A masterbatch cutting and packaging device

Abstract

The invention discloses a master batch dicing and packing device, belonging to the technical field of master batch production equipment, comprising a dicing mechanism and a packing mechanism. It includes a roller, a knife slot is arranged on the roller, and ≥15 knife bodies with blades are arranged in the knife slot; a particle screening mechanism is arranged between the pelletizing mechanism and the packing mechanism; The particle screening mechanism includes a screen, a fan and a particle collection bag, and the screen is provided with a vibration device; the packaging mechanism includes a funnel with a discharge port at the bottom, and a packaging bag sealing machine is provided below the discharge port. A conveying wheel is arranged below the discharge port, and a shaking device is arranged on the conveying wheel; the hob of the device of the present invention is easy to maintain and replace, has traction capability, has fast dicing speed and high quality, and can perform different screening of large and small particles. And synchronous drying and cooling, high efficiency of packaging bags, small footprint and convenient operation.

Description

technical field [0001] The invention relates to the technical field of masterbatch production equipment, in particular to a masterbatch cutting and packaging device. Background technique [0002] The full name of masterbatches (English name Masterbatches) is plastic masterbatches. It is a plastic processing aid developed in the 1980s. It is composed of excessive chemical additives, carrier resins and dispersants. At present, the general process of granulation in the industry is as follows: After the raw materials for masterbatch production are heat-treated to form a melt, they are then extruded into strip-shaped semi-finished plastic strips through the die head of the extruder, and the plastic strips are cooled and then pelletized by a pelletizing device. Processing to obtain granular masterbatch. [0003] Existing granulation devices mostly adopt the design of rotating hob and fixed knife. The limit cutting speed of this method should not be too high and an additional plas...

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Problems solved by technology

[0003] Existing granulation devices mostly adopt the design of rotating hob and fixed knife. The limit cutting speed of this method should not be too high and an additional plastic masterbatch conveying device is required. In addition, the cutting torque should not be too large or it will easily collapse. blade problem

[0004] Most of the hobs of the existing pelletizing devices are integrated design, so after any blade is worn or chipped, the whole hob needs to be replaced, otherwise the product quality will be affected, which will lead to the failure of this integrated hob. The service life is short, the cost of equipment use and maintenance remains high, and it causes waste of resources. If the whole hob is dismantled and sharpened, it will take more time and the outer size of the hob after sharpening will be reduced, so it must be rolled again. Knife positioning, cumbersome operation, time-consuming and labor-intensive

[0005] The partial adhesion and fragmentation of the masterbatch of some materials during the manufacturing process will produce particles with a size exceeding or below the standard specification, which will affect the product quality, and the current screening device often cannot distinguish between the particles that are too large and the particles that are too small , so it cannot be classified and processed. In addition, there are problems that the size of the screen hole cannot be adjusted at any time, and the volume of the equipment and the occupied area are too large.

[0006] Since the masterbatch of some materials needs to be cooled with cooling liquid during the manufacturing process, there will be some moisture in the masterbatch. In the existing process, it is often necessary to set up a separate special drying and dehydration link, which cannot be realized in pelletizing or Drying and dehydration are carried out synchronously during the screening process, which makes it difficult to improve production efficiency

[0007] Due to the loose granular structure of the masterbatch, the existing masterbatch packaging operation will make the structure of the masterbatch in the bag loose and there will be a large gap, which will affect the capacity of a single packaging bag, resulting in low packaging efficiency and wasteful packaging resource

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