Flat knitting machine

Abstract

The invention provides a flat knitting machine capable of automatically switching timing of swinging of a knitting member. A flat knitting machine is provided with a needle bed, a yarn feeder, a cam carriage, a knitting member, and a sub-cam system that advances and retreats the knitting member toward a cutout and swings the knitting member in a direction intersecting a direction in which the knitting member advances and retreats. The auxiliary triangle system is provided with a fixed triangle, a movable triangle, a displacement mechanism, and a plurality of pressing parts, the widths of which each press the knitting member are different, and at least one of the plurality of pressing parts is formed on the movable triangle. The knitting member includes a heel on which the fixing cam acts and a pressure receiving portion on which any one of the plurality of pressing portions acts. The pressing part acting on the pressure receiving part is switched by the displacement of the movable triangle generated by the displacement mechanism.

Description

Technical Field

[0001] The present invention relates to a flat knitting machine provided with a knitting member for assisting the knitting of a knitted fabric. Background Art

[0002] The flat knitting machine includes a needle bed, a yarn feeder and a cam carriage. The needle bed supports a plurality of knitting needles so that they can move forward and backward freely. The yarn feeder moves along the length direction of the needle bed to supply knitting yarn to the needle bed. The cam carriage includes a main cam system that acts on the knitting needles to make the knitting needles perform knitting movements. Patent Documents 1 and 2 disclose flat knitting machines that include a weaving component and a sub-cam system in addition to a needle bed, a yarn feeder and a cam carriage. The weaving component is a rod-shaped component that assists in the weaving of knitted fabrics. In Patent Document 1, the weaving component is referred to as a yarn pressing component. In Patent Document 2, the weaving component is referred to as an acting component. The sub-cam system enables the weaving component to move forward and backward toward the tooth gap, and enables the weaving component to swing in a direction intersecting the advancing and retreating direction of the weaving component. The sub-cam system is mounted on the cam carriage.

[0003] In Patent Document 1, inlay yarn weaving is implemented. Inlay yarn weaving is the weaving of inlay yarn extending along the weaving width direction of the knitted fabric into the knitted fabric. In the flat knitting machine of Patent Document 1, a weaving member assists the weaving of the inlay yarn into the knitted fabric. The weaving member contacts the inlay yarn from above and swings in a manner to press the inlay yarn downward toward the bottom of the tooth mouth.

[0004] The flat knitting machine of Patent Document 2 is capable of switching between normal plating knitting and reverse plating knitting. Normal plating knitting is a knitting method of knitting a knitted fabric by overlapping a main yarn and a plating yarn. The main yarn is arranged on the front side of the knitted fabric. Reverse plating knitting is a knitting method of knitting a knitted fabric by using the main yarn and the plating yarn in a manner that the plating yarn is arranged on the front side of the knitted fabric. In the flat knitting machine of Patent Document 2, normal plating knitting and reverse plating knitting are switched by a knitting member acting on the main yarn and the plating yarn. The knitting member moves toward a lower side than the main yarn and the plating yarn, and contacts the main yarn and the plating yarn from below the main yarn and the plating yarn. In addition, although it is not described in Patent Document 2, by swinging the knitting member, the knitting member can also be moved toward a lower side than the main yarn and the plating yarn.

[0005] [Prior art literature]

[0006] [Patent Document]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 8-13293

[0008] [Patent Document 2] International Publication No. 2018 / 186499 Summary of the invention

[0009] [Problems to be Solved by the Invention]

[0010] The timing of the swing of the knitting member is different in Patent Document 1 and Patent Document 2. That is, the shape of the sub-cam system that makes the knitting member swing is different in Patent Document 1 and Patent Document 2. Therefore, in the conventional flat knitting machine, when the timing of the swing of the knitting member is desired to be changed, the sub-cam system needs to be replaced each time.

[0011] In view of the above circumstances, one of the objects of the present invention is to provide a flat knitting machine that automatically switches the timing of swinging of a knitting member.

[0012] [Methods for solving the problem]

[0013] <1> The flat knitting machine of the present invention comprises: The needle bed supports the knitting needles so that they can move forward and backward freely; a yarn guide for supplying knitting yarn to the needle bed; A cam carriage having a main cam system which enables the knitting needles to perform a knitting action; a knitting member to assist in knitting the knitted fabric on the needle bed; and The auxiliary cam system is mounted on the cam carriage at a position above the main cam system. The sub-cam system causes the braiding member to advance and retreat toward the tooth gap, and causes the braiding member to swing in a direction intersecting the advancing and retreating direction of the braiding member. in, The sub-triangle system has: A fixed cam, configured to be immovable relative to the cam slide; A movable cam, configured to slide freely toward the tooth opening; A displacement mechanism for changing the position of the movable cam relative to the fixed cam; and A plurality of pressing parts press the braided member in a direction intersecting with the advancing and retreating direction of the braided member, The plurality of pressing portions each press the braided member to a different width. At least one of the plurality of pressing portions is formed on the movable cam. The braided component comprises: a heel on which the fixing cam acts; and a pressure receiving portion, any one of the plurality of pressing portions acting on the pressure receiving portion, The pressing part acting on the pressure receiving part is switched by the displacement of the movable cam.

[0014] <2> As mentioned above <1> One mode of the flat knitting machine may also be: The plurality of pressing portions include a first pressing portion and a second pressing portion, wherein the width of the second pressing portion is greater than that of the first pressing portion, The knitting member swung by the first pressing portion comes into contact with the knitting yarn from a position above the knitting yarn. The knitting member swung by the second pressing portion comes into contact with the knitting yarn from a position below the knitting yarn.

