Needle turning triangle assembly driving mechanism of flat knitting machine triangle bottom plate

Abstract

The utility model discloses a needle turning triangle assembly driving mechanism of a triangle bottom plate of a flat knitting machine, which comprises a needle turning triangle, a left needle raising triangle and a right needle raising triangle which are arranged on the triangle bottom plate, the triangles are all provided with guide columns, the guide columns are respectively connected in guide holes of a needle turning fixing plate, and the guide column of the left needle raising triangle is provided with a left needle raising swing block. A guide column of the right needle raising triangle is provided with a right needle raising swing block, the driving wheel comprises a first driving convex part and a second driving convex part, the first driving convex part drives the left needle raising swing block to enable the left needle raising triangle to retract into the triangle bottom plate, and the second driving convex part drives the right needle raising swing block to enable the right needle raising triangle to retract into the triangle bottom plate; the needle turning triangle is provided with a needle turning linkage plate, the needle turning linkage plate comprises a left needle raising linkage part and a right needle raising linkage part, the left needle raising triangle drives the needle turning triangle to retract into the triangle bottom plate through the left needle raising linkage part, and the right needle raising triangle drives the needle turning triangle to retract into the triangle bottom plate through the right needle raising linkage part; the triangles are provided with pressure springs so as to reset and protrude out of the triangular bottom plate. According to the needle turning mechanism, the needle turning triangle is linked with the left needle raising triangle or the right needle raising triangle through the needle turning linkage plate, so that the needle turning triangle can be independently retracted into the triangle bottom plate while knitting, mold adjustment and needle turning of the needle turning triangle are facilitated, and convenience is provided for maintenance of a firing pin.

Description

Technical Field

[0001] The utility model belongs to the technical field of cam bottom plates of flat knitting machines, and in particular relates to a needle transfer cam assembly driving mechanism of a cam bottom plate of a flat knitting machine. Background Art

[0002] The cam base is an important part of the computerized flat knitting machine. It is used to control the trajectory of the knitting needles and realize the actions of yarn padding, closing, looping, bending, looping and looping, so as to complete the knitting. At present, the structure design of the needle turning cam assembly on the cam base is complex, which not only increases the production cost, but also increases the failure rate. It is also inconvenient to assemble and easily affects the knitting quality. In particular, the needle turning cam assembly is prone to needle collision, which increases the production cost; and after the needle is hit, it is not easy to repair.

[0003] For example, CN115387015A discloses a needle pushing, weaving and loop shifting control mechanism for a knitting needle flat knitting machine, comprising a triangle bottom plate and a driver mounted on the triangle bottom plate, a needle pushing triangle assembly and a loop shifting triangle assembly are arranged on the triangle bottom plate, the needle pushing triangle assembly comprises a left needle pushing triangle and a right needle pushing triangle which are arranged along the vertical surface of the triangle bottom plate, the loop shifting triangle assembly (the same as the needle turning triangle assembly) comprises a left switching triangle, a right switching triangle and a loop shifting triangle which are arranged along the vertical surface of the triangle bottom plate, and the two ends of the driver respectively drive the needle pushing triangle assembly and the loop shifting triangle assembly to move along the vertical surface of the triangle bottom plate, so as to realize that the needle pushing triangle assembly and the loop shifting triangle assembly protrude or retract into the triangle. Base plate; the surface of the triangular base plate is provided with a transfer ring support and a transfer ring transmission assembly connected to the driver transmission, the transfer ring triangle seat is provided with a transfer ring guide post hole for the left switching triangle, the right switching triangle and the transfer ring triangle to slide, and the transfer ring transmission assembly is respectively connected to the left switching triangle, the right switching triangle and the transfer ring triangle; the transfer ring transmission assembly includes a lifting slide that moves back and forth horizontally along the triangular base plate, and the lifting slide is provided with a slide groove, and the slide groove guides the left switching triangle, the right switching triangle and the transfer ring triangle to move along the vertical surface of the triangular base plate respectively; the left switching triangle, the right switching triangle and the transfer ring triangle are all provided with a connecting rod that cooperates with the slide groove along the triangular base plate, and the middle part of the connecting rod is rotatably connected to the transfer ring support. Although the control structure can control the push pin triangle assembly and the transfer ring triangle assembly to move along the vertical surface of the triangular base plate through a driver, it reduces the power components and control components and reduces the manufacturing cost; but it is not easy to disassemble and assemble, and the left switching triangle, the right switching triangle and the transfer ring triangle are of an integral linkage design. After the needle is struck, it is not easy to strike the needle, and the maintenance efficiency is slow. Summary of the invention

