Automatic sewing device for annular cloth bag

Abstract

The invention provides an automatic sewing device for an annular cloth bag, which is a special automatic sewing mechanism for precise sewing of the cloth bag and comprises a power mechanism, a servo lifting platform, a clamp and a sewing mechanism. After the mechanism is assembled, the second pneumatic claw grabs the needle thread on the needle thread plate, the second transverse moving module and the second transverse moving module move cooperatively to drive the needle thread to penetrate through the middle of the clamp together with the cloth bag, the first pneumatic claw takes out the needle thread from the other side through the first transverse moving module and the first transverse moving module, and the servo rotary table drives the cloth bag to rotate by 60 degrees. The first transverse moving module, the first horizontal moving module, the second transverse moving module and the second horizontal moving module cooperatively move to enable the second pneumatic claw to grab the silk thread on the first pneumatic claw back to the threading position, the operation is repeated, a circle of sewing is completed at the positions of the six clamps of the cloth bag, threading operation is repeated three times at the last sewing position, silk thread tensioning is completed, and the sewing process is completed. After tensioning, the second pneumatic claw clamps the wire and moves to the position right in front of the wire cutting air cylinder along with the second transverse moving module, the wire cutting air cylinder stretches out, and wire cutting is completed through heating of the resistance wire. According to the cloth bag sewing machine, the huge difficulty brought to production line personnel due to limitation of the material and the structure of a cloth bag is solved, full-automatic and unmanned cloth bag sewing is realized, the product performance and the quality consistency are favorably improved, and the cloth bag sewing stability requirement is ensured.

Description

TECHNICAL FIELD

[0001] The application relates to an automatic sewing device for a ring-shaped cloth bag, which solves the great difficulty brought to production line personnel due to the material and structure of the cloth bag, realizes automatic sewing of the cloth bag without personnel, and is favorable for improving product performance and quality consistency and guaranteeing the stability of cloth bag sewing. BACKGROUND

[0002] The series of products contain cloth bags in the medicine cartridges, the cloth bags are divided into one cavity and a ring shape, contain square, circular, strip-shaped and other various forms of bag, the material is waterproof cotton cloth, cotton cloth and the like, and the cloth bags are internally filled with granules, and the granules in each cavity of the ring-shaped cloth bag are required to be uniform. At present, the cloth bag is made of cotton cloth and has a ring-shaped structure, and during granule filling, the cloth bag needs to be sewn after being filled with granules respectively. During the granule filling, the granules in the cloth bag need to be ensured to be compact and have a substantially uniform height, sewing should be compact and should not have skipping stitches, loose threads, piled threads and detached sleeves, the head and tail of sewing should be sewn in reverse and two stitches are ensured not to be detached, and after sewing, the cloth bag needs to be turned up and sewn manually to maintain a certain rigidity. Since the cloth bag is made of cotton cloth and has soft material, the granule filling precision is not easy to control, and during sewing, the cloth bag is prone to have problems such as bag mouth wrinkles, thread skewing and skipping threads. Automatic cloth bag feeding, high-precision granule weighing and filling and automatic sewing are difficult points in the automatic preparation process of the cloth bag, and there are many on-site operators. Due to the material and structure of the cloth bag, it is difficult to reduce the personnel on the production line, and it is an industry common problem that is difficult to realize automation.

[0003] Therefore, in order to improve the stability of cloth bag sewing, the periphery of the ring-shaped cloth bag needs to be rigidly fixed to realize accurate control of the sewing position and path control. SUMMARY

[0004] In order to overcome and make up for the problem of poor product performance and quality consistency caused by manual sewing during cloth bag sewing, bring great difficulty to the subsequent application of the cloth bag, and make it difficult to meet the requirement of the stability of cloth bag sewing, the application provides an automatic sewing device for a ring-shaped cloth bag.

[0005] The power mechanism is composed of a servo motor, the servo lifting platform can realize automatic and accurate lifting of the cloth bag sewing platform, the clamp is composed of a clamp base, a clamp and a quick clamp, the clamp is fixed at the lower end of the clamp base through a jack, the quick clamp is connected to the upper end of the clamp base through a screw, six cylinders are directly machined on the upper end of the clamp base through wire cutting, and the ring-shaped cloth bag is accurately fixed on the clamp base through cooperation of the cylinders, the quick clamp and the clamp.

