Intelligent belt surface frozen material recycling and cleaning device

Abstract

The invention relates to an intelligent belt surface frozen material recycling and cleaning device, and belongs to the technical field of conveying belt cleaning devices, the intelligent belt surface frozen material recycling and cleaning device comprises two rotary rolling rollers, and the two rotary rolling rollers are oppositely arranged and are opposite in rotating direction; a push plate is vertically and slidably arranged in the push box, a rheostat is arranged at the top end of the push plate, and the push plate moves to change the resistance of the rheostat; the detection roller is arranged below the push box; the detection roller extrudes the frozen material to enable the belt to protrude upwards so as to push the push plate to move; the lead screw is vertically arranged, the sliding block is in threaded transmission fit with the lead screw, and the sliding block is rotationally connected with the rotary rolling roller; the lead screw is fixedly connected with the output end of the stepping motor. The control assembly receives the input voltage of the rheostat so as to adjust the rotating direction and the rotating angle of the stepping motor. The device has the effect of automatically adjusting the height of the rotary grinding roller.

Description

Technical Field

[0001] The present application relates to the technical field of conveyor belt cleaning devices, and particularly to an intelligent belt surface frozen material recovery and cleaning device. Background Art

[0002] Under severe cold climate conditions, when a belt conveyor transports high-humidity or viscous materials, low temperature can easily cause the materials to adhere to the belt surface and gradually solidify, forming stubborn lumps. If such lumps are not removed in time, it may cause problems such as belt deviation, increased wear, or overload of the driving motor. In the prior art, usually a vertical pressure is applied to the belt surface through a rotating rolling action to crush and peel off the adhered materials.

[0003] In the existing designs, the installation height of the rotating rolling roller is mostly fixedly set. When encountering large-sized materials with abnormal dimensions or insufficiently crushed, the rigid contact is likely to cause local stress concentration. Especially when dealing with hard plate lumps, there is a lack of buffer space between the rotating rolling roller and the belt, which may cause tearing of the rubber layer on the belt surface or damage to the internal reinforcement layer, and even cause longitudinal scratches in severe cases, significantly shortening the service life of the belt. In addition, the rotating rolling roller with a fixed height is difficult to adapt to the material property differences under different working conditions, and its flexibility is limited.

[0004] In view of the above problems, the prior art mostly adopts the scheme of manually adjusting the height of the rotating rolling roller after stopping the machine, or relieving the impact through passive adaptive mechanisms such as pre-installed spring groups and hydraulic buffers. However, manual adjustment requires interrupting the conveying operation, reducing production efficiency; while the passive buffer device can only respond to the change of material size within a limited range and cannot dynamically adjust the rolling gap according to the real-time working conditions. Especially in the scenarios where the adhesion amount of materials fluctuates frequently or the lump size distribution is uneven, the prior art is difficult to achieve precise height control, resulting in unstable cleaning effect and unable to fundamentally avoid the hidden damage to the equipment caused by intermittent overload. Summary of the Invention

[0005] In order to improve the problem that the height of the rotating rolling roller cannot be spontaneously adjusted, the present application provides an intelligent belt surface frozen material recovery and cleaning device.

[0006] The intelligent belt surface frozen material recovery and cleaning device provided by the present application adopts the following technical solutions:

[0007] An intelligent belt surface frozen material recovery and cleaning device, comprising:

[0008] Rotating rolling rollers, two of the rotating rolling rollers are arranged oppositely and rotate in opposite directions;

[0009] A pushing box, a pushing plate is slidably arranged vertically inside the pushing box, a variable resistor is arranged at the top of the pushing plate, and the pushing plate moves to change the resistance value of the variable resistor;

[0010] The detection roller is arranged below the pushing box; the detection roller makes the belt bulge upward by extruding the frozen material to push the push plate to move;

[0011] The slider and the lead screw, the lead screw is arranged vertically, the slider is in threaded transmission cooperation with the lead screw, and the slider is rotatably connected to the rotary rolling roller;

[0012] The stepping motor, the lead screw is fixedly connected to the output end of the stepping motor;

[0013] The control component, the control component receives the input voltage of the rheostat to adjust the steering and rotation angle of the stepping motor.

[0014] Optionally, a support roller is rotatably arranged above the rotary rolling roller; blades are fixedly arranged on the circumferential side of the rotary rolling roller.

