Knitting needle preparation long-stroke profiling groove milling device

Abstract

The invention discloses a knitting needle preparation long-stroke profiling groove milling device, and relates to the field of groove milling devices.The knitting needle preparation long-stroke profiling groove milling device comprises a rack, a conveying belt used for conveying knitting needles is arranged on the rack, a chain plate used for clamping and positioning the knitting needles is installed on the outer circle of the conveying belt in the circumferential direction, and a groove milling piece is installed at the upper end of the rack; the transfer cylinder and the carrying roller are arranged at one end of the rack, the transfer cylinder is matched with the carrying roller to place the knitting needles on the chain plate one by one, automatic feeding of the knitting needles is completed, and manual feeding is not needed in the feeding process. The knitting needle has the effect of improving the processing convenience of the knitting needle.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of slot milling devices, in particular to a long-stroke profile slot milling device for knitting needle preparation. BACKGROUND

[0002] Knitting needles are important components in the field of textiles, mainly installed on knitting machines, used to knit yarn into loops, and make loops interlock into knitted fabrics, so the shape and structure of the knitting needle will directly affect the production efficiency and product quality of the knitted fabric. In order to facilitate threading, a needle hole or needle groove structure needs to be milled at one end of the knitting needle.

[0003] The related technology can refer to the Chinese patent with publication number CN116079450A, which discloses a continuous clamping knitting needle production and processing slot milling device, which comprises a processing base and an L-shaped fixed plate fixedly installed on one side of the upper end of the processing base. A telescopic drive is installed on the bottom surface of the upper end of the L-shaped fixed plate, the output end of the telescopic drive is fixedly installed with a connecting plate, and a plurality of milling cutters are uniformly fixedly installed on the bottom surface of the connecting plate. A threaded drive column is installed on the upper end of the processing base, a concave bottom plate is slidably installed on the top surface of the processing base, and an inclined placement plate is arranged at the middle part of the concave bottom plate.

[0004] For the related technology in the above, during the slot milling process of the knitting needle, after completing the processing of each batch of knitting needles, the operator needs to place the knitting needle raw material above the inclined placement plate again. Manual assistance is still required during the production process, and the operator also needs to remove the knitting needle from the concave plate after completing the processing. The actual processing process is still relatively cumbersome, so a more convenient slot milling device is urgently needed. SUMMARY

[0005] In order to improve the processing convenience of the knitting needle, the present application provides a long-stroke profile slot milling device for knitting needle preparation.

[0006] The present application provides a long-stroke profile slot milling device for knitting needle preparation, which adopts the following technical scheme: A long-stroke profile slot milling device for knitting needle preparation, comprising a rack, the rack is provided with a conveying belt for conveying knitting needles along the length direction, and the rack is provided with a slot milling piece for processing the knitting needles, further comprising: a transfer cylinder fixedly arranged at the upper end of the rack, and the lower end of the transfer cylinder is provided with a discharge port; the conveying belt is uniformly provided with a plurality of chain plates in the circumferential direction, and the chain plate is provided with a supporting groove for placing the knitting needle; the lower end of the transfer cylinder is provided with a discharge port matched with the knitting needle; when any chain plate is located directly below the transfer cylinder, the supporting groove is opposite to the discharge port. A storage box is fixedly arranged at the upper end of the transfer cylinder and used for batch placing the knitting needles, and the upper end of the transfer cylinder is provided with a feeding port communicating with the storage box; The carrying roller is located in the inside of the transfer cylinder, the transfer cylinder is internally provided with a circular cavity communicating with the feeding port and the discharging port, the carrying roller is located in the circular cavity and is connected with the transfer cylinder in the vertical direction, the frame is fixedly provided with a carrying motor for driving the carrying roller to rotate, the outer circle of the carrying roller is attached to the inner wall of the circular cavity, the guiding block is fixedly connected in the feeding port, the upper end surface of the guiding block is provided as a guiding surface, the guiding surface is inclined from top to bottom in the horizontal direction and is tangent to the outer circle of the carrying roller, a plurality of carrying grooves are formed in the outer circle of the carrying roller in the axial direction, and the maximum end surface of the knitting needle is opposite to the axis of the carrying roller when the knitting needle is located in the carrying groove.

[0007] By adopting the above technical scheme, the knitting needle is placed in the storage box, and the end of all the knitting needles is located on the same side. Under the action of gravity, the knitting needle passes through the feeding port and moves towards the guiding block. The guiding block guides the knitting needle to move towards the side of the carrying roller through the guiding surface. The knitting needle is in an inclined state when moving, so that the maximum end surface of the knitting needle is attached to the guiding surface. When the carrying motor drives the carrying roller to rotate, the knitting needle will directly fall into any carrying groove on the carrying roller along the guiding surface. The depth of the carrying groove limits the width of the knitting needle, so that the maximum end surface of the knitting needle is opposite to the axis of the carrying roller when the knitting needle is located in the carrying groove. The carrying roller drives the knitting needle to move towards the discharging port when rotating. When the knitting needle moves to the lower end of the transfer cylinder, the knitting needle is discharged from the discharging port under the action of gravity and falls into the corresponding groove. The chain plate limits the knitting needle through the groove. The transfer cylinder forms a transport chamber through the cooperation of the circular cavity and the carrying groove. There is only a single knitting needle in each transport chamber. When the conveying belt rotates, the knitting needle is driven by the chain plate to move towards the milling groove piece, and the knitting needle is milled by the milling groove piece. After the milling is completed, the conveying belt continues to drive the knitting needle to move. When the knitting needle moves below the conveying belt, it is separated from the chain plate, thereby completing the discharging of the knitting needle. In the processing process, the carrying roller realizes the automatic feeding of the knitting needle. During the feeding process, the operator only needs to add raw materials to the storage box, without manual feeding and discharging, thereby improving the processing automation degree of the knitting needle and facilitating the processing convenience of the knitting needle.

[0008] Optionally, the transfer cylinder is slidingly connected with a pushing block in the diameter direction of the carrying roller. When the carrying roller rotates, the lower end surface of the pushing block is provided with an inclined surface one, the inclined direction of the inclined surface one is the same as that of the guiding surface, the gap between the lower end of the guiding surface and the inclined surface one is provided as a limiting port, and the elastic element one is arranged between the pushing block and the transfer cylinder. The elastic element one applies a pushing force to the pushing block to approach the axis of the carrying roller. In the natural state of the elastic element one, the width of the limiting port is smaller than the width of the knitting needle and greater than the thickness of the knitting needle.

