Needle selection mechanism of flat knitting machine and flat knitting machine

Abstract

The utility model discloses a needle selection mechanism of a flat knitting machine and the flat knitting machine, belongs to the field of flat knitting machines, solves the problem that the existing flat knitting machine can only perform direct selection knitting or pre-selection knitting, and adopts the technical scheme that the needle selection mechanism of the flat knitting machine comprises a triangular bottom plate, and a needle selector is arranged on the triangular bottom plate; the knitting needle assembly comprises a knitting needle, an auxiliary stitch and a stitch selecting stitch, a knitting route and a tucking route are arranged on the triangular bottom plate, the triangular bottom plate is connected with a direct selection return guide block and a pre-selection return guide block, the direct selection return guide block is provided with an avoiding position and a working position, the direct selection return guide block is located on the outer side of the needle selector, and the pre-selection return guide block is connected with the triangular bottom plate. The pre-selection returning guide block is located between the two needle selectors, the needle selection mechanism has a pre-selection state and a direct selection state, in the pre-selection state, the direct selection returning guide block is located at the avoiding position, the needle selection mechanism enables auxiliary stitches to pass through both the knitting route and the tucking route, in the direct selection state, the direct selection returning guide block is located at the working position, and the needle selection mechanism enables the auxiliary stitches to pass through. The needle selection mechanism enables auxiliary stitches to pass through the knitting route. According to the utility model, direct knitting and preselection knitting can be mainly carried out.

Description

Technical Field

[0001] The utility model shows a needle selection mechanism of a flat knitting machine and the flat knitting machine, belonging to the technical field of flat knitting machines. Background Art

[0002] The knitting machine achieves the knitting of fabrics by the regular lifting and lowering of the knitting needles to achieve the actions of yarn padding, closing, looping, bending, looping and looping. When the knitting needles are rising, the coils gradually withdraw from the needle hooks, the needle tongues are opened, and the needle tongues are withdrawn and hung on the needle bar. When the knitting needles are descending, the needle hooks hook the newly placed yarn and pull it to bend into coils. At the same time, the original coils are unhooked, and the new coils pass through the old coils and are connected in series with the old coils. The multiple coil strings formed by many knitting needles are connected to each other to form a woven fabric.

[0003] The part of a knitting machine used to control whether the needles are involved in knitting, tucking, transferring or connecting is called a needle selection mechanism. There are two main types of needle selection mechanisms in existing knitting machines, one is a direct selection type and the other is a pre-selection type. The direct selection type needle selection mechanism selects the needle only once in a knitting row. The direct selection type needle selection mechanism is efficient when performing forming knitting, but the knitting needles corresponding to the selected needle selection feet can only meet one knitting state. For example, when knitting, only knitting or tucking can be done, but not both at the same time; when transferring, only transfer or connecting can be done, but not both at the same time. The knitting function of the machine head of the direct-selection needle selection mechanism is greatly limited, and many tissue patterns cannot be knitted; while the knitting needles corresponding to the needle selection feet selected in the pre-selection needle selection mechanism can meet two knitting states, such as knitting and gathering when knitting, and shifting and connecting when shifting. Therefore, the machine head of the pre-selection needle selection mechanism has a powerful knitting function and rich knitting tissue patterns, but the pre-selection needle selection mechanism has low operating efficiency in the needle closing stage of forming knitting; and the knitting machine in the prior art can only perform direct-selection knitting or pre-selection knitting. Utility Model Content

