Bidirectional knitting density control device based on electric control and glove machine

Abstract

The invention relates to a bidirectional knitting density control device based on electric control and a glove machine, the density knitting control device comprises a first electric driving mechanism, the output end of the first electric driving mechanism is connected with a first ejector rod and a third ejector rod, and the first ejector rod and the third ejector rod are arranged in parallel; the first ejector rod is driven by the first electric driving mechanism to have at least one density adjusting range so as to control the positions of the left density triangle and the right density triangle, and therefore bidirectional knitting full density adjustment can be carried out. The third ejector rod is driven by the first electric driving mechanism to have at least one driving range so as to drive the middle triangle to be switched between the full high position and the half high position. Under the driving of the first electric driving mechanism, the first ejector rod and the third ejector rod have multiple position matching modes. According to the glove machine, the left-right bidirectional full density can be electrically adjusted, the time required for density adjustment is greatly shortened, the adjustment precision is improved, and the glove machine has multiple knitting modes.

Description

Technical Field

[0001] The present invention relates to the technical field of glove knitting machines, and in particular to a bidirectional knitting density control device based on electronic control and a glove knitting machine. Background Art

[0002] Currently, the conventional method for controlling the density of a glove knitting machine is to control the position of the density triangle by rotating a coaxial cam with a knob on the machine head to lift the density triangle. However, with the development and iteration of glove knitting machines, more efficient knitting heads with dual density triangle systems have emerged. Adjusting the density requires rotating four control knobs in sequence, which is very inconvenient and prone to errors. Summary of the Invention

[0003] The present invention provides a bidirectional knitting density control device and a glove knitting machine based on electric control, which electrically adjusts the full density in both left and right directions, greatly reducing the time required for density adjustment, improving the adjustment accuracy, and having multiple knitting modes.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An electronically controlled bidirectional knitting density control device is used in conjunction with a cam device in the needle guide head that can perform bidirectional knitting. The middle cam can be positioned flush or at full height, and the left and right density cams are adjustable.

[0006] It includes a first electric drive mechanism, wherein the output end of the first electric drive mechanism is connected to a first push rod and a third push rod, and the first push rod and the third push rod are arranged in parallel;

[0007] The first push rod has at least one density adjustment range under the drive of the first electric drive mechanism to control the positions of the left density triangle and the right density triangle to adjust the full density of bidirectional weaving;

[0008] The third push rod has at least one driving range under the drive of the first electric drive mechanism, so as to drive the middle triangle to switch between the full height position and the half height position;

[0009] Under the drive of the first electric drive mechanism, the first push rod and the third push rod have multiple position matching modes.

[0010] Preferably, the first push rod has a lowest position, a density-adjustable highest position, and a fingertip density highest position, and the three positions are distributed from low to high;

[0011] Driven by the first electric drive mechanism, the first push rod can first rise and then fall, so that a first density adjustment range and a fourth density adjustment range are formed between the lowest position and the highest adjustable density position, and a second density adjustment range and a third density adjustment range are formed between the highest adjustable density position and the highest fingertip density position;

[0012] The third push rod has a first driving position, a second driving position, and a first highest position, and the three positions are arranged from low to high; under the drive of the first electric drive mechanism, the third push rod can be lifted so that the first driving position and the second driving position form a first driving range, and the second driving position and the first highest position form a second driving range;

[0013] The first density adjustment range and the second density adjustment range correspond to the first drive position, so that the middle triangle is at full height and the weaving density is adjustable;

[0014] The third density adjustment range corresponds to the first drive range, so that the middle triangle switches from full height to half height;

[0015] The fourth density adjustment range corresponds to the second driving range, so that the middle triangle is at a half-height position and the weaving density is adjustable.

[0016] Preferably, the first electric drive mechanism comprises a first motor and a first cam connected thereto;

[0017] The first cam has a first curved groove capable of enabling the first push rod to move between the lowest position, the density-adjustable highest position, and the fingertip density highest position;

[0018] The first curved groove includes a curved groove a1, a curved groove a2, a curved groove a3 and a curved groove a4 connected in sequence, and the starting end of the curved groove a1 corresponds to the starting end of the first curved groove;

[0019] The curved groove a1 and the curved groove a4 correspond to the first density adjustment range and the fourth density adjustment range, respectively; the curved groove a2 and the curved groove a3 correspond to the second density adjustment range and the third density adjustment range, respectively;

[0020] The distance between the curved groove a1 and the rotation center of the first cam gradually increases from the starting end to the end end;

[0021] The distance between the curved groove a2 and the rotation center of the first cam gradually increases from the starting end to the end;

[0022] The distance between the curved groove a3 and the rotation center of the first cam gradually decreases from the starting end to the end;

[0023] The distance between the curved groove a4 and the rotation center of the first cam gradually decreases from the starting end to the end end.

[0024] Preferably, the first push rod further has a lowest adjustable density position, and the lowest adjustable density position is located between the lowest position and the highest adjustable density position, dividing the first density adjustment range into a first invalid density range and a first density adjustable range, and dividing the fourth density adjustment range into a second invalid density range and a second density adjustable range;

[0025] The curved groove a1 includes a curved groove a11 and a curved groove a12 connected in sequence, and the curved groove a4 includes a curved groove a41 and a curved groove a42 connected in sequence. The starting end of the curved groove a11 corresponds to the starting end of the first curved groove, and the ending end of the curved groove a41 corresponds to the ending end of the first curved groove.

[0026] The curved groove a11 and the curved groove a41 correspond to the first invalid density range and the second invalid density range respectively, and the curved groove a12 and the curved groove a42 correspond to the first density adjustable range and the second density adjustable range respectively;

[0027] The distance between the curved groove a11 and the rotation center of the first cam gradually increases from the starting end to the end;

[0028] The distance between the curved groove a12 and the rotation center of the first cam gradually increases from the starting end to the end;

[0029] The distance between the curved groove a42 and the rotation center of the first cam gradually decreases from the starting end to the end end;

[0030] The distance between the curved groove a41 and the rotation center of the first cam gradually decreases from the starting end to the end end.

[0031] Preferably, the first electric drive mechanism further includes a third cam, and the third cam is connected to the output shaft of the first motor;

[0032] The third cam has a third curved groove capable of enabling the third push rod to move between the first driving position, the second driving position and the first highest position;

[0033] The third curved groove comprises a curved groove c1, a curved groove c2 and a curved groove c3 connected in sequence, wherein the starting end of the curved groove c1 corresponds to the starting end of the third curved groove;

[0034] The curved groove c1 corresponds to the first driving position, the curved groove c2 corresponds to the second driving range, and the curved groove c3 corresponds to the second driving range;

[0035] The distance between the curved groove c1 and the rotation center of the third cam gradually remains constant from the starting end to the end;

[0036] The distance between the curved groove c2 and the rotation center of the third cam gradually increases from the starting end to the end;

[0037] The distance between the curved groove c3 and the rotation center of the third cam gradually increases from the starting end to the end.

[0038] Preferably, the left needle cam has a flush position or a full height position, the elastic cam in the cam device has a flush position and a half height position, and the right density cam has a state of shielding the elastic cam and a state of being away from the elastic cam for elastic knitting;

[0039] It also includes a second electric drive mechanism, wherein the output end of the second electric drive mechanism is connected to a second push rod, and the first push rod and the second push rod are arranged in parallel;

[0040] The second push rod has a third driving range and a working position under the drive of the second electric drive mechanism;

[0041] In the third driving range, the second push rod can make the right density cam rise to a position where it does not cover the elastic thread groove of the elastic cam, and make the left needle cam fall from the full height position to the flush position;

[0042] In the above working position, the above second push rod is in a state where the elastic triangle participates in weaving, and at the same time the above first push rod can adjust the position of the left density triangle to adjust the yarn weaving density.