[0015] <3> As mentioned above <2> One mode of the flat knitting machine may also be: The first pressing portion and the second pressing portion are formed on the movable cam.

[0016] <4> As mentioned above <1> to <3> One mode of the flat knitting machine may also be: The at least one pressing portion is configured to be detachable.

[0017] <5> As mentioned above <1> to <4> One mode of the flat knitting machine may also be: The pressure receiving portion is arranged at a position closer to the needle gap than the butt in the knitting member.

[0018] [Effects of the invention]

[0019] In the flat knitting machine described in <1>, at least two pressing parts can be switched by a movable cam that is configured to slide freely in the forward and backward directions of the knitting member. Therefore, according to the flat knitting machine, the timing of the swing of the knitting member can be changed by displacing the movable cam. In the flat knitting machine, when it is desired to change the timing of the swing of the knitting member, it is not necessary to replace the sub-cam system each time.

[0020] In the flat knitting machine described in <2> above, it is possible to switch between the action of the knitting member contacting from above the knitting yarn and the action of the knitting member contacting from below the knitting yarn. The action of the knitting member contacting from above the knitting yarn is used, for example, for inlay knitting or floating yarn knitting. The action of the knitting member contacting from below the knitting yarn is used, for example, for switching from plating knitting to reverse plating knitting.

[0021] In the flat knitting machine described in <3> above, the first pressing portion and the second pressing portion can be switched simply by forming the first pressing portion and the second pressing portion in parallel in the sliding direction of the movable cam. Therefore, the structure of the sub-cam system can be simplified.

[0022] In the flat knitting machine described in <4> above, the pressing portion formed on the movable cam is configured to be detachable, whereby the timing of the swing of the knitting member can be changed simply by replacing the pressing portion.

[0023] In the flat knitting machine described in <5>, the front end of the knitting member swings with the butt as a fulcrum. If a pressure receiving portion is formed at a position closer to the tooth opening than the butt, the front end of the knitting member can swing greatly even if the protrusion of the pressing portion pressing the pressure receiving portion is small. Therefore, it is not necessary to increase the protrusion of the pressing portion, and the sub-cam system is difficult to be enlarged. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the tooth gap vicinity of the flat knitting machine according to the embodiment.

[0025] Figure 2 yes Figure 1 A schematic side view of a displacement mechanism and a movable cam of a flat knitting machine.

[0026] Figure 3 It is an explanatory diagram showing the positional relationship between the movable cam arranged at the first position and the displacement mechanism.

[0027] Figure 4 (A) is an explanatory diagram showing the positional relationship between the movable cam arranged at the first position and the coil pressing piece, Figure 4 (B) is observed along the B direction Figure 4 Schematic diagram of the movable triangle shown in (A).

[0028] Figure 5 It is an explanatory diagram showing the positional relationship between the movable cam arranged at the second position and the displacement mechanism.

[0029] Figure 6 It is an explanatory diagram showing the positional relationship between the movable cam arranged in the second position and the coil pressing piece.

[0030] Figure 7 It is an explanatory diagram showing the correspondence relationship of all cams during inlay knitting using the movable cam disposed at the first position.

[0031] Figure 8 Yes means Figure 7 A schematic diagram of the positional relationship between the knitting needle and the coil pressing plate at timing A.

[0032] Fig. 9 Yes means Figure 7 A schematic diagram of the positional relationship between the knitting needle and the coil pressing plate of timing B.

[0033] Fig.10 Yes means Figure 7 A schematic diagram of the positional relationship between the knitting needle and the coil pressing plate at timing C.

[0034] Fig.11 It is an explanatory diagram showing the correspondence relationship among all cams when reverse plating is performed using the movable cam disposed at the second position.

[0035] Fig.12 Yes means Fig.11 A schematic diagram of the positional relationship between the knitting needle and the coil pressing plate at timing D.

[0036] Fig.13 Yes means Fig.11 A schematic diagram of the positional relationship between the knitting needle and the coil pressing plate at timing E.

[0037] Fig.14 Yes means Fig.11 A schematic diagram of the positional relationship between the knitting needle and the coil pressing plate at timing F.

[0038] Fig.15 This is a schematic structural diagram of a movable cam according to a modified example.

[0039] Fig.16 (A) is a schematic diagram of a structural example in which a first pressing portion is formed on a fixed cam. Fig.16 (B) is related to Fig.16 (A) Schematic diagram of different structural examples.

[0040] [Explanation of Reference Numerals]

[0041] 1 Flat knitting machine

[0042] 1B needle bed, 1F needle bed, 1G tooth mouth, 1U auxiliary needle bed

[0043] 10 Tripod Slide

[0044] 10B bracket, 10P auxiliary triangle plate

[0045] 10H Extension

[0046] 11, 12 yarn feeders, Y1, Y2 knitting yarn

[0047] 15 Adsorption

[0048] 19 needle, 19F hook

[0049] 2 Braided components

[0050] 2P front end, 2M armature

[0051] 20 main body, 21 heel, 22 pressure receiving part, 25 spring leaf part

[0052] 3 Sub-triangle system

[0053] 30 Pressing part

[0054] 31 first pressing part, 32 second pressing part, 32L, 32R split piece

[0055] 310, 320 mountain part, 311, 312, 321, 322 inclined part

[0056] 4 Fixed triangle

[0057] 40 groove, 45 recess, 46 protrusion

[0058] 5 Movable triangle

[0059] 5P Pin

[0060] 50 plate-shaped body, 52 disassembly hole, 56 engagement hole

[0061] 6 Displacement mechanism

[0062] 60 Solenoid, 60P Plunger

[0063] 61 rod, 61A rotating shaft portion, 61B first arm portion, 61C second arm portion

