Needle transfer mechanism of an intelligent flat knitting machine

Abstract

The present invention discloses a needle turning mechanism for an intelligent flat knitting machine, comprising a needle bed for the intelligent flat knitting machine, a substrate fixedly connected to one side of the needle bed, a needle turning cam adjustable on the upper part of the substrate, a plurality of needle grooves provided on the upper part of the needle bed, a hook needle slidably installed inside the needle groove; a main airway provided inside the substrate, a plurality of branch airways provided in a vertical direction of the main airway of the substrate, the plurality of branch airways respectively connected and connected with the main airway; a pneumatic rod slidably installed inside the branch airway, the hook needle fixedly installed at one end of the pneumatic rod away from the substrate. The air pressure of the branch airway is affected by the needle turning cam to perform pressurization or decompression operation, and the hook needle is affected by the negative pressure of the branch airway to perform retraction action. In the present invention, when the needle turning cam moves to drive the hook needle to move synchronously, the air pressure regulating device in the airway system will be triggered, so that the air pressure in the bronchial passage will change accordingly. When the hook needle completes the needle turning action, the hook needle is no longer constrained by the needle turning cam, and the air pressure in the bronchial passage sucks the pneumatic rod and the hook needle to retract quickly to the initial position.

Description

Technical Field

[0001] The invention belongs to the technical field of knitting, and in particular relates to a needle transfer mechanism of an intelligent flat knitting machine. Background Art

[0002] Intelligent flat knitting machine is a highly automated knitting equipment that can perform various complex knitting operations according to preset programs.

[0003] The needle transfer mechanism is an important component of the intelligent flat knitting machine. It is responsible for transferring the knitting needles from one needle bed to another during the knitting process to achieve continuous knitting of the fabric.

[0004] The patent with publication number CN103668751B discloses a needle transfer cam for a computerized flat knitting machine. The needle transfer cam for the computerized flat knitting machine comprises a body, the body is bilaterally symmetrical, the body comprises a top edge concave downward, two straight side edges and a bottom edge convex downward, the body is provided with a double M-shaped groove and two straight grooves, the double M-shaped groove is provided above the two straight grooves, a mounting groove is provided between the two straight grooves, the two ends of the double M-shaped groove are respectively connected to the two straight grooves, the outer ends of the straight grooves are respectively connected with oblique grooves, and the oblique grooves extend to the two straight side edges of the body respectively.

[0005] There are some problems with the above device: In traditional equipment, the resetting of the crochet hook usually depends on gravity. However, when the knitted fabric is made of a material with a certain elasticity, this material will generate tension and resilience during the knitting process, which will produce a continuous pulling effect on the crochet hook. This pulling will not only affect the normal resetting action of the crochet hook, but also cause it to be unable to return to the initial position accurately and quickly after the needle turning mechanism turns the needle, thereby causing mechanical failures inside the equipment, such as misalignment, jamming or increased wear. Therefore, we propose a needle turning mechanism for an intelligent flat knitting machine. Summary of the invention

[0006] In view of the defects or shortcomings in the prior art, the present invention provides a needle turning mechanism for an intelligent flat knitting machine; through the air pressure reset mechanism, the problem of inaccurate and unstable hook needle reset in traditional equipment is effectively solved, thereby improving the quality and production efficiency of knitted fabrics.

[0007] The present invention is implemented as follows: a needle transfer mechanism for an intelligent flat knitting machine comprises a needle bed for the intelligent flat knitting machine, a base plate is fixedly connected to one side of the needle bed, and a needle transfer cam is adjustably installed on the upper part of the base plate;

[0008] There are several needle slots on the upper part of the needle bed, and hooks are slidably installed inside the needle slots. The hooks are driven by the needle turning cam to eject and retract.