[0043] Preferably, the second push rod has a third driving position and an elastic braiding position, and the two positions are arranged from low to high;

[0044] The third driving range is between the third driving position and the elastic band weaving position, and the elastic band weaving position is set as the working position;

[0045] The second electric drive mechanism includes a second motor and a second cam connected thereto;

[0046] The second cam is provided with a second curved groove capable of enabling the second push rod to move between the third driving position and the elastic braiding position.

[0047] Preferably, the second curved groove comprises a curved groove b1 and a curved groove b2 connected in sequence, and the starting end of the curved groove b1 corresponds to the starting end of the second curved groove;

[0048] The curved groove b1 corresponds to the third driving range, and the curved groove b2 corresponds to the working position.

[0049] The distance between the curved groove b1 and the rotation center of the second cam gradually increases from the starting end to the end;

[0050] The distance between the curved groove b2 and the rotation center of the second cam remains unchanged from the starting end to the end end.

[0051] A glove knitting machine comprises two needle beds spaced apart from each other, and two needle guide heads respectively arranged on the needle beds and performing reciprocating knitting motion along the knitting direction of the needle beds;

[0052] It also includes the above-mentioned knitting density control device, which is correspondingly arranged below the inner triangle device of the above-mentioned needle guide head along the knitting direction;

[0053] The cam device includes a cam base plate, a cam assembly, and a first pushing assembly, a second pushing assembly, a third pushing assembly, and a fourth pushing assembly. The cam assembly includes a left density cam, a left needle casting cam, a knitting needle cam, a middle cam, a right needle casting cam, a right density cam, an elastic cam, and an elastic guide cam, which are arranged on the cam base plate. The right density cam has a state of shielding the elastic cam and a state of being away from the elastic cam for elastic weaving.

[0054] One end of the first pushing assembly is used in conjunction with the right density triangle to adjust its position, and the other end is rotatably provided with a first pushing foot and a second pushing foot;

[0055] One end of the second pushing assembly is used in conjunction with the left density triangle to adjust its position, and the other end is rotatably provided with a third pushing foot;

[0056] The other end of the third push assembly is used in conjunction with the left needle cam to switch it between the full height position and the flush position, and the other end is rotatably provided with a fourth push foot;

[0057] The other end of the fourth pushing assembly cooperates with the middle triangle to switch it between the full height position and the half height position, and the other end is rotatably provided with a fifth pushing foot;

[0058] The first push rod abuts against the first push pin and the third push pin, the second push rod abuts against the second push pin and the fourth push pin, and the third push rod abuts against the fifth push pin.

[0059] Preferably, the elastic triangle comprises a main body mounted on the triangle base plate, and a triangle block and a guide needle block located on the front of the main body, and the triangle block and the guide needle block have a half-height position and a flush position, and can be switched from the half-height position to the flush position under the action of an external force;

[0060] The side wall of the triangular block facing the elastic guide triangle is set as the first needle running side wall;

[0061] The needle guide block is located near the end of the right density triangle, the needle guide block is spaced apart from the triangle block, and the needle guide block has a lowest point that limits the height of the elastic needle.

[0062] The elastic guide triangular side wall, the first needle running side wall and the needle guide block form an elastic needle running groove;

[0063] When the elastic triangle is not in use, the lower side wall of the right density triangle is located below the lowest point of the guide needle block.

[0064] Compared with the prior art, the present invention has the following beneficial effects:

[0065] 1. The lifting and lowering of the first push rod is controlled by the first electric drive mechanism. The first push rod can simultaneously control the positions of the left density triangle and the right density triangle, and can simultaneously control the density of bidirectional weaving, avoiding the misoperation when manually adjusting the density, and greatly reducing the time required for density adjustment. Through this mechanism, the height deviation of the left and right density can be controlled within 0.1mm, greatly improving the adjustment accuracy.

[0066] 2. The first push rod only controls the density, and the second push rod controls the full height position and half height position of the middle cam. Through the cooperation of the first push rod and the second push rod, the cam device has a state where the knitting density of no half needles is adjustable and a state where the knitting density of half needles is adjustable, so that the needle guide head can adjust the knitting density of the whole mesh and the single tuck separately, the knitting pattern is clear, and the density adjustment effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0068] Figure 1 Schematic diagram of the density control device and triangular device in the embodiment of the present invention Figure 1 ;

[0069] Figure 2 Schematic diagram of the density control device and triangular device in the embodiment of the present invention Figure 2

[0070] Figure 3 This is a schematic diagram of controlling the first push rod and the third push rod in an embodiment of the present invention;

[0071] Figure 4 This is a schematic diagram of controlling the first push rod and the second push rod in an embodiment of the present invention;

[0072] Figure 5 This is a front view of a triangular device according to an embodiment of the present invention;

[0073] Figure 6 This is a three-dimensional schematic diagram of the back side of the tripod device (including all the pushing components) in an embodiment of the present invention;

[0074] Figure 7 2. It is a perspective view of the back side of the tripod device (including the first, second and third pushing components) in an embodiment of the present invention;

[0075] Figure 8 Schematic diagram of the back side of the cam device (including the first, second and third pushing components) in an embodiment of the present invention;

[0076] Figure 9 Schematic diagram of the first curved groove in the first cam in an embodiment of the present invention;

[0077] Figure 10 Schematic diagram of the third curved groove in the third cam in an embodiment of the present invention;

[0078] Figure 11 Schematic diagram of the second curved groove in the second cam in an embodiment of the present invention;

[0079] Figure 12 This is a schematic diagram of the first push rod, the second push rod, and the third push rod in the embodiment of the present invention all being in the lowest position;

[0080] Figure 13 For the embodiment of the present invention Figure 11 Schematic diagram of the first cam and the second cam;

[0081] Figure 14 This is a schematic diagram of an embodiment of the present invention in which the first push rod is raised to the highest fingertip density position, and the second push rod and the third push rod are at the lowest position, in a double-sided knitting state;

[0082] Figure 15 For the embodiment of the present invention Figure 13 Schematic diagram of the first cam and the second cam;

[0083] Figure 16 This is a schematic diagram of an embodiment of the present invention in which the first ejector pin is lowered and in the highest density adjustable position, the third ejector pin is in the second driving position (the middle triangle is in the half-high position), and the second ejector pin is in the lowest position;

[0084] Figure 17 For the embodiment of the present invention Figure 15 Schematic diagram of the first cam and the second cam;

[0085] Figure 18This is a schematic diagram of the second push rod in the embodiment of the present invention in the rubber band weaving position (working position), in the rubber band weaving state with adjustable yarn density;

[0086] Figure 19 Schematic diagram of a rubber triangle according to an embodiment of the present invention.

[0087] Description of reference numerals:

[0088] 1. First electric drive mechanism; 11. First motor; 12. First cam; 13. First curved groove; 131. Curved groove a1; 1311. Curved groove a11; 1312. Curved groove a12; 1313. Curved groove a13; 132. Curved groove a2; 133. Curved groove a3; 134. Curved groove a4; 1341. Curved groove a41; 1342. Curved groove a42; 14. First push rod; 141. First protrusion; 15. Third push rod; 151. Third protrusion; 16. Third cam; 17. Third curved groove; 171. Curved groove c1; 172. Curved groove c2; 173. Curved groove c3;

[0089] 2. Second electric drive mechanism; 21. Second motor; 22. Second cam; 23. Second curved groove; 231. Curved groove b1; 232. Curved groove b2; 24. Second ejector pin; 241. Second protrusion; 4. First mounting base; 5. Second mounting base; 6. Ejector pin mounting base;

