A control device for a film edge material crusher

Abstract

The utility model discloses a control device for a film edge material crusher, comprising: a mode switching switch, a control module, an edge material feeder and a powder collection box. A high material level detector is provided on the top of the powder collection box, and the high material level detector detects the powder accumulated on the top of the powder collection box, and outputs a high material level signal with a delay, and the mode switching switch includes a maintenance mode gear and an automatic mode gear. When the mode switching switch is in the automatic mode gear, the control module receives the high material level signal, outputs a first stop signal to the edge material feeder, and stops the edge material feeder from running. The control module also outputs a delayed output second stop signal to the main crusher, and stops the main crusher from running with a delay, thereby ensuring the normal operation of the main crusher and preventing the cutting blade from being blocked or a safety accident from occurring. The present application provides a control device that is easy to maintain, low-cost, and safe, reduces the failure rate, improves the efficiency of edge material crushing, and improves production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of film production equipment, in particular to a control device for a film edge material crusher. Background Art

[0002] BOPP film often produces excess scraps and waste film during the slitting process. If these clean scraps are not fully recycled, it will increase production costs and cause a huge waste of raw materials. Therefore, recycling devices such as scrap crushers are required.

[0003] In the prior art, the crushing process is as follows: the film scraps are neatly placed on the unwinding rack, and then manually gathered into a bundle. Driven by the feed roller, the scraps are sent to the crusher, and the high-speed rotating cutter in the crusher will cut and crush the film into powder. The crushed film powder will fall into the powder collection box below, and then the powder in the box will be sent back to the production line, mixed with new granules, and re-extruded to produce film.

[0004] However, in actual production, when the film breaking signal of the production line is triggered, the exhaust fan of the main crushing and side material hopper will stop, and the negative pressure of the vacuum suction pipe is insufficient, so the generated powder cannot be sucked away in time. If the feeding motor is not stopped in time, the film will continue to break. When the powder collection box under the crusher blade is full, the newly entered film will be crushed by the blade, and the powder cannot fall down to the powder collection box below. The cutting blade is still rotating at high speed, and the heat generated by friction will cause the powder to agglomerate. The final result is that the entire cutting blade is completely blocked. This result often requires the staff to spend a long time to clean it up and restart the machine, which will seriously affect the efficiency of raw material recovery. Utility Model Content

[0005] The purpose of the utility model is to provide a control device for a film edge material crusher to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0006] The utility model solves the technical problem by providing a control device for a film edge material crusher, wherein the film edge material crusher comprises a main crusher, and the control device comprises a mode switching switch, a control module, an edge material feeder and a powder material collecting box;

[0007] A high material level detector is provided on the top of the powder collection box, and the high material level detector is used to detect the powder accumulated on the top of the powder collection box and output a high material level signal with a delayed delay. The mode switching switch and the high material level detector are both connected to the input end of the control module, and the mode switching switch includes a maintenance mode gear and an automatic mode gear;

[0008] The output end of the control module is connected to the side material feeder and the main crusher respectively. When the mode switching switch is in the automatic mode position, the control module receives the high material level signal and outputs a first stop signal to the side material feeder to stop the side material feeder. The control module also outputs a delayed second stop signal to the main crusher to delay the main crusher from stopping.

[0009] Further, the edge material feeder comprises: a feed motor, a frequency converter and a potentiometer;

[0010] The potentiometer is connected to a first input terminal of the frequency converter, the feeding motor is connected to a first output terminal of the frequency converter, and the second output terminal of the frequency converter is connected to an input terminal of the control module.

[0011] Further, the edge material feeder further comprises: a drive repeater;

[0012] The drive relay is connected to the output end of the control module and the second input end of the frequency converter respectively.

[0013] Furthermore, a control device for a film edge material crusher further includes: a travel switch;

[0014] The travel switch is arranged on the cover of the main crusher, and is connected to the input end of the control module. The travel switch is used to detect the opening of the cover of the main crusher, and output an in-position signal to the control module, so that the control module outputs a first stop signal to the main crusher.