[0009] A main airway is provided inside the substrate, and a plurality of branch airways are provided in a vertical direction of the main airway of the substrate, and the plurality of branch airways are respectively connected and communicated with the main airway;

[0010] A pneumatic rod is slidably installed inside the bronchus, and the pneumatic rod and the bronchus are slidingly sealed. The hook needle is fixedly installed at the end of the pneumatic rod away from the base plate. The air pressure of the bronchus is affected by the needle turning cam to perform pressurization or decompression operations, and the hook needle is affected by the negative pressure of the bronchus to perform retraction.

[0011] As a preferred embodiment of the present invention, two first piston plates are slidably installed inside the main airway, and a pneumatic component is also provided inside the base plate. The pneumatic component includes a bidirectional screw rod, and the bidirectional screw rod is rotatably installed inside the base plate. A first piston plate is screwed to the outside of both sides of the bidirectional screw rod.

[0012] As a preferred embodiment of the present invention, the substrate is also provided with a transmission air channel, and the transmission air channel is connected and communicated with the center position of the main air channel.

[0013] As a preferred embodiment of the present invention, the two first piston plates cooperate with the main air channel to form a variable air cavity, a second motor is fixedly mounted on one side of the base plate, and an output end of the second motor is fixedly connected to a bidirectional screw rod.

[0014] As a preferred embodiment of the present invention, an electric push rod and an air plate are fixedly installed at the rear of the substrate, a second piston plate is slidably installed inside the air plate, the output end of the electric push rod passes through the air plate and is fixedly connected to the second piston plate, a hose is fixedly connected to one side of the air plate, and the end of the hose away from the air plate is fixedly connected to the transmission channel of the substrate.

[0015] As a preferred embodiment of the present invention, a slide groove is provided on the upper part of the base plate, and a plurality of sliders are fixedly connected to the lower part of the needle turning cam. The sliders are slidably installed in the slide groove, and auxiliary wheels are rotatably installed on both sides of the sliders. The auxiliary wheels contact the inner wall of the slide groove. A first motor is also fixedly installed on one side of the base plate, and a small rotating wheel is fixedly connected to the output end of the first motor. The small rotating wheel is connected to a large rotating wheel through a transmission belt, and the large rotating wheel is rotatably installed on one side of the base plate. A one-way screw is rotatably installed in the slide groove of the base plate, and one end of the one-way screw is fixedly connected to the large rotating wheel, and the outside of the one-way screw is screwed to the slider.

[0016] As a preferred embodiment of the present invention, a guide drive channel for turning the needle is provided inside the needle turning cam, the guide drive channel is composed of two symmetrically arranged channels connected, and guide chamfers are provided on both sides of the guide drive channel of the needle turning cam.

[0017] As a preferred embodiment of the present invention, rotating rods are rotatably mounted on both sides of the needle turning cam through torsion springs, one end of the rotating rod is fixedly connected to a baffle, and the baffle movably blocks the guide drive channel.

[0018] As a preferred embodiment of the present invention, the crochet needle includes a needle body, a guide protrusion is integrally formed at the rear of the needle body, the shape of the guide protrusion is consistent with the cross-sectional shape of the guide drive channel, the guide protrusion is slidably connected to the guide drive channel, a baffle rod is rotatably installed at the front of the needle body, a splint is fixedly connected to one end of the pneumatic rod, a gradient clamping groove is provided on the side of the splint away from the pneumatic rod, and the needle body is clamped and inserted inside the gradient clamping groove of the splint.

[0019] As a preferred embodiment of the present invention, a limiting hole is provided on the guide protrusion of the needle body, and the other end of the pneumatic rod is fixedly connected to a third piston plate, which is slidably installed inside the bronchial passage, and a screw is threadedly connected to one side of the splint, and the screw is movably inserted into the limiting hole of the needle body.

