Button sewing machine

Abstract

The utility model provides a button sewing machine, and belongs to the technical field of button sewing machines. The problem that an existing button sewing machine is low in production efficiency is solved. The button sewing machine comprises a machine base, a pull rod arranged in the machine base in a penetrating mode, a sensor capable of sensing the position of the pull rod, a connecting rod structure located in the machine base, a push rod arranged in the machine base in a penetrating mode and a rotating frame rotationally arranged in the machine base. The rotating frame comprises a plurality of upper mounting arms located at the top and used for mounting upper dies and a plurality of lower mounting arms located at the bottom and used for mounting lower dies, a protection rod capable of elastically resetting is arranged in each upper mounting arm in a penetrating mode, and the bottom end of each protection rod is located below the corresponding upper mounting arm and fixedly connected with a protection ring; the pull rod moves to drive the push rod to move through the connecting rod structure, and the push rod moves to push the protection rod to move. The button sewing machine has the advantages of being high in production efficiency and capable of effectively protecting finger safety of operators.

Description

Technical Field

[0001] The utility model belongs to the technical field of button sewing machines and relates to a button sewing machine. Background Art

[0002] A button sewing machine is a mechanical device specifically designed to attach buttons to clothing. It is widely used in the garment manufacturing industry to improve production efficiency and reduce the time and cost of manual operations.

[0003] Existing button sewing machines, for example, Chinese patent literature discloses a safety button sewing machine [patent number: 201920469688.6; application publication number: CN209732677U], which is provided with an operating pull rod, a position sensor and a transmission guide mechanism on its base. The operating pull rod is hinged to the transmission guide mechanism. The operating pull rod is arranged at the inner end of the pull rod through hole at the lower part of the base in the vertical direction. The end of the transmission guide mechanism is connected and installed with a protective ring, which can drive the protective ring to move in the vertical direction. The protective ring is arranged at the outer end of the base and at the lower end of the punch rod. The transmission guide mechanism is equipped with a position sensing piece that senses the position sensor. The position sensor is arranged at the base position end corresponding to the position sensing piece in the upper and lower maximum displacement positions of the protective ring, and is electrically connected to the servo motor controller.

[0004] A button sewing machine with this structure has only one pair of dies installed on the machine base. The operating lever, position sensor, transmission guide mechanism and protective ring work together to protect only one pair of dies. In actual production, there may be many metal buttons of different types and sizes on the same product. When using a button sewing machine with this structure for processing, multiple button sewing machines are required, each equipped with a different die to achieve product processing. The setting of multiple button sewing machines will increase costs, and the need to move the product from one button sewing machine to the next for button sewing will reduce production efficiency. Summary of the Invention

[0005] The purpose of the utility model is to solve the above-mentioned problems existing in the prior art and to propose a button sewing machine, which solves the technical problem of how to improve the production efficiency of the button sewing machine and effectively protect the safety of the operator's fingers.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a button sewing machine, comprising a machine base, a pull rod passed through the machine base and a sensor capable of sensing the position of the pull rod, characterized in that the button sewing machine also includes a connecting rod structure located in the machine base, a push rod passed through the machine base and a rotatable rotating frame arranged in the machine base, the rotating frame includes a plurality of upper mounting arms located at the top for mounting the upper mold and a plurality of lower mounting arms located at the bottom for mounting the lower mold, each of the upper mounting arms is provided with a protective rod that can be elastically reset, the bottom end of the protective rod is located below the upper mounting arm and is fixed with a protective ring, the movement of the pull rod can drive the push rod to move through the connecting rod structure, and the movement of the push rod can drive the protective rod to move.

