CN213804269U - Mechanical transmission structure of presser foot lifting cam of sewing machine - Google Patents
Mechanical transmission structure of presser foot lifting cam of sewing machine Download PDFInfo
- Publication number
- CN213804269U CN213804269U CN202022558382.3U CN202022558382U CN213804269U CN 213804269 U CN213804269 U CN 213804269U CN 202022558382 U CN202022558382 U CN 202022558382U CN 213804269 U CN213804269 U CN 213804269U
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- presser foot
- foot lifting
- lifting cam
- sewing machine
- cam
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Abstract
The application provides a mechanical transmission structure that presser foot cam was lifted to sewing machine, concretely relates to sewing machine manufacturing technical field, lift and install the slide bar on the eccentric position of presser foot cam, fix a position the axle sleeve on the slide bar, cooperation portion that the driving medium has matches with the axle sleeve, and foretell axle sleeve is fixed a position on the slide bar with the screw. The sliding rod is arranged at the eccentric position of the presser foot lifting cam, and the shaft sleeve or the bearing is positioned on the sliding rod, so that the presser foot lifting cam drives the transmission part to be smoother and smoother by utilizing the shaft sleeve or the bearing, the mechanical transmission efficiency is improved, the mechanical noise is effectively reduced, and the presser foot lifting cam has higher application value.
Description
Technical Field
The application provides a mechanical transmission structure of presser foot cam is lifted to sewing machine, concretely relates to sewing machine makes technical field.
Background
In the applicant of the present company, a mechanical structure of a presser foot lifting cam driving transmission member of a sewing machine is described. In order to improve the mechanical transmission efficiency of the presser foot lifting cam driving transmission member, a sliding rod is specially installed at the eccentric position of the presser foot lifting cam, the sliding rod pushes the transmission member to form a swinging source under the rotation of the presser foot lifting cam, and then the transmission member indirectly transmits the swinging source to the cloth conveying shaft.
Disclosure of Invention
Aiming at the defects of the presser foot lifting cam of the sewing machine, the technical problem to be solved by the application is to provide the presser foot lifting cam with good mechanical transmission efficiency, the presser foot lifting cam and the transmission piece are arranged on the presser foot lifting cam, the presser foot lifting cam is characterized in that a sliding rod is arranged at the eccentric position of the presser foot lifting cam, a shaft sleeve is positioned on the sliding rod, a matching part of the transmission piece is matched with the shaft sleeve, and the matching part is matched with the shaft sleeve, so that the mechanical matching between the presser foot lifting cam and the transmission piece is smoother, the mechanical transmission efficiency is improved, and the knocking sound is eliminated.
Further preferably, the shaft sleeve is positioned on the sliding rod through the screw, so that the shaft sleeve can freely slide on the sliding rod, and meanwhile, the running positioning of the shaft sleeve is fixed, and the running stability of the shaft sleeve is improved.
Further preferably, the shaft sleeve is positioned on the sliding rod by the cotter pin, and the shaft sleeve can freely slide on the sliding rod, so that the operation is stable and reliable.
Preferably, the slide rod is replaced and arranged into a bearing, namely the slide rod is matched with the bearing, and the outer end of the slide rod is provided with a cotter pin for positioning the bearing, so that the technical effect is consistent with the two schemes.
Compared with the prior art, the beneficial effects of this application are: the sliding rod is arranged at the eccentric position of the presser foot lifting cam, and the shaft sleeve or the bearing is positioned on the sliding rod, so that the presser foot lifting cam drives the transmission part by using the shaft sleeve or the bearing to be smoother and smoother, the knocking sound is eliminated, the mechanical transmission efficiency is improved, the mechanical noise is effectively reduced, and the presser foot lifting cam has higher application value.
Drawings
FIG. 1 is a configuration view of a mechanical transmission structure of a presser foot lifting cam of a sewing machine;
FIG. 2 is a schematic view of a transmission member of a mechanical transmission structure of a presser foot lifting cam of the sewing machine;
FIG. 3 is a schematic view of a presser foot lifting cam and a shaft sleeve of a mechanical transmission structure of the presser foot lifting cam of the sewing machine;
FIG. 4 is a schematic view of another fixing manner of a shaft sleeve of a mechanical transmission structure of a presser foot lifting cam of the sewing machine;
FIG. 5 is a schematic view of the fixing manner of the bearing of the mechanical transmission structure of the presser foot lifting cam of the sewing machine.
