CN211921871U - Thread cutting device of sewing machine for sewing bags - Google Patents

Thread cutting device of sewing machine for sewing bags Download PDF

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Publication number
CN211921871U
CN211921871U CN201922026943.2U CN201922026943U CN211921871U CN 211921871 U CN211921871 U CN 211921871U CN 201922026943 U CN201922026943 U CN 201922026943U CN 211921871 U CN211921871 U CN 211921871U
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blade
sewing machine
upper blade
fixed
cutting device
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CN201922026943.2U
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徐天虹
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Individual
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Individual
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Abstract

The utility model belongs to the technical field of sewing machine parts, a tangent line device is related to, in particular to seam package sewing machine's tangent line device. The problem that it was solved is how to improve production efficiency and reduce accessory replacement cost. This product includes sewing machine head portion and sewing machine body portion, be fixed with the installation panel on the side that sewing machine head portion is close to the one end of being qualified for the next round of competitions, be fixed with the cylinder on the installation panel, installation panel lower extreme still is fixed with last blade subassembly, it includes blade holder and the gliding last blade from top to bottom of blade holder to go up the blade subassembly, cylinder lower extreme transmission shaft links firmly and can drive blade up-and-down reciprocating motion with last blade, the wide groove has on the sewing machine body portion that goes up the blade correspondence, can dismantle in the wide groove and be fixed with the lower blade just to with the blade edge of a knife of last blade. This product will be better than shearing mechanism on the market far away and change the cost greatly reduced of blade than the product on the market in shearing effect.

