Bobbin case delivery and recovery device for a multi-station sewing apparatus

Abstract

The application discloses a shuttle shell conveying and recycling device for a multi-station sewing device, which is installed below a machine base of a multi-head embroidery machine and is used in cooperation with a shuttle shell taking and mounting device. The device comprises a conveying belt, a blocking piece, a shuttle shell positioning mechanism and a shuttle shell receiving mechanism. The conveying belt is used for circular or reciprocating conveying. The shuttle shell positioning mechanism and the shuttle shell receiving mechanism are correspondingly arranged on the conveying belt and can correspond to machine heads on the machine base. The shuttle shell positioning mechanism is used for placing a shuttle shell (a shuttle core) loaded with a bottom thread at a fixed position on the conveying belt by contacting the shuttle shell (the shuttle core) in multiple directions. The shuttle shell receiving mechanism is used for receiving a used shuttle shell (a shuttle core) with a used bottom thread and conveying the used shuttle shell (the shuttle core) together with the conveying belt. The blocking piece is fixedly arranged and is used for blocking a used shuttle shell (a shuttle core) with a used bottom thread on the shuttle shell receiving mechanism to push the used shuttle shell (the shuttle core) to fall. The application provides a shuttle shell conveying and recycling device which can be used for conveying and recycling shuttle shells for a multi-station sewing device.

Description

Technical Field

[0001] This invention relates to the field of sewing auxiliary equipment technology, and in particular to a bobbin conveying and recycling device for multi-station sewing equipment. Background Technology

[0002] Existing multi-head embroidery machines have a row of head stations on the machine base, with a shuttle box at each head station. The shuttle box contains the head that houses the shuttle housing assembly. When the embroidery machine runs out of thread, the shuttle housing needs to be replaced, which involves removing the shuttle housing with the used thread and installing the shuttle housing with the used thread. Since there are many heads in the embroidery machine, manual handling is very time-consuming and labor-intensive. Therefore, automatic shuttle feeders for automatic thread changing devices for computerized embroidery machines, such as the one with application number CN2011100739202, have emerged. However, similar machines require a corresponding shuttle feeder for each head, and the replaced shuttle housings also need to be recycled by another device, resulting in complex equipment and high manufacturing costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a bobbin conveying and recycling device for multi-station sewing equipment. The device has a simple structure and is easy to manufacture. It can convey bobbins loaded with bobbin thread to the sewing head of the multi-station sewing machine and collect and collect bobbins after the bobbin thread has been used. It can solve the shortcomings of the prior art.

[0004] The technical solution of this invention is: a bobbin case conveying and recycling device for multi-station sewing equipment, installed below the base of a multi-head embroidery machine, used in conjunction with a bobbin case loading and unloading device, comprising a conveyor belt, a stop, a bobbin case positioning mechanism, and a bobbin case receiving mechanism. The conveyor belt circulates or reciprocates, and the bobbin case positioning mechanism and the bobbin case receiving mechanism are correspondingly arranged on the conveyor belt, corresponding to the machine heads on the base. The bobbin case positioning mechanism contacts the bobbin case in multiple directions, placing the bobbin case containing the thread thread at a fixed position on the conveyor belt. The bobbin case receiving mechanism receives the bobbin case with the used thread thread and conveys it along with the conveyor belt. The stop is fixedly set to block the bobbin case with the used thread thread from passing the bobbin case receiving mechanism and push it off.

[0005] Furthermore, the shuttle shell receiving mechanism has a magnetic absorbing body that magnetically attracts the shuttle shell after it has run out of thread.

[0006] It further includes several support rollers corresponding to the machine head, and the several support rollers are rotatably arranged to abut against the inner side of the conveyor belt.

[0007] Furthermore, the outer surface of the support roller is stepped, having a stepped surface that limits the upper and lower sides of the conveyor belt.

