CN214300665U

CN214300665U - Sewing machine

Info

Publication number: CN214300665U
Application number: CN202120119172.6U
Authority: CN
Inventors: 李广
Original assignee: Shaanxi Jinyi Clothing Co ltd
Current assignee: Shaanxi Jinyi Clothing Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-09-28
Anticipated expiration: 2031-01-15

Abstract

The utility model relates to a sewing machine relates to the field of sewing machine equipment technique, and it includes workstation, aircraft nose, fixed subassembly, feed assembly and tensioning assembly, the aircraft nose with workstation fixed connection, fixed subassembly include registration roller and connecting plate, the connecting plate be located workstation one side and with workstation fixed connection, registration roller and connecting plate are connected, feed assembly drive cloth removes from the direction that the registration roller orientation is close to the aircraft nose, tensioning assembly includes gear, fifth wheel and first motor, gear and registration roller one end fixed connection, fixedly connected with tooth on the fifth wheel, the fifth wheel passes through tooth and gear engagement, first motor is used for the drive the fifth wheel rotates. When the cloth is processed, the first motor drives the connecting wheel to rotate so as to drive the positioning roller to rotate intermittently, so that the cloth is kept in a tensioning state in the feeding process, and the problem of wrinkles generated when the cloth is processed is reduced. This application has the effect that can improve sewing machine to the processingquality of cloth.

Description

Sewing machine

Technical Field

The application relates to the field of sewing machine equipment technology, in particular to a sewing machine.

Background

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient.

At present, the correlation technique discloses a sewing machine as application number 202011005698.8's application document, and it includes sewing device, stop device and vertical accent belting, vertical accent belting is used for vertically finely tuning the position of trousers waistband and dials the pincher trees of flat trousers waistband, stop device is used for restricting the position off tracking of trousers waistband at the sewing in-process, stop device includes spacing, locating plate and branch medium plate, spacing is located sewing device's feed end front side, spacing up end and sewing device's faller face are in on same horizontal plane, the up end at spacing is fixed to the locating plate, form between locating plate and the spacing and press from both sides the groove, divide medium plate slidable mounting on spacing, divide the medium plate slip business turn over to press from both sides the groove. The sewing machine has high production efficiency in the working process.

In view of the above-mentioned related technologies, the inventor believes that when a cloth is fed, the cloth cannot be flattened and kept in a tensioned state, and when the cloth is processed by a sewing machine, wrinkles are likely to occur in the cloth, which causes stitch deviation, and results in poor quality of a processed finished product.

SUMMERY OF THE UTILITY MODEL

In order to improve the processing quality of sewing machine to the cloth, this application provides a sewing machine.

The application provides a sewing machine adopts following technical scheme:

the utility model provides a sewing machine, includes workstation, aircraft nose, fixed subassembly, feed assembly and tensioning assembly, the aircraft nose with workstation fixed connection, fixed subassembly includes registration roller and connecting plate, the connecting plate is equipped with two, the connecting plate be located workstation one side and with workstation fixed connection, registration roller one end one-to-one is connected with a connecting plate, feed assembly drive cloth is followed the registration roller orientation is close to the direction of aircraft nose removes, tensioning assembly includes gear, fifth wheel and first motor, the gear with registration roller one end fixed connection, fixedly connected with tooth on the fifth wheel, the fifth wheel passes through tooth with gear engagement, first motor is used for the drive the fifth wheel rotates.

Through adopting above-mentioned technical scheme, to the cloth course of working, overlap the cloth reel on the registration roller, then drive cloth one end orientation through the feeding subassembly and remove near the direction of aircraft nose, in the feeding process, start first motor, first motor drive fifth wheel rotates, drive the tooth rotation when the fifth wheel rotates, make the fifth wheel interval fixed time can drive gear revolve, drive the registration roller during gear revolve, thereby make the registration roller interval fixed time just can drive the cloth reel orientation and keep away from the direction removal of aircraft nose, thereby make the cloth keep the tensioning state at the feeding in-process, reduce the cloth and take place the problem of fold when adding man-hour, improve the processingquality of sewing machine to the cloth.

Optionally, the fixed component further comprises two connecting rollers, one connecting roller is in one-to-one correspondence with one connecting plate and is connected with the connecting plate in a rotating mode, and the positioning roller and the connecting roller are detachably connected.

