CN113021797A - Quick demoulding device of gas cap for injection mold production - Google Patents
Quick demoulding device of gas cap for injection mold production Download PDFInfo
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- CN113021797A CN113021797A CN202110457755.4A CN202110457755A CN113021797A CN 113021797 A CN113021797 A CN 113021797A CN 202110457755 A CN202110457755 A CN 202110457755A CN 113021797 A CN113021797 A CN 113021797A
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- air
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- injection
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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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/43—Removing or ejecting moulded articles using fluid under pressure
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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
- B29C45/73—Heating or cooling of the mould
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a gas cap quick demoulding device for injection mould production, and relates to the technical field of injection moulds. The invention comprises a fixed die fixing plate, a movable die fixing plate, a fixed die base, a movable die base, an upper die core, a lower die core and a pneumatic jacking device. According to the invention, aiming at the problems of difficult demoulding and high defective product rate between the existing deep cavity product and an injection mould, the air jacking device consisting of the first ejector plate, the first air pipe, the first motor, the air transfer box, the second air pipe, the third air pipe and the air pump is arranged, after injection moulding, the air pump starts to convey air to the first air pipe, the first motor drives the first air pipe to rotate, so that the first rotating rod slides in the first sliding groove, and the air blows to the side wall of the deep cavity product from the first air conveying hole; so that the contact surface of the deep cavity product and the side part of the lower die core is loosened; the first ejection plate rotates along with the first ejection plate, so that the top contact surface of the deep cavity product and the lower die core is loosened, and the demolding efficiency of the deep cavity product is improved.
Description
Technical Field
The invention belongs to the technical field of injection molds, and particularly relates to a gas cap quick demoulding device for injection mold production.
Background
Injection molding is a common method for producing injection products, and specifically, a material melted by heating is injected into a mold cavity from high pressure, and a formed product is obtained after cooling and solidification. In the process of injection molding, in order to make the product smoothly fall off from the mold cavity after the product is molded, an ejection mechanism is usually adopted to push the product out. Among injection molded products, container products such as tubs, boxes, cases, etc., in which a wall case is closed, have a bottom, and the cavity depth dimension is more than five times the wall thickness dimension, are called deep cavity products, such as battery cases; the wrapping force between the product and the mold core is large, and the deep cavity product is difficult to demould due to the action of adhesion and negative pressure; for demolding of deep-cavity products, a method of combining an ejector rod and an air cap is usually adopted to eject the products.
The air-lift is that an air pin is arranged at the position of a mold core of a mold, before a product is ejected by an ejector rod, a deep cavity product is blown by compressed air to be firstly separated from the surface of the mold, and then the product is ejected completely by the ejector rod.
In practical application, when the existing air pin is applied to deep cavity product demoulding, the product is tightly attached to the upper surface of the air pin and props against the air pin, the air pin is difficult to open outwards, the air pin is easy to rush out of a core due to increased air pressure, a product is damaged, even a mould and an operator are injured, the product is easy to top white, burst or top deform, the spraying amount of the demoulding agent has to be increased on a mould cavity, or the top white point of the product is eliminated by hot air through electric hot air blowing, so that the working intensity is high, the efficiency is low, the defective rate is high, and the comprehensive cost is high.
