CN213142396U - Expansion mechanism of upper cuff sewing machine - Google Patents

Abstract

The utility model discloses an expanding mechanism of an upper cuff sewing machine, which comprises an expanding mounting plate fixed below a sewing area, wherein the expanding mounting plate is provided with an expanding roller assembly capable of moving up and down; the expansion mounting plate is fixed with an expansion motor for driving the expansion roller component to descend to expand the cuffs; the expansion motor drives the expansion roller component to move up and down through the synchronous belt transmission component, and after the sleeve and the cuff are placed in the sewing area, the splicing opening of the sleeve and the cuff can be automatically opened, so that sewing is facilitated.

Description

Expansion mechanism of upper cuff sewing machine

Technical Field

The utility model relates to an industrial sewing machine, specifically speaking are special industrial sewing machine that is used for cuff and sleeve concatenation sewing.

Background

The rib-stitch cuff is sewed on the sleeve of the sports garment, and the splicing and sewing of the sleeve and the rib-stitch cuff are mainly finished by manually aligning by workers and feeding the aligned sleeve and the rib-stitch cuff to a sewing machine for sewing. Because the sleeve and the rib cuff are both cylindrical, sewing movement on a sewing machine is inconvenient, the proficiency of workers is not high or the quality problem is easily caused by operation fatigue.

Disclosure of Invention

The utility model aims to solve the technical problem that to above-mentioned prior art current situation, and provide an expansion mechanism of last sleeve opening sewing machine, put sewing area back at sleeve and cuff, can open the concatenation mouth of sleeve and cuff automatically, the sewing of being convenient for.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: an expansion mechanism of an upper-cuff sewing machine comprises an expansion mounting plate fixed below a sewing area, wherein the expansion mounting plate is provided with an expansion roller assembly capable of moving up and down; the expansion mounting plate is fixed with an expansion motor for driving the expansion roller component to descend to expand the cuffs; the expansion motor drives the expansion roller component to move up and down through the synchronous belt transmission component.

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

Foretell expansion roller assembly is equipped with the expansion rod that can penetrate the cuff including expanding the support, is equipped with the expansion gyro wheel that can rotate on the expansion rod.

The expansion mounting plate is provided with an expansion guide rail which is vertically arranged, and the expansion bracket is arranged on the expansion guide rail in a sliding manner.

The expansion mounting plate is provided with a third synchronizing wheel and a fourth synchronizing wheel, and the third synchronizing wheel is connected with a power output shaft of the expansion motor; the third synchronizing wheel and the fourth synchronizing wheel are connected through an expansion synchronous belt, and the expansion support is connected with the expansion synchronous belt through a connecting block.

Compared with the prior art, the utility model discloses an go up sleeve opening sewing machine's expanding mechanism, through the oscilaltion motion of expansion motor automatic control expansion roller components, put sewing area back at sleeve and cuff, can open the concatenation mouth of sleeve and cuff automatically, the sewing of being convenient for.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2 is a schematic perspective view of the tug mechanism of fig. 1.

Fig. 3 is an assembled exploded view of fig. 2.

Fig. 4 is a perspective view of the expansion mechanism of fig. 1.

Fig. 5 is a schematic perspective view of the setting mechanism in fig. 1.

Fig. 6 is an assembled exploded view of fig. 5.

Detailed Description

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

Fig. 1 to 6 are schematic structural views of the present invention.

Wherein the reference numerals are: the device comprises a tug bracket 1, a tug mounting arm 11, a tug motor 12, a swing cylinder 13, a first cylinder mounting bracket 14, a tug 2, a tug rotating shaft 21, a first synchronizing wheel 22, a second synchronizing wheel 23, a tug synchronous belt 24, an axial straight tooth groove 25, an expansion mounting plate 3, an expansion motor 31, an expansion guide rail 32, a third synchronizing wheel 33, a fourth synchronizing wheel 34, an expansion synchronous belt 35, a connecting block 36, an expansion bracket 4, an expansion roller 41, an expansion rod 42, a base 5, a rotary seat 51, a material stirring mounting plate 52, a poking wheel rotating cylinder 53, a material pushing guide rail 54, a sliding seat 55, a guide shaft sleeve 56, a guide shaft 57, a poking wheel motor 6, a poking wheel 61, an inclined tooth groove 62, a sleeve 63, a material pushing rod 7, a primary cylinder 71, a secondary cylinder 72, a telescopic cylinder 8 and an air blow pipe 81.

