CN216832147U

CN216832147U - Plastic extruder

Info

Publication number: CN216832147U
Application number: CN202220055407.4U
Authority: CN
Inventors: 林兴才
Original assignee: Chongqing Haiyu Environmental Protection New Material Co ltd
Current assignee: Chongqing Haiyu Environmental Protection New Material Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-06-28
Anticipated expiration: 2032-01-10

Abstract

The utility model discloses a plastic extruder belongs to plastics production technical field, and its technical scheme main points include barrel, driving motor and screw rod, the heating cylinder has been cup jointed to the outer wall of barrel, and the inner wall of heating cylinder is provided with the heating plate that a plurality of equidistance distribute, the outer wall of barrel is hugged closely to the heating plate, the one end of barrel is provided with the mould, the outer wall winding of mould has the cooling tube, the bottom of barrel is provided with the base, the top of base is provided with coolant tank, one side of coolant tank is provided with the water pump, the inlet tube has been cup jointed to the output of water pump, the one end and the cooling tube of inlet tube are linked together, the outlet pipe has been cup jointed to the one end that the inlet tube was kept away from to the cooling tube, the one end and the coolant tank of outlet pipe are linked together. The utility model discloses be convenient for control the temperature in the barrel, improved the production quality of plastics.

Description

Plastic extruder

Technical Field

The utility model relates to a plastics production technical field, more specifically say that it relates to a plastics extruder.

Background

Plastics are high molecular compounds obtained by polymerization of monomers through addition polymerization or polycondensation, which have moderate deformation resistance between fibers and rubber, and are composed of synthetic resin, fillers, plasticizers, stabilizers, lubricants, pigments and other additives.

Chinese patent publication No. CN210082354U discloses a plastic extruder, which comprises a feeding mechanism, a mixing mechanism and a machine barrel; the feeding mechanism is arranged on one side of the mixing mechanism and is connected with the mixing mechanism, and a third screw is arranged in the machine barrel; and one end of the cylinder is provided with a third driving motor for driving the third screw.

In the prior art, similar to the plastic extruder, the temperature of raw materials in a cylinder of the prior art is difficult to accurately control, so that plastic particles cannot be well melted and solidified, the production quality of plastic products is affected, and therefore, the improvement space remains.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, an object of the utility model is to provide a plastic extruder, its advantage lies in: the temperature in the machine barrel is convenient to control, and the production quality of the plastic is improved.

In order to achieve the above purpose, the utility model provides a following technical scheme: plastics extruder, including barrel, driving motor and screw rod, the heating cylinder has been cup jointed to the outer wall of barrel, and the inner wall of heating cylinder is provided with the heating plate that a plurality of equidistance distribute, the outer wall of barrel is hugged closely to the heating plate, the one end of barrel is provided with the mould, the outer wall winding of mould has the cooling tube, the bottom of barrel is provided with the base, the top of base is provided with coolant tank, one side of coolant tank is provided with the water pump, the inlet tube has been cup jointed to the output of water pump, the one end and the cooling tube of inlet tube are linked together, the outlet pipe has been cup jointed to the one end that the inlet tube was kept away from to the cooling tube, the one end and the coolant tank of outlet pipe are linked together.

Through adopting above-mentioned technical scheme, in operation, driving motor work drives the screw rod and rotates, the screw rod promotes the raw materials in the barrel when rotating and flows, the heating plate can heat the raw materials in the barrel from the outside of barrel, guarantee that the raw materials is in the molten state all the time at the in-process that flows, when the raw materials flows to the mould in, the water pump can follow in the cooling water tank extraction coolant liquid and get into to the cooling tube in, the cooling tube can cool off the raw materials in the mould, be convenient for the raw materials is stereotyped fast at the mould, the condensate after the cooling can flow into to the cooling water tank along the outlet pipe again, be convenient for control the temperature of raw materials, the extrusion quality of plastic products has been improved.

The utility model discloses further set up to: the bottom of the heating plate is provided with a heat conducting rod, the bottom end of the heat conducting rod is provided with a heat conducting plate, and the heat conducting plate is tightly attached to the inner wall of the machine barrel.

Through adopting above-mentioned technical scheme, the conducting rod can give the conducting strip with the temperature transfer of heating plate, and the conducting strip can directly heat for the raw materials in the barrel, has reduced the thermal loss in the heating process.

The utility model discloses further set up to: and a heat insulation pipe is arranged at the joint of the machine barrel and the die.

Through adopting above-mentioned technical scheme, the setting of thermal-insulated pipe can reduce the high temperature transmission of barrel to the mould, avoids the raw materials in the mould can not solidify the condition emergence.

The utility model discloses further set up to: and a heat conduction bulge is arranged on the outer wall of one end, close to the heat insulation pipe, of the machine barrel.

Through adopting above-mentioned technical scheme, the bellied setting of heat conduction can be with the barrel near the heat of thermal-insulated pipe one end dispel the heat to the air fast in, reduces the heat and gives the mould through thermal-insulated pipe transmission.

