Steel wire detection mechanism and wire feeding device
By introducing a detection mechanism that uses induction plates and wires to detect the bending state of the steel wire into the wire feeding device, the problem of false alarms caused by wire bending is solved, and the stability and smoothness of wire feeding and return are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-31
AI Technical Summary
In existing wire feeding devices, bending of the steel wire can easily cause false alarms in the detection device, affecting the stability of wire feeding and return.
A steel wire detection mechanism was designed, which detects the bending state of the steel wire through a sensor and a wire. The sensor is set in a sensing groove to realize real-time monitoring and notify the user of the bending of the steel wire, thus avoiding false alarms.
It effectively detects the bending state of the steel wire, avoids false alarms, ensures stable and smooth wire feeding and return, and reduces the risk of stress damage to the steel wire.
Smart Images
Figure CN224063026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of textile equipment, and in particular to a steel wire detection mechanism and a wire feeding device. Background Technology
[0002] When a computerized flat knitting machine is spinning, it is necessary to raise the fabric. Specifically, a wire feeding device feeds steel wires so that the steel wires pass through the needle rings at the top of the needle teeth on the threading plate, thus completing the raising without the need for starting yarn, saving yarn.
[0003] The current system includes a wire feed wheel, a timing belt, a front guide tube, a rear guide tube, and steel wire. The wire feed wheel is driven by a motor. The timing belt is wrapped around the circumference of the wire feed wheel. The steel wire passes through the front guide tube and is wrapped around the wire feed wheel, where it is pressed between the timing belt and the wire feed wheel. The other end of the steel wire passes around the wire feed wheel and exits through the rear guide tube. When the motor starts, the wire feed wheel rotates, and the friction drives the timing belt to move. The wire feed wheel and the timing belt work together to pull the steel wire to achieve wire feeding and return.
[0004] In the aforementioned wire feeding device, if the steel wire is bent, the resistance to the movement of the steel wire increases when it passes through the front and rear guide tubes. This can easily cause false alarms in the detection device at the wire detection end of the textile equipment, and is also detrimental to the normal wire feeding and return. Summary of the Invention
[0005] The purpose of this utility model is to provide a steel wire detection mechanism and a wire feeding device, which can monitor the bending state of the steel wire in real time, remind the user that the steel wire is bent so that the steel wire can be straightened in time, avoid false alarms during wire feeding and return, and at the same time make the wire feeding and return stable and smooth.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] According to a first aspect of the present invention, a steel wire detection mechanism is provided for a wire feeding device, the detection mechanism comprising:
[0008] A front guide tube, wherein an insertion hole is provided through the front guide tube along the axial direction for a steel wire to pass through;
[0009] The sensor body is connected to the front guide tube. The sensor body has a sensing groove that communicates with the insertion hole. The sensing groove is arranged along the axial direction of the insertion hole and is gap-fitted to the steel wire.
[0010] A sensing element made of conductive material is provided, which is arranged parallel to the axial direction of the through hole. The sensing element is connected to the sensor body and disposed on the edge of the sensing groove, with at least a portion of the sensing element extending above the sensing groove.
[0011] A wire, which is electrically connected to the sensing element, with one end of the wire away from the sensing element grounded or connected to a current detection device and / or a voltage detection device.
[0012] Furthermore, two sensing sheets are provided, which are arranged opposite each other and respectively located at the opposite edges of the sensing slots.
[0013] Furthermore, the two sensing elements are inclined in a direction away from the bottom wall of the sensing groove, so that the distance between the two sensing elements gradually decreases in the direction away from the sensing groove.
[0014] Furthermore, the minimum gap between the two sensing plates is smaller than the diameter of the steel wire.
[0015] Furthermore, the sensing element includes an integrally formed connecting portion and a sensing portion. The connecting portion is fixed to the sensor body by screws, and the sensing portion extends toward the middle and upper part of the sensing groove.
[0016] Furthermore, the end of the conductor is connected to a terminal block, which is looped and sleeved around the screw and electrically connected to the screw.
[0017] Furthermore, the detection mechanism also includes a pressure plate, which is pressed onto the side of the connection portion away from the sensor body, and the pressure plate is made of insulating material.
[0018] Furthermore, a guide groove is provided at the end of the sensor body away from the front guide tube. The guide groove is coaxially opposite to the insertion hole and connected to the sensing groove. The guide groove fits into the steel wire.
[0019] Furthermore, a support member is provided at the end of the sensing groove away from the front guide tube. The support member has a support hole, which is coaxially aligned with the guide groove and the insertion hole, and the support hole and the insertion hole are of equal diameter.
