CN116277683A - Extrusion forming die with temperature control function and temperature control method thereof - Google Patents
Extrusion forming die with temperature control function and temperature control method thereof Download PDFInfo
- Publication number
- CN116277683A CN116277683A CN202310392021.1A CN202310392021A CN116277683A CN 116277683 A CN116277683 A CN 116277683A CN 202310392021 A CN202310392021 A CN 202310392021A CN 116277683 A CN116277683 A CN 116277683A
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- CN
- China
- Prior art keywords
- heat exchange
- temperature control
- exchange liquid
- inner cylinder
- outer cylinder
- 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
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5816—Measuring, controlling or regulating temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides an extrusion forming die with a temperature control function and a temperature control method thereof, and relates to a die, wherein the technical scheme provided by the invention is as follows for optimizing the temperature control of the die: the mold comprises a molding section connected with a material pushing screw section, the molding section comprises an inner cylinder, an outer cylinder and a temperature control system, sealing steps are arranged at two ends of the inner cylinder, each sealing step comprises a first step extending in the axial direction and a second step extending in the radial direction, more than two sets of heat exchange liquid inlets and heat exchange liquid outlets are arranged on the outer cylinder, and the temperature control system comprises more than two sets of spiral heat exchange liquid tanks matched with the heat exchange liquid inlets and the heat exchange liquid outlets of the outer cylinder. The invention has the beneficial effects that the temperature of the product extruded in the die is finely controlled by more than two sets of temperature control systems in a heat exchange mode, so that the product keeps constant temperature, and the performance of the product is improved or improved.
Description
Technical Field
The invention relates to a die, in particular to an extrusion forming die with a temperature control function and a temperature control method thereof.
Background
The mold is used for manufacturing various finished products with different requirements, such as a plate-shaped polymer plate or a rod-shaped polymer plate, and the finished products with different shapes and different styles are manufactured by the mold in the field of manufacturing polymer materials, but in the extrusion molding process of the polymer materials, the temperature control is very important, the fine control temperature is particularly important, because the temperature control is closely related to parameters of finished products such as bending strength, modulus, tensile strength, crystallinity and the like, and if the more accurate control of the temperature of the extrusion molding of the product is one direction of optimizing the mold.
Disclosure of Invention
In order to solve the above-mentioned problems, the present invention provides an extrusion molding die with a temperature control function and a temperature control method thereof, and the specific technical scheme is as follows:
the extrusion forming die with the temperature control function is characterized by comprising a forming section connected with a material pushing screw section, wherein the forming section comprises an inner cylinder connected with the material pushing screw section in a sealing way, an outer cylinder arranged outside the inner cylinder in a sealing way and more than one set of heat preservation grooves arranged between the inner cylinder and the outer cylinder and used for maintaining the constant temperature of products in the inner cylinder, sealing steps are arranged at two ends of the inner cylinder and comprise a first step extending axially and a second step extending radially and used for being connected with the outer cylinder in a sealing way, more than two sets of heat exchange liquid inlets and heat exchange liquid outlets are arranged on the outer cylinder, two ends of the heat preservation grooves are matched with the heat exchange liquid inlets and the heat exchange liquid outlets, and the heat preservation grooves are arranged between the inner cylinder and the outer cylinder in a spiral shape.
Further, the outer cylinder is provided with three sets of heat preservation grooves, and three sets of heat exchange liquid inlets and three sets of heat exchange liquid outlets which are matched with the three sets of heat preservation grooves for use.
Further, the spiral angle of the heat preservation groove is 30-60 degrees.
Further, the die also comprises a supporting device for supporting the die, the supporting device comprises a supporting seat positioned at the head end and a supporting plate positioned at the tail end, and a supporting rod is arranged between the supporting seat and the supporting plate.
Further, the inner cylinder is cylindrical or polygonal.
Further, the heat exchange liquid is water with a proper temperature.
