Flat knitting machine and terry knitting method

Abstract

A tuck knitting machine and a tuck knitting method that enable tuck knitting even when using a knitting needle that does not have a hook for catching a knitting thread. A capture upper and lower assembly (10) drives a sinker (4) in a manner that raises the front end of the sinker (4) in a tooth (1a) to capture a base thread supplied from a supply port and pull it down below the tooth (1a) between a base thread hook (4a) and a tuck thread hook (4b). The solid line indicates a state in which the sinker (4) is driven in a manner that captures the base thread. The dashed line indicates a state in which the front end of the sinker (4) exits between the knitting needles (3). The double dashed line indicates a state in which the front end of the sinker (4) temporarily exits between the knitting needles (3) and re-enters after the sinker (4) distinguishes between a base thread (8a) and a tuck thread (8b) and forms a loop by the pull of a needle hook (3a). Since the base thread (8a) can be captured by the sinker (4) and pulled down, tuck knitting is possible even when using a knitting needle (3) that does not have a hook for catching a knitting thread.

Description

Technical Field

[0001] This invention relates to a flat knitting machine and a method for terry knitting, which performs terry knitting using a base yarn and terry yarn. Background Technology

[0002] Traditionally, in flat knitting machines performing terry knitting, the needle bed, facing the toothed opening at the front end along the length direction, supplies the bobbin thread from above and the terry yarn from behind to the knitting needles arranged parallel along the length direction. The needle bed houses the knitting needles in needle slots arranged parallel along the length direction, tilted so that the side facing the toothed opening is higher and the side facing away from the toothed opening is lower. The terry knitting needles are latch needles with the needle hook at the front end of the needle hook when the needle latch is open and closed in the needle slot, and a yarn-locking hook is provided on the inner edge side where the needle latch and the needle hook face each other. During terry knitting, the terry knitting needles are pushed as deeply as possible into the toothed opening while rising, and then withdrawn while descending, locking the bobbin thread onto the yarn-locking hook. Between the terry knitting needles, the front end of the sinker for terry knitting moves forward and backward. The front end of the sinker for terry knitting has a terry yarn catcher that locks the terry yarn upward and a bobbin thread catcher that locks the bobbin thread downward. A terry cloth is formed by separating the bobbin thread and the terry yarn at the front end of a sinker between the knitting needles. A terry knitting machine that performs this terry knitting method can make a terry arc by making the sinker arc formed by the terry yarn longer than the sinker arc formed by the bobbin thread (see, for example, Patent Document 1).

[0003] The terry knit gloves disclosed in Patent Document 1 are entirely terry knitted from the fingertips to the cuff. Elastic yarn can be inserted into the cuff via tuck loops, and the knitting continues with the terry loops extending inwards. Such gloves can be coated with latex or similar materials to provide waterproofing and warmth, or use aromatic polyamide fibers as the terry yarn, with the terry loops on the outside to provide cut resistance and heat resistance. Terry knitted fabric can also be used to make socks; for example, by making the terry loops on the inside, it can provide warmth.

[0004] Prior technology literature

[0005] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 61-20668 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] The terry knitting method described in Patent Document 1 requires a terry knitting needle with a yarn-locking hook on the inner edge of the needle latch and a sinker for terry knitting that can distinguish between the bobbin thread and the terry yarn at the front end between the needle and the knitting needle. Although the yarn-locking hook increases the manufacturing cost of the knitting needle by being placed on the needle latch, it is not necessary in plain knitting, rib knitting, etc., which are more commonly used in flat knitting machines.

[0009] The purpose of this invention is to provide a terry knitting machine and a terry knitting method that can perform terry knitting even when using knitting needles without a knitting yarn retainer hook.

[0010] The means to solve the problem

[0011] This invention relates to a flat knitting machine for terry loop knitting, comprising a needle bed, knitting needles, a yarn feeder, a sinker, and a sinker advance / retract mechanism. The needle bed is generally rectangular, with needle grooves arranged parallel to the short side along its length. One side of the long side is adjacent to the tooth opening. The needle grooves are inclined such that the side facing the tooth opening is higher, and the side facing away from the tooth opening is lower. The knitting needles have needle hooks at their front ends, and the needle hooks are respectively housed in the needle grooves on the side facing the tooth opening, allowing the needle hooks to advance and retract within the tooth opening. Loops are knitted by knitting yarn supplied from above the tooth opening. The yarn feeder supplies both bobbin thread and terry yarn as knitting yarn, with the bobbin thread first and the terry yarn last, at intervals to the knitting needles. The sinker has a front end with a bobbin thread hook at the bottom and a terry yarn hook at the top, and can advance and retract within the knitting bed. Between knitting needles, when forming a loop, the bobbin thread pulled in by the needle hook of the knitting needle is hung on the bobbin thread hanger to form a bobbin thread sinker arc, and the terry yarn is hung on the terry yarn hanger to form a terry yarn sinker arc. The sinker advance and retreat mechanism drives each sinker to enter between the knitting needles by advancing and retreating its front end between the knitting needles, and distinguishes between the bobbin thread hanging on the bobbin thread hanger side and the terry yarn hanging on the terry yarn hanger side. The sinker advance and retreat mechanism is characterized by including a capture upper and lower assembly. Before the separation of the bobbin thread and the terry yarn, the capture upper and lower assembly raises the front end of the sinker in the toothed opening, and drives the sinker to pull down below the toothed opening by capturing the bobbin thread supplied from the yarn supply opening between the bobbin thread hanger and the terry yarn hanger.

