CN221071841U - Cloth feeding structure of sewing machine - Google Patents

Abstract

The utility model belongs to the technical field of cloth feeding of sewing machines, in particular to a cloth feeding structure of a sewing machine, which comprises a workbench, a sewing machine working group, a cloth feeding device and a pressing device; a sewing machine working group is arranged at one end above the workbench, a pressing device is arranged at one end inside the sewing machine working group, a cloth feeding plate is arranged in the middle of the top of the workbench, and a cloth feeding device is arranged inside the workbench below the cloth feeding plate; through setting up the work feed arrangement, when sewing machine sews up the during operation, at the normal during operation of motor, drive the screw rod through the belt and rotate, carry out spacing cooperation by the spacing wheel of screw rod cooperation, through installing the guide arm on the push plate, under the drive of spacing wheel for the push plate promotes work feed plate cooperation I-shaped press the briquetting and carries out nimble work feed, also presses the gyro wheel at the cooperation simultaneously, thereby control work feed speed when making the machine function, and make work feed process steady, the skew can not take place for the cloth.

Description

Cloth feeding structure of sewing machine

Technical Field

The utility model belongs to the technical field of cloth feeding of sewing machines, and particularly relates to a cloth feeding structure of a sewing machine.

Background

The sewing machine is a machine which uses one or more sewing threads to form one or more types of stitch on the sewing materials, so that one or more layers of the sewing materials are interwoven or sewn together, and the cloth feeding structure is an important component of the sewing machine, and ensures the normal operation of sewing by realizing the automatic feeding of cloth.

In the prior art, the existing sewing machine generally comprises a needle bar material punching mechanism, a jumper wire mechanism, a differential adjusting mechanism, a cloth feeding mechanism, a curved needle thread hooking mechanism and the like, wherein in the material sewing process, the differential adjusting mechanism is adjusted through normal work of the sewing machine, cloth is placed into the cloth feeding mechanism after adjustment is completed, and the sewing and feeding of the cloth are carried out through the matching of the thread adjusting mechanism and the curved needle thread hooking mechanism.

In the prior art, when the cloth enters the cloth feeding mechanism in the cloth sewing process, the cloth feeding speed is uneven when the machine operates, and folds are generated in the cloth feeding process, so that the cloth is deviated, and the quality of a product is reduced or damaged; accordingly, a cloth feeding structure of a sewing machine is proposed for the above-mentioned problems.

Disclosure of utility model

In order to make up the defects in the prior art, solve the problems that when cloth in the prior art enters a cloth feeding mechanism, the cloth feeding speed is uneven when a machine operates, and the cloth feeding process is wrinkled, so that the cloth is deviated, and the cloth feeding structure of the sewing machine is provided.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a cloth feeding structure of a sewing machine, which comprises a workbench; a sewing machine working group is arranged on one side of the upper part of the workbench, a pressing device is arranged on one side of the sewing machine working group, a cloth feeding plate is arranged in the middle of the upper part of the workbench, a cloth feeding device is arranged below the cloth feeding plate, the cloth feeding device is arranged at one end inside the workbench, and a transmission device is arranged below the cloth feeding device;

the cloth feeding device comprises a guide rod, the guide rod is arranged at the middle position of the transmission device, a pushing plate is sleeved on the guide rod, a limiting block is arranged on the upper portion of one side of the pushing plate, a pin shaft A is arranged on the lower portion of one side of the pushing plate, a swinging rod is sleeved on the pin shaft A, a fixing rod A is arranged at one end of the swinging rod, a pin shaft B is arranged at the other end of the swinging rod, a pushing wheel is sleeved on the pin shaft B, a fixing rod B is arranged at the middle position of the bottom end of the pushing plate, and the fixing rod B is in limiting connection with the fixing rod A through a spring B.

Preferably, the sewing machine work set comprises a sewing machine head, the sewing machine head is arranged above the workbench, the bottom end of the sewing machine head is provided with a connecting block, an I-shaped pressing block is arranged below the connecting block, a needle is arranged at the bottom of the I-shaped pressing block, and the sewing machine is convenient to detach during later maintenance and maintenance through split type arrangement.

