CN210066158U - Gear transmission mechanism of double-needle upper surface sewing machine - Google Patents
Gear transmission mechanism of double-needle upper surface sewing machine Download PDFInfo
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- CN210066158U CN210066158U CN201920710523.3U CN201920710523U CN210066158U CN 210066158 U CN210066158 U CN 210066158U CN 201920710523 U CN201920710523 U CN 201920710523U CN 210066158 U CN210066158 U CN 210066158U
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Abstract
The utility model discloses a double needle group face sewing machine's gear drive, include: the sewing machine comprises a machine head body, a main shaft, a first gear, a second gear, a third gear, a fourth gear, a transverse feeding pattern cam and a longitudinal feeding pattern cam, wherein the main shaft is connected with a driving motor of a sewing machine, the first gear is fixed on the main shaft, the second gear is installed on a hub of the third gear and synchronously rotates with the third gear, the third gear is meshed with the first gear to form first-stage transmission, the fourth gear is meshed with the second gear to form second-stage transmission, and the total speed ratio of the first-stage transmission and the second-stage transmission is 1: and 6, the transverse feeding pattern cam and the longitudinal feeding pattern cam are respectively and fixedly arranged on the hubs of the fourth gear. In this way, the utility model discloses can sew up more abundant decoration style line or style line combination on the upper of a shoe, overall structure is reasonable compact simultaneously, and is with low costs.
Description
Technical Field
The utility model relates to a sewing machine technical field especially relates to a gear drive of two needle group face sewing machine.
Background
At present, with the increasing improvement of living standard of people, the beauty of vamps is continuously improved while pursuing comfort, pattern sewing is generated on uppers of casual shoes, so that double-needle vamp pattern sewing machines are produced in the market, and the pattern of the sewing machine is realized by combining a group of 1:4 pattern cams and a group of feeding cams. However, in the actual market demand, because the pattern requirements are more and more abundant, more combined patterns are often required, and the traditional double-needle upper pattern sewing machine is required to be operated to meet the personalized pattern sewing requirement, which becomes an impossible task.
In addition, another solution is also available in the market, i.e. a PLC automatic control system is applied to the sewing machine, but there are two points that prevent the market from accepting the automatic control sewing machine, one is that the cost is too expensive, and the other is that the technology is immature and the after-sales service cannot keep up.
In view of the above-mentioned prior art, there is a need for an improved transmission structure for a double needle upper pattern sewing machine, and for this purpose, the applicant has made an advantageous design, and the technical solutions described below have been made in the light of this background.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a double needle group face sewing machine's gear drive, through 1: the gear speed change transmission mechanism of 6 is matched with the feeding cam, more abundant decorative pattern lines or pattern line combinations can be sewn on the upper, and meanwhile, the whole structure is reasonable and compact, and the cost is low.
In order to solve the technical problem, the utility model discloses a technical scheme be: provides a gear transmission mechanism of a double-needle upper surface sewing machine, which comprises: the sewing machine comprises a machine head body, a main shaft, a first gear, a second gear, a third gear, a fourth gear, a transverse feeding pattern cam and a longitudinal feeding pattern cam, wherein one end of the main shaft is connected with a driving motor of a sewing machine, the other end of the main shaft is supported in the machine head body, the first gear is fixed on the main shaft and synchronously rotates with the main shaft, the second gear is installed on a hub of the third gear and synchronously rotates with the third gear, the third gear is installed in the machine head body through an upper supporting pin and is mutually meshed with the first gear to form first-stage transmission, the fourth gear is installed in the machine head body through a lower supporting pin and is mutually meshed with the second gear to form second-stage transmission, and the total speed ratio of the first-stage transmission to the second-stage transmission is 1: and 6, the transverse feeding pattern cam and the longitudinal feeding pattern cam are respectively and fixedly arranged on the hubs of the fourth gear.
In a preferred embodiment of the present invention, the gear ratio of the first gear is 25, the gear ratio of the second gear is 72, the gear ratio of the third gear is 90, and the gear ratio of the fourth gear is 120.
In a preferred embodiment of the present invention, the first shaft hole, the second shaft hole, and the third shaft hole are horizontally opened from top to bottom in the head body, the main shaft is supported in the first shaft hole, the shaft end of the upper supporting pin runs through the hub and the connecting end of the third gear are installed in the second shaft hole, and the shaft end of the lower supporting pin runs through the hub and the connecting end of the fourth gear and is fixed on the third shaft hole.
In a preferred embodiment of the present invention, a first bearing is installed in the hub of the third gear, and is connected to the shaft end of the upper supporting pin through the first bearing, and a second bearing is installed in the hub of the fourth gear, and is connected to the shaft end of the lower supporting pin through the second bearing.
