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

Abstract

The invention relates to a double-station needle plate structure, a hill-shaped plate structure, a computerized flat knitting machine and a knitting method, the double-station needle plate structure simultaneously places two stitch needle groups in a needle groove, and the problems of few knitting modes and poor stability of the existing computerized flat knitting machine are improved 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 present invention relates to the technical field of flat knitting machines, and in particular to a double working position needle plate structure, a mountain plate structure, a flat knitting machine and a knitting method. Background Art

[0002] A flat knitting machine is a double needle bed latch needle weft knitting machine. Its triangular device is like a group of planar cams. The needle feet of the knitting needles can enter the grooves of the cams. Moving the cams forces the knitting needles to move regularly up and down in the needle grooves of the needle plate. Through the actions of the needle hooks and the needle tongues, the yarn can be knitted into a knitted fabric. During the rising process of the knitting needle, the coil gradually exits the needle hook, the needle tongue is opened, and the needle tongue exits and hangs on the needle bar; during the descending process of the knitting needle, the needle hook hooks the newly laid yarn and pulls it into a coil. At the same time, the original coil exits the needle hook, and the new coil passes through the old coil and is connected in series with the old coil. The coil strings formed by many knitting needles are connected to each other to form a knitted fabric.

[0003] At present, most of the flat knitting machines on the market are double needle beds, that is, a front needle bed and a rear needle bed are arranged symmetrically front and back on the flat knitting machine. Although the double needle bed flat knitting machine can basically meet the needs of users, the types of knitted fabrics it can knit are still limited to a certain extent. Although there are already some double working position flat knitting machines on the market, it is found during operation that the needle plate structure in these flat knitting machines has not been well optimized according to the characteristics of the double working position knitting needles. That is: when the thickness of the knitting needle group and the thickness of the insert piece on the double working position needle plate structure are reduced and the strength is weakened, no good adaptability improvement has been made. In this case, during the operation of the flat knitting machine, the knitting needle group and the insert piece often swing left and right in the needle groove due to insufficient strength, and at this time, it is very easy to occur the situation of needle collision or damage to the insert piece. Compared with the conventional double needle plate flat knitting machine, the operation stability of this double working position flat knitting machine is not obvious, and even considering the operation stability, it is often at a disadvantage in the market competition. Therefore, it is obviously very necessary to require a double working position needle plate structure that can maintain the diversification of its own knitting methods while ensuring the operation stability. In addition, it should also be noted that in the existing double working position flat knitting machines, the structure of the knitting needle group in the needle plate structure is relatively complex, and after long-term use, its stability will also decrease, affecting the operation stability of the flat knitting machine. Summary of the Invention

[0004] The purpose of the present invention is to provide a double working position needle plate structure, a mountain plate structure, a flat knitting machine and a knitting method to improve the problems of complex structure, few knitting methods and poor stability during operation of the existing flat knitting machines.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A double working position needle plate structure for a flat knitting machine, including a needle plate, on which a number of inserts are equidistantly inserted. There are gaps between adjacent inserts to form needle grooves extending along the width direction of the needle plate. Two independent and staggered running knitting needle groups can be slidably arranged in the needle grooves. In addition to simultaneously including knitting needles, long needles, and selector needles, one of the two knitting needle groups includes long fork needles, and the other knitting needle group includes short fork needles. The front end of the long needle is rotatably clamped with the knitting needle to drive the telescopic movement of the knitting needle in the chute. The long fork needles and short fork needles are respectively arranged above the rear part of the corresponding long needles. The selector needle pieces are arranged above the corresponding long fork needles and short fork needles. The long fork needles and short fork needles are of the same length. The long fork needles are provided with needle heels Ⅰ that extend out of the needle groove during needle movement. The short fork needles are provided with needle heels Ⅱ. The needle heels Ⅰ and needle heels Ⅱ are arranged in a front-back staggered manner to correspond to different working positions in the cam plate structure.

[0006] Preferably, the long needle includes a body. The front end of the body is provided with a needle pushing head that can be rotatably clamped in the knitting needle. The rear end of the body is connected with a spring needle tail. The body is provided with needle heels Ⅲ and needle heels Ⅳ that extend out of the needle groove during needle movement. The body arches upward horizontally so that the upper edge of the body is flush with the upper edge of the insert during the needle movement state.

[0007] Preferably, a rearward extending extension piece is arranged behind the needle heel Ⅳ. The extension piece is above the spring needle tail, and the upper edge of the extension piece is flush with the upper edge of the insert during the needle movement.

[0008] Preferably, a U-shaped groove is formed between the extension piece and the spring needle tail. The wire S on the needle plate slides into the U-shaped groove during the densification process.

