CN209798252U - Sewing machine - Google Patents

Sewing machine Download PDF

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Publication number
CN209798252U
CN209798252U CN201920507769.0U CN201920507769U CN209798252U CN 209798252 U CN209798252 U CN 209798252U CN 201920507769 U CN201920507769 U CN 201920507769U CN 209798252 U CN209798252 U CN 209798252U
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CN
China
Prior art keywords
machine
gear
gear box
bushing
machine head
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Active
Application number
CN201920507769.0U
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Chinese (zh)
Inventor
王俊跃
谭炜军
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Bullmer Electromechanical Technology Co Ltd
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Bullmer Electromechanical Technology Co Ltd
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Priority to CN201920168035 priority Critical
Priority to CN2019201680354 priority
Application filed by Bullmer Electromechanical Technology Co Ltd filed Critical Bullmer Electromechanical Technology Co Ltd
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Abstract

The utility model discloses a sewing machine, which comprises a frame base mechanism (01), a table top (02), a machine body (03) and a feeding mechanism, wherein a supporting plate seat (35) and a motor (11) are installed on an installation main plate (33) of an upper rotating mechanism (09), an upper machine head (2) is borne by the installation main plate (33) and can rotate relative to the installation main plate (33), and a large gear (24) is sleeved on the upper machine head (2); the large gear (24) is meshed with the small gear (16), and the small gear (16) and the large gear (24) are both arranged in the gear box (17). The product can keep the mutual position of the needle and the suture in the forward sewing state all the time in the backward sewing direction, thereby improving the sewing quality; in addition, the structure of the equipment is more compact, and the lubricating and dustproof effects are better.