[0015] Optionally, the rheostat includes:

[0016] The resistance groove is opened on the top surface of the pushing box, and the inner wall of the resistance groove is made of insulating material;

[0017] The resistance wire is wound on the inner circumferential surface of the resistance groove;

[0018] The metal rod is fixedly arranged in the resistance groove;

[0019] The sliding piece is fixedly arranged on the top surface of the push plate, the sliding piece is slidably arranged in the resistance groove and is slidably connected to the metal rod; the sliding piece is in electrical contact with the resistance wire and the metal rod respectively.

[0020] Optionally, the control component is a single-chip microcomputer, and the single-chip microcomputer is respectively connected to the stepping motor and the rheostat.

[0021] Optionally, it further includes: the liquid outlet pipe, several liquid outlet pipes are arranged below the rotary rolling roller, and the liquid outlet pipes spray the phase change liquid on the surface of the belt to accelerate the melting of the frozen material;

[0022] The liquid outlet pump is arranged at one end of the liquid outlet pipe.

[0023] Optionally, it further includes: the support disc, which is arranged above the detection roller;

[0024] The support rods, several support rods are slidably arranged in the support disc;

[0025] The contact switch, the liquid outlet pump is connected to the power supply through the contact switch, and the contact switch is arranged between the push plate and the support rod.

[0026] Optionally, the contact switch includes a switch moving piece fixedly arranged at the top end of the support rod and a switch fixed piece fixedly arranged at the bottom surface of the push plate; the switch moving piece is electrically connected to the liquid outlet pump, and the switch fixed piece is electrically connected to the power supply.

[0027] Optionally, a chute is provided on the supporting disc, the supporting rod is slidably arranged in the chute, and the bottom end of the supporting rod contacts the detection roller through a belt; a return spring is fixedly arranged in the supporting disc, and the return spring is used to drive the supporting rod to reset downward.

[0028] Optionally, a heating sheet is fixedly arranged in the rotary rolling roller.

[0029] Optionally, timers are arranged on both the control component and the liquid outlet pump circuit.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. Through the linear relationship between the resistance value of the rheostat and the volume of the frozen material, the single-chip microcomputer controls the stepping motor in real time to adjust the height of the rotary rolling roller. When detecting a large-volume frozen material, the rotary rolling roller automatically lifts to reduce the extrusion deformation of the belt; after the frozen material is broken, the rotary rolling roller resets to the optimal cleaning distance. This mechanism can avoid the belt tearing or the damage of the reinforcing layer caused by rigid contact of the traditional fixed-height rotary rolling roller.

[0032] 2. The combination of mechanical crushing by spiral blades, ice melting by heating sheets, and heat absorption by phase change liquid spraying realizes staged treatment for frozen materials with different hardnesses. After the heating sheet softens the surface layer of the frozen material, the spiral blades are more likely to cut in; the phase change liquid spraying accelerates the disintegration of the internal structure of the frozen material by rapid heat absorption. The cooperation of multiple technologies significantly reduces the extrusion force required by the rotary rolling roller, reduces energy consumption and equipment wear.

[0033] 3. The array of supporting rods evenly distributed along the width of the belt can detect the lateral distribution position of the frozen material, and only trigger the spraying and adjustment actions in the corresponding area. The supporting rod triggers the liquid pump to spray at the corresponding position, avoiding the waste of resources caused by global actions. Description of the Drawings

[0034] Figure 1 It is a schematic structural diagram of the recycling and cleaning device according to the embodiment of the present application.

[0035] Figure 2 It is a schematic structural diagram of the cleaning mechanism according to the embodiment of the present application.

[0036] Figure 3 It is a schematic structural diagram of the rheostat according to the embodiment of the present application.

[0037] Reference numerals: 1, conveyor belt; 2, rotary rolling roller; 3, belt; 4, support roller; 5, spiral blade; 6, detection roller; 7, supporting disc; 8, supporting rod; 9, chute; 10, liquid outlet pipe; 11, pushing box; 12, pushing plate; 13, metal rod; 14, sliding piece; 15, resistance wire; 16, rheostat; 17, supporting plate; 18, nozzle; 19, slider; 20, lead screw; 21, stepping motor; 22, push rod. Detailed implementation manners

[0038] The following further elaborates on this application in conjunction with the Figures 1-3 accompanying drawings for a more detailed description.

