A template machine with an automatic adsorption function

Abstract

The present invention belongs to the field of sewing template machines, and particularly relates to a template machine with an automatic adsorption function. It includes a platform, a template mechanism, a guide base, a motor A, a sewing head, and a sewing needle mechanism. Among them, on the platform, there is a template mechanism that horizontally moves to clamp two superposed fabrics and is composed of an upper template and a lower template; in the guide base fixed above the platform, there is a sewing head driven by the motor A that moves vertically. The lower end of the sewing head in the present invention has two sewing needles that move crosswise, and the sewing threads on the two sewing needles are interlaced with each other to complete the sewing of two fabrics without the lower thread in traditional sewing, simplifying the sewing structure.

Description

Technical Field

[0001] The invention belongs to the field of sewing template machines, and in particular relates to a template machine with an automatic adsorption function. Background Art

[0002] A template machine is a device that presses the edge of the sewing material during the sewing process, allowing the sewing area to leak out of the groove, making it easier for the sewing needle of the automatic sewing machine to insert into the groove for sewing. The template machine can achieve efficient sewing of fabrics by the sewing machine.

[0003] Sewing generally has an upper thread and a lower thread. The upper thread is driven by the sewing needle and inserted under the fabric. The upper thread entering under the fabric is captured by the lower thread. After the upper thread and the lower thread are connected, the sewing needle is pulled out and drives the upper thread to be inserted into the next sewing hole again to connect with the lower thread.

[0004] At present, the lower template in the template also needs to have corresponding sewing grooves like the upper template due to the influence of the bottom thread, and the platform that drives the template to move also needs to be grooved so that the bottom thread can pass through the bottom side and connect with the inserted upper thread. These requirements limit the movement of the platform and the design of the template.

[0005] The present invention designs a template machine with automatic adsorption function to solve the above problems. Summary of the Invention

[0006] In order to solve the above-mentioned defects in the prior art, the present invention discloses a template machine with automatic adsorption function, which is achieved by adopting the following technical solutions.

[0007] A template machine with an automatic adsorption function comprises a platform, a template mechanism, a guide seat, a motor A, a sewing machine head, and a sewing needle mechanism, wherein the template mechanism composed of an upper template and a lower template moves horizontally on the platform to clamp two overlapping cloths; the sewing machine head driven by the motor A moves vertically in the guide seat fixed above the platform; the two inclined seats at the lower end of the sewing machine head are each equipped with a sewing needle mechanism with sewing thread, and have a structure that allows the sewing areas of the two pieces of cloth to be suspended from the sewing groove on the upper template; the two sewing needle mechanisms move crosswise.

[0008] The sewing needle mechanism includes a round rod, a slide bar A, a motor B, a motor C, a sewing needle, a motor D, a slide bar B, and a constraint bar, wherein the slide bar A driven by the motor B slides axially in the hollow round rod that slides axially in the inclined seat along the inclined direction under the drive of the motor C; the lower end of the round rod is rotated to cooperate with the coaxial hollow sewing needle driven by the motor D, and the sewing needle has a coaxial slide bar B that rotates with the slide bar A axially sliding; a constraint bar with a line slot switch swings in the swing slot at the thread slot at the lower end of the sewing needle and is transmission-connected to the slide bar B; the sewing needle has a structure that allows the sewing thread in the sewing machine head to form a connecting buckle under the fabric after it is inserted under the fabric.

[0009] As a further improvement of the present technology, the guide seat is installed above the platform through a fixed seat; the guide seat is rotatably fitted with two vertical screws that are threadedly fitted with the sewing machine head housing and are transmission-connected to the output shaft of the motor A on the guide seat; both screws are equipped with pulleys A, and the two pulleys A are transmission-connected by a synchronous belt A.

[0010] As a further improvement of this technology, a rack is installed on the round rod, which meshes with the gear A in the corresponding bevel seat. The pulley B on the shaft where the gear A is located is connected to the pulley C on the output shaft of the motor C through the synchronous belt B.

