CN212288561U - Balanced type quick ejection device of injection mold - Google Patents
Balanced type quick ejection device of injection mold Download PDFInfo
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- CN212288561U CN212288561U CN202020385681.9U CN202020385681U CN212288561U CN 212288561 U CN212288561 U CN 212288561U CN 202020385681 U CN202020385681 U CN 202020385681U CN 212288561 U CN212288561 U CN 212288561U
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Abstract
The utility model discloses an injection mold's quick ejecting device of balanced type, concretely relates to injection mold field, including the cover half of moulding plastics, the kicking block spout has been seted up to the bottom surface of the die cavity inner chamber of moulding plastics, and the inside slidable mounting of kicking block spout has balanced kicking block, and the inboard of the cover half of moulding plastics has been seted up the direction and has been led to groove and kicking block and return the groove, and the inboard slidable mounting that leads to the groove has flexible ejector pin, and the other end of flexible ejector pin is fixed to be posted with the permanent magnet, and the bottom surface fixed mounting. The utility model discloses an utilize a plurality of and the cover half inner chamber structure that moulds plastics keep level balanced kicking block as ejection mechanism, its application of force area greatly increased, but the great flexible ejector pin of adaptation diameter is ejecting, compares and reduces its pressure to the work piece surface of moulding plastics in traditional thimble structure, prevents to appear damaging the emergence of the work piece condition of moulding plastics, improves product quality, and structural strength obtains strengthening, life greatly increased.
Description
Technical Field
The utility model relates to an injection mold technical field, more specifically say, the utility model particularly relates to an injection mold's quick ejecting device of balanced type.
Background
An injection mold is a tool for producing plastic products; the injection molding is a processing method used in batch production of parts with complex shapes, and particularly relates to a method for injecting heated and melted plastics into a mold cavity under high pressure by an injection molding machine, obtaining a molded product after cooling and solidification, often causing the phenomenon that the plastic products are adsorbed in the mold cavity to cause difficulty in taking out the plastic products, in order to smoothly take out the plastic products from the mold cavity, a material ejecting device is usually added below the mold cavity, and the plastic products are ejected from the mold cavity through an ejector pin and an elastic part arranged in the material ejecting device, so that the problem of taking out the plastic products from the mold cavity can be effectively solved.
However, in practical use, most of the ejector devices of the injection mold are ejector pins or inclined ejector mechanisms, the traditional ejector pin ejection mechanism does not damage the original mold structure, the diameter of each ejector pin is generally thin, nicks are easily formed on the surface of an injection product during ejection, the surface of the product is damaged, flaws are generated on the product, the yield is low, and when the inclined ejector mechanism is used for ejection, the situation that the ejector pins are broken is caused due to the fact that the bottom of the inclined ejector pin is not uniformly stressed, the service life is very limited, and certain limitations exist.
Therefore, it is desirable to provide a balanced type fast ejecting apparatus for an injection mold.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the embodiment of the utility model provides a balanced type quick ejection device of an injection mold, through setting up large-area ejector block structure, utilize a plurality of balanced ejector blocks that keep level with the injection cover half inner chamber structure as ejection mechanism, its force application area greatly increases, the great flexible ejector pin of adaptable diameter is ejecting, it reduces to the pressure of injection molding workpiece surface to compare with traditional thimble structure, prevent to damage the emergence of the work piece condition of moulding plastics, improve product quality, and structural strength is strengthened, service life greatly increases; additionally, the utility model discloses a set up magnetomotive ejection mechanism, utilize the principle that magnet is with the same line of repulsion, it is ejecting to promote ejection mechanism through magnetic force, make ejection mechanism convert the flexible transmission into by traditional rigid drive at the in-process of application of force, the circular telegram power through the control electro-magnet changes its magnetic force size gradually, the ejection mechanism atress of messenger is softer, prevent that kicking block atress sudden change from leading to the product rupture, improve the yields of moulding plastics production, in order to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a balanced type rapid ejection device of an injection mold comprises an injection molding fixed mold, wherein an injection molding cavity is formed in the surface of the injection molding fixed mold, a plurality of ejector block chutes are formed in the bottom surface of an inner cavity of the injection molding cavity and are uniformly distributed, balanced ejector blocks are slidably mounted inside the ejector block chutes, a guide through groove and an ejector block returning groove are formed in the inner side of the injection molding fixed mold, two ends of the guide through groove are respectively communicated with the end parts of the ejector block chutes and the ejector block returning groove, a metal flange cover is fixedly mounted on the bottom surface of the ejector block returning groove, a telescopic ejector rod is slidably mounted on the inner side of the guide through groove, a returning spring is movably sleeved on the surface of the telescopic ejector rod, one end of the telescopic ejector rod is fixedly connected with the side surface of the balanced ejector block, a permanent magnet is fixedly attached to the other end of the, the inside fixed mounting in magnetic force shielding chamber has the electro-magnet, the input electric connection of electro-magnet has current generator.
