Double-working-position needle plate structure, hill plate structure and computerized flat knitting machine

Abstract

The utility model relates to a double-station needle plate structure, a hill-shaped plate structure and a computerized flat knitting machine, the double-station needle plate structure simultaneously places two stitch needle groups in a needle groove, and improves the problems of few knitting modes and poor stability of the existing computerized flat knitting machine by optimizing the structures of long needles, fork needles and selected needles in the knitting needle groups. The hill-shaped plate structure is used for being matched with the double-station needle plate structure in the scheme and driving the two tissue needle sets in the needle groove to conduct the knitting actions of tucking, knitting, needle turning, needle connecting and non-knitting under the cooperation of a computerized flat knitting machine and a knitting method.

Description

TECHNICAL FIELD

[0001] The utility model relates to computer flat knitting machine technical field, especially a double work position needle plate structure, mountain board structure, computer flat knitting machine. BACKGROUND

[0002] Computer flat knitting machine is a double needle plate latch needle weft knitting machine. Its cam device is like a group of plane cams, and the needle stitch of the needle can enter the channel of the cam, and the moving cam forces the needle to make regular lifting movement in the needle groove of the needle plate, and through the action of the needle hook and the latch, the yarn can be knitted into a knitted fabric. During the lifting process of the needle, the loop gradually exits the needle hook, opens the latch, and exits the latch and hangs on the needle rod; during the descending process of the needle, the needle hook hooks the newly laid yarn and pulls it to bend into a loop, and at the same time, the original loop is detached from the needle hook, and the new loop passes through the old loop and is connected in series with the old loop, and the loops knitted by the numerous needles are connected to form a knitted fabric.

[0003] At present, most of the computer flat knitting machines on the market are double needle beds, that is, the front needle bed and the rear needle bed are arranged on the flat knitting machine in front-to-back symmetry. Although the double needle bed computer flat knitting machine can basically meet the user's demand, the types of knitted fabrics that can be knitted are still limited. Although there are some double-station computer flat knitting machines on the market, it is found during operation that the needle plate structure in these computer flat knitting machines is not well optimized according to the characteristics of the double-station needle. That is, the thickness of the needle group and the thickness of the insert on the double work position needle plate structure are reduced and weakened in strength, and no good adaptability improvement is made. In this case, during the operation of the computer flat knitting machine, the needle group and the insert often swing left and right in the needle groove due to insufficient strength, and at this time, needle collision or insert damage is likely to occur. Compared with the conventional double needle plate flat knitting machine, the running stability of the double-station computer flat knitting machine is not obvious, and even under the premise of considering the running stability, it is often at a disadvantage in market competition. Therefore, it is obviously necessary to develop a double-station needle plate structure that can maintain the diversification of its knitting method while ensuring the running stability. In addition, it should be noted that in the existing double-station computer flat knitting machine, the structure of the needle group in the needle plate structure is relatively complex, and its stability will decrease after long-term use, affecting the stability of the computer flat knitting machine in operation. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a double work position needle plate structure, mountain board structure, computer flat knitting machine to improve the problems of complex structure, few knitting methods and poor stability in operation of the existing computer flat knitting machine.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The double working position needle plate structure comprises a needle plate, a plurality of inserts and a spacer, the inserts are installed on the needle plate at equal intervals, gaps are left between the adjacent inserts to form needle slots extending along the width direction of the needle plate, two groups of independent and staggered knitting needle groups are slidably arranged in the needle slots; the two groups of knitting needle groups comprise knitting needles, long needles and selector needles, one group of knitting needle groups comprises long forked needles and the other group of knitting needle groups comprises short forked needles, the front end of the long needle is rotatably connected with the knitting needle to drive the knitting needle to extend or retract in the sliding slot, the long forked needle and the short forked needle are arranged on the upper surface of the rear part of the long needle, and the selector needle is arranged on the upper surface of the corresponding long forked needle and short forked needle; the long forked needle and the short forked needle have the same length, the long forked needle is provided with a needle butt I extending out of the needle slot during needle transfer, the short forked needle is provided with a needle butt II, and the needle butt I and the needle butt II are arranged in staggered positions to correspond to different working positions in the cam structure.

