Non-metallic belt continuous production detection device

Abstract

The utility model provides a kind of non-metallic belt continuous production detection device, belong to cable technical field;The utility model is in non-metallic belt broken or complete after belt, return spring changes from compressed state to stretch state, pull rod bottom end can immediately bounce back to the bottom of shell, trigger piece also moves along with pull rod, the sensing area of trigger piece and proximity switch is less than or equal to set distance, generates sensing signal, the signal transmission is to controller, controller output control signal is to alarm device and is alarmed, remind staff non-metallic belt broken or complete, simultaneously, output speed reduction control signal is to corresponding non-metallic belt production machine platform and is reduced, until shutdown, remind operator and connect non-metallic belt in time, reduce the occurrence of quality problem, reduce artificial cost and production cost.

Description

Technical Field

[0001] This utility model belongs to the field of cable technology, and in particular relates to a non-metallic tape continuous production and testing device. Background Technology

[0002] During the production and wrapping of insulation for electric wires and cables, color separation is typically achieved using non-metallic tape (colored tape). The non-metallic tape is placed on a simple support and laid out in the direction of conductor movement, with the operator monitoring the tape's placement. If the non-metallic tape breaks or runs out during production without the operator noticing, the resulting semi-finished product will lack the tape for color differentiation, leading to internal rework. If mistakenly used in the next process, it can potentially render the entire cable unusable, resulting in significant economic losses.

[0003] Manually monitoring the release of non-metallic tape may affect the quality of wires and cables and the efficiency of subsequent installation. Utility Model Content

[0004] The purpose of this invention is to provide a non-metallic strip continuous production detection device to solve the technical problem of untimely detection of strip breakage or incompleteness during the non-metallic strip production process, thereby improving product production quality and efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a non-metallic strip continuous production inspection device, including a housing, a baffle plate fixedly installed inside the housing, a proximity switch fixedly installed on one side of the bottom of the housing, and the top of the proximity switch passing through the baffle plate; a pull rod extends into the housing, passes through the baffle plate, and can move up and down inside the housing;

[0007] A lower fastening nut is connected to the bottom of the pull rod, and a return spring is fitted on the pull rod, which is located between the lower fastening nut and the baffle plate; a hook for hooking a non-metallic strip is provided at the top of the pull rod; a trigger plate is also fixed on the pull rod, which is located on the baffle plate; the trigger plate and the proximity switch can generate a sensing signal within a set distance range;

[0008] The proximity switch is connected to the controller, and the controller is connected to the alarm device. The proximity switch is used to transmit the sensing signal to the controller. After receiving and processing the sensing signal, the controller sends a control signal to the alarm device.

[0009] Furthermore, the baffle is fixedly installed in the middle position inside the shell.

[0010] Furthermore, the baffle plate is provided with a through hole that can accommodate the pull rod, allowing the pull rod to move within the through hole.

[0011] Furthermore, the top of the lever has a J-shaped hook structure.

[0012] Furthermore, the pull rod is set perpendicular to the trigger plate and the baffle plate, respectively.

[0013] Furthermore, the sensing area is located between the baffle and the trigger plate, and faces the trigger plate.

[0014] Furthermore, the trigger plate is clamped and fixed to the pull rod by two fastening caps.

[0015] Furthermore, an opening is provided at the bottom of the housing, through which the proximity switch is fixed to the housing.

[0016] Furthermore, the controller is also connected to the production machine. The controller receives and processes the sensing signals and outputs control signals to the production machine.

[0017] Furthermore, the proximity switch is connected to the controller's input module via a wire.

[0018] The technical solution of this utility model has the following beneficial effects:

[0019] 1. After the non-metallic strip breaks or becomes completely worn, the return spring changes from a compressed state to an extended state. The bottom end of the pull rod can immediately spring back to the bottom of the housing. The trigger plate also moves with the pull rod. When the sensing area between the trigger plate and the proximity switch is less than or equal to the set distance, a sensing signal is generated. This signal is transmitted to the controller, which outputs a control signal to the alarm device to alert the staff that the non-metallic strip has broken or become completely worn. This reminds the operator to connect the non-metallic strip in time, reducing the occurrence of quality problems and lowering labor and production costs.