Through adopting above-mentioned technical scheme, when the cloth on the cloth reel was processed, lift off the registration roller from connecting the roller, establish new cloth reel cover on the registration roller after that, then with the registration roller with connect the roller fixed can, be favorable to changing the cloth reel fast.

Optionally, the fixing assembly further comprises a fastener, fixture blocks are welded at two ends of the positioning roller, a clamping groove is formed in one side, close to the connecting roller, of the connecting roller, the positioning roller is clamped in the clamping groove through the fixture blocks, and the fastener is used for fixedly connecting the connecting roller and the positioning roller.

By adopting the technical scheme, when the positioning roller is disassembled, the fastener is unscrewed, and then the fixture block slides along the clamping groove, so that the positioning roller and the connecting roller can be disassembled; after locating the registration roller with new cloth reel cover, align fixture block and draw-in groove, then promote the fixture block and slide along the draw-in groove inner wall, rotate the fastener after that to it is fixed with registration roller and connecting roller, above-mentioned operation simple structure, the operation of being convenient for has further improved the efficiency of changing the cloth reel.

Optionally, the feeding assembly comprises a supporting plate, two lower pressing rollers, two upper pressing rollers and two second motors, the supporting plate is fixedly connected with the workbench, one end of each lower pressing roller corresponds to one supporting plate in a rotating mode and is connected with the corresponding supporting plate in a rotating mode, and one end of each upper pressing roller corresponds to one supporting plate in a rotating mode and is connected with the corresponding supporting plate in a rotating mode.

Through adopting above-mentioned technical scheme, pass last compression roller and down between the compression roller with cloth one end, make cloth upper surface and lower surface respectively with last compression roller and lower compression roller contact, then the compression roller rotates under the drive of second motor, make the cloth driven the conveying under the relative frictional effect of last compression roller and lower compression roller, this kind of transfer mode makes the cloth remain stable at the transmission in-process, reduce the problem that the cloth leads to jumping from top to bottom because of the machine vibrations, the processingquality of sewing machine to the cloth has been improved.

Optionally, the surfaces of the upper press roll and the lower press roll are provided with anti-skid grains.

Through adopting above-mentioned technical scheme, antiskid line can reduce the cloth and produce the problem of relative slip between last compression roller and lower compression roller, has effectively improved the reliability of feeding subassembly feeding.

Optionally, the supporting plate is provided with an adjusting block, the adjusting block is connected with the supporting plate in a sliding mode, and the upper pressing roller is connected with the adjusting block in a rotating mode.

Through adopting above-mentioned technical scheme, when the cloth of different thickness of needs processing, slide the regulating block along the backup pad, the compression roller removes in the drive when the regulating block slides to the interval between compression roller and the lower compression roller is gone up in the adjustment, can convey the cloth of different thickness, has improved sewing machine's application scope.

Optionally, a bearing is fixedly connected to the adjusting block, and the upper press roller is fixedly connected to the inner ring of the bearing.

Through adopting above-mentioned technical scheme, the bearing makes the pressure roller pivoted more smooth, reduces the vibrations that the workstation produced, further guarantees sewing machine's processingquality.

Optionally, the support plate is provided with scales along the vertical direction.

Through adopting above-mentioned technical scheme, when adjusting the height of going up the compression roller, operating personnel can accurately learn the interval between compression roller and the lower compression roller through the scale to be convenient for the displacement of accurate control top roll, be favorable to improving work efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sewing machine is provided with the tensioning assembly, the tensioning assembly comprises a gear, a connecting wheel and a first motor, the first motor drives the connecting wheel to rotate in the feeding process, the connecting wheel drives the gear to rotate once at fixed intervals, and therefore the positioning rollers drive the cloth winding drum to move towards the direction far away from the machine head at fixed intervals, the cloth is kept in a tensioning state in the feeding process, and the processing quality of the cloth is improved;

2. the application provides a pair of sewing machine is equipped with the connecting roll, and the registration roller can be dismantled with the connecting roll and be connected, is convenient for change the cloth reel fast, has improved work efficiency.

Drawings

FIG. 1 is a schematic view showing an overall structure of a sewing machine according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a fixing assembly and a tensioning assembly of an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a feed assembly in an embodiment of the present application;

fig. 4 is an enlarged view of a portion a in fig. 3.