[0007] During operation, the pull rod is pulled to move, and the movement of the pull rod drives the push rod to move through the connecting rod structure. The movement of the push rod pushes the protective rod to move, thereby moving the protective ring. When the protective ring is not blocked by fingers, the protective ring moves into place. The sensor senses that the pull rod has moved into place, and the button sewing machine starts working. The upper die moves down to cooperate with the lower die to complete the button sewing. When the protective ring is blocked by fingers, the protective ring is not moved into place, and the pull rod cannot move. The sensor senses that the pull rod is not moved into place, and the button sewing machine will not start, which can effectively protect the operator's fingers and improve the safety of the button sewing machine. The rotating frame of the button sewing machine is rotatable. The number of upper mounting arms and lower mounting arms of the rotating frame is more than two. The upper die and lower die cooperate to sew the same type of buttons or different buttons. Since there are multiple upper dies and lower dies, buttons can be loaded while sewing buttons. At the same time, different buttons can be sewn on the same button sewing machine, thereby improving the production efficiency of the button sewing machine. At the same time, after the rotating frame rotates, the protective rods located in different upper mounting arms can all be moved to directly below the push rod. The movement of all protective rods can be achieved through a connecting rod structure and a push rod, which is an ingenious design.

[0008] In the above-mentioned button sewing machine, the connecting rod structure includes a first connecting rod and a second connecting rod, the middle parts of the first connecting rod and the second connecting rod are both hinged to the machine base, the rear end of the first connecting rod is hinged to the top end of the pull rod, and the front end of the second connecting rod is hinged to the top end of the push rod. The front end of the first connecting rod has a strip hole, and the rear end of the second connecting rod is fixed with a hinge shaft, which is passed through the strip hole and can move along the length direction of the strip hole so that the front end of the first connecting rod and the rear end of the second connecting rod are hinged. The arrangement of the strip hole and the hinge shaft allows the length of the first connecting rod and the second connecting rod to be changed, so that the up and down movement of the pull rod can drive the push rod to move up and down through the connecting rod structure without getting stuck, and the transmission is convenient and the structure is simple, thereby effectively protecting the operator's fingers and improving the safety of the button sewing machine.

[0009] As another case, in the above-mentioned button sewing machine, the connecting rod structure includes a first connecting rod and a second connecting rod, the middle parts of the first connecting rod and the second connecting rod are both hinged to the machine base, the rear end of the first connecting rod is hinged to the top end of the pull rod, the front end of the second connecting rod is hinged to the top end of the push rod, the front end of the first connecting rod is fixedly connected with a hinge shaft, the rear end of the second connecting rod has a strip hole, the hinge shaft is passed through the strip hole and the hinge shaft can move along the length direction of the strip hole so that the front end of the first connecting rod and the rear end of the second connecting rod are hinged. The arrangement of the strip hole and the hinge shaft allows the length of the first connecting rod and the second connecting rod to be changed, so that the up and down movement of the pull rod can drive the push rod to move up and down through the connecting rod structure without getting stuck, the transmission is convenient, and the structure is simple, thereby effectively protecting the operator's fingers and improving the safety of the button sewing machine.

[0010] In the aforementioned button sewing machine, the machine base has a downwardly recessed escape groove, the escape groove being located directly below the hinged joint between the first and second connecting rods. The escape groove provides an escape space, thereby making the structure of the first and second connecting rods and the machine base compact.

[0011] In the aforementioned button sewing machine, the top of the push rod has a push hole, the front end of the second connecting rod is bent into a U-shape, and one side of the U-shaped front end of the second connecting rod is inserted into the push hole, thereby hingedly connecting the second connecting rod to the push rod. This structure allows the second connecting rod to better drive the push rod to move, and the arrangement of the push rod and the second connecting rod is reasonable.

[0012] In the aforementioned button sewing machine, the machine base includes an upwardly projecting abutment platform located between the middle portion of the first connecting rod, the hinge point of the machine base, and the pull rod. The top surface of the abutment platform is tilted downwardly along the front-to-back direction of the machine base, and the first connecting rod can rest against the top surface of the abutment platform. This structure allows the abutment platform to support the first connecting rod, improving its stability, thereby effectively protecting the operator's fingers and enhancing the safety of the button sewing machine.

[0013] In the aforementioned button sewing machine, the first and second connecting rods are both in the form of long strips, with the front end of the first connecting rod and the rear end of the second connecting rod abutting against each other. This structure improves the stability of the first and second connecting rods during relative movement, thereby effectively protecting the operator's fingers and improving the safety of the button sewing machine.