Disclosure of Invention
The invention aims to provide a gas cap quick demoulding device for injection mould production, which solves the problems of difficult demoulding and high defective rate of the existing deep cavity products, such as a storage battery shell and an injection mould, by arranging a gas cap device consisting of a first ejection plate, a first gas pipe, a first motor, a gas transfer box, a second gas pipe, a third gas pipe and an air pump.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a gas cap rapid demoulding device for injection mould production, which comprises a fixed die fixed plate, a movable die fixed plate, a fixed die holder, a movable die holder, an upper die core, a lower die core and a gas cap device, wherein the fixed die fixed plate is fixed on the fixed die; the bottom of the fixed die holder is fixedly provided with a die leg; the die feet are fixedly arranged on the fixed die fixing plate; a lower die core is fixedly arranged in the middle of the upper surface of the fixed die holder; the upper surface of the lower die core is provided with a plurality of first grooves; the movable mold base is fixed on the movable mold fixing plate; an upper die core is fixedly arranged in the middle of the lower surface of the movable die holder; the upper die core is matched with the lower die core; a first cavity is formed inside the upper die core and the lower die core when the upper die core and the lower die core are matched; the first cavity is a mold cavity for injection molding; the gas cap device comprises a first ejection plate, a first gas pipe, a first motor, a gas transfer box, a second gas pipe, a third gas pipe and a gas pump; the first gas conveying pipe is vertically arranged between two adjacent first grooves; the upper end of the first gas transmission pipe is provided with a first ejection plate; the first gas transmission pipe is provided with a plurality of first rotating rods from bottom to top; the first gas transmission pipe is provided with a plurality of first gas transmission holes; the first air delivery hole is flush with the first rotating rod; the lower end of the first gas transmission pipe is fixedly provided with a driven gear; a driving gear is fixedly arranged on an output shaft of the first motor; the driving gear is connected with the driven gear through a conveying belt; the bottom of the first gas pipe is provided with a connector; the connector is connected with the gas transfer box through a second gas pipe; the gas transfer box is connected with the gas pump through a third gas pipe.
Furthermore, a water injection channel is formed in the movable die holder; a water inlet is formed in one side face of the movable die holder; and a water outlet is formed in the other side surface of the movable die holder.
Furthermore, a first sliding groove is formed in the fixed die holder; the first sliding groove is matched with the first rotating rod.
Furthermore, two ends of the upper surface of the fixed die holder are provided with first guide connection holes; two ends of the lower surface of the movable die holder are fixedly provided with first guide connecting columns; the first guide connecting column is in inserting fit with the first guide connecting hole.
Furthermore, the number of the first rotating rod and the number of the first air transmission holes are 3-5.
Furthermore, a pouring gate is arranged in the middle of the upper surface of the movable mold fixing plate; and the movable mold fixing plate, the movable mold base and the upper mold core are internally provided with a glue injection runner communicated with the sprue and the mold cavity.
Further, the second air delivery pipe is a rubber hose.
Further, the first ejection plate is connected with the first gas conveying pipe through a first threaded rod.
The invention has the following beneficial effects:
1. the invention aims at the problems of difficult demoulding and higher defective product rate between the existing deep cavity product and an injection mould, and is provided with an air jacking device consisting of a first ejector plate, a first air conveying pipe, a first motor, an air transfer box, a second air conveying pipe, a third air conveying pipe and an air pump; so that the contact surface of the deep cavity product and the side part of the lower die core is loosened; when the first gas transmission pipe rotates, the first ejection plate rotates along with the first gas transmission pipe, so that the contact surface of the deep cavity product and the top of the lower die core is loosened, and the demolding efficiency of the deep cavity product is improved.
2. According to the invention, the water injection channel is arranged in the movable mold base, and when molten plastic is injected into the mold cavity, cold water is injected into the water injection channel, so that the cooling molding of the molten plastic is accelerated, and the production efficiency of the injection mold is improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings 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 that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a gas cap quick demoulding device for injection mould production according to the present invention;
FIG. 2 is a schematic view of the structure of the first air delivery pipe of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-a fixed die fixing plate, 2-a movable die fixing plate, 3-a fixed die base, 4-a movable die base, 5-an upper die core, 6-a lower die core, 7-a glue injection runner, 8-a sprue, 9-a die cavity, 10-a water injection channel, 11-a water inlet, 12-a water outlet, 13-a first guide connecting column, 14-a die foot, 15-a first motor, 16-a driving gear, 17-a gas transfer box, 18-a second gas pipe, 19-a third gas pipe, 20-a gas pump, 21-a driven gear, 22-a first gas pipe, 23-a first rotating rod, 24-a first gas transmission hole, 25-a connector, 26-a first ejection plate and 27-a first threaded rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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.