[0008] Furthermore, the shuttle housing positioning mechanism includes a rigid planar body that conforms to the outer surface of the conveyor belt, and the limiting cavity is located at the center of the rigid planar body.

[0009] Further, it includes several rotatably arranged limiting rollers, with the support rollers and limiting rollers respectively disposed on the inner and outer sides of the conveyor belt, and the limiting rollers abutting against the outer surface of the rigid plane.

[0010] Furthermore, the shuttle shell receiving mechanism is located below the rigid plane body and is an integral structure with the rigid plane body.

[0011] Further, it includes a fixedly installed air guide plate, with the air nozzle located between the conveyor belt and the air guide plate.

[0012] By implementing this invention, the bobbin positioning mechanism and the bobbin receiving mechanism are arranged one-to-one on the conveyor belt and transported in a cyclic or reciprocating manner. The bobbin filling device is set next to the conveyor belt and loads the bobbins containing the bobbin thread into the bobbin positioning mechanism as they pass by, and then transports them to the bottom of the head of the multi-head embroidery machine. Each head is equipped with a bobbin loading and unloading device. The bobbin loading and unloading device removes the bobbins with the bobbin thread used up from the head and drops them onto the corresponding bobbin receiving mechanism. Then, it removes the bobbins with the bobbin thread in the bobbin positioning mechanism and moves them into the corresponding head. Subsequently, the conveyor belt continues to transport the bobbins. The stopper blocks the bobbins with the bobbin thread used up on the bobbin receiving mechanism as they pass by, causing them to fall off and be collected in a centralized manner. The bobbin filling device then loads the bobbins with the bobbin thread into the bobbin positioning mechanism as they pass by. This cycle continues. Through this simple mechanism, it is possible to transport bobbins with the bobbin thread loaded to the multi-station head and to collect and concentrate the bobbins with the bobbin thread used up. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention;

[0014] Figure 2 for Figure 1 Enlarged view of point A;

[0015] Figure 3 for Figure 1 Enlarged view of point B;

[0016] Figure 4 This is a first view of the bobbin and the bobbin case;

[0017] Figure 5 This is a second view of the bobbin and the bobbin case;

[0018] Figure 6 This is a schematic diagram of the support roller.

[0019] The diagram shows: 1. Base; 2. Shuttle shell loading and unloading device; 3. Machine head; 4. Conveyor belt; 5. Stop; 6. Shuttle shell positioning mechanism; 7. Shuttle shell receiving mechanism; 8. Limiting cavity; 9. Horizontal connecting plate; 10. Magnetic suction body; 11. Support roller; 12. Stepped surface; 13. Hard flat body; 14. Limiting roller; 15. Contact surface; 16. Shuttle core; 17. Shuttle shell; 18. Pressing plate; 19. Blocking part; 20. Notch; 21. Air nozzle; 22. Thread attachment; 23. Air guide plate; 24. Detailed Implementation