[0039] The embodiment of this application discloses an intelligent device for recovering and cleaning frozen materials on the surface of a belt. The intelligent device for recovering and cleaning frozen materials on the surface of a belt includes a cleaning mechanism for removing frozen materials on the surface of the belt 3 and a conveyor belt 1 for recovering the frozen materials. The cleaning mechanism includes two relatively arranged rotary rollers 2, and the two rotary rollers 2 rotate in opposite directions. The belt 3 is arranged above the rotary rollers 2, and the conveyor belt 1 is arranged below the rotary rollers 2. A support roller 4 is rotatably arranged on the other side of the belt 3 above the rotary rollers 2. When the belt 3 moves to the lower path, it passes through the gap between the support roller 4 and the rotary rollers 2. Preferably, the support roller 4 is located between the two rotary rollers 2, and the frozen materials are crushed by the extrusion force between the rotary rollers 2 and the support roller 4; the crushed frozen materials fall on the conveyor belt 1 and move into the recovery area. Preferably, a spiral blade 5 is arranged on the circumferential side of the rotary rollers 2.

[0040] A detection roller 6 is also arranged below the belt 3; along its moving path, the belt 3 first contacts the detection roller 6 and then contacts the rotary rollers 2. A detection component is arranged above the detection roller 6. The detection component includes a support plate 7 and a plurality of support rods 8 slidably arranged in the support plate 7. The support plate 7 is arranged vertically, and a plurality of vertically arranged sliding grooves 9 are formed in the support plate 7 along its length direction; the support rods 8 are slidably arranged in the sliding grooves 9. A return spring is fixed in the sliding groove 9, and the return spring is fixedly connected to the support rod 8 for driving the support rod 8 to reset downward. In the initial state, the bottom ends and the top ends of the plurality of support rods 8 are respectively located at the same horizontal height, and the support rods 8 are located above the belt 3, so that the belt 3 passes through between the detection roller 6 and the bottom ends of the support rods 8. When large-volume frozen materials appear on the surface of the belt 3, the belt 3 bulges upward due to the pressing action between the frozen materials and the detection roller 6; the position where the belt 3 bulges upward contacts the support rod 8 and pushes the support rod 8 to move upward. Preferably, the plurality of support rods 8 are evenly arranged along the width direction of the belt. When the frozen materials are located at a local position on the surface of the belt, the specific position of the frozen materials is detected by abutting against the corresponding support rod 8.

[0041] Above the support plate 7, a pushing box 11 is fixedly arranged, and a push plate 12 is slidably arranged in the pushing box 11. A circular resistance groove is formed at the top end of the pushing box 11; a metal rod 13 is fixedly arranged in the resistance groove and a sliding piece 14 is slidably arranged. The sliding piece 14 is sleeved on the peripheral side of the metal rod 13 and is slidably connected with the metal rod 13. A resistance wire 15 is spirally arranged along the circumferential direction of the inner peripheral surface of the resistance groove; the outer peripheral surface of the sliding piece 14 is in electrical contact with the resistance wire 15, and the inner peripheral surface is in electrical contact with the metal rod 13. A push rod 22 is fixedly arranged on the top surface of the push plate 12; the sliding piece 14 is fixedly connected with the top surface of the push plate 12 through the push rod 22; preferably, the push rod 22 is made of insulating material. Wiring terminals are fixedly connected to both ends of the resistance wire 15 and both ends of the metal rod 13; the inner wall of the resistance groove is insulated. The sliding piece 14, the resistance wire 15, and the metal rod 13 form a variable resistor 16.

[0042] Specifically, after several support rods 8 are pushed upward by the frozen material extrusion, the support rod 8 located above the maximum depth position of the frozen material has the longest moving range compared with other support rods 8. This support rod 8 first contacts the push plate 12 and pushes the push plate 12 to move upward. During the movement of the push plate 12, the sliding piece 14 is moved through the push rod 22, thereby changing the resistance value of the variable resistor 16.

