An automated needle changing device for a knitting machine

Abstract

This utility model discloses an automated needle changing device for a knitting machine, relating to the field of knitting machine technology. It includes a support frame; a bracket is fixedly connected to the outer ring array at the top of the support frame; a support rod is fixedly connected to the top of the bracket; a yarn holder is fixedly mounted at the top of the support rod; a support member is provided in the middle of the top of the support frame; and a needle cylinder is mounted at the top of the support member. In this utility model, starting a first cylinder pushes the support cylinder upwards, causing the support cylinder to drive a support plate upwards, thus engaging the support plate with a limiting block. Then, starting a first motor drives the support plate to rotate, which in turn drives the limiting block to rotate. The limiting block then drives the needle cylinder body to rotate, causing the needle cylinder body to rotate and rotate an mounting ring. The mounting ring then rotates out of the locking plate slot. Subsequently, the first cylinder continues to push the support cylinder to move, causing the support cylinder to push the needle cylinder body to the top, facilitating disassembly of the needle cylinder body.

Description

Technical Field

[0001] This utility model belongs to the field of knitting machine technology, and in particular relates to an automated needle changing device for knitting machines. Background Technology

[0002] A knitting machine is a mechanical device that uses needles to bend yarn into loops and interlock them to form knitted fabric. It is the core equipment in the textile industry for producing knitted fabrics. Through mechanized loop knitting technology, it achieves efficient and continuous fabric production. Circular knitting machines are a type of knitting machine.

[0003] As disclosed in CN219326895U, this utility model relates to the field of circular knitting machine technology. This utility model discloses a double-sided circular knitting machine with convenient needle replacement, effectively solving the problems of inconvenient needle replacement and safety hazards during needle replacement in existing circular knitting machines. It includes three lower legs and a fixing ring. The three lower legs are arranged in a circular array and fixedly connected to the bottom of the fixing ring. A base frame is fixedly connected between the lower ends of the three lower legs. A fixing frame is provided above the fixing ring. Three hydraulic cylinders arranged in a circular array are installed between the fixing frame and the fixing ring. A needle cylinder is installed on the lower surface of the fixing frame. A weft knitting machine is installed on the upper surface of the fixing ring and below the needle cylinder. Three support components are provided between the fixing ring and the fixing frame. Through the coordinated use of the fixing ring, fixing frame, hydraulic cylinders, needle cylinder, and support components, the needles on the needle cylinder can be easily replaced while ensuring safety during replacement.

[0004] In existing technologies, the needle cylinder is stabilized after being raised by a combination of a fixing ring, a fixing frame, a hydraulic cylinder, a needle cylinder, and a support assembly, facilitating needle replacement. However, knitting machines have a large overall structure and a large number of needles in the needle cylinder. Maintaining a single posture while standing on the support platform for extended periods can cause fatigue, affecting needle replacement speed and reducing work efficiency. Therefore, we provide an automated needle changing device for knitting machines to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide an automated needle changing device for knitting machines, which solves the problems of existing knitting machines having a large overall structure and a large number of needles in the cylinder, which can easily cause physical fatigue for personnel by standing on the support platform for a long time, thus affecting the needle changing speed and reducing work efficiency.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to an automated needle changing device for a knitting machine, comprising a support frame; a bracket is fixedly connected to the outer side of the top of the support frame in a circular array, a support rod is fixedly connected to the top of the bracket, a yarn rack is fixedly installed at the top of the support rod, a support member is provided in the middle of the top of the support frame, a needle cylinder is provided at the top of the support member, an installation and disassembly assembly is provided at the bottom of the support frame and the yarn rack is provided at the top of the yarn rack.

[0008] The present invention is further configured such that the installation and disassembly assembly includes a fixing frame, the fixing frame is fixed in the middle of the support frame, a first cylinder is fixedly installed in the middle of the top of the fixing frame, a support cylinder is fixedly connected to the output end of the first cylinder, a first motor is fixedly installed inside the support cylinder, a rotating shaft is drivenly connected to the top of the first motor, a support plate is fixedly connected to the top of the rotating shaft, and a bottom ring is fixedly connected to the bottom end of the support plate outside the rotating shaft, and the bottom ring is rotatably connected to the support cylinder.

