A flat knitting machine base plate structure for achieving a press-down needle heel and its knitting method

Abstract

This invention relates to the field of flat knitting machines and discloses a flat knitting machine base plate structure for realizing a downward pressing needle heel and its knitting method. The base plate (1) is equipped with a needle track assembly, a spring needle track assembly, and a needle selection track assembly. A guard plate (2) has a guard plate protrusion (21) that contacts and engages with the needle heel of the connecting needle. A center guide block (11) has a center groove (111) that contacts and engages with the needle heel of the spring needle. This invention uses a needle-pushing method combining a triangular outline and a downward pressing angle. The triangular outline pushes the needle heel to move. As the needle heel passes through the downward pressing angle, the corresponding needle heel portion can be controlled to sink into or completely sink into the needle groove. This combined knitting mode achieves diversified knitting functions, greatly increases knitting efficiency, and enriches knitting patterns.

Description

Technical Field

[0001] This invention relates to the field of flat knitting machines, and in particular to a flat knitting machine base plate structure for realizing a pressing needle heel and a knitting method thereof. Background Technology

[0002] Currently, the commonly used base plate structure achieves the sliding of the needle in the needle groove by directly pushing the triangular outline into contact with the needle heel. The above method always requires the triangular outline to contact with the needle heel, and can only achieve the forward and backward translation of the needle in the needle groove. Due to the limitation of the needle movement method, the knitting function of the base plate structure of the flat knitting machine is limited, resulting in insufficient knitting patterns and failing to meet market demands. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a flat knitting machine base plate structure for implementing a press-down needle heel and a knitting method thereof.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] A flat knitting machine base plate structure for implementing needle heel pressing includes a base plate on which a needle track assembly, a spring needle track assembly, and a needle selection track assembly are mounted. The needle track assembly includes a guard, a density triangle, and a turn-over triangle. The spring needle track assembly includes a butterfly guard and a center guide block assembled with the butterfly guard. The guard has a guard protrusion located on the needle track, which contacts and engages with the needle heel of the connecting needle, pressing the needle into the needle groove. The center guide block has a center groove located on the spring needle track, which contacts and engages with the spring needle heel, pressing the spring needle down to cause it to elastically deform within the needle groove. During knitting, the needle heel contacts the outline of the triangle, and the triangle pushes the needle heel to move. As the needle heel passes through the pressing angle, the corresponding needle heel portion can be controlled to sink into or completely sink into the needle groove. This invention's flat knitting machine base plate uses a combination of triangular outline pushing and pressing angle pressing of the needle heel to achieve multiple knitting functions, greatly increasing knitting efficiency and enriching knitting patterns.

[0006] Preferably, the protective protrusion is located at the lower part of the protective wall and on the needle track. The cross-section of the protective protrusion is triangular, and the left and right side walls of the protective protrusion are symmetrically arranged needle pressing angle surfaces. The angle between the needle pressing angle surface and the base plate is 25° to 45°.

[0007] Preferably, the Zhongshan groove is located at the lower part of the Zhongshan guide block, and the inner walls on both sides of the Zhongshan groove are symmetrically arranged downward pressing angle surfaces, with the angle between the downward pressing angle surface and the base plate surface being 30°.

[0008] ~40°; The Zhongshan guide block is provided with a woven guide groove, which is an upward-arched groove, and the arched part of the woven guide groove is located above the Zhongshan groove.

[0009] Preferably, the butterfly mountain has a double-arched upper guide edge with an upward arched upper edge, which matches the lower edge of the Zhongshan guide block. The upper left and right sides of the butterfly mountain are provided with needle return angle grooves that connect to the upper guide edge. The angle between the bottom of the needle return angle groove and the base surface of the base plate is 25° to 45°.

[0010] Preferably, the lower part of the butterfly mountain is provided with a butterfly mountain guide groove, which is an arched groove that arches upward. The uppermost end of the butterfly mountain guide groove is provided with a notch and connected to the upper guide edge. The left and right sides of the butterfly mountain guide groove are provided with needle-starting angle grooves. The angle between the bottom of the needle-starting angle groove and the base surface of the base plate is 15° to 30°.

[0011] Preferably, it also includes a pressing spring, which is located below the flipping needle triangle and above the Zhongshan guide block; the pressing spring is bent and has two outwardly protruding bent protrusions, which contact the heel of the connecting needle and press the auxiliary needle into the needle groove.

[0012] Preferably, the needle selection track assembly includes an upper needle selection triangle, a needle selection guard, a lower needle selection triangle, a push needle triangle, and a lift needle triangle; the upper needle selection triangle and the needle selection guard are connected in sequence and form a first needle selection track along their lower edges; the lower needle selection triangle, the push needle triangle, and the lift needle triangle are connected in sequence and form a second needle selection track along their upper edges; the upper needle selection triangle includes an upper left needle selection triangle, an upper middle needle selection triangle, and an upper right needle selection triangle, the lower needle selection triangle includes a lower left needle selection triangle, a lower middle needle selection triangle, and a lower right needle selection triangle, and the push needle triangle includes a left push needle triangle and a right push needle triangle.