[0015] Furthermore, a control device for a film edge material crusher further includes: a cooling fan;

[0016] The cooling fan is connected to the side material feeder, and the cooling fan is connected to the output end of the control module. The cooling fan is used to cool down the running main crusher.

[0017] Furthermore, a control device for a film edge material crusher further includes: an emergency stop button;

[0018] The emergency stop button is connected to the input end of the control module, and is used to respond to a user trigger instruction and output an emergency stop signal to the control module, so that the control module outputs a first stop signal to the main crusher and the side material feeder.

[0019] Further, the main pulverizer includes: a pulverizing motor, a driving circuit and a thermal relay;

[0020] One end of the pulverizing motor is connected to the thermal relay, the driving circuit is respectively connected to the two ends of the pulverizing motor, the driving circuit is connected to the output end of the control module, and the thermal relay is connected to the input end of the control module.

[0021] Further, the driving circuit includes: a main contactor, a star contactor and a delta contactor;

[0022] The main contactor is connected to one end of the pulverizing motor through a thermal relay, the delta contactor is connected to both ends of the pulverizing motor, and the star contactor is connected to the other end of the pulverizing motor.

[0023] Furthermore, a control device for a film edge material crusher further includes: a first indicator light and a second indicator light;

[0024] The first indicator light is connected to the main contactor, and is used to display the working status of the main crusher; the second indicator light is connected to the drive repeater, and is used to display the working status of the side material feeder, wherein the working status includes a start status and a pause status.

[0025] Furthermore, the control module includes: a SMART PLC controller.

[0026] The beneficial effects of the utility model are as follows: the collected powder is detected by a high material level detector, and a high material level signal is output with a delay, so as to avoid the frequent false triggering of the high material level detector due to other factors such as the powder falling process, which affects the accurate judgment of the current material level. The automatic mode and maintenance mode of the control device are switched by the mode switching switch, and the side material crusher is regulated by the control module to improve the intelligence of the side material crusher. When the mode switching switch is in the automatic mode gear, the control module controls the main crusher to stop working with a delay according to the high material level signal to ensure the normal operation of the main crusher, and controls the side material feeder to stop working immediately to prevent the cutting blade from being blocked or a safety accident from occurring. The present application provides a control device that is easy to maintain, low-cost, and safe, which ensures the long-term and efficient operation of the side material crusher, reduces the failure rate, improves the efficiency of side material crushing, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a partial circuit diagram of a control device for a film edge material crusher provided by an embodiment of the utility model;

[0028] Figure 2 It is a partial circuit diagram of a control device of a film edge material crusher provided by another embodiment of the utility model;

[0029] Figure 3 The utility model is a partial circuit diagram of a cooling fan of a control device of a film edge material crusher provided in one embodiment.

[0030] Figure markings: 100, control module, 200, mode switching switch, 300, side material feeder, 310, feeding motor, 320, frequency converter, 330, potentiometer, KA1, drive relay, 400, main crusher, 410, crushing motor, FR1, thermal relay, KM1, main contactor, KM3, star contactor, KM2, delta contactor, 500, travel switch, 600, cooling fan, 700, emergency stop button, 800, first indicator light, 810 second indicator light. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application 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 application and are not used to limit the present application.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0033] It should be noted that although the functional modules are divided in the system diagram, in some cases, the modules can be divided differently from those in the system. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0034] Reference Figure 1 and Figure 3 In some embodiments of the present invention, the film edge material crusher includes: a main crusher 400, a belt, a cutting blade and a feed roller, and the control device of the film edge material crusher includes: a control module 100, a mode switching switch 200, a edge material feeder 300 and a powder collection box.

[0035] The powder collection box is used to collect film powder to form a powder pile. A high material level detector is installed on the top of the powder collection box. A vacuum suction duct is connected to one side of the bottom of the powder collection box. A solenoid valve is provided on the vacuum suction duct. By opening the solenoid valve of the vacuum suction duct, the powder will be sucked away and transmitted to the production line under the action of negative pressure.

