WO2010006502A1

WO2010006502A1 - Knitting needle assembly for electromagnetic needle selector

Info

Publication number: WO2010006502A1
Application number: PCT/CN2009/000688
Authority: WO
Inventors: 冯加林; 巫友群
Original assignee: Feng Jialin; Wu Youqun
Priority date: 2008-07-16
Filing date: 2009-06-22
Publication date: 2010-01-21
Also published as: EP2327819A4; CN101314887B; CN101314887A; EP2327819A1

Abstract

A knitting needle assembly for electromagnetic needle selector of computer kitting machine. The assembly is formed with a jack (10) and a latch needle (30). The assembly has an electromagnetic absorbing surface (25) provided on an upside front end of a body (21) of the needle jack. A front needle butt (24) and a back needle butt (24) are orderly placed on a lower side of the body from a front position to a back position. The needle jack is imbedded and combined with the latch needle together by an upper scarf part (22). A lower location surface (27) is provided on the front end of the scarf part on a lower side of a needle jack body and located on a needle body of the latch needle.

Description

A needle combination suitable for electromagnetic needle selection

Technical field

The invention relates to a computerized flat knitting machine, in particular to a knitting needle assembly suitable for electromagnetic needle selection. Background technique

In the existing computerized knitting machine needle bed, there is a latch needle and a set of auxiliary needles in each of the needle slots, and the needles are controlled by the needle selector and the pressure plate to control the tongue needles for various knitting actions. The needle selector is used to select the needles that do not participate in the knitting. The current needle selectors are mechanical and electromagnetic. The mechanical needle selector presses the selector needle on the corresponding auxiliary needle through the selected needle, so that the needle of the needle of the needle that directly pushes the needle moves into the needle groove, thereby being unable to receive the knitting triangle. Pushing, the tongue can't be woven, so as to achieve the purpose of needle selection. The electromagnetic needle selector moves the needle jack by electromagnetic attraction, and sinks the needle on the needle groove to perform needle selection. For example, the tongue should be transferred, circled, etc. When the flower is woven, the pressure plate and the needle selection triangle should be matched.

Figure 15 shows the stylus in a computerized horizontal knitting machine manufactured by Stoll, Germany, and a set of auxiliary needles, using an electromagnetic needle selector. The auxiliary needle in the figure includes a needle jack 10, an intermediate piece 11, and a selector pin 12. The latch needle 9 is placed at the front end of the needle slot, and the rear end of the needle body has a hook portion 9a. The needle jack 10 is placed on the lower side of the rear portion of the latch needle 9. The base body is provided with a groove 10a, and the upper side of the base body is provided with a pin 10b, the tongue. The needle 9 is inserted into the groove 10a of the needle jack by its hook portion 9a to be connected to the needle jack. The intermediate piece 11 is placed on the upper side of the rear portion of the needle jack 10, and has two needles l la, l ib thereon. The selector piece is placed on the upper side of the end of the needle jack 10, and the upper side of the front end is provided with electromagnetic attraction. The joint surface 12a is provided with two needle turns 12b, 12c on the rear side of the electromagnetic attraction surface, and an elastic rod 12d on the lower side.

Before each row of knitting, the needle selection of all the needles on the needle bed is selected by the electromagnetic needle selector according to the knitting requirements. First, the needle pressing plate 274 (or 275) presses the rear needle 12c of the needle selecting piece 12 Next, the front end of the selection needle is lifted, and the electromagnetic attraction surface 12a of the front end is sucked by the electromagnetic needle selector, the rear end falls, and the rear needle 踵12c sinks into the needle groove (not exposed outside the needle groove). When the selector needle 12 is relatively moved to the needle selection position of the needle selection triangle 946 (or 944 or 947), the needle needle that does not participate in knitting is continuously sucked by the electromagnetic needle selector, and the needle is thereafter engaged. The 踵12c is moved upward by the pushing of the needle selection triangle by the sinking of the needle selection groove (moving to the left in Fig. 15), and the intermediate sheet 11 cannot be pushed up and remains in the original position. In this position, the needle of the intermediate piece 11 is pressed by the fixed platen 923, and the intermediate piece 11 is pressed against the lower needle piece 10, and the thin rod at the rear of the needle jack 10 is elastically bent and deformed, and the upper side thereof The needles sink into the needle groove and are not pushed by the braided triangle, and the needle can not be pushed. The corresponding needle piece engaged in the knitting is separated from the electromagnetic needle selector at the needle selection position by the suction of the electromagnetic needle selector, and the front end of the needle selection piece 12 is lowered back into the needle groove, and the needle is lowered. The 踵12b, 12c exposes the needle groove, and is pushed upward by the push of the selector triangle (moving to the left in the drawing) to push the intermediate piece 11 upward, and the needle of the intermediate piece 11 is not pressed by the fixed platen 923, the needle jack 10 Also, it is not pressed, and the upper needle 10a is exposed outside the needle groove, and is pushed by the stitching triangle 180, thereby pushing the tongue 9 to perform a loop knitting operation. If the selector needle 12 is relatively moved to the second needle selection position of the needle selection triangle 206 (207), and the movable needle selection triangle is moved to the upper side of the bottom plane of the triangular plate, the upper needle 12c will continue to be subjected to the needle selection triangle 206. The pushing of (207) causes it to move up again, pushing the needle jack 10 upward, and the upper needle 10a is pushed by the transfer triangle 870 to complete the transfer knitting. When the loop knitting and the tuck knitting are to be performed, the cooperation of the movable platen 261 and the movable platen 572 is also required.