[0004] The utility model aims to solve the problem that the existing flat knitting machines can only perform direct selection weaving or pre-selection weaving, and for this purpose provides a needle selection mechanism of a flat knitting machine and a flat knitting machine, which can perform both direct selection weaving and pre-selection weaving.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A needle selection mechanism of a knitting machine comprises a triangular base plate for guiding the movement of a knitting needle assembly, at least two needle selectors cooperating with the knitting needle assembly are arranged on the triangular base plate, the knitting needle assembly comprises a knitting needle, an auxiliary pin and a needle selection pin, the triangular base plate has a knitting route for enabling the auxiliary pin to reach a knitting position and a tuck route for enabling the auxiliary pin to reach a tuck position, the triangular base plate is movably connected with a direct selection return guide block and a needle clearing cam, and is fixedly connected with a pre-selection return guide block for enabling the needle selection pin to expose a needle groove, the needle clearing cam has a first position exposed from the triangular base plate and a second position retracted into the triangular base plate, the direct selection return guide block and the needle clearing cam are movably connected with the triangular base plate, and a pre-selection return guide block is fixedly connected with the pre-selection return guide block for enabling the needle selection pin to expose a needle groove, the needle clearing cam has a first position exposed from the triangular base plate and a second position retracted into the triangular base plate, and the direct selection return guide block and the needle clearing cam are movably connected with the triangular base plate, and the direct selection return guide block and the needle clearing cam are ... and the pre-selection return guide block The positioning guide block has an avoidance position for avoiding the selected needle pin and a working position for making the selected needle pin expose the needle slot. The direct selection return guide block is located on the outside of the needle selector, and the pre-selection return guide block is located between the two needle selectors. The needle selection mechanism has a pre-selection state and a direct selection state. In the pre-selection state, the direct selection return guide block is in the avoidance position, the needle clearing triangle is in the second position, and the needle selection mechanism allows auxiliary stitches to pass through both the knitting route and the tuck route. In the direct selection state, the direct selection return guide block is in the working position, the needle clearing triangle is in the first position and restricts the auxiliary stitches from entering the tuck route, and the needle selection mechanism allows auxiliary stitches to pass through the knitting route.

[0007] The beneficial effects of adopting the utility model are:

[0008] The needle selection mechanism described in the utility model comprises a triangular bottom plate, on which a direct selection return guide block and a pre-selection return guide block are arranged, and the needle selection mechanism has a direct selection state and a pre-selection state, and when the needle selection mechanism is in the direct selection state, the direct selection return guide block is in a working position, and in the process of the knitting needle assembly moving along the triangular bottom plate, the selection needle foot passes through the direct selection return guide block, and exposes the needle groove under the action of the direct selection return guide block, the needle clearing triangle is in a first position and restricts the auxiliary needle foot from entering the tuck loop route, and then passes through the needle selector, and the needle selector selects the knitting needle assembly that needs to participate in knitting, and the selected knitting needle assembly guides the auxiliary needle foot to move along the knitting route to the knitting position under the action of the needle selection mechanism, and at the same time the auxiliary needle foot pushes the knitting needle to the required position for knitting, so that the knitting needle participates in the knitting work, and the work efficiency during knitting is higher;

[0009] After that, the needle assembly participating in knitting guides the auxiliary stitches along the knitting route to move to the knitting position under the action of the needle selection mechanism. The knitting needle assembly participates in the tucking position and guides the auxiliary stitches to move to the tucking position along the tucking route under the action of the needle selecting mechanism, so that the knitting needle assembly can satisfy two knitting states at the same time, and thus has a more powerful knitting function and can weave richer patterns. The needle selecting mechanism in the utility model has two states, direct selection and pre-selection, so that the knitting needle assembly can perform direct selection knitting and pre-selection knitting to meet different knitting needs, so that the knitting machine has a wider range of applications, and at the same time can also reduce the use of different types of knitting machines, which is beneficial to reducing knitting costs.

[0010] Preferably, the triangular bottom plate is provided with a control mechanism, which is in transmission connection with the direct selection homing guide block and controls the direct selection homing guide block to move along the vertical direction of the triangular bottom plate, so that the direct selection homing guide block switches between the avoidance position and the working position. The above technical solution is adopted.

[0011] Preferably, a first channel is provided between the direct selection return guide block and the triangular base plate for the tail end of the selection pin to pass through, and a first protrusion is provided on the side of the direct selection return guide block facing the triangular base plate. When the direct selection return guide block is in the avoidance position, the first protrusion avoids the selection pin. When the direct selection return guide block is in the working position, the first protrusion acts on the tail end of the selection pin and guides the selection pin to expose the needle groove.