Description

Thread cutting device of sewing machine for sewing bags
Technical Field
The utility model belongs to the technical field of sewing machine parts, a tangent line device is related to, in particular to seam package sewing machine's tangent line device.
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. And derives the artistic forms of hand-push embroidery, computer embroidery, etc. The manner of opening the front fly of the knitted sweater is various, wherein open tubes and dark tubes are common; the process method for opening the front fly is divided into a open-thread opening front fly and a hidden-thread opening front fly, the open-thread opening front fly and the hidden-thread opening front fly are different, the achieved process effects are different, the existing sewing machine can only open the front fly through the hidden thread, the applicable process range is single, the thread cutting is usually carried out by an operator after the sewing is finished, and the efficiency is low. Therefore, the problem to be solved is that we are not reluctant to solve the problem.
SUMMERY OF THE UTILITY MODEL
To the prior art not enough, the utility model provides a thread cutting device of sewing machine for bags. The technical problem solved by the device is how to improve the production efficiency and reduce the replacement cost of accessories.
In order to realize the purpose, the utility model adopts the technical scheme that:
the thread cutting device of the sewing machine for sewing bags comprises a head part of the sewing machine and a body part of the sewing machine, and is characterized in that a mounting panel is fixed on the side face of the head part of the sewing machine, which is close to one end of a thread, an air cylinder is fixed on the mounting panel, an upper blade assembly is further fixed at the lower end of the mounting panel, the upper blade assembly comprises a blade rest and an upper blade capable of sliding up and down relative to the blade rest, a transmission shaft at the lower end of the air cylinder is fixedly connected with the upper blade and can drive the upper blade to reciprocate up and down, a wide groove is formed in the body part of the sewing machine, which corresponds to the upper blade, and a lower blade which is right opposite to the blade edge.
The side of the head of the sewing machine close to one end of the thread outlet is fixedly provided with a mounting panel, the mounting panel is fixedly provided with an air cylinder, the lower end of the mounting panel is further fixedly provided with an upper blade component, the upper blade component comprises a blade rest and an upper blade capable of sliding up and down relative to the blade rest, and a transmission shaft at the lower end of the air cylinder is fixedly connected with the upper blade and can drive the upper blade to reciprocate up and down. This product adopts the cylinder to drive blade up-and-down reciprocating motion, and its shearing strength will obviously be greater than in the market through the blade of scissors shape articulated cutting end of a thread. And the upper blade component comprises a blade rest and an upper blade, and the upper blade is divided into two parts, because the blade is a vulnerable accessory which is easy to damage along with the length of the using time, the upper blade is only needed to be replaced when the product is damaged, compared with the product on the market, the cost of replacing the whole set of blades is greatly reduced, and the installation and the disassembly are also simple and convenient. The working efficiency of the upper blade driven by the cylinder is greatly improved.
The sewing machine body part corresponding to the upper blade is provided with a wide groove, and a lower blade opposite to the blade point of the upper blade is detachably fixed in the wide groove. This product still is equipped with the bottom knife piece that corresponds with last blade on the basis of last blade, and the cutting edge of bottom knife piece is relative with last blade cutting edge, and the shearing effect that single blade set up on the market will be better than far away in shearing effect, can realize the shearing that also can the advantage of little end of a thread again, has improved work efficiency greatly.
In the thread cutting device of the sewing machine for the bag, the knife rest is provided with the sliding groove, the upper blade is provided with the matching block matched with the sliding groove, and two sides of the blade edge of the upper blade respectively extend outwards to form the blade edge lengthening section.
The knife rest is provided with a sliding groove, and the upper blade is provided with a matching block matched with the sliding groove. The upper blade and the knife rest are matched in a mode that the knife rest is greatly convenient to install, when the upper blade is damaged and needs to be replaced, the upper blade only needs to slide out of the sliding groove and then slide into a new upper blade, and therefore the replacement is greatly facilitated. The two sides corresponding to the blade points of the upper blade extend outwards respectively to form the blade lengthening sections, the lengthened blade enables the shearing effect to be greatly improved, the shearing thread end without dead angles can be achieved, and the working efficiency is further improved.
In the thread cutting device of the sewing machine for the bag, the lower blade is provided with a plurality of through holes, the side wall of the wide groove is provided with mounting holes corresponding to the through holes, and the lower blade penetrates through the through holes and the mounting holes through pins and is fixed on the side wall of the wide groove.
The lower blade passes through the through-hole through the pin and the mounting hole is fixed on the wide groove lateral wall, and when such fixed mode made the lower blade damage, it was comparatively convenient to change, only need take off the pin and can dismantle.
In the thread cutting device of the sewing machine for the bag, the upper end of the air pump is fixed at the upper end of the mounting panel through a screw, the end part of the output shaft of the air pump is annular, the upper blade is provided with a protruding fixing column, and the output shaft of the air pump is sleeved on the fixing column.
The end part of the air pump output shaft is annular, a protruding fixing column is arranged on the upper blade, and the air pump output shaft is sleeved on the fixing column. The fixing mode between the air pump output shaft and the upper blade enables the upper blade to be conveniently detached, and the efficiency of replacing the upper blade is greatly facilitated.
In the thread cutting device for a sewing machine of the above-mentioned type, the blade holder is fixed to the mounting panel by means of screws, the lower end portion of the blade holder is extended out of the lower end surface of the mounting panel, and the upper blade is provided on the exposed portion of the lower end of the blade holder.