[0007] Preferably, the long needle comprises a body, the front end of the body is provided with a needle lifting piece head rotatably connected in the knitting needle, the rear end of the body is connected with a spring needle tail, the body is provided with a needle butt III and a needle butt IV extending out of the needle slot during needle transfer, and the body is horizontally arched upward to make the upper surface of the body flush with the upper surface of the insert in the needle transfer state.

[0008] Preferably, the rear part of the needle butt IV is provided with an extension piece extending rearward, the extension piece is above the spring needle tail, and the upper surface of the extension piece is flush with the upper surface of the insert in the needle transfer state.

[0009] Preferably, a U-shaped groove is formed between the extension piece and the spring needle tail, and the steel wire S on the needle plate slides into the U-shaped groove during the drawing process.

[0010] Preferably, the spacer leaves a clearance area in the sliding area of the two selector needles, the two selector needles are combined into one, and the combined selector needle is still slidably arranged in the needle slot and connected with the long forked needle and the short forked needle.

[0011] A cam structure suitable for the double working position needle plate structure comprises a triangular base plate, a pointed cam, a needle lifting guide block, a middle cam guide block, a disc cam, two working positions arranged in an upper and lower manner, and the two working positions correspond to drive two groups of knitting needle groups in one needle slot to independently act.

[0012] The working position comprises a weaving pressing piece, a left needle connecting pressing piece, a lifting eyelet pressing piece, a right needle connecting pressing piece and a non-weaving pressing piece which can protrude or retract from the triangular base plate under the driving of the power; the weaving pressing piece is arranged above the non-weaving pressing piece, the left needle connecting pressing piece, the lifting eyelet pressing piece and the right needle connecting pressing piece are arranged in sequence from left to right and are arranged between the weaving pressing piece and the non-weaving pressing piece.

[0013] A computerized flat knitting machine comprises a frame, a machine head and a needle plate base, the needle plate base is installed on the frame, the machine head is installed on the frame and above the needle plate base, the needle plate base has two inclined surfaces arranged in front and back symmetry, double working position needle plate structures are installed on the front and back inclined surfaces of the needle plate base, the machine head comprises a mountain plate structure, the mountain plate structure is driven by the reciprocating machine head during knitting to drive two groups of knitting needles in the double working position needle plate structure to complete the knitting action.

[0014] Compared with the prior art, the computerized flat knitting machine has the advantages that:

[0015] The double working position needle plate structure is optimized in structure, specifically, the long needle with reduced strength due to thinning is improved in structure (the arching height of the long needle body is increased to be flush with the upper edge of the insert piece during needle transfer; an extension piece is added to increase the strength of the long needle during needle transfer), effectively reducing the probability of left and right shaking of the long needle during needle transfer due to reduced strength, and improving the stability of the double working position computerized flat knitting machine during operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the utility model;

[0017] Figure 2 is a front view of the utility model;

[0018] Figure 3-1 is a structural schematic diagram of the long needle in the utility model;

[0019] Figure 3-2 is a structural schematic diagram of the existing long needle;

[0020] Figure 4 is a state of the two groups of knitting needles in the needle groove during action Figure I ;

[0021] Figure 5 is a state of the two groups of knitting needles in the needle groove during action Figure II ;

[0022] Figure 6 is a structural schematic diagram of the fork needle L / R

[0023] Figure 7 is a needle selection schematic diagram;

[0024] Figure 8 is a spacer structure diagram adapted to the fork needle of two structures;

[0025] Figure 9 is a partial structure diagram of the mountain plate of the example;

[0026] Figure 10 is a schematic diagram of the knitting state of the needle group;

[0027] Figure 11 is a schematic diagram of the turning state of the needle group;

[0028] Figure 12 is a schematic diagram of the lifting state of the needle group;

[0029] Figure 13 is a schematic diagram of the right needle state;

[0030] Figure 14 is a schematic diagram of the non-knitting state.