[0014] In the aforementioned button sewing machine, each upper mounting arm has a through-hole, and the top of the protection hole has an inwardly indented, annular abutment portion. The push rod can pass through the abutment portion and extend into the protection hole. The top of the protection rod is inserted into the protection hole. A spring is provided on the outer sleeve of the protection rod. Under the action of the spring force, the protection rod always has a tendency to move upward and abut against the abutment portion. The protection rod is pushed downward by the push rod, and automatically resets upward by the elastic force of the spring, resulting in a simple structure.

[0015] In the above-mentioned button sewing machine, the pulling rod, the pushing rod and the protecting rod are all arranged in a vertical direction, and the protecting rod can be located directly below the pushing rod.

[0016] In the above-mentioned button sewing machine, the top of the machine base is fixedly connected to a housing, the connecting rod structure is located in the housing, and a control panel is provided in front of the housing. This structure allows the control panel to face the operator, making the button sewing machine easy to operate.

[0017] Compared with the prior art, the button sewing machine provided by the present invention has the following advantages:

[0018] 1. The rotating frame of this button sewing machine can rotate. The number of the upper mounting arms and the lower mounting arms of the rotating frame is more than two, which can be used to sew different buttons. Different buttons can be sewed on the same button sewing machine, thereby improving the production efficiency of the button sewing machine.

[0019] 2. After the rotating frame of this button sewing machine rotates, the protective rods located in different upper mounting arms can all be moved to directly below the push rod. The movement of all protective rods can be achieved through a connecting rod structure and a push rod, which is an ingenious design. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the button sewing machine.

[0021] Figure 2 It is a schematic diagram of the position of the connecting rod structure of this button sewing machine.

[0022] Figure 3 It is a schematic diagram of the positions of the push rod and the protection rod of this button sewing machine.

[0023] Figure 4 It is a schematic diagram of the overall structure of the button sewing machine's pull rod, connecting rod structure, push rod and protection rod.

[0024] In the figure, 1. base; 2. pull rod; 3. sensor; 4. connecting rod structure; 41. first connecting rod; 42. second connecting rod; 43. strip hole; 44. hinge shaft; 5. push rod; 51. push hole; 6. rotating frame; 61. upper mounting arm; 611. protection hole; 612. abutment part; 62. lower mounting arm; 7. upper mold; 8. lower mold; 9. protection rod; 10. protection ring; 11. avoidance groove; 12. abutment platform; 13. spring; 14. housing; 15. control panel. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] like Figure 1 、 Figure 2 As shown, the button sewing machine includes a machine base 1, a pull rod 2, a sensor 3, a connecting rod structure 4, a push rod 5, a rotating frame 6, an upper mold 7, a lower mold 8, a protective rod 9, a protective ring 10, a casing 14 and a control panel 15.

[0027] The pull rod 2 is passed through the rear end of the machine base 1, and the push rod 5 is passed through the front end of the machine base 1. The pull rod 2 and the push rod 5 are both arranged in the vertical direction. The pull rod 2 and the push rod 5 are connected by a connecting rod structure 4. The top of the machine base 1 is fixedly connected to the machine casing 14. The connecting rod structure 4 is located in the machine casing 14. There is a control panel 15 directly in front of the machine casing 14.

[0028] Specifically, if Figure 3 、 Figure 4 As shown, in this embodiment, the connecting rod structure 4 includes a first connecting rod 41 and a second connecting rod 42. The first connecting rod 41 and the second connecting rod 42 are both in the form of long strips. The middle parts of the first connecting rod 41 and the second connecting rod 42 are hinged to the machine base 1. The rear end of the first connecting rod 41 is hinged to the top of the pull rod 2. The top of the push rod 5 has a push hole 51. The front end of the second connecting rod 42 is bent into a U shape. One side of the U-shaped front end of the second connecting rod 42 is embedded in the push hole 51 so that the second connecting rod 42 is hinged to the push rod 5. The front end of the first connecting rod 41 has a strip hole 43, and the rear end of the second connecting rod 42 is fixedly connected with a hinge shaft 44. The hinge shaft 44 is passed through the strip hole 43 and the hinge shaft 44 can move along the length direction of the strip hole 43 so that the front end of the first connecting rod 41 and the rear end of the second connecting rod 42 are hinged, and the front end of the first connecting rod 41 and the rear end of the second connecting rod 42 are in contact with each other. In actual production, the front end of the first connecting rod 41 can be fixedly connected with the hinge shaft 44, and the rear end of the second connecting rod 42 can have a strip hole 43.