[0009] The present invention is further configured such that the replacement component includes a connecting frame, the connecting frame is fixed on both sides of the support frame, a top plate is fixedly connected to the top of the connecting frame, a lead screw is rotatably connected to the middle of the top plate, one end of the lead screw passes through the top plate, and a second motor is drivenly connected to the end of the lead screw passing through the top plate, and the second motor is fixedly installed with the top plate.

[0010] The present invention is further configured such that a slider is threadedly connected to one end of the lead screw located in the middle of the top plate, the slider is slidably connected to the top plate, a connecting rod is fixedly connected to the middle of the bottom end of the slider, a connecting block is fixedly connected to the bottom end of the connecting rod, a first connecting head is fixedly connected to both sides of the connecting block, a deflection rod is rotatably connected to the middle of the first connecting head, and a clamping plate is fixedly connected to the end of the deflection rod away from the first connecting head.

[0011] The present invention is further configured such that the top end of the deflection rod is provided with two second connectors, the middle part of the second connectors is rotatably connected to a second cylinder, one second connector is fixed on both sides of the bottom end of the slider, and the other second connector is fixed on the middle part of the deflection rod.

[0012] The present invention is further configured such that the support member includes a fixing rod, the fixing rod is fixed on one side of the bracket that is close to each other, and a support ring is fixedly connected to the end of the fixing rod away from the bracket. The top end of the support ring has a ring array of slots.

[0013] The present invention is further configured such that the syringe component includes a syringe body, the syringe body is disposed at the top of the support ring, an mounting ring is fixedly connected to the middle of the outer wall of the syringe body, the mounting ring abuts against the support ring, a retaining plate is fixedly connected to the bottom end of the mounting ring in an annular array, the retaining plate engages with the retaining groove, and a limiting block is fixedly connected to the bottom end of the syringe body, the limiting block engages with the top end of the support plate.

[0014] This utility model has the following beneficial effects:

[0015] In this utility model, the first cylinder is started to push the support cylinder to rise, and the support cylinder drives the support plate to rise, so that the support plate is engaged with the limiting block. Then the first motor is started, and the first motor drives the support plate to rotate. The support plate drives the limiting block to rotate, and the limiting block drives the syringe body to rotate. The syringe body drives the mounting ring to rotate, and the mounting ring drives the locking plate to rotate out of the locking groove. Then the first cylinder continues to push the support cylinder to move, and the support cylinder pushes the syringe body to rise to the top, which facilitates the disassembly of the syringe body by personnel.

[0016] Before disassembling the syringe body, the second motor is started to drive the lead screw to rotate. The lead screw drives the slider to move to the top of the syringe body. After the syringe body rises, the second cylinder is started to drive the deflection rod to deflect downward. The deflection rod drives the clamping plate to deflect around the first connector, so that the clamping plate clamps the top of the syringe body. Then the output end of the first cylinder shortens, and the support plate separates from the limit block. Then the second motor is started again, the lead screw reverses, and the slider moves back to move the syringe body out, so that the staff can remove the syringe body and replace the needle on the syringe body. Therefore, it avoids the staff to maintain one position for a long time when changing needles, thus improving work efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of an automated needle changing device for a knitting machine.

[0019] Figure 2 This is a schematic diagram of the installation and disassembly components of an automated needle changing device for a knitting machine.

[0020] Figure 3 This is an exploded view of the installation and disassembly components of an automated needle changing device for a knitting machine.

[0021] Figure 4 This is a schematic diagram of the replacement component structure of an automated needle changing device for a knitting machine.

