Wire coil sampling system and method
By designing a wire coil sampling system and using reflective signs and photoelectric switches to automatically identify and fix wire coils on C-type hooks, automated sampling is achieved, solving the problems of manual sampling dependence and high error rates, and improving delivery efficiency. Efficiency and smoothness of production management.
Patent Information
- Application Number
- CN202411593480.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-01-21
AI Technical Summary
In the production of high-speed wires, the existing technology relies on manual sampling, which leads to the inability to submit samples for inspection in a timely and accurate manner, affecting the quality determination and out-of-stock of batch strips.
A wire coil sampling system is designed, including PF transport chain, reflective signage, tagging station, sampling station and controller. By hanging the reflective sign on the C-shaped hook, the photoelectric switch and controller are used to identify the reflective sign, the clamp is fixed on the C-shaped hook, and the sampling device is used to cut and sample the wire coil on the C-shaped hook.
It reduces the dependence of sampling identification on the employees on the job, solves the problem of sampling errors, shortens the sample inspection cycle, improves the efficiency of wire coil delivery, and ensures the smooth progress of production management.
Smart Images
Figure CN119334682A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of wire coil production, and in particular relates to a wire coil sampling system and method. Background Art
[0002] In high-speed wire production, the PF chain transport system is a very important component, which is responsible for smoothly transporting the rolled wire coils from the rolling mill area to the subsequent processes until the final storage or shipment of the finished product. During the transportation process of the PF chain transport system, the wire coils are hung on the C-hook, and the chain drives the C-hook to circulate to realize the transportation of the wire coils.
[0003] When the wire coil is off the line, it is necessary to take samples of the coil hung on the C-hook in time. In the prior art, sampling is usually done manually. Due to the influence of employees' working status, sense of responsibility and information transmission, they often forget to take samples, resulting in the failure to send samples for inspection in a timely and accurate manner, which affects the quality determination and delivery of batches of wire rods. Summary of the invention
[0004] The embodiments of the present invention provide a wire coil sampling system and method, which can reduce the dependence of sampling identification on job employees, fundamentally solve the problem of sampling errors, and improve the warehouse-out efficiency of wire coils.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: in the first aspect, a sampling system for wire coils is provided, including a PF transport chain, a plurality of reflective signs, a hanging station, a sampling station and a controller. The PF transport chain includes a chain transport frame and a plurality of C-type hooks for hanging wire coils. The C-type hooks are hung on the chains of the chain transport frame and can move under the drive of the chains. The hanging station is arranged close to one side of the wire coil production line and is used to hang the reflective signs on the C-type hooks. The chain transport frame is provided with a clamp arranged corresponding to the sampling station. The clamp is used to clamp and fix the C-type hook. The sampling station is provided with a photoelectric switch and a sampling device. The clamp and the photoelectric switch are both electrically connected to the controller. The photoelectric switch can emit a light beam to the reflective sign and receive a light signal reflected by the reflective sign. The controller is used to receive the light signal to identify the reflective sign and generate an action instruction to send to the clamp to stop the C-type hook from moving. The sampling device is used to shear and sample the wire coil on the C-type hook when the C-type hook stops.
[0006] As another embodiment of the present invention, reflective stickers are pasted on both side walls of the reflective sign, a hanging ring is connected to the top of the reflective sign, and a hook for the hanging ring to be hung is connected to the side wall of the C-shaped hook.
[0007] As another embodiment of the present invention, the hook can move toward the side close to the C-shaped hook so that the hanging ring is pressed between the hook and the C-shaped hook. The C-shaped hook is provided with a positioning component for positioning the hook. The positioning component includes a card bean slidably connected to the C-shaped hook along the up and down directions and an elastic member pressed between the C-shaped hook and the card bean. The hook is provided with a groove that matches the arc of the card bean, and the elastic member is used to elastically push the card bean to abut against the groove.
[0008] As another embodiment of the present invention, the hanging station is also provided with an extension rod for hanging the reflective sign on the hook, the upper end of the extension rod is connected to a first U-shaped fork opening upward, the two upper ends of the first U-shaped fork are connected to second U-shaped forks opening upward, the two second U-shaped forks have a horizontally penetrating support groove for supporting the hanging ring, and the outer side of the first U-shaped fork is connected to a pull plate extending downward and used to be inserted between the C-shaped hook and the hook.