The utility model discloses an upper cuff sewing machine, including tow boat mechanism, expanding mechanism, group material mechanism and sewing machine head, the preferred hemming machine head of sewing machine head can be fixed to sleeve and cuff concatenation sewing. The tug mechanism and the material shifting mechanism are distributed on two sides of the sewing area, the tug mechanism realizes rotation of the sleeve and the cuff, and the material shifting mechanism realizes axial feeding, pushing and discharging of the sleeve and the cuff.

As shown in fig. 2 and 3, the tug mechanism comprises a tug bracket 1 fixed on one side of the sewing area, the tug bracket 1 is provided with a tug mounting arm 11 capable of rotating, the lower end of the tug mounting arm 11 is provided with a tug 2 capable of rotating, and the upper end of the tug mounting arm 11 is provided with a tug motor 12 for driving the tug 2 to rotate.

The tug mounting arm 11 is connected with a swing cylinder 13 for driving the tug mounting arm 11 to rotate. The rotation of the tug mounting arm 11 is controlled, so that the tug 2 can be contacted with or separated from the sleeve and the cuff

The lower end of the tug mounting arm 11 is provided with a tug rotating shaft 21 through a bearing, one end of the tug rotating shaft 21 is fixed with a first synchronizing wheel 22, and the other end is fixed with a tug 2; a second synchronizing wheel 23 is fixed on a power output shaft of the tug motor 12, and the first synchronizing wheel 22 is connected with the second synchronizing wheel 23 through a tug synchronous belt 24.

The cylinder body of the swing cylinder 13 is rotatably mounted on the first cylinder mounting bracket 14, and the piston rod of the swing cylinder 13 is rotatably connected with the tug mounting arm 11; the first cylinder mounting bracket 14 is fixedly connected with the frame of the upper cuff sewing machine.

The tug bracket 1 is fixed with a first cylinder mounting bracket 14 extending towards the outer side, the cylinder body of the swing cylinder 13 is rotatably mounted on the first cylinder mounting bracket 14, and the piston rod of the swing cylinder 13 is rotatably connected with the tug mounting arm 11.

The wheel surface of the tug 2 is provided with an axial straight tooth groove 25. The tug 2 can be controlled to contact with or separate from the sleeve and the cuff by swinging the air cylinder 13. When the tug 2 is contacted with the sleeve and the cuff, the tug motor 12 drives the tug 2 to rotate, so that the sleeve and the cuff can be driven to rotate, and the splicing part of the sleeve and the cuff is fixed through sewing by a machine needle.

The expanding mechanism shown in fig. 4 comprises an expanding mounting plate 3 fixed below a sewing area, wherein the expanding mounting plate 3 is provided with an expanding roller assembly capable of moving up and down; the expanding mounting plate 3 is fixed with an expanding motor 31 for driving the expanding roller component to descend to expand the cuffs; the expanding motor 31 drives the expanding roller component to move up and down through the synchronous belt transmission component.

The expansion roller component comprises an expansion bracket 4, the expansion bracket 4 is provided with an expansion rod 42 which can penetrate through cuffs, and the expansion rod 42 is provided with an expansion roller 41 which can rotate.

The expansion mounting plate 3 is provided with an expansion guide rail 32 which is vertically arranged, and the expansion bracket 4 is slidably arranged on the expansion guide rail 32.

The expansion mounting plate 3 is provided with a third synchronizing wheel 33 and a fourth synchronizing wheel 34, and the third synchronizing wheel 33 is connected with a power output shaft of the expansion motor 31; the third synchronous wheel 33 and the fourth synchronous wheel 34 are connected by an expansion synchronous belt 35, and the expansion bracket 4 is connected with the expansion synchronous belt 35 by a connecting block 36.

When the cuff and the sleeve barrel are sleeved in the sewing area, the expansion roller components are positioned inside the cuff and the sleeve barrel. When the sewing operation starts, the expansion roller component descends to open the cuffs and the sleeves and tighten the splicing parts of the cuffs and the sleeves, so that the cuffs and the sleeves can be fed in a rotating mode conveniently.

