CN210525797U - a plastic extruder - Google Patents
a plastic extruder Download PDFInfo
- Publication number
- CN210525797U CN210525797U CN201921219932.XU CN201921219932U CN210525797U CN 210525797 U CN210525797 U CN 210525797U CN 201921219932 U CN201921219932 U CN 201921219932U CN 210525797 U CN210525797 U CN 210525797U
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- screw rod
- barrel
- plastic
- screw
- outer screw
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
本实用新型公开了一种塑料挤出机，属于塑料挤出设备技术领域，包括设置于机台上的机筒、挤出模具、双层螺杆、驱动装置和进料斗，在本方案中，在机筒内设置双层螺杆，外层螺杆上设置有通孔，外层螺杆内侧设置有螺旋状突起，使位于外层的塑料能够进入内层，再协同内层的螺杆将塑料挤出机筒，本实用新型采用的双层螺杆有利于提高挤出塑料的品质，挤出的塑料更均匀，提高塑料挤出效率。
The utility model discloses a plastic extruder, belonging to the technical field of plastic extrusion equipment, comprising a barrel, an extrusion die, a double-layer screw, a driving device and a feeding hopper arranged on a machine table. A double-layer screw is arranged in the barrel, a through hole is arranged on the outer screw, and a helical protrusion is arranged on the inner side of the outer screw, so that the plastic in the outer layer can enter the inner layer, and then cooperate with the inner screw to extrude the plastic extruder. The double-layer screw used by the utility model is beneficial to improve the quality of the extruded plastic, the extruded plastic is more uniform, and the plastic extrusion efficiency is improved.
Description
Technical Field
The utility model relates to a belong to plastics extrusion equipment technical field, especially relate to a plastics extruder.
Background
The plastic extruder (main machine) can be matched with various plastic forming auxiliary machines for pipe material, film, bar material, monofilament, flat filament, packing belt, extruding net, plate (sheet) material, profiled bar, granulating and cable covering, etc. to form various plastic extrusion forming production lines to produce various plastic products.
The extrusion principle of the plastic extruder is as follows: in the process of extruding and processing plastics, the plastic raw materials in the machine barrel are pushed to move towards the discharge port of the machine barrel by means of the rotating motion of the screw of the extruder, when the plastics are plasticized and output, a transition device is connected to the discharge port of the machine barrel, the plasticized plastics are distributed to a mold by the transition device, and finally the molding of the plastic products is completed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses a double-deck screw rod is favorable to improving the quality of extruding plastics, and the plastics of extruding are more even, improve plastics extrusion efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a plastic extruder, includes the board, its characterized in that, the board on be provided with barrel, extrusion tooling, double-deck screw rod, drive arrangement and feeder hopper, extrusion tooling set up in the discharge gate of barrel, the feeder hopper set up in the feed inlet of barrel, double-deck screw rod set up inside the barrel, double-deck screw rod includes outer screw rod and interior screw rod, outer screw rod and interior screw rod are coaxial setting, double-deck screw rod installation end is connected with drive arrangement, the junction is provided with the reduction gear, the board on be provided with the basin and be located the barrel below, the outside whole body of barrel be provided with heating and cooling device and connect the basin.
Furthermore, the outer screw rod is of a segmented structure, the part close to the feed hopper is a front section, and the part close to the discharge port is a rear section.
Furthermore, the outer screw rod front section is externally provided with a conveying screw thread, plastics enter the machine barrel and contact the outer screw rod front section firstly, and the conveying screw thread conveys the plastics to the rear section.
Furthermore, a partition plate is arranged at the joint of the front section and the rear section of the outer screw rod, sieve holes are formed in the partition plate, and the plastic positioned at the front section of the outer screw rod passes through the sieve holes to enter the rear section of the outer screw rod, so that incomplete melting of the plastic is prevented.
Furthermore, the inner wall of the machine barrel and the outer wall of the rear section of the outer screw rod are provided with frosted layers.
Furthermore, the inner wall of the rear section of the outer screw rod is provided with a spiral protrusion, and the spiral direction is opposite to the spiral direction of the inner screw rod.
Furthermore, through holes are formed among the spiral protrusions at the rear section of the outer screw rod, so that plastics can penetrate through the through holes and enter the inner screw rod to be extruded out.
