CN113493966B - Automatic shearing device for sewing residual thread and gas transmission structure thereof - Google Patents
Automatic shearing device for sewing residual thread and gas transmission structure thereof Download PDFInfo
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- CN113493966B CN113493966B CN202010249436.XA CN202010249436A CN113493966B CN 113493966 B CN113493966 B CN 113493966B CN 202010249436 A CN202010249436 A CN 202010249436A CN 113493966 B CN113493966 B CN 113493966B
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/06—Devices for severing the needle or lower thread and for disposing of the severed thread end ; Catching or wiping devices for the severed thread
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Abstract
The embodiment of the application provides an automatic shearing device for sewing a residual thread and an air conveying structure of the automatic shearing device, the automatic shearing device comprises an air conveying structure, an actuator and a cutter structure, the air conveying structure comprises a shell cover, an air conveying pipe is arranged in the shell cover, the air conveying pipe comprises an air suction section and a conveying section, an air inlet hole communicated with the air suction section and the conveying section and an air exhaust hole communicated with the conveying section are formed in the shell cover, and a suction inlet is formed in the end part, far away from the conveying section, of the air suction section; the actuator is fixed in the shell cover; the cutter structure is arranged above the actuator and comprises a cutter holder, a fixed cutter and a movable cutter which is matched with the fixed cutter for shearing, wherein the suction inlet is formed at the lower position of the shearing position of the fixed cutter and the movable cutter. Therefore, the labor cost can be saved and the production efficiency can be improved.
Description
Technical Field
The application relates to the technical field of sewing machines, in particular to an automatic shearing device for sewing residual threads and an air conveying structure of the automatic shearing device.
Background
The sewing machine is classified into two types, which are a Lock sewing (Lock sewing) and a Chain sewing (Chain sewing) in which a sewing portion of a fabric is fed along a sewing direction of an upper surface of a needle plate, a stitch is formed under the needle plate by at least one needle that holds a needle thread and moves up and down, the stitch is caught by advancing a hook that performs a forward and backward movement in a direction substantially orthogonal to a vertical movement path of the needle, and the caught stitch is looped (looped) with other threads by the hook thread held by the hook, thereby forming a stitch of the Chain sewing at the sewing portion of the fabric.
The chain seam is mainly applied to decorative sewing of underwear, lappets, sleeves and the like, in order to avoid the loosening of the sewing thread, when the chain seam is sewn on the upper surface and the lower surface of a cloth, the length of the chain seam is far longer than that of the cloth, the cloth is exposed outside to form sewing residual threads, then the sewing residual threads are cut one by one through manpower by scissors, a proper length is reserved to be used as reverse folding, and finally the reverse folding sewing residual threads are sewn and fixed by a lock seam sewing machine.
However, the existing method for processing the sewing waste thread needs a lot of manpower to operate, so that the labor cost cannot be effectively reduced; in addition, the manual operation method is also very inefficient in production efficiency, and the quality stability is difficult to control and ensure.
In view of the above, the present inventors have made extensive studies to solve the above problems in view of the above drawbacks of the prior art and by applying the principles of the present invention, and thus, the present invention has been made an improved object.
Disclosure of Invention
The application aims to provide an automatic shearing device for sewing residual threads and an air conveying structure thereof, which can save labor operation cost and improve production efficiency.
In order to achieve the above object, an embodiment of the present application provides an automatic shearing apparatus for sewing a residual thread, including an air conveying structure, an actuator, and a cutter structure, where the air conveying structure includes a housing cover, an air conveying pipe is arranged inside the housing cover, the air conveying pipe includes an air suction section and a conveying section communicated with the air suction section, an air inlet communicated with the air suction section and the conveying section and an air outlet communicated with the conveying section are arranged on the housing cover, and a suction inlet is arranged at an end of the air suction section far from the conveying section; the actuator is fixed in the shell cover; the cutter structure is arranged above the actuator and comprises a cutter seat, a fixed cutter fixedly arranged on the cutter seat and a movable cutter driven by the actuator and matched with the fixed cutter for shearing, wherein the suction inlet is formed at the lower position of the shearing position of the fixed cutter and the movable cutter.
In order to achieve the above object, an embodiment of the present application further provides an air conveying structure of an automatic shearing apparatus, which includes a housing cover, an air conveying pipe is arranged inside the housing cover, the air conveying pipe includes an air suction section and a conveying section communicated with the air suction section, an air inlet communicated with the air suction section and the conveying section and an exhaust hole communicated with the conveying section are arranged on the housing cover, and a suction inlet is arranged at an end of the air suction section far away from the conveying section.
