the other end of the first plate. The second plate and the third plate are located on the same side of the first plate, and the first positioning member is mounted on the second plate.

[0009] By adopting the above technical solution, when in use, the second and third plates can be clamped at both ends of the sewing machine, so that the first plate abuts against the upper surface of the sewing machine, thereby positioning the shirt processed on the sewing machine.

[0010] Optionally, the first positioning element includes an abutment plate slidably connected to the side of the second plate facing the third plate and a rotating rod rotatably connected to the abutment plate, the rotating rod being threadedly connected to the second plate.

[0011] By adopting the above technical solution, when the second plate and the third plate are clamped at both ends of the sewing machine, the rotating rod can be rotated. Since the rotating rod is threadedly connected to the second plate, the rotating rod will drive the abutment plate to move closer to or away from the third plate, thereby abutting against the end of the sewing machine, thus fixing the position of the first positioning plate on the sewing machine and completing the installation and fixing of the first positioning plate.

[0012] Optionally, a mounting groove for mounting the measuring element is provided on one side of the first plate, the mounting groove communicating with the side of the first plate away from the second plate, and the measuring element includes a measuring tape.

[0013] By adopting the above technical solution, the distance between the sewing machine needle and the first plate can be measured by pulling the measuring tape.

[0014] Optionally, the measuring tape includes a mounting shaft fixed in the mounting groove, a mounting sleeve sleeved on the mounting shaft, a coil spring fixed between the mounting shaft and the mounting sleeve, and a meter stick with one end fixed to the mounting sleeve, the meter stick being wound around the mounting sleeve.

[0015] By adopting the above technical solution, when the measuring tape is pulled, the free end of the measuring tape can be pulled out from the mounting cylinder, which in turn rotates the mounting cylinder, causing the coil spring to retract. After the measurement is completed, when the force applied to the measuring tape is released, the measuring tape can automatically retract under the action of the coil spring, ensuring that when the first positioning plate is fixed in position on the flatbed sewing machine, the distance between the needle of the flatbed sewing machine and the first positioning plate is the slit length of the hem of the shirt to be processed.

[0016] Optionally, the first plate has a fixing groove on the side away from the second plate for the mounting shaft to be inserted. There are two fixing grooves, which are located on opposite sides of the mounting groove.

[0017] By adopting the above technical solution, the position of the mounting shaft on the first plate can be fixed by embedding the mounting shaft into the fixing groove.

[0018] Optionally, the mounting groove includes a guide groove formed on the surface of the first plate and a clamping groove formed at the bottom of the guide groove.

[0019] By adopting the above technical solution, when the mounting shaft is embedded in the fixing groove, the mounting shaft can be slid in from the guide groove and then slid into the clamping groove, and the mounting shaft is fixed in the clamping groove, thereby fixing the position of the mounting shaft.

[0020] Optionally, a second positioning plate is slidably connected to one side of the first plate, and a second positioning element for fixing the position of the second positioning plate on the first plate is detachably connected to the first plate.

[0021] By adopting the above technical solution, the second positioning plate can fix the width during sewing and ensure the straightness of the sewing thread. The second positioning component can fix the position of the second positioning plate on the first plate.

[0022] Optionally, the second positioning plate includes a fourth plate slidably connected to one side of the first plate and a fifth plate vertically fixed to the fourth plate on the side away from the first plate, and a groove is provided on one side of the first plate for the fourth plate to be inserted and slid.

[0023] By adopting the above technical solution, the position of the fourth plate can be fixed by making the fifth plate flush with the side wall of the flatbed sewing machine, and the distance between the fourth plate and the needle of the flatbed sewing machine can be adjusted by sliding the fourth plate in the groove, thereby adjusting the distance between the sewing thread and the shirt.

[0024] Optionally, one side of the first plate is provided with a sliding groove communicating with the sliding groove, and the second positioning member includes a locking bolt slidably connected in the sliding groove, the locking bolt being threadedly connected to the fourth plate.

[0025] By adopting the above technical solution, when the position of the fourth plate in the slide groove is adjusted, the locking bolt will slide in the slide groove accordingly. When it is necessary to fix the position of the fourth plate, simply tighten the locking bolt to fix the position of the fourth plate on the first plate.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. This application sets a first positioning plate, which can serve as an identifier. When sewing each shirt, the hem of the shirt is placed against the first positioning plate and then sewn by a flatbed sewing machine, so that the slit length of the shirt hem can be fixed.

