CN213772496U

CN213772496U - Threading device and sewing machine with same

Info

Publication number: CN213772496U
Application number: CN202022713272.XU
Authority: CN
Inventors: 陈海发; 王鲜; 张龙宝; 陈佳力
Original assignee: Zhejiang Zoje Sewing Machine Co Ltd
Current assignee: Zhejiang Zoje Sewing Machine Co Ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-07-23
Anticipated expiration: 2030-11-19

Abstract

The utility model provides a threading device and have its sewing machine, wherein, threading device includes: the needle rod assembly comprises a needle rod, a threading hole and a wire outlet are formed in the needle rod, and the threading hole is communicated with the wire outlet; the subassembly of breathing in, movably setting is in the side of needle bar subassembly, the subassembly of breathing in includes guide part and negative pressure generation part, be provided with guide channel in the guide part, negative pressure generation part and guide channel intercommunication, guide channel passes through outlet and through the through wires hole intercommunication, in order to utilize the negative pressure in the guide channel to inhale the sewing thread to guide channel in and derive the sewing thread through guide channel, in order to solve the problem of sewing machine's among the prior art threading inefficiency.

Description

Threading device and sewing machine with same

Technical Field

The utility model relates to a sewing machine field particularly, relates to a threading device and have its sewing machine.

Background

At present, the thread of the rotary needle bar sewing machine is passed through the inside of the hollow needle bar, and the thread is difficult to thread without an auxiliary tool because the needle bar is long and the thread is soft.

In the prior art, one end of a suture is fixed on a metal wire through a tool such as a metal wire, the metal wire is inserted into a needle rod, the suture is penetrated out from a lower end hole of the needle rod, and then the metal wire is pulled out, so that the suture material is easily scratched, and the threading efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a threading device and have its sewing machine to solve the problem of sewing machine's among the prior art threading inefficiency.

In order to achieve the above object, according to an aspect of the present invention, there is provided a threading device including: the needle rod assembly comprises a needle rod, a threading hole and a wire outlet are formed in the needle rod, and the threading hole is communicated with the wire outlet; the subassembly of breathing in, movably setting is in the side of needle bar subassembly, and the subassembly of breathing in includes guide part and negative pressure generation part, is provided with guide channel in the guide part, and negative pressure generation part and guide channel intercommunication, guide channel pass through outlet and through wires hole intercommunication to utilize the negative pressure in the guide channel to inhale the sewing thread to guide channel in and derive the sewing thread through guide channel.

Further, the getter module further comprises: and the first end of the insertion pipe is inserted into the threading hole through the wire outlet, and the second end of the insertion pipe is communicated with the guide channel, so that the sewing thread is sucked into the guide channel after passing through the insertion pipe.

Further, the guide member is a guide tube, and the guide tube includes: the first guide pipe is internally provided with a first guide channel, and the insertion pipe is communicated with the first guide channel; the sewing machine comprises a first guide pipe, a first end of the first guide pipe is communicated with a negative pressure generating component, a second end of the first guide pipe is communicated with a first guide channel, and sewing threads are sucked into the first guide channel and led out from a third end of the first guide pipe.

Further, a communication opening is formed in the second guide pipe, and the second guide channel is communicated with the first guide channel through the communication opening.

Further, a preset included angle is formed between the extending direction of the first guide channel and the extending direction of the second guide channel.

Furthermore, a blocking end face is arranged in the threading hole, the blocking end face is an inclined face, and the suction inlet of the insertion tube is opposite to the blocking end face.

Further, at least a part of the insertion tube is a hose to insert the hose into the threading hole by controlling deformation of the hose or to withdraw the hose from the threading hole.

Further, the negative pressure generating part includes: the first end of the air inlet pipe is communicated with an air source; and the first end of the air outlet pipe is communicated with the air inlet pipe, and the second end of the air outlet pipe is communicated with the guide channel so as to convey air flow into the guide channel through the air outlet pipe.

Further, the negative pressure generating part further includes: and the air inlet pipe is communicated with the air outlet pipe through the control valve, so that the passage or the open circuit between the air inlet pipe and the air outlet pipe is controlled through the control valve.

According to the utility model discloses an on the other hand provides a sewing machine, including organism and threading device, threading device's at least part sets up on the organism, and threading device is foretell threading device.

By applying the technical scheme of the utility model, the threading device comprises a needle bar component and an air suction component, the needle bar component comprises a needle bar, a threading hole and a wire outlet are arranged on the needle bar, and the threading hole is communicated with the wire outlet; the subassembly of breathing in movably sets up in side of needle bar subassembly, and the subassembly of breathing in includes guide part and negative pressure generation part, is provided with guide channel in the guide part, and negative pressure generation part and guide channel intercommunication, guide channel pass through outlet and through wires hole intercommunication to utilize the negative pressure in the guide channel to inhale the sewing thread to guide channel in and derive the sewing thread through guide channel. Set up like this and can utilize the negative pressure directly to inhale the sewing thread to the outlet from the inlet of the needle bar upper end to derive the sewing thread through setting up the guide way, need not manual operation, and can place the optional position with the subassembly of breathing in when need not the threading, set up the threading efficiency that makes things convenient for more and improved sewing machine.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of a threading device according to the invention; and

fig. 2 shows a partially enlarged view of the threading device according to fig. 1.

