Photoelectric control mechanism of granulating equipment

Abstract

The utility model provides a photoelectric control mechanism of granulation equipment, which relates to the technical field of chemical material preparation, and mainly comprises a controller, a cutter photoelectric sensor and a blowing strip photoelectric sensor, the cutter photoelectric sensor and the blowing strip photoelectric sensor are both arranged above a conveying belt, and the controller is connected with the cutter photoelectric sensor and the blowing strip photoelectric sensor. The cutter photoelectric sensor and the strip blowing photoelectric sensor are both electrically connected with the controller, and the controller is electrically connected with the cutter mechanism and the blowing mechanism. According to the utility model, the physical position of the material is directly detected through the photoelectric sensor, a position-action direct mapping relation is established, the influence of speed fluctuation on the control precision is fundamentally eliminated, the control precision of the cutting and blowing process is converted from the time dimension to the space dimension, and the process coordination and the action triggering accuracy are obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical material preparation technical field especially is related to a photoelectric control mechanism of granulating equipment. BACKGROUND

[0002] At present, the size control of the strip is controlled by time in the manufacturing of the pellet in the chemical industry, that is, the action of the cutter is controlled by time, because the speed of the extruded material strip has certain fluctuation, the size of the material strip is long or short, which leads to high scrap rate. In addition, the time control is also used in the control of the strip, which makes the strip position inaccurate, and also leads to high scrap rate. SUMMARY

[0003] Therefore, the utility model discloses a photoelectric control mechanism of granulating equipment to solve the technical problem that the speed of the extruded material strip has certain fluctuation, the size of the material strip is long or short when the cutter cuts, and the scrap rate is high.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a photoelectric control mechanism of granulating equipment, including controller, cutter photoelectric sensor and blow strip photoelectric sensor, the cutter photoelectric sensor and the blow strip photoelectric sensor all are located in the upper of the conveyer belt, the cutter photoelectric sensor is used to induct whether the material strip reaches the preset position of the conveyer belt, the blow strip photoelectric sensor is used to induct whether the material strip reaches the blowing mechanism, the cutter photoelectric sensor and the blow strip photoelectric sensor all are electrically connected with the controller, the controller is electrically connected with the cutter mechanism and the blowing mechanism.

[0005] Optionally, the controller includes cutter controller and blowing controller, the cutter controller is electrically connected with the cutter photoelectric sensor and the cutter mechanism simultaneously, the blowing controller is electrically connected with the blow strip photoelectric sensor and the blowing mechanism simultaneously.

[0006] Optionally, the cutter photoelectric sensor inducts the material strip, and passes the inductive signal to the cutter controller, and the cutter controller controls the cutter mechanism to cut the material strip.

[0007] Optionally, the cutter mechanism is located in the end of the conveyer belt, and the cutter photoelectric sensor is located in the upper of the conveyer belt with the preset distance interval between the cutter mechanism.

[0008] Optionally, the cutter mechanism includes driving motor and cutter, the cutter is located below the driving motor and is drivingly connected with the driving motor, and the driving motor is electrically connected with the cutter controller.

[0009] Optionally, the blowing strip photoelectric sensor senses whether the material strip reaches the blowing mechanism, and transmits a sensing signal to the blowing controller, and the blowing controller controls the blowing mechanism to blow or not.

[0010] Optionally, the blowing mechanism comprises a blowing pipe, and the blowing pipe is provided with an air inlet hole and a blowing hole, and the blowing controller controls opening and closing of the blowing hole.

[0011] Optionally, the blowing hole is provided with a blowing control valve for controlling opening and closing of the blowing hole, and the blowing controller is electrically connected with the blowing control valve.

[0012] The photoelectric control mechanism of the granulating equipment has the following technical effects:

[0013] The photoelectric control mechanism mainly comprises a controller, a cutter photoelectric sensor and a blowing strip photoelectric sensor, the cutter photoelectric sensor and the blowing strip photoelectric sensor are arranged above the conveying belt, the cutter photoelectric sensor and the blowing strip photoelectric sensor are electrically connected with the controller, and the controller is electrically connected with the cutter mechanism and the blowing mechanism. The photoelectric sensor directly detects the physical position of the material, establishes a direct mapping relationship between the position and the action, fundamentally eliminates the influence of speed fluctuation on the control precision, and converts the control precision of the cutting and blowing processes from the time dimension to the space dimension, so that the process coordination and the action triggering accuracy are significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0015] Figure 1 is a three-dimensional structure schematic diagram of a preferred embodiment of the photoelectric control mechanism of the present application;

[0016] Figure 2 is Figure 1 a front view of the photoelectric control mechanism in the embodiment;

[0017] Figure 3 is Figure 1 a top view of the photoelectric control mechanism in the embodiment.

