360-degree rotating sewing machine swing arm device

Abstract

The utility model relates to the technical field of sewing machine swing arms, and discloses a 360-degree rotating sewing machine swing arm device which comprises a workbench, a swing arm body, a first transmission mechanism, a second transmission mechanism and a driving mechanism. A fixed seat is arranged on the workbench; the swing arm main body is rotationally connected to the fixed seat; a needle plate head assembly and a rotating shuttle assembly are arranged on the swing arm main body; the first transmission mechanism is arranged in the swing arm main body, is rotationally connected with the needle plate head assembly and is used for driving the needle plate head assembly to rotate; the second transmission mechanism is arranged in the swing arm body and located on the inner side of the first transmission mechanism. The second transmission mechanism is rotationally connected with the rotating shuttle assembly and is used for driving the rotating shuttle assembly to rotate; the driving mechanism is arranged in the fixing base, connected with the second transmission mechanism and used for driving the second transmission mechanism to rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machine swing arms, in particular to a 360-degree rotating sewing machine swing arm device. Background Art

[0002] As an important part of sewing machines and other equipment, sewing machines are widely used in sewing patterns of various handbags, clothing, textiles, leather goods, bags, shoes, belts, sports and leisure equipment, etc. Sewing machines are machines dedicated to industrial sewing. Their working process can be seen as the interlacing of needles and threads, creating seams on the constantly moving fabric, realizing a precise sewing process, and improving production efficiency and sewing quality.

[0003] At present, most sewing machines use a column structure as the workbench. The sewing product is placed on the surface of the column structure. The worker continuously rotates the sewing product to complete the pattern sewing or hemming of the product. However, the processing efficiency of the existing sewing machine is low, and the sewing angle of the product is manually adjusted, and the adjustment steps are complicated, time-consuming and laborious.

[0004] Therefore, a 360-degree rotating sewing machine swing arm device is urgently needed to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of the utility model is to provide a 360-degree rotating sewing machine swing arm device to solve the problems of low processing efficiency of existing sewing machines, manual adjustment of the sewing angle of the product, complicated adjustment steps, and time-consuming and laborious.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A 360-degree rotating sewing machine swing arm device comprises a workbench, a swing arm body, a first transmission mechanism, a second transmission mechanism and a driving mechanism; a fixed seat is provided on the workbench; the swing arm body is rotatably connected to the fixed seat; a needle plate head assembly and a rotary shuttle assembly are provided on the swing arm body; the first transmission mechanism is arranged in the swing arm body and is rotatably connected to the needle plate head assembly, and is used to drive the needle plate head assembly to rotate; the second transmission mechanism is arranged in the swing arm body and is located on the inner side of the first transmission mechanism; the second transmission mechanism is rotatably connected to the rotary shuttle assembly, and is used to drive the rotary shuttle assembly to rotate; the driving mechanism is arranged in the fixed seat and is connected to the second transmission mechanism, and is used to drive the second transmission mechanism to rotate.

[0008] As a preferred solution of a 360-degree rotating sewing machine swing arm device, the swing arm body includes an upper arm, a connecting part and a lower arm; the lower arm is arranged on the fixed seat, and the lower arm is connected to the connecting part; the connecting part is connected to the upper arm; the upper arm is rotatably connected to the needle plate head assembly and the rotary shuttle assembly respectively, and the rotary shuttle assembly is rotatably connected to the needle plate head assembly.

[0009] As a preferred solution of a 360-degree rotating sewing machine swing arm device, the first transmission mechanism includes a first belt transmission assembly and a first gear transmission assembly; the first belt transmission assembly is arranged in the lower arm, and the first belt transmission assembly is rotatably connected to the fixed seat through a rotating seat; the first gear transmission assembly is arranged in the upper arm and connected to the needle plate head assembly; the first belt transmission assembly and the gear transmission assembly are connected through a first transmission shaft, and the first transmission shaft is located in the connecting part.

[0010] As a preferred solution of a 360-degree rotating sewing machine swing arm device, the first gear transmission assembly includes multiple groups of first gears connected in end-to-end meshing; multiple groups of the first gears are arranged in parallel on the top surface of the upper arm;

[0011] The first belt transmission assembly includes a first belt and two groups of first transmission wheels; the two groups of the first transmission wheels are respectively arranged on the rotating seat and the first transmission shaft; the two groups of the first transmission wheels are connected by a first belt.