[0004] The utility model aims at a needle transfer triangle assembly driving mechanism of a triangle bottom plate of a flat knitting machine. The driving mechanism adopts a partial linkage design, which is not only simple and stable, but also the needle transfer triangle can move independently along the vertical plane of the triangle bottom plate, and is easy to repair the needle.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model is:

[0006] The needle transfer cam assembly driving mechanism of the cam bottom plate of the flat knitting machine comprises a cam bottom plate, a needle transfer fixing plate and a needle transfer motor, the needle transfer fixing plate is provided with a needle transfer guide hole, a left needle start guide hole and a right needle start guide hole, the cam bottom plate is provided with a needle transfer cam, a left needle start cam and a right needle start cam, the needle transfer cam is provided with a needle transfer guide post, the needle transfer guide post is connected in the needle transfer guide hole, the left needle start cam is provided with a left needle start guide post, the left needle start guide post is connected in the left needle start guide hole, the right needle start cam is provided with a right needle start guide post, the right needle start guide post is connected in the right needle start guide hole;

[0007] The left needle guide pin is provided with a left needle swing block, the right needle guide pin is provided with a right needle swing block, the needle transfer motor is provided with a driving wheel, the driving wheel includes a first driving protrusion and a second driving protrusion, the first driving protrusion and the second driving protrusion are not at the same angle of the driving wheel, the first driving protrusion is used to drive the left needle swing block to retract the left needle triangle into the triangle bottom plate, and the second driving protrusion is used to drive the right needle swing block to retract the right needle triangle into the triangle bottom plate;

[0008] The needle transfer cam is provided with a needle transfer linkage plate, and the needle transfer linkage plate includes a left needle starting linkage part and a right needle starting linkage part. The left needle starting cam drives the needle transfer cam to retract into the cam bottom plate through the left needle starting linkage part, and the right needle starting cam drives the needle transfer cam to retract into the cam bottom plate through the right needle starting linkage part.

[0009] The needle turning triangle is provided with a needle turning pressure spring, and the needle turning pressure spring is used to reset the needle turning triangle and protrude from the triangle bottom plate. The left needle triangle is provided with a left needle pressure spring, and the left needle pressure spring is used to reset the left needle triangle and protrude from the triangle bottom plate. The right needle triangle is provided with a right needle pressure spring, and the right needle pressure spring is used to reset the right needle triangle and protrude from the triangle bottom plate.

[0010] The needle transfer guide post passes through the needle transfer guide hole, the left needle start-up guide post passes through the left needle start-up guide hole, the right needle start-up guide post passes through the right needle start-up guide hole, the needle transfer fixing plate is located between the needle transfer linkage plate and the triangular bottom plate, the needle transfer linkage plate is connected to the needle transfer guide post, the left needle start-up linkage part is arranged at the end of the left needle start-up guide post, and the right needle start-up linkage part is arranged at the end of the right needle start-up guide post.

[0011] When the left needle starting triangle is retracted into the triangle base plate, the left needle starting guide post pushes the left needle starting linkage part at the end of the left needle starting guide post, thereby driving the needle turning guide post to move, so that the left needle starting triangle drives the needle turning triangle to be retracted into the triangle base plate through the left needle starting linkage part; when the right needle starting triangle is retracted into the triangle base plate, the right needle starting guide post pushes the right needle starting linkage part at the end of the right needle starting guide post, thereby driving the needle turning guide post to move, so that the right needle starting triangle drives the needle turning triangle to be retracted into the triangle base plate through the right needle starting linkage part.

[0012] The needle turning compression spring is sleeved on the needle turning guide column, a needle turning compression spring plate is arranged on the needle turning guide column, and the needle turning compression spring is supported between the needle turning compression spring plate and the needle turning fixed plate.

[0013] The left needle compression spring is sleeved on the left needle guide column, and a left needle compression spring plate is arranged on the left needle guide column. The left needle compression spring plate is provided with a left guide column hole for the left needle guide column to pass through, and the left needle compression spring is supported between the left needle compression spring plate and the left needle triangle.

[0014] The right needle compression spring is sleeved on the right needle guide column, and a right needle compression spring plate is arranged on the right needle guide column. The right needle compression spring plate is provided with a right guide column hole for the right needle guide column to pass through, and the right needle compression spring is supported between the right needle compression spring plate and the right needle triangle.

