CN210506771U - Electrical connection structure of rotary template sewing machine - Google Patents

Abstract

The utility model discloses an electrical connection structure of a rotary template sewing machine, which comprises a machine head mounting seat fixed on a sewing machine frame, wherein the bottom of the machine head mounting seat is connected with a rotatable machine head body, and a first motor for driving the machine head body to rotate is arranged on the machine head mounting seat; the electric slip ring is installed on the machine head installation seat, the output end of the electric slip ring is connected with the machine head body, the electromagnetic valve used for respectively controlling the wire sweeping cylinder, the large presser foot driving cylinder and the wire loosening device driving cylinder is arranged on the machine head body, the electric slip ring is provided with an output air path, and the output air path is connected with the electromagnetic valve. The utility model discloses the solenoid valve setting along separate routes is on rotatory aircraft nose body, and electric sliding ring only needs trachea input and output all the way, and the gas circuit structure is simplified to a plurality of branch road trachea of dividing on the solenoid valve control aircraft nose body along separate routes again.

Description

Electrical connection structure of rotary template sewing machine

Technical Field

The utility model relates to an industrial sewing machine, specifically speaking are rotary die plate sewing machine's electrical connection structure.

Background

Industrial sewing machines for sewing patterns often sew in various directions when sewing patterns. The head of a common pattern sewing machine is fixed, and a machine needle moves up and down in the same vertical direction. When a feeding mechanism of the pattern sewing machine feeds the cloth in all directions, some stitches are forward stitches and some backward stitches, which causes inconsistency of stitch quality in different directions, seriously leads to loosening and twisting of upper threads, reduction of sewing strength and reduction of sewing quality.

The invention patent with the patent application number of 201410197700.4 discloses an upper machine head of an independently-driven rotary type automatic sewing device, which comprises a machine head lifting assembly, a machine head rotating assembly and a machine head assembly, wherein the machine head rotating assembly is fixed on the machine head lifting assembly, the machine head assembly is fixed on the lower part of the machine head rotating assembly, the machine head rotating assembly comprises a conductive sliding ring, a sliding ring fixing seat, a machine head mounting plate, a machine head rotating motor, a gearbox and a rotating shaft, and the upper end of the rotating shaft is connected with the conductive sliding ring to drive the conductive sliding ring to rotate; the rotation axis can drive the head assembly clockwise or anticlockwise 360 degrees rotations, and head lifting assembly drives the head assembly through head rotation assembly and reciprocates. The patent adapts to the feeding direction of cloth by driving the upper machine head to rotate, so that the sewing stitches of the pattern patterns are all along the stitches, but the patent technology has the defects of large machine head volume and unstable rotating structure.

Disclosure of Invention

The utility model discloses to rotatory template machine at the rotatory in-process electric connection structure of aircraft nose complicacy, the too much problem of gas circuit connecting line, and provide a rotatory template sewing machine's electric connection structure, simplify electric connection structure, adapt to the rotatory work of aircraft nose body.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: an electrical connection structure of a rotary template sewing machine comprises a machine head mounting seat fixed on a sewing machine frame, wherein the bottom of the machine head mounting seat is connected with a rotatable machine head body, and a first motor for driving the machine head body to rotate is arranged on the machine head mounting seat; the electric slip ring is installed on the machine head installation seat, the output end of the electric slip ring is connected with the machine head body, the electromagnetic valve used for respectively controlling the wire sweeping cylinder, the large presser foot driving cylinder and the wire loosening device driving cylinder is arranged on the machine head body, the electric slip ring is provided with an output air path, and the output air path is connected with the electromagnetic valve.

In order to optimize the technical proposal, the utility model discloses still include following modified technical proposal.

The large presser foot comprises a presser foot mounting frame, the large presser foot driving cylinder is fixed on the presser foot mounting frame, and a piston rod of the large presser foot driving cylinder is connected with the large presser foot disc.

And a pressure reducing valve is fixed on the large presser foot mounting frame.

The electromagnetic valve is fixedly arranged at the lower part of the machine head body.

The inner part of the machine head mounting seat is provided with an annular outer gear for driving the machine head body to rotate and an annular bearing for guiding the annular outer gear to rotate; the first motor is fixed on the motor mounting part, the power output shaft of the first motor is connected with the gear shaft, and the lower end of the gear shaft is provided with a gear part matched with the annular outer gear, and the first motor is electrically connected with the circuit output end of the electric slip ring.

Compared with the prior art, the utility model discloses a rotary die plate sewing machine's electrical connection structure, the solenoid valve setting along separate routes is on rotatory aircraft nose body, and electric sliding ring only needs trachea input and output all the way, and a plurality of branch road trachea of branching on the solenoid valve control aircraft nose body again through along separate routes simplifies the gas circuit structure.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a schematic front structural diagram of an embodiment of the present invention.