[0064] 62 switching triangle, 62C engagement shaft, 62G triangle groove

[0065] 621 first step portion, 622 second step portion, 623 inclined portion

[0066] 63 Spring

[0067] 65 recess

[0068] 9 Main triangle system

[0069] 90 knitting triangle, 91 needle raising triangle, 92 yarn bending triangle

[0070] 94 Yarn pressing triangle DETAILED DESCRIPTION

[0071] <Implementation Method 1>

[0072] Hereinafter, an example of an embodiment of a flat knitting machine of the present invention will be described based on the drawings. The same reference numerals in the drawings represent the same or corresponding parts.

[0073]

Overall structure

[0074] Figure 1 The flat knitting machine 1 of this example is a two-needle bed flat knitting machine. Unlike this example, the structure of the present invention can also be applied to a four-needle bed flat knitting machine. The flat knitting machine 1 of this example includes needle beds 1F and 1B, a yarn feeder 11, a cam carriage 10, a weaving member 2, and a sub-cam system 3. One of the characteristics of the flat knitting machine 1 of this example is the structure of the sub-cam system 3. The following describes the various structures of the flat knitting machine in detail.

[0075]

Needle bed

[0076] exist Figure 1, only a part of the structure of the needle beds 1F and 1B is shown. The needle beds 1F and 1B are respectively provided with a plurality of knitting needles 19 for knitting knitted fabrics. The needle beds 1F and 1B are fixed to a frame (not shown) of the flat knitting machine 1. The needle beds 1F and 1B are arranged in a mountain shape in such a way that the front ends of the knitting needles 19 of each needle bed face each other. A tooth gap 1G is formed between the upper end of the needle bed 1F and the upper end of the needle bed 1B. The knitting needles 19 provided in the needle beds 1F and 1B may be latch needles or compound needles provided with needle guides. An auxiliary needle bed 1U provided with a plurality of knitting components is arranged on the upper part of the needle beds 1F and 1B.

[0077]

Yarn feeder

[0078] The yarn feeder 11 is arranged above the needle bed gap 1G and supplies the knitting yarn Y1 to the needle bed gap 1G. Figure 1 Although only one yarn feeder 11 is shown in the figure, the flat knitting machine 1 is provided with a plurality of yarn feeders 11. The knitting yarn Y1 supplied to the needle gap 1G is hooked on the hook of the knitting needle 19 and is pulled into the needle bed 1F or the needle bed 1B to form a loop.

[0079] The yarn feeder 11 is configured to be able to extend in the longitudinal direction ( Figure 1 The yarn feeder 11 may be self-propelled or may be carried by the triangular seat carriage 10.

[0080]

Triangular seat slide

[0081] The carriage 10 is a member that reciprocates on the needle beds 1F, 1B along the longitudinal directions of the needle beds 1F, 1B. Figure 1 Only a very small part of the cam carriage 10 is shown. The cam carriage 10 includes a main cam system 9 acting on the knitting needles 19. The main cam system 9 is a well-known structure as described in, for example, Japanese Patent Publication No. 7-33619. Figure 7 As shown, the main cam system 9 includes a knitting cam 90 for making the knitting needle 19 perform knitting action. The knitting cam 90 includes a needle raising cam 91 for making the knitting needle 19 advance toward the tooth gap 1G and a yarn bending cam 92 for making the knitting needle 19 retreat from the tooth gap 1G. Figure 7 Although not shown in the figure, the main cam system 9 includes a transfer cam that acts on the knitting needle 19 when the stitch moves.

[0082] like Figure 1 As shown, a sub-cam plate 10P having a sub-cam system 3 is mounted on the cam carriage 10. An extension portion 10H is formed on the sub-cam plate 10P. A suction mechanism including a plurality of suction portions 15 is provided at a portion of the extension portion 10H facing the knitting member 2. The plurality of suction portions 15 are arranged at intervals in the longitudinal direction of the needle beds 1F and 1B.

[0083]

Weaving components

[0084] The flat knitting machine 1 includes a plurality of knitting members 2. The knitting members 2 are long plates that assist in knitting of knitted fabrics. The knitting members 2 are functionally arranged in a one-to-one correspondence with each knitting needle 19. The number of knitting members 2 in this example is the same as the number of knitting needles 19. Unlike this example, the number of knitting members 2 may be less than the number of knitting needles 19.

[0085] The knitting member 2 in this example is a coil pressing piece. The coil pressing piece is, for example, a member that acts on the knitting yarn Y1 extending from the yarn feeder 11 to assist in the formation of the coil. The coil pressing piece assists in the formation of the coil on the knitting needle 19 located at a position opposite to the tooth gap 1G. For example, the coil pressing piece arranged above the needle bed 1F assists in the formation of the coil on the knitting needle 19 of the needle bed 1B. Different from this example, the knitting member 2 may also be, for example, a yarn guide, a stitch transfer foot plate, or a movable sinker.