[0011] As a further improvement of the present technology, a connecting rod A is hinged on the fixed rod at the upper end of the sliding rod A, and the end of the connecting rod A is hinged to the crank on the output shaft of the motor B on the round rod.

[0012] As a further improvement of this technology, a gear ring is installed on the sewing needle, which meshes with the gear B on the output shaft of the motor D on the round rod; the upper end of the slide bar B rotates with the rotating sleeve at the lower end of the slide bar A.

[0013] As a further improvement of the present technology, the lower end of the sliding rod B is hinged to a connecting rod B, and the end of the connecting rod B is hinged to one end of the constraint rod.

[0014] As a further improvement of the present technology, the sewing needle is equipped with a guide ring which guides the sewing thread in the corresponding inclined seat along the axis of the sewing needle to the spiral wire sleeve at the needle head with the axis of the sewing needle as the spiral axis; the wire sleeve creates a gap between the sewing thread passing through it and the sewing needle.

[0015] As a further improvement of the present technology, the lower end of the sewing machine head is equipped with two air cavities that cooperate with the sewing grooves on the upper template and absorb the sewing area of the fabric upward from both sides of the sewing needle. The air cavities are connected to the air pump.

[0016] As a further improvement of the present technology, protrusions are evenly distributed on the lower template to create a space between the cloth and the lower template.

[0017] As a further improvement of the present technology, the lower end of the air cavity is provided with an air net.

[0018] Compared to traditional template sewing machines, the present invention features two cross-moving needles at the bottom of the sewing machine head. The sewing threads on the two needles intersect to complete the sewing of two pieces of fabric, eliminating the need for a traditional lower thread. This simplifies the sewing structure. Furthermore, the two air chambers at the bottom of the sewing machine head upwardly attract the two overlapping pieces of fabric, leaving the sewing area of the two pieces of fabric suspended in the air. This allows the two sewing threads of the two needles to connect with each other under the fabric, eliminating the need for a sewing groove on the platform. This simplifies the structure of the sewing equipment and does not affect the horizontal movement of the template mechanism on the platform.

[0019] The structure of the present invention is simple and has good usage effects. Description of the Drawings

[0020] Figure 1 is the overall schematic diagram of the present invention.

[0021] Figure 2 are the cross-sectional schematic diagrams of the present invention from two perspectives.

[0022] Figure 3 is the cross-sectional schematic diagram of the driving structure of the sewing machine.

[0023] Figure 4 is the sewing schematic diagram of the present invention.

[0024] Figure 5 are the cross-sectional schematic diagrams of the cooperation of the air chamber, the fabric and the template mechanism from two perspectives.

[0025] Figure 6 are the schematic diagrams of the upper template and the lower template.

[0026] Figure 7 is the schematic diagram of the cooperation of two sewing needle mechanisms.

[0027] Figure 8 is the cross-sectional schematic diagram of the cooperation between the sewing needle mechanism and the upper inclined seat of the sewing machine.

[0028] Figure 9 is the schematic diagram of the sewing machine mechanism.

[0029] Figure 10 are the schematic diagrams of the upper end of the sewing machine mechanism from two perspectives.

[0030] Figure 11 is the cross-sectional schematic diagram of the middle part of the sewing needle mechanism.

[0031] Figure 12 is the cross-sectional schematic diagram of the lower end of the sewing needle mechanism.

[0032] Figure 13 is the schematic diagram of the structure at the lower end of the sewing needle.

[0033] Names of reference numerals in the figure: 1. Platform; 2. Template mechanism; 3. Lower template; 4. Protrusion; 5. Upper template; 6. Sewing groove; 7. Cloth; 8. Fixed seat; 9. Guide seat; 10. Motor A; 11. Screw rod; 12. Synchronous belt A; 13. Belt pulley A; 14. Sewing machine head; 15. Inclined seat; 16. Sewing needle mechanism; 17. Round rod; 18. Rack; 19. Slide bar A; 20. Fixed rod; 21. Connecting rod A; 22. Crank; 23. Motor B; 24. Gear A; 25. Belt pulley B; 26. Synchronous belt B; 27. Belt pulley C; 28. Motor C; 29. Sewing needle; 30. Thread groove; 31. Swing groove; 32. Wire guide sleeve; 33. Tooth ring; 34. Gear B; 35. Motor D; 36. Rotating sleeve; 37. Slide bar B; 38. Connecting rod B; 40. Constraint rod; 41. Sewing thread; 42. Air cavity; 43. Air net; 44. Guide ring. Detailed implementation mode

[0034] The attached drawings are all schematic diagrams of the implementation of the present invention for facilitating the understanding of the structural operation principle. The specific product structure and proportional dimensions can be determined according to the use environment in combination with conventional technologies.