[0020] 2. After the proximity switch of this utility model generates an induction signal, it triggers the optocoupler circuit of the controller input module through a low-level signal. The controller program responds in real time and executes speed reduction control on the non-metallic strip production machine to prevent the operator from failing to stop the machine in time to replace the non-metallic strip after the strip breaks.

[0021] 3. This utility model controller is also connected to an alarm device. When the non-metallic belt breaks or becomes completely worn out, the controller reads the data and initiates a delay logic to achieve a delayed alarm, preventing false alarms due to factors such as non-metallic belt vibration. The audible and visual alarm can promptly notify staff to check and handle the situation, improving work efficiency and eliminating the need for time-consuming and laborious real-time observation by staff.

[0022] 4. The pull-back spring in this utility model can generate a rebound force opposite to the tension of the non-metallic strip, ensuring that the movable pull rod and metal plate can be driven to trigger the proximity switch after the strip breaks. This makes the device not limited by the installation direction, improves the flexibility of the device installation, and makes the installation simpler. Attached Figure Description

[0023] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0024] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of an embodiment of the present invention, showing the detection device fixed on the upper side of the inlet of the production equipment.

[0026] Explanation of reference numerals in the attached diagram: 1. Pull rod; 2. Upper fastening nut; 3. Trigger plate; 4. Middle fastening nut; 5. Return spring; 6. Lower fastening nut; 7. Proximity switch; 8. Baffle plate; 9. Housing; 10. Non-metallic strip. Detailed Implementation

[0027] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this utility model.

[0029] Where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0030] This utility model discloses a non-metallic strip continuous production testing device, such as... Figure 1As shown, it includes: a pull rod 1, a housing 9, a trigger plate 3, a baffle plate 8, a return spring 5, and a proximity switch 7; the top of the pull rod 1 has a J-shaped hook that can hook a non-metallic strip 10; the bottom of the pull rod 1 passes through the top of the housing 9, the trigger plate 3, and the baffle plate 8 in sequence before contacting the bottom of the housing 9; the trigger plate 3 is fixedly mounted on the pull rod 1, and the baffle plate 8 is fixedly mounted inside the housing 9; the proximity switch 7 is also fixedly mounted on the baffle plate 8, and the proximity switch 7 has a sensing area; a lower fastening cap is provided at the bottom of the pull rod 1, and a return spring 5 is sleeved on the pull rod 1, with the return spring 5 positioned between the lower fastening cap and the... Between the baffles 8; when the pull rod 1 hooks the non-metallic strip 10, the non-metallic strip 10 exerts a pulling force on the pull rod 1, causing the pull rod 1 to move in the direction of the non-metallic strip 10, and the return spring 5 is compressed. At this time, the trigger piece 3 is away from the sensing area of ​​the proximity switch 7, and the proximity switch 7 does not generate a sensing signal; when the pull rod 1 does not hook the non-metallic strip 10, the return spring 5 is not under force and extends freely. At this time, the trigger piece 3 is close to the sensing area of ​​the proximity switch 7, and the proximity switch 7 generates a sensing signal; the proximity switch 7 transmits the sensing signal to the controller, and the controller processes the signal and outputs a control signal to the alarm device.

[0031] In a specific implementation, the trigger piece 3 is made of metal. The trigger piece 3 is clamped and fixed on the pull rod 1 by the upper fastening nut 2 and the middle fastening nut 4. One side of the trigger piece 3 is set opposite to the proximity switch 7.

[0032] In a specific implementation, the controller can be a PLC controller, and the proximity switch 7 is a three-wire proximity switch 7, including a first power line, a second power line, and a signal line, and adopts a DC NPN type proximity switch. Specifically:

[0033] The first power line is typically connected to the positive terminal of a DC power supply, providing the necessary operating voltage for the proximity switch 7 and ensuring the normal operation of its internal circuitry. The sensing element, signal processing circuitry, and other components inside the proximity switch 7 all rely on the electrical energy supplied by the first power line for operation. Only with a stable power supply can the proximity switch 7 detect the approach of an object.