[0009] By adopting the above technical scheme, in the natural state of the elastic member, the push block is limited to the knitting needle through the cooperation of the inclined surface one and the guide surface, when the maximum end surface of the knitting needle is perpendicular to the guide surface, the push block limits the knitting needle to pass through the limiting opening, when the maximum end surface of the knitting needle is close to the guide surface, the knitting needle directly passes through the limiting opening and moves towards the carrying roller, the knitting needle passing through the limiting opening is in an inclined state, so that when the knitting needle contacts the carrying roller, the maximum end surface of the knitting needle is opposite to the axis of the carrying roller, thereby reducing the probability of the knitting needle being stuck between the transfer cylinder and the carrying roller.

[0010] Optionally, the push block is further provided with an inclined surface two at the lower end, the inclined surface two is located on the side away from the feeding opening of the inclined surface one, and the inclined surface two is opposite to the inclined surface one in the inclined direction, in the natural state of the elastic member, the intersection line of the inclined surface one and the inclined surface two is close to the outer circle of the carrying roller, the outer circle of the carrying roller is coaxially fixed with a plurality of arc-shaped blocks, one side of the push block is fixedly connected with a contact rod corresponding to the arc-shaped blocks, and in the natural state of the elastic member, the contact rod is located between any two arc-shaped blocks.

[0011] By adopting the above technical scheme, when the carrying roller rotates, the arc-shaped blocks are driven to approach the contact rod one by one, the arc-shaped blocks contact the contact rod to drive the contact rod to move, so that the contact rod drives the push block to move away from the axis of the carrying roller, at this time the elastic member is compressed, and when the arc-shaped blocks are separated from the contact rod, the push block is reset under the action of the elastic member. The push block moves to cause the knitting needle to shake, thereby reducing the probability of the knitting needle being stuck at the feeding opening. If the knitting needle is still outside the carrying groove along any side in the width direction, when the carrying roller rotates, the knitting needle contacts the inclined surface one, and when the knitting needle passes through the highest end of the carrying roller, the knitting needle is in an inclined state, when the inclined direction of the knitting needle is opposite to the inclined surface one, the push block directly blocks the movement of the knitting needle and pushes the knitting needle into the carrying groove. When the inclined direction of the knitting needle is the same as the inclined surface one, the knitting needle is stuck by the side of the carrying groove, and when the carrying roller rotates, the push block is driven to move by the knitting needle, when the knitting needle is opposite to the inclined surface two, the push block is reset and pushes the knitting needle into the carrying groove through the inclined surface two, further reducing the probability of the knitting needle being stuck between the carrying roller and the transfer cylinder.

[0012] Optionally, the carrying groove is provided with a supporting plate, the supporting plate is rotationally connected with the carrying roller in the direction close to or away from the axis of the carrying roller, both ends of the supporting plate are hingedly connected with swing rods, the carrying roller is provided with an avoiding groove, the swing rods pass through the avoiding groove and approach the axis of the carrying roller, both ends of the carrying roller in the axis direction are provided with connecting discs, the connecting discs are slidingly connected with the carrying roller in the axis direction of the carrying roller, the two swing rods on the same supporting plate are hingedly connected with the two connecting discs respectively, the carrying roller is coaxially rotationally connected with a bidirectional screw rod, and the two connecting discs are located at both ends of the bidirectional screw rod and are threadedly connected with the bidirectional screw rod.

[0013] By adopting the above technical scheme, when the supporting plate is adjusted, the two connecting plates are driven to move close to or away from each other by the bidirectional screw rod, the connecting plate drives the swing rod to rotate in the avoiding groove when the connecting plate moves, the swing rod drives the supporting plate to move along the diameter direction of the conveying roller, the supporting plate is used for limiting the depth of the conveying groove, and the supporting plate is suitable for knitting needles with different thicknesses, so that the application range of the conveying roller is improved.

[0014] Optionally, the discharge port is vertically arranged, and a push plate is slidably connected in the vertical direction in the discharge port, and a second elastic element is arranged between the push plate and the transfer cylinder, the second elastic element applies a downward pushing force to the push plate, the lower end of the transfer cylinder is provided with a buffer cavity, the buffer cavity is located on the side of the discharge port close to the push block, a moving groove is in communication between the buffer cavity and the discharge port, the lower side wall of the moving groove is flush with the lower side wall of the buffer cavity, the transfer cylinder is also provided with a guide groove in communication with the circular cavity and the buffer cavity, the guide groove is arranged in an inclined manner from top to bottom and in the direction of the buffer cavity pointing to the discharge port, for guiding the knitting needle moving to the lower end of the transfer cylinder into the buffer cavity, and the transfer cylinder is provided with a transfer plate for pushing the knitting needle in the buffer cavity towards the discharge port.

[0015] By adopting the above technical scheme, when the knitting needle moves to the lower end of the transfer cylinder and is close to the inner wall of the transfer cylinder under the action of gravity, the conveying roller continues to drive the knitting needle to move along the inner wall of the circular cavity, and the knitting needle moves along the guide groove to the buffer cavity after moving into the guide groove. The guide groove is used for limiting the overturning of the knitting needle, so that the knitting needle is in a horizontal state after entering the buffer cavity, and the buffer cavity buffers the knitting needle, and when the transfer plate pushes the knitting needle to pass through the moving groove and enter below the push plate, the push plate applies a pushing force to the knitting needle under the action of the second elastic element, so that the knitting needle enters the holding groove of the chain plate, and the stability of the knitting needle entering the holding groove is improved.

[0016] Optionally, a third elastic element is arranged between the transfer plate and the transfer cylinder, the transfer plate is located away from the discharge port in a natural state of the third elastic element, a moving block is fixedly arranged at the lower end of the transfer plate and slidably connected with a top plate in the vertical direction, a fourth elastic element is fixedly connected between the top plate and the moving block, the lower end surface of the top plate is lower than the lower end surface of the moving block in a natural state of the fourth elastic element, a pushing rod is fixedly connected to the end of the chain plate along the length direction, the top block is opposite to the pushing rod located at the upper end of the conveying belt when the fourth elastic element is in a natural state, the transfer cylinder is provided with a movable groove for avoiding the top block and the moving block, and an inclined block is fixedly connected in the movable groove, the top block moves upward along the inclined block and avoids the pushing rod when the top block contacts the inclined block.

[0017] By adopting the technical scheme, in the initial state, the transfer plate is located at one side of the buffer cavity under the action of the elastic member three, at this time, the transfer plate avoids the knitting needle, when the knitting needle enters the buffer cavity and faces the transfer plate, at this time, the top block is located away from the inclined block. When the chain plate moves, the push rod is close to the top block, when the push rod contacts the top block, the top block is close to the inclined block, when the top block moves, the moving block drives the transfer plate to move, so that the transfer plate pushes the knitting needle in the buffer cavity to pass through the moving groove and enter the discharge port. When the top block contacts the abutting block, the top block moves vertically, so that the top block gradually separates from the push rod, after the top block completely separates from the push rod, the transfer plate resets under the action of the elastic member three.