[0009] Preferably, the spacer leaves an avoidance area in the sliding area of two selector needles. The two selector needles are combined into one. The combined selector needle still slides in the needle groove and is connected with the long fork needle and the short fork needle at the same time.

[0010] A cam plate structure adapted to the double working position needle plate structure, including a triangular bottom plate and a sharp cam, a purl guide block, a middle cam guide block, a disc cam arranged on the triangular bottom plate from top to bottom. There are two working positions arranged vertically. The two working positions respectively drive two independent actions of the two knitting needle groups in one needle groove. The working position includes a knitting pressing piece, a left needle connecting pressing piece, a purl pressing piece, a right needle connecting pressing piece, and a non-knitting pressing piece that can protrude or retract from the triangular bottom plate under the drive of power. The knitting pressing piece is above the non-knitting pressing piece. The left needle connecting pressing piece, the purl pressing piece, and the right needle connecting pressing piece are arranged in sequence from left to right and are located between the knitting pressing piece and the non-knitting pressing piece.

[0011] A flat knitting machine includes a frame, a knitting head and a needle plate base. The needle plate base is installed on the frame, and the knitting head is installed on the frame and located above the needle plate base. The needle plate base has two inclined surfaces arranged symmetrically in the front and back. Double working position needle plate structures are installed on the front and back inclined surfaces of the needle plate base. The knitting head includes a mountain plate structure. During knitting, the reciprocating knitting head drives the mountain plate structure to drive two tissue needle groups in the double working position needle plate structure to act to complete the knitting action.

[0012] A knitting method includes The knitting method includes purl, knitting, turning needles, joining needles, tight purl, tight knitting and not knitting; It is set that the knitting head has two working positions. The working position located above is the 1# working position, and the working position located below is the 2# working position. According to the left and right distribution of the two tissue needle groups in the needle slots, they are defined as the knitting needle group L and the knitting needle group R. The knitting needle group L is controlled by the 1# working position, and the knitting needle group R is controlled by the 2# working position; The long fork needle and the short fork needle can be in three state positions under the pushing action of needle selection. The three state positions are the B state position, the H state position and the A state position from top to bottom in turn; Among them, the A state position corresponds to the knitting pressing piece, the H state position corresponds to the left joining needle pressing piece, the purl pressing piece and the right joining needle pressing piece, and the B state position corresponds to the non-knitting pressing piece; (1). When knitting, under the pushing action of the mountain plate structure in the knitting head, the long fork needle and the short fork needle are simultaneously pushed upward to the A state position; The knitting pressing piece at the A position can move up and down telescopically, and the knitting pressing piece in the 1# working position and the knitting pressing piece in the 2# working position act in the opposite direction, that is, when one pressing piece extends, the other retracts. When the knitting needle group reaches the working position, one tissue needle group is pressed down by the knitting pressing piece to be in the state of not protruding the needle, and the other group is not pressed and normally protrudes the needle. During knitting, the turning needle guide block retracts, and the heel Ⅳ of the long needle enters the knitting needle path of the middle mountain guide block to perform the knitting action.

[0013] (2). When turning needles, under the pushing action of the mountain plate structure in the knitting head, the long fork needle and the short fork needle are simultaneously pushed upward to the A state position; One tissue needle group is pressed down by the knitting pressing piece to be in the state of not protruding the needle, and the other group is not pressed and normally protrudes the needle. When turning needles, the middle mountain guide block retracts, and the heel Ⅲ of the long needle enters the turning needle path formed by the distance between the sharp mountain S1 and the turning needle guide block S2 to perform the turning needle action.

[0014] (3). When purling, see Figure 12As shown in the figure, under the pushing action of the cam structure in the machine head, the long fork needle and the short fork needle are simultaneously pushed upward to the H state position. The left needle pressing piece, the drop stitch pressing piece, and the right needle pressing piece at the H position can all move up and down telescopically. When forming a drop stitch, in one working position, the left needle pressing piece and the right needle pressing piece are in the retracted state, and the drop stitch pressing piece is in the extended state. In the other working position, the left needle pressing piece, the drop stitch pressing piece, and the needle pressing piece are all in the extended state, that is, they act the same as the knitting pressing piece pressing down the knitting needle group to prevent the needles from emerging. The long needle of a group of knitting needles that emerges travels along the needle path formed by the middle mountain guide block and the cam mountain. When the fork needle reaches the position of the drop stitch pressing piece, it is pressed down by the drop stitch pressing piece, causing the long needle to sink into the insertion surface and not be carried away by the knitting needle path, and then completing the drop stitch action along the drop stitch trajectory.

