CN211221555U

CN211221555U - Plastic granulator

Info

Publication number: CN211221555U
Application number: CN201922284735.2U
Authority: CN
Inventors: 彭道林
Original assignee: Guangdong East Science And Technology Co ltd
Current assignee: Guangdong East Science And Technology Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-08-11
Anticipated expiration: 2029-12-18

Abstract

The utility model relates to a plastic granulator. The device comprises a shell, wherein a partition plate is arranged in the middle of the shell, a circular concave hole is formed in the upper end face of the middle of the partition plate, a circular perforation is formed in the middle of the bottom surface of the circular concave hole, the circular concave hole is connected with a discharging block, and the discharging block is provided with a discharging hole; a flow guide body is arranged in the shell, the lower end of the flow guide body is connected with the upper end of the discharging block, and the upper end of the flow guide body is connected with the shell; the lower end surface of the flow guide body is connected with a heating wire which is abutted against the flow guide body, and the lower end of the heating wire is provided with a heat insulation layer; the shell is connected with a lifting device, the lifting device is provided with a lifting rod, the lifting rod extends into the shell and is connected with a piston block, the lower end of the piston block is provided with a circular table part matched with the flow guide body, the shell is provided with a material cutting device, and the material cutting device is positioned below the material outlet block; the upper end of the side surface of the shell is provided with a feeding hole. The utility model discloses a set up the heater strip inside the casing for the heat of heating is mostly absorbed by the plastic raw materials, improves the heat utilization efficiency.

Description

Plastic granulator

Technical Field

The utility model relates to a plastic grain production technical field especially relates to a plastic granulator.

Background

When the existing plastic is produced, raw materials are added into a hopper, then the raw materials are mixed and heated in a screw extruder, so that the raw materials are softened at high temperature, then the raw materials are cooled through a die head to form strip-shaped plastic, and then the strip-shaped plastic is cut by a cutter, so that plastic particles are formed; the heating device on the screw extruder is generally arranged outside the extruder body, and heat is transferred to the internal plastic through the extruder body; in order to reduce heat loss, a layer of heat insulating layer or heat preservation layer is wrapped outside the heating device, and the application number is as follows: CN2019211713355, entitled as a utility model document of a plastic granulator, because the heating device is arranged on the outer layer of the machine body, the thermal resistance is inevitably large in the heat transfer process; secondly, even if the heat-insulating layer is coated, the heat-insulating layer is arranged outside and is easily influenced by the environment, and a large amount of heat is still dissipated; resulting in low overall heat utilization and higher cost.

Disclosure of Invention

An object of the utility model is to provide a higher plastic granulator of heat utilization ratio to prior art not enough.

A plastic granulator comprises a shell, wherein a partition plate is arranged in the middle of the shell, a round concave hole is formed in the upper end face of the middle of the partition plate, a round perforation is formed in the middle of the bottom surface of the round concave hole, the round concave hole is connected with a cylindrical discharging block, and a plurality of discharging holes are formed in the middle of the discharging block; a conical flow guide body is arranged in the shell, the lower end of the flow guide body is connected with the upper end of the discharging block, and the upper end of the flow guide body is connected with the shell; the lower end surface of the flow guide body is connected with a heating wire which is abutted against the flow guide body, and the lower end of the heating wire is provided with a heat insulation layer; the upper end of the shell is connected with a lifting device, the lifting device is provided with a lifting rod, the lifting rod extends into the shell and is connected with a piston block, the lower end of the piston block is provided with a circular table part matched with the flow guide body, the shell is provided with a material cutting device below the partition plate, and the material cutting device is positioned below the material discharging block; the upper end of the side surface of the shell is provided with a feeding hole.

Furthermore, the lifting device is an air cylinder which is fixed on the shell through an air cylinder seat, a through hole is formed in the upper end of the shell, a push rod of the air cylinder is a lifting rod, and the lower end of the lifting rod is fixedly connected with the piston block.

Furthermore, the middle part of the discharging block is connected with a guide rod, the middle part of the piston block is provided with a guide groove matched with the guide rod, and the upper end of the guide rod penetrates through the guide groove to be connected with the shell.

Furthermore, a sealing groove is formed in the side face of the lower end of the guide groove, and an annular sealing ring is arranged in the sealing groove.

Preferably, the side of the middle part of the piston block is provided with a clamping groove, and an annular sealing ring is also arranged in the clamping groove.

Furthermore, the inner end part of the feeding hole is provided with a gap, and the upper end of the gap is hinged with a sealing door for covering the feeding hole through a rotating shaft.

Preferably, a hopper is connected to the outer end of the feed inlet.

Furthermore, the shell is provided with a through hole below the partition plate, the inner end of the through hole is connected with a filter screen, the through hole is connected with an exhaust pipe, the middle part of the exhaust pipe is connected with a fan, and the outer end part of the exhaust pipe is inserted into the purification container.

Preferably, the cutting device comprises a cutter and a driving motor for driving the cutter to rotate, the driving motor is positioned outside the shell, and the cutter is connected with the driving motor through a rotating shaft; the two sides below the cutter are respectively provided with an opening and closing block, and the opening and closing blocks are connected with the shell through hinges; the lower end of the opening and closing block is connected with an opening and closing cylinder, and the bottom of the shell is provided with a valve.