[0012] Furthermore, in this invention, the upper and lower components for capturing are characterized in that they can be switched to drive the settling plate within a range including the weaving width, and not drive the settling plate outside this range.

[0013] Furthermore, in this invention, the upper and lower components for capturing switch the driving of the settling plates for each group of multiple settling plates that are adjacent in the length direction.

[0014] Furthermore, in this invention, the capturing upper and lower assembly is characterized by including an ascending triangle that causes the settling plate to rise above the toothed opening.

[0015] Furthermore, in this invention, the rising triangle is characterized in that it is disposed on the moving path of the sinker plate between the knitting needles.

[0016] Furthermore, in this invention, the above-mentioned capturing upper and lower components include a selection pin, which is disposed between the sinking plate and the moving path. The selection pin can be selected along the moving path to a position where the sinking plate passes through the rising triangle to raise the front end of the sinking plate in the toothed opening; and a position where the sinking plate does not pass through the rising triangle and does not raise the front end of the sinking plate in the toothed opening.

[0017] Furthermore, in this invention, the method of switching the yarn supply port of the bobbin and the yarn supply port of the terry yarn by leaving the gap in the manner of bobbin first and terry yarn later, or by narrowing the gap between the yarn supply ports and hanging the bobbin and terry yarn on the bobbin hook of the sinker to switch the yarn supply port of the bobbin and the yarn supply port of the terry yarn, can switch between terry weaving and plain weaving with bobbin and terry yarn as weaving yarn.

[0018] Furthermore, in this invention, the aforementioned front end of the sinker has a pushing portion, which, when entering between the knitting needles, can push the knitting thread into the toothed opening at a position below the hook that serves as the bottom thread. The sinker advance and retreat mechanism is driven by retracting the sinker from the toothed opening and re-entering the toothed opening after the hook of the knitting needle, which has received the knitting thread supply, has withdrawn from the toothed opening and then re-entered the toothed opening to set the coil density during the coil formation.

[0019] Furthermore, this invention is a terry knitting method, wherein the needle bed is generally rectangular, with needle grooves arranged parallel to the short side along its length, one side of which is adjacent to the tooth opening. The needle grooves are inclined such that they are higher on the side facing the tooth opening and lower when away from the tooth opening. Knitting needles with hooks at their front ends are respectively housed in the needle grooves of the needle bed, with their front ends facing the tooth opening. The hooks move in and out of the tooth opening. Bore yarn and terry yarn are supplied separately from above the tooth opening, with the bore yarn first and the terry yarn last, spaced apart. The method includes a bore yarn hook at the bottom. The sinker at the front end of the upper part of the terry yarn hanger moves between the knitting needles to separate the supplied bobbin thread and terry yarn. When forming a loop, the bobbin thread pulled in by the knitting needle hook is hung on the bobbin thread hanger to form a sinker arc of the bobbin thread, and the terry yarn is hung on the terry yarn hanger to form a sinker arc of the terry yarn. The characteristic of this terry knitting method is that before the bobbin thread and terry yarn are separated, the front end of the sinker rises in the toothed opening and captures the bobbin thread supplied from the yarn feeder between the bobbin thread hanger and the terry yarn hanger, pulling it down below the toothed opening.

[0020] The effects of the invention

[0021] According to the present invention, the sinker advance / retreat mechanism includes a capture assembly that, before the separation of the bobbin thread and the terry yarn, raises the front end of the sinker in the toothed opening, captures the bobbin thread supplied from the yarn feeder between the bobbin thread hook and the terry yarn hook, and pulls it down below the toothed opening. Since the bobbin thread can be separated from the terry yarn after being captured and pulled down by the sinker, terry knitting can be performed even using knitting needles without yarn-locking hooks.

[0022] Furthermore, according to the present invention, if the upper and lower components for capturing all the sinkers are driven, the knitting of one loop row will end outside the knitting width range. When changing the positions of the yarn feeder for the bobbin thread and the yarn feeder for the terry yarn, there is a risk of interference between the sinkers and the yarn feeder, which stop with the leading edge raised in the teeth. If the position of the yarn feeder is raised to avoid interference, the yarn feeding conditions to the knitting needles will worsen. Even if the drive for knitting one loop row is stopped after all the sinkers have descended, interference can be avoided, but the knitting efficiency will be reduced. This reduction in knitting efficiency can be prevented by switching to a mode that does not involve driving the sinkers by the upper and lower components for capturing outside the range including the knitting width.

[0023] Furthermore, according to the present invention, since the switching of the settling plates driven by the upper and lower components for capturing is performed on each group separated by a plurality of settling plates adjacent in the longitudinal direction, the mechanism required for selection in the case of switching each individual settling plate can be simplified.

[0024] Furthermore, according to the present invention, the sinker can be raised above the toothed opening by the rising triangle and then lowered so that the front end of the sinker can capture the bottom line.

