CN215668490U

CN215668490U - Thread cutting device of sewing machine

Info

Publication number: CN215668490U
Application number: CN202122197305.4U
Authority: CN
Inventors: 张平
Original assignee: Taizhou Lanhang Sewing Equipment Co ltd
Current assignee: Taizhou Lanhang Sewing Equipment Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-01-28
Anticipated expiration: 2031-09-10

Abstract

The utility model belongs to the technical field of sewing, relates to a thread trimming device of a sewing machine, and solves the problems that the thread trimming stability of the thread trimming device of the existing sewing machine is low, the requirements on part machining and assembling precision are high, and the like. The thread trimming device comprises a shuttle table, a movable cutter and a fixed cutter, wherein the shuttle table is provided with a sliding table, the movable cutter is arranged on the sliding table in a sliding mode, the fixed cutter is arranged on the sliding table through a fixed cutter frame assembly, and the movable cutter can slide and be meshed with the fixed cutter to achieve thread trimming. The fixed cutter and the movable cutter are arranged on the sliding table, the fixed cutter and the movable cutter can be effectively guaranteed to be always on the same plane, the thread cutting stability is guaranteed, and the fixed cutter and the movable cutter are both arranged on the sliding table, so that the assembly precision requirement can be reduced, and further the part machining precision is reduced.

Description

Thread cutting device of sewing machine

Technical Field

The utility model belongs to the technical field of sewing and relates to a thread trimming device of 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. Currently, sewing machines are used in large quantities in the clothing manufacturing industry, and in particular, large-scale sewing machines used in factories are more widely used in manufacturers for manufacturing clothing in batches.

And thread trimming mechanism is the crucial mechanism in the sewing machine, chinese patent CN107237063B discloses a thread trimming device of sewing machine, this thread trimming device includes the stationary knife rest, move the sword, stationary knife and faller, it installs on rotating the shuttle platform to move the sword, the stationary knife rest includes connecting portion and installation department, the relative connecting portion of installation department buckle and set up, bar hole one has been seted up on the connecting portion, connecting portion paste and lean on rotating the lateral wall of shuttle platform and pass bar hole one fixedly through the fastener, the stationary knife is fixed on the installation department and is located and moves the sword top, the stationary knife all is located the below of faller with moving the sword, it still is equipped with bottom line trapping assembly to move the sword below, move the sword and can realize the thread trimming with the stationary knife cooperation.

However, in the above patent, the fixed knife is mounted on the shuttle table through the fixed knife holder, the movable knife is arranged on the movable knife driving slider, the movable knife driving slider is designed on the movable knife guide holder, the movable knife guide holder is designed on the shuttle table, that is, the fixed knife and the movable knife are respectively designed on the shuttle table, and the stability of the thread cutting is characterized in that the fixed knife is engaged with the movable knife, and the fixed knife and the movable knife are separately arranged on the shuttle table, which has higher requirements on the processing precision and the assembly precision of parts.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art, and provides a thread trimming device of a sewing machine, which aims to solve the technical problems that: the requirements on the machining precision and the assembling precision of parts are reduced while the stability of the trimming is ensured.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a trimming device of sewing machine, its characterized in that, trimming device includes the shuttle platform, moves sword and stationary knife, the shuttle bench is provided with the slip table, move the sword and slide and set up on this slip table, the stationary knife pass through stationary knife rest subassembly set up in on the slip table, move the sword accessible slide with the stationary knife interlock realizes the trimming.

The working principle is as follows: in the thread trimming device, the fixed cutter and the movable cutter are arranged on the sliding table, the fixed cutter and the movable cutter can be effectively ensured to be always on the same plane, thread trimming stability is ensured, and the fixed cutter and the movable cutter are arranged on the sliding table, so that the assembly precision requirement can be reduced, and further the part processing precision is reduced.

In the thread trimming device of the sewing machine, the fixed cutter frame assembly comprises a fixed cutter frame body and a fixed cutter frame mounting seat, the fixed cutter frame mounting seat is movably arranged on the sliding table along the left and right directions of the shuttle table, and the fixed cutter frame body is movably arranged on the fixed cutter frame mounting seat along the up and down directions of the shuttle table. As designed above, the whole fixed knife can move along the up-down and left-right directions of the shuttle table to realize adjustment, so that the fixed knife and the movable knife can be perfectly matched after installation.

