CN112297386A - Screw rod for extrusion molding of automobile foaming material - Google Patents
Screw rod for extrusion molding of automobile foaming material Download PDFInfo
- Publication number
- CN112297386A CN112297386A CN202011071449.9A CN202011071449A CN112297386A CN 112297386 A CN112297386 A CN 112297386A CN 202011071449 A CN202011071449 A CN 202011071449A CN 112297386 A CN112297386 A CN 112297386A
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- China
- Prior art keywords
- connector
- side wall
- outer side
- screw
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/256—Exchangeable extruder parts
- B29C48/2566—Die parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/832—Heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/08—Copolymers of ethylene
- B29K2023/083—EVA, i.e. ethylene vinyl acetate copolymer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a screw for extrusion molding of an automobile foaming material, which belongs to the field of automobile foaming extrusion screws and comprises a machine barrel, wherein a heater is arranged on the outer side wall of the machine barrel, a thermocouple is arranged on the inner side wall of the heater, a connector is arranged on the left side of the inner side wall of the machine barrel, a screw is arranged on the right side of the outer side wall of the connector, a mold connector B is arranged on the right side of the outer side wall of the machine barrel, and a circular groove is formed in the right side of the outer side wall. According to the invention, the die connector A, the threaded hole A, the die connector B, the threaded hole B, the bolt A and the bolt B are mutually matched, so that the die is conveniently disassembled, the follow-up replacement difficulty of the die at the later stage is conveniently reduced, and the foaming temperature can be controlled to increase the quality of a formed product through the mutual matching of the heater, the thermocouple, the machine barrel, the screw rod and the hopper, and the foaming device is suitable for being widely popularized and used.
Description
Technical Field
The invention relates to the technical field of automobile foaming extrusion screws, in particular to a screw for extrusion molding of an automobile foaming material.
Background
EVA (EVA means ethylene-vinyl acetate copolymer) foaming materials in the current market generally comprise a crosslinking agent and a foaming agent, crosslinking is generated through pyrolysis of the crosslinking agent to improve strength, and gas foaming is generated through pyrolysis of the foaming agent. With the increasing requirements on energy conservation and consumption reduction, the EVA foamed at low temperature becomes the subject of research. As the rise temperature of the material decreases, the processing requirements of the foamed material become higher and higher. Currently, the current practice is. Extrusion is a common way of processing EVA foams. The quality of the low-temperature foaming material extrusion molding product is directly influenced by the structural design performance of the screw. In the prior art, because the EVA material foamed at low temperature is sensitive to temperature and pressure, when the screw is plasticized and sheared too strongly, the strength of the material is easily reduced, foaming performance is attenuated, and when the screw is poorly plasticized, the appearance of a product is easily damaged, and the appearance is unqualified. Therefore, the design of the screw for extruding the low-temperature foaming EVA material is particularly important.
The patent number CN201920348487 discloses a screw for low-temperature foam material extrusion molding, which is applied to the technical field of low-temperature foam material extrusion molding equipment, and the screw for low-temperature foam material extrusion molding comprises a feeding section (1), a compression section (2), a homogenizing section (3) and a plasticizing section (4), wherein the length-diameter ratio of the screw for low-temperature foam material extrusion molding is 28/32; the compression ratio of the screw for extruding and molding the low-temperature foaming material is 2.1/2.4, the screw for extruding and molding the low-temperature foaming material is simple in structure and low in cost, the screw is ensured to be smoother and reduce shearing in the extruding process of the low-temperature foaming material in the extrusion and molding process of the low-temperature foaming material, the bad product phenomenon caused in the extruding process of the low-temperature foaming EVA material is improved, and the overall quality of the extrusion and molding of the low-temperature foaming material is improved.
At present, the technology has certain defects: 1. the difficulty in replacing the die at the later stage is increased due to the inconvenience in disassembling the die; 2. the inability to effectively control the foaming temperature results in a reduction in the quality of the material after molding.
Disclosure of Invention
The invention provides a screw for extrusion molding of an automobile foaming material, which is convenient to disassemble and reduce the difficulty of follow-up replacement of a mold in the later period by the mutual matching of a mold connector A, a threaded hole A, a mold connector B, a threaded hole B, a bolt A and a bolt B, and can control the foaming temperature and increase the quality of a molded product by the mutual matching of a heater, a thermocouple, a machine barrel, a screw and a hopper, so that the problems in the background art can be effectively solved.