[0086] The coil pressing piece of this example assists in placing the inlay yarn at a desired position in inlay yarn knitting, as described in Patent Document 1, or assists in switching from normal inlay yarn knitting to reverse inlay yarn knitting, as described in Patent Document 2. The coil pressing piece is arranged on the auxiliary needle bed 1U. The coil pressing piece is arranged to be able to move forward and backward freely toward the tooth opening 1G. In addition, the front end 2P of the coil pressing piece facing the tooth opening 1G is arranged in a direction intersecting the direction of advance and retreat (refer to Figure 1 The arrows at both ends of the

[0087] In this example, the knitting member 2 as the coil pressing piece arranged above the needle bed 1F is described. Therefore, each direction on the drawings in this example is defined based on the knitting member 2 arranged above the needle bed 1F. First, the direction along the length of the knitting member 2 toward the tooth gap 1G is set as the F direction, and the opposite direction of the F direction is set as the B direction. The F direction is the entry direction of the knitting member 2, and the B direction is the retreat direction of the knitting member 2. That is, the advance and retreat direction of the knitting member 2 is the FB direction including the F direction and the B direction. Next, the direction perpendicular to the surface on which the flat knitting machine 1 is set is set as the U direction, and the opposite direction of the U direction is set as the L direction. The UL direction including the U direction and the L direction is orthogonal to the FB direction. In this example, the swing direction of the front end 2P of the knitting member 2 is the UL direction. The direction orthogonal to both the advance and retreat direction and the swing direction of the knitting member 2 coincides with the length direction of the needle bed 1F. The swing direction of the front end 2P of the knitting member 2 can be any direction that intersects with the FB direction in the surface including the FB direction and the UL direction, and is not limited to the UL direction.

[0088] For details about the braided member 2, refer to Figure 4 (A). Figure 4(A) is a diagram showing the correspondence between the braiding member 2 and the sub-cam system 3 described later. In this figure, the braiding member 2 is shown in a side view different from the actual orientation in order to facilitate understanding of the correspondence between the braiding member 2 and the sub-cam system 3. In the braiding member 2, the left direction on the paper is the U direction, and the right direction is the L direction.

[0089] The braiding member 2 includes a main body 20 and a spring piece 25 branching from the main body 20. The front end 2P of the main body 20 is a portion that acts on the knitted yarn Y1. An armature 2M is disposed at the rear end of the main body 20. Figure 1 As shown, the armature 2M is arranged to face the adsorption portion 15.

[0090] The spring piece 25 is a rod-shaped piece connected to the main body 20 in a cantilevered manner. The end of the spring piece 25 is connected to the auxiliary needle bed 1U ( Figure 1 ) contact. The main body 20 is pushed toward the auxiliary triangle plate 10P by the elastic force of the spring piece 25.

[0091] The main body 20 is provided with a butt 21 protruding in the U direction (left direction on the paper) and a pressure portion 22. The butt 21 is a structure for moving the knitting member 2 forward and backward. The pressure portion 22 is arranged at a position closer to the F direction side than the butt 21. The pressure portion 22 is a structure for swinging the front end 2P of the knitting member 2. The pressure portion 22 of this example is a protrusion having the same shape as the butt 21. The specific forward and backward movement and swinging movement of the knitting member 2 will be described later. Unlike this example, the positions of the butt 21 and the pressure portion 22 may be opposite.

[0092]

Sub-triangle system

[0093] The sub-cam system 3 is mounted on the sub-cam plate 10P. In the description of the sub-cam system 3, reference is mainly made to Figures 2 to 4 . Figure 3 Observed from the L direction Figure 2 A diagram of a portion of the sub-triangle system 3 is shown. Figure 4 (A) is a diagram showing the corresponding relationship between the fixed cam 4 and the movable cam 5 and the knitting member 2 as viewed in the U direction. Figure 4 (B) is a diagram of the movable cam 5 viewed from the B direction.

[0094] like Figure 2 As shown, the auxiliary cam system 3 includes: a fixed cam 4 fixed to the auxiliary cam plate 10P; a movable cam 5 configured to slide freely toward the tooth gap 1G; and a displacement mechanism 6 for changing the position of the movable cam 5 relative to the fixed cam 4. The auxiliary cam plate 10P is mounted on the cam seat slide 10 ( Figure 1 The sub-cam system 3 also includes a plurality of pressing parts 30 ( Figure 4). Each pressing portion 30 is a structure for causing the braiding member 2 to swing in a direction intersecting with the advancing and retreating direction of the braiding member 2.

[0095] The fixed cam 4 is a cam for advancing and retreating the braiding member 2. Figure 4 As shown, the fixing cam 4 of this example has a groove 40 which meanders in the F direction and the B direction. Figure 4 The left-right direction is the reciprocating direction of the triangle carriage 10. The butt 21 of the weaving member 2 is embedded in the groove 40. As the triangle carriage 10 reciprocates, the butt 21 is guided by the groove 40, so that the weaving member 2 moves in the F direction or retreats in the B direction. The groove 40 of this example forms a route without branches. Unlike this example, the groove 40 may also have branches for forming multiple paths. For example, the groove 40 may also be a way of merging the branched routes into one route after a route branches into multiple routes in the middle.

[0096] The quadrilateral indicated by the double-dotted dashed line overlapping a portion of the groove 40 indicates the position where the adsorption portion 15 is arranged. The structure of the adsorption portion 15 can utilize a known structure. When the butt 21 is arranged at a position corresponding to the adsorption portion 15, the armature 2M of the braiding member 2 is adsorbed by the adsorption portion 15, and the butt 21 is detached from the groove 40. In this way, the braiding member 2 will not move forward or backward. When the adsorption surface of the magnetic pole of the adsorption portion 15 is demagnetized, the armature 2M leaves the adsorption surface. That is, by turning the adsorption portion 15 ON / OFF (start / stop), the presence or absence of the advance and retreat movement of the braiding member 2 can be controlled.

