CN109366910B - Auxiliary ejection device for mold and working method thereof - Google Patents
Auxiliary ejection device for mold and working method thereof Download PDFInfo
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- CN109366910B CN109366910B CN201811450713.2A CN201811450713A CN109366910B CN 109366910 B CN109366910 B CN 109366910B CN 201811450713 A CN201811450713 A CN 201811450713A CN 109366910 B CN109366910 B CN 109366910B
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- plate
- ejection device
- pressure
- ejector rod
- plastic part
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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
Abstract
The invention discloses a mold auxiliary ejection device and a working method thereof, and mainly solves the problems that in the prior art, a mold stripping mode adopted by the mold auxiliary ejection device often causes deformation or damage of a plastic part due to overlarge ejection stress, so that the quality of the plastic part is reduced, and further processing and use are affected. The invention relates to an auxiliary ejection device, which comprises: the upper surface of the connecting plate comprises a first auxiliary ejection device and a second auxiliary ejection device which are used for primary demolding when the injection mold is demolded; the first auxiliary ejection device is connected to the upper surface of the connecting plate through a placing plate, and the placing plate is provided with a second ejection rod in a penetrating way. The problem existing in the prior art is solved, the molded plastic part can be simultaneously demolded from 4 corners, deformation or damage of the molded plastic part is reduced, the quality of the molded plastic part is improved, and the molded plastic part has good popularization and utilization values.
Description
Technical Field
The invention relates to the field of injection molds, in particular to an auxiliary ejection device of a mold and a working method thereof.
Background
The existing injection mold can realize complete demolding only by carrying out secondary ejection through the mold auxiliary ejection device when a molded plastic part is demolded, because the problem that the molded plastic part is difficult to completely demold or the molded plastic part freely falls only after one ejection action is completed, the demolding mode adopted by the mold auxiliary ejection device in the prior art often causes the problem that the molded plastic part is deformed or damaged due to overlarge ejection stress, and further the quality of the molded plastic part is reduced, so that further use is influenced.
Disclosure of Invention
The invention aims to provide a mold-assisted ejection device which can solve the problem that in the prior art, a molded plastic part is deformed or damaged due to overlarge ejection stress in a demolding mode, so that the quality of the plastic part is reduced, and further processing and use are affected.
The second objective of the present invention is to provide a working method based on an auxiliary ejection device.
In order to achieve one of the above objects, the present invention adopts the following technical scheme:
a mold assisted ejection device comprising:
a die fixing seat 10, a lower die seat 90 is welded below;
a connecting plate 60 including a first auxiliary ejection device 20 and a second auxiliary ejection device 30, wherein the connecting plate 60 is disposed above the mold fixing base 10;
the first auxiliary ejection device 20 is connected to the upper surface of the connection plate 60 through a placement plate 207, and the placement plate 207 is provided with a second ejection rod 210;
and a cylinder 40 provided at upper ends of the first auxiliary ejection device 20 and the second auxiliary ejection device 30.
By adopting the technical means, when the injection mold is used for primary demolding of the molded plastic part, the molded plastic part is simultaneously demolded from 4 corners, so that the molded plastic part can be effectively prevented from being deformed or damaged due to overlarge ejection stress once, the quality of the molded plastic part is further reduced, the further use is influenced, and the molded plastic part is favorably ejected and demolded finally.
According to one embodiment of the present invention, the first auxiliary ejection device 20 and the second auxiliary ejection device 30 have the same shape and structure; the placement plate 207 is linked to the upper surface of the mold fixing base 10 by screws passing through the circular holes of the connection plate 60 and the circular holes of the placement plate 207. By adopting the technical means, when the first auxiliary ejection device 20 acts, the second auxiliary ejection device 30 also acts simultaneously, so that the effective demolding of preventing corners of the plastic part 4 is effectively realized, the damage to the plastic part is further effectively reduced, and the quantity of molded plastic parts can be further improved.