[0013] Preferably, the guardrail includes a left guardrail, a middle guardrail, and a right guardrail; it also includes a starting pin triangle, which is located below the guardrail. The starting pin triangle includes a left starting pin triangle, a middle starting pin triangle, and a right starting pin triangle located below the left guardrail, the middle guardrail, and the right guardrail, respectively; the spring pin track assembly also includes a return pin triangle, which is located below the starting pin triangle. The return pin triangle includes a left return pin triangle, a middle return pin triangle, and a right return pin triangle distributed below the left starting pin triangle, the middle starting pin triangle, and the right starting pin triangle.

[0014] The density triangle includes a left density triangle and a right density triangle located to the left and right of the flip-pin triangle, and density guide pins are installed on the density triangles; a herringbone triangle is installed above the flip-pin triangle, and a flip-pin guide block is installed below the flip-pin triangle.

[0015] A method for knitting the bottom plate of a flat knitting machine to achieve a downward pressing needle heel:

[0016] 1) Performing the non-knitting function: The Zhongshan guide block sinks into the base plate, the base plate moves to the right, and the needle corresponding to the needle heel of the needle selector that is abutted by the lower swing of the needle selector sinks into the needle groove. The needle heel of the needle selector does not contact the push needle triangle. At this time, the needle selector, spring needle, connecting needle, and knitting needle are all in the initial position, and the flat knitting machine base plate performs the non-knitting function.

[0017] 2) Perform the lifting function: The needle guide block, left push needle triangle and right push needle triangle sink into the base plate. The base plate moves to the right. The needle selector swing plate tilts up and does not contact the needle selector. The needle selector contacts the needle selector guard and pushes the needle selector and the corresponding spring needle to move up to the lifting pre-selection height. The spring needle heel enters the butterfly guide groove inlet and contacts the needle starting angle groove and moves along the angle. At this time, the spring needle heel part sinks into the needle groove and moves along the needle path to reach the lifting downward pressure angle surface of the Zhongshan guide block. It moves obliquely upward along the lifting downward pressure angle surface to reach the lifting downward pressure plane and continues to move into the lifting height. The flat knitting machine base plate performs the lifting function.

[0018] 3) Perform the knitting function; the needle guide block and the left push needle triangle sink into the base plate, the needle selector swing plate tilts up and does not contact the needle selector, the selected needle contacts the needle selector guard and pushes the needle selector and spring needle up to the pre-selected height, then passes through the needle selector again, the selected needle contacts the outline of the right push needle triangle and pushes the needle selector and the corresponding spring needle up to the knitting pre-selected height, the spring needle continues to move along the outline of the butterfly mountain triangle into the knitting guide groove of the middle mountain guide block, the spring needle pushes the corresponding connecting needle and knitting needle to the knitting height, and the flat knitting machine base plate performs the knitting function;

[0019] 4) Perform the needle flipping function: The Zhongshan guide block and the left push needle triangle sink into the bottom plate, the needle selector swing plate tilts up and does not contact the needle selector, the selected needle contacts the needle selector guard and pushes the needle selector and spring needle up to the pre-selected height of the hanging eye. After another needle selection, the selected needle contacts the outline of the right push needle triangle and pushes the needle selector and the corresponding spring needle up to the pre-selected knitting height. The spring needle continues to move along the outline of the butterfly mountain triangle. At this time, the connecting needle heel contacts the outline of the needle flipping guide block. The connecting needle pushes the knitting needle into the needle flipping needle path, and the flat knitting machine bottom plate performs the needle flipping function.

[0020] 5) Perform the left needle connection function: The Zhongshan guide block, left push needle triangle and right push needle triangle sink into the base plate, the flat knitting machine base plate moves to the right, the needle selector swing plate tilts up and does not contact the needle selector, the selected needle contacts the needle selector guard and pushes the needle selector and the corresponding spring needle to move up to the pre-selection height of the hanging eye. The spring needle heel enters the butterfly guide groove entrance of the butterfly mountain and contacts the starting needle angle groove and moves along the angle. At this time, the spring needle heel part sinks into the needle groove and moves along the needle path, while pushing the connecting needle and the knitting needle to the needle connection height. The base plate continues to move to the right, the connecting needle heel touches the lower left notch of the turning needle guide block and moves down along the lower left notch outline of the turning needle guide block, driving the spring needle heel to contact the needle return angle groove. The spring needle heel moves along the tilt direction and sinks completely into the base plate. After entering the needle path, the spring needle heel moves along the left return triangle outline to the starting position, and the flat knitting machine base plate completes the left needle connection function.