The above-mentioned auxiliary needle combination is complicated in its control because of the large number of auxiliary needles used. Fig. 16 is a structural view of the corresponding knitting control system of the latch needle and the auxiliary needle shown in Fig. 15. It has two weaving units, each of which consists of a braided area I distributed on the upper side of the triangular base plate, a platen area II in the middle and a needle selecting area III on the lower side. Various weaving triangles are arranged in the weaving area, such as: a needle triangle 870, a looping needle triangle 178, a looping triangle 372, and the like. The movable platen 261, 572 is fixed in the platen area, and is fixed The pressure plate 923 is provided with an electromagnetic needle selector 100 and various needle selection triangles such as 206, 207, 944 to 947 and needle selection plates 274 and 275. The entire triangular base plate has a complicated structure and a large size. The knitting control system is installed on the head of the computer horizontal knitting machine, so the size of the machine head is also relatively large. The machine head runs on the needle bed, the size of the needle bed is inevitably increased, and the needle bed is a casting part, and the larger bed body is inevitably consumable. Therefore, the complicated triangular bottom plate and the large bed structure make the manufacturing cost of the computer horizontal knitting machine high.

The knitting needle combination proposed by the applicant in the previous application (application number: 200810122648.0) is composed of a combination of a tongue needle and a needle jack. The needle needle piece combines the functions of the original needle needle and the needle selection needle, so that the needle The number of auxiliary needles in the tank is reduced, and the corresponding needle groove length is greatly shortened, thereby greatly reducing the size of the needle bed and the entire knitting machine. However, the knitting needle combination and the corresponding knitting machine cannot perform complicated front and back twisting, and the knitting function is not complete. Summary of the invention

The object of the present invention is to overcome the deficiencies of the prior art described above, and to design a kind that can greatly reduce the overall size of the corresponding knitting control system and the flat knitting machine, greatly simplify the knitting control system, and greatly reduce the manufacturing cost of the whole machine. A needle combination for needle selection.

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

The utility model is composed of a needle jack and a tongue, wherein the needle jack has an electromagnetic suction surface on the upper side of the front end of the base body, and a front needle and a rear needle are arranged in the front and rear positions on the rear side of the electromagnetic suction surface. The lower side of the base body is sequentially provided with an engaging portion and an elastic rod according to the front and rear positions, and the jack needle piece is integrally combined with the tongue by the upper engaging portion.

The electromagnetic attraction surface may also be provided on the lower side of the rear end of the base body.

The front end of the engaging portion on the lower side of the needle jack base body is further provided with a lower positioning surface for the needle body of the latch needle Positioning on.

The upper side of the electromagnetic attraction surface is provided with an upper positioning surface for positioning on the knitting triangle when the needle jack is pushed by the braided triangle.

The upper side of the rear end of the needle jack base body is further provided with an upper positioning surface for positioning on the knitting triangle when the jack needle piece is pushed by the braiding triangle.

