CN107988719B

CN107988719B - Upper cloth feeding device for sewing decorative strip

Info

Publication number: CN107988719B
Application number: CN201610947866.2A
Authority: CN
Inventors: 林培嘉
Original assignee: Kaulin Manufacturing Co Ltd
Current assignee: Kaulin Manufacturing Co Ltd
Priority date: 2016-10-26
Filing date: 2016-10-26
Publication date: 2020-09-11
Anticipated expiration: 2036-10-26
Also published as: CN107988719A

Abstract

The invention discloses an upper cloth feeding device for sewing decorative strips, which comprises a presser foot structure and a cloth feeding mechanism, wherein the presser foot structure comprises a presser foot seat and a presser foot frame connected with the presser foot seat, and the presser foot seat is provided with a middle section and side strips respectively connected with two ends of the middle section; the cloth feeding mechanism comprises a first roller, a second roller and a conveyor belt, the first roller is bridged between the side strips, the second roller is also bridged between the side strips and is formed on the front side of the first roller, the first roller and the second roller are parallel to each other, and the conveyor belt is encircled and connected with the first roller and the second roller. Therefore, the cloth and the decorative strips can still maintain the flat condition after sewing.

Description

Upper cloth feeding device for sewing decorative strip

Technical Field

The present invention relates to a sewing machine technology, particularly to an upper cloth feeding device for sewing a decorative strip.

Background

Modern people can take a part of time to do exercises such as jogging, walking or sports in a fitness center for the health of the body and the maintenance of beautiful body conditions, and the modern people must have comfortable wearing and matching in the process of sports, so that the body, the mind and the spirit can reach the optimal state.

Therefore, in order to overcome the above problems, the industry often needs to perform secondary processing such as ironing on the clothes with unevenness to overcome the above problems, which not only consumes the equipment cost, but also cannot effectively save the labor cost.

Disclosure of Invention

An object of the present invention is to provide an upper feed device for sewing molding, which can maintain the flatness of a cloth and each molding after sewing.

In order to achieve the above object, the present invention provides an upper cloth feeding device for a sewing decoration strip, comprising a presser foot structure and a cloth feeding mechanism, wherein the presser foot structure comprises a presser foot seat and a presser foot frame connected with the presser foot seat, the presser foot seat has a middle section and a side strip respectively connected with two ends of the middle section; the cloth feeding mechanism comprises a first roller, a second roller and at least one conveyor belt, the first roller is bridged between the side strips, the second roller is also bridged between the side strips and is formed on the front side of the first roller, the first roller and the second roller are parallel to each other, and the conveyor belt is encircled and connected with the first roller and the second roller.

In order to achieve the above object, the present invention provides an upper cloth feeding device for a sewing decoration strip, comprising a transmission mechanism, a presser foot structure and a cloth feeding mechanism, wherein the presser foot structure comprises a presser foot seat and a presser foot frame connected with the presser foot seat; the cloth feeding mechanism comprises a first roller, a second roller and at least one conveyor belt, the first roller is installed on the presser foot seat and driven by the transmission mechanism to rotate, the second roller is installed on the presser foot seat and formed on one side of the first roller, the first roller and the second roller are parallel to each other, and the conveyor belt surrounds and is connected with the first roller and the second roller.

The invention also has the following effects that the structure is compact, the assembly and disassembly are easy, and the operable space of the sewing machine can be greatly reduced.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

FIG. 1 is a schematic view of an assembly of the present invention applied to a sewing machine;

FIG. 2 is an exploded perspective view of the upper feed apparatus of the present invention;

FIG. 3 is a schematic combination view of the upper feed apparatus of the present invention;

fig. 4 is a cross-sectional view 4-4 of fig. 3.

Fig. 5 is a view showing a state of use of the present invention applied to a sewing machine.

Wherein the reference numerals

1 … cloth feeding device

10 … presser foot structure

11 … presser foot base

111 … middle section

112 … pinhole group

113 … guide groove

114 … screw hole

115 … side strip

116 … side strip

117 … rear axle hole

118 … front axle hole

119 … pinhole

120 … through the hole

13 … presser foot frame

131 … shelf body

132 … upright arm

133 … through hole

134 … stop lever

135 … rod body

15 … guide plate

151 … bottom plate

152 … channel

153 … front plate

154 … backboard

154 … perforation

17 … cross-connecting rod

19 … Cross Bar

20 … cloth feeding mechanism

21 … first roller

211 … first gear

212 … first shaft

23 … second roller

231 … second gear

232 … second axle rod

25 … conveyor belt

27 … tension adjuster

271 … roller

272 … connecting rod

273 … bolt

30 … transmission mechanism

31 … drive shaft

32 … universal joint

5 … Sewing machine

51 … body

52 … speed reducer

6 … ornament strip feeder

61 … decorative strip

7 … cloth

Detailed Description

The following detailed description and technical contents of the present invention are described with reference to the accompanying drawings, however, the accompanying drawings are provided for reference and illustration purposes only and are not intended to limit the present invention.