According to one embodiment of the present invention, the outer side end of the placement plate 207 includes 2 symmetrically disposed rectangular columns, a pressure lever 204 is disposed in the middle of the columns, and the pressure lever 204 is connected to the columns through a circular shaft; a circular hole is formed above the upright post; a circular hole is provided in the middle of the placement plate 207, and a second ejector rod 210 is provided inside the placement plate 207. By adopting the technical means, the placing plate 207 is provided with 2 cuboid stand columns which are symmetrically arranged, the pressure lever 204 is connected with the stand columns through the round shaft, so that the pressure lever 204 can act freely, the demolding accuracy of a molded plastic part is further ensured, the quality of the molded plastic part is further ensured, and the molded plastic part is further used and processed.
According to one embodiment of the present invention, a first pressure shaft 208 is disposed at a lower right side of the pressure lever 204, and an outer circumference of the first pressure shaft 208 is attached to an upper surface of the second ejector rod 210; the other end of the pressure lever 204 is connected with a pressure rotating block 205 through a rotating shaft penetrating through a circular hole, and a rectangular groove is formed in the middle of the pressure rotating block 205. By adopting the technical means, one end of the pressure lever 204 is attached to the upper surface of the second ejector rod 210, and the other end of the pressure lever 204 is movably connected with the pressure rotating block 205, so that the bidirectional movement of the pressure lever 204 is realized only through one end, namely the movement of the cylinder 40 at one connecting end of the pressure lever 204, the effective demolding of the molded plastic part 4 corner prevention is effectively realized, the damage to the molded plastic part is further effectively reduced, and the quantity of the molded plastic parts can be further improved.
According to one embodiment of the present invention, a support plate 206 is disposed above the pressure rotating block 205, the support plate 206 is fixed by a first fixing plate 201 and a second fixing plate 202, the first fixing plate 201 and the second fixing plate 202 are vertically fixed on the upper surface of the connecting plate 60, and a cylinder 40 is disposed above the support plate 206; a second pressure shaft 209 is also arranged below the other end of the pressure lever 204; a first ejector rod 203 is arranged between the first fixing plate 201 and the second fixing plate 202, and the upper surface of the first ejector rod 203 is attached to the outer periphery of the second pressure shaft 209; the lower bottom ends of the first ejector rod 203 and the second ejector rod 210 bear against the upper surface of the molded plastic part 80. By adopting the technical scheme, the cylinder 40 is started to press downwards, so that the cylinder 40 applies downward pressure to the pressure rotating block 205 through the circular shaft, and the pressure lever 204 is pushed to move downwards; subsequently, the second pressure shaft 209 and the first pressure shaft 208 apply downward pressure to the first ejector rod 203 and the second ejector rod 210, respectively, and the first ejector rod 203 and the second ejector rod 210 are forced to move downward, so that the first demolding of the molded plastic part is realized.
According to one embodiment of the present invention, the die holder 10 includes a buffer device 70 inside, and a circular hole is provided inside the die holder 10. By adopting the technical means, the buffer device 70 is arranged in the die fixing seat 10, and the buffer device 70 can effectively reduce the stress of the second ejector rod 210 on the plastic part, so that the deformation and damage of the plastic part can be effectively prevented, and the quality of the plastic part is further improved.
According to one embodiment of the present invention, the buffer device 70 includes an upper placing cover 701, the upper placing cover 701 is installed above a large circular hole inside the mold fixing base 10, and a lower placing cover 704 is disposed below the large circular hole inside the mold fixing base 10.
According to an embodiment of the present invention, an elastic member 702 is provided in the middle of the upper placing cover 701 and the lower placing cover 704, and the elastic member 702 is provided at the outer circumference of the second ejector rod 210; the upper outer periphery of the second ejector rod 210 is provided with a convex circular edge, and the circular edge is attached to the upper surface of the upper placement cover 701. By adopting the technical means, the elastic piece 702 has certain elasticity and is used for buffering the stress of the second ejector rod 210 on the plastic piece, so that the deformation and damage of the plastic piece can be effectively prevented, and the quality of the plastic piece is further improved.
