Master batch feeding control system

Abstract

The invention relates to the technical field of film making and feeding, and discloses a master batch feeding control system which comprises a feeding fan, a feeding bin and a plurality of storage bins, three-way valves are arranged at the tops of the storage bins, an electric discharging rotary valve is connected to the bottom of the feeding bin, a feeding header pipe is connected to the conveying end of the feeding fan, and the feeding header pipe is connected to the conveying end of the feeding fan. One end of the main material supply pipe is connected with branch material supply pipes, the branch material supply pipes are respectively communicated with a plurality of storage bins through a plurality of three-way valves, the three-way valves, the material supply fan and the electric discharging rotary valve are all controlled by a PLC (programmable logic controller), and valve position sensors are mounted on the surfaces of the three-way valves. Through the arrangement of the Roots blower, the electric discharging rotary valve, the multiple three-way valves and other components, a worker only needs to stand at the position of the feeding bin, discharging can be conducted on the multiple storage bins through PLC control, film manufacturing production is more automatic, meanwhile, the whole feeding process is in a closed environment, and a large amount of dust cannot be generated.

Description

Technical Field

[0001] The invention relates to a masterbatch feeding control system, belonging to the technical field of film making feeding. Background Art

[0002] The feeding of masterbatch is an important link in the film production process, which directly affects the speed and quality of film production and is related to the economic benefits of the enterprise.

[0003] In traditional production, the masterbatch is fed manually into storage bins at different locations. The back-and-forth movement consumes a lot of time and energy of the workers, resulting in low efficiency, limiting the automated production of film and directly affecting the efficiency of film production. At the same time, a large amount of dust is generated in the process of feeding the masterbatch into the storage bin, causing pollution to the environment in the factory.

[0004] Therefore, based on the above problems, a new masterbatch feeding control system is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a masterbatch feeding control system.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a masterbatch feeding control system, comprising a feeding fan, a feeding bin and a plurality of storage bins, the tops of the plurality of storage bins are all provided with three-way valves, the bottoms of the feeding bins are connected with electric unloading rotary valves, the conveying end of the feeding fan is connected with a feeding main pipe, one end of the feeding main pipe is connected with a feeding branch pipe, and the feeding branch pipes are respectively connected with a plurality of storage bins through a plurality of three-way valves; The three-way valve, feeding fan and electric unloading rotary valve are all controlled by a PLC controller. A valve position sensor is installed on the surface of the three-way valve, and a high-position sensor and a low-position sensor are installed inside the storage bin. The valve position sensor, the high-position sensor and the low-position sensor are all electrically connected to the PLC controller. The system also includes auxiliary relays, delay modules and fault lights.

[0007] As a further solution of the present invention: The PLC controller model is FX3U-64MR; The three-way valves are all solenoid valves; The feeding blower is a Roots blower.

[0008] As a further solution of the present invention: The valve position sensor is used to detect whether the three-way valve is in the correct position; The fault light is used to send out an alarm signal when the three-way valve is in the wrong position or the feed fan fails.

[0009] As a further solution of the present invention: The high-level sensor and the low-level sensor are used to detect the state of the material in the storage bin. When the material reaches the high-level sensor, a signal is sent out and the electric unloading rotary valve stops unloading.

[0010] As a further solution of the present invention: The delay module is used to control the delayed start of the electric unloading rotary valve and the delayed stop of the feeding fan.

[0011] As a further solution of the present invention: The delay time of the delay module is 60S.

[0012] The present invention has the following beneficial effects: 1. The present invention is equipped with components such as Roots blowers, electric unloading rotary valves, and multiple three-way valves. Only a person needs to stand at the position of the feeding bin to unload materials from multiple storage bins through PLC control, making film production more automated. At the same time, the entire feeding process is in a closed environment and will not generate a large amount of dust.

[0013] 2. The present invention can automatically detect valve switching and material fullness through the arrangement of components such as valve position sensors, high-level sensors, and delay modules, thereby preventing accidents from occurring during the feeding process. At the same time, in order to prevent materials from clogging the Roots blower, the Roots blower can be controlled to perform a 60-second pipe blowing operation before and after unloading to clear the pipeline, thereby increasing the service life of the Roots blower and avoiding the occurrence of malfunctions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an overall structural diagram of a masterbatch feeding control system of the present invention; Figure 2 A PLC control diagram of a masterbatch feeding control system of the present invention; Figure 3 The present invention discloses a main power supply line connection circuit diagram in a masterbatch feeding control system.