[0097] In addition, the fixed cam 4 has a recessed portion 45 and an extended portion 46 for mounting the movable cam 5 described later. The recessed portion 45 is a depression formed on the surface facing the U direction at the end portion in the F direction of the fixed cam 4. The extended portion 46 extends in the F direction compared to other parts of the fixed cam 4. The extended portion 46 further extends in the U direction.

[0098] The movable cam 5 is composed of a plate-shaped body 50 which is freely displaceably mounted on the auxiliary cam plate 10P. The movable cam 5 is arranged in the recess 45 of the fixed cam 4 and is clamped by the auxiliary cam plate 10P and the fixed cam 4 (see Figure 2 ). The movable cam 5 has an engagement hole 56 at its center. The engagement hole 56 penetrates in the thickness direction of the plate-like body 50. The extension 46 of the fixed cam 4 is embedded in the engagement hole 56. Therefore, the movable cam 5 clamped by the auxiliary cam plate 10P and the fixed cam 4 is held so as not to fall off from the auxiliary cam plate 10P.

[0099] The movable cam 5 of this example is configured to be able to slide in the B direction or the F direction along the recessed portion 45 of the fixed cam 4. The sliding direction of the movable cam 5 is parallel to the advancing and retreating direction of the knitting member 2. Figure 4In (A), the movable cam 5 is arranged at a first position close to the edge of the concave portion 45 in the B direction. Figure 6 FIG. 4 shows a state in which the movable cam 5 slides in the F direction and is arranged at a second position away from the edge of the concave portion 45 in the B direction. Different from this example, the movable cam 5 may also be configured to be able to slide in the F direction. Figure 4 The inclined direction is the direction between the advancing and retreating direction of the knitting member 2 and the moving direction of the cam carriage 10 orthogonal to the advancing and retreating direction. In this case, the movable cam 5 also slides at least in the advancing and retreating direction of the knitting member 2.

[0100] The movable cam 5 has two first pressing portions 31 that sandwich the engaging hole 56 in the reciprocating direction of the cam slide 10, and two second pressing portions 32 that sandwich the engaging hole 56 in the reciprocating direction of the cam slide 10. The second pressing portion 32 is arranged at a position closer to the B direction side than the first pressing portion 31. The first pressing portion 31 and the second pressing portion 32 are both a type of pressing portion 30 that acts on the pressure receiving portion 22 of the weaving member 2 to swing the front end 2P of the weaving member 2. The width of the second pressing portion 32 (the length along the reciprocating direction of the cam slide 10) is greater than the width of the first pressing portion 31. Figure 4 In FIG. 1 , the double-dashed line indicates the movement trajectory of the pressure receiving portion 22. The movement trajectory is consistent with the meandering trajectory of the groove 40 of the fixing cam 4. Figure 4 In the state, the first pressing part 31 is arranged on the moving track of the pressure receiving part 22 and acts on the pressure receiving part 22. If the movable cam 5 is displaced by the displacement mechanism 6 described later, the second pressing part 32 is arranged on the moving track of the pressure receiving part 22 and acts on the pressure receiving part 22. Different from this example, the second pressing part 32 may also be arranged at a position closer to the F direction side than the first pressing part 31.

[0101] The first pressing portion 31 protrudes in the L direction corresponding to the lower side of the flat knitting machine 1. The L direction coincides with the thickness direction of the sub-cam system 3. The first pressing portion 31 presses the pressure receiving portion 22 in the L direction, and the front end 2P of the knitting member 2 descends toward the tooth gap 1G. The knitting member 2 swings in a manner of pressing the knitting yarn Y1 from above by the first pressing portion 31. This will be described in detail in the knitting example 1 described later.

[0102] The first pressing portion 31 includes a mountain portion 310 parallel to one surface of the plate-like body 50 and inclined portions 311 and 312 sandwiching the mountain portion 310. Unlike this example, the mountain portion 310 may also be a curved surface. Figure 4 As shown in (B), the contours of the inclined portions 311 and 312 viewed in the B direction are formed in a straight line from one surface of the plate-like body 50 toward the peak portion 310. The contours may be formed in a curved line.

[0103] The second pressing portion 32 differs from the first pressing portion 31 only in width. That is, the second pressing portion 32 protrudes in the L direction and has a mountain portion 320 and inclined portions 321, 322. Unlike this example, the protruding height of the mountain portion 320 may be different from the protruding height of the mountain portion 310 of the first pressing portion 31. The width of the pressing portion 30 is the length of the pressing portion 30 along the reciprocating direction of the triangular seat slide 10. The width of the second pressing portion 32 is greater than the width of the first pressing portion 31. Moreover, the width of the mountain portion 320 of the second pressing portion 32 is greater than the width of the mountain portion 310 of the first pressing portion 31. That is, the second pressing portion 32 starts pressing the pressure receiving portion 22 earlier and ends pressing later than the first pressing portion 31. Therefore, the second pressing portion 32 causes the knitting member 2 to swing in a manner of entering below the knitted yarn Y1. This will be described in detail in knitting example 2 described later.