The utility model has the advantages that: the utility model discloses a set up the heater strip inside the casing for the heat of heating is mostly absorbed by the plastic raw materials, improves the heat utilization efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

The reference numerals include:

1-cylinder; 2-guide bar; 3-lifting rod; 4-piston block; 5-sealing ring; 6-hopper; 7-sealing the door; 8-heating wire; 9-insulating layer; 10-a housing; 11-a filter screen; 12-a fan; 13-exhaust pipe; 14-a purge vessel; 15-open and close the block; 16-opening and closing cylinder; 17-a valve; 18-a hinge; 19-a cutter; 20-a separator; 21-discharging block; 22-current carrier.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings. As shown in fig. 1.

Example (b): see fig. 1.

A plastic granulator comprises a shell 10, wherein a partition plate 20 is arranged in the middle of the shell 10, a circular concave hole is formed in the upper end face of the middle of the partition plate 20, a circular through hole is formed in the middle of the bottom face of the circular concave hole, the circular concave hole is connected with a cylindrical discharging block 21, and a plurality of discharging holes are formed in the middle of the discharging block 21; a conical guide body 22 is arranged in the shell 10, the lower end of the guide body 22 is connected with the upper end of the discharging block 21, and the upper end of the guide body 22 is connected with the shell 10; the lower end surface of the flow guide body 22 is connected with a heating wire 8, the heating wire 8 is abutted against the flow guide body 22, and the lower end of the heating wire 8 is provided with a heat preservation layer 9; the upper end of the shell 10 is connected with a lifting device, the lifting device is provided with a lifting rod 3, the lifting rod 3 extends into the shell 10 and is connected with a piston block 4, the lower end of the piston block 4 is provided with a circular table part matched with the flow guide body 22, the shell 10 is provided with a cutting device below the partition plate 20, and the cutting device is positioned below the discharging block 21; the upper end of the side surface of the shell 10 is provided with a feeding hole.

When the technical scheme works, the piston block 4 is positioned at the upper end of the inner space of the shell 10 and at the upper end of the feeding hole, and the processing raw materials are immersed into the shell 10 from the feeding hole and positioned above the flow guide body 22 and the discharging block 21; then, the feed inlet is closed, the heating wire 8 works and heats, when the device is specifically arranged, the shell 10 is provided with a threading hole, the power end of the heating wire 8 is connected with a wire, and the switch or the control end is arranged outside the shell 10, which is not described again in the prior art; the guide block is made of metal or other heat conducting materials, heat is transferred into the upper space in the shell 10 through the guide block and processes the raw materials, when the state of the raw materials is changed into a molten state, the lifting device drives the piston to descend, the piston gradually approaches the raw materials, and the raw materials are extruded into the discharge hole of the discharge block 21; forming strip-shaped plastic, and then cutting the plastic into plastic particles by a cutting device. This technical scheme adopts the piston structure to replace present screw rod pay-off structure, and simultaneously, heater strip 8 sets up inside casing 10, specifically is located the below of water conservancy diversion piece, and has heat preservation 9 and casing 10 to insulate against heat as two-layer, does not receive the external environment influence for heat utilization ratio obtains improving. The blanking device can adopt the prior art. The heat insulation layer 9 can be made by the prior art, such as a ceramic layer.

Further, elevating gear is cylinder 1, and cylinder 1 is fixed in casing 10 through 1 seat of cylinder, the upper end of casing 10 is equipped with the perforation, and the push rod of cylinder 1 is lifter 3, and the lower extreme and the piston block 4 fixed connection of lifter 3.

The lifting device is arranged as the cylinder 1, the action is quick, and the operation is convenient. Of course other means may be used for the lifting device.

Further, the middle part of the discharging block 21 is connected with a guide rod 2, the middle part of the piston block 4 is provided with a guide groove matched with the guide rod 2, and the upper end of the guide rod 2 penetrates through the guide groove to be connected with the shell 10.

The guide rods 2 are arranged, so that the piston block 4 can move up and down with good stability, and preferably, 2 or 3 guide rods 2 are arranged to prevent the piston block 4 from shaking in the moving process.

Furthermore, a sealing groove is formed in the side face of the lower end of the guide groove, and an annular sealing ring 5 is arranged in the sealing groove.

Because the precision of present processing is not very high, still has certain clearance between guide way and the guide bar 2, when the plastic raw materials is heated into molten state, during the removal process of piston block 4 extrusion plastic raw materials downwards, for example can lead to the plastic raw materials to flow to the clearance between guide bar 2 and the guide way, for avoiding this condition, has set up seal groove and sealing washer 5, and the seal groove is close to terminal surface down.

Preferably, the side of the middle part of the piston block 4 is provided with a clamping groove, and an annular sealing ring 5 is also arranged in the clamping groove.