[0025] Furthermore, according to the present invention, the rising of the front end of the sinker plate is performed by a rising triangle provided on the moving path of the sinker plate between the knitting needles, so it can be performed in a manner related to the forward and backward movement of the sinker plate.

[0026] Furthermore, according to the present invention, the action of raising the front end of the settling plate by the rising triangle can be performed by the selection plate in a manner that involves the rising triangle. Since the selection plate is disposed between the settling plate and the moving path, the position along the moving path can be selected between positions that pass through the rising triangle and positions that do not pass through it. Therefore, the selection of the selection plate can switch whether the settling plate is driven by the capture up-and-down mechanism.

[0027] Furthermore, according to the present invention, terry weaving and plain weaving can be switched in a mixed manner according to the loop row units in the loop warp direction. Even if weaving is temporarily stopped in the middle of the loop row, weaving can be switched back to terry weaving and plain weaving by changing the interval of the yarn feed.

[0028] Furthermore, according to the present invention, even if the old arc that has disengaged remains near the tooth opening, the old arc can be pushed downwards from the tooth opening by the pushing part provided at the front end of the settling plate after the front end of the settling plate is temporarily withdrawn from the tooth opening and then re-entered.

[0029] Furthermore, according to the present invention, before the separation of the bobbin thread and the terry yarn by the front end of the sinker, the front end of the sinker can be raised in the toothed opening, and the bobbin thread supplied from the yarn feeder can be caught between the bobbin thread hook and the terry yarn hook and pulled down towards the lower part of the toothed opening. Even without using a knitting needle equipped with a knitting yarn locking hook, the bobbin thread can be caught by the sinker and pulled down, and terry knitting can be performed. Attached Figure Description

[0030] Figure 1 This is a right sectional view that simplifies the structure of the upper and lower capture assembly 10 of the loop knitting machine 1, which is an embodiment 1 of the present invention, and the capture action of the bottom thread.

[0031] Figure 2 It is a simplified representation in Figure 1 The right sectional view of the state where the needle piece 14 is not selected in the upper and lower components 10.

[0032] Figure 3 It is a simplified representation in Figure 1 The right sectional view of the state of the selected needle piece 14 is captured using the upper and lower components 10.

[0033] Figure 4 It means in Figure 1A simplified top view of the trajectory and triangular configuration of the sinker 4 during terry knitting in the flat knitting machine 1.

[0034] Figure 5 It means in Figure 1 A simplified top view of the trajectory of the knitting needles 3 and the triangular configuration during terry knitting on a flat knitting machine 1 is provided.

[0035] Figure 6 It means in Figure 1 A simplified top view of the trajectory of the needle selection plate 14 and the triangular configuration during terry knitting in the flat knitting machine 1.

[0036] Figure 7 express Figure 1 The shape of the settling plate 4 is shown in the front view, top view, and right side view of the settling plate 4.

[0037] Figure 8 express Figure 1 The shape of the needle selector 14 is shown in the front view and top view of the needle selector 14.

[0038] Figure 9 It is a simplified representation in Figure 1 A right sectional view of the action of the bottom thread 8a being captured by the sinker 4 in the flat knitting machine 1 for terry weaving.

[0039] Figure 10 It is a simplified representation in Figure 1 A right sectional view of the action of separating the bottom thread 8a and the loop thread 8b by the sinker 4 in the flat knitting machine 1 for loop knitting.

[0040] Figure 11 This is a simplified right sectional view showing the structure of the upper and lower capture assembly 30 in the terry knitting machine 21, which is an embodiment 2 of the present invention. Detailed Implementation

[0041] In order to implement the invention

[0042] the following, Figures 1-10 The structure and operation of the terry knitting machine 1, which is an embodiment 1 of the present invention, are shown. Figure 11 The diagram illustrates the structure of the upper and lower capture assembly 30 of the terry knitting machine 21, which is an embodiment 2 of the present invention. In each figure, corresponding parts are indicated by the same reference numerals, and repeated descriptions are omitted. Furthermore, for ease of explanation, in the figures describing the subject, parts not shown are sometimes referred to using reference numerals shown in other figures.

[0043]

Example 1

[0044] Figure 1 The structure of the main parts of the terry knitting flat knitting machine 1, which is an embodiment 1 of the present invention, is simplified here. The terry knitting flat knitting machine 1, in... Figure 1 The illustration is omitted, but it has the following characteristics: Figure 9 and Figure 10 The needle bed 2 is as shown in the diagram. (As in...) Figure 9 and Figure 10 As shown in the diagram, the needle bed 2 faces each other at the front and back of the clamping tooth 1a, and is positioned with respect to... Figure 1 The center surface 1b of the toothed opening, as shown in the figure, is arranged in a symmetrical manner. The portion of the toothed opening 1a sandwiched between the front and rear needle beds 2, when viewed from above, is a slender rectangle in the depth direction shown in the figure. This depth direction will be referred to below as the length direction. Each needle bed 2 is approximately rectangular, with needle grooves 2a arranged side-by-side parallel to their shorter sides in the length direction, one side of which faces the toothed opening 1a. Figure 1 The knitting needles 3, as shown in the diagram, are housed in each needle groove 2a. A hook 3a is provided at the front end of each knitting needle 3. The knitting needles 3 housed in each needle groove 2a can slide by moving the hook 3a forward and backward through the toothed opening 1a. The needle grooves 2a are tilted such that they are higher on the side of the toothed opening 1a and lower when moving away from it. Figure 1 The sliding direction of the knitting needle 3 is indicated by an angle that is inclined towards the vertical direction. The knitting needle 3 is a latch needle that opens and closes the hook 3a by the latch 3b, but the knitting thread retaining hook is not provided on the latch 3b as in Patent Document 1.

