CN117775640A

CN117775640A - A deviation switch

Info

Publication number: CN117775640A
Application number: CN202410040104.9A
Authority: CN
Inventors: 安雨; 徐晓亮; 练祖靖
Original assignee: Feizhuo Technology Shanghai Co ltd
Current assignee: Feizhuo Technology Shanghai Co ltd
Priority date: 2024-01-11
Filing date: 2024-01-11
Publication date: 2024-03-29

Abstract

The invention belongs to the technical field of conveyor belts, and particularly relates to a deviation switch, which comprises a bottom beam frame and a fixed box, wherein the fixed box is fixed on the bottom beam frame, a plurality of sub-grooves are formed in the fixed box, the sub-grooves are arranged in a longitudinal row, cameras are fixedly connected in the sub-grooves, a grinding and judging circuit is fixedly connected in the fixed box, the cameras are electrically connected with the grinding and judging circuit, the upper parts of the sub-grooves are fixedly connected with a glass plate, the beam frame is arranged below the conveyor belt, and marked lines are drawn at the bottom of the conveyor belt. The advantages are that: the invention detects by means of image comparison in a mode of being arranged at the bottom of the transmission belt, and does not directly contact with equipment, thereby achieving better detection effect, maintaining stable operation of the equipment and reducing misjudgment.

Description

Off tracking switch

Technical Field

The invention belongs to the technical field of conveyor belts, and particularly relates to a deviation switch.

Background

The off tracking switch is the output that utilizes the principle of singlechip timing to control signal, uses generally more extensively on the transmission band, detects through the side of installing at the transmission band, with transmission band direct contact's mode, this mode not only can consume equipment itself, also can influence the performance because friction is skidding each other simultaneously, simultaneously because set up in the lateral part, therefore partial goods on the transmission band also can cause certain influence to the equipment, causes the false alarm.

For this reason, we propose a off-tracking switch to solve the above-mentioned problem.

Disclosure of Invention

The invention aims to solve the problems and provide the deviation switch capable of keeping stable operation of equipment and reducing erroneous judgment.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a off tracking switch, includes roof beam structure, fixed box is fixed on roof beam structure, be equipped with a plurality of branch grooves in the fixed box, a plurality of branch groove column settings, divide inslot fixedly connected with camera, fixedly connected with in the fixed box is ground and is judged the circuit, a plurality of cameras all with grind and judge circuit electric connection, divide the upper portion fixedly connected with glass board in groove, the roof beam structure sets up in the below of conveyer belt, and the bottom of conveyer belt is drawn and is equipped with the marking.

In the above off-tracking switch, the plurality of fixing boxes are arranged in a column on the bottom beam frame, respectively, and the fixing boxes are aligned with the marking lines.

In the above off-tracking switch, the distance between the fixed boxes is not less than meter.

In the above off tracking switch, fixedly connected with support on the lateral wall of fixed box, rotate on the support and be connected with the gyro wheel, the lateral part fixedly connected with generating set of support, generating set and a plurality of cameras and the circuit electric connection of judging of studying, the gyro wheel offsets the contact with the lower extreme of conveyer belt.

In the above off tracking switch, a rubber skin layer is fixedly connected to the surface of the roller.

In the above off-tracking switch, the rubber skin layer is serrated.

In the above off-tracking switch, a stop block is fixedly connected to the bracket, and the upper end of the stop block is in contact with the rubber skin layer in a propping manner.

In the above off-tracking switch, the stopper is disposed at one side of the roller that rotates downward.

In the above off-tracking switch, the marked line is in a dotted line shape.

In the above off-tracking switch, cross marks are added on the dotted mark line at intervals.

Compared with the prior art, the off tracking switch has the advantages that:

1. according to the invention, through the fixed box, the dividing groove and the camera matching judgment circuit, multiple pattern judgment comparison of the same position is realized by utilizing the cameras in the fixed box, multiple judgment is realized by uniformly setting the fixed boxes, and the fixed boxes are not directly contacted with equipment, so that a good detection effect is achieved, the stable operation of the equipment is maintained, and misjudgment is reduced.

2. According to the invention, through the cooperation of the support, the roller, the generator set and the stop block, the roller is contacted with the bottom of the transmission belt to clean various sundries attached to the bottom of the transmission belt, so that the standard line is kept clean and tidy in a normalized state, and the generator set is used for self-generating electricity, so that the purpose of energy conservation and emission reduction is achieved for the use of electric power.