[0090] 7. Triangle base; 8. Left density triangle; 9. Left needle raising triangle; 10. Needle triangle; 110. Middle triangle; 120. Right needle raising triangle; 130. Right density triangle; 140. Rubber triangle; 1401. Main body; 1402. Triangle block; 1403. Guide block; 1404. First needle side wall; 1405. Lowest point; 1406. Rubber needle groove; 141. Rubber guide triangle; 150. First push assembly; 151. First drive block; 152. First push foot; 153. Second push foot; 160. Second push assembly; 161. Second Driving block; 162, third pushing foot; 170, third pushing assembly; 171, third driving block; 172, fourth pushing foot; 173, first inclined surface; 180, fourth pushing assembly; 181, fourth driving block; 182, fifth pushing foot; 183, second inclined surface; 190, first supporting block; 191, second supporting block; 192, first mounting block; 193, second mounting block; 194, right density return spring; 195, left density return spring; 196, first abutting wheel; 197, second abutting wheel; 198, mounting seat; 199, third return spring. DETAILED DESCRIPTION

[0091] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0092] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0093] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0094] A conventional triangle device includes a triangle base plate 7 and a left density triangle 8, a left needle-raising triangle 9, a knitting needle triangle 10, a middle triangle 110, a right needle-raising triangle 120, a right density triangle 130 and an elastic triangle 140 which are arranged in sequence on the front side of the triangle base plate 7, wherein the left density triangle 8 and the right density triangle 130 can both be moved along the triangle base plate 7 in an inclined direction close to the knitting needle triangle 10, the left needle-raising triangle 9 has a full-height position and a flush position, and the middle triangle 110 has a full-height position and a half-height position, wherein the full-height position means that all the triangles protrude from the triangle base plate 7, and the lower surface of the triangle is flush with the front side of the triangle base plate 7, the flush position means that all the triangles are located in the triangle base plate 7, and the upper surface of the triangle is flush with the front side of the triangle base plate 7, and the half-height position means that the triangles of half the height are located in the triangle base plate 7, and the triangles of the other half the height protrude from the front side of the triangle base plate 7. The above are all existing technologies.

[0095] The embodiment of the present invention provides a bidirectional knitting density control device based on electric control, wherein the bidirectional knitting density control device can be used in conjunction with the triangle device in the needle guide head to control the knitting density and knitting pattern, such as Figure 1-3As shown, the weaving density control device includes a first electric drive mechanism 1, wherein the output end of the first electric drive mechanism 1 is connected to a first push rod 14. Specifically, the first push rod 14 is used to control the positions of the left density triangle 8 and the right density triangle 130. Correspondingly, the first push rod 14 has at least one density adjustment range under the drive of the first electric drive mechanism 1 to control the positions of the left density triangle 8 and the right density triangle 130, so that the two can be switched between the lowest position and the highest position. Normal bidirectional weaving full density adjustment can be performed through electronic control. In fact, the first electric drive mechanism 1 can be used to directly control the positions of the left density triangle 8 and the right density triangle 130 through computer parameters to control the density of the bidirectional weaving, thereby avoiding misoperation during manual density adjustment and greatly reducing the time required for density adjustment. Through this mechanism, the height deviation of the left and right densities can be controlled within 0.1mm, which greatly improves the adjustment accuracy.

[0096] The output end of the first electric drive mechanism 1 is also connected to a third push rod 15, which is arranged parallel to the first push rod 14. The third push rod 15 is used to control the position of the middle triangle 110, so that the middle triangle 110 switches between the full height position and the half height position. Specifically, the third push rod 15 has at least one driving range under the drive of the first electric drive mechanism 1, so as to drive the middle triangle 110 to switch between the full height position and the half height position, and independently control the switching of the working position of the middle triangle 110.

[0097] Since the first push rod 14 and the third push rod 15 are both connected under the first electric drive mechanism 1, the first push rod 14 and the third push rod 15 have multiple position coordination modes, that is, the middle triangle 110 can be respectively in a density-adjustable weaving mode at a half-high working position and a full-high working position. The weaving modes are clearly divided and easier to operate.

[0098] The first mandrel 14 has a lowest position, a density-adjustable highest position, and a fingertip density-highest position, wherein the lowest position, the density-adjustable highest position, and the fingertip density-highest position are distributed from low to high, wherein the lowest position referred to here is the lowest position of the first mandrel 14, the density-adjustable highest position and the fingertip density-highest position correspond to two positions on the left and right density triangles, the fingertip density-highest position is higher than the density-adjustable highest position, since the fingertips of the gloves need to be densified when knitting, and the position of the left and right density triangles corresponding to the fingertip density-highest position refers to the place where the glove fingertips are most densified, and the position of the left and right density triangles corresponding to the density-adjustable highest position refers to the position of the maximum density when knitting the part other than the fingertips. In actual use, the same density as the fingertips is not required, so the first mandrel 14 sets the density-adjustable highest position and the fingertip density-highest position. The two positions correspond to the two positions of the left and right density triangles; the first density adjustment range and the fourth density adjustment range are correspondingly set between the lowest position and the highest adjustable density position, and the second density adjustment range and the third density adjustment range are correspondingly set between the highest fingertip density position and the highest adjustable density position. In this embodiment, the first push rod 14 first rises and then falls, passing through the first density adjustment range, the second density adjustment range, the third density adjustment range and the fourth density adjustment range in sequence. The intersection point of the second density adjustment range and the third density adjustment range is the highest fingertip density position. In the first density adjustment range and the second density adjustment range, the first push rod 14 is in the rising stage, and full density adjustment is performed. In the third density adjustment range and the fourth density adjustment range, the first push rod 14 is in the descending stage, and full density adjustment is performed.

[0099] The third push rod 15 has a first driving position, a second driving position and a first highest position, and the first driving position is at the lowest position. The first driving position, the second driving position and the first highest position are distributed from low to high. Correspondingly, the third push rod 15 has a first driving range and a second driving range. The first driving position corresponds to the lowest position, the first driving position and the second driving position correspond to the first driving range, and the second driving position and the first highest position correspond to the second driving range. Therefore, in the rising stage of the third push rod 15, it passes through the first driving position, the second driving position to the first highest position in sequence, that is, it passes through the first driving range and the second driving range in sequence to the first highest position, realizing the switching of the middle triangle from the full high position to the half high position.

[0100] Specifically, the first and second density adjustment ranges correspond to the first drive position, so that the middle cam 110 is at full height and the weaving density is adjustable; the third density adjustment range corresponds to the first drive range, so that the middle cam 110 switches from full height to half height; the fourth density adjustment range corresponds to the second drive range, so that the middle cam 110 is at half height and the weaving density is adjustable. In summary, the first and second density adjustment ranges can correspond to full mesh weaving with adjustable density, while the third density adjustment range is in the transition zone, and the fourth density adjustment range can correspond to tuck weaving with adjustable density.

[0101] Correspondingly, the first electric drive mechanism 1 includes a first motor 11 and a first cam 12 connected thereto, and the first cam 12 is transmission-connected to the end of the first push rod 14. The first cam 12 has a first curved groove 13 that enables the first push rod 14 to move between the lowest position, the highest position of adjustable density and the highest position of fingertip density. The first curved groove 13 is used to drive the first push rod 14 to rise and fall, thereby controlling the density positions of the left density triangle 8 and the right density triangle 130.

[0102] The first push rod 14 is provided with a first oblique groove and a first protrusion 141. The first output shaft of the first motor 11 passes through the first oblique groove and the first protrusion 141 is placed in the first curved groove 13. The first motor 11 rotates to move the first protrusion 141 along the first curved groove 13, thereby changing the relative position of the first protrusion 141 and the first output shaft of the first motor 11, and driving the first push rod 14 to move between the lowest position, the highest position of adjustable density and the highest position of fingertip density.

[0103] Specifically, such as Figure 9 As shown, the first curved groove 13 includes a curved groove a1 131, a curved groove a2 132, a curved groove a3 133 and a curved groove a4 134 connected in sequence, wherein the starting end of the curved groove a1 131 corresponds to the starting end of the first curved groove 13; specifically, the curved groove a1 131 and the curved groove a4 134 correspond to the first density adjustment range, the curved groove a2 132 and the curved groove a3 133 correspond to the second density adjustment range, the starting position of the curved groove a1 131 and the end position of the curved groove a4 134 correspond to the first lowest point of the first push rod 14, the connection position of the curved groove a1 131 and the curved groove a2 132 and the connection position of the curved groove a3 133 and the curved groove a4 134 correspond to the highest adjustable density position of the first push rod 14, and the connection position of the curved groove a2 132 and the curved groove a3 133 corresponds to the highest fingertip density position of the first push rod 14.