The utility model discloses further set up to: and a connecting rod of the machine barrel and the base is provided with a heat insulation rod.

Through adopting above-mentioned technical scheme, the setting of thermal-insulated pole can carry out the stable stay to the barrel on the one hand, and on the other hand reduces the heat transfer of barrel and gives the base, has guaranteed the heating effect of barrel.

The utility model discloses further set up to: the inner wall of the machine barrel is provided with a material guide ring, the material guide ring is of a hollow structure, and the section of the hollow part of the material guide ring is of an isosceles trapezoid structure with a wide upper part and a narrow lower part.

By adopting the technical scheme, the arrangement of the material guide ring can facilitate the raw materials to enter the machine barrel during feeding; the cross-section of the hollow part is of an isosceles trapezoid structure with a wide upper part and a narrow lower part, so that the heat in the machine barrel can be reduced to be dissipated from the feeding part, and the heating effect of raw materials is improved.

The utility model discloses further set up to: the fixed orifices have been seted up to one side outer wall of coolant tank, and the inner wall of fixed orifices is provided with the semiconductor refrigeration piece, the refrigeration end of semiconductor refrigeration piece is located coolant tank's inside.

By adopting the technical scheme, the temperature of cooling liquid in the cooling water tank can be reduced by the arrangement of the semiconductor refrigerating sheet, and the cooling effect on the die is ensured.

To sum up, the utility model has the advantages of it is following:

1. when the cooling device works, the driving motor works to drive the screw rod to rotate, the screw rod drives the raw material in the machine barrel to flow when rotating, the heating sheet can heat the raw material in the machine barrel from the outside of the machine barrel, the raw material is guaranteed to be always in a molten state in the flowing process, when the raw material flows into the die, the water pump can extract cooling liquid from the cooling water tank to enter the cooling pipe, the cooling pipe can cool the raw material in the die, the raw material is rapidly shaped in the die, the cooled condensate can flow into the cooling water tank along the water outlet pipe again, the temperature of the raw material is convenient to control, and the extrusion quality of plastic products is improved;

2. the temperature of the heating sheet can be transferred to the heat conducting sheet through the heat conducting rod, and the heat conducting sheet can directly heat the raw material in the machine barrel, so that the heat loss in the heating process is reduced;

3. the high temperature transmission of the machine barrel to the die can be reduced through the heat insulation pipe, and the condition that the raw material in the die cannot be solidified is avoided; the heat conduction is protruding can be with the barrel near the heat of insulating tube one end dispel the heat to the air fast in, reduces the heat and gives the mould through insulating tube transmission.

Drawings

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

FIG. 2 is a schematic sectional view of the present embodiment;

fig. 3 is an enlarged schematic view of a structure in fig. 2.

Description of the reference numerals: 1. a barrel; 2. a drive motor; 3. a screw; 4. a heating cylinder; 5. a heating plate; 6. a mold; 7. a cooling tube; 8. a base; 9. a cooling water tank; 10. a water pump; 11. a water inlet pipe; 12. a water outlet pipe; 13. a heat conducting rod; 14. a heat conductive sheet; 15. a heat insulating pipe; 16. a heat conducting protrusion; 17. a heat insulating rod; 18. a material guide ring; 19. semiconductor refrigeration piece.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A plastic extruder is shown in figures 1-3 and comprises a machine barrel 1, wherein a driving motor 2 is arranged on one side of the machine barrel 1, a screw rod 3 is arranged on an output shaft of the driving motor 2, a heating barrel 4 is sleeved on the outer wall of the machine barrel 1, a plurality of heating sheets 5 distributed equidistantly are arranged on the inner wall of the heating barrel 4, the heating sheets 5 are tightly attached to the outer wall of the machine barrel 1, a mold 6 is arranged at one end of the machine barrel 1, a cooling pipe 7 is wound on the outer wall of the mold 6, a base 8 is arranged at the bottom end of the machine barrel 1, a cooling water tank 9 is arranged at the top of the base 8, a water pump 10 is arranged on one side of the cooling water tank 9, an output end of the water pump 10 is sleeved with a water inlet pipe 11, one end of the water inlet pipe 11 is communicated with the cooling pipe 7, a water outlet pipe 12 is sleeved at one end, far away from the water inlet pipe 11, and one end of the water outlet pipe 12 is communicated with the cooling water tank 9.

It should be noted that, in this embodiment, the heat conducting rod 13 is installed at the bottom of the heating plate 5, and the heat conducting plate 14 is installed at the bottom end of the heat conducting rod 13, the heat conducting plate 14 is tightly attached to the inner wall of the cylinder 1, the heat conducting rod 13 can transfer the temperature of the heating plate 5 to the heat conducting plate 14, and the heat conducting plate 14 can directly heat the raw material in the cylinder 1, thereby reducing the heat loss in the heating process.