[0018] Optionally, the chain plate is slidably connected with two clamping plates in the width direction of the chain plate, the two clamping plates are located on the two sides of the support groove respectively, the two ends of the chain plate in the length direction are slidably connected with movable blocks in the vertical direction, a connecting rod is arranged between the clamping plate and the movable block, one end of the connecting rod is hinged to the clamping plate, and the other end of the connecting rod is hinged to the movable block, a clamping spring is arranged between the movable block and the chain plate, and the distance between the two clamping plates is smaller than the width of the knitting needle in the natural state of the clamping spring. The rack is fixedly connected with an inclined plate, and the inclined plate is located directly below the transfer cylinder, when the movable block contacts the inclined plate, the clamping spring is in a deformed state, and the two clamping plates are away from each other.

[0019] By adopting the above technical scheme, when the chain plate is located below the transfer cylinder, the movable block contacts the inclined plate, and under the action of the connecting rod, the two clamping plates are away from each other, thereby facilitating the knitting needle to fall between the two clamping plates, when the chain plate continues to move and the movable block is separated from the inclined plate, the movable block moves downward under the action of the clamping spring, and the two clamping plates are close to each other through the two connecting rods, so that the two clamping plates cooperate to clamp and position the knitting needle, which is beneficial to improve the stability of the knitting needle placed in the support groove.

[0020] Optionally, the milling groove piece includes a fixed mold, a milling knife and a power member, the fixed mold is arranged on one side of the rack in the width direction, when the chain plate drives the knitting needle to move, one end of the knitting needle needing to be punched passes directly above the fixed mold, the milling knife is located directly above the fixed mold, the power member is fixedly connected with the rack, and is used to drive the milling knife to be close to or away from the fixed mold. The fixed mold is provided with a profiling groove matched with the milling knife in the vertical direction.

[0021] By adopting the above technical scheme, when the knitting needle moves above the fixed mold, the power member drives the small knife to fall, so that the milling knife cooperates with the profiling groove to punch the knitting needle.

[0022] Optionally, the bracket is provided with a buffer pad made of elastic material, the knitting needle is in contact with the upper end surface of the buffer pad when located in the bracket, and the lower end surface of the knitting needle is higher than the upper end surface of the fixed mold when the buffer pad is in a natural state; the rack is vertically slidably connected with a mounting plate, the milling cutter is fixedly connected with the mounting plate, the power member drives the connecting plate to move vertically when working, the mounting plate is vertically slidably connected with a pressing block, a plurality of pressing springs are arranged between the pressing block and the connecting plate, and the lower end surface of the pressing block is lower than the lower end surface of the milling cutter when the pressing springs are in a natural state; and the pressing block is opposite to the upper end surface of the knitting needle when the knitting needle is located directly above the fixed mold.

[0023] By adopting the above technical scheme, when milling, the power member drives the mounting plate to move downward, the mounting plate drives the pressing block to move close to the knitting needle, the pressing block pushes the knitting needle to contact the fixed mold when the pressing block contacts the knitting needle, and then the knitting needle is pressed, at this time, the buffer pad is in a deformed state, the mounting plate continues to move and relatively displaces with the pressing block, at this time, the pressing spring is deformed, the mounting plate mills the knitting needle through the milling cutter when moving, and the chain plate supports the knitting needle through the buffer pad, thereby reducing the friction between the knitting needle and the fixed mold.

[0024] Optionally, the rack is provided with an alignment plate on the side away from the fixed mold, the alignment plate is slidably connected with the rack in the direction of moving close to or away from the fixed mold, a reset spring is arranged between the rack and the alignment plate, the alignment plate is located away from the fixed mold in a natural state of the reset spring, the lower end of the connecting plate is fixedly connected with a driving plate corresponding to the alignment plate, the driving plate drives the alignment plate to move close to the fixed mold when the driving plate contacts the alignment plate, the fixed plate is provided with a baffle on the side away from the alignment plate, the end of the knitting needle needing to be punched is opposite to the profiling groove when the knitting needle contacts the baffle, the knitting needle is fixedly connected with an adjusting plate, the adjusting plate is located on the side of the rack provided with the fixed mold, and the adjusting plate is located between the fixed mold and the transfer cylinder, and the adjusting plate guides the knitting needle to move away from the fixed mold when the knitting needle passes through the adjusting plate.

[0025] By adopting the above technical scheme, the knitting needle first passes through the adjusting plate after being separated from the transfer cylinder, at this time, the adjusting plate guides the knitting needle to move away from the baffle, thereby reducing the probability of collision between the knitting needle and the baffle, the mounting plate moves downward and drives the driving plate to move when the knitting needle moves to be located directly above the fixed mold and between the alignment plate and the baffle, the driving plate contacts the alignment plate and drives the alignment plate to move close to the baffle, the alignment plate and the baffle cooperate to position the knitting needle, thereby being beneficial to improving the positioning accuracy of the knitting needle in the milling process.

[0026] In summary, the present application has at least one of the following beneficial technical effects: 1. Before milling, the knitting needle is automatically and continuously fed, the feeding process does not need manual operation, only raw materials need to be added, the processing procedure is simplified, the operation burden of workers is reduced, and the processing convenience of the knitting needle is improved. 2. The present application can correct the position of the knitting needle multiple times during the feeding process, so as to keep the knitting needle stable and improve the processing accuracy of the knitting needle. The correction process does not need manual operation, and the processing convenience of the knitting needle is improved again. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0028] Figure 2 It is a schematic diagram intended to highlight the position of the transfer cylinder and the carrying roller.

[0029] Figure 3 It is Figure 2 It is an enlarged schematic diagram of part A in the figure.

[0030] Figure 4 It is a schematic diagram intended to highlight the internal structure of the carrying roller.

[0031] Figure 5 It is a schematic diagram intended to highlight the position of the arc-shaped block and the contact rod.

[0032] Figure 6 It is a schematic diagram intended to highlight the structure of the transfer plate.

[0033] Figure 7 It is a schematic diagram intended to highlight the connection structure of the mounting plate and the pressing block.

[0034] Figure 8 It is a schematic diagram intended to highlight the fixed mold structure.

[0035] BRIEF DESCRIPTION OF DRAWINGS: 1, rack; 11, conveying belt; 12, chain plate; 121, support groove; 122, pushing rod; 123, clamping plate; 124, movable block; 125, connecting rod; 126, clamping spring; 127, buffer pad; 13, carrying motor; 14, inclined plate; 15, mounting plate; 151, pressing block; 152, pressing spring; 153, driving plate; 16, alignment plate; 161, return spring; 17, adjusting plate; 18, finished product box; 21, fixed mold; 211, profiling groove; 212, baffle; 213, correction groove; 22, slot milling cutter; 23, power piece; 3, transfer cylinder; 31, discharge port; 311, pushing plate; 312, elastic piece two; 32, feeding port; 33, guide block; 331, guide surface; 34, pushing block; 341, inclined surface one; 342, inclined surface two; 343, contact rod; 35, elastic piece one; 36, buffer cavity; 361, moving groove; 362, guide groove; 37, transfer plate; 371, elastic piece three; 372, moving block; 373, top block; 374, elastic piece four; 375, inclined block; 4, storage box; 5, carrying roller; 51, carrying groove; 52, arc-shaped block; 53, supporting plate; 531, swinging rod; 54, connecting disc; 55, bidirectional lead screw. DETAILED DESCRIPTION

[0036] The application will be further described in detail below with reference to all the accompanying drawings.