Preferably, the pressing device is installed to sewing machine group one side, the pressing device includes the casing, the casing is installed in one side of sewing machine aircraft nose, connecting plate A is installed at the inboard top of casing, spring A is installed to connecting plate A's below, spring A is five altogether and is the style of calligraphy and arrange and place, connecting plate B is installed to spring A below, mount C is installed at connecting plate B bottom both ends, gyro wheel B is installed to mount C's intermediate position, gear B is installed to gyro wheel's pivot one end, is carrying out the pay-off in-process, arranges through the style of calligraphy and places, can make gyro wheel both ends atress even, can play the effect of pressing material and flattening to the cloth.

Preferably, the transmission is installed to the inside other end of workstation, transmission includes motor B, motor B installs the inside at the workstation, install belt pulley C in motor B's the axis of rotation, mount B is installed to motor B's one side, mount B's intermediate position is provided with gyro wheel A, belt pulley D is installed to the one end of gyro wheel A axle, and belt pulley D passes through belt B and pulley C rotation to be connected, gear A is installed in belt pulley D's the outside, drives gyro wheel A with the motor, control the speed of work feed.

Preferably, the power device and the pressing device are positioned on the same plane, and the gear A and the gear B are meshed for rotation, so that the transmission device is convenient for driving the pressing device to flatten the cloth.

Preferably, the cloth feeding device comprises a motor A, the motor A is installed on one side of the inside of a workbench, a belt pulley A is installed on the rotating shaft of the motor A, a fixing frame A is installed at the middle position of the inside of the workbench, a spool is installed at the middle position of the bottom of the fixing frame A, a screw A and a screw B are installed in the middle of the fixing frame A, both ends of the screw A and the screw B extend to the outer side of the fixing frame A, a belt pulley B is installed at one end of the screw A, the belt pulley B is in transmission connection with the belt pulley A through a belt A, a rotary disc is installed at the other end of the screw A, a limiting disc is coaxially installed on the rotary disc, a transmission rod is installed on one side of the end face of the rotary disc, a special disc is installed at one end of the screw B, the screw B is matched with the transmission rod on the screw A through an independent transmission mechanism, and power is conveniently and directly transmitted for the cloth feeding device, and later maintenance is also convenient to detach.

The utility model has the beneficial effects that:

The utility model provides a cloth feeding structure of a sewing machine, wherein a cloth feeding device is arranged, a sewing machine working group at one side of the upper part of a workbench is started in the cloth sewing process, a pressing device at one side of the sewing machine working group is started at the same time, when cloth enters a cloth feeding plate through the pressing device, a motor A is started, a belt pulley A is matched with a belt A to drive a belt pulley B to rotate under the rotation of the belt pulley A on the rotating shaft of the motor A, a screw A on the belt pulley B is rotated under the fixation of a fixed block A, a transmission rod on a turntable at the other end of the screw A is rotated, the transmission rod is matched with a special-shaped disc, the screw B on the special-shaped disc is rotated under the fixation of the fixed block A, a push wheel meshed with threads is pushed to move through the rotation of the screw B, the push wheel is enabled to move in a straight line under the limit of a guide rod through the limit of a pin shaft B, and when the push wheel moves to one end of the screw B, the push wheel is enabled to be converted to reciprocate under the cooperation of a spring B and a fixed rod B.

Through setting up pressing device at starter motor B, under motor B axis of rotation's belt pulley C rotates, cooperation belt B drives belt pulley D and rotates, under mount B's cooperation, make gyro wheel A rotate, gear A of gyro wheel A one end rotates with the same time, through gear A and gear B meshing transmission, make gyro wheel B rotate under mount C's fixed, simultaneously under the cooperation of mount C top connecting plate B and spring A and connecting plate A, can make gyro wheel B buffer from top to bottom remove, thereby carry out the operation of spreading to the cloth, can control the feed speed when the machine operates, and make the feed process steady, the cloth can not take place the skew, thereby improve production quality.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic overall construction;

FIG. 2 is an overall partial cross-sectional view;

FIG. 3 is a schematic diagram of the pressing device and the power device;

FIG. 4 is a schematic overall construction of a transmission;

FIG. 5 is a diagram of the transmission between two screws;

FIG. 6 is a schematic diagram of the motion of the drive and feed mechanism;

FIG. 7 is a schematic view of a cloth feeding apparatus;

legend description:

1. A work table; 2. a transmission device; 201. a motor A; 202. a belt pulley A; 203. a belt A; 204. a fixing frame A; 205. a screw A; 206. a screw B; 207. a belt pulley B; 208. a turntable; 209. a limiting disc; 210. a transmission rod; 211. a profiled disc; 3. a power device; 301. a motor B; 302. a belt pulley C; 303. a fixing frame B; 304. a roller A; 305. a belt pulley D; 306. a gear A; 307. a belt B; 4. a pressing device; 401. a housing; 402. a connecting plate A; 403. a spring A; 404. a connecting plate B; 405. a fixing frame C; 406. a roller B; 407. a gear B; 5. a sewing machine working group; 501. a sewing machine head; 502. a connecting block; 503. pressing the I-shaped pressing block; 504. a needle; 6. a cloth feeding plate; 7. a spool; 8. a cloth feeding device; 801. a guide rod; 802. a pushing plate; 803. a limiting block; 804. a pin A; 805. a swinging rod; 806. a fixed rod A; 807. a pin B; 808. a push wheel; 809. a fixed rod B; 810. and a spring B.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Specific examples are given below.

Referring to fig. 1-7, the present utility model provides a cloth feeding structure of a sewing machine, comprising a workbench 1; a sewing machine working group 5 is arranged on one side of the upper part of the workbench 1, a pressing device 4 is arranged on one side of the sewing machine working group 5, a cloth feeding plate 6 is arranged in the middle of the upper part of the workbench 1, a cloth feeding device 8 is arranged below the cloth feeding plate 6, the cloth feeding device 8 is arranged at one end inside the workbench 1, and a transmission device 2 is arranged below the cloth feeding device 8;

The cloth feeding device 2 comprises a motor A201, the motor A201 is arranged on one side of the inside of a workbench 1, a belt pulley A202 is arranged on a rotating shaft of the motor A201, a fixing frame A204 is arranged in the middle of the inside of the workbench 1, a spool 7 is arranged in the middle of the bottom of the fixing frame A204, a screw A205 and a screw B206 are arranged in the middle of the fixing frame A204, both ends of the screw A205 and both ends of the screw B206 extend to the outer side of the fixing frame A204, a belt pulley B207 is arranged at one end of the screw A205, the belt pulley B207 is in transmission connection with the belt pulley A202 through a belt A203, a rotary disc 208 is arranged at the other end of the screw A205, a limiting disc 209 is coaxially arranged on the rotary disc 208, a transmission rod 210 is arranged at one side of the end face of the rotary disc 208, a special-shaped disc 211 is arranged at one end of the screw B206, and the screw B206 is matched with the transmission rod 210 on the screw A205 to rotate through the special-shaped disc 211;

The upper portion of screw rod A205 and screw rod B206 is provided with feed device 8, feed device 8 includes guide arm 801, the intermediate position at mount A204 is installed to guide arm 801, the cover is equipped with push plate 802 on the guide arm 801, stopper 803 is installed to push plate 802 one side upper portion, round pin axle A804 is installed to one side lower part of push plate 802, the cover is equipped with swinging arms 805 on round pin axle A804, dead lever A806 is installed to swinging arms 805 one end, round pin axle B807 is installed to swinging arms 805 other end, the cover is equipped with push wheel 808 on round pin axle B807, dead lever B809 is installed to push plate 802 bottom intermediate position, dead lever B809 passes through spring B810 and is connected with dead lever A806 spacing.

During operation, in the process of sewing cloth, the sewing machine working set 5 on one side of the upper part of the workbench 1 is started, meanwhile, the pressing device 4 on one side of the sewing machine working set 5 is started, when cloth enters the cloth feeding plate 6 through the pressing device 4, the motor A201 is started, the belt pulley A202 on the rotating shaft of the motor A201 is rotated in cooperation with the belt A203 to drive the belt pulley B207 to rotate, the screw A205 on the belt pulley B207 is rotated under the fixation of the fixing frame A204, the transmission rod 210 on the turntable 208 on the other end of the screw A205 is rotated, the transmission rod 210 is matched with the special-shaped disc 211, the screw B206 on the special-shaped disc 211 is rotated under the fixation of the fixing frame A204, the pushing wheel 808 meshed on threads is pushed to move through the rotation of the screw B206, the limit of the pin shaft B807 is used for enabling the pushing plate 802 to perform linear motion under the limit of the guide rod 801, and when the pushing wheel 808 moves to one end of the screw B206, the block on one end of the screw B206 is matched with the spring B810 and the fixing rod A806 to convert the pushing wheel 808 into reciprocating motion of the screw A808.

