WO2010006503A1 - A knitting control system for flat knitting machine - Google Patents

Abstract

A knitting control system for a flat knitting machine, which includes: a triangular bottom plate (71), a knitting triangle and a control system. A needle selection position (II) is relatively close to centre of a knitting area and provided at a rear side of a needle butt that is contacted with an original position of a loop forming stitching triangle. Another needle selection position (I) is relatively far way from the centre of the knitting area and provided at a front side of the butt that is contacted with the        original position of the stitching triangle.

Description

 Triangle knitting control system using electromagnetic needle selection

 The invention relates to a computerized flat knitting machine, in particular to a triangular knitting control system using an electromagnetic needle selection.

Background technique

The knitting control system of the computer horizontal knitting machine is arranged on the triangular bottom plate, generally composed of a plurality of knitting units

Weaving triangle, there are fixed pressure plate and movable pressure plate in the pressure plate area. There are needle selectors (both mechanical and electromagnetic), needle selection plate (or needle selection) and needle selection triangle in the needle selection area.

 Figure 12 is a triangular braided control system for a computerized flat knitting machine manufactured by Stoll, Germany, using an electromagnetic needle selection. In the weaving area I, there are mainly braided triangles such as a looping triangle 180, a looping stitch triangle 178, a needle pressing triangle 870, a shifting needle triangle 335, and a collar triangle 863. In the middle of the triangular bottom plate are movable platens 261, 572 and fixed platen 923. In the lower part of the triangular base plate, there are an electromagnetic needle selector 100, needle selection triangles 206, 207, 944, 946, 947 and needle selection plates 274, 275.

 Figure 13 is a tissue needle assembly incorporating the braided control system of Figure 12, which is comprised of a latch needle 9 and a corresponding set of auxiliary needles. The auxiliary needle includes a needle jack 10, an intermediate sheet 11, and a needle selecting piece 12.

When each row of knitting is performed, the needle pressing plate 274 (or 275) is first pressed to press the rear needle 12b of the needle selecting piece 12, and the leading end of the needle selecting piece is lifted up, and is sucked and held by the electromagnetic needle selector 100. The rear needle 12b sinks into the needle groove (not exposed outside the needle groove). When the selector 12 is relatively moved to the first selection position of the selector triangle 947 (or 944 or 946), the corresponding needle is not involved in the knitting, and the corresponding selector is continuously sucked by the electromagnetic selector. The rear needle 踵12b is moved upward by the sinking of the needle selection triangle due to sinking into the needle groove (in the figure) Move left), the intermediate piece 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, so that the intermediate piece 11 is pressed against the lower needle piece 10, and the needle pin on the upper side of the needle jack 10 sinks into the needle groove, and is not subjected to The push to the braided triangle does not push the tongue to perform the weaving action. 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 rear end is upward. When the needles 12a, 12b are exposed, the needle 12b will be pushed upward by the inclined face of the needle selection triangle 944 (or 947), and the intermediate piece 11 is pushed upward (moving to the left in FIG. 13), the intermediate piece 11 The needle 11a (or Hb) is not pressed by the fixed platen 923, and the needle jack 10 is not pressed, and the needle pin 10a on the upper side is exposed outside the needle groove, and is pushed by the stitching triangle 180, thereby pushing The latch needle 9 performs a loop knitting operation. If the selector needle 12 is relatively moved to the second needle selection position of the needle selection triangle 206 (or 207), and the movable needle selection triangle is moved to the upper side of the bottom plane of the triangular plate, the upper needle 12a will continue to be subjected to the needle selection triangle. The push of 206 (or 207) causes it to move up again, pushing the needle jack 10 up, and the upper needle 10a is pushed by the transfer triangle 870 to complete the transfer knitting. To perform the loop weaving and the tuck weaving, it is also necessary to have the cooperation of the movable platens 261 and 572.

 Figure 14 is a triangular braiding control system for a computerized flat knitting machine manufactured by Nipponshima Seiki Co., Ltd., using mechanical needle selection. The knitting area I in the upper part of the triangular bottom plate has a transfer needle triangle 102, a needle triangle 103, a looping needle triangle 104, a circle forming triangle 105, a needle triangle 101, a transfer triangle 106, a circle triangle and a circle triangle. 107. The middle platen area II has left and right movable platens 108, movable platens 108' and fixed platens 109. A needle selector 110 and needle selection cams 111, 112 are provided in the lower needle selection area III.