[0009] As another embodiment of the present invention, the sampling device includes a hydraulic shear for cutting wire coils and a supporting mechanism for supporting the hydraulic shear, the supporting mechanism includes a lifting assembly supported on the ground, a rotating seat rotatably connected to the lifting assembly, and a support seat hinged on the rotating seat, the hydraulic shear is connected to the support seat via a connecting rod, and the support seat is used to drive the connecting rod and the hydraulic shear to swing vertically.
[0010] As another embodiment of the present invention, a roller with two main axes extending in a horizontal direction is rotatably connected to the support seat, the two rollers are arranged at intervals in the up and down directions, and there is a gap between the two rollers for a connecting rod to pass through, the connecting rod is located in the gap and cooperates with the rollers, the connecting rod can move along its direction, and the connecting rod is provided with two positioning blocks protruding toward the upper and lower sides respectively, the two positioning blocks are arranged at intervals along the direction of the connecting rod and are used to limit the movement range of the connecting rod.
[0011] As another embodiment of the present invention, the lifting assembly includes a base, an inner cylinder, a positioning pin and a lifting lever. The inner cylinder is slidably connected to the base along the up-down direction. A plurality of positioning holes are horizontally penetrated on the inner cylinder. The positioning holes are arranged at intervals along the up-down direction. The positioning pin is used to be inserted into one of the positioning holes and overlap the upper end surface of the base to position the inner cylinder. The middle part of the lifting lever is hinged to the base through a rocker rod. The lever is connected to two extension arms respectively located on both sides of the inner cylinder. The outer ends of the extension arms are provided with supporting grooves for supporting under the positioning pin. The lifting lever is used to lift the positioning pin and the inner cylinder upward with the help of the extension arms when the outer end is pressed down.
[0012] The beneficial effect of the wire coil sampling system provided by the present invention is that compared with the prior art, the wire coil sampling system of the present invention randomly selects wire coils after being rolled up as samples at the hanging station, and hangs a reflective sign on the C-hook where the sample coil is located. When the C-hook drives the sample coil to run to the sampling station, the photoelectric switch on the sampling station receives the light signal reflected by the reflective sign, and then the controller links the clamp located on the chain transport frame to actuate, the clamp closes and clamps the C-hook to stop the C-hook, and then the sampling device is used to cut and sample the sample coil on the C-hook. Through the above system, the dependence of sampling identification on post employees is reduced, the problem of sampling errors is fundamentally solved, the inspection cycle of samples is shortened, the efficiency of wire coil outbound is improved, and the smooth progress of production management is ensured.
[0013] In a second aspect, an embodiment of the present invention further provides a method for sampling a wire coil using a sampling system for a wire coil, the method for sampling a wire coil comprising the following steps: S1. Hang the reflective sign on the C-hook with the wire coil installed at the sign hanging station; S2. The chain transport frame drives the C-hook, reflective sign and wire coil to move synchronously to the sampling station. The reflective sign receives and reflects the light beam emitted by the photoelectric switch. The photoelectric switch receives the light signal and sends it to the controller. S3. The controller receives the optical signal and sends a clamping instruction to the clamp. The clamp starts and clamps the C-hook, and the C-hook stops running. S4. Use the sampling device to cut and sample the wire coil on the C-hook; S5. Remove the reflective sign on the C-hook, and the controller sends a release command to the clamp. The clamp releases the C-hook and the C-hook resumes operation.
[0014] As another embodiment of the wire coil sampling method, the hanging station includes a first hanging station and a second hanging station which are arranged in one-to-one correspondence with the two wire coil production lines; in step S1, at the first hanging station, the reflective sign is hung on the left side of the C-hook, and at the second hanging station, the reflective sign is hung on the right side of the C-hook.
[0015] As another embodiment of the sampling method for wire coils, the sampling stations include a first sampling station and a second sampling station, the photoelectric switch on the first sampling station is set toward the left side of the C-hook, and the photoelectric switch on the second sampling station is set toward the right side of the C-hook; in step S2, the photoelectric switch on the first sampling station is used to detect the reflective sign hung on the first hanging station, and the photoelectric switch on the second sampling station is used to detect the reflective sign hung on the second hanging station. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of a wire coil sampling system provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a reflective sign provided by an embodiment of the present invention; Figure 3 A structural schematic diagram of a reflective sign in a hanging state provided by an embodiment of the present invention; Figure 4 For the embodiment of the present invention Figure 3 A partial cross-sectional structural schematic diagram of FIG. Figure 5 A schematic diagram of the structure of an extension rod provided in an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a sampling device provided in an embodiment of the present invention; Figure 7 A schematic diagram of the front view of the sampling device (excluding hydraulic shears and connecting rods) provided in an embodiment of the present invention.