In the thread trimming device of the sewing machine, the fixed cutter frame mounting seat is provided with a first waist-shaped hole along the left and right directions of the shuttle table, the sliding table is provided with a first mounting hole corresponding to the first waist-shaped hole along the left and right directions of the shuttle table, and the first mounting hole and the first waist-shaped hole are simultaneously inserted with a first fastener. When the fixed cutter needs to be adjusted left and right, the first fastener can be unscrewed or taken out, then the first fixed cutter frame mounting seat is moved to a corresponding position, the first fastener is screwed again or inserted into the corresponding hole, and the first fixed cutter frame mounting seat is fixed on the sliding table again.

In the thread trimming device of the sewing machine, the fixed tool rest mounting seat is provided with a vertical sliding groove along the vertical direction of the shuttle table, the fixed tool rest body is provided with a sliding part in sliding fit with the vertical sliding groove, the sliding part is provided with a second waist-shaped hole, the vertical sliding groove is provided with a second mounting hole corresponding to the second waist-shaped hole, and the second mounting hole and the second waist-shaped hole are simultaneously inserted with a second fastening piece. When the fixed cutter needs to be adjusted up and down, the second fastening piece can be unscrewed or taken out, then the fixed cutter frame body is moved to the corresponding position, the second fastening piece is screwed again or inserted into the corresponding hole, and the fixed cutter frame body is fixed on the fixed cutter frame mounting seat again.

In foretell thread trimming device of sewing machine, the slider groove has been seted up on the slip table, the both sides in slider groove have slider seat briquetting A and slider seat briquetting B respectively, it is provided with the slider seat to slide in the slider groove, move the sword and set up on this slider seat. The slider seat slides and sets up in the slider groove to the removal of moving the sword is realized to need not to set up the slider groove in addition on the shuttle frame, effectively avoids original shuttle frame pig iron to make, can produce great wearing and tearing scheduling problem with the long-term motion of slider seat.

Compared with the prior art, the utility model has the following advantages:

in the thread trimming device, the fixed cutter and the movable cutter are arranged on the sliding table, the fixed cutter and the movable cutter can be effectively ensured to be always on the same plane, thread trimming stability is ensured, and the fixed cutter and the movable cutter are arranged on the sliding table, so that the assembly precision requirement can be reduced, and further the part processing precision is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the thread trimming device.

Fig. 2 is a partial structure schematic diagram of the thread trimming device.

Fig. 3 is an exploded view of the present thread trimming apparatus.

FIG. 1 shows a stationary knife; 2, moving the knife; 3, a sliding block seat; 41 slider seat pressure block A41; 42, a slider seat pressing block B; 5 a slider slot; 6, a sliding table; 601, installing a first hole; 7, fixing a tool rest mounting seat; 701, mounting a second hole; 8, fixing a tool rest body; 9 a sliding part; 10 vertical chutes; 11 a first waist-shaped hole 11; 12 a second waist-shaped hole; 13 shuttle table.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, the thread cutting device comprises a shuttle table 13, a movable knife 2 and a fixed knife 1, wherein the shuttle table 13 is provided with a sliding table 6, the movable knife is arranged on the sliding table 6 in a sliding manner, the fixed knife is arranged on the sliding table 6 through a fixed knife frame assembly, and the movable knife can be engaged with the fixed knife through sliding to cut threads.

Specifically, in the present embodiment, the fixed blade carrier assembly includes a fixed blade carrier body 8 and a fixed blade carrier mounting base 7, the fixed blade carrier mounting base 7 is movably provided on the slide table 6 in the left-right direction of the shuttle table 13, and the fixed blade carrier body 8 is movably provided on the fixed blade carrier mounting base 7 in the up-down direction of the shuttle table 13. As designed above, the whole fixed knife can move along the up-down and left-right directions of the shuttle table 13 to realize adjustment, so that the fixed knife and the movable knife can be perfectly matched after installation.

Of course, in this embodiment, the fixed tool rest assembly is preferably separately adjustable, and as another solution, the fixed tool rest may also be designed as an independent structure, which is only inferior to the preferred solution of this embodiment in terms of the adjustment function.

