CN213113822U - Automatic backstitch mechanism of sewing machine - Google Patents
Automatic backstitch mechanism of sewing machine Download PDFInfo
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- CN213113822U CN213113822U CN202021999840.0U CN202021999840U CN213113822U CN 213113822 U CN213113822 U CN 213113822U CN 202021999840 U CN202021999840 U CN 202021999840U CN 213113822 U CN213113822 U CN 213113822U
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Abstract
The utility model discloses an automatic backstitch mechanism of sewing machine relates to sewing technical field. The automatic backstitch mechanism of the sewing machine comprises a sewing machine shell, wherein the lower surface of the sewing machine shell is fixedly connected with a supporting base, the front of the sewing machine shell is fixedly connected with a chute, the lower surface of the supporting base is fixedly connected with a workbench, a rectangular hole is concavely arranged on the upper surface of the workbench, and a wave buffer block is fixedly connected to the upper surface of the workbench; the preceding material feeding unit that is equipped with of spout, material feeding unit includes the slider, slider sliding connection is at the spout inner wall, the preceding fixedly connected with lift box of slider, fixed plate of dead lever right side fixedly connected with, the fixed plate right side fixedly connected with handle of dead lever, handle circumference surface runs through sliding connection in the lift box right side, the horizontal slip that can the direct control slider makes the cloth automatically carry out the operation of following seam, backstitch, great improvement work efficiency, the effectual condition that has reduced the parcel line takes place.
Description
Technical Field
The utility model relates to a sewing technical field specifically is an automatic backstitch mechanism of 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. 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. Traditional industrial sewing machine is because structural design is unreasonable, and the feeding wheel drive is inconvenient, and the condition such as line is wrapped up in the very easy emergence of following seam and backstitch conversion causes the damage of the clothing of sewing, and it is very troublesome, consuming time to follow seam and backstitch operation, and sewing inefficiency, consequently needs an automatic backstitch mechanism of sewing machine urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic backstitch mechanism of sewing machine to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an automatic backstitch mechanism of a sewing machine comprises a sewing machine shell, wherein a supporting base is fixedly connected to the lower surface of the sewing machine shell, a sliding groove is fixedly connected to the front of the sewing machine shell, a workbench is fixedly connected to the lower surface of the supporting base, a rectangular hole is formed in the upper surface of the workbench in a concave mode, and a wave buffer block is fixedly connected to the upper surface of the workbench; the utility model discloses a lifting box, including spout, slider, lifting box, baffle, fixed plate, the preceding material feeding unit that is equipped with of spout, material feeding unit includes the slider, slider sliding connection is at the spout inner wall, the preceding fixedly connected with lift box of slider, the through-hole has been seted up to lift box upper surface, inner wall fixedly connected with spring two about the lift box, two right fixedly connected with baffles of spring, the baffle right side fixedly connected with dop, baffle right side fixedly connected with dead lever, dead lever right side fixedly connected with a fixed plate, the fixed plate right side fixedly connected with handle of dead lever, handle circumference surface runs through sliding connection in the lift box right side.
Preferably, the inner wall of the through hole of the lifting box is connected with a sliding plate in a sliding mode, the left face of the sliding plate is provided with a clamping tooth, and the lower surface of the clamping tooth of the sliding plate is movably attached to the upper surface of the clamping head.
Preferably, the lower surface of the sliding plate is provided with a feeding plate, the upper surface of the feeding plate is fixedly connected with a fixed plate, the upper surface of the feeding plate is fixedly connected with a spring, the front surface of the fixed plate is connected with a movable column in a penetrating and rotating mode, and the circumferential surface of the movable column is connected to the front surface of the sliding plate in a penetrating and rotating mode.
Preferably, the lower surface of the feeding plate is arc-shaped, the feeding plate corresponds to the wave buffer block in position, the upper surface of the chuck is rectangular, and the right surface and the lower surface of the chuck are arc-shaped.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the automatic backstitch mechanism of the sewing machine comprises a fixed rod, a spring, a sliding plate, a slider, a clamping head, a sliding plate, a feeding wheel, a sliding block, cause the damage of the clothing of sewing up, it is very troublesome, consuming time to move in the same direction as seam and backstitch operation, and sewing inefficiency, through above-mentioned design, the horizontal slip that can the direct control slider makes the cloth automatically carry out the operation in the same direction as seam, backstitch, great improvement work efficiency, the effectual condition that has reduced and has wrapped up in the line takes place.