[0031] Fig. 10 is a schematic diagram of a double working position needle plate structure Fig. 1 is a needle plate Fig. 2 is an insert Fig. 3 is a spacer Fig. 31 is an avoiding area Fig. 4 is a needle Fig. 5 is a long needle Fig. 51 is a body Fig. 52 is a needle lifting piece head Fig. 53 is a spring needle tail Fig. 54 is a needle butt I Fig. 55 is a needle butt IV Fig. 56 is an extension piece Fig. 6C is a long fork needle Fig. 6D is a short fork needle Fig. 61 is a needle butt I Fig. 62 is a needle butt II Fig. 7 is a needle selection Fig. 71 is a needle butt I pushing piece Fig. 72 is a needle butt II pushing piece Fig. 73 is a needle butt pressing piece Fig. 20 is a cam structure S1 is a pointed cam S2 is a turning guide block S3 is a middle cam guide block S4 is a disc cam S5 is a working position S51 is a non-knitting pressing piece S52 is a left needle pressing piece S53 is a lifting pressing piece S54 is a right needle pressing piece S55 is a knitting pressing piece S6 is a cam base plate. DETAILED DESCRIPTION

[0032] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0035] A computer flat knitting machine double working position needle plate and mountain plate structure, needle plate part includes needle plate 1, insert piece 2, spacer 3, two groups of stitches.

[0036] See Figure 1 Figure 2 As shown, the insert piece 2 is inserted into the evenly distributed groove along the front and rear direction on the needle plate 1 at equal intervals, and two adjacent insert pieces 2 form a needle groove for two groups of stitches to slide and fit.

[0037] It should be noted that, as Figure 1 As shown, the needle group is arranged according to the left and right positions in the needle groove, and the needle group L is defined as the needle group L in the needle groove on the left side, and the needle group R is defined as the needle group R on the right side in the needle groove. Specifically, two groups of stitches (needle group L, needle group R) have the same structure of component needle 4, long needle 5 and needle selection 7, and also have the structure of different components fork needle. Specifically, the fork needle in the needle group L is long fork needle 6C, and the fork needle in the needle group R is short fork needle 6D.

[0038] As shown in Figure 1 As shown in, the needle 4 in the needle group L and the needle group R is slidably arranged at the front end of the needle groove, and the front end (needle plate head 52) of the long needle 5 can be rotated by a certain angle and clamped with the needle, so that the long needle can be synchronized with the needle in the needle groove. In addition, the long fork needle and the short fork needle are arranged on the upper part of the rear part of the corresponding long needle, and the needle is controlled by controlling the pressing state of the fork needle to control the lifting of the needle butt in the needle groove.

[0039] It should be noted that, as Figure 6As shown, the length of the long fork needle 6C and the short fork needle 6D in the embodiment is the same, and the A, H, B node positions at the needle tail are also the same, and the main difference between the two is that the long fork needle is provided with a needle butt I 61 and the short fork needle is provided with a needle butt II 62. Specifically, the position of the needle butt I is farther away from the position of the needle tail, that is, it corresponds to the 1# working position, and the position of the needle butt II is closer to the position of the needle tail, so as to correspond to the 2# working position. When the needle butt I and the needle butt II are placed in the needle groove, they are arranged in an up-down staggered manner, so that the two working positions arranged in an up-down staggered manner can control the two fork needles separately.

[0040] In the scheme, only by arranging the corresponding needle butt I and needle butt II of the long fork needle and the short fork needle in a staggered manner in front and back positions, the extension state of the knitting needle can be conveniently controlled by the two staggered working positions, which is convenient and fast. Compared with the existing complex structure, it has higher stability.

[0041] On the basis of the above embodiment, the following optimization and improvement are made in the scheme. The long needle 5 in the scheme includes a body 51, the front end of the body is connected with a needle lifting piece head 52, and the rear end is connected with a spring needle tail 53. The needle lifting piece head is used to realize limited rotatable connection with the knitting needle 4, and the spring needle tail is used to control the lifting state of the long needle in the needle groove. That is, when the fork needle is pressed down, the spring needle tail is pressed flat, and the long needle as a whole sinks into the needle groove, and when the pressing effect of the fork needle is lost, the spring needle tail can recover and lift the long needle. In fact, the needle butt III 54 and the needle butt IV 55 arranged at both ends of the body 51 of the long needle will protrude outside the needle groove for driving by the cam plate structure 20. In addition, in the scheme, the body 51 of the long needle is in a shape of upward horizontal arch as a whole. That is, after the long needle is lifted by the spring needle tail, the upper edge of the body is flush with the upper edge of the lifting piece.