[0012] As a preferred solution of a 360-degree rotating sewing machine swing arm device, the second transmission mechanism includes a second belt transmission assembly and a second gear transmission assembly; the second belt transmission assembly is arranged in the lower arm and connected to the driving mechanism; the second gear transmission assembly is arranged in the upper arm and connected to the rotary hook assembly; the second belt transmission assembly and the gear transmission assembly are connected through a second transmission shaft, and the second transmission shaft is located in the connecting portion;

[0013] The second belt transmission assembly is arranged above the first belt transmission assembly; the second gear transmission assembly is arranged below the first gear transmission assembly.

[0014] As a preferred solution of a 360-degree rotating sewing machine swing arm device, the second gear transmission assembly includes multiple sets of second gears connected in end-to-end meshing; multiple sets of the second gears are arranged in parallel on the bottom surface of the upper arm;

[0015] The second belt transmission assembly includes a second belt and two sets of second transmission wheels; the two sets of second transmission wheels are respectively arranged on the driving mechanism and the second transmission shaft; the two sets of second transmission wheels are connected by a second belt.

[0016] As a preferred solution of a 360-degree rotating sewing machine swing arm device, the driving mechanism includes a third transmission shaft; the third transmission shaft is rotatably connected in the fixed seat, and one end of the third transmission shaft is connected to the second transmission mechanism.

[0017] As a preferred solution for a 360-degree rotating sewing machine swing arm device, the needle plate head assembly includes a needle plate seat, a needle plate and a needle plate cover; the needle plate seat is rotatably connected to the swing arm body and is rotatably connected to the first transmission mechanism; the needle plate is arranged on the swing arm body, and one end of the needle plate is inserted through the top of the needle plate seat; the needle plate cover is fixed to the top of the needle plate seat.

[0018] As a preferred solution of a 360-degree rotating sewing machine swing arm device, the rotary hook assembly includes a thread hook, a bobbin, a bobbin case and a third gear; the third gear is arranged on the swing arm body and is located below the needle plate seat; the thread hook is rotatably connected to the needle plate seat and is located above the third gear; the bobbin is arranged in the thread hook; and the bobbin case is arranged on the bobbin.

[0019] As a preferred solution for a 360-degree rotating sewing machine swing arm device, the third gear is provided with a connecting plate extending upward; a slot is provided on one side of the thread hook; the connecting plate is inserted into the slot, and one side of the connecting plate is in conflict with the slot.

[0020] The beneficial effects of the utility model are:

[0021] By setting the swing arm main body, the second transmission mechanism and the needle plate head assembly, during the sewing process, when it is necessary to adjust the sewing angle of the product, the staff rotates the working angle of the swing arm main body, and under the action of the second transmission mechanism and the needle plate head assembly, the needle plate head assembly maintains its position unchanged, while the swing arm main body adjusts the angle of the product under the action of the second transmission mechanism, thereby simplifying the adjustment steps, facilitating the staff's operation, and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a 360-degree rotating sewing machine swing arm device provided by the utility model;

[0023] Figure 2 This is a schematic diagram of the exploded structure of a 360-degree rotating sewing machine swing arm device provided by the utility model;

[0024] Figure 3 A partial structural schematic diagram of a 360-degree rotating sewing machine swing arm device provided by the utility model;

[0025] Figure 4 The overall structural diagram of the driving mechanism provided by the utility model;

[0026] Figure 5 It is a schematic diagram of the exploded structure of the needle plate head assembly and the rotary hook assembly provided by the utility model;

[0027] Figure 6 The utility model is a schematic diagram of the overall structure of the rotary hook assembly.

[0028] Among them, the reference numerals in the figure are:

[0029] 10. Workbench; 11. Fixed seat; 12. Rotating seat; 20. Swing arm body; 201. Upper arm; 202. Connecting part; 203. Lower arm; 30. Needle plate head assembly; 31. Needle plate seat; 32. Needle plate; 33. Needle plate cover; 40. Rotary shuttle assembly; 41. Thread hook; 42. Bobbin; 43. Bobbin case; 44. Third gear; 45. Connecting plate; 51. First belt transmission assembly; 52. First gear transmission assembly; 53. First transmission shaft; 61. Second belt transmission assembly; 62. Second gear transmission assembly; 63. Second transmission shaft; 70. Driving mechanism; 71. Third transmission shaft. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present utility model.