[0017] In the figure: 1. PF transport chain; 11. C-hook; 12. Chain transport rack; 13. Hook; 131. Groove; 14. Positioning assembly; 141. Card bean; 142. Elastic part; 2. Reflective sign; 21. Hanging ring; 3. First hanging station; 31. Extension rod; 311. First U-shaped fork; 312. Second U-shaped fork; 313. Pull plate; 4. Second hanging station; 5. First sampling station; 51. Photoelectric opening; 6. Second sampling station; 7. Sampling device; 71. Hydraulic shear; 72. Lifting assembly; 721. Base; 722. Inner cylinder; 7221. Positioning hole; 723. Positioning pin; 724. Lever; 725. Rocker; 726. Extension arm; 73. Rotating seat; 74. Support seat; 741. Roller; 75. Connecting rod; 751. Positioning block; 8. Clamp. DETAILED DESCRIPTION
[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0019] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on another element or indirectly on another element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meanings of "multiple" and "several" are two or more, unless otherwise clearly and specifically defined.
[0020] Please also read Figures 1 to 7 , a wire coil sampling system provided by the present invention is now described. The wire coil sampling system includes a PF transport chain 1, a plurality of reflective signs 2, a sign hanging station, a sampling station and a controller. The PF transport chain 1 includes a chain transport frame 12 and a plurality of C-shaped hooks 11 for hanging wire coils. The C-shaped hooks 11 are hung on the chain of the chain transport frame 12 and can move under the drive of the chain. The sign hanging station is set close to one side of the wire coil production line and is used to hang the reflective sign 2 on the C-shaped hook 11. The chain transport frame 12 is provided with a clamp corresponding to the sampling station. The clamp 8 is used to clamp and fix the C-hook 11. A photoelectric switch and a sampling device 7 are provided on the sampling station. The clamp 8 and the photoelectric switch are electrically connected to the controller. The photoelectric switch can emit a light beam to the reflective sign 2 and receive a light signal reflected by the reflective sign 2. The controller is used to receive the light signal to identify the reflective sign 2 and generate an action command to send to the clamp 8 to stop the C-hook 11 from moving. The sampling device 7 is used to shear and sample the wire coil on the C-hook 11 when the C-hook 11 stops.
[0021] Compared with the prior art, the wire coil sampling system provided in this embodiment randomly selects wire coils after being rolled up as samples at the hanging station, and hangs the reflective sign 2 on the C-hook 11 where the sample coil is located. When the C-hook 11 drives the sample coil to run to the sampling station, the photoelectric switch on the sampling station receives the light signal reflected by the reflective sign 2, and then the controller links the clamp 8 located on the chain transport frame 12 to operate, and the clamp 8 closes and clamps the C-hook 11 to stop the C-hook 11, and then the sampling device 7 is used to cut and sample the sample coil on the C-hook 11. Through the above system, the dependence of sampling identification on post employees is reduced, and the problems of sampling errors are fundamentally solved, the inspection cycle of samples is shortened, the efficiency of wire coil outbound is improved, and the smooth progress of production management is ensured.
[0022] In this embodiment, the sign-hanging station is located near the coiling equipment of the wire coil production line. The wire rod is coiled by the coiling equipment to form a wire coil. The wire coil is transported to the PF transport chain 1 by a coil transport trolley and hung on the C-hook 11. At the same time, the wire coil is sampled according to the sampling requirements of the batch of coils at the sign-hanging station, and a reflective sign 2 is hung on the C-hook 11 of the selected wire coil.
[0023] Along the running direction of the C-hook 11, the sampling station and the hanging station are spaced apart. When the C-hook 11 with the reflective sign 2 running to the sampling station, the photoelectric switch 51 receives the light signal reflected by the reflective sign 2, and the clamp 8 is started to fix the C-hook 11. At this time, the sampling device 7 is used to cut a certain length of wire coil according to the sampling requirements to complete the sampling. After the sampling is completed, the reflective sign 2 hanging on the C-hook 11 is removed, and the photoelectric switch cannot receive the light signal. The controller controls the clamp 8 to loosen, so that the C-hook 11 resumes operation.
[0024] Furthermore, a storage rack can be provided on the sign-hanging station for storing the reflective sign 2. Specifically, the storage rack can be a bracket welded from the scraps of steel sections such as channel steel or round tube, which helps to save production costs. The bracket is provided with a plurality of hooks or supporting plates for storing the reflective sign 2. A dust cover can also be provided on the bracket to prevent dust from covering the reflective sign 2 and affecting the reflective effect of the reflective sign 2.