In a preferred embodiment of the present invention, a first blocking piece for fixing the third gear is further installed on the shaft end of the upper supporting pin, and a second blocking piece for fixing the fourth gear is further installed on the shaft end of the lower supporting pin.
In a preferred embodiment of the present invention, a curved groove for connecting the transverse swing arm is formed on an end surface of the transverse feeding pattern cam, and a protruding head for connecting the longitudinal swing arm is integrally formed on a circumferential end surface of the longitudinal feeding pattern cam.
The utility model has the advantages that: the utility model discloses a second grade transmission structure that No. one gear, No. two gears, No. three gears, No. four gears are constituteed makes the total speed ratio of mechanism be 1: 6, more abundant decorative pattern lines or pattern line combinations can be sewn on the upper, which is beneficial to improving the appearance effect of the vamp and is suitable for the actual market demand; secondly, overall structure is compact, and is with low costs, and the operation is reliable and stable, and production efficiency is high, and the quality of vamp can effectively be guaranteed, and it is effectual to look at.
Drawings
FIG. 1 is a schematic structural view of a gear transmission mechanism of a double needle upper sewing machine according to the present invention;
FIG. 2 is a schematic view of a stitch pattern sewn by the mechanism of the present invention;
the parts in the drawings are numbered as follows: 1. the machine head body comprises a machine head body 100, a first shaft hole 200, a second shaft hole 300, a third shaft hole 2, a main shaft 3, a first gear, a second gear, a third gear, a fourth gear, a transverse feeding pattern cam 7, a curve groove 71, a curve groove 8, a longitudinal feeding pattern cam 81, a raised head 9, an upper supporting pin 10, a lower supporting pin 11, a first bearing 12, a second bearing 13, a first blocking piece 14, a second blocking piece 21, an upper 22 and stitches.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1, an embodiment of the present invention includes:
a gear transmission mechanism of a double-needle upper surface sewing machine comprises: a machine head body 1, a main shaft 2, a first gear 3, a second gear 4, a third gear 5, a fourth gear 6, a transverse feeding pattern cam 7 and a longitudinal feeding pattern cam 8, one end of the main shaft 2 is connected with a driving motor of the sewing machine, the other end is supported in the machine head body 1, the first gear 3 is fixed on the main shaft 2 and rotates synchronously with the main shaft 2, the second gear 4 is arranged on a hub of the third gear 5 and rotates synchronously with the third gear 5, the third gear 5 is arranged in the machine head body 1 through an upper supporting pin 9 and is meshed with the first gear 3 to form first-stage transmission, the fourth gear 6 is arranged in the machine head body 1 through a lower supporting pin 10 and is meshed with the second gear 4 to form a second-stage transmission, the transverse feeding pattern cam 7 and the longitudinal feeding pattern cam 8 are respectively and fixedly arranged on the hubs of the fourth gear 6.
Specifically, a first shaft hole 100, a second shaft hole 200 and a third shaft hole 300 are horizontally formed in the machine head body 1 from top to bottom, the main shaft 1 is supported in the first shaft hole 100, the shaft end of the upper support pin 9 is connected with the hub of the third gear 5 through the first bearing 11 in a matched manner, the upper support pin 9 is fixedly installed in the second shaft hole 200, the shaft end of the lower support pin 10 is connected with the hub of the fourth gear 6 through the second bearing 12 in a matched manner, and the connecting end of the lower support pin 10 is fixed on the third shaft hole 300.
And a first baffle 13 for fixing the third gear 5 is also arranged at the shaft end of the upper supporting pin 9, and a second baffle 14 for fixing the fourth gear 6 is also arranged at the shaft end of the lower supporting pin 10. Thereby making the transmission mechanism more stable and reliable.
The end surface of the transverse feeding pattern cam 7 is provided with a curve groove 71 connected with a transverse swing arm, and the circumferential end surface of the longitudinal feeding pattern cam 8 is integrally provided with a raised head 81 connected with a longitudinal swing arm.