[0036] The high material level detector is electrically connected to the input end of the control module 100 . The high material level detector is used to detect the powder accumulated on the top of the powder collection box and output a high material level signal with a delay.

[0037] That is to say, the high material level detector detects the powder height of the powder collecting box. When the accumulated powder reaches the top of the powder collecting box, it is considered that the powder accumulation has reached a high level, and the high material level detector delays outputting a high material level signal.

[0038] In this embodiment, since the film powder crushed by the main crusher 400 will fall to the powder collection box below, it is necessary to prevent the high material level detector from being frequently mistriggered due to other factors such as the powder falling process, thereby affecting the accurate judgment of the current material level. Therefore, there is a delay when the high material level detector triggers the output and cancels the trigger, and the high material level signal is output or the high material level signal is canceled after the delay. Among them, the delay time of the high material level detector can be set to 5 seconds, or it can be set to other time values ​​according to actual needs. In this embodiment, the delay time setting of the high material level detector is not limited.

[0039] The mode switching switch 200 is electrically connected to the input end of the control module 100. The mode switching switch 200 includes a maintenance mode gear and an automatic mode gear. The mode switching switch 200 is used to switch the automatic mode and the maintenance mode of the control device of the present application. That is, when the mode switching switch 200 is in the maintenance mode gear, the control module 100 is regulated in the maintenance mode so that the control device runs the maintenance mode; when the mode switching switch 200 is in the automatic mode gear, the control module 100 is regulated in the automatic mode so that the control device runs the automatic mode.

[0040] The output end of the control module 100 is electrically connected to the side material feeder 300, and the output end of the control module 100 is also electrically connected to the main crusher 400. When the mode switching switch 200 is in the automatic mode gear, the control module 100 receives the delayed output high material level signal, and the control module 100 outputs the first stop signal to the side material feeder 300 so that the side material feeder 300 can stop immediately. The control module 100 also delays the output of the second stop signal to the main crusher 400 so that the main crusher 400 can stop with a delay.

[0041] The control module 100 includes: a SMART PLC controller. In this embodiment, the delay stop time of the main crusher 400 can be set to 20 seconds, or can be set to other time values ​​according to actual needs. In this embodiment, the delay stop time setting of the main crusher 400 is not limited.

[0042] The automatic mode and maintenance mode of the control device are switched through the mode switching switch 200, and the control module 100 is used to control the side material crusher to improve the intelligence of the side material crusher. When the mode switching switch 200 is switched to the automatic mode gear, the control module 100 controls the main crusher 400 to delay stopping according to the high material level signal to ensure the normal operation of the main crusher 400, and controls the side material feeder 300 to stop working immediately to prevent the cutting blade from being blocked or a safety accident from occurring. The present application provides a control device that is easy to maintain, low-cost, and safe, which ensures the long-term and efficient operation of the side material crusher, reduces the failure rate, improves the efficiency of side material crushing, and improves production efficiency.

[0043] Reference Figure 1 and Figure 3 In some embodiments of the present invention, the edge material feeder 300 includes: a feeding motor 310 , a frequency converter 320 , a driving relay KA1 and a potentiometer 330 .

[0044] The potentiometer 330 is electrically connected to the first input terminal of the frequency converter 320 , the drive relay KA1 is connected to the second input terminal of the frequency converter 320 , the feed motor 310 is electrically connected to the first output terminal of the frequency converter 320 , and the second output terminal of the frequency converter 320 is electrically connected to the input terminal of the control module 100 .

[0045] The frequency converter 320 includes a frequency conversion main circuit and a frequency conversion control circuit.

[0046] The potentiometer 330 is electrically connected to the analog input terminal of the frequency conversion control circuit. The potentiometer 330 is used to respond to user control instructions and control the driving frequency of the frequency converter 320 according to the user control instructions to adjust the running speed of the feeding motor 310 and manually adjust the feeding amount of the film. The first input terminal can be the analog quantity of the frequency conversion control circuit.