[0025] As a specific implementation of the wire coil sampling system embodiment provided by the present invention, please refer to Figure 2 and Figure 3 Reflective stickers are pasted on both side walls of the reflective sign 2, a hanging ring 21 is connected to the top of the reflective sign 2, and a hook 13 for hanging the hanging ring 21 is connected to the side wall of the C-shaped hook 11.
[0026] In this embodiment, the reflective tape is attached to a thin steel plate, and a hanging ring 21 is connected above the thin steel plate to form a reflective sign 2. Furthermore, the reflective tape is attached to both the front and back sides of the thin steel plate, which can avoid the problem of hanging the reflective sign 2 upside down during the process of hanging the reflective sign 2, thereby avoiding the situation where the photoelectric switch on the sampling station cannot receive the reflected signal of the reflective sign 2 in time.
[0027] As a specific implementation of the wire coil sampling system embodiment provided by the present invention, please refer to Figure 4 The hook 13 can move toward the side close to the C-shaped hook 11 so that the hanging ring 21 is pressed between the hook 13 and the C-shaped hook 11. The C-shaped hook 11 is provided with a positioning component 14 for positioning the hook 13. The positioning component 14 includes a card bean 141 slidably connected to the C-shaped hook 11 along the up and down directions and an elastic member 142 pressed between the C-shaped hook 11 and the card bean 141. The hook 13 is provided with a groove 131 that matches the arc of the card bean 141. The elastic member 142 is used to elastically push the card bean 141 to abut against the groove 131.
[0028] In this embodiment, the hanging ring 21 on the reflective sign 2 has a certain width. By sliding the hook 13 to one side of the C-shaped hook 11, the width of the upper opening of the hook 13 is made smaller than the width of the hanging ring 21, so that the hanging ring 21 is blocked in the hook groove of the hook 13, so as to prevent the hanging ring 21 from jumping out of the hook 13 due to vibration and other problems during transportation, thereby causing the reflective sign 2 to fall. On this basis, when the hook 13 is slid and recovered, the inner wall of the hook groove of the hook 13 presses the hanging ring 21 against the side wall of the C-shaped hook 11, and the hanging ring 21 does not deflect or slip, which increases the stability of the reflective sign 2 during the hanging process and ensures that the photoelectric switch can stably receive the reflected signal of the reflective sign 2.
[0029] Specifically, two grooves 131 are provided from inside to outside on the part where the hook 13 slides with the C-shaped hook 11. When the snap bean 141 on the positioning assembly 14 snaps with the inner groove 131, the hook 13 is in the open state when being pulled out; when the snap bean 141 on the positioning assembly 14 snaps with the outer groove 131, the hook 13 is in the closed state when being recovered. When the reflective sign 2 needs to be hung, the hook 13 needs to be slid outward of the C-shaped hook 11 so that the width of the upper opening of the hook 13 is greater than the width of the hanging ring 21. At this time, under the elastic pushing action of the elastic member 142, the snap bean 141 snaps downward into the inner groove 131, making it easy to hang the hanging ring 21 on the hook groove of the hook 13. Afterwards, the hook 13 is pushed toward one side of the C-shaped hook 11. Since the snap bean 141 and the groove 131 are matched in an arc shape, when the thrust is large, the hook 13 can push the snap bean 141 upward along the arc groove 131, thereby making the hook 13 slide inward. When the hook 13 is pressed against the hanging ring 21, the elastic member 142 pushes the snap bean 141 to snap into the outer groove 131, locking the hook 13 in a closed state, thereby ensuring that the reflective sign 2 is stably hung.
[0030] As a specific implementation of the wire coil sampling system embodiment provided by the present invention, please refer to Figure 4 and Figure 5 The hanging station is also provided with an extension rod 31 for hanging the reflective sign 2 on the hook 13. The upper end of the extension rod 31 is connected to a first U-shaped fork 311 opening upward. The two upper ends of the first U-shaped fork 311 are connected to second U-shaped forks 312 opening upward. The two second U-shaped forks 312 have a horizontally penetrating support groove for supporting the hanging ring 21. The outer side of the first U-shaped fork 311 is connected to a pull plate 313 extending downward and used to be inserted between the C-shaped hook 11 and the hook 13.