[0028] 2. The setting of the measuring tape allows the distance between the first positioning plate and the needle of the flatbed sewing machine to be measured directly when adjusting the position of the first positioning plate, which facilitates the adjustment of the first positioning plate;

[0029] 3. The second positioning plate allows for positioning of the seam length from the shirt, making it easier to keep the seam length flat. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this application.

[0031] Figure 2 This is a structural diagram from another perspective of this application.

[0032] Figure 3 This is a diagram to illustrate the structure of a measuring tape.

[0033] Figure 4 This is a schematic diagram to illustrate the structure of the fixed groove.

[0034] Explanation of reference numerals in the attached drawings: 1. First positioning plate; 11. First plate; 111. Mounting groove; 112. Fixing groove; 1121. Guide groove; 1122. Clamping groove; 12. Second plate; 13. Third plate; 14. Sliding groove; 15. Sliding groove; 2. First positioning component; 21. Abutment plate; 22. Rotating rod; 23. Handle; 3. Measuring component; 31. Measuring tape; 311. Mounting shaft; 312. Mounting cylinder; 313. Coil spring; 314. Meter stick; 4. Second positioning plate; 41. Fourth plate; 42. Fifth plate; 5. Second positioning component; 51. Locking bolt. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0036] This application discloses a shirt hem slit positioning device for a flatbed sewing machine. (Refer to...) Figure 1 The shirt hem slit positioning device for a flatbed sewing machine includes a first positioning plate 1 detachably connected to the flatbed sewing machine, a first positioning component 2 for fixing the position of the first positioning plate 1 on the flatbed sewing machine, and a measuring component 3 for measuring the length from the first positioning plate 1 to the needle of the flatbed sewing machine. The measuring component 3 measures the distance between the first positioning plate 1 and the needle, thereby fixing the position of the first positioning plate 1 on the flatbed sewing machine via the first positioning component 2. This ensures that each time the shirt hem is slit, the shirt hem only needs to be placed against the first positioning plate 1, and then the shirt is sewn by the needle of the flatbed sewing machine, leaving the required slit length.

[0037] The first positioning plate 1 includes a first plate 11 slidably connected to a flatbed sewing machine, a second plate 12 vertically fixed to one end of the first plate 11, and a third plate 13 vertically fixed to the other end of the first plate 11. The second plate 12 and the second plate 13 are located on the same side of the first plate 11. The first positioning member 2 is installed on the second plate 12 or the third plate 13. This application will describe the first positioning member 2 installed on the second plate 12 as an example.

[0038] Reference Figure 2The first positioning plate 1 includes an abutment plate 21 slidably connected to the side of the second plate 12 facing the third plate 13, a rotating rod 22 rotatably connected to the side of the abutment plate 21 facing the second plate 12, and a handle 23 fixedly connected to the side of the rotating rod 22 away from the abutment plate 21. The rotating rod 22 passes through the second plate 12 and is threadedly connected to the second plate 12. The abutment plate 21 and the handle 23 are located on opposite sides of the second plate 12. When it is necessary to fix the position of the first positioning plate 1 on the flatbed sewing machine by the first positioning member 2, simply turn the handle 23 to drive the rotating rod 22 to rotate. Since the rotating rod 22 is threadedly connected to the second plate 12, the rotating rod 22 will drive the abutment plate 21 to move closer to or away from the second plate 12, so that the abutment plate 21 abuts against one end of the flatbed sewing machine, thereby fixing the position of the first positioning plate 1.

[0039] Reference Figure 2 and Figure 3 A mounting groove 111 for mounting the measuring component 3 is provided on the side of the first plate 11 facing the needle of the flatbed sewing machine. The mounting groove 111 is connected to the side of the first plate 11 facing away from the second plate 12 and the third plate 13, which facilitates the installation and placement of the measuring component 3.

[0040] The measuring element 3 includes a measuring tape 31 installed in the mounting slot 111, so that the distance between the first positioning plate 1 and the needle of the flatbed sewing machine can be measured directly through the measuring tape 31.