Further, in the present embodiment, the heat insulation pipe 15 is provided at the joint between the barrel 1 and the mold 6, and the heat insulation pipe 15 can reduce the transmission of the high temperature of the barrel 1 to the mold 6, thereby avoiding the occurrence of the situation that the raw material in the mold 6 cannot be solidified.

The outer wall of one end of the machine barrel 1 close to the heat insulation pipe 15 is provided with a heat conduction bulge 16, heat of one end of the machine barrel 1 close to the heat insulation pipe 15 can be quickly dissipated to the air through the heat conduction bulge 16, and the heat is reduced and is transferred to the die 6 through the heat insulation pipe 15.

The connecting rod of barrel 1 and base 8 is provided with heat insulating rod 17, can carry out the stable support to barrel 1 on the one hand through heat insulating rod 17, and on the other hand reduces the heat transfer of barrel 1 and gives base 8, has guaranteed the heating effect of barrel 1.

The inner wall of the machine barrel 1 is provided with a material guide ring 18, the material guide ring 18 is of a hollow structure, the section of the hollow part of the material guide ring 18 is of an isosceles trapezoid structure with a wide upper part and a narrow lower part, and raw materials can conveniently enter the machine barrel 1 when being fed through the material guide ring 18; the isosceles trapezoid structure with the cross section at the hollow part being wide at the top and narrow at the bottom can reduce the heat dissipation from the feeding part in the machine barrel 1, and improve the heating effect of the raw materials.

The fixed orifices have been seted up to one side outer wall of coolant tank 9, and the inner wall of fixed orifices is provided with semiconductor refrigeration piece 19, and the refrigeration end of semiconductor refrigeration piece 19 is located coolant tank 9's inside, can reduce the temperature of cooling liquid in coolant tank 9 through semiconductor refrigeration piece 19, has guaranteed the cooling effect to mould 6.

The utility model discloses a working process and beneficial effect as follows: the during operation, the work of driving motor 2 drives screw rod 3 and rotates, screw rod 3 promotes the raw materials in barrel 1 when rotating and flows, raw materials in barrel 1 can be heated from barrel 1's outside to heating plate 5, guarantee that the raw materials is in the molten state all the time at the in-process that flows, when the raw materials flows to mould 6 in, pump 10 can follow in cooling water tank 9 extraction coolant liquid and get into to cooling tube 7 in, cooling tube 7 can cool off the raw materials in mould 6, be convenient for the raw materials is at mould 6 and finalizing the design fast, the condensate after the cooling can flow into cooling water tank 9 again along outlet pipe 12, be convenient for control the temperature of raw materials, the quality of extruding of plastic products has been improved.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. Plastics extruder, including barrel (1), driving motor (2) and screw rod (3), its characterized in that: the outer wall of the machine barrel (1) is sleeved with a heating cylinder (4), the inner wall of the heating cylinder (4) is provided with a plurality of heating sheets (5) which are distributed at equal intervals, the heating sheet (5) is tightly attached to the outer wall of the machine barrel (1), one end of the machine barrel (1) is provided with a die (6), a cooling pipe (7) is wound on the outer wall of the die (6), a base (8) is arranged at the bottom end of the machine barrel (1), a cooling water tank (9) is arranged at the top of the base (8), a water pump (10) is arranged at one side of the cooling water tank (9), the output end of the water pump (10) is sleeved with a water inlet pipe (11), one end of the water inlet pipe (11) is communicated with the cooling pipe (7), and one end of the cooling pipe (7) far away from the water inlet pipe (11) is sleeved with a water outlet pipe (12), and one end of the water outlet pipe (12) is communicated with the cooling water tank (9).

2. A plastic extruder as claimed in claim 1, wherein: the bottom of the heating plate (5) is provided with a heat conducting rod (13), the bottom end of the heat conducting rod (13) is provided with a heat conducting plate (14), and the heat conducting plate (14) is tightly attached to the inner wall of the machine barrel (1).

3. A plastic extruder as claimed in claim 1, wherein: and a heat insulation pipe (15) is arranged at the joint of the machine barrel (1) and the die (6).

4. A plastic extruder according to claim 3, wherein: and a heat conduction bulge (16) is arranged on the outer wall of one end of the machine barrel (1) close to the heat insulation pipe (15).

5. A plastic extruder as claimed in claim 1, wherein: and a heat insulation rod (17) is arranged on a connecting rod of the machine barrel (1) and the base (8).

6. A plastic extruder as claimed in claim 1, wherein: the inner wall of the machine barrel (1) is provided with a material guide ring (18), the material guide ring (18) is of a hollow structure, and the section of the hollow part of the material guide ring (18) is of an isosceles trapezoid structure with a wide upper part and a narrow lower part.

7. A plastic extruder as claimed in claim 1, wherein: the outer wall of one side of cooling water tank (9) has seted up the fixed orifices, and the inner wall of fixed orifices is provided with semiconductor refrigeration piece (19), the refrigeration end of semiconductor refrigeration piece (19) is located the inside of cooling water tank (9).