[0035] As Figure 1 、 2 shown, it includes a platform 1, a template mechanism 2, a guide seat 9, a motor A 10, a sewing machine head 14, and a sewing needle mechanism 16. Among them, as Figure 4 、 5 shown, on the platform 1, there is a template mechanism 2 composed of an upper template 5 and a lower template 3 that horizontally moves to clamp two pieces of cloth 7 stacked together; as Figure 1 、 2 、3 shown, inside the guide seat 9 fixed above the platform 1, there is a sewing machine head 14 that vertically moves and is driven by a motor A 10; as Figure 5 、 6 、7、8 shown, in each of the two inclined seats 15 at the lower end of the sewing machine head 14, there is installed a sewing needle mechanism 16 with a sewing thread 41 and has a structure that suspends the sewing areas of the two pieces of cloth 7 from the sewing groove 6 on the upper template 5; as Figure 4 、 7 shown, the two sewing needle mechanisms 16 move crosswise.

[0036] As Figure 9 shown, the sewing needle mechanism 16 includes a round rod 17, a slide bar A 19, a motor B 23, a motor C 28, a sewing needle 29, a motor D 35, a slide bar B 37, and a constraint rod 40. Among them, as Figure 8 、 9 、10 shown, inside the hollow round rod 17 that axially slides in the inclined seat 15 along the inclined direction under the drive of the motor C 28, there is a slide bar A 19 that is driven by a motor B 23 and axially slides; as Figure 11 、 12As shown, the lower end of the round rod 17 is rotatably matched with a coaxial hollow sewing needle 29 driven by a motor D35, and the sewing needle 29 axially slides with a coaxial slide bar B37 rotatably matched with the slide bar A19; Figure 9 、 12 As shown in FIG. 13 , a restraining rod 40 is provided in the swing groove 31 at the lower end of the sewing needle 29 and is connected to the line groove 30 switch and the slide bar B37; Figure 7 、 9 As shown in FIG. 12 , the sewing needle has a structure that enables the sewing thread 41 in the sewing machine head 14 to form a connecting buckle under the fabric 7 after the sewing needle is inserted under the fabric 7 .

[0037] like Figure 3 As shown, the guide seat 9 is installed above the platform 1 through the fixed seat 8; the guide seat 9 is rotatably equipped with two vertical screws 11 that are threadedly engaged with the outer shell of the sewing machine head 14 and are transmission-connected to the output shaft of the motor A10 on the guide seat 9; both screws 11 are equipped with pulleys A13, and the two pulleys A13 are transmission-connected by a synchronous belt A12.

[0038] like Figure 8 、 9 As shown, a rack 18 is installed on the round rod 17, and the rack 18 is engaged with the gear A24 in the corresponding inclined seat 15. The pulley B25 on the shaft where the gear A24 is located is connected to the pulley C27 on the output shaft of the motor C28 through a synchronous belt B26.

[0039] like Figure 10 As shown, a connecting rod A21 is hinged on the fixed rod 20 at the upper end of the sliding rod A19, and the end of the connecting rod A21 is hinged to the crank 22 on the output shaft of the motor B23 on the round rod 17.

[0040] like Figure 11 As shown, a gear ring 33 is installed on the sewing needle 29, and the gear ring 33 is engaged with the gear B34 on the output shaft of the motor D35 on the round rod 17; the upper end of the slide bar B37 rotates with the rotating sleeve 36 at the lower end of the slide bar A19.