[0041] Specifically, the measuring tape 31 includes a mounting shaft 311 fixed to the first plate 11, a mounting sleeve 312 sleeved on the mounting shaft 311, a coil spring 313 fixed between the mounting shaft 311 and the mounting sleeve 312, and a measuring tape 314 with one end fixed to the mounting sleeve 312 and the other end wound around the mounting sleeve 312. Normally, the measuring tape 314 is wound around the mounting sleeve 312. When it is necessary to adjust the position of the first plate 11 on the flatbed sewing machine, the free end of the measuring tape 314 is pulled out from the mounting sleeve 312 to measure the distance between the first plate 11 and the needle of the flatbed sewing machine. When the distance measured by the measuring tape 314 matches the length of the shirt to be split, the position of the first positioning plate 1 on the flatbed sewing machine is directly fixed by the first positioning member 2. During the process of pulling the free end of the measuring tape 314 out of the mounting cylinder 312, the mounting cylinder 312 also drives the coil spring 313 to rotate, causing the coil spring 313 to retract. When the measuring tape 314 is released, under the action of the spring spring 313 itself, the coil spring 313 returns to its original state and drives the mounting cylinder 312 to rotate in the opposite direction, so that the measuring tape 314 automatically winds back onto the mounting cylinder 312.

[0042] The first plate 11 is provided with a fixing groove 112 for mounting the mounting shaft 311, so as to fix the position of the mounting shaft 311 on the first plate 11.

[0043] Furthermore, there are two fixing grooves 112, which are located on both sides of the mounting groove 111 for the two ends of the mounting shaft 311 to be inserted.

[0044] Reference Figure 4 The fixing groove 112 is formed on the side of the first plate 11 opposite to the second plate 12 and the third plate 13. It includes a guide groove 1121 formed on the first plate 11 and a clamping groove 1122 formed at the bottom of the guide groove 1121. The width of the guide groove 1121 gradually decreases from the opening of the guide groove 1121 to the bottom of the guide groove 1121, which can guide the mounting shaft 311, so that the mounting shaft 311 can slide smoothly into the guide groove 1121 and smoothly slide from the guide groove 1121 into the clamping groove 1122. The clamping groove 1122 is generally circular and its diameter is the same as that of the mounting shaft 311. The size of the connection between the clamping groove 1122 and the guide groove 1121 is slightly smaller than the diameter of the mounting shaft 311, so that the mounting shaft 311 can slide through the opening of the clamping groove 1122 under the action of hard force and be fixed in the clamping groove 1122. When it is necessary to disassemble the mounting shaft 311, it can also be removed by force.

[0045] Reference Figure 1 In order to improve the sewing effect at the slit of the shirt, a second positioning plate 4 is also provided on the first plate 11 to fix the distance between the seam line and the edge of the shirt, so that the straightness of the seam line is consistent during sewing.

[0046] Reference Figure 1 and Figure 2 A groove 14 is provided on both opposite sides of the first plate 11 for the second positioning plate 4 to be inserted. One end of the second positioning plate 4 is inserted into the groove 14 and slidably connected to the first plate 11 through the groove 14. The second positioning plate 4 includes a fourth plate 41 slidably connected in the groove 14 and a fifth plate 42 vertically fixed to the end of the fourth plate 41 away from the first plate 11. At the same time, a second positioning member 5 is also provided on the first plate 11 to fix the position of the fourth plate 41 in the groove 14. In use, the fourth plate 41 can be slid in the groove 14 to adjust the distance between the fourth plate 41 and the needle of the flatbed sewing machine. After adjustment, the position of the fourth plate 41 on the first plate 11 is fixed by the second positioning member 5, so that a sewing space for sewing is formed between the side of the fourth plate 41 facing the needle of the flatbed sewing machine and the side of the first plate 11 facing the needle of the flatbed sewing machine.

[0047] Understandably, after the fourth plate 41 is fixed in position on the first plate 11 by the second positioning piece 5, the fifth plate 42 also abuts against one side of the flatbed sewing machine to ensure the stability of the fourth plate 41.

[0048] The first plate 11 has a sliding groove 15 on the side opposite to the second plate 12 and the third plate 13, which communicates with the sliding groove 14. The second positioning member 5 includes a locking bolt 51 that is slidably connected in the sliding groove 15 and is threadedly connected to the fourth plate 41. When it is necessary to adjust the position of the fourth plate 41 in the sliding groove 14, the locking bolt 51 also slides in the sliding groove 15. After the fourth plate 41 slides to the set position, the locking bolt 51 is tightened directly to fix the position of the fourth plate 41 in the sliding groove 14, thus completing the fixation of the position of the fourth plate 41.