[0021] 6) Perform the right needle connection function: The Zhongshan guide block, left push needle triangle and right push needle triangle sink into the base plate, the flat knitting machine base plate moves to the left, the needle selector swing plate tilts up and does not contact the selected needle, the selected needle contacts the needle selector guard and pushes the selected needle and the corresponding spring needle to move up to the pre-selected height of the hanging eye. The spring needle heel enters the butterfly guide groove entrance of the butterfly mountain and contacts the starting needle angle groove and moves along the angle. At this time, the spring needle heel part sinks into the needle groove and moves along the needle path, while pushing the connecting needle and the knitting needle to the needle connection height. The base plate continues to move to the left, the connecting needle heel touches the lower right notch of the turning needle guide block and moves down along the lower right notch outline of the turning needle guide block, driving the spring needle heel to contact the needle return angle groove. The spring needle heel moves along the tilt direction and sinks completely into the base plate. After entering the needle path, the spring needle heel moves along the outline of the right return triangle to the starting position, and the flat knitting machine base plate completes the right needle connection function.

[0022] 7) Perform the hanging loop weaving function: The needle guide block and the left push needle triangle sink into the base plate. The base plate moves to the right. The lower edge of the needle selector slide touches the needle selector heel, causing some needles to sink into the needle groove to complete the first needle selection. The base plate continues to move. For the second needle selection, the needle selector slide tilts up and does not contact the needle. The needles corresponding to the needles selected in the second step perform the weaving function as in step 3). At the same time, the needles corresponding to the needles not selected in the first step perform the hanging loop function. The above functions are the same hanging loop weaving functions performed in the same row of weaving instructions in the same system.

[0023] 8) Perform the flip function: The Zhongshan guide block and the left push needle triangle sink into the base plate. The base plate moves to the right. The lower swing of the needle selector slide touches the needle heel of the needle selector, causing some needles to sink into the needle groove to complete the first needle selection. The base plate continues to move. For the second needle selection, the needle selector slide tilts up and does not contact the needle selector. The needle corresponding to the second selected needle is installed in step 4) to perform the flip function. At the same time, the needle corresponding to the needle that was not selected in the first time performs the hanging eye function. The above functions are the flip functions performed in the same knitting instruction of the same system.

[0024] The present invention has significant technical effects due to the adoption of the above technical solutions: The present invention uses a push needle method that combines a triangular outline and a downward pressure angle. The triangular outline pushes the needle heel to move. As the needle heel passes through the downward pressure angle, the corresponding needle heel part can be controlled to sink into or completely sink into the needle groove. The above-mentioned combined knitting mode realizes the diversification of knitting functions, greatly increases knitting efficiency, and enriches knitting patterns. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the mountain protection structure.

[0027] Figure 3 This is a schematic diagram of the Zhongshan guide block.

[0028] Figure 4 This is a structural diagram of Butterfly Mountain.

[0029] Figure 5 This is a schematic diagram of the downward pressure spring.

[0030] Figure 6 This is the state diagram of the flat knitting machine when performing the non-woven function.

[0031] Figure 7 This is a state diagram of the flat knitting machine when performing the lifting function.

[0032] Figure 8 This is a state diagram of the flat knitting machine when performing the knitting function.

[0033] Figure 9 This is a state diagram of the flat knitting machine when performing the stitch-turning function.

[0034] Figure 10 This is a state diagram of the flat knitting machine when the left needle insertion function is executed.

[0035] Figure 11 This is a state diagram of the flat knitting machine when the right needle insertion function is executed.

[0036] Figure 12 This is a state diagram of the flat knitting machine when performing the weaving function of the hanging tape.

[0037] Figure 13 This is a state diagram of the flat knitting machine when performing the flipping function.

[0038] The parts indicated by the numbers in the attached diagram are as follows: 1—Base plate, 2—Guard, 3—Starting pin triangle, 4—Returning pin triangle, 5—Density guide pin, 6—Lifting pin triangle, 7—Density pin triangle, 8—Herringbone triangle, 9—Flipping pin guide block, 10—Flipping pin triangle, 11—Middle mountain guide block, 12—Butterfly pin, 13—Upper selection pin triangle, 14—Selection pin guard, 15—Lower selection pin triangle, 16—Push pin triangle, 17—Lower pressure spring, 201—Left guard, 202—Middle guard, 203—Right guard, 21—Guard protrusion, 301—Left starting pin triangle, 302—Middle starting pin triangle, 303—Right starting pin triangle, 401—Left returning pin triangle. 402—Center Return Triangle, 403—Right Return Triangle, 701—Left Density Triangle, 702—Right Density Triangle, 111—Middle Mountain Groove, 1111—Lower Pressing Angle Surface, 112—Knitting Guide Groove, 121—Upper Guide Edge, 1211—Needle Return Angle Groove, 122—Butterfly Mountain Guide Groove, 1221—Starting Needle Angle Groove, 1301—Left Upper Needle Selection Triangle, 1302—Center Upper Needle Selection Triangle, 1303—Right Upper Needle Selection Triangle, 1501—Left Lower Needle Selection Triangle, 1502—Center Lower Needle Selection Triangle, 1503—Right Lower Needle Selection Triangle, 1601—Left Push Needle Triangle, 1602—Right Push Needle Triangle, 171—Bent Protrusion. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0040] Example 1