[0006] The bottom plate of the stitching mechanism, the thread cutting seat and the needle thread plate are fixed on the servo lifting platform, the thread cutting cylinder is fixed on the thread cutting seat, and the thread cutting cylinder is provided with a resistance wire at the front end; the rotary table connecting plate and the servo rotary table are sequentially connected to the bottom plate, the air gripper one, the air gripper one connecting plate, the tension sensor, the tension sensor connecting plate, the horizontal movement module one, the horizontal movement module connecting plate and the horizontal movement module one are sequentially connected to the bottom plate; the air gripper two, the air gripper two connecting plate, the horizontal movement module two, the horizontal movement module connecting plate, the horizontal movement module two and the horizontal movement module connecting plate are sequentially connected to the bottom plate, and the clamp base is fixed on the rotary table connecting plate through screws.

[0007] After the mechanism is assembled, the air gripper two grabs the needle thread on the needle thread plate, the horizontal movement module two and the horizontal movement module two are driven to move together to drive the needle thread to pass through the middle of the clamp together with the cloth bag, the air gripper one is taken out from the other side through the horizontal movement module one and the horizontal movement module one, the servo rotary table drives the cloth bag to rotate by 60 degrees, the horizontal movement module one, the horizontal movement module one, the horizontal movement module two and the horizontal movement module two move together to make the air gripper two grab the thread on the air gripper one back to the threading position, and the above operation is repeated to complete one cycle of stitching at the six clamp positions of the cloth bag, and the thread is tightened by repeating the threading operation three times at the last stitching position, and after the thread is tightened, the air gripper two clamps the thread and moves to the front of the thread cutting cylinder position together with the horizontal movement module two, the thread cutting cylinder is extended, and the thread is cut through the resistance wire heating.

[0008] The application has the advantages that the automatic stitching of the annular cloth bag is realized, the great difficulty and danger brought to the production line personnel due to the material and structure of the cloth bag are solved, the automatic sewing of the cloth bag is realized, the product performance and quality consistency are improved, and the stability requirement of the cloth bag sewing is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0009] The application will be further described below with reference to the drawings.

[0010] ATTACHED Figure 1 Front view of the automatic stitching mechanism of the annular cloth bag ATTACHED Figure 2 Plan view of the automatic stitching mechanism of the annular cloth bag ATTACHED Figure 3 Three-dimensional schematic view of the cloth bag In the drawings: 1. Servo lifting platform, 2. Servo motor one, 3. Horizontal movement module one, 4. Tension sensor connecting plate, 5. Tension sensor, 6. Air gripper one connecting plate, 7. Air gripper one, 8. Quick clamp, 9. Clamp base, 10. Clamp, 11. Rotary table connecting plate, 12. Air gripper two, 13. Air gripper two connecting plate, 14. Servo motor two, 15. Horizontal movement module two, 16. Bottom plate, 17. Servo rotary table, 18. Servo motor three, 19. Servo motor four, 20. Horizontal movement module connecting plate, 21. Needle thread plate, 22. Thread cutting seat, 23. Thread cutting cylinder, 24. Horizontal movement module two, 25. Servo motor five, 26. Horizontal movement module one. DETAILED DESCRIPTION

[0011] The application will be described in detail below in conjunction with the drawings and specific embodiments.

[0012] In Figure 1 , Figure 2 , Figure 3 , the servo lifting platform 1 can realize automatic and precise lifting of the cloth bag sewing platform, the clamp is composed of a clamp base 9, a clamp 10 and a quick clamp 8, the clamp 10 is fixed at the lower end of the clamp base 9 through a top wire, the quick clamp 8 is connected to the upper end of the clamp base 9 through a screw, and six cylinders are directly processed on the upper end of the clamp base 9 through wire cutting. The annular cloth bag is accurately fixed on the clamp base through the cooperation of the cylinders, the quick clamp 8 and the clamp 10.

[0013] The bottom plate 16 of the sewing mechanism, the thread cutting seat 22 and the needle thread plate 21 are fixed on the servo lifting platform 1, the thread cutting cylinder 23 is fixed on the thread cutting seat 22, and the front end of the thread cutting cylinder 23 is provided with a resistance wire; the turntable connecting plate 11 and the servo turntable 17 are sequentially connected to the bottom plate 16, the air claw one 7, the air claw one connecting plate 6, the tension sensor 5, the tension sensor connecting plate 4, the horizontal moving module one 3, the horizontal moving module connecting plate 20 and the horizontal moving module one 26 are sequentially connected to the bottom plate 16; the air claw two 12, the air claw two connecting plate 13, the horizontal moving module two 15, the horizontal moving module connecting plate 20 and the horizontal moving module two 24 are sequentially connected to the bottom plate 16, and the clamp base 9 is fixed on the turntable connecting plate 11 through a screw.