[0047] The coil of the driving relay KA1 is electrically connected to the control module 100, and the first switch of the driving relay KA1 is electrically connected to the operation input terminal of the frequency conversion control circuit. The driving relay KA1 is used to receive the control signal of the control module 100, control the start and stop of the feeding motor 310, so as to realize the start and stop control of the side material feeder 300. Among them, the second input terminal can be the operation input terminal of the frequency conversion control circuit.

[0048] The drive output end of the frequency conversion main circuit is electrically connected to the feed motor 310, and the frequency conversion main circuit controls the feed motor 310 to operate according to the drive frequency.

[0049] The relay output end of the frequency conversion control circuit is electrically connected to the control module 100. When the frequency converter 320 fails, the relay output end of the frequency conversion control circuit outputs the frequency converter 320 fault signal to the control module 100. The control module 100 outputs a first stop signal according to the frequency converter 320 fault signal, controls the first switch of the driving relay KA1 to be disconnected, and controls the feed motor 310 to stop, so that the side material feeder 300 can stop immediately, which is convenient for maintenance personnel to repair. Among them, the second output end can be the relay output end of the frequency conversion control circuit.

[0050] In this embodiment, when the mode switching switch 200 is in the maintenance mode gear position, the side material feeder 300 can be started and stopped by manually triggering the start and stop button of the side material feeder 300 .

[0051] When the mode switching switch 200 is in the automatic mode gear, the control module 100 drives the main crusher 400 and the production line to operate normally, and then the control module 100 drives the side material feeder 300 to start; when the control module 100 receives a high material level signal, a main crusher 400 stop operation signal or an external input film breaking signal, the control module 100 outputs a first stop signal, controls the first switch of the drive relay KA1 to be disconnected, and controls the feed motor 310 to stop, so that the side material feeder 300 can stop immediately, thereby improving the safety of the production line.

[0052] No matter which mode the mode switch 200 is in, when the mode switch 200 switches modes, the emergency stop button 700 is pressed, or the frequency converter 320 fails, the control module 100 outputs a first stop signal, controls the first switch of the drive relay KA1 to be disconnected, and controls the feed motor 310 to stop, so that the side material feeder 300 can stop immediately, thereby improving the safety of the production line. The side material feeder 300 can be restarted only after the staff manually confirms that it is correct and resets it.

[0053] In the scheme of the above-mentioned embodiment, the present application controls the start and stop of the side material feeder 300 through the frequency converter 320 and the running speed of the side material feeder 300 through the potentiometer 330 according to different modes, and manually controls the feed amount, thereby realizing automatic control of the side material feeder 300, reducing the failure rate of the side material feeder 300, improving the crushing efficiency and production efficiency, and facilitating maintenance by maintenance personnel.

[0054] Reference Figures 1 to 3 In some embodiments of the present invention, the control device further includes: a travel switch 500, a cooling fan 600 and an emergency stop button 700.

[0055] The travel switch 500 is installed on the cover of the main pulverizer 400, and the travel switch 500 is electrically connected to the input end of the control module 100. The travel switch 500 is used to detect the movement of the cover of the main pulverizer 400, so as to detect the opening of the cover, and output an in-position signal to the control module 100. In other words, the travel switch 500 detects whether the cover of the main pulverizer 400 moves, and when it moves to the open position, it is considered that the cover is opened, and when it reaches the open position, the travel switch 500 outputs an in-position signal.

[0056] In this embodiment, the control module 100 receives the in-place signal and outputs the first stop signal to the main crusher 400, and the main crusher 400 stops running immediately. The control module 100 can also output the first stop signal to the side material feeder 300, and the side material feeder 300 can stop immediately, thereby preventing the main crusher 400 from accidentally opening the cover during operation, causing a safety accident.

[0057] The cooling fan 600 is electrically connected to the side material feeder 300, and the cooling fan 600 is electrically connected to the output end of the control module 100. The cooling fan 600 cools down the running main crusher 400, and the cooling fan 600 can also cool down the side material feeder 300. The main crusher 400 is cooled by the cooling fan 600 to prevent the cutting blade from rotating at a high speed continuously, and the heat generated by friction will cause the powder to agglomerate.