[0104] Specifically, the distance between the curved groove a1 131 and the rotation center of the first cam 12 is La1, and La1 gradually increases from the starting end to the end end, so when the first protrusion 141 of the first push rod 14 moves from the starting point of the curved groove a1 131 to the end end, the first push rod 14 gradually rises and moves from the lowest position to the highest position of adjustable density; the distance between the curved groove a2 132 and the rotation center of the first cam 12 is La2, and La2 gradually increases from the starting end to the end end, so when the first protrusion 141 of the first push rod 14 moves from the starting point of the curved groove a2 132 to the end end, the first push rod 14 gradually rises and moves from the highest position of adjustable density to the highest position of fingertip density; the distance between the curved groove a3 133 and the rotation center of the first cam 12 is La3, and La3 gradually decreases from the starting end to the end end, so the first protrusion 141 of the first push rod 14 moves from the curved groove a3 133 to the rotation center of the first cam 12 As the first push rod 14 moves from the starting point of the curved groove a3133 to the end point, the first push rod 14 gradually lowers, moving from the highest fingertip density position to the highest adjustable density position. The distance between the curved groove a4 134 and the rotation center of the first cam 12 is La4, and La4 gradually decreases from the starting end to the end point. Therefore, as the first protrusion 141 of the first push rod 14 moves from the starting point of the curved groove a3133 to the end point, the first push rod 14 gradually lowers, moving from the highest adjustable density position to the lowest position. In summary, through the cooperation of the first protrusion 141 and the first curved groove 13, the first push rod 14 moves from the lowest position to the highest position, and then to the lowest position, which in turn causes the left density triangle 8 and the right density triangle 130 to rise from the lowest position to the highest position, and then to the lowest position, achieving full density adjustment. Preferably, the first curved groove 13 is a closed curve, that is, the starting point of the curved groove a1 131 and the end point of the curved groove a4 134 are at the same position, and the two are connected end to end, so that the curved groove a1 131, the curved groove a2 132, the curved groove a3 133 and the curved groove a4 134 form a closed annular curved groove, which is convenient for processing and positioning. Since the first curved groove 13 is a completed closed curved groove, the first protrusion 141 at the lowest position is also at the zero position. In this embodiment, the first motor 11 is first reversed. During the weaving process, the first protrusion 141 can pass through the curved groove a1 131, the curved groove a2 132, the curved groove a3 133 and the curved groove a4 134 in sequence to reach the zero position again. Then, when weaving is needed again, the first motor 11 rotates forward so that the first protrusion 141 passes through the curved groove a4 134, the curved groove a3 133, the curved groove a2 132 and the curved groove a1 When 131 reaches the zero position again, the position of the first push rod 14 is first raised and then lowered. It should be noted that the raising of the left density triangle 8 and the right density triangle 130 is achieved by the lifting of the first push rod 14, while the lowering of the left density triangle 8 and the right density triangle 130 is achieved by the return spring on the triangle base plate 7.The first motor 11 is a servo motor, which has a positioning accuracy of up to micron level compared to a stepper motor, has strong dynamic response capability, is stable and vibration-free when running at low speed, and has strong anti-interference capability.

[0105] Specifically, in actual use, the first push rod 14 also has a density adjustable lowest position, which is located between the lowest position and the density adjustable highest position. Therefore, the density adjustable lowest position divides the first density adjustment range into a first invalid density range and a first density adjustable range, and divides the fourth density adjustment range into a second invalid density range and a second density adjustable range. Figure 9As shown, the corresponding curved groove a1 131 includes a curved groove a11 1311 and a curved groove a12 1312 connected in sequence, and the curved groove a4 134 includes a curved groove a41 1341 and a curved groove a42 1342 connected in sequence. The starting end of the curved groove a11 1311 corresponds to the starting end of the first curved groove 13, the curved groove a12 1312 is connected to the curved groove a2 132, the end of the curved groove a41 1341 corresponds to the end of the first curved groove 13, and the curved groove a42 1342 is connected to the curved groove a3 133. The curved groove a11 1311 and the curved groove a41 1341 correspond to the first invalid density range and the second invalid density range, respectively. The curved groove a12 1312 and the curved groove a42 1342 correspond to the first density adjustable range and the second density adjustable range. The curved groove a11 1311 and the curved groove a12 1312 correspond to the first density adjustable range and the second density adjustable range. The connection position of 1312 and the connection position of the curved groove a41 1341 and the curved groove a42 1342 correspond to the lowest adjustable density position; correspondingly, the rotation center of the curved groove a11 1311 and the first cam 12 is La1, and La1 gradually increases from the starting end to the end, so when the first protrusion 141 of the first push rod 14 moves from the starting end of the curved groove a11 1311 to the end point, the first push rod 14 gradually rises and moves from the lowest position to the lowest adjustable density position; the distance between the curved groove a12 1312 and the rotation center of the first cam 12 is also La1, and La1 gradually increases from the starting end to the end point, so when the first protrusion 141 of the first push rod 14 moves from the starting end of the curved groove a12 1312 to the end point, the first push rod 14 gradually rises and moves from the lowest adjustable density position to the highest adjustable density position; the curved groove a42 The distance between 1342 and the rotation center of the first cam 12 is La4, and La4 gradually decreases from the starting end to the end end. Therefore, when the first protrusion 141 of the first push rod 14 moves from the starting point of the curved groove a42 1342 to the end point, the first push rod 14 gradually decreases and moves from the highest adjustable density position to the lowest adjustable density position; the distance between the curved groove a41 1341 and the rotation center of the first cam 12 is also La4, and La4 gradually increases from the starting end to the end end. Therefore, when the first protrusion 141 of the first push rod 14 moves from the starting point of the curved groove a41 1341 to the end point, the first push rod 14 gradually decreases and moves from the lowest adjustable density position to the lowest position.Among them, the first and second density-free adjustment ranges between the above-mentioned lowest position and the lowest adjustable density position are actually due to the acceleration of the motor when it is just started. Due to the acceleration of the motor, the adjustment of the density position of the left and right density triangles is uncontrollable and non-linear. Therefore, after the motor is started for a period of time, that is, after the first push rod 14 rises from the lowest position to the lowest adjustable density position, that is, after the motor reverses so that the first protrusion 141 passes through the curved groove a11 1311 or the motor rotates forward so that the first protrusion 141 passes through the curved groove a41 1341, the first motor 11 rotates stably, and then linear adjustment of the left and right densities can be performed, thereby ensuring the accuracy and controllability of the density adjustment.

[0106] Correspondingly, such as Figure 4 As shown, the first electric drive mechanism 1 further includes a third cam 16, which is also connected to the output shaft of the first motor 11. The third cam 16 has a third curved groove 17 that enables the third push rod 15 to move between the first drive position, the second drive position, and the first highest position. The third push rod 15 is provided with a third inclined groove and a third protrusion 151. The first output shaft of the first motor 11 passes through the third inclined groove, and the third protrusion 151 is positioned in the third curved groove 17. The rotation of the first motor 11 causes the third protrusion 151 to move along the third curved groove 17, thereby changing the relative position of the third protrusion 151 and the first output shaft of the first motor 11, thereby driving the third push rod 15 to move between the first drive position, the second drive position, and the first highest position.

