CN114953375A - Plastic injection molding production process - Google Patents
Plastic injection molding production process Download PDFInfo
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- CN114953375A CN114953375A CN202210584031.0A CN202210584031A CN114953375A CN 114953375 A CN114953375 A CN 114953375A CN 202210584031 A CN202210584031 A CN 202210584031A CN 114953375 A CN114953375 A CN 114953375A
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- smooth platform
- flat plate
- platform
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- plastic flat
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/7207—Heating or cooling of the moulded articles
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a plastic injection molding production process, which belongs to the field of injection molding production processes and comprises the following steps: arranging a double-layer smooth platform, and adding liquid to the surface of the double-layer smooth platform to uniformly distribute the liquid on the surface of the double-layer smooth platform; manufacturing and molding a plastic flat plate by an injection molding process; placing the demolded plastic flat plate on the surface of a double-layer smooth platform; applying force to enable the plastic flat plate to rub on the surface of the double-layer smooth platform distributed with liquid, enabling the plastic flat plate and the double-layer smooth platform to be adsorbed in vacuum through the liquid, and removing the force application; further cooling and shaping the vacuum-adsorbed plastic flat plate and the double-layer smooth platform; the plastic flat plate which is cooled and shaped is separated from the double-layer smooth platform, the plastic flat plate is picked up, the smooth platform is arranged into two layers which are mutually nested, after the shaping is completed, one layer of smooth platform part is extracted, the suction force of the smooth platform on the plastic flat plate through liquid is reduced, and the plastic flat plate can be smoothly moved out.
Description
Technical Field
The invention relates to the field of injection molding production processes, in particular to a plastic injection molding production process.
Background
The existing plastic flat injection molding process mainly comprises 5 stages of mold closing, filling, pressure maintaining, cooling and demolding, wherein the design of a cooling system is very important. The reason is that the formed plastic product can be prevented from deforming due to the elimination process of external force and internal stress after being demoulded only after being cooled and solidified to certain rigidity. The cooling time accounts for about 70-80% of the whole molding cycle, so that the well designed cooling system can greatly shorten the molding time, improve the injection molding productivity and reduce the cost. An improperly designed cooling system can prolong the forming time and increase the cost; uneven cooling further causes warpage of the plastic article. The cooling water pipes are arranged at the common mold cavities in the prior art, so that the cooling effect is enhanced, the number of the cooling water pipes is increased, the pipe diameter of the cooling water pipes is enlarged, the injection molding cost is increased, the cooling water pipes with more number are limited by the mold structure, and the plastic products cannot be uniformly distributed and are easily cooled and unevenly, so that the plastic products are further warped and deformed.
In order to solve the above problems, the chinese granted patent publication No. CN104875324B provides an injection molding process for reducing warpage of a plastic flat plate, comprising the following steps: 1. arranging a smooth platform, and adding liquid to the surface of the smooth platform to uniformly distribute the liquid on the surface of the smooth platform; 2. manufacturing and molding a plastic flat plate by an injection molding process; 3. placing the demolded plastic flat plate on the smooth platform; 4. applying force to make the plastic flat plate rub or vibrate the smooth platform on the surface of the smooth platform on which liquid is distributed, and enabling the plastic flat plate and the smooth platform to be adsorbed in vacuum through the liquid to remove the force; 5. further cooling and shaping the vacuum-adsorbed plastic flat plate and the smooth platform; 6. and separating the cooled and shaped plastic flat plate from the smooth platform, and picking up the plastic flat plate. The injection molding processing technology has simple flow and wide application range, and only needs to flatly attach the plastic flat plate to the smooth platform attached with liquid; the plastic flat plate is reduced in warpage deformation in the cooling and shaping process by utilizing the vacuum adsorption force, the yield of the plastic flat plate is greatly increased on the basis of not modifying the original matched production equipment for injection molding production, the injection molding production time is shortened, and the market economic benefit is better.