[0015] The triangular base plate is provided with a needle turning motor seat, the needle turning motor is arranged on the needle turning motor seat, the needle turning motor seat includes a motor seat vertical plate, the motor seat vertical plate is connected between the triangular base plate and the needle turning fixed plate, and a plurality of support columns are also arranged between the triangular base plate and the needle turning fixed plate.

[0016] The right needle compression spring plate and the left needle compression spring plate constitute a needle compression spring plate.

[0017] The needle-lifting compression spring plate is connected to the motor seat vertical plate.

[0018] The left-starting needle swing block is provided with a left swing block bearing pin, and the first driving protrusion drives the left-starting needle swing block through the left swing block bearing pin; the right-starting needle swing block is provided with a right swing block bearing pin, and the second driving protrusion drives the right-starting needle swing block through the right swing block bearing pin.

[0019] The utility model links the needle transfer cam with the left needle start cam or the right needle start cam through the needle transfer linkage plate, which is convenient for the needle transfer cam to weave, adjust the mold and transfer the needles. At the same time, the needle transfer cam can also be retracted into the cam bottom plate separately, which provides convenience for the repair of the striker. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 This is a schematic diagram of the structure of the utility model from the first viewing angle.

[0022] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle.

[0023] Figure 3 This is a schematic structural diagram of the utility model from a third viewing angle.

[0024] Figure 4It is a partial structural schematic diagram of the utility model.

[0025] Figure 5 It is a structural schematic diagram of the needle-starting swing block of the utility model.

[0026] Figure 6 This is a schematic diagram of the driving wheel structure of the utility model.

[0027] Figure 7 It is a structural schematic diagram of the needle turning fixing plate of the utility model.

[0028] Figure 8 It is a schematic diagram of the structure of the needle-lifting compression spring plate of the utility model. DETAILED DESCRIPTION

[0029] like Figure 1-8 As shown, the needle transfer triangle assembly driving mechanism of the triangle bottom plate of the knitting machine includes a triangle bottom plate 1, a needle transfer fixing plate 5 and a needle transfer motor 8. The needle transfer fixing plate 5 is provided with a needle transfer guide hole 51, a left needle start guide hole 52 and a right needle start guide hole 53. The triangle bottom plate 1 is provided with a needle transfer triangle 2, a left needle start triangle 3 and a right needle start triangle 4. The tail of the needle transfer triangle 2 is connected with a needle transfer guide post 21, which is connected in the needle transfer guide hole 51 and passes through the needle transfer guide hole 51. The tail of the left needle start triangle 3 is connected with a left needle start guide post 31, which is connected in the left needle start guide hole 52 and passes through the left needle start guide hole 52. The tail end of the right needle start triangle 4 is connected with a right needle start guide post 41, which is connected in the right needle start guide hole 53 and passes through the right needle start guide hole 53.

[0030] The end of the needle turning guide post 21 is connected to a needle turning linkage plate 6, and the needle turning fixing plate 5 is located between the needle turning linkage plate 6 and the triangular bottom plate 1. The needle turning linkage plate 6 includes a left needle starting linkage part 61 and a right needle starting linkage part 62. The left needle starting linkage part 61 is arranged at the left needle starting guide hole 52, which is located at the end of the left needle starting guide post 31, and the right needle starting linkage part 62 is arranged at the right needle starting guide hole 53, which is located at the end of the right needle starting guide post 41.

[0031] A needle turning motor seat 11 and a plurality of support columns 91 are arranged between the needle turning fixing plate 5 and the triangular base plate 1. The needle turning motor seat 11 includes a motor seat vertical plate 12. The motor seat vertical plate 12 and the plurality of support columns 91 are supported between the needle turning fixing plate 5 and the triangular base plate 1. A needle raising pressure spring plate 13 is fixedly connected to the motor seat vertical plate 12. The needle raising pressure spring plate 13 includes a left guide column hole 131 and a right guide column hole 132. The left needle raising guide column 31 is connected in the left guide column hole 131, and the right needle raising guide column 41 is connected in the right guide column hole 132.

[0032] A left needle starting triangle 3 is provided with a left needle starting triangle limiting protrusion at the tail end of the left needle starting triangle 3, and the left needle starting triangle limiting protrusion is used to resist the triangle bottom plate 1 to limit the height of the left needle starting triangle 3 protruding from the triangle bottom plate.

