A plastic film preparation compounding device

Abstract

The utility model discloses a kind of mixing material device for plastic film preparation, including device cylinder, its periphery is equipped with fixed support, top has top plate body and maintenance cover plate, cover plate edge sealing rubber strip enhances sealing, top plate body is installed stirring motor by shock absorber support, its drive rotating shaft and have the stirring blade of main and deputy blade, realize material uniform mixing, weighing sensor below feed inlet cooperates with screw feeding mechanism, pitch gradually changed helical blade ensures that feeding is stable and accurate, control device realizes automatic control by PLC controller and touch screen, stainless steel pneumatic butterfly valve is equipped in discharge port, valve plate is coated with polytetrafluoroethylene coating, it is convenient to accurately control discharging, device cylinder inner wall Teflon anti-sticking coating is convenient to clean and maintain.The device is optimized through structure and intelligent control, solves traditional mixing device poor sealing, stirring is not even, feeding is not accurate and the like, improves mixing quality and production efficiency, with good practicality and innovativeness.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic film production equipment, specifically a mixing and batching device for preparing plastic film. Background Technology

[0002] In the production process of plastic film, the mixing process is crucial, as it directly affects the quality and performance of the plastic film.

[0003] Existing mixing equipment for plastic film preparation has several problems: 1. The vibration generated by the stirring motor in previous equipment was significant, and there was a lack of effective vibration damping measures. The vibration was transmitted to the equipment cylinder, generating considerable noise. Long-term exposure to this noise environment could damage the hearing of operators, and the vibration could also affect the stability and service life of the equipment; 2. The traditional stirring structure design was unreasonable, with a single type of stirring blade that could not adequately disturb the materials, making it difficult to fully mix raw materials of different components. This resulted in inconsistent performance of the produced plastic film, affecting product quality and potentially requiring multiple reprocessing steps, thus reducing production efficiency; 3. The traditional feed inlet design was unreasonable, leading to problems such as material accumulation and blockage during feeding. The feeding stability and accuracy were poor, making it impossible to ensure that each material entered the equipment cylinder in a precise proportion, thereby affecting the mixing quality; 4. The inner wall of the traditional equipment cylinder lacked anti-stick treatment, making it easy for materials to adhere to the inner wall. This was difficult to clean, and the residual material would affect the subsequent mixing quality. Moreover, the cleaning process consumed a lot of time and manpower, reducing the efficiency of the equipment.

[0004] Therefore, it is necessary to design a mixing and compounding device for plastic film preparation to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a mixing and compounding device for preparing plastic film, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A mixing device for preparing plastic film includes a device cylinder, a fixed bracket fixedly installed on the periphery of the device cylinder, a top plate fixedly installed at the top center of the device cylinder, inspection covers rotatably connected to the left and right sides of the top plate via hinges, a handle fixedly installed on the top side of the inspection cover away from the hinges, a shock-absorbing bracket fixedly installed at the top center of the top plate, a feed inlet and a control device fixedly installed on the left and right periphery of the top plate, a stirring structure installed inside the device cylinder, a discharge port installed at the bottom of the device cylinder, and an electrically controlled valve installed on the discharge port.

[0008] The stirring structure includes a stirring motor fixedly installed on the top of the shock-absorbing bracket. The bottom output end of the stirring motor is also connected to a rotating shaft located inside the device cylinder. Stirring blades are also fixedly installed on the lower periphery of the rotating shaft by a fixing sleeve.

[0009] A weighing sensor and a screw feeding mechanism are installed below the feed inlet. The control terminals of the weighing sensor, the screw feeding mechanism, and the stirring motor are all electrically connected to the control device.

[0010] As a preferred embodiment of this utility model, a sealing rubber strip is provided at the edge where the inspection cover plate contacts the top plate. The cross-section of the sealing rubber strip is trapezoidal to enhance the sealing performance of the device and prevent dust leakage during the mixing process.