According to an embodiment of the present invention, a dust cover 703 is further disposed on the outer periphery of the second ejector rod 210, and the dust cover 703 is soft; the lower surface of mould fixing base 10 is provided with the recess that is used for placing anti-rotation board 705, second ejector rod 210 below is provided with the rectangular channel, the left surface laminating of anti-rotation board 705 the rectangular channel surface of second ejector rod 210 below has overcome current supplementary ejecting device and can appear easily rotating when the drawing of patterns, and the finished piece holds up unstable problem, and then has guaranteed the surface quality of moulding.
In order to achieve the second purpose, the invention adopts the following technical scheme:
the working method of the auxiliary ejection device based on the scheme one comprises the following steps:
(a) Activating the cylinder 40, so that the cylinder 40 applies downward pressure, and further applies downward pressure to the pressure rotating block 205 through the circular shaft, thereby pushing the pressure lever 204 to move downward;
(b) Subsequently, the second pressure shaft 209 and the first pressure shaft 208 simultaneously apply downward pressure to the first ejector rod 203 and the second ejector rod 210 under the action of the pressure lever 204, respectively, and the first ejector rod 203 and the second ejector rod 210 are forced to act downward, so as to apply downward force to the molded plastic part 80, thereby performing primary demolding on the molded plastic part 80.
According to an embodiment of the present invention, further, when the first auxiliary ejection device 20 is operated, the second auxiliary ejection device 30 is also operated simultaneously, that is, the two first ejection rods 203 and the two second ejection rods 210 simultaneously apply downward forces to the molded plastic part 80, so as to eject the molded plastic part 80 from the lower mold base 90, thereby performing initial demolding of the molded plastic part 80.
According to an embodiment of the present invention, further, when the first auxiliary ejection device 20 and the second auxiliary ejection device 30 perform the ejection action on the plastic part, the anti-rotation plate 705 is attached to the surface of the rectangular groove of the second ejector rod 210.
The beneficial effects are that:
in the technical scheme, the mould auxiliary ejection device is characterized in that a mould is adopted for placing the shell; a connecting plate is arranged above the die placing shell and comprises a first auxiliary ejection device and a second auxiliary ejection device; the first auxiliary ejection device is connected to the upper surface of the connecting plate through a placing plate, and the placing plate is provided with a second ejection rod in a penetrating way; the upper ends of the first auxiliary ejection device and the second auxiliary ejection device are provided with the air cylinder, and when the injection mold is used for primary demolding of molded plastic parts, the molded plastic parts 80 can be simultaneously demolded from 4 corners, so that the problem that the demolding mode adopted by the mold auxiliary ejection device in the prior art often causes deformation or damage of the molded plastic parts due to overlarge ejection stress, further the quality of the molded plastic parts is reduced, the further use is influenced is solved, the quality of molded plastic parts is improved, and the final ejection demolding of the molded plastic parts is facilitated.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic overall structure of an auxiliary ejection device according to the present invention.
Fig. 2 is an overall side view of the auxiliary ejection device of the present invention.
Fig. 3 is a schematic view of a part of the structure of the auxiliary ejection device of the present invention.
Fig. 4 is a schematic view of a part of the structure of the auxiliary ejection device in another direction.
Fig. 5 is a schematic structural view of a first auxiliary ejection device according to the present invention.
Fig. 6 is a schematic view illustrating an internal structure of a first auxiliary ejection device according to the present invention.
Fig. 7 is a schematic view of a partial structure at a in fig. 6.
Fig. 8 is a schematic diagram illustrating a disassembly structure of the auxiliary ejection device according to the present invention.
Fig. 9 is a partial cross-sectional view of an auxiliary ejection device of the present invention.
Fig. 10 is a schematic view illustrating an operation of the auxiliary ejection device according to the present invention.