In the description of the present invention, it is to be understood that the terms "bottom", "intermediate", "upper", "top", "lower", "upper end", and the like are used for indicating an orientation or positional relationship, which is merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-2, the invention relates to a gas cap quick demoulding device for injection mould production, which comprises a fixed mould fixing plate 1, a movable mould fixing plate 2, a fixed mould base 3, a movable mould base 4, an upper mould core 5, a lower mould core 6 and a gas cap device; the bottom of the fixed die holder 3 is fixedly provided with a die leg 14; the mould feet 14 are fixedly arranged on the fixed mould fixing plate 1; a lower die core 6 is fixedly arranged in the middle of the upper surface of the fixed die holder 3; the upper surface of the lower die core 6 is provided with a plurality of first grooves; the movable die holder 4 is fixed on the movable die fixing plate 2; an upper die core 5 is fixedly arranged in the middle of the lower surface of the movable die holder 4; the upper die core 5 is matched with the lower die core 6; a first cavity is formed inside the upper die core 5 and the lower die core 6 when the upper die core and the lower die core are matched; the first cavity is a mold cavity 9 for injection molding; the gas cap device comprises a first ejection plate 26, a first gas pipe 22, a first motor 15, a gas transfer box 17, a second gas pipe 18, a third gas pipe 19 and a gas pump 20; the first air conveying pipe 22 is vertically arranged between two adjacent first grooves; the upper end of the first air delivery pipe 22 is provided with a first ejector plate 26; the first air delivery pipe 22 is provided with a plurality of first rotating rods 23 from bottom to top; the first air delivery pipe 22 is provided with a plurality of first air delivery holes 24; the first air delivery hole 24 is flush with the first rotating rod 23; the lower end of the first gas pipe 22 is fixedly provided with a driven gear 21; a driving gear 16 is fixedly arranged on an output shaft of the first motor 15; the driving gear 16 is connected with the driven gear 21 through a conveyor belt; the bottom of the first air pipe 22 is provided with a connector 25; the connector 25 is connected with the gas transit box 17 through a second gas pipe 18; the air transfer box 17 is connected with the air pump 20 through a third air pipe 19; a water injection channel 10 is arranged in the movable die holder 4; a water inlet 11 is arranged on one side surface of the movable die holder 4; the other side surface of the movable die holder 4 is provided with a water outlet 12; a first sliding groove is formed in the fixed die holder 3; the first chute is matched with the first rotating rod 23; two ends of the upper surface of the fixed die holder 3 are provided with first guide connection holes; two ends of the lower surface of the movable die holder 4 are fixedly provided with first guide posts 13; the first lead-connecting column 13 is in plug fit with the first lead-connecting hole; the number of the first rotating rods 23 and the number of the first air transmission holes 24 are 3-5; a pouring gate 8 is arranged in the middle of the upper surface of the movable mold fixing plate 2; a glue injection runner 7 communicated with a pouring gate 8 and a mould cavity 9 is arranged in the movable mould fixing plate 2, the movable mould seat 4 and the upper mould core 5; the second air delivery pipe 18 is a rubber hose; the first ejector plate 26 is connected with the first air pipe 22 through a first threaded rod 27.
One specific application of this embodiment is:
firstly, injecting molten plastic into a pouring gate 8, wherein the molten plastic flows into a mold cavity 9 from a glue injection runner 7, and then, injecting cold water into a water injection channel 10 of a movable mold base 4, wherein the cold water enters from a water inlet 11 and flows out from a water outlet 12 to take heat out;
after the product is completely cooled and formed, the mold is opened, the upper mold core 5 is separated from the lower mold core 6, the first motor 15 is started, the driving gear 16 on the output shaft of the first motor 15 drives the conveyor belt to transmit, the first air conveying pipe 22 rotates along with the first air conveying pipe, the first rotating rod 23 slides along the first sliding groove, after the first rotating rod 23 rotates 90 degrees, the first air conveying hole 24 moves to the position of the original first rotating rod 23, the air pump 20 is started, air is sprayed to the side contact surface of the product and the lower mold core 6 from the third air conveying pipe 19, the air transfer box 17, the second air conveying pipe 18 and the first air conveying pipe 22, and finally the first air conveying hole 24 is sprayed to the side contact surface of the product and the lower mold core 6 to enable the product to be loosened; the contact surface of the top of the product and the lower mold core 6 is loosened, so that the product is easy to demould, the production efficiency is improved, and the defective rate is reduced.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a gas cap quick demoulding device for injection mold production which characterized in that: comprises that
The fixed die comprises a fixed die fixing plate (1) and a fixed die holder (3), wherein a die pin (14) is fixedly arranged at the bottom of the fixed die holder (3); the die feet (14) are fixedly arranged on the fixed die fixing plate (1); a lower die core (6) is fixedly arranged in the middle of the upper surface of the fixed die holder (3); the upper surface of the lower die core (6) is provided with a plurality of first grooves;
the movable mould fixing plate (2) and the movable mould base (4), wherein the movable mould base (4) is fixed on the movable mould fixing plate (2); an upper die core (5) is fixedly arranged in the middle of the lower surface of the movable die holder (4); the upper die core (5) is matched with the lower die core (6); a first cavity is formed inside the upper die core (5) and the lower die core (6) when the upper die core and the lower die core are matched; the first cavity is a mould cavity (9) for injection moulding;
the pneumatic jacking device comprises a first jacking plate (26), a first air conveying pipe (22), a first motor (15), an air transfer box (17), a second air conveying pipe (18), a third air conveying pipe (19) and an air pump (20); the first air conveying pipe (22) is vertically arranged between two adjacent first grooves; a first ejector plate (26) is arranged at the upper end of the first air conveying pipe (22);
the first air delivery pipe (22) is provided with a plurality of first rotating rods (23) from bottom to top; a plurality of first air transmission holes (24) are formed in the first air transmission pipe (22); the first air delivery hole (24) is flush with the first rotating rod (23); a driven gear (21) is fixedly arranged at the lower end of the first gas transmission pipe (22); a driving gear (16) is fixedly arranged on an output shaft of the first motor (15);
the driving gear (16) is connected with the driven gear (21) through a conveyor belt; the bottom of the first air conveying pipe (22) is provided with a connector (25); the connector (25) is connected with the gas transit box (17) through a second gas pipe (18); the air transfer box (17) is connected with the air pump (20) through a third air conveying pipe (19).
2. The air cap quick demoulding device for the injection mould production as recited in claim 1, wherein the movable mould base (4) is internally provided with a water injection channel (10); a water inlet (11) is formed in one side face of the movable die holder (4); and a water outlet (12) is formed in the other side surface of the movable die holder (4).
3. The air cap quick demoulding device for the injection mould production according to the claim 1 or 2, characterized in that the fixed mould seat (3) is internally provided with a first sliding groove; the first sliding groove is matched with the first rotating rod (23).
4. The air cap quick demoulding device for the injection mould production as claimed in claim 3, wherein the fixed mould base (3) is provided with first guide connection holes at two ends of the upper surface; two ends of the lower surface of the movable die holder (4) are fixedly provided with first guide connecting columns (13); the first guide connecting column (13) is in inserting fit with the first guide connecting hole.
5. An air cap rapid demoulding device for the production of injection moulds according to the claim 1, 2 or 4, characterized in that the number of the first rotating rod (23) and the first air delivery hole (24) is 3-5.
6. The device for quickly demoulding the air cap for the injection mould production according to the claim 5, characterized in that the middle position of the upper surface of the movable mould fixing plate (2) is provided with a pouring gate (8); and a glue injection runner (7) communicated with the sprue (8) and the mold cavity (9) is arranged in the movable mold fixing plate (2), the movable mold seat (4) and the upper mold core (5).