In this embodiment, the gear ratio of the first gear 3 is 25, the gear ratio of the second gear 4 is 72, the gear ratio of the third gear 5 is 90, and the gear ratio of the fourth gear 6 is 120, so that the speed ratio of the first stage transmission composed of the first gear 3 and the third gear 5 is 90/25, and the speed ratio of the second stage transmission composed of the second gear 4 and the fourth gear 6 is 120/72, so that the total speed ratio of the whole mechanism is 1: 6.
with reference to fig. 1 and 2, the working principle of the present invention is:
the upper 21 is placed on a needle plate of a double-needle upper surface sewing machine, a driving motor of the sewing machine is started, under the driving of a main shaft 2, power is meshed with a first gear 3 to drive a third gear 5, the third gear 5 and a second gear 4 rotate together, the second gear 4 is meshed with a fourth gear 6, the fourth gear 6 drives a transverse feeding pattern cam 7 to rotate, the transverse feeding pattern cam 7 rotates and drives a transverse swing arm connected with the transverse feeding pattern cam 7, a needle rod of the sewing machine transversely swings, meanwhile, the fourth gear 6 drives a longitudinal feeding pattern cam 8, the longitudinal feeding pattern cam 8 rotates and drives a longitudinal swing arm connected with the longitudinal feeding pattern cam 8, the needle rod of the sewing machine longitudinally swings, and more various stitches 22 are sewn on the upper 21 through mutual matching of the two movements.
It is noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is conventionally placed when in use, and are only used for convenience of describing the utility model and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be therefore not to be construed as limiting the utility model. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. A gear transmission mechanism of a double-needle upper surface sewing machine is characterized by comprising: the sewing machine comprises a machine head body, a main shaft, a first gear, a second gear, a third gear, a fourth gear, a transverse feeding pattern cam and a longitudinal feeding pattern cam, wherein one end of the main shaft is connected with a driving motor of a sewing machine, the other end of the main shaft is supported in the machine head body, the first gear is fixed on the main shaft and synchronously rotates with the main shaft, the second gear is installed on a hub of the third gear and synchronously rotates with the third gear, the third gear is installed in the machine head body through an upper supporting pin and is mutually meshed with the first gear to form first-stage transmission, the fourth gear is installed in the machine head body through a lower supporting pin and is mutually meshed with the second gear to form second-stage transmission, and the total speed ratio of the first-stage transmission to the second-stage transmission is 1: and 6, the transverse feeding pattern cam and the longitudinal feeding pattern cam are respectively and fixedly arranged on the hubs of the fourth gear.
2. The gear transmission mechanism of a sewing machine with double needle upper as claimed in claim 1, wherein the gear ratio of the first gear is 25, the gear ratio of the second gear is 72, the gear ratio of the third gear is 90, and the gear ratio of the fourth gear is 120.
3. The gear transmission mechanism of a double-needle upper sewing machine according to claim 1, wherein the head body is horizontally provided with a first shaft hole, a second shaft hole and a third shaft hole from top to bottom, the main shaft is supported in the first shaft hole, the shaft end of the upper support pin penetrates through the hub of the third gear, the connecting end is installed in the second shaft hole, and the shaft end of the lower support pin penetrates through the hub of the fourth gear, and the connecting end is fixed on the third shaft hole.
4. The gear transmission mechanism of a sewing machine with double needle sides as claimed in claim 3, wherein the hub of the third gear is provided with a first bearing, the first bearing is connected with the shaft end of the upper supporting pin in a matching manner, and the hub of the fourth gear is provided with a second bearing, the second bearing is connected with the shaft end of the lower supporting pin in a matching manner.
5. The gear transmission mechanism of a double needle upper sewing machine according to claim 3, wherein a first catch for fixing the third gear is further installed on the shaft end of the upper support pin, and a second catch for fixing the fourth gear is further installed on the shaft end of the lower support pin.
6. The gear transmission mechanism of a double needle upper sewing machine according to claim 1, wherein a curved groove connected with the transverse swing arm is formed on an end surface of the transverse feeding pattern cam, and a raised head for connecting the longitudinal swing arm is integrally formed on a circumferential end surface of the longitudinal feeding pattern cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920710523.3U CN210066158U (en) | 2019-05-17 | 2019-05-17 | Gear transmission mechanism of double-needle upper surface sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920710523.3U CN210066158U (en) | 2019-05-17 | 2019-05-17 | Gear transmission mechanism of double-needle upper surface sewing machine |
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| Publication Number | Publication Date |
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| CN210066158U true CN210066158U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920710523.3U Active CN210066158U (en) | 2019-05-17 | 2019-05-17 | Gear transmission mechanism of double-needle upper surface sewing machine |
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| CN (1) | CN210066158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111607915A (en) * | 2020-06-18 | 2020-09-01 | 冷伟峰 | Textile mill sewing machine capable of automatically adding lubricant |
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2019
- 2019-05-17 CN CN201920710523.3U patent/CN210066158U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111607915A (en) * | 2020-06-18 | 2020-09-01 | 冷伟峰 | Textile mill sewing machine capable of automatically adding lubricant |
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