 Figure 15 is a tissue needle assembly incorporating the braided control system of Figure 14 which is comprised of a latch needle 14 and a corresponding set of auxiliary needles. The auxiliary needle includes a needle jack 15 , a flower sheet 16 , and a needle selecting piece 17 .

When knitting is performed, the selector jack 17 is first pushed by the selector jack 111, enters the first selector position, and is subjected to the selection of the selector 110. The needle selector 110 will not participate in the selected needle of the tongue 14 of the knitting When 17 is pressed, the rear needle 踵 17b of the selector blade 17 sinks into the needle groove, and the pin selection cam 112 is not pushed. At this time, the pattern piece 16 is at the lower B position, at which the pattern 踵 16a of the pattern piece 16 is pressed by the fixed platen 109, and the pattern piece 16 will press the needle piece 15 downward, the needle piece 15 After being pressed and deformed downward, the front needle shank 15a and the rear needle shank 15b on the upper side are sunk into the needle groove, and the woven triangle is not pushed. The selector jack 17 corresponding to the knitting needle 14 is not pressed by the needle selector 110, and then the butt 17b is pushed up by the selection of the selector triangle 112, and the lower needle 17c pushes the pattern 16 Moving to the H position, this position avoids the pressing of the fixed platen 109, so that the rear needle cymbal 15b of the needle jack is pushed by the ejector pin 101 and the looping triangle to complete the loop knitting. When the selector needle 17 is relatively moved to the second needle selection position of the needle selection cam 111, if the movable needle selection triangle is on the triangular bottom plate, the side pushes against the selection needle 17 to move up, and the pattern 16 is moved up from the H position. To the A position, push the needle jack up, so that it is pushed by the transfer triangle to complete the transfer knitting. If the loop knitting and the tuck weaving are to be carried out, it is necessary to cooperate with the left and right movable pressing plates 108 and the movable pressing plate 108'.

 The above two can complete the more complicated knitting control system, have more pressing plates and match the corresponding needle selection triangle, and the structure is complicated, not only has many parts, but also complicated processing and installation, and the triangular bottom plate has 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 handpiece runs on the needle bed, so the size of the needle bed will inevitably increase. The needle bed is a casting, and the larger bed is inevitably more consumable. At present, the world's resources are scarce, and steel prices are high. This relatively complicated braided control structure and relatively large bed structure make it difficult to reduce the manufacturing cost of computerized flat knitting machines.

 The applicant's knitting control system for an economical computerized horizontal knitting machine (application number: 2008101226495) was proposed earlier by the applicant. It reduces the needle groove length on the needle bed by reducing the number of auxiliary stitches on the needle needle, thereby greatly reducing the needle bed. And the structural dimensions of the entire knitting machine, but the knitting machine can not carry out more 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 above-mentioned deficiencies of the prior art, and to design a matching with a knitting needle combination composed of a latch needle and a needle jack, so that the knitting machine body structure is small, the braiding control structure is simple and the cost is low. A triangular braided control system that uses a magnetic needle selection that is reduced and woven. It is implemented by the following technical solutions:

 The utility model comprises a triangular bottom plate, a braided triangle which pushes against the needle jack and an electromagnetic needle selector, wherein the braided triangle is distributed on the triangular bottom plate to form at least one weaving area, and the weaving area comprises a transfer ring arranged in an upper part of the symmetric center of the area. The needle triangle and the transfer triangle, the circled triangle arranged in the lower part of the symmetry center of the area, the looped triangle and the circle triangle, the needle triangles symmetrically arranged on both sides of the circle of triangles, arranged in the circle from the inside to the outside a pair of collar triangles on both sides of the triangle and a pair of looping triangles, wherein the electromagnetic needle selector is disposed on the upper side of the upper end of the triangular bottom plate or the lower side of the lower end, corresponding to each of the knitting regions 4 a needle selection position, two pairs of symmetry are placed on both sides of the center of the knitting area, according to the direction of the system needle movement of the needle jack, the needle selection position II closer to the center of the knitting area is set in the needle contact The rear side of the initial position of the stitching triangle is formed, and the needle selecting position I far from the center of the knitting region is set on the front side of the initial position where the needle is in contact with the looping triangle.

 The knitting region is further provided with a needle selection plate which is disposed in the middle of the knitting region and at an outer position of the needle selection position I.

 The tucking triangle is slidably attached to the triangular base plate up and down, and slides upward to the upper tuck working position, and slides down to the lower working position of the ring.