The invention only needs one auxiliary needle of the needle piece to assist the action of the tongue, and the needle piece integrates the needle piece for pushing the needle movement in the prior art and the needle selection piece for determining whether the tongue needle participates in knitting and determining the needle needle. What kind of woven flower pattern (intermediate film) functions, and the length of the entire knitting needle is greatly shortened, so that the size of the triangular bottom plate is greatly reduced, and the size of the bed structure matched with it is also greatly reduced, and the consumables are small. At the same time, there is no pressure plate area and no independent needle selection area in the corresponding knitting control system. The system structure is very simple, but it has a complete weaving function, that is, it has all the knitting functions of the existing complicated computerized flat knitting machine. If it can be turned on and off, this will lay a solid foundation for the reduction of the manufacturing cost of the computerized flat knitting machine. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a jack needle of the present invention.

Figure 2 is a schematic view showing the structure of the latch needle of the present invention.

Fig. 3 is a schematic view showing the structure of a knitting needle assembly of the present invention.

Figure 4 is a schematic view of the positioning of the needle jack on the braided triangle when it is pushed by the braided triangle.

Fig. 5 is a schematic view showing the structure of a knitting control system corresponding to the knitting needle assembly shown in Fig. 3.

Figure 6 is a partial enlarged view of the structure of the knitting control system shown in Figure 5 in a schematic view.

Fig. 7 is a schematic view showing the structure in which the knitting needle assembly is in a non-woven state.

Fig. 8 is a trajectory diagram of the front and rear needles of the needle jack in the knitting region in the loop knitting. Fig. 9 is a trajectory diagram of the front and rear needles of the needle jack in the knitting region during the transfer knitting.

Fig. 10 is a trajectory diagram of the front and rear needles in the knitting region when the knitting needle assembly does not participate in knitting. Fig. 11 is a trajectory diagram of the front and rear needles of the needle jack in the knitting region when the loop is knitted.

Fig. 12 is a trajectory diagram of the front and rear needles of the needle jack in the knitting region during the knitting of the tuck.

Figure 13 is a schematic view showing another structure of the needle jack of the present invention.

Fig. 14 is a view showing another configuration of the knitting needle assembly of the present invention and a mounting position of the electromagnetic needle selector in the corresponding knitting control system.

Figure 15 is a structural view of a tongue of a computerized flat knitting machine and a corresponding set of auxiliary needles produced by Stoll.

Fig. 16 is a schematic view showing the structure of a knitting control system corresponding to the needle and the auxiliary needle shown in Fig. 15. In the figure, 1 is a needle bed, 9 is a tongue on the Stoll computerized flat knitting machine, 9a is a groove on the tongue, 10 is a needle on the Stoll flat knitting machine, 10a is a groove on the needle 10, 10b is The needle pin on the needle jack 10, 11 is the middle piece, l la, l ib is the needle pin on the middle piece, 12. is the selector piece on the Stoll computer flat knitting machine, 12a is the picking surface on the selector piece, 12b, 12c Is the needle 选 on the needle 12, 12d is the elastic rod on the needle 12, 20 is the needle, 21 is the needle base, 22 is the engagement part, 23 is the rear needle 踵, 24 is the front needle踵, 25 is the suction surface, 26 is the elastic rod, 27 is the lower positioning surface, 28 is the upper positioning surface, 30 is the tongue of the present invention, 31 is the needle body of the tongue 30, and 32 is the needle 30 Slot, 40 is the triangular bottom plate, 41 is the pressing needle triangle, 42 is the looping round triangle, 43 shifting triangle, 44 shifting the needle triangle, 45 needle triangle, 46 is the circle triangle, 47 is the circle triangle, 48 is the collar triangle, 49 reset triangle, 50 is the needle selection plate, 60 is the electromagnetic needle selector, 61 is the magnetic guide plate, 62 is the electromagnetic coil, 70 is the braided triangle, 80 is the needle bed, 81 needle groove, 8 2 is the notch on the needle groove, 90 is the computer horizontal knitting machine head, 100 is the electromagnetic needle selector, 178 is the looping needle triangle, 261, 572 is the movable platen, 274, 275 is the needle selection plate, 372 is the Circle triangle, 870 is the needle triangle, 923 is the fixed pressure Plates, 206, 207, 944~947 are needle selection triangles.

detailed description

The invention and its advantages are further described below in conjunction with the drawings and embodiments.

The needle assembly of the present invention consists of a latch needle and a needle jack. The structure of the needle jack 20 and the latch needle 30 can be seen in Fig. 1 and Fig. 2.

Referring to Fig. 1, the electromagnetic attraction surface is sequentially arranged on the upper side of the base 21 of the needle jack 20 in the front and rear positions.