Description

sewing machine
Technical Field
The utility model relates to a sewing machine technical field especially relates to a sewing machine.
Background
The sewing machine is an important sewing device, when complex patterns are sewn, the sewing in any direction can be generated, the sewing in different directions can generate two stitch appearances of a forward stitch and a backward stitch, and the sewing quality of the two stitch appearances is different.
Wherein, the backstitch stitch is poor in appearance, the upper thread can be loose and twisted, the intensity of the thread is reduced, the thread breakage rate is improved, and the sewing quality is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sewing machine, not only the sewing quality obtains obviously promoting, and the simple structure of equipment, specification are little moreover, use cost is low, and the operation is more reliable.
In order to achieve the above purpose, the utility model provides a sewing machine, which comprises a frame base mechanism, a table board, a machine body and a feeding mechanism, wherein the table board, the machine body and the feeding mechanism are supported by the frame base mechanism;
The machine head connecting assembly of the upper rotating mechanism comprises a mounting main board fixedly mounted with the machine shell, the mounting main board is fixedly connected with a gear box and a motor, and an output shaft of the motor drives a pinion to rotate; the top of the rotary sleeve is supported by the supporting plate seat and can rotate relative to the supporting plate seat, the bottom of the rotary sleeve bears the machine head, a large gear synchronously rotating with the machine head is fixedly installed on the outer side of the rotary sleeve, and the large gear and the small gear are kept in a meshed state; the pinion and the bull gear are both arranged in the gearbox.
preferably, the swivel sleeve penetrates through the gear box, an upper shaft sleeve and a lower shaft sleeve are arranged between the gear box and the swivel sleeve, and the upper shaft sleeve and the lower shaft sleeve are fixedly installed on the top wall and the bottom wall of the gear box respectively.
Preferably, the top of the rotating sleeve is also fixedly connected with a slip ring rotor coaxially arranged with the rotating sleeve, and the top of the slip ring rotor is rotationally connected with a slip ring stator coaxially arranged with the slip ring rotor; and the slip ring stator is fixedly connected with the supporting plate seat through a slip ring stop plate.
Preferably, the bottom of the rotary sleeve is provided with a flange, and the machine head is connected with the rotary sleeve through the flange.
Preferably, the motor is supported by the gear box and connected to the pinion gear through a speed reducer.
Preferably, the top of the gear box is also provided with a speed reducer mounting seat, and the speed reducer is arranged on the upper part of the speed reducer mounting seat.
Preferably, the decelerator mounting seat has a frame structure, and couplings are arranged in frame spaces at the top and bottom of the decelerator mounting seat.
In order to achieve the above object, the utility model also provides a sewing machine, which comprises a frame base mechanism, a table top, a machine body and a feeding mechanism, wherein the table top, the machine body and the feeding mechanism are supported by the frame base mechanism;
The machine head connecting assembly of the upper rotating mechanism comprises a mounting main board fixedly mounted with the machine shell, the mounting main board is fixedly connected with a gear box and a motor, and an output shaft of the motor drives a pinion to rotate; the bottom of the rotary sleeve bears the upper machine head, and a large gear synchronously rotating with the upper machine head is fixedly arranged on the outer side of the rotary sleeve;
The large gear and the small gear are kept in a meshed state; the pinion and the bull gear are both arranged in the gearbox.
preferably, the swivel sleeve penetrates through the gear box, an upper shaft sleeve and a lower shaft sleeve are arranged between the swivel sleeve and the gear box, and the upper shaft sleeve and the lower shaft sleeve are fixedly mounted on the top wall and the bottom wall of the gear box respectively; the top of the swivel nut is supported by the upper bushing and can rotate relative to the upper bushing.
Preferably, a flange is arranged at the bottom of the rotary sleeve, and the upper machine head is connected with the rotary sleeve through the flange.
Preferably, the motor is supported by the gear box and connected to the pinion gear through a speed reducer.
Preferably, the top of the gear box is also provided with a speed reducer mounting seat, and the speed reducer is arranged on the upper part of the speed reducer mounting seat.
Preferably, the decelerator mounting seat has a frame structure, and couplings are arranged in frame spaces at the top and bottom of the decelerator mounting seat.
The utility model provides a sewing machine, its aircraft nose can take place rotatoryly under the drive of motor, consequently can be when sewing backstitch direction rotatory aircraft nose subassembly, make the mutual position of eedle and suture keep the state when following the seam always to avoided producing the backstitch stitch seam, improved the quality of sewing.
The gear wheel and the pinion are arranged in the gear box, so that the lubricating and dustproof effects are better, and the running is more reliable.
In a specific embodiment, the rotary sleeve penetrates through the gear box, an upper shaft sleeve and a lower shaft sleeve are arranged between the rotary sleeve and the gear box, and the upper shaft sleeve and the lower shaft sleeve are fixedly installed on the top wall and the bottom wall of the gear box respectively. Therefore, the upper part and the lower part of the rotary sleeve are both transversely positioned by the gear box, and the product structure is further optimized.
drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of an overall structure of a sewing machine according to an embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of the connecting assembly of the machine head and the upper machine head in FIG. 1;
FIG. 3 is a perspective view of the handpiece attachment assembly of FIG. 1;
Fig. 4 is a schematic cross-sectional view of the bushing of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
the utility model discloses the core is to provide a sewing machine, and not only the sewing quality obtains obviously promoting, and the simple structure of equipment, specification are little moreover, use cost is low, and the operation is more reliable.