The dull and stereotyped design of plastics among the above-mentioned technical scheme utilizes the liquid on the smooth platform to its suction that produces, but at the in-process that breaks away from smooth platform, equally can receive the suction of liquid to receive the effect of dragging of certain power, this power is inhomogeneous, makes the roughness of the dull and stereotyped plastics receive the secondary and destroys easily, especially under the insufficient condition of cooling design, makes the roughness of the dull and stereotyped plastics receive the secondary and destroys more easily.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide a plastic injection molding production process, which aims to solve the problems in the prior art, wherein a smooth platform is arranged into two layers which are mutually nested, and after shaping is finished, one layer of smooth platform part is extracted, so that the suction force of the smooth platform on a plastic flat plate through liquid is reduced, and the plastic flat plate can be smoothly removed.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A plastic injection molding production process comprises the following steps:
and 6, separating the cooled and shaped plastic flat plate from the double-layer smooth platform, and picking up the plastic flat plate.
The smooth platforms are arranged into two layers which are mutually nested, after the shaping is finished, one layer of smooth platform part is extracted, the suction force of the smooth platform on the plastic flat plate through liquid is reduced, and the plastic flat plate can be smoothly moved out.
Further, the double-layer smooth platform comprises a first smooth platform, a second smooth platform and a pair of side supporting plates, the first smooth platform and the second smooth platform are both positioned between the pair of side supporting plates, the second smooth platform is positioned at the lower side of the first smooth platform, the left and right ends of the first smooth platform are respectively fixedly connected with the upper ends of a pair of side supporting plates, the lower side of the first smooth platform is provided with a mounting bottom plate, the left end and the right end of the mounting bottom plate are respectively fixedly connected with the side ends of a pair of side supporting plates, a hydraulic cylinder is fixedly connected at the center of the upper end of the mounting bottom plate, the power output end of the hydraulic cylinder is fixedly connected with the lower end of the second smooth platform, the smooth platform of second upper end fixedly connected with a plurality of packed columns, it is a plurality of the packed column is evenly arranged on the smooth platform of second, it has a plurality ofly and packed column assorted absorption hole to cut on the smooth platform of first.
Furthermore, the height of the filling column is consistent with the depth of the force dissipation hole, so that the upper surface of the filling column is flush with the upper hole edge of the force dissipation hole, namely the upper surface of the filling column is flush with the upper surface of the first smooth platform, under the condition that the first smooth platform and the second smooth platform are tightly attached, and the surface of the first smooth platform is smooth so as to ensure the stable shaping of a plastic plate.
Furthermore, the diameter of the filling column is smaller than the aperture of the force eliminating hole by 0.2-0.5mm, on the basis of ensuring that the filling column can be smoothly inserted into the force eliminating hole, the gap between the filling column and the force eliminating hole is controlled to be 0.1-0.25mm, a part of liquid can be allowed to enter the gap, and the liquid can stably and uniformly stay on the surface of the first smooth platform by utilizing the tension between the liquid in the gap and the liquid on the surface of the first smooth platform.
Furthermore, first smooth platform and packed column upper surface all are through polishing treatment, and first smooth platform and packed column upper surface after polishing treatment are smooth, but the friction between the first smooth platform of greatly reduced and packed column upper surface and the plastics flat board reduces the wearing and tearing to first smooth platform and packed column upper surface, also reduces the wearing and tearing to the dull and stereotyped surface of plastics simultaneously.
It is further, it is a pair of vertical spout has all been dug on the terminal surface that the collateral branch fagging is close to each other, the smooth platform of second left and right sides a pair of slider of the equal fixedly connected with in both ends, slider and vertical spout sliding connection utilize the slider to match with vertical spout for the smooth platform of second receives the restriction of collateral branch fagging, is favorable to the smooth platform of second stable rising and descends.
Furthermore, the first smooth platform, the second smooth platform and the filling column are all made of microcrystalline glass, the microcrystalline glass has the dual characteristics of glass and ceramic, but the microcrystalline glass is higher in brightness than the ceramic and stronger in toughness than the glass, and direct observation of operators in the operation process is facilitated.
Furthermore, the smooth platform of second and packed column be integrated into one piece, and integrated into one piece's advantage lies in that the packed column is difficult for unexpected the droing.