[0049] The implementation principle of the shirt hem slit positioning device for a flatbed sewing machine according to this application embodiment is as follows: When it is necessary to sew the shirt hem slit, firstly, adjust the position of the first positioning plate 1 on the flatbed sewing machine according to the required slit length, and pull the measuring tape 31 to measure the distance between the first plate 11 and the needle of the flatbed sewing machine. When the measured distance between the first plate 11 and the needle of the flatbed sewing machine is consistent with the distance of the shirt to be slit, turn the handle 23 to drive the abutment plate 21 closer to the flatbed sewing machine until the abutment plate 21 abuts against the flatbed sewing machine to fix the position of the first positioning plate 1 on the flatbed sewing machine. Then, adjust the second positioning plate 4 to slide in the slide groove 14 according to the width of the shirt edge to be overlocked, so that the distance between the second positioning plate 4 and the needle of the flatbed sewing machine is consistent with the distance of the shirt edge to be overlocked. Tighten the locking bolt 51 to fix the position of the second positioning plate 4, thus completing the fixation of the second positioning plate 4. When the staff is securing the hem of the shirt, they simply place the shirt in the sewing space formed by the first positioning plate 1 and the second positioning plate 4, ensuring that the hem of the shirt abuts against the first positioning plate 1 and the side edge of the shirt abuts against the second positioning plate 4. This allows the shirt to be sewn together, ensuring that the slit length meets the requirements while also maintaining a consistent edge width. This makes the operation more convenient and simple, and the resulting shirt is more aesthetically pleasing.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A shirt hem slit positioning device for a flatbed sewing machine, characterized in that: It includes a first positioning plate (1) detachably connected to a flatbed sewing machine, a first positioning element (2) for fixing the position of the first positioning plate (1) on the flatbed sewing machine, and a measuring element (3) for measuring the length of the first positioning plate (1) to the needle of the flatbed sewing machine.

2. The shirt hem slit positioning device for a flatbed sewing machine according to claim 1, characterized in that: The first positioning plate (1) includes a first plate (11), a second plate (12) vertically fixed to one end of the first plate (11), and a third plate (13) vertically fixed to the other end of the first plate (11). The second plate (12) and the third plate (13) are located on the same side of the first plate (11), and the first positioning member (2) is installed on the second plate (12).

3. The shirt hem slit positioning device for a flatbed sewing machine according to claim 2, characterized in that: The first positioning member (2) includes an abutment plate (21) slidably connected to the side of the second plate (12) facing the third plate (13) and a rotating rod (22) rotatably connected to the abutment plate (21), the rotating rod (22) being threadedly connected to the second plate (12).

4. The shirt hem slit positioning device for a flatbed sewing machine according to claim 2, characterized in that: The first plate (11) has a mounting groove (111) on one side for mounting the measuring element (3), the mounting groove (111) is connected to the side of the first plate (11) away from the second plate (12), and the measuring element (3) includes a measuring tape (31).

5. The shirt hem slit positioning device for a flatbed sewing machine according to claim 4, characterized in that: The measuring tape (31) includes a mounting shaft (311) fixed in the mounting groove (111), a mounting sleeve (312) sleeved on the mounting shaft (311), a coil spring (313) fixed between the mounting shaft (311) and the mounting sleeve (312), and a meter stick (314) with one end fixed to the mounting sleeve (312), the other end of the meter stick (314) being wound around the mounting sleeve (312).

6. The shirt hem slit positioning device for a flatbed sewing machine according to claim 5, characterized in that: The first plate (11) has a fixing groove (112) on the side away from the second plate (12) for the mounting shaft (311) to be inserted. There are two fixing grooves (112), which are located on opposite sides of the mounting groove (111).

7. The shirt hem slit positioning device for a flatbed sewing machine according to claim 6, characterized in that: The mounting groove (111) includes a guide groove (1121) formed on the surface of the first plate (11) and a clamping groove (1122) formed at the bottom of the guide groove (1121).

8. The shirt hem slit positioning device for a flatbed sewing machine according to claim 2, characterized in that: A second positioning plate (4) is slidably connected to one side of the first plate (11), and a second positioning member (5) for fixing the position of the second positioning plate (4) on the first plate (11) is detachably connected to the first plate (11).

9. The shirt hem slit positioning device for a flatbed sewing machine according to claim 8, characterized in that: The second positioning plate (4) includes a fourth plate (41) slidably connected to one side of the first plate (11) and a fifth plate (42) vertically fixed to one end of the fourth plate (41) away from the first plate (11). A groove (14) is provided on one side of the first plate (11) for the fourth plate (41) to be inserted and slid.

10. The shirt hem slit positioning device for a flatbed sewing machine according to claim 9, characterized in that: The first plate (11) has a sliding groove (15) on one side that communicates with the sliding groove (14), and the second positioning member (5) includes a locking bolt (51) that is slidably connected in the sliding groove (15), and the locking bolt (51) is threadedly connected to the fourth plate (41).

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