[0107] Specifically, such as Figure 10The third curved groove 17 includes a curved groove c1 171, a curved groove c2 172 and a curved groove c3 173 connected in sequence. The starting end of the curved groove c1 171 corresponds to the starting end of the third curved groove 17. Specifically, the curved groove c1 171 corresponds to the first driving position, the curved groove c2 172 corresponds to the second driving range, and the curved groove c3 173 corresponds to the second driving range. The distance between the curved groove c1 171 and the rotation center of the third cam 16 is Lc1, and Lc1 remains unchanged from the starting end to the end. At this time, the third push rod 15 is always in the first driving position, that is, it is actually in the lowest position. At this time, the middle triangle 110 is in the full height position, wherein the end of the curved groove c1 171 is also the first driving position, wherein the curved groove c2 172 corresponds to the second driving range. The distance between 172 and the rotation center of the third cam 16 is Lc2, which gradually increases from the starting end to the end. At this time, the third push rod 15 moves within the first driving range, from the first driving position to the second driving position. At this time, the third push rod 15 rises from the first driving position (the lowest position) to the second driving position. At the second driving position, the middle cam 110 is in the half-height position, corresponding to the tuck knitting state; wherein the distance between the curved groove c3 173 and the rotation center of the third cam 16 is Lc3, which gradually increases from the starting end to the end. At this time, the third push rod 15 continues to rise until it moves to the first highest position, and the middle cam 110 remains in the half-height position, corresponding to the tuck knitting state. It should be noted that the switching of the middle cam 110 from the full height position to the half height position is achieved by the raising of the second push rod 24, and the switching of the middle cam 110 from the half height position to the full height position is achieved by the return spring installed on the cam base plate 7.

[0108] Since the first cam 12 and the third cam 16 are connected to the output shaft of the first motor 11 at the same time, the first curved groove 13 and the third curved groove 17 have a corresponding relationship, and the movements of the first push rod 14 and the third push rod 15 have a corresponding relationship. Specifically, Figure 9 、 10 As shown in , 12, 13, 14 and 15, taking the reversal of the first motor 11 as an example, in the process of the first push rod 14 rising from the lowest position to the highest fingertip density position, the third push rod 15 is correspondingly in the first driving position, that is, when the left and right density triangles are adjusting the density, the middle triangle 110 is in the full height position, and the corresponding curved groove a1 131 and curved groove a2 132 correspond to the curved groove c1171, the guide needle head can be in the normal knitting state (one-way or two-way), and the knitting density can be adjusted, as shown in FIG. Figure 16 and 17As shown, when the first push rod 14 descends from the highest fingertip density position to the highest adjustable density position, the third push rod 15 moves in the second driving range until the second driving position. In the second driving position, the middle triangle 110 is in a half-height position. At this time, the middle triangle 110 switches from the full-height position to the half-height position. After that, the middle triangle 110 corresponds to the tuck knitting state, and the corresponding curved groove a3 133 corresponds to the curved groove c2 172. This is a transition switching curve between the full-height position and the half-height position of the middle triangle 110. When the first push rod 14 moves from the highest adjustable density position to the lowest position, the third push rod 15 is always in the second driving range, the middle triangle 110 is in a half-height position, the middle triangle 110 corresponds to the tuck knitting state, the corresponding curved groove a4 134 corresponds to the curved groove c3 173. At this time, the needle guide mechanism is in the tuck knitting state (unidirectional or bidirectional), and the knitting density is adjustable. It should be noted that, due to the installation error between the first cam 12 and the third cam 16 during the initial installation, specifically, the curved groove a11 1311 also has a curved groove a13 1313 in the initial section, which is used to compensate for the error between the two cams caused by assembly and prevent working position conflict after the program compensation. Because the first motor 11 rotates counterclockwise at the beginning, only the curved groove set counterclockwise has the curved groove a13 1313 in the opposite direction, while the curved groove set clockwise does not.

[0109] Moreover, in this embodiment, Figure 5 and Figure 6 As shown, the elastic triangle 140 in the triangle device has a half-height position and a flush position, and the right density triangle 130 has a state of shielding the elastic triangle 140 and a state of being away from the elastic triangle 140 for elastic weaving, that is, the right density triangle 130 shields the elastic triangle 140 and the elastic needle groove of the elastic triangle 140, so that the elastic triangle 140 cannot be used for elastic weaving. When the right density triangle 130 is driven by the outside and away from the rubber triangle, the shielded part moves upward, so that the elastic needle groove of the elastic triangle 140 is exposed, and elastic weaving can be performed; specifically, as Figure 1-Figure 4As shown, the weaving density control device also includes a second electric drive mechanism 2, the output end of the second electric drive mechanism 2 is connected to a second push rod 24, the first push rod 14 and the second push rod 24 are arranged in parallel, specifically, the second push rod 24 can simultaneously control the positions of the right density triangle 130 and the left needle-raising triangle 9, specifically, the second push rod 24 has a third driving range and a working position under the drive of the second electric drive mechanism 2; in the third driving range, the second push rod 24 can make the right density triangle 130 rise to a position that does not cover the rubber needle groove of the rubber triangle 140, and make the left needle-raising triangle 9 fall from the full height position to the flush position, and then the rubber triangle 140 can participate in weaving and perform rubber weaving; in the working position, the rubber triangle 140 has already participated in weaving, and at the same time, the position of the left density triangle 130 can continue to be adjusted by the first push rod 14 to adjust the yarn weaving density. It can be achieved by electric control that one push rod can control whether the rubber weaving is carried out or not, which is more efficient and does not conflict with normal weaving and density adjustment.

[0110] It should be noted that when the guide needle head is knitting the glove cuff, when the elastic band is knitted in one direction, the yarn can be knitted in one direction or in two directions. Assuming that the front guide needle head is knitting the elastic band in the first direction, the second push rod 24 is lifted up, so that the right density triangle 130 rises to a position that does not cover the needle groove of the elastic band triangle 140, and the left needle triangle 9 is lowered to the flush position to knit the elastic band. The yarn is knitted in the first direction. After the first direction is knitted, the guide needle head can be moved to the initial position in the second direction, and the rear guide needle head is knitting the elastic band and yarn in the second direction. At this time, the rear guide needle head is in the position corresponding to the second push rod 2 4, the elastic triangle 140 of the machine is exposed to the needle groove, and the elastic and yarn are knitted. The left density triangle 8 can be adjusted to adjust the yarn knitting density, that is, one circle of the single-sided yarn of the glove is all with elastic; of course, the front needle guide head can also knit the yarn in the second direction. When knitting the yarn in the second direction, the second push rod 24 falls to the lowest point, and then the first push rod 14 adjusts the left and right density triangles to knit the yarn in the second direction, but this circle of yarn does not carry the elastic thread. At this time, the rear needle guide head correspondingly knits the elastic and yarn in the second direction, that is, one circle of the single-sided yarn of the glove is with elastic and one circle is not with elastic.

[0111] Specifically, the second push rod 24 has a third driving position and an elastic weaving position, and the third driving position and the elastic weaving position are arranged from low to high. When the second push rod 24 is in the third driving position 9 (the lowest position), the right density triangle 130 is in the lowest position. At this time, the right density triangle 130 partially covers the elastic needle groove of the elastic triangle 140, and the elastic triangle 140 does not participate in weaving. When the second push rod 24 is in the elastic weaving position, the right density triangle 130 does not cover the elastic needle groove of the elastic triangle 140, and can be The rubber band is knitted, and at the same time, the left needle triangle 9 falls from the full height position to the flush position, wherein the third drive range is between the third drive position and the rubber band knitting position, and the first drive range can make the right density triangle 130 rise to the position of the rubber band needle groove that does not cover the rubber band triangle 140, and make the left needle triangle 9 fall from the full height position to the flush position, the rubber band knitting position is the working position, and the rubber band triangle 140 is in the knitting state. At this time, the left density triangle 8 can be adjusted accordingly by the first push rod 14 to adjust the yarn loop density. Correspondingly, the second electric drive mechanism 2 includes a second motor 21 and a second cam 22 connected thereto. The second cam 22 has a second curved groove 23 that enables the second push rod 24 to move between the third drive position and the rubber band knitting position. Among them, the second motor 21 also adopts a servo motor.

