A sinker control method

Abstract

The present invention relates to the field of flat knitting machines, and particularly to a sinker control method, which controls the swing of the sinker heel by moving a fixed base plate, wherein when the sinker heel is located at the initial position of the fixed base plate, the line pressing portion of the sinker is lifted to the highest position, does not perform the coil pressing action, and ensures normal operation when the swing table shifts the coil; when the sinker heel is located at the needle starting position of the fixed base plate, the line pressing portion of the sinker presses the coil, and at the same time ensures normal operation when the swing table shifts the coil; when the sinker heel is located at the avoidance position of the fixed base plate, the line pressing portion of the sinker is in an avoidance state, and does not perform the coil pressing action; when the sinker heel is located at the adjustment interval position of the fixed base plate, depending on the depth of the line pressing portion of the sinker pressing the coil, the coil shifting action may be performed or not; at the same time, the sinker heel can continuously move along the initial position, needle starting position, avoidance position, and adjustment interval position. After adopting the above scheme, the working efficiency of the sinker can be improved.

Description

Technical Field

[0001] The present invention relates to the field of flat knitting machines, and in particular to a sinker control method. Background Art

[0002] A computerized flat knitting machine is a double-needle plate latch needle weft knitting machine. Its cam system acts like a set of flat cams. The needle's foot enters the cam's groove, moving the cam system, forcing the needle to perform a regular up-and-down motion within the needle groove. Through the action of the needle hook and needle latch, the yarn is woven into a knitted fabric. As the needle rises, the yarn loop gradually exits the hook, opening the needle latch and withdrawing it to hang on the needle bar. As the needle descends, the hook grabs the newly placed yarn and pulls it into a coil, while the existing coil escapes the hook. The new coil passes through the old coil and connects in series. The numerous coils formed by knitting are connected to form a knitted fabric.

[0003] The sinker is arranged next to each knitting needle. The sinker is set on the spacer and isolated from each other by the spacer. The sinker controls the old coil and new yarn on each knitting needle, assists the knitting needle to withdraw the coil, and can be rotated open relative to the needle bed mouth (weaving mouth) to make room for coil formation.

[0004] For example, in the prior patent CN116219619A (reference document 1), the needle push triangle system of the knitting machine disclosed is the sinker control device, and the reference Figure 6 As shown, it is arranged on a general weaving cam system, acts on the heel of the sinker, and pushes the sinker to swing.

[0005] However, the above-mentioned comparative document 1 uses multiple sets of push needles and connecting rods for a triangle knitting system, while the existing flat knitting machines more commonly use 2-4 sets of triangle systems. If the above-mentioned sinker control method is adopted, it will be too complicated and increase the burden on the machine head.

[0006] Therefore, the inventors conducted further research and developed a sinker control method, which resulted in the present invention. Summary of the Invention

[0007] The object of the present invention is to provide a sinker control method, which can improve the working efficiency of the sinker.

[0008] In order to achieve the above object, the technical solution of the present invention is as follows:

[0009] A sinker control method controls the swing of the sinker heel by moving a fixed bottom plate, wherein:

[0010] When the heel of the sinker is at the initial position of the fixed bottom plate, the wire pressing part of the sinker is lifted to the highest position and does not press the wire coil, thus ensuring the normal operation of the shaking table when the coil is moved;

[0011] When the heel of the sinker is located at the needle starting position of the fixed bottom plate, the wire pressing part of the sinker presses the coil, and at the same time ensures the normal operation of the shaking table when transferring the coil;

[0012] When the heel of the sinker is located at the avoidance position of the fixed bottom plate, the wire pressing part of the sinker is in the avoidance state and does not perform the wire pressing action;

[0013] When the sinker heel is located in the adjustment range of the fixed base plate, the sinker heel is adjusted within this range according to the size of the knitting loop, thereby changing the depth at which the thread pressing part presses the loop. When the sinker heel is in this range, the flat knitting machine can only perform knitting work and cannot perform loop transfer work.

[0014] At the same time, the heel of the sinker can move continuously along the above-mentioned initial position, needle starting position, avoidance position and adjustment interval position.