[0020] The present invention connects the main airway inside the base plate with several bronchial airways to form an efficient air pressure transmission network. When the needle turning cam moves to drive the hook needle to move synchronously, it triggers the air pressure regulating device in the airway system, causing the air pressure in the bronchial airway to change accordingly. When the hook needle completes the needle turning action, the hook needle is no longer constrained by the needle turning cam, and the air pressure in the bronchial airway sucks the pneumatic rod and the hook needle to quickly retract to the initial position, thereby achieving accurate resetting of the hook needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0022] Figure 2 The embodiment of the present invention provides Figure 1 Schematic diagram of the structure at A in the middle;

[0023] Figure 3 The embodiment of the present invention provides Figure 1 Schematic diagram of the structure at B in the middle;

[0024] Figure 4 is a schematic diagram of the substrate structure provided by an embodiment of the present invention;

[0025] Figure 5 The embodiment of the present invention provides Figure 4 Schematic diagram of the structure at C in the middle;

[0026] Figure 6 The embodiment of the present invention provides Figure 4 Schematic diagram of the structure at D in the middle;

[0027] Figure 7 is a schematic structural diagram of a substrate from another perspective provided by an embodiment of the present invention;

[0028] Figure 8 The embodiment of the present invention provides Figure 7 Schematic diagram of the structure at E in the middle;

[0029] Fig. 9is a schematic diagram of the gas plate structure provided by an embodiment of the present invention;

[0030] Fig.10 The embodiment of the present invention provides Fig. 9 Schematic diagram of the structure at F in the middle;

[0031] Fig.11 is a schematic diagram of the needle turning cam structure provided by an embodiment of the present invention;

[0032] Fig.12 The embodiment of the present invention provides Fig.11 Schematic diagram of the structure at G in the middle;

[0033] Fig.13 is a schematic diagram of the structure of a slider provided by an embodiment of the present invention;

[0034] Fig.14 is a schematic diagram of a baffle structure provided by an embodiment of the present invention;

[0035] Fig.15 is a schematic diagram of the crochet structure provided by an embodiment of the present invention;

[0036] Fig.16 is a schematic diagram of the structure of another state of the crochet hook provided by an embodiment of the present invention;

[0037] Fig.17 It is a schematic diagram of the hook explosion structure provided by an embodiment of the present invention;

[0038] Fig.18 is a schematic diagram of a crochet hook structure provided by another embodiment of the present invention;

[0039] Fig.19 is a schematic diagram of the structure of a pneumatic rod provided by an embodiment of the present invention;

[0040] Fig. 20 The embodiment of the present invention provides Fig.19 Schematic diagram of the structure at H in the middle.

[0041] In the figure: 1. needle bed; 2. hook needle; 3. base plate; 4. needle turning cam; 5. pneumatic assembly; 6. pneumatic rod;

[0042] 101, needle groove;

[0043] 201, needle body; 202, guide protrusion; 203, stop rod; 204, limit hole;

[0044] 301, slideway; 302, first motor; 303, small rotating wheel; 304, transmission belt; 305, large rotating wheel; 306, main airway; 307, branch airway; 308, transmission airway; 309, one-way screw;

[0045] 401, slider; 402, guide drive channel; 403, baffle; 404, rotating rod; 405, torsion spring; 406, auxiliary wheel;

[0046] 501, second motor; 502, bidirectional screw rod; 503, first piston plate; 504, electric push rod; 505, air plate; 506, air cavity; 507, second piston plate; 508, hose;

[0047] 601, third piston plate; 602, clamping plate; 603, gradual clamping groove; 604, screw. DETAILED DESCRIPTION