[0112] The second push rod 24 is provided with a second oblique groove and a second protrusion 241. The second output shaft of the second motor 21 passes through the second oblique groove and the second protrusion 241 is placed in the second curved groove 23. The second motor 21 rotates to move the second protrusion 241 along the second curved groove 23, thereby changing the relative position of the second protrusion 241 and the second output shaft in the second motor 21, driving the second push rod 24 to move between the third driving position and the elastic weaving position.

[0113] Specifically, such as Figure 11 、 12, 13, 18, the second curved groove 23 includes a curved groove b1 231 and a curved groove b2 232 connected in sequence, the starting end of the curved groove b1 231 corresponds to the starting end of the second curved groove 23, wherein the curved groove b1 231 corresponds to the third driving range, the curved groove b2 232 corresponds to the working position, the starting end of the curved groove b1 231 corresponds to the third driving position, that is, the lowest position of the second push rod 24, and the connection position of the curved groove b1 231 and the curved groove b2 232 corresponds to the rubber weaving position; wherein the distance between the curved groove b1 231 and the rotation center of the second cam 22 is Lb1, and Lb1 gradually increases from the starting end to the end, at this time, the second push rod 24 rises from the third driving position to the rubber weaving position, the right density triangle 130 rises to a position that does not cover the rubber triangle 140, and forms an rubber needle groove, the left needle triangle 9 drops to a flush position, and rubber weaving can be performed, wherein the curved groove b2 The distance between 232 and the rotation center of the second cam 22 is Lb2, and Lb2 remains unchanged from the starting end to the end. At this time, the position of the second push rod 24 remains unchanged. During this period, the rubber triangle 140 performs rubber weaving normally. It should be noted that the position of the right density triangle 130 after rising depends on the curved groove b1 231. Generally, when the second push rod 24 is in the rubber weaving position, the right density triangle 130 is in the highest position that can rise (the fingertip encryption position). In this way, when performing rubber weaving and adjusting the position of the left density triangle 9, the first push rod 14 will not affect the full position adjustment of the left density triangle 8 (corresponding to the first push rod 14 moving from the lowest density to the fingertip encryption highest position). It should be noted that the left needle triangle 9 is switched from the full height position to the flush position by the rise of the second push rod 24, and the switch from the flush position to the full height position is achieved by the reset spring on the triangle base plate 7.

[0114] The first motor 11 is mounted on the first mounting seat 4, the second motor 21 is mounted on the second mounting seat 5, and the first push rod 14, the second push rod 24 and the third push rod 15 are respectively arranged in three horizontal adjustment slots on the push rod mounting seat 6, and the upper end of the adjustment slot is open. The two ends of the first mounting seat 4 and the second mounting seat 5 are connected respectively through the key push rod mounting seat 6.

[0115] An embodiment of the present invention further provides a glove knitting machine, specifically comprising two needle beds spaced apart from each other, and two needle guide heads respectively disposed on the needle beds and performing reciprocating knitting motion along the knitting direction of the needle beds, and further comprising two knitting density control devices as described above, the two knitting density control devices being correspondingly disposed below the inner cam devices of the two needle guide heads along the knitting direction; Figure 5As shown, the cam device includes a cam base plate 7, a cam assembly and a first pushing assembly 150, a second pushing assembly 160, a third pushing assembly 170 and a fourth pushing assembly 180, and the cam assembly includes a left density cam 8, a left needle raising cam 9, a knitting needle cam 10, a middle cam 110, a right needle raising cam 120, a right density cam 130, an elastic cam 140 and an elastic guide cam 141 arranged on the cam base plate 7, wherein the left density cam 8 and the right density cam 130 can be moved along the cam base plate 7 Tilt toward the direction close to the knitting needle triangle 10, the left needle triangle 9 has a full height position and a flush position, the middle triangle 110 has a full height position and a half height position, in this embodiment, the elastic triangle 140 has a flush position and a half height position, and the right density triangle 130 has a state of shielding the elastic triangle 140 and a state of being away from the elastic triangle 140 for elastic weaving; Specifically, one end of the first pushing assembly 150 is used in conjunction with the right density triangle 130 to adjust its position, and the other end is rotated with a first pushing foot 152 And the second push foot 153, one end of the second push assembly 160 is used in conjunction with the left density triangle 8 to adjust its position, and the other end is rotated with a third push foot 162, the other end of the third push assembly 170 is used in conjunction with the left needle triangle 9 to switch between the full height position and the flush position, and the other end is rotated with a fourth push foot 172, the other end of the fourth push assembly 180 is used in conjunction with the middle triangle 110 to switch between the full height position and the half height position, and the other end is rotated with a fifth push foot 182 ; Among them, the first push rod 14 is in contact with the first push foot 152 and the third push foot 162 to achieve the purpose of simultaneously controlling the positions of the left density triangle 8 and the right density triangle 130, and performing two-way full density adjustment; wherein the second push rod 24 is in contact with the second push foot 153 and the fourth push foot 172 to achieve the purpose of simultaneously controlling the right density triangle 130 and the left needle-raising triangle 9, and performing rubber band weaving; the third push rod 15 is in contact with the fifth push foot 182 to realize the switching of the middle triangle 110 between the full height position and the half height position.

[0116] Specifically, such as Figure 5 、 6, 7, 8, the rubber triangle 140 and the knitting needle triangle 10 in the triangle device are installed on the triangle bottom plate 7, and the triangle bottom plate 7 is provided with a first sliding groove and a second sliding groove. The first sliding groove is tilted, and the upper end is closer to the knitting needle triangle 10 to the left when viewed from the front. The second sliding groove is tilted, and the upper end is closer to the knitting needle triangle 10 to the right when viewed from the front. A first sliding block is provided on the back of the right density triangle 130, and the first sliding block is slidingly provided in the first sliding groove. A second sliding block is provided on the back of the left density triangle 8, and the second sliding block slides The first supporting block 190 and the second supporting block 191 are provided on the back of the triangular bottom plate 7 in the second sliding groove. The first supporting block 190 is connected to the first sliding block, and the second supporting block 191 is connected to the second sliding block. A first mounting block 192 and a second mounting block 193 are provided on the back of the triangular bottom plate 7. A right density return spring 194 is connected between the first right connecting rod provided on the first mounting block 192 and the upper end of the first supporting block 190, and a left density return spring 194 is connected between the upper ends of the second mounting block 193 and the second supporting block 191. The density reset spring 195 is used to reset the left and right density triangles. The right density reset spring 194 and the left density reset spring 195 are both in a stretched state. Correspondingly, the first pushing assembly 150 includes a first driving block 151. The first driving block 151 is V-shaped. One end of the first driving block 151 is rotatably mounted on the back of the triangle base plate 7, and the other end abuts against the first abutting rod provided at the lower end of the first support block 190. The first pushing foot 152 and the second pushing foot 153 are rotatably connected to the V-shaped protrusion of the first driving block 151. The first push rod 14 rises and correspondingly lifts the first push pin 152 and the third push pin 162, which will cause the left and right density triangles to rise and adjust the density. The first push rod 14 then descends, and the left and right density triangles will descend to the lowest point under the action of the left density return spring 195 and the right density return spring 194.