[0020] According to a second aspect of the present invention, a wire feeding device is provided, the wire feeding device comprising a base plate, a wire feeding wheel and a detection mechanism as described above, the wire feeding wheel being rotatably disposed on the base plate, a wire passing through a front guide tube of the detection mechanism and then wound around the wire feeding wheel, and the wire passing around the wire feeding wheel and then passing through a rear guide tube.
[0021] In summary, this utility model has the following beneficial effects:
[0022] 1. In this detection mechanism, the steel wire passes through the sensing groove on the sensor body and the insertion hole of the front guide tube, and then winds around the feeding wheel of the wire feeding device. The forward or reverse rotation of the feeding wheel drives the steel wire to move forward or backward to achieve wire feeding. When the steel wire passes through the sensing groove, if the steel wire is not bent, the wire is in close contact with the sensing groove, and the steel wire does not contact the sensing plate on the edge of the sensing groove. When the steel wire bends, the bent wire contacts the sensing plate, causing current to flow between the steel wire, the sensing plate, and the conductor. The conductor can be grounded, allowing current to pass through the electrical circuit of the textile equipment. The circuit connected to the steel wire can detect the grounding status of the steel wire, thereby determining whether the steel wire is connected to the induction plate (i.e., whether the steel wire is bent); alternatively, the wire can be connected to a current detection device and / or a voltage detection device. The textile equipment can connect a current source and / or a voltage source to the steel wire. When the steel wire bends, the open circuit between the steel wire and the induction plate closes, and the current detection device and / or voltage detection device generates a reading. Whether the current detection device and / or voltage detection device generate a reading indicates whether the steel wire is connected to the induction plate (i.e., whether the steel wire is bent). Therefore, this utility model uses the induction plate to detect whether the steel wire is bent in real time, thereby promptly notifying the user to correct the bending state of the steel wire, avoiding false alarms due to excessive resistance during wire feeding / returning, and making the wire feeding and return more stable and smooth.
[0023] 2. Two sensing plates are set, and the two sensing plates are set opposite each other. The distance between the two sensing plates gradually decreases in the opposite direction, so that the steel wire is limited in the sensing groove below the two sensing plates. When the steel wire bends, it can contact the sensing plates in time to detect the bending state. At the same time, when the bending stress of the steel wire is too large, it will squeeze the two sensing plates apart and detach from the sensing groove, thus avoiding damage to the sensing plates due to excessive stress on the steel wire.
[0024] 3. The minimum distance between the two sensing plates is less than the diameter of the steel wire, so that the steel wire will not detach from the sensing plates when it bends, thus increasing the detection rate of the bending condition of the steel wire.
[0025] 4. The sensing part of the sensing element is fixedly connected to the sensor body by screws. The terminal block is ring-shaped and sleeved on the screw and electrically connected to the screw, thereby realizing the electrical connection between the terminal block and the wire and the sensing element. This connection method realizes the physical connection between the sensing element, the wire and the sensor body, and also facilitates the electrical connection between the sensing element and the wire.
[0026] 5. An insulating pressure plate is pressed on the side of the sensor away from the sensor body. The pressure plate covers the sensor sheet, reducing the exposure of the sensor sheet and enhancing the aesthetics of the detection mechanism. At the same time, it reduces the probability of false alarms caused by contact between external conductors and the sensor sheet. Attached Figure Description
[0027] Figure 1This is a three-dimensional structural schematic diagram of a wire feeding device according to an embodiment of the present invention.
[0028] Figure 2 This is a three-dimensional structural diagram of the detection mechanism according to an embodiment of the present invention. Figure 1 .
[0029] Figure 3 This is an exploded structural diagram of the detection mechanism according to an embodiment of the present invention.
[0030] Figure 4 This is a three-dimensional structural diagram of the detection mechanism according to an embodiment of the present invention. Figure 2 .
[0031] In the picture:
[0032] 1000, Wire feeding device; 100, Base plate; 200, Wire feeding wheel; 300, Synchronous belt; 400, Detection mechanism; 410, Front guide tube; 411, Insertion hole; 420, Rear guide tube; 430, Sensor body; 431, Sensing groove; 432, Guide groove; 440, Sensing plate; 441, Connecting part; 442, Sensing part; 450, Screw; 460, Wire; 470, Terminal block; 480, Pressure plate; 490, Support; 491, Support hole; 500, Steel wire. Detailed Implementation
[0033] The present invention will be further described below with reference to the accompanying drawings.
