CN218508003U

CN218508003U - Transmission wheel for multi-needle sewing machine

Info

Publication number: CN218508003U
Application number: CN202222720184.1U
Authority: CN
Inventors: 张涛
Original assignee: Taizhou Lingrui Sewing Machine Co ltd
Current assignee: Zhejiang Lingrui Sewing Machine Co.,Ltd.
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-02-21
Anticipated expiration: 2032-10-14

Abstract

The application relates to a transmission wheel for a multi-needle sewing machine, which comprises a central shaft and a transmission roller, wherein the transmission roller is coaxially provided with a through hole, and the circumferential outer wall of the transmission roller is provided with telescopic grooves side by side; telescopic plates are arranged in the plurality of telescopic grooves in a one-to-one corresponding sliding manner; two control circular plates are coaxially arranged in the through hole, a control block is fixed at the end part of the telescopic plate, a control groove is formed in each control circular plate, and the length directions of the control grooves incline along the same clockwise direction; the control circular plate is coaxially and detachably fixed with the central shaft, and the control circular plate further comprises a fixing assembly for coaxially fixing the central shaft and the conveying roller. By arranging the control circular plate, the telescopic plate and the control block, the position between the two conveying wheels does not need to be changed, and the extending length of the telescopic plate is adjusted to change the gap between the two conveying wheels so as to adapt to the conveying of cloth materials with different thicknesses, so that the adjustment is convenient; through setting up fixed plate, movable plate and fixation nut, unscrew fixation nut and can rotate the center pin, make the rotation of control plectane convenient to make the regulation of expansion plate convenient.

Description

Transmission wheel for multi-needle sewing machine

Technical Field

The application relates to the field of sewing machine accessories, in particular to a transmission wheel for a multi-needle sewing machine.

Background

A multi-needle sewing machine is a sewing machine having a plurality of needles which are arranged side by side and can be operated simultaneously, and is generally used for sewing a cloth having a large fixed area, and can improve sewing efficiency well.

The invention patent application with application publication number CN110468512A discloses a sewing machine, which comprises a machine table, a machine head positioned above the machine table, a sewing needle assembly arranged above the machine head in a lifting mode, a roller positioned below the machine table, a first conveying wheel positioned on one side of the machine table, a second conveying wheel positioned beside the first conveying wheel, a first driving mechanism used for driving the first conveying wheel or the second conveying wheel to rotate, and a pressing wheel mechanism positioned beside the sewing needle assembly and used for tidying cylindrical clothes, wherein the machine table, the roller and the first conveying wheel are combined to form a sleeving structure used for sleeving the cylindrical clothes, and the driving assembly drives the first conveying wheel or the second conveying wheel to rotate so as to drive the cylindrical clothes to rotate around the sleeving structure.

Because the cloth to be sewn is wider, the multi-needle sewing machine generally needs to adopt the feeding structures of the first conveying wheel and the second conveying wheel in the patent technology in order to better ensure the moving smoothness of the cloth during sewing; however, in the actual use process, it is found that when the thicknesses of the sewn fabrics are different, the distance between the first transfer wheel and the second transfer wheel needs to be frequently adjusted to adapt to the thickness of the fabric, and the position height of the second transfer wheel is usually adjusted.

SUMMERY OF THE UTILITY MODEL

In order to improve the inconvenient problem of interval adjustment, this application provides a transfer gear for multi-needle sewing machine.

The application provides a pair of transfer gear for multi-needle sewing machine adopts following technical scheme:

a conveying wheel for a multi-needle sewing machine comprises a central shaft and a conveying roller coaxially arranged on the central shaft, wherein the conveying roller is coaxially provided with an opening, the peripheral outer wall of the conveying roller is provided with a plurality of telescopic grooves communicated with the opening side by side, and the length direction of the telescopic grooves is along the length direction of the central shaft; telescopic plates are arranged in the telescopic grooves in a one-to-one corresponding sliding mode, and the end parts, protruding out of the telescopic grooves, of the telescopic plates are used for abutting against cloth;

two control circular plates are coaxially arranged in the through hole, the telescopic plate is positioned on one side opposite to the two control circular plates, a control block is fixed at the end part of the telescopic plate facing the control circular plates, a control groove for the control block to slide is formed in each control circular plate, and the length directions of the control grooves incline along the same clockwise direction; the control circular plate and the central shaft are coaxially detachably fixed, the central shaft is inserted into the through hole, and the device further comprises a fixing assembly for coaxially fixing the central shaft and the conveying roller.