Drawings

FIG. 1 is a schematic side view of a deviation switch according to the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic view of the other side structure of FIG. 1;

FIG. 4 is a schematic view of the position of the reticle of FIG. 1;

FIG. 5 is a schematic view of the camera head of FIG. 1;

fig. 6 is a schematic view of the mounting structure of the roller of fig. 1.

In the figure, 1 roof beam frame, 2 fixed box, 3 divides groove, 4 cameras, 5 glass board, 6 marking, 7 support, 8 gyro wheels, 9 generating set, 10 dog, 11 cross sign, 12 rubber cortex.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

Examples

The off tracking switch is the output that utilizes the principle of singlechip timing to control signal, generally use comparatively extensively on the transmission band, through installing at the side of transmission band, detect with the mode of transmission band direct contact, this mode not only can consume equipment itself, also can influence the performance because friction is skidding each other simultaneously, simultaneously because set up in the lateral part, therefore partial goods on the transmission band also can cause certain influence to equipment, cause the misinformation, consequently, as shown in fig. 1-6, this scheme has designed an off tracking switch, including roof beam rest 1, fixed box 2 is fixed on roof beam rest 1, roof beam rest 1 is rectangular form, fix on the skeleton of transmission band.

The fixed box 2 is arranged in a column on the bottom beam frame 1 respectively, the fixed box 2 is used for collecting images and is used for researching and judging the gesture of a conveying belt, the beam frame 1 is arranged below the conveying belt, a marking 6 is drawn at the bottom of the conveying belt, the fixed box 2 and the marking 6 are arranged in an aligned mode, the distance between the fixed boxes 2 is not lower than 3 meters, a plurality of sub-grooves 3 are formed in the fixed box 2, the sub-grooves 3 are arranged in a column mode, the cameras 4 are fixedly connected in the sub-grooves 3, the upper parts of the sub-grooves 3 are fixedly connected with glass plates 5 and are used for protecting and shielding, the fixed box 2 is fixedly connected with a research and judging circuit, the cameras 4 are electrically connected with the research and judging circuit, the cameras 4 are used for shooting the running path of the marking 6 and comparing with the standard path in the research and judging circuit, the offset range is set to be positive and negative 1 cm, the offset range is set, the judgment of misjudgment and fluctuation offset is prevented, the cameras 4 are simultaneously used for researching and judging, the sub-grooves 3 are simultaneously, the glass plates 5 are fixedly connected with the glass plates 5, the running and the cameras 4 are used for protecting and judging the position of the whole position is different from the position, or the position of the whole position of the camera is different from the position, or the position of the camera is different from the position.

Because fixed box 2 needs to consume certain electric energy, the motion of conveyer belt does not fully utilize good electric energy, so fixedly connected with support 7 on fixed box 2's lateral wall, rotate on support 7 and be connected with gyro wheel 8, fixedly connected with rubber cortex 12 on the surface of gyro wheel 8, the lateral part fixedly connected with generating set 9 of support 7, rubber cortex 12 is the cockscomb structure, generating set 9 and a plurality of cameras 4 and research judgement circuit electric connection, generating set 9 thereby produces the electric energy through the rotation of gyro wheel 8, and the electric energy can supply again and operate for fixed box 2 etc. so can reach better energy utilization, energy saving and emission reduction's effect.

Because long-term use, the back of conveyer belt has certain debris, consequently can lead to shielding marking 6, fixedly connected with dog 10 on the support 7, the upper end and the rubber cortex 12 of dog 10 offset contact, the up end of dog 10 is convex, dog 10 sets up in the one side of gyro wheel 8 downstream pivoted, gyro wheel 8 and the lower extreme of conveyer belt offset contact, because rubber cortex 12 is the cockscomb structure, consequently can clear away partial debris, clear away rubber cortex 12 through dog 10 simultaneously, reach long-term use's effect.

The marking 6 is in a dotted line shape, cross marks 11 are added to the dotted line shape marking 6 at intervals for increasing marks so as to facilitate the research and judgment, the switch adopts a singlechip control time mode to trigger the generation of signals, and the method is specific: the deviation switch circuit schematic diagram of the research and judgment circuit is divided into 3 parts, namely a power supply circuit, a main control circuit and an output circuit. The power supply circuit part adopts direct current 24V to supply power, the operation of singlechip is supported to internal joint 3.3V step-down chip, the singlechip is connected with switch, the LED lamp, output circuit signal connector, can delay 5S (this delay time is obtained with the time-recorder of procedure adjustment singlechip inside) after the switch is pressed, the LED lamp is lighted, the singlechip outputs a signal and gives output circuit, output circuit can produce a signal of 23V and send to the external world after receiving the signal, the circuit internal connection of output stage has the fuse, when external connection takes place the short circuit, the too big electric current can burn the fuse, cut off the circulation of circuit, play the advantage of protection external equipment safety.