[0117] The left needle cam 9 is located at the mounting hole, and the back side is connected with a first extending shaft, which passes through the mounting seat 198 and is located on the outer side of the back side of the mounting seat 198. A first abutting wheel 196 is provided at the end of the first extending shaft, and there is a certain distance between the first abutting wheel 196 and the back side of the mounting seat 198. The bottom of the left needle cam 9 is provided with a first limiting protrusion, and the first extending shaft between the left needle cam 9 and the mounting seat 198 is sleeved with a first return spring. When the left needle cam 9 is in the full height position, the first return spring is in a compressed state, and the first limiting protrusion abuts against the back side of the cam bottom plate 7, so that the left needle cam 9 is stably installed. Correspondingly, the third pushing assembly 170 includes a third driving block 171, and the third driving block 171 is set to V-shaped. The V-shaped protrusion of the third driving block 171 When the second push rod 24 pushes up the fourth push pin 172, the first inclined surface 173 of the third driving block 171 gradually abuts against the first abutting wheel 196, so that the back of the first extended axial triangular base plate 7 moves, so that the left needle cam 9 switches from the full height position to the flush position, until the first abutting wheel 196 abuts against the highest point of the first inclined surface 173, and the left needle cam 9 is in the flush position. When the second push rod 24 moves downward, under the action of the first return spring and the third return spring 199, the front side of the first extended axial triangular base plate 7 moves until the first limiting protrusion abuts against the back side of the triangular base plate 7, and the left needle cam 9 switches from the flush position to the full height position, and the third driving block 171 is reversed and reset. As a result, the second push rod 24 rises and correspondingly lifts the second push foot 153 and the fourth push foot 172, which will cause the right density triangle 130 to rise and the left needle triangle 9 to switch from the full height position to the flush position. The second push rod 24 drops, and the left needle triangle 9 will be restored to the full height position under the action of the first return spring and the third return spring 199, and the right density triangle 130 will return to the lowest position under the action of the right density return spring 194.

[0118] Correspondingly, the middle triangle 110 is located at the mounting hole, and a second extending shaft is connected to the back side, the second extending shaft passes through the mounting seat 198 and is located on the outside of the back side of the mounting seat 198, and a second abutting wheel 197 is provided at the end of the second extending shaft, and there is a certain distance between the second abutting wheel 197 and the back side of the mounting seat 198, and a second limiting protrusion is provided at the bottom of the middle triangle 110, and a second return spring is sleeved on the second extending shaft between the middle triangle 110 and the mounting seat 198. When the middle triangle 110 is in the full height position, the second return spring is in a compressed state, and the second limiting protrusion abuts against the back side of the triangular bottom plate 7, so that the middle triangle 110 is stably installed, and correspondingly, the fourth pushing assembly 180 includes a fourth driving block 181, and the middle part of the fourth driving block 181 is rotatably mounted on the triangular bottom plate 7 On the back, the fifth pushing foot 182 is rotatably mounted on one end of the fourth driving block 181, and the other end is provided with a second inclined surface 183. In the process of the third push rod 15 lifting the fifth pushing foot 182, the inclined surface of the fourth driving block 181 gradually abuts against the second abutting wheel 197, causing the back of the second extended axial triangular base plate 7 to move, causing the middle triangle 110 to switch from the full height position to the half height position, until the second abutting wheel 197 abuts against the highest point of the second inclined surface 183, and the middle triangle 110 is in the half height position. When the third push rod 15 moves downward, under the action of the second return spring, the front side of the second extended axial triangular base plate 7 moves until the second limiting protrusion abuts against the back side of the triangular base plate 7, and the middle triangle 110 switches from the half height position to the full height position, and at the same time forces the fourth driving block 181 to reverse and reset.

[0119] Specifically, such as Figure 19As shown, the rubber triangle 140 includes a main body 1401, a triangle block 1402 and a guide needle block 1403. The main body 1401 is arranged in the mounting hole on the triangle base plate 7, and the front side is flush with the front side of the triangle base plate 7. The triangle block 1402 and the guide needle block 1403 are integrally formed on the front side of the main body 1401, and the triangle block 1402 and the guide needle block 1403 have a half-height position and a flush position. The half-height position here is relative to the other triangles, and the height is half of the height of the other triangles completely protruding from the triangle base plate 7, which is equivalent to the half-height position of the middle triangle 110. Specifically, a third protruding shaft is provided on the back of the main body 1401, and the third protruding shaft passes through the second mounting block 192 and can slide relative to the second mounting block 192. The back of the main body 1401 and the second mounting block 192 are aligned. The fourth reset spring is sleeved on the third extending shaft between the mounting blocks 192, and the fourth reset spring is in a compressed state, and a third limiting protrusion is provided on the back of the main body 1404, and the third limiting protrusion abuts against the back of the triangular base plate 7 to ensure the limited installation of the main body 1404. When the triangular block 1402 is not subjected to external force, the third limiting protrusion abuts against the triangular base plate 7, and the triangular block 1402 and the guide needle block 1403 protrude from the outside of the front of the triangular base plate and are in a half-high position. When the triangular block 1402 is subjected to external force, the third limiting protrusion moves away from the back of the triangular base plate 7, and the fourth reset spring is compressed. The triangular block 1402 and the guide needle block 1403 can be lowered to a flush position (a position flush with the triangular base plate 7). For example, during the weaving process, Figure 5For example, when the cam device moves from left to right, the low needle will not be affected. When the high needle is moved, the right density triangle 130 will rise and pass through the elastic needle groove. When the cam device moves from right to left, the low needle will move, and the high needle will press the triangle block 1402, so that the triangle block drops to the flush position. After passing, it is reset to the half-high position by the fourth reset spring, and the low needle will move from above the triangle block 1402; specifically, the triangle block 1402 is set to the side wall of the elastic guide triangle 141 as the first needle. The side wall 1404 forms a needle groove with the lower side wall of the elastic guide triangle 141 for the needle to enter, and the guide needle block 1403 is located near the end of the right density triangle 130. The guide needle block 1403 and the triangle block 1402 are spaced apart, and the guide needle block 1403 has a lowest point 1405 for limiting the height of the elastic needle. The lowest point 1405 is located at the end of the guide needle block 1403 near the right needle starting triangle 120. The side wall of the elastic guide triangle 141, the first needle side wall 1404 and the guide needle block 14 03 forms a rubber band needle groove, wherein the lowest point 1405 of the guide needle block 1403 is used to limit the height of the rubber band needle, so that the height of the rubber band needle is uniform, which is more convenient for the uniform knitting of the rubber band of the gloves. When the rubber triangle 140 is not in use, the lower side wall of the right density triangle 130 is located below the lowest point 1405 of the guide needle block 1403, thereby shielding the rubber band needle groove. Specifically, the shielding state of the rubber triangle is that the second push rod is at the lowest point 1405, that is, the right density triangle 130 is at When it is in the lowest position, the specific position of the right density triangle 130 can actually be determined by the designer. As long as the lower side wall of the right density triangle 130 is located below the lowest point 1405 of the guide needle block 1403, the entire rubber band needle groove needs to be covered. When the rubber band is knitted, the right density triangle 130 moves up to expose the lowest point 1405 of the guide needle block 1403 and the rubber band needle groove, and the rubber band can be knitted. The rising position of the right density triangle 130 is determined by the second curved groove 23.

[0120] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A bidirectional knitting density control device based on electric control, used in conjunction with a triangular device capable of bidirectional knitting in a needle guide head, wherein: The middle triangle in the triangle device has a flush position or a full height position, and the left and right density triangles are adjustable for use; It is characterized in that it comprises a first electric drive mechanism, wherein the output end of the first electric drive mechanism is connected to a first push rod and a third push rod, and the first push rod and the third push rod are arranged in parallel; The first push rod has at least one density adjustment range under the drive of the first electric drive mechanism to control the positions of the left density triangle and the right density triangle to adjust the full density of bidirectional weaving; The third push rod has at least one driving range under the drive of the first electric drive mechanism, so as to drive the middle triangle to switch between a full height position and a half height position; Under the drive of the first electric drive mechanism, the first push rod and the third push rod have multiple position matching modes.

