CN110629383A

CN110629383A - Needle selector insert and needle selector using same

Info

Publication number: CN110629383A
Application number: CN201911017837.6A
Authority: CN
Inventors: 王高飞
Original assignee: Zhejiang Chentong Electronic Technology Co Ltd
Current assignee: Zhejiang Chentong Electronic Technology Co Ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2019-12-31
Anticipated expiration: 2039-10-24
Also published as: CN110629383B

Abstract

The invention relates to a needle selector insert and a needle selector using the same, and relates to the technical field of needle selectors. According to the needle selecting device, the path of the through hole in the insert body is pre-bent, so that the through holes formed after the insert body is die-cast to the main body part of the frame are on the same straight line, and the accuracy and the reliability of the needle selecting device are improved.

Description

Needle selector insert and needle selector using same

Technical Field

The invention relates to the technical field of needle selectors, in particular to a needle selector insert and a needle selector using the same.

Background

The needle selector is an accessory for selecting the jacquard needle in the needle cylinder so as to achieve the purpose of knitting patterns. The needle selector is driven to work according to the electric signal of the knitted fabric pattern combination, and the electromagnetic coil of the needle selector is electrified to change the current direction so as to lead the cutter head to swing left and right. The performance of the needle selection control device directly influences the accuracy and reliability of needle selection control.

Chinese utility model publication No. CN201883258U discloses a needle selector frame, which comprises a frame main body portion and a pair of seat portions fixedly held on the frame main body portion; the seat body parts are die-cast on the frame main body part, a plurality of round holes are arranged on each seat body part side by side, and a pair of second screw holes are arranged above the round holes. The seat body portion is die cast onto the frame body portion, and the round hole is used for installing the tool bit.

The technical scheme has the following defects: generally, when the seat body part is produced, the round holes are all arranged on the same straight line, but in the die-casting process, the temperature can rise, and due to thermal expansion and cold contraction, the seat body part above the through holes has larger deformation degree than that of the seat body parts of the straight lines where all the through holes are arranged, so that the through holes on the same straight line can be bent originally; after cooling, because seat body portion and frame main part relatively fixed, therefore almost synchronous shrinkage for the last through-hole that is the shape is the arc line form, leads to the tool bit of installation not in same horizontal plane, very big influence the accuracy nature.

Disclosure of Invention

The first purpose of the invention is to provide a needle selector, which enables through holes formed after an insert body is die-cast to a frame main body part to be on the same straight line, and improves the precision and the reliability of the needle selector.

The above object of the present invention is achieved by the following technical solutions:

the needle selector insert comprises an insert body, wherein the insert body is provided with a plurality of through holes, and connecting lines of all the through holes form a curved arc curve and are bent towards one side with more through holes.

Through adopting above-mentioned technical scheme, the die-casting in-process, the through-hole on the mold insert body after being heated can be on same straight line, and after the fixed connection, in the cooling process, the mold insert body cools off with the frame main part is synchronous for all through-holes still can keep on same straight line, thereby make the blade of later stage installation on same straight line, improved the accuracy and the reliability of selecting the needle ware.

Preferably, first fixing pieces are arranged at two ends of the insert body, and the height of each first fixing piece is lower than that of the insert body.

Through adopting above-mentioned technical scheme, can increase the area of contact between mold insert body and the frame main part to improve joint strength.

Preferably, a second fixing piece is arranged on one side of the insert body connected with the frame main body part.

Through adopting above-mentioned technical scheme, restricted the position on the long limit of mold insert body, formed three strong point with first stationary blade, improved the joint strength of mold insert body at the frame main part. And the probability of deformation due to temperature rise can be reduced in the working process.

A second object of the present invention is to provide a needle selector, which enables the needle selector using the frame to have a high head accuracy and a high quality.

a needle selector comprising a frame on which an insert as described in the first objective is mounted.

By adopting the technical scheme, the through holes in the insert on the formed frame are on the same straight line, and the needle selector using the frame has high tool bit precision and high quality.

