CN209353063U - Anti-wrinkle device for lockstitch sewing machine - Google Patents

Abstract

The utility model discloses an anti-wrinkle device for a lockstitch sewing machine, which comprises a presser foot, a needle hole, a No. 1 pressing block and a No. 2 pressing block. There is a No. 1 sliding hole on the side, and the upper end of the inner side of the No. 1 sliding hole is slidably connected to the No. 1 slider, and a No. 1 limit block is arranged in the middle part of the left side of the No. 1 slider in the No. 1 sliding hole. When the utility model is working, the sewing machine needle descends to the lower end of the pressing plate to press against the No. 1 slider and the No. 2 slider. As the sewing machine needle continues to descend, the No. 1 slider slides down and passes through the movable rod and the two slope surfaces. The cooperation pushes the No. 1 pressing block to slide down to the left, and at the same time, the No. 2 sliding block slides and pushes the No. 2 pressing block to slide down through the lifting rod. The No. 2 pressing block will slide down to clamp the sewing material with the sewing machine table, and the first The pressure block will straighten the sewing material to the left while pressing the sewing material, thereby preventing the sewing material from wrinkling, and saving the post-sewing finishing work.

Description

Anti-wrinkle device for lockstitch sewing machine

technical field

The utility model relates to an anti-wrinkle device, in particular to an anti-wrinkle device for a locket sewing machine.

Background technique

A lockstitch sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing material. Lockstitch sewing machine can sew cotton, hemp, silk, wool, artificial fiber and other fabrics and leather, plastic and other products. The stitches are neat and beautiful, flat and firm.

Existing lockstitch sewing machines generally include a platen and a foot pedal installed on the frame. The machine head and the needle plate are installed on the platen. The machine head is provided with machine needles, and the sewing material can be sewn on the needle plate. But when sewing, the sewing material cannot be made to be tight, so that the upper thread or the bottom thread that is sewn out is sometimes tight and sometimes loose, causing wrinkles to occur in the sewing material, and increases the follow-up ironing treatment work of sewing, and increases the production cost. Therefore, those skilled in the art provide an anti-wrinkle device for lockstitch sewing machines to solve the problems raised in the above-mentioned background technology.

Contents of the invention

The purpose of this utility model is to provide an anti-wrinkle device for a lockstitch sewing machine to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

An anti-wrinkle device for a lockstitch sewing machine, comprising a presser foot, a needle hole, a No. 1 pressing block and a No. 2 pressing block. The upper end of the inner side of the No. 1 sliding hole is slidably connected to the No. 1 slider, and the middle part of the left side of the No. 1 slider is provided with a No. 1 limit block in the No. 1 sliding hole. There is a protruding block, and a No. 1 spring is arranged between the upper end of the protruding block and the lower end of the No. 1 slider, and the lower end of the front side of the No. 1 slider is provided with a movable rod, and the lower end of the movable rod is connected to the right side of the upper end of the No. 1 pressing block. The left side of the upper end of the No. 1 briquetting block is set as the No. 1 slope surface, and the left lower end of the No. 1 slide hole corresponds to the No. 1 slope surface and is set as the No. 2 slope surface. The No. 1 briquetting block is made of iron into, and the middle part of the No. 2 slope is inlaid with a permanent magnet.

The presser foot is provided with a No. 2 sliding hole on the right side of the needle hole, and the upper end of the No. 2 sliding hole is slidably connected to the No. 2 slider. No. 1 limit block, and the middle part of the lower end of the No. 2 slider is connected to the lifting rod. The middle part of the outer side of the lifting rod is provided with a positioning sleeve, and the outer side of the lifting rod is provided with a No. 2 spring between the lower end of the No. 2 slider and the upper end of the positioning sleeve. The lower end of the elevating rod is connected with the No. 2 briquetting block.

A sewing machine needle is arranged above the needle hole, the upper half of the sewing machine needle is provided with a baffle plate, and the lower half of the sewing machine needle is provided with a pressing plate, and the outer middle part of the sewing machine needle is located between the lower end of the baffle plate and the upper end of the pressing plate. A No. 3 spring is sleeved therebetween.

As a further solution of the present invention: the lower end of the front side of the No. 1 slider is connected to the upper end of the movable rod through the No. 1 rotating shaft, and the lower end of the movable rod is connected to the right side of the upper end of the No. 1 pressing block through the No. 2 rotating shaft.