[0022] Figure 5 This is an exploded view of the replacement component of an automated needle changing device for a knitting machine.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Support frame; 11. Bracket; 12. Support rod; 13. Yarn frame; 14. Fixing rod; 141. Support ring; 142. Slot; 15. Syringe body; 151. Limiting block; 152. Mounting ring; 153. Clamping plate; 21. Fixing frame; 22. First cylinder; 23. Support cylinder; 24. First motor; 25. Rotating shaft; 26. Support plate; 27. Bottom ring; 31. Connecting frame; 32. Top plate; 33. Lead screw; 34. Second motor; 35. Sliding block; 36. Connecting rod; 37. Connecting block; 38. First connector; 39. Deflection rod; 310. Clamping plate; 311. Second connector; 312. Second cylinder. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 -3. This utility model is an automated needle changing device for a knitting machine, including a support frame 1; a bracket 11 is fixedly connected to the outer ring array of the top end of the support frame 1, a support rod 12 is fixedly connected to the top end of the bracket 11, a yarn rack 13 is fixedly installed at the top end of the support rod 12, a support member is provided in the middle of the top end of the support frame 1, a needle cylinder member is provided at the top end of the support member, an installation and disassembly assembly is provided at the bottom end of the support frame 1 and a replacement assembly is provided at the top end of the yarn rack 13.

[0027] like Figure 1 - Figure 4As shown, the installation and disassembly assembly includes a fixing frame 21, which is fixed to the middle of the support frame 1. A first cylinder 22 is fixedly installed at the middle of the top of the fixing frame 21. A support cylinder 23 is fixedly connected to the output end of the first cylinder 22. A first motor 24 is fixedly installed inside the support cylinder 23. A rotating shaft 25 is drivenly connected to the top of the first motor 24. A support plate 26 is fixedly connected to the top of the rotating shaft 25. A bottom ring 27 is fixedly connected to the bottom of the support plate 26 outside the rotating shaft 25. The bottom ring 27 is rotatably connected to the support cylinder 23. The support component includes a fixing rod 14, which is fixed to the bracket 11. On the side closest to the support, a support ring 141 is fixedly connected to the end of the fixing rod 14 away from the bracket 11. The top of the support ring 141 has a ring array of slots 142. The syringe includes a syringe body 15, which is located at the top of the support ring 141. An installation ring 152 is fixedly connected to the middle of the outer wall of the syringe body 15. The installation ring 152 abuts against the support ring 141. A locking plate 153 is fixedly connected to the bottom of the installation ring 152 in a ring array. The locking plate 153 engages with the slots 142. A limiting block 151 is fixedly connected to the bottom of the syringe body 15. The limiting block 151 engages with the top of the support plate 26.

[0028] In this embodiment, during use, the second motor 34 is started to drive the lead screw 33 to rotate. The lead screw 33 drives the slider 35 to move to the top of the syringe body 15. The first cylinder 22 is started to push the support cylinder 23 to rise. The support cylinder 23 drives the support plate 26 to rise, so that the support plate 26 engages with the limiting block 151. Then, the first motor 24 is started, which drives the support plate 26 to rotate. The support plate 26 drives the limiting block 151 to rotate. The limiting block 151 drives the syringe body 15 to rotate. The syringe body 15 drives the mounting ring 152 to rotate. The mounting ring 152 drives the locking plate 153 to rotate out of the locking groove 142. Then, the first cylinder 22 continues to push the support cylinder 23 to move, and the support cylinder 23 pushes the syringe. The main body 15 rises to the top, facilitating disassembly of the syringe body 15. When installing the syringe body 15, it is clamped and fixed by the clamping plate 310. Then, the slider 35 is driven by the lead screw 33 to move the syringe body 15 to the top of the yarn rack 13. Then, the first cylinder 22 is activated to drive the support plate 26 to rise and engage with the limit block 151. Then, the clamping plate 310 separates from the syringe body 15, and the support plate 26 moves down to drive the clamping plate 153 into the clamping slot 142. Then, the first motor 24 is activated to drive the syringe body 15 to rotate, so that the clamping plate 153 engages with the clamping slot 142, completing the installation of the syringe body 15. Then, the first cylinder 22 drives the support plate 26 to move down to its original position.