Preferably, the frame is kept away from mold insert one end and is equipped with wiring mechanism, wiring mechanism is including installing circuit board, a plurality of solenoid that are located that the mold insert one end was kept away from to the frame just with the circuit board is connected, the circuit board is equipped with the wiring hole, the solenoid be provided with the wiring hole is pegged graft the complex and is drawn the needle.

Through adopting above-mentioned technical scheme, when installing the circuit board, only need pass the wiring hole of circuit board with the lead pin of solenoid, and the lead pin is not flexible, then soldering tin is fixed can, accomplish the assembly promptly, the operation is comparatively simple, and assembly efficiency is higher.

Preferably, a partition plate is arranged in the frame, the partition plate divides the frame into two mounting cavities, and a circular hole is formed in the partition plate;

the solenoid comprises a frame body positioned in a mounting cavity on one side of the partition plate, which is far away from the insert, a coil wound on the frame body, an end head arranged on the frame body, and a magnetic rod fixedly penetrating through the frame body, penetrating through the end head and being inserted into the round hole, wherein the guide needle is arranged on the end head and is connected with the coil;

and an elastic and insulating buffer sheet is clamped between the end head and the circuit board.

By adopting the technical scheme, the two ends of the solenoid are fixed by the guide pin and the partition plate, so that the stability of the solenoid is improved; the buffer sheet enables the end head and the circuit board to be always in a tightly pressed state, so that the probability of loosening of the coil is reduced, and the stability is improved.

Preferably, a fixing part connected with the partition plate is arranged in the frame and on the side away from the insert, the fixing part is provided with accommodating cavities which are coaxial with the round holes and correspond to the round holes in number, and the accommodating cavities are communicated with the round holes; a first magnetism isolating ring is arranged in the accommodating cavity, the coil and the frame body are clamped in the first magnetism isolating ring, and the magnetic rod penetrates through the accommodating cavity and is inserted into the round hole;

the end is connected support body one end integrated into one piece is provided with the locating piece the fixed part just is located the opening lateral wall that holds the chamber seted up with the locating piece joint complex the constant head tank, and work as the constant head tank with during the locating piece joint, the lead pin is aimed at the wiring hole.

Through adopting above-mentioned technical scheme, the setting that holds the chamber has restricted the position of support body, has reduced the probability that the support body rocked, and the setting of first magnetism isolating ring can separate the magnetic field that the coil produced, reduces the influence to adjacent coil to improve the independence and the stability of single coil. Meanwhile, the positioning groove is connected with the positioning block in a clamped mode to achieve circumferential positioning of the coil, so that the lead pins can be conveniently connected with wiring holes of the circuit board in an inserted mode, and installation is facilitated.

Preferably, a fixing plate is arranged in the frame and on one side away from the insert, the frame, the fixing plate and the partition plate form a cavity, the fixing plate is provided with limiting holes coaxial with the round holes and corresponding in number, the frame body penetrates through the limiting holes and abuts against the partition plate, the magnetic rod is inserted into the round holes, and a second magnetic isolating ring is sleeved outside the coil;

the end is connected support body one end integrated into one piece is provided with the locating piece the fixed plate deviate from mold insert one side seted up with the locating piece joint cooperation and with spacing hole intercommunication the constant head tank, and when the constant head tank with when the locating piece joint, the lead pin aims at the wiring hole.

By adopting the technical scheme, in the working process, the situation that a certain coil continuously works for a long time possibly exists, the heat generated by the coil is possibly more, and the temperature rises faster. Through the arrangement of the fixing plate, a cavity is formed, heat is uniformly distributed into the cavity and then conducted out of the cavity, so that the degree of deformation difference caused by overhigh local temperature of the frame can be reduced, and the stability of the frame is improved; the second magnetism isolating ring can separate the magnetic field generated by the coil, and the influence on the adjacent coil is reduced, so that the independence and the stability of the single coil are improved. Meanwhile, the positioning groove is connected with the positioning block in a clamped mode to achieve circumferential positioning of the coil, so that the lead pins can be conveniently connected with wiring holes of the circuit board in an inserted mode, and installation is facilitated.