[0031] In this embodiment, since the wire coil has just been rolled up and hung on the C-shaped hook 11, the coil maintains a relatively high temperature at this time, which makes it inconvenient to manually hang the reflective sign 2 directly. At this time, the reflective sign 2 can be hung on the C-shaped hook 11 with the help of the extension rod 31, and the staff can stand at a relatively far position to complete the hanging operation to avoid scalding accidents. The extension rod 31 adopts a structure similar to a clothes drying rod, and can be retracted to adjust the length of the extension rod 31, so that the extension rod 31 can adapt to the use environment of different heights. When in use, the hanging ring 21 of the reflective sign 2 is hung on the support groove formed by the openings of the two second U-shaped forks 312, and the reflective sign 2 can be easily hung on the C-shaped hook 11 by lifting the extension rod 31.
[0032] Considering that the hook 13 is locked in position by the positioning assembly 14, a certain push-pull force needs to be applied to the hook 13 to open or close it. At this time, the pull plate 313 on the extension rod 31 is inserted between the hook 13 and the C-shaped hook 11, and the extension rod 31 is moved outward to open the hook 13; after the reflective sign 2 is hung, the outer wall of the pull plate 313 is pressed against the outer wall of the hook 13, and the extension rod 31 is moved toward the side of the C-shaped hook 11, so that the hook 13 can be pushed to slide inward and closed.
[0033] As a specific implementation of the wire coil sampling system embodiment provided by the present invention, please refer to Figure 6 and Figure 7 The sampling device 7 includes a hydraulic shear 71 for cutting the wire coil and a supporting mechanism for supporting the hydraulic shear 71. The supporting mechanism includes a lifting assembly 72 supported on the ground, a rotating seat 73 rotatably connected to the lifting assembly 72, and a supporting seat 74 hinged on the rotating seat 73. The hydraulic shear 71 is connected to the supporting seat 74 through a connecting rod 75. The supporting seat 74 is used to drive the connecting rod 75 and the hydraulic shear 71 to swing vertically.
[0034] It should be noted that in the current sampling process, manual hand-held hydraulic shears 71 are required to cut and sample the wire coil. However, since the temperature of the coil is still high at this time, it is not suitable for workers to get close, making it inconvenient to sample in the first time. In addition, the operation of the manual hand-held hydraulic shears 71 increases the labor intensity of the workers and prolongs the time that the workers are in close contact with the high-temperature coil, which is very likely to cause safety accidents.
[0035] In this embodiment, the hydraulic shear 71 is supported by a support mechanism to perform shearing and sampling operations, which not only reduces the labor intensity of the workers, but also enables the workers to keep a safe distance from the high-temperature coil. Specifically, the hydraulic shear 71 is connected to a connecting rod 75, which is connected to a support seat 74. The support seat 74 is hinged to a rotating seat 73 through a horizontally arranged pin shaft, so that the support seat 74 can drive the connecting rod 75 to swing vertically, thereby realizing the vertical position change of the hydraulic shear 71. At the same time, the rotating seat 73 is connected to the top of the lifting assembly 72 through a horizontal rotation of a bearing, which can drive the support seat 74 to rotate horizontally, thereby realizing the horizontal position change of the hydraulic shear 71. On this basis, the lifting assembly 72 can drive the rotating seat 73 and the support seat 74 to rise or fall, thereby realizing the height change of the support position of the hydraulic shear 71.
[0036] The provision of the supporting mechanism makes the operation mode of the hydraulic shears 71 more flexible, safe and reliable, and improves the practicality of the sampling device 7.
[0037] As a specific implementation of the wire coil sampling system embodiment provided by the present invention, please refer to Figure 7The support seat 74 is rotatably connected to two rollers 741 with two main shafts extending in the horizontal direction. The two rollers 741 are arranged at intervals in the up and down directions, and there is a gap between the two rollers 741 for the connecting rod 75 to pass through. The connecting rod 75 is located in the gap and cooperates with the rollers 741. The connecting rod 75 can move along its direction. The connecting rod 75 is provided with two positioning blocks 751 protruding to the upper and lower sides respectively. The two positioning blocks 751 are arranged at intervals along the direction of the connecting rod 75 to limit the movement range of the connecting rod 75.
[0038] In this embodiment, the connecting rod 75 is a rod with a rectangular cross section, and the roller 741 is a rubber cylindrical member. The connecting rod 75 passes through the gap between the two rollers 741, can stably swing vertically under the support of the rollers 741, and can move along its own direction under the clamping action of the two rollers 741, further increasing the working radius of the hydraulic shear 71, and well adapting to different sampling positions of different coils.