[0012] Preferably, first guiding slopes for guiding the needle selection pins are provided on both sides of the first protrusion.

[0013] Preferably, a second passage is provided between the preselection homing guide block and the triangular base plate for the tail end of the selection needle pin to pass through, and a second protrusion is provided on the side of the preselection homing guide block facing the triangular base plate, and the second protrusion is used to guide the selection needle pin to expose the needle groove.

[0014] Preferably, the triangular base plate is provided with an auxiliary needle track for guiding the movement of auxiliary stitches, and the auxiliary needle track is provided with a left retaining guard, a right retaining guard and a needle raising triangle assembly. The needle raising triangle assembly is located between the left retaining guard and the right retaining guard, and the needle raising triangle assembly is used to form a knitting route and a loop collection route.

[0015] Preferably, the auxiliary stitch also has an initial position and a preselected needle position. When the auxiliary stitch is in the initial position, the butt of the auxiliary stitch is located at the lower side of the needle raising triangle assembly, and the auxiliary stitch reaches the collection position from the preselected needle position through the needle raising triangle assembly.

[0016] Preferably, the needle cleaning triangle comprises a left needle cleaning triangle and a right needle cleaning triangle. The left needle cleaning triangle is located on the side of the left retaining guard mountain close to the needle raising triangle assembly, and the right needle cleaning triangle is located on the side of the right retaining guard mountain close to the needle raising triangle assembly. When the needle cleaning triangle is in the first position, it is used to move the auxiliary stitch from the preselected needle position to the initial position.

[0017] Preferably, the triangular base plate is provided with a needle selection needle track for guiding the movement of the needle selection foot, the needle selection needle track comprises an upper needle selection needle track and a lower needle selection needle track, and the needle selector is located between the upper needle selection needle track and the lower needle selection needle track.

[0018] A flat knitting machine comprises a needle selection mechanism and a knitting needle assembly, wherein the needle selection mechanism adopts the needle selection mechanism of a flat knitting machine as described in any one of the above items.

[0019] Other features and advantages of the present invention will be disclosed in detail in the following specific implementations and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Figure 1 This is a front view of the triangular base plate in the first embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the machine head moving to the right in the preselected state in the first embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the machine head moving to the left in the preselected state in the first embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the machine head moving to the left in the direct selection state in the first embodiment of the utility model;

[0025] Figure 5 It is a side view of the direct selection homing guide block in the first embodiment of the utility model when it is in the avoidance position;

[0026] Figure 6 It is a side view of the preselected homing guide block in the first embodiment of the utility model when it is in the working position;

[0027] Figure 7 This is a schematic diagram of the structure of the direct selection homing guide block in the first embodiment of the utility model;

[0028] Figure 8It is a structural schematic diagram of the pre-selected homing guide block in the first embodiment of the utility model.

[0029] Reference numerals: 1 triangle bottom plate, 111 left side retaining guard, 112 middle retaining guard, 113 right side retaining guard, 114 left needle starting triangle, 115 right needle starting triangle, 116 left circle triangle, 117 right circle triangle, 118 pre-circle triangle, 119 left needle clearing triangle, 110 right needle clearing triangle, 121 left side needle selection upper guard, 122 middle needle selection upper guard, 123 right side needle selection upper guard, 124 needle selection guard, 131 left side needle selection lower guard, 132 middle needle selection lower guard, 133 right side needle selection lower guard, 1 41 left needle push triangle, 142 right needle push triangle, 15 direct selection return guide block, 151 first protrusion, 152 first guide slope, 153 first channel, 154 transmission assembly, 16 pre-selection return guide block, 161 second protrusion, 162 second guide slope, 17 needle selector, 2 needle assembly, 21 stitch selection foot, 211 first needle butt, 2111 first moving route, 212 second needle butt, 2121 second moving route, 213 needle tail, 22 auxiliary stitch, 221 third needle butt, 2211 third moving route, 23 needle groove. DETAILED DESCRIPTION