(2) This automatic backstitch mechanism of sewing machine, when the slip of slider drove the feed table and removes, cushioned it by the spring of feed table upper surface fixed connection, made the feed table lower surface cloth of laminating more when removing, because the arc structure of wave buffer block makes the cloth can not be sharp laminating and slide at the workstation surface when removing, great reduction the friction of cloth, the effectual quality of protecting the cloth.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a schematic rear view of the present invention;
fig. 4 is an enlarged view of the point B in fig. 3 according to the present invention.
In the figure: the sewing machine comprises a sewing machine shell 1, a sliding chute 11, a rectangular hole 13, a workbench 14, a wave buffer block 15, a support base 16, a feeding device 2, a sliding block 21, a sliding plate 22, a handle 23, a feeding plate 24, a movable column 25, a spring 26, a fixed plate 27, a baffle plate 28, a spring II 29, a lifting box 3, a fixed rod 31 and a clamping head 32.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an automatic backstitch mechanism of a sewing machine comprises a sewing machine shell 1, wherein a supporting base 16 is fixedly connected to the lower surface of the sewing machine shell 1, a sliding groove 11 is fixedly connected to the front surface of the sewing machine shell 1, a workbench 14 is fixedly connected to the lower surface of the supporting base 16, a rectangular hole 13 is concavely arranged on the upper surface of the workbench 14, and a wave buffer block 15 is fixedly connected to the upper surface of the workbench 14; the front of the chute 11 is provided with a feeding device 2, the feeding device 2 comprises a slide block 21, the slide block 21 is connected with the inner wall of the chute 11 in a sliding way, the front of the slide block 21 is fixedly connected with a lifting box 3, the upper surface of the lifting box 3 is provided with a through hole, the left inner wall of the lifting box 3 is fixedly connected with a spring II 29, the right side of the spring II 29 is fixedly connected with a baffle 28, the right side of the baffle 28 is fixedly connected with a clamping head 32, the right side of the baffle 28 is fixedly connected with a fixed rod 31, the right side of the fixed rod 31 is fixedly connected with a fixed plate, the right side of the fixed plate of the fixed rod 31 is fixedly connected with a handle 23, the circumferential surface of the handle 23 is connected with the right side of the lifting box 3 in a penetrating and sliding way, the inner wall of the through hole of the lifting box 3 is connected, the spring 26 is fixedly connected with the upper surface of the feeding plate 24, the movable column 25 is connected with the front surface of the fixing plate 27 in a penetrating and rotating mode, the circumferential surface of the movable column 25 is connected to the front surface of the sliding plate 22 in a penetrating and rotating mode, the lower surface of the feeding plate 24 is arc-shaped, the feeding plate 24 corresponds to the wave buffer block 15 in position, the upper surface of the clamping head 32 is rectangular, and the right surface and the lower surface of the clamping head 32 are arc-shaped. When the sewing machine shell 1 works, when cloth covers the upper surface of the wave buffer block 15, an operator presses the handle 23 to enable the fixed rod 31 to move leftwards to drive the baffle 28 to move leftwards to enable the spring II 29 to contract leftwards and to drive the chuck 32 fixedly connected to the right side of the baffle 28 to separate from the gear teeth arranged on the sliding plate 22 to enable the sliding plate 22 to move downwards, so that the feeding plate 24 descends to clamp the cloth covering the upper surface of the wave buffer block 15, the feeding plate 24 drives the cloth to move on the upper surface of the wave buffer block 15 by sliding the sliding block 21 in the sliding groove 11, due to the special requirement of sewing the cloth, the sewing machine needs to continuously perform forward sewing and backward sewing operations in the sewing process, and the forward sewing and backward sewing time is determined according to specific sewing conditions, the traditional industrial sewing machine is unreasonable in structural design, the feeding wheel is inconvenient to drive, and the conditions such as thread wrapping and the like are easy to, cause the damage of the clothing of sewing up, it is very troublesome with the backstitch operation in the same direction as the seam, consuming time, sewing inefficiency, through the above-mentioned design, the horizontal slip that can direct control slider 21 makes the cloth automatic carry out in the same direction as the seam, the operation of backstitch, great improvement work efficiency, the effectual condition that wraps up in the line that has reduced takes place, when slider 21's slip drives feed table 24 and removes, spring 26 by fixed surface connection on feed table 24 cushions it, make feed table 24 lower surface laminate the cloth more when removing, because wave buffer block 15's arc structure makes the cloth can not be sharp laminating and slide at workstation 14 surface when removing, great reduction the friction of cloth, the effectual quality of protecting the cloth.