[0037] The application discloses a device for preparing long-stroke profile milling grooves of knitting needles.

[0038] Embodiment: With reference to Figure 1 and Figure 2 A device for preparing long-stroke profile milling grooves of knitting needles comprises a rack 1, a conveying belt 11 arranged on the upper end of the rack 1 along the length direction, the conveying belt 11 is arranged in a vertical loop, and the rack 1 is provided with a conveying motor for driving the conveying belt 11 to rotate. The outer circle of the conveying belt 11 is uniformly and circumferentially fixedly connected with a plurality of chain plates 12, and the chain plates 12 are driven to move when the conveying belt 11 rotates. For all the chain plates 12 on the upper end of the conveying belt 11, any two adjacent chain plates 12 are in close contact with each other.

[0039] With reference to Figure 1 and Figure 3 The length of the chain plate 12 is less than the length of the knitting needle, and a supporting groove 121 is arranged on the upper end of the chain plate 12 along the length direction, the supporting groove 121 penetrates through the chain plate 12, and a buffer pad 127 is arranged in the supporting groove 121, the buffer pad 127 is connected with the bottom surface of the supporting groove 121, and the buffer pad 127 is made of elastic material, for example, rubber. The chain plate 12 is provided with two clamping plates 123, and the two clamping plates 123 are parallel to the buffer pad 127 and are respectively located on the two sides of the buffer pad 127. The clamping plate 123 is slidingly connected with the chain plate 12 along the direction of approaching or moving away from the buffer pad 127, and the chain plate 12 is provided with a movable block 124 at each end along the length direction, and the movable block 124 is slidingly connected with the chain plate 12 along the direction of approaching or moving away from the buffer pad 127.

[0040] With reference to Figure 1 and Figure 3 A clamping spring 126 is fixedly connected between the movable block 124 and the chain plate 12, one end of the clamping spring 126 is fixedly connected with the movable block 124, and the other end is fixedly connected with the chain plate 12. In the natural state of the clamping spring 126, the movable block 124 is located away from the buffer pad 127. A connecting rod 125 is arranged between the movable block 124 and the clamping plate 123, one end of the connecting rod 125 is hinged with the clamping plate 123, and the other end is hinged with the movable block 124. When the movable block 124 is located away from the buffer pad 127, the two clamping plates 123 are close to each other under the action of the corresponding connecting rod 125, and the spacing between the two clamping plates 123 is less than the width of the knitting needle at this time.

[0041] With reference to Figure 1 and Figure 2, one end of the rack 1 is fixedly connected with a transfer cylinder 3, the transfer cylinder 3 is located above the rack 1, and the lower end of the transfer cylinder 3 is provided with a plane, when the chain plate 12 is driven by the conveying belt 11 to pass below the transfer cylinder 3, the upper end surface of the chain plate 12 is close to the plane. A circular cavity is formed in the transfer cylinder 3, and a carrying roller 5 is coaxially arranged in the circular cavity, the carrying roller 5 is rotatably connected with the transfer cylinder 3, and one end of the carrying roller 5 penetrates through the transfer cylinder 3 and is coaxially fixed with a rotating wheel, the rack 1 is provided with a carrying motor 13 for driving the rotating wheel to rotate, and the rotating wheel drives the carrying roller 5 to rotate around its axis when rotating.

[0042] With reference to Figure 2 and Figure 4 , the outer circle of the carrying roller 5 is attached to the inner wall of the circular cavity, and a plurality of carrying grooves 51 are formed in the outer circle of the carrying roller 5 in the circumferential direction, and a supporting plate 53 is arranged in each of the carrying grooves 51, the supporting plate 53 is arranged parallel to the axis of the carrying roller 5, and the side edge of the supporting plate 53 in the width direction is attached to the side wall of the carrying groove 51. The carrying roller 5 is coaxially rotatably provided with a bidirectional screw 55, the two ends of the bidirectional screw 55 are threadedly connected with a connecting disc 54, and the connecting disc 54 is slidably connected with the carrying roller 5 along the axis of the carrying roller 5. When the bidirectional screw 55 is rotated by an operator, the bidirectional screw 55 drives the two connecting discs 54 to move closer to or away from each other.

[0043] With reference to Figure 4 , a swing rod 531 is arranged between the connecting disc 54 and each of the supporting plates 53, one end of the swing rod 531 is hingedly connected with the connecting disc 54, and the other end is hingedly connected with the supporting plate 53, and the connecting disc 54 drives the supporting plate 53 to move when the connecting disc 54 moves. The two connecting discs 54 move synchronously, and the lengths of all the swing rods 531 are the same, so that the connecting disc 54 drives all the supporting plates 53 to move closer to or away from the axis of the carrying roller 5 when the connecting disc 54 moves, thereby facilitating the simultaneous movement of all the supporting plates 53, adjusting the distance between the supporting plates 53 and the axis of the carrying roller 5, and adjusting the depth of the carrying grooves 51.

[0044] With reference to Figure 2 and Figure 3 , the upper end of the transfer cylinder 3 is fixedly connected with a storage box 4, and the transfer cylinder 3 is provided with a feeding port 32 communicating with the storage box 4, and during operation, the operator places a batch of knitting needles into the storage box 4, and at this time, only the end of the knitting needle that needs to be punched needs to be aligned, without the need to confirm the specific number of knitting needles. After the knitting needles are placed into the storage box 4, the knitting needles move to the circular cavity through the feeding port 32 under the action of gravity.

[0045] With reference to Figure 2 and Figure 3The guiding block 33 is arranged on the upper end surface of the guiding block 33, and the upper end surface of the guiding block 33 is provided with a guiding surface 331. The guiding surface 331 is arranged in a horizontal direction from top to bottom, and the guiding surface 331 is tangent to the outer circle of the conveying roller 5. When the needle contacts the guiding surface 331, the needle moves along the guiding surface 331 to the outer circle of the conveying roller 5. At this time, the needle is in an inclined state, and under the action of gravity, if the maximum end surface of the needle is in close contact with the guiding surface 331, the needle moves stably along the guiding surface 331. If the maximum end surface of the needle is perpendicular to the guiding surface 331, the inclined needle is prone to overturning under the action of gravity, so that the maximum end surface of the needle is in close contact with the guiding surface 331.