A temperature control method of an extrusion molding die with a temperature control function comprises the following steps: and when the material pushing screw pushes materials to the forming section, heat exchange liquid with proper temperature is injected to a heat exchange liquid inlet of the outer cylinder according to actual needs, and the heat exchange liquid is discharged from a heat exchange liquid outlet after heat exchange is carried out on the heat exchange liquid passing through the heat preservation groove and the materials in the inner cylinder, so that the temperature of the materials in the inner cylinder is controlled, and the constant temperature is kept.
The invention has the beneficial effects that the temperature of the product extruded in the die is finely controlled by more than two sets of heat preservation grooves in a heat exchange mode, so that the product keeps constant temperature, and the performance of the product is improved or improved.
Drawings
FIG. 1 is a schematic diagram of the separation state of the present invention;
FIG. 2 is a schematic diagram of the overall state of the present invention;
fig. 3 is an enlarged view of the step in fig. 1.
Detailed Description
The invention is further explained and illustrated below with reference to the drawings.
Referring to fig. 1-3, an extrusion molding mold with a temperature control function comprises a molding section 1 connected with a material pushing screw section, wherein the molding section 1 comprises an inner cylinder 11 connected with the material pushing screw section in a sealing way, an outer cylinder 12 sleeved outside the inner cylinder 11 and more than one set of heat preservation grooves 2 arranged between the inner cylinder 11 and the outer cylinder 12 and used for maintaining the constant temperature of products in the inner cylinder, sealing steps 3 are arranged at two ends of the inner cylinder 11, each sealing step 3 comprises a first step 31 which is axially extended and used for being connected with the material pushing screw section in a sealing way and a second step 32 which is radially extended and used for being connected with the outer cylinder in a sealing way, more than two sets of heat exchange liquid inlets 121 and heat exchange liquid outlets 122 are arranged on the outer cylinder 12, the two ends of each heat preservation groove 2 are matched with the heat exchange liquid inlets and the heat exchange liquid outlets, and the heat preservation grooves are spirally arranged between the inner cylinder and the outer cylinder. When the product extruded into the inner cylinder 11 needs to be subjected to constant temperature treatment, heat exchange liquid is injected into the heat preservation tank from the heat exchange liquid inlet 121, and the heat exchange liquid can be higher-temperature liquid for heating the product or lower-temperature liquid for cooling the product.
Wherein, three sets of heat exchange liquid inlets 121 and heat exchange liquid outlets 122 are arranged on the outer cylinder 12, three sets of heat preservation grooves 2 are arranged on the outer cylinder and are matched with the heat exchange liquid inlets 121 and the heat exchange liquid outlets 122 of the outer cylinder 12, and generally, in the whole temperature control system, a plurality of sets of heat exchange liquid inlets 121 and heat exchange liquid outlets 122 and corresponding heat preservation grooves 2 ensure that the whole product is in a constant temperature state.
The spiral angle of the heat preservation groove 2 is 30-60 degrees, heat preservation grooves with different spiral angles are selected according to the performance of heat exchange liquid, the flowing speed and the flowing path of the heat exchange liquid are adjusted, and the constant temperature of the product is ensured.
The die also comprises a supporting device for supporting the die, the supporting device comprises a supporting seat 51 positioned at the head end and a supporting plate 52 positioned at the tail end, and a supporting rod 53 is arranged between the supporting seat 51 and the supporting plate 52.
The shape of the inner cylinder 11 is a cylinder or a polygon, and the change of the shape is determined according to the actual requirement of the user, for example, a product with a round bar shape is needed, and the shape of the inner cylinder 11 is designed to be a cylinder.
The heat exchange liquid is water with proper temperature, and of course, if the heat release is needed to be larger, other heat exchange liquids can be changed.