The invention is designed according to the knitting needle combination formed by the corresponding tongue and the needle jack, and the knitting control system is made by the position setting of the electromagnetic needle selector in the knitting region, the distribution of the knitting triangle and the linkage relationship of the associated triangles. The structure becomes very simple, no need for pressing plate and no platen area, no need to select the needle triangle and the selection of the needle area overlaps with the weaving area, so that the system structure is greatly simplified, the structural size of the triangular bottom plate is greatly reduced, and the knitting function is very complete. , can carry out a variety of complex front and back pairing Weaving, which lays the foundation for the production of a computerized horizontal knitting machine with small size, low consumables, low cost and complete knitting function, meets the actual needs of the weaving industry, and also implements national resource conservation in specific product design. Strategic approach. DRAWINGS

 Figure 1 is a schematic view showing the structure of an embodiment.

 Figure 2 is a schematic diagram of the upper and lower positions and linkages of the associated braided triangle.

 Figure 3 is a schematic view showing the structure of a knitting needle combination corresponding to the knitting control system of the present invention.

 Fig. 4 is a schematic view showing the relationship between the knitting needle assembly and the system of the present invention in a non-woven state. Fig. 5 is a trajectory diagram of the front and rear needles of the needle jack in the knitting region during the knitting process.

 Fig. 6 is a trajectory diagram of the front and rear needles of the needle jack in the knitting region during the transfer knitting.

 Fig. 7 is a trajectory diagram of the front and rear needles in the knitting region when the needle assembly is not involved in knitting. Fig. 8 is a trajectory diagram of the front and rear needles of the needle jack in the knitting region when the loop is knitted.

 Fig. 9 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 10 is a schematic view showing another structure of the knitting system of the present invention.

 Fig. 11 is a structural schematic view showing the mounting position of the electromagnetic needle selector and the corresponding knitting needle assembly in the knitting control system shown in Fig. 10.

 Figure 12 is a schematic view showing the structure of a knitting control system produced by Stoll.

 Figure 13 is a schematic view showing the structure of a knitting needle corresponding to the structure of the knitting control system shown in Figure 12; Figure 14 is a schematic view showing the structure of a knitting control system produced by the company.

Fig. 15 is a schematic view showing the structure of a knitting needle assembly corresponding to the structure of the knitting control system shown in Fig. 14. In the figure, 9 is Stoll tongue, 10 needles, 10a needle needle, 11 middle piece, 11a middle piece front needle, l ib middle piece back needle, 12 needle piece, 12a needle piece Front needle 踵, 12b needle selection After the needle, 14 tongue, 15 needle, 15a needle needle front needle, 15b needle needle needle needle, 16 flower pattern, 16a flower pattern piece, 17 needle piece, 17a needle selection Front needle 踵, 17b needle 后, 17c 针, 20 needles, 21 needles, 21 needles, 22 insets, 23 posterior needles, 24 front needles, 25 suctions Surface, 26 elastic rods, 27 lower positioning surfaces, 28 upper positioning surfaces, 30 needles of the invention, 31 needles 30 needles, 32 tongues 30 with grooves, 40 braided triangles, 41 is a needle triangle 42 into the circle of the needle triangle, 43 shift triangle, 44 shift circle triangle, 45 needle triangle, 46 is the circle triangle, 47 is the circle triangle, 48 is the circle triangle, 49 reset triangle, 50 is the needle Press plate, 60 is the electromagnetic needle selector, 61 is the magnetic guide plate, 62 is the electromagnetic coil, 70 is the computer horizontal knitting machine head, 71 triangular bottom plate, 80 is the needle bed, 81 is the needle groove on the needle plate, 82 is the needle Notch on the groove, 90 lever mechanism, 100 electromagnetic needle selector, 101 needle triangle, 102 transfer needle triangle, 103 needle triangle, 104 round stitch triangle, 105 round triangle, 10 6 transfer circle triangle, 107 set circle triangle, 108 left and right movable platen, 109 fixed pressure plate, 110 needle selector, 110a needle selection, 111, 112 needle selection triangle, 178 round circle triangle, 180 round triangle, 206, 207, 944, 946, 947 needle selection triangle, 274, 275 needle selection plate, 335 transfer ring triangle, 261, 572 movable plate, 863 ring triangle, 870 needle triangle, 923 fixed plate. detailed description