[0011] As a preferred embodiment of this utility model, the shock-absorbing bracket includes multiple spring shock-absorbing units. The upper and lower ends of the spring shock-absorbing units are respectively fixedly connected to the bottom of the stirring motor and the top of the top plate by bolts, which can effectively reduce the vibration generated by the stirring motor during operation and transmit it to the device cylinder, thereby reducing noise.

[0012] As a preferred embodiment of this utility model, the stirring blade includes a main stirring blade and a secondary stirring blade. The main stirring blade has an arc-shaped structure, and the secondary stirring blade is vertically arranged on the surface of the main stirring blade. The secondary stirring blade has several through holes to enhance the stirring effect and make the material mix more evenly.

[0013] As a preferred embodiment of this utility model, the electrically controlled valve is a pneumatic butterfly valve, the valve body of which is made of stainless steel and the valve plate surface is coated with polytetrafluoroethylene.

[0014] As a preferred embodiment of this utility model, the spiral feeding mechanism includes spiral blades and a feeding tube. The pitch of the spiral blades gradually decreases from the inlet end to the outlet end, which enables the material to be gradually compressed during the feeding process, thereby improving the stability and accuracy of the feeding.

[0015] As a preferred embodiment of this utility model, the control device includes a PLC controller and a human-machine interface, wherein the human-machine interface is a touch screen. The operator can set parameters such as material ratio, stirring time, and stirring speed through the touch screen. The PLC controller controls the weighing sensor, screw feeding mechanism, and stirring motor to work according to the set parameters.

[0016] As a preferred embodiment of this utility model, the inner wall of the device cylinder is provided with an anti-stick coating, which is a Teflon coating with a thickness of 0.1-0.3mm, which can prevent materials from adhering to the inner wall of the device cylinder and facilitate cleaning and maintenance.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention, through a mixing device for preparing plastic film, achieves the following effects: 1. The stirring blades include an arc-shaped main stirring blade and a vertical auxiliary stirring blade with through holes, disturbing the material from multiple angles and in multiple ways, enhancing the stirring effect, ensuring thorough mixing, improving the quality stability of the plastic film, reducing rework, and increasing production efficiency; 2. The pitch of the spiral blades of the spiral feeding mechanism gradually decreases from the inlet end to the outlet end, compressing the material during feeding, improving feeding stability and accuracy, ensuring that each material enters the device cylinder in a precise proportion, and improving the mixing quality; 3. The shock-absorbing bracket uses multiple spring shock-absorbing units, which are bolted to the stirring motor and the top plate, effectively reducing vibration transmission during the operation of the stirring motor, reducing noise, creating a good working environment, and extending the service life of the device; 4. The Teflon anti-stick coating on the inner wall of the device cylinder prevents material adhesion, facilitates cleaning and maintenance, reduces cleaning time and labor costs, ensures that the mixing quality is not affected by residual materials, and improves equipment utilization efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention after partial disassembly;

[0021] Figure 3 This is a schematic diagram of the planar structure of the present invention after partial disassembly.