[0029] The sensor 3 is fixedly connected to the rear end of the base 1. The pull rod 2 has a protruding sensing portion. The sensor 3 can sense the position of the sensing portion and thus determine the position of the pull rod 2. The base 1 has a downwardly recessed avoidance groove 11, which is located directly below the hinge of the first connecting rod 41 and the second connecting rod 42. The base 1 has an upwardly protruding abutment platform 12. The abutment platform 12 is located between the middle of the first connecting rod 41 and the hinge point of the base 1 and the pull rod 2. The top surface of the abutment platform 12 is tilted downward along the front-to-back direction of the base 1, and the first connecting rod 41 can abut against the top surface of the abutment platform 12.

[0030] The rotating frame 6 is rotatably mounted within the machine base 1. In this embodiment, the rotating frame 6 includes three upper mounting arms 61 at the top for mounting the upper mold 7 and three lower mounting arms 62 at the bottom for mounting the lower mold 8. All upper mounting arms 61 are evenly spaced, and all lower mounting arms 62 are evenly spaced. In actual production, the number of upper mounting arms 61 and lower mounting arms 62 can be two or six. Each upper mounting arm 61 is penetrated by a protective rod 9 that can be elastically reset. The protective rod 9 is arranged in a vertical direction, and the upper mold 7, lower mold 8, and protective rod 9 are provided one-to-one. Specifically, each upper mounting arm 61 has a penetrating protective hole 611, and the top of the protective hole 611 has an inwardly indented and annular abutment portion 612. The push rod 5 can pass through the abutment portion 612 and extend into the protective hole 611. The top of the protective rod 9 is passed through the protective hole 611. The bottom end of the protective rod 9 is located below the upper mounting arm 61 and is fixedly connected to the protective ring 10. A spring 13 is provided on the outer sleeve of the protective rod 9. Under the action of the elastic force of the spring 13, the protective rod 9 always has a tendency to move upward and abut against the abutment portion 612.

[0031] During operation, the pull rod 2 is pulled downward, and the pull rod 2 moves downward through the connecting rod structure 4 to drive the push rod 5 downward. The bottom end of the push rod 5 extends into the protective hole 611 and overcomes the elastic force of the spring 13 to move the protective rod 9 downward, thereby moving the protective ring 10. When the protective ring 10 is not blocked by fingers, the protective ring 10 moves into place. The sensor 3 senses that the pull rod 2 has moved into place, and the button sewing machine starts working. The upper mold 7 moves downward to cooperate with the lower mold 8 to complete the button sewing. The pull rod 2 is reset, and the pull rod 2 drives the push rod 5 to reset through the connecting rod structure 4. The spring 13 resets the protective rod 9 under the action of the elastic force. After completing one button sewing, the rotating frame is rotated to move the next set of upper molds 7 and lower molds 8 to the working position. The above steps are repeated to complete the button sewing of multiple different buttons.

[0032] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0033] Although this document frequently uses terms such as base 1, pull rod 2, sensor 3, connecting rod structure 4, first connecting rod 41, second connecting rod 42, strip hole 43, hinge shaft 44, push rod 5, push hole 51, rotating frame 6, upper mounting arm 61, protective hole 611, abutment portion 612, lower mounting arm 62, upper die 7, lower die 8, protective rod 9, protective ring 10, avoidance groove 11, abutment platform 12, spring 13, housing 14, and control panel 15, the possibility of using other terms is not excluded. The use of these terms is merely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A button sewing machine, comprising a machine base (1), a pull rod (2) passing through the machine base (1), and a sensor (3) capable of sensing the position of the pull rod (2), characterized in that: The button sewing machine also includes a connecting rod structure (4) located in the machine base (1), a pushing rod (5) passed through the machine base (1) and a rotating frame (6) rotatably arranged in the machine base (1), the rotating frame (6) including a plurality of upper mounting arms (61) located at the top for mounting an upper mold (7) and a plurality of lower mounting arms (62) located at the bottom for mounting a lower mold (8), each of the upper mounting arms (61) is passed through a protective rod (9) capable of elastic reset, the bottom end of the protective rod (9) is located below the upper mounting arm (61) and is fixedly connected to a protective ring (10), the movement of the pull rod (2) can drive the pushing rod (5) to move through the connecting rod structure (4), and the movement of the pushing rod (5) can drive the protective rod (9) to move.