[0029] like Figure 1 , Figure 4As shown in Figure 5, the replacement component includes a connecting frame 31, which is fixed to both sides of the support frame 1. A top plate 32 is fixedly connected to the top of the connecting frame 31. A lead screw 33 is rotatably connected to the middle of the top plate 32. One end of the lead screw 33 passes through the top plate 32, and a second motor 34 is drivenly connected to the end of the lead screw 33 that passes through it. The second motor 34 is fixedly installed with the top plate 32. A slider 35 is threadedly connected to the end of the lead screw 33 located in the middle of the top plate 32. The slider 35 is slidably connected to the top plate 32, and a connecting rod 36 is fixedly connected to the middle of the bottom end of the slider 35. A connecting block 37 is fixedly connected to the bottom end of the connecting rod 36. First connecting heads 38 are fixedly connected to both sides of the connecting block 37. A deflecting rod 39 is rotatably connected to the middle of the first connecting head 38. A clamping plate 310 is fixedly connected to the end of the deflecting rod 39 away from the first connecting head 38. Two second connecting heads 311 are provided at the top end of the deflecting rod 39. A second cylinder 312 is rotatably connected to the middle of the second connecting head 311. One second connecting head 311 is fixed to both sides of the bottom end of the slider 35, and the other second connecting head 311 is fixed to the middle of the deflecting rod 39.

[0030] In this embodiment, before the syringe body 15 is disassembled, the second motor 34 is started to drive the lead screw 33 to rotate. The lead screw 33 drives the slider 35 to move to the top of the syringe body 15. After the syringe body 15 rises, the second cylinder 312 is started to drive the deflection rod 39 to deflect downward. The deflection rod 39 drives the clamping plate 310 to deflect around the first connector 38, so that the clamping plate 310 clamps the top of the syringe body 15. Then the output end of the first cylinder 22 shortens, the support plate 26 separates from the limit block 151, and then the second motor 34 is started again. The lead screw 33 reverses, and the slider 35 moves back to move the syringe body 15 out, so that the staff can remove the syringe body 15 and replace the needle on the syringe body 15. Therefore, it avoids the staff to maintain one posture for a long time when changing needles, thus improving work efficiency.

[0031] The operation process of this embodiment is as follows: First, during use, the second motor 34 is started to drive the lead screw 33 to rotate. The lead screw 33 drives the slider 35 to move to the top of the syringe body 15. The first cylinder 22 is started to push the support cylinder 23 to rise. The support cylinder 23 drives the support plate 26 to rise, so that the support plate 26 engages with the limiting block 151. Then, the first motor 24 is started, which drives the support plate 26 to rotate. The support plate 26 drives the limiting block 151 to rotate, and the limiting block 151 drives the syringe body 15 to rotate. Rotation causes the syringe body 15 to rotate, which in turn causes the mounting ring 152 to rotate. The mounting ring 152 then rotates the clamping plate 153 out of the slot 142. Subsequently, the first cylinder 22 continues to push the support cylinder 23 to move, which in turn pushes the syringe body 15 to the top, facilitating disassembly of the syringe body 15. After the syringe body 15 rises, the second cylinder 312 is activated, causing the deflection rod 39 to deflect downwards. The deflection rod 39, with the first connector 38 as its axis, drives the clamping plate 310 to deflect, thus causing the clamping plate 310 to deflect the syringe body. The top of the 15 is clamped, then the output end of the first cylinder 22 shortens, the support plate 26 separates from the limit block 151, and then the second motor 34 is started again, the lead screw 33 reverses, and the slider 35 moves back, driving the syringe body 15 to move out, so that the operator can remove the syringe body 15, which is convenient for replacing the needle on the syringe body 15. Therefore, it avoids the operator having to maintain one position for a long time when changing needles, thus improving work efficiency. When installing the syringe body 15, the syringe body 15 is clamped and fixed by the clamping plate 310, and then by the lead screw 33 drives slider 35 to move syringe body 15 to the top of yarn frame 13. Then, the first cylinder 22 is started to drive support plate 26 to rise and engage with limit block 151. Then, clamping plate 310 separates from syringe body 15. Support plate 26 moves down to drive clamping plate 153 into clamping slot 142. Then, the first motor 24 is started to drive syringe body 15 to rotate, so that clamping plate 153 engages with clamping slot 142, completing the installation of syringe body 15. Then, the first cylinder 22 drives support plate 26 to move down to its original position.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automated needle changing device for a knitting machine, comprising a support frame (1); characterized in that: The outer ring array at the top of the support frame (1) is fixedly connected to a bracket (11), the top of the bracket (11) is fixedly connected to a support rod (12), the top of the support rod (12) is fixedly provided with a yarn frame (13), the middle of the top of the support frame (1) is provided with a support member, the top of the support member is provided with a syringe member, the bottom of the support frame (1) is provided with an installation and disassembly assembly, and the top of the yarn frame (13) is provided with a replacement assembly.