As a further solution of the present invention: the lower end of the No. 1 pressing block is provided with a No. 1 anti-slip mat, and the lower end of the No. 2 pressing block is provided with a No. 2 anti-slip mat.

As a further solution of the present invention: the baffle plate is provided with a No. 1 threading hole on the right side of the sewing machine needle, and the said pressing plate is provided with a No. 2 threading hole on the right side of the sewing machine needle.

As a further solution of the present invention: the outer side of the sewing machine needle is fixedly connected to the baffle plate, and the outer side of the sewing machine needle is slidably connected to the pressure plate.

As a further solution of the utility model: the outer side of the lifting rod is slidably connected to the positioning sleeve, and the outer side of the positioning sleeve is fixedly connected to the No. 2 sliding hole.

As a further solution of the present invention: a connecting piece is provided on the left side of the upper end of the presser foot, and a groove is provided in the middle of the upper end of the connecting piece.

Compared with the prior art, the beneficial effects of the utility model are:

1. When the utility model is working, the sewing machine needle descends to the lower end of the pressing plate and presses against the No. 1 slider and the No. 2 slider. As the sewing machine needle continues to descend, the No. 1 slider slides down and passes through the movable rod and the two sliders. The cooperation of the slope surface pushes the No. 1 pressing block to slide down to the left, and at the same time, the No. 2 sliding block slides and pushes the No. 2 pressing block to slide down through the lifting rod. The No. 2 pressing block will slide down to clamp the sewing material with the sewing machine table. The No. 1 pressing block will straighten the sewing material to the left while pressing the sewing material, thereby preventing the sewing material from wrinkling, and saving the follow-up ironing treatment work after sewing.

2. The No. 1 spring and the No. 2 spring provided in the utility model can respectively return the No. 1 slider and the No. 2 slider, so that the No. 1 pressing block and the No. 2 pressing block can return to their original positions without pressing or pulling Sewing material, and then it is convenient to move the position of the sewing material.

3. The permanent magnet of the present invention can hold the left part of the No. 1 briquetting block, preventing the left part of the No. 1 briquetting block from falling down to jam the sewing material after returning to its original position, and affecting the position movement of the sewing material.

Description of drawings

Figure 1 is a structural schematic diagram of an anti-wrinkle device for a lockstitch sewing machine.

Fig. 2 is an enlarged schematic diagram of A in an anti-wrinkle device for a lockstitch sewing machine.

Fig. 3 is a top structural schematic diagram of a baffle in an anti-wrinkle device for a lockstitch sewing machine.

Fig. 4 is a top structural schematic diagram of a pressing plate in an anti-wrinkle device for a lockstitch sewing machine.

In the figure: 1-presser foot, 2-connector, 3-needle hole, 4-sliding hole No. 1, 5-slider No. 1, 6-limiting block No. 1, 7-protruding block, 8-one No. spring, 9-No. 1 rotating shaft, 10-moving rod, 11-No. 2 rotating shaft, 12-No. 1 pressing block, 13-No. 1 anti-skid pad, 14-Permanent magnet, 15-No. 2 sliding hole, 16-No. 2 Slider, 17-No. 2 limit block, 18-lifting rod, 19-positioning sleeve, 20-No. 2 spring, 21-No. 2 pressure block, 22-No. 2 anti-skid pad, 23-Sewing machine needle, 24-stop Plate, No. 241-No. 1 threading hole, 25-press plate, No. 251-No. 2 threading hole, No. 26-No. 3 spring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1 to 4. In the embodiment of the present utility model, an anti-wrinkle device for a lockstitch sewing machine includes a presser foot 1, a needle hole 3, a No. 1 pressing block 12 and a No. 2 pressing block 21. The middle part of the presser foot 1 A needle hole 3 is provided, and the presser foot 1 is provided with a No. 1 slide hole 4 on the left side of the needle hole 3. The upper end of the No. 1 slide hole 4 is slidably connected to the No. 1 slider 5 on the inner side, and the left side of the No. 1 slider 5 The middle part is provided with a No. 1 limit block 5 in the No. 1 sliding hole 4, and the lower end of the right side wall in the No. 1 sliding hole 4 is provided with a protruding block 7, and between the upper end of the protruding block 7 and the lower end of the No. 1 sliding block 5 A No. 1 spring 8 is provided, and the lower end of the front side of the No. 1 slider 6 is provided with a movable rod 10, and the lower end of the movable rod 10 is connected to the right side of the upper end of the No. 1 pressing block 12, and the left side of the upper end of the No. 1 pressing block 12 is set as a No. 1 slope surface, and the lower left side of the No. 1 sliding hole 4 corresponds to the No. 1 slope surface and is set as the No. 2 slope surface. The No. 1 pressing block 12 is made of iron, and the middle part of the No. 2 slope surface is inlaid with permanent magnet14.