The reference numbers are as follows: the device comprises a motor 1, a pressure lifting pin cam 2, a screw 21, a sliding rod 211, a shaft sleeve 22, a bearing 23, a transmission part 3 and a matching part 31.
Detailed Description
The following detailed description of the preferred embodiments of the present application, taken in conjunction with the accompanying drawings, is provided to enable those skilled in the art to more readily understand the advantages and features of the present application, and is intended to more clearly and distinctly define the scope of the invention, which is set forth by way of illustration only and is not intended to be limiting of the invention.
As shown in fig. 1, fig. 2 and fig. 3, the present invention provides a mechanical transmission structure for a presser foot lifting cam of a sewing machine, which comprises a motor 1, a presser foot lifting cam 2 driven by the motor 1, and a transmission member 3 driven by the presser foot lifting cam 2. A sliding rod 211 is arranged at the eccentric position of the presser foot lifting cam 2, a shaft sleeve 22 is arranged on the sliding rod 211, and the shaft sleeve 22 drives the transmission piece 3 to perform swinging action under the rotation of the presser foot lifting cam 2; the transmission member 3 has an engagement portion 31 that is adapted to the sleeve 22, and the engagement portion 31 is adapted to the sleeve 22 regardless of whether the engagement portion 31 is in a stationary state or in a moving state.
The shaft sleeve 22 is positioned on the sliding rod 211 by the screw 21, the shaft sleeve 22 can freely slide under the positioning of the screw 21, the shaft sleeve 22 can smoothly transit to the matching part 31 when the pressure foot lifting cam 2 rotates, and the matching part 31 of the transmission part 3 is matched with the shaft sleeve 22 structurally, so that the mechanical transmission of the pressure foot lifting cam 2 driving the transmission part 3 is smoother and smoother, the mechanical transmission efficiency is improved, and the mechanical noise is lower.
In fig. 4, the shaft sleeve 22 is positioned on the sliding rod 211 by a cotter pin, the shaft sleeve 22 can slide freely under the positioning of the cotter pin, and the shaft sleeve 22 can smoothly transit to the matching part 31 under the rotation of the presser foot lifting cam 2, so that the mechanical transmission of the presser foot lifting cam 2 driving transmission member 3 is smoother, the mechanical transmission efficiency is improved, and the mechanical noise is effectively reduced.
In fig. 5, a bearing 23 is fixed on the sliding rod 211 at the eccentric position of the pressure raising and pressing foot cam 2 in a matching manner, a cotter pin is arranged at the end of the sliding rod 211 to position the bearing 23, and the bearing 23 can freely slide under the positioning of the cotter pin, so that the bearing 23 can smoothly transit to the matching part 31 when the pressure raising and pressing foot cam 2 rotates, the mechanical transmission of the pressure raising and pressing foot cam 2 driving transmission member 3 is smoother, the mechanical transmission efficiency is improved, and the mechanical noise is effectively reduced.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (4)
1. A mechanical transmission structure of a presser foot lifting cam of a sewing machine is provided with the presser foot lifting cam (2) and a transmission piece (3), and is characterized in that a sliding rod (211) is installed at the eccentric position of the presser foot lifting cam (2), a shaft sleeve (22) is positioned on the sliding rod (211), and a matching part (31) of the transmission piece (3) is matched with the shaft sleeve (22).
2. A mechanical transmission structure of a presser foot cam of a sewing machine as claimed in claim 1, wherein said sleeve (22) is freely slidable under the positioning of the screw (21).
3. A mechanical transmission structure of a presser foot cam of a sewing machine according to claim 1, characterized in that said sleeve (22) is freely slidable in the positioning of the cotter pin.
4. The mechanical transmission structure of a presser foot cam of a sewing machine as claimed in claim 1, wherein a bearing (23) is fastened to the sliding bar (211), and a cotter pin is provided on an outer end of the sliding bar (211) for positioning the bearing (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022558382.3U CN213804269U (en) | 2020-11-08 | 2020-11-08 | Mechanical transmission structure of presser foot lifting cam of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022558382.3U CN213804269U (en) | 2020-11-08 | 2020-11-08 | Mechanical transmission structure of presser foot lifting cam of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213804269U true CN213804269U (en) | 2021-07-27 |
Family
ID=76965937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022558382.3U Active CN213804269U (en) | 2020-11-08 | 2020-11-08 | Mechanical transmission structure of presser foot lifting cam of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213804269U (en) |
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2020
- 2020-11-08 CN CN202022558382.3U patent/CN213804269U/en active Active
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