25. The front needle 踵 24 and the rear needle 踵 23, and the lower side of the base body is provided with an engaging portion 22 and an elastic rod 26 in this order. A lower positioning surface 27 is further provided at the front end of the engaging portion 22, and an upper positioning surface 28 is further provided on the upper side of the rear end of the base body.

Referring to Fig. 2, a fitting groove 32 corresponding to the engaging portion 22 is provided on the needle body 31 of the latch needle, and the needle body at the rear end of the engaging groove is gradually inclined downward from the front to the rear.

Referring to Fig. 3, the needle jack 20 is fitted into the engaging groove 32 of the needle body 31 of the latch needle 30 through the engaging portion 22 thereon, and is positioned on the upper side of the needle body of the needle by the lower positioning surface 27. , the two are assembled to form a combination and placed in each of the needle grooves on the needle bed.

The above-described knitting needle assembly formed by fitting the tongue 30 and the needle jack 20 is controlled by the knitting control system shown in FIG. The braided control system consists of a triangular base plate 40, an electromagnetic needle selector 60 placed at the upper end of the triangular base plate, and two sets of braided triangles placed on the triangular base plate. Each group of braided triangles has a braided area on the triangular base plate 40. Each of the braided areas mainly has a transfer needle triangle 44, a transfer triangle 43, a looping needle triangle 42, a loop triangle 47, and a collar triangle 48. The needle triangle 45, the collar triangle 46, the needle triangle 41, and the like. An electromagnetic needle selector 60 composed of a solenoid 62 and a magnetic conductive plate 61 is mounted on the upper end of the triangular base plate 40, and forms two pairs of symmetrical needle selection positions in each knitting region, that is, a needle selection position farther from the center of the knitting region. I and the needle selection position II which is closer to the center of the woven region. The needle selection platen 50 is mounted on the outer side of the needle selection position I. Compared with the control mechanism shown in Fig. 16, the whole knitting control system is much simpler. The needle selection area is coincident in the weaving area, and there is no pressure plate area and independent needle selection area, so that the longitudinal dimension of the triangular bottom plate is greatly reduced, and the needle bed size is also This is reduced, which greatly saves consumables, thereby greatly reducing the cost of the whole machine.

The knitting activity of the latch needle 30 is controlled by the braiding triangle, and the braiding triangle pushes the corresponding latch needle 20 upward by pushing against the back butt 23 or the front butt 24 of the tongue for the needle jack 20, and the knitting is completed. The front needle 24 or the rear needle 23 of the needle jack 20 is then pushed by the associated braiding triangle to reset the corresponding latch needle. When the needle jack 20 is pushed by the relevant knitting triangle, the upper positioning surface 28 is positioned on the upper side of the corresponding knitting triangle 70, so that the movement of the needle 20 is more stable and reliable, see Fig. 4.

Before weaving, the state of the tongue and the needle jack is shown in Figure 6. The back needle of the needle jack is exposed outside the needle groove. When knitting is performed, the knitting head 90 of the knitting control system shown in Fig. 5 reciprocates on the needle bed 80, and the groove wall of the needle groove 81 on the needle bed is provided with a corresponding notch 82 through which the needle pressing plate 50 passes. When the needle selecting plate 50 passes over the needle groove, the base body 21 of the needle jack in the needle groove is pressed downward, so that the needle jack piece rotates with the rear end of the elastic rod 26 as a fulcrum, and the electromagnetic attraction surface 25 at the front end thereof rotates upward. The magnetic guide plate 61 is sucked by the needle selector, the elastic rod 26 of the needle jack is pressed and deformed, the rear portion is rotated downward, and the rear needle sill 23 is sunk into the needle groove. The needle body of the engagement groove 32 of the tongue is inclined downwardly at the rear end to make room for the rotation.

When the pattern knitting is performed, the knitting state of the plurality of tongues 30 on the needle bed is different, and some of the knitting needles do not participate in the knitting. According to the needs of the knitting pattern, the needle selector 60 pairs the needles in all the needle grooves on the needle bed. Perform needle selection.

