CN115946333A - Novel polymer bridge accessory processing method - Google Patents
Novel polymer bridge accessory processing method Download PDFInfo
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- CN115946333A CN115946333A CN202211530647.6A CN202211530647A CN115946333A CN 115946333 A CN115946333 A CN 115946333A CN 202211530647 A CN202211530647 A CN 202211530647A CN 115946333 A CN115946333 A CN 115946333A
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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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- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention discloses a novel method for processing a polymer bridge accessory, relates to the technical field of polymer processing and forming, solves the problem that the existing polymer bridge blister forming method cannot process a plate with larger thickness, improves the forming efficiency, and adopts the following specific scheme: placing a plate to be processed on the plate fixing frame and fixing the periphery of the plate; the heating module moves to a plate area to be processed to heat the plate, and the heating module resets after heating is completed; coating the softened plate on the periphery of the outer wall of the mold, vacuumizing the lower part of the plate, synchronously blowing compressed air above the plate, and stopping vacuumizing and blowing the compressed air after molding is finished; after the plate is formed, the blow molding module blows air to the plate for cooling, and the blow molding module rises to the initial position after cooling; ejecting a finished product out of the die by virtue of an ejector pin; and cutting the edges and corners of the finished product.
Description
Technical Field
The invention relates to the technical field of polymer processing and forming, in particular to a novel polymer bridge frame accessory processing method.
Background
Most of accessories used in the polymer bridge frame system are formed by splicing extruded parts or injection-molded parts after being cut, the equipment and the die are high in cost, secondary assembly needs to be carried out manually, time and labor are consumed, the product is not attractive, and at present, in order to improve the processing efficiency and the attractiveness, a plastic suction method is adopted for processing and forming the polymer bridge frame accessories.
The inventor finds that although the plastic suction mode can improve the processing efficiency and the aesthetic property of the polymer bridge accessory, the application range is limited, and when the thickness of the plate to be formed is larger (larger than 4 mm), the plastic suction mode cannot well achieve the purpose of forming the plate, so that the polymer bridge accessory cannot be formed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a novel method for processing a polymer bridge frame accessory, which is used for carrying out plastic suction operation on one surface of a plate and carrying out blow molding operation on the other surface of the plate, so that the molding effect and efficiency are improved under the condition that the blow molding and the plastic suction are carried out synchronously, and the problem that the plate with larger thickness cannot be processed by the conventional polymer bridge frame plastic suction molding method is solved.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, the invention provides a method for processing a novel polymer bridge accessory, which comprises the following steps:
placing a plate to be processed on the plate fixing frame and fixing the periphery of the plate;
the heating module moves to the area of the plate to be processed to heat the plate, and the heating module resets after heating is completed;
coating the softened plate on the periphery of the outer wall of the mold, vacuumizing the lower part of the plate, synchronously blowing compressed air above the plate, and stopping vacuumizing and blowing the compressed air after molding is finished;
after the plate is formed, the blow molding module blows air to the plate for cooling, and the blow molding module rises to the initial position after cooling;
ejecting a finished product out of the die by virtue of an ejector pin;
and cutting the edges and corners of the finished product.
As a further implementation manner, the heating module synchronously heats the upper surface and the lower surface of the plate.
As a further implementation mode, the ejector pins are arranged in the mold, and the mold is further provided with air exhaust holes.
As a further implementation, the area of the sheet is larger than the cross-sectional area of the die.
As a further implementation, the bottom of the blow molding module is in close contact with the upper surface of the sheet holder.
As a further implementation mode, the blow molding module is of a square groove structure, and the wall of the groove is provided with a blow hole.
As a further implementation, the depth of the blow molding module is greater than the sum of the mold and sheet thicknesses.
As a further implementation, in the blow molding and blister process, the bottom surface of the plate fixing frame is flush with the bottom surface of the mold.
As a further implementation, the heating module is composed of two layers of heating plates, and the plate is located between the two layers of heating plates in the heating process.
As a further implementation mode, when the plate is cooled, the blowing module is lifted to a set height and then is subjected to blowing cooling operation.