[0015] (4) When performing needle receiving, under the pushing action of the cam structure in the machine head, the long fork needle and the short fork needle are simultaneously pushed upward to the H state position; At this time, in one working position, the left needle pressing piece is in the extended state, while the drop stitch pressing piece and the right needle pressing piece are in the retracted state. In the other working position, the left needle pressing piece, the drop stitch pressing piece, and the needle pressing piece are all in the extended state, that is, they act the same as the knitting pressing piece pressing down the knitting needle group to prevent the needles from emerging. The long needle of a group of knitting needles that emerges is first pressed down by the left needle pressing piece and then the long needle enters the interior of the cam mountain. Since the drop stitch pressing piece and the right needle pressing piece are both in the retracted state, the long needle extends out of the insertion surface and drives the long needle to travel along the internal trajectory of the cam mountain. When receiving a needle, the turning needle guide block is in the extended state, driving the long needle to act, and cooperating with the internal trajectory of the cam mountain to complete the right needle receiving action. When receiving a left needle, the machine head travels in the opposite direction. In one working position, the left needle pressing piece and the drop stitch pressing piece are both in the retracted state, and the right needle triangle is in the extended state. The needle receiving trajectory is the same as the right needle receiving trajectory.

[0016] (5) When not knitting, the long fork needle and the short fork needle are in the B state position, and the non-knitting pressing pieces in the 1# working position and the 2# working position both press the needles, pressing both knitting needle groups into the needle grooves to prevent the needles from emerging.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: This solution retains the double-station structural form with two groups of knitting needles placed in one needle groove. Compared with the traditional double-needle bed structure, it effectively increases the knitting types of the computerized flat knitting machine. At the same time, this solution also optimizes the structure of the double-working-position needle plate. Specifically, structural improvements are made to the long needles with reduced strength due to excessive thinning (raising the arch height of the long needle body to be flush with the upper edge of the insertion piece during needle movement; adding an extension piece to increase the strength of the long needle during density adjustment), effectively reducing the probability of the long needle shaking left and right during the needle movement due to its own reduced strength, and improving the stability during the operation of the double-station computerized flat knitting machine. Description of the Drawings

[0018] Figure 1It is a schematic structural diagram of the present invention; Figure 2 It is the front view of the present invention; Figure 3-1 It is the schematic structural diagram of the long structure in the present invention; Figure 3-2 It is the schematic structural diagram of the existing long needle; Figure 4 It is the state when the two tissue needle groups in the needle groove are actuated Figure Ⅰ ; Figure 5 It is the state when the two tissue needle groups in the needle groove are actuated Figure Ⅱ ; Figure 6 It is the schematic structural diagram of the fork needle L / R Figure 7 It is the needle selection schematic diagram; Figure 8 It is the spacer structure diagram under the fork needle adapted to two structures; Figure 9 It is the structure diagram of the mountain plate part of this example; Figure 10 It is the schematic diagram of the knitting state of the knitting needle group; Figure 11 It is the schematic diagram of the purl state of the knitting needle group; Figure 12 It is the schematic diagram of the tuck state of the knitting needle group; Figure 13 It is the schematic diagram of the state of the right connecting needle; Figure 14 It is the schematic diagram of the state when not knitting.

[0019] Reference numerals: 10. Double working position needle plate structure, 1. Needle plate, 2. Insert piece, 3. Spacer, 31. Avoidance area, 4. Knitting needle, 5. Long needle, 51. Body, 52. Pushing needle head, 53. Spring needle tail, 54. Needle heel Ⅲ, 55. Needle heel Ⅳ, 56. Extension piece, 6C. Long fork needle, 6D. Short fork needle, 61. Needle heel Ⅰ, 62. Needle heel Ⅱ, 7. Needle selection, 71. Pushing needle heel Ⅰ, 72. Pushing needle heel Ⅱ, 73. Pressing needle heel, 20. Mountain plate structure, S1. Sharp mountain, S2. Purl guide block, S3. Medium mountain guide block, S4. Dish mountain, S5. Working position, S51. Non-knitting pressing piece, S52. Left connecting needle pressing piece, S53. Tuck pressing piece, S54. Right connecting needle pressing piece, S55. Knitting pressing piece, S6. Triangular bottom plate. Detailed implementation manners

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0023] A double working position needle plate and cam plate structure for a flat knitting machine, the needle plate part includes a needle plate 1, inserts 2, spacers 3, and two tissue needle groups.

[0024] See Figure 1 Figure 2 As shown, the inserts 2 are evenly inserted into the slots opened in the front-rear direction and evenly distributed on the needle plate 1. A needle slot for the two tissue needle groups to slide and fit into is formed between two adjacent inserts 2.