Furthermore, in the step 1, when the liquid is added, the liquid level of the surface of the first smooth platform needs to be ensured to be on the same horizontal plane, the plastic flat plate can be ensured to be in complete contact with the liquid level, the shaping effect is enhanced, and the specific operation can be determined according to the means of the prior art.
Further, in step 6, when the plastic slab is cooled and shaped, the hydraulic cylinder is started, the power output end of the hydraulic cylinder drives the second smooth platform to move downwards, so that the filling columns are separated from the force dissipation holes, and because the filling columns are uniformly distributed, the adhesive force to the plastic slab is uniformly dispersed in the process that the filling columns are separated from the force dissipation holes, so that the secondary deformation of the plastic slab is avoided.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) according to the scheme, the smooth platforms are arranged into two layers which are mutually nested, after the shaping is completed, one layer of smooth platform part is extracted, the suction force of the smooth platform on the plastic flat plate through liquid is reduced, and the plastic flat plate can be smoothly moved out.
(2) The double-layer smooth platform comprises a first smooth platform, a second smooth platform and a pair of side supporting plates, the first smooth platform and the second smooth platform of the sliding block are positioned between the pair of side supporting plates, and the smooth platform of second is located first smooth platform downside, both ends respectively with a pair of collateral branch fagging upper end fixed connection about the first smooth platform of slider, the first smooth platform downside of slider is equipped with mounting plate, both ends respectively with a pair of collateral branch fagging side fixed connection about the slider mounting plate, slider mounting plate upper end center department fixedly connected with pneumatic cylinder, the power take off end and the smooth platform lower extreme fixed connection of second of slider pneumatic cylinder, a plurality of packing posts of slider second smooth platform upper end fixedly connected with, a plurality of slider packing posts evenly arrange on the smooth platform of second, it has a plurality ofly and packing post assorted absorption hole to open a hole on the first smooth platform of slider.
(3) The height of the packed column is consistent with the depth of the hole in the force dissipation hole, so that under the condition that the first smooth platform and the second smooth platform are tightly attached, the upper surface of the packed column is flush with the upper hole edge of the force dissipation hole, namely the upper surface of the packed column is flush with the upper surface of the first smooth platform, so that the surface of the first smooth platform is smooth, and the plastic plate is guaranteed to be stably shaped.
(4) The diameter of the filling column is smaller than the aperture of the force eliminating hole by 0.2-0.5mm, on the basis of ensuring that the filling column can be smoothly inserted into the force eliminating hole, the gap between the filling column and the force eliminating hole is controlled to be 0.1-0.25mm, a part of liquid can be allowed to enter the gap, and the liquid can stably and uniformly stay on the surface of the first smooth platform by utilizing the tension between the liquid in the gap and the liquid on the surface of the first smooth platform.
(5) First smooth platform and packed column upper surface all are through polishing treatment, and first smooth platform and packed column upper surface after polishing treatment are level and smooth, but the first smooth platform of greatly reduced and the friction between packed column upper surface and the plastics flat board reduce the wearing and tearing to first smooth platform and packed column upper surface, also reduce the wearing and tearing to the dull and stereotyped surface of plastics simultaneously.
(6) A pair of vertical sliding grooves are drilled on the end face, close to each other, of the side supporting plates of the pair of sliding blocks, a pair of sliding blocks are fixedly connected to the left end and the right end of the sliding block second smooth platform, the sliding blocks are connected with the vertical sliding grooves in a sliding mode, the sliding blocks are matched with the vertical sliding grooves, the second smooth platform is limited by the side supporting plates, and stable rising and falling of the second smooth platform are facilitated.
(7) First smooth platform, the smooth platform of second and packed column all adopt glass ceramics preparation to form, and glass ceramics has glass and ceramic dual characteristic, but glass ceramics luminance height than ceramic, and is stronger than glass toughness, makes things convenient for operating personnel's direct observation in the operation process.
(8) The smooth platform of second and packed column be integrated into one piece, and integrated fashioned advantage lies in that the packed column is difficult for unexpected the droing.