In the accompanying drawings:
10. die fixing base 20, first auxiliary ejection device 201 and first fixing plate
202. Second fixing plate 203, first ejector rod 204, and pressure lever
205. Pressure rotating block 206, support plate 207, and placing plate
208. First pressure shaft 209, second pressure shaft 210, second ejector rod
30. Second auxiliary ejection device 40, cylinder 50, and ejection device
60. Connection plate 70, buffer 701, upper placement cover
702. Elastic member 703, dust cover 704, lower placement cover
705. Anti-rotation plate 80, molding plastic part 90 and lower die seat
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention will be described in further detail with reference to the examples. It should be understood that the detailed description and specific examples, while indicating the embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Embodiment one:
as shown in fig. 1, 2, 3, 4, 9, an auxiliary ejection device includes: the injection mold comprises a mold fixing seat 10, a lower mold seat 90 is welded below the mold fixing seat 10, a connecting plate 60 is arranged above the mold fixing seat 10, and the upper surface of the connecting plate 60 comprises a first auxiliary ejection device 20 and a second auxiliary ejection device 30, and is used for primary demolding when an injection mold is demolded; the first auxiliary ejection device 20 is connected to the upper surface of the connection plate 60 by a placement plate 207, and the placement plate 207 is provided with a second ejection rod 210 therethrough. According to the auxiliary ejection device, when the molded plastic part of the injection mold is subjected to primary ejection, the molded plastic part is simultaneously ejected from 4 corners, so that the deformation or damage of the molded plastic part caused by overlarge ejection stress at one time can be effectively prevented, the quality of the molded plastic part is further reduced, the problem of further use is affected, and the final ejection and ejection of the molded plastic part are facilitated.
The first auxiliary ejection device 20 and the second auxiliary ejection device 30 have the same shape and structure, and the upper ends of the first auxiliary ejection device 20 and the second auxiliary ejection device 30 are respectively provided with a cylinder 40 for driving the ejection devices. The placement plate 207 is linked to the upper surface of the mold fixing base 10 by screws passing through the circular holes of the connection plate 60 and the circular holes of the placement plate 207.
The outer side end of the placing plate 207 comprises 2 cuboid stand columns which are symmetrically arranged, a pressure lever 204 is arranged in the middle of each stand column, and the pressure lever 204 is connected with the stand column through a circular shaft; a circular hole is provided above the upright for a screw to pass through to fix the placement plate 207; a circular hole is formed in the middle of the placing plate 207, and a second ejection rod 210 penetrates through the placing plate 207; a first pressure shaft 208 is arranged at the lower right of the pressure lever 204, and the outer periphery of the first pressure shaft 208 is attached to the upper surface of the second ejector rod 210; the other end of the pressure lever 204 is connected with a pressure rotating block 205 through a rotating shaft penetrating through a circular hole, a rectangular groove is formed in the middle of the pressure rotating block 205 and used for installing the other end of the pressure lever 204, a supporting plate 206 is arranged above the pressure rotating block 205, the supporting plate 206 is fixed through a first fixing plate 201 and a second fixing plate 202, the first fixing plate 201 and the second fixing plate 202 are vertically fixed on the upper surface of the connecting plate 60, and an air cylinder 40 is arranged above the supporting plate 206.
A second pressure shaft 209 is also arranged below the other end of the pressure lever 204; the middle of the first fixing plate 201 and the second fixing plate 202 is provided with a first ejector rod 203, the upper surface of the first ejector rod 203 is attached to the outer periphery of the second pressure shaft 209, and the lower bottom ends of the first ejector rod 203 and the second ejector rod 210 are propped against the upper surface of the molded plastic 80.