[0048] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0049] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0050] like Figures 1 to 20 As shown, an embodiment of the present invention provides a needle turning mechanism for an intelligent flat knitting machine, comprising a needle bed 1 for the intelligent flat knitting machine, a base plate 3 is fixedly connected to one side of the needle bed 1, a needle turning cam 4 is adjustably installed on the upper part of the base plate 3, a plurality of needle grooves 101 are provided on the upper part of the needle bed 1, a hook needle 2 is slidably installed inside the needle groove 101, and the hook needle 2 is driven by the needle turning cam 4 to perform ejection and retraction actions; a main airway 306 is provided inside the base plate 3, and a plurality of branch airways 307 are provided in a vertical direction of the main airway 306 of the base plate 3, and the plurality of branch airways 307 are respectively connected and communicated with the main airway 306; a pneumatic rod 6 is slidably installed inside the branch airway 307, and the pneumatic rod 6 and the branch airway 307 are slidingly sealed, the hook needle 2 is fixedly installed at the end of the pneumatic rod 6 away from the base plate 3, the air pressure of the branch airway 307 is affected by the needle turning cam 4 to perform pressurization or decompression operations, and the hook needle 2 is affected by the negative pressure of the branch airway 307 to perform retraction actions.

[0051] The needle transfer mechanism of the above-mentioned intelligent flat knitting machine is to solve the problem of resetting the hook 2 in the traditional device:

[0052] The needle bed 1 is the basis of the whole mechanism, and a number of needle grooves 101 are precisely opened on its surface, which provide a stable working track for the hook needle 2. One side of the needle bed 1 is firmly connected to the base plate 3, which provides an installation position for the needle transfer cam 4 and also has a built-in precise airway system.

[0053] The needle turning cam 4 is installed on the upper part of the base plate 3. The movement trajectory of the needle turning cam 4 cooperates with the movement trajectory of the hook needle 2, ensuring that the hook needle 2 can accurately perform the ejection action under the drive of the cam. The pneumatic rod 6 is a key component connecting the hook needle 2 and the airway system. The pneumatic rod 6 is installed inside the bronchial 307 and is set to slide and seal with the bronchial 307 to ensure the efficiency and stability of air pressure transmission. The hook needle 2 is fixedly installed at one end of the pneumatic rod 6 away from the base plate 3, and the ejection and retraction of the hook needle 2 are realized by the telescopic movement of the pneumatic rod 6.

[0054] Airway system and air pressure control: The main airway 306 inside the base plate 3 is connected to several branch airways 307, forming an efficient air pressure transmission network. When the needle turning cam 4 moves to drive the hook needle 2 to move synchronously, the air pressure regulating device in the airway system will be triggered, causing the air pressure in the branch airway 307 to change accordingly. When the hook needle 2 completes the needle turning action, the hook needle 2 is no longer constrained by the needle turning cam 4, and the air pressure in the branch airway 307 sucks the pneumatic rod 6 and the hook needle 2 to quickly retract to the initial position, thereby achieving the precise resetting of the hook needle 2.

[0055] In this embodiment, two first piston plates 503 are slidably installed inside the main airway 306, and a pneumatic assembly 5 is also provided inside the base plate 3. The pneumatic assembly 5 includes a bidirectional screw 502. The bidirectional screw 502 is rotatably installed inside the base plate 3, and a first piston plate 503 is screwed to the outside of the two sides of the bidirectional screw 502. The base plate 3 is also provided with a transmission airway 308, which is connected and connected to the center of the main airway 306. The two first piston plates 503 cooperate with the main airway 306 to form a variable air cavity 506. A second motor 501 is fixedly installed on one side of the base plate 3, and the output end of the second motor 501 is fixedly connected to the bidirectional screw 502. An electric push rod 504 and an air plate 505 are fixedly installed at the rear of the substrate 3, a second piston plate 507 is slidably installed inside the air plate 505, the output end of the electric push rod 504 passes through the air plate 505 and is fixedly connected to the second piston plate 507, a hose 508 is fixedly connected to one side of the air plate 505, and the end of the hose 508 away from the air plate 505 is fixedly connected to the transmission channel of the substrate 3.

[0056] Pneumatic assembly 5 with smart hook 2 pre-selected operation:

[0057] The pneumatic assembly 5 provides precise pneumatic support for the hook 2, thereby realizing the intelligent pre-selection operation of the hook 2. Two first piston plates 503 are slidably installed in the main air channel 306 of the base plate 3. The two first piston plates 503 can move freely in the air channel, and closely cooperate with the bidirectional screw rod 502 inside the base plate 3, forming the main structure of the pneumatic assembly 5.