2. The automated needle changing device for a knitting machine according to claim 1, characterized in that, The installation and disassembly assembly includes a fixing frame (21), which is fixed in the middle of the support frame (1). A first cylinder (22) is fixedly installed in the middle of the top of the fixing frame (21). A support cylinder (23) is fixedly connected to the output end of the first cylinder (22). A first motor (24) is fixedly installed inside the support cylinder (23). A rotating shaft (25) is driven to the top of the first motor (24). A support plate (26) is fixedly connected to the top of the rotating shaft (25). A bottom ring (27) is fixedly connected to the bottom of the support plate (26) outside the rotating shaft (25). The bottom ring (27) is rotatably connected to the support cylinder (23).

3. The automated needle changing device for a knitting machine according to claim 1, characterized in that, The replacement component includes a connecting frame (31), which is fixed on both sides of the support frame (1). A top plate (32) is fixedly connected to the top of the connecting frame (31). A lead screw (33) is rotatably connected to the middle of the top plate (32). One end of the lead screw (33) passes through the top plate (32). A second motor (34) is connected to the end of the lead screw (33) that passes through it. The second motor (34) is fixedly installed with the top plate (32).

4. The automated needle changing device for a knitting machine according to claim 3, characterized in that, The lead screw (33) is threaded to a slider (35) at one end in the middle of the top plate (32). The slider (35) is slidably connected to the top plate (32). A connecting rod (36) is fixedly connected to the middle of the bottom end of the slider (35). A connecting block (37) is fixedly connected to the bottom end of the connecting rod (36). A first connecting head (38) is fixedly connected to both sides of the connecting block (37). A deflection rod (39) is rotatably connected to the middle of the first connecting head (38). A clamping plate (310) is fixedly connected to the end of the deflection rod (39) away from the first connecting head (38).

5. The automated needle changing device for a knitting machine according to claim 4, characterized in that, The top of the deflection rod (39) is provided with two second connectors (311). The middle part of the second connector (311) is rotatably connected to a second cylinder (312). One second connector (311) is fixed on both sides of the bottom end of the slider (35), and the other second connector (311) is fixed in the middle of the deflection rod (39).

6. The automated needle changing device for a knitting machine according to claim 1, characterized in that, The support includes a fixing rod (14), which is fixed on one side of the bracket (11) that is close to each other. The end of the fixing rod (14) away from the bracket (11) is fixedly connected to a support ring (141), and the top of the support ring (141) has a ring array of slots (142).

7. The automated needle changing device for a knitting machine according to claim 1, characterized in that, The syringe assembly includes a syringe body (15), which is disposed at the top of a support ring (141). An installation ring (152) is fixedly connected to the middle of the outer wall of the syringe body (15). The installation ring (152) abuts against the support ring (141). A retaining plate (153) is fixedly connected to the bottom of the installation ring (152) in an annular array. The retaining plate (153) engages with the retaining groove (142). A limiting block (151) is fixedly connected to the bottom of the syringe body (15). The limiting block (151) engages with the top of the support plate (26).

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