Furthermore, the double-layer screw mounting end is provided with a planetary transmission structure, an outer screw is connected with an outer gear of the planetary transmission structure, and an inner screw is connected with a central gear of the planetary transmission structure.
Furthermore, the heating and cooling device comprises a sleeve arranged on the periphery of the machine barrel, an annular heating pipe is arranged in the sleeve, a water inlet pipe and a water outlet pipe which are connected to the water tank are respectively arranged at two ends below the sleeve, and an air inlet and an air outlet are arranged at two ends above the sleeve.
Furthermore, the air outlet is provided with a fan, after water in the sleeve is emptied, outside cold air enters the sleeve by the fan, and air cooling is adopted.
The utility model has the advantages that
The utility model provides a pair of plastic extruder, the double-deck screw rod of adoption are favorable to improving the quality of extruding plastics, and the plastics of extruding are more even, improve production efficiency, and the outer sleeve pipe of barrel sets up water heating mode and forced air cooling mode, ensures that heating and cooling are even mild, prevents that unbalanced temperature variation from influencing inside plastics.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the sectional structure of the rear section of the outer screw rod of the present invention;
description of reference numerals: the device comprises a machine table 1, a support 11, a driving motor 12, a speed reducer 13, a planetary transmission structure 14, a machine barrel 2, an exhaust port 21, an extrusion die 22, an outer screw rod 3, an outer screw rod front section 31, an outer screw rod rear section 32, a through hole 321, a spiral protrusion 322, a partition plate 33, an inner screw rod 4, a sleeve 5, an air inlet 51, an air outlet 52, a fan 521, a water tank 6, a water inlet pipe 61, a water outlet pipe 62 and a feed hopper 7.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout, and which are illustrated in the following description with reference to the accompanying drawings, and which are meant to be illustrative only and not to be construed as limiting the invention, and the description is therefore intended to be illustrative only, and the practice of the inventive concepts herein is not limited solely to the exemplary embodiments described herein and the illustrations in the drawings, which are not limiting.
As shown in fig. 1-2:
example 1
A plastic extruder comprises a machine table 1, wherein the machine table 1 is provided with a machine barrel 2, an extrusion die 22, a double-layer screw, a driving device and a feed hopper, the machine table 1 is provided with a bracket for fixing the machine barrel 2 on the machine table 1, the machine barrel 2 is provided with an exhaust port 21 communicated with the inside, the extrusion die 22 is arranged at the discharge port of the machine barrel 2, the extrusion die 22 can be replaced by different extrusion dies 22 according to different processing requirements, the feed hopper 7 is arranged at the feed inlet of the machine barrel 2, the double-layer screw is arranged inside the machine barrel 2 and comprises an outer screw 3 and an inner screw 4, the outer screw 3 and the inner screw 4 are coaxially arranged, the mounting end of the double-layer screw is connected with the driving device, the joint is provided with a speed reducer 13, the machine table 1 is provided with a water tank 6 positioned below the machine barrel 2, and a heating and cooling device connected with the water tank 6 is arranged on the periphery of the outer part of the machine barrel 2.
The outer screw rod 3 is of a segmented structure, the part close to the feed hopper 7 is a front segment, and the part close to the discharge port is a rear segment.
The outer screw rod front section 31 is externally provided with a conveying screw thread, plastics enter the machine barrel 2 and contact the outer screw rod front section 31 first, and the plastics are conveyed to the rear section by the conveying screw thread.
The connection part of the front section 31 and the rear section of the outer screw rod is provided with a partition 33, the partition 33 is provided with a sieve hole, and the plastic positioned at the front section 31 of the outer screw rod passes through the sieve hole to enter the rear section of the outer screw rod 3 to prevent the plastic from being completely melted.
And the inner wall of the machine barrel 2 and the outer wall of the rear section of the outer screw rod 3 are provided with frosting layers.
The inner wall of the outer screw rear section 32 is provided with a spiral protrusion 322 extending along the axial direction, and the spiral direction is opposite to the spiral direction of the inner screw 4.
Through holes 321 are formed between the spiral protrusions 322 of the outer screw rod 3, and the through holes 321 are circular holes, so that plastic can enter the inner screw rod 4 through the through holes 321 and is extruded out.