(9) In the step 1, when the slider liquid is added, the liquid level of the first smooth platform surface of the slider needs to be ensured to be on the same horizontal plane, the plastic flat plate can be ensured to be in complete contact with the liquid level, the shaping effect is enhanced, and the specific operation can be determined according to the means in the prior art.
(10) In step 6, when the sliding block plastic flat plate is cooled and shaped, the sliding block hydraulic cylinder is started, the power output end of the sliding block hydraulic cylinder drives the second smooth platform to move downwards, so that the sliding block filling column is separated from the force dissipation hole, the 'adhesive force' of the plastic flat plate in the process that the filling column is separated from the force dissipation hole is uniformly dispersed, secondary deformation of the plastic flat plate cannot be caused, on the contrary, in the process that the filling column is separated from the force dissipation hole, the plastic flat plate can be further shaped by utilizing the 'adhesive force' of the plastic flat plate, particularly under the condition of insufficient cooling and shaping, the flatness can be further optimized, at the moment, the sliding block plastic flat plate can be separated from the first smooth platform, and the sliding block plastic flat plate can be picked up.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a perspective view of the double smooth platform of the present invention in a set state;
FIG. 3 is a perspective view of the double smooth platform of the present invention after it has been shaped;
FIG. 4 is an exploded view of a two-layer smooth platform of the present invention;
FIG. 5 is a partial perspective view of a two-layer smooth platform of the present invention.
The reference numbers in the figures illustrate:
the device comprises a first smooth platform 1, a second smooth platform 2, a side supporting plate 3, a hydraulic cylinder 4, a mounting bottom plate 5, a filling column 6, a force eliminating hole 7, a vertical sliding groove 8 and a sliding block 9.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "fitted/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Example 1:
referring to fig. 1, a plastic injection molding process includes the following steps:
and 6, separating the cooled and shaped plastic flat plate from the double-layer smooth platform, and picking up the plastic flat plate.
The smooth platforms are arranged into two layers which are mutually nested, after the shaping is completed, one layer of smooth platform part is extracted, the suction force of the smooth platform to the plastic flat plate through liquid is reduced, and the plastic flat plate can be smoothly moved out.
The double-layer smooth platform comprises a first smooth platform 1, a second smooth platform 2 and a pair of side supporting plates 3, wherein the first smooth platform 1 and the second smooth platform 2 are both positioned between the pair of side supporting plates 3, and the smooth platform 2 of second is located 1 downside of first smooth platform, both ends respectively with 3 upper ends fixed connection of a pair of collateral branch fagging about first smooth platform 1, 1 downside of first smooth platform is equipped with mounting plate 5, both ends respectively with 3 side fixed connection of a pair of collateral branch fagging about mounting plate 5, 5 upper end center department fixedly connected with pneumatic cylinder 4 of mounting plate, the power take off end and the smooth platform 2 lower extreme fixed connection of second of pneumatic cylinder 4, 2 upper ends fixedly connected with a plurality of packing posts 6 of the smooth platform of second, a plurality of packing posts 6 are evenly arranged on smooth platform 2 of second, it has a plurality ofly and 6 assorted power dissipation holes 7 of packing post to open the chisel on the first smooth platform 1.
The height of the packed column 6 is consistent with the depth of the hole of the force dissipation hole 7, so that the upper surface of the packed column 6 is flush with the upper surface of the first smooth platform 1 along the upper hole edge of the force dissipation hole 7 under the state that the first smooth platform 1 and the second smooth platform 2 are tightly attached, and the surface of the first smooth platform 1 is smooth so as to ensure the stable shaping of a plastic plate.
The diameter of the filling column 6 is smaller than the aperture of the force eliminating hole 7 by 0.2-0.5mm, on the basis of ensuring that the filling column 6 can be smoothly inserted into the force eliminating hole 7, the gap between the filling column 6 and the force eliminating hole 7 is controlled to be 0.1-0.25mm, a part of liquid can be allowed to enter the gap, and the liquid can stably and uniformly stay on the surface of the first smooth platform 1 by utilizing the tension between the liquid in the gap and the liquid on the surface of the first smooth platform 1.