[0058] The bidirectional screw 502 serves as the driving force source of the pneumatic assembly 5, and its two sides are respectively connected to the two first piston plates 503 by threads. When the bidirectional screw 502 rotates inside the base plate 3, the two first piston plates 503 will move toward or away from each other according to the rotation direction of the screw, thereby changing the distance between the two first piston plates 503. This design allows the space in the main airway 306 to be flexibly adjusted to form a variable air cavity 506. In order to achieve precise control of the air pressure in the variable air cavity 506, a second motor 501 is fixedly installed on one side of the base plate 3. The output end of the second motor 501 is directly connected to the bidirectional screw 502. Through the rotation of the motor, the rotation angle and speed of the bidirectional screw 502 can be accurately controlled, and then the distance between the two first piston plates 503 can be controlled to achieve fine adjustment of the size of the variable air cavity 506.

[0059] At the same time, an electric push rod 504 and an air plate 505 are fixedly installed at the rear of the substrate 3. A second piston plate 507 is slidably installed inside the air plate 505, and the output end of the electric push rod 504 passes through the air plate 505 and is fixedly connected to the second piston plate 507. When the electric push rod 504 is working, the second piston plate 507 can be pushed to move horizontally inside the air plate 505, thereby changing the air pressure inside the air plate 505. In order to transfer the air pressure inside the air plate 505 to the variable air cavity 506, a hose 508 is connected to one side of the air plate 505. One end of this hose 508 is tightly connected to the air plate 505, and the other end is fixedly connected to the transmission channel of the substrate 3. When the electric push rod 504 drives the second piston plate 507 to move horizontally, the air pressure inside the air plate 505 will be quickly transferred to the variable air cavity 506 through the hose 508, thereby realizing the rapid adjustment of the air pressure in the variable air cavity 506.

[0060] When in use, firstly, the distance between the two first piston plates 503 is controlled by the second motor 501 to adjust the size of the variable air cavity 506. Then, according to the process requirements, the second piston plate 507 is driven to move horizontally by the electric push rod 504 to change the air pressure in the variable air cavity 506. When the air pressure reaches the preset value, the air pressure in the variable air cavity 506 will act on the crochet hook 2, causing it to be pushed out of the needle groove 101 for a distance. At this time, the needle turning cam 4 will be aligned with the ejected crochet hook 2 to complete the pre-selection operation of the intelligent crochet hook 2. The design of this pneumatic component 5 not only improves the accuracy and stability of the pre-selection operation of the crochet hook 2, but also enables the entire needle turning mechanism to adapt to the weaving requirements of different materials and processes, thereby improving the quality and production efficiency of knitted fabrics.

[0061] In this embodiment, a slide groove 301 is opened on the upper part of the base plate 3, and a plurality of sliders 401 are fixedly connected to the lower part of the needle turning cam 4. The sliders 401 are slidably installed inside the slide groove 301. Auxiliary wheels 406 are rotatably installed on both sides of the sliders 401. The auxiliary wheels 406 contact the inner wall of the slide groove 301. A first motor 302 is also fixedly installed on one side of the base plate 3. A small rotating wheel 303 is fixedly connected to the output end of the first motor 302. The small rotating wheel 303 is connected to a large rotating wheel 305 through a transmission belt 304. The large rotating wheel 305 is rotatably installed on one side of the base plate 3. A one-way screw rod 309 is rotatably installed inside the slide groove 301 of the base plate 3. One end of the one-way screw rod 309 is fixedly connected to the large rotating wheel 305. The one-way screw rod 309 is externally screwed to the slider 401.