[0018] Among them, Figures 1-3 :

[0019] 1, cutter photoelectric sensor; 2, blow strip photoelectric sensor; 3, conveying belt; 4, cutter mechanism; 41, drive motor; 42, cutter; 5, blowing mechanism; 51, blowing pipe; 52, air inlet hole; 53, blowing hole; 6, cutter controller; 7, blowing controller. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope protected by the utility model.

[0021] In the prior art, the timing control mode is generally used to manage the size of the strip and the strip pushing action during the manufacturing of the pellets in the chemical industry. The timing control mechanism triggers the action of the cutter 42 depending on the preset time interval, but due to the fluctuation of the speed of the extruded material strip, the timing control cannot adapt to the speed change in real time, resulting in inconsistent length of the cut material strip. The strip pushing mechanism based on time control also cannot accurately determine the position of the material strip, and there is a problem of deviation of the blowing timing. Such control mode is prone to cause the increase of the waste rate when the speed of the conveying belt 3 fluctuates or the material characteristics change.

[0022] In order to solve the above problems, the researchers found that the timing control has the defects of hysteresis and poor adaptability. Through the analysis of the material transmission process, it is realized that real-time position detection is the key to realize accurate control. Based on this, it is considered to use photoelectric sensing technology to capture the actual position of the material strip, and to establish a control logic based on physical position triggering. Further research shows that it is necessary to set detection points for the two key processes of cutting and blowing, and to design independent control loops to ensure the timing coordination of the actions.

[0023] Therefore, as Figures 1-3 shown, the utility model provides a photoelectric control mechanism of a granulating equipment, which comprises a controller, a cutter photoelectric sensor 1 and a strip blowing photoelectric sensor 2, the cutter photoelectric sensor 1 and the strip blowing photoelectric sensor 2 are both arranged above the conveying belt 3, the cutter photoelectric sensor 1 is used for sensing whether the material strip reaches the preset position of the conveying belt 3, the strip blowing photoelectric sensor 2 is used for sensing whether the material strip reaches the blowing mechanism 5, the cutter photoelectric sensor 1 and the strip blowing photoelectric sensor 2 are both electrically connected with the controller, and the controller is electrically connected with the cutter mechanism 4 and the blowing mechanism 5.

[0024] The controller is a programmable logic control device, which can be specifically implemented by an industrial PLC module, responsible for receiving sensor signals and outputting execution instructions. The cutter photoelectric sensor 1 is a photoelectric switch installed directly above the conveying belt 3, which can be specifically implemented by a reflective photoelectric sensor, and the existence of the material is determined by detecting the change of the reflected light intensity of the material strip surface. The blowing photoelectric sensor 2 is a photoelectric detection device arranged in front of the blowing station, which can be specifically implemented by a reflection type photoelectric sensor, and the arrival state of the material strip is determined by monitoring whether the material strip blocks the light path.

[0025] Specifically, when the material strip moves on the surface of the conveying belt 3, the cutter photoelectric sensor 1 continuously monitors the position of the material strip, and sends a trigger signal to the controller when the front end of the material strip reaches the predetermined cutting position. The controller immediately sends a cutting instruction to the cutter mechanism 4 after receiving the signal, ensuring that the cutting action is accurately matched with the position of the material. At the same time, the blowing photoelectric sensor 2 detects the position signal when the material continues to move to the blowing station, and the controller accurately controls the working time of the blowing mechanism 5 according to the signal. The two sensors work independently but are cooperatively controlled by the controller, ensuring the timing coordination of the cutting and blowing processes.

[0026] Compared with the prior art, the traditional timing control method relies on fixed time intervals and cannot adapt to real-time changes in material transmission speed. The utility model directly detects the physical position of the material by using a photoelectric sensor, establishes a direct mapping relationship between the position and the action, and fundamentally eliminates the influence of speed fluctuations on the control accuracy. The control accuracy of the cutting and blowing processes is converted from the time dimension to the spatial dimension, significantly improving the process coordination and action triggering accuracy. That is, the utility model realizes accurate control of the cutting length of the material, avoiding the phenomenon of uneven length caused by traditional timing cutting. The blowing action triggering time strictly corresponds to the actual arrival position of the material, ensuring that the blowing process effectively acts on the target material. The two independent photoelectric detection systems cooperate with the central controller to form a closed-loop control system, effectively reducing the waste rate caused by control errors.