2. A button sewing machine according to claim 1, characterized in that: The connecting rod structure (4) includes a first connecting rod (41) and a second connecting rod (42), the middle parts of the first connecting rod (41) and the second connecting rod (42) are hinged to the machine base (1), the rear end of the first connecting rod (41) is hinged to the top end of the pull rod (2), and the front end of the second connecting rod (42) is hinged to the top end of the push rod (5), the front end of the first connecting rod (41) has a strip hole (43), and the rear end of the second connecting rod (42) is fixedly connected with a hinge shaft (44), the hinge shaft (44) is inserted into the strip hole (43) and the hinge shaft (44) can move along the length direction of the strip hole (43) so that the front end of the first connecting rod (41) and the rear end of the second connecting rod (42) are hinged.

3. A button sewing machine according to claim 1, characterized in that: The connecting rod structure (4) includes a first connecting rod (41) and a second connecting rod (42), the middle parts of the first connecting rod (41) and the second connecting rod (42) are hinged to the machine base (1), the rear end of the first connecting rod (41) is hinged to the top end of the pull rod (2), and the front end of the second connecting rod (42) is hinged to the top end of the push rod (5), the front end of the first connecting rod (41) is fixedly connected with a hinge shaft (44), and the rear end of the second connecting rod (42) has a strip hole (43), the hinge shaft (44) is inserted into the strip hole (43) and the hinge shaft (44) can move along the length direction of the strip hole (43) so that the front end of the first connecting rod (41) and the rear end of the second connecting rod (42) are hinged.

4. A button sewing machine according to claim 2 or 3, characterized in that: The machine base (1) has a downwardly recessed avoidance groove (11), and the avoidance groove (11) is located directly below the hinge point of the first connecting rod (41) and the second connecting rod (42).

5. A button sewing machine according to claim 2 or 3, characterized in that: The top of the pushing rod (5) is provided with a pushing hole (51), the front end of the second connecting rod (42) is bent into a U shape, and one side of the U-shaped front end of the second connecting rod (42) is embedded in the pushing hole (51) so that the second connecting rod (42) is hinged to the pushing rod (5).

6. A button sewing machine according to claim 2 or 3, characterized in that: The machine base (1) has an upwardly protruding abutment platform (12), which is located between the middle of the first connecting rod (41), the hinge point of the machine base (1) and the pull rod (2), and the top surface of the abutment platform (12) is tilted downward along the front-back direction of the machine base (1), and the first connecting rod (41) can abut against the top surface of the abutment platform (12).

7. A button sewing machine according to claim 2 or 3, characterized in that: The first connecting rod (41) and the second connecting rod (42) are both in the shape of long strips, and the front end of the first connecting rod (41) and the rear end of the second connecting rod (42) are in contact with each other.

8. A button sewing machine according to claim 1, 2 or 3, characterized in that: Each of the upper mounting arms (61) has a penetrating protective hole (611), and the top of the protective hole (611) has an inwardly indented and annular abutting portion (612), and the push rod (5) can pass through the abutting portion (612) and extend into the protective hole (611). The top of the protective rod (9) is inserted into the protective hole (611), and a spring (13) is provided on the outer sleeve of the protective rod (9). Under the action of the elastic force of the spring (13), the protective rod (9) always has a tendency to move upward and abut against the abutting portion (612).

9. A button sewing machine according to claim 1, 2 or 3, characterized in that: The pull rod (2), the push rod (5) and the protection rod (9) are all arranged in a vertical direction, and the protection rod (9) can be located directly below the push rod (5).

10. A button sewing machine according to claim 1, 2 or 3, characterized in that: The top of the machine base (1) is fixedly connected to a housing (14), the connecting rod structure (4) is located in the housing (14), and a control panel (15) is provided directly in front of the housing (14).

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