Through adopting above-mentioned technical scheme, the center pin can be dismantled fixedly with the control plectane, when the center pin rotated, the control plectane was at the opening internal rotation, because the control block slides in the control groove, the length direction of control groove is for the slope of same hour hand direction of orientation, when making the control plectane pivoted, the direction that the control block kept away from or was close to the center pin slided to drive the expansion plate and slide in the expansion groove, the length that makes the tip of expansion plate protrusion transfer roller can be adjusted. When thicker cloth needs to be conveyed, the end part of the telescopic plate can be retracted into the telescopic groove, and when the cloth is thinner, the end part of the telescopic plate can be extended out of the telescopic groove;

when the control circular plate needs to be rotated for adjustment, the fixing assembly is only needed to be loosened, the central shaft is separated from the conveying roller, the central shaft can be rotated, and after the adjustment is completed, the fixing assembly fixes the central shaft and the conveying roller again. The application of the transfer gear is not required to move the whole transfer gear and the cylinder when the gap between the two transfer gears is required to be adjusted, so that the gap between the two transfer gears is convenient to adjust, and the sewing machine is convenient to use.

Optionally, the fixed subassembly includes fixed plate, movable plate and fixation nut, fixed plate and the coaxial fixed of center pin, set up the perforation that supplies the center pin to pass on the movable plate, the transfer roller is located the relative one side of fixed plate and movable plate, fixation nut threaded connection is on the center pin, fixation nut is located the movable plate and keeps away from one side of fixed plate, fixation nut screws up and fixes center pin and transfer roller.

Through adopting above-mentioned technical scheme, fixed plate and movable plate are located the both sides of transfer roller to it is fixed with center pin threaded connection through fixation nut, when making the control plectane that needs to rotate, unscrew fixation nut slightly, the center pin just can rotate, makes the control plectane rotate, makes the flexible regulation of expansion plate convenient, and then makes the clearance conveying between two transfer pulleys convenient.

Optionally, holding grooves for holding the fixed plate and the moving plate are formed in two sides of the conveying roller.

Through adopting above-mentioned technical scheme, make the transfer gear both sides comparatively level and smooth, and the holding tank fixes a position fixed plate and movable plate, conveniently with center pin and transfer roller coaxial arrangement.

Optionally, the end of the expansion plate protruding the expansion slot is provided with a fillet.

Through adopting above-mentioned technical scheme, the setting of fillet makes the expansion plate be difficult for the fish tail cloth.

Optionally, the notch of the control slot is provided with a fillet or a chamfer.

Through adopting above-mentioned technical scheme, it has fillet or chamfer to open in the control groove, makes things convenient for the control block to get into the control groove in, makes things convenient for the installation of control panel.

Optionally, a fixing hole is formed in the circumferential side wall of the control circular plate in a penetrating manner, a fixing bolt penetrates through the fixing hole, and the fixing bolt penetrates through the fixing hole and is fixedly connected with the central shaft through threads.

Through adopting above-mentioned technical scheme, fixing bolt can dismantle fixedly with control plectane and central axle, makes transfer gear simple to operate, and both are fixed firmly.

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

1. by arranging the control round plate, the telescopic plate and the control block, the position between the two conveying wheels does not need to be changed, and the extending length of the telescopic plate can be adjusted to change the gap between the two conveying wheels so as to adapt to the conveying of cloth materials with different thicknesses, so that the adjustment is convenient;

2. by arranging the fixed plate, the movable plate and the fixed nut, the central shaft can be rotated by unscrewing the fixed nut, so that the control circular plate is convenient to rotate, and the telescopic plate is convenient to adjust;

3. through setting up the holding tank location, conveniently with center pin and transfer roller coaxial arrangement.