[0020] Embodiments of the present invention: such as Figures 1 to 3 As shown, a bobbin case conveying and recycling device for a multi-station sewing machine is installed below the base 1 of a multi-head embroidery machine and works in conjunction with a bobbin case loading / unloading device 2. Each head 3 of the multi-head embroidery machine is equipped with a corresponding bobbin case loading / unloading device 2. The inventive point of this application is that it includes a conveyor belt 4, a stop 5, a bobbin case positioning mechanism 6, and a bobbin case receiving mechanism 7. The conveyor belt 4 is located below the base 1 and is driven by a motor-driven active roller and a linked driven roller to circulate or reciprocate the bobbin case. The bobbin case positioning mechanism 6 and the bobbin case receiving mechanism 7 are arranged one-to-one on the conveyor belt 4. The distance between two adjacent bobbin case positioning mechanisms 6 and bobbin case receiving mechanisms 7 is equal to the distance between two adjacent heads 3 of the multi-head embroidery machine. The bobbin case is conveyed by the conveyor belt 4, and each head 3 has a corresponding bobbin case positioning mechanism 6 and bobbin case receiving mechanism 7. To simplify the structure and ensure that the bobbin case positioning mechanism 6 and bobbin case receiving mechanism 7 are stably installed on the conveyor belt 4, the conveyor belt 4 adopts the following... Figure 1The vertical arrangement shown indicates that the outer surface of the conveyor belt 4 is vertical. The bobbin case positioning mechanism 6 is fixed on the outer surface of the conveyor belt 4 and has a limiting cavity 8 extending inward to the conveyor belt 4 for placing bobbin cases containing thread. The bobbin case receiving mechanism 7 is located below the corresponding bobbin case positioning mechanism 6 and includes a horizontal receiving plate 9 for receiving bobbin cases with used thread that have fallen off. A stop 5 is fixedly installed to block the bobbin cases with used thread that have passed through the bobbin case receiving mechanism 7 and push them off. Specifically, a bobbin case filling device (not shown in the figure) is configured next to the conveyor belt 4 to load the bobbin cases containing thread into the limiting cavity 8 of the passing bobbin case positioning mechanism 6 and convey them with the conveyor belt 4 to the bottom of the head 3 of the multi-head embroidery machine. Each head 3 is equipped with a bobbin case loading and unloading device 2. The device 2 removes the used bobbin case from the head 3 and drops it onto the corresponding bobbin case receiving mechanism 7. Then, it removes the bobbin case with the bobbin case in the bobbin case positioning mechanism 6 and moves it into the corresponding head 3. Subsequently, the conveyor belt 4 continues to transport the bobbin case (meaning that the conveyor belt 4 can transport backward for reset or continue to transport forward in a cycle). The stop 5 blocks the used bobbin case on the bobbin case receiving mechanism 7 and knocks it off. A receiving container 10 is set below the stop 5. The knocked-off used bobbin case falls into the container 10 for centralized collection. The bobbin case is filled into the equipment and then the bobbin case with the bobbin case is loaded into the bobbin case positioning mechanism 6. This cycle is repeated. Through this simple mechanism, the bobbin case with the bobbin case loaded can be transported to the head 3 of multiple stations, and the used bobbin case can be collected and concentrated.

[0021] This application requires a bobbin-filling device to load the bobbin containing the bobbin thread into the bobbin positioning mechanism 6. If a traditional bobbin and bobbin structure is used, the bobbin can easily separate from the bobbin during the loading process, resulting in loading failure. Figures 4 to 5As shown, this application provides a blocking part 20 on the pressure plate 19 of the shuttle case 18, and a notch 21 for the blocking part 20 to enter is provided on the peripheral wall of the shuttle case 18. The blocking part 20 can block the bobbin 17 installed in the shuttle case 18 to prevent the bobbin 17 from escaping and separating from the shuttle case 18, so as to realize the overall transfer of the shuttle case with the bottom thread. Since the shuttle case with the bottom thread needs to be installed in the machine head 3 with the bobbin 17 side inside and the shuttle case 18 side outside, in order to facilitate the transfer operation of the shuttle case loading and unloading equipment 2, the shuttle case with the bottom thread is installed... The bobbin 17 side is placed inside the bobbin case 18 side, and the bobbin case 18 side is placed outside the bobbin case positioning mechanism 6 (within the limiting cavity 8). The end of the bobbin thread passes around the guide hook on the bobbin case 18 and is located on the side of the bobbin case 18. Since the end of the bobbin thread is not fixed, during the transfer process, the end of the bobbin thread may run to the side of the bobbin 17 and be installed on the head 3. In this case, the end of the bobbin thread is pressed between the bobbin 17 and the rotary hook of the head 3, and the embroidery machine cannot grab the end of the bobbin thread for normal threading. To address this, this application provides a [missing information - likely a device or mechanism] next to the conveyor belt 4. The air nozzle 22, connected to the air source, has a thread attachment 23 located below each of the six shuttle housing positioning mechanisms (within the limiting cavity 8). The thread attachment 23 is similar to Velcro, allowing the thread to be attached. The air nozzle 22 is located above the conveyor belt 4 and blows air onto the shuttle housings containing the bottom thread, causing the thread to adhere to the thread attachment 23. Since the shuttle housing loading and unloading device 2 needs to contact the back of the shuttle housing 18 to grasp it, the thread is clamped and fixed to the shuttle housing 18. Between the shuttle shell taking device 2 and the machine head 3, the thread ends are prevented from running to the side of the shuttle core 17 during the transfer process. In addition, in order to concentrate the air blown out of the air nozzle 22 to the side of the conveyor belt 4 and improve the success rate of the thread ends being blown to and attached to the thread end attachment 23, an air guide plate 24 is set to block the air nozzle 22 away from the side of the conveyor belt 4. The air guide plate 24 prevents the thread ends from drifting outward and plays a role in guiding and concentrating the airflow, so that the airflow is concentrated to blow the thread ends to the thread end attachment 23.