[0027] Further, the controller includes a cutter controller 6 and a blowing controller 7, the cutter controller 6 is electrically connected with the cutter photoelectric sensor 1 and the cutter mechanism 4, and the blowing controller 7 is electrically connected with the blowing photoelectric sensor 2 and the blowing mechanism 5.

[0028] The cutter controller 6 is an electronic module for independently controlling the action of the cutter 42, which can be specifically implemented by a PLC chip with logic processing function, for receiving the signal of the cutter photoelectric sensor 1 and triggering the cutting operation. The blowing controller 7 is an electronic module for independently controlling the blowing action, which can be specifically implemented by a single-chip microcomputer with timing function, for receiving the signal of the blowing photoelectric sensor 2 and triggering the blowing action.

[0029] Specifically, when the material strip moves on the conveying belt 3, the cutter photoelectric sensor 1 continuously detects the position of the material strip and transmits a signal to the cutter controller 6. The cutter controller 6 determines the cutting opportunity according to the preset condition, and then drives the cutter mechanism 4 to complete the cutting action. At the same time, the blowing photoelectric sensor 2 monitors whether the material strip reaches the blowing station during the movement of the material strip, and transmits a signal to the blowing controller 7. The blowing controller 7 controls the blowing mechanism 5 to perform the blowing action according to the received signal, so that the material strip is separated from the conveying belt 3. The two controllers operate independently, process the signals of the corresponding sensors and control the actuators, avoiding signal cross interference.

[0030] Further, as shown in Figures 1-3 , the cutter mechanism 4 is arranged at the end of the conveying belt 3, and the cutter photoelectric sensor 1 is arranged above the conveying belt 3 at a preset distance from the cutter mechanism 4.

[0031] Specifically, when the material strip moves on the conveying belt 3 to a preset position, the cutter photoelectric sensor 1 detects the arrival state of the material strip and transmits a signal to the controller. The controller triggers the cutter mechanism 4 to perform the cutting action according to the signal. The above-mentioned preset distance is the length of the material strip.

[0032] As a preferred embodiment, as shown in Figure 1 , the cutter mechanism 4 includes a driving motor 41 and a cutter 42, the cutter 42 is arranged below the driving motor 41 and is drivingly connected with the driving motor 41, and the driving motor 41 is electrically connected with the cutter controller 6.

[0033] The driving motor 41 is a power device for driving the cutter 42 to perform the cutting action, which can be realized by a servo motor or a stepping motor, which can accurately adjust the movement speed and position of the cutter 42 according to the control signal, so as to ensure the real-time matching of the cutting action and the material strip transmission speed. The cutter 42 is a cutter for cutting the material strip, which can be realized by a rotary blade or a reciprocating blade, which is directly connected with the driving motor 41 and realizes fast cutting action through mechanical transmission, reducing the cutting error caused by response delay.

[0034] Specifically, when the material strip moves along the conveying belt 3 to the detection area of the cutter photoelectric sensor 1, the cutter photoelectric sensor 1 generates a trigger signal and transmits it to the cutter controller 6. The cutter controller 6 immediately sends a start instruction to the driving motor 41 according to the signal, and the driving motor 41 drives the cutter 42 to perform the cutting action through the driving connection. Since the cutter 42 is directly connected with the driving motor 41, and the response speed of the controller is not affected by the fluctuation of the material strip transmission speed, the cutting position only depends on the time when the material strip actually reaches the sensor, thereby eliminating the problem of inconsistent cutting length caused by speed fluctuation in traditional timing control.

[0035] As a preferred embodiment, as shown inFigure 1 As shown, the blowing strip photoelectric sensor 2 senses whether the material strip reaches the blowing mechanism 5 and transmits the sensing signal to the blowing controller 7, which controls the blowing mechanism 5 to blow or not.

[0036] Specifically, when the material strip moves on the conveying belt 3, the blowing strip photoelectric sensor 2 continuously monitors the position of the front end of the material. Once the material reaches the detection area corresponding to the blowing mechanism 5, the blowing strip photoelectric sensor 2 transmits a pulse signal to the blowing controller 7. The blowing controller 7 immediately sends a start command to the blowing mechanism 5 according to the timing of the received signal, so that compressed air accurately blows the material strip to the predetermined position through the nozzle. If the material does not reach the detection area, the blowing controller 7 will keep the blowing mechanism 5 in the closed state to avoid false operation.