Further, the sewing machine working set 5 includes a sewing machine head 501, the sewing machine head 501 is installed above the workbench 1, a connection block 502 is installed at the bottom end of the sewing machine head 501, an i-shaped pressing block 503 is installed below the connection block 502, and a needle 504 is installed at the bottom of the i-shaped pressing block 503.

In operation, when sewing a cloth, the sewing machine head 501 is started, the i-shaped pressing block 503 presses the cloth through the connecting block 502, and the sewing of the cloth is performed through the needle 504 on the i-shaped pressing block 503.

Further, the pressing device 4 is installed on one side of the sewing machine working set 5, the pressing device 4 comprises a machine shell 401, the machine shell 401 is installed on one side of the sewing machine head 501, a connecting plate A402 is installed at the top of the inner side of the machine shell 401, springs A403 are installed below the connecting plate A402, five groups of springs A403 are arranged in a straight line, a connecting plate B404 is installed below the springs A403, fixing frames C405 are installed at two ends of the bottom of the connecting plate B404, a roller B406 is installed at the middle position of the fixing frames C405, a gear B407 is installed at one end of a rotating shaft of the roller B406, a power device 3 is installed at the other end of the inner side of the working table 1, the power device 3 comprises a motor B301, a fixing frame B303 is installed on one side of the motor B301, a roller A304 is arranged at the middle position of the fixing frame B303, a belt pulley D305 is installed at one end of a belt pulley A304 shaft, a belt D305 is installed at the other end of the belt D305 and is meshed with the gear B306, and the power device 3 is meshed with the gear B306 on the outer side of the power device 4 through the gear B305.

During operation, when cloth is sewn, through the starting motor B301, under the rotation of the belt pulley C302 on the rotation shaft of the motor B301, the belt B307 is matched to drive the belt pulley D305 to rotate, under the matching of the fixing frame B303, the roller A304 rotates, meanwhile, the gear A306 at one end of the roller A304 rotates, the roller B406 rotates under the fixation of the fixing frame C405 through the meshing transmission of the gear A306 and the gear B407, and meanwhile, the roller B406 can move in an up-down buffering mode under the matching of the connecting plate B404, the spring A403 and the connecting plate A402 above the fixing frame C405, so that the cloth is flattened.

Working principle: when the cloth is sewn, the sewing machine head 501 is started, the I-shaped pressing block 503 is pressed by the connecting block 502, the cloth is sewn by the needle 504 on the I-shaped pressing block 503, the motor B301 is started, the belt pulley C302 on the rotating shaft of the motor B301 rotates, the belt pulley B307 is matched with the belt pulley D305 to rotate, the roller A304 rotates under the matching of the fixing frame B303, the gear A306 at one end of the roller A304 rotates, the roller B406 rotates under the fixing of the fixing frame C405 through the meshing transmission of the gear A306 and the gear B407, the roller B406 can move up and down in a buffering way under the matching of the connecting plate B404, the spring A403 and the connecting plate A402 above the fixing frame C405, the sewing machine working group 5 at one side of the upper part of the working table 1 is started, the pressing device 4 at one side of the sewing machine working group 5 is started at the same time, when cloth enters the cloth feeding plate 6 through the pressing device 4, a motor A201 is started, a belt A203 is matched to drive a belt pulley B207 to rotate under the rotation of a belt pulley A202 on the rotating shaft of the motor A201, a screw A205 on the belt pulley B207 rotates under the fixation of a fixed frame A204, a transmission rod 210 on a turntable 208 at the other end of the screw A205 rotates, a screw B206 on the special-shaped disc 211 rotates under the fixation of the fixed frame A204 through the mutual cooperation of the transmission rod 210 and the special-shaped disc 211, a push wheel 808 engaged on threads is pushed to move through the rotation of the screw B206, the push plate 802 moves linearly under the limitation of a guide rod 801 through the limitation of a pin shaft B807, when the push wheel 808 moves to one end of the screw B206, under the cooperation of a stop block on one end of the screw B206 and a spring B810 and a fixed rod A806 and a fixed rod B809, so that the pushing wheel 808 is converted to the screw A205 for reciprocating motion, the cloth feeding speed can be controlled during the operation of the machine, the cloth feeding process is stable, and the cloth cannot deviate.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. A sewing machine work feed structure, its characterized in that: comprises a workbench (1); a sewing machine working group (5) is arranged on one side of the upper part of the workbench (1), a pressing device (4) is arranged on one side of the sewing machine working group (5), a cloth feeding plate (6) is arranged in the middle of the upper part of the workbench (1), a cloth feeding device (8) is arranged below the cloth feeding plate (6), the cloth feeding device (8) is arranged at one end inside the workbench (1), and a transmission device (2) is arranged below the cloth feeding device (8);