[0015] When the sinker is in the initial position, the thread pressing part is raised to the highest position. The initial position ensures that after each row of knitting is completed, the sinker is in this position (left and right cycle) to ensure that the shaking table can work normally when the circle is moved;

[0016] When the sinker is in the needle-raising position, when you start knitting, the position of the thread pressing part (corresponding to the position of the needle-raising triangle) slightly presses the coil to prevent the coil from rising with the knitting needle. It is also the starting position for dynamic adjustment of loop or tuck knitting, and it is also the position that can ensure the normal operation of the shaking table.

[0017] When the sinker is in the avoidance position, the needle is hooking and bending the yarn, and the thread pressing part of the sinker is in the avoidance state to prevent the yarn from being pressed and wound on the pressing part surface, affecting the looping effect;

[0018] When the sinker is in the adjustment range, it can be dynamically adjusted, and the thread pressing part adjusts the thread pressing depth according to the size of the braided coil.

[0019] Furthermore, the initial position, the needle starting position, the avoidance position, and the adjustment interval position continuously constitute a guide groove, and the guide groove is symmetrically arranged on the fixed base plate.

[0020] Furthermore, the initial position and the avoidance position are at the same height, that is, when the heel of the sinker is at these two positions, the line pressing part of the sinker does not act on the coil; the needle starting position is between the initial position and the avoidance position and is relatively high in position, the adjustment interval position is located in the middle of the fixed bottom plate, and the adjustment interval position is provided with an adjustment block that can move up and down, and the depth of the sinker line pressing part pressing the coil is selected by changing the position of the adjustment block.

[0021] Furthermore, a connecting rod is provided on the other side of the fixed base plate, which can move relative to the fixed base plate, and a horizontal driving groove is provided on the connecting rod. There is an upward protrusion in the middle of the driving groove, and two rolling members are also provided in the driving groove. The rolling members are respectively linked to the two adjustment blocks. When the connecting rod moves, the rolling member can be lifted by the protrusion, and the corresponding adjustment block moves upward in the guide groove.

[0022] By driving the connecting rod to move laterally, the rolling element can be moved to the protrusion, thereby selecting the position of the adjustment block in the guide groove, thereby selectively changing the heel position of the sinker, thereby changing the pressure depth of the sinker.

[0023] Furthermore, the guide groove is from left to center or from right to center, with the groove tops of different heights of each section as the standard: L1 section zero position, L2 section middle position, L3 section zero position, L4 section middle position, L5 section high position, L6 section middle position, and the sections of different heights are connected by continuous oblique edges.

[0024] L1 corresponds to the initial position, L2 corresponds to the needle starting position, L3 corresponds to the avoidance position, L5 corresponds to the adjustment interval position, L4 is the transition between the avoidance position and the adjustment interval position, and L6 is the transition between two adjustment interval positions;

[0025] The zero position corresponds to the sinker not participating in the coil control; the middle position corresponds to the sinker participating in the control but not deeply pressing the coil (lightly pressing). At the zero and middle positions, the front and rear needle beds can perform the coil transfer operation without worrying about the sinker colliding; the high position of the guide groove corresponds to the sinker deeply participating in the coil pressing, reaching the maximum bending depth (that is, the maximum swing amplitude).

[0026] Furthermore, the rolling element and the adjusting block are connected via respective mounting seats, and the mounting seats are arranged in a sliding groove that passes through the fixed base plate.

[0027] Furthermore, the sliding groove is distributed vertically or obliquely relative to the guiding groove.

[0028] Furthermore, a toothed edge is provided on the bottom edge of the connecting rod corresponding to the protrusion, and the toothed edge is linked with the gear, and the gear is driven by the motor to move the connecting rod relative to the fixed base plate.

[0029] Since the guide grooves are symmetrically distributed and the protrusion is located in the middle of the driving groove, the gear of the driving connecting rod is set in the middle, which has the highest stability and is also convenient for debugging.

[0030] Furthermore, when one adjusting block rises within the adjusting interval, the other adjusting block remains stationary.