[0030] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Embodiment 1:

[0035] like Figures 1 to 8 As shown, this embodiment shows a needle selection mechanism of a knitting machine, including a triangular base plate 1 for guiding the movement of a knitting needle assembly 2, wherein the knitting needle assembly 2 includes knitting needles, auxiliary stitches 22 and selection stitches 21, and the triangular base plate 1 is provided with an auxiliary needle track for guiding the movement of the auxiliary stitches 22 and a selection needle track for guiding the movement of the selection needle foot 21, the selection needle track includes an upper selection needle track and a lower selection needle track, and a plurality of needle selectors 17 are provided between the upper selection needle track and the lower selection needle track.

[0036] like Figure 1 As shown, in the present embodiment, the auxiliary needle path is provided with a left-side retaining guard 111, a middle retaining guard 112, a right-side retaining guard 113, a left needle cleaning triangle 119, a right needle cleaning triangle 110 and a needle raising triangle assembly, wherein two needle raising triangle assemblies and a control mechanism for driving the needle raising triangle assembly are provided on the triangle base plate 1, and the two needle raising triangle assemblies are respectively located between the left-side retaining guard 111 and the middle retaining guard 112, and between the middle retaining guard 112 and the right-side retaining guard 113, the left needle cleaning triangle 119 is located between the left-side retaining guard 111 and the needle raising triangle assembly, and the right needle cleaning triangle 110 is located between the right-side retaining guard and the needle raising triangle assembly, and the auxiliary needle path passes through the left-side retaining guard, the left needle cleaning triangle 119, the needle raising triangle assembly, the middle retaining guard 112, the needle raising triangle assembly, the right needle cleaning triangle 110 and the right-side retaining guard 113 from left to right.

[0037] like Figure 1As shown, in the present embodiment, the upper needle selection needle path described in the present embodiment is provided with a left needle selection upper protection mountain 121, a middle needle selection upper protection mountain 122, a right needle selection upper protection mountain 123 and a needle selection protection mountain 124, and the upper needle selection needle path passes through the left needle selection upper protection mountain 121, the needle selection protection mountain 124, the middle needle selection upper protection mountain 122 and the right needle selection upper protection mountain 123 from left to right in sequence; the lower needle selection needle path is provided with a left needle selection lower protection mountain 131, a middle needle selection lower protection mountain 132, a right needle selection lower protection mountain 133 and two needle pusher assemblies, one of the two needle pusher assemblies is located between the left needle selection lower protection mountain 131 and the middle needle selection lower protection mountain 132, and the other is located between the middle needle selection lower protection mountain 132 and the right needle selection lower protection mountain 133, and the lower needle selection needle path passes through the left needle selection lower protection mountain 131, the needle pusher assembly, the middle needle selection lower protection mountain 132, the needle pusher assembly and the right needle selection lower protection mountain 133 from left to right in sequence.

[0038] In addition, in this embodiment, two groups of needle selectors 17 are provided on the triangular base plate 1, each group has two needle selectors 17, one of which is located between the left needle selector lower guard 131 and the needle push assembly, and the other needle selector 17 is located between the needle push assembly and the middle needle selector lower guard 132, and a direct selection return guide block 15 and a pre-selection return guide block 16 are provided on the lower side of the triangular base plate 1, wherein the direct selection return guide block 15 is located on the left side of the left needle selector lower guard 131, and the pre-selection return guide block 16 is located between the two needle selectors 17.