[0025] It should be noted that, as Figure 1 shown, according to the different left and right positions of the knitting needle groups arranged in the needle slot, in this solution, the knitting needle group located on the left side in the needle slot is defined as the knitting needle group L, and the knitting needle group located on the right side in the needle slot is defined as the knitting needle group R. Specifically, the two tissue needle groups (knitting needle group L, knitting needle group R) not only have the same components of knitting needles 4, long needles 5, and needle selectors 7, but also have different components of fork needles. Specifically, the fork needle in the knitting needle group L is a long fork needle 6C, while the fork needle in the knitting needle group R is a short fork needle 6D.

[0026] As Figure 1As shown, in the knitting needle group L and the knitting needle group R, the knitting needle 4 is slidably arranged at the front end of the needle groove, and the front end of the long needle 5 (the needle butt head 52) can rotate by a certain angle and is clamped with the knitting needle so that the long needle can expand and contract in the needle groove synchronously with the knitting needle. In addition, the long fork needle and the short fork needle are arranged above the rear part of the corresponding long needle. During the needle movement, by controlling the pressing state of the fork needle, the lifting and lowering of the needle butt of the long needle in the needle groove are controlled.

[0027] It should be noted that, as Figure 6 shown, the lengths of the long fork needle 6C and the short fork needle 6D in this embodiment are the same, and the positions of the A, H, and B nodes at the needle tails are also the same. The main difference between the two is the needle butt Ⅰ 61 arranged on the long fork needle and the needle butt Ⅱ 62 arranged on the short fork needle. Specifically, the position of the needle butt Ⅰ is farther from the needle tail, corresponding to the 1# working position, while the position of the needle butt Ⅱ is closer to the needle tail, corresponding to the 2# working position. When the needle butts Ⅰ and Ⅱ are placed in the needle groove in the corresponding long fork needle and short fork needle, they are arranged vertically offset so that the two vertically offset working positions can control the two fork needles separately.

[0028] In this solution, only by arranging the corresponding needle butts Ⅰ and Ⅱ in the long fork needle and the short fork needle in a vertically offset position, it is convenient to control the protruding state of the knitting needle through the two offset working positions, which is convenient and fast. Compared with the existing complex structure, it has higher stability.

[0029] On the basis of the above implementation manner, the following optimization improvements are also made in this solution. The long needle 5 in this solution includes a main body 51, the front end of the main body is connected with a needle butt head 52, and the rear end is connected with a spring needle tail 53. Among them, the needle butt head is used to realize a limited rotatable connection with the knitting needle 4, and the spring needle tail is used to control the lifting and lowering 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. When the pressing action of the fork needle is lost, the spring needle tail can recover its state and push up the long needle, and the needle butts Ⅲ 54 and Ⅳ 55 arranged at both ends of the main body 51 of the long needle will extend out of the needle groove for the driving of the cam plate structure 20. In addition, in this solution, the main body 51 part of the long needle is integrally arched upward horizontally. That is, after the long needle is pushed up by the spring needle tail, the upper edge of the main body is flush with the upper edge of the insert piece.

[0030] It should be noted that, as Figure 3-1 / Figure 3-2As shown in the figure, a knitting needle group is in the knitting area when performing various knitting actions, that is, between the two needle clocks (needle butts III and needle butts IV) of another tissue needle group. Because the number of needle grooves arranged per inch increases when making fine needles on the needle plate, the thickness of the insert is reduced and the strength and hardness are weakened. The mountain plate structure 20 is similar to a flat cam. When pushing the needle clock on the long needle 5 in the knitting needle group to move back and forth, if the distance E is too large, that is, if the following is used Figure 3-2 For the long needle of the structure shown, the distance E between the main body 51 and the upper plane of the insert is too large, and the thin needle insert is thin and soft, which will cause the knitting needle group to swing left and right when moving back and forth within the knitting area, affecting normal knitting, and also causing the phenomenon of hitting the needle and damaging the insert, affecting the maintenance cost and machine stability. Figure 4 The long needle of the medium structure, that is, the long needle body 51 is in a horizontally arched structure, so that when the long needle is lifted, the upper edge of the body can be flush with the upper edge of the insert or as flush as possible, so as to shorten the distance E as much as possible, that is, to enhance the strength of the needle groove and increase the stability of the knitting needle group within the weaving area when it is running.

[0031] Based on the above implementation, this solution also makes the following optimization improvements: Figure 3-1 / Figure 3-2 , Figure 4 As shown, a backward extending piece 56 is also provided behind the needle butt IV. Specifically, the extending piece is arranged above the spring needle tail 53, and when the long needle 5 slides in the needle groove, the upper edge of the extending piece is flush with the upper edge of the inserting piece.