[0058] In this embodiment, the cooling fan 600 operates in the same state as the side material feeder 300, that is, the cooling fan 600 follows the side material feeder 300 and is turned on and off at the same time. For example: the control module 100 outputs a first stop signal to the side material feeder 300, and the side material feeder 300 stops running immediately. The control module 100 also outputs a first stop signal to the cooling fan 600, and the cooling fan 600 stops running immediately. When the mode switching switch 200 is in the automatic mode gear position, after the control module 100 drives the main crusher 400 and the production line to operate normally, the control module 100 drives the side material feeder 300 to start, and the cooling fan 600 starts following the side material feeder 300.

[0059] The emergency stop button 700 is electrically connected to the input end of the control module 100 . When the user triggers the emergency stop button 700 , the emergency stop button 700 responds to the user's triggering instruction and outputs an emergency stop signal to the control module 100 .

[0060] The control module 100 receives the emergency stop signal and outputs a first stop signal to the main crusher 400 and the side material feeder 300, and the main crusher 400 and the side material feeder 300 stop running immediately. Correspondingly, the cooling fan 600 also stops running immediately.

[0061] Reference Figures 1 to 3In some embodiments of the present invention, the main pulverizer 400 includes: a pulverizing motor 410, a driving circuit and a thermal relay FR1.

[0062] One end of the crushing motor 410 is electrically connected to the thermal relay FR1, both ends of the crushing motor 410 are electrically connected to the drive circuit, the drive circuit is electrically connected to the output end of the control module 100, the thermal relay FR1 is electrically connected to the drive circuit, and the thermal relay FR1 is electrically connected to the input end of the control module 100.

[0063] The drive circuit includes: a main contactor KM1, a star contactor KM3 and a delta contactor KM2.

[0064] The main contactor KM1 is electrically connected to one end of the pulverizing motor 410 , the star contactor KM3 is electrically connected to the other end of the pulverizing motor 410 , and the delta contactor KM2 is electrically connected to both ends of the pulverizing motor 410 .

[0065] In this embodiment, when the mode switch 200 is in the maintenance mode gear, the main crusher 400 can be started and stopped by manually triggering the start and stop button of the main crusher 400. The main crusher 400 is started in a star-delta conversion mode through the main contactor KM1, the star contactor KM3 and the delta contactor KM2. Through the stop button of the main crusher 400, the control module 100 outputs a first stop signal to the main crusher 400, and the main crusher 400 stops immediately.

[0066] When the mode switching switch 200 is in the automatic mode gear, the control module 100 drives the main crusher 400 and drives the production line to operate normally in accordance with the star-delta conversion method, and then the control module 100 drives the side material feeder 300 to start; when the control module 100 receives a high material level signal or a main crusher 400 stop operation signal, the control module 100 delays the output of the second stop signal to the drive circuit, so that the main crusher 400 can be stopped with a delay, so as to ensure the stability and reliability of the star-delta conversion.

[0067] When the mode switch 200 is switched from the manual mode gear to the automatic mode gear, the control module 100 outputs the first stop signal to the main crusher 400, and the main crusher 400 stops immediately. At this time, it is necessary to manually confirm that there is no abnormality and manually press the start button of the main crusher 400 to restart. When the mode switch 200 is switched from the automatic mode gear to the manual mode gear, the control module 100 delays the output of the second stop signal to the drive circuit so that the main crusher 400 can be delayed to stop. If the start button of the main crusher 400 is pressed again during this process, it will be invalid, and it is necessary to wait until the main crusher 400 stops before restarting.

[0068] No matter which mode the mode switch 200 is in, when the emergency stop button 700 is pressed, the thermal relay FR1 of the main crusher 400 is triggered, or the travel switch 500 outputs an in-place signal, the control module 100 will output a first stop signal to the main crusher 400, and the main crusher 400 will stop immediately, thereby improving the safety of the production line. The staff will then need to manually confirm that it is correct, and after resetting, the side material feeder 300 can be restarted.