[0022] In the diagram: 1. Device cylinder; 2. Fixed bracket; 3. Top plate; 4. Inspection cover; 5. Handle; 6. Shock-absorbing bracket; 7. Feed inlet; 8. Control device; 9. Mixing structure; 91. Mixing motor; 92. Rotating shaft; 93. Fixed sleeve; 94. Mixing blade; 10. Discharge port; 11. Electrically controlled valve; 12. Weighing sensor; 13. Screw feeding mechanism. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0028] A mixing device for preparing plastic film includes a cylindrical body 1. A fixed bracket 2 is fixedly installed on the periphery of the cylindrical body 1. A top plate 3 is fixedly installed at the center of the top of the cylindrical body 1. Inspection cover plates 4 are rotatably connected to the left and right sides of the top plate 3 via hinges. A handle 5 is fixedly installed on the top side of the inspection cover plate 4 away from the hinges. A shock-absorbing bracket 6 is fixedly installed at the center of the top of the top plate 3. A feed inlet 7 and a control device 8 are respectively fixedly installed on the left and right peripheries of the top plate 3. A stirring structure 9 is also provided inside the cylindrical body 1. A discharge port 10 is provided at the bottom of the cylindrical body 1, and an electrically controlled valve 11 is installed on the discharge port 10. The fixed bracket 2 is fixedly installed on the periphery of the cylindrical body 1, and the top plate 3 is fixed to the center of the top of the cylindrical body 1. The inspection cover plates 4 are installed on both sides of the top plate 3 via hinges, and the handles 5 are installed on the side of the inspection cover plates 4 away from the hinges. The shock-absorbing bracket 6 is fixed in the middle of the top plate 3, and the feed inlet 7 and control device 8 are respectively located on the outer sides of the top plate 3. The stirring motor 91 in the stirring structure 9 is installed on the top of the shock-absorbing bracket 6, and the rotating shaft 92 is connected to the output end of the stirring motor 91 and extends into the inside of the device cylinder 1. The stirring blade 94 is installed on the rotating shaft 92 through the fixing sleeve 93. The discharge port 10 is located at the bottom of the device cylinder 1, and the electrically controlled valve 11 is installed at the discharge port 10. The weighing sensor 12 and the screw feeding mechanism 13 are installed below the feed inlet 7, and the control terminals of the weighing sensor 12, the screw feeding mechanism 13, and the stirring motor 91 are electrically connected to the control device 8.

[0029] Specifically, the stirring structure 9 includes a stirring motor 91 fixedly installed on the top of the shock-absorbing bracket 6. The bottom output end of the stirring motor 91 is also connected to a rotating shaft 92 located inside the device cylinder 1. A stirring blade 94 is fixedly installed on the lower periphery of the rotating shaft 92 through a fixing sleeve 93. The stirring blade 94 includes a main stirring blade and a secondary stirring blade. The main stirring blade has an arc-shaped structure, and the secondary stirring blade is vertically arranged on the surface of the main stirring blade. The secondary stirring blade has several through holes to enhance the stirring effect and make the material mix more evenly. When the stirring motor 91 is started, the stirring motor 91 drives the rotating shaft 92 to rotate. The rotating shaft 92 drives the stirring blade 94 to rotate through the fixing sleeve 93. The arc-shaped structure of the main stirring blade and the through holes on the secondary stirring blade stir the material in the device cylinder 1 from different directions and in different ways. This enhances the stirring effect, makes the material mix more evenly, improves the mixing quality, and ensures the stable performance of the subsequent plastic film products.

[0030] Specifically, a sealing rubber strip is provided at the edge where the inspection cover 4 contacts the top plate 3. The sealing rubber strip has a trapezoidal cross-section to enhance the sealing performance of the device and prevent dust leakage during the mixing process. When the inspection cover 4 is closed, the trapezoidal cross-section sealing rubber strip at the edge where the inspection cover 4 contacts the top plate 3 fits tightly. This enhances the sealing performance of the device, prevents dust leakage during the mixing process, protects the working environment and the health of operators, and reduces material loss.

[0031] Specifically, the vibration damping bracket 6 includes multiple spring damping units. The upper and lower ends of the spring damping units are fixedly connected to the bottom of the stirring motor 91 and the top of the top plate 3 by bolts, which can effectively reduce the vibration generated by the stirring motor 91 during operation and transmit it to the device cylinder 1, thereby reducing noise. When the stirring motor 91 is working, the vibration is buffered by the spring damping units, and the bolts at the upper and lower ends of the spring damping units disperse the vibration. This effectively reduces the vibration generated by the stirring motor 91 during operation and transmits it to the device cylinder 1, thereby reducing noise, extending the service life of the device, and improving the working environment.

[0032] Specifically, the electrically controlled valve 11 is a pneumatic butterfly valve. The valve body is made of stainless steel, and the valve plate is coated with PTFE. It features corrosion resistance, good sealing performance, and flexible opening and closing, making it easy to control the feeding speed and amount. According to production needs, the opening and closing degree and speed of the electrically controlled valve 11 are controlled by the control device 8, and precise control is achieved by utilizing the stainless steel valve body and PTFE-coated valve plate of the pneumatic butterfly valve. This electrically controlled valve is corrosion resistant, has good sealing performance, and is flexible in opening and closing, making it easy to accurately control the feeding speed and amount, ensuring the smooth progress of subsequent production processes and avoiding material waste.