[0034] This embodiment discloses a wire feeding device 1000, referring to... Figure 1 The wire feeding device 1000 includes a base plate 100, a wire feeding wheel 200, a timing belt 300, and a detection mechanism 400. The wire feeding wheel 200 is rotatably mounted on the base plate 100 under the drive of a motor. The timing belt 300 is wound around the wire feeding wheel 200, with its outer ring fitting against the circumference of the wire feeding wheel 200. A steel wire 500 is held between the wire feeding wheel 200 and the timing belt 300, thereby moving the steel wire 500 when the wire feeding wheel 200 rotates forward and backward to achieve wire feeding and return.
[0035] Reference Figure 1 and Figure 2 The testing mechanism 400 includes a front guide tube 410 and a rear guide tube 420 fixedly mounted on a base plate 100, with the front guide tube 410 and rear guide tube 420 arranged alternately. A steel wire 500 passes through the front guide tube 410 and enters between the wire feeding wheel 200 and the synchronous belt 300, wrapping around the periphery of the wire feeding wheel 200. The portion of the steel wire 500 that passes around the wire feeding wheel 200 enters the rear guide tube 420. By setting up the front guide tube 410 and rear guide tube 420, the steel wire 500 can stably enter and exit between the wire feeding wheel 200 and the synchronous belt 300, facilitating wire feeding and return.
[0036] Reference Figure 2 and Figure 3 The detection mechanism 400 is used to detect the bending state of the steel wire 500. In addition to the aforementioned front guide tube 410 and rear guide tube 420, the detection mechanism 400 also includes a sensor body 430 and a sensing plate 440. The sensor body 430 is connected to the end of the front guide tube 410 away from the wire feeding wheel 200, and the sensing plate 440 is connected to the sensor body 430. When the steel wire 500 passes through the sensor body 430, the bending state is detected by the sensor body 430, and then the steel wire 500 passes into the front guide tube 410.
[0037] Reference Figure 2 and Figure 3 The front guide tube 410 has an axially extending insertion hole 411 through which the steel wire 500 passes. The sensor body 430 has a sensing groove 431 that communicates with the insertion hole 411. The sensing groove 431 is arranged axially along the insertion hole 411 and is fitted with the steel wire 500 with a clearance.
[0038] In this embodiment, the insertion hole 411 is clearance-fitted with the steel wire 500 so that the steel wire 500 passes through the front guide tube 410. The gap between the steel wire 500 and the insertion hole 411 is smaller than the gap between the steel wire 500 and the sensing groove 431, so that the steel wire 500 is less likely to come into contact with the inner wall of the sensing groove 431 when it is fitted with the insertion hole 411.
[0039] In this embodiment, the cross-section of the sensing groove 431 is semi-circular, and its upper side (and the side away from the bottom wall of the sensing groove 431) is open to allow the bent steel wire 500 to leave the sensing groove 431 and contact the sensing plate 440. In other embodiments, the sensing groove 431 may also be a groove with a cross-section of a superior arc, inferior arc, triangle, wedge, rectangle or other shapes.
[0040] In this embodiment, the sensing element 440 is made of a conductive material. The sensing element 440 is arranged parallel to the axial direction of the insertion hole 411, and is connected to the sensor body 430 and disposed along the edge of the sensing groove 431; that is, the sensing element 440 is arranged along the length of the sensing groove 431 along its edge. At least a portion of the sensing element 440 extends above the sensing groove 431 to facilitate contact between the steel wire 500 and the sensing element 440 when the wire 500 bends.
[0041] The sensing element 440 is electrically connected to the conductor 460, and the end of the conductor 460 away from the sensing element 440 is grounded or connected to a current detection device and / or a voltage detection device. During wire feeding and return, the steel wire 500 passes through the sensing groove 431. When the steel wire 500 is not bent, it fits loosely in the sensing groove 431, and does not contact the sensing element 440 at the edge of the sensing groove 431. When the steel wire 500 bends, the bent steel wire 500 extends upwards or to the left and right sides of the sensing groove 431, causing the steel wire 500 to contact the sensing plate 440, thereby conducting current between the steel wire 500, the sensing plate 440, and the wire 460. In this state, if the wire 460 is grounded, the grounding status of the steel wire 500 can be detected through the circuit of the textile equipment connected to the steel wire 500, thereby determining whether the steel wire 500 is conducting with the sensing plate 440 (i.e., knowing whether the steel wire 500 is bent). Alternatively, if the wire 460 is connected to a current detection device and / or a voltage detection device, the textile equipment can connect a current source and / or a voltage source to the steel wire 500. When the steel wire 500 bends, the open circuit between the steel wire 500 and the sensing plate 440 closes, and the current detection device and / or voltage detection device generates a reading. Whether the current detection device and / or voltage detection device generates a reading can be used to determine whether the steel wire 500 is conducting with the sensing plate 440 (i.e., knowing whether the steel wire 500 is bent).