[0104] The second pressing portion 32 of this example is configured to be freely detachable relative to the plate-like body 50. In this example, a plate piece having the second pressing portion 32 is embedded in the detachable hole 52 formed in the plate-like body 50. In this structure, the timing of the swing of the braided member 2 caused by the second pressing portion 32 can be changed simply by changing the plate piece embedded in the detachable hole 52 to another plate piece with a different width of the second pressing portion 32. Different from this example, the second pressing portion 32 may also be formed integrally with the plate-like body 50.

[0105] The first pressing portion 31 and the second pressing portion 32 are independent of each other in the FB direction. The FB direction is a direction along the F direction and the B direction. That is, a clear boundary line is formed between the first pressing portion 31 and the second pressing portion 32 arranged along the FB direction, and the first pressing portion 31 and the second pressing portion 32 are switched in stages. Therefore, even if the movable cam 5 slides slightly due to vibration or the like, the switching of the pressing portion 30 acting on the pressure receiving portion 22 can be suppressed. Therefore, the swinging action of the braiding member 2 generated by the first pressing portion 31 and the second pressing portion 32 is stable.

[0106] The number of the pressing portions 30 having different widths in this example is two, but may be three or more. For example, the first pressing portion 31 and the second pressing portion 32 may also include a third pressing portion having different widths.

[0107] like Figure 2 As shown, the displacement mechanism 6 of this example is mounted on the bracket portion 10B. The displacement mechanism 6 includes a solenoid 60, a rod 61, a switching cam 62, and a spring 63. The displacement mechanism 6 may be any structure capable of changing the position of the movable cam 5 relative to the fixed cam 4, and is not limited to the structure of this example.

[0108] The solenoid 60 is fixed to the surface of the bracket portion 10B on the U direction side. Figure 3As shown, the plunger 60P of the solenoid 60 faces the first arm portion 61B of the rod 61. The rod 61 is a substantially Y-shaped member, and includes a rotation shaft portion 61A, a first arm portion 61B, and a second arm portion 61C. The rod 61 is configured to be rotatable around the rotation shaft portion 61A. The second arm portion 61C engages with an engagement shaft portion 62C extending from the switching triangle 62 in the U direction.

[0109] The switching cam 62 is fitted into a recess 65 formed on the U-direction surface of the auxiliary cam plate 10P (see Figure 2 ). The switching cam 62 can slide in the reciprocating direction of the cam carriage 10. The switching cam 62 has two cam grooves 62G. Each cam groove 62G has a first step portion 621 parallel to the reciprocating direction of the cam carriage 10, a second step portion 622 closer to the F direction than the first step portion 621, and an inclined portion 623 connecting the first step portion 621 and the second step portion 622. A pin 5P extending from the movable cam 5 in the U direction is embedded in the cam groove 62G.

[0110] The spring 63 connects the middle portion of the second arm portion 61C to the bracket portion 10B. The second arm portion 61C is pulled counterclockwise by the spring 63. The second arm portion 61C moves the engagement shaft portion 62C to the Figure 3 And, the pin 5P is arranged on the first step portion 621 of the triangular groove 62G of the switching triangle 62. As a result, Figure 4 As shown, the first pressing portion 31 of the movable cam 5 is arranged on the moving track of the pressed portion 22 of the braiding member 2 .

[0111] When the plunger 60P of the solenoid 60 advances toward the first arm portion 61B of the rod 61, as shown in FIG. Figure 5 As shown, the first arm 61B is pressed by the plunger 60P to rotate the rod 61 clockwise. Then, the switch triangle 62 is turned to Figure 5 The pin 5P is arranged on the second step portion 622 of the triangular groove 62G. As a result, Figure 6 As shown, the second pressing portion 32 of the movable cam 5 is arranged on the moving track of the pressure receiving portion 22 of the braiding member 2. If the plunger 60P retreats from the first arm portion 61B, the movable cam 5 returns to Figure 3 and Figure 4 status.

[0112]

Knitting Example 1

[0113] based on Figures 7 to 10 A knitting example using the knitting member 2 in the inlay knitting is described. Figure 7 In the figure, the knitting cam 90 of the main cam system 9 and the sub-cam system 3 are arranged vertically. Figure 7 , the tripod carriage 10 ( Figure 1) The position of the yarn feeder 11 is shown in the two-dot chain line of the position of the auxiliary cam system 3, which indicates the movement trajectory of the butt 21 and the pressure receiving portion 22 of the knitting member 2. The two-dot chain line shown in the position of the knitting cam 90 indicates the knitting needle 19 ( Figure 1 ) has a moving track of the unillustrated heel. In this knitting example 1, Figure 7 In the left region of the braided member 2, the adsorption portion 15 ( Figure 1 ) is adsorbed, so that the left part of the sub-cam system 3 is not used. The vertical lines with capital letters in the figure represent the key points in knitting. Figures 8 to 10 In FIG. 1 , only the yarn feeder 11, the needle bed 1B including the knitting needles 19, and the knitting member 2 are shown. The knitting yarn Y1 supplied from the yarn feeder 11 is a lapping yarn. Figures 8 to 10 In FIG. 1 , the yarn feeder 11 is arranged on the deeper side of the paper surface than the knitting needles 19, and the knitting yarn Y1 supplied from the yarn feeder 11 toward the needle bed gap 1G extends toward the front side of the paper surface.

[0114] In the inlay yarn weaving, the movable cam 5 is arranged in the first position. Figure 7 At timing A, the knitting needle 19 enters the tooth gap 1G through the needle raising cam 91. The knitting member 2 is retracted from the tooth gap 1G. The first pressing portion 31 does not act on the knitting member 2. Figure 8 As shown, the hook 19F of the knitting needle 19 is arranged at a position higher than the knitting yarn Y1. The knitting member 2 is arranged at a position farthest from the tooth gap 1G and does not act on the knitting yarn Y1 at all.