[0039] The needle raising triangle assembly in this embodiment includes a left needle raising triangle 114, a right needle raising triangle 115, a left ring triangle 116, a right ring triangle 117 and a pre-ring triangle 118, wherein the left ring triangle 116 and the right ring triangle 117 are symmetrically arranged on both sides of the pre-ring triangle 118, and the left needle raising triangle 114 and the right needle raising triangle 115 are symmetrically arranged on both sides of the left ring triangle 116 and the right ring triangle 117, and the needle raising triangle assembly is connected to the control mechanism in a transmission manner, and the control mechanism drives the needle raising triangle assembly to move vertically along the triangle bottom plate 1, thereby controlling the left needle raising triangle Triangle 114, right needle starting triangle 115, left connecting circle triangle 116, right connecting circle triangle 117 and pre-connecting circle triangle 118 are exposed from the triangle bottom plate 1 or retracted into the triangle bottom plate 1; the push-pin assembly includes a left push-pin triangle 141 and a right push-pin triangle 142, and the pre-selected return guide block 16 is located between the left push-pin triangle 141 and the right push-pin triangle 142. The push-pin assembly is connected to the control mechanism in a transmission manner, and the control mechanism drives the push-pin assembly to move vertically along the triangle bottom plate 1, thereby controlling the left push-pin triangle 141 and the right push-pin triangle 142 to be exposed from the triangle bottom plate 1 or retracted into the triangle bottom plate 1.

[0040] like Figures 5 to 8As shown, in this embodiment, there is a first channel 153 between the direct selection homing guide block 15 and the triangular bottom plate 1 for the needle tail 213 of the selection pin 21 to pass through, and the direct selection homing guide block 15 is provided with a first protrusion 151 on the side facing the triangular bottom plate 1, and first guiding inclined surfaces 152 for guiding the selection pin 21 are provided on both sides of the first protrusion 151. The direct selection homing guide block 15 has an avoidance position and a working position. The direct selection homing guide block 15 is connected to the control mechanism through a transmission assembly 154, and the control mechanism drives the direct selection homing guide block 15 to move along the vertical direction of the triangular bottom plate 1, so that the direct selection homing guide block 15 is in the avoidance position and the working position. Switching between working positions, when the direct selection return guide block 15 is in the avoidance position, the first protrusion 151 avoids the selection pin 21, and when the direct selection return guide block 15 is in the working position, the first protrusion 151 acts on the tail end of the selection pin 21 and guides the selection pin 21 to expose the needle groove 23; the pre-selection return guide block 16 is fixed to the triangular base plate 1, and a second channel for the tail end of the selection pin 21 to pass through is provided between the pre-selection return guide block 16 and the triangular base plate 1, and a second protrusion 161 is provided on the side of the pre-selection return guide block 16 facing the triangular base plate 1, and second guide slopes 162 for guiding the selection pin 21 are provided on both sides of the second protrusion 161.

[0041] The needle selection pin 21 includes a needle tail 213, a first needle butt 211 and a second needle butt 212. The first needle butt 211 moves along the upper needle selection needle track and forms a first moving route 2111, and the second needle butt 212 moves along the lower needle selection needle track. When the needle selection pin 21 is in the needle groove 23, the second needle butt 212 is in the needle groove 23, and the needle selection pin 21 does not contact the lower needle selection needle track during the movement. After the needle tail 213 of the needle selection pin 21 rotates toward the triangular base plate 1 under the action of the direct selection return guide block 15 or the pre-selection return guide block 16, the first needle butt 211 is exposed from the needle groove 23, thereby causing the second needle butt 212 to move along the lower needle selection needle track and form a second moving route 2121; the auxiliary needle pin 22 includes a third needle butt 221, and the third needle butt 221 moves along the auxiliary needle track and forms a third moving route 2211.

[0042] The needle selection mechanism described in this embodiment has a direct selection state and a preselection state, and the auxiliary stitch 22 has an initial position, a preselection needle position, a knitting position and a tuck position. When the auxiliary stitch 22 is in the initial position, the selection stitch 21 is also in the initial position, and the lower end of the auxiliary stitch 22 is against the upper end of the selection stitch 21. When the auxiliary stitch 22 is in the preselection needle position, the auxiliary stitch 22 pushes the knitting needle to be in the preselection needle state; when the auxiliary stitch 22 is in the knitting position, the auxiliary stitch 22 pushes the knitting needle to be in the knitting state, so that the knitting needle participates in the knitting; when the auxiliary stitch 22 is in the tuck position, the auxiliary stitch 22 pushes the knitting needle to be in the tuck state, so that the knitting needle participates in the tuck.

