Raw material mixing device for PC film production

Abstract

A kind of raw material mixing device for PC film production, including mixing barrel and mixing hopper, the sidewall of lower part of mixing barrel is respectively equipped with circulating mixing discharge pipe and discharge pipe, the bottom of mixing barrel is equipped with circulating feed pipe, mixing hopper is installed in one side of mixing barrel, and it is communicated with circulating feed pipe, protective screen that can be up and down is arranged in mixing hopper, spiral conveying blade is coaxially arranged in mixing barrel, the top of mixing barrel is equipped with drive motor for driving spiral conveying blade to rotate.The utility model has the advantages that: raw materials are repeatedly circulated in mixing hopper and mixing barrel, which can quickly mix raw materials evenly, and protective screen is shaken up and down during mixing process, which can effectively prevent raw materials from blocking and ensure smooth discharge.

Description

Technical Field

[0001] This utility model relates to the technical field of PC film production equipment, specifically to a raw material mixing device for PC film production. Background Technology

[0002] PC film production raw materials are made by mixing and plasticizing resin and various auxiliary materials and then cutting them into pellets. During the raw material mixing stage, because PC resin pellets and crushed PC recycled material pellets are relatively light, they are prone to clogging in the mixing hopper, affecting the efficiency of feeding and mixing. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing a raw material mixing device for PC film production.

[0004] This utility model includes a mixing barrel and a mixing hopper. The lower side wall of the mixing barrel is provided with a circulating mixing outlet pipe and a discharge pipe, respectively. The bottom of the mixing barrel is provided with a circulating feed pipe. The mixing hopper is installed on one side of the mixing barrel and communicates with the circulating feed pipe. The mixing hopper is provided with a protective filter screen that can shake up and down. The mixing barrel is provided with a spiral conveying blade coaxially. The top of the mixing barrel is provided with a drive motor to drive the spiral conveying blade to rotate.

[0005] The bottom of the mixing tank is conical. The circulating mixing outlet pipe and discharge pipe are located on the side wall of the conical structure, while the circulating feed pipe is located at the bottom of the conical structure.

[0006] The protective filter screen is located between the circulating mixing outlet pipe and the circulating feed pipe. Both the circulating mixing outlet pipe and the discharge pipe are equipped with discharge valves.

[0007] The bottom of the mixing hopper is equipped with a set of loosening rods, one end of which extends above the protective filter screen.

[0008] One end of the protective filter screen is hinged to the mixing hopper by a pin, and the other end of the protective filter screen is linked to the screw conveyor blades by a drive rod.

[0009] One end of the mounting shaft of the spiral conveyor blade extends below the circulating feed pipe. The frame of the mixing tank is equipped with a drive shaft. The mounting shaft and the drive shaft are respectively equipped with matching transmission gears. The drive shaft is equipped with a drive cam that controls the reciprocating movement of the drive rod.

[0010] The advantages of this invention are: the raw materials circulate repeatedly in the mixing hopper and mixing barrel, which can quickly and evenly mix the raw materials. At the same time, the protective filter screen shakes up and down during the mixing process, which can effectively prevent the raw materials from clogging and ensure smooth feeding. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the protective filter drive mechanism. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0015] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model. Furthermore, if terms such as "first" or "second" appear in the description of this utility model, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0016] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] As shown in the attached drawings, this utility model includes a mixing tank 20 and a mixing hopper 21. A circulating mixing outlet pipe 23 and a discharge pipe 24 are respectively provided on the lower side wall of the mixing tank 20. A circulating feed pipe 25 is provided at the bottom of the mixing tank 20. The mixing hopper 21 is installed on one side of the mixing tank 20 and communicates with the circulating feed pipe 25. A protective filter screen 26 that can be shaken up and down is provided inside the mixing hopper 21. A spiral conveying blade 27 is coaxially provided inside the mixing tank 20. A drive motor 28 for driving the spiral conveying blade 27 to rotate is provided at the top of the mixing tank 20.

[0018] Raw materials enter the mixing hopper 21, and then pass through the mixing hopper 21 into the mixing drum 20. As the screw conveyor blades 27 rotate, they transport the raw materials into the mixing drum 20 upwards. During mixing, the circulating mixing outlet pipe 23 is open, while the discharge pipe 24 is closed. As the raw materials are transported upwards in the mixing drum 20, they flow back from the circulating mixing outlet pipe 23 into the mixing hopper 21, and then re-enter the mixing drum 20 together with the raw materials in the mixing hopper 21. This cycle repeats, ensuring the raw materials are mixed evenly. After mixing is complete, the circulating mixing outlet pipe 23 is closed, and the discharge pipe 24 is opened to discharge the mixture.