[0033] Specifically, a weighing sensor 12 and a screw feeding mechanism 13 are installed below the feed inlet 7. The control terminals of the weighing sensor 12, the screw feeding mechanism 13, and the stirring motor 91 are all electrically connected to the control device 8. The screw feeding mechanism 13 includes screw blades and a feeding pipe. The pitch of the screw blades gradually decreases from the feed end to the discharge end, which can gradually compress the material during the feeding process, improving the stability and accuracy of the feeding. The material enters from the feed inlet 7, and the weighing sensor 12 monitors the weight of the material in real time. According to preset parameters, the control device 8 conveys the material into the device cylinder 1 through the screw blades of the screw feeding mechanism 13. The pitch of the screw blades gradually decreases from the feed end to the discharge end, compressing and conveying the material. This achieves precise proportional conveying of the material, improves the stability and accuracy of the feeding, and ensures the quality of the mixed material.

[0034] Specifically, the control device 8 includes a PLC controller and a human-machine interface (HMI). The HMI is a touch screen, through which operators can set parameters such as material ratio, mixing time, and mixing speed. The PLC controller controls the weighing sensor 12, the screw feeding mechanism 13, and the mixing motor 91 according to the set parameters. The operator sets the material ratio, mixing time, and mixing speed parameters on the touch screen HMI of the control device 8. After receiving the parameters, the PLC controller controls the weighing sensor 12, the screw feeding mechanism 13, and the mixing motor 91 to operate. This achieves automated and precise control, reduces human error, improves production efficiency and mixing accuracy, and meets the high-precision requirements of modern plastic film production.

[0035] Specifically, the inner wall of the device cylinder 1 is provided with an anti-stick coating, which is a Teflon coating with a thickness of 0.1-0.3mm. This coating prevents materials from adhering to the inner wall of the device cylinder 1, facilitating cleaning and maintenance. After the mixing process is completed, the material adhering to the inner wall of the device cylinder 1 can be easily cleaned due to the Teflon anti-stick coating. This prevents material adhesion, facilitates cleaning and maintenance, reduces cleaning time and labor costs, ensures that the quality of each mixing is not affected by residual materials, and improves equipment utilization efficiency.

[0036] The working process of this utility model is as follows: When using the mixing device for preparing plastic film, install each component in place. The fixed bracket 2 is fixed to the outer periphery of the device cylinder 1. The top plate 3 is installed in the middle of the top of the device cylinder 1. The inspection cover 4 is connected to the top plate 3 through a hinge. The handle 5 is installed on the inspection cover 4. The shock-absorbing bracket 6 is fixed in the middle of the top plate 3. The feed inlet 7 and the control device 8 are respectively located on both sides of the top plate 3. The stirring motor 91 is installed on the top of the shock-absorbing bracket 6. The rotating shaft 92 is connected to the stirring motor 91 and extends into the device cylinder 1. The stirring blade 94 is installed on the rotating shaft 92 through the fixing sleeve 93. The discharge port 10 is located at the bottom of the device cylinder 1. The electric control valve 11 is installed at the discharge port 10. The weighing sensor 12 and the screw feeding mechanism 13 are installed at the feed inlet 10. Below the feed inlet 7, electrical connections are completed. Material then enters through the feed inlet 7, and the weighing sensor 12 monitors the weight in real time. The control device 8, based on preset parameters, precisely delivers the material proportionally into the device cylinder 1 via the screw feeding mechanism 13. The screw pitch gradually decreases from the feed end to the discharge end, compressing the material to ensure stable and accurate feeding. Simultaneously, the stirring motor 91 is started, driving the rotating shaft 92 and stirring blades 94 to rotate. The arc-shaped structure of the main stirring blade and the through holes on the auxiliary stirring blades stir the material inside the device cylinder 1 from different directions and in different ways, ensuring uniform mixing. After mixing, the control device 8 operates the electrically controlled valve 11 to open, utilizing its corrosion resistance, good sealing, and flexible switching characteristics to precisely control the feeding speed and amount, discharging from the discharge port 10. The Teflon anti-stick coating on the inner wall of the device cylinder 1 easily cleans adhering materials, completing equipment maintenance and cleaning.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixing apparatus for preparing plastic film, comprising an apparatus cylinder (1), characterized in that: A fixed bracket (2) is fixedly installed on the outer periphery of the device cylinder (1). A top plate (3) is fixedly installed at the middle position of the top of the device cylinder (1). A maintenance cover (4) is rotatably connected to the left and right sides of the top plate (3) via hinges. A handle (5) is fixedly installed on the top side of the maintenance cover (4) away from the hinge. A shock-absorbing bracket (6) is fixedly installed at the middle position of the top of the top plate (3). A feed inlet (7) and a control device (8) are also fixedly installed on the outer periphery of the left and right sides of the top plate (3). A stirring structure (9) is also provided inside the device cylinder (1). A discharge port (10) is provided at the bottom of the device cylinder (1). An electric control valve (11) is provided on the discharge port (10). The stirring structure (9) includes a stirring motor (91) fixedly installed on the top of the shock-absorbing bracket (6). The bottom output end of the stirring motor (91) is also connected to a rotating shaft (92) located inside the device cylinder (1). The lower periphery of the rotating shaft (92) is also fixedly installed with stirring blades (94) by a fixing sleeve (93). A weighing sensor (12) and a screw feeding mechanism (13) are provided below the feed inlet (7). The control terminals of the weighing sensor (12), the screw feeding mechanism (13), and the stirring motor (91) are all electrically connected to the control device (8).