The embodiment of the application has the following beneficial effects: the air transmission pipe is hidden in the shell cover, so that the volume of the air transmission structure can be greatly reduced, and the air transmission structure is suitable for processing small pipe orifices of clothes and trousers of infants. The fixed knife is arranged in the fixed knife containing groove of the needle board seat, and the blade of the movable knife which is matched with the fixed knife for shearing can be lifted to be adjacent to the upper surface of the needle board seat, so that the sheared thread end is short, attractive and flat. The air suction section is designed as a passive air suction channel, so that the arrangement cost of an air suction device can be saved, the air suction effect of the air suction section is achieved in an air blowing mode, and the air suction device is more economical and practical in the aspects of use efficiency and the like.
Drawings
Fig. 1 is a schematic diagram of the needle plate base and the respective constituent structures according to the embodiment of the present application.
Fig. 2 is an exploded view of an automated shearing device according to an embodiment of the present application.
Fig. 3 is a schematic perspective view of the gas transmission structure according to the embodiment of the present application.
FIG. 4 is a cross-sectional view of a gas delivery structure of an embodiment of the present application.
Fig. 5 is a schematic view of an assembly of the automatic cutting device according to the embodiment of the present application applied to a sewing machine.
Fig. 6 is a combination view of the automated cutting apparatus according to the embodiment of the present application applied to another view of the sewing machine.
Fig. 7 to 13 are sectional views (one) to (seven) showing the use states of the automatic cutting device according to the embodiment of the present application applied to a sewing machine.
Description of reference numerals:
10-a gas transmission structure;
11-a housing cover;
12-a gas transmission pipe;
121-a suction section;
1211-suction inlet;
122-a conveying section;
13-an air intake;
14-a vent hole;
15-reinforcing ribs;
16-a positioning rib;
17-a linker;
18-a carrier seat;
20-an actuator;
21-a transmission shaft;
22-a drive gear;
30-a cutter structure;
31-a tool apron;
311-blade receiving groove;
32-a stationary knife;
33-a movable knife;
331-a shaft;
332-a blade;
34-sector gear;
35-shaft seat;
40-needle board seat;
41-fixed cutter accommodating groove;
42-notch;
8-sewing machine;
81-arm;
82-a base;
83-air inlet pipe;
84-a wire arrangement pipe;
85-a pressing tool;
9-distributing;
91-chain suture;
92-sewing residual thread.
Detailed Description
The following description and technical contents of the embodiments of the present application are described with reference to the accompanying drawings, which, however, are provided for reference and illustration purposes only and are not intended to limit the embodiments of the present application.
Referring to fig. 1 to 4, an embodiment of the present application provides an automatic cutting device for sewing a residual thread, which mainly includes an air feeding structure 10, an actuator 20 and a cutter structure 30.
As shown in fig. 3 and 4, the air delivery structure 10 includes a housing cover 11, which is substantially U-shaped and has a three-dimensional structure, an air delivery pipe 12 is disposed inside the housing cover 11, the air delivery pipe 12 mainly includes an air suction section 121 and a conveying section 122 communicated with the air suction section 121, an air inlet 13 communicated with the air suction section 121 and the conveying section 122 and an air outlet 14 communicated with the conveying section 122 are disposed at two side edges of the housing cover 11, and an air inlet 1211 is disposed at an end of the air suction section 121 away from the conveying section 122.
The suction segment 121 is not formed by suction using a suction device, but is formed by blowing gas from the gas inlet 13, passing through the delivery segment 122, and then outputting the gas from the gas outlet 14, and in the process of flowing the gas, the gas in the suction segment 121 is carried away by the gas in the delivery segment 122, so that a passive suction channel is formed in the suction segment 121.
Further, the housing cover 11 and the air pipe 12 may be integrally formed, and a plurality of reinforcing ribs 15 and a plurality of positioning ribs 16 are provided inside the housing cover 11 and on the outer periphery of the air pipe 12. In addition, a contact 17 is formed at a position corresponding to the exhaust hole 14, and the contact 17 is formed at a side of the case cover 11. A load bearing seat 18 is provided at the bottom of the case cover 11.
The actuator 20 can be fixed in the housing cover 11, and can be an electric cylinder, a pneumatic cylinder or other actuating elements, in this embodiment, a pneumatic cylinder, which is locked on the bearing seat 18 by a screw fastening element such as a screw, the actuator 20 has a transmission shaft 21 and a driving gear 22 fixed on the transmission shaft 21.
The cutter structure 30 is disposed above the actuator 20 and formed in the inner space of the housing cover 11, and the cutter structure 30 mainly includes a cutter holder 31, a fixed cutter 32, a movable cutter 33, a sector gear 34 and a shaft seat 35; the tool holder 31 is installed between the positioning ribs 16 and locked above the shaft seat 35 by a screw fastener, and a blade receiving slot 311 is formed at the upper portion of the tool holder 31.