Preferably, the end side wall is provided with a through accommodating groove along the length direction, and the coil wire of the coil is connected with the guide needle through the accommodating groove.

By adopting the technical scheme, the coil wire does not protrude out of the end head, so that the probability of the coil wire being cut off by the first magnetism isolating ring or the second magnetism isolating ring can be reduced.

Preferably, an anti-cutting ring is sleeved outside the coil and close to one end of the end head.

By adopting the technical scheme, as the solenoid is subsequently installed on the needle selecting frame, the coil wire which is just going out of the coil in the installation process can be scraped with the structure in the needle selecting frame, and the coil wire is easy to break. Through the setting of anti-cutting ring, can play the guard action to the coil silk, greatly reduced coil silk is by the probability that first magnetism isolating ring or second magnetism isolating ring cut off.

In conclusion, the beneficial technical effects of the invention are as follows:

1. the path of the through hole in the insert body is pre-bent, so that the through holes formed after the insert body is die-cast to the main body part of the frame are on the same straight line, and the accuracy and the reliability of the needle selector are improved;

2. the first fixing piece and the second fixing piece are arranged, so that the connection strength between the insert body and the frame main body part is improved;

3. the lead is changed into the guide pin, so that the lead is not easy to bend, and the lead is fast to pass through the circuit board, so that the operation is simple, and the assembly efficiency is high;

4. through the arrangement of the buffer sheet, the supporting block and the circuit board are always in a tightly pressed state, the probability of loosening of the solenoid is reduced, and the stability is improved;

5. the arrangement of the anti-cutting ring can play a role in protecting the coil wire, thereby greatly reducing the probability of the coil wire being cut off;

6. through the setting of fixed plate, frame, fixed plate, division board three vacuole formation evenly distribute the cavity with the heat, are gone out by the cavity conduction again to can reduce the local high temperature of frame and the degree that appears the deformation difference, improve the stability of frame.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure according to a first embodiment, showing a frame main body part, and omitting a weld seam on the frame main body part;

FIG. 2 is a schematic view of the three-dimensional structure of the second embodiment;

FIG. 3 is an exploded view of embodiment two (one);

FIG. 4 is an exploded view of the second embodiment;

FIG. 5 is an exploded view of the coil according to the second embodiment;

fig. 6 is a partial exploded view of the third embodiment.

Reference numerals: 1. an insert body; 11. a through hole; 12. a first fixing sheet; 13. a second fixing sheet; 2. a frame; 21. heat dissipation stripes; 22. a partition plate; 221. a circular hole; 23. a fixed part; 231. an accommodating chamber; 232. positioning a groove; 24. a notch; 25. a fixing plate; 251. a limiting hole; 31. a first magnetism isolating ring; 32. a second magnetism isolating ring; 41. a circuit board; 411. a wiring hole; 42. a coil; 421. a frame body; 422. a coil; 423. a tip; 424. a magnetic bar; 425. accommodating grooves; 426. a groove; 427. a support block; 428. positioning blocks; 43. leading a needle; 44. a buffer sheet; 45. a protective sleeve; 46. an anti-cutting ring.

Detailed Description

The present invention is described in further detail below with reference to the attached drawings.

The first embodiment is as follows:

referring to fig. 1, the needle selector insert comprises an insert body 1 in a rectangular shape, wherein a plurality of through holes 11 are formed in the insert body 1 at equal intervals along the length direction and close to a long side, eight through holes are adopted in the embodiment, and the central connecting lines of the eight through holes 11 form a bending arc which is bent towards the long side closest to the through holes 11.

The two end faces of the length direction of the insert body 1 are integrally formed with first fixing pieces 12 located on the same plane, the height of each first fixing piece 12 is lower than that of the insert body 1, the thickness of each first fixing piece 12 is smaller than that of the insert body 1, and one end, in the height direction of the insert body 1, of each first fixing piece 12 is flush with the insert body 1 and one end, close to the through hole 11, of each first fixing piece 12.