[0046] Referring to Figure 2 and Figure 3 , the upper end of the transfer cylinder 3 is further provided with a pushing block 34, the pushing block 34 is located on one side of the feeding port 32, and the pushing block 34 is slidingly connected with the transfer cylinder 3 in the direction of approaching or moving away from the conveying roller 5. The conveying motor 13 drives the upper end of the conveying roller 5 to move from the feeding port 32 to the pushing block 34. The pushing block 34 and the transfer cylinder 3 are provided with an elastic member 35, the elastic member 35 is a spring, one end of the spring is fixedly connected with the pushing block 34, and the other end is fixedly connected with the transfer cylinder 3. When the elastic member 35 is in a natural state, the pushing block 34 is located close to the transfer roller. The lower end surface of the pushing block 34 is provided with an inclined surface 341, the inclined surface 341 has the same inclination direction as the guiding surface 331, and the inclined surface 342 has a different inclination angle with the guiding surface 331. In the sliding direction of the needle, the distance between the inclined surface 341 and the guiding surface 331 gradually decreases.

[0047] Referring to Figure 2 and Figure 5 , the maximum end surface of the needle is a parallel surface, the side surface of the needle in the width direction is a vertical surface, the gap between the lower end of the guiding surface 331 and the inclined surface 341 is a limiting port, and the width of the limiting port is smaller than the width of the needle and larger than the thickness of the needle in the natural state of the elastic member 35. When the needle slides along the guiding surface 331 in a state that the vertical surface is in close contact with the guiding surface 331, the pushing block 34 limits the needle through the inclined surface 341. The outer circle of the conveying roller 5 is fixedly connected with a plurality of arc blocks 52 in the circumferential direction, and the pushing block 34 is fixedly connected with a contact rod 343 corresponding to the arc block 52. When the elastic member 35 is in a natural state, the contact rod 343 is located between any two arc blocks 52.

[0048] Referring to Figure 2 and Figure 5, when the carrying roller 5 rotates, the arc-shaped block 52 is driven to approach the contact rod 343, when the arc-shaped block 52 contacts the contact rod 343, the contact rod 343 is driven to move, the contact rod 343 drives the pushing block 34 to move away from the carrying roller 5, at this time, the elastic member one 35 is deformed. When the arc-shaped block 52 is separated from the contact rod 343, the pushing block 34 is reset under the action of the elastic member one 35, the pushing block 34 drives the knitting needle to shake during the movement, thereby reducing the probability of the knitting needle being stuck in the limiting opening.

[0049] With reference to Figure 2 and Figure 3 , the knitting needle contacts the outer circle of the carrying roller 5 after passing through the limiting opening, when the carrying roller 5 rotates, the knitting needle is driven to move synchronously, if the knitting needle is opposite to the carrying groove 51, the knitting needle directly falls into the carrying groove 51. The carrying roller 5 continues to rotate and drives the knitting needle to move to the lower end of the transfer cylinder 3, the depth of the carrying groove 51 is matched with the thickness of the knitting needle, thereby only one knitting needle is accommodated in a single carrying groove 51. If the knitting needle is not opposite to the carrying groove 51, when the carrying roller 5 drives the knitting needle to rotate, the knitting needle contacts the inclined surface one 341, at this time, the pushing block 34 prevents the knitting needle from continuing to move, until any carrying groove 51 is opposite to the knitting needle, so that the knitting needle falls into the carrying groove 51 under the action of gravity.

[0050] With reference to Figure 2 and Figure 3 , the lower end of the pushing block 34 is further provided with an inclined surface two 342, the inclined surface two 342 is located on the side away from the feeding opening 32 of the inclined surface one 341, and the inclined direction of the inclined surface two 342 is opposite to that of the inclined surface one 341. After the knitting needle falls into the carrying groove 51, if one side of the knitting needle contacts the side of the carrying groove 51, at this time, the parallel surface of the knitting needle is in an inclined state with the supporting plate 53. When the carrying roller 5 drives the knitting needle to move, the knitting needle is stuck by the side of the carrying groove 51, thereby the pushing block 34 is driven to move through the inclined surface one 341, when the knitting needle is opposite to the inclined surface two 342, the pushing block 34 is reset and drives the knitting needle to move into the carrying groove 51 through the inclined surface two 342, thereby the parallel surface of the knitting needle is attached to the supporting plate 53.

[0051] With reference to Figure 2 and Figure 3, the lower end of the transfer cylinder 3 is provided with a discharge port 31, the discharge port 31 is vertically arranged, the upper end of the discharge port 31 is provided with a push plate 311, the push plate 311 is vertically and slidingly connected with the transfer cylinder 3, the push plate 311 and the transfer cylinder 3 are fixedly connected with a second elastic element 312, and the second elastic element 312 is a spring. The lower end of the transfer cylinder is also provided with a guide groove 362, a buffer cavity 36 and a moving groove 361, the moving groove 361 is parallel to the discharge port 31 and is located on the side of the discharge port 31 close to the push block 34, the moving groove 361 communicates the buffer cavity 36 with the discharge port 31, and the lower side wall of the moving groove 361 is flush with the lower side wall of the buffer cavity 36. The guide groove 362 is located on the side of the buffer cavity 36 away from the moving groove 361, one end of the guide groove 362 communicates with the buffer cavity 36, and the other end communicates with the lower end of the circular cavity. The guide groove 362 is inclinedly arranged from top to bottom in the direction of the buffer cavity 36 pointing to the discharge port 31.

[0052] Referring to Figure 2 and Figure 3 , when the knitting needle moves to the lower end of the transfer cylinder 3, the knitting needle is separated from the supporting plate 53 and close to the inner wall of the transfer cylinder 3 under the action of gravity, falls into the guide groove 362 when the knitting needle is opposite the end of the guide groove 362, and moves along the guide groove 362 to the buffer cavity 36. The carrying roller 5 drives the knitting needles to enter the guide groove 362 one by one, so that the knitting needles push each other in the guide groove 362, the height of the guide groove 362 is greater than the thickness of the knitting needle and less than the width of the knitting needle, thereby limiting the turning of the knitting needle in the guide groove 362, and the end of the guide groove 362 close to the buffer cavity 36 approaches to the horizontal direction, so that the knitting needle falls into the buffer cavity 36 and is in a horizontal state.