The double-layer screw mounting end is provided with a planetary transmission structure 14, the outer screw 3 is connected with an outer gear of the planetary transmission structure 14, and the inner screw 4 is connected with a central gear of the planetary transmission structure 14.
The heating and cooling device comprises a sleeve 5 arranged on the periphery of the machine barrel 2, an annular heating pipe sleeve is arranged in the sleeve 5 and is arranged outside the machine barrel 2, a water inlet pipe 61 and a water outlet pipe 62 are arranged at two ends below the sleeve 5 and are connected to the water tank 6 respectively, a water pump is arranged on each of the water inlet pipe 61 and the water outlet pipe 62, and an air inlet 51 and an air outlet 52 are arranged at two ends above the sleeve 5.
The air outlet 52 is provided with a fan 521, after the water in the casing 5 is emptied, the fan 521 is used to make the outside cold air enter the casing 5, and the air cooling is adopted for cooling.
The working principle is as follows:
firstly, plastic is put into the feed hopper 7, water in the water tank 6 is pumped into the sleeve 5 through the water pump of the water inlet pipe 61, then the annular heating pipe heats the water in the sleeve 5, and meanwhile, the equipment is started, and the plastic enters the machine barrel 2.
After the plastic enters the cylinder 2, the plastic first contacts the front section 31 of the outer screw, the plastic is conveyed from the front section 31 of the outer screw to the rear section, the temperature is gradually increased, and the air in the cylinder 2 is gradually exhausted from the exhaust port, so that the air is prevented from remaining inside.
The plastic melts under the influence of temperature and passes through the partition 33 into the outer screw rear section 32, and the plastic enters into the inner portion through the through hole 321 on the surface of the outer screw rear section 32 and contacts the inner screw 4.
The inner screw 4 rotates reversely, the outer screw 3 rotates normally, the spiral protrusions 322 on the inner wall of the outer screw rear section 32 are opposite to the inner screw 4, the generated thrust is the same, and the plastic can be pushed out to the extrusion die 22 at the same time.
When the cooling is performed, the water pump of the water outlet pipe 62 of the water tank 6 empties the hot water in the sleeve 5, meanwhile, the annular heating pipe stops heating, and the fan 521 at the top of the sleeve 5 acts to guide the cold air into the sleeve 5 for cooling.
Example 2
A plastic extruder comprises a machine table 1, wherein the machine table 1 is provided with a machine barrel 2, an extrusion die 22, a double-layer screw, a driving device and a feed hopper 7, the machine table 1 is provided with a bracket for fixing the machine barrel 2 on the machine table 1, the machine barrel 2 is provided with an exhaust port 21 communicated with the inside, the extrusion die 22 is arranged at the discharge port of the machine barrel 2, the extrusion die 22 can be replaced by different extrusion dies 22 according to different processing requirements, the feed hopper 7 is arranged at the feed inlet of the machine barrel 2, the double-layer screw is arranged inside the machine barrel 2 and comprises an outer screw 3 and an inner screw 4, the outer screw 3 and the inner screw 4 are coaxially arranged, the mounting end of the double-layer screw is connected with the driving device, the joint is provided with a speed reducer 13, the machine table 1 is provided with a water tank 6 positioned below the machine barrel 2, and a heating and cooling device connected with the water tank 6 is arranged on the periphery of the outer part of the machine barrel 2.
The outer screw rod 3 is of a segmented structure, the part close to the feed hopper 7 is a front segment, and the part close to the discharge port is a rear segment.
The outer screw rod front section 31 is externally provided with a conveying screw thread, plastics enter the machine barrel 2 and contact the outer screw rod front section 31 first, and the plastics are conveyed to the rear section by the conveying screw thread.
A partition 33 is arranged at the joint of the front section 31 and the rear section of the outer screw, a sieve hole is arranged on the partition 33, and the plastic positioned on the front section 31 of the outer screw passes through the sieve hole to enter the rear section 32 of the outer screw, so that the plastic is prevented from being completely melted.
The inner wall of the machine barrel 2 and the outer wall of the outer screw rear section 32 are provided with frosted layers.
In this embodiment, the outer wall of the outer shank rear section 32 is provided with equidistant annular projections.
The inner wall of the outer screw rear section 32 is provided with a spiral protrusion 322 extending axially along the outer screw 3 in a direction opposite to the direction of the spiral of the inner screw 4.