The specific technical scheme provided by the invention is as follows:
the invention provides a screw rod for extrusion molding of an automobile foaming material, which comprises a machine barrel, wherein a heater is installed on the outer side wall of the machine barrel, a thermocouple is installed on the inner side wall of the heater, a connector is installed on the left side of the inner side wall of the machine barrel, a screw rod is installed on the right side of the outer side wall of the connector, a mold connector B is installed on the right side of the outer side wall of the machine barrel, a circular groove is formed in the right side of the outer side wall of the mold connector B, the right side of the inner side wall of the mold connector B is connected with the left side of the outer side wall of the mold connector A through a bolt A, a mold is connected with a gap.
Optionally, the outer side wall of the mold connector A and the outer side wall of the mold connector B are both provided with a threaded hole A, and a bolt A penetrates through the threaded hole A.
Optionally, the right side of the outer side wall of the mold connector A and the right side of the outer side wall of the mold connector B are both provided with threaded holes B.
Optionally, the inner side wall of the threaded hole B is fixedly connected with a bolt B.
Optionally, an extrusion head is installed on the right side of the outer side wall of the mold connecting body B.
The invention has the following beneficial effects:
1. the invention is practical, convenient to operate and good in use effect, the die connecting body A is arranged on the right side of the outer side wall of the machine barrel, the right side of the outer side wall of the die connecting body A is provided with a circular groove, the diameter of the circular groove is the same as that of the left side wall of the die connecting body B, so that the left side of the die connecting body B can be inserted into the inner side wall of the circular groove, the outer side wall of the die connecting body A and the left side outer side wall of the die connecting block B are both provided with a group of symmetrical threaded holes A, the inner side wall of the die connecting block B is provided with a die, so that the die is tightly connected with the inner side wall of the threaded holes A through bolts A, the die connecting body A is connected with the die connecting body B, the right side of the outer side wall of the die connecting, when the mould needs to be replaced, the bolt A and the bolt B are screwed, and the mould connecting block B is taken away from the mould connecting block A, so that the mould is convenient to replace.
2. In the invention, the left side of the inner side wall of the machine barrel is provided with a connector, the connector is connected with an external motor, the right side of the connector is provided with a screw rod, the left side of the outer side wall of the machine barrel is provided with a hopper, thereby adding raw materials into the machine barrel through the hopper, installing a heater on the outer side wall of the machine barrel, heating the outer side wall of the machine barrel by the heater, installing a thermocouple on the outer side wall of the heater, detecting the heating temperature of the heater by the thermocouple, electrically connecting the input end of the heater with the output end of an external power supply, electrically connecting the output end of the thermocouple with the input end of a temperature display on the outer side wall of the heater, so that when the heater heats the cylinder, the thermocouple detects the temperature of the outer side wall of the cylinder and transmits an electric signal to the temperature display, therefore, the temperature display can display the heating temperature in real time, so that the stability of the foaming temperature can be ensured, and the molding quality is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of an overall structure of a screw for extrusion molding of an automotive foam material according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a mold connecting body A of a screw for extrusion molding of an automotive foam material according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a mold connecting body B of a screw for extrusion molding of an automotive foam material according to an embodiment of the present invention.
In the figure: 1. a barrel; 2. a thermocouple; 3. a heater; 4. a screw; 5. a cooling jacket; 6. a connector; 7. a hopper; 8. a mold connector A; 9. a bolt A; 10. a mold connector B; 11. a circular groove; 12. a bolt B; 13. a threaded hole A; 14. a threaded hole B; 15. a mold; 16. an extrusion head.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following will describe in detail a screw for extrusion molding of automotive foam material according to an embodiment of the present invention with reference to fig. 1 to 3.