Drawings

FIG. 1 is a general schematic view of a transfer wheel according to an embodiment of the present application.

Fig. 2 is an exploded view of the transfer wheel according to the embodiment of the present application, and mainly shows the structure of a control block.

Fig. 3 is a second exploded view of the transfer wheel of the embodiment of the present application, showing the structure of the main protrusion control groove.

Description of the reference numerals: 1. a central shaft; 2. a conveying roller; 21. a port; 22. a telescopic groove; 3. a fixing assembly; 31. a fixing plate; 32. moving the plate; 33. fixing a nut; 4. a retractable plate; 5. a control circular plate; 51. a fixing hole; 52. fixing the bolt; 53. a control block; 54. a control slot; 6. and (6) accommodating the tank.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a transfer gear for a multi-needle sewing machine. Referring to fig. 1, a transfer wheel for a multi-needle sewing machine includes a central shaft 1, a transfer roller 2, and a fixing assembly 3 coaxially fixing the central shaft 1 and the transfer roller 2.

Referring to fig. 2, transfer roller 2 has seted up coaxial through opening 21, and a plurality of flexible grooves 22 with the through opening 21 intercommunication are seted up side by side to the outer wall of 2 circumference of transfer roller, and the direction of depth of a plurality of flexible grooves 22 is for keeping away from or being close to the direction of 2 axes of transfer roller. The longitudinal direction of the expansion groove 22 is parallel to the longitudinal direction of the center shaft 1. The central shaft 1 is inserted in the through opening 21.

Referring to fig. 2, the expansion plates 4 are arranged in the expansion grooves 22 in a one-to-one sliding manner, the end portions, protruding out of the expansion grooves 22, of the expansion plates 4 are provided with round corners, the end portions, protruding out of the expansion grooves 22, of the expansion plates 4 are used for abutting cloth, and the end portions, protruding out of the expansion grooves 22, of the expansion plates 4 enable the cloth to be not prone to being scratched.

Referring to fig. 2, two control disks 5 are mounted in the through opening 21, and the two control disks 5 are fixed coaxially with the central shaft 1. The control circular plate 5 is provided with a fixing hole 51 on the circumferential outer wall, and the fixing hole 51 is a countersunk hole. A fixing bolt 52 is inserted into the fixing hole 51, and the end of the fixing bolt 52 is screwed to the side wall of the central shaft 1 to fix the control disc 5 to the central shaft 1.

Referring to fig. 2, the expansion plate 4 is positioned on the side opposite to the two control disks 5, control blocks 53 are fixed to both ends of the expansion plate 4 facing the control disks 5, the control blocks 53 are cylindrical, and the end faces of the control blocks 53 are fixed to the ends of the control disks 5.

Referring to fig. 2 and 3, the opposite sides of the two control circular plates 5 are provided with control grooves 54 for the control block 53 to slide, the length directions of the control grooves 54 are inclined along the same clockwise direction, the control grooves 54 on the two control circular plates 5 are opposite to each other, and notches of the control grooves 54 are provided with round corners or chamfers, so that the control block 53 can conveniently enter the control grooves 54.

Referring to fig. 3, the fixed assembly 3 includes a fixed plate 31, a movable plate 32 and a fixed nut 33, the fixed plate 31 is coaxially fixed with the central shaft 1, a through hole for the central shaft 1 to pass through is formed in the movable plate 32, the conveying roller 2 is located on one side of the fixed plate 31 opposite to the movable plate 32, the fixed nut 33 is coaxially screwed to the end of the central shaft 1, the fixed nut 33 is located on one side of the movable plate 32 away from the fixed plate 31, and the fixed nut 33 is tightened to clamp the conveying roller 2 by the fixed plate 31 and the movable plate 32, so that the central shaft 1 and the conveying roller 2 are fixed.

Referring to fig. 3, holding tank 6 that is used for holding fixed plate 31 and movable plate 32 is seted up to transfer roller 2 both sides, and the outer wall laminating of 6 inner walls of holding tank and fixed plate 31 and movable plate 32, and fixed plate 31 and movable plate 32 are the plectane, and holding tank 6 and the coaxial setting of transfer roller 2 make fixed plate 31 and movable plate 32 installation get into when holding tank 6, and holding tank 6 has the location effect, makes the convenient and coaxial with transfer roller 2 of center pin 1.

The implementation principle of the transmission wheel for the multi-needle sewing machine in the embodiment of the application is as follows: when in use, two transmission wheels are arranged on the sewing machine, one transmission wheel is driven by a motor to rotate, and the other transmission wheel is driven by an air cylinder to lift; when sewing cloth with different thicknesses, a user unscrews the fixing nut 33, then rotates the central shaft 1 to enable the control circular plate 5 to rotate, so that the expansion plate 4 is driven to expand and contract, the length of the expansion plate 4 protruding out of the expansion groove 22 is adjusted, the distance between the two conveying wheels is adjusted, the outer walls of the conveying wheels are enabled to be well attached to the cloth, and the cloth cannot be damaged due to over-tightening; after the adjustment is completed, the fixing nut 33 is fixed.

In conclusion, when the delivery wheel is installed on the sewing machine for use, when the thickness of the sewn cloth needs to be adjusted, the delivery wheel does not need to be moved, only the expansion plate 4 protrudes out of the expansion groove 22 by the length, the adjustment mode is simple, and the sewing machine is convenient to use.

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. The utility model provides a transfer gear for multi-needle sewing machine, includes center pin (1) and coaxial transfer roller (2) that set up on center pin (1), its characterized in that: the conveying roller (2) is coaxially provided with a through hole (21), the circumferential outer wall of the conveying roller (2) is provided with a plurality of telescopic grooves (22) communicated with the through hole (21) side by side, and the length direction of each telescopic groove (22) is along the length direction of the central shaft (1); telescopic plates (4) are arranged in the telescopic grooves (22) in a one-to-one corresponding sliding manner, and the telescopic plates (4) protrude out of the end parts of the telescopic grooves (22) and are used for abutting against cloth;

two control circular plates (5) are coaxially arranged in the through hole (21), the telescopic plate (4) is positioned on one side opposite to the two control circular plates (5), a control block (53) is fixed at the end part, facing the control circular plates (5), of the telescopic plate (4), a control groove (54) for the control block (53) to slide is formed in the control circular plates (5), and the length directions of the control grooves (54) are inclined along the same hour-hand direction; the control circular plate (5) and the central shaft (1) are coaxially and detachably fixed, the central shaft (1) is inserted into the through hole (21), and the device further comprises a fixing assembly (3) for coaxially fixing the central shaft (1) and the conveying roller (2).

2. The transfer wheel for a multiple needle sewing machine according to claim 1, characterized in that: fixed subassembly (3) are including fixed plate (31), movable plate (32) and fixation nut (33), fixed plate (31) and center pin (1) coaxial fixation, set up the perforation that supplies center pin (1) to pass on movable plate (32), transfer roller (2) are located fixed plate (31) and one side that movable plate (32) are relative, fixation nut (33) threaded connection is on center pin (1), fixation nut (33) are located movable plate (32) and keep away from one side of fixed plate (31), fixation nut (33) are screwed up and are fixed with center pin (1) and transfer roller (2).

3. The transfer wheel for a multiple needle sewing machine according to claim 2, characterized in that: and accommodating grooves (6) for accommodating the fixed plate (31) and the moving plate (32) are formed in two sides of the conveying roller (2).

4. The transfer wheel for a multiple needle sewing machine according to claim 1, characterized in that: the end part of the expansion plate (4) protruding the expansion groove (22) is provided with a round angle.

5. The transfer wheel for a multiple needle sewing machine according to claim 1, characterized in that: the notch of the control groove (54) is provided with a round angle or a chamfer angle.

6. The transfer wheel for a multiple needle sewing machine according to claim 1, characterized in that: the control plectane (5) circumference lateral wall runs through and has seted up fixed orifices (51), wear to be equipped with fixing bolt (52) in fixed orifices (51), fixing bolt (52) pass fixed orifices (51), and it is fixed with center pin (1) threaded connection.