[0115] Figure 7 The timing B is the timing when the swing of the knitting member 2 starts. At this timing B, the knitting needle 19 starts to be pulled down by the yarn bending triangle 92. The knitting member 2 enters the tooth gap 1G, but does not swing downward toward the tooth gap 1G. Fig. 9 As shown, at the timing B, the knitting yarn Y1 passes under the front end 2P of the braiding member 2.

[0116] exist Figure 7 At the timing C, the knitting needle 19 is further pulled down by the yarn bending triangle 92. The knitting member 2 swings toward the lower side of the tooth opening 1G. Fig.10 As shown, the front end 2P of the knitting member 2 contacts the knitting yarn Y1 from above and pulls the knitting yarn Y1 downward. As a result, the knitting yarn Y1 is hooked on the hook 19F and knitted into the knitted fabric.

[0117] The knitting of the knitting example 1 described above can also be used in order to reliably hook the knitting yarn Y1 on the hook 19F when normal knitting is performed after the floating yarn knitting.

[0118] Unlike this example, without weaving the inlay yarn into the knitted fabric, the Figure 7The yarn feeder 11 shown in the figure and the first pressing portion 31 on the left side of the movable cam 5. In this case, it is possible to Figure 7 Before the knitting of the loop of the knitting cam 90 is started, the knitting yarn Y1 is pulled down to a position below the hook 19F. As a result, the knitting yarn Y1 as the inlay yarn is not woven into the knitted fabric but is arranged on the reverse side of the knitted fabric.

[0119]

Knitting Example 2

[0120] based on Figures 11 to 14 A knitting example using the knitting member 2 in switching from normal plating knitting to reverse plating knitting will be described. Fig.11 The observation method and Figure 7 same. Figure 12 to Figure 14 Only the yarn feeders 11 and 12, the needle bed 1B including the knitting needles 19, and the knitting member 2 are shown. The knitting yarn Y1 supplied from the yarn feeder 11 is the main yarn. The knitting yarn Y2 supplied from the yarn feeder 12 is the plating yarn. The yarn feeder 11 is arranged on the side closer to the paper surface than the yarn feeder 12. That is, the yarn feeder 11 moves first in the knitting direction, and the yarn feeder 12 moves later.

[0121] In this knitting example, the movable cam 5 is arranged at the second position. Fig.11 At the timing D, the knitting needle 19 enters the tooth gap 1G through the needle raising cam 91. The knitting member 2 is retracted from the tooth gap 1G. The first pressing portion 31 does not act on the knitting member 2. Fig.12 As shown, the hook 19F of the knitting needle 19 is arranged at a higher position than the knitting yarns Y1 and Y2. The braiding member 2 is arranged at a position farthest from the tooth gap 1G and does not act on the knitting yarns Y1 and Y2 at all. The knitting yarn Y1 as the main yarn is arranged below the knitting yarn Y2 as the plating yarn.

[0122] Fig.11 The timing E is the timing when the swing of the knitting member 2 starts. At this timing E, the pull-down of the knitting needle 19 based on the yarn pressing triangle 94 located above the needle raising triangle 91 ends. The knitting member 2 enters the tooth gap 1G, but does not swing toward the bottom of the tooth gap 1G. Fig.13 As shown, at the timing E, the front end 2P of the braiding member 2 intersects with the lower portion of the hook 19F.

[0123] exist Fig.11 At the timing F, the knitting needle 19 is further pulled down by the yarn bending triangle 92. The knitting member 2 swings toward the lower side of the tooth opening 1G at a timing earlier than that in knitting example 1, and moves in a manner to enter the lower side of the knitting yarns Y1 and Y2. Fig.14As shown, the front end 2P of the knitting member 2 is arranged below the knitting yarns Y1 and Y2. If knitting is further performed from this state, the knitting needle 19 retreats from the tooth gap 1G, and the knitting yarns Y1 and Y2 are pulled downward by the hook 19F in a state where the knitting yarns Y1 and Y2 are placed on the upper part of the front end 2P. At this time, the knitting yarns Y1 and Y2 are switched up and down, so that the normal plating knitting is switched to the reverse plating knitting.

[0124] As described above, according to the flat knitting machine 1 of the embodiment, the use of the knitting member 2 can be changed without replacing the sub-cam system 3 by using the movable cam 5 including the plurality of pressing portions 30 .

[0125] The flat knitting machine 1 of the embodiment is also excellent in weaving efficiency. Unlike the embodiment, for example, in a flat knitting machine having a plurality of main cam systems, if a sub-cam system having a first pressing portion is arranged relative to the first main cam system, and a sub-cam system having a second pressing portion is arranged relative to the second main cam system, the purpose of the weaving component can be changed without replacing the sub-cam systems. However, in this structure, in order to change the purpose of the weaving component, it is sometimes necessary to make the cam slide run redundantly. For example, in the case of making the cam slide run in a manner that the first main cam system moves first and implementing weaving using the second pressing portion, it is necessary to make the cam slide run redundantly in a manner that allows weaving by the second main cam system. In the flat knitting machine 1 of the embodiment, such redundant running is not required. The flat knitting machine 1 of the embodiment can efficiently weave knitted fabrics in accordance with the absence of redundant running of the cam slide 10.