Referring to fig. 1 to 4, the present invention provides an upper cloth feeding device for sewing a trim strip, the upper cloth feeding device 1 mainly includes a presser foot structure 10 and a cloth feeding mechanism 20.

The presser foot structure 10 of the present embodiment includes a presser foot seat 11, a presser foot frame 13, a guide plate 15, a through connection rod 17 and a cross rod 19, the presser foot seat 11 can be forged by metal material, and is substantially in an H shape, and mainly includes a middle section 111, and a side bar 115 connected to the left end and a side bar 116 connected to the right end of the middle section 111, three needle hole groups 112 are arranged on the front side of the middle section 111, and each needle hole group 112 has two needle holes; a guide groove 113 is respectively arranged at the position below each needle hole group 112; a plurality of screw holes 114 are provided on the rear side of the intermediate section 111. The side bar 115 and the side bar 116 are respectively provided with a rear axle connection hole 117, a front axle connection hole 118, a pin hole 119 and a through hole 120 corresponding to each other.

The foot rest 13 may also be made of a metal material, and includes a frame body 131 and a rod body 135 connected to the middle position of the frame body 131, the frame body 131 is substantially in a flat-bottomed inverted U shape, and has two parallel upright arms 132, a through hole 133 is formed below each upright arm 132, and a stop rod 134 is connected above the through hole 133, the stop rod 134 is used for limiting the upward elevation angle of the foot rest 11.

The guiding plate 15 is formed by bending a plate, and has a bottom plate 151, a front plate 153 extending from the bottom plate 151 toward the front and bending upward, and a rear plate 154 extending from the bottom plate 151 toward the rear, three channels 152 are opened on the bottom plate 151, each channel 152 extends to the upper edge of the front plate 153, and two sides of the rear plate 154 are respectively provided with a through hole 155. The bottom plate 151 of the guiding plate 15 is overlapped and combined with the middle section 111, and each channel 152 is disposed corresponding to the needle hole set 112 and the guiding groove 113, and then the screw elements such as screws are inserted into the through holes 155 and screwed into the screw holes 114 for combination.

The through-link rod 17 is sequentially inserted through the through-holes 120 of the side bars 116, the through-holes 133, and the through-holes 120 of the side bars 115, thereby coupling the presser foot base 11 and the presser foot frame 13. The cross bar 19 is connected across the front edges of the side bars 115 and 116, and the top edges of the front plates 153 are overlapped.

The cloth feeding mechanism 20 includes a first roller 21, a second roller 23 and a conveyor belt 25, the first roller 21 is bridged between the side strips 115 and 116, and includes a first gear 211 and a first shaft 212 passing through the first gear 211, wherein the first gear 211 is clamped between the side strips 115 and 116, and the first shaft 212 sequentially passes through the rear shaft connecting hole 117 of the side strips 116, the central hole of the first gear 211 and the rear shaft connecting hole 117 of the side strips 115 to be combined.

The second roller 23 is also bridged between the side bar 115 and the side bar 116 and is formed at the front side of the first roller 21, the first roller 21 and the second roller 23 are parallel to each other, and it includes a second gear 231 and a second shaft 232 passing through the second gear 231, and the outer diameter of the second gear 231 is smaller than the outer diameter of the first gear 211, wherein the second gear 231 is clamped between the side bar 115 and the side bar 116, and the second shaft 232 is sequentially passed through the rear axle connection hole 117 of the side bar 116, the central hole of the second gear 231 and the rear axle connection hole 117 of the side bar 115 for combination.

The conveyor belts 25 of this embodiment are a timing belt (as shown in fig. 4), and the number of the conveyor belts is three, and the conveyor belts have both transmission and conveying functions, each conveyor belt 25 surrounds and is connected between the first gear 211 of the first roller 21 and the second gear 231 of the second roller 23, and each conveyor belt 25 is disposed at a position interval corresponding to the aforementioned guide groove 113 and the channel 152.

Further, the cloth feeding mechanism 20 of the present invention further includes a tension adjuster 27 connected to the presser foot 11 and pressed corresponding to each of the conveyor belts 25, the tension adjuster 27 includes a roller 271, a pair of links 272 and a pair of pins 273, each link 272 is connected to one side of the roller 271, and each pin 273 is connected to the pin hole 119 of each

side bar

115, 116 and the link 272.

Further, the upper feeding device 1 of the present invention further includes a transmission mechanism 30, the transmission mechanism 30 includes a transmission shaft 31 and a universal joint 32 respectively connected to two ends of the transmission shaft 31, wherein one end of the universal joint 32 is connected to the first shaft 212.

The upper cloth feeding device 1 of the present invention is installed on a sewing machine 5, the sewing machine 5 has a machine body 51 and a decelerator 52 installed at the rear side of the machine body 51, the upper cloth feeding device 1 is installed at the side of the sewing machine 5 far from the decelerator 52, and a lower feeder device (not shown) matched with the upper cloth feeding device 1 is installed in the sewing machine 5 at the position right below the upper cloth feeding device 1, and a decoration strip feeder 6 is installed at the outside of the sewing machine 5 corresponding to the upper part of the upper cloth feeding device 1, the decoration strip feeder 6 is transmitted by a related transmission mechanism (not shown), thereby outputting decoration strips 61, the decoration strips 61 of the present embodiment are three. Wherein one end of the other universal joint 32 of the upper cloth feeding device 1 of the present invention is connected to the decelerator 52 of the sewing machine 5 (as shown in fig. 1).