Description of reference numerals: 1. a work table; 11. a receiving table; 111. a working groove; 2. a machine head; 3. a fixing assembly; 31. a connecting plate; 32. a connecting roller; 321. a card slot; 322. a threaded hole; 33. a positioning roller; 331. a clamping block; 34. a fastener; 4. a tension assembly; 41. a gear; 42. a connecting wheel; 421. teeth; 43. a first motor; 5. a feed assembly; 51. a support plate; 511. a chute; 522. calibration; 52. a lower press roll 521, anti-skid lines; 53. a second motor; 54. an adjusting block; 541. a slider; 542. a through hole; 543. a bearing; 544. carrying out top thread; 55. and (4) pressing the rolls.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a sewing machine. Referring to fig. 1, a sewing machine includes a table 1, a head 2, a fixing assembly 3, a tensioning assembly 4, and a feeding assembly 5.

Referring to fig. 1 and 2, the working table 1 is rectangular, the machine head 2 is welded with the working table 1, the working table 1 is welded with the receiving table 11 under the machine head 2, the receiving table 11 is provided with a working groove 111, the fixing component 3 is positioned on the upper surface of the working table 1, the fixing component 3 comprises two connecting plates 31, two connecting rollers 32, two positioning rollers 33 and fasteners 34, the connecting plates 31 are welded with the upper surface of the working table 1, the connecting rollers 32 are provided with two connecting rollers 32, one connecting roller 32 is in one-to-one correspondence to one connecting plate 31, the rotating axis of the connecting roller 31 is parallel to the length direction of the working table 1, the end walls of the two connecting rollers 32 close to each other are provided with clamping grooves 321, the two ends of the positioning rollers 33 are welded with clamping blocks 331, the positioning rollers 33 are clamped in the clamping grooves 321 through the clamping blocks 331, the connecting rollers 32 are provided with threaded holes 322, the fasteners 34 are bolts, the fasteners 34 are in threaded connection with the inner walls of the threaded holes 322, one end of the fastener 34 located in the threaded hole 322 abuts against the latch 331.

Referring to fig. 1 and 2, the tensioning assembly 4 comprises a gear 41, a connecting wheel 42 and a first motor 43, the gear 41 and the connecting roller 32 are coaxially welded, a housing of the first motor 43 is fixedly connected with the workbench 1 by screws, the connecting wheel 42 is fixedly connected with an output shaft of the first motor 43 by keys, a plurality of teeth 421 are welded on the connecting wheel 42, and the connecting wheel 42 is meshed with the gear 41 through the teeth 421. The first motor 43 drives the connecting wheel 42 to rotate, so that the connecting wheel 42 drives the gear 41 to rotate at intervals of fixed time, the positioning roller 33 is driven to rotate once at intervals of fixed time, and the cloth can be kept in a tensioning state in the feeding process.

Referring to fig. 3 and 4, the feeding assembly 5 includes two supporting plates 51, a lower pressing roller 52, a second motor 53, an adjusting block 54 and an upper pressing roller 55, the supporting plates 51 are welded to the workbench 1, one end of the lower pressing roller 52 is connected to one supporting plate 51 in a one-to-one correspondence manner, a rotation axis of the lower pressing roller 52 is parallel to the length direction of the workbench 1, the surface of the lower pressing roller 52 is provided with an anti-slip pattern 521, a casing of the second motor 53 is fixedly connected to the workbench 1 by screws, an output shaft of the second motor 53 is fixedly connected to one end of the lower pressing roller 52 by a key, the adjusting block 54 is welded with a sliding block 541, one side of the supporting plates 51 close to each other is provided with a sliding groove 511 along the vertical direction, the adjusting block 54 is slidably connected to the sliding groove 511 by the sliding block 541, the adjusting block 54 is provided with a through hole 542, a bearing 543 is arranged in the through hole 542, the tolerance of the outer diameter of the bearing 543 and the inner diameter of the through hole 542 is matched as a fit, the upper pressing roller 55 penetrates through the inner ring of the bearing 543, the tolerance fit between the outer diameter of the upper pressing roller 55 and the inner ring of the bearing 543 is interference fit, the surface of the upper pressing roller 55 is provided with anti-skid threads 521, the rotation axis of the upper pressing roller 55 is parallel to the length direction of the workbench 1, the adjusting block 54 is in threaded connection with a jackscrew 544, and the adjusting block 54 and the supporting plate 51 are fixed by the jackscrew 544; the support plate 51 is provided with a scale 522 along the vertical direction.