[0043] When the needle selection mechanism is in the preselection state:

[0044] This embodiment takes the compilation system on the left as an example. Figure 2 As shown, when the needle selection mechanism is in the preselection state, the left needle pushing cam 141, the right loop connecting cam 117 and the left needle clearing cam 119 are retracted into the cam base plate 1, and the direct selection return guide block 15 is in the avoidance position. In this embodiment, the head of the knitting machine moves to the right, that is, the knitting needle assembly 2 moves to the left relative to the cam base plate 1. At the beginning, since the needle selection foot 21 is in the needle groove 23, that is, the second needle butt 212 is in the needle groove 23 and does not contact the lower needle selection needle track, the auxiliary needle foot 22 and the needle selection foot 21 are both in the initial position. When the needle assembly 2 moves to the preselection return guide block 16, the needle tail 213 of the needle selection foot 21 enters the second channel and contacts the second protrusion 161. Under the guidance of the second guide bevel 162, the needle tail 213 rotates toward the cam base plate 1 to expose the second needle butt 212 in the needle groove 23 and move along the lower needle selection needle track. After the needle assembly 2 moves to the needle selector 17, the needle selector 17 selects the needle selection pin 21 corresponding to the knitting needle that needs to participate in weaving and tucking, and the other needle selection pins 21 are pushed back into the needle groove 23. The selected needle selection pin 21 keeps the second needle butt 212 exposed from the needle groove 23. Then, the needle selection pin 21 rises to the pre-selected needle position under the action of the lower needle selection guard 131 on the left side. At the same time, the needle selection pin 21 pushes the auxiliary needle pin 22 to rise to the pre-selected needle position, and the auxiliary needle 22 pushes the knitting needle to be in the pre-selected needle state; then, the needle selection pin 21 returns to the initial position under the action of the upper needle selection guard 121 on the left side. Since the direct selection return guide block 15 is in the avoidance position, the needle tail 213 of the needle selection pin 21 passes along the first channel 153 and does not contact the first protrusion 151. The auxiliary needle 22 returns to the initial position under the action of the left retaining guard 111, and the knitting needle is still in the pre-selected needle state.

[0045] like Figure 3As shown, when the knitting needle assembly 2 is at the leftmost end of the triangular base plate 1, the machine head changes to the left, that is, the knitting needle assembly 2 moves to the right relative to the triangular base plate 1. Since the direct selection return guide block 15 is in the avoidance position, the needle tail 213 of the needle selection pin 21 passes along the first channel 153 and does not contact the first protrusion 151. The needle selection pin 21 rises to the pre-selected needle position under the action of the left needle selection lower guard 131. At the same time, the needle selection pin 21 pushes the auxiliary needle pin 22 to rise to the pre-selected needle position. The needle selection pin 21 returns to the initial position under the action of the left needle selection upper guard 121. At this time, the auxiliary needle pin 22 and the knitting needle are still in the pre-selected needle position. Then the needle selector 17 works again to select the needle selection pin 21 corresponding to the knitting needle that needs to participate in knitting, and the needle selection pin 21 corresponding to the knitting needle participating in the tuck is pushed back to the needle groove 23, and the auxiliary needle 22 corresponding to the knitting needle participating in the tuck is still in the pre-selected needle position. Position, that is, at this time, the needle selection pin 21 corresponding to the knitting needle participating in the knitting moves along the lower needle selection needle track, and the selected needle selection pin 21 rises under the drive of the left needle pushing triangle 141, and the auxiliary pin 22 rises to the knitting position along the left needle starting triangle 114 under the push of the needle selection pin 21, and at the same time, the auxiliary pin 22 pushes the knitting needle to be in a knitting state, so that the knitting needle participates in the knitting, and then the needle selection pin 21 returns to the initial position under the action of the needle selection guard 124; in addition, since the auxiliary pin 22 corresponding to the knitting needle participating in the collection of stitches is still in the pre-selected needle position, the auxiliary pin 22 rises to the collection position under the action of the pre-circle triangle 118, the right circle triangle 117 and the right needle starting triangle 115, and at the same time, the auxiliary pin 22 pushes the knitting needle to be in a collection state, so that the knitting needle participates in the collection of stitches, and then all the auxiliary pins 22 return to the initial position under the action of the middle retaining guard 112. Combined with Figure 3 , the solid line track in the third moving route is the tuck route, and the dotted line track is the knitting route.