In the above thread cutting device for a sewing machine for a bag, the upper blade has a blade edge length smaller than that of the wide groove.
In the above thread cutting device for a sewing machine for a bag, the upper blade has the same length as the lower blade.
The utility model has the advantages that:
1. the working efficiency of the upper blade driven by the cylinder is greatly improved.
2. This product still is equipped with the bottom knife piece that corresponds with last blade on the basis of last blade, and the cutting edge of bottom knife piece is relative with last blade cutting edge, and the shearing effect that will be better than single blade setting on the market far away in the shearing effect.
3. The upper blade component comprises a blade holder and an upper blade, and the upper blade is a vulnerable accessory which is easy to damage along with the length of the using time, so that the upper blade is only required to be replaced when the upper blade is damaged, and the cost is greatly reduced compared with the cost of replacing the whole set of blades of the products on the market.
4. The two sides corresponding to the blade points of the upper blade extend outwards respectively to form the blade lengthening sections, the lengthened blade enables the shearing effect to be greatly improved, the shearing thread end without dead angles can be achieved, and the working efficiency is further improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a sewing machine head; 2. a sewing machine body part; 21. a wide groove; 3. installing a panel; 4. a cylinder; 5. an upper blade assembly; 51. a tool holder; 511. a chute; 52. an upper blade; 521. A matching block; 522. a lengthening section; 523. fixing a column; 6. and (4) a lower blade.
Detailed Description
As shown in figure 1, the thread cutting device of the sewing machine for sewing bags comprises a head part 1 and a body part 2, wherein a mounting panel 3 is fixed on the side surface of the head part 1 close to one end of a thread outlet, an air cylinder 4 is fixed on the mounting panel 3, an upper blade assembly 5 is also fixed at the lower end of the mounting panel 3, the upper blade assembly 5 comprises a blade holder 51 and an upper blade 52 which can slide up and down relative to the blade holder 51, and a transmission shaft at the lower end of the air cylinder 4 is fixedly connected with the upper blade 52 and can drive the upper blade 52 to reciprocate up and down. The product adopts the cylinder 4 to drive the upper blade 52 to reciprocate up and down, and the shearing force of the product is obviously greater than that of the product which is used for cutting thread ends in a hinging way by a blade in a scissors shape on the market. And the upper blade component 5 comprises a blade holder 51 and an upper blade 52, the blade is divided into two parts, as the blade is a vulnerable accessory which is easy to damage along with the service life, the upper blade 52 only needs to be replaced when the product is damaged, the cost is greatly reduced compared with the product on the market which needs to replace the whole set of blades, and the installation and the disassembly are also simple and convenient. In the thread cutting device of the sewing machine for the bag, the knife rest 51 is provided with the sliding groove 511, the upper blade 52 is provided with the matching block 521 matched with the sliding groove 511, the matching mode of the upper blade 52 and the knife rest 51 greatly facilitates the installation of the knife rest 51, and when the upper blade 52 is damaged and needs to be replaced, the upper blade 52 only needs to slide out of the sliding groove 511 and then slide into a new upper blade 52, so that the replacement is greatly facilitated. The two sides of the upper blade 52 corresponding to the cutting edge respectively extend outward to form an edge extension 522. The two sides of the cutting edge of the upper blade 52 correspond to the cutting edges and extend outwards respectively to form a cutting edge lengthening section 522, the lengthened cutting edge enables the cutting effect to be greatly improved, the thread end can be cut without dead angles, and the working efficiency is further improved. The working efficiency of the upper blade 52 driven by the cylinder 4 is greatly improved.
The sewing machine body part 2 corresponding to the upper blade 52 is provided with a wide groove 21, and a lower blade 6 opposite to the blade edge of the upper blade 52 is detachably fixed in the wide groove 21. The lower blade 6 is provided with a plurality of through holes, the side wall of the wide groove 21 is provided with mounting holes corresponding to the through holes, and the lower blade 6 passes through the through holes and the mounting holes through pins to be fixed on the side wall of the wide groove 21. The pin penetrates through the through hole and the mounting hole to be fixed on the side wall of the wide groove 21, the lower blade 6 is convenient to replace when damaged by the fixing mode, and the lower blade can be detached only by taking down the pin. This product still is equipped with the bottom knife 6 that corresponds with last blade 52 on the basis of last blade 52, and the cutting edge of bottom knife 6 is relative with last blade 52 cutting edge, and the shearing effect that single blade set up on the market will be better than far away in shearing effect, can realize the shearing that the end of a thread that is littleer again also can sharp, has improved work efficiency greatly.
The upper end of the cylinder 4 is fixed at the upper end of the mounting panel 3 through a screw, the end part of an output shaft of the cylinder 4 is annular, the upper blade 52 is provided with a convex fixing column 523, and the output shaft of the cylinder 4 is sleeved on the fixing column 523. The end part of the output shaft of the cylinder 4 is annular, the upper blade 52 is provided with a convex fixing column 523, and the output shaft of the cylinder 4 is sleeved on the fixing column 523. The fixing mode between the output shaft of the cylinder 4 and the upper blade 52 facilitates the disassembly of the upper blade 52, and greatly facilitates the efficiency of replacing the upper blade 52. The blade holder 51 is fixed to the mounting panel 3 by screws, the lower end portion of the blade holder 51 protrudes out of the lower end face of the mounting panel 3, and the upper blade 52 is provided on the exposed portion of the lower end of the blade holder 51.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for convenience of description, and are not intended to indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and therefore, are not to be considered as limitations of the present invention, and the fundamental principles, main features, and advantages of the present invention have been shown and described above, as would be understood by those skilled in the art.

