Safety device of automatic button sewing machine

Abstract

The utility model provides an automatic button sewing machine safety device which comprises a linear electric cylinder, an inclined rod and an abutting ring, the inclined rod is arranged on an output shaft of the linear electric cylinder, the abutting ring is arranged at the bottom of the inclined rod, the top of the inclined rod is further provided with a trigger sliding seat, the trigger sliding seat extends towards the upper end of the linear electric cylinder to form a mounting support, and the mounting support is provided with a travel switch. A trigger block is arranged at the side end of the linear electric cylinder and used for triggering the travel switch, and through cooperation between the travel switch and the trigger block, when the hand is placed in the travel path of the abutting ring, the linear electric cylinder cannot drive the abutting ring to move to the lowest side, the trigger block does not touch the travel switch, and the button sewing machine does not conduct punching and button sewing. And the safety of the button sewing machine is ensured.

Description

Technical Field

[0001] The utility model relates to a button sewing machine, and particularly to a safety device for an automatic button sewing machine. Background Art

[0002] At present, a Chinese patent with the publication number CN217438410U discloses a fabric button sewing machine, which includes a workbench and a support table. A first cylinder is arranged above the workbench, a punching head is arranged at the bottom of the first cylinder, and a vertical cylinder is also arranged. An inclined rod and an abutting ring are arranged at the output end of the vertical cylinder, and the abutting ring is used to circle the position to be punched and press the fabric tightly on the support table.

[0003] The above patent still has deficiencies. To ensure the punching ability, the bottom of the punching head is usually pointed. Button sewing is a repetitive mechanical operation. When the operator is prone to laxity after punching for a long time, problems such as pinching hands and being injured by the punching head may occur, which is relatively dangerous. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a safety device for an automatic button sewing machine, which has the function of preventing hand pinching.

[0005] To solve the above technical problems, the technical solution of the utility model is: a safety device for an automatic button sewing machine, which includes a linear electric cylinder, an inclined rod and an abutting ring. The inclined rod is arranged on the output shaft of the linear electric cylinder, and the abutting ring is arranged at the bottom of the inclined rod. A trigger sliding seat is also arranged at the top of the inclined rod. The trigger sliding seat extends towards the upper end of the linear electric cylinder with a mounting bracket. A travel switch is arranged on the mounting bracket. A trigger block is arranged at the side end of the linear electric cylinder. The trigger block is used to trigger the travel switch, and when the travel switch is triggered, it drives the button sewing machine to perform hole opening and button sewing.

[0006] Through the above technical means, through the cooperation between the travel switch and the trigger block, when the hand is placed in the travel path of the abutting ring, the linear electric cylinder cannot drive the abutting ring to move to the lowest side, and the trigger block cannot touch the travel switch, thereby ensuring that the button sewing machine will not perform punching and button sewing, and ensuring the safety during button sewing.

[0007] Preferably, a slide rail is arranged at the side end of the linear electric cylinder, a slider is arranged on the mounting bracket, the slider is slidably matched with the slide rail, the travel switch is arranged on the slider, and the trigger block is arranged at the side end of the slide rail.

[0008] Through the above technical means, the movement accuracy of the inclined rod and the abutting ring is increased through the slide rail, and at the same time, the movement accuracy of the travel switch is increased, reducing the error between the travel switch and the trigger block.

[0009] Preferably, a long oval hole is formed in the slide rail, and a fixed angle iron is further arranged on the trigger block. The fixed angle iron fixes the trigger block and the slide rail through bolts.

[0010] By the above technical means, through the cooperation between the long oval hole and the fixed angle iron, the position of the trigger block can be adjusted, so as to conveniently adjust the safe position of the button sewing machine for punching and button sewing, and at the same time enable the button sewing machine to adapt to relatively thick leather materials.

[0011] Preferably, a trigger sliding shaft is further arranged on the output shaft of the linear electric cylinder. A sliding hole is formed in the trigger sliding seat. The trigger sliding shaft slides in the sliding hole. A micro switch is arranged at the bottom of the sliding hole. When the trigger sliding shaft abuts against the micro switch, the linear electric cylinder stops pressing down.

[0012] By the above technical means, the trigger sliding shaft and the micro switch are arranged, and the movement of the linear electric cylinder is controlled through the micro hole switch, so that while preventing the stamping from pinching hands, the contact ring is prevented from hurting hands, and the safety of the equipment is further increased.

[0013] Preferably, a screw rod is arranged at the top of the trigger sliding shaft. A threaded hole is formed in the output shaft of the linear electric cylinder. The screw rod is fixedly connected with the threaded hole in a threaded manner. A trigger rod is further arranged at the bottom of the trigger sliding shaft. A spring is sleeved on the trigger rod.