[0046] When the needle selection mechanism is in the direct selection state:

[0047] This embodiment takes the compilation system on the left as an example. Figure 4As shown, when the needle selection mechanism is in the direct selection state, the right needle pushing cam 142 and the left loop cam 116 are both retracted into the cam bottom plate 1, the left needle clearing cam 119 extends out of the cam bottom plate 1, and the direct selection return guide block 15 is in the working position. In this embodiment, the head of the knitting machine moves to the left, that is, the knitting needle assembly 2 moves to the right relative to the cam bottom plate 1. When the knitting needle assembly 2 moves to the direct selection return guide block 15, the needle tail 213 of the needle selection foot 21 enters the first channel 153 and contacts the first protrusion 151. Under the action of the first guide slope 152, the needle tail 213 rotates toward the cam bottom plate 1, so that the second needle butt 212 is exposed in the needle groove 23 and moves along the lower needle selection needle path. The needle selection foot 21 rises to the pre-selected needle position under the action of the left needle selection lower guard 131, and at the same time The stitch selection pin 21 pushes the auxiliary stitch 22 to rise to the pre-selected needle position, and the stitch selection pin 21 returns to the initial position under the action of the left needle selection upper guard 121, and the auxiliary stitch 22 returns to the initial position under the action of the left needle clearing triangle 119, and then the needle selector 17 works, and the needle selector 17 selects the stitch selection pin 21 corresponding to the knitting needle that needs to participate in knitting, and the stitch selection pin 21 rises under the action of the left needle pushing triangle 141, and the auxiliary stitch 22 rises to the knitting position along the left needle starting triangle 114 under the push of the stitch selection pin 21, and at the same time, the auxiliary stitch 22 pushes the knitting needle to be in a knitting state, so that the knitting needle participates in knitting, and then the stitch selection pin 21 returns to the initial position under the action of the needle selection guard 124, and the auxiliary stitch 22 returns to the initial position under the action of the middle retaining guard 112.

[0048] The needle selection mechanism described in this embodiment has two states: direct selection and pre-selection, which can enable the knitting needle assembly 2 to perform direct selection weaving and pre-selection weaving to meet different weaving needs, so that the knitting machine has a wider range of applications. At the same time, it can also reduce the use of different types of knitting machines, which is beneficial to reducing weaving costs.

[0049] Embodiment 2:

[0050] This embodiment shows a knitting machine, including a needle selection mechanism and a knitting needle assembly 2, wherein the needle selection mechanism adopts a needle selection mechanism of a knitting machine as described in the first embodiment.