[0041] A flat knitting machine base plate structure for achieving needle heel pressing down, as shown in the figure, includes a base plate 1. A needle track assembly, a spring needle track assembly, and a needle selection track assembly are installed on the base plate 1. The needle track assembly includes a guard 2, a density triangle 7, and a needle turning triangle 10. The spring needle track assembly includes a butterfly guard 12 and a center guide block 11 assembled with the butterfly guard 12. The guard 2 has a guard protrusion 21 located on the needle track. The guard protrusion 21 contacts and engages with the needle heel of the connecting needle and presses the needle into the needle groove. The center guide block 11 has a center groove 111 located on the spring needle track. The center guide block 11 contacts and engages with the needle heel of the spring needle and presses the spring needle down to cause it to undergo elastic deformation in the needle groove. During knitting, the needle heel contacts the triangular outline, and the triangle pushes the needle heel to move. As the needle heel passes the downward pressing angle, the corresponding needle heel portion can be controlled to sink into or completely sink into the needle groove. The flat knitting machine base plate of this invention uses the method of direct pushing of the triangular outline and pressing down the needle heel with the downward pressing angle to realize the combination of multiple knitting functions, which greatly increases knitting efficiency and enriches knitting patterns.

[0042] Example 1

[0043] Similar to Example 1, except that the guard protrusion 21 is located at the lower part of the guard 2 and on the needle track. The cross-section of the guard protrusion 21 is triangular, and the left and right side walls of the guard protrusion 21 are symmetrically arranged needle pressing angle surfaces. The angle between the needle pressing angle surface and the base surface of the base plate 1 is 35°.

[0044] Example 2

[0045] Similar to Embodiment 1, except that the Zhongshan groove 111 is located at the lower part of the Zhongshan guide block 11, and the inner walls on the left and right sides of the Zhongshan groove 111 are symmetrically arranged downward pressing angle surfaces 1111, and the angle between the downward pressing angle surface 1111 and the base surface of the bottom plate 1 is 35°; the Zhongshan guide block 11 is provided with a woven guide groove 112, which is an upward arched groove, and the arched part of the woven guide groove 112 is located above the Zhongshan groove 111.

[0046] Example 3

[0047] Similar to Embodiment 1, except that the upper edge of the butterfly mountain 12 is a double-arched upper guide edge 121 with an upward arched upper edge. The upper guide edge 121 fits with the lower edge of the mountain guide block 11. The upper left and right sides of the butterfly mountain 12 are provided with needle return angle grooves 1211 that are connected to the upper guide edge 121. The angle between the bottom of the needle return angle groove 1211 and the base surface of the base plate 1 is 35°.

[0048] The lower part of the butterfly mountain 12 is provided with a butterfly mountain guide groove 122. The butterfly mountain guide groove 122 is an arched groove that arches upward. The uppermost end of the butterfly mountain guide groove 122 is provided with a notch and is connected to the upper guide edge 121. The left and right sides of the butterfly mountain guide groove 122 are provided with needle-starting angle grooves 1221. The angle between the bottom of the needle-starting angle groove 1221 and the base surface of the base plate 1 is 22.5°.

[0049] Example 4

[0050] Similar to Embodiment 1, but with the addition of a pressing spring 17, which is located below the flipping needle triangle 10 and above the Zhongshan guide block 11; the pressing spring 17 is bent and has two outwardly protruding bent protrusions 171, which contact the connecting needle heel and press the auxiliary needle into the needle groove.

[0051] Example 5

[0052] Similar to Embodiment 1, the difference is that the needle selection track assembly includes an upper needle selection triangle 13, a needle selection guard 14, a lower needle selection triangle 15, a push needle triangle 16, and a lift needle triangle 6; the upper needle selection triangle 13 and the needle selection guard 14 are connected in sequence and form a first needle selection track along their lower edges; the lower needle selection triangle 15, the push needle triangle 16, and the lift needle triangle 6 are connected in sequence and form a second needle selection track along their upper edges; the upper needle selection triangle 13 includes an upper left needle selection triangle 1301, an upper middle needle selection triangle 1302, and an upper right needle selection triangle 1303; the lower needle selection triangle 15 includes a lower left needle selection triangle 1501, a lower middle needle selection triangle 1502, and a lower right needle selection triangle 1503; and the push needle triangle 16 includes a left push needle triangle 1601 and a right push needle triangle 1602.

[0053] The guardrail 2 includes a left guardrail 201, a middle guardrail 202, and a right guardrail 203; it also includes a starting pin triangle 3, which is located below the guardrail 2. The starting pin triangle 3 includes a left starting pin triangle 301, a middle starting pin triangle 302, and a right starting pin triangle 303, which are located below the left guardrail 201, the middle guardrail 202, and the right guardrail 203, respectively; the spring pin track assembly also includes a return triangle 4, which is located below the starting pin triangle 3. The return triangle 4 includes a left return triangle 401, a middle return triangle 402, and a right return triangle 403, which are distributed below the left starting pin triangle 301, the middle starting pin triangle 302, and the right starting pin triangle 303.