2. The mixing apparatus for preparing plastic film according to claim 1, characterized in that: A sealing rubber strip is provided at the edge where the inspection cover (4) contacts the top plate (3). The cross-section of the sealing rubber strip is trapezoidal to enhance the sealing of the device and prevent dust leakage during the mixing process.

3. The mixing apparatus for preparing plastic film according to claim 1, characterized in that: The shock-absorbing bracket (6) includes multiple spring shock-absorbing units. The upper and lower ends of the spring shock-absorbing units are fixedly connected to the bottom of the stirring motor (91) and the top of the top plate (3) by bolts, which can effectively reduce the vibration generated by the stirring motor (91) during operation and transmit it to the device cylinder (1), thereby reducing noise.

4. The mixing apparatus for preparing plastic film according to claim 1, characterized in that: The stirring blade (94) includes a main stirring blade and a secondary stirring blade. The main stirring blade has an arc-shaped structure, and the secondary stirring blade is vertically arranged on the surface of the main stirring blade. The secondary stirring blade has several through holes to enhance the stirring effect and make the material mix more evenly.

5. The mixing apparatus for preparing plastic film according to claim 1, characterized in that: The electrically controlled valve (11) is a pneumatic butterfly valve. The valve body of the pneumatic butterfly valve is made of stainless steel and the valve plate surface is coated with polytetrafluoroethylene.

6. The mixing apparatus for preparing plastic film according to claim 1, characterized in that: The spiral feeding mechanism (13) includes spiral blades and a feeding tube. The pitch of the spiral blades gradually decreases from the feed end to the discharge end, which enables the material to be gradually compressed during the feeding process, thereby improving the stability and accuracy of the feeding.

7. The mixing apparatus for preparing plastic film according to claim 1, characterized in that: The control device (8) includes a PLC controller and a human-machine interface. The human-machine interface is a touch screen. Operators can set parameters such as material ratio, stirring time, and stirring speed through the touch screen. The PLC controller controls the weighing sensor (12), the screw feeding mechanism (13), and the stirring motor (91) to work according to the set parameters.

8. The mixing apparatus for preparing plastic film according to claim 1, characterized in that: The inner wall of the device cylinder (1) is provided with an anti-stick coating, which is a Teflon coating with a thickness of 0.1-0.3mm. This coating can prevent materials from adhering to the inner wall of the device cylinder (1) and facilitate cleaning and maintenance.

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