[0041] like Figure 12 、 13 As shown, the lower end of the sliding rod B37 is hinged to a connecting rod B38, and the end of the connecting rod B38 is hinged to one end of the restraining rod 40.

[0042] like Figure 7 、 9 As shown in Figures 12 and 12, the sewing needle 29 is provided with a guide ring 44 which guides the sewing thread 41 in the corresponding inclined seat 15 along the axis of the sewing needle to the needle head of the sewing needle 29 and the spiral wire sleeve 32 with the axis of the sewing needle 29 as the spiral axis; the wire sleeve 32 creates a gap between the sewing thread 41 passing therethrough and the sewing needle 29.

[0043] likeFigure 1 、 2 As shown in FIG. 5 , the lower end of the sewing machine head 14 is provided with two air cavities 42 which cooperate with the sewing groove 6 on the upper template 5 and absorb the sewing area of the cloth 7 upward from both sides of the sewing needle. The air cavity 42 is connected to the air pump.

[0044] like Figure 4 、 5 As shown in FIG6 , the lower template 3 is evenly distributed with protrusions 4 that create space between the cloth 7 and the lower template 3 .

[0045] like Figure 5 As shown, the lower end of the air cavity 42 has an air net 43.

[0046] The working process of the present invention is as follows: in the initial state, both sewing needle mechanisms 16 are retracted into the corresponding inclined seats 15 to the limit state, and the two sewing needle mechanisms 16 and the two air cavities 42 are a certain distance away from the upper template 5 in the template mechanism 2. The restraining rod 40 in each sewing needle mechanism 16 is closed to the corresponding thread groove 30.

[0047] First, the sewing thread 41 led out of each inclined seat 15 passes through the corresponding guide ring 44 and the corresponding wire sleeve 32. Then, the two fabrics 7 to be sewn are installed between the upper template 5 and the lower template 3 of the template mechanism 2. The template mechanism 2 is driven to move on the platform 1 so that the sewing groove 6 of the upper template 5 is opposite to the two air cavities 42 at the lower end of the sewing machine head 14 and the sewing needle mechanism 16.

[0048] Starting motor A10 drives the sewing machine head 14 to move downward, so that the two air cavities 42 enter the sewing groove 6 and the lower end of the air cavity 42 is against the cloth 7. Starting the air pump generates negative pressure in the two air cavities 42. The two air cavities 42 adsorb the sewing area of the cloth 7 from both sides of the two sewing needle mechanisms 16. Starting motor A10 drives the sewing machine head 14 to move upward a certain amplitude, so that the two air cavities 42 lift the sewing area of the two layers of cloth 7, so that there is enough space under the sewing area of the two layers of cloth 7 to accommodate the needle heads of the sewing needles 29 in the two sewing needle mechanisms 16.

[0049] Then, the motor D35 in one sewing needle mechanism 16 is started to drive the corresponding sewing needle 29 to rotate a certain amplitude, so that the exit end of the sewing thread 41 on the sewing needle 29 is opposite the sewing needle 29 of the other sewing needle mechanism 16. Then, the motor C28 is started to drive the corresponding round rod 17 to drive the corresponding sewing needle 29 to be inserted obliquely into the double-layer fabric 7 to a certain depth, so that the sewing thread 41 on the sewing needle 29 forms a connection buckle at the wire sleeve 32.

[0050] Next, motor D35 in another sewing needle mechanism 16 is activated to rotate the corresponding sewing needle 29 a certain distance, causing the thread groove 30 on sewing needle 29 to face away from the adjacent sewing needle. Motor C28 is then activated to drive the corresponding rod 17, causing the corresponding sewing needle 29 to be inserted obliquely into the double-layer fabric 7 to a certain extent. After entering the double-layer fabric 7, sewing needle 29 obliquely inserts into the connecting buckle formed by the sewing thread 41 on the adjacent sewing needle mechanism 16. Motor B23 is then activated. Motor B23, via crank 22, connecting rod A21, fixed rod 20, and slide rod A19, drives the restraining rod 40 to open the thread groove 30. Motor C28 is then activated to drive the corresponding rod 17 to retract the sewing needle 29 slightly, causing it to disengage from the adjacent sewing needle 29. As sewing needle 29 disengages from the adjacent sewing needle 29, the connecting buckle formed by the sewing thread 41 on the adjacent sewing needle 29 is nested on sewing needle 29 and inserted into the thread groove 30. After the two sewing needles 29 are separated, the motor B23 is started to drive the restraining rod 40 to close the thread groove 30 so that the sewing thread 41 is restrained in the thread groove 30.