[0034] The second power supply line is connected to the negative terminal of the DC power supply. In circuit layout, it corresponds to the first power supply line and is connected to the negative output terminal of the same DC power supply (such as the 24V DC switching power supply mentioned above). The function of the second power supply line is to form a complete power supply loop together with the first power supply line, allowing current to flow smoothly inside the proximity switch 7. It provides a stable potential reference for the internal circuit of the proximity switch 7, ensuring that the electrical conditions required for the normal operation of the proximity switch 7 are met. It is the necessary path for current to return to the power supply and plays a key role in maintaining a continuous power supply to the proximity switch 7.

[0035] The signal line connects to the input module of the PLC (Programmable Logic Controller). When an object enters the sensing area of ​​the NPN proximity switch 7, the sensing element inside the proximity switch 7 changes. After processing by the internal circuit, the signal line outputs a low-level signal (i.e., a sensing signal). This low-level signal triggers the optocoupler circuit of the PLC input module, and the PLC program responds in real time, outputting corresponding control signals to the alarm device and the non-metallic strip 10 production machine.

[0036] In a specific implementation, the PLC is connected to both the alarm device and the corresponding non-metallic strip 10 production machine. The PLC can receive the sensing signal from the proximity switch 7, and then perform logical operations and control operations according to a preset program to achieve automated control of the alarm device and the corresponding non-metallic strip 10 production machine. It should be noted that the preset program in the PLC is existing technology, and this invention does not improve the relevant program or algorithm. Specifically:

[0037] When a metal object (trigger piece 3) approaches the sensing area above the proximity switch 7 (in this embodiment, the trigger distance is set to be less than or equal to 4mm), the proximity switch 7 acquires the sensing signal and transmits it to the PLC. The PLC acquires and processes the signal, and then transmits a control signal to the alarm device to trigger an alarm. The PLC delays for 2-5 seconds to trigger the strip breakage alarm function to remind the operator to connect the non-metallic strip 10 in time. The PLC outputs a speed reduction control signal to the corresponding non-metallic strip 10 production machine, causing it to execute speed reduction control until it stops. This prevents the operator from failing to stop the machine in time to replace the non-metallic strip 10 after the strip breaks, reducing the occurrence of quality problems and lowering labor and production costs. Specifically, after receiving the signal from the proximity switch 7, the PLC activates the alarm after a 2-5 second delay to prevent false alarms due to vibration of the non-metallic strip 10, or misoperation or production interruption that might result from an immediate alarm.

[0038] In a specific implementation, the trigger piece 3, the proximity switch 7, and the trigger piece 3 are all located inside the housing 9, while the part of the pull rod 1 with the J-shaped hook is outside the housing 9, and the rest is inside the housing 9.

[0039] In a specific implementation, after the pull rod 1 hooks onto the non-metallic strip 10, the non-metallic strip 10 exerts a pulling force on the pull rod 1 towards the non-metallic strip 10. The return spring 5 is fixed within a certain range by the lower fastening nut 6 and the baffle plate 8, and the return spring 5 can generate a rebound force in the opposite direction to the pulling force generated by the non-metallic strip 10. The upper fastening nut 2 and the middle fastening nut 4 fix the trigger plate 3 in the middle of the pull rod 1, and the trigger plate 3 moves synchronously with the pull rod 1.

[0040] Working principle of this utility model:

[0041] This utility model detection device can be installed and used at any angle, as long as the condition that the pull rod 1 hooks onto the non-metallic strip 10 is met. It should be noted that during installation, the distance between the device and the non-metallic strip needs to be planned in advance so that the non-metallic strip can move the pull rod 1 to the set position during normal operation. This embodiment illustrates the working principle of the device by installing it on the upper side of the machine platform at the inlet of the production equipment, with the J-shaped hook of the pull rod 1 facing downwards. Specifically:

[0042] When this utility model is working, such as Figure 2 As shown, the housing 9 is fixed to the upper side of the production equipment inlet with screws. The non-metallic strip 10 is hung in the J-shaped hook of the pull rod 1 so that the J-shaped hook can hook the non-metallic strip 10. At this time, the pull rod 1 moves downward under the action of the non-metallic strip 10. At the same time, the pull rod 1 can drive the trigger plate 3 to move downward synchronously, so that the trigger plate 3 is away from the sensing area of ​​the proximity switch 7, so that the proximity switch 7 does not work (does not generate a sensing signal) and does not trigger the alarm.