[0032] See Figure 5 As shown in the figure, the state diagram of the two knitting needle groups in the needle groove when they are in motion, only one knitting needle group can be in motion in one needle groove, and the other knitting needle group is in the state of being pressed down by the fork needle in the reset area. When one knitting needle group is completed and the knitting needle loop is pulled densely, it is located behind the needle clock IV of the other knitting needle group to the position of the steel wire S. At this time, the distance between the upper edge of the insert at the long needle connection point is F. It is found from the summary in production that if the distance F in the figure is too large, the insert at the dense area position will be soft and affect the normal dense pulling. If an extension piece 56 is set behind the needle clock IV, the original distance F can be reduced to the distance G, that is, the strength of the needle groove and the stability of the knitting needle group in the dense area when it is running are increased.

[0033] In addition, it should be noted that in order to further improve the stability during pulling, a U-shaped groove is formed between the extension piece 56 and the spring needle tail 53 below. When the coil is pulled, the steel wire S passed through the needle plate 1 will slide into the U-shaped groove, thereby playing a guiding and restraining role.

[0034] In addition, based on the above implementation, this solution also makes the following optimization improvements, see Figure 7 , Figure 8, in this solution, the needle selection in the two needle groups is in a separately designed form, that is, one needle selection corresponds to one needle group. The advantage of this form is precise control. However, there are also some problems with the above structure. Specifically, the installation time required increases, and the installation difficulty improves. For this reason, the following improvements have been made to the needle selection in this solution. Specifically, the movement areas of the two needle selections 7 on the spacer 3 are cut off to create an avoidance area 31. At the same time, the two needle selections are combined into one, that is, two thin needle selections are combined into one thicker needle selection, and it is ensured that the needle selection can simultaneously abut against the needle tails of two fork needles when sliding to drive the two fork needles to move simultaneously. It should be noted that when two needle selections with the same number of segments are set in the needle groove, the advantage of using one needle selection is to reduce the installation difficulty and labor cost, and the cut-off part of the spacer can reduce the material cost. However, the needle selection is supported and stuck in the needle groove in a bent state, and the thickness of the needle selection becomes larger, increasing the elastic force and the resistance when moving in the needle groove, and increasing the wear of the cams on the mountain plate. Therefore, when actually selecting the structural form of the needle selection, it can be selected from the two methods according to the actual situation.

[0035] It should also be noted that, as shown in Figure 7 In this solution, the needle selections in the needle groove are arranged according to the number of segments. For example, for an 8-segment needle selection, the needle selections are divided into 8 according to the different positions of the pressing cams 73 between the two pushing cams 71 and 72 set, and the 8 needle selections are in a group and arranged in sequence. In this example, if two fork needles are set in the same needle groove, in order to maintain the synchronous actuation of the two fork needles, two needle selections with the same number of segments and two needle selections with the same pressing cam positions are set in one needle groove, and the two needle selections are separated by the spacer 3.

[0036] This application solution also discloses a mountain plate structure, specifically as shown in Figure 9 It includes a triangular base plate S6 and a sharp mountain S1, a purl guide block S2, a middle mountain guide block S3, a disc mountain S4 arranged on the triangular base plate S6 from top to bottom, and two working positions arranged up and down. The two working positions respectively drive the two needle groups in the needle groove to act independently. The distance between the sharp mountain S1 and the purl guide block S2 forms a purl needle path, the middle of the middle mountain guide block S3 is a knitting needle path, and the disc mountain S4 controls the loop transfer and needle grafting needle paths.

[0037] The working position S5 includes a knitting pressing piece S55, a left needle grafting pressing piece S52, a loop transfer pressing piece S53, a right needle grafting pressing piece S54, and a non-knitting pressing piece S51 that can protrude from or retract into the triangular base plate S6 under the drive of power; the knitting pressing piece S55 is above the non-knitting pressing piece S51, and the left needle grafting pressing piece S52, the loop transfer pressing piece S53, and the right needle grafting pressing piece S54 are arranged in sequence from left to right and are located between the knitting pressing piece S55 and the non-knitting pressing piece S51.

[0038] It should be noted that in this solution, for the convenience of distinction, Figure 9The two sets of working positions in it are defined as the 1# working position and the 2# working position according to the upper and lower positions. Among them, the 1# working position is in the upper part and is used to control the knitting needle group with long fork needles, while the 2# working position is in the lower part and is used to control the working position with short fork needles.