[0042] It should be noted that, as shown in Figure 3-1 / Figure 3-2 As shown, one knitting needle group is in the range of the knitting area when performing various knitting actions, that is, between the two needle cams (needle butt III and needle butt IV) of another organization needle group. Since the number of needle grooves per inch increases when fine needles are arranged on the needle plate, the thickness of the lifting piece decreases and the hardness decreases. The cam plate structure 20 is similar to a planar cam, and when the needle cams on the long needle 5 of the knitting needle group are pushed to move forward and backward, if the distance E is too large, that is, if the long needle with the structure as shown in Figure 3-2 The distance E between the body 51 and the upper surface of the lifting piece is too large, and the thin and soft thickness of the fine needle lifting piece will cause the knitting needle group to swing left and right when moving forward and backward in the range of the knitting area, which will affect normal knitting and cause the phenomenon of needle collision and lifting piece damage, affecting maintenance cost and machine stability. Therefore, the scheme adopts the long needle as shown in Figure 3-1The long needle with a medium structure, that is, the long needle body 51 has a horizontally arched structure, so that when the long needle is lifted, the upper edge of the body can be flush with or as flush as possible with the upper edge of the insert, so as to shorten the distance E as much as possible, that is, to enhance the needle groove strength and increase the stability of the knitting needle group in the knitting area.

[0043] Based on the above implementation methods, this solution also makes the following optimizations and improvements, such as... Figure 3-1 As shown, an extension piece 56 extending rearward is provided behind the needle heel IV. Specifically, the extension piece is positioned above the spring needle tail 53, and when the long needle 5 slides in the needle groove, the upper edge of the extension piece is flush with the upper edge of the insert piece.

[0044] See Figure 5 The diagram shows the state of two needle groups operating within the needle groove. Only one needle group can operate within one needle groove, while the other needle group is in the reset zone, pressed down by the fork needle. When one needle group completes the tightening process after the needle loop is finished, it is positioned behind the needle pin IV of the other needle group, up to the wire S position. At this time, the distance between the long needle connection point and the upper edge of the insert is F. However, based on production experience, it has been found that if the distance F in the diagram is too large, it will cause the insert in the tightening zone to become too soft, affecting normal tightening. By setting an extension piece 56 behind the needle pin IV, the original distance F can be reduced to a distance G, thereby increasing the strength of the needle groove and the stability of the needle group during operation within the tightening zone.

[0045] In addition, it should be noted that, in order to further improve the stability during coil tightening, a U-shaped groove is formed between the extension piece 56 and the lower spring needle tail 53. When the coil is tightened, the steel wire S threaded on the needle plate 1 will slide into the U-shaped groove, thereby playing a guiding and constraining role.

[0046] In addition, based on the above implementation method, this solution has made the following optimizations and improvements, as detailed below. Figure 7 , Figure 8The two selecting needles in the present scheme are designed separately, that is, one piece of selecting needle corresponds to one group of knitting needles. This form has the advantage of precise control, but the above structure also has some problems. The main problem is that the installation time required is increased and the installation difficulty is increased. Therefore, the selecting needle is improved as follows. Specifically, the movement area of the two selecting needles 7 on the spacer 3 is cut off to leave a clearance area 31. At the same time, the two selecting needles are combined into one, that is, the two thin selecting needles are combined into one thicker selecting needle, and it is ensured that the selecting needle can simultaneously abut on the needle tail of the two forked needles when sliding to drive the two forked needles to move simultaneously. It should be noted that the two selecting needles with the same number of segments are arranged in the needle groove, and the advantage of using one selecting needle is to reduce the installation difficulty and labor cost, and the cut part of the spacer can reduce the material cost. However, the selecting needle is in a curved state and is clamped in the needle groove, the thickness of the selecting needle is increased, the elastic force is increased, the resistance in the needle groove is increased, and the triangular wear of the cam plate is increased. Therefore, when selecting the structure form of the selecting needle, the two forms can be selected according to the actual situation.