[0019] Preferably, the bottom of the mixing tank 20 is a conical structure, the circulating mixing outlet pipe 23 and the discharge pipe 24 are both located on the side wall of the conical structure, and the circulating feed pipe 25 is located at the bottom of the conical structure.

[0020] The conical structure facilitates the upward conveying of materials while concentrating them in the middle, improving mixing efficiency. It also facilitates the return of materials passing through the circulating mixing outlet pipe 23 to the mixing hopper 21.

[0021] Furthermore, the protective filter 26 is located between the circulating mixing outlet pipe 23 and the circulating feed pipe 25, and both the circulating mixing outlet pipe 23 and the discharge pipe 24 are equipped with discharge valves. The protective filter 26 serves to prevent large foreign objects from falling into the mixing tank 20, while simultaneously ensuring that the incoming raw materials are evenly fed into the mixing tank 20.

[0022] Furthermore, the bottom of the mixing hopper 21 is provided with a set of loosening rods 29, one end of which extends above the protective filter screen 26.

[0023] The loosening rod 29 is a fixed part. When one end of the protective filter screen 26 swings up and down, the loosening rod 29 can lift the material above the protective filter screen 26, making it loose and accelerating the material to leak down from the protective filter screen 26.

[0024] Furthermore, one end of the protective filter screen 26 is hinged to the mixing hopper 21 by a pin, and the other end of the protective filter screen 26 is linked to the spiral conveying blade 27 by the drive rod 31.

[0025] Specifically, one end of the mounting shaft of the spiral conveyor blade 27 extends below the circulating feed pipe 25, and the frame of the mixing tank 20 is equipped with a drive shaft. The mounting shaft and the drive shaft are respectively equipped with a transmission gear 34 that cooperates with each other. The drive shaft is equipped with a drive cam 35 that controls the drive rod 31 to move up and down reciprocally.

[0026] The drive cam 35 is provided with a cam groove, and the drive rod 31 is provided with a roller that cooperates with the cam groove. When the drive cam 35 rotates, it drives the drive rod 31 to move up and down, thereby causing one end of the protective filter screen 26 to swing up and down.

Claims

1. A raw material mixing device for PC film production, characterized in that... The mixing tank (20) and the mixing hopper (21) are provided. The lower side wall of the mixing tank (20) is provided with a circulating mixing outlet pipe (23) and a discharge pipe (24). The bottom of the mixing tank (20) is provided with a circulating feed pipe (25). The mixing hopper (21) is installed on one side of the mixing tank (20) and is connected to the circulating feed pipe (25). The mixing hopper (21) is provided with a protective filter screen (26) that can be shaken up and down. The mixing tank (20) is provided with a spiral conveying blade (27) coaxially. The top of the mixing tank (20) is provided with a drive motor (28) that drives the spiral conveying blade (27) to rotate.

2. The raw material mixing device for PC film production according to claim 1, characterized in that... The bottom of the mixing tank (20) is a conical structure. The circulating mixing outlet pipe (23) and the discharge pipe (24) are both located on the side wall of the conical structure, and the circulating feed pipe (25) is located at the bottom of the conical structure.

3. The raw material mixing device for PC film production according to claim 1, characterized in that... The protective filter (26) is located between the circulating mixing outlet pipe (23) and the circulating feed pipe (25). Both the circulating mixing outlet pipe (23) and the discharge pipe (24) are equipped with discharge valves.

4. The raw material mixing device for PC film production according to claim 3, characterized in that... The bottom of the mixing hopper (21) is provided with a set of loosening rods (29) with one end extending above the protective filter screen (26).

5. A raw material mixing device for PC film production according to claim 1, characterized in that... One end of the protective filter (26) is hinged to the mixing hopper (21) by a pin, and the other end of the protective filter (26) is linked to the spiral conveying blade (27) by a drive rod (31).

6. A raw material mixing device for PC film production according to claim 5, characterized in that... One end of the mounting shaft of the spiral conveyor blade (27) extends below the circulating feed pipe (25). The frame of the mixing tank (20) is equipped with a drive shaft. The mounting shaft and the drive shaft are respectively equipped with a transmission gear (34). The drive shaft is equipped with a drive cam (35) that controls the drive rod (31) to move up and down.

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