[0039] In addition, this solution also discloses a computerized flat knitting machine, including 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 is located above the needle plate base. The needle plate base has two inclined surfaces arranged symmetrically front and back. A double working position needle plate structure 10 is installed on both the front and back inclined surfaces of the needle plate base. The machine head includes a mountain plate structure 20. When knitting, the reciprocating machine head drives the mountain plate structure 20 to drive the two sets of knitting needle groups in the double working position needle plate structure 10 to act to complete the knitting action.

[0040] It should be noted that this solution uses the computerized flat knitting machine disclosed above to realize the control of the state of the knitting needle group during the knitting process.

[0041] Specifically, the knitting methods include purl, knitting, tuck, grafting, tight purl, tight knitting and no knitting.

[0042] It is set that the machine head has two working positions. Among them, the working position located above is the 1# working position, and the working position located below is the 2# working position. The two sets of knitting needle groups in the needle grooves are defined as the knitting needle group L and the knitting needle group R according to the left and right distribution. The knitting needle group L is controlled by the 1# working position, and the knitting needle group R is controlled by the 2# working position; the long fork needle and the short fork needle can be in three state positions under the pushing action of needle selection. The three state positions are the B state position, the H state position and the A state position from top to bottom in turn; among them, the A state position corresponds to the knitting presser, the H state position corresponds to the left grafting presser, the purl presser and the right grafting presser, and the B state position corresponds to the no-knitting presser; (1). When knitting, as Figure 10 shown, under the pushing action of the mountain plate structure in the machine head, the needle selection pushes the long fork needle and the short fork needle up to the A state position at the same time; The knitting presser at the A position can move up and down telescopically, and the knitting presser in the 1# working position and the knitting presser in the 2# working position act in the opposite direction, that is, when one presser extends, the other retracts. When the knitting needle group reaches the working position, one set of knitting needle groups is pressed down by the knitting presser to be in a state of not protruding the needle, and the other group is not pressed down and normally protrudes the needle. When knitting, the tuck guide block retracts, and the heel Ⅳ of the long needle enters the knitting needle path of the middle mountain guide block to perform the knitting action.

[0043] (2). When tucking, as seen Figure 11 shown, under the pushing action of the mountain plate structure in the machine head, the needle selection pushes the long fork needle and the short fork needle up to the A state position at the same time; One set of knitting needles is in the state of not protruding needles under the pressing of the knitting pressing piece, while the other set is not pressed and protrudes needles normally. When turning the needles, the Zhongshan guide block retracts, and the long needle clock III enters the needle turning channel formed by the distance between the pointed mountain S1 and the needle turning guide block S2 to perform the needle turning action.

[0044] (3). When making a loop, as Figure 12 shown, under the pushing action of the mountain plate structure in the machine head, the long fork needle and the short fork needle are simultaneously pushed upward to the H position. The left needle connecting piece, the loop pressing piece, and the right needle connecting piece at the H position can all move up and down telescopically. When making a loop, in one working position, the left needle connecting piece and the right needle connecting piece are in the retracted state, and the loop pressing piece is in the extended state. In the other working position, the left needle connecting piece, the loop pressing piece, and the needle connecting piece are all in the extended state, that is, it functions the same as the knitting pressing piece pressing down the knitting needle group to achieve no needle protruding. The long needle clock IV of the knitting needle group that protrudes needles travels along the needle channel formed by the Zhongshan guide block and the dish mountain. When the fork needle reaches the position of the loop pressing piece, it is pressed down by the loop pressing piece, so that the long needle clock IV sinks into the inserting surface and is not carried away by the knitting needle channel, and then completes the loop-making action along the loop-making trajectory.

[0045] (4). When making a needle connection, as Figure 13 shown, under the pushing action of the mountain plate structure in the machine head, the long fork needle and the short fork needle are simultaneously pushed upward to the H position; At this time, in one working position, the left needle connecting piece is in the extended state, and the loop pressing piece and the right needle connecting piece are in the retracted state. In the other set of working positions, the left needle connecting piece, the loop pressing piece, and the needle connecting piece are all in the extended state, that is, it functions the same as the knitting pressing piece pressing down the knitting needle group to achieve no needle protruding. The knitting needle group that protrudes needles is first pressed down by the left needle connecting piece, and then the long needle clock IV enters the inside of the dish mountain. Since the loop pressing piece and the right needle connecting piece are both in the retracted state, the long needle clock IV extends out of the inserting surface and drives the long needle clock IV to travel along the internal trajectory of the dish mountain. When making a right needle connection, the needle turning guide block is in the extended state, driving the long needle clock III to act, and cooperating with the internal trajectory of the dish mountain to complete the right needle connection action. When making a left needle connection, the machine head travels in the opposite direction. In one working position, the left needle connecting piece and the loop pressing piece are both in the retracted state, and the right needle connecting triangle is in the extended state. The needle connection trajectory is the same as the right needle connection trajectory.