During the process, the raw material is heated at the flow guide 22 and is in a molten state, and when the piston block 4 moves downwards, if a gap exists between the piston block 4 and the housing 10, the raw material may move upwards through the gap, and the effect of pushing the material cannot be achieved. In order to prevent the raw material from flowing above the shell 10 when the piston extrudes the molten raw material, the technical scheme is provided with a sealing ring 5 on the side surface of the piston block 4. The seal ring 5 abuts against the inner surface of the housing 10 to form a seal.

Further, the inner end part of the feeding hole is provided with a gap, and the upper end of the gap is hinged with a sealing door 7 for covering the feeding hole through a rotating shaft.

When no material enters the sealing door 7, the sealing door 7 keeps a vertical state and is abutted against the shell 10 under the action of the gravity of the sealing door 7, and the feeding hole is blocked; thereby avoiding external interference.

Preferably, a hopper 6 is connected to the outer end of the feed inlet.

The hopper 6 is provided for loading.

Further, a through hole is formed in the casing 10 below the partition plate 20, the inner end of the through hole is connected with the filter screen 11, the through hole is connected with the exhaust pipe 13, the middle of the exhaust pipe 13 is connected with the fan 12, and the outer end of the exhaust pipe 13 is inserted into the purification container 14.

The purifying container 14 can contain alkaline liquid, alcohol and the like, and when plastics are processed, harmful substances can be released, so that the technical scheme is provided with the purifying device for reducing the harm to human bodies.

Preferably, the material cutting device comprises a cutter 19 and a driving motor for driving the cutter 19 to rotate, the driving motor is positioned outside the shell 10, and the cutter 19 is connected with the driving motor through a rotating shaft; the two sides below the cutter 19 are respectively provided with an opening and closing block 15, and the opening and closing blocks 15 are connected with the shell 10 through hinges 18; the lower end of the opening and closing block 15 is connected with an opening and closing cylinder 16, and the bottom of the shell 10 is provided with a valve 17.

Blank device can be prior art, sets up the piece 15 that opens and shuts in 19 below cutters for can save the plastic grain of cutting in the casing 10, avoid the plastic material to drop outward always, be favorable to collecting.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A plastic granulator, characterized in that: the device comprises a shell, wherein a partition plate is arranged in the middle of the shell, a circular concave hole is formed in the upper end face of the middle of the partition plate, a circular perforation is formed in the middle of the bottom surface of the circular concave hole, the circular concave hole is connected with a cylindrical discharging block, and a plurality of discharging holes are formed in the middle of the discharging block; a conical flow guide body is arranged in the shell, the lower end of the flow guide body is connected with the upper end of the discharging block, and the upper end of the flow guide body is connected with the shell; the lower end surface of the flow guide body is connected with a heating wire which is abutted against the flow guide body, and the lower end of the heating wire is provided with a heat insulation layer; the upper end of the shell is connected with a lifting device, the lifting device is provided with a lifting rod, the lifting rod extends into the shell and is connected with a piston block, the lower end of the piston block is provided with a circular table part matched with the flow guide body, the shell is provided with a material cutting device below the partition plate, and the material cutting device is positioned below the material discharging block; the upper end of the side surface of the shell is provided with a feeding hole.

2. A plastics material pelletiser as claimed in claim 1, wherein: the lifting device is a cylinder, the cylinder is fixed on the shell through a cylinder seat, a through hole is formed in the upper end of the shell, a push rod of the cylinder is a lifting rod, and the lower end of the lifting rod is fixedly connected with the piston block.

3. A plastics granulator according to claim 2, wherein: the middle part of the discharging block is connected with a guide rod, the middle part of the piston block is provided with a guide groove matched with the guide rod, and the upper end of the guide rod penetrates through the guide groove to be connected with the shell.

4. A plastics granulator according to claim 3, wherein: the lower extreme side of guide way is equipped with the seal groove, is equipped with annular sealing washer in the seal groove.

5. A plastics material pelletiser as claimed in claim 1, wherein: the side of the middle part of the piston block is provided with a clamping groove, and an annular sealing ring is also arranged in the clamping groove.

6. A plastics material pelletiser as claimed in claim 1, wherein: the inner end part of the feed inlet is provided with a gap, and the upper end of the gap is hinged with a sealing door for covering the feed inlet through a rotating shaft.

7. A plastics granulator according to claim 1 or 6, wherein: the outer end part of the feed inlet is connected with a hopper.

8. A plastics material pelletiser as claimed in claim 1, wherein: the casing has seted up the through-hole in the below of baffle, and the inner of through-hole is connected with the filter screen, and the through-hole is connected with the blast pipe, and the middle part of blast pipe is connected with the fan, and the outer tip of blast pipe inserts in the purification container.

9. A plastics material pelletiser as claimed in claim 1, wherein: the cutting device comprises a cutter and a driving motor for driving the cutter to rotate, the driving motor is positioned outside the shell, and the cutter is connected with the driving motor through a rotating shaft; the two sides below the cutter are respectively provided with an opening and closing block, and the opening and closing blocks are connected with the shell through hinges; the lower end of the opening and closing block is connected with an opening and closing cylinder, and the bottom of the shell is provided with a valve.