[0053] Referring to Figure 3 and Figure 6 , the transfer cylinder 3 is provided with a transfer plate 37 for pushing the knitting needle to move, the transfer plate 37 is located on the side of the buffer cavity 36 away from the moving groove 361 and is slidingly connected with the transfer cylinder 3 in the transverse direction. The transfer plate 37 and the transfer cylinder 3 are fixedly connected with a third elastic element 371, the third elastic element 371 is also a spring, when the third elastic element 371 is in a natural state, the transfer plate 37 is located away from the discharge port 31, at this time, the transfer plate 37 avoids the knitting needle entering the buffer cavity 36. The lower end of the transfer plate 37 is fixedly connected with a moving block 372, the transfer cylinder 3 is provided with a movable groove for avoiding the moving block 372, the moving block 372 is located in the movable groove and is slidingly connected with a top block 373 in the vertical direction. The top block 373 and the moving block 372 are provided with a fourth elastic element 374, the fourth elastic element 374 is a spring, and the fourth elastic element 374 applies a downward pushing force to the top block 373.

[0054] Referring to Figure 3 and Figure 6, the lower end surface of the top block 373 is lower than the lower end surface of the moving block 372 in the natural state of the elastic member four 374. The chain plate 12 is fixedly connected with a push rod 122 at the length direction end, and the chain plate 12 moves to drive the push rod 122 to approach the top block 373. When the push rod 122 contacts the top block 373, the top block 373 is pushed to approach the discharge port 31. When the top block 373 moves, the moving block 372 drives the transfer plate 37 to move synchronously, so that the transfer plate 37 drives the lowermost knitting needle in the buffer cavity 36 to move through the moving groove 361 to the discharge port 31.

[0055] With reference to Figure 3 and Figure 6 , in the natural state of the elastic member two 312, the lower end surface of the push plate 311 is lower than the upper side surface of the moving groove 361, and the side of the push plate 311 close to the moving groove 361 is provided with an arc surface. The two ends of the transfer plate 37 along the length direction are fixedly connected with straight rods opposite to the arc surface, and the knitting needle is located between the two straight rods. After the knitting needle enters the discharge port 31, the straight rods contact the arc surface of the push plate 311 and push the push plate 311 to move upward. At this time, the transfer plate 37 continues to move, so that the knitting needle moves to the lower side of the push plate 311.

[0056] With reference to Figure 3 and Figure 6 , the movable groove is further fixedly connected with an inclined block 375, and the side of the top block 373 close to the inclined block 375 is fixedly connected with a triangular block. When the top block 373 moves under the drive of the push rod 122, the top block 373 drives the triangular block to approach the inclined block 375. When the triangular block contacts the inclined block 375, the triangular block moves upward along the inclined block 375, so that the top block 373 avoids the push rod 122. When all the knitting needles enter the discharge port 31, the top block 373 is completely separated from the push rod 122, and the transfer plate 37 resets under the action of the elastic member three 371.

[0057] With reference to Figure 3 and Figure 6 , the rack 1 is fixedly connected with an inclined plate 14, and the inclined plate 14 is located at the lower end of the transfer cylinder 3. When the chain plate 12 moves to the lower side of the transfer cylinder 3 and the support groove 121 is opposite to the discharge port 31, the movable block 124 is located above the inclined plate 14 and abuts against the inclined plate 14. At this time, the movable block 124 approaches the buffer pad 127 under the drive of the inclined plate 14, and the two clamping plates 123 are in a state of moving away from each other.

[0058] With reference to Figure 3 and Figure 6, the push plate 311 pushes the knitting needle to move to the supporting groove 121 under the action of the elastic member two 312, so that the knitting needle falls into the supporting groove 121, and at this time, the parallel surface of the knitting needle is attached to the upper end surface of the buffer pad 127. The conveying belt 11 continues to drive the chain plate 12 to move, when the chain plate 12 drives the movable block 124 to be separated from the inclined plate 14, the movable block 124 resets under the action of the clamping spring 126, at this time, the two clamping plates 123 cooperate to clamp and position the knitting needle.

[0059] With reference to Figure 1 and Figure 7 , the rack 1 is further provided with a slot milling element, the slot milling element comprises a fixed die 21, a slot milling cutter 22 and a power element 23, the upper end of the rack 1 is slidably connected with a mounting plate 15 along the vertical direction, the power element 23 is arranged above the mounting plate 15 and is fixedly connected with the rack 1, and the power element 23 is selected as a hydraulic cylinder, which is used to drive the mounting plate 15 to move along the vertical direction.

[0060] With reference to Figure 7 and Figure 8 , the slot milling cutter 22 is arranged at the lower end of the mounting plate 15 and moves synchronously with the mounting plate 15. The fixed die 21 is located directly below the slot milling cutter 22 and is fixed with the rack 1, and the fixed die 21 is vertically opened with a profiling groove 211 which is adapted to the slot milling cutter 22.

[0061] With reference to Figure 1 and Figure 7 , since the length of the chain plate 12 is less than the length of the knitting needle, when the knitting needle falls into the supporting groove 121, the end of the knitting needle is located outside the chain plate 12, the chain plate 12 drives the knitting needle to move to the fixed die 21, so that the end of the knitting needle which needs to be punched passes directly above the fixed die 21. The rack 1 is fixedly connected with an adjusting plate 17, the adjusting plate 17 is located on the side of the rack 1 where the fixed die 21 is arranged, and the side edge of the adjusting plate 17 close to the chain plate 12 is provided with an inclined edge, when the chain plate 12 drives the knitting needle to pass through the adjusting plate 17, if the knitting needle contacts the inclined edge, the knitting needle will move away from the fixed die 21 along the inclined edge, at this time, the knitting needle is calibrated and positioned for the first time.

[0062] With reference to Figure 7 and Figure 8The side of the rack 1 away from the fixed mold 21 is also provided with an alignment plate 16, which is slidingly connected with the rack 1 in the direction of approaching or moving away from the fixed mold 21. A return spring 161 is installed between the alignment plate 16 and the rack 1, one end of the return spring 161 is fixedly connected with the rack 1, and the other end is fixedly connected with the alignment plate 16. In the natural state of the return spring 161, the alignment plate 16 is in a position away from the fixed mold 21, and the lower end of the mounting plate 15 is also fixedly connected with a driving plate 153, which is located above the alignment plate 16 and opposite to the alignment plate 16. When the driving plate 153 contacts the alignment plate 16 from top to bottom, it pushes the alignment plate 16 to approach the fixed mold 21. The upper end of the fixed mold 21 is provided with a baffle 212, which is located on the side of the profiling groove 211 away from the alignment plate 16, and the alignment plate 16 is opposite to the baffle 212.

[0063] With reference to Figure 1 and Figure 7 , the upper end face of the buffer pad 127 (refer to Figure 3 ) is higher than the upper end face of the fixed mold 21, so that when the chain plate 12 drives the knitting needle to move to the upper end of the fixed mold 21, the lower end face of the knitting needle does not contact the upper end face of the fixed mold 21, thereby reducing the probability of friction or interference between the knitting needle and the fixed mold 21. The mounting plate 15 is slidingly connected with a pressing block 151 in the vertical direction, and when the knitting needle is located above the fixed mold 21, the pressing block 151 is opposite to the knitting needle. A plurality of pressing springs 152 are fixedly connected between the pressing block 151 and the mounting plate 15, and the pressing springs 152 exert a downward pushing force on the pressing block 151.