[0039] Specifically, a handle is provided on the other end of the connecting rod 75 opposite to the hydraulic shear 71, and the worker holds the handle to operate the hydraulic shear 71. Two positioning blocks 751 are provided at different positions along the direction of the connecting rod 75, and the height of the positioning block 751 is greater than the gap between the two rollers 741, which is used to limit the movement range of the connecting rod 75 to prevent the connecting rod 75 from moving too far along its direction, which makes it difficult for the worker to hold the hydraulic shear 71 to operate.
[0040] As a specific implementation of the wire coil sampling system embodiment provided by the present invention, please refer to Figure 6 or Figure 7 The lifting assembly 72 includes a base 721, an inner cylinder 722, a positioning pin 723 and a lifting lever 724. The inner cylinder 722 is slidably connected to the base 721 in the up-down direction. A plurality of positioning holes 7221 are horizontally penetrated on the inner cylinder 722. The positioning holes 7221 are arranged at intervals in the up-down direction. The positioning pin 723 is used to be inserted into one of the positioning holes 7221 and overlapped on the upper end surface of the base 721 to position the inner cylinder 722. The middle part of the lifting lever 724 is hinged to the base 721 through a rocker rod 725. The lever 724 is connected to two extension arms 726 respectively located on both sides of the inner cylinder 722. The outer ends of the extension arms 726 are provided with supporting grooves for supporting the bottom of the positioning pin 723. The lifting lever 724 is used to lift the positioning pin 723 and the inner cylinder 722 upward with the help of the extension arms 726 when the outer end is pressed down.
[0041] In this embodiment, the base 721 is provided with an inner cavity extending in the up-down direction, and the inner cylinder 722 is slidably connected in the inner cavity. The inner cylinder 722 is slid up and down, and the positioning pin 723 is inserted into the corresponding positioning hole 7221 at a suitable height. At this time, the two ends of the positioning pin 723 protruding from the side wall of the inner cylinder 722 are respectively overlapped on the upper end surface of the base 721, thereby fixing the inner cylinder 722 on the base 721.
[0042] The setting of the lifting lever 724 can support the positioning pin 723 and drive the inner cylinder 722 to move upward, which facilitates the height adjustment of the lifting assembly 72. Specifically, one end of the swing rod 725 is hinged to the base 721, and the other end is hinged to the middle of the lifting lever 724, which increases the swing range of the lifting lever 724 and can adapt to the angle change of the lifting lever 724 in the process of lifting the inner cylinder 722. On the other hand, the lifting lever 724 is hinged to the base 721, and the lifting lever 724 can be used at any time to adjust the height of the lifting assembly 72. At the same time, when the lifting lever 724 is not in use, the lifting lever 724 can be swung to the outer and lower part of the base 721 to avoid interfering with the sampling operation of the workers.
[0043] When using the lifting lever 724, operate the operating end of the outer end of the lifting lever 724 so that the two extension arms 726 are respectively located on both sides of the inner cylinder 722 and the supporting groove is supported under the positioning pin 723. Press down the operating end, use the hinge point of the rocker arm 725 as a fulcrum, and the extension wall drives the positioning pin 723 to move upward to lift the inner cylinder 722. At the same time, insert another positioning pin 723 into a positioning hole 7221 close to the base 721 to support and fix the inner cylinder 722, and then move the lifting lever 724 out.
[0044] Based on the same inventive concept, an embodiment of the present invention further provides a method for sampling a wire coil using a sampling system for a wire coil. The method for sampling a wire coil comprises the following steps: S1. Hang the reflective sign 2 on the C-hook 11 on which the wire coil is installed at the sign hanging station; S2. The chain transport frame 12 drives the C-hook 11, the reflective sign 2 and the wire coil to move synchronously to the sampling station. The reflective sign 2 receives and reflects the light beam emitted by the photoelectric switch. The photoelectric switch receives the light signal and sends it to the controller. S3. The controller receives the optical signal and sends a clamping instruction to the clamp 8, the clamp 8 starts and clamps the C-hook 11, and the C-hook 11 stops running; S4. Using the sampling device 7 to shear and sample the wire coil on the C-hook 11; S5. Remove the reflective sign 2 on the C-hook 11, and the controller sends a release command to the clamp 8, so that the clamp 8 releases the C-hook 11, and the C-hook 11 resumes operation.