2. The braiding density control device according to claim 1, characterized in that: The first push rod has a lowest position, a density-adjustable highest position, and a fingertip density highest position, and the three positions are distributed from low to high; Driven by the first electric drive mechanism, the first push rod can first rise and then fall, so that a first density adjustment range and a fourth density adjustment range are formed between the lowest position and the highest adjustable density position, and a second density adjustment range and a third density adjustment range are formed between the highest adjustable density position and the highest fingertip density position; The third push rod has a first driving position, a second driving position, and a first highest position, and the three positions are arranged from low to high; under the drive of the first electric drive mechanism, the third push rod can be lifted so that the first driving position and the second driving position form a first driving range, and the second driving position and the first highest position form a second driving range; The first density adjustment range and the second density adjustment range correspond to the first driving position, so that the middle triangle is at full height and the braiding density is adjustable; The third density adjustment range corresponds to the first driving range, so that the middle triangle switches from full height to half height; The fourth density adjustment range corresponds to the second driving range, so that the middle triangle is at a half-height position and the weaving density is adjustable.

3. The braiding density control device according to claim 2, characterized in that: The first electric drive mechanism includes a first motor and a first cam connected thereto; The first cam has a first curved groove capable of enabling the first push rod to move between the lowest position, the density-adjustable highest position, and the fingertip density highest position; The first curved groove includes a curved groove a1, a curved groove a2, a curved groove a3 and a curved groove a4 connected in sequence, and the starting end of the curved groove a1 corresponds to the starting end of the first curved groove; The curved groove a1 and the curved groove a4 correspond to the first density adjustment range and the fourth density adjustment range respectively, and the curved groove a2 and the curved groove a3 correspond to the second density adjustment range and the third density adjustment range respectively; The distance between the curved groove a1 and the rotation center of the first cam gradually increases from the starting end to the end; The distance between the curved groove a2 and the rotation center of the first cam gradually increases from the starting end to the end; The distance between the curved groove a3 and the rotation center of the first cam gradually decreases from the starting end to the end; The distance between the curved groove a4 and the rotation center of the first cam gradually decreases from the starting end to the end end.

4. The braiding density control device according to claim 3, characterized in that: The first push rod further has a density adjustable lowest position, and the density adjustable lowest position is located between the lowest position and the density adjustable highest position, dividing the first density adjustment range into a first invalid density range and a first density adjustable range, and dividing the fourth density adjustment range into a second invalid density range and a second density adjustable range; The curved groove a1 includes a curved groove a11 and a curved groove a12 connected in sequence, and the curved groove a4 includes a curved groove a41 and a curved groove a42 connected in sequence. The starting end of the curved groove a11 corresponds to the starting end of the first curved groove, and the end of the curved groove a41 corresponds to the end of the first curved groove. The curved groove a11 and the curved groove a41 correspond to the first invalid density range and the second invalid density range respectively, and the curved groove a12 and the curved groove a42 correspond to the first density adjustable range and the second density adjustable range respectively; The distance between the curved groove a11 and the rotation center of the first cam gradually increases from the starting end to the end; The distance between the curved groove a12 and the rotation center of the first cam gradually increases from the starting end to the end; The distance between the curved groove a42 and the rotation center of the first cam gradually decreases from the starting end to the end; The distance between the curved groove a41 and the rotation center of the first cam gradually decreases from the starting end to the end end.

5. The braiding density control device according to claim 3, characterized in that: The first electric drive mechanism further includes a third cam connected to the output shaft of the first motor; The third cam has a third curved groove capable of enabling the third push rod to move between the first driving position, the second driving position and the first highest position; The third curved groove includes a curved groove c1, a curved groove c2 and a curved groove c3 connected in sequence, and the starting end of the curved groove c1 corresponds to the starting end of the third curved groove; The curved groove c1 corresponds to the first driving position, the curved groove c2 corresponds to the second driving range, and the curved groove c3 corresponds to the second driving range; The distance between the curved groove c1 and the rotation center of the third cam gradually remains constant from the starting end to the end; The distance between the curved groove c2 and the rotation center of the third cam gradually increases from the starting end to the end; The distance between the curved groove c3 and the rotation center of the third cam gradually increases from the starting end to the end.

6. The knitting density control device according to claim 1, wherein the left needle cam has a flush position or a full height position, The elastic triangle in the triangle device has a flush position and a half-height position, and the right density triangle has a state of covering the elastic triangle and a state of being away from the elastic triangle for elastic weaving; The invention also includes a second electric drive mechanism, wherein the output end of the second electric drive mechanism is connected to a second push rod, and the first push rod and the second push rod are arranged in parallel; The second push rod has a third driving range and a working position under the drive of the second electric drive mechanism; In the third driving range, the second push rod can make the right density cam rise to a position where it does not cover the elastic thread groove of the elastic cam, and make the left needle raising cam fall from the full height position to the flush position; In the working position, the second push rod is in a state where the elastic triangle participates in weaving, and at the same time the first push rod can adjust the position of the left density triangle to adjust the yarn weaving density.

7. The braiding density control device according to claim 6, characterized in that: The second push rod has a third driving position and an elastic braiding position, and the two positions are arranged from low to high; The third driving range is between the third driving position and the elastic band weaving position, and the elastic band weaving position is set as the working position; The second electric drive mechanism includes a second motor and a second cam connected thereto; The second cam is provided with a second curved groove capable of enabling the second push rod to move between the third driving position and the elastic braiding position.

8. The braiding density control device according to claim 7, characterized in that: The second curved groove includes a curved groove b1 and a curved groove b2 connected in sequence, and the starting end of the curved groove b1 corresponds to the starting end of the second curved groove; The curved groove b1 corresponds to the third driving range, and the curved groove b2 corresponds to the working position; The distance between the curved groove b1 and the rotation center of the second cam gradually increases from the starting end to the end; The distance between the curved groove b2 and the rotation center of the second cam from the starting end to the end remains unchanged.

9. A glove knitting machine comprising two needle beds spaced apart from each other, and two needle guide heads disposed on the needle beds and configured to perform reciprocating knitting motion along the knitting direction of the needle beds; It is characterized by: It also includes a knitting density control device according to any one of claims 1 to 8, wherein the knitting density control device is correspondingly arranged below the inner triangle device of the needle guide head along the knitting direction; The cam device includes a cam base plate, a cam assembly and a first pushing assembly, a second pushing assembly, a third pushing assembly and a fourth pushing assembly. The cam assembly includes a left density cam, a left needle cam, a knitting needle cam, a middle cam, a right needle cam, a right density cam, an elastic cam and an elastic guide cam arranged on the cam base plate. The right density cam has a state of shielding the elastic cam and a state of being away from the elastic cam for elastic weaving. One end of the first pushing assembly cooperates with the right density triangle to adjust its position, and the other end is rotatably provided with a first pushing foot and a second pushing foot; One end of the second pushing assembly cooperates with the left density triangle to adjust its position, and the other end is rotatably provided with a third pushing foot; One end of the third pushing assembly cooperates with the left-starting needle cam to switch it between the full height position and the flush position, and the other end is rotatably provided with a fourth pushing foot; One end of the fourth pushing assembly cooperates with the middle triangle to switch it between the full height position and the half height position, and the other end is rotatably provided with a fifth pushing foot; The first push rod abuts against the first push pin and the third push pin, the second push rod abuts against the second push pin and the fourth push pin, and the third push rod abuts against the fifth push pin.

10. The glove knitting machine according to claim 9, characterized in that: The elastic triangle includes a main body mounted on the triangle base plate and a triangle block and a guide needle block located on the front of the main body, and the triangle block and the guide needle block have a half-height position and a flush position, and can be switched from the half-height position to the flush position under the action of an external force; The side wall of the triangular block facing the elastic guide triangle is set as a first needle running side wall; The guide needle block is located near the end of the right density triangle, the guide needle block and the triangle block are spaced apart, and the guide needle block has a lowest point that limits the height of the elastic needle. The elastic guide triangular side wall, the first needle running side wall and the needle guide block form an elastic needle running groove; When the elastic triangle is not in use, the lower side wall of the right density triangle is located below the lowest point of the guide needle block.

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