CN210031079U

CN210031079U - Auxiliary feeding device of sewing machine

Info

Publication number: CN210031079U
Application number: CN201920806562.3U
Authority: CN
Inventors: 张雄杰; 闫烊洋; 邵楚涵
Original assignee: Donghai Science and Technology Colloge of ZJOU
Current assignee: Donghai Science and Technology Colloge of ZJOU
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-02-07
Anticipated expiration: 2029-05-30

Abstract

The utility model belongs to the technical field of make up equipment, a sewing machine's supplementary material feeding unit is related to, it has solved the relatively poor scheduling problem of current supplementary material feeding unit's pay-off effect. The auxiliary feeding device comprises a platen, wherein a conveying belt is arranged on the platen along a feeding direction, the auxiliary feeding device further comprises a rotary driving source, a first oscillating bar and a second oscillating bar, the rotary driving source is fixed on the platen, the rear end of the first oscillating bar is fixedly connected with an output shaft of the rotary driving source, the front end of the first oscillating bar is hinged with the rear end of the second oscillating bar, a roller is rotatably arranged at the front end of the first oscillating bar, and the axial direction of the roller is perpendicular to the feeding direction. Because the utility model provides a pendulum rod one is articulated with pendulum rod two phase, even consequently the thickness of cloth is different, pendulum rod two also can be through the angle between self-interacting and the pendulum rod one for the whole wheel face of the roller on the pendulum rod two improves the direction effect with cloth direct contact, and then improves holistic pay-off performance.

Description

Auxiliary feeding device of sewing machine

Technical Field

The utility model belongs to the technical field of make up equipment, a sewing machine's supplementary material feeding unit is related to.

Background

In the process of processing clothes, particularly when some large cut pieces are sewn, manual auxiliary feeding is usually required by an operator. However, the manual auxiliary feeding has high working strength, and the thrust and speed acting on the cut pieces are difficult to control, so that the stitch seam and sewing effect are easily influenced.

In order to solve the problems, Chinese patent CN 108589068A discloses an auxiliary feeding device which comprises two parts, wherein main auxiliary feeding is formed by a closed loop feeding rope arranged on a workbench, and secondary auxiliary feeding is formed by a tensioning force adjustable roller of a strip-shaped leaning block arranged on the workbench; two through holes are arranged on the workbench at intervals along the feeding direction, two ends of the feeding rope respectively penetrate through the corresponding through holes and are connected with each other to form a closed-loop feeding rope, a driving wheel and a driving wheel are respectively arranged on the rack below the workbench, the closed-loop feeding rope is sleeved outside the driving wheel and the driving wheel, the driving wheel is driven by a first motor to rotate so as to drive the closed-loop feeding rope to rotate, the roller wheel is driven by a rotary cylinder, and the two adjustable in tension force are matched with each other. The auxiliary feeding is carried out on the cutting part in the sewing process, so that the cloth is prevented from being wrinkled in the sewing process, and the smooth feeding is ensured.

However, the auxiliary feeding device still has the following defects: because cut-parts thickness is different, when the gyro wheel contacted with the cut-parts, had certain contained angle with the cut-parts, only the part wheel face of gyro wheel can contact with the cut-parts, and consequently the guide effect that can play is relatively poor to influence auxiliary feeding device's whole feeding performance, make the cut-parts produce the fold easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a sewing machine's supplementary material feeding unit, the utility model aims to solve the technical problem that: how to improve the feeding performance of the auxiliary feeding device.

The purpose of the utility model can be realized by the following technical proposal:

the auxiliary feeding device of the sewing machine comprises a table plate, wherein a conveying belt is arranged on the table plate along the feeding direction, and the auxiliary feeding device is characterized by further comprising a rotary driving source, a first oscillating bar and a second oscillating bar, wherein the rotary driving source is fixed on the table plate, the rear end of the first oscillating bar is fixedly connected with an output shaft of the rotary driving source, the front end of the first oscillating bar is hinged with the rear end of the second oscillating bar, a roller is rotatably arranged at the front end of the first oscillating bar, and the axial direction of the roller is perpendicular to the feeding direction.

The working principle is as follows: and placing the cloth on the bedplate, driving the first swing rod to swing through a rotary driving source until the roller on the second swing rod is attached to the cloth, and driving the cloth to move through a transmission belt. Because the first swing rod and the second swing rod are hinged, even if the thicknesses of the cloth materials are different, the second swing rod can be in direct contact with the cloth materials through the angle between the self-adjusting swing rod and the first swing rod, the guide effect is improved, and the integral feeding performance is further improved.

