Mixing device for modified plastic production

Abstract

The utility model discloses a mixing device for modified plastic production, and belongs to plastic processing equipment. The device comprises a feeding bin, raw materials in the feeding bin are conveyed into a mixing bin through a spiral feeding machine, a motor is arranged on the mixing bin and used for driving a rotating disc located at the end of the mixing bin, the rotating disc is embedded in the side wall of the mixing bin, the rotating disc is connected with a spiral stirring shaft on the inner side of the mixing bin, and the spiral stirring shaft is connected with the feeding bin. And a discharge port and a bin plate for sealing the discharge port are arranged at the bottom of the mixing bin. According to the utility model, the pollution condition of dust in the throwing and conveying process can be reduced, and the automation degree of material mixing is improved.

Description

Technical Field

[0001] The utility model belongs to plastic production and manufacturing technology, and specifically relates to a mixing device for modified plastic production. Background Art

[0002] Modified plastics refer to a type of plastics that are modified by adding fillers, reinforcing agents, flame retardants, antioxidants and other additives or resin blending to improve the performance of plastics and reduce costs. Modified plastics are widely used in machinery, electronics, construction and home appliances due to their good physical properties, chemical stability and processing properties. For example, PA, as the largest and most important variety of engineering plastics, has a strong vitality, mainly because it can achieve high performance after modification. Secondly, the automotive, electrical, telecommunications, electronics, machinery and other industries have increasingly strong requirements for high performance of their products. The rapid development of related industries has promoted the process of high performance of engineering plastics, making it play an increasingly important role.

[0003] In the production and preparation of modified plastics, the existing traditional practice is to add certain reinforcing agents to the powder or particles used to prepare plastics according to the measured requirements, then fully mix them, extrude them through thermoplastic equipment, and form them through cooling and other processes, or form plastic particles for subsequent plastic product production. For mixing, the existing methods include manual or some auxiliary mixing equipment. Generally speaking, the weight of ton bags used for batch production is large, and it is difficult to achieve sufficient mixing by manual or simple mixing; secondly, for the case of excessive mixing, the raw materials of each ton bag are generally mixed before adding, which is time-consuming and labor-intensive; furthermore, the existing dumping method of adding will cause dust to overflow and pollute the workshop environment. Therefore, the existing method needs to improve the automation program and improve from the perspective of saving manpower and time costs. Utility Model Content

[0004] The utility model aims to provide a material mixing device for the production of modified plastics.

[0005] Technical solution: A mixing device for modified plastic production, including a feeding bin, which is connected to a mixing bin, and the raw materials in the feeding bin are transmitted to the mixing bin by a screw feeder. The mixing bin is provided with a motor, and the motor is used to drive a turntable located at the end of the mixing bin. The turntable is embedded in the side wall of the mixing bin. On the inner side of the mixing bin, the turntable is connected to a spiral stirring shaft, and the bottom of the mixing bin is provided with a discharge port and a bin plate for closing the discharge port.

[0006] Furthermore, the screw feeder includes a cylinder and a screw feed rod located in the cylinder, and the screw feed rod is driven by a servo motor at the end of the cylinder.

[0007] Furthermore, the loading bin is supported by a frame.

[0008] The feeding port on the spiral feeder is connected to the bottom of the feeding bin, and an opening and closing baffle is provided at the connection.

[0009] Furthermore, the spiral stirring shaft in the mixing bin includes one or more, and the spiral stirring shaft is also provided in a spring shape and is made of elastic material.

[0010] The spiral stirring shaft is driven by a rotating disk, and the other end is arranged through a bearing located on a side wall of the mixing bin.

[0011] Furthermore, the mixing bin includes an upper cover and a feed port, and the feed port is connected to one end of a screw feeder.

[0012] Furthermore, the bin plate at the bottom of the mixing bin is configured as a pull-out type or an electrically controlled type, and the electrically controlled type uses an electric telescopic rod to drive the bin plate to move in the sliding frame.