[0064] With reference to Figure 1 and Figure 8 , when the chain plate 12 drives any knitting needle to move above the fixed mold 21, the knitting needle is located between the alignment plate 16 of the baffle 212, the baffle 212 is provided with a correction groove 213 adapted to the knitting needle, and the power member 23 drives the mounting plate 15 to move downward, at this time the driving plate 153 first drives the alignment plate 16 to approach the knitting needle, and pushes one end of the knitting needle into the correction groove 213 and abuts against the baffle 212, so that the position of the knitting needle which needs to be punched is opposite to the profiling groove 211. The two sides of the correction groove 213 are inclinedly arranged, and when the chain plate 12 continues to drive the knitting needle to move, the knitting needle directly moves out along the side of the correction groove 213.

[0065] With reference to Figure 1 and Figure 8 , the mounting plate 15 continues to move and drives the pressing block 151 (refer to Figure 7 ) to abut against the knitting needle through the supporting groove 121, and pushes the knitting needle to adhere to the fixed mold 21, at this time the buffer pad 127 (refer to Figure 3) deformation. The installation plate 15 drives the milling groove cutter 22 to move downward again, and relative displacement occurs with the pressing block 151, so that the pressing spring 152 is deformed. The milling groove cutter 22 cooperates with the profiling groove 211 to mill the groove of the knitting needle, and after the processing is completed, the installation plate 15 is reset, and the conveying belt 11 continues to drive the chain plate 12 to move. The rack 1 is provided with a finished product box 18 at the end away from the transfer cylinder 3, and the finished product box 18 is located below the conveying belt 11. And the rack 1 is also provided with an inclined plate 14 above the finished product box 18, and after the chain plate 12 drives the knitting needle to move above the finished product box 18, the corresponding movable block 124 again abuts against the inclined plate 14, at this time, the two clamping plates 123 are away from each other, and the knitting needle is moved out of the supporting groove 121 under the action of gravity and falls into the finished product box 18.

[0066] The working principle of the long-stroke profiling milling device for knitting needle preparation according to the embodiment of the application is as follows: the knitting needle is sequentially dropped into the supporting groove 121 of the chain plate 12 through the setting of the transfer cylinder 3 and the carrying roller 5, and the knitting needle is automatically corrected in position when it is dropped into the supporting groove 121 through the setting of the pushing block 34 and the guide groove 362 and the like, so that the maximum end face of the knitting needle is opposite to the milling groove cutter 22. The knitting needle is automatically discharged when it moves to the discharging position after the milling groove processing is completed through the setting of the clamping plate 123 and the inclined plate 14. The feeding, milling and discharging processes of the knitting needle are all automatically performed, which improves the processing automation level of the knitting needle and is beneficial to improving the processing convenience of the knitting needle.

[0067] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A device for preparing long-stroke profiled grooving of knitting needles, comprising a frame (1) provided with a conveyor belt (11) for conveying knitting needles along the length direction, and provided with a grooving element for machining the knitting needles, characterized in that, Also include: The transfer cylinder (3) is fixed to the upper end of the rack (1), and the lower end of the transfer cylinder (3) is opened to the discharge port (31), the conveying belt (11) is uniformly arranged with a plurality of chain plates (12) along the circumference, the chain plate (12) is provided with a supporting groove (121) for placing the knitting needle, the lower end of the transfer cylinder (3) is provided with a discharge port (31) matched with the knitting needle, and the supporting groove (121) is opposite to the discharge port (31) when any chain plate (12) is located directly below the transfer cylinder (3); The storage box (4) is fixed to the upper end of the transfer cylinder (3) and is used for batch placing knitting needles, and the upper end of the transfer cylinder (3) is provided with a feeding port (32) communicated with the storage box (4); The carrying roller (5) is located inside the transfer cylinder (3), the transfer cylinder (3) is opened to the circular cavity communicated with the feeding port (32) and the discharge port (31), the carrying roller (5) is located in the circular cavity and is connected with the transfer cylinder (3) in the vertical direction, the rack (1) is fixedly provided with a carrying motor (13) for driving the carrying roller (5) to rotate, the outer circle of the carrying roller (5) is attached to the inner wall of the circular cavity, the feeding port (32) is fixedly connected with a guide block (33), the upper end surface of the guide block (33) is provided as a guide surface (331), the guide surface (331) is inclined from top to bottom along the horizontal direction and is tangent to the outer circle of the carrying roller (5), the outer circle of the carrying roller (5) is provided with a plurality of carrying grooves (51) along the axial direction, and the maximum end surface of the knitting needle is opposite to the axis of the carrying roller (5) when the knitting needle is located in the carrying groove (51).

2. A device for preparing long-stroke profiled grooves by means of a knitting needle according to claim 1, characterized in that: The transfer cylinder (3) is connected with a pushing block (34) along the diameter direction of the carrying roller (5), the lower end surface of the pushing block (34) is provided with an inclined surface (341), the inclined surface (341) is the same as the inclination direction of the guide surface (331), the gap between the lower end of the guide surface (331) and the inclined surface (341) is provided as a limiting opening, the elastic member (35) is provided between the pushing block (34) and the transfer cylinder (3), the elastic member (35) applies a pushing force to the pushing block (34) to approach the axis of the carrying roller (5), and the width of the limiting opening is smaller than the width of the knitting needle and greater than the thickness of the knitting needle in the natural state of the elastic member (35).

3. A device for preparing long-stroke profiled grooves by means of a knitting needle according to claim 2, characterized in that: The lower end of the pushing block (34) is also provided with an inclined surface (342), the inclined surface (342) is located on the side away from the feeding port (32) of the inclined surface (341), and the inclination direction of the inclined surface (342) is opposite to that of the inclined surface (341), and the edge line intersecting the inclined surface (341) and the inclined surface (342) is close to the outer circle of the carrying roller (5) in the natural state of the elastic member (35), a plurality of arc blocks (52) are fixedly arranged on the outer circle of the carrying roller (5), one side of the pushing block (34) is fixedly connected with a contact rod (343) corresponding to the arc block (52), and the contact rod (343) is located between any two arc blocks (52) in the natural state of the elastic member (35).