[0015] Legend: 1. Storage bin; 2. Feeding fan; 3. Feeding bin; 4. Three-way valve; 5. Electric unloading rotary valve; 6. Feeding main pipe; 7. Feeding branch pipe. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Example:

[0018] Reference Figure 1-Figure 3 , an embodiment provided by the present invention: A masterbatch feeding control system comprises a feeding fan 2, a feeding bin 3 and a plurality of storage bins 1, the tops of the plurality of storage bins 1 are all provided with three-way valves 4, the bottoms of the feeding bins 3 are connected with electric unloading rotary valves 5, the conveying end of the feeding fan 2 is connected with a feeding main pipe 6, one end of the feeding main pipe 6 is connected with a feeding branch pipe 7, and the feeding branch pipe 7 is connected with the plurality of storage bins 1 through the plurality of three-way valves 4 respectively; The three-way valve 4, the feeding fan 2 and the electric unloading rotary valve 5 are all controlled by the PLC controller. A valve position sensor is installed on the surface of the three-way valve 4, and a high-position sensor and a low-position sensor are installed inside the storage bin 1. The valve position sensor, the high-position sensor and the low-position sensor are all electrically connected to the PLC controller; The system also includes auxiliary relays, delay modules and fault lights.

[0019] The PLC controller model is FX3U-64MR; multiple three-way valves 4 are solenoid valves, which can realize automatic control. The feeding fan 2 is a Roots blower, which adopts advanced pneumatic design principles and can achieve high-efficiency work with low energy consumption. Its special impeller structure enables it to have a high compression ratio and volume efficiency, thereby providing reliable and efficient wind output.

[0020] The valve position sensor is used to detect whether the three-way valve 4 is in the correct position, and the fault light is used to send out an alarm signal when the three-way valve 4 is in the wrong position or the feed fan 2 fails, so that when the valve is not in the correct position or the feed fan 2 fails, it can be discovered and repaired in time to avoid unnecessary losses.

[0021] The high-level sensor and the low-level sensor are used to detect the state of the material in the storage bin 1. When the material reaches the high-level sensor, a signal is sent, and the electric unloading rotary valve 5 stops unloading, thereby realizing automatic control and improving the automation level of the feeding system.

[0022] The delay module is used to control the delayed start of the electric unloading rotary valve 5 and the delayed stop of the feeding fan 2. The delay time of the delay module is 60S. Through the delay before and after, the pipeline can be completely emptied to prevent the material from clogging the feeding fan 2.

[0023] Working principle: Figure 1 As shown, take the filling of materials in the B02 silo in the figure as an example: toggle the selection switch to select the B02 silo, the corresponding Y30 valve of the three-way valve 4 is opened, the valve position sensor detects that the Y30 valve position is correct and there is no alarm, press the start button, in order to prevent the material from blocking the feeding fan 2, start and complete the purge pipeline 60 seconds after the PLC controller controls the electric unloading rotary valve 5 to start, and blow the material falling from the feeding silo 3 to the B02 silo. When the material reaches the silo high position sensor, the electric unloading rotary valve 5 stops unloading first, and the feeding fan 2 continues to purge the pipeline for 60 seconds before emptying the material pipe and then stops.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A masterbatch feeding control system, comprising a feeding fan (2), a feeding bin (3) and a plurality of storage bins (1), characterized in that: The tops of the plurality of storage bins (1) are all provided with three-way valves (4), the bottom of the feeding bin (3) is connected with an electric unloading rotary valve (5), the conveying end of the feeding fan (2) is connected with a feeding main pipe (6), one end of the feeding main pipe (6) is connected with a feeding branch pipe (7), and the feeding branch pipe (7) is connected with the plurality of storage bins (1) through the plurality of three-way valves (4); The three-way valve (4), the feeding fan (2) and the electric unloading rotary valve (5) are all controlled by a PLC controller; a valve position sensor is installed on the surface of the three-way valve (4); a high position sensor and a low position sensor are installed inside the storage bin (1); and the valve position sensor, the high position sensor and the low position sensor are all electrically connected to the PLC controller; The system also includes auxiliary relays, delay modules and fault lights.

2. A masterbatch feeding control system according to claim 1, characterized in that: The PLC controller model is FX3U-64MR; The three-way valves (4) are all solenoid valves; The feed blower (2) is a Roots blower.

3. A masterbatch feeding control system according to claim 1, characterized in that: The valve position sensor is used to detect whether the three-way valve (4) is in a correct position; The fault light is used to send out an alarm signal when the three-way valve (4) is in an incorrect position or the feed fan (2) fails.

4. A masterbatch feeding control system according to claim 1, characterized in that: The high-level sensor and the low-level sensor are used to detect the state of the material in the storage bin (1); when the material reaches the high-level sensor, a signal is sent out, and the electric unloading rotary valve (5) stops unloading the material.

5. A masterbatch feeding control system according to claim 1, characterized in that: The delay module is used to control the delayed start of the electric unloading rotary valve (5) and to control the delayed stop of the feeding fan (2).

6. A masterbatch feeding control system according to claim 5, characterized in that: The delay time of the delay module is usually 60S.

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