[0054] The density triangle 7 includes a left density triangle 701 and a right density triangle 702 located to the left and right of the flip-pin triangle 10. A density guide pin 5 is installed on the density triangle 7. A herringbone triangle 8 is installed above the flip-pin triangle 10. A flip-pin guide block 9 is installed on the flip-pin triangle 10.

[0055] The knitting needle assembly of this invention includes knitting needles, connecting needles, spring needles, and selecting needles. The knitting needles and connecting needles are combined into one unit. The connecting needle can rotate around the needle bar of the knitting needle at a certain angle. The heel of the connecting needle corresponds to the upper part of the flat knitting machine base plate, the heel of the spring needle corresponds to the middle part of the flat knitting machine base plate, and the heel of the selecting needle corresponds to the lower part of the flat knitting machine base plate. The connecting needle moves along the contour of the left guard 201, right guard 203, or middle guard 202 and contacts the downward pressing angle surface of the knitting needle. Under the pressure of the downward pressing angle surface of the knitting needle, the heel of the connecting needle sinks into the needle groove, so that the knitting needle does not participate in knitting. The spring needle pushes the connecting needle upward, so that the heel of the connecting needle protrudes from the base plate, and the knitting needle can continue knitting. The heel of the spring needle has a certain elasticity. When the downward pressing angle surface 1111 contacts the heel of the spring needle, the heel can be partially or completely sunk into the needle groove. When the downward pressing angle pressure disappears or when the downward pressing angle does not contact the heel, the heel of the spring needle can automatically reset under the action of elasticity until the heel protrudes from the needle plate.

[0056] Example 6

[0057] A method for knitting the bottom plate of a flat knitting machine to achieve a downward pressing needle heel:

[0058] 1) Perform non-woven function: such as Figure 6 Zhongshan guide block 11 sinks into base plate 1, base plate 1 moves to the right, the needle corresponding to the needle heel of the needle selector that is abutted by the lower swing of the needle selector sinks into the needle groove, the needle heel of the needle selector does not contact the push needle triangle 16, at this time the needle selector, spring needle, connecting needle and knitting needle are all in the initial position, and the flat knitting machine base plate performs non-knitting function.

[0059] 2) Perform the hanging function: such as Figure 7 The needle guide block 9, the left push needle triangle 1601 and the right push needle triangle 1602 sink into the base plate 1. The base plate 1 moves to the right. The needle selector swing plate tilts up and does not contact the needle selector. The needle selector contacts the needle selector guard 14 and pushes the needle selector and the corresponding spring needle to move up to the pre-selection height of the hanging eye. The needle heel of the spring needle enters the entrance of the butterfly guide groove 122 and contacts the needle starting angle groove 1221 and moves along the angle. At this time, the needle heel part of the spring needle sinks into the needle groove and moves along the needle path to reach the hanging eye downward pressure angle surface 1111 of the Zhongshan guide block 11. It moves obliquely upward along the hanging eye downward pressure angle surface 1111 to reach the hanging eye downward pressure plane and continues to move into the hanging eye height. The flat knitting machine base plate 1 performs the hanging eye function.

[0060] 3) Perform the weaving function; such as Figure 8The needle guide block 9 and the left push needle triangle 1601 sink into the base plate. The needle selector swing plate tilts up and does not contact the needle selector. The selected needle contacts the needle selector guard 14 and pushes the needle selector and spring needle upward to the pre-selection height. After another needle selection, the selected needle contacts the outline of the right push needle triangle 1602 and pushes the needle selector and the corresponding spring needle upward to the pre-selection knitting height. The spring needle continues to move along the triangular outline of the butterfly mountain 12 and enters the knitting guide groove 112 of the mountain guide block 11. The spring needle pushes the corresponding connecting needle and knitting needle to the knitting height, and the flat knitting machine base plate performs the knitting function.

[0061] 4) Perform the stitch flipping function: such as Figure 9 Zhongshan guide block 11 and left push needle triangle 1601 sink into the base plate 1. The needle selector swing plate tilts up and does not contact the needle selector. The selected needle contacts the needle selector guard 14 and pushes the needle selector and spring needle up to the pre-selection height. After another needle selection, the selected needle contacts the outline of the right push needle triangle 1602 and pushes the needle selector and corresponding spring needle up to the pre-selection height. The spring needle continues to move along the outline of the butterfly mountain triangle 12. At this time, the connecting needle heel contacts the outline of the turn needle guide block 9. The connecting needle pushes the knitting needle into the turn needle path. The flat knitting machine base plate 1 performs the turn needle function.