First smooth platform 1 and the upper surface of packing column 6 all are through polishing treatment, and first smooth platform 1 and the upper surface of packing column 6 after polishing treatment are level and smooth, but the friction between the first smooth platform 1 of greatly reduced and the upper surface of packing column 6 and the plastics flat board reduces the wearing and tearing to first smooth platform 1 and the upper surface of packing column 6, also reduces the wearing and tearing to the dull and stereotyped surface of plastics simultaneously.
A pair of vertical chute 8 has all been dug on the terminal surface that a pair of collateral branch fagging 3 is close to each other, and the smooth platform 2 of second is controlled the equal a pair of slider 9 of fixedly connected with in both ends, and slider 9 and 8 sliding connection of vertical chute utilize slider 9 and 8 matches of vertical chute for smooth platform 2 of second receives the restriction of collateral branch fagging 3, is favorable to the smooth platform 2 of second stable rising and decline.
First smooth platform 1, the smooth platform 2 of second and packed column 6 all adopt glass ceramics preparation to form, and glass ceramics has the dual characteristic of glass and pottery, but glass ceramics is higher than the luminance of pottery, and is stronger than glass toughness, makes things convenient for operating personnel's direct observation in the operation process.
The second smooth platform 2 and the filling column 6 are integrally formed, and the integrally formed filling column 6 is not easy to fall off accidentally.
In the step 1, when liquid is added, the liquid level of the surface of the first smooth platform 1 needs to be ensured to be on the same horizontal plane, the plastic flat plate can be ensured to be in complete contact with the liquid level, the shaping effect is enhanced, and the specific operation can be determined according to the means of the prior art.
In step 6, when the plastic flat plate is cooled and shaped, please refer to fig. 2, the hydraulic cylinder 4 is started, the power output end of the hydraulic cylinder 4 drives the second smooth platform 2 to move downwards, so that the filling column 6 is separated from the force dissipation hole 7, and since the filling column 6 is uniformly distributed, the adhesive force to the plastic flat plate is uniformly dispersed in the process that the filling column 6 is separated from the force dissipation hole 7, so that the secondary deformation of the plastic flat plate is not caused, on the contrary, in the process that the filling column 6 is separated from the force dissipation hole 7, the plastic flat plate can be further shaped by using the adhesive force to the plastic flat plate, and particularly under the condition of insufficient cooling and shaping, the flatness is further optimized, and at this time, the plastic flat plate can be separated from the first smooth platform 1 to pick up the plastic flat plate.
The dull and stereotyped design of plastics among the technical scheme of the patent of granting of contrast utilizes the liquid on the smooth platform to its suction that produces, but at the in-process that breaks away from smooth platform, equally can receive the suction of liquid to receive the effect of dragging of certain power, this power is inhomogeneous, makes the roughness of the dull and stereotyped plastics receive the secondary and destroys easily, especially under the insufficient condition of cooling design, makes the roughness of the dull and stereotyped plastics receive the secondary and destroys more easily.
This scheme compares with the technical scheme of comparison patent, and the advantage lies in setting smooth platform to two-layer nested each other, after finalizing the design, extracts the smooth platform part of one deck wherein, reduces smooth platform and passes through the suction that liquid produced the dull and stereotyped plastics, can shift out the dull and stereotyped plastics smoothly.
The specific operation mode after the shaping is finished is as follows: an operator starts the hydraulic cylinder 4, the power output end of the hydraulic cylinder 4 drives the second smooth platform 2 to move downwards, so that the filling column 6 is separated from the force dissipation hole 7, and the filling column 6 is uniformly distributed, so that the adhesive force to the plastic flat plate is uniformly dispersed in the process that the filling column 6 is separated from the force dissipation hole 7, and the secondary deformation of the plastic flat plate is avoided; in addition, in the process that the filling column 6 is separated from the force eliminating hole 7, the adsorption force of liquid on the plastic flat plate is gradually weakened, the vacuum adsorption is gradually disappeared, and the plastic flat plate can be easily picked up at the moment.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (9)
1. A plastic injection molding production process is characterized in that: the method comprises the following steps:
step 1, arranging a double-layer smooth platform, and adding liquid to the surface of the double-layer smooth platform to uniformly distribute the liquid on the surface of the double-layer smooth platform;
step 2, manufacturing and molding the plastic flat plate through an injection molding process;
step 3, placing the demolded plastic flat plate on the surface of a double-layer smooth platform;
step 4, applying force to enable the plastic flat plate to rub on the surface of the double-layer smooth platform distributed with liquid, enabling the plastic flat plate and the double-layer smooth platform to be adsorbed in vacuum through the liquid, and removing the applied force;
step 5, further cooling and shaping the vacuum-adsorbed plastic flat plate and the double-layer smooth platform;
and 6, separating the cooled and shaped plastic flat plate from the double-layer smooth platform, and picking up the plastic flat plate.