[0045] The terry knitting flat knitting machine 1 has movable sinkers 4. The sinker 4 has a bobbin hook 4a, a terry yarn hook 4b, and a push-in part 4c at its front end, which moves between the knitting needles 3. The sinker 4 also has an integrally formed spring 4d, a middle drive part 4e, and a tail drive part 4f. The spring 4d can also be a combination of separate yarn springs. The sinkers 4 are respectively housed in sinker slots 5a arranged side-by-side in the longitudinal direction in a sinker base plate 5 located above the needle bed 2. The carriage 6 reciprocates in the longitudinal direction relative to the needle bed 2 and the sinker base plate 5. The carriage 6 has a sinker advance / retreat mechanism 7. The sinker advance / retreat mechanism 7 includes an advance / retreat triangle 7a. The advance / retreat triangle 7a drives each sinker 4 by advancing / retreating its front end between the knitting needles 3. The teeth 1a that advance / retreat between the needle hook 3a of the knitting needle 3 and the front end of the sinker 4 are as follows: Figure 4 As shown, the bobbin thread 8a and the terry yarn 8b are supplied from the first yarn supply port 9a and the second yarn supply port 9b, respectively, as weaving threads.

[0046] The sinker advance / retreat mechanism 7 of this embodiment 1 also includes a capture up / down assembly 10. Before the separation of the bottom thread and the terry yarn, the capture up / down assembly 10 raises the front end of the sinker 4 in the toothed opening 1a and drives the sinker 4 to pull down the bottom thread 8a supplied from the yarn supply opening 9a by capturing it between the bottom thread hook 4a and the terry yarn hook 4b. Figure 1 The solid line represents the state of the sinker 4 driven by capturing the bottom thread and the state of the knitting needle 3 corresponding to the same phase. The dashed line represents the state before the front end of the sinker 4 enters between the knitting needles 3. The double-dotted line represents the state of pushing in the old arc by the push-in part 4c of the sinker 4 together with the state of the corresponding knitting needle 3. This state of the knitting needle 3 also corresponds to the sinker 4 in the dashed line. The push-in action is performed after the loop formed by the separation of the bottom thread 8a and the terry yarn 8b and the pulling in of the hook 3a forms a fixed loop density. After the fixed loop density, by temporarily withdrawing the front end of the sinker 4 from between the knitting needles 3 and then re-entering, the push-in part 4c can push the old arc that is stuck near the tooth 1a downwards from the tooth 1a. The push-in performed by re-entering is performed by bringing the front end of the sinker 4 into the tooth 1a side compared to the bottom surface of the knitting needle 3. As will be described later, since the bottom thread 8a can be captured by the sinker 4 and pulled down by the sinker advance / retreat mechanism 7 and separated from the terry yarn 8b, terry knitting can be performed even when using a knitting needle 3 that does not have a knitting yarn locking hook. As the knitting needle 3, composite needles that do not use the needle latch 3b can also be used.

[0047] The upper and lower capture assembly 10 of this embodiment 1 includes a rising triangle 11 that causes the sinker 4 to rise above the toothed opening 1a against the downward loading of the spring 4d. This embodiment 1 also includes a rising pressing triangle 12 for reliably raising and lowering the sinker 4 in a way that limits its rise from the rising triangle 11 to a certain extent, but this can be omitted. However, in the case where the sinker 4 does not have the spring 4d, a triangle is needed to lower the sinker 4. In this embodiment 1, the rising triangle 11 is provided on the sinker groove 5a of the sinker base plate 5, which guides the sinker 4 in its movement between the knitting needles 3, so that the front end of the sinker 4 rises in the toothed opening 1a. The front end of the sinker 4 can capture the bottom thread 8a while being associated with the movement of the sinker 4 in and out. The rising pressing triangle 12 presses down on the middle drive part 4e of the sinker 4 raised by the rising triangle 11 from above. The position where the rising triangle 12 presses down is a position away from the toothed jaw 1a compared to the position where the rising triangle 11 causes the sinker 4 to rise, so the front end of the sinker 4 swings and rises. Since the spring 4d is loaded in the direction of the sinker 4's downward movement, the front end will fall as soon as the upward movement caused by the rising triangle 11 is released.