As shown in fig. 2 and 3, the fixed tool rest mounting base 7 is provided with a first waist-shaped hole 11 along the left-right direction of the shuttle table 13, the sliding table 6 is provided with a first mounting hole 601 corresponding to the first waist-shaped hole 11 along the left-right direction of the shuttle table 13, and a first fastener is inserted into the first mounting hole 601 and the first waist-shaped hole 11 simultaneously. Vertical chute 10 has been seted up along shuttle platform 13 upper and lower direction to stationary knife rest mount pad 7, have on the stationary knife rest body 8 with this vertical chute 10 sliding fit's sliding part 9, seted up waist shape hole two 12 on the sliding part 9, seted up on the vertical chute 10 with waist shape hole two 701 that correspond 12, it has fastener two to peg graft simultaneously in mounting hole two 701 and the waist shape hole two 12.

When the fixed cutter needs to be adjusted left and right, the first fastener can be unscrewed or taken out, then the first fixed cutter frame mounting seat 7 is moved to a corresponding position, the first fastener is screwed again or inserted into a corresponding hole, and the first fixed cutter frame mounting seat 7 is fixed on the sliding table 6 again; when the fixed cutter needs to be adjusted up and down, the second fastening piece can be unscrewed or taken out, then the fixed cutter frame body 8 is moved to a corresponding position, the second fastening piece is screwed again or inserted into a corresponding hole, and the fixed cutter frame body 8 is fixed on the fixed cutter frame mounting seat 7 again.

In this embodiment, the fixed tool rest mounting base 7 and the fixed tool rest body 8 are preferably configured as described above for achieving sliding, but are not limited to the above-described embodiments, and for example, the sliding groove may be modified into a sliding rail or the like according to actual needs, or the positions of the sliding groove and the sliding portion 9 may be interchanged without departing from the scope of the present invention.

The mounting holes and the fasteners can adopt threaded holes and screws, pin holes and pins or other structures capable of realizing fastening.

As shown in fig. 2 and 3, a slider groove 5 is formed in the sliding table 6, a slider seat press block a41 and a slider seat press block B42 are respectively arranged on two sides of the slider groove 5, a slider seat 3 is slidably arranged in the slider groove 5, and a movable knife is arranged on the slider seat 3. Slider seat 3 slides and sets up in slider groove 5 to the removal of moving the sword is realized to need not to set up slider groove 5 in addition on the shuttle frame, effectively avoids original shuttle frame pig iron to make, can produce great wearing and tearing scheduling problem with slider seat 3 long-term motion.

The working principle of the utility model is as follows: in this thread trimmer devices, stationary knife and move the sword and all set up on slip table 6, can effectively guarantee the stationary knife and move the sword on a plane all the time, ensure thread trimmer stability to both install on slip table 6, can reduce the assembly precision requirement, and then reduce the part machining precision.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The utility model provides a trimming device of sewing machine, its characterized in that, trimming device includes the shuttle platform, moves sword and stationary knife, the shuttle bench is provided with the slip table, move the sword and slide and set up on this slip table, the stationary knife pass through stationary knife rest subassembly set up in on the slip table, move the sword accessible slide with the stationary knife interlock realizes the trimming.

2. The thread trimming device according to claim 1, wherein the fixed blade carrier assembly includes a fixed blade carrier body and a fixed blade carrier mounting seat, the fixed blade carrier mounting seat is movably provided on the slide table in a left-right direction of the shuttle table, and the fixed blade carrier body is movably provided on the fixed blade carrier mounting seat in an up-down direction of the shuttle table.

3. The thread trimmer according to claim 2, wherein the fixed cutter frame mounting seat is provided with a first waist-shaped hole along the left-right direction of the shuttle table, the sliding table is provided with a first mounting hole corresponding to the first waist-shaped hole along the left-right direction of the shuttle table, and the first mounting hole and the first waist-shaped hole are simultaneously inserted with a first fastener.

4. The thread trimming device of claim 2 or 3, wherein the stationary knife rest mounting seat is provided with a vertical sliding groove along the vertical direction of the shuttle table, the stationary knife rest body is provided with a sliding part in sliding fit with the vertical sliding groove, the sliding part is provided with a second waist-shaped hole, the vertical sliding groove is provided with a second mounting hole corresponding to the second waist-shaped hole, and a second fastening member is inserted into the second mounting hole and the second waist-shaped hole.

5. The thread trimming device of sewing machine according to claim 1, 2 or 3, wherein the sliding table is provided with a slider groove, both sides of the slider groove are respectively provided with a slider holder pressing block A and a slider holder pressing block B, the slider groove is provided with a slider holder in a sliding manner, and the movable knife is arranged on the slider holder.