4. A device for preparing long-stroke profiled grooves by means of a knitting needle according to claim 1, characterized in that: The carrying groove (51) is provided with a supporting plate (53) which is rotationally connected with the carrying roller (5) in the direction close to or away from the axis of the carrying roller (5), both ends of the supporting plate (53) are hingedly connected with swing rods (531), the carrying roller (5) is provided with an avoiding groove, the swing rods (531) pass through the avoiding groove and are close to the axis of the carrying roller (5), both ends of the carrying roller (5) in the axial direction are provided with connecting discs (54) which are slidingly connected with the carrying roller (5) in the axial direction of the carrying roller (5), the two swing rods (531) on the same supporting plate (53) are hingedly connected with the two connecting discs (54), the carrying roller (5) is coaxially rotationally connected with a bidirectional screw rod (55), and the two connecting discs (54) are located at both ends of the bidirectional screw rod (55) and are threadedly connected with the bidirectional screw rod (55).

5. A device for preparing long-stroke profiled grooves by means of a knitting needle according to claim 1, characterized in that: The discharge port (31) is vertically arranged, and a push plate (311) is slidingly connected in the discharge port (31) in the vertical direction, and the push plate (311) and the transfer cylinder (3) are provided with an elastic element two (312), the elastic element two (312) applies a downward pushing force to the push plate (311), the lower end of the transfer cylinder (3) is provided with a buffer cavity (36), the buffer cavity (36) is located on the side of the discharge port (31) close to the push block (34), and the buffer cavity (36) is in communication with the discharge port (31). The moving groove (361) is flush with the lower side wall of the buffer cavity, the transfer cylinder (3) is also provided with a guide groove (362) which is in communication with the buffer cavity and the circular cavity, the guide groove (362) is inclined from top to bottom and points to the direction of the discharge port (31) along the buffer cavity (36), and is used for guiding the knitting needle moving to the lower end of the transfer cylinder (3) into the buffer cavity, the transfer cylinder (3) is provided with a transfer plate (37), and the transfer plate (37) is used for pushing the knitting needle in the buffer cavity to the discharge port (31).

6. A device for preparing long-stroke profiled grooves by means of a knitting needle according to claim 5, characterized in that: The transfer plate (37) and the transfer cylinder (3) are provided with an elastic element three (371), the transfer plate (37) is located away from the discharge port (31) in the natural state of the elastic element three (371), the lower end of the transfer plate (37) is fixedly provided with a moving block (372), the moving block (372) is slidingly connected with a top plate in the vertical direction, the top plate and the moving block (372) are fixedly connected with an elastic element four (374), the lower end surface of the top plate is lower than the lower end surface of the moving block (372) in the natural state of the elastic element four (374), the end of the chain plate (12) in the length direction is fixedly connected with a push rod (122), the top block (373) is opposite to the push rod (122) located at the upper end of the conveying belt (11) when the elastic element four (374) is in the natural state, the transfer cylinder (3) is provided with a movable groove for avoiding the top block (373) and the moving block (372), the movable groove is fixedly connected with an inclined block (375), the top block (373) moves upward along the inclined block (375) when the top block (373) contacts with the inclined block (375), and the push rod (122) is avoided.

7. A device for preparing long-stroke profiled grooves by means of a knitting needle according to claim 1, characterized in that: The chain plate (12) is slidably connected with two clamping plates (123) along the width direction of the chain plate (12), the two clamping plates (123) are located on the two sides of the bracket (121) respectively, the two ends of the chain plate (12) along the length direction are slidably connected with movable blocks (124) along the vertical direction, a connecting rod (125) is arranged between the clamping plate (123) and the movable block (124), one end of the connecting rod (125) is hinged to the clamping plate (123), the other end is hinged to the movable block (124), a clamping spring (126) is arranged between the movable block (124) and the chain plate (12), when the clamping spring (126) is in a natural state, the distance between the two clamping plates (123) is smaller than the width of the knitting needle, the rack (1) is fixedly connected with an inclined plate (14), the inclined plate (14) is located directly below the transfer cylinder (3), when the movable block (124) contacts the inclined plate (14), the clamping spring (126) is in a deformed state, and the two clamping plates (123) are away from each other.

8. A device for preparing long-stroke profiled grooves by means of a knitting needle according to claim 1, characterized in that: The milling groove piece includes a fixed mold (21), a milling groove cutter (22) and a power piece (23), the fixed mold (21) is arranged on one side of the rack (1) along the width direction, when the chain plate (12) drives the knitting needle to move, one end of the knitting needle which needs to be punched passes directly above the fixed mold (21), the milling groove cutter (22) is located directly above the fixed mold (21), the power piece (23) is fixedly connected with the rack (1) and is used for driving the milling groove cutter (22) to approach or move away from the fixed mold (21), the fixed mold (21) is provided with a profiling groove (211) which is adapted to the milling groove cutter (22) and is opened along the vertical direction.

9. A device for preparing long-stroke profiled grooves by means of a knitting needle according to claim 8, characterized in that: The bracket (121) is provided with a buffer pad (127), the buffer pad (127) is made of an elastic material, the knitting needle contacts the upper end surface of the buffer pad (127) when the knitting needle is located in the bracket (121), when the buffer pad (127) is in a natural state, the lower end surface of the knitting needle is higher than the upper end surface of the fixed mold (21), the rack (1) is slidably connected with a mounting plate (15) along the vertical direction, the milling groove cutter (22) is fixedly connected with the mounting plate (15), the power piece (23) drives the connecting plate to move along the vertical direction when working, the mounting plate (15) is slidably connected with a pressing block (151) along the vertical direction, a plurality of pressing springs (152) are arranged between the pressing block (151) and the connecting plate, when the pressing spring (152) is in a natural state, the lower end surface of the pressing block (151) is lower than the lower end surface of the milling groove cutter (22), when the knitting needle is located directly above the fixed mold (21), the pressing block (151) is opposite to the upper end surface of the knitting needle.

10. A device for preparing long-stroke profiled grooves by means of a knitting needle according to claim 8, characterized in that: The side of the frame (1) away from the fixed mold (21) is provided with an alignment plate (16), the alignment plate (16) is slidably connected with the frame (1) along the direction close to or away from the fixed mold (21), reset spring (161) is arranged between the frame (1) and the alignment plate (16), the alignment plate (16) is away from the fixed mold (21) in the natural state of the reset spring (161), the lower end of the connecting plate is fixedly connected with the corresponding drive plate (153) of the alignment plate (16), the drive plate (153) drives the alignment plate (16) to be close to the fixed mold (21) when the drive plate (153) is in contact with the alignment plate (16), the side of the fixed plate away from the alignment plate (16) is provided with a baffle (212), when the needle is in contact with the baffle (212), the end of the needle which needs to be punched is opposite to the profiling groove (211), the needle is fixedly connected with the adjusting plate (17), the adjusting plate (17) is located on the side of the frame (1) provided with the fixed mold (21), and the adjusting plate (17) is located between the fixed mold (21) and the transfer cylinder (3), when the needle passes through the adjusting plate (17), the adjusting plate (17) guides the needle to be away from the fixed mold (21).

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