Correspondingly, the invention also provides a temperature control method of the extrusion molding die with the temperature control function, the method uses the die in the invention, and the temperature control method comprises the following steps: while pushing the material to the molding section, the material pushing screw injects heat exchange liquid with proper temperature into the heat exchange liquid inlet 121 of the outer cylinder according to actual needs, and the heat exchange liquid is discharged from the heat exchange liquid outlet 122 after heat exchange is performed between the heat preservation tank 2 and the material in the inner cylinder, so as to control the temperature of the material in the inner cylinder and keep constant temperature.
Taking round bar shape (diameter 15 cm) prepared by POM material as an example, adopting a traditional die and the constant temperature die provided by the invention for extrusion molding (before improvement and after improvement), accurately adjusting the constant temperature of a sectional control area to 82-85 ℃ (temperature setting is carried out according to material and product size, different products and temperature), and then adopting an intra-line standard method for the products before improvement and after improvement to carry out performance test, wherein the test results are as follows:
from the test results, the performance of the product is improved and improved by optimizing without changing the density of the product.
Claims (7)
1. The extrusion forming die with the temperature control function is characterized by comprising a forming section connected with a material pushing screw section, wherein the forming section comprises an inner cylinder connected with the material pushing screw section in a sealing way, an outer cylinder arranged outside the inner cylinder in a sealing way and more than one set of heat preservation grooves arranged between the inner cylinder and the outer cylinder and used for maintaining the constant temperature of products in the inner cylinder, sealing steps are arranged at two ends of the inner cylinder and comprise a first step extending axially and a second step extending radially and used for being connected with the outer cylinder in a sealing way, more than two sets of heat exchange liquid inlets and heat exchange liquid outlets are arranged on the outer cylinder, two ends of the heat preservation grooves are matched with the heat exchange liquid inlets and the heat exchange liquid outlets, and the heat preservation grooves are arranged between the inner cylinder and the outer cylinder in a spiral shape.
2. The extrusion die with temperature control function as set forth in claim 1, wherein said outer cylinder is provided with three sets of heat-retaining grooves, and three sets of heat-exchanging liquid inlets and heat-exchanging liquid outlets for use in cooperation with three sets of said heat-retaining grooves.
3. The extrusion die with temperature control function as claimed in claim 2, wherein the screw angle of the heat preservation groove is 30-60 °.
4. The extrusion die with temperature control function as set forth in claim 1, wherein the die further comprises a supporting device for supporting the die, the supporting device comprises a supporting seat at a head end and a supporting plate at a tail end, and a supporting rod is arranged between the supporting seat and the supporting plate.
5. The extrusion die with temperature control function as claimed in claim 1, wherein the inner cylinder is cylindrical or polygonal in shape.
6. The extrusion die with temperature control function as set forth in claim 1, wherein said heat exchange fluid is water of a suitable temperature.
7. A temperature control method of an extrusion die having a temperature control function as claimed in any one of claims 1 to 5, wherein the temperature control method comprises the steps of: and when the material pushing screw pushes materials to the forming section, heat exchange liquid with proper temperature is injected to a heat exchange liquid inlet of the outer cylinder according to actual needs, and the heat exchange liquid is discharged from a heat exchange liquid outlet after heat exchange is carried out on the heat exchange liquid passing through the heat preservation groove and the materials in the inner cylinder so as to control the temperature of the materials in the inner cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310392021.1A CN116277683A (en) | 2023-04-13 | 2023-04-13 | Extrusion forming die with temperature control function and temperature control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310392021.1A CN116277683A (en) | 2023-04-13 | 2023-04-13 | Extrusion forming die with temperature control function and temperature control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116277683A true CN116277683A (en) | 2023-06-23 |
Family
ID=86803351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310392021.1A Pending CN116277683A (en) | 2023-04-13 | 2023-04-13 | Extrusion forming die with temperature control function and temperature control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116277683A (en) |
-
2023
- 2023-04-13 CN CN202310392021.1A patent/CN116277683A/en active Pending
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