referring to fig. 1 to 4, fig. 1 is a schematic view of an overall structure of a sewing machine according to an embodiment of the present invention; FIG. 2 is a schematic view of the overall structure of the connecting assembly of the machine head and the upper machine head in FIG. 1; FIG. 3 is a perspective view of the handpiece attachment assembly of FIG. 1; fig. 4 is a schematic cross-sectional view of the bushing of fig. 1.
In a specific embodiment, the utility model provides a sewing machine includes frame base mechanism 01 on the whole to and mesa 02, fuselage 03 and feeding mechanism supported by it, feeding mechanism specifically includes that X is to feeding mechanism 05 and Y to feeding mechanism 06, and lower rotary mechanism 08 of aircraft nose 07 and drive lower aircraft nose 07 is installed to the below of mesa 02, still installs last rotary mechanism 09 and last aircraft nose 2 on the fuselage 03, and it is specifically the aircraft nose coupling assembling 1 who connects in last rotary mechanism 09 to go up aircraft nose 2.
The upper machine head 2 is hung by the machine head connecting component 1. The handpiece connecting assembly 1 can be directly hung on the casing through the installation main board 33, can also be hung on the casing through the installation main board 33 and the body installation board 41, and certainly, the structure of the installation main board 33 can be adaptively adjusted if the body installation board 41 is not separately arranged. In any case, the hanging manner with the casing is not the key point of the present invention, and the prior art can be referred to if necessary.
The gear box 17 is fixedly mounted on the mounting main plate 33, and the vertically mounted motor 11 is provided, and the motor 11 may be a rotating electrical machine or other power components such as a hydraulic motor. The motor 11 may be directly provided on the mounting main plate 33, or may be mounted on the gear case 17 so as to be indirectly fixedly mounted on the mounting main plate 33.
the motor 11 is vertically disposed, that is, its output shaft is vertically disposed. Of course, the vertical arrangement is a concept opposite to the horizontal arrangement, and does not mean that the vertical angle thereof should be absolutely limited to a certain value.
The output shaft of the motor 11 is connected to and drives the pinion shaft 15, which in turn drives the pinion 16 in rotation. The bottom end of the pinion shaft 15 may be connected to the gear case 17 through a pinion flange.
The upper head 2 is carried by the mounting main plate 33 and can rotate relative to the mounting main plate 33; the periphery of the upper machine head 2 is further sleeved with a large gear 24 which rotates synchronously with the upper machine head, and the large gear 24 is meshed with the small gear 16.
The utility model provides a sewing machine, its aircraft nose can take place rotatoryly for the supporting plate seat under the drive of motor, consequently can be when sewing backstitch direction rotatory aircraft nose subassembly, make the mutual position of eedle and suture keep the state when following the seam always to avoided producing the backstitch stitch seam, improved the quality of sewing.
The gear wheel and the pinion are arranged in the gear box, so that the lubricating and dustproof effects are better, and the running is more reliable.
In addition, other improvements can be made to the sewing machine provided by the utility model.
For example, the output shaft of the motor 11 may be provided with no pinion 16, but instead with a small pulley; meanwhile, the periphery of the upper handpiece 2 is not provided with a large gear 24, and a large belt wheel connected with the small belt wheel through a synchronous belt is additionally arranged. In this way, power transmission is achieved by means of the drive belt, which facilitates elimination of errors in manufacture and assembly of the relevant components, and thus facilitates stable operation of the apparatus.
For another example, the output shaft of the rotating electric machine or other motor 11 may be directly connected to the pinion 16, or may be connected to the pinion 16 through the reduction gear 12.
the speed reducer 12 may be mounted in a further design, for example, by mounting a speed reducer mount 13 on the top of the gear case 17 and disposing the speed reducer 12 on the top of the speed reducer mount 14.
The retarder mounting 13 may be designed as a frame structure, and the top and bottom frame spaces thereof may be used to provide the couplers 14.
The structure of the equipment can be further optimized by the arrangement, and the stable working state is realized by a simple structure.
The swivel nut 23 may be provided to penetrate the gear case 17, and an upper bushing 191 may be installed between an upper portion of the swivel nut 23 and a top wall of the gear case 17, and a lower bushing 192 may be installed between a lower portion of the swivel nut 23 and a bottom wall of the gear case 17. In addition, the outer periphery of the rotary sleeve 23 can be provided with a positioning check ring 25.
The top of the rotary sleeve 23 can be provided with a slip ring 21; specifically, the rotating sleeve 23 may be fixedly connected to a slip ring rotor 212 coaxially disposed therewith, and a top portion of the slip ring rotor 212 may be further rotatably connected to a slip ring stator 211 coaxially disposed therewith; the slip ring stator 211 is fixedly connected to the support plate holder 35 via the slip ring stop plate 22.
The swivel nut 23 may be supported, and it is obvious that the swivel nut 23 may be supported by the support plate seat 35, or may be supported by other structures, for example, by the upper bushing 191, so that the support plate seat 35 and other components may be omitted. Of course, the rotation of the swivel sleeve 23 should be smooth, and the support here should naturally be a rotational support.
The bottom of the rotating sleeve 23 can be provided with a flange 193, and the upper machine head 2 is connected with the rotating sleeve 23 through the flange 193.
the arrangement of the rotary sleeve 23 and the related auxiliary components thereof can ensure that the rotating process of the upper machine head 2 is more reliable and stable through a simple structure.
the embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The sewing machine provided by the utility model is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (13)