As shown in fig. 1-3, a screw rod for extrusion molding of automobile foaming material, including barrel 1, heater 3 is installed to barrel 1's lateral wall, thermocouple 2 is installed to heater 3's inside wall, connector 6 is installed on barrel 1's inside wall left side, screw rod 4 is installed on connector 6's lateral wall right side, mould connector B10 is installed on barrel 1's lateral wall right side, circular slot 11 has been seted up on mould connector B10's lateral wall right side, bolt A9 is passed through on mould connector B10's inside wall right side and mould connector A8's lateral wall left side and is connected, mould connector A8's inside wall gap connection has mould 15, hopper 7 is installed at barrel 1's left side top, cooling jacket 5 is installed in barrel 1's left side. Wherein, mutually support through mould connector A, screw hole A, mould connector B, screw hole B, bolt A and bolt B to the convenience is dismantled the convenience and is reduced the mould later stage and with trading the degree of difficulty to the mould, mutually supports of rethread heater, thermocouple, barrel, screw rod and hopper.
In this embodiment, as shown in fig. 2-3, the outer sidewall of the mold connector A8 and the outer sidewall of the mold connector B10 are both provided with a threaded hole a13, and a bolt a9 penetrates through the threaded hole a 13. Wherein, make things convenient for bolt A to carry out fastening connection.
In this embodiment, as shown in fig. 2-3, the right side of the outer sidewall of the mold connector A8 and the right side of the outer sidewall of the mold connector B10 are both provided with a threaded hole B14. Wherein, make things convenient for bolt B to carry out fastening connection.
In this embodiment, as shown in fig. 2, a bolt B12 is fastened to an inner side wall of the threaded hole B14. Wherein, simple structure conveniently dismantles.
In this embodiment, as shown in fig. 1, an extrusion head 16 is installed on the right side of the outer sidewall of the die connector B10. Wherein, the molded product is conveniently extruded.
The invention is a screw for extrusion molding of automotive foaming material, when in operation, the right side of the outer side wall of a machine barrel 1 is provided with a mold connector A8, the right side of the outer side wall of the mold connector A8 is provided with a circular groove 11, the diameter of the circular groove 11 is the same as the diameter of the left side of the outer side wall of a mold connector B10, so that the left side of the mold connector B10 can be inserted into the inner side wall of the circular groove 11, the outer side wall of the mold connector A8 and the left outer side wall of a mold connecting block B10 are both provided with a set of symmetrical threaded holes A13, the inner side wall of the mold connecting block B10 is provided with a mold 15, so that the mold connector A8 and the mold connector B10 are connected by fastening a bolt A9, the right side of the outer side wall of the mold connector A8 and the right side of the outer side wall of the mold connector B10 are both provided with, the die connecting block A8 and the die connecting block B12 can be effectively connected, when a die 15 needs to be replaced, the die connecting block B10 is taken away from the die connecting block A8 by screwing the bolt A9 and the bolt B12, so that the die 15 is convenient to replace, the connector 6 is installed on the left side of the inner side wall of the machine barrel 1 and is connected with an external motor, the screw rod 4 is installed on the right side of the connector 6, the hopper 7 is installed on the left side of the outer side wall of the machine barrel 1, so that raw materials are added into the machine barrel 1 through the hopper 7, the heater 3 is installed on the outer side wall of the machine barrel 1, the heater 3 is used for heating the outer side wall of the machine barrel 1, the thermocouple 2 is installed on the outer side wall of the heater 3, the thermocouple 2 is used for detecting the heating temperature of the heater 3, the input end of the heater 3 is electrically connected with the output, thus when heater 3 heats barrel 1, thermocouple 2 detects 1 outside wall temperature of barrel and gives temperature display with the signal of telecommunication, thereby temperature display can show heating temperature in real time, thereby can ensure the stability of foaming temperature, improves the shaping quality.
The invention relates to a screw 1 and a machine barrel for extrusion molding of an automobile foaming material; 2. a thermocouple; 3. a heater; 4. a screw; 5. a cooling jacket; 6. a connector; 7. a hopper; 8. a mold connector A; 9. a bolt A; 10. a mold connector B; 11. a circular groove; 12. a bolt B; 13. a threaded hole A; 14. a threaded hole B; 15. a mold; 16. the extrusion head components are all standard components or components known to the person skilled in the art, the structure and the principle of which are known to the person skilled in the art from technical manuals or by routine experimentation.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (5)
1. The utility model provides a screw rod for extrusion molding of automobile foaming material, includes barrel (1), its characterized in that, heater (3) are installed to the lateral wall of barrel (1), thermocouple (2) are installed to the inside wall of heater (3), connector (6) are installed in the inside wall left side of barrel (1), screw rod (4) are installed on the lateral wall right side of connector (6), mould connector B (10) are installed on the lateral wall right side of barrel (1), circular slot (11) have been seted up on the lateral wall right side of mould connector B (10), the inside wall right side of mould connector B (10) is connected through bolt A (9) with the lateral wall left side of mould connector A (8), the inside wall gap connection of mould connector A (8) has mould (15), hopper (7) are installed at the left side top of barrel (1), the left side of the machine barrel (1) is provided with a cooling jacket (5).