[0037] Further, as shown, Figure 1 The blowing mechanism 5 includes a blowing pipe 51, which is provided with an air inlet hole 52 and a blowing hole 53, and the blowing controller 7 controls the opening and closing of the blowing hole 53.

[0038] The blowing pipe 51 refers to a tubular component for conveying airflow, which can be made of metal or pressure-resistant plastic material. The air inlet hole 52 and the blowing hole 53 are respectively used for air source access and airflow release. The blowing hole 53 is an airflow outlet provided on the blowing pipe 51, which can be in the form of a circular or rectangular hole. Its opening and closing state is adjusted by the blowing controller 7 according to the position signal of the material strip, so as to accurately control the timing of airflow release.

[0039] Specifically, the air inlet hole 52 of the blowing pipe 51 is connected with an external air source, and the position of the blowing hole 53 corresponds to the area where the material strip needs to be adjusted. When the blowing strip photoelectric sensor 2 detects that the material strip reaches the blowing mechanism 5, the signal is transmitted to the blowing controller 7, which controls the opening and closing of the blowing hole 53 according to the preset logic. For example, the blowing hole 53 can be equipped with a solenoid valve, and the controller triggers the solenoid valve to open by outputting an electric signal, so that the airflow is released instantaneously to push the material strip. By adjusting the opening time and frequency of the blowing hole 53 in real time, the material strip can be accurately adjusted to the target position during the conveying process.

[0040] Further, the blowing hole 53 is provided with a blowing control valve for controlling the opening and closing of the blowing hole 53, and the blowing controller 7 is electrically connected with the blowing control valve. The blowing control valve is an execution element installed on the blowing hole 53, which is used to adjust the opening and closing state of the blowing hole 53 according to the control signal. Specifically, it can be realized by using a solenoid valve or a pneumatic valve, which is driven to act by receiving an electric signal, so as to control the opening or closing of the airflow passage.

[0041] In the description of the utility model, it is necessary to explain, unless otherwise stated, the meaning of "a plurality of" is two or more than two;The terms "upper", "lower", "left", "right", "internal", "external", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance.

[0042] In the description of the utility model, it is also necessary to explain that, unless otherwise expressly provided and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0043] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person familiar with the technical field can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered within the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A photoelectric control mechanism for a granulation device, characterized in that, The controller, the cutter photoelectric sensor and the blowing strip photoelectric sensor are arranged above the conveying belt, the cutter photoelectric sensor is used for sensing whether the material strip reaches the preset position of the conveying belt, the blowing strip photoelectric sensor is used for sensing whether the material strip reaches the blowing mechanism, the cutter photoelectric sensor and the blowing strip photoelectric sensor are electrically connected with the controller, and the controller is electrically connected with the cutter mechanism and the blowing mechanism.

2. The photoelectric control mechanism of a granulating apparatus according to claim 1, wherein The controller comprises a cutter controller and a blowing controller, the cutter controller is electrically connected with the cutter photoelectric sensor and the cutter mechanism simultaneously, and the blowing controller is electrically connected with the blowing strip photoelectric sensor and the blowing mechanism simultaneously.

3. The photoelectric control mechanism of a granulating apparatus according to claim 2, wherein The cutter photoelectric sensor senses the material strip and transmits a sensing signal to the cutter controller, and the cutter controller controls the cutter mechanism to cut the material strip.

4. The photoelectric control mechanism of a granulating apparatus according to claim 3, wherein The cutter mechanism is arranged at the end of the conveying belt, and the cutter photoelectric sensor is arranged above the conveying belt at a preset distance from the cutter mechanism.

5. The photoelectric control mechanism of a granulating apparatus according to claim 3, wherein The cutter mechanism comprises a driving motor and a cutter, the cutter is arranged below the driving motor and is drivingly connected with the driving motor, and the driving motor is electrically connected with the cutter controller.

6. The photoelectric control mechanism of a granulating apparatus according to any one of claims 2 to 5, wherein The blowing strip photoelectric sensor senses whether the material strip reaches the blowing mechanism and transmits a sensing signal to the blowing controller, and the blowing controller controls the blowing mechanism to blow or not.

7. The photoelectric control mechanism of a granulating apparatus according to claim 6, wherein The blowing mechanism comprises a blowing pipe, the blowing pipe is provided with an air inlet hole and a blowing hole, and the blowing controller controls the opening and closing of the blowing hole.

8. The photoelectric control mechanism of a granulating apparatus according to claim 7, wherein The blowing hole is provided with a blowing control valve for controlling the opening and closing of the blowing hole, and the blowing controller is electrically connected with the blowing control valve.

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