The double-layer smooth platform comprises a first smooth platform (1), a second smooth platform (2) and a pair of lateral supporting plates (3), wherein the first smooth platform (1) and the second smooth platform (2) are both positioned between the lateral supporting plates (3), the second smooth platform (2) is positioned at the lower side of the first smooth platform (1), the left end and the right end of the first smooth platform (1) are respectively fixedly connected with the upper ends of the lateral supporting plates (3), an installation bottom plate (5) is arranged at the lower side of the first smooth platform (1), the left end and the right end of the installation bottom plate (5) are respectively fixedly connected with the lateral ends of the lateral supporting plates (3), a hydraulic cylinder (4) is fixedly connected at the center of the upper end of the installation bottom plate (5), the power output end of the hydraulic cylinder (4) is fixedly connected with the lower end of the second smooth platform (2), a plurality of filling columns (6) are fixedly connected with the upper end of the second smooth platform (2), a plurality of the filling columns (6) are uniformly distributed on the second smooth platform (2), and a plurality of force eliminating holes (7) matched with the filling columns (6) are drilled on the first smooth platform (1).
2. A plastic injection molding production process according to claim 1, characterized in that: the height of the packed column (6) is consistent with the depth of the force eliminating hole (7).
3. The plastic injection molding production process according to claim 1, wherein: the diameter of the packed column (6) is smaller than the aperture of the force eliminating hole (7) by 0.2-0.5 mm.
4. A plastic injection molding production process according to claim 1, characterized in that: the upper surfaces of the first smooth platform (1) and the packed column (6) are both polished.
5. A plastic injection molding production process according to claim 1, characterized in that: it is a pair of all dig a pair of vertical chute (8) on the terminal surface that collateral branch fagging (3) are close to each other, smooth platform of second (2) is controlled the equal fixedly connected with in both ends and is a pair of slider (9), slider (9) and vertical chute (8) sliding connection.
6. A plastic injection molding production process according to claim 1, characterized in that: the first smooth platform (1), the second smooth platform (2) and the filling column (6) are all made of microcrystalline glass.
7. The plastic injection molding production process according to claim 1, wherein: the second smooth platform (2) and the filling column (6) are integrally formed.
8. A plastic injection molding production process according to claim 1, characterized in that: in the step 1, when the liquid is added, the liquid level of the surface of the first smooth platform (1) is ensured to be on the same horizontal plane.
9. A plastic injection molding production process according to claim 1, characterized in that: in the step 6, when the plastic flat plate is cooled and shaped, the hydraulic cylinder (4) is started, the power output end of the hydraulic cylinder (4) drives the second smooth platform (2) to move downwards, so that the filling column (6) is separated from the force eliminating hole (7), and at the moment, the plastic flat plate can be separated from the first smooth platform (1) and picked up.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210584031.0A CN114953375A (en) | 2022-05-26 | 2022-05-26 | Plastic injection molding production process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210584031.0A CN114953375A (en) | 2022-05-26 | 2022-05-26 | Plastic injection molding production process |
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| CN114953375A true CN114953375A (en) | 2022-08-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112848038A (en) * | 2021-01-20 | 2021-05-28 | 银川网曌科技有限公司 | Plastic injection molding production process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112848038A (en) * | 2021-01-20 | 2021-05-28 | 银川网曌科技有限公司 | Plastic injection molding production process |
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