[0042] Therefore, this utility model uses the sensing element 440 to detect whether the steel wire 500 is bent in real time, so as to notify the user in time to eliminate the bending state of the steel wire 500, avoid false alarms due to excessive resistance when the steel wire 500 is fed / returned, and make the steel wire 500 and the feeding and returning of the wire more stable and smooth.
[0043] Reference Figure 2 and Figure 3 In this embodiment, two sensing plates 440 are provided, which are arranged opposite to each other and respectively located at the two opposite edges of the sensing groove 431. By providing two sensing plates 440, the probability of the steel wire 500 contacting the sensing plate 440 when bending can be increased, thereby increasing the detection rate of the bending state of the steel wire 500.
[0044] In this embodiment, the two sensing plates 440 are inclined in a direction away from the bottom wall of the sensing groove 431, so that the distance between the two sensing plates 440 gradually decreases in the direction away from the sensing groove 431 (i.e. from bottom to top), thereby limiting the steel wire 500 in the sensing groove 431 below the two sensing plates 440. When the steel wire 500 bends, it can contact the sensing plate 440 in time to detect the bending state.
[0045] In this embodiment, the sensing element 440 is made of an elastic metal material, which allows the two sensing elements 440 to separate from the sensing groove 431 when the bending stress of the steel wire 500 is too high, thus preventing damage to the sensing elements 440 due to excessive stress on the steel wire 500. Furthermore, in other embodiments, the sensing element 440 may also be made of other conductive materials.
[0046] In this embodiment, the minimum gap between the two sensing plates 440 is smaller than the diameter of the steel wire 500, so that the steel wire 500 will definitely come into contact with the sensing plate 440 when it bends and comes out of the sensing groove 431, and will not detach from the sensing plate 440 without contacting it, thereby enhancing the detection rate of the bending condition of the steel wire 500.
[0047] Reference Figure 2 and Figure 3 In this embodiment, the sensing sheet 440 includes an integrally formed connecting portion 441 and a sensing portion 442. Specifically, in this embodiment, the sensing sheet 440 is a sheet-like metal component, which is formed by stamping and bending to create the interconnected connecting portion 441 and sensing portion 442. The connecting portion 441 is connected to the sensor body 430, and the sensing portion 442 extends toward the middle and upper part of the sensing groove 431 (i.e., it is inclined upwards along the direction toward the middle of the sensing groove 431), so that the sensing portions 442 of the two sensing sheets 440 are arranged in a triangular shape above the sensing groove 431.
[0048] In this embodiment, the connecting part 441 is fixed to the sensor body 430 by screws 450, which facilitates the connection and disassembly of the sensing element 440 and the connecting part 441. In other embodiments, the connecting part 441 may also be fixed to the sensor body 430 by means of snap-fit or adhesive.
[0049] In this embodiment, the screw 450 connecting the connecting part 441 and the sensor body 430 is made of metal. The end of the wire 460 is connected to a terminal block 470, which is ring-shaped and sleeved around the screw 450 and electrically connected to it. The inner diameter of the terminal block 470 is larger than the outer diameter of the threaded portion of the screw 450 but smaller than the outer diameter of the screw cap. This allows the terminal block 470 to be positioned between the sensor body 430 and the connecting part 441 when the screw 450 passes through it. The screw 450 and the terminal block 470 enable electrical connection between the terminal block 470, the wire 460, and the sensing element 440. This connection method achieves both physical connection between the sensing element 440, the wire 460, and the sensor body 430, and facilitates electrical connection between the sensing element 440 and the wire 460.
[0050] Reference Figure 2 and Figure 3The detection mechanism 400 also includes a pressure plate 480, which is pressed onto the side of the connecting portion 441 away from the sensor body 430. The pressure plate 480 is made of insulating material. By covering the sensing element 440 with the pressure plate 480, the exposed sensing element 440 is reduced, enhancing the aesthetics of the detection mechanism 400. Simultaneously, it reduces the probability of false alarms caused by contact between external conductors and the sensing element 440.
[0051] Reference Figure 4 A guide groove 432 is provided at the end of the sensor body 430 away from the front guide tube 410. The guide groove 432 is coaxially aligned with the insertion hole 411 and connected to the sensing groove 431. The guide groove 432 fits into the steel wire 500. The guide groove 432 guides the steel wire 500 as it passes through the sensing groove 431 and the insertion hole 411, so that the steel wire 500 can be stably passed through the sensing groove 431 and the insertion hole 411.