Claims (7)

1. The utility model provides a thread cutting device of sewing machine, includes sewing machine head (1) and sewing machine body portion (2), its characterized in that, be fixed with installation panel (3) on the side of sewing machine head (1) near the one end of being qualified for the next round of competitions, be fixed with cylinder (4) on installation panel (3), installation panel (3) lower extreme still is fixed with upper blade subassembly (5), upper blade subassembly (5) include knife rest (51) and relative knife rest (51) gliding upper blade (52) from top to bottom, cylinder (4) lower extreme transmission shaft links firmly and can drive upper blade (52) up-and-down reciprocating motion with upper blade (52), the sewing machine body portion (2) that upper blade (52) correspond has wide groove (21), can dismantle in wide groove (21) and be fixed with upper blade (52) just lower blade (6) of cutting edge.
2. The thread cutting device for a bag sewing machine according to claim 1, wherein the holder (51) is provided with a slide groove (511), the upper blade (52) is provided with a fitting block (521) fitted to the slide groove (511), and both sides of the upper blade (52) corresponding to the blade are extended outwardly to form a blade extension (522).
3. The thread cutting device for a sewing machine of claim 1, wherein the lower blade (6) has a plurality of through holes, the side wall of the wide groove (21) is provided with mounting holes corresponding to the through holes, and the lower blade (6) is fixed to the side wall of the wide groove (21) by a pin passing through the through holes and the mounting holes.
4. The thread cutting device for a sewing machine according to claim 1, wherein the upper end of the cylinder (4) is fixed to the upper end of the mounting panel (3) by means of a screw, the end of the output shaft of the cylinder (4) is formed in a ring shape, the upper blade (52) is provided with a protruding fixing post (523), and the output shaft of the cylinder (4) is fitted over the fixing post (523).
5. The thread cutting device for a bag sewing machine according to claim 1, wherein the blade holder (51) is fixed to the mounting panel (3) by screws, a lower end portion of the blade holder (51) is protruded out of a lower end surface of the mounting panel (3), and the upper blade (52) is provided on an exposed portion of the lower end of the blade holder (51).
6. The thread cutting device of a sewing machine for bags according to claim 1, wherein the upper blade (52) has a blade length smaller than the length of the wide groove (21).
7. The thread cutting device for a sewing machine for bags according to claim 1, wherein the upper blade (52) has a blade edge length equal to that of the lower blade (6).
CN201922026943.2U 2019-11-11 2019-11-11 Thread cutting device of sewing machine for sewing bags Active CN211921871U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922026943.2U CN211921871U (en) 2019-11-11 2019-11-11 Thread cutting device of sewing machine for sewing bags

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922026943.2U CN211921871U (en) 2019-11-11 2019-11-11 Thread cutting device of sewing machine for sewing bags

Publications (1)

Publication Number Publication Date
CN211921871U true CN211921871U (en) 2020-11-13

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Application Number Title Priority Date Filing Date
CN201922026943.2U Active CN211921871U (en) 2019-11-11 2019-11-11 Thread cutting device of sewing machine for sewing bags

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115161900A (en) * 2022-05-31 2022-10-11 苏州琼派瑞特科技股份有限公司 Shearing head device of towel machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115161900A (en) * 2022-05-31 2022-10-11 苏州琼派瑞特科技股份有限公司 Shearing head device of towel machine

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