CN205058352U - Hot pelleter - Google Patents

Abstract

The application discloses a hot granulator, which includes an extrusion die, a granulation box and a motor. Plane, the motor is fixed on the granulation box through the motor base, the shaft head of the motor is fixed with the granulation knife shaft, the granulation knife shaft extends in the motor base and its end is equipped with a fixed knife holder, and the fixed knife holder is installed with The rotary knife rest is equipped with a granulation knife, and the compression spring for pressing the granulation knife on the discharge plane is arranged between the fixed knife rest and the granulation knife shaft. The motor base, the granulation knife shaft and the A first air passage, a second air passage and a third air passage connected to each other are sequentially opened on the rotary knife holder, and the first air passage is connected with an external air source. The hot granulator of the utility model can solve the problem that the materials stick to each other or the material sticks to the cutting knife to affect the granulation effect, thereby effectively improving the production efficiency; at the same time, it solves the problem that the granulation status cannot be observed in real time during the granulation process.

Description

A hot granulator

technical field

The application relates to a plastic pelletizer, in particular to a thermal pelletizer.

Background technique

Pelletizing is an essential process in the plastic extrusion granulation production line. The pelletizing process is divided into hot pelletizing and cold pelletizing. Cold pelletizing uses water as the cooling medium, generally divided into underwater pelletizing, water ring pelletizing or soaking pelletizing, especially water ring pelletizing, the cooling water is constantly hitting the extrusion die, resulting in deformation of plastic particles , the particles are not full. And no matter which way, the cut particles will be dehydrated, and there is a problem that the water content of the finished particles is too high. For hot pelletizing, as long as the material comes out of the extrusion die, it will be cut into pellets by a grinding cutter, and then sent to the silo after being cooled. The problem of sticking together or sticking to the cutter when the extrusion die comes out affects the output. The general hot granulator has a closed structure, and it is impossible to observe the granulation situation intuitively during speed regulation and production.

Utility model content

The purpose of this utility model is to provide a hot granulator to overcome the deficiencies in the prior art.

In order to achieve the above object, the utility model provides the following technical solutions:

The embodiment of the present application discloses a hot granulator, which includes an extrusion die, a granulation box and a motor, the granulation box is installed between the extrusion die and the motor, the granulation box and the extruder A discharge plane is formed between the outlet moulds, the motor is fixed on the pelletizing box through the motor base, the shaft head of the motor is fixed with a pelletizing knife shaft, and the pelletizing knife shaft extends from the motor base Inside and at its end, a fixed knife rest is provided, a rotating knife rest is installed on the fixed knife rest, a granulating knife is arranged on the rotating knife rest, and there is a set between the fixed knife rest and the granulating knife shaft for The compression spring that the pelletizing knife presses on the discharge plane, the first air passage, the second air passage and the third air passage that communicate with each other are sequentially opened on the motor base, the pelletizing knife shaft and the rotary knife holder , the first air channel is connected with an external air source.

Preferably, in the above hot granulator, the upper end of the granulation box is provided with a lighting lamp, the lower end of the granulation box is connected with a granulation cover, and the granulation box and the granulation cover have a connected Cavity, the side wall of the pelletizing hood is provided with a pelletizing hood sight glass.

Preferably, in the above hot granulator, an observation mirror is arranged on the side wall of the granulation box.

Preferably, in the above hot granulator, the exterior of the lighting lamp is covered with a lampshade.

Preferably, in the above hot granulator, the second air passage and the third air passage are communicated through air pipes.

Compared with the prior art, the utility model has the advantages that: the hot granulator of the utility model can solve the problem that the materials stick to each other or the material sticks to the cutter and affects the granulation effect, thereby effectively improving the production efficiency; at the same time Solve the problem that the granulation status cannot be observed in real time during the granulation process.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in this application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Shown in Fig. 1 is the sectional view of hot granulator in the specific embodiment of the utility model;

Shown in Fig. 2 is the front view of hot granulator in the specific embodiment of the utility model;

Fig. 3 shows the side view of hot granulator in the specific embodiment of the utility model;

Fig. 4 shows the side view of pelletizing knife in the specific embodiment of the utility model;

Fig. 5 is an enlarged schematic diagram of a pelletizing knife in a specific embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Figures 1 to 5, the hot granulator includes an extrusion die 13, a granulation box 12 and a frequency conversion motor 1, and the extrusion die 13 is connected to the extruder. The pelletizing box 12 is installed between the extrusion die 13 and the motor 1, a discharge plane 131 is formed between the pelletizing box 12 and the extrusion die 13, and the motor 1 is fixed on the pelletizing box 12 through the motor base 2 . A bearing 4 and a sealing ring 5 are arranged inside the motor base 2 .