The presser foot 1 is provided with a No. 2 sliding hole 15 on the right side of the needle hole 3, and the upper end of the No. 2 sliding hole 15 is slidably connected to the No. 2 slider 16, and the lower end of the No. 2 slider 16 is on the right side of the No. The sliding hole 15 is provided with a No. 2 limit block 17, and the middle part of the lower end of the No. 2 slider 16 is connected to the lifting rod 18. The middle part of the outer side of the lifting rod 18 is provided with a positioning sleeve 19, and the outer side of the lifting rod 18 is on the second slider 16. A No. 2 spring 20 is arranged between the lower end and the upper end of the positioning sleeve 19 , and the lower end of the elevating rod 18 is connected with a No. 2 pressing block 21 .

A sewing machine needle 23 is arranged above the needle hole 3, a baffle plate 24 is provided on the upper half of the sewing machine needle 23, and a pressing plate 25 is provided on the lower half of the sewing machine needle 23, and the outer middle part of the sewing machine needle 23 is A No. 3 spring 26 is sheathed between the lower end of the baffle plate 24 and the upper end of the pressing plate 25 .

The lower end of the front side of the No. 1 slide block 5 is rotatably connected to the upper end of the movable rod 10 through the No. 1 rotating shaft 9, and the lower end of the movable rod 10 is rotatably connected to the right side of the upper end of the No. 1 pressure block 12 through the No. 2 rotating shaft 11.

A No. 1 anti-slip mat 13 is provided at the lower end of the No. 1 pressing block 12 , and a No. 2 anti-slip mat 22 is disposed at the lower end of the No. 2 pressing block 21 .

The baffle plate 24 is provided with a No. 1 threading hole 241 on the right side of the sewing machine needle 23 , and the press plate 25 is provided with a No. 2 threading hole 251 on the right side of the sewing machine needle 23 .

The outer side of the sewing machine needle 23 is fixedly connected to the baffle plate 24 , and the outer side of the sewing machine needle 23 is slidably connected to the pressing plate 25 .

The outer side of the lifting rod 18 is slidably connected to the positioning sleeve 19, and the outer side of the positioning sleeve 19 is fixedly connected to the No. 2 sliding hole 15.

A connecting piece 2 is arranged on the left side of the upper end of the presser foot 1 , and a groove is arranged in the middle of the upper end of the connecting piece 2 .

The working principle of the utility model is:

When the lockstitch anti-wrinkle device is working, the sewing machine needle 23 descends to the lower end of the pressing plate 25 and presses against the No. 1 slider 5 and the No. 2 slider 16. As the sewing machine needle 23 continues to descend, the No. 1 slider 5 slides downward. And push the No. 1 briquetting block 12 to slide to the lower left by the cooperation of the movable rod 10 and the two slope surfaces, while the No. 2 sliding block 16 slides and pushes the No. 2 briquetting block 21 to slide downward by the elevating rod 18, and the No. 2 briquetting block 21 will slide down to clamp the sewing material with the sewing machine table, and the No. 1 pressure block 12 will straighten the sewing material to the left while pressing the sewing material, thereby preventing the sewing material from wrinkling, and saving the subsequent whole process of sewing. Ironing works.

The No. 1 spring 8 and the No. 2 spring 20 provided in the anti-wrinkle device of the lockstitch machine can respectively make the No. 1 slider 5 and the No. 2 slider 16 return to their original positions, so that the No. 1 pressing block 12 and the No. 2 pressing block 21 return to their original positions. , no longer compress or pull the sewing material, and then move the position of the sewing material conveniently.