In the auxiliary feeding device of the sewing machine, an elastic element capable of applying downward pretightening force to the second swing link is arranged between the front end of the first swing link and the rear end of the second swing link. After the elastic piece is designed, when the roller on the second swing rod is contacted with the cloth, the roller can be attached to the cloth more tightly under the action of the pretightening force of the elastic piece, and the guiding effect is improved.

In the auxiliary feeding device of the sewing machine, a boss is arranged at the front end of the first swing rod, a first through hole is formed in the boss, a groove matched with the boss is formed in the rear end of the second swing rod, a second through hole aligned with the first through hole is formed in the groove, and a pin shaft is inserted into the first through hole and the second through hole at the same time; the groove is further internally fixed with a fixed shaft parallel to the pin shaft, the elastic piece is sleeved on the torsion spring on the fixed shaft, the rear end of the torsion spring is abutted against the upper surface of the boss, and the front end of the torsion spring is abutted against the bottom of the groove. When the roller is contacted with the cloth, the torsion spring can apply downward pretightening force to the roller.

In the auxiliary feeding device of the sewing machine, the mounting frame is fixed at the front end of the swing rod II, and the two ends of the roller are rotatably arranged on the mounting frame.

In the auxiliary feeding device of the sewing machine, the front end of the mounting frame is provided with the guide rod along the vertical direction, and the lower end of the guide rod is movably provided with the ball. When the swing rod enables the roller to be in contact with the cloth through swinging, the balls are designed to be in contact with the cloth to roll, and the problem that the end of the roller is in direct contact with the cloth to rub the cloth out of folds is avoided.

In foretell sewing machine's supplementary material feeding unit, the front end of mounting bracket is provided with the fixed block, the fixed block has seted up threaded hole along vertical direction, have on the guide bar with screw hole matched with external screw thread. Can be according to the cloth thickness of difference, the height of rotation guide bar, adjusting roller to adapt to different cloth thicknesses, guarantee the direction effect.

In the above auxiliary feeding device for a sewing machine, the rotary driving source includes a motor fixed to the table.

In the auxiliary feeding device of the sewing machine, the table plate is provided with the feeding groove, the feeding groove is internally provided with the driving wheel and the driven wheel, and the conveying belt is positioned in the feeding groove and sleeved on the driving wheel and the driven wheel. The driving wheel can be driven to rotate by a motor and the like, so that the driving belt is driven to move, and feeding is realized; this structure is prior art and will not be described further herein.

Compared with the prior art, the utility model has the advantages of it is following:

1. in the application, the first swing rod and the second swing rod are hinged, so that even if the thicknesses of the cloth are different, the second swing rod can be in direct contact with the cloth through self-adjustment of an angle between the second swing rod and the first swing rod, the whole wheel surface of a roller on the second swing rod is improved in guiding effect, and the whole feeding performance is improved;

2. after the ball is designed, the ball firstly contacts with the cloth to roll, and the end part of the roller is prevented from directly contacting with the cloth to rub the cloth out of folds.

Drawings

Fig. 1 is an isometric view of the present auxiliary feed device.

FIG. 2 is a schematic view of the connection structure of the first swing link and the second swing link.

In the figure, 1, a platen; 2. a conveyor belt; 3. a rotary drive source; 4. a first swing rod; 5. a second swing rod; 6. a boss; 7. a groove; 8. a fixed shaft; 9. a torsion spring; 10. a mounting frame; 11. a guide bar; 12. a ball bearing; 13. a fixed block; 14. a feed chute; 15. a driving wheel; 16. a driven wheel; 17. and (3) a roller.

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 fig. 1 and 2, the auxiliary feeding device comprises a platen 1, and a conveyor belt 2 is arranged on the platen 1 along the feeding direction, and is characterized by further comprising a rotary driving source 3, a first swing rod 4 and a second swing rod 5, wherein the rotary driving source 3 is fixed on the platen 1, the rear end of the first swing rod 4 is fixedly connected with an output shaft of the rotary driving source 3, the front end of the first swing rod 4 is hinged with the rear end of the second swing rod 5, a roller 17 is rotatably arranged at the front end of the first swing rod 4, and the axial direction of the roller 17 is perpendicular to the feeding direction. Specifically, the rotary drive source 3 includes a motor fixed to the platen 1. The table board 1 is provided with a feeding groove 14, a driving wheel 15 and a driven wheel 16 are arranged in the feeding groove 14, and the conveyor belt 2 is positioned in the feeding groove 14 and sleeved on the driving wheel 15 and the driven wheel 16.

