CN201446634U - Rubber Extrusion Pelletizer - Google Patents

Abstract

The utility model discloses a rubber extruding and granulating machine, which is used for extruding and granulating processing of natural rubber, comprising a base; a stirring chamber; a granulating chamber, the granulating chamber is fixedly connected with the stirring chamber, There is a discharge plate between the cutting chamber and the mixing chamber; a main shaft driven by the first power device; a set of fixed knives fixedly installed on the surrounding wall of the mixing chamber; a set of moving knives, the The moving knife is fixedly installed on the main shaft and located in the mixing chamber; the flying knife is driven by the second power device, the flying knife is rotatably installed on the main shaft and located in the cutting chamber, the flying knife Tangent to the end face of the discharge plate. Realize the continuous tearing, stirring, mixing and granulation of natural rubber, which improves the production efficiency. The utility model has a reasonable structural design and can replace imported equipment.

Description

Rubber Extrusion Pelletizer

technical field

The utility model relates to a rubber mechanical processing equipment, in particular to an extruding and granulating equipment used for natural rubber.

Background technique

Since there is almost no natural rubber production in my country, the processing of natural rubber and its processing machinery are very unfamiliar to us. We are not clear about the processing technology requirements and the key points of mechanical technology. The initial processing equipment for natural rubber is mainly imported.

Some natural rubbers are flakes, some are cohesive blocks, and some need to add additives during processing, which requires a series of processes such as tearing, stirring, mixing, and granulation. Although extrusion granulation machines are produced in China, these The equipment is mainly for the mixed raw rubber material or film, and the production efficiency is low, so it is not suitable for processing natural rubber.

Utility model content

The technical problem to be solved by the utility model is to provide a rubber extruding granulator, which can continuously tear, stir, mix and granulate natural rubber, and has high production efficiency.

In order to solve the above-mentioned technical problems, the technical solution of the utility model is: rubber extruding granulator, including a base; a mixing chamber, the mixing chamber is fixedly installed on the base, and the mixing chamber is provided with a feeding port; A granulation chamber, the granulation chamber is provided with a discharge port, the granulation chamber is fixedly connected with the stirring chamber, a discharge plate is arranged between the granulation chamber and the stirring chamber, and the discharge plate There are dense discharge holes; a main shaft driven by the first power unit, the main shaft is rotatably installed on a support with a fixed position and runs through the mixing chamber and the granulation chamber; a set of fixed knives, the fixed The knives are fixedly installed on the surrounding wall of the mixing chamber; a group of moving knives are fixedly installed on the main shaft and located in the mixing chamber; the flying knives driven by the second power device rotate Installed on the main shaft and located in the pelletizing chamber, the flying knife is tangent to the end surface of the discharge plate.

Wherein, both the stirring chamber and the granulating chamber adopt a split structure.

Wherein, the movable knife is in a spiral shape.

Wherein, the stirring chamber is cylindrical.

Wherein, the fixed knife and the movable knife are arranged at intervals along the axial direction.

Adopting the above technical scheme, the beneficial effect of the utility model is: due to the design of the spiral moving knife and the fixed knife distributed on the surrounding wall of the mixing chamber, after the natural rubber enters the mixing chamber from the feed port, it will be mixed with the moving knife and the fixed knife. Under the action of the knife, tearing, pushing, mixing additives, generating high temperature to soften the rubber block, and fully mixing with the additives. Due to the design of the discharge plate with dense discharge holes, the mixed rubber material is formed in a certain shape and then discharged and stirred. Chamber. Due to the design of the flying knife rotating around the main shaft, the formed rubber is cut into pieces by the flying knife during the extrusion process. Since the flying knife is close to the discharge plate, the rubber strip will be cut off by the flying knife as soon as it is exposed. , the produced rubber particles are fine and uniform, and do not stick together. If the flying knife is fixed on the main shaft, and the main shaft provides power to cut the rubber strip, granulation can also be realized. However, due to the slow speed of the main shaft, the cut rubber particles are large and the efficiency is low. The flying knife of the scheme is driven separately by the second power device, so that the flying knife speed is not affected by the spindle speed, and can cut out finer and uniform colloidal particles, and the efficiency has been improved. Since the mixing chamber and the cutting chamber are split structures , making it easier to replace and maintain the tool after it wears out during use, and easy to install.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is an enlarged view of the A-A section of Fig. 1;

In the figure: 1. foundation, 2. base, 3. discharge port, 4. motor, 5. exhaust port, 6. flying knife, 7. discharge plate, 8. fixed knife, 9. moving knife, 10. Main shaft, 11, feed inlet, 12, granulation chamber, 13, mixing chamber, 14, the lower body of the mixing chamber, 15, the upper body of the mixing chamber.