Fig. 3 is a schematic back structure diagram of an embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of the head mount of the present embodiment.

Fig. 5 is an assembled exploded view of fig. 1.

Fig. 6 is a schematic structural view of the needle portion in the present embodiment.

Fig. 7 is a schematic structural diagram of the middle presser foot portion in this embodiment.

Fig. 8 is a schematic structural view of the installation of the needle bar in the present embodiment.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

Fig. 1 to 8 are schematic structural views of the present invention.

Wherein the reference numerals are: the hand piece mounting seat 1, the motor mounting portion 1a, the outer wall portion 1b, the inner wall portion 1c, the first motor 11, the annular external gear 12, the annular bearing 13, the adapter plate 14, the gear shaft 15, the gear portion 15a, the annular step 15b, the sleeve portion 15c, the bearing sleeve 16, the first drive bearing 16a, the second drive bearing 16b, the sealing member 17, the hand piece body 2, the middle presser foot mounting rod 3, the second motor 31, the first guide block 32, the first guide groove 32a, the middle presser foot drive crank 33, the connecting rod 34, the middle presser foot drive bearing 35, the middle presser foot connecting block 36, the needle bar 4, the first needle bar sleeve 401, the second needle bar sleeve 402, the third motor 41, the first synchronizing wheel 42, the main shaft 43, the second synchronizing wheel 44, the needle bar drive synchronizing belt 45, the needle bar crank 46, the crankshaft 47, the connecting rod 48, the hand wheel 49, the electrical slip ring 5, the electromagnetic valve 51, the presser foot mounting rack 52, the large presser, A large presser foot disc 54, a pressure reducing valve 55, a thread sweeping cylinder 56 and a thread loosening device driving cylinder 57.

The utility model discloses a rotary die plate sewing machine, including fixing aircraft nose mount pad 1 in sewing machine frame, 1 bottoms of aircraft nose mount pad are connected with can pivoted aircraft nose body 2, are equipped with the first motor 11 of the 2 rotations of drive aircraft nose body on the aircraft nose mount pad 1. The inner part of the machine head mounting seat 1 is provided with an outer annular gear 12 for driving the machine head body 2 to rotate and an annular bearing 13 for guiding the outer annular gear 12 to rotate. The top of the machine head mounting seat 1 is provided with a motor mounting part 1a, the first motor 11 is fixed on the motor mounting part 1a, a power output shaft of the first motor 11 is connected with a gear shaft 15, and the lower end of the gear shaft 15 is provided with a gear part 15a matched with the annular outer gear 12.

The handpiece mounting base 1 has an outer wall portion 1b and a circular inner wall portion 1c, and a mounting space is formed between the outer wall portion 1b and the inner wall portion 1 c. The external annular gear 12 and the annular bearing 13 are coaxially connected and are installed in the installation space. The utility model discloses in, circular external gear 12 and the 2 normal running fits of aircraft nose body that aircraft nose mount pad 1 adopted the large disk face compare in the worm gear drive mode among the prior art, can improve 2 rotation control's of aircraft nose body accuracy and stability.

In the present embodiment, the outer ring of the annular bearing 13 is disposed on the side surface of the external annular gear 12, and the annular bearing 13 is disposed coaxially with the external annular gear 12 up and down. The annular outer gear 12 is fixedly connected with the machine head body 2 through an adapter plate 14 and an outer ring of an annular bearing 13. The inner ring of the annular bearing 13 is fixedly connected to the inner wall 1c of the head mount 1. The adapter plate 14 is a connection piece for connecting the annular bearing 13 and the handpiece body 2.

The bottom surface of the handpiece mounting seat 1 is provided with a sealing element 17 for sealing a mounting space, and a lubricating oil cavity is formed in the mounting space. The sealing element 17 may be a skeleton seal ring, and lubricating oil is filled in the installation space to lubricate the rotating element in the installation space.

A bearing bush 16 is provided in the motor mounting portion 1 a. The bearing housing 16 has a circular outer wall and a circular inner wall. The axle center of the circular outer wall and the axle center of the circular inner wall are eccentrically arranged. A drive bearing for guiding the rotation of the gear shaft 15 is provided inside the bearing housing 16. The driving bearing is arranged in the circular inner wall, and the axis of the driving bearing is eccentrically arranged with the axis of the circular outer wall of the bearing sleeve 16. During the mounting of the gear shaft 15, the meshing clearance between the gear portion 15a and the ring-shaped external gear 12 is not easily controlled and adjusted. The utility model discloses an eccentric bearing housing 16 rotates bearing housing 16 in the installation, alright with the distance in 15 axle centers of fine adjustment gear shaft and 12 axle centers of ring external gear to reach adjustment backlash's purpose, make the installation and the maintenance of gear shaft 15 more convenient.