2. The screw rod for extrusion molding of automotive foaming material according to claim 1, wherein the outer side wall of the mold connecting body A (8) and the outer side wall of the mold connecting body B (10) are both provided with a threaded hole A (13), and the bolt A (9) penetrates through the threaded hole A (13).
3. The screw rod for extrusion molding of automotive foaming material according to claim 1, wherein the right side of the outer side wall of the mold connector A (8) and the right side of the outer side wall of the mold connector B (10) are both provided with a threaded hole B (14).
4. The screw for extrusion molding of automotive foam according to claim 1, wherein a bolt B (12) is fastened to an inner side wall of the screw hole B (14).
5. The screw for extrusion molding of automotive foam according to claim 1, wherein an extrusion head (16) is attached to the right side of the outer sidewall of the mold connection body B (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011071449.9A CN112297386A (en) | 2020-10-09 | 2020-10-09 | Screw rod for extrusion molding of automobile foaming material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011071449.9A CN112297386A (en) | 2020-10-09 | 2020-10-09 | Screw rod for extrusion molding of automobile foaming material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112297386A true CN112297386A (en) | 2021-02-02 |
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ID=74489483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011071449.9A Pending CN112297386A (en) | 2020-10-09 | 2020-10-09 | Screw rod for extrusion molding of automobile foaming material |
Country Status (1)
| Country | Link |
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| CN (1) | CN112297386A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203093001U (en) * | 2013-03-15 | 2013-07-31 | 张春燕 | Plastic extruder |
| CN204936148U (en) * | 2015-07-28 | 2016-01-06 | 楼少琼 | A kind of dacron thread processing screw extruder |
| WO2016181376A1 (en) * | 2015-05-12 | 2016-11-17 | Pt. Topla Abadi Jaya | Extruder equipment arrangement for producing three layers sheet of colored resin with the material composition of each layer is enhanced |
| CN107379388A (en) * | 2017-08-30 | 2017-11-24 | 武汉理工大学 | Using the microporous foam and in-mold decoration composite forming device and method of composite foamable agent |
| CN209756013U (en) * | 2019-04-15 | 2019-12-10 | 常州浩蔚环保科技有限公司 | Extrusion die of large-scale extruder |
| CN211389682U (en) * | 2019-11-19 | 2020-09-01 | 四川中旺科技有限公司 | Double-screw extruder capable of avoiding blockage |
| CN211416199U (en) * | 2019-12-29 | 2020-09-04 | 青岛隆诚塑料机械有限公司 | Cone double-extruder converging core connector |
-
2020
- 2020-10-09 CN CN202011071449.9A patent/CN112297386A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203093001U (en) * | 2013-03-15 | 2013-07-31 | 张春燕 | Plastic extruder |
| WO2016181376A1 (en) * | 2015-05-12 | 2016-11-17 | Pt. Topla Abadi Jaya | Extruder equipment arrangement for producing three layers sheet of colored resin with the material composition of each layer is enhanced |
| CN204936148U (en) * | 2015-07-28 | 2016-01-06 | 楼少琼 | A kind of dacron thread processing screw extruder |
| CN107379388A (en) * | 2017-08-30 | 2017-11-24 | 武汉理工大学 | Using the microporous foam and in-mold decoration composite forming device and method of composite foamable agent |
| CN209756013U (en) * | 2019-04-15 | 2019-12-10 | 常州浩蔚环保科技有限公司 | Extrusion die of large-scale extruder |
| CN211389682U (en) * | 2019-11-19 | 2020-09-01 | 四川中旺科技有限公司 | Double-screw extruder capable of avoiding blockage |
| CN211416199U (en) * | 2019-12-29 | 2020-09-04 | 青岛隆诚塑料机械有限公司 | Cone double-extruder converging core connector |
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Application publication date: 20210202 |
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