Detailed ways

As shown in Fig. 1, Fig. 2 and Fig. 3, a kind of rubber extruding granulator comprises base 2; Stirring chamber 13, and described stirring chamber 13 is fixedly installed on described base 2, and described stirring chamber 13 is provided with There is a feed port 11; a granulation chamber 12, the granulation chamber 12 is provided with a discharge port 3, the granulation chamber 12 is fixedly connected with the stirring chamber 13, the connection between the granulation chamber 12 and the stirring chamber 13 There is a discharge plate 7 between them, and the discharge plate 7 is provided with densely distributed discharge holes; the main shaft 10 driven by the first power device, the main shaft 10 is rotatably installed on a support with a fixed position and runs through the Stirring chamber 13 and described cutting chamber 12; One group of fixed knives 8, described fixed knives 8 are fixedly installed on the peripheral wall of described mixing chamber 13; One group of moving knives 9, described moving knives 9 are fixedly installed on the described On the main shaft 10 and located in the mixing chamber 13; the flying knife 6 driven by the second power unit, the flying knife 6 is rotatably mounted on the main shaft 10 and located in the granulation chamber 12, the flying knife 6 is tangent to the end face of the discharge plate 7 .

Both the stirring chamber 13 and the granulating chamber 12 adopt a split structure.

The movable knife 9 is helical.

The stirring chamber 13 is cylindrical.

The fixed knife 8 and the movable knife 9 are arranged at intervals along the axial direction.

Its working process is as follows:

Take the PB-25 rubber extruding granulator as an example. The rubber extruding granulator is installed on the base 2 fixed on the foundation 1. The main shaft 10 rotates at a speed of 30 revolutions per minute driven by the first power unit. The natural rubber block enters the mixing chamber 13 from the feed port 11, and 18 fixed knives 8 are installed on the surrounding wall of the mixing chamber 13, and 11 spiral moving knives 9 are fixedly installed on the main shaft 10, and the rubber block is fixed on the spiral moving knife. Under the action of 9 and fixed knife 8, it is torn and chopped into small pieces, and stirred together with the additives added at the same time; the high temperature in the mixing chamber 13 softens the natural rubber block, and passes through the mixing chamber 13 and the cutting chamber 12. The set discharge plate 7 forms a rubber strip and enters the pelletizing chamber 12. Four flying knives 6 that rotate along the main shaft 10 and are tangent to the discharge plate 7 are installed in the pelletizing chamber 12. The flying knives 6 are driven by a separate motor. Driven by 4, it rotates at a speed of 600 revolutions per minute, and the rubber strip entering the granulation chamber 12 is cut into columnar thin slices by the high-speed rotating flying knife 6 to achieve uniform granulation, and is discharged from the discharge port 3 below the granulation chamber 12 , the moisture in the sizing material is discharged from the exhaust port 5 above the pelletizing chamber 12 in the form of water vapor. After the cutting tool has been worn for a long time, the mixing chamber 13 and the cutting chamber 12 can be easily opened for repair. For example, the closed mixing chamber 13 is divided into the lower body 14 of the mixing chamber and the upper body 15 of the mixing chamber. The body 15 is opened, so that the movable knife 9 in the mixing chamber 13 is exposed, which can be repaired and repaired conveniently. After the repair is completed, the upper body 15 of the mixing chamber and the lower body 14 of the mixing chamber are fixed, and the original accuracy of the equipment will not be affected after assembly. , shorten the time of disassembly and assembly, so that the equipment can enter the working state as soon as possible.

PB-25 Rubber Extrusion Pelletizer can reach a production capacity of 7 tons per hour, and the rubber particles obtained are fine and uniform, which greatly improves production efficiency.

The utility model is not limited to the specific embodiments described above. For example, the fixed support for the main shaft rotation installation can be two bearing seats, or the side wall of the mixing chamber; the mixing chamber can be divided into two interconnected parts for the convenience of installation or maintenance. one or more chambers; the various transformations made by those skilled in the art starting from the above ideas without creative work all fall within the protection scope of the present utility model.

Claims (5)

1. rubber is extruded pelleter, it is characterized in that: comprise

Base;

Teeter chamber, described teeter chamber are fixedly installed on the described base, and described teeter chamber is provided with charging aperture;

The pelletizing chamber, described pelletizing chamber is provided with discharging opening, and fixedlying connected with described teeter chamber in described pelletizing chamber, is provided with reclaiming plate between described pelletizing chamber and the teeter chamber, and described reclaiming plate is provided with densely covered discharge opening;

By the main shaft that first power set drive, described main shaft rotates on the support member that is installed on fixed-site and runs through described teeter chamber and described pelletizing chamber;

One group of stationary knife, described stationary knife are fixedly installed on the perisporium of described teeter chamber;

One group of moving knife, described moving knife are fixedly installed on the described main shaft and are positioned at described teeter chamber;

By the fly cutter that second power set drive, described fly cutter rotation is installed on the described main shaft and is arranged in described pelletizing chamber, and the end face of described fly cutter and described reclaiming plate is tangent.

2. rubber as claimed in claim 1 is extruded pelleter, it is characterized in that: split-type structural is all adopted in described teeter chamber and described pelletizing chamber.

3. rubber as claimed in claim 2 is extruded pelleter, it is characterized in that: described moving knife is shape in the shape of a spiral.

4. rubber as claimed in claim 3 is extruded pelleter, it is characterized in that: described teeter chamber is cylindric.

5. rubber as claimed in claim 4 is extruded pelleter, it is characterized in that: described stationary knife and moving knife are provided with vertically at interval.

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