The input voltage DC 24V, the power supply first passes through a varistor. When the voltage across the varistor is less than its threshold, the current through the varistor is very small and the impedance appears infinite, corresponding to an open circuit. When the voltage across the varistor exceeds its threshold, the current through the varistor increases sharply, and the impedance appears to be infinitesimal, corresponding to a short circuit, thereby protecting the following components from damage.

The piezoresistor is followed by a TVS tube which functions similarly to the piezoresistor but with a faster response time. The response time of the piezoresistor is less than or equal to 25ns, and the response time of the TVS tube is generally about 10 ns. The two devices are matched, because the voltage dependent resistor has limited capability of stabilizing surge voltage, and the TVS tube is required to be matched in two stages. And the response time is slow to be placed in the front stage, and the response time is fast to be placed in the rear stage. So that surges that are not absorbed by the front stage can be absorbed by the rear stage. If the response time is fast and slow, the surge voltage which is not absorbed by the front stage is more accumulated when the surge occurs, so that a considerable pressure is caused to the rear stage, and when the bearing capacity of the rear stage circuit is exceeded, the rear stage circuit is damaged, and finally the whole circuit is damaged.

The TVS is followed by a switching diode that takes advantage of the unidirectional conductivity of the diode. When there is a forward current, the current flows and conducts positive electricity. When negatively charged, the diode is not conductive. The anti-reverse connection function of the switch and the isolation can be achieved in the circuit. With this characteristic of the switching diode, it functions to control the passage or shutoff of current in the circuit. The forward resistance of the switching diode is very small, the reverse resistance is very large, and the reverse recovery speed is very high. Followed by a capacitive filter circuit. The capacitor is used for smoothing voltage, and peak voltage in the circuit can be filtered out because the voltage on the capacitor cannot be suddenly changed, so that the whole circuit is more stable. Meanwhile, the capacitor is an energy storage element, fills a short-time voltage gap and maintains voltage stability. U3 is an LDO chip, and 24V is converted into 3.3V to supply power for a circuit. The output voltage needs to be added with a capacitor to absorb the peak voltage value.

Although the terms of the sill frame 1, the fixing case 2, the sub-groove 3, the camera 4, the glass plate 5, the reticle 6, the bracket 7, the roller 8, the generator set 9, the stopper 10, the cross mark 11, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.

Claims

1. The utility model provides a off tracking switch, its characterized in that, including roof beam structure (1), fixed box (2) are fixed on roof beam structure (1), be equipped with a plurality of branch grooves (3) in fixed box (2), a plurality of branch grooves (3) column setting, divide fixedly connected with camera (4) in groove (3), fixedly connected with in fixed box (2) is studied and is judged the circuit, a plurality of cameras (4) all with research and judge circuit electric connection, divide upper portion fixedly connected with glass board (5) of groove (3), roof beam structure (1) set up in the below of conveyer belt, the bottom of conveyer belt is drawn and is equipped with marking (6).

2. The off-tracking switch according to claim 1, wherein a plurality of the fixing boxes (2) are provided, the plurality of fixing boxes (2) are respectively arranged in a column on the bottom beam frame (1), and the fixing boxes (2) are aligned with the marking lines (6).

3. A deviation switch according to claim 2, characterized in that the distance between the said fixed boxes (2) is not less than 3 meters.

4. The off tracking switch according to claim 1, wherein a bracket (7) is fixedly connected to the side wall of the fixed box (2), a roller (8) is rotatably connected to the bracket (7), a generator set (9) is fixedly connected to the side portion of the bracket (7), the generator set (9) is electrically connected with the cameras (4) and the studying and judging circuit, and the roller (8) is in abutting contact with the lower end of the conveying belt.

5. The off-tracking switch of claim 4, wherein a rubber skin (12) is fixedly attached to the surface of the roller (8).

6. The off-tracking switch of claim 5 wherein said rubber skin (12) is serrated.

7. The off-tracking switch according to claim 5, wherein a stop block (10) is fixedly connected to the bracket (7), and the upper end of the stop block (10) is abutted against the rubber skin layer (12).

8. The off-tracking switch according to claim 7, wherein the upper end surface of the stopper (10) is in the shape of a circular arc, and the stopper (10) is disposed on the side of the roller (8) that rotates downward.

9. The off-tracking switch according to claim 1, characterized in that the marking (6) is in the form of a dashed line.

10. The off-tracking switch of claim 9, wherein cross marks (11) are added to the dashed line (6) at intervals.