[0014] In Figure 1 , Figure 2 , Figure 3 , the air claw two 12 grabs the needle thread on the needle thread plate 21, the horizontal moving module two 15 and the horizontal moving module two 24 move cooperatively to drive the needle thread to pass through the middle of the clamp 10 together with the cloth bag, the air claw one 7 takes out the needle thread from the other side through the cooperative movement of the horizontal moving module one 3 and the horizontal moving module one 26, the servo turntable 17 drives the cloth bag to rotate by 60°, the horizontal moving module one 3, the horizontal moving module one 26, the horizontal moving module two 15 and the horizontal moving module two 24 move cooperatively to make the air claw two 12 grab the thread on the air claw one 7 back to the thread passing position, and the above operation is repeated to complete one round of sewing at the six clamp 10 positions of the cloth bag. At the last sewing position, the thread passing operation is repeated three times to complete the thread tensioning, and after the tensioning, the air claw two 12 clamps the thread to move to the front of the thread cutting cylinder 23 together with the horizontal moving module two 15, the thread cutting cylinder 23 extends, and the thread cutting is completed through the heating of the resistance wire.

[0015] Any equivalent technical changes introduced in the description and drawings of the application are included in the protection scope of the application.

Claims

1. A device for automatic sewing of circular cloth bags, characterized in that: The utility model relates to an automatic sewing device for annular cloth bag, which comprises a power mechanism, a servo lifting platform, a clamp and a sewing mechanism. The servo lifting platform (1) can realize automatic and accurate lifting of the cloth bag sewing platform. The clamp is composed of a clamp base (9), a clamp (10) and a quick vise (8). The clamp (10) is fixed at the lower end of the clamp base (9) through a top screw. The quick vise (8) is connected to the upper end of the clamp base (9) through a screw. Six cylinders are directly processed on the upper end of the clamp base (9) through wire cutting. The annular cloth bag is accurately fixed on the clamp through the cylinders, the quick vise (8) and the clamp (10). The bottom plate (16), the thread cutting seat (22) and the needle thread plate (21) of the sewing mechanism are fixed on the servo lifting platform (1). The thread cutting cylinder (23) is fixed on the thread cutting seat (22), and the front end of the thread cutting cylinder (23) is provided with a resistance wire. The turntable connecting plate (11) and the servo turntable (17) are sequentially connected to the bottom plate (16). The air claw one (7), the air claw one connecting plate (6), the tension sensor (5), the tension sensor connecting plate (4), the horizontal movement module one (3), the horizontal movement module connecting plate (20), the horizontal movement module one (26) are sequentially connected to the bottom plate (16). The air claw two (12), the air claw two connecting plate (13), the horizontal movement module two (15), the horizontal movement module connecting plate (20), the horizontal movement module two (24) are sequentially connected to the bottom plate (16). The clamp base (9) is fixed on the turntable connecting plate (11) through a screw.

2. The automatic sewing device for circular cloth bag according to claim 1, characterized in that: The air claw two (12) grabs the needle thread on the needle thread plate (21). The horizontal movement module two (15) and the horizontal movement module two (24) cooperatively move to drive the needle thread to pass through the middle of the clamp (10) together with the cloth bag. The air claw one (7) takes out the needle thread from the other side through the cooperative movement of the horizontal movement module one (3) and the horizontal movement module one (26). The servo turntable (17) drives the cloth bag to rotate by 60 degrees. The horizontal movement module one (3), the horizontal movement module one (26), the horizontal movement module two (15) and the horizontal movement module two (24) cooperatively move to make the air claw two (12) grab the wire on the air claw one (7) back to the threading position. The above operation is repeated to complete one round of sewing at the six clamp (10) positions of the cloth bag. At the last sewing position, the threading operation is repeated three times to tighten the wire. After being tightened, the air claw two (12) moves to the front of the thread cutting cylinder (23) together with the horizontal movement module two (15). The thread cutting cylinder (23) is extended to cut the wire by using the resistance wire.

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