[0034] In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more than two. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0035] In one embodiment of the present invention, Figure 1-6 As shown, a 360-degree rotating sewing machine swing arm device is provided, including a workbench 10, a swing arm body 20, a first transmission mechanism, a second transmission mechanism and a driving mechanism 70. A fixed seat 11 is provided on the workbench 10. The swing arm body 20 is rotatably connected to the fixed seat 11. A needle plate head assembly 30 and a rotary shuttle assembly 40 are provided on the swing arm body 20. The first transmission mechanism is arranged in the swing arm body 20, and is rotatably connected to the needle plate head assembly 30, and is used to drive the needle plate head assembly 30 to rotate. The second transmission mechanism is arranged in the swing arm body 20, and is located on the inner side of the first transmission mechanism. The second transmission mechanism is rotatably connected to the rotary shuttle assembly 40, and is used to drive the rotary shuttle assembly 40 to rotate. The driving mechanism 70 is arranged in the fixed seat 11, and is connected to the second transmission mechanism, and is used to drive the second transmission mechanism to rotate.

[0036] By setting the swing arm body 20, the second transmission mechanism and the needle plate head assembly 30, during the sewing process, when it is necessary to adjust the sewing angle of the product, the staff rotates the working angle of the swing arm body 20, and under the action of the second transmission mechanism and the needle plate head assembly 30, the needle plate head assembly 30 maintains its position unchanged, and the swing arm body 20 adjusts the angle of the product under the action of the second transmission mechanism, thereby simplifying the adjustment steps, facilitating the staff's operation, and improving processing efficiency.

[0037] Preferably, the swing arm body 20 includes an upper arm 201, a connecting portion 202 and a lower arm 203. The lower arm 203 is disposed on the fixed seat 11, and the lower arm 203 is connected to the connecting portion 202. The connecting portion 202 is connected to the upper arm 201. The upper arm 201 is rotatably connected to the needle plate head assembly 30 and the rotary shuttle assembly 40, respectively, and the rotary shuttle assembly 40 is rotatably connected to the needle plate head assembly 30. During the sewing process, when it is necessary to adjust the sewing angle of the product, the staff rotates the working angle of the swing arm body 20, and under the action of the second transmission mechanism and the needle plate head assembly 30, the needle plate head assembly 30 maintains a constant position relative to the swing arm body 20, and the swing arm body 20 adjusts the angle of the product under the action of the second transmission mechanism, thereby simplifying the adjustment steps, facilitating the operation of the staff, and improving the processing efficiency.

[0038] Specifically, the first transmission mechanism includes a first belt transmission assembly 51 and a first gear transmission assembly 52. ​​The first belt transmission assembly 51 is arranged in the lower arm 203, and the first belt transmission assembly 51 is rotatably connected to the fixed seat 11 through the rotating seat 12. The first gear transmission assembly 52 is arranged in the upper arm 201 and connected to the needle plate head assembly 30. The first belt transmission assembly 51 and the gear transmission assembly are connected through the first transmission shaft 53, and the first transmission shaft 53 is located in the connecting part 202. When adjusting the product angle, the swing arm body 20 is rotated, and the first belt transmission assembly 51 drives the first transmission shaft 53 to rotate, and the first transmission shaft 53 drives the first gear transmission assembly 52 to rotate, so that the needle plate head assembly 30 also rotates, and then the position of the needle plate head assembly 30 relative to the swing arm body 20 remains unchanged, thereby adjusting the angle of the product, simplifying the adjustment steps, facilitating the operation of the staff, and improving the processing efficiency.

[0039] Furthermore, the first gear transmission assembly 52 includes a plurality of groups of first gears meshed end to end. The plurality of groups of first gears are arranged in parallel on the top surface of the upper arm 201. The first gear near one end of the needle plate head assembly 30 is meshed with the needle plate head assembly 30, and the first gear near one end of the first transmission shaft 53 is meshed with the first transmission shaft 53.

[0040] The first belt transmission assembly 51 includes a first belt and two sets of first transmission wheels. The two sets of first transmission wheels are respectively arranged on the rotating seat 12 and the first transmission shaft 53. The two sets of first transmission wheels are connected by a first belt.

[0041] By rotating the swing arm body 20, the lower arm 203, under the action of the first belt and the two sets of first transmission wheels, causes the first transmission shaft 53 to rotate, and drives multiple sets of first gears to engage and transmit, thereby driving the needle plate head assembly 30 to rotate. Moreover, through the meshing connection of multiple sets of first gears, the transmission efficiency of the first gear transmission assembly 52 is higher, and its service life is longer, thereby improving the processing efficiency.

[0042] Specifically, the second transmission mechanism includes a second belt transmission assembly 61 and a second gear transmission assembly 62. The second belt transmission assembly 61 is disposed in the lower arm 203 and connected to the driving mechanism 70. The second gear transmission assembly 62 is disposed in the upper arm 201 and connected to the rotary hook assembly 40. The second belt transmission assembly 61 and the gear transmission assembly are connected via a second transmission shaft 63, and the second transmission shaft 63 is located in the connecting portion 202.

[0043] The second belt transmission assembly 61 is disposed above the first belt transmission assembly 51. The second gear transmission assembly 62 is disposed below the first gear transmission assembly.

[0044] When the driving mechanism 70 rotates, it drives the second belt transmission assembly 61 to drive the second transmission shaft 63 to rotate, and the second transmission shaft 63 drives the second gear transmission assembly 62 to rotate, so that the rotary hook assembly 40 also rotates, thereby controlling and adjusting the movement trajectory of the sewing machine.

[0045] Furthermore, the second gear transmission assembly 62 includes a plurality of sets of second gears that are meshed end to end and arranged in parallel on the bottom surface of the upper arm 201 .

[0046] The second belt transmission assembly 61 includes a second belt and two sets of second transmission wheels. The two sets of second transmission wheels are respectively arranged on the driving mechanism 70 and the second transmission shaft 63. The two sets of second transmission wheels are connected by a second belt.

[0047] When the driving mechanism 70 rotates, the lower arm 203, under the action of the second belt and the two sets of second transmission wheels, causes the second transmission shaft 63 to rotate, and drives multiple sets of second gears to engage and transmit, thereby driving the rotary shuttle assembly 40 to rotate. Moreover, through the meshing connection of multiple sets of second gears, the transmission efficiency of the second gear transmission assembly 62 is higher, and its service life is longer, thereby improving the processing efficiency.

[0048] Preferably, the driving mechanism 70 includes a third transmission shaft 71. The third transmission shaft 71 is rotatably connected to the fixing seat 11, and one end of the third transmission shaft 71 is connected to the second transmission mechanism. In this embodiment, the third transmission shaft 71 in the driving mechanism 70 is connected to the transmission mechanism of the sewing machine, and then the third transmission shaft 71 is driven by the transmission mechanism of the sewing machine, and then the third transmission shaft 71 drives the second transmission mechanism to rotate, so that the rotary shuttle assembly 40 rotates, and compared with the traditional conveyor belt transmission mechanism, the second transmission mechanism is connected to the rotary shuttle assembly 40 by gear meshing, so that the structure of the upper arm 201 is more compact, and a smaller size of the thread hook 41 can be used for work, thereby increasing the rotation speed of the rotary shuttle assembly 40 and improving the processing efficiency.

[0049] Preferably, the needle plate head assembly 30 includes a needle plate seat 31, a needle plate 32 and a needle plate cover 33. The needle plate seat 31 is rotatably connected to the swing arm body 20, and is rotatably connected to the first transmission mechanism. The needle plate 32 is arranged on the swing arm body 20, and one end of the needle plate 32 is inserted through the top of the needle plate seat 31. The needle plate cover 33 is fixed to the top of the needle plate seat 31. When the swing arm body 20 rotates, the needle plate seat 31 is driven to rotate by the first transmission mechanism, so that the positions of the needle plate seat 31 and the needle plate cover 33 remain unchanged relative to the swing arm body 20, thereby adjusting the angle of the product, simplifying the adjustment steps, facilitating the operation of the staff, and improving the processing efficiency.

[0050] Specifically, the rotary hook assembly 40 includes a thread hook 41, a bobbin 42, a bobbin case 43 and a third gear 44. The third gear 44 is disposed on the swing arm body 20 and is located below the needle plate seat 31. The thread hook 41 is rotatably connected to the needle plate seat 31 and is located above the third gear 44. The bobbin 42 is disposed in the thread hook 41. The bobbin case 43 is disposed on the bobbin 42.

[0051] The third gear 44 is provided with a connecting plate 45 extending upward. A slot is provided on one side of the thread hooking device 41. The connecting plate 45 is inserted into the slot, and one side of the connecting plate 45 conflicts with the slot.

[0052] In this embodiment, compared with the traditional conveyor belt transmission mechanism, the second transmission mechanism is connected to the third gear 44 by gear meshing, so that the structure of the upper arm 201 is more compact, and a smaller-sized thread hook 41 can be used to work, thereby increasing the rotation speed of the shuttle assembly 40 and improving processing efficiency.

[0053] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A 360-degree rotating sewing machine swing arm device, characterized in that: include: A workbench, wherein a fixed seat is provided on the workbench; A swing arm body, the swing arm body is rotatably connected to the fixed seat; the swing arm body is provided with a needle plate head assembly and a rotary hook assembly; A first transmission mechanism, which is disposed in the swing arm body and is rotatably connected to the needle plate head assembly to drive the needle plate head assembly to rotate; a second transmission mechanism, the second transmission mechanism being arranged in the swing arm body and located inside the first transmission mechanism; the second transmission mechanism being rotationally connected to the rotary hook assembly and being used for driving the rotary hook assembly to rotate; A driving mechanism is disposed in the fixing seat and connected to the second transmission mechanism, and is used for driving the second transmission mechanism to rotate.

2. A 360-degree rotating sewing machine swing arm device according to claim 1, characterized in that: The swing arm body includes an upper arm, a connecting part and a lower arm; the lower arm is arranged on the fixed seat, and the lower arm is connected to the connecting part; the connecting part is connected to the upper arm; the upper arm is rotatably connected to the needle plate head assembly and the rotary shuttle assembly respectively, and the rotary shuttle assembly is rotatably connected to the needle plate head assembly.

3. A 360-degree rotating sewing machine swing arm device according to claim 2, characterized in that: The first transmission mechanism includes a first belt transmission assembly and a first gear transmission assembly; the first belt transmission assembly is arranged in the lower arm, and the first belt transmission assembly is rotatably connected to the fixed seat through a rotating seat; the first gear transmission assembly is arranged in the upper arm and connected to the needle plate head assembly; the first belt transmission assembly and the gear transmission assembly are connected through a first transmission shaft, and the first transmission shaft is located in the connecting part.

4. A 360-degree rotating sewing machine swing arm device according to claim 3, characterized in that: The first gear transmission assembly includes a plurality of sets of first gears meshingly connected end to end; the plurality of sets of first gears are arranged in parallel on the top surface of the upper arm; The first belt transmission assembly includes a first belt and two groups of first transmission wheels; the two groups of the first transmission wheels are respectively arranged on the rotating seat and the first transmission shaft; the two groups of the first transmission wheels are connected by a first belt.

5. A 360-degree rotating sewing machine swing arm device according to claim 4, characterized in that: The second transmission mechanism includes a second belt transmission assembly and a second gear transmission assembly; the second belt transmission assembly is arranged in the lower arm and connected to the driving mechanism; the second gear transmission assembly is arranged in the upper arm and connected to the rotary hook assembly; the second belt transmission assembly and the gear transmission assembly are connected via a second transmission shaft, and the second transmission shaft is located in the connecting portion; The second belt transmission assembly is arranged above the first belt transmission assembly; the second gear transmission assembly is arranged below the first gear transmission assembly.

6. A 360-degree rotating sewing machine swing arm device according to claim 5, characterized in that: The second gear transmission assembly includes a plurality of sets of second gears that are meshed end to end; the plurality of sets of second gears are arranged in parallel on the bottom surface of the upper arm; The second belt transmission assembly includes a second belt and two sets of second transmission wheels; the two sets of second transmission wheels are respectively arranged on the driving mechanism and the second transmission shaft; the two sets of second transmission wheels are connected by a second belt.

7. The 360-degree rotating sewing machine swing arm device according to claim 1, characterized in that: The driving mechanism comprises a third transmission shaft; the third transmission shaft is rotatably connected in the fixing seat, and one end of the third transmission shaft is connected to the second transmission mechanism.

8. The 360-degree rotating sewing machine swing arm device according to claim 1, characterized in that: The needle plate head assembly includes a needle plate seat, a needle plate and a needle plate cover; the needle plate seat is rotatably connected to the swing arm body and is rotatably connected to the first transmission mechanism; the needle plate is arranged on the swing arm body, and one end of the needle plate is inserted through the top of the needle plate seat; the needle plate cover is fixed to the top of the needle plate seat.

9. A 360-degree rotating sewing machine swing arm device according to claim 8, characterized in that: The rotary hook assembly includes a thread hook, a bobbin, a bobbin case and a third gear; the third gear is arranged on the swing arm body and is located below the needle plate seat; the thread hook is rotatably connected in the needle plate seat and is located above the third gear; the bobbin is arranged in the thread hook; the bobbin case is arranged on the bobbin.

10. A 360-degree rotating sewing machine swing arm device according to claim 9, characterized in that: The third gear is provided with a connecting plate extending upward; one side of the thread hook is provided with a slot; the connecting plate is inserted into the slot, and one side of the connecting plate is in conflict with the slot.

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