The implementation principle of the sewing machine in the embodiment of the application is as follows: when the cloth is processed, the cloth winding drum is sleeved on the positioning roller 33, then the clamping block 331 is clamped on the inner wall of the clamping groove 321, and the positioning roller 33 and the connecting roller 32 are fixed by rotating the fastening piece 34.

Then, one end of the cloth penetrates between the upper pressing roller 55 and the lower pressing roller 52, the adjusting block 54 slides along the supporting plate 51, the supporting plate 51 drives the upper pressing roller 55 to slide when sliding, so that the distance between the upper pressing roller 55 and the lower pressing roller 52 is adjusted, the upper pressing roller 55 and the lower pressing roller 52 tightly press the cloth, and the scales 522 are observed in the sliding process to ensure that the sliding distance of the upper pressing roller 55 can be accurately controlled, so that the cloth is matched with the thickness of the cloth.

Then, the second motor 53 is started, the second motor 53 drives the lower pressing roller 52 to rotate, and the cloth is driven to be conveyed forward by the friction force generated by the rotation of the lower pressing roller 52.

Start first motor 43 when starting second motor 53, the output shaft of first motor 43 drives fifth wheel 42 and rotates, and drive gear 41 intermittent type when fifth wheel 42 rotates and rotate, drives connecting roll 32 and rotates when gear 41 rotates to drive registration roller 33 and cloth reel and rotate, the cloth reel orientation keeps away from the direction intermittent type rotation of aircraft nose 2, makes the feeding process of cloth remain the tensioning state throughout, and then improves the processingquality of sewing machine to the cloth.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A sewing machine characterized by: comprises a workbench (1), a machine head (2), a fixing assembly (3), a feeding assembly (5) and a tensioning assembly (4), wherein the machine head (2) is fixedly connected with the workbench (1), the fixing assembly (3) comprises a positioning roller (33) and a connecting plate (31), the connecting plate (31) is provided with two parts, the connecting plate (31) is positioned on one side of the workbench (1) and is fixedly connected with the workbench (1), one end of the positioning roller (33) corresponds to one connecting plate (31) one by one, the feeding assembly (5) drives cloth to move from the positioning roller (33) towards the direction close to the machine head (2), the tensioning assembly (4) comprises a gear (41), a connecting wheel (42) and a first motor (43), the gear (41) is fixedly connected with one end of the positioning roller (33), and teeth (421) are fixedly connected with the connecting wheel (42), the connecting wheel (42) is meshed with the gear (41) through the teeth (421), and the first motor (43) is used for driving the connecting wheel (42) to rotate.

2. A sewing machine according to claim 1, wherein: fixed subassembly (3) are still including connecting roller (32), it is equipped with two, one to connect roller (32) one-to-one with a connecting plate (31) rotate the connection, registration roller (33) with connect roller (32) can dismantle the connection.

3. A sewing machine according to claim 2, wherein: the fixing component (3) further comprises a fastener (34), clamping blocks (331) are welded at two ends of the positioning roller (33), clamping grooves (321) are formed in one side, close to each other, of the connecting roller (32), the positioning roller (33) is clamped in the clamping grooves (321) through the clamping blocks (331), and the fastener (34) is used for fixedly connecting the connecting roller (32) and the positioning roller (33).

4. A sewing machine according to claim 1, wherein: feeding subassembly (5) are including backup pad (51), lower compression roller (52), go up compression roller (55) and second motor (53), backup pad (51) are equipped with two, backup pad (51) with workstation (1) fixed connection, compression roller (52) one end one-to-one rotates with a backup pad (51) and connects down, go up compression roller (55) one end one-to-one and one backup pad (51) rotate and connect.

5. A sewing machine according to claim 4, characterized in that: the surfaces of the upper pressing roller (55) and the lower pressing roller (52) are provided with anti-skid grains (521).

6. A sewing machine according to claim 4, characterized in that: the automatic pressing device is characterized in that an adjusting block (54) is arranged on the supporting plate (51), the adjusting block (54) is in sliding connection with the supporting plate (51), and the upper pressing roller (55) is in rotating connection with the adjusting block (54).

7. A sewing machine according to claim 6, wherein: fixedly connected with bearing (543) on regulating block (54), go up compression roller (55) with bearing (543) inner ring fixed connection.

8. A sewing machine according to claim 7, wherein: the supporting plate (51) is provided with scales (522) along the vertical direction.