[0126] <Modification>

[0127] based on Fig.15 , Fig.16 A modified example of the above-mentioned flat knitting machine 1 will be described. Fig.15 , Fig.16 The sizes and shapes of components shown are shown for the purpose of clear explanation and do not necessarily represent actual sizes and shapes.

[0128] Fig.15 The movable cam 5 has a first pressing portion 31 and a second pressing portion 32 that are continuous without a boundary line in the FB direction. In this structure, the lower part of one pressing portion 30 functions as the first pressing portion 31, and the upper part functions as the second pressing portion 32. In this structure, the movable cam 5 slides in the FB direction to switch between the first pressing portion 31 and the second pressing portion 32.

[0129] Next, based on Fig.16 A structural example in which the first pressing portion 31 is formed on the fixing cam 4 will be described. Fig.16The first pressing portion 31 of the fixed cam 4 shown in (A) has two inclined portions 311, 312 and a mountain portion 310 in the same manner as in Embodiment 1. On the other hand, the second pressing portion 32 is formed on the movable cam 5. The second pressing portion 32 also has two inclined portions 321, 322 and a mountain portion 320. The second pressing portion 32 is formed in a bridge shape, and a gap for accommodating the first pressing portion 31 is formed on the reverse side (the depth side of the paper) of the second pressing portion 32. In this structure, when the movable cam 5 slides in the direction of the thick arrow, that is, the direction B, the first pressing portion 31 is embedded in the gap on the depth side of the second pressing portion 32. The second pressing portion 32 overlaps with the first pressing portion 31, thereby switching from the first pressing portion 31 to the second pressing portion 32.

[0130] Fig.16 The first pressing portion 31 shown in (B) has Fig.16 The structure is the same as the first pressing part 31 shown in (A) of FIG. On the other hand, two split pieces 32L and 32R constituting a part of the second pressing part 32 are formed in the movable cam 5. The split piece 32L arranged on the left side of the figure is composed of a part of the left side of the mountain part 320 and the inclined part 321. A gap having a shape corresponding to the inclined part 311 of the first pressing part 31 is formed in the area on the back side of the split piece 32L to the right of the dotted line. The split piece 32R arranged on the right side of the figure is composed of a part of the right side of the mountain part 320 and the inclined part 322. A gap having a shape corresponding to the inclined part 312 of the first pressing part 31 is formed in the area on the back side of the split piece 32R to the left of the dotted line. In this structure, when the movable cam 5 slides in the direction of the thick arrow, that is, the B direction, the inclined part 311 and the inclined part 312 are respectively embedded in the gap on the deep side of the split piece 32L and the gap on the deep side of the split piece 32R. As a result, the first pressing part 31 is switched to the second pressing part 32. In this structure, the portion constituting the peak 320 in the split piece 32L, the peak 310 of the first pressing part 31, and the portion constituting the peak 320 in the split piece 32R are connected in series and function as one peak 320.

Claims

1. A flat knitting machine (1), comprising: The needle bed (1F, 1B) supports the knitting needle (19) so that it can move forward and backward freely; A yarn guide (11) for supplying knitting yarn (Y1) to the needle beds (1F, 1B); A cam carriage (10) having a main cam system (9), wherein the main cam system (9) enables the knitting needles (19) to perform knitting actions; a knitting member (2) for assisting the knitting of the knitted fabric on the needle beds (1F, 1B); and The auxiliary cam system (3) is mounted on the cam carriage (10) at a position above the main cam system (9). The sub-cam system (3) causes the braiding member (2) to advance and retreat toward the tooth opening (1G), and causes the braiding member (2) to swing in a direction intersecting the advancing and retreating direction of the braiding member (2). in, The sub-triangle system (3) has: A fixed cam (4) configured to be immovable relative to the cam seat slide (10); A movable triangle (5) is configured to slide freely toward the tooth opening (1G); A displacement mechanism (6) for changing the position of the movable triangle (5) relative to the fixed triangle (4); as well as A plurality of pressing parts (30) press the braided member (2) in a direction intersecting the advancing and retreating direction of the braided member (2), The plurality of pressing portions (30) each press the braided component (2) to a different width. At least one pressing portion (30) among the plurality of pressing portions (30) is formed on the movable triangle (5), The braided component (2) comprises: a plate heel (21), the fixing cam (4) acting on the plate heel (21); and a pressure receiving portion (22), any one of the plurality of pressing portions (30) acting on the pressure receiving portion (22), The pressing portion (30) acting on the pressure receiving portion (22) is switched by the displacement of the movable triangle (5).

2. The flat knitting machine (1) according to claim 1, wherein: The plurality of pressing portions (30) include a first pressing portion (31) and a second pressing portion (32), wherein the width of the second pressing portion (32) is greater than that of the first pressing portion (31). The knitting member (2) swung by the first pressing portion (31) comes into contact with the knitting yarn (Y1) from a position above the knitting yarn (Y1). The knitting member (2) swung by the second pressing portion (32) comes into contact with the knitting yarn (Y1) from a position below the knitting yarn (Y1).

3. The flat knitting machine (1) according to claim 2, wherein: The first pressing portion (31) and the second pressing portion (32) are formed on the movable triangle (5).

4. The flat knitting machine (1) according to claim 1 or 2, wherein: The at least one pressing portion (32) is configured to be freely detachable.

5. The flat knitting machine (1) according to claim 1 or 2, wherein: The pressure receiving portion (22) is arranged in the knitting member (2) at a position closer to the tooth gap (1G) than the butt (21).

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