[0046] (5). When not knitting, as Figure 14 shown, the long fork needle and the short fork needle are in the B position. The non-knitting pressing pieces in the 1# working position and the 2# working position both press the needles, pressing both knitting needle groups into the needle grooves to prevent needles from protruding.

[0047] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-working-position needle plate structure (10) for a computerized flat knitting machine, characterized in that: The invention comprises a needle plate (1), wherein a plurality of inserting pieces (2) are inserted at equal intervals on the needle plate (1), and gaps are left between adjacent inserting pieces (2) to form a needle groove extending in the width direction of the needle plate (1), and two groups of knitting needles which are independently and staggeredly operated are slidably arranged in the needle groove; in addition to knitting needles (4), long needles (5), and selection needles (7), one of the two tissue needle groups comprises a long fork needle (6C), and the other tissue needle group comprises a short fork needle (6D), and the front end of the long needle (5) is rotatably engaged with the knitting needle (4) to drive the knitting needle (4) to rotate. ) is extended and retracted in the slide groove; the long fork needle (6C) and the short fork needle (6D) are respectively arranged on the upper rear part of the long needle (5) matched therewith, and the needle selection (7) is arranged on the upper part of the corresponding long fork needle (6C) and the short fork needle (6D); the long fork needle (6C) and the short fork needle (6D) are of the same length, and the long fork needle (6C) is provided with a needle butt I (61) which extends out of the needle groove when the needle is moved, and the short fork needle (6D) is provided with a needle butt II (62), and the needle butt I (61) and the needle butt II (62) are staggered front and back to correspond to different working positions in the mountain plate structure.

2. A double-working-position needle plate structure (10) for a computerized flat knitting machine as claimed in claim 1, characterized in that: The long needle (5) comprises a body (51), the front end of the body (51) is provided with a needle head (52) which can be rotatably engaged in the knitting needle (4), the rear end of the body (51) is connected with a spring needle tail (53), the upper edge of the body (51) is provided with a needle butt III (54) and a needle butt IV (55) which extend out of the needle groove when the needle is moved, and the body (51) is horizontally arched upward so that the upper edge of the body (51) is flush with the upper edge of the insert (2) when the needle is moved.

3. A double-working-position needle plate structure (10) for a computerized flat knitting machine as claimed in claim 3, characterized in that: An extension piece (56) extending backward is arranged behind the needle butt IV (55), and the extension piece (56) is located above the spring needle tail (53), and the upper edge of the extension piece (56) is flush with the upper edge of the insert piece (2) when the needle is moved.

4. A double-working-position needle plate structure (10) for a computerized flat knitting machine as claimed in claim 4, 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 when the needle plate (1) is pulled.

5. A double-working-position needle plate structure (10) for a computerized flat knitting machine as claimed in claim 5, characterized in that: The spacer (3) leaves an avoidance area (31) in the sliding area of ​​the two selection needles (7), and the two selection needles (7) are combined into one. The combined selection needle (7) is still slidably arranged in the needle groove and is connected with the long fork needle (6C) and the short fork needle (6D) at the same time.

6. A mountain plate structure (20) adapted to the double-working position needle plate structure (10) as claimed in claims 1 to 5, characterized in that: It comprises a triangular bottom plate (S6), and a sharp top plate (S1), a turning needle guide block (S2), a middle top plate guide block (S3), a disc top plate (S4) arranged on the triangular bottom plate (S6) from top to bottom, and two working positions arranged in an upper and lower manner, wherein the two working positions correspond to driving two tissue needle groups in the needle groove to act independently; The working position (S5) includes a weaving pressing sheet (S55), a left needle pressing sheet (S52), a tuck pressing sheet (S53), a right needle pressing sheet (S54) and a non-woven pressing sheet (S51) which can protrude from or retract into the triangular base plate (S6) under power drive; the weaving pressing sheet (S55) is located above the non-woven pressing sheet (S51), and the left needle pressing sheet (S52), the tuck pressing sheet (S53) and the right needle pressing sheet (S54) are arranged in sequence from left to right and are located between the weaving pressing sheet (S55) and the non-woven pressing sheet (S51).

7. A computerized flat knitting machine, comprising a frame, a machine head and a needle plate base, wherein the needle plate base is mounted on the frame, the machine head is mounted on the frame and is located above the needle plate base, and the needle plate base has two inclined surfaces arranged symmetrically in front and back, characterized in that: The double-working-position needle plate structure (10) described in claims 1 to 5 is installed on the front and rear inclined surfaces of the needle plate base, and the machine head includes the mountain plate structure (20) described in claim 6. During weaving, the reciprocating machine head drives the mountain plate structure (20) to drive the two tissue needle groups in the double-working-position needle plate structure (10) to move to complete the weaving action.