[0047] It should be noted that, as shown in Figure 7 The selecting needle in the present scheme is arranged in the needle groove according to the number of segments, for example, 8 selecting needles. The selecting needle is divided into 8 selecting needles according to the different positions of the needle pressing cam 73 between the two needle pushing cams 71 and 72, and the 8 selecting needles are arranged in sequence as a group. In the present example, if two forked needles are arranged in the same needle groove, in order to maintain the synchronous actuation of the two forked needles, two selecting needles with the same number of segments are arranged in the needle groove, and the two selecting needles have the same position of the needle pressing cam, and the two selecting needles are separated by the spacer 3.

[0048] The present scheme also discloses a cam plate structure, specifically as shown in Figure 9 The cam plate structure includes a triangular base plate S6, a pointed hill S1, a needle turning guide block S2, a middle hill guide block S3, a disc hill S4, and two working positions arranged in an upper and lower manner. The two working positions correspond to the independent action of the two groups of knitting needles in the driving needle groove. The distance between the pointed hill S1 and the needle turning guide block S2 forms a needle turning needle path, the middle of the middle hill guide block S3 is a knitting needle path, and the disc hill S4 controls the lifting eye and the needle connecting needle path.

[0049] The working position S5 includes a knitting pressing piece S55, a left needle connecting pressing piece S52, a lifting eye pressing piece S53, a right needle connecting pressing piece S54, and a non-weaving pressing piece S51 which can protrude from or retract into the triangular base plate S6 under the action of the driving force. The knitting pressing piece S55 is located above the non-weaving pressing piece S51, and the left needle connecting pressing piece S52, the lifting eye pressing piece S53, and the right needle connecting pressing piece S54 are arranged in sequence from left to right and located between the knitting pressing piece S55 and the non-weaving pressing piece S51.

[0050] It should be noted that, in the present scheme, in order to facilitate the distinction, Figure 9Two groups of working positions in the computerized flat knitting machine are defined as 1# working position and 2# working position according to upper and lower positions. The 1# working position is at the upper part and is used to control the needle group with long forked needles, and the 2# working position is at the lower part and is used to control the working position with short forked needles.

[0051] In addition, the computerized flat knitting machine is also disclosed. The computerized flat knitting machine comprises a machine frame, a machine head and a needle plate base. The needle plate base is installed on the machine frame, and the machine head is installed on the machine frame and above the needle plate base. The needle plate base has two inclined surfaces arranged in front and back symmetry. The double working position needle plate structure 10 is installed on the front and back inclined surfaces of the needle plate base. The machine head comprises the mountain plate structure 20. The mountain plate structure 20 is driven by the reciprocating machine head to drive two groups of knitting needles in the double working position needle plate structure 10 to move to complete the knitting action during knitting.

[0052] Working principle:

[0053] It should be noted that the above disclosed computerized flat knitting machine is used to control the state of the needle group during knitting.

[0054] Specifically, the knitting method comprises lifting eyes, knitting, needle turning, needle joining, tight lifting eyes, tight knitting and non-knitting.

[0055] Setting: the machine head has two working positions, the working position at the upper part is 1# working position, and the working position at the lower part is 2# working position. Two groups of knitting needles in the needle slot are defined as knitting needle group L and knitting needle group R according to the left and right distribution. The knitting needle group L is controlled by 1# working position, and the knitting needle group R is controlled by 2# working position. The long forked needle and the short forked needle can be in three state positions under the pushing and pressing of the needle selection. The three state positions are B state position, H state position and A state position from top to bottom. The A state position corresponds to the knitting pressure plate, the H state position corresponds to the left needle joining pressure plate, the eye lifting pressure plate and the right needle joining pressure plate, and the B state position corresponds to the non-knitting pressure plate.

[0056] (I) when knitting, as shown in Figure 10 , the needle selection is pushed and pressed by the mountain plate structure in the machine head to push the long forked needle and the short forked needle to A state position at the same time.