The working principle is as follows:
the first step is as follows: when the sewing machine shell 1 works, when cloth covers the upper surface of the wave buffer block 15, an operator presses the handle 23 to enable the fixed rod 31 to move leftwards to drive the baffle 28 to move leftwards to enable the spring II 29 to contract leftwards and to drive the chuck 32 fixedly connected to the right side of the baffle 28 to separate from the gear teeth arranged on the sliding plate 22 to enable the sliding plate 22 to move downwards, so that the feeding plate 24 descends to clamp the cloth covering the upper surface of the wave buffer block 15, the feeding plate 24 drives the cloth to move on the upper surface of the wave buffer block 15 by sliding the sliding block 21 in the sliding groove 11, due to the special requirement of sewing the cloth, the sewing machine needs to continuously perform forward sewing and backward sewing operations in the sewing process, and the forward sewing and backward sewing time is determined according to specific sewing conditions, the traditional industrial sewing machine is unreasonable in structural design, the feeding wheel is inconvenient to drive, and the conditions such as thread wrapping and the like are easy to, cause the damage of the clothing of sewing up, it is very troublesome, consuming time to move in the same direction as seam and backstitch operation, and sewing inefficiency, through above-mentioned design, the horizontal slip that can direct control slider 21 makes the cloth automatically carry out the operation in the same direction as seam, backstitch, great improvement work efficiency, the effectual condition that has reduced and has wrapped up in the line takes place.
The second step is that: when slider 21's slip drove the flitch 24 and removes, the spring 26 by the fixed surface connection on the flitch 24 cushions it, makes the flitch 24 lower surface laminate the cloth more when removing, because wave buffer block 15's arc structure makes the cloth can not be the straight line laminating and at 14 surface sliding of workstation when removing, great reduction the friction of cloth, the effectual quality of protecting the cloth.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an automatic backstitch mechanism of sewing machine, includes sewing machine shell (1), its characterized in that: the lower surface of the sewing machine shell (1) is fixedly connected with a supporting base (16), the front of the sewing machine shell (1) is fixedly connected with a sliding chute (11), the lower surface of the supporting base (16) is fixedly connected with a workbench (14), a rectangular hole (13) is recessed in the upper surface of the workbench (14), and the upper surface of the workbench (14) is fixedly connected with a wave buffer block (15);
the front of the chute (11) is provided with a feeding device (2).
2. The automatic backstitch mechanism of the sewing machine according to claim 1, characterized in that: material feeding unit (2) include slider (21), slider (21) sliding connection is in spout (11) inner wall, the preceding fixedly connected with of slider (21) goes up and down box (3), the through-hole has been seted up to go up and down box (3) upper surface, go up and down box (3) left side inner wall fixedly connected with spring two (29), spring two (29) right side fixedly connected with baffle (28), baffle (28) right side fixedly connected with dop (32), baffle (28) right side fixedly connected with dead lever (31), dead lever (31) right side fixedly connected with a fixed plate, the fixed plate right side fixedly connected with handle (23) of dead lever (31), handle (23) circumference surface runs through sliding connection in the box (3) right side that goes up and down.
3. The automatic backstitch mechanism of the sewing machine according to claim 2, characterized in that: the inner wall of the through hole of the lifting box (3) is connected with a sliding plate (22) in a sliding mode, the left face of the sliding plate (22) is provided with a clamping tooth, and the lower surface of the clamping tooth of the sliding plate (22) is movably attached to the upper surface of the clamping head (32).
4. The automatic backstitch mechanism of a sewing machine according to claim 3, characterized in that: the lower surface of the sliding plate (22) is provided with a feeding plate (24), the upper surface of the feeding plate (24) is fixedly connected with a fixing plate (27), the upper surface of the feeding plate (24) is fixedly connected with a spring (26), the front surface of the fixing plate (27) is connected with a movable column (25) in a penetrating and rotating mode, and the circumferential surface of the movable column (25) is connected to the front surface of the sliding plate (22) in a penetrating and rotating mode.
5. The automatic backstitch mechanism of the sewing machine according to claim 4, characterized in that: the lower surface of the feeding plate (24) is arc-shaped, and the feeding plate (24) corresponds to the wave buffer block (15).
6. The automatic backstitch mechanism of the sewing machine according to claim 2, characterized in that: the upper surface of the clamping head (32) is rectangular, and the right surface and the lower surface of the clamping head (32) are arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021999840.0U CN213113822U (en) | 2020-09-14 | 2020-09-14 | Automatic backstitch mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021999840.0U CN213113822U (en) | 2020-09-14 | 2020-09-14 | Automatic backstitch mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213113822U true CN213113822U (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021999840.0U Active CN213113822U (en) | 2020-09-14 | 2020-09-14 | Automatic backstitch mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213113822U (en) |
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2020
- 2020-09-14 CN CN202021999840.0U patent/CN213113822U/en active Active
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