Referring to fig. 5, in the operation, a cloth 7 and the above-mentioned decorative strips 61 are stacked on each other and fed between the upper cloth feeding device 1 and the lower cloth feeding device, and the cloth 7 and the decorative strips 61 are clamped and transferred together with cloth feeding teeth (not shown) of the lower cloth feeding device and the conveyor belt 25 of the upper cloth feeding device 1 during sewing, and the cloth 7 and the decorative strips 61 are kept flat after sewing by the cooperation of sewing needles and sewing threads.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An upper cloth feeding device for a sewing trim strip, comprising:

the pressure foot structure comprises a pressure foot seat and a pressure foot frame connected with the pressure foot seat, wherein the pressure foot seat is provided with a middle section and a lateral bar respectively connected with the two ends of the middle section; and

the cloth feeding mechanism comprises a first roller, a second roller and a plurality of conveyor belts, wherein the first roller is bridged between the side strips, the second roller is also bridged between the side strips and is formed at the front side of the first roller, the first roller and the second roller are parallel to each other, and the conveyor belts surround and are connected with the first roller and the second roller;

the presser foot structure also comprises a guide plate which can be separately overlapped corresponding to the middle section, the middle section is provided with a plurality of pin hole groups, a guide groove is arranged below each pin hole group, the guide plate is provided with a bottom plate and a front plate bent and extended from the bottom plate, the bottom plate is provided with a plurality of channels, each channel extends to the upper edge of the front plate, and each channel is configured corresponding to each guide groove and is used for accommodating the conveyor belt.

2. A top feed apparatus for a sewing trim according to claim 1, wherein the feed mechanism further comprises a tension adjuster, the tension adjuster comprises a roller, a pair of links, and a pair of pins, each of the side strips has a corresponding pin hole, each of the links is connected to a side of the roller, each of the pins passes through each of the pin holes and each of the links, and the roller is pressed against each of the belts.

3. The upper feed device for sewing molding according to claim 1, wherein each of the side bars is provided with a rear axial connection hole and a front axial connection hole corresponding to each other, the first roller comprises a first gear and a first shaft, the second roller comprises a second gear and a second shaft, the first shaft passes through each of the rear axial connection holes and the first gear, the second shaft passes through each of the front axial connection holes and the second gear, and an outer diameter of the second gear is smaller than an outer diameter of the first gear.

4. The upper feed device for sewing trim strips as claimed in claim 1, wherein the presser foot structure further comprises a through-connecting rod, each side strip is provided with a through hole corresponding to each other, the presser foot frame comprises a frame body and a rod body connected with the frame body, the frame body is provided with two parallel upright arms, each upright arm is provided with a through hole corresponding to each other, and the through-connecting rod passes through each through hole and each through hole, so that the frame body and each side strip are combined.

5. An upper cloth feeding device for a sewing trim strip, comprising:

a transmission mechanism;

the presser foot structure comprises a presser foot seat and a presser foot frame connected with the presser foot seat; and

the cloth feeding mechanism comprises a first roller, a second roller and a plurality of conveyor belts, wherein the first roller is arranged on the presser foot seat and driven by the transmission mechanism to rotate, the second roller is arranged on the presser foot seat and formed on one side of the first roller, the first roller and the second roller are parallel to each other, and each conveyor belt surrounds and is connected with the first roller and the second roller;

the transmission mechanism comprises a transmission shaft and a universal joint connected with the transmission shaft, and the other end of the universal joint is connected with the first roller;

the presser foot structure also comprises a guide plate, the presser foot seat is provided with a middle section and a lateral bar respectively connected with the two ends of the middle section, the guide plate can be separately overlapped corresponding to the middle section, the middle section is provided with a plurality of pin hole groups, a guide groove is arranged below each pin hole group, the guide plate is provided with a bottom plate and a front plate bent and extended from the bottom plate, the bottom plate is provided with a plurality of channels, each channel extends to the upper edge of the front plate, and each channel is configured corresponding to each guide groove and is used for accommodating each conveyor belt.

6. An upper feed device for a sewing trim according to claim 5, wherein the feed mechanism further comprises a tension adjuster, the tension adjuster comprises a roller, a pair of connecting rods and a pair of pins, each of the side strips is provided with a corresponding pin hole, each of the connecting rods is connected to a side of the roller, each of the pins penetrates each of the pin holes and each of the connecting rods, and the roller is pressed against each of the belts.

7. The upper feed device for sewing molding according to claim 5, wherein each of the side bars is provided with a rear axial connection hole and a front axial connection hole corresponding to each other, the first roller comprises a first gear and a first shaft, the second roller comprises a second gear and a second shaft, the first shaft passes through each of the rear axial connection holes and the first gear, the second shaft passes through each of the front axial connection holes and the second gear, and an outer diameter of the second gear is smaller than an outer diameter of the first gear.