[0014] By the above technical means, through the cooperation between the screw rod and the threaded hole, the installation of the trigger sliding shaft is more convenient. By sleeving a spring on the trigger rod, the possibility of accidental touch of the micro switch is reduced.

[0015] Preferably, the trigger sliding seat includes a base block and a cover plate. The cover plate is fixed to the base block through screws. The micro switch is arranged on the cover plate. Wire grooves are further formed in the base block and the cover plate.

[0016] By the above technical means, by arranging the cover plate, the installation of the trigger sliding shaft is facilitated. By forming the guiding groove, the wiring of the micro switch is facilitated.

[0017] Preferably, a protective shell is further arranged outside the linear electric cylinder. The protective shell is fixed to the side end of the button sewing machine. An inclined support plate is arranged between the installation bracket and the trigger sliding seat.

[0018] By the above technical means, by arranging the inclined support plate, the rigidity between the installation bracket and the trigger sliding seat is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the embodiment;

[0020] Figure 2 is Figure 1 a schematic diagram of part A of

[0021] Figure 3 Partial sectional view of the embodiment.

[0022] Reference numerals: 1, protective housing; 2, linear electric cylinder; 3, inclined rod; 4, abutting ring; 5, trigger sliding seat; 6, mounting bracket; 7, travel switch; 8, trigger block; 9, slide rail; 10, slider; 11, long waist hole; 12, fixed angle iron; 13, trigger sliding shaft; 14, sliding hole; 15, microswitch; 16, screw; 17, trigger rod; 18, spring; 19, base block; 20, cover plate; 21, wire groove; 90, button sewing machine. Specific embodiments

[0023] The following further details the specific embodiments of the present invention in conjunction with the accompanying drawings, so that the technical solutions of the present invention are easier to understand and master.

[0024] An automatic button sewing machine safety device includes a protective housing 1, a linear electric cylinder 2, an inclined rod 3 and an abutting ring 4. The linear electric cylinder 2 is arranged in the protective housing 1. A trigger sliding seat 5 is further arranged at the top of the inclined rod 3. The trigger sliding seat 5 is arranged on the output shaft of the linear electric cylinder 2. The abutting ring 4 is arranged at the bottom of the inclined rod 3. The trigger sliding seat 5 extends towards the upper end of the linear electric cylinder 2 with a mounting bracket 6. The mounting bracket 6 is arranged at the side end of the linear electric cylinder 2. A travel switch 7 is arranged on the mounting bracket 6. A trigger block 8 is arranged at the side end of the linear electric cylinder 2. When the travel switch 7 is not triggered, the button sewing machine 90 does not punch holes and sew buttons. The trigger block 8 is used to trigger the travel switch 7. When the linear motor drives the abutting ring 4 to press on the fabric, at this time, the position of the travel switch 7 is the position where the trigger block 8 needs to be installed. When the hand is placed in the travel path of the abutting ring 4, the linear electric cylinder 2 cannot drive the abutting ring 4 to move to the lowest side. At this time, the trigger block 8 does not touch the travel switch 7, so that the button sewing machine 90 does not punch holes and sew buttons, thus ensuring the safety of the button sewing machine 90.

[0025] A slide rail 9 is arranged at the side end of the linear electric cylinder 2. A slider 10 is arranged on the mounting bracket 6. The slider 10 is slidably matched with the slide rail 9 to ensure the accuracy of the movement of the travel switch 7 and reduce the error between the travel switch 7 and the trigger block 8. The travel switch 7 is arranged on the slider 10. The trigger block 8 is arranged at the side end of the slide rail 9. An inclined support plate is arranged between the mounting bracket 6 and the trigger sliding seat 5. The inclined support plate is used to protect the perpendicularity of the mounting bracket 6 and the trigger sliding seat 5, and prevent the mounting bracket 6 from deforming before installation resulting in poor perpendicularity, so that the slider 10 cannot slide on the slide rail 9.

[0026] A long waist hole 11 is opened on the slide rail 9. A fixed angle iron 12 is further arranged on the trigger block 8. The fixed angle iron 12 fixes the trigger block 8 and the slide rail 9 through bolts, so as to conveniently adjust the safe position of the button sewing machine 90 for punching holes and sewing buttons. When processing fabrics with different thicknesses, such as leather, sponge, etc., the trigger block 8 is moved to ensure that the travel switch 7 can touch the trigger block 8.

[0027] A trigger sliding shaft 13 is further arranged on the output shaft of the linear electric cylinder 2. A sliding hole 14 is formed in the trigger sliding seat 5. The trigger sliding shaft 13 slides in the sliding hole 14. A micro switch 15 is arranged at the bottom of the sliding hole 14. When the trigger sliding shaft 13 abuts against the micro switch 15, the linear electric cylinder 2 stops pressing down. A screw rod 16 is arranged at the top of the trigger sliding shaft 13. A threaded hole is formed in the output shaft of the linear electric cylinder 2. The screw rod 16 is fixedly connected with the threaded hole in a threaded manner. A trigger rod 17 is further arranged at the bottom of the trigger sliding shaft 13. A spring 18 is sleeved on the trigger rod 17.