[0057] The A position knitting pressure plate can be up and down. The knitting pressure plate in 1# working position and the knitting pressure plate in 2# working position move in opposite directions, that is, when one pressure plate is extended, the other pressure plate is retracted. When the knitting needle group reaches the working position, one group of knitting needles is pressed to be in the non-needle lifting state, and the other group of knitting needles is not pressed to be in the normal needle lifting state. During knitting, the needle turning guide block is retracted, and the needle butt IV of the long needle enters the middle mountain guide block knitting needle path to perform the knitting action.

[0058] (II) when turning the needle, as shown in Figure 11 , the needle selection is pushed and pressed by the mountain plate structure in the machine head to push the long forked needle and the short forked needle to A state position at the same time.

[0059] When the knitting presser plate presses down one group of needles and the other group of needles is not pressed down, when the needles are turned, the middle mountain guide is retracted, the long needle cam III enters the needle turning path between the sharp mountain S1 and the needle turning guide S2 to perform the needle turning action.

[0060] (Three), when the eyelet is performed, as shown in Figure 12 , the long fork needle and the short fork needle are simultaneously pushed up to the H state position by the push of the mountain plate structure in the needle selection receiver head, the left connecting needle presser plate, the eyelet presser plate and the right connecting needle presser plate can be up and down, when the eyelet is performed, the left connecting needle presser plate and the right connecting needle presser plate in one working position are in the retracted state, the eyelet presser plate is in the extended state, the left connecting needle presser plate, the eyelet presser plate and the connecting needle presser plate in the other working position are all in the extended state, that is, the effect is the same as the knitting presser plate pressing down the needle group to realize non-ejection, the long needle cam IV of the ejected needle group travels along the needle path formed by the middle mountain guide and the dish mountain, when the fork needle reaches the eyelet presser plate position, it is pressed down by the eyelet presser plate, so that the long needle cam IV sinks into the insert plate surface and is not taken away by the knitting needle path, and then the eyelet action is completed along the eyelet trajectory.

[0061] (Four), when the needle is connected, as shown in Figure 13 , the long fork needle and the short fork needle are simultaneously pushed up to the H state position by the push of the mountain plate structure in the needle selection receiver head;

[0062] At this time, the left connecting needle presser plate in one working position is in the extended state, the eyelet presser plate and the right connecting needle presser plate are in the retracted state, the left connecting needle presser plate, the eyelet presser plate and the connecting needle presser plate in the other working position are all in the extended state, that is, the effect is the same as the knitting presser plate pressing down the needle group to realize non-ejection, the ejected needle group is first pressed down by the left connecting needle presser plate, and then the long needle cam IV enters the inside of the dish mountain, since the eyelet presser plate and the right connecting needle presser plate are both in the retracted state, the long needle cam IV extends out of the insert plate surface and drives the long needle cam IV to travel along the inside trajectory of the dish mountain, the needle turning guide is in the extended state when the needle is connected, driving the long needle cam III to act, cooperating with the inside trajectory of the dish mountain to complete the right connecting needle action, and when the left connecting needle is connected, the needle selection receiver head travels in the opposite direction, the left connecting needle presser plate and the eyelet presser plate in one working position are both in the retracted state, and the right connecting needle cam is in the extended state, the connecting needle trajectory is the same as the right connecting needle trajectory.

[0063] (Five), when not weaving, as shown in Figure 14 , the long fork needle and the short fork needle are in the B state position, the non-weaving presser plate in the 1# working position and the 2# working position presses the needles to press both groups of needles into the needle slot without ejection.

[0064] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual working position needle plate structure (10) characterized by: The invention relates to a needle plate (1), a plurality of inserts (2) are installed on the needle plate (1) at equal intervals, gaps are left between the adjacent inserts (2) to form needle slots extending along the width direction of the needle plate (1), two groups of independent and staggered running knitting needle groups are slidably arranged in the needle slots; the two groups of knitting needle groups comprise knitting needles (4), long needles (5) and selectors (7), one group of knitting needle groups comprises long forked needles (6C), and the other group of knitting needle groups comprises short forked needles (6D), the front end of the long needle (5) is rotatably connected with the knitting needle (4) to drive the knitting needle (4) to extend and retract in the sliding slot, the long forked needle (6C) and the short forked needle (6D) are arranged on the upper surface of the rear part of the long needle (5) respectively, the selector (7) is arranged on the upper surface of the corresponding long forked needle (6C) and short forked needle (6D), the long forked needle (6C) and the short forked needle (6D) have the same length, a needle butt I (61) of the long forked needle (6C) is arranged to protrude out of the needle slot during needle running, a needle butt II (62) of the short forked needle (6D) is arranged, and the needle butt I (61) and the needle butt II (62) are arranged in a staggered manner to correspond to different working positions in the cam plate structure.