[0043] Simultaneously, the pull rod 1 moves the lower fastening nut 6 downwards, compressing the return spring 5. When the non-metallic strip 10 breaks or becomes completely broken, the downward pull of the pull rod 1 disappears. Under the elastic force of the return spring 5, the fastening nut 6 is pushed upwards, and the bottom end of the pull rod 1 springs back to the bottom of the housing 9. Driven by the pull rod 1, the trigger piece 3 moves upwards synchronously and approaches the sensing area of ​​the proximity switch 7. At this time, the proximity switch 7 senses the trigger piece 3 and generates a sensing signal, which is transmitted to the PLC. The PLC receives and processes the signal, and then transmits a control signal to the alarm device to trigger an alarm. The PLC triggers the strip breakage alarm function after a 2-5 second delay to remind the operator to connect the non-metallic strip 10 in time. At the same time, it outputs a speed reduction control signal to the corresponding non-metallic strip 10 production machine to reduce the speed until it stops, reducing the occurrence of quality problems and lowering labor and production costs. The PLC starts the alarm after receiving the signal from the proximity switch 7 after a 2-5 second delay to prevent false alarms due to vibration of the non-metallic strip 10 or possible misoperation or production interruption caused by an immediate alarm.

[0044] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A non-metallic strip continuous production testing device, characterized in that, include: Housing, baffle, proximity switch, and pull rod; The baffle plate is fixedly installed inside the housing, and the proximity switch is fixedly installed on one side of the bottom of the housing; The top of the proximity switch passes through the baffle plate; The pull rod extends into the interior of the housing, passes through the partition plate, and can move up and down within the housing; the bottom end of the pull rod is connected to a lower fastening nut, and a return spring is sleeved on the pull rod, the return spring being positioned between the lower fastening nut and the partition plate; the top end of the pull rod is provided with a hook for hooking a non-metallic strip; a trigger plate is also fixed on the pull rod, the trigger plate being positioned above the partition plate; the trigger plate and the proximity switch can generate a sensing signal within a set distance range; The proximity switch is connected to the controller, and the controller is connected to the alarm device. The proximity switch is used to transmit the sensing signal to the controller. After receiving and processing the sensing signal, the controller sends a control signal to the alarm device.

2. The non-metallic strip continuous production testing device as described in claim 1, characterized in that, The baffle is fixedly installed in the middle position inside the shell.

3. The non-metallic strip continuous production testing device as described in claim 1, characterized in that, The baffle plate is provided with a through hole that can accommodate the pull rod, and the pull rod can move within the through hole.

4. The non-metallic strip continuous production testing device as described in claim 1, characterized in that, The top of the pull rod has a J-shaped hook structure.

5. The non-metallic strip continuous production testing device as described in claim 1, characterized in that, The pull rods are respectively perpendicular to the trigger plate and the baffle.

6. The non-metallic strip continuous production testing device as described in claim 1, characterized in that, The sensing area is located between the baffle and the trigger plate, and faces the trigger plate.

7. The non-metallic strip continuous production testing device as described in claim 1, characterized in that, The trigger plate is clamped and fixed to the pull rod by two fastening caps.

8. The non-metallic strip continuous production inspection device as described in claim 1, characterized in that, The bottom of the housing has an opening, and the proximity switch is fixed to the housing through the opening.

9. The non-metallic strip continuous production testing device as described in claim 1, characterized in that, The controller is also connected to the production machine. The controller receives and processes the sensing signal and outputs a control signal to the production machine.

10. The non-metallic strip continuous production inspection device as described in claim 1, characterized in that, The proximity switch is connected to the input module of the controller via a wire.

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