Through holes 321 are arranged between the spiral protrusions 322 of the outer screw rod 3, so that plastic can enter the inner screw rod 4 through the through holes 321 and be extruded out.
The double-layer screw mounting end is provided with a planetary transmission structure 14, the outer screw 3 is connected with an outer gear of the planetary transmission structure 14, and the inner screw 4 is connected with a central gear of the planetary transmission structure 14.
The heating and cooling device comprises a sleeve 5 arranged on the periphery of the machine barrel 2, an annular heating pipe sleeve is arranged in the sleeve 5 and is arranged outside the machine barrel 2, a water inlet pipe 61 and a water outlet pipe 62 are arranged at two ends below the sleeve 5 and are connected to the water tank 6 respectively, a water pump is arranged on each of the water inlet pipe 61 and the water outlet pipe 62, and an air inlet 51 and an air outlet 52 are arranged at two ends above the sleeve 5.
The air outlet 52 is provided with a fan 521, after the water in the casing 5 is emptied, the fan 521 is used to make the outside cold air enter the casing 5, and the air cooling is adopted for cooling.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art. It should be noted that the technical features not described in detail in the present invention can be implemented by any prior art.
Claims (10)
1. The utility model provides a plastic extruder, includes the board, its characterized in that, the board on be provided with barrel, extrusion tooling, double-deck screw rod, drive arrangement and feeder hopper, extrusion tooling set up in the discharge gate of barrel, the feeder hopper set up in the feed inlet of barrel, double-deck screw rod set up inside the barrel, double-deck screw rod includes outer screw rod and interior screw rod, outer screw rod and interior screw rod are coaxial setting, double-deck screw rod installation end is connected with drive arrangement, the junction is provided with the reduction gear, the board on be provided with the basin and be located the barrel below, the outside whole body of barrel be provided with heating and cooling device and connect the basin.
2. A plastic extruder as claimed in claim 1, wherein the outer screw is of a segmented construction, the portion adjacent to the feed hopper being a front segment and the portion adjacent to the discharge outlet being a rear segment.
3. A plastics extruder according to claim 2 wherein the outer screw has a feed screw thread on the exterior of the forward section.
4. The plastic extruder as claimed in claim 2, wherein a partition is provided at the junction of the front section and the rear section of the outer screw, and the partition is provided with a sieve hole.
5. A plastics extruder according to claim 1 or claim 2, wherein the inner barrel wall and the outer wall of the rear section of the outer screw are provided with a frosted layer.
6. The plastic extruder as claimed in claim 2, wherein the inner wall of the rear section of the outer screw is provided with a spiral protrusion, and the spiral direction is opposite to the spiral direction of the inner screw.
7. A plastic extruding machine according to claim 2, wherein the spiral protrusions of the rear section of the outer screw rod are provided with through holes therebetween.
8. A plastics extruder according to claim 1, wherein said double screw mounting end is provided with a planetary drive arrangement.
9. The plastic extruder as claimed in claim 1, wherein the heating and cooling device comprises a sleeve disposed at the periphery of the barrel, an annular heating pipe is disposed in the sleeve, a water inlet pipe and a water outlet pipe are disposed at two ends of the sleeve below and connected to the water tank, and a gas inlet and a gas outlet are disposed at two ends of the sleeve above.
10. A plastics extruder according to claim 9 wherein said air outlet is provided with a fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921219932.XU CN210525797U (en) | 2019-07-31 | 2019-07-31 | a plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921219932.XU CN210525797U (en) | 2019-07-31 | 2019-07-31 | a plastic extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210525797U true CN210525797U (en) | 2020-05-15 |
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ID=70600249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921219932.XU Expired - Fee Related CN210525797U (en) | 2019-07-31 | 2019-07-31 | a plastic extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210525797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116604792A (en) * | 2023-07-20 | 2023-08-18 | 广东恒真晟新材料科技有限公司 | Recycled plastic injection molding machine |
-
2019
- 2019-07-31 CN CN201921219932.XU patent/CN210525797U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116604792A (en) * | 2023-07-20 | 2023-08-18 | 广东恒真晟新材料科技有限公司 | Recycled plastic injection molding machine |
| CN116604792B (en) * | 2023-07-20 | 2023-09-29 | 广东恒真晟新材料科技有限公司 | Recycled plastic injection molding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200515 |