[0051] Then, the motor C28 corresponding to the sewing needle 29 without the sewing thread 41 in the thread groove 30 is started. The motor C28 drives the sewing needle 29 to retract a certain amplitude without leaving the two layers of fabric 7 and the motor D35 is started to drive the sewing needle 29 to rotate 90 degrees, so that the thread groove 30 on the sewing needle 29 is opposite to the adjacent sewing needle 29. Next, the motor C28 in the sewing needle mechanism 16 with the sewing thread 41 in the thread groove 30 is started. The motor C28 drives the sewing needle 29 to move obliquely downward for a certain amplitude and the motor D35 is started to drive the sewing needle 29 to rotate 90 degrees, so that the sewing thread 41 on the sewing needle 29 is opposite to the adjacent sewing needle 29 at the end where the sewing thread 41 passes through the wire sleeve 32.

[0052] Next, the motor C28 in the sewing needle mechanism 16 without the sewing thread 41 in the thread groove 30 is started to drive the sewing needle 29 to be inserted obliquely downward into the connecting buckle formed by the sewing thread 41 on the adjacent sewing needle 29 at the wire sleeve 32. The motor B23 is started to drive the restraining rod 40 to open the corresponding thread groove 30. The motor C28 is started to drive the sewing needle 29 to move obliquely upward by a certain amplitude, so that the connecting buckle is nested on the sewing needle 29 and enters the thread groove 30. After the sewing thread 41 enters the thread groove 30, the motor B23 is started to drive the restraining rod 40 to close the thread groove 30 to complete the restraint of the sewing thread 41.

[0053] Then, motors C28 in the two sewing needle mechanisms 16 are started simultaneously. The two motors C28 drive the corresponding sewing needles 29 to retract and disengage from the double-layer fabric 7 respectively. Both sewing needles 29 drive the sewing threads 41 on each other to pass upward through the sewing holes and pull upward for a certain length. Then, the template mechanism 2 is driven to move a certain amplitude along the length direction of the sewing groove 6. The motors C28 in the two sewing needle mechanisms 16 are started to drive the two sewing needles 29 to insert into new positions of the double-layer fabric 7. When the connecting buckles of the sewing threads 41 driven by the sewing needles 29 just insert into the fabric 7, the two motors B23 in the two sewing needle mechanisms 16 are started to drive the two restraint rods 40 to open the two wire grooves 30. The two motors C28 in the two sewing needle mechanisms 16 continue to drive the two sewing needles 29 to move downward for a certain amplitude, so that the two sewing threads 41 of the other party driven by them disengage from the wire grooves 30 and are nested on the sewing needles 29 during the downward insertion of the sewing needles 29.

[0054] Next, according to the above process, the two sewing needle mechanisms 16 restrain the sewing threads 41 of the other party in the wire grooves 30 again and retract upward to disengage from the fabric 7. After the sewing needles 29 disengage from the fabric 7, each sewing needle 29 passes the sewing thread 41 hooked by itself through the sewing thread that was previously nested in the wire groove 30 on it and is now nested on the sewing needle, and moves downward along the direction of the sewing groove 6 to the next sewing position. In this way, through the cross movement of the two sewing needle mechanisms 16 and the movement of the template mechanism 2 continuously, the double-layer fabric 7 is sewn with double threads within the range of the sewing groove 6. There is only the upper thread and no bobbin thread in the whole process, which simplifies the sewing structure. The statement of "each sewing needle 29 passes the sewing thread 41 hooked by itself through the sewing thread that was previously nested in the wire groove 30 on it and is now nested on the sewing needle" can ensure that the sewing thread that was previously nested in the wire groove 30 on it and is now nested on the sewing needle will not disengage from the fabric, but will be tightened by the sewing thread 41 hooked now.