[0048] The drive of the sinker 4 by the capture up-and-down assembly 10 can also be set with the same selection mechanism as the needle selection mechanism in the case of individually selecting the knitting needle 3, selecting each sinker 4. For example, the capture up-and-down assembly 10 can switch to drive the sinker 4 within a range including the knitting width, and not drive the sinker 4 outside of that range. If the capture up-and-down assembly 10 drives all the sinkers 4, the knitting of one loop row will end outside the knitting width range. When changing the positions of the yarn feed port 9a of the bobbin thread 8a and the yarn feed port 9b of the terry yarn 8b, there is a risk of interference between the sinker 4, which stops while its leading edge is rising in the toothed mouth 1a, and the yarn feed ports 9a and 9b. To avoid interference, the drive for knitting one loop row needs to be stopped after all the sinkers 4 have descended, which reduces the knitting efficiency. This reduction in knitting efficiency can be prevented by switching to a mode in which the drive of the sinker 4 by the capture up-and-down assembly 10 is not performed outside the range including the knitting width. Furthermore, although the interference between the sinker 4 and the yarn supply ports 9a and 9b can be avoided by raising the position of one of the yarn supply ports 9a and 9b that is moved to switch positions, the yarn supply conditions deteriorate. Although the interference can also be avoided by setting a height switching mechanism in the yarn supply ports 9a and 9b, the mechanism of the yarn supply ports 9a and 9b becomes more complex.

[0049] The capturing upper and lower assembly 10 of this embodiment 1 includes a pressing triangle 13 and a needle selector 14. The needle selector 14 is disposed between the bottom of the sinker 4 and the sinker groove 5a. It can be selected along the movement path to a position where the rising triangle 11 causes the front end of the sinker 4 to rise in the toothed opening 1a; and a position where the rising triangle 11 is not used, and the front end of the sinker 4 is not raised in the toothed opening 1a. The needle selector 14 has a selection section 14a at its tail end, and a pushing section 14b and a pressing section 14c at its front end. The selection section 14a receives the selection action performed by the switching triangle 15. Although the pressing triangle 13 presses down the selection section 14a to reliably perform the selection action performed by the switching triangle 15, it can also be omitted. The solid line in the figure indicates that the selected needle selector 14 receives the upward pressure of the rising triangle 11 at the pressing section 14c, and the sinker 4 is pushed up by the pushing section 14b as shown by the solid line. The dashed line in the diagram indicates that the selection needle 14 is not accepting selection.

[0050] The selection of the needle selector 14 is achieved by setting the switching triangle 15 to the state indicated by the solid line. The switching triangle 15 is oscillated by the actuator 16, setting the needle selector 14 to a non-selected state when it is set to the state indicated by the dashed line. In this embodiment 1, the switching triangle 15 is used in two layers, by using… Figure 8The needle selection plates 14A and 14B shown can select the sinker plates 4 in two groups. The upper and lower switching triangles 15 select the needle selection plates 14A and 14B, which are respectively provided with selection sections 14a at the top and bottom. A group is formed by multiple sinker plates that are adjacent in the length direction. The number of groups can be three or more, as long as the needle selection plates 14 and switching triangles 15 are prepared in accordance with the number of groups. It is also possible to select sinker plates 4 that are adjacent in the length direction individually. For example, sinker plates 4 can be selected individually by the same mechanism as the needle selection mechanism, including the needle selection action actuator that selects knitting needles 3 individually. If the needle selection plates 14 are divided into groups for selection, the selection mechanism required in the case of individual switching can be simplified. In the case of gloves such as those in terry knitting patent document 1, since each finger cot is knitted, if the gloves are divided into two groups in advance so that adjacent finger cots do not belong to the same group, the needle selection plates 14 outside the knitting width of each finger cot can be made unselectable.

[0051] Figure 2 Indicates in Figure 1 The state of not selecting the pin plate 14 in the upper and lower components 10 is captured. Figure 3 Indicates in Figure 1 The state of the needle selection plate 14 is selected by the upper and lower components 10. If the needle selection plate 14 is not selected, the base position remains unchanged, but the sinker plate 4 moves forward and backward. If the needle selection plate 14 is selected, the needle selection plate 14 is moved from the base position by the switching triangle 15 to the position where it receives the push action of the rising triangle 11 at the pressure part 14c. By being pushed up by the rising triangle 11, the needle selection plate 14 intervenes by pushing up the sinker plate 4 with the pushing part 14b. If the sinker plate 4 is pushed up while entering the toothed opening 1a, the front end rises in the toothed opening 1a, and the bobbin 8a supplied from the yarn supply opening 9a can be captured between the bobbin hook 4a for the bottom thread and the terry yarn hook 4b. As in this embodiment 1, whether the needle selection plate 14 is used or the mechanism for directly selecting the sinker plate 4 is provided, the unselected sinker plate 4 does not perform the action of raising the front end in the toothed opening 1a to capture the bobbin 8a, but performs the action of moving the front end forward and backward in the toothed opening 1a by direct motion.