[0043] Support plates 17 for supporting the rotary rolling roller 2 are arranged on both sides of the rotary rolling roller 2. Vertical support grooves are formed on the support plates 17. Sliders 19 are respectively arranged at both ends of the rotary rolling roller 2, and the sliders 19 are rotatably connected with the rotary rolling roller 2; the sliders 19 are vertically slidably arranged in the support grooves. A lead screw 20 is rotatably arranged vertically in the support groove, and the lead screw 20 penetrates through the slider 19 and is in threaded transmission cooperation with the slider 19. A stepping motor 21 extending into the support groove is fixedly arranged at the top end of the support plate 17, and the lead screw 20 is coaxially and fixedly connected with the output shaft of the stepping motor 21. The variable resistor 16 is connected to the stepping motor 21 through a single-chip microcomputer.

[0044] Specifically, the lower wiring terminal of the resistance wire 15 is connected to the ground wire of the single-chip microcomputer; the upper wiring terminal is connected to the power output terminal of the single-chip microcomputer. The lower wiring terminal of the metal rod 13 is connected to the analog input pin of the single-chip microcomputer. When the sliding piece 14 of the variable resistor 16 slides downward, the input voltage of the single-chip microcomputer decreases. Two digital output pins of the single-chip microcomputer are respectively connected to the direction control pin and the pulse control pin of the stepping motor 21 driver. The enable pin of the stepping motor driver is connected to the ground wire of the single-chip microcomputer. Preferably, the stepping motor is connected to an external power supply, and the ground wire of the external power supply is connected to the ground wire of the single-chip microcomputer.

[0045] Specifically, when the sliding piece 14 of the rheostat 16 is located at the lower end of the resistance slot, the output voltage of the rheostat 16 is the smallest; the slider 19 is located at the bottom end of the support slot. When the sliding piece 14 of the rheostat 16 is located at the top end of the resistance slot, the output voltage of the rheostat 16 is the largest, and the slider 19 is located at the top end of the support slot. During the sliding process of the sliding piece 14 of the rheostat 16, the input voltage of the single-chip microcomputer changes continuously. The single-chip microcomputer calculates the step difference between the current position and the target position; the single-chip microcomputer controls the rotation direction of the stepping motor 21 through the direction pin, and controls the number of rotation steps of the stepping motor 21 through the pulse pin to adjust the height of the rotary rolling roller 2.

[0046] It should be noted that the resistance value of the rheostat 16 is matched with the maximum moving range of the support rod 8, that is, the maximum depth of the frozen material determines the instantaneous resistance value of the rheostat 16. The resistance value of the rheostat 16 corresponds to the moving height of the slider 19. After the frozen material contacts the support rod 8, the single-chip microcomputer adjusts the height of the rotary rolling roller 2 according to the instantaneous resistance value of the rheostat 16 to reduce the influence of the deformation of the belt 3 during the process of the rotary rolling roller extruding the frozen material.

[0047] It should be noted that the single-chip microcomputer is built-in with a timer; after the rheostat 16 inputs voltage to the single-chip microcomputer, the timer in the single-chip microcomputer starts and transmits a pulse signal matching the input voltage to the stepping motor 21 after a unit time. The above unit time is the time for the belt 3 to move from the detection roller 6 to the support roller 4.

[0048] A plurality of heating sheets are fixedly arranged along the inner circumferential surface of the rotary rolling roller 2 inside the rotary rolling roller 2; during the rotation of the rotary rolling roller 2, the melting of the frozen material is accelerated by heating.

[0049] A plurality of liquid outlet pipes 10 are fixedly arranged below the two rotary rolling rollers 2; the liquid outlet pipes 10 are evenly distributed along the axial direction of the rotary rolling roller 2. The bottom end of the liquid outlet pipe 10 is connected to a liquid pump through a liquid delivery pipe; the top end of the liquid outlet pipe 10 is fixedly provided with a conical nozzle 18. The liquid outlet pipe is used to spray the phase change liquid on the frozen material, and the phase change liquid rapidly releases heat after being heated to accelerate the melting of the frozen material at a local position. The phase change liquid can be sodium acetate trihydrate.

[0050] A contact switch is arranged between the liquid pump and the power supply, and the contact switch is arranged between the support rod 8 and the push plate 12. A switch moving piece is fixedly arranged at the top end of the support rod 8, and a plurality of switch fixed pieces are fixedly arranged along the length direction at the bottom end of the push plate 12; a switch fixed piece is arranged above each support rod 8. The switch fixed piece is connected to the power supply, the switch moving piece is connected to a single liquid pump, and the arrangement order of the plurality of switch moving pieces is the same as the arrangement order of the liquid pumps, so that after the support rod 8 contacts the push plate 12, the liquid pump at the corresponding position is powered on and inputs the phase change liquid into the liquid outlet pipe 10.