[0062] 5) Execute the left pin connection function: such as Figure 10 The guide block 11, left push needle triangle 1601, and right push needle triangle 1602 sink into the base plate. The flat knitting machine base plate 1 moves to the right. The needle selector swing plate tilts up and does not contact the needle selector. The selected needle contacts the needle selector guard 14 and pushes the needle selector and the corresponding spring needle upward to the pre-selection height. The spring needle heel enters the butterfly guide groove 122 entrance of the butterfly guide 12 and contacts the needle starting angle groove 1221 and moves along the angle. At this time, the spring needle heel part sinks into the needle groove along the edge. As the needle path moves, it simultaneously pushes the connecting needle and the knitting needle to the needle insertion height. The base plate 1 continues to move to the right. The heel of the connecting needle touches the lower left notch of the needle flipping guide block 9 and moves down along the contour of the lower left notch of the needle flipping guide block 9, driving the heel of the spring needle to contact the needle insertion return angle groove 1211. The heel of the spring needle moves along the tilt direction and sinks completely into the base plate 1. After entering the needle path, it moves along the contour of the left return triangle 401 to reach the starting position. The base plate 1 of the flat knitting machine completes the left needle insertion function.

[0063] 6) Execute the right pin function: such as Figure 11The guide block 11, the left push needle triangle 1601, and the right push needle triangle 1602 sink into the base plate 1. The base plate 1 of the flat knitting machine moves to the left. The selector's swing plate tilts up and does not contact the selector needle. The selected needle contacts the selector guard 14 and pushes the selector needle and the corresponding spring needle upward to the pre-selection height. The spring needle heel enters the butterfly guide groove 122 entrance of the butterfly guide 12 and contacts the needle inclination groove 1221 and moves along the inclination angle. At this time, the spring needle heel part sinks into the needle groove along the edge. As the needle path moves, it simultaneously pushes the connecting needle and the knitting needle to the needle insertion height. The base plate 1 continues to move to the left. The heel of the connecting needle touches the lower right notch of the needle flipping guide block 9 and moves down along the lower right notch outline of the needle flipping guide block 9, driving the heel of the spring needle to contact the needle insertion return angle groove 1211. The heel of the spring needle moves along the tilt direction and sinks completely into the base plate 1. After entering the needle path, it moves along the outline of the right return triangle 403 to reach the starting position. The base plate 1 of the flat knitting machine completes the right needle insertion function.

[0064] 7) Perform the hanging strap weaving function: such as Figure 12 The needle guide block 9 and the left push needle triangle 1601 sink into the base plate 1. The base plate 1 moves to the right. The lower swing of the needle selector slide touches the needle selector heel, causing a portion of the needles to sink into the needle groove to complete the first needle selection. The base plate 1 continues to move. In the second needle selection, the needle selector slide tilts up and does not contact the needle. The needles corresponding to the needles selected in the second step perform the knitting function according to step 3. At the same time, the needles corresponding to the needles not selected in the first step perform the hanging eye function. The above functions are the same hanging eye band knitting function performed in the same row of knitting instructions in the same system.

[0065] 8) Perform the flip function: such as Figure 13 The guide block 11 and the left push needle triangle 1601 sink into the base plate 1. The base plate 1 moves to the right. The lower swing of the needle selector slide abuts against the needle heel of the needle selector, causing a portion of the needle selector to sink into the needle groove to complete the first needle selection. The base plate 1 continues to move. In the second needle selection, the needle selector slide tilts up and does not contact the needle selector. The needle corresponding to the needle selected in the second step performs the needle flipping function in step 4. At the same time, the needle corresponding to the needle not selected in the first step performs the needle lifting function. The above functions are the flipping functions performed in the same row of knitting instructions in the same system.

[0066] In summary, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.

Claims

1. A flat knitting machine base plate structure for realizing the downward pressing of the needle heel, comprising a base plate (1), characterized in that: The base plate (1) is equipped with a needle track assembly, a spring needle track assembly, and a needle selection track assembly. The needle track assembly includes a guard (2), a density triangle (7), and a turn-over triangle (10). The spring needle track assembly includes a butterfly guard (12) and a center guide block (11) assembled with the butterfly guard (12). The guard (2) has a guard protrusion (21), which contacts and engages with the heel of the connecting needle. The center guide block (11) has a center groove (111). It contacts and engages with the spring needle heel; the guard plate protrusion (21) is set at the lower part of the guard plate (2) and located on the needle track. The left and right side walls of the guard plate protrusion (21) are needle pressing angle surfaces. The angle between the needle pressing angle surface and the base surface of the base plate (1) is 25°~45°; the Zhongshan groove (111) is located at the lower part of the Zhongshan guide block (11). The left and right side inner walls of the Zhongshan groove (111) are hanging eye pressing angle surfaces (1111). The hanging eye pressing angle surfaces (1111) and the base plate (1) are in contact with the needle heel; the guard plate protrusion (21) is set at the lower part of the guard plate (2) and located on the needle track. The left and right side inner walls of the Zhongshan groove (111) are hanging eye pressing angle surfaces (1111). The hanging eye pressing angle surfaces (1111) and the base surface of the base plate (1) are in contact with the needle heel of the spring needle. The included angle between the base surfaces is 30°~40°; the Zhongshan guide block (11) is provided with a braiding guide groove (112), which is an arched groove that arches upwards. The arched part of the braiding guide groove (112) is located above the Zhongshan groove (111); the upper edge of the butterfly mountain (12) is an arched double-arched upper guide edge (121), and the left and right sides of the upper part of the butterfly mountain (12) are provided with needle return angle grooves (1211) that connect with the upper guide edge (121). The angle between the bottom of the groove of 1211 and the base surface of the base plate (1) is 25°~45°; the lower part of the butterfly mountain (12) is provided with a butterfly mountain guide groove (122), which is an arched groove that arches upward. The uppermost end of the butterfly mountain guide groove (122) is provided with a notch and connected to the upper guide edge (121). The left and right sides of the butterfly mountain guide groove (122) are provided with a needle-starting angle groove (1221). The angle between the bottom of the needle-starting angle groove (1221) and the base surface of the base plate (1) is 15°~30°.