[0069] Reference Figures 1 to 3 In some embodiments of the present utility model, the control device further includes: a first indicator light 800 and a second indicator light 810;

[0070] The first indicator light 800 is electrically connected to the switch of the main contactor KM1 , and the first indicator light 800 can reflect the working state of the main crusher 400 ; wherein the working state of the main crusher 400 includes: a start state and a pause state.

[0071] The second indicator light 810 is electrically connected to the second switch of the driving relay KA1, and the second indicator light 810 can reflect the working state of the edge material feeder 300. The working state of the edge material feeder 300 includes: a start state and a pause state.

[0072] The preferred implementation methods of the utility model are specifically described above, but the invention of the utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the utility model. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A control device for a film edge material crusher, characterized in that: The film edge material crusher comprises a main crusher, and the control device comprises: a mode switching switch, a control module, an edge material feeder and a powder material collection box; A high material level detector is provided on the top of the powder collection box, and the high material level detector is used to detect the powder accumulated on the top of the powder collection box and output a high material level signal with a delayed delay. The mode switching switch and the high material level detector are both connected to the input end of the control module, and the mode switching switch includes a maintenance mode gear and an automatic mode gear; The output end of the control module is connected to the side material feeder and the main crusher respectively. When the mode switching switch is in the automatic mode position, the control module receives the high material level signal and outputs a first stop signal to the side material feeder to stop the side material feeder. The control module also outputs a delayed second stop signal to the main crusher to delay the main crusher from stopping.

2. The control device of a film edge material crusher according to claim 1, characterized in that: The edge material feeder comprises: a feed motor, a frequency converter and a potentiometer; The potentiometer is connected to a first input terminal of the frequency converter, the feeding motor is connected to a first output terminal of the frequency converter, and the second output terminal of the frequency converter is connected to an input terminal of the control module.

3. The control device of a film edge material crusher according to claim 2, characterized in that: The edge material feeder further comprises: a drive repeater; The drive relay is connected to the output end of the control module and the second input end of the frequency converter respectively.

4. The control device of a film edge material crusher according to claim 1, characterized in that: Also includes: Travel switch; The travel switch is arranged on the cover of the main crusher, and is connected to the input end of the control module. The travel switch is used to detect the opening of the cover of the main crusher, and output an in-position signal to the control module, so that the control module outputs a first stop signal to the main crusher.

5. The control device of a film edge material crusher according to claim 1, characterized in that: Also includes: Cooling fan; The cooling fan is connected to the side material feeder, and the cooling fan is connected to the output end of the control module. The cooling fan is used to cool down the running main crusher.

6. The control device of a film edge material crusher according to claim 1, characterized in that: Also includes: Emergency stop button; The emergency stop button is connected to the input end of the control module, and is used to respond to a user trigger instruction and output an emergency stop signal to the control module, so that the control module outputs a first stop signal to the main crusher and the side material feeder.

7. The control device of the film edge material crusher according to claim 3, characterized in that: The main pulverizer comprises: a pulverizing motor, a driving circuit and a thermal relay; One end of the pulverizing motor is connected to the thermal relay, the driving circuit is respectively connected to the two ends of the pulverizing motor, the driving circuit is connected to the output end of the control module, and the thermal relay is connected to the input end of the control module.

8. The control device of the film edge material crusher according to claim 7, characterized in that: The drive circuit includes: a main contactor, a star contactor and a delta contactor; The main contactor is connected to one end of the pulverizing motor through a thermal relay, the delta contactor is connected to both ends of the pulverizing motor, and the star contactor is connected to the other end of the pulverizing motor.

9. A control device for a film edge material crusher according to claim 8, characterized in that: Also includes: a first indicator light and a second indicator light; The first indicator light is connected to the main contactor, and the first indicator light is used to display the working status of the main crusher; The second indicator light is connected to the driving repeater, and is used to display the working status of the side material feeder, wherein the working status includes a start status and a pause status.

10. The control device of the film edge material crusher according to claim 1, characterized in that: The control module includes: a SMART PLC controller.

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