[0051] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A needle selection mechanism for a flat knitting machine, comprising a triangular base plate for guiding the movement of a knitting needle assembly, the triangular base plate being provided with at least two needle selectors cooperating with the knitting needle assembly, the knitting needle assembly comprising a knitting needle, an auxiliary pin and a needle selection pin, characterized in that: The cam base plate is provided with a knitting route for enabling the auxiliary stitches to reach the knitting position and a tuck route for enabling the auxiliary stitches to reach the tuck position. The cam base plate is movably connected with a direct selection return guide block and a needle clearing cam, and is fixedly connected with a pre-selection return guide block for enabling the selected stitches to expose the needle slot. The needle clearing cam has a first position exposing the cam base plate and a second position retracted into the cam base plate. The direct selection return guide block has a avoidance position for avoiding the selected stitches and a working position for enabling the selected stitches to expose the needle slot. The direct selection return guide block is located at the outer side of the needle selector, and the pre-selection return guide block is located between the two needle selectors. The needle selection mechanism has a pre-selection state and a direct selection state. In the pre-selection state, the direct selection return guide block is in the avoidance position, and the needle clearing cam is in the second position. The needle selection mechanism allows the auxiliary stitches to pass through both the knitting route and the tuck route. In the direct selection state, the direct selection return guide block is in the working position, the needle clearing cam is in the first position and restricts the auxiliary stitches from entering the tuck route, and the needle selection mechanism allows the auxiliary stitches to pass through the knitting route.

2. The needle selection mechanism of a flat knitting machine according to claim 1, characterized in that: The triangular base plate is provided with a control mechanism, which is transmission-connected to the direct-selection homing guide block and controls the direct-selection homing guide block to move in the vertical direction of the triangular base plate so that the direct-selection homing guide block switches between the avoidance position and the working position.

3. The needle selection mechanism of a flat knitting machine according to claim 1, characterized in that: A first channel is provided between the direct selection return guide block and the triangular base plate for the tail end of the selection pin to pass through, and a first protrusion is provided on the side of the direct selection return guide block facing the triangular base plate. When the direct selection return guide block is in the avoidance position, the first protrusion avoids the selection pin. When the direct selection return guide block is in the working position, the first protrusion acts on the tail end of the selection pin and guides the selection pin to expose the needle groove.

4. The needle selection mechanism of a flat knitting machine according to claim 3, characterized in that: First guiding slopes for guiding the needle selection pins are provided on both sides of the first protrusion.

5. The needle selection mechanism of a flat knitting machine according to claim 1, characterized in that: A second passage for the tail end of the selection pin to pass through is provided between the preselection homing guide block and the triangular bottom plate, and a second protrusion is provided on the side of the preselection homing guide block facing the triangular bottom plate, and the second protrusion is used to guide the selection pin to expose the needle groove.

6. The needle selection mechanism of a flat knitting machine according to claim 1, characterized in that: The triangle base plate is provided with an auxiliary needle track for guiding the movement of auxiliary stitches, and the auxiliary needle track is provided with a left retaining guard, a right retaining guard and a needle raising triangle assembly. The needle raising triangle assembly is located between the left retaining guard and the right retaining guard, and the needle raising triangle assembly is used to form a knitting route and a tuck route.

7. The needle selection mechanism of a flat knitting machine according to claim 6, characterized in that: The auxiliary stitch also has an initial position and a preselected needle position. When the auxiliary stitch is in the initial position, the butt of the auxiliary stitch is located at the lower side of the needle raising triangle assembly, and the auxiliary stitch reaches the tuck position from the preselected needle position through the needle raising triangle assembly.

8. The needle selection mechanism of a flat knitting machine according to claim 7, characterized in that: The needle cleaning triangle includes a left needle cleaning triangle and a right needle cleaning triangle. The left needle cleaning triangle is located on the side of the left retaining guard mountain close to the needle raising triangle assembly, and the right needle cleaning triangle is located on the side of the right retaining guard mountain close to the needle raising triangle assembly. When the needle cleaning triangle is in the first position, it is used to move the auxiliary stitch from the preselected needle position to the initial position.

9. The needle selection mechanism of a flat knitting machine according to claim 1, characterized in that: The triangular bottom plate is provided with a needle selection needle track for guiding the movement of the needle selection foot, the needle selection needle track comprises an upper needle selection needle track and a lower needle selection needle track, and the needle selector is located between the upper needle selection needle track and the lower needle selection needle track.

10. A flat knitting machine, comprising a needle selection mechanism and a knitting needle assembly, characterized in that: The needle selection mechanism adopts the needle selection mechanism of a knitting machine as described in any one of claims 1 to 9.

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