[0013] Furthermore, the mixing bin is suspended by a frame, the frame includes telescopically adjustable frame legs, and the bottom of the frame legs includes a fixed seat.

[0014] Beneficial effects: Compared with the prior art, the utility model first feeds materials through the feeding bin, and then transmits them to the mixing bin through the screw feeder, which is convenient and flexible for the component production line and improves the degree of automation. Secondly, the traditional method is to mix the materials according to the weight of each ton bag, and then mix and put them into the feeding bin one by one. The utility model can add them to the feeding bin continuously and slowly according to the needs, and the total amount of transmission can be controlled by the screw feeder, which also avoids the dust pollution caused by direct pipeline delivery or open mixing and stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the mixing bin of the utility model;

[0017] Figure 3 This is a schematic diagram of the discharge port structure of the mixing bin of the utility model;

[0018] Figure 4 This is a schematic diagram of the turntable structure at the end of the mixing bin of the utility model.

[0019] In the figure: 1. mixing bin; 2. frame leg; 3. fixed seat; 4. discharge port; 5. turntable; 6. motor; 7. upper cover; 8. feed port; 9. spiral feeder; 10. first discharge pipe; 11. second discharge pipe; 12. servo motor; 13. feeding bin; 14. feed pipe; 15. frame; 16. rotating shaft; 17. spiral stirring shaft; 18. bearing; 19. bin plate; 20. sliding frame; 21. sliding rod; 22. center gear; 23. first side gear; 24. second side gear. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The utility model provides a mixing device for modified plastic production, which mainly includes three parts, a feeding bin 13, a screw feeder 9 and a mixing bin 1, wherein the screw feeder 9 is used to transfer the raw materials in the feeding bin 13 to the mixing bin 1. The main problem solved by the utility model is to improve the automation of feeding to mixing, and reduce the dust pollution caused by the feeding and transmission process.

[0022] For the device provided by the utility model, please refer to Figure 1-4 , detailed introduction is given below.

[0023] A mixing device for the production of modified plastics, first of all, a feeding bin 13 is set through a frame 15. The feeding bin 13 adopts a bucket-shaped design, and realizes the downward transmission of raw materials based on the action of gravity. A second feeding pipe 11 is set at the bottom of the feeding bin 13, including a baffle set here to realize opening and closing, and control the falling of materials. In some embodiments, a cover plate can be set to seal the feeding bin 13, so as to avoid the spillage of dusty raw materials and cause pollution. Furthermore, a feed port 14 is set on the cover plate. The feed port 14 can be used for feeding, pouring or connecting pipelines. Connected to the second feeding pipe 11 is a screw feeder 9, which includes a cylinder, and a screw feed rod is set in the cylinder. The screw feed rod is driven by a servo motor 12 at the end of the cylinder. The other end of the spiral feeder 9 is connected to a first feed pipe 10, which is connected to the feed port 8, so that the material enters the mixing bin 7 for mixing and stirring. It should be noted that the spiral feeder 9 can achieve preliminary mixing and stirring. In some improved methods, the feed port 14 on the feed bin 13 is set to multiple, so that the first mixing is achieved while feeding synchronously. For the mixing bin 1, Figure 1 and Figure 2The left end shown is fixed with a motor 6. The motor 6 drives the turntable 5 to work. The turntable 5 is nested on the end side wall of the mixing bin 1 and can be set by a rotating shaft 16. Based on the other side of the turntable 5, a spiral stirring shaft 17 is connected. The other end of the spiral stirring shaft 17 is fixed to the other end side plate of the mixing bin 1 through a bearing. It is pointed out again that the spiral stirring shaft 17 is used for mixing the mixed materials. For the raw materials of powder, a rigid material can be used. For the raw materials of granular form, the material can also be set to be elastic, such as a spring shape, etc., to avoid excessive grinding of the particles and dust pollution in the simple mixing process. For example, the secondary modification of the masterbatch is only to change certain additives during the hot melt reshaping process.