As shown in fig. 5 and 6, the material-shifting mechanism includes a base 5, the base 5 is provided with a rotatable material-shifting mounting plate 52 through a rotary seat 51, the material-shifting mounting plate 52 is provided with a shifting wheel motor 6, a power output shaft of the shifting wheel motor 6 extends to a sewing area, and the end part of the power output shaft is provided with a shifting wheel 61 contacting with a sleeve and a cuff splice; the face of the thumb wheel 61 has a helical tooth groove 62 that applies an external pulling force to the splice. When sewing operation is performed, the dial wheel 61 rotates, and the sleeve and the cuff can move in the axial direction by utilizing the contact force between the oblique tooth grooves 62 and the surfaces of the sleeve and the cuff, so that the splicing part is aligned with the sewing position of the needle.

The shifting wheel motor 6 is rotatably arranged on the material shifting mounting plate 52; a dial wheel rotating cylinder 53 for driving the dial wheel motor 6 to rotate so as to enable the dial wheel 61 to contact with the splicing part or be far away from the splicing part is arranged between the dial wheel motor 6 and the material poking mounting plate 52.

The material stirring mounting plate 52 is provided with a material pushing rod 7 for pushing the splicing part to move, and the material pushing rod 7 is driven linearly by a material pushing cylinder.

A pushing guide rail 54 is fixed on the material poking mounting plate 52, and the pushing guide rail 54 is provided with a sliding seat 55; the material pushing cylinder comprises a primary cylinder 71 and a secondary cylinder 72, wherein cylinder bodies of the primary cylinder and the secondary cylinder are connected in series; a piston rod of the primary cylinder 71 is fixedly connected with the material poking mounting plate 52; the sliding seat 55 is fixedly connected with the cylinder body of the secondary cylinder 72, and the piston rod of the secondary cylinder 72 is fixedly connected with the material pushing rod 7.

The primary cylinder 71 is used for driving the material pushing rod 7 to perform primary linear movement, and pushing the splicing part to move outwards before sewing is finished. In the process of sewing the edge of the cuff for a circle, the shifting wheel 61 is attached to the cuff, so that the splicing part at the edge of the cuff is axially pulled outwards and is kept on the sewing path. When the sewing is finished for one circle, the sewing needs to be continued for reinforcing, the shifting wheel 61 is far away, the material pushing rod 7 performs primary linear movement, and the sewn edge splicing part is retreated to avoid being cut by the overedger. The secondary cylinder 72 is used for driving the material pushing rod 7 to perform secondary linear movement, and pushing the cuffs and the sleeves to discharge materials after all sewing is finished.

The sliding seat 55 is provided with a guide shaft sleeve 56, the material pushing rod 7 is connected with a guide shaft 57, and the guide shaft 57 is arranged in the guide shaft sleeve 56 in a sliding manner.

A sleeve 63 is fixed on the thumb wheel motor 6, and a power output shaft of the thumb wheel motor 6 penetrates through the sleeve 63 to be connected with the thumb wheel 61; the dial wheel rotating cylinder 53 is connected to the sleeve 63.

The material shifting mounting plate 52 is fixed with a telescopic cylinder 8, a piston rod of the telescopic cylinder 8 is connected with an air blowing pipe 81, and the air blowing pipe 81 is connected with an air source.

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 (4)

1. An expanding mechanism of an upper-cuff sewing machine is characterized in that: the sewing machine comprises an expansion mounting plate (3) fixed below a sewing area, wherein the expansion mounting plate (3) is provided with an expansion roller assembly capable of moving up and down; the expanding mounting plate (3) is fixed with an expanding motor (31) for driving the expanding roller component to descend to expand the cuffs; the expansion motor (31) drives the expansion roller component to move up and down through a synchronous belt transmission component.

2. The stent of claim 1, wherein: the expansion roller component comprises an expansion support (4), an expansion rod (42) capable of penetrating into cuffs is arranged on the expansion support (4), and a rotatable expansion roller (41) is arranged on the expansion rod (42).

3. The stent of claim 2, wherein: the expansion mounting plate (3) is provided with a vertically arranged expansion guide rail (32), and the expansion bracket (4) is arranged on the expansion guide rail (32) in a sliding manner.

4. The stent of claim 3, wherein: the expansion mounting plate (3) is provided with a third synchronizing wheel (33) and a fourth synchronizing wheel (34), and the third synchronizing wheel (33) is connected with a power output shaft of the expansion motor (31); third synchronizing wheel (33) and fourth synchronizing wheel (34) connect through expansion hold-in range (35), expansion support (4) pass through connecting block (36) with expansion hold-in range (35) be connected.

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