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

Referring to Fig. 1, the knitting control system of the present embodiment is composed of a triangular bottom plate 71, an electromagnetic needle selector 60 placed at the upper end of the triangular base plate, and various knitting triangles and needle selection pressing plates 50 placed on the upper side of the triangular base plate. The two sets of braided triangles form two weaving regions (ie, two weaving units) on the triangular bottom plate 71, and each of the weaving regions has a weaving control triangle as follows: disposed at the upper portion of the weaving region and arranged in the region from the top to the center of the symmetric center line Upper transfer needle triangle 44 and transfer triangle 43; set in the lower part of the braid and from the top a looping stitching triangle 42, a looping triangle 47, and a collar triangle 46 arranged on the symmetry center line of the region; a pair of needle triangles 41 symmetrically placed on both sides of the looping triangle 47; a pair of collar triangles 48 and The needle raising cams 45 are arranged on the side of the tuck triangle 46 from the inside to the outside. The tuck triangle 46, the transfer cam 43, the looping return cam 42 and the looping cam 47 are movably mounted on the triangular base 71. The tucking cam 46 is slidably attached to the triangular bottom plate 71 in the longitudinal direction of the triangular bottom plate, and is slid upward to the upper tuck working position, and is slid downward to the lower working position of the ring. The transfer cam 43 and the loopback cam 42 and the loop cam 47 move up and down in a direction perpendicular to the triangular bottom surface. The looping stitching cam 42 and the looping cam 47 are integrally formed, and are interlocked with the shifting cam 43 by a lever mechanism 90. That is, when the transfer triangle 43 is higher than the bottom surface of the triangular plate 71, the loop-forming return cam 42 and the loop-shaped triangle 47 are not higher than the bottom surface of the triangular plate 71 (substantially flush with the triangular bottom surface); conversely, when the transfer triangle 43 is not Above the bottom surface of the triangular plate 71 (substantially flush with the triangular base surface), the looped return cam 42 and the looped triangle 47 are higher than the bottom surface of the triangular plate 71, see Fig. 2.

 The electromagnetic needle selector 60 is mounted on the upper end of the triangular base plate 71 and is composed of sixteen electromagnetic coils 62 and two magnetic conductive plates 61. Eight electromagnetic coils 62 are placed on the magnetic deflector. The position of the electromagnetic coil on each of the magnetic conductive plates 61 is the same. Two magnetic conductive plates 61 are placed one on top of the other in parallel, and two electromagnetic coils 62 at corresponding positions form a group of electromagnetic coils, so that the upper and lower magnetic plates form eight sets of electromagnetic coils. Each of the woven regions has four sets of electromagnetic coils 62, forming four needle selection positions corresponding to the woven area, and two pairs of symmetry are placed on both sides of the center of the woven area, and the front and rear needles of the needle jack are opposite to the system movement direction. First, the needle selection position II, which is closer to the center of the knitting region, is disposed on the rear side of the needle needle 踵 contact with the initial position F of the stitching triangle; one is the needle selection position I which is far from the center of the knitting region, Set on the front side of the needle jack 踵 to contact the initial position F of the loop start triangle, see Figure 5.

Compared with the control mechanism shown in Fig. 12 and Fig. 14, the whole knitting control system is much simpler. The needle selection area on the triangular bottom plate coincides in the weaving area, without the pressure plate, and there is no pressure composed of several pressure plates. Board area. There is no needle selection triangle, the needle selection plate is set in the weaving area, the partial knitting area of the needle selection area is overlapped, the system structure is very simple, the longitudinal dimension of the triangular bottom plate is greatly reduced, and the size of the needle bed for installing the triangular bottom plate is also followed. The reduction, the consumables are greatly saved, and the cost of the whole machine is greatly reduced.

 The knitting control system of the present invention employs a knitting needle combination as shown in FIG. It consists of a tongue 30 and a needle jack 20. Place in each needle slot on the needle bed.

 The knitting triangle pushes the corresponding needle needle 20 upward by pushing against the back needle 23 or the front needle 24 of the tongue for the needle jack 20, and then pushing the needle jack 20 by the relevant reset triangle after the knitting is completed. The front needle 24 or the rear needle 23 resets the corresponding latch needle.