[0024] Combination Figure 4 Another implementation structure shown in the figure adopts double-helix stirring to achieve a better mixing effect. The motor 6 drives the central gear 22. A first side gear 23 is provided on one side of the central gear 22, and a second side gear 24 is provided on the other side of the central gear 22. The adjacent gears are meshed. The gear shafts of the first side gear 23 and the second side gear 24 both penetrate and extend into the interior of the mixing bin 1. A spiral stirring shaft 17 is installed inside the first side gear 23 and the second side gear 24.

[0025] Further introduction, the lower part of the mixing bin 1 is provided with a discharge port 4, and the discharge port 4 is controlled to open and close by a bin plate 19. The simplest way of the bin plate 19 is a pull-out type, which can be directly pulled out to discharge materials after mixing and stirring, or the discharge port 4 can be aligned with the entrance (thermoplastic equipment) of the next process (melting and extruding into elongated plastic strips). The discharge bin plate 19 can also be matched with a sliding frame 20 to limit its sliding position, including opening and closing through a connection with a sliding rod 22, and the sliding rod 22 includes a telescopic rod set as an electric telescopic device.

[0026] In order to arrange the material mixing bin reasonably, the mixing bin is suspended by a frame 15, and the frame includes telescopically adjustable frame legs 2, and the bottom of the frame legs includes a fixed seat 3, and the fixed seat 3 is fixed.

Claims

1. A mixing device for modified plastic production, comprising a loading bin (13), wherein the loading bin (13) is connected to a mixing bin (1), characterized in that: The raw materials in the feeding bin (13) are transferred to the mixing bin (1) via a screw feeder (9). The mixing bin (1) is provided with a motor (6), and the motor (6) is used to drive a turntable (5) located at the end of the mixing bin (1). The turntable (5) is embedded in the side wall of the mixing bin (1). On the inner side of the mixing bin (1), the turntable (5) is connected to a spiral stirring shaft (17). The bottom of the mixing bin (1) is provided with a discharge port (4) and a bin plate (19) for closing the discharge port (4).

2. The mixing device for modified plastic production according to claim 1, characterized in that: The screw feeder (9) comprises a barrel and a screw feed rod located inside the barrel, wherein the screw feed rod is driven by a servo motor (12) at the end of the barrel.

3. The mixing device for modified plastic production according to claim 1, characterized in that: The loading bin (13) is supported by a frame (15).

4. The mixing device for modified plastic production according to claim 2, characterized in that: The second feed pipe (11) on the spiral feeder (9) is connected to the bottom of the feed bin (13), and an opening and closing baffle is provided at the connection.

5. The mixing device for modified plastic production according to claim 1, characterized in that: The spiral stirring shaft (17) in the mixing bin (1) includes one or more spiral stirring shafts (17), and also includes the spiral stirring shaft (17) being arranged in a spring shape and made of elastic material.

6. The mixing device for modified plastic production according to claim 1, characterized in that: The spiral stirring shaft (17) is driven by the turntable (5), and the other end is arranged through a bearing (18) located on a side wall of the mixing bin (1).

7. The mixing device for modified plastic production according to claim 1, characterized in that: The mixing bin (1) comprises an upper cover (7) and a feed port (8), and the feed port (8) is connected to one end of a screw feeder (9).

8. The mixing device for modified plastic production according to claim 1, characterized in that: The bin plate (19) at the bottom of the mixing bin (1) may be configured as a pull-out type or an electrically controlled type. The electrically controlled type uses an electric telescopic rod to drive the bin plate (19) to move within the sliding frame (20).

9. The mixing device for modified plastic production according to claim 1, characterized in that: The mixing bin (1) is suspended by a frame, the frame (15) includes telescopically adjustable frame legs (2), and the bottom of the frame legs (2) includes a fixed seat (3).

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