The fixed knife 32 is locked on the knife holder 31 through a screw element, the shaft seat 35 is locked on the actuator 20 through a screw element, the movable knife 33 has a shaft 331 and a blade 332 connected to the end of the shaft 331, the shaft 331 sequentially penetrates through the knife holder 31 and the sector gear 34 and is rotatably pivoted with the shaft seat 35, the sector gear 34 can be in meshed transmission with the driving gear 22, the blade 332 can be accommodated in the blade accommodating groove 311 and formed below the fixed knife 32, and after being transmitted by the driving gear 22 through the sector gear 34, the shaft 331 is rotated to drive the blade 332 to be matched with the fixed knife 32 for shearing.
Among them, the suction port 1211 of the suction section 121 may be formed at a lower position than the cutting position of the blades 332 of the stationary blade 32 and the movable blade.
Further, the automatic cutting device for sewing residual thread according to the embodiment of the present application further includes a needle plate seat 40 that can be fastened to the cutter seat 31 through a screw fastening element and covers the upper portion of the housing cover 11, the needle plate seat 40 is provided with a fixed blade receiving slot 41 for receiving the fixed blade 32 and a notch 42 communicating with the fixed blade receiving slot 41, and the notch 42 can be formed at a position right above the suction port 1211.
Referring to fig. 5 and 6, the automatic cutting device for sewing a residual thread according to the embodiment of the present application may be installed on a sewing machine 8, the sewing machine 8 has a machine arm 81 and a base 82, the automatic cutting device may be installed at a front position of the base 82 and is communicated with the air inlet 13 through an air inlet pipe 83, a thread discharging pipe 84 is connected to the joint 17 and is communicated with the air outlet 14, and the sewing machine 8 further includes a presser 85 and other related devices.
Referring to fig. 7 to 10, in operation, the cloth 9 is placed on the needle plate base 40, the cloth 9 has the chain stitch line 91 and the sewing residual line 92 extending from the chain stitch line 91 and protruding to the outside of the cloth 9, the sewing residual line 92 is aligned with the notch 42 (as shown in fig. 7), after the operating pedal is stepped on (not shown), the presser 85 moves downward and presses the cloth 9 (as shown in fig. 8), at this time, the actuator 20 is not actuated, the driving gear 22 and the sector gear 34 maintain the meshing state, and the blade 332 of the movable knife 33 is located in the blade receiving slot 311 and is disposed at a side away from the fixed knife 32 (as shown in fig. 9 and 10).
As shown in fig. 11 to 13, the air is supplied to the air inlet 13 through the air inlet pipe 83, and after the air flows through the air supply section 122, a passive air suction channel is formed inside the air suction section 121, so that the sewing residual thread 92 is sucked into the air suction section 121 from the suction opening 1211; the driving gear 22 of the actuator 20 drives the sector gear 34 to rotate, so that the shaft 331 of the movable knife 33 rotates along with the sector gear 34, and drives the blade 332 and the fixed knife 32 to cut the residual sewing thread 92 together, the cut residual sewing thread 92 is discharged from the conveying section 122 along the thread discharging pipe 84, the uncut residual sewing thread 92 drags the cloth 9 toward the needle plate and the needle bar through the presser 85, at this time, the uncut residual sewing thread 92 is folded under the cloth 9, and finally the uncut residual sewing thread 92 is fixed under the cloth 9 through the sewing.
In summary, the automatic cutting device for the sewing residual thread and the air delivery structure thereof in the embodiment of the present application can achieve the expected use purpose, solve the problems in the prior art, completely meet the requirements of the patent application due to the novelty and the advancement, and provide applications according to the patent laws, please review and grant the patent application to ensure the rights of the inventor.
Claims (9)
1. An automated trimming apparatus for sewing a residual thread, comprising:
the air conveying structure comprises a shell cover, wherein an air conveying pipe is arranged in the shell cover, the air conveying pipe comprises an air suction section and a conveying section communicated with the air suction section, an air inlet communicated with the air suction section and the conveying section and an air exhaust communicated with the conveying section are formed in the shell cover, and a suction inlet is formed in the end part, far away from the conveying section, of the air suction section;
an actuator fixed in the shell cover; and
and the cutter structure is arranged above the actuator and comprises a cutter holder, a fixed cutter fixedly arranged on the cutter holder and a movable cutter which is driven by the actuator and is matched with the fixed cutter for shearing, wherein the suction inlet is formed at the position below the shearing position of the fixed cutter and the movable cutter.