The shaft head of the motor 1 is fixed with a pelletizing knife shaft 3, which extends in the motor base 2 and is provided with a fixed knife rest 7 at its end, and a rotating knife rest 8 is installed on the fixed knife rest 7, and the rotating knife rest 8 8 is provided with a pelletizing knife 9, the pelletizing knife 9 is arranged on the inclined surface of the rotating knife rest 8, and a pressure plate for pressing the pelletizing knife on the discharge plane is arranged between the fixed knife rest 7 and the pelletizing knife shaft 3. Tighten the spring 6.

The first air passage 201 , the second air passage 301 and the third air passage 801 which communicate with each other are provided in sequence on the motor base 2 , the pelletizing knife shaft 3 and the rotary knife holder 8 , and the first air passage 201 is connected with an external air source. The second airway communicates with the third airway through a trachea 302 .

The upper end of the pelletizing box 12 is provided with an illuminating lamp 11, and the outside of the illuminating lamp is covered with a lampshade 10, and the lower end of the pelletizing box 12 is connected with a pelletizing cover 14, and the pelletizing box 12 and the pelletizing cover 14 have a connected cavity. , The side wall of the pelletizing hood is provided with a pelletizing hood sight glass 15 . A viewing mirror 16 is provided on the side wall of the pelletizing box body 12 .

Close the hot granulator, the granulator 9 is tightly attached to the discharge plane 131 of the extrusion die 13 under the action of the compression spring 6, and the air source is connected to the first air channel 201 on the motor base 2. Pass, the compressed air passes through the first air channel 201, passes through the second air channel 301, blows to the pelletizing knife 9 and the discharge plane 131 through the air pipe 302 and the third air channel 801, and turns on the power supply of the lighting lamp 11. Start the frequency conversion motor 1, and the frequency conversion motor 1 is brought to the pelletizing knife 9 on the rotary knife holder 8 by the pelletizing knife shaft 3 to rotate on the discharge plane 131. When the material reaches the discharge plane 131 through the extrusion die 13, The particles are cut into particles by the fast rotating pelletizing knife 9, and the finished particles enter the receiving hopper through the pelletizing cover 14. During the pelletizing process, the compressed air has been acting on the pelletizing knife 9 and the discharge plane 131, and the extruded materials are quickly cooling, so that it will not stick together, the pelletizing knife 9 will quickly absorb heat and become hot during the pelletizing process, the material is easy to stick to it, and the life of the blade is reduced. Continuous cooling by compressed air can be very good solve this problem.

When the granulator starts to work, the particles cannot be formed immediately, and the specific conditions inside the granulator cannot be observed after the granulator is closed. By installing the lighting 11 and the observation mirror 16 on the granulation box 12, the granulation process can be seen at a glance. , By adjusting the extrusion speed and the speed of the variable frequency motor, the particles can be formed quickly, which avoids repeatedly opening the pelletizer to observe the pelletizing situation, and improves the work efficiency. At the same time, it is possible to observe whether the pelletizing cover is blocked by the pelletizing cover sight glass on the pelletizing cover 14, so as to avoid blocking due to accidental reasons.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above description is only the specific implementation of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, some improvements and modifications can also be made. It should be regarded as the protection scope of this application.

Claims (5)

1. a hot granulator, it is characterized in that, comprise extrusion die, pelletizing casing and motor, described pelletizing casing is installed between described extrusion die and motor, a discharging plane is formed between described pelletizing casing and extrusion die, described motor is fixed on described pelletizing casing by motor cabinet, the spindle nose of described motor is fixed with pelletizing cutter shaft, this pelletizing cutter shaft extends in described motor cabinet and its end is provided with immovable support, described immovable support is provided with swivelling tool-holder, described swivelling tool-holder is provided with grain-cutter, the holddown spring for being pressed in by described grain-cutter in discharging plane is provided with between described immovable support and pelletizing cutter shaft, described motor cabinet, pelletizing cutter shaft with swivelling tool-holder offers successively the first air flue be connected, second air flue and the 3rd air flue, described first air flue is connected with external air source.

2. hot granulator according to claim 1; it is characterized in that: described pelletizing casing upper end is provided with illuminating lamp; the lower end of described pelletizing casing is connected with grain cutting cover, and described pelletizing casing and grain cutting cover have the cavity communicated, and the sidewall of described grain cutting cover are provided with grain cutting cover visor.

3. hot granulator according to claim 2, is characterized in that: the sidewall of described pelletizing casing is provided with peephole.

4. hot granulator according to claim 2, is characterized in that: the external lid of described illuminating lamp has lampshade.

5. hot granulator according to claim 1, is characterized in that: be communicated with by tracheae between described second air flue and the 3rd air flue.