CN220808084U - Granulating machine - Google Patents

Abstract

The utility model discloses a granulator, and relates to the field of plastic molding. The improved cooling device is characterized in that the spiral groove is arranged on the charging barrel, the thickness of the wall of the charging barrel can be reduced, the heat dissipation area of the charging barrel can be increased, and the heat dissipation effect of the charging barrel can be improved. The material cylinder is provided with the exhaust hole, the exhaust hole can exhaust water vapor generated after the raw materials with water are melted, and meanwhile, the exhaust hole can directly exhaust heat outwards, so that the heat dissipation effect can be further improved.

Description

Granulating machine

Technical Field

The utility model discloses a granulator, and relates to the field of plastic molding.

Background

A granulator is a forming machine that can produce materials into specific shapes. The granulating process is to convey and compact the plastic raw material by means of the extruder screw and further heat the melting table, so that the plastic is in a completely uniform plasticizing state, and then extruding, molding and cooling the plastic by a die head under the thrust of the screw. During operation, the granulator must be controlled by taking care of temperature, because raw materials can exist at too low a temperature, heating is needed, coke materials can exist at too high a temperature, and heat dissipation is needed.

The conventional heat sink is a granulator heat sink disclosed in CN202020492409.0, for example, by air cooling. The heat dissipation device of the air cooling device mainly takes away heat by virtue of flowing air, and the actual effect is not obvious in practice.

Disclosure of utility model

In order to overcome the problems, the utility model provides a granulator, which aims to improve a heat dissipation structure so as to improve the heat dissipation effect of the granulator.

Specifically, the utility model provides a granulator which is provided with a charging barrel and a screw rod arranged in the charging barrel, wherein the charging barrel is provided with a charging hole and a discharging hole, raw materials enter through the charging hole and are extruded from the discharging hole through the conveying of the screw rod, and a cooling fan cover is wrapped outside the charging barrel and connected with a fan.

Further, the copper pipe which is arranged along the spiral groove and surrounds the charging barrel is arranged on the surface of the charging barrel, and can be used for cooling through water, so that the cooling effect is further improved.

Further, the spiral groove is divided into two sections, one section is adjacent to the feed inlet and is a feed inlet section spiral groove, the other section is adjacent to the discharge outlet and is a discharge outlet section spiral groove, and the pitch of the discharge outlet section spiral groove is smaller than that of the feed inlet section spiral groove.

Further, an exhaust hole is formed between the spiral groove of the feeding port section and the spiral groove of the discharging port section of the charging barrel, water vapor generated after the raw materials with water are melted can be discharged through the exhaust hole, and meanwhile, heat can be directly discharged outwards through the exhaust hole, so that the heat dissipation effect can be further improved.

The utility model further comprises a die head, wherein the die head is arranged on the discharge hole, a screen changer is arranged between the discharge hole and the die head, the screen changer is provided with a filter screen, a channel and an oil cylinder, the filter screen and the channel are formed on the same plate body, the oil cylinder is connected with the plate body, and the oil cylinder can drive the plate body to move so that the filter screen or the channel is alternatively transversely arranged between the discharge hole and the die head; when the channel is horizontally arranged in the middle, the material is extruded through the die head after passing through the channel normally by extrusion, and when the filter screen is horizontally arranged in the middle, the material is filtered and then extruded through the die head, so that the material can be filtered.

The utility model has the beneficial effects that the spiral groove is arranged on the charging barrel, so that the thickness of the wall of the charging barrel can be reduced, the heat dissipation area of the charging barrel can be increased, and the heat dissipation effect can be improved.

And, the utility model has three heat dissipation modes:

1. Natural heat dissipation is realized, the thickness of the wall of the material cylinder is reduced through the spiral groove, and the heat dissipation area of the material cylinder is increased;

2. on the 1 st basis, carrying out air cooling and heat dissipation through a fan;

3. on the 2 nd basis, the copper pipe can be used for water cooling.

Compared with the prior art, the heat dissipation device has various heat dissipation modes, and the heat dissipation effect is progressive layer by layer, so that the temperature can be better controlled.

As another effect of the present utility model:

The material cylinder is provided with the exhaust hole, the exhaust hole can exhaust water vapor generated after the raw materials with water are melted, and meanwhile, the exhaust hole can directly exhaust heat outwards, so that the heat dissipation effect can be further improved.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic view of the protective cover of the present utility model in a disassembled configuration;

FIG. 5 is a schematic view of an assembled structure of a cartridge and a cooling fan housing according to the present utility model;

FIG. 6 is a schematic view of the assembled structure of the barrel and screw of the present utility model;

FIG. 7 is a schematic diagram of the assembled structure of the screen changer, die head and blanking apparatus of the present utility model;

Reference numerals:

Barrel 1, feed inlet 1a, discharge outlet 1b, feed inlet section spiral groove 1c, discharge outlet section spiral groove 1d, exhaust hole 1e, flange 101, frame 2, handpiece 201, screw 3, speed reducer 4, protection casing 5, feed hopper 6, die head 7, blanking equipment 8, receiving hopper 9, suction fan 10, cooling fan cover 11, exhaust gas collection box 12, screen changer 13, filter screen 1301, channel 1302, oil cylinder 1303, plate 1304.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings.