[0031] After adopting the above scheme, the present invention has the following advantages compared with the prior art:

[0032] The sinker control method has a simple structure and stable operation, and can also ensure that the sinkers do not collide with each other when the ring is moved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is one of the schematic diagrams for fixing the base plate;

[0034] Figure 2 This is the second schematic diagram of the fixed base plate (the side where the drive slot is located);

[0035] Figure 3 This is the third diagram of the fixed base plate (the side where the guide groove is located);

[0036] Figure 4 This is a schematic diagram of the correspondence between the sinker needle butt and the guide groove;

[0037] Figure 5 This is a schematic diagram of the sinker corresponding to the initial position of the guide groove;

[0038] Figure 6 This is a schematic diagram of the sinker corresponding to the guide groove needle starting position;

[0039] Figure 7 This is a schematic diagram of the sinker corresponding to the guide groove avoidance position;

[0040] Figure 8 This is a schematic diagram of the sinker corresponding to the guide groove adjustment interval position;

[0041] Label Description

[0042] Fixed base plate 1, guide groove 2, adjustment block 21, initial position 22, needle starting position 23,

[0043] Avoidance position 24, adjustment interval position 25, connecting rod 3, gear 31, motor 32,

[0044] Driving groove 4, rolling element 41, mounting seat 5, sinker 6, wire pressing part 61, and heel 62. DETAILED DESCRIPTION

[0045] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0046] A sinker control method mainly guides the sinker heel by providing a continuous guide groove on a fixed bottom plate, thereby achieving control of the sinker.

[0047] like Figure 1 As shown, refer to Figure 3 The guide groove 2 is a structure that penetrates the fixed bottom plate 1 and has different heights. The entrances at both ends are larger and then gradually shrink to facilitate the introduction of the sinker heel 62.

[0048] Based on the midline of the guide groove 2, it is symmetrically arranged on both sides. Therefore, according to the height of each section, it can be divided into L1 section zero position, L2 section mid position, L3 section zero position, L4 section mid position, L5 section high position, L6 section mid position (refer to Figure 3 ), wherein, in the middle L5-L6 section (L6 mainly plays a transition role), there are two adjustment blocks 21, and the top of the adjustment block 21 is flush with the lower bottom edge of the L2, L4 and L6 sections; the above-mentioned zero position, middle position and high position respectively correspond to: the zero position corresponds to the sinker not participating in the coil control; the middle position corresponds to the sinker participating in the control but not deeply pressing the coil, at this time the front and rear needle beds can perform the coil transfer operation without worrying about the sinker causing collision; the high position of the guide groove 2 corresponds to the sinker deeply participating in the coil pressing, which can reach the maximum pressing depth.

[0049] like Figure 2 As shown, the other side of the fixed base plate 1 is provided with a movable groove for the connecting rod 3 to move horizontally. The bottom of the connecting rod 3 is provided with a gear 31 in the middle, which is driven by a motor 32. The connecting rod 3 is provided with a drive groove 4. The drive groove 4 is a structure with a central protrusion and two transversely arranged structures on both sides. It is also symmetrical about the center of the protrusion. Two rolling elements 41 are installed in the drive groove 4, corresponding to the adjustment block 21. In this embodiment, two oblique and through-type sliding grooves are provided on the fixed base plate 1. The sliding grooves are provided with mounting seats 5. The mounting seats 5 connect the rolling elements 41 and the adjustment block 21 respectively. When the connecting rod 3 is pushed horizontally in the movable groove, the relative height of the rolling elements 41 changes due to the action of the drive groove 4, which in turn changes the height of the adjustment block 21 in the guide groove 2. When one of the rolling elements 41 is pushed to the highest point of the protrusion, the corresponding adjustment block 21 rises in the guide groove 2, causing the sinker to become deeply pressed when passing through the L5 section.

[0050] refer to Figure 4 The needle beds on both sides of the flat knitting machine are provided with sinkers 6 at the weaving mouth. The position corresponding to the heel of the sinker 6 is the guide groove 2 of the fixed bottom plate 1. Figure 4 The fixed base plate 1 in the figure is only a schematic diagram. In fact, the entire fixed base plate is set perpendicular to the picture. When the head moves back and forth, the sinker heel moves back and forth in the guide groove.

[0051] Figure 5 The sinker is in the initial position 22 in the guide groove 2, which is the zero position ( Figure 5-8 The fixed base shown in the figure is only a schematic diagram and does not constitute a relationship of size, relative position, etc.).