2. The flat knitting machine base plate structure for realizing the downward pressing needle heel according to claim 1, characterized in that: It also includes a pressure spring (17), which is located below the flip pin triangle (10) and above the Zhongshan guide block (11); the pressure spring (17) is bent and has two outwardly protruding bent protrusions (171).

3. The flat knitting machine base plate structure for realizing the downward pressing needle heel according to claim 2, characterized in that: The needle selection track assembly includes an upper needle selection triangle (13), a needle selection guard (14), a lower needle selection triangle (15), a push needle triangle (16), and a lift needle triangle (6); the upper needle selection triangle (13) and the needle selection guard (14) are connected in sequence; the lower needle selection triangle (15), the push needle triangle (16), and the lift needle triangle (6) are connected in sequence; the upper needle selection triangle (13) includes an upper left needle selection triangle (1301), an upper middle needle selection triangle (1302), and an upper right needle selection triangle (1303); the lower needle selection triangle (15) includes an lower left needle selection triangle (1501), a lower middle needle selection triangle (1502), and a lower right needle selection triangle (1503); and the push needle triangle (16) includes a left push needle triangle (1601) and a right push needle triangle (1602).

4. The flat knitting machine base plate structure for realizing the downward pressing needle heel according to claim 3, characterized in that: The guardrail (2) includes a left guardrail (201), a middle guardrail (202) and a right guardrail (203); it also includes a starting needle triangle (3), which is located below the guardrail (2). The starting needle triangle (3) includes a left starting needle triangle (301), a middle starting needle triangle (302) and a right starting needle triangle (303) located below the left guardrail (201), the middle guardrail (202) and the right guardrail (203) respectively; the spring needle track assembly also includes a return triangle (4), which is located below the starting needle triangle (3). The return triangle (4) includes a left return triangle (401), a middle return triangle (402) and a right return triangle (403) located below the left starting needle triangle (301), the middle starting needle triangle (302) and the right starting needle triangle (303) respectively.

5. The flat knitting machine base plate structure for realizing the downward pressing needle heel according to claim 4, characterized in that: The density triangle (7) includes a left density triangle (701) and a right density triangle (702) located to the left and right of the flip-pin triangle (10). A density guide pin (5) is installed on the density triangle (7). A herringbone triangle (8) is installed above the flip-pin triangle (10). A flip-pin guide block (9) is installed on the flip-pin triangle (10).