The middle part of the gear shaft 15 is provided with a circular step 15b along the circumference. The drive bearing comprises a first drive bearing 16a and a second drive bearing 16b fixed within the bearing housing 16. The bottom surface of the outer ring of the first drive bearing 16a is abutted against the inner wall of the bottom surface of the bearing sleeve 16, and the top surface of the inner ring of the first drive bearing 16a is abutted against the annular step 15 b. The top surface of the outer ring of the second drive bearing 16b abuts against the motor mounting member, and the bottom surface of the inner ring of the second drive bearing 16b abuts against the annular step 15 b. The first and second drive bearings 16a and 16b may prevent axial movement of the gear shaft 15 by using the ring step 15b structure, thereby improving the rotational stability of the handpiece body 2 and the accuracy of the rotational angle control.

The gear shaft 15 has a sleeve portion 15c, and the power output shaft is fitted in the sleeve portion 15c, and the sleeve portion 15c and the power output shaft are fixed by an open-ended collar.

In this embodiment, the adapter plate 14 has a mounting hole, the external annular gear 12 is fixedly connected with a side wall of the annular bearing 13 through the adapter plate 14, and the other side wall of the annular bearing 13 is fixedly connected with the handpiece body 2 through the mounting hole. The annular outer gear 12 and the annular bearing 13 can also be installed in a nested manner, the annular bearing 13 is installed inside the annular outer gear 12, and the annular outer gear 12 is fixedly connected with the machine head body 2 through the adapter disc 14.

The utility model discloses a well presser foot structure, including well presser foot installation pole 3, be arranged in the second motor 31 of the up-and-down motion of drive presser foot installation pole 3. The second motor 31 is fixed on the rotatable head body 2, a first guide block 32 is fixed inside the head body 2, and the middle presser foot mounting bar 3 is slidably disposed in a first guide groove 32a of the first guide block 32. The power output shaft of the second motor 31 is connected with a middle presser foot driving crank 33, and the front end of the middle presser foot driving crank 33 is connected with the middle presser foot mounting rod 3 through a connecting rod 34.

Two ends of the connecting rod 34 are respectively provided with a round hole mounting part, and a middle presser foot driving bearing 35 is fixed in the round hole mounting part. The middle presser foot driving bearing 35 at one end of the connecting rod 34 is rotatably connected with the front end of the middle presser foot driving crank 33, and the middle presser foot driving bearing 35 at the other end is rotatably connected with the middle presser foot connecting block 36 on the middle presser foot mounting rod 3. The middle presser foot driving bearings 35 are arranged at two ends of the connecting rod 34, so that the transmission sensitivity of the middle presser foot can be improved, and the running noise is reduced.

The middle presser foot connecting block 36 comprises a loop fastening part fixedly connected with the middle presser foot mounting rod 3, a connecting part connected with the inner ring of the middle presser foot driving bearing 35, and a guiding part in sliding fit with the first guiding groove (32 a). The tight ring part of the middle presser foot connecting block 36 is sleeved on the middle presser foot mounting rod 3 and is fixed by screws. The connecting part is positioned on one side of the tight ring part, and the guide part is positioned on the other side of the tight ring part.

A second motor installation cavity and a third motor installation cavity are formed in the handpiece body 2; the opening of the second motor installation cavity is positioned at the rear part of the machine head body 2, and the opening of the third motor installation cavity is positioned at the front part of the machine head body 2; the third motor 41 is installed in a direction opposite to the direction in which the second motor 31 is installed.

A second motor installation cavity partition plate is arranged inside the machine head body 2, the second motor 31 is fixed behind the second motor installation cavity partition plate, and a power output shaft of the second motor 31 penetrates through the second motor installation cavity partition plate to be connected with the root of the middle presser foot driving crank 33.

The utility model discloses a needle bar structure, including locating needle bar 4 in aircraft nose body 2 and the third motor 41 that is used for driving needle bar 4 up-and-down motion. A first synchronizing wheel 42 is fixed on a power output shaft of the third motor 41, a rotatable main shaft 43 is arranged in the handpiece body 2, a second synchronizing wheel 44 is fixed on the rear end of the main shaft 43, and the first synchronizing wheel 42 is connected with the second synchronizing wheel 44 through a needle rod driving synchronous belt 45.

The front end of the main shaft 43 is fixed with a needle rod crank 46, and the output end of the needle rod crank 46 is connected with the needle rod 4 through a crank shaft 47 and a connecting rod 48. A hand wheel 49 is fixed at the rear end of the main shaft 43, and the hand wheel 49 is provided with a balancing weight. The needle bar crank 46 has one end connected to a crankshaft 47 and the other end having a counterweight. The hand wheel 49 comprises an inner ring connected with the main shaft 43 and an outer ring used for holding, and a corresponding balancing weight is arranged between the inner ring and the outer ring of the hand wheel 49, so that the rotation performance of the main shaft 43 can be balanced.