Preferably, as shown in fig. 2, in order to improve the guiding effect of the roller 17, an elastic element capable of applying a downward pre-tightening force to the swing link two 5 is arranged between the front end of the swing link one 4 and the rear end of the swing link two 5. Specifically, in the embodiment, the front end of the first swing rod 4 is provided with a boss 6, the boss 6 is provided with a first through hole, the rear end of the second swing rod 5 is provided with a groove 7 matched with the boss 6, the groove 7 is provided with a second through hole aligned with the first through hole, and a pin shaft is inserted into the first through hole and the second through hole at the same time; still be fixed with the fixed axle 8 that parallels with the round pin axle in the recess 7, the elastic component is including the torsional spring 9 of cover locating on the fixed axle 8, and the rear end of torsional spring 9 supports and leans on in the upper surface of boss 6, and the bottom in recess 7 is supported and leaned on to the front end of torsional spring 9.

As shown in figure 1, in order to avoid wrinkles on the cloth, a mounting frame 10 is fixed at the front end of the swing rod II 5, and two ends of the roller 17 are rotatably arranged on the mounting frame 10. The front end of the mounting rack 10 is provided with a guide rod 11 along the vertical direction, and the lower end of the guide rod 11 is movably provided with a ball 12. And in order to adapt to different thickness cloth, the front end of mounting bracket 10 is provided with fixed block 13, and threaded hole has been seted up along vertical direction to fixed block 13, has the external screw thread with threaded hole matched with on the guide bar 11.

The working principle of the utility model is as follows: the cloth is placed on the bedplate 1, then the swing rod I4 is driven to swing through the rotary driving source 3 until the roller 17 on the swing rod II 5 is attached to the cloth, the torsion spring 9 can apply downward pretightening force to the roller 17, and then the cloth is driven to move through the transmission belt 2.

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.

Claims

1. The utility model provides a sewing machine's supplementary material feeding unit, supplementary material feeding unit includes platen (1), platen (1) is provided with conveyer belt (2) along the pay-off direction, its characterized in that, supplementary material feeding unit still includes rotary drive source (3), pendulum rod (4) and pendulum rod (5), rotary drive source (3) are fixed in on platen (1), the rear end of pendulum rod (4) links firmly with the output shaft of rotary drive source (3), the front end of pendulum rod (4) is articulated mutually with the rear end of pendulum rod (5), the front end of pendulum rod (4) is rotated and is provided with roller (17), the axial and the pay-off direction of roller (17) are perpendicular mutually.

2. The auxiliary feeding device of the sewing machine according to claim 1, characterized in that an elastic member capable of applying a downward pre-tightening force to the second swing link (5) is arranged between the front end of the first swing link (4) and the rear end of the second swing link (5).

3. The auxiliary feeding device of the sewing machine as claimed in claim 2, wherein a boss (6) is arranged at the front end of the swing rod I (4), a through hole I is formed in the boss (6), a groove (7) matched with the boss (6) is formed in the rear end of the swing rod II (5), a through hole II aligned with the through hole I is formed in the groove (7), and a pin shaft is inserted into the through hole I and the through hole II at the same time; still be fixed with in recess (7) with fixed axle (8) that the round pin axle parallels, the elastic component is located including the cover torsional spring (9) on fixed axle (8), the rear end of torsional spring (9) support by in the upper surface of boss (6), the bottom in recess (7) is supported by to the front end of torsional spring (9).

4. The auxiliary feeding device of the sewing machine according to claim 1, 2 or 3, characterized in that a mounting frame (10) is fixed at the front end of the swing rod II (5), and two ends of the roller (17) are rotatably arranged on the mounting frame (10).

5. Auxiliary feeding device according to claim 4, characterized in that the front end of the mounting frame (10) is provided with a guide rod (11) along the vertical direction, and the lower end of the guide rod (11) is movably provided with a ball (12).

6. The auxiliary feeding device of the sewing machine according to claim 5, wherein a fixing block (13) is arranged at the front end of the mounting frame (10), the fixing block (13) is provided with a threaded hole along the vertical direction, and the guide rod (11) is provided with an external thread matched with the threaded hole.

7. The auxiliary feeding device of a sewing machine according to claim 1, characterized in that the rotary driving source (3) comprises a motor fixed to the table (1).

8. The auxiliary feeding device of the sewing machine according to claim 1, characterized in that a feeding groove (14) is formed in the platen (1), a driving wheel (15) and a driven wheel (16) are arranged in the feeding groove (14), and the conveyor belt (2) is positioned in the feeding groove (14) and sleeved on the driving wheel (15) and the driven wheel (16).