1. A sewing machine is characterized by comprising a rack base mechanism (01), a table top (02) supported by the rack base mechanism, a machine body (03) and a feeding mechanism, wherein a lower machine head (07) and a lower rotating mechanism (08) for driving the lower machine head (07) are arranged below the table top (02), an upper rotating mechanism (09) and an upper machine head (2) are arranged on the machine body (03), and the upper machine head (2) and the lower machine head (07) synchronously rotate;
The handpiece connecting assembly (1) of the upper rotating mechanism (09) comprises a mounting main board (33) fixedly mounted with the shell, the mounting main board (33) is fixedly connected with a gear box (17) and a motor (11), and an output shaft of the motor (11) drives a pinion (16) to rotate; the top of the rotary sleeve (23) is supported by a supporting plate seat (35) and can rotate relative to the supporting plate seat (35), the bottom of the rotary sleeve (23) bears the upper machine head (2), and a large gear (24) which synchronously rotates with the upper machine head is fixedly installed on the outer side of the rotary sleeve (23);
The gearwheel (24) and the pinion (16) are kept in a meshed state; the small gear (16) and the large gear (24) are both arranged in the gear box (17).
2. The sewing machine according to claim 1, characterized in that the turnbuckle (23) passes through the gear box (17) with an upper bushing (191) and a lower bushing (192) disposed therebetween, the upper bushing (191) and the lower bushing (192) being fixedly mounted to the top wall and the bottom wall of the gear box (17), respectively.
3. The sewing machine as claimed in claim 2, characterized in that the top of the rotating sleeve (23) is fixedly connected with a slip ring rotor (212) coaxially arranged therewith, and the top of the slip ring rotor (212) is rotatably connected with a slip ring stator (211) coaxially arranged therewith; the slip ring stator (211) is fixedly connected with the supporting plate seat (35) through a slip ring stop plate (22).
4. A machine as claimed in claim 3, wherein said turnbuckle (23) is provided at the bottom with a flange (193), said upper head (2) being connected to said turnbuckle (23) through said flange (193).
5. A machine as claimed in claim 3, wherein said motor (11) is supported by said gearbox (17) and is connected to said pinion (16) by means of a reducer (12).
6. The sewing machine according to claim 5, wherein a decelerator mounting seat (13) is further installed on the top of the gear box (17), and the decelerator (12) is provided on the upper portion of the decelerator mounting seat (13).
7. Sewing machine as in claim 6, characterized in that said reducer mounting (13) has a frame structure, in the frame spaces of which the top and bottom are provided with couplings (14).
8. A sewing machine is characterized by comprising a rack base mechanism (01), a table top (02) supported by the rack base mechanism, a machine body (03) and a feeding mechanism, wherein a lower machine head (07) and a lower rotating mechanism (08) for driving the lower machine head (07) are arranged below the table top (02), the machine body (03) is provided with an upper rotating mechanism (09) and a vertically arranged upper machine head (2), and the upper machine head (2) and the lower machine head (07) synchronously rotate;
The handpiece connecting assembly (1) of the upper rotating mechanism (09) comprises a mounting main board (33) fixedly mounted with the shell, the mounting main board (33) is fixedly connected with a gear box (17) and a motor (11), and an output shaft of the motor (11) drives a pinion (16) to rotate; the bottom of the rotary sleeve (23) bears the upper machine head (2), and a large gear (24) which rotates synchronously with the upper machine head is fixedly arranged on the outer side of the rotary sleeve;
The gearwheel (24) and the pinion (16) are kept in a meshed state; the small gear (16) and the large gear (24) are both arranged in the gear box (17).
9. The sewing machine according to claim 8, characterized in that the turnbuckle (23) passes through the gear box (17) with an upper bushing (191) and a lower bushing (192) disposed therebetween, the upper bushing (191) and the lower bushing (192) being fixedly mounted on the top wall and the bottom wall of the gear box (17), respectively; the top of the swivel sleeve (23) is supported by the upper bushing (191) and can rotate relative to the upper bushing (191).
10. The sewing machine according to claim 9, characterized in that the bottom of the turnbuckle (23) is provided with a flange (193), and the upper head (2) is connected with the turnbuckle (23) through the flange (193).
11. The sewing machine according to claim 10, characterized in that the motor (11) is supported by the gearbox (17) and is connected to the pinion (16) by means of a reducer (12).
12. The sewing machine according to claim 11, wherein a decelerator mounting seat (13) is further installed on the top of the gear box (17), and the decelerator (12) is provided on the upper portion of the decelerator mounting seat (13).
13. The sewing machine according to claim 12, wherein the decelerator mounting base (13) has a frame structure with a coupling (14) provided in a frame space at the top and bottom thereof.
CN201920507769.0U 2019-01-30 2019-04-15 Sewing machine Active CN209798252U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201920168035 2019-01-30
CN2019201680354 2019-01-30

Publications (1)

Publication Number Publication Date
CN209798252U true CN209798252U (en) 2019-12-17

Family

ID=68829433

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920507769.0U Active CN209798252U (en) 2019-01-30 2019-04-15 Sewing machine

Country Status (1)

Country Link
CN (1) CN209798252U (en)

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