[0062] Reciprocating lateral movement drive system of needle transfer cam 4:

[0063] In the needle turning mechanism of the intelligent flat knitting machine, a slide groove 301 is designed on the upper part of the base plate 3. This slide groove 301 provides precise guidance for the reciprocating transverse movement of the needle turning cam 4, and also ensures the stability and smoothness of the cam during movement. A number of sliders 401 are fixedly connected to the lower part of the needle turning cam 4. These sliders 401 are tightly slidably installed inside the slide groove 301, forming a stable connection between the cam and the base plate 3. In order to further improve the sliding efficiency of the slider 401, auxiliary wheels 406 are specially rotatably installed on both sides of the slider 401. These auxiliary wheels 406 are in close contact with the inner wall of the slide groove 301. When the slider 401 moves, it can reduce the friction with the inner wall of the slide groove 301, making the movement of the slider 401 smoother.

[0064] On one side of the substrate 3, a first motor 302 is fixedly installed, which is the power source of the entire reciprocating traverse drive system. The output end of the first motor 302 is closely connected with a small rotating wheel 303, and the small rotating wheel 303 is connected to the large rotating wheel 305 through a transmission belt 304. The large rotating wheel 305 is rotatably installed on one side of the substrate 3, and the rotation of the large rotating wheel 305 can drive the rotation of the one-way screw rod 309. One end of the one-way screw rod 309 is fixedly connected with the large rotating wheel 305, ensuring the synchronous movement between the two. The one-way screw rod 309 is the core component of the reciprocating traverse drive system, and the one-way screw rod 309 is externally screwed with a slider 401. When the first motor 302 is started, the one-way screw rod 309 drives the small rotating wheel 303 to rotate, and then drives the large rotating wheel 305 and the one-way screw rod 309 to rotate through the transmission belt 304. The rotation of the one-way screw rod 309 causes the slider 401 to move back and forth inside the slide slot 301, thereby driving the needle turning cam 4 to move accordingly.

[0065] This reciprocating lateral movement drive system ensures the precise position and stable movement of the needle transfer cam 4 during the knitting process, providing a reliable guarantee for the production of knitted fabrics.

[0066] In this embodiment, a guide driving channel 402 for turning needles is provided inside the needle turning cam 4, and the guide driving channel 402 is composed of two symmetrically arranged channels connected, and guide chamfers are provided on both sides of the guide driving channel 402 of the needle turning cam 4. A rotating rod 404 is rotatably installed on both sides of the needle turning cam 4 through a torsion spring 405, and a baffle 403 is fixedly connected to one end of the rotating rod 404, and the baffle 403 movably blocks the guide driving channel 402. The crochet needle 2 includes a needle body 201, and a guide protrusion 202 is integrally formed at the rear of the needle body 201. The shape of the guide protrusion 202 is consistent with the cross-sectional shape of the guide drive channel 402. The guide protrusion 202 is slidably connected to the guide drive channel 402. A blocking rod 203 is rotatably installed at the front of the needle body 201, and a splint 602 is fixedly connected to one end of the pneumatic rod 6. A gradient clamping groove 603 is provided on the side of the splint 602 away from the pneumatic rod 6, and the needle body 201 is clamped and inserted inside the gradient clamping groove 603 of the splint 602.

[0067] The guiding and driving mechanism of the needle turning cam 4:

[0068] A unique guide drive channel 402 is designed inside the needle turning cam 4. The channel is formed by connecting two symmetrically arranged channels to ensure the accuracy and stability of the needle turning action. Guide chamfers are specially designed on both sides of the channel. When the air pressure changes, part of the hook 2 is pushed out, and part of the hook 2 is retracted under the influence of the air pressure. The hook 2 can be accurately pulled into the guide drive channel 402 through the chamfer.

[0069] The turning cam 4 is rotatably mounted on a rotating rod 404 through a torsion spring 405. One end of the turning rod 404 is fixedly connected to a baffle 403, which can flexibly move on both sides of the guide drive channel 402. In order to assist the two symmetrically arranged channels to better complete the turning action. When the guide protrusion 202 of the needle body 201 enters from the channel on one side, it will first be guided by the baffle 403 on this side, so that the needle body 201 moves up to prepare for the next stage of the turning action. When the needle body 201 moves to the position of the baffle 403 on the other side, the baffle 403 on this side will be pushed open, so that the needle body 201 can continue to move smoothly and finally complete the turning action.