[0051] Specifically, a timer and a relay are provided on the connection circuit of the liquid pump. The output end of the timer is connected to the relay coil, and the liquid pump is connected to the normally closed contact of the relay. After the contact switch is closed, the timer starts timing; after the timer finishes timing, it sends a low-level signal to the relay, and the relay controls the liquid pump to be powered on. The timing time of the timer is the time for the belt 3 to move from the detection roller 6 to the support roller 4.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An intelligent device for recovering and cleaning frozen materials on the surface of a belt, characterized in that, Including: Rotary rolling rollers, two of the rotary rolling rollers are arranged oppositely and rotate in opposite directions; Pushing box, a push plate is slidably arranged vertically inside the pushing box, a variable resistor is arranged at the top end of the push plate, and the push plate moves to change the resistance value of the variable resistor; Detecting roller, arranged below the pushing box; the detecting roller makes the belt bulge upward by extruding the frozen material to push the push plate to move; Slider and lead screw, the lead screw is arranged vertically, the slider is in threaded transmission cooperation with the lead screw, and the slider is rotationally connected to the rotary rolling roller; Stepper motor, the lead screw is fixedly connected to the output end of the stepper motor; Control component, the control component receives the input voltage of the variable resistor to adjust the rotation direction and rotation angle of the stepper motor.

2. The intelligent belt surface frozen material recycling and cleaning device according to claim 1, wherein: A supporting roller is rotatably arranged above the rotary rolling roller; blades are fixedly arranged on the circumferential side of the rotary rolling roller.

3. An intelligent cleaning device for recycling frozen materials on the surface of a belt according to claim 1, characterized in that, The variable resistor includes: Resistance groove, opened on the top surface of the pushing box, and the inner wall of the resistance groove is made of insulating material; Resistance wire, wound on the inner circumferential surface of the resistance groove; Metal rod, fixedly arranged in the resistance groove; Sliding piece, fixedly arranged on the top surface of the push plate, the sliding piece is slidably arranged in the resistance groove and is slidably connected to the metal rod; the sliding piece is in electrical contact with the resistance wire and the metal rod respectively.

4. An intelligent cleaning device for recovering frozen materials on the surface of a belt according to claim 1, characterized in that: The control component is a single-chip microcomputer, and the single-chip microcomputer is respectively connected to the stepper motor and the variable resistor.

5. An intelligent cleaning device for recovering frozen materials on the surface of a belt according to claim 1, characterized in that, It also includes: Liquid outlet pipe, several liquid outlet pipes are arranged below the rotary rolling roller, and the liquid outlet pipes spray phase change liquid onto the surface of the belt to accelerate the melting of the frozen material; Liquid outlet pump, the liquid outlet pump is arranged at one end of the liquid outlet pipe.

6. An intelligent cleaning device for recovering frozen materials on the surface of a belt according to claim 5, characterized in that, It also includes: Supporting disc, arranged above the detecting roller; Supporting rods, several supporting rods are slidably arranged in the supporting disc; Contact switch, the liquid outlet pump is connected to the power supply through the contact switch, and the contact switch is arranged between the push plate and the supporting rod.

7. The intelligent belt surface frozen material recovery and cleaning device according to claim 6, wherein The contact switch includes a switch moving piece fixedly arranged at the top end of the supporting rod and a switch fixed piece fixedly arranged at the bottom surface of the push plate; the switch moving piece is electrically connected to the liquid outlet pump, and the switch fixed piece is electrically connected to the power supply.

8. An intelligent cleaning device for recovering frozen materials on the surface of a belt according to claim 6, characterized in that: A chute is opened on the supporting disc, the supporting rod is slidably arranged in the chute, and the bottom end of the supporting rod contacts the detecting roller through a belt; a return spring is fixedly arranged in the supporting disc, and the return spring is used to drive the supporting rod to reset downward.

9. An intelligent cleaning device for recovering frozen materials on the surface of a belt according to claim 1 or 5, characterized in that: Heating sheets are fixedly arranged inside the rotary rolling roller.

10. The intelligent belt surface frozen material recycling and cleaning device according to claim 6, characterized in that: Timers are arranged on the circuits of the control component and the liquid outlet pump.

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