[0045] As a specific implementation of the wire coil sampling method provided by the present invention, please refer to Figures 1 to 3 The hanging stations include a first hanging station 3 and a second hanging station 4 which are arranged one by one corresponding to the two wire coil production lines; in step S1, at the first hanging station 3, the reflective sign 2 is hung on the left side of the C-shaped hook 11, and at the second hanging station 4, the reflective sign 2 is hung on the right side of the C-shaped hook 11.
[0046] It should be noted that, in order to save costs and improve space utilization, two wire coil production lines usually share a set of PF transport chains 1, which easily leads to the problem of double-line mixed samples during manual sampling.
[0047] In this embodiment, in order to sample the selected coils on the two wire coil production lines separately, the hanging station is divided into a first hanging station 3 and a second hanging station 4 to correspond to the hanging operations of the two wire coil production lines respectively, and at the first hanging station 3, the reflective sign 2 is hung on the left side of the C-hook 11, and at the second hanging station 4, the reflective sign 2 is hung on the right side of the C-hook 11. At the same time, the reflective sign 2 is also marked with the words "## line sampling". In this way, when the C-hook 11 runs to the sampling station, it is easy to distinguish and avoid the problem of mixed sampling of double lines.
[0048] As a specific implementation of the wire coil sampling method provided by the present invention, please refer to Figure 1 The sampling stations include a first sampling station 5 and a second sampling station 6. The photoelectric switch on the first sampling station 5 is arranged toward the left side of the C-shaped hook 11, and the photoelectric switch on the second sampling station 6 is arranged toward the right side of the C-shaped hook 11. In step S2, the photoelectric switch on the first sampling station 5 is used to detect the reflective sign 2 hung on the first hanging station 3, and the photoelectric switch on the second sampling station 6 is used to detect the reflective sign 2 hung on the second hanging station 4.
[0049] In this embodiment, the reflective sign 2 is hung on the left side of the C-hook 11 at the first hanging station 3. When the C-hook 11 with the reflective sign 2 hung on the left side runs to the first sampling station 5, the photoelectric switch located on the first sampling station 5 can receive the light signal reflected by the reflective sign 2 on the left side of the C-hook 11, and then the clamp 8 on the first sampling station 5 is started to fix the C-hook 11, and sampling is carried out using the sampling device 7 on the first sampling station 5.
[0050] The reflective sign 2 is hung on the right side of the C-hook 11 at the second hanging station 4. When the C-hook 11 with the reflective sign 2 hung on the right side passes the first sampling station 5, since the photoelectric switch on the first sampling station 5 is set toward the left side of the C-hook 11, the photoelectric switch on the first sampling station 5 cannot receive the reflected signal and cannot identify the reflective sign 2, so the clamp 8 on the first sampling station 5 will not start; when the C-hook 11 runs to the second sampling station 6, the photoelectric switch located on the second sampling station 6 can receive the light signal reflected by the reflective sign 2 on the right side of the C-hook 11, and then the clamp 8 on the second sampling station 6 is started to fix the C-hook 11, and the sampling device 7 on the second sampling station 6 is used for sampling.
[0051] Through the above arrangement, the coil samples on the two wire coil production lines can be effectively distinguished and sampled separately, completely avoiding the problem of double-line mixed samples caused by two production lines sharing one PF transport chain 1, improving the sample inspection rate and ensuring product quality.
[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A wire coil sampling system, characterized in that: It includes a PF transport chain, a plurality of reflective signs, a sign hanging station, a sampling station and a controller. The PF transport chain includes a chain transport frame and a plurality of C-type hooks for hanging wire coils. The C-type hook is hung on the chain of the chain transport frame and can move under the drive of the chain. The sign hanging station is arranged near one side of the wire coil production line and is used to hang the reflective sign on the C-type hook. The chain transport frame is provided with a clamp corresponding to the sampling station, and the clamp is used to clamp and fix the C-type hook. The sampling station is provided with a photoelectric switch and a sampling device. The clamp and the photoelectric switch are both electrically connected to the controller. The photoelectric switch can emit a light beam to the reflective sign and receive a light signal reflected by the reflective sign. The controller is used to receive the light signal to identify the reflective sign, and generate an action instruction to send to the clamp to stop the C-type hook from moving. The sampling device is used to shear and sample the wire coil on the C-type hook when the C-type hook stops.
2. A wire coil sampling system as claimed in claim 1, characterized in that: Reflective stickers are pasted on both side walls of the reflective sign, a hanging ring is connected to the top of the reflective sign, and a hook for hanging the hanging ring is connected to the side wall of the C-shaped hook.