The beneficial effects of the invention are as follows:
(1) According to the invention, the plastic suction operation is carried out on one surface of the plate, the blow molding operation is carried out on the other surface of the plate, the molding efficiency of the plate is greatly improved under the synchronous operation of the blow molding and the plastic suction, the molding efficiency and the attractiveness of the plate are improved while the effective molding of the thicker plate is ensured, and the molding requirements of the plates with different thicknesses can be met.
(2) The upper surface and the lower surface of the plate are simultaneously heated, so that the heating time of the plate is greatly shortened, the uniform heating of a thicker plate can be ensured, the heating speed is improved, and the crystallization problem caused by overlong heating time can be avoided.
(3) The finished product is ejected by the ejector pin, so that the demoulding can be more convenient and quicker, and the problem of demoulding failure caused by the fact that a seam leaks air between the product and the mould in a blowing demoulding mode is solved.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
As introduced in the background art, although the plastic suction method can improve the processing efficiency and the aesthetic property of the polymer bridge accessory, the application range of the method is limited, and when the thickness of the plate to be formed is larger (greater than 4 mm), the plastic suction forming method cannot well achieve the purpose of forming the plate, so that the polymer bridge accessory cannot be formed successfully.
Example 1
In a typical embodiment of the present invention, a method for processing a novel polymer bridge accessory is provided, which specifically comprises the following steps:
step 1: feeding material
The PVC plate to be processed is placed on a plate fixing frame of a plastic suction machine, the periphery of the plate is fixed by utilizing a buckle, the plate is prevented from being warped in the heating process, and the plate fixing frame can move up and down under the driving of an air cylinder;
the plate fixing frame is of a frame-shaped structure with a vacant space, and can clamp the periphery of a plate and drive the plate to move.
Step 2: heating of
In this embodiment, adopt infrared lamp pipe to heat, the fluorescent tube is installed on the heating module that has two-layer upper and lower hot plate, and the heating module comprises two-layer hot plate, and the hot plate of both sides is parallel to each other, all installs infrared lamp pipe on every layer of hot plate.
Before heating, the heating module horizontally moves to a PVC plate area to be processed by virtue of the air cylinder, so that the PVC plate is positioned between the two heating plates, the upper surface and the lower surface of the PVC plate are simultaneously heated during heating, the plate with thicker thickness (4 mm-12 mm) can be processed, and after heating is finished, the heating module leaves the PVC plate fixing frame area and returns to the original position under the driving of the air cylinder;
the heating temperature of the heating module is set to be 150-160 ℃, and the heating time is 10-20s, so as to ensure that the PVC plate is sufficiently heated.
Because the upper surface and the lower surface of the plate are heated simultaneously, the heating time of the plate is greatly shortened, the uniform heating of a thicker plate can be ensured, the heating speed is increased, and the crystallization problem caused by overlong heating time can be avoided.
It is understood that in other embodiments, a radiant heater or the like may be used to heat the sheet material, and the specific heating device may be selected according to actual requirements without limitation.
And step 3: shaping of
The plate fixing frame is lowered onto the mold, the mold is provided with an air suction hole and an ejector pin, the bottom surface of the plate fixing frame is flush with the bottom surface of the mold, the area of the plate is larger than the area of the cross section of the mold, the softened plate is partially coated on the periphery of the outer wall of the mold, the rest part of the softened plate is positioned above the forming cavity of the mold, then the blow molding module positioned above the plate fixing frame is lowered, the bottom of the blow molding module is tightly fixed with the upper surface of the plate fixing frame through the air cylinder of the plastic suction module, and the periphery is ensured to be airtight;
opening a vacuum pump and a compressed air switch, vacuumizing the lower part of the PVC plate, synchronously blowing compressed air above the PVC plate to enable the PVC plate to be quickly adsorbed on a mold, then closing the vacuum pump and the compressed air switch, and stopping the plastic sucking and the blow molding;
the blow molding module is a square groove, the depth of the groove is greater than the sum of the thicknesses of the mold and the plate, and the wall of the groove is provided with a blow hole;
in the embodiment, the vacuum degree is 0.09MPa, the compressed air pressure is about 0.6-0.8MPa, and the molding duration is 10-20 s.