In a preferred embodiment, the sum of the thicknesses of the ejector block sliding groove, the guide through groove, the ejector block returning groove and the metal flange cover is equal to the thickness from the bottom side of the injection fixed die to the surface of the inner cavity of the injection cavity, the surface of the balance ejector block and the bottom surface of the inner cavity of the injection cavity are located on the same vertical plane, and the surface of the balance ejector block is of a smooth surface structure.
In a preferred embodiment, the input terminal of the electromagnet is electrically connected to the output terminal of the current generator, and the input terminal of the current generator is electrically connected to the adjustable power source.
In a preferred embodiment, a linear bearing is fixedly mounted on the inner wall of the guide through groove, the linear bearing is slidably sleeved on the surface of the telescopic ejector rod, and the sum of the lengths of the balance ejector block, the telescopic ejector rod and the permanent magnet is equal to the sum of the lengths of the ejector block sliding groove, the guide through groove and the ejector block retraction groove.
In a preferred embodiment, a high-temperature-resistant sealing ring is sleeved on the periphery of the balance top block, the high-temperature-resistant sealing ring is a high-temperature-resistant rubber component, and one end of the high-temperature-resistant sealing ring and the surface of the inner wall of the injection molding cavity are located on the same vertical plane.
In a preferred embodiment, the magnetic shielding chamber is of a double-layer structure, an air gap is formed between the double-layer magnetic shielding chamber, the magnetic shielding chamber is made of an iron-nickel alloy material, the end of the magnetic shielding chamber is fixedly connected with one side of the injection molding fixed die, and the electromagnet is located inside the magnetic shielding chamber and a cavity formed by the injection molding fixed die.
In a preferred embodiment, the metal flange cover is made of a metal iron plate, threaded holes are formed in the side surface of the injection molding fixed die and the surface of the metal flange cover, fixing screws are arranged on the side surface of the injection molding fixed die and the surface of the metal flange cover, the injection molding fixed die and the metal flange cover are fixedly connected through the fixing screws, a baffle is fixedly welded at the end part of the telescopic ejector rod, and two ends of the retraction spring are respectively abutted against the inner wall of the ejector block retraction groove and the baffle surface of the retraction spring.
The utility model discloses a technological effect and advantage:
1. the utility model discloses a set up large tracts of land kicking block structure, utilize a plurality of balanced kicking blocks that keep level with the cover half inner chamber structure of moulding plastics as ejection mechanism, its application of force area greatly increased, but the flexible ejector pin that the adaptation diameter is great is ejecting, and its pressure to the injection moulding workpiece surface reduces compared with traditional thimble structure, prevents to appear damaging the emergence of the work piece condition of moulding plastics, improves product quality, and structural strength is strengthened, life greatly increased;
2. the utility model discloses a set up magnetomotive ejection mechanism, utilize the principle that magnet is with the line repellent, promote ejection mechanism through magnetic force and carry out ejecting for ejection mechanism converts the flexible transmission into by traditional rigid transmission at the in-process of application of force, and the circular telegram power through the control electro-magnet changes its magnetic force size gradually, and the ejection mechanism atress that makes is softer, prevents that kicking block atress sudden change from resulting in the product rupture, improves the yields of the production of moulding plastics.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic cross-sectional structure diagram of the present invention.
Fig. 3 is a schematic view of the connection structure of the balance top block of the present invention.
Fig. 4 is a schematic structural diagram of a position a in fig. 3 according to the present invention.