7. The device for quickly demoulding by using the air cap for the production of the injection mould as claimed in claim 1, 2, 4 or 6, wherein the second air delivery pipe (18) is a rubber hose.
8. The quick demoulding device for the air cap used in the production of the injection mould as claimed in claim 7, wherein the first ejector plate (26) is connected with the first air delivery pipe (22) through a first threaded rod (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110457755.4A CN113021797B (en) | 2021-04-27 | 2021-04-27 | Quick demoulding device of gas cap for injection mold production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110457755.4A CN113021797B (en) | 2021-04-27 | 2021-04-27 | Quick demoulding device of gas cap for injection mold production |
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| CN113021797A true CN113021797A (en) | 2021-06-25 |
| CN113021797B CN113021797B (en) | 2022-05-10 |
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| CN202110457755.4A Active CN113021797B (en) | 2021-04-27 | 2021-04-27 | Quick demoulding device of gas cap for injection mold production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193742A (en) * | 2021-12-14 | 2022-03-18 | 张震 | Plastic bottle blow molding processing system and molding processing method |
| CN116394474A (en) * | 2023-05-06 | 2023-07-07 | 无锡万华机械有限公司 | Mould is used in production of car central channel processing |
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| JP2009160799A (en) * | 2007-12-30 | 2009-07-23 | Daisan:Kk | Thin walled solid molded article and its mold assembly |
| CN103817883A (en) * | 2012-11-17 | 2014-05-28 | 陈海央 | Compressed air demoulding device for thin-walled deep-cavity mould |
| CN107116764A (en) * | 2017-06-20 | 2017-09-01 | 宁波跃飞模具有限公司 | A kind of pneumatic jack core bar device of injection mold pneumatic jack assisted demoulding |
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| CN110355960A (en) * | 2019-06-28 | 2019-10-22 | 金华市利盛塑模有限公司 | A kind of block insert type demoulding mechanism |
| CN110355961A (en) * | 2019-06-28 | 2019-10-22 | 金华市利盛塑模有限公司 | A kind of side-blown demoulding mechanism of pin plug |
| CN211137940U (en) * | 2019-09-19 | 2020-07-31 | 诺伊环保设备制造（北京）有限公司 | Ejection mechanism of injection mold |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0385762A2 (en) * | 1989-02-28 | 1990-09-05 | Citizen Watch Co., Ltd. | Injection molding apparatus |
| JPH09109214A (en) * | 1995-10-18 | 1997-04-28 | Sekisui Chem Co Ltd | Injection mold and manufacture of injection molding |
| JP2009160799A (en) * | 2007-12-30 | 2009-07-23 | Daisan:Kk | Thin walled solid molded article and its mold assembly |
| CN103817883A (en) * | 2012-11-17 | 2014-05-28 | 陈海央 | Compressed air demoulding device for thin-walled deep-cavity mould |
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| CN108189331A (en) * | 2018-04-01 | 2018-06-22 | 漳州市龙文区仁信工业设计有限公司 | A kind of mandril carries the deep chamber injection mold of pneumatic jacking-up device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193742A (en) * | 2021-12-14 | 2022-03-18 | 张震 | Plastic bottle blow molding processing system and molding processing method |
| CN114193742B (en) * | 2021-12-14 | 2023-11-24 | 紫阳县锄禾实业发展有限公司 | Plastic bottle blow molding processing system and molding processing method |
| CN116394474A (en) * | 2023-05-06 | 2023-07-07 | 无锡万华机械有限公司 | Mould is used in production of car central channel processing |
| CN116394474B (en) * | 2023-05-06 | 2023-11-24 | 无锡万华机械有限公司 | Mould is used in production of car central channel processing |
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| Publication number | Publication date |
|---|---|
| CN113021797B (en) | 2022-05-10 |
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