Referring to fig. 1 and 7, a granulator of the present embodiment is provided with a feed cylinder 1, wherein the feed cylinder 1 is horizontally disposed, and both ends thereof are provided with flanges 101, and the feed cylinder 1 is fixed on a frame 2 through the flanges 101;

The feeding barrel 1 is internally provided with a screw rod 3 coaxially arranged, the end part of the screw rod 3 is fixed on a machine head 201 of the frame 2, the machine head 201 is connected with a speed reducer 4, and the speed reducer 4 drives the screw rod 3 to rotate in the feeding barrel 1 through the machine head 201;

A heater (not shown) or a surrounding electromagnetic coil (not shown) may be provided at the bottom of the initial section of the cartridge 1 to heat for melting the raw material;

A protective cover 5 is arranged on the frame 2 to cover the charging barrel 1 so as to prevent high-temperature scalding;

A feed inlet 1a is arranged on the outer wall of one end of the feed cylinder 1, the feed inlet 1a is connected with a feed hopper 6 arranged on the frame 2, and materials can conveniently enter through the feed hopper 6;

The end part of the other end of the charging barrel 1 forms a discharging hole 1b, the discharging hole 1b is connected with a die head 7, a material cutting device 8 is arranged outside the die head 7, a material receiving hopper 9 is arranged below the material cutting device 8, and a material sucking fan 10 is arranged below the material receiving hopper 9;

Raw materials enter the feed cylinder 1 through the feed inlet 1a after passing through the feed hopper 6, are extruded from the discharge outlet 1b through the conveying of the screw 3, form an elongated material through the die head 7, are cut into particles by the cutting equipment 8, fall into the receiving hopper 9 and are intensively discharged by the suction fan 10.

As a preferred embodiment, the outside of the charging barrel 1 is wrapped with a cooling fan cover 11, the cooling fan cover 11 is connected with a fan, and air cooling and heat dissipation can be carried out on the charging barrel 1 through the fan.

As a preferred embodiment, the barrel 1 is provided with a spiral groove, which can reduce the wall thickness of the barrel 1 and increase the heat dissipation area of the barrel 1. On this basis, copper pipes (not shown in the figure) can be added to the charging barrel 1, and the copper pipes can be arranged along the spiral grooves to surround the charging barrel 1 for shaping, and the copper pipes can be used for water cooling and further cooling the charging barrel 1.

Preferably, the spiral groove is divided into two sections, one section is adjacent to the feed inlet 1a, the other section is adjacent to the discharge outlet 1b, the other section is adjacent to the feed inlet section spiral groove 1d, the pitch of the discharge outlet section spiral groove 1d is smaller than that of the feed inlet section spiral groove 1c, so that the heat dissipation of the material after the material is adjacent to the discharge outlet 1b is faster, and the heat dissipation and the temperature reduction of the raw material in the feed cylinder 1 are carried out in advance before extrusion cooling.

Preferably, an exhaust hole 1e is formed between the feed port section spiral groove 1c and the discharge port section spiral groove 1d of the feed cylinder 1, and the exhaust hole 1e can exhaust water vapor generated after the raw materials containing water are melted, and simultaneously the exhaust hole 1e can directly exhaust heat outwards, so that the heat dissipation effect can be further improved. On this basis, be connected with exhaust gas collecting box 12 on the exhaust hole 1e, exhaust gas collecting box has the gas pocket that sets up in the side, so after the steam discharge can not scatter to the external world, but can be by the roof guide discharge of exhaust gas collecting box to the gas pocket of side to avoid steam scatter to scald the people.

Preferably, a screen changer 13 is arranged between the discharge port 1b and the die head 7, the screen changer 13 is provided with a filter screen 1301, a channel 1302 and an oil cylinder 1303, the filter screen 1301 and the channel 1302 are formed on the same plate body 1304, the oil cylinder 1303 is connected with the plate body 1304, and the plate body 1304 can be driven to move by the oil cylinder 1303 so that the filter screen 1301 or the channel 1302 is alternatively transversely arranged between the discharge port 1b and the die head 7; when the channel 1302 is horizontally arranged in the middle, the material is extruded through the die head 7 after passing through the channel 1302 normally, and when the filter screen 1301 is horizontally arranged in the middle, the material is filtered and then extruded through the die head 7, and the material can be filtered before extrusion.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will occur to those skilled in the art from consideration of the specification and practice of the utility model without the need for inventive faculty, and are within the scope of the claims.

Claims (5)

1. The utility model provides a granulator, it is equipped with feed cylinder (1) and sets up screw rod (3) inside feed cylinder (1), feed cylinder (1) are equipped with feed inlet (1 a) and discharge gate (1 b), and the raw materials gets into through feed inlet (1 a) and extrudes from discharge gate (1 b) through the transport of screw rod (3), and the outside parcel of feed cylinder (1) has cooling fan housing (11), and fan, its characterized in that are connected to cooling fan housing (11): the charging barrel (1) is provided with a spiral groove.

2. A granulator according to claim 1, wherein: the surface of the charging barrel (1) is provided with a copper pipe which is arranged along the spiral groove around the charging barrel (1), and the copper pipe can be used for water communication and heat dissipation.

3. A granulator according to claim 2, wherein: the spiral groove comprises a feed port section spiral groove (1 c) adjacent to the feed port (1 a) and a discharge port section spiral groove (1 d) adjacent to the discharge port (1 b), and the pitch of the discharge port section spiral groove (1 d) is smaller than that of the feed port section spiral groove (1 c).

4. A granulator according to claim 3, wherein: an exhaust hole (1 e) is arranged between the feed inlet section spiral groove (1 c) and the discharge outlet section spiral groove (1 d) of the feed cylinder (1).

5. A granulator according to claim 1, wherein: including die head (7), die head (7) set up on discharge gate (1 b) to be provided with between discharge gate (1 b) and die head (7) and trade net ware (13), trade net ware (13) and be equipped with filter screen (1301), passageway (1302), hydro-cylinder (1303), filter screen (1301) and passageway (1302) form on same block plate body (1304), hydro-cylinder (1303) connecting plate body (1304), can drive plate body (1304) through hydro-cylinder (1303) and make filter screen (1301) or passageway (1302) alternatively cross between discharge gate (1 b) and die head (7).