[0022] As a preferred embodiment, the bobbin receiving mechanism 7 has a magnetic accumulator 11 that magnetically attracts the bobbin after the thread has been used up. The magnetic accumulator 11 is disposed on the horizontal connecting plate 9 to magnetically fix the bobbin after the thread has been used up, so that it can be smoothly conveyed to the stop 5 and dislodged, preventing it from accidentally falling off due to vibration or slippage during the conveying process.

[0023] As a preferred embodiment, the device includes several support rollers 12 corresponding to the head 3. The support rollers 12 are rotatably positioned below the corresponding head 3 and roll against the inner side of the conveyor belt 4. The conveyor belt 4 needs to be circulated and is relatively soft. When the shuttle shell loading and unloading device 2 grabs the shuttle shell with the bottom line in the shuttle shell positioning mechanism 6, it will push the conveyor belt 4 inward and cause the grabbing failure. By setting the support rollers 12 to roll against its inner side, this problem can be effectively solved.

[0024] As a preferred option, such as Figure 6As shown, the outer surface of the support roller 12 is stepped. Since the shuttle housing positioning mechanism 6 has a limiting cavity 8 extending into the inside of the conveyor belt 4 for placing the shuttle housing containing the bottom thread, in order to prevent the support roller 12 from interfering with the limiting cavity 8 when the shuttle housing positioning mechanism 6 passes through, the middle part of the support roller 12 is recessed inward. The upper and lower sides of the recess are contact surfaces 16 that abut against the inside of the conveyor belt 4. In addition, the support roller 12 has a stepped surface 13 that limits the upper and lower sides of the conveyor belt 4, so that the conveyor belt 4 will not shift up and down. The shuttle housing loading and unloading device 2 can accurately grab the shuttle housing containing the bottom thread in the shuttle housing positioning mechanism 6.

[0025] As a preferred embodiment, the shuttle shell positioning mechanism 6 includes a rigid planar body 14 that conforms to the outer surface of the conveyor belt 4. The rigid planar body 14 is braked by a rigid metal material, and the limiting cavity 8 is located at the center of the rigid planar body 14, which can better perform positioning and reduce the influence of the deformation of the conveyor belt 4, so that the shuttle shell loading and unloading device 2 can more accurately grasp the shuttle shell with the bottom line in the shuttle shell positioning mechanism 6.

[0026] As a preferred embodiment, the device includes several rotating limit rollers 15. The support rollers 12 and the limit rollers 15 are respectively disposed on the inner and outer sides of the conveyor belt 4, located below the corresponding machine head 3. The limit rollers 15 roll and abut against the lower end of the outer surface of the rigid flat body 14, which plays a better limiting role for the shuttle shell positioning mechanism 6, preventing it from moving. This achieves multi-directional limitation of the shuttle shell positioning mechanism 6 when it is below the corresponding machine head 3, enabling the shuttle shell loading and unloading equipment 2 to complete the gripping operation more accurately.