The reference signs are: 1. injection molding a fixed die; 2. injection molding a cavity; 3. a top block chute; 4. balancing the top block; 5. A magnetic shielding cavity; 6. an electromagnet; 7. a guide through groove; 8. a top block backoff slot; 9. a telescopic ejector rod; 10. A retraction spring; 11. a permanent magnet; 12. a metal flange cover; 13. fixing the screw rod; 14. a pressure sensor; 41. a high temperature resistant seal ring; 71. and a linear bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The balanced type rapid ejection device of the injection mold shown in the attached figures 1-4 comprises an injection molding fixed mold 1, an injection molding cavity 2 is arranged on the surface of the injection molding fixed mold 1, a plurality of ejector block chutes 3 are arranged on the bottom surface of the inner cavity of the injection molding cavity 2 and are uniformly distributed, a balance ejector block 4 is slidably mounted in the ejector block chutes 3, a guide through groove 7 and an ejector block backspace groove 8 are arranged on the inner side of the injection molding fixed mold 1, two ends of the guide through groove 7 are respectively communicated with the end parts of the ejector block chutes 3 and the ejector block backspace groove 8, a metal flange cover 12 is fixedly mounted on the bottom surface of the ejector block backspace groove 8, a telescopic ejector rod 9 is slidably mounted on the inner side of the guide through groove 7, a backspace spring 10 is movably sleeved on the surface of the telescopic ejector rod 9, one end of the telescopic ejector rod 9 is fixedly connected with the side surface of the balance ejector block 4, an electromagnet 6 is fixedly installed inside the magnetic shielding cavity 5, and an input end of the electromagnet 6 is electrically connected with a current generator.
The implementation mode is specifically as follows: by arranging a large-area ejector block structure and using a plurality of balance ejector blocks 4 which are flush with the inner cavity structure of the injection fixed die 1 as the ejection mechanism, the force application area is greatly increased, the ejection mechanism can be matched with a telescopic ejector rod 9 with a larger diameter for ejection, the pressure on the surface of an injection molding workpiece is reduced compared with the traditional ejector pin structure, the condition that the injection molding workpiece is damaged is prevented, the product quality is improved, the structural strength is enhanced, and the service life is greatly prolonged; additionally, the utility model discloses a set up magnetomotive ejection mechanism, utilize the principle that magnet is with the same line of repulsion, promote ejection mechanism through magnetic force and carry out ejecting for ejection mechanism converts the flexible transmission into by traditional rigid drive at the in-process of application of force, and the circular telegram power through control electro-magnet 6 changes its magnetic force size gradually, and the ejection mechanism atress of messenger is softer, prevents that kicking block atress sudden change from leading to the product rupture, improves the yields of the production of moulding plastics.
The thickness sum of the ejector block sliding groove 3, the guide through groove 7, the ejector block backspacing groove 8 and the metal flange cover 12 is equal to the thickness from the bottom side of the injection molding fixed die 1 to the surface of the inner cavity of the injection molding cavity 2, the surface of the balance ejector block 4 and the bottom surface of the inner cavity of the injection molding cavity 2 are located on the same vertical surface, the surface of the balance ejector block 4 is of a smooth surface structure, and the surface of the balance ejector block 4 is prevented from leaving dents on the surface of an injection molding part to affect the attractiveness of a.
The input end of the electromagnet 6 is electrically connected with the output end of the current generator, the input end of the current generator is electrically connected with a power source with adjustable power, and the magnetic force of the electromagnet 6 is gradually changed by controlling the power on of the electromagnet, so that the stress of the ejection mechanism is softer.
Wherein, the inner wall fixed mounting of the logical groove 7 of direction has linear bearing 71, and linear bearing 71 slides and cup joints in the surface of flexible ejector pin 9, and the length sum of balanced kicking block 4, flexible ejector pin 9 and permanent magnet 11 equals the length sum of kicking block spout 3, the logical groove 7 of direction and kicking block backspace groove 8, prevents that balanced kicking block 4 from returning the too much and causing balanced kicking block 4 surface pit to appear.
Wherein, the week side of balanced kicking block 4 has cup jointed high temperature resistant sealing washer 41, and high temperature resistant sealing washer 41 is high temperature resistant rubber material component, and the one end of high temperature resistant sealing washer 41 is located same vertical face with the surface of moulding plastics die cavity 2 inner wall, and soft high temperature resistant sealing washer 41 provides certain expansion space for the thermal expansion of balanced kicking block 4 to realize sealed.
Wherein, magnetic force shielding chamber 5 is bilayer structure, and is equipped with the air gap between the double-deck magnetic force shielding chamber 5, and magnetic force shielding chamber 5 is iron-nickel alloy material component, and the tip in magnetic force shielding chamber 5 and the one side fixed connection of the cover half 1 of moulding plastics, and electro-magnet 6 is located inside the cavity that magnetic force shielding chamