CN214400956U - Transmission mechanism of upper shaft and lower shaft of sewing machine - Google Patents

Transmission mechanism of upper shaft and lower shaft of sewing machine Download PDF

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Publication number
CN214400956U
CN214400956U CN202120247221.4U CN202120247221U CN214400956U CN 214400956 U CN214400956 U CN 214400956U CN 202120247221 U CN202120247221 U CN 202120247221U CN 214400956 U CN214400956 U CN 214400956U
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China
Prior art keywords
sewing machine
split body
split
shaft
lower shaft
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Application number
CN202120247221.4U
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Chinese (zh)
Inventor
虞峥荣
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Bullmer Electromechanical Technology Co Ltd
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Bullmer Electromechanical Technology Co Ltd
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Priority to CN202120247221.4U priority Critical patent/CN214400956U/en
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Abstract

The utility model provides a drive mechanism of upper and lower axle of sewing machine belongs to sewing machine technical field. It has solved the loaded down with trivial details problem of its hold-in range of current drive mechanism change. This drive mechanism of sewing machine upper and lower axle, including upper shaft, lower axle and the hold-in range of connecting upper shaft and lower axle, its characterized in that: the lower shaft comprises a first split arranged on the sewing machine shell and a second split detachably and fixedly connected with the first split, the second split is arranged close to one side of the synchronous belt, and the length of the first split is larger than that of the second split. The utility model has the advantages of convenient and fast disassembly and assembly.

Description

Transmission mechanism of upper shaft and lower shaft of sewing machine
Technical Field
The utility model belongs to the technical field of make up equipment, a sewing machine is related to, especially a transmission of sewing machine upper and lower axle.
Background
A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient.
Chinese patent (publication No. CN205099911U, published as 2016.03.23) discloses a direct-drive integrated wrist bending machine, which comprises an upper shaft, a lower shaft, an upper synchronous pulley, a lower synchronous pulley and a direct-drive motor, wherein the upper shaft is rotatably supported in a machine head, the lower shaft is rotatably supported in a base, the upper synchronous pulley is fixed on the upper shaft, the lower synchronous pulley is fixed on the lower shaft, the direct-drive motor is used for driving the lower shaft to rotate, the upper synchronous pulley is connected with the lower synchronous pulley through a synchronous belt, the direct-drive motor is fixed on the base, and at least one supporting element is respectively arranged on each of two end sides of the lower synchronous pulley of the lower shaft. Lower shaft formula structure as an organic whole in this scheme, after sewing machine through a period of high-speed operation, the problem of fatigue failure can appear in the hold-in range of connecting upper shaft and lower shaft, need demolish whole lower shaft so that change the hold-in range this moment, whole change process involves the removal of lower shaft, the installation of lower shaft and the debugging again of sewing machine, and the operation is very inconvenient, and work load is big, increases operation workman intensity of labour on foot.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem and providing a transmission mechanism of an upper shaft and a lower shaft of a sewing machine.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides a drive mechanism of upper and lower axle of sewing machine, includes upper shaft, lower shaft and connects the hold-in range of upper shaft and lower shaft which characterized in that: the lower shaft comprises a first split arranged on the sewing machine shell and a second split detachably and fixedly connected with the first split, the second split is arranged close to one side of the synchronous belt, and the length of the first split is larger than that of the second split.
In the transmission mechanism of the upper shaft and the lower shaft of the sewing machine, one end of the first split body is rotatably connected with the sewing machine shell, the other end of the first split body is fixedly connected with one end of the second split body through the synchronous belt wheel, and the other end of the second split body is rotatably connected with the sewing machine shell.
In the transmission mechanism of the upper shaft and the lower shaft of the sewing machine, the synchronous belt wheel is fixedly connected with the first split body and the second split body respectively through 2 screws, so that the first split body is fixedly connected with the second split body.
In the transmission mechanism of the upper shaft and the lower shaft of the sewing machine, one end of the first split body is rotatably connected with the sewing machine shell, the other end of the first split body is fixedly connected with one end of the second split body through the coupler, the other end of the second split body is rotatably connected with the sewing machine shell, and the second split body is provided with the synchronous belt pulley.
In the transmission mechanism for the upper shaft and the lower shaft of the sewing machine, the length of the first split is 5-7 times that of the second split.
In the transmission mechanism for the upper shaft and the lower shaft of the sewing machine, the synchronous belt is arranged on the synchronous belt wheel.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a split type lower shaft reduces the part of changing the required demolition of hold-in range, saves the change time of hold-in range.
2. The utility model provides a split type lower shaft is shorter than current integral lower shaft, and not only simple process, processing are convenient, have reduced the assembly required precision moreover.
3. The utility model discloses a synchronous pulley can realize that the quick installation of split type lower shaft is fixed, and fixed effect is good, connects stably.
Drawings
Fig. 1 is a schematic view of the installation position of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic structural view of the middle lower shaft of the present invention.
In the figure, 1, an upper shaft; 2. a lower shaft; 21. a first split body; 22. a second body; 3. a sewing machine housing; 4. a synchronous belt; 5. a synchronous pulley.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in figure 1, the transmission mechanism of the upper shaft and the lower shaft of the sewing machine comprises an upper shaft 1, a lower shaft 2 and a synchronous belt 4 for connecting the upper shaft 1 and the lower shaft 2, wherein the lower shaft 2 comprises a first split body 21 arranged on a machine shell 3 of the sewing machine and a second split body 22 detachably and fixedly connected with the first split body 21, and the second split body 22 is arranged on one side close to the synchronous belt 4. The utility model discloses a split type lower shaft when needs are changed hold-in range 4, keeps first components of a whole that can function independently 21 motionless, demolishs second components of a whole that can function independently 22 and can change hold-in range 4, and this mode has effectively reduced the part of changing the required demolition of hold-in range, saves the change time of hold-in range. The length of the first sub-body 21 is greater than that of the second sub-body 22, and preferably, in the embodiment, the length of the first sub-body 21 is 5 to 7 times that of the second sub-body 22. The utility model provides a split type lower shaft is shorter than current integral lower shaft, and not only simple process, processing are convenient, have reduced the assembly required precision moreover.
Specifically, one end of the first split body 21 is rotatably connected with the sewing machine housing 3, the other end of the first split body 21 is fixedly connected with one end of the second split body 22 through the synchronous pulley 5, and the other end of the second split body 22 is rotatably connected with the sewing machine housing 3. The synchronous belt 4 is installed on the synchronous belt wheel 5, and the synchronous belt wheel 5 is fixedly connected with the first split body 21 and the second split body 22 through 2 screws respectively, so that the first split body 21 is fixedly connected with the second split body 22. The utility model discloses a synchronous pulley can realize that the quick installation of split type lower shaft is fixed, and fixed effect is good, connects stably.
In the above, the synchronous pulley 5 is used to fixedly connect the first split body 21 and the second split body 22, and only 2 set screws are required to be added, and no additional parts are required to be added. In addition, the two-way belt can also be connected by a coupler, namely, one end of the first split body 21 is rotatably connected with the sewing machine shell 3, the other end of the first split body 21 is fixedly connected with one end of the second split body 22 through the coupler, the other end of the second split body 22 is rotatably connected with the sewing machine shell 3, the second split body 22 is provided with a synchronous pulley 5, and the synchronous pulley 5 is provided with a synchronous belt 4.
The utility model discloses a split type lower shaft, the part that will not necessarily demolish and the part that must demolish separately install on first components of a whole that can function independently and second components of a whole that can function independently to realize the quick replacement of hold-in range.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms lower shaft 2, first body 21, second body 22, timing belt 4, timing pulley 5, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (6)

1. The utility model provides a drive mechanism of upper and lower axle of sewing machine, includes upper shaft (1), lower shaft (2) and connects hold-in range (4) of upper shaft (1) and lower shaft (2), its characterized in that: the lower shaft (2) comprises a first split body (21) arranged on the sewing machine shell (3) and a second split body (22) detachably and fixedly connected with the first split body (21), the second split body (22) is arranged close to one side of the synchronous belt (4), and the length of the first split body (21) is larger than that of the second split body (22).
2. The transmission mechanism of upper and lower shafts of sewing machine according to claim 1, characterized in that: one end of the first split body (21) is rotatably connected with the sewing machine shell (3), the other end of the first split body (21) is fixedly connected with one end of the second split body (22) through a synchronous belt wheel (5), and the other end of the second split body (22) is rotatably connected with the sewing machine shell (3).
3. The transmission mechanism for upper and lower shafts of a sewing machine according to claim 2, characterized in that: the synchronous belt wheel (5) is fixedly connected with the first split body (21) and the second split body (22) through 2 screws respectively, so that the first split body (21) and the second split body (22) are fixedly connected.
4. The transmission mechanism of upper and lower shafts of sewing machine according to claim 1, characterized in that: one end of the first split body (21) is rotatably connected with the sewing machine shell (3), the other end of the first split body (21) is fixedly connected with one end of the second split body (22) through a coupler, the other end of the second split body (22) is rotatably connected with the sewing machine shell (3), and the second split body (22) is provided with a synchronous belt wheel (5).
5. The transmission mechanism of upper and lower shafts of a sewing machine according to claim 3 or 4, characterized in that: the length of the first split body (21) is 5-7 times that of the second split body (22).
6. The transmission mechanism for upper and lower shafts of a sewing machine according to claim 5, characterized in that: the synchronous belt (4) is installed on the synchronous belt wheel (5).
CN202120247221.4U 2021-01-28 2021-01-28 Transmission mechanism of upper shaft and lower shaft of sewing machine Active CN214400956U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120247221.4U CN214400956U (en) 2021-01-28 2021-01-28 Transmission mechanism of upper shaft and lower shaft of sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120247221.4U CN214400956U (en) 2021-01-28 2021-01-28 Transmission mechanism of upper shaft and lower shaft of sewing machine

Publications (1)

Publication Number Publication Date
CN214400956U true CN214400956U (en) 2021-10-15

Family

ID=78019328

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120247221.4U Active CN214400956U (en) 2021-01-28 2021-01-28 Transmission mechanism of upper shaft and lower shaft of sewing machine

Country Status (1)

Country Link
CN (1) CN214400956U (en)

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