8. A knitting method, implemented by the computerized flat knitting machine according to claim 7, comprising: Tuck, weave, transfer, stitch, tight tuck, tight weave and no weave; Setting: The machine head has two working positions, of which the upper working position is the 1# working position, and the lower working position is the 2# working position. The two tissue needle groups in the needle slot are defined as the knitting needle group L and the knitting needle group R according to the left and right distribution. The knitting needle group L is controlled by the 1# working position, and the knitting needle group R is controlled by the 2# working position; the long fork needle and the short fork needle can be in three state positions under the push action of the needle selection, and the three state positions are B state position, H state position and A state position from top to bottom; among them, The A status bit corresponds to the knitting presser, the H status bit corresponds to the left needle presser, the tuck presser and the right needle presser, and the B status bit corresponds to the non-woven presser; (i) When knitting, the needle selection is pushed by the mountain plate structure in the machine head, and the long fork needle and the short fork needle are pushed upward to the A state position at the same time; The knitting pressing plate at position A can be moved up and down, and the knitting pressing plate in the 1# working position and the knitting pressing plate in the 2# working position move in opposite directions, that is, when one pressing plate is extended, the other is retracted. When the knitting needle group reaches the working position, one group of tissue needles is pressed down by the knitting pressing plate and is in a state of not producing needles, while the other group is not pressed down and produces needles normally. During knitting, the needle transfer guide block is retracted, and the needle butt IV of the long needle enters the knitting needle path of the middle guide block to perform knitting action; (2) When the needle is turned over, the needle selection is pushed by the mountain plate structure in the machine head, and the long fork needle and the short fork needle are pushed upward to the A state position at the same time; One group of tissue needles is pressed down by the knitting pressing plate and is in a state of not producing needles, while the other group is not pressed down and produces needles normally. When turning the needle, the middle needle guide block retracts, and the long needle needle clock III enters the turning needle channel formed by the distance between the tip needle S1 and the turning needle guide block S2 to perform the turning needle action; (III) When performing tuck, the needle selection is pushed by the mountain plate structure in the machine head, and the long fork needle and the short fork needle are pushed upward to the H state position at the same time. The left needle pressing plate, the tuck pressing plate and the right needle pressing plate in the H position can all move up and down. When tuck, the left needle pressing plate and the right needle pressing plate in one of the working positions are in a retracted state, and the tuck pressing plate is in an extended state. The left needle pressing plate, the tuck pressing plate and the needle pressing plate in the other working position are all in an extended state, that is, the effect is the same as the knitting pressing plate pressing down the knitting needle group to achieve no needle output. The long needle needle clock IV of the needle group for outputting needles travels along the needle path formed by the middle mountain guide block and the disc mountain. When the fork needle reaches the tuck pressing plate position, it is pressed down by the tuck pressing plate, so that the long needle needle clock IV sinks into the insert surface without being taken away by the knitting needle path, and then the tuck action is completed along the tuck track; (iv) When the needle is connected, the needle selection is pushed by the mountain plate structure in the machine head, and the long fork needle and the short fork needle are pushed upward to the H state position at the same time; At this time, the left needle pressing plate of one of the working positions is in an extended state, and the tuck pressing plate and the right needle pressing plate are in a retracted state. The left needle pressing plate, tuck pressing plate and needle pressing plate of the other working position are all in an extended state, that is, the function is the same as the knitting pressing plate pressing down the knitting needle group to achieve no needle output. The needle group of the needle output is first pressed down by the left needle pressing plate, and then the long needle clock IV enters the inside of the dish mountain. Since the tuck pressing plate and the right needle pressing plate are both in a retracted state, the long needle clock IV extends out of the insert surface and drives the long needle clock IV to move along the internal trajectory of the dish mountain. When connecting the needle, the needle guide block is in an extended state, driving the long needle clock III to move, and cooperate with the internal trajectory of the dish mountain to complete the right needle connection action. When connecting the left needle, the machine head moves in the opposite direction. The left needle pressing plate and the tuck pressing plate of one of the working positions are all in a retracted state, and the right needle triangle is in an extended state, and the needle connection trajectory is the same as the right needle connection trajectory. (V) When not knitting, the long fork needle and the short fork needle are in the B state position, and the non-knitting pressing plates in the 1# working position and the 2# working position both press the needles, pressing the two knitting needle groups into the needle groove without releasing the needles.

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