[0052] Reference Figure 3 and Figure 4 A support member 490 is fixedly installed inside the end of the sensing groove 431 away from the front guide tube 410. The support member 490 has a support hole 491. The support hole 491 is coaxially aligned with the guide groove 432 and the insertion hole 411, and the support hole 491 and the insertion hole 411 are of equal diameter. After the steel wire 500 is introduced into the detection mechanism 400, the portions of the steel wire 500 at the front and rear ends of the sensing groove 431 respectively fit into the support hole 491 and the insertion hole 411. The steel wire 500 is supported by the coaxiality of the support hole 491 and the insertion hole 411, so that the steel wire 500 is unlikely to cross the axis of the sensing groove 431 and thus contact the sensing plate 440 when it is not bent.
[0053] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A detection mechanism of a steel wire for a wire feeding device (1000), characterized in that, The detection mechanism (400) comprises: a front guide pipe (410) having a penetration hole (411) penetrating through in an axial direction, the penetration hole (411) being used for passing through a steel wire (500); a sensor body (430) connected to the front guide pipe (410), the sensor body (430) being provided with a sensing groove (431) communicating with the penetration hole (411), the sensing groove (431) being arranged in the axial direction of the penetration hole (411), and the sensing groove (431) being fitted to the steel wire (500) in a clearance fit; sensing sheets (440) made of conductive material, the sensing sheets (440) being arranged in parallel to the axial direction of the penetration hole (411), the sensing sheets (440) being connected to the sensor body (430) and arranged at the edges of the sensing groove (431), and at least part of the sensing sheets (440) extending above the sensing groove (431); wires (460) electrically connected to the sensing sheets (440), one end of the wires (460) being grounded or connected to a current detection device and / or a voltage detection device.
2. A steel wire detecting mechanism as claimed in claim 1, characterized in that The sensing sheets (440) are provided in two, the two sensing sheets (440) being oppositely arranged, and the two sensing sheets (440) being arranged at opposite groove edge of the sensing groove (431), respectively.
3. A steel wire detecting mechanism as claimed in claim 2, characterized in that The two sensing sheets (440) are inclined in a direction of approaching each other towards a direction away from the bottom wall of the sensing groove (431), so that the distance between the two sensing sheets (440) gradually decreases in a direction away from the sensing groove (431).
4. A steel wire detecting mechanism as claimed in claim 3, characterized in that The minimum gap between the two sensing sheets (440) is smaller than the diameter of the steel wire (500).
5. The mechanism of claim 1, wherein The sensing sheets (440) comprise an integral connecting part (441) and a sensing part (442), the connecting part (441) being fixed to the sensor body (430) by a screw (450), and the sensing part (442) extending towards the middle and upper part of the sensing groove (431).
6. A steel wire detecting mechanism as claimed in claim 5, characterized in that The end of the wire (460) is connected to a terminal post (470), the terminal post (470) being annular and sleeved outside the screw (450) and electrically connected to the screw (450).
7. A steel wire detecting mechanism as claimed in claim 5, wherein The detection mechanism (400) further comprises a pressing plate (480) arranged at the side of the connecting part (441) away from the sensor body (430), the pressing plate (480) being made of insulating material.
8. A steel wire detecting mechanism as claimed in claim 1, characterized in that The end of the sensor body (430) away from the front guide pipe (410) is provided with a guide groove (432), the guide groove (432) being coaxially and oppositely arranged with the penetration hole (411) and communicating with the sensing groove (431), and the guide groove (432) being fitted to the steel wire (500).
9. A steel wire detecting mechanism as claimed in claim 8, characterized in that The inductive slot (431) is provided with a support (490) away from one end of the front guide pipe (410), the support (490) is provided with a support hole (491), the support hole (491) is coaxially opposite to the guide slot (432) and the penetrating hole (411), and the support hole (491) is provided with the same diameter as the penetrating hole (411).
10. A wire feeder comprising: The wire feeding device (1000) comprises a bottom plate (100), a wire feeding wheel (200) and the detection mechanism (400) as claimed in any one of claims 1-9, the wire feeding wheel (200) is rotatably arranged on the bottom plate (100), the steel wire (500) is wound around the wire feeding wheel (200) after penetrating through the front guide pipe (410) of the detection mechanism (400), and the steel wire (500) penetrates through a rear guide pipe (420) after winding around the wire feeding wheel (200).