When knitting is performed, the knitting system reciprocates with the knitting machine head 70 on the needle bed 80, and the groove wall of the needle groove ^1 on the needle bed is provided with a corresponding notch 82 through which the needle selection plate passes. When the needle selecting plate 50 passes over the needle groove 80, the base body 21 of the needle jack in the needle groove is pressed downward, and the needle jack piece is rotated by the rear end of the elastic deformation rod 26 as a fulcrum, and the electromagnetic attraction surface 25 of the front end thereof is upward. When it is rotated, it is sucked by the magnetic conductive plate 61 on the needle selector, the elastic deformation rod 26 of the needle jack is pressed and deformed, the rear portion thereof is rotated downward, and the rear needle 踵 23 is sunk into the needle groove. When the electromagnetic needle selector 60 is operated to the needle selection position I, if the tongue 30 in the corresponding needle groove does not participate in the knitting, the magnetic conductive plate 61 will continue to suck the corresponding needle jack 20 so that the rear needle 23 does not The outside of the needle groove 81 is not subjected to the weaving of the knitting triangle 40, and is in a non-woven state, as shown in FIG. If the latch needle 30 in the needle groove participates in the knitting, the needle selector 60 causes the magnetic conductive plate 61 to no longer attract the electromagnetic attraction surface 25 of the needle jack, the needle jack 20 disengages the magnetic conductive plate 61, and the elastic rod 26 The elastic force acts to eject the rear portion upward, 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. 5. 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. 6. 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. Before and after the needle piece, the needles 23 and 24 are not pushed by the knitting triangle, and the knitting needle combination is relatively translated out of the knitting area, and its trajectory is shown in Fig. 7. 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, for example, the collar triangle 46 is at the lower working position of the ring, and the needle jack is 23 first. After being caught by the collar triangle 46, it is pushed by the collar triangle 48, and the loop is woven. The front and rear needle trajectories of the needle jack 20 are shown in Fig. 8. If the tucking circle 46 is in the upper tucking working position, the rear needle pin 23 is pushed by the tucking triangle 46 to perform the tuck knitting, and the front and rear needle trajectories of the needle jack 20 are shown in FIG. .

 In this way, the knitting control system of the present invention cooperates with the corresponding knitting needle combination, and in the case where the control mechanism has no pressure plate area, and there is no separate needle selection area with the needle selection triangle distribution, the existing complicated one is well completed. The various complex weavings that can be accomplished by the braiding control system achieve the purpose of the present invention which greatly reduces the cost of the computerized cross knitting machine and is fully functional.

 The electromagnetic needle selector 60 in the braided control system of the present invention can be reversely disposed, i.e., disposed on the rear side of the lower end of the triangular base plate 71, see Fig. 10. The corresponding jack needle piece 20' is also reversely disposed, that is, the electromagnetic attraction surface 25 is disposed on the lower side of the rear end of the needle jack base 21, and it is engaged with the latch needle 30 to form another knitting needle combination. See Figure 11. The working principle, process and beneficial effects of the knitting control system combined with the corresponding knitting needles are completely the same as those of the knitting control system and the knitting needle shown in Figs. 1 and 3, and will not be described again.

Claims

Rights request  1. A triangular braiding control system using an electromagnetic needle selection, comprising a triangular bottom plate, a braided triangle pushing the needle jack and an electromagnetic needle selector, wherein the braided triangle is distributed on the triangular bottom plate to form at least one weaving area. The woven area comprises a transfer ring triangle and a transfer triangle arranged at an upper part of the symmetry center of the area, a circle forming triangle at the lower part of the symmetry center of the area, a looping circle triangle and a circle triangle, and a symmetrically placed circled triangle a pair of pin triangles on both sides, a pair of ring triangles and a pair of stitching triangles arranged on both sides of the tuck triangle from the inside to the outside, wherein the electromagnetic needle selector is disposed on the upper side of the upper end of the triangular bottom plate On the lower side of the upper or lower end, there are four needle selection positions corresponding to each knitting area, and a pair of two pairs are symmetrically placed on both sides of the center of the knitting area, according to the direction of the needle movement relative to the system, from the center of the knitting area The closer needle selection position II is disposed on the rear side of the needle needle contacting the initial position of the looper triangle, and the needle selection position I farther from the center of the braided region is disposed in the needle contact Looping The front side of the initial position of the needle triangle.  2. The triangular braiding control system using an electromagnetic needle selection according to claim 1, wherein: the knitting region is further provided with a needle selection pressing plate, which is disposed in the middle of the knitting region and is in the needle selection position I. On the outside position.  3. The triangulation control system using electromagnetic needle selection according to claim 1, wherein: the tuck triangle is slidably slidably attached to the triangular bottom plate, and is slid upward to the upper tuck working position. , slide down to the lower working position of the ring. 0