When the injection molding is required to be demolded, the air cylinder 40 is started, so that the air cylinder 40 acts to press downwards, and then downward pressure is applied to the pressure rotating block 205 through the circular shaft, so that the pressure lever 204 is pushed to move downwards; subsequently, the second pressure shaft 209 and the first pressure shaft 208 apply downward pressure to the first ejector rod 203 and the second ejector rod 210, respectively, and the first ejector rod 203 and the second ejector rod 210 are forced to move downward, that is, the two first ejector rods 203 and the two second ejector rods 210 apply downward force to the molded plastic part 80 simultaneously, so that the molded plastic part 80 is ejected from the mold, and thus the molded plastic part 80 is first demolded. The auxiliary ejection device and the demolding mode are adopted to carry out demolding on the molded plastic part, so that the problem that the molded plastic part is deformed or damaged due to overlarge stress caused by one-time ejection is solved; when the first auxiliary ejection device 20 acts, the second auxiliary ejection device 30 also acts simultaneously, so that the 4-corner-preventing effective demolding of the molded plastic part 80 is realized, and the damage to the molded plastic part 80 is further effectively reduced.
As shown in fig. 5, 6, 7, 8, 9 and 10, the inside of the die holder 10 includes a buffer device 70, and a circular hole is provided in the inside of the die holder 10; the buffer device 70 comprises an upper placing cover 701, the upper placing cover 701 is installed above a large circular hole in the die fixing base 10, and a lower placing cover 704 is arranged below the large circular hole in the die fixing base 10.
An elastic member 702 is disposed between the upper placing cover 701 and the lower placing cover 704, and the elastic member 702 is disposed at the outer circumference of the second ejector rod 210; a protruding circular edge is provided on the upper periphery of the second ejector rod 210, and the circular edge is attached to the upper surface of the upper placement cover 701; a dust cover 703 is further disposed on the outer periphery of the second ejector rod 210, and the dust cover 703 is disposed in a soft manner; the lower surface of the die fixing seat 10 is provided with a groove for placing the anti-rotation plate 705, a rectangular groove is arranged below the second ejector rod 210, and the left surface of the anti-rotation plate 705 is attached to the surface of the rectangular groove below the second ejector rod 210.
When the first auxiliary ejection device 20 and the second auxiliary ejection device 30 eject the plastic part, the anti-rotation plate 705 is attached to the surface of the rectangular groove of the second ejection rod 210, so that the rotation of the second ejection rod 210 can be effectively prevented, and the surface quality of the plastic part is ensured. Meanwhile, the buffer device 70 also reduces the stress of the second ejector rod 210 on the plastic part, and can effectively prevent the plastic part from being deformed and damaged; the dust cover 703 on the outer periphery of the second ejector rod 210 is used to reduce the adhesion of impurities such as dust to the second ejector rod 210 during long-term use, and further reduce the problem of poor ejection effect.
According to the invention, when the plastic part is demoulded, twice demould is carried out, 4 corners of the plastic part are demoulded respectively, and the stress is reduced through the buffer device 70 in the process of separating and demoulding the edge of the plastic part, so that the plastic part is prevented from being damaged due to excessive stress; the final demolding is performed by the ejector 50, so that the problem that the plastic part is deformed or damaged due to overlarge stress in one demolding process and the problem that the surface quality defect of the plastic part is caused by the fact that the second ejector rod 210 possibly rotates in the demolding process are effectively solved.
The working method of the auxiliary ejection device according to the first embodiment comprises the following steps:
(a) Activating the cylinder 40, so that the cylinder 40 applies downward pressure, and further applies downward pressure to the pressure rotating block 205 through the circular shaft, thereby pushing the pressure lever 204 to move downward;
(b) Subsequently, the second pressure shaft 209 and the first pressure shaft 208 simultaneously apply downward pressure to the first ejector rod 203 and the second ejector rod 210 under the action of the pressure lever 204, respectively, and the first ejector rod 203 and the second ejector rod 210 are forced to act downward, so as to apply downward force to the molded plastic part 80, thereby performing primary demolding on the molded plastic part 80.