The middle position of the insert body 1, which is located on one side of the long edge connected with the frame main body, is provided with a second fixing piece 13 in an integrated manner, the width of one end, close to the insert body 1, of the second fixing piece 13 is smaller than the width of one end, far away from the insert body 1, of the second fixing piece 13, and the two sides of the second fixing piece 13 in the length direction of the insert body 1 are in a curve shape. The second fixing piece 13 is the same in thickness as the first fixing piece 12 and is located on the same plane, and meanwhile, the first fixing piece 12 and the second fixing piece 13 are located on one side, close to the inner wall of the frame main body, of the insert body 1 when the insert body is mounted on the frame main body.

The working principle of the embodiment is as follows:

through the pre-bending arrangement of the path of the through hole 11, the through holes 11 on the die-cast insert body 1 are on the same straight line.

The first fixing piece 12 and the second fixing piece 13 improve the connection strength and stability between the insert body 1 and the frame main body portion.

Example two:

a needle selector, refer to fig. 2 and fig. 3, comprising a frame 2 in a cuboid shape, the periphery of the frame 2 is hermetically arranged, an insert in the first embodiment is mounted on the frame 2, and a gap 24 is arranged on the periphery of the frame 2 far away from one end where the insert is mounted; the outer wall of the frame 2 is also integrally provided with heat dissipation stripes 21.

Referring to fig. 3 and 4, a partition plate 22 is integrally formed in the frame 2, the partition plate 22 divides the frame 2 into two mounting cavities, and the partition plate 22 is provided with eight circular holes 221; a fixing portion 23 integrally formed with the partition plate 22 and the frame 2 is arranged in the frame 2 and on the side away from the insert, and the fixing portion 23 and the frame 2 are also integrally formed. The fixing portion 23 is provided with accommodating cavities 231 which are coaxial with the round holes 221 and correspond in number, the accommodating cavities 231 are communicated with the round holes 221, and first magnetism isolating rings 31 are arranged in the accommodating cavities 231.

Referring to fig. 3, a wiring mechanism is arranged at one end of the frame 2 away from the insert, the wiring mechanism includes a circuit board 41 and eight wire packets 42, and the circuit board 41 is provided with eight pairs of wiring holes 411; the circuit board 41 is fixedly arranged at an opening at one end of the frame 2 far away from the insert through bolts, and covers the opening; the coil 42 is disposed in the frame 2 and has both ends connected to the wiring board 41 and the partition plate 22, respectively.

Referring to fig. 3 and 5, the coil package 42 includes a frame 421, a coil 422, a terminal 423, and a magnetic rod 424, the frame 421 is located in the first magnetic isolation ring 31, the coil 422 is formed by winding a coil wire, the coil 422 is sleeved on the frame 421 in a cylindrical shape, and the terminal 423 is integrally formed at one end of the frame 421. The end 423 is positioned between the fixing part 23 and the circuit board 41, and the gap 24 is communicated with the inside of the frame 2 between the fixing part 23 and the circuit board 41; two opposite side walls of the tip 423 are provided with through receiving grooves 425 along the length direction, and the connection between the groove bottom of the receiving grooves 425 and the frame 421 is in arc transition.

Referring to fig. 5, a groove 426 is formed between the two needles 43 at an end of the head 423 away from the frame 421, and the groove 426 is communicated with a side wall of the head 423. The magnetic rod 424 penetrates through the frame body 421 and the head 423 and is fixed with the head 423 and the frame body 421, one end of the magnetic rod 424 penetrates into the groove 426, and the other end of the magnetic rod 424 is inserted into the round hole 221 (see fig. 4).

Two leading pins 43 are fixedly arranged at intervals at one end of the end 423 away from the frame body 421, the two leading pins 43 are positioned at two sides of the opening of the groove 426, and the two leading pins 43 on the same end 423 are inserted into a pair of wiring holes 411 (shown in fig. 3) of the circuit board 41 and are fixed by soldering; the leading end of the coil wire is welded to the nearest needle 43 through one receiving groove 425, and the trailing end of the coil wire is welded to the other needle 43 through the other receiving groove 425.