6. A method for knitting a flat knitting machine base plate to achieve a pressing needle heel, characterized in that: The flat knitting machine base plate structure for realizing the downward pressing needle heel as described in claim 5 specifically includes the following steps: 1) Perform non-woven function: Zhongshan guide block (11) sinks into the base plate (1), the base plate (1) moves to the right, the needle corresponding to the needle heel of the needle selector that is abutted by the lower heel of the needle selector sinks into the needle groove, the needle heel of the needle selector does not contact the push needle triangle (16), at this time the needle selector, spring needle, connecting needle and knitting needle are all in the initial position, and the flat knitting machine base plate performs non-woven function; 2) Perform the lifting function: The needle guide block (9), the left push needle triangle (1601) and the right push needle triangle (1602) sink into the base plate (1), the base plate (1) moves to the right, the needle selector swing plate tilts up and does not contact the needle selector, the needle selector contacts the needle selector guard (14) and pushes the needle selector and the corresponding spring needle to move up to the lifting pre-selection height, the spring needle heel enters the entrance of the butterfly guide groove (122) and contacts the starting needle tilting groove (1221) and moves along the starting needle tilting groove (1221). At this time, the spring needle heel part sinks into the needle groove and moves along the needle path to the lifting downward tilting surface (1111) of the Zhongshan guide block (11), moves obliquely upward along the lifting downward tilting surface (1111) to reach the lifting downward plane and continue to move to the lifting height, the flat knitting machine base plate performs the lifting function; 3) Perform the knitting function; the needle guide block (9) and the left push needle triangle (1601) sink into the bottom plate, the needle selector swing plate tilts up and does not contact the needle selector, the selected needle contacts the needle selector guard (14) and pushes the needle selector and spring needle to move up to the pre-selection height of the hanging eye. After another needle selection, the selected needle contacts the outline of the right push needle triangle (1602) and pushes the needle selector and the corresponding spring needle to move up to the knitting pre-selection height. The spring needle continues to move along the triangular outline of the butterfly mountain (12) and enters the knitting guide groove (112) of the Zhongshan guide block (11). The spring needle pushes the corresponding connecting needle and knitting needle to the knitting height, and the flat knitting machine bottom plate performs the knitting function. 4) Perform the needle flipping function: Zhongshan guide block (11) and left push needle triangle (1601) sink into the base plate (1), the needle selector swing plate tilts up and does not contact the needle selector, the selected needle contacts the needle selector guard (14) and pushes the needle selector and spring needle to move up to the pre-selected height of the hanging eye. After another needle selection, the selected needle contacts the outline of the right push needle triangle (1602) and pushes the needle selector and the corresponding spring needle to move up to the pre-selected knitting height. The spring needle continues to move along the outline of the butterfly mountain (12) triangle. At this time, the connecting needle heel contacts the outline of the needle flipping guide block (9), and the connecting needle pushes the knitting needle into the needle flipping needle path. The flat knitting machine base plate performs the needle flipping function. 5) Execute the left needle receiving function: Zhongshan guide block (11), left push needle triangle (1601) and right push needle triangle (1602) sink into the bottom plate, the flat knitting machine bottom plate moves to the right, the needle selector swing plate tilts up and does not contact the needle selector, the selected needle contacts the needle selector guard (14) and pushes the needle selector and the corresponding spring needle to move up to the pre-selection height, the spring needle heel enters the butterfly guide groove (122) entrance of the butterfly guide (12) and contacts the needle starting angle groove (1221) and moves along the needle starting angle groove (1221), at this time the spring The needle heel sinks into the needle groove and moves along the needle path, pushing the connecting needle and knitting needle to the needle insertion height. The base plate (1) continues to move to the right. The connecting needle heel touches the lower left notch of the needle flipping guide block (9) and moves down along the lower left notch outline of the needle flipping guide block (9), driving the spring needle heel to contact the needle insertion return angle groove (1211). The spring needle heel moves along the inclined direction and sinks completely into the base plate (1). After entering the needle path, it moves along the outline of the left return triangle (401) to reach the starting position. The flat knitting machine base plate completes the left needle insertion function. 6) Execute the right needle receiving function: Zhongshan guide block (11), left push needle triangle (1601) and right push needle triangle (1602) sink into the base plate (1), the flat knitting machine base plate moves to the left, the needle selector swing plate tilts up and does not contact the needle selector, the selected needle contacts the needle selector guard (14) and pushes the needle selector and the corresponding spring needle to move up to the pre-selection height, the spring needle heel enters the butterfly guide groove (122) entrance of the butterfly mountain (12) and contacts the needle starting angle groove (1221) and moves along the needle starting angle groove (1221), at this time the spring The spring needle heel sinks into the needle groove and moves along the needle path, pushing the connecting needle and knitting needle to the needle connection height. The base plate (1) continues to move to the left. The connecting needle heel touches the lower right notch of the needle flipping guide block (9) and moves down along the lower right notch outline of the needle flipping guide block (9), driving the spring needle heel to contact the needle return angle groove (1211). The spring needle heel moves along the inclined direction and sinks completely into the base plate (1). After entering the needle path, it moves along the outline of the right return triangle (403) to reach the starting position. The flat knitting machine base plate completes the right needle connection function. 7) Perform the hanging eye band knitting function: the needle guide block (9) and the left push needle triangle (1601) sink into the base plate (1), the base plate (1) moves to the right, the lower swing of the needle selector slide touches the needle selector heel so that a part of the needle selector sinks into the needle groove to complete the first needle selection, the base plate (1) continues to move, the needle selector slide tilts up and does not contact the needle selector in the second needle selection, the knitting needle corresponding to the second selected needle performs the knitting function according to step 3), and at the same time the knitting needle corresponding to the first unselected needle performs the hanging eye function. The above functions are the same hanging eye band knitting functions performed in the same knitting instruction of the same system. 8) Perform the flip function: Zhongshan guide block (11) and left push needle triangle (1601) sink into the base plate (1), the base plate (1) moves to the right, the lower swing of the needle selector slide touches the needle heel of the needle selector so that a part of the needle selector sinks into the needle groove to complete the first needle selection. The base plate (1) continues to move. When selecting the needle for the second time, the needle selector slide tilts up and does not contact the needle selector. The needle corresponding to the needle selected for the second time performs the flip function in step 4). At the same time, the needle corresponding to the needle not selected for the first time performs the hanging eye function. The above functions are the flip functions performed by the same system in the same row of knitting instructions.

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