[0033] A right needle starting spring is mounted on the right needle starting guide column 41, and the right needle starting spring is supported between the needle starting spring plate 13 and the right needle starting triangle 4. The right needle starting spring is used to reset the right needle starting triangle 4 to protrude from the triangle bottom plate 1; a right needle starting triangle limiting protrusion is provided at the tail end of the right needle starting triangle 4, and the right needle starting triangle limiting protrusion is used to resist the triangle bottom plate 1 to limit the height of the right needle starting triangle 4 protruding from the triangle bottom plate.

[0034] A turning needle compression spring is mounted on the turning needle guide post 21, and the turning needle guide post 21 is fixedly connected with a turning needle compression spring plate, which is located between the turning needle fixing plate 5 and the triangular base plate 1, and moves synchronously with the turning needle guide post 21. The turning needle compression spring is supported between the turning needle compression spring plate and the turning needle fixing plate 5, and the turning needle compression spring is used for resetting the turning needle triangle 2 to protrude from the triangular base plate 1; a turning needle triangle limiting convex portion is provided at the tail end of the turning needle triangle 2, and the turning needle triangle limiting convex portion is used for resisting the triangular base plate 1 to limit the height of the turning needle triangle 2 protruding from the triangular base plate.

[0035] The needle turning motor 8 is arranged on the needle turning motor seat 11, and the rotating shaft of the needle turning motor 8 passes through the motor seat vertical plate 12 and is located between the left needle guide column 31 and the right needle guide column 41. The rotating shaft of the needle turning motor 8 is connected to the driving wheel 81, and the driving wheel 81 includes a first driving protrusion 811 and a second driving protrusion 812. The first driving protrusion 811 and the second driving protrusion 812 are staggered (not at the same angle of the driving wheel 81).

[0036] The left needle starting guide post 31 is fixedly connected to the left needle starting swing block 71, and the right needle starting guide post 41 is fixedly connected to the right needle starting swing block 72. The first driving protrusion 811 and the second driving protrusion 812 are located between the left needle starting swing block 71 and the right needle starting swing block 72. The left needle starting swing block 71 is provided with a left swing block bearing pin 711 between the left needle starting swing block 71 and the right needle starting swing block 72. The left swing block bearing pin 711 is used to cooperate with the first driving protrusion 811. The first driving protrusion 811 drives the left swing block bearing pin 711, thereby retracting the left needle starting triangle 3 into the triangle bottom plate 1; the right needle starting swing block 72 is provided with a right swing block bearing pin 721. The right swing block bearing pin 721 is used to cooperate with the second driving protrusion 821. The second driving protrusion 821 drives the right swing block bearing pin 721, thereby retracting the right needle starting triangle 4 into the triangle bottom plate 1.

[0037] When in use, the needle turning motor 8 drives the driving wheel 81 to rotate, and when the first driving protrusion 811 of the driving wheel 81 pushes the left swing block bearing pin 711, the left needle guide column 31 pushes the left needle linkage part 61 at the end of the left needle guide column 31, and the left needle linkage part 61 drives the needle turning guide column 21 to move, so that the needle turning triangle 2 drives the left needle triangle 3 to retract into the triangle bottom plate 1; when the left swing block bearing pin 711 breaks free from the limit of the first driving protrusion 811, the left needle compression spring resets the left needle triangle 3 to protrude from the triangle bottom plate 1, and the needle turning compression spring resets the needle turning triangle 2 to protrude from the triangle bottom plate 1.

[0038] When the second driving protrusion 821 of the driving wheel 81 pushes the right swing block bearing pin 721, the right needle starting guide column 41 pushes the right needle starting linkage part 62 at the end of the right needle starting guide column 41, and the right needle starting linkage part 62 drives the needle turning guide column 21 to move, so that the needle turning triangle 2 and the right needle starting triangle 4 are retracted into the triangle bottom plate 1; when the right swing block bearing pin 721 breaks free from the limit of the second driving protrusion 821, the right needle starting compression spring resets the right needle starting triangle 4 to protrude from the triangle bottom plate 1, and the needle turning compression spring resets the needle turning triangle 2 to protrude from the triangle bottom plate 1.

[0039] When the needle transfer cam 2 needs to be retracted into the cam base plate 1, the needle transfer cam 2 is pressed alone, and the needle transfer cam 2 can be retracted into the cam base plate 1 alone.