In order to facilitate the insertion of the lead pins 43 into the wiring holes 411 of the circuit board 41, a positioning block 428 is integrally formed at one end of the end 423 connecting frame body 421, and a positioning groove 232 matched with the positioning block 428 in a clamping manner is formed in the fixing portion 23 and the side wall of the opening of the accommodating cavity 231, so that after the coil 42 is installed in the accommodating cavity 231, the positioning block 428 is clamped with the positioning groove 232, the coil 42 can be circumferentially positioned, the lead pins 43 are not required to be considered when the circuit board 41 is installed, and the lead pins 43 are aligned with the wiring holes 411, so that the installation is.

Referring to fig. 4 and 5, the head 423 is provided with a support block 427 integrally formed at a position away from one end of the frame 421 and beside each of the pins 43, and the height of the support block 427 is lower than that of the pins 43. In consideration of the abutting degree between the supporting block 427 and the circuit board 41, a buffer sheet 44 is interposed between the supporting block 427 and the circuit board 41, the buffer sheet 44 is a silicone sheet, and a part of the lead pins 43 passes through the buffer sheet 44 to position the buffer sheet 44.

A protective sleeve 45 is tightly sleeved outside the end 423, the protective sleeve 45 is also made of a silicon sheet, and the protective sleeve 45 encloses the accommodating groove 425, so that dust is prevented from entering the accommodating groove, and the coil wire in the accommodating groove 425 is protected. The anti-cutting ring 46 is further sleeved outside the coil 422 and at one end close to the end 423, the anti-cutting ring 46 is made of rubber, so that the coil wire can be protected, and the risk that the coil wire which just goes out of the coil 422 is cut by the first magnetism isolating ring 31 when the coil 42 is installed in the frame 2 is reduced.

The working principle of the embodiment is as follows:

during installation, the anti-cutting ring 46 is firstly sleeved on the coil 422 and is shifted to abut against the end 423, then the coil 42 is inserted into the accommodating cavity 231, the coil 42 penetrates through the first magnetism isolating ring 31, the magnetic rod 424 is inserted into the round hole 221, the positioning block 428 is clamped with the positioning groove 232, then the buffer sheet 44 is placed, then the circuit board 41 is installed, the lead pins 43 penetrate through the wiring holes 411 of the circuit board 41, meanwhile, the supporting blocks 427 abut against the buffer sheet 44, part of the lead pins 43 penetrate through the buffer sheet 44, soldering tin fixation is carried out, and finally, the circuit board 41 is screwed on the bolt and fixed on the frame 2.

Example three:

referring to fig. 4 and 6, a selector differs from the second embodiment in that: a fixing plate 25 is integrally formed in the frame 2 and on the side away from the insert, the frame 2, the fixing plate 25 and the partition plate 22 form a cavity, and the fixing plate 25 is provided with limiting holes 251 which are coaxial with the round holes 221 and have the number corresponding to that of the round holes 221; the frame 421 passes through the limiting hole 251 and abuts against the partition plate 22, the magnetic rod 424 is inserted into the circular hole 221, and the second magnetic isolating ring 32 is sleeved outside the coil 422. All the coils 422 are in the same cavity, so that the temperature can be diffused to the inner wall of the frame 2, and the phenomenon that the local temperature of the frame 2 is overhigh is reduced.

In order to facilitate the insertion of the lead pin 43 into the wiring hole 411 of the circuit board 41, a positioning block 428 is integrally formed at one end of the end 423 connecting frame body 421, and a positioning groove 232 matched with the positioning block 428 in a clamping manner and communicated with the limiting hole 251 is formed in one side of the fixing plate 25 away from the insert, so that after the coil 42 is installed in the accommodating cavity 231, the positioning block 428 is clamped with the positioning groove 232, the coil 42 can be circumferentially positioned, the lead pin 43 does not need to be considered when the circuit board 41 is installed, and the lead pin 43 is aligned with the wiring hole 411 or not, so that.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and it should be understood that a person having ordinary skill in the art can make several modifications and decorations without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a select needle ware mold insert, includes mold insert body (1), a plurality of through-holes (11), its characterized in that have been seted up in mold insert body (1): and connecting lines of all the through holes (11) form a curved curve and are bent towards one side with more through holes (11).