The machine head body 2 is provided with a needle bar installation cavity, the top of the needle bar installation cavity is provided with a detachable first needle bar sleeve 401, and the bottom of the needle bar installation cavity is provided with a detachable second needle bar sleeve 402; the needle bar 4 is slidably mounted in the first needle bar sleeve 401 and the second needle bar sleeve 402. The first needle bar sleeve 401 and the second needle bar sleeve 402 are detachably mounted on the handpiece body 2, so that the needle bar 4 can be conveniently mounted and dismounted.

A third motor installation cavity partition plate is arranged in the handpiece body 2, the third motor 41 is arranged in the front of the third motor installation cavity partition plate, and a power output shaft of the third motor 41 penetrates through the third motor installation cavity partition plate and is connected with a first synchronous wheel 42 behind the third motor installation cavity partition plate. The needle bar crank 46 on the main shaft 43 is located in front of the third motor mounting cavity partition, and the second synchronizing wheel 44 and the hand wheel 49 are located behind the third motor mounting cavity partition.

The rear part of the handpiece body 2 is provided with a mounting cavity for accommodating the first synchronizing wheel 42, the needle bar driving synchronizing belt 45 and the second synchronizing wheel 44. The power output shaft of the third motor 41 is mounted to the rear of the head body 2 and connected to the first synchronizing wheel 42.

The utility model discloses an electrical connection structure installs electric sliding ring 5 on aircraft nose mount pad 1, and electric sliding ring 5's rotatory output is connected with aircraft nose body 2, is equipped with the solenoid valve 51 that is used for controlling to sweep line cylinder 56, big presser foot and drives actuating cylinder 53, thread slackener and drive actuating cylinder 57 on the aircraft nose body 2.

The aircraft nose body 2 is at rotatory in-process, and cylinder and the motor work on the aircraft nose body 2 need power supply and air feed, in order to avoid power supply line and air supply pipe winding, adopts the connection structure of electric sliding ring 5. The air path output by the electric slip ring 5 is divided into multiple paths and connected with corresponding electromagnetic valves 51 for controlling the work of the wire sweeping cylinder 56, the large presser foot driving cylinder 53 and the wire loosening device driving cylinder 57.

The large presser foot comprises a presser foot mounting frame 52, a large presser foot driving cylinder 53 is fixed on the presser foot mounting frame 52, and a piston rod of the large presser foot driving cylinder 53 is connected with a large presser foot disc 54.

A pressure reducing valve 55 is fixed on the large presser foot mounting bracket 52. The utility model discloses install solenoid valve 51 and relief pressure valve 55 on aircraft nose body 2, electric sliding ring 5 can be through a gas circuit input, subdivide the multichannel after electric sliding ring 5, reduce electric sliding ring 5's input gas circuit.

While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention.

Claims (5)

1. An electrical connection structure of a rotary template sewing machine comprises a machine head mounting seat (1) fixed on a sewing machine frame, wherein the bottom of the machine head mounting seat (1) is connected with a rotatable machine head body (2), and a first motor (11) for driving the machine head body (2) to rotate is arranged on the machine head mounting seat (1); the method is characterized in that: the electric wire drawing machine is characterized in that an electric sliding ring (5) is mounted on the machine head mounting seat (1), the output end of the electric sliding ring (5) is connected with the machine head body (2), an electromagnetic valve (51) used for respectively controlling a wire sweeping cylinder (56), a large presser foot driving cylinder (53) and a wire loosening device driving cylinder (57) is arranged on the machine head body (2), the electric sliding ring (5) is provided with an output air path, and the output air path is connected with the electromagnetic valve (51).

2. The electrical connection structure according to claim 1, wherein: the large presser foot comprises a presser foot mounting frame (52), the large presser foot driving cylinder (53) is fixed on the presser foot mounting frame (52), and a piston rod of the large presser foot driving cylinder (53) is connected with a large presser foot disc (54).

3. The electrical connection structure according to claim 2, wherein: a pressure reducing valve (55) is fixed on the big presser foot mounting bracket (52).

4. The electrical connection structure according to claim 1, wherein: the electromagnetic valve (51) is fixedly arranged at the lower part of the machine head body (2).

5. The electrical connection structure according to claim 1, wherein: an annular outer gear (12) for driving the machine head body (2) to rotate and an annular bearing (13) for guiding the annular outer gear (12) to rotate are arranged in the machine head mounting seat (1); the first motor (11) is fixed on the motor mounting part (1a), the power output shaft of the first motor (11) is connected with the gear shaft (15), the lower end of the gear shaft (15) is provided with a gear part (15a) matched with the annular outer gear (12), and the first motor (11) is electrically connected with the circuit output end of the electric slip ring (5).

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