[0070] The crochet needle 2 includes a needle body 201, and a guide protrusion 202 is integrally formed at the rear of the needle body 201. The shape of the guide protrusion 202 matches the cross-sectional shape of the guide drive channel 402, ensuring the stable sliding of the needle body 201 in the channel. A stopper 203 is rotatably installed at the front of the needle body 201, which is used to close or open the curved part of the needle body 201 during knitting.

[0071] The pneumatic rod 6 is used as the power source for the needle turning action, and one end of the pneumatic rod 6 is fixedly connected to the clamping plate 602. A gradual clamping groove 603 is designed on the side of the clamping plate 602 away from the pneumatic rod 6. The shape of this groove matches the needle body 201, which can firmly clamp the needle body 201 to ensure the stability and accuracy of the needle body 201 during the needle turning process.

[0072] During the reciprocating transverse movement of the needle turning cam 4, the guide protrusion 202 of the needle body 201 and the guide drive channel 402 are closely matched to realize the precise needle turning action of the needle body 201. When the needle turning cam 4 moves to one side, the guide protrusion 202 of the needle body 201 is guided by the side baffle 403, so that the needle body 201 moves up and then moves down to reset; when the needle turning cam 4 moves to the other side, the baffle 403 on the other side is pushed open, and the needle body 201 can move smoothly and complete the needle turning reset. This design not only improves the efficiency of needle turning, but also ensures the stability and reliability of the needle turning process.

[0073] In another embodiment, a limiting hole 204 is opened on the guide protrusion 202 of the needle body 201, and the other end of the pneumatic rod 6 is fixedly connected to a third piston plate 601, and the third piston plate 601 is slidably installed inside the bronchial 307. A screw 604 is threadedly connected to one side of the clamping plate 602, and the screw 604 is movably inserted into the limiting hole 204 of the needle body 201.

[0074] The guide protrusion 202 of the needle body 201 is improved, and a limiting hole 204 is opened on it. A screw rod 604 is cleverly screwed on one side of the clamping plate 602. It can be movably inserted into the limiting hole 204 of the needle body 201. When the screw rod 604 is inserted into the limiting hole 204, a stable and reliable mechanical structure is formed.

[0075] The other end of the pneumatic rod 6 is fixedly connected to a third piston plate 601. The third piston plate 601 can slide freely inside the bronchial passage 307, serving as a bridge between the pneumatic rod 6 and the bronchial passage 307, thereby ensuring stable transmission of pneumatic force.