The upper surface and the lower surface of the plate are respectively subjected to plastic suction and blow molding, so that the forming efficiency of the plate is greatly improved, and the forming efficiency and the attractiveness of the plate are ensured while the effective forming of a thicker plate is ensured.
It can be understood that the arrangement position of the ejector pin can be determined according to actual design requirements, only the finished product in the mold can be ejected out, the specific structure is not limited too much, and the interior of the mold is communicated with a vacuum pump so as to carry out vacuum pumping under the action of the vacuum pump.
And 4, step 4: cooling down
After the plate is formed, the blow molding module rises by 3-5cm, a compressed air switch is turned on, the temperature is reduced by blowing compressed air for about 15s, then the compressed air switch is turned off, and the blow molding module rises to return to the initial position;
and 5: demoulding
The mould is provided with an ejector pin, the ejector pin provides power by virtue of the air cylinder, the product is ejected out after the product is molded and cooled, and then the plate fixing frame is lifted to restore to the initial position;
the demoulding can be more convenient and quicker by means of the ejection of the hydraulic thimble, and if the demoulding is carried out by means of air blowing, the product can be stopped at a position which is 5mm away from an upper opening in the mould due to air leakage after a slit is generated between the product and the mould;
step 6: cutting of
The edge angle is cut by utilizing a five-axis numerical control engraving machine, and for some products with special structures, cutting is not needed.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A novel polymer bridge frame accessory processing method is characterized by comprising the following steps:
placing a plate to be processed on the plate fixing frame and fixing the periphery of the plate;
the heating module moves to a plate area to be processed to heat the plate, and the heating module resets after heating is completed;
coating the softened plate on the periphery of the outer wall of the mold, vacuumizing the lower part of the plate, synchronously blowing compressed air above the plate, and stopping vacuumizing and blowing the compressed air after molding is finished;
after the plate is formed, the blow molding module blows air to the plate for cooling, and the blow molding module rises to the initial position after cooling;
ejecting a finished product out of the die by virtue of an ejector pin;
and cutting the edges and corners of the finished product.
2. The processing method of the novel polymer bridge frame accessory according to claim 1, wherein the heating module synchronously heats the upper surface and the lower surface of the plate.
3. The method for processing the novel polymer bridge frame accessory according to claim 1, wherein the ejector pins are arranged in a mold, and the mold is further provided with air suction holes.
4. The method as claimed in claim 1, wherein the area of the plate is larger than the cross-sectional area of the mold.
5. The method as claimed in claim 1, wherein the bottom of the blow molding module is in close contact with the upper surface of the plate holder.
6. The method as claimed in claim 1, wherein the blow molding module has a square groove structure, and a blowing hole is formed in a wall of the groove.
7. The method as claimed in claim 1, wherein the depth of the blow molding module is greater than the sum of the thicknesses of the mold and the plate.
8. The method as claimed in claim 1, wherein the bottom surface of the plate holder is flush with the bottom surface of the mold during the blow molding and the suction molding.
9. The method as claimed in claim 1, wherein the heating module comprises two heating plates, and the plate is located between the two heating plates during heating.
10. The processing method of the novel polymer bridge frame accessory according to claim 1, wherein when the plate is cooled, the blowing module is lifted to a set height and then is blown to cool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211530647.6A CN115946333A (en) | 2022-12-01 | 2022-12-01 | Novel polymer bridge accessory processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211530647.6A CN115946333A (en) | 2022-12-01 | 2022-12-01 | Novel polymer bridge accessory processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115946333A true CN115946333A (en) | 2023-04-11 |
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ID=87288240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211530647.6A Pending CN115946333A (en) | 2022-12-01 | 2022-12-01 | Novel polymer bridge accessory processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115946333A (en) |
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2022
- 2022-12-01 CN CN202211530647.6A patent/CN115946333A/en active Pending
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