3. A wire coil sampling system as claimed in claim 2, characterized in that: The hook can move toward the side close to the C-shaped hook so that the hanging ring is pressed between the hook and the C-shaped hook. The C-shaped hook is provided with a positioning component for positioning the hook. The positioning component includes a card bean slidably connected to the C-shaped hook along the up and down directions and an elastic member pressed between the C-shaped hook and the card bean. The hook is provided with a groove that matches the arc of the card bean, and the elastic member is used to elastically push the card bean to abut against the groove.
4. A wire coil sampling system as claimed in claim 3, characterized in that: The hanging station is also provided with an extension rod for hanging the reflective sign on the hook, the upper end of the extension rod is connected to a first U-shaped fork opening upward, the two upper ends of the first U-shaped fork are connected to second U-shaped forks opening upward, the two second U-shaped forks have a horizontally penetrating support groove for supporting the hanging ring, the outer side of the first U-shaped fork is connected to a pull plate extending downward and used to be inserted between the C-shaped hook and the hook.
5. A wire coil sampling system as claimed in claim 1, characterized in that: The sampling device includes a hydraulic shear for cutting wire coils and a supporting mechanism for supporting the hydraulic shear, the supporting mechanism includes a lifting assembly supported on the ground, a rotating seat rotatably connected to the lifting assembly, and a supporting seat hinged on the rotating seat, the hydraulic shear is connected to the supporting seat via a connecting rod, and the supporting seat is used to drive the connecting rod and the hydraulic shear to swing vertically.
6. A wire coil sampling system as claimed in claim 5, characterized in that: The support seat is rotatably connected to two rollers with main shafts extending in the horizontal direction. The two rollers are arranged at intervals in the up-down direction, and there is a gap between the two rollers for the connecting rod to pass through. The connecting rod is located in the gap and cooperates with the rollers. The connecting rod can move along its direction. The connecting rod is provided with two positioning blocks protruding from the upper and lower sides respectively. The two positioning blocks are arranged at intervals along the direction of the connecting rod and are used to limit the movement range of the connecting rod.
7. A wire coil sampling system as claimed in claim 5, characterized in that: The lifting assembly includes a base, an inner cylinder, a positioning pin and a lifting lever. The inner cylinder is slidably connected to the base in the up-down direction. A plurality of positioning holes are horizontally penetrated on the inner cylinder, and the positioning holes are arranged at intervals in the up-down direction. The positioning pin is used to be inserted into one of the positioning holes and overlap the upper end surface of the base to position the inner cylinder. The middle part of the lifting lever is hinged to the base through a rocker rod, and the lever is connected to two extension arms respectively located on both sides of the inner cylinder. The outer ends of the extension arms are provided with supporting grooves for supporting under the positioning pin. The lifting lever is used to lift the positioning pin and the inner cylinder upward with the help of the extension arm when the outer end is pressed down.
8. A method for sampling a wire coil, characterized in that: Utilizing the wire coil sampling system according to any one of claims 1 to 7, the wire coil sampling method comprises the following steps: S1. Hang the reflective sign on the C-hook on which the wire coil is installed at the sign hanging station; S2. The chain transport frame drives the C-hook, the reflective sign and the wire coil to synchronously move to the sampling station, the reflective sign receives and reflects the light beam emitted by the photoelectric switch, and the photoelectric switch receives the light signal and sends it to the controller; S3. The controller receives the optical signal and sends a clamping instruction to the clamp, the clamp starts and clamps the C-hook, and the C-hook stops running; S4. using the sampling device to shear and sample the wire coil on the C-hook; S5. The reflective sign on the C-hook is removed, and the controller sends a release instruction to the clamp, and the clamp releases the C-hook, and the C-hook resumes operation.
9. A wire coil sampling method according to claim 8, characterized in that: The sign hanging station includes a first sign hanging station and a second sign hanging station which are arranged in one-to-one correspondence with the two wire coil production lines; in the step S1, at the first sign hanging station, the reflective sign is hung on the left side of the C-shaped hook, and at the second sign hanging station, the reflective sign is hung on the right side of the C-shaped hook.
10. A wire coil sampling method according to claim 9, characterized in that: The sampling station includes a first sampling station and a second sampling station, the photoelectric switch on the first sampling station is set toward the left side of the C-shaped hook, and the photoelectric switch on the second sampling station is set toward the right side of the C-shaped hook; in the step S2, the photoelectric switch on the first sampling station is used to detect the reflective sign hung on the first hanging station, and the photoelectric switch on the second sampling station is used to detect the reflective sign hung on the second hanging station.