2. A dual position needle plate structure (10) as claimed in claim 1 characterized in that: The long needle (5) comprises a body (51), a needle lifting piece head (52) is arranged at the front end of the body (51) and rotatably connected in the knitting needle (4), a spring needle tail (53) is connected to the rear end of the body (51), a needle butt III (54) and a needle butt IV (55) are arranged on the body (51) to protrude out of the needle slot during needle running, and the body (51) is horizontally arched upward to make the upper edge of the body (51) flush with the upper edge of the insert (2) in the needle running state.

3. A dual position needle plate structure (10) as claimed in claim 2, characterized in that: A rear extension piece (56) is arranged behind the needle butt IV (55), the extension piece (56) is above the spring needle tail (53), and the upper edge of the extension piece (56) is flush with the upper edge of the insert (2) in the needle running state.

4. A dual position needle plate structure (10) as claimed in claim 3, characterized in that: A U-shaped groove is formed between the extension piece (56) and the spring needle tail (53), and the steel wire S on the needle plate (1) slides into the U-shaped groove during the drawing process.

5. A dual position needle plate structure (10) as claimed in claim 4, characterized in that: The spacer (3) leaves a avoiding area (31) in the sliding area of the two selectors (7), the two selectors (7) are combined into one, and the combined selector (7) is still slidably arranged in the needle slot and connected with the long forked needle (6C) and the short forked needle (6D).

6. A cam plate structure (20) adapted to the double-stitch plate structure (10) according to any one of claims 1 to 5, characterized in that: The invention relates to a needle plate (1), a plurality of inserts (2) are installed on the needle plate (1) at equal intervals, gaps are left between the adjacent inserts (2) to form needle slots extending along the width direction of the needle plate (1), two groups of independent and staggered running knitting needle groups are slidably arranged in the needle slots; the two groups of knitting needle groups comprise knitting needles (4), long needles (5) and selectors (7), one group of knitting needle groups comprises long forked needles (6C), and the other group of knitting needle groups comprises short forked needles (6D), the front end of the long needle (5) is rotatably connected with the knitting needle (4) to drive the knitting needle (4) to extend and retract in the sliding slot, the long forked needle (6C) and the short forked needle (6D) are arranged on the upper surface of the rear part of the long needle (5) respectively, the selector (7) is arranged on the upper surface of the corresponding long forked needle (6C) and short forked needle (6D), the long forked needle (6C) and the short forked needle (6D) have the same length, a needle butt I (61) of the long forked needle (6C) is arranged to protrude out of the needle slot during needle running, a needle butt II (62) of the short forked needle (6D) is arranged, and the needle butt I (61) and the needle butt II (62) are arranged in a staggered manner to correspond to different working positions in the cam plate structure. The working position (S5) includes the knitting press plate (S55), the left needle press plate (S52), the eyelet press plate (S53), the right needle press plate (S54) and the non-woven press plate (S51) which can protrude from or retract into the triangular base plate (S6) under the power drive; the knitting press plate (S55) is located above the non-woven press plate (S51), and the left needle press plate (S52), the eyelet press plate (S53) and the right needle press plate (S54) are sequentially arranged from left to right and located between the knitting press plate (S55) and the non-woven press plate (S51).

7. A computerized flat knitting machine comprising a frame, a head and a needle bed base, said needle bed base being mounted on the frame, the head being mounted on the frame and located above the needle bed base, the needle bed base having two slopes arranged in front and back symmetry, characterized in that: The double-working-position needle plate structure (10) of any one of claims 1-5 is installed on the front and rear inclined surfaces of the needle plate base, the head includes the mountain plate structure (20) of claim 6, and the head reciprocatingly moves to drive the two groups of stitch needles in the double-working-position needle plate structure (10) to act to complete the knitting action.

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