[0052] Figure 4 It means in Figure 1 A top view of the trajectory and triangular configuration of the sinker 4 during terry knitting in a flat knitting machine 1. Figure 5 Indicates in Figure 1 The trajectory and triangular configuration of the knitting needles 3 during terry knitting on the flat knitting machine 1. Figure 6 Indicates in Figure 1The trajectory of the needle selector 14 and the configuration of the cams during terry knitting on a flat knitting machine 1 are shown. In each diagram, it is assumed that the carriage 6 moves to the left, and the trajectory changes to the right. On the carriage 6, for driving the sinker 4, a forward / backward cam 7a and auxiliary movable cams 7b, 7c, and 7d are mounted. The sinker 4... Figure 4 The advancing and retreating triangle 7a is pushed into the toothed jaw 1a by the triangular face shown on the upper side and by the movable triangles 7b and 7d. The pushing action of the advancing and retreating triangle 7a thus... Figure 4 The portion that is laterally connected to the right side of the middle drive unit 4e in the side view shown on the right is received. The pushing action is performed by the movable triangles 7b and 7d. Figure 4 In the right-side side view, it is received by the lower side of the tail end drive unit 4f. The upper side of the tail end drive unit 4f is... Figure 4 The sinker 4 is disengaged from the toothed opening 1a by the push of the lower triangular face in the advance / retreat triangle 7a. The sinker 4 moves its front end up and down by the push of the rising triangle 11 and the self-recovery caused by the loading of the spring 4d. A knitting triangle 18 is also mounted on the carriage 6 to drive the knitting needle 3. The knitting needle 3 is formed by combining a main body 3c with a needle hook 3a and a needle tongue 3b and a needle lifter 3d connected to the tail of the main body 3c. The knitting triangle 18 includes a rising triangle 18a, a mid-mountain triangle 18b, a starting triangle 18c, a yarn bending triangle 18d, a guide triangle 18e, and a rubber ridge triangle 18f, and acts on the needle heel 3e of the needle lifter 3d. The starting triangle 18c protrudes during starting and drives the knitting needle 3 when the carriage 6 moves to the right. The rubber ridge triangle 18f is used to gather the elastic yarn supplied from the yarn feed opening 9c. On the rising triangle 11, a selection pin plate 14 is also provided to move towards the toothed mouth 1a under the action of the switching triangle 15. Figure 2 The base positions shown correspond to the return triangles 11b and 11c. The rising pressing triangle 12 presses down on the middle drive part 4e of the settling plate 4. Figure 6 The section symbols AA and BB shown above represent sections A and B, respectively, which are related to the ascending triangle 11a.

[0053] exist Figure 4 and Figure 5 The terms also indicate the main phases α, β, γ, δ, ε, ζ, η, and θ associated with the drive of the settling plate 4 by the upper and lower components 10 for capturing. Figure 1 The dashed line corresponds to phase α, the solid line to phase γ, and the double-dotted line to phase θ. Phase γ also corresponds to... Figure 3 The dotted line corresponds to, Figure 3The solid line corresponds to phase δ. Furthermore, in the case of knitting gloves like those in Patent Document 1, opposing needle beds 2 are used alternately to essentially knit a bag-shaped fabric. When the carriage 6 moves to the right, although opposing needle beds 2 are used, the basic triangle configuration remains the same. While the yarn feed ports 9a and 9b can be separated by a gap to capture the bobbin 8a via the sinker 4, enabling terry knitting, plain weave can also be performed if the yarn feed ports 9b and 9a are brought close together, capturing both the bobbin 8a and the terry yarn 8b by the rising sinker 4. The positions of the yarn feed ports 9a and 9b can also be interchanged for plain weave knitting that captures both the bobbin 8a and the terry yarn 8b. Phase η is when, just before the fixed loop density is about to end after the loop is formed by the yarn bending triangle 18c, the front end of the sinker 4 is temporarily withdrawn from between the knitting needles 3, and in phase θ, the front end of the sinker 4 re-enters between the knitting needles 3. After loops are formed by terry weaving and plain weave, there is a possibility that old loops may remain near the toothed opening 1a. Since the push-in part 4c, located at the front end of the sinker 4, pushes the old loops downwards towards the toothed opening upon the re-entry of the sinker 4, stable weaving can be performed. Furthermore, while the yarn feed openings 9a and 9b can also be carried along by the carriage 6, it is preferable that they can move independently of the carriage 6. The independently moving yarn feed openings 9a and 9b can efficiently handle changes in the direction of travel, and switching between terry weaving and plain weave. Terry weaving and plain weave can also be switched in a mixed manner according to the loop row units in the loop longitudinal direction. Even if weaving is temporarily stopped midway through a loop row, it is possible to switch between terry weaving and plain weave by changing the interval of the yarn feed openings 9a and 9b.

[0054] Figure 7 and Figure 8 They represent Figure 1 The shapes of the sinker plate 4 and the needle selector plate 14 are as follows. The sinker plate 4 is essentially the same as the structure disclosed in Patent Document 1 in that it distinguishes the bottom thread 8a and the terry thread 8b by its front end. While the push-in portion 4c is preferably hook-shaped to reliably push in the old arc, it can also be pushed in onto flat walls, smooth curved surfaces, etc. The needle selector plate 14 corresponds to the shape of the selection portion 14a. The needle selector plate 14A with the selection portion 14a on top and the needle selector plate 14B with the selection portion 14a on the bottom are arranged according to the shape of the selection portion 14a. Figure 1 The switching triangle 15, representing the upper and lower layers, can be selected as either of the two groups. Gloves like those in Patent Document 1 only require two groups because multiple finger sleeves are knitted sequentially. However, in cases where the finger sleeves are forked and overlapping, if the selection section 14a of the needle selection plate 14C is pre-made, then either layer of the switching triangle 15, representing the upper and lower layers, can be selected.