When the needle selection position I runs on the needle selector 60 to the upper of the needle groove, if the needle needle 30 in the needle groove does not participate in the knitting, the magnetic conductive plate 61 will continue to suck the corresponding needle jack 20 to make the rear needle The 踵23 is not exposed to the outside of the needle groove 81 and is not woven by the woven triangle 70, so as shown in Fig. 7. If the latch needle 30 in the needle slot participates in the knitting, the needle selector 60 causes the magnetic conductive plate 61 to no longer absorb the electromagnetic attraction of the jack needle. The surface 25, the needle jack 20, disengages the magnetic conductive plate 61, and ejects the rear portion under the elastic stress of the elastic rod 26, and the front and rear needles all expose the needle groove 81. If the circled triangle 47 is on the upper side of the triangular base plate (the transfer triangle 43 is on the lower side of the triangular base plate, indicated by a broken line), the rear needle cymbal 23 will be pushed by the looping triangle 47 to form a loop knitting, which is quite The front and rear needle trajectories of the needle 20 are shown in Fig. 8. If the transfer cam 43 is on the upper side of the triangular bottom plate, the front butt 24 will be pushed by the transfer cam 43 to perform the transfer knitting. The front and rear needle trajectories of the needle jack 20 are shown in Fig. 9.

The needle jack 20 continues to be sucked at the needle selecting position I, and when the needle selecting position II on the needle selector 60 is moved to the needle groove where the needle jack 20 is located, the needle jack is held if it is still sucked. The 20 corresponding needles will not participate in the knitting of the knitting head. The front and rear needles 23 and 24 of the needle jack are not affected by the weaving triangle, and the knitting needle combination is relatively translated out of the weaving area, and its trajectory is shown in Fig. 10. If it is not sucked, the same as above, the front and rear needles of the needle jack 20 are all exposed to the needle groove 81. At this time, if the collar triangle 46 is at the lower position, the needle jack 23 is first subjected to the collar triangle. After 46, it is pushed by the collar triangle 48 to perform the loop weaving. The front and rear needle trajectories of the needle jack 20 are shown in Fig. 11. If the tuck triangle 46 is in the upper position, the needle pinch 23 of the needle jack is pushed to the tucking circle 46 to perform the tuck knitting. The front and rear needle trajectories of the needle jack 20 are shown in Fig. 12.

Thus, the knitting needle assembly of the present invention cooperates with the corresponding knitting control system to complete the various knittings of the latch needle under the action of an auxiliary needle of the needle jack.

The electromagnetic attraction surface 25 of the needle jack of the present invention can be reversely disposed, i.e., disposed on the lower side of the rear end of the needle jack base 21, see Fig. 13. The needle jack 20' is combined with the needle formed by the latch needle 30 in the needle groove, and the electromagnetic needle selector 60 in the corresponding braiding control system is placed on the rear side of the lower end of the triangular base 40, see Fig. 14. The working principle and process of the knitting needle combination and the corresponding knitting control system are the same as those of the knitting needle combination and knitting control system shown in Figs. 3 and 5, and will not be described again.

Claims

Rights request

1. A knitting needle assembly suitable for an electromagnetic needle selection, comprising a needle jack and a tongue, wherein: the needle jack has an electromagnetic suction surface on an upper side of the front end of the base body or a lower side of the rear end of the base body. A front needle cymbal and a rear needle cymbal are sequentially arranged on the rear side of the electromagnetic suction surface according to the front and rear positions, and an engaging portion and an elastic rod are sequentially arranged on the lower side of the base of the needle needle piece body, and the needle jack piece is engaged thereon. The part is integrated with the tongue and stitched together.

2. The knitting needle assembly suitable for an electromagnetic needle selection according to claim 1, wherein: a needle jack of an electromagnetic suction surface is disposed on a lower side of the rear end of the base body, and a lower side of the base of the needle jack is embedded The front end of the joint is also provided with a lower positioning surface for positioning on the needle body of the latch needle.

The knitting needle assembly suitable for electromagnetic needle selection according to claim 1 or 2, characterized in that - a needle jack of an electromagnetic suction surface is disposed on a lower side of the rear end of the base body, and the needle plunger is electromagnetically attracted The upper side of the face is provided with an upper positioning surface for positioning the needle jack on the braided triangle that urges its movement.

4. The knitting needle assembly suitable for an electromagnetic lifting needle according to claim 1, wherein: a needle jack of an electromagnetic suction surface is disposed on an upper side of the front end of the base body, and a lower side of the base of the needle jack is engaged. The front end of the front portion is also provided with a lower positioning surface for positioning on the needle body of the tongue.

The knitting needle assembly suitable for electromagnetic needle selection according to claim 1 or 4, wherein: a needle jack of an electromagnetic suction surface is disposed on an upper side of the front end of the base body, and a rear end of the base of the needle jack The upper side is also provided with an upper positioning surface for positioning the needle jack on the braided triangle that urges its movement.