2. The selector insert of claim 1, wherein: the insert is characterized in that first fixing pieces (12) are arranged at two ends of the insert body (1), and the height of each first fixing piece (12) is lower than that of the insert body (1).

3. The selector insert of claim 1, wherein: and a second fixing piece (13) is arranged on one side of the insert body (1) connected with the frame main body part.

4. A selector comprising a frame (2), characterized in that: an insert according to any one of claims 1 to 3 is mounted on the frame (2).

5. The selector as claimed in claim 4, wherein: frame (2) are kept away from mold insert one end and are equipped with wiring mechanism, wiring mechanism is including installing circuit board (41), a plurality of being located that mold insert one end was kept away from in frame (2) and with solenoid (42) that circuit board (41) are connected, circuit board (41) are equipped with wiring hole (411), solenoid (42) be provided with wiring hole (411) grafting complex lead pin (43).

6. The selector as claimed in claim 5, wherein: a partition plate (22) is arranged in the frame (2), the partition plate (22) divides the frame (2) into two mounting cavities, and a round hole (221) is formed in the partition plate (22);

the coil (42) comprises a frame body (421) located in a mounting cavity on one side, away from the insert, of the separation plate (22), a coil (422) wound on the frame body (421), a head (423) arranged on the frame body (421), and a magnetic rod (424) fixedly penetrating through the frame body (421), penetrating through the head (423) and inserted into the round hole (221), wherein the guide pin (43) is arranged on the head (423) and connected with the coil (422);

an elastic and insulating buffer sheet (44) is clamped between the end head (423) and the circuit board (41).

7. The selector of claim 6 wherein: a fixing part (23) connected with the partition plate (22) is arranged in the frame (2) and on the side away from the insert, accommodating cavities (231) coaxial with the round holes (221) and corresponding in number are formed in the fixing part (23), and the accommodating cavities (231) are communicated with the round holes (221); a first magnetism isolating ring (31) is arranged in the accommodating cavity (231), the coil (422) and the frame body (421) are clamped in the first magnetism isolating ring (31), and the magnetic rod (424) penetrates through the accommodating cavity (231) to be inserted into the round hole (221);

end (423) are connected support body (421) one end integrated into one piece is provided with locating piece (428) fixed part (23) just are located hold the opening lateral wall of chamber (231) seted up with locating piece (428) joint complex constant head tank (232), and work as constant head tank (232) with during locating piece (428) joint, lead needle (43) are aimed at wiring hole (411).

8. The selector of claim 6 wherein: a fixing plate (25) is arranged in the frame (2) and on one side away from the insert, a cavity is formed by the frame (2), the fixing plate (25) and the partition plate (22), the fixing plate (25) is provided with limiting holes (251) which are coaxial with the round holes (221) and correspond to the round holes (221) in number, the frame body (421) penetrates through the limiting holes (251) and abuts against the partition plate (22), the magnetic rod (424) is inserted into the round holes (221), and a second magnetic isolating ring (32) is sleeved outside the coil (422);

the end head (423) is connected with one end of the frame body (421) and is provided with a positioning block (428) in an integrated forming mode, one side, away from the insert, of the fixing plate (25) is provided with a positioning groove (232) which is matched with the positioning block (428) in a clamping mode and communicated with the limiting hole (251), and when the positioning groove (232) is connected with the positioning block (428) in a clamping mode, the lead pin (43) is aligned to the wiring hole (411).

9. The selector of claim 6 wherein: the lateral wall of the end head (423) is provided with a through containing groove (425) along the length direction, and the coil wire of the coil (422) is connected with the guide needle (43) through the containing groove (425).

10. The selector of claim 6 wherein: an anti-cutting ring (46) is sleeved outside the coil (422) and close to one end of the end head (423).