[0028] During normal punching, the linear electric cylinder 2 drives the trigger sliding seat 5, the inclined rod 3 and the abutting ring 4 to move downward. When the abutting ring 4 contacts the fabric, the trigger rod 17 will compress the spring 18 and continue to move downward, and touch the micro switch 15. The micro switch 15 will emit an electric signal to stop the linear electric cylinder 2 from moving. At this time, if the travel switch 7 is triggered, it means that the abutting ring 4 is pressing on the fabric. The travel switch 7 can emit an electric signal to make the button sewing machine 90 perform punching and button sewing. When the worker places the hand in the moving path of the abutting ring 4, the abutting ring 4 will abut against the hand before touching the fabric. At this time, the trigger rod 17 will move downward in advance and trigger the micro switch 15, so that the output shaft of the linear electric cylinder 2 stops moving downward. At this time, the travel switch 7 is not triggered, and the button sewing machine 90 cannot perform punching and button sewing, thus ensuring safety.

[0029] The trigger sliding seat 5 includes a base block 19 and a cover plate 20. The cover plate 20 is fixedly connected with the base block 19 by screws. The micro switch 15 is fixedly arranged on the cover plate 20. Wire grooves 21 are further formed in the base block 19 and the cover plate 20 to facilitate the wiring of the micro switch 15.

[0030] Certainly, the above are only typical examples of the present utility model. In addition, the present utility model can also have many other specific implementation manners. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present utility model.

Claims

1. A safety device for an automatic button sewing machine, comprising a linear electric cylinder (2), an inclined rod (3) and an abutment ring (4), wherein the inclined rod (3) is arranged on the output shaft of the linear electric cylinder (2), and the abutment ring (4) is arranged at the bottom of the inclined rod (3), wherein: A trigger slide (5) is also provided at the top of the inclined rod (3); a mounting bracket (6) is extended from the trigger slide (5) toward the upper end of the linear electric cylinder (2); a travel switch (7) is provided on the mounting bracket (6); a trigger block (8) is provided at the side end of the linear electric cylinder (2); the trigger block (8) is used to trigger the travel switch (7); when the travel switch (7) is triggered, the button sewing machine (90) performs hole opening and button sewing.

2. The safety device of an automatic button sewing machine according to claim 1, characterized in that: A slide rail (9) is arranged at the side end of the linear electric cylinder (2), a slider (10) is arranged on the mounting bracket (6), the slider (10) and the slide rail (9) are slidably matched, the travel switch (7) is arranged on the slider (10), and the trigger block (8) is arranged at the side end of the slide rail (9).

3. The safety device of an automatic button sewing machine according to claim 2, characterized in that: The slide rail (9) is provided with a long waist hole (11), and the trigger block (8) is also provided with a fixed angle iron (12), and the fixed angle iron (12) fixes the trigger block (8) and the slide rail (9) by bolts.

4. The safety device for an automatic button sewing machine according to claim 1, characterized in that: A trigger slide shaft (13) is also arranged on the output shaft of the linear electric cylinder (2), a slide hole (14) is provided in the trigger slide seat (5), the trigger slide shaft (13) slides in the slide hole (14), a micro switch (15) is arranged at the bottom of the slide hole (14), and when the trigger slide shaft (13) abuts against the micro switch (15), the linear electric cylinder (2) stops pressing downward.

5. The automatic button sewing machine safety device according to claim 4, characterized in that: A screw rod (16) is arranged at the top of the trigger sliding shaft (13), a screw hole is opened on the output shaft of the linear electric cylinder (2), the screw rod (16) is threadedly fixed to the screw hole, and a trigger rod (17) is also arranged at the bottom of the trigger sliding shaft (13), and a spring (18) is sleeved on the trigger rod (17).

6. The safety device for an automatic button sewing machine according to claim 4, characterized in that: The trigger slide (5) comprises a base block (19) and a cover plate (20), wherein the cover plate (20) is fixed to the base block (19) by screws, the micro switch (15) is arranged on the cover plate (20), and the base block (19) and the cover plate (20) are also provided with a wire groove (21).

7. The automatic button sewing machine safety device according to claim 1, characterized in that: A protective shell (1) is also provided on the outside of the linear electric cylinder (2), and the protective shell (1) is fixed to the side end of the button sewing machine (90). A diagonal support plate is provided between the mounting bracket (6) and the trigger slide (5).

Images