2. The automatic trimming apparatus for sewing waste thread according to claim 1, wherein the housing cover is provided with a carrying seat, the actuator is fixed on the carrying seat, the actuator has a transmission shaft and a driving gear fixedly connected to the transmission shaft, the cutting structure further comprises a sector gear, and the sector gear is connected to the movable knife and is in mesh transmission with the driving gear.
3. The automatic trimming apparatus for sewing remnant wire according to claim 2, wherein the cutter structure further comprises a shaft seat fixed to the actuator, a plurality of positioning ribs are provided inside the housing cover and on the outer periphery of the air duct, and the cutter seat is erected between the positioning ribs and fixed above the shaft seat.
4. The automatic cutting device for the sewing residual thread according to claim 3, characterized in that the movable knife has a shaft and a blade connected to the shaft, the shaft sequentially penetrates through the knife holder and the sector gear and rotatably pivots the shaft holder, the knife holder is provided with a blade receiving groove, and the blade is received in the blade receiving groove.
5. The automatic trimming apparatus for sewing remnant lines of claim 1, further comprising a needle board holder fixed to the cutter holder and covering above the case cover.
6. The automatic trimming device for sewing remnant thread of claim 5, wherein the needle bed is provided with a stationary blade receiving groove for receiving the stationary blade and a notch communicating with the stationary blade receiving groove, the notch being formed at a position above the suction port.
7. The automated trimming apparatus for sewing remnant thread according to claim 1, wherein the suction section is a passive suction passage.
8. The automatic trimming device for sewing remnant lines according to claim 1, wherein the housing cover and the gas pipe are integrally formed, and a plurality of reinforcing ribs and a plurality of positioning ribs are provided inside the housing cover and on the outer periphery of the gas pipe.
9. The automatic trimming device for sewing remnant lines of claim 1, wherein a tab is formed at a position corresponding to the air discharge hole, the tab being formed at a side edge of the case cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010249436.XA CN113493966B (en) | 2020-04-01 | 2020-04-01 | Automatic shearing device for sewing residual thread and gas transmission structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010249436.XA CN113493966B (en) | 2020-04-01 | 2020-04-01 | Automatic shearing device for sewing residual thread and gas transmission structure thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113493966A CN113493966A (en) | 2021-10-12 |
| CN113493966B true CN113493966B (en) | 2023-03-14 |
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ID=77994054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010249436.XA Active CN113493966B (en) | 2020-04-01 | 2020-04-01 | Automatic shearing device for sewing residual thread and gas transmission structure thereof |
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| Country | Link |
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| CN (1) | CN113493966B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3142396U (en) * | 2008-03-31 | 2008-06-12 | 啓翔股▲ふん▼有限公司 | Sewing machine cutting equipment |
| TW201837258A (en) * | 2017-03-31 | 2018-10-16 | 星銳縫紉機股份有限公司 | Thread cutter of sewing machine with movable thread suction pipe having a movable thread suction pipe capable of absorbing the cut portion of the thread |
| CN208430307U (en) * | 2018-07-14 | 2019-01-25 | 玉环奕友电子有限公司 | A kind of collection device that cuts waste material on sewing machine |
| CN209243340U (en) * | 2018-12-07 | 2019-08-13 | 浙江美机缝纫机有限公司 | A kind of trimming auxiliary air blowing piece of sewing machine |
| CN211972670U (en) * | 2020-04-01 | 2020-11-20 | 高林股份有限公司 | Automatic shearing device for sewing residual thread and gas transmission structure thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206268144U (en) * | 2016-11-21 | 2017-06-20 | 深圳市燕麦科技股份有限公司 | A kind of vacuum generator and vacuum desorption system for automation equipment |
-
2020
- 2020-04-01 CN CN202010249436.XA patent/CN113493966B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3142396U (en) * | 2008-03-31 | 2008-06-12 | 啓翔股▲ふん▼有限公司 | Sewing machine cutting equipment |
| TW201837258A (en) * | 2017-03-31 | 2018-10-16 | 星銳縫紉機股份有限公司 | Thread cutter of sewing machine with movable thread suction pipe having a movable thread suction pipe capable of absorbing the cut portion of the thread |
| CN208430307U (en) * | 2018-07-14 | 2019-01-25 | 玉环奕友电子有限公司 | A kind of collection device that cuts waste material on sewing machine |
| CN209243340U (en) * | 2018-12-07 | 2019-08-13 | 浙江美机缝纫机有限公司 | A kind of trimming auxiliary air blowing piece of sewing machine |
| CN211972670U (en) * | 2020-04-01 | 2020-11-20 | 高林股份有限公司 | Automatic shearing device for sewing residual thread and gas transmission structure thereof |
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| Publication number | Publication date |
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| CN113493966A (en) | 2021-10-12 |
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