[0076] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A needle transfer mechanism for an intelligent flat knitting machine, comprising a needle bed (1) for the intelligent flat knitting machine, a base plate (3) being fixedly connected to one side of the needle bed (1), a needle transfer cam (4) being adjustably mounted on the upper part of the base plate (3), Features: A plurality of needle grooves (101) are provided on the upper part of the needle bed (1), and hook needles (2) are slidably mounted inside the needle grooves (101). The hook needles (2) are driven by the needle turning cam (4) to perform ejection and retraction actions; A main airway (306) is provided inside the substrate (3), and a plurality of branch airways (307) are provided in a vertical direction of the main airway (306) of the substrate (3), and the plurality of branch airways (307) are respectively connected to and communicated with the main airway (306); A pneumatic rod (6) is slidably mounted inside the bronchial passage (307), the pneumatic rod (6) and the bronchial passage (307) being slidably sealed, the hook needle (2) being fixedly mounted on one end of the pneumatic rod (6) away from the base plate (3), the air pressure of the bronchial passage (307) being pressurized or depressurized under the influence of the needle turning cam (4), and the hook needle (2) being retracted under the influence of the negative air pressure of the bronchial passage (307); Two first piston plates (503) are slidably mounted inside the main air passage (306); a pneumatic assembly (5) is also arranged inside the base plate (3); the pneumatic assembly (5) comprises a bidirectional screw rod (502); the bidirectional screw rod (502) is rotatably mounted inside the base plate (3); and one of the first piston plates (503) is screwed to the outside of both sides of the bidirectional screw rod (502); The substrate (3) is further provided with a transmission air channel (308), and the transmission air channel (308) is connected and communicated with the center position of the main air channel (306); The two first piston plates (503) cooperate with the main air channel (306) to form a variable air cavity (506); a second motor (501) is fixedly mounted on one side of the base plate (3); and an output end of the second motor (501) is fixedly connected to the bidirectional lead screw (502); An electric push rod (504) and an air plate (505) are fixedly mounted on the rear of the base plate (3); a second piston plate (507) is slidably mounted inside the air plate (505); an output end of the electric push rod (504) passes through the air plate (505) and is fixedly connected to the second piston plate (507); a hose (508) is fixedly connected to one side of the air plate (505); and an end of the hose (508) away from the air plate (505) is fixedly connected to the transmission channel of the base plate (3); A slide groove (301) is provided on the upper part of the base plate (3), and a plurality of sliders (401) are fixedly connected to the lower part of the needle turning cam (4). The sliders (401) are slidably mounted inside the slide groove (301), and auxiliary wheels (406) are rotatably mounted on both sides of the slider (401). The auxiliary wheels (406) are in contact with the inner wall of the slide groove (301). A first motor (302) is also fixedly mounted on one side of the base plate (3), and the output of the first motor (302) is A small rotating wheel (303) is fixedly connected to one end of the base plate (3), the small rotating wheel (303) is transmission-connected to a large rotating wheel (305) via a transmission belt (304), the large rotating wheel (305) is rotatably mounted on one side of the base plate (3), a one-way screw rod (309) is rotatably mounted inside the slide groove (301) of the base plate (3), one end of the one-way screw rod (309) is fixedly connected to the large rotating wheel (305), and the outside of the one-way screw rod (309) is screwed to the slider (401).

2. The needle transfer mechanism of the intelligent flat knitting machine according to claim 1, Features: A guide drive channel (402) for turning the needle is provided inside the needle turning cam (4), the guide drive channel (402) being composed of two symmetrically arranged channels connected together, and guide chamfers are provided on both sides of the guide drive channel (402) of the needle turning cam (4).

3. The needle transfer mechanism of the intelligent flat knitting machine as claimed in claim 2, Features: Rotating rods (404) are rotatably mounted on both sides of the needle turning cam (4) via torsion springs (405); one end of the rotating rod (404) is fixedly connected to a baffle (403); and the baffle (403) movably blocks the guide drive channel (402).

4. The needle transfer mechanism of the intelligent flat knitting machine as claimed in claim 3, Features: The crochet needle (2) comprises a needle body (201), a guide protrusion (202) is integrally formed at the rear of the needle body (201), the shape of the guide protrusion (202) matches the cross-sectional shape of the guide drive channel (402), the guide protrusion (202) is slidably connected to the guide drive channel (402), a blocking rod (203) is rotatably mounted at the front of the needle body (201), a clamping plate (602) is fixedly connected to one end of the pneumatic rod (6), a gradient clamping groove (603) is provided on a side of the clamping plate (602) away from the pneumatic rod (6), and the needle body (201) is clamped and plugged inside the gradient clamping groove (603) of the clamping plate (602).

5. The needle transfer mechanism of the intelligent flat knitting machine as claimed in claim 4, Features: A limiting hole (204) is provided on the guide protrusion (202) of the needle body (201); the other end of the pneumatic rod (6) is fixedly connected to a third piston plate (601); the third piston plate (601) is slidably installed inside the bronchial passage (307); a screw rod (604) is threadedly connected to one side of the clamping plate (602); the screw rod (604) is movably plugged into the limiting hole (204) of the needle body (201).

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