Wherein the figures include the following reference numerals:

1. a needle bar assembly; 10. a needle bar; 11. threading holes; 12. an outlet; 2. a getter assembly; 20. a guide member; 21. a negative pressure generating member; 22. a guide channel; 23. an insertion tube; 201. a first guide tube; 220. a first guide channel; 202. a second guide tube; 221. a second guide channel; 2020. a communication port; 110. a blocking end face; 210. an air inlet pipe; 211. an air outlet pipe; 212. a control valve; 100. sewing thread.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The utility model provides a threading device please refer to fig. 1 and fig. 2, include: the needle bar component 1 comprises a needle bar 10, the needle bar 10 is provided with a threading hole 11 and a line outlet 12, and the threading hole 11 is communicated with the line outlet 12; the suction assembly 2 is movably arranged on the side of the needle bar assembly 1, the suction assembly 2 comprises a guide part 20 and a negative pressure generating part 21, a guide channel 22 is arranged in the guide part 20, the negative pressure generating part 21 is communicated with the guide channel 22, and the guide channel 22 is communicated with the threading hole 11 through the thread outlet 12 so as to suck the sewing thread into the guide channel 22 by using the negative pressure in the guide channel 22 and guide the sewing thread out through the guide channel 22.

According to the utility model, the threading device comprises a needle bar component 1 and an air suction component 2, wherein the needle bar component 1 comprises a needle bar 10, the needle bar 10 is provided with a threading hole 11 and a wire outlet 12, and the threading hole 11 is communicated with the wire outlet 12; the suction assembly 2 is movably arranged on the side of the needle bar assembly 1, the suction assembly 2 comprises a guide part 20 and a negative pressure generating part 21, a guide channel 22 is arranged in the guide part 20, the negative pressure generating part 21 is communicated with the guide channel 22, and the guide channel 22 is communicated with the threading hole 11 through the thread outlet 12 so as to suck the sewing thread into the guide channel 22 by using the negative pressure in the guide channel 22 and guide the sewing thread out through the guide channel 22. The arrangement can directly suck the sewing thread 100 into the thread outlet 12 from the thread inlet at the upper end of the needle rod 10 by utilizing negative pressure, the sewing thread 100 is led out by arranging the guide channel 22, manual operation is not needed, the suction assembly can be placed at any position when threading is not needed, and the arrangement is more convenient and the threading efficiency of the sewing machine is improved.

In a specific implementation, the aspirating assembly 2 further comprises: and an insertion tube 23, a first end of the insertion tube 23 being inserted into the threading hole 11 through the thread outlet 12, and a second end of the insertion tube 23 being communicated with the guide passage 22 so that the sewing thread is sucked into the guide passage 22 after passing through the insertion tube 23. By providing the insertion tube 23, the insertion tube 23 can be inserted into or taken out of the threading hole 11 to be adapted to the working state of the sewing machine, and the sewing thread 100 can be guided into the guide passage 22 by guiding the sewing thread 100 through the insertion tube 23.

In the embodiment provided by the present invention, the guiding component 20 is a guiding tube, and the guiding tube includes: a first guide tube 201, a first guide channel 220 is arranged in the first guide tube 201, and the insertion tube 23 is communicated with the first guide channel 220; and a second guide channel 221 is formed in the second guide tube 202, a first end of the second guide channel 221 is communicated with the negative pressure generating part 21, a second end of the second guide channel 221 is communicated with the first guide channel 220, and the sewing thread passes through the first guide channel 220, is sucked into the second guide channel 221, and is led out from a third end of the second guide tube 202. Thus, during threading, air is blown into the second guide channel 221 through the air inlet of the second guide channel 221, a negative pressure is generated at the communication between the second guide channel 221 and the first guide channel 220, thereby drawing the sewing thread 100 into the outlet section of the second guide channel 221, and the outlet of the outlet section is arranged at the third end of the second guide tube 202.

Specifically, the second guide pipe 202 is provided with a communication port 2020, and the second guide passage 221 communicates with the first guide passage 220 through the communication port 2020. The guide pipe is similar to a three-way pipe, so that the sewing thread 100 is sucked into the communication port 2020 through the negative pressure effect, and then the sewing thread 100 is blown out of the guide channel under the blowing effect of the air flow.

Preferably, the extending direction of the first guide passage 220 and the extending direction of the second guide passage 221 have a predetermined angle therebetween.

In the specific implementation process, a blocking end face 110 is arranged in the threading hole 11, the blocking end face 110 is an inclined surface, and the suction port of the insertion tube 23 is arranged opposite to the blocking end face 110. The blocking end surface 110 is an end surface blocking the sewing thread 100, and the sewing thread is moved in the direction of the insertion tube 23 by the blocking action of the blocking end surface 110 against the sewing thread, thereby improving the threading efficiency.

In the embodiment provided by the utility model, at least part of insert tube 23 is the hose to deformation through the control hose inserts the hose in through wires hole 11, perhaps, makes the hose take out in through wires hole 11. The arrangement described above utilizes the technical characteristic that the hose has a deformation amount, and the suction of the sewing thread 100 can be realized at any position where air resistance is not generated in the hose without limiting the height of the negative pressure generating member 21.

Specifically, the negative pressure generating member 21 includes: the first end of the air inlet pipe 210 is used for being communicated with an air source; and a gas outlet pipe 211, a first end of the gas outlet pipe 211 being communicated with the gas inlet pipe 210, and a second end of the gas outlet pipe 211 being communicated with the guide passage 22 to deliver a gas flow into the guide passage 22 through the gas outlet pipe 211. Preferably, the air inlet pipe 210 and the air outlet pipe 211 are flexible pipes, so that the negative pressure generating component 21 can adapt to different working environments, and the relative position relationship between the negative pressure generating component 21 and the needle bar assembly 1 can be conveniently adjusted.

In order to facilitate the adjustment of the flow rate of the air flow between the air inlet pipe and the air outlet pipe and the on-off of the passage, the negative pressure generating part 21 further includes: and the control valve 212 is communicated between the air inlet pipe 210 and the air outlet pipe 211 through the control valve 212, so that the connection or disconnection between the air inlet pipe 210 and the air outlet pipe 211 is controlled through the control valve 212.

The utility model also provides a sewing machine, including organism and threading device, threading device's at least part sets up on the organism, and wherein, threading device is the threading device of above-mentioned embodiment.

It should be noted that the negative pressure generating member 21 in the present invention is not limited to the arrangement in the above embodiment, and any device capable of blowing air such as a vacuum cleaner or an air pump may be used as the negative pressure generating member.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A threading device, comprising:

the needle rod assembly (1) comprises a needle rod (10), a threading hole (11) and a line outlet (12) are formed in the needle rod (10), and the threading hole (11) is communicated with the line outlet (12);

inhale subassembly (2), movably set up the side of needle bar subassembly (1), inhale subassembly (2) including guide part (20) and negative pressure generation part (21), be provided with guide passage (22) in guide part (20), negative pressure generation part (21) with guide passage (22) intercommunication, guide passage (22) pass through outlet (12) with through wires hole (11) intercommunication, in order to utilize negative pressure in guide passage (22) is inhaled the sewing thread extremely in guide passage (22) and pass through guide passage (22) will the sewing thread is derived.

2. Threading device according to claim 1, characterized in that said aspiration assembly (2) further comprises:

and a first end of the insertion pipe (23) is inserted into the threading hole (11) through the thread outlet (12), and a second end of the insertion pipe (23) is communicated with the guide channel (22), so that the sewing thread is sucked into the guide channel (22) after passing through the insertion pipe (23).

3. Threading device according to claim 2, characterized in that the guide member (20) is a guide tube comprising:

a first guide tube (201), a first guide channel (220) is arranged in the first guide tube (201), and the insertion tube (23) is communicated with the first guide channel (220);

the sewing machine comprises a second guide pipe (202), wherein a second guide channel (221) is arranged on the second guide pipe (202), a first end of the second guide channel (221) is communicated with the negative pressure generating component (21), a second end of the second guide channel (221) is communicated with the first guide channel (220), and the sewing thread passes through the first guide channel (220), is sucked into the second guide channel (221), and is led out from a third end of the second guide pipe (202).

4. Threading device according to claim 3, characterized in that a communication opening (2020) is provided in the second guide tube (202), and that the second guide channel (221) communicates with the first guide channel (220) via the communication opening (2020).

5. Threading device according to claim 3, characterized in that the direction of extension of the first guide channel (220) and the direction of extension of the second guide channel (221) have a predetermined angle therebetween.

6. Threading device according to any of claims 2 to 5, characterized in that a blocking end surface (110) is arranged in the threading hole (11), the blocking end surface (110) being a bevel, the suction opening of the insertion tube (23) being arranged opposite the blocking end surface (110).

7. The threading device according to any one of claims 2 to 5, characterized in that at least a part of the insertion tube (23) is a hose to insert the hose into the threading hole (11) by controlling deformation of the hose or to withdraw the hose from the threading hole (11).

8. Threading device according to any of claims 1 to 5, characterized in that the negative pressure generating member (21) comprises:

the first end of the air inlet pipe (210) is used for being communicated with an air source;

the first end of the air outlet pipe (211) is communicated with the air inlet pipe (210), the second end of the air outlet pipe (211) is communicated with the guide channel (22), and air flow is conveyed into the guide channel (22) through the air outlet pipe (211).

9. Threading device according to claim 8, characterized in that said negative pressure generating member (21) further comprises:

and the air inlet pipe (210) is communicated with the air outlet pipe (211) through the control valve (212), so that the passage or the disconnection between the air inlet pipe (210) and the air outlet pipe (211) is controlled through the control valve (212).

10. A sewing machine comprising a machine body and a threading device, at least part of which is provided on the machine body, characterized in that the threading device is a threading device according to any one of claims 1 to 9.