The permanent magnet 14 provided in the anti-wrinkle device of the lockstitch machine can suck the left part of the No. 1 briquetting block 12, prevent the left part of the No. 1 briquetting block 12 from falling down to block the sewing material after homing, and affect the position movement of the sewing material.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (7)

1. An anti-wrinkle device for a lockstitch sewing machine, comprising a presser foot (1), a needle hole (3), a No. 1 press block (12) and a No. 2 press block (21), characterized in that the presser foot (1 ) is provided with a needle hole (3) in the middle, and the presser foot (1) is provided with a No. The slider (5), and the middle part of the left side of the No. 1 slider (5) is provided with a No. 1 limit block (6) in the No. 1 slide hole (4), and the lower end of the right side wall in the No. 1 slide hole (4) A protruding block (7) is provided, and a No. 1 spring (8) is provided between the upper end of the protruding block (7) and the lower end of the No. 1 slider (5). The lower end of the front side of the No. 1 slider (5) is provided with The movable rod (10), and the lower end of the movable rod (10) is connected to the right side of the upper end of the No. 1 pressing block (12), and the left side of the upper end of the No. 1 pressing block (12) is set as the No. 1 slope surface, and the No. 1 sliding hole ( 4) The lower end of the inner left side corresponds to the No. 1 slope surface and is set as the No. 2 slope surface. The No. 1 pressing block (12) is made of iron, and the middle part of the No. 2 slope surface is inlaid with a permanent magnet (14); The presser foot (1) is provided with a No. 2 sliding hole (15) on the right side of the needle piercing hole (3), and the upper end of the inner side of the No. 2 sliding hole (15) is slidably connected to the No. 2 slider (16). The lower end of the right side of the No. 2 slider (16) is provided with a No. 2 limit block (17) in the No. 2 slide hole (15), and the middle part of the lower end of the No. 2 slider (16) is connected to the lifting rod (18), and the lifting rod (18) A positioning sleeve (19) is provided in the middle of the outer side, and a No. 2 spring (20) is provided on the outer side of the lifting rod (18) between the lower end of the No. 2 slider (16) and the upper end of the positioning sleeve (19). The lower end of the rod (18) is connected with the No. 2 briquetting block (21); A sewing machine needle (23) is arranged above the needle hole (3), the upper half of the sewing machine needle (23) is provided with a baffle (24), and the lower half of the sewing machine needle (23) is provided with a pressing plate (25), the outer middle part of the sewing machine needle (23) is provided with a No. 3 spring (26) between the lower end of the baffle plate (24) and the upper end of the pressure plate (25). 2. An anti-wrinkle device for locket sewing machine according to claim 1, characterized in that the lower end of the front side of the No. 1 slider (5) is connected to the upper end of the movable rod (10) in rotation through the No. 1 rotating shaft (9), and The lower end of the movable rod (10) is connected to the right side of the upper end of the No. 1 briquetting block (12) through the rotation of the No. 2 rotating shaft (11). 3. The anti-wrinkle device of lockstitch sewing machine according to claim 1, characterized in that, the lower end of the No. 1 pressing block (12) is provided with a No. 1 anti-slip pad (13), and the lower end of the No. 2 pressing block (21) is No. two anti-skid pads (22) are provided. 4. The anti-wrinkle device of lockstitch sewing machine according to claim 1, characterized in that, the baffle (24) is provided with a No. 1 threading hole (241) on the right side of the sewing machine needle (23), and the pressing plate (25) is provided with No. 2 threading holes (251) on the sewing machine needle (23) right side. 5. The anti-wrinkle device for lockstitch sewing machines according to claim 1, characterized in that, the outer side of the sewing machine needle (23) is fixedly connected to the baffle plate (24), and the outer side of the sewing machine needle (23) is slidably connected to the pressure plate ( 25). 6. The anti-wrinkle device of lockstitch sewing machine according to claim 1, characterized in that, the outer side of the lifting rod (18) is slidably connected to the positioning sleeve (19), and the outer side of the positioning sleeve (19) is fixedly connected to the No. 2 sliding hole (15). 7. The anti-wrinkle device of lockstitch sewing machine according to claim 1, characterized in that, the upper left side of the presser foot (1) is provided with a connecting piece (2), and the middle part of the upper end of the connecting piece (2) is provided with a concave groove.