[0040] The above embodiments do not limit the present invention in any way, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A driving mechanism for a transfer cam assembly of a cam bottom plate of a flat knitting machine, characterized in that: It includes a cam base plate, a needle transfer fixing plate and a needle transfer motor, wherein the needle transfer fixing plate is provided with a needle transfer guide hole, a left needle start guide hole and a right needle start guide hole, the cam base plate is provided with a needle transfer cam, a left needle start cam and a right needle start cam, the needle transfer cam is provided with a needle transfer guide post, the needle transfer guide post is connected in the needle transfer guide hole, the left needle start cam is provided with a left needle start guide post, the left needle start guide post is connected in the left needle start guide hole, the right needle start cam is provided with a right needle start guide post, and the right needle start guide post is connected in the right needle start guide hole; The left needle guide pin is provided with a left needle swing block, the right needle guide pin is provided with a right needle swing block, the needle transfer motor is provided with a driving wheel, the driving wheel includes a first driving protrusion and a second driving protrusion, the first driving protrusion is used to drive the left needle swing block to retract the left needle cam into the cam bottom plate, and the second driving protrusion is used to drive the right needle swing block to retract the right needle cam into the cam bottom plate; The needle transfer cam is provided with a needle transfer linkage plate, and the needle transfer linkage plate includes a left needle starting linkage part and a right needle starting linkage part. The left needle starting cam drives the needle transfer cam to retract into the cam bottom plate through the left needle starting linkage part, and the right needle starting cam drives the needle transfer cam to retract into the cam bottom plate through the right needle starting linkage part. The needle turning triangle is provided with a needle turning pressure spring, and the needle turning pressure spring is used to reset the needle turning triangle and protrude from the triangle bottom plate. The left needle triangle is provided with a left needle pressure spring, and the left needle pressure spring is used to reset the left needle triangle and protrude from the triangle bottom plate. The right needle triangle is provided with a right needle pressure spring, and the right needle pressure spring is used to reset the right needle triangle and protrude from the triangle bottom plate.

2. The driving mechanism for the transfer cam assembly of the cam bottom plate of a flat knitting machine according to claim 1, characterized in that: The needle transfer guide post passes through the needle transfer guide hole, the left needle start-up guide post passes through the left needle start-up guide hole, the right needle start-up guide post passes through the right needle start-up guide hole, the needle transfer fixing plate is located between the needle transfer linkage plate and the triangular bottom plate, the needle transfer linkage plate is connected to the needle transfer guide post, the left needle start-up linkage part is arranged at the end of the left needle start-up guide post, and the right needle start-up linkage part is arranged at the end of the right needle start-up guide post.

3. The driving mechanism for the transfer cam assembly of the cam bottom plate of a flat knitting machine according to claim 1, characterized in that: The needle turning compression spring is sleeved on the needle turning guide column, a needle turning compression spring plate is arranged on the needle turning guide column, and the needle turning compression spring is supported between the needle turning compression spring plate and the needle turning fixed plate.

4. The driving mechanism for the transfer cam assembly of the cam bottom plate of a flat knitting machine according to claim 1, characterized in that: The left needle compression spring is sleeved on the left needle guide column, and a left needle compression spring plate is arranged on the left needle guide column. The left needle compression spring plate is provided with a left guide column hole for the left needle guide column to pass through, and the left needle compression spring is supported between the left needle compression spring plate and the left needle triangle.

5. The driving mechanism for the transfer cam assembly of the cam bottom plate of a flat knitting machine according to claim 1, characterized in that: The right needle compression spring is sleeved on the right needle guide column, and a right needle compression spring plate is arranged on the right needle guide column. The right needle compression spring plate is provided with a right guide column hole for the right needle guide column to pass through, and the right needle compression spring is supported between the right needle compression spring plate and the right needle triangle.

6. The driving mechanism for the transfer cam assembly of the cam bottom plate of a flat knitting machine according to claim 1, characterized in that: The triangular base plate is provided with a needle turning motor seat, the needle turning motor is arranged on the needle turning motor seat, the needle turning motor seat includes a motor seat vertical plate, the motor seat vertical plate is connected between the triangular base plate and the needle turning fixed plate, and a plurality of support columns are also arranged between the triangular base plate and the needle turning fixed plate.

7. The driving mechanism for the transfer cam assembly of the cam bottom plate of a flat knitting machine according to claim 1, characterized in that: The left-starting needle swing block is provided with a left swing block bearing pin, and the first driving protrusion drives the left-starting needle swing block through the left swing block bearing pin; the right-starting needle swing block is provided with a right swing block bearing pin, and the second driving protrusion drives the right-starting needle swing block through the right swing block bearing pin.

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