[0055] In summary, the beneficial effects of the present invention are as follows: At the lower end of the sewing head 14 in the present invention, there are two sewing needles 29 that move crosswise. The sewing threads 41 on the two sewing needles 29 are interspersed with each other to complete the sewing of the two pieces of fabric 7 without the lower thread in traditional sewing, which simplifies the sewing structure. At the same time, the upward adsorption of the two air cavities 42 at the lower end of the sewing head 14 on the two pieces of fabric 7 stacked together makes the sewing areas of the two pieces of fabric 7 suspended, so that there is a connecting space below the fabric 7 for the two sewing threads 41 of the two sewing needles. Therefore, there is no need to open a sewing groove 6 on the platform 1, which simplifies the structure of the sewing equipment and does not affect the horizontal movement of the template mechanism 2 on the platform 1.

Claims

1. A template machine with an automatic adsorption function, characterized in that: It includes a platform, a template mechanism, a guide seat, a motor A, a sewing machine head, and a sewing needle mechanism. The template mechanism composed of an upper template and a lower template moves horizontally on the platform to clamp two overlapping fabrics. The sewing machine head driven by the motor A moves vertically in the guide seat fixed above the platform. Sewing needle mechanisms with sewing threads are installed in the two oblique seats at the lower end of the sewing machine head. The sewing areas of the two fabrics are suspended from the sewing groove on the upper template. The two sewing needle mechanisms move crosswise. The sewing needle mechanism includes a round rod, a slide bar A, a motor B, a motor C, a sewing needle, a motor D, a slide bar B, and a restraining rod, wherein the slide bar A driven by the motor B slides axially in the hollow round rod in an inclined seat in an axial direction under the drive of the motor C; a coaxial hollow sewing needle driven by the motor D is rotatably engaged at the lower end of the round rod, and a coaxial slide bar B rotatably engaged with the slide bar A slides axially in the sewing needle; a restraining rod with a line slot switch swings in a swing groove at the thread slot at the lower end of the sewing needle and is transmission-connected to the slide bar B; the sewing needle has a structure that allows the sewing thread in the sewing machine head to form a connecting buckle under the fabric after the sewing needle is inserted under the fabric; The guide seat is mounted above the platform via a fixed seat; the guide seat is rotatably engaged with two vertical screws that are threadedly engaged with the sewing machine head housing and are transmission-connected to the output shaft of the motor A on the guide seat; pulleys A are mounted on both screws, and the two pulleys A are transmission-connected via a synchronous belt A; A rack is mounted on the round rod, the rack meshes with the gear A in the corresponding bevel seat, and the pulley B on the shaft where the gear A is located is connected to the pulley C on the output shaft of the motor C through a synchronous belt B; A connecting rod A is hinged on the fixed rod at the upper end of the sliding rod A, and the end of the connecting rod A is hinged to the crank on the output shaft of the motor B on the round rod; The sewing needle is provided with a guide ring for guiding the sewing thread in the corresponding oblique seat along the axis of the sewing needle to the spiral guide sleeve at the needle head with the axis of the sewing needle as the spiral axis; the guide sleeve creates a gap between the sewing thread passing through it and the sewing needle; The lower end of the sewing machine head is equipped with two air cavities that cooperate with the sewing grooves on the upper template and absorb the sewing area of the fabric upward from both sides of the sewing needle. The air cavities are connected to the air pump; The lower template is evenly distributed with protrusions that create space between the fabric and the lower template; The lower end of the air cavity is provided with an air net.

2. The template machine with an automatic adsorption function according to claim 1, characterized in that: The sewing needle is equipped with a gear ring, which meshes with the gear B on the output shaft of the motor D on the round rod; the upper end of the slide bar B rotates with the rotating sleeve at the lower end of the slide bar A.

3. The template machine with an automatic adsorption function according to claim 1, characterized in that: The lower end of the sliding rod B is hinged with a connecting rod B, and the end of the connecting rod B is hinged to one end of the restraining rod.

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