[0027] As a preferred embodiment, the shuttle shell receiving mechanism 6 is located below the rigid plane body 14, and the horizontal connecting plate 9 is an integral structure with the rigid plane body 14, which simplifies the structure and facilitates manufacturing and installation.

Claims

1. A shuttle conveying and recycling device for multi-station sewing equipment, which is installed below the base of a multi-head embroidery machine and cooperates with a shuttle taking and loading device, characterized in that: This invention comprises a conveyor belt, a stop, a bobbin positioning mechanism, and a bobbin receiving mechanism. The conveyor belt transports bobs in a cyclic or reciprocating manner. The bobbin positioning and receiving mechanisms are distributed one-to-one on the conveyor belt and installed below the base of a multi-head embroidery machine. It is used in conjunction with a bobbin loading and unloading device. The invention is characterized by: a conveyor belt, a stop, a bobbin positioning mechanism, and a bobbin receiving mechanism; the conveyor belt transports bobs in a cyclic or reciprocating manner; the bobbin positioning and receiving mechanisms are distributed one-to-one on the conveyor belt; each machine head is equipped with a corresponding bobbin loading and unloading device; and each machine head has a corresponding bobbin positioning mechanism and a bobbin receiving mechanism. The bobbin positioning mechanism contacts the bobbin in multiple directions, placing the bobbin containing the bobbin thread at a fixed position on the conveyor belt. The bobbin loading and unloading device removes the bobbins with used thread from the machine head and drops them onto the corresponding bobbin receiving mechanism. Then, it removes the bobbins with thread in the bobbin positioning mechanism and moves them into the corresponding machine head. Subsequently, the conveyor belt continues to transport the bobbins. The stopper blocks the bobbins with used thread on the bobbin receiving mechanism and pushes them off. The outer surface of the conveyor belt is a vertical plane. The bobbin positioning mechanism is fixed on the outer surface of the conveyor belt and has a limiting cavity extending inward to the inside of the conveyor belt for placing the bobbins with thread. It includes a fixedly installed air nozzle connected to an air source. Each bobbin positioning mechanism has a corresponding thread end attachment. The air nozzle blows air onto the bobbins with thread in the bobbin positioning mechanism that are passing by, blowing the thread end onto the thread end attachment.

2. The shuttle case delivery and recovery device for multi-station sewing apparatus according to claim 1, characterized in that: The bobbin receiving mechanism has a magnetic absorbing body that magnetically attracts bobbins that have run out of thread.

3. The shuttle case delivery and recovery device for multi-station sewing apparatus according to claim 1, characterized in that: It includes several support rollers corresponding to the machine head, the several support rollers are rotatably arranged, and the several support rollers abut against the inner side of the conveyor belt.

4. The shuttle case delivery and recovery device for multi-station sewing apparatus according to claim 3, characterized in that: The outer surface of the support roller is stepped, with stepped surfaces that limit the upper and lower sides of the conveyor belt.

5. The shuttle case delivery and recovery device for multi-station sewing apparatus according to claim 3, characterized in that: The shuttle housing positioning mechanism includes a rigid planar body that fits against the outer surface of the conveyor belt, and the limiting cavity is located at the center of the rigid planar body.

6. The shuttle case delivery and recovery device for multi-station sewing apparatus according to claim 5, characterized in that: It includes several rotatably arranged limiting rollers, with the support rollers and limiting rollers respectively disposed on the inner and outer sides of the conveyor belt, and the limiting rollers abutting against the outer surface of the rigid plane.

7. The shuttle case delivery and recovery device for multi-station sewing apparatus according to claim 5, characterized in that: The shuttle shell receiving mechanism is located below the rigid plane body and is an integral part of the rigid plane body.

8. The shuttle case delivery and recovery device for multi-station sewing apparatus according to claim 1, characterized in that: It includes a fixedly installed air guide plate, and the air nozzle is located between the conveyor belt and the air guide plate.

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