According to an embodiment of the present invention, further, when the first auxiliary ejection device 20 is operated, the second auxiliary ejection device 30 is also operated simultaneously, that is, the two first ejection rods 203 and the two second ejection rods 210 simultaneously apply downward force to the molded plastic part 80, so as to eject the molded plastic part 80 from the lower mold base 90, thereby performing primary demolding on the molded plastic part 80; the rotation of the second ejector rod 210 can be effectively prevented to ensure the surface quality of the molded article.
According to an embodiment of the present invention, further, when the first auxiliary ejection device 20 and the second auxiliary ejection device 30 perform the ejection action on the plastic part, the anti-rotation plate 705 is attached to the surface of the rectangular groove of the second ejector rod 210, so as to overcome the problem that the ejector rod is easy to rotate during the demolding of the existing auxiliary ejection device, and the workpiece is not stably supported.
While the foregoing describes the illustrative embodiments of the present invention so that those skilled in the art may understand the present invention, the present invention is not limited to the specific embodiments, and all inventive innovations utilizing the inventive concepts are herein within the scope of the present invention as defined and defined by the appended claims, as long as the various changes are within the spirit and scope of the present invention.
Claims (6)
1. A mold assisted ejection device comprising:
a die fixing seat (10), the lower part of which is welded with a lower die seat (90);
the connecting plate (60) comprises a first auxiliary ejection device (20) and a second auxiliary ejection device (30), and the connecting plate (60) is fixedly arranged above the die fixing seat (10);
the first auxiliary ejection device (20) is connected to the upper surface of the connecting plate (60) through a placing plate (207), and the placing plate (207) is provided with a second ejection rod (210) in a penetrating way; a kind of electronic device with high-pressure air-conditioning system
A cylinder (40) provided at the upper ends of the first auxiliary ejection device (20) and the second auxiliary ejection device (30);
the outer side end of the placing plate (207) comprises 2 cuboid stand columns which are symmetrically arranged, a pressure lever (204) is arranged in the middle of each stand column, and the pressure lever (204) is connected with the stand column through a round shaft; a circular hole is formed above the upright post;
a circular hole is formed in the middle of the placement plate (207), and a second ejection rod (210) penetrates through the placement plate (207);
the die fixing seat (10) comprises a buffer device (70), and a circular hole is formed in the die fixing seat (10);
a first pressure shaft (208) is arranged at the lower right part of the pressure lever (204), and the periphery of the first pressure shaft (208) is attached to the upper surface of the second ejector rod (210); the other end of the pressure lever (204) is connected with a pressure rotating block (205) through a rotating shaft penetrated by a circular hole, and a rectangular groove is formed in the middle of the pressure rotating block (205);
a supporting plate (206) is arranged above the pressure rotating block (205), the supporting plate (206) is fixed through a first fixing plate (201) and a second fixing plate (202), the first fixing plate (201) and the second fixing plate (202) are vertically fixed on the upper surface of the connecting plate (60), and an air cylinder (40) is arranged above the supporting plate (206);
a second pressure shaft (209) is also arranged below the other end of the pressure lever (204); a first ejector rod (203) is arranged between the first fixing plate (201) and the second fixing plate (202), and the upper surface of the first ejector rod (203) is attached to the periphery of the second pressure shaft (209);
the lower bottom ends of the first ejection rod (203) and the second ejection rod (210) are propped against the upper surface of the molded plastic part (80).
2. A mould-assisted ejection apparatus according to claim 1, wherein the first and second assisted ejection apparatuses (20, 30) are of identical shape configuration;
the placement plate (207) is linked to the upper surface of the mold fixing base (10) by screws passing through the circular holes of the connection plate (60) and the circular holes of the placement plate (207).
3. A mould assisted ejection apparatus as in claim 1, wherein the buffer means (70) comprises an upper placement cap (701), the upper placement cap (701) being mounted over a large circular hole inside the mould holder (10), a lower placement cap (704) being provided under the large circular hole inside the mould holder (10).
4. A mold assisted ejection apparatus according to claim 3, wherein an elastic member (702) is provided in the middle of the upper placing cover (701) and the lower placing cover (704), the elastic member (702) being provided at the outer periphery of the second ejector rod (210);
the periphery above the second ejector rod (210) is provided with a convex round edge, and the round edge is attached to the upper surface of the upper placing cover (701).
5. The mold-assisted ejection device according to claim 1, wherein a dust cover (703) is further provided on the outer periphery of the second ejector rod (210), and the dust cover (703) is provided in a soft manner;
the lower surface of mould fixing base (10) is provided with the recess that is used for placing anti-rotating plate (705), second ejector pin (210) below is provided with the rectangular channel, the left surface laminating of anti-rotating plate (705) the rectangular channel surface of second ejector pin (210) below.
6. A method of operating an auxiliary ejection device according to any one of claims 1 to 5, comprising the steps of:
(a) Activating the air cylinder (40) to enable the air cylinder (40) to downwards press, and further, applying downward pressure to the pressure rotating block (205) through the circular shaft, so as to push the pressure lever (204) to downwards move;
(b) Subsequently, the second pressure shaft (209) and the first pressure shaft (208) respectively and simultaneously apply downward pressure to the first ejector rod (203) and the second ejector rod (210) under the action of the pressure lever (204), and the first ejector rod (203) and the second ejector rod (210) are stressed to act downwards, so that downward force is applied to the molded plastic part (80), and primary demolding is performed on the molded plastic part (80).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811450713.2A CN109366910B (en) | 2018-11-30 | 2018-11-30 | Auxiliary ejection device for mold and working method thereof |
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| CN201811450713.2A CN109366910B (en) | 2018-11-30 | 2018-11-30 | Auxiliary ejection device for mold and working method thereof |
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| CN109366910A CN109366910A (en) | 2019-02-22 |
| CN109366910B true CN109366910B (en) | 2023-09-08 |
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| CN114311556A (en) * | 2022-01-06 | 2022-04-12 | 宁波方正汽车模具股份有限公司 | Injection mold convenient to drawing of patterns |
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| JPH1034713A (en) * | 1996-07-19 | 1998-02-10 | Shoei Seiki Kogyo Kk | Mold release auxiliary equipment for injection molding machine and injection molding machine |
| TWM259696U (en) * | 2004-08-13 | 2005-03-21 | Cheng Uei Prec Ind Co Ltd | Injection mold with accessorial ejecting mechanism |
| CN103481469A (en) * | 2013-09-24 | 2014-01-01 | 凡嘉科技（无锡）有限公司 | Ejection structure for product with deep rib position |
| JP2015142135A (en) * | 2014-01-29 | 2015-08-03 | セメス株式会社Ｓｅｍｅｓ Ｃｏ．， Ｌｔｄ． | Die ejecting device |
| CN203779813U (en) * | 2014-03-31 | 2014-08-20 | 厦门雅信塑胶有限公司 | Mould pitched roof for preventing products from being pulled |
| CN204844743U (en) * | 2015-07-15 | 2015-12-09 | 浙江海燕模具有限公司 | A mould secondary ejecting demoulding mechanism is by force moulded to car |
| CN205219606U (en) * | 2015-11-12 | 2016-05-11 | 天津澳德纳科技有限公司 | Injection mold of modified TV set plastic housing |
| CN105415609A (en) * | 2015-11-29 | 2016-03-23 | 宁波督倍斯德产品技术服务有限公司 | Mechanism assisting in oblique ejection of centre through injection mold |
| CN106881821A (en) * | 2015-12-16 | 2017-06-23 | 重庆昇顺科技有限公司 | A kind of mould |
| CN105856516A (en) * | 2016-03-23 | 2016-08-17 | 浙江台州美多模具有限公司 | Strong-pulling demoulding mechanism |
| CN208035261U (en) * | 2018-02-09 | 2018-11-02 | 东莞市超恒塑料模具有限公司 | A kind of simple secondary ejector mechanism thereof |
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| CN109366910A (en) | 2019-02-22 |
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