[0052] like Figure 6As shown, in this state, the heel of the sinker is in the middle position in the guide groove 2 (also corresponding to the needle starting position 23), that is, the sinker has participated in the work, but has not yet reached the maximum pressing depth. The needle beds on both sides can be shaken to move the rings, and the sinkers will not interfere with each other.

[0053] like Figure 7 As shown, when the sinker is in the avoidance position 24, its state is the same as Figure 5 Similarly, when the corresponding knitting needle is hooking or bending the yarn, the thread pressing part of the sinker is in an avoidance state to prevent the yarn from being pressed and wound around the pressing surface, affecting the looping effect.

[0054] like Figure 8 As shown, the pressing portion 61 of the left sinker is in the maximum pressing state, i.e., the state when the adjusting block is raised in L5. The right sinker is in a slight pressing state, i.e., the state when it is in the middle position. By adjusting the upward and downward movement of the adjusting block in the adjustment interval 25, the size of the knitting loop can be adjusted according to the required size.

[0055] The above are only specific embodiments of the present invention. At the same time, all words such as "upper, lower, left, right, middle" involved in the present invention are for reference only and are not absolute limitations. Any non-substantial changes made using the present invention shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A sinker control method, characterized in that: The swing of the sinker heel is controlled by the movement of a fixed bottom plate, wherein: When the heel of the sinker is at the initial position of the fixed bottom plate, the wire pressing part of the sinker is lifted to the highest position and does not press the wire coil, thus ensuring the normal operation of the shaking table when the coil is moved; When the heel of the sinker is located at the needle starting position of the fixed bottom plate, the wire pressing part of the sinker presses the coil, and at the same time ensures the normal operation of the shaking table when transferring the coil; When the heel of the sinker is located at the avoidance position of the fixed bottom plate, the wire pressing part of the sinker is in the avoidance state and does not perform the wire pressing action; When the sinker heel is located in the adjustment range of the fixed base plate, the sinker heel is adjusted within this range according to the size of the knitting loop, thereby changing the depth at which the thread pressing part presses the loop. When the sinker heel is in this range, the flat knitting machine can only perform knitting work and cannot perform loop transfer work. At the same time, the heel of the sinker can move continuously along the above-mentioned initial position, needle starting position, avoidance position and adjustment interval position; The initial position, needle starting position, avoidance position, and adjustment interval position continuously form a guide groove, which is symmetrically arranged on the fixed base plate. The guide groove runs from left to center or from right to center, with the top of each section at different heights as the standard: L1 section zero position, L2 section middle position, L3 section zero position, L4 section middle position, L5 section high position, L6 section middle position, and the sections of different heights are connected by continuous bevel edges. Among them, the initial position and the avoidance position are at the same height, that is, when the heel of the sinker is at these two positions, the line-pressing part of the sinker does not act on the coil; the needle starting position is between the initial position and the avoidance position and is relatively high in position, the adjustment interval position is located in the middle of the fixed bottom plate, and the adjustment interval position is provided with an adjustment block that can move up and down. By changing the position of the adjustment block, the depth of the sinker's line-pressing part pressing the coil is selected.

2. A sinker control method according to claim 1, characterized in that: A connecting rod is provided on the other side of the fixed base plate. The connecting rod can move relative to the fixed base plate, and a horizontal driving groove is provided on the connecting rod. There is an upward protrusion in the middle of the driving groove. Two rolling members are also provided in the driving groove. The rolling members are respectively linked to the two adjustment blocks. When the connecting rod moves, the rolling member can be lifted by the protrusion, and the corresponding adjustment block moves upward in the guide groove.

3. A sinker control method according to claim 1, characterized in that: The rolling element and the adjusting block are connected through respective mounting seats, and the mounting seats are arranged in a sliding groove that passes through the fixed base plate.

4. A sinker control method according to claim 3, characterized in that: The slide groove is distributed vertically or obliquely relative to the guide groove.

5. A sinker control method according to claim 2, characterized in that: The bottom edge of the connecting rod corresponding to the protrusion is provided with a tooth edge, and the tooth edge is linked with the gear. The gear is driven by the motor to move the connecting rod relative to the fixed base plate.

6. A sinker control method according to claim 1, characterized in that: When one regulating block rises within the regulating interval, the other regulating block remains stationary.

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