The cloth feeding device (8) comprises a guide rod (801), the guide rod (801) is arranged at the upper position of the transmission device (2), a pushing plate (802) is sleeved on the guide rod (801), a limiting block (803) is arranged on one side upper portion of the pushing plate (802), a pin shaft A (804) is arranged on one side lower portion of the pushing plate (802), a swinging rod (805) is sleeved on the pin shaft A (804), a fixing rod A (806) is arranged at one end of the swinging rod (805), a pin shaft B (807) is arranged at the other end of the swinging rod (805), a pushing wheel (808) is sleeved on the pin shaft B (807), a fixing rod B (809) is arranged at the middle position of the bottom end of the pushing plate (802), and the fixing rod B (809) is in limiting connection with the fixing rod A (806) through a spring B (810).

2. A cloth feeding structure of a sewing machine according to claim 1, wherein: the sewing machine working set (5) comprises a sewing machine head (501), the sewing machine head (501) is arranged above the workbench (1), a connecting block (502) is arranged at the bottom end of the sewing machine head (501), an I-shaped pressing block (503) is arranged below the connecting block (502), and a needle (504) is arranged at the bottom of the I-shaped pressing block (503).

3. A cloth feeding structure of a sewing machine according to claim 2, wherein: the utility model discloses a sewing machine, including sewing machine work group (5), push device (4) are installed to sewing machine work group (5) one side, push device (4) include casing (401), one side at sewing machine aircraft nose (501) is installed to casing (401), connecting plate A (402) are installed at the inboard top of casing (401), spring A (403) are installed to the below of connecting plate A (402), spring A (403) are five altogether, and spring A (403) are the style of calligraphy and arrange and place, connecting plate B (404) are installed to spring A (403) below, mount C (405) are installed at connecting plate B (404) bottom both ends, gyro wheel B (406) are installed to the intermediate position of mount C (405), gear B (407) are installed to pivot one end of gyro wheel B (406).

4. A cloth feeding structure of a sewing machine according to claim 1, wherein: the utility model discloses a motor, including workstation (1), workstation (1) inside other end installs power device (3), power device (3) include motor B (301), motor B (301) are installed in the inside of workstation (1), install belt pulley C (302) in the axis of rotation of motor B (301), mount B (303) are installed to one side of motor B (301), the intermediate position of mount B (303) is provided with gyro wheel A (304), belt pulley D (305) are installed to the one end of gyro wheel A (304) axle, and belt pulley D (305) are connected with belt pulley C (302) rotation through belt B (307), gear A (306) are installed in the outside of belt pulley D (305).

5. The cloth feeding structure of a sewing machine according to claim 4, wherein: the power device (3) and the pressing device (4) are on the same plane, and the gear A (306) and the gear B (407) are meshed for rotation.

6. A cloth feeding structure of a sewing machine according to claim 1, wherein: the transmission device (2) comprises a motor A (201), one side inside a workbench (1) is installed to the motor A (201), belt pulley A (202) is installed in the rotation axis of motor A (201), mount A (204) is installed to the inside intermediate position of workbench (1), spool (7) are installed to the bottom intermediate position of mount A (204), screw A (205) and screw B (206) are installed to mount A (204) mid-mounting, and both ends of screw A (205) and screw B (206) all extend to the outside of mount A (204), belt pulley B (207) are installed to the one end of screw A (205), and belt pulley B (207) are connected with belt pulley A (202) transmission through belt A (203), carousel (208) are installed to the screw A (205) other end, limit plate (209) are installed on the coaxial, drive rod (210) is installed to carousel (208) terminal surface one side, abnormal shape dish (211) is installed to screw B (206) one end, abnormal shape B (206) realizes through on screw A (211) the cooperation of screw rod (210).