[0055] Figure 9 and Figure 10 They represent in Figure 1 The movement of the sinker 4 in the flat knitting machine 1 for terry loop knitting, the capture of the bobbin thread 8a in phases β, γ, and δ, and the differentiation in phases ε, ζ, and η are described. Assume the following: the bobbin thread 8a and the terry loop 8b, for the rear needle bed 2 shown on the right side of the diagram, switch their travel direction as follows: the yarn feeders 9a and 9b travel towards the front of the paper surface, supplying the needle hooks 3a of the knitting needles 3 at the end of the knitting width; then the yarn feeders 9a and 9b travel towards the depth side of the paper surface, and terry loop knitting is performed by the front needle bed 2 shown on the left side of the diagram. Each knitting needle 3 is housed in the needle grooves 2a of the front and rear needle beds 2. In phase β, the front end of the sinker 4 rises. The yarn feeder 9a moves towards the depth side of the paper surface, and the bobbin thread 8a is in a state where it crosses from the needle hooks 3a of the knitting needles 3 of the rear needle bed 2 to the yarn feeder 9a. In phase γ, the front end of the sinker 4 enters the toothed side 1a, capturing the bobbin 8a between the bobbin hook 4a and the terry loop hook 4b. In phase δ, the front end of the sinker 4 descends, initiating the pull-down of the bobbin 8a and ending the capture. In phase ε, the yarn feed opening 9b passes through, and the terry loop 8b becomes a state where it crosses the needle hook 3a of the knitting needle 3 from the rear side onto the upper side of the terry loop hook 4b, distinguishing it from the bobbin 8a captured on the lower side of the terry loop hook 4b. In phase ζ, the pull-in by the needle hook 3a of the knitting needle 3 begins. In phase η, the pull-in of the knitting needle 3 continues, and the old arc closes the needle tongue 3b to release the loop, which is just before the fixed loop density is about to end.

[0056]

Example 2

[0057] Figure 11 The structure of the capture upper and lower assembly 30 in Embodiment 2 of the present invention is simplified. The capture upper and lower assembly 30 of the terry knitting flat knitting machine 21 of Embodiment 2 has an ascending triangle 31 on the advancing and retracting triangle 7a. Since a mechanism for selecting the sinker 4 is not provided, all sinker 4 move in a manner that uniformly rises to capture the bottom thread 8a. This simplifies the structure when all sinker 4 capture the bottom thread 8a. Furthermore, the drive for capturing the bottom thread 8a relative to the sinker 4 can also be achieved by making the bottom surface of the sinker groove 5a the same curved surface as the ascending triangle. Additionally, even if a guide groove is provided on the side of the sinker groove 5a and a pin is guided to protrude laterally from the sinker 4, the drive for capture can still be performed. In Embodiments 1 and 2, although the advancing and retracting of the sinker 4 is linear, with the addition of rising and swinging motions for capturing the bottom thread 8a during the linear motion, the sinker 4 can also swing, capturing the bottom thread 8a during its swing.

[0058] [Explanation of Symbols]

[0059] 1.21: Flat knitting machine for terry loop knitting

[0060] 1a: Toothed opening

[0061] 2: Needle bed

[0062] 2a: Needle groove

[0063] 3: Knitting needles

[0064] 3a: Hook and needle

[0065] 4: Settling sheet

[0066] 4a: Use a hook on the bottom line

[0067] 4b: Terry yarn hooks

[0068] 4c: Push-in section

[0069] 5: Settling plate bottom plate

[0070] 5a: Settling plate tank

[0071] 6: Carriage

[0072] 7: Settling plate advance and retraction mechanism

[0073] 7a: Advancing and Retreating Triangle

[0074] 8a: Bottom Line

[0075] 8b: Terry yarn

[0076] 9a, 9b, 9c: Yarn supply port

[0077] 10, 30: Capture using top and bottom components

[0078] 11, 31: Ascending Triangle

[0079] 14: Selecting needle pads

[0080] 14a: Selection Section

[0081] 15: Switch triangle

[0082] 16: Action actuator

[0083] 18: Weave triangles.

Claims

1. A flat knitting machine (1, 21) for terry knitting, comprising a needle bed (2), knitting needles (3), a yarn feed port (9a, 9b), a sinker (4), and a sinker advance / retreat mechanism (7). The needle bed (2) is roughly rectangular, with needle grooves (2a) arranged side by side along its length, parallel to the short side. One side of the long side is adjacent to the tooth opening (1a). The needle grooves (2a) are inclined such that they are higher on the side of the tooth opening (1a) and lower when they are away from the tooth opening (1a). The knitting needle (3) has a hook (3a) at the front end. The hook (3a) is respectively housed in each needle groove (2a) on the side of the tooth opening (1a), so that the hook (3a) moves in and out of the tooth opening (1a) and the knitting yarn supplied from above the tooth opening (1a) is used to knit loops. The yarn feed ports (9a, 9b) use the bobbin thread (8a) and the terry yarn (8b) as knitting yarns, supplying them to the knitting needles (3) with gaps between them, with the bobbin thread (8a) first and the terry yarn (8b) second. The sinker (4) has a front end with a bobbin hook (4a) at the bottom and a terry loop hook (4b) at the top. It can move between knitting needles (3). When forming a loop, the bobbin (8a) pulled in by the hook (3a) of the knitting needle (3) is hooked onto the bobbin hook (4a) to form a sinker arc of the bobbin (8a), and the terry loop (8b) is hooked onto the terry loop hook (4b) to form a sinker arc of the terry loop (8b). The sinker advance / retreat mechanism (7) drives each sinker (4) to enter between the knitting needles (3) by advancing and retreat at its front end. This allows the sinkers to be positioned so that the bobbin thread (8a) is hooked onto the bobbin thread hook (4a) side and the terry yarn (8b) is hooked onto the terry yarn hook (4b) side. Its features are, The sinker advance and retraction mechanism (7) includes a capture upper and lower assembly (10, 30) which, before the separation of the bottom thread (8a) and the terry yarn (8b), raises the front end of the sinker (4) in the toothed opening (1a) and drives the sinker (4) to pull it down below the toothed opening (1a) by capturing the bottom thread (8a) supplied from the yarn supply opening (9a) between the bottom thread hook (4a) and the terry yarn hook (4b).

2. The terry knitting machine (1) according to claim 1, characterized in that, The aforementioned upper and lower components (10) for capturing can be switched to drive the aforementioned settling plate (4) within a range including the weaving width, and not drive the aforementioned settling plate (4) outside this range.

3. The terry knitting machine (1) according to claim 2, characterized in that, The above-mentioned capture upper and lower components (10) switch the drive of the above-mentioned settling plates (4) in each group separated by multiple settling plates (4) adjacent in the above-mentioned length direction.

4. The terry knitting machine (1, 21) according to any one of claims 1 to 3, characterized in that, The aforementioned upper and lower components (10, 30) for capturing include an ascending triangle (11, 31) that raises the aforementioned settling plate (4) above the aforementioned toothed opening (1a).

5. The terry knitting machine (1) according to claim 4, characterized in that, The aforementioned ascending triangle (11) is set on the moving path of the aforementioned sinker (4) between the aforementioned knitting needles (3).

6. The terry knitting machine (1) according to claim 5, characterized in that, The above-mentioned capture upper and lower assembly (10) includes a needle selection plate (14), which is disposed between the sinker plate (4) and the moving path. The needle selection plate (14) can be selected along the moving path to pass through the rising triangle (11) to make the front end of the sinker plate (4) rise in the toothed opening (1a); and to not pass through the rising triangle (11) and not make the front end of the sinker plate (4) rise in the toothed opening (1a).

7. The terry knitting machine (1) according to claim 1, characterized in that, By leaving the above gap with the bottom thread (8a) first and the terry yarn (8b) last, the yarn supply port (9a) of the bottom thread (8a) and the yarn supply port (9b) of the terry yarn (8b) can be switched. Alternatively, the gap between the yarn supply ports (9a, 9b) can be narrowed and the bottom thread (8a) and the terry yarn (8b) can be hung on the bottom thread hook (4a) of the sinker (4) to switch the yarn supply port (9a) of the bottom thread (8a) and the yarn supply port (9b) of the terry yarn (8b). This allows switching between terry weaving and plain weaving with the bottom thread (8a) and the terry yarn (8b) as weaving yarns.

8. The terry knitting machine (1) according to claim 1, characterized in that, The aforementioned sinker (4) has a push-in portion (4c) at its front end. When the push-in portion (4c) enters between the aforementioned knitting needles (3), it can push the knitting thread into the aforementioned toothed opening (1a) at a position below the aforementioned bottom thread hook (4a). The aforementioned sinker advance and retraction mechanism (7) is driven by the sinker (4) exiting the toothed opening (1a) and then re-entering the toothed opening (1a) after the needle hook (3a) of the aforementioned braiding needle (3) that has received the braiding thread has exited the toothed opening (1a) and the coil density has been set during the aforementioned coil formation.

9. A terry knitting method, wherein the needle bed (2) is approximately rectangular, with needle grooves (2a) arranged parallel to the short side along the length direction, one side of the long side adjacent to the tooth opening (1a), and the needle grooves (2a) are inclined such that they are higher on the side of the tooth opening (1a) and lower when away from the tooth opening (1a). In the needle groove (2a) of the needle bed (2), knitting needles (3) with needle hooks (3a) at the front end are respectively housed with their front ends facing the toothed (1a) side. Make the hook (3a) move forward and backward into the toothed opening (1a), and supply the bottom thread (8a) and the terry yarn (8b) as knitting yarn from above the toothed opening (1a) with the bottom thread (8a) first and the terry yarn (8b) second, with gaps between them. The sinker (4), which has a bottom bobbin (4a) at the bottom and a terry yarn (4b) at the top, moves back and forth between the knitting needles (3) to separate the supplied bottom bobbin (8a) and terry yarn (8b). When forming a loop, the bottom bobbin (8a) pulled in by the hook (3a) of the knitting needle (3) is hooked onto the bottom bobbin (4a) to form a sinker arc of the bottom bobbin (8a), and the terry yarn (8b) is hooked onto the terry yarn (4b) to form a sinker arc of the terry yarn (8b). The characteristic of this terry weaving method is that, before the distinction between the bottom thread (8a) and the terry yarn (8b), the front end of the sinker (4) is raised in the toothed opening (1a), and the bottom thread (8a) supplied from the yarn supply opening (9a) is caught between the bottom thread hook (4a) and the terry yarn hook (4b) and pulled down below the toothed opening (1a).

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