CN107829229B

CN107829229B - Needle seat device capable of preventing needle from being broken for quilt sewing machine

Info

Publication number: CN107829229B
Application number: CN201711045906.5A
Authority: CN
Inventors: 董兴武
Original assignee: Xiao County Anhui Province Hui Xing Machinery Manufacturing Co Ltd
Current assignee: Xiao County Anhui Province Hui Xing Machinery Manufacturing Co Ltd
Priority date: 2017-10-31
Filing date: 2017-10-31
Publication date: 2020-02-11
Anticipated expiration: 2037-10-31
Also published as: CN107829229A

Abstract

The invention relates to the technical field of quilt sewing machine equipment, in particular to a needle seat device capable of preventing a needle from being broken for a quilt sewing machine, which comprises a needle rod seat and a needle cylinder, wherein the needle cylinder is fixed on the lower surface of the needle rod seat, a limiting ring is fixed on the inner wall of the needle cylinder, an upper cavity is arranged above the limiting ring, a lower cavity is arranged below the limiting ring, a connecting rod is sleeved in the needle cylinder, a damping spring is wound on the side wall in the middle of the connecting rod, a needle head seat is arranged at the lower end of the connecting rod, a protective cover is sleeved on the outer wall of the needle head seat, a metal needle is fixed at the bottom of the needle head seat, and a rubber sleeve is sleeved; a presser foot sleeve matched with the fixing bolt is sleeved on the lower side wall of the needle cylinder, a presser foot is fixed on the side wall of the presser foot sleeve, and a through hole is formed in the upper surface of a presser foot bottom rod; the invention solves the problem that the metal needle is easy to break when swaying left and right in the sewing process; the problem that the hands of an operator are easily accidentally injured by the metal needle is also solved.

Description

Needle seat device capable of preventing needle from being broken for quilt sewing machine

Technical Field

The invention relates to the technical field of quilt sewing machine equipment, in particular to a needle seat device capable of preventing a needle from being broken for a quilt sewing machine.

Background

Quilt sewing machines are one kind of quilting machines, and are textile machines used for sewing linear patterns on mattresses, bedspreads, quilts and the like. The former of quilt sewing machines is quilting machines, which are similar to but opposite to the principles of sewing machines. The quilt sewing machine includes ascending (descending) supports of equal length, which are independently configured to move up and down by independent operating levers; a plurality of needles mounted on the ascending (descending) support, a guide member mounted under the ascending (descending) support, the guide member being provided with guide holes through which the needle support carrying the needles is fixed to the ascending (descending) support. Each support rod is provided with a pressure foot and is elastically supported by a spring. Alternatively, the quilting machine is configured such that a plurality of hooks mounted on the elongated longitudinal front and rear hook bases are respectively held in place by hook supports. In this case, by adjusting the position of the rear hook base, the rear hook holder can be adjusted at the same time. Also, a longitudinal bar is installed above the front side of the needle so as to be rotated in a forward (backward) direction by a certain angle according to the operation of the cam guide. The longitudinal bar is provided with the same number of thread take-up levers as the needle to allow the needle to accommodate the sewed thread passing through each thread take-up lever to avoid any thread breakage.

However, the prior art still has a plurality of problems, firstly, the metal needle is easy to break when swaying left and right in the sewing process; secondly, the hands of the operator are easily accidentally injured by the metal needle; finally, the needle is not easily replaced.

Disclosure of Invention

Solves the technical problem

Aiming at the defects in the prior art, the invention provides the needle seat device which is used for the quilt sewing machine and can prevent the broken needle, and the problem that the metal needle is easy to break when left and right swaying in the sewing process in the prior art can be effectively solved; the problem that the hands of an operator are easily accidentally injured by the metal needle is also solved; meanwhile, the problem that the needle head is not easy to replace is solved.

Technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

a needle seat device for preventing a needle from being broken of a quilt sewing machine comprises a needle rod seat and a needle cylinder, wherein the needle cylinder is fixed on the lower surface of the needle rod seat, a limiting ring is fixed on the inner wall of the needle cylinder, an upper cavity is arranged above the limiting ring, a lower cavity is arranged below the limiting ring, a connecting rod is sleeved inside the needle cylinder, a damping spring is wound on the side wall of the middle part of the connecting rod, a needle seat is arranged at the lower end of the connecting rod, a protective cover is sleeved on the outer wall of the needle seat, a metal needle is fixed at the bottom of the needle seat, and a rubber sleeve is sleeved on the upper side wall of the metal needle; the lower side wall of the needle cylinder is sleeved with a presser foot sleeve matched with the fixing bolt, a presser foot is fixed on the side wall of the presser foot sleeve, and a through hole is formed in the upper surface of the presser foot bottom rod.

Furthermore, the connecting rod includes last disc, first spliced pole, lower disc and second spliced pole, first spliced pole is fixed the lower surface of going up the disc, the disc is fixed down the lower surface of first spliced pole, the second spliced pole is fixed disc lower surface down.

Furthermore, the second connecting column is in threaded connection with the needle base.

Furthermore, the inner diameter of the through hole is larger than the diameter of the metal needle, and the metal needle and the central axis of the through hole are positioned on the same vertical line.

Furthermore, the inner diameter of the upper pipe orifice of the protective cover is smaller than the outer diameter of the lower cylinder of the second connecting column.

Furthermore, the diameters of the upper disc and the lower disc are larger than the inner diameter of the limiting ring.

Advantageous effects

Compared with the known public technology, the technical scheme provided by the invention has the following advantages

Has the advantages that:

1. the invention can prevent the metal needle from being broken due to the left-right shaking in the sewing process by increasing the design of the rubber sleeve.

2. The invention can prevent the accident caused by the mistaken collision of the hand on the metal needle by adding the design of the protective cover.

3. The invention can play the roles of shock absorption and noise reduction in the sewing process by increasing the design of the shock absorption spring and the connecting rod.

4. The invention achieves the effect of replacing the needle head by adding the design of the second connecting column and the needle head seat.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description of the embodiments or the prior art will be required; the drawings to be used are briefly described. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a front view of the present invention.

The reference numerals in the drawings denote: 1-presser foot; 2-rubber sleeve; 3-pressing the foot sleeve; 4-a lower chamber; 5-a connecting rod; 501-an upper disc; 502-first connecting post; 503-lower disc; 504-a second connecting column; 6-needle bar seat; 7-a needle cylinder; 8-a damping spring; 9-fixing the bolt; 10-needle seat; 11-a protective cover; 12-a metal needle; 13-a through hole; 14-an upper chamber; 15-a limit ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Examples

The needle seat device comprises a needle rod seat 6 and a needle cylinder 7, wherein the needle cylinder 7 is fixed on the lower surface of the needle rod seat 6, a limiting ring 15 is fixed on the inner wall of the needle cylinder 7, an upper cavity 14 is arranged above the limiting ring 15, a lower cavity 4 is arranged below the limiting ring 15, a connecting rod 5 is sleeved inside the needle cylinder 7, a damping spring 8 is wound on the side wall of the middle part of the connecting rod 5, a needle head seat 10 is arranged at the lower end of the connecting rod 5, a protective cover 11 is sleeved on the outer wall of the needle head seat 10, a metal needle 12 is fixed at the bottom of the needle head seat 10, and a rubber sleeve 2 is sleeved on the upper side wall of the metal needle 12; the lower side wall of the needle cylinder 7 is sleeved with a presser foot sleeve 3 matched with the fixing bolt 9, the side wall of the presser foot sleeve 3 is fixed with a presser foot 1, and the upper surface of a bottom rod of the presser foot 1 is provided with a through hole 13; the connecting rod 5 comprises an upper disc 501, a first connecting column 502, a lower disc 503 and a second connecting column 504, wherein the first connecting column 502 is fixed on the lower surface of the upper disc 501, the lower disc 503 is fixed on the lower surface of the first connecting column 502, and the second connecting column 504 is fixed on the lower surface of the lower disc 503; second connecting post 504 is in threaded connection with needle mount 10; the inner diameter of the through hole 13 is larger than the diameter of the metal needle 12, and the central axes of the metal needle 12 and the through hole 13 are positioned on the same vertical line; the inner diameter of the upper pipe orifice of the protective cover 11 is smaller than the outer diameter of the lower cylinder of the second connecting column 504; the diameters of the upper disc 501 and the lower disc 503 are larger than the inner diameter of the limiting ring 15.

When the sewing machine works, the presser foot sleeve 3 is fixed on the lower side wall of the needle cylinder 7 by the fixing bolt 9, the height of the presser foot 1 from a quilt is adjusted, then the quilt sewing machine is powered on, the whole needle seat device moves downwards, when the presser foot 1 contacts the quilt, the needle rod seat 6 pushes the metal needle 14 to move downwards through the needle cylinder 7 and the connecting rod 5, the metal needle 12 penetrates through a through hole 13 formed in the surface of the presser foot 1 to sew the quilt, the damping spring 8 is wound on the side wall of the middle part of the connecting rod 5 to be in a compressed state, the upper disc 501 and the limiting ring 15 can limit the connecting rod 5 to continue to move upwards, and after one sewing action is completed, the connecting rod returns to an initial state under the elastic action of the damping spring 8, so that the effects of damping and; the outer wall of the needle head seat 10 is sleeved with the protective cover 11, the needle head seat can move up and down along the outer walls of the needle head seat 10 and the second connecting column 504 in the sewing process, the accident caused by the mistaken collision of a hand on the metal needle 12 can be prevented, the upper side wall of the metal needle 12 is sleeved with the rubber sleeve 2, and the phenomenon that the metal needle 12 is broken due to the left-right shaking in the sewing process can be prevented; second attachment post 504 is threadably connected to needle mount 10 and therefore also to a replacement needle.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A needle seat device for a quilt sewing machine capable of preventing needle breakage comprises a needle rod seat (6) and a needle cylinder (7), and is characterized in that the needle cylinder (7) is fixed on the lower surface of the needle rod seat (6), a limiting ring (15) is fixed on the inner wall of the needle cylinder (7), an upper cavity (14) is arranged above the limiting ring (15), a lower cavity (4) is arranged below the limiting ring (15), a connecting rod (5) is sleeved inside the needle cylinder (7), a damping spring (8) is wound on the side wall of the middle part of the connecting rod (5), a needle seat (10) is arranged at the lower end of the connecting rod (5), a protective cover (11) is sleeved on the outer wall of the needle seat (10), a metal needle (12) is fixed at the bottom of the needle seat (10), and a rubber sleeve (2) is sleeved on the upper side wall of the metal needle (12); the lower side wall of the needle cylinder (7) is sleeved with a presser foot sleeve (3) matched with the fixing bolt (9), a presser foot (1) is fixed on the side wall of the presser foot sleeve (3), and a through hole (13) is formed in the upper surface of a bottom rod of the presser foot (1).

2. A needle holder device for a breakage-proof needle of a quilt sewing machine according to claim 1, wherein said connecting rod (5) comprises an upper disc (501), a first connecting column (502), a lower disc (503), and a second connecting column (504), said first connecting column (502) being fixed to a lower surface of said upper disc (501), said lower disc (503) being fixed to a lower surface of said first connecting column (502), said second connecting column (504) being fixed to a lower surface of said lower disc (503).

3. A needle holder device for a quilt sewing machine anti-breaking needle according to claim 2, characterized in that said second attachment post (504) is screwed with said needle holder (10).

4. A needle holder device for a quilt sewing machine breakage-proof needle according to claim 1, characterized in that the inside diameter of the through hole (13) is larger than the diameter of the metal needle (12), and the metal needle (12) and the central axis of the through hole (13) are on the same vertical line.

5. A needle holder device for a quilt sewing machine breakage-proof needle according to claim 2, characterized in that the upper orifice of the shield (11) has an inner diameter smaller than the outer diameter of the lower cylinder of the second connecting post (504).

6. A needle holder device for a quilt sewing machine breakage-proof needle according to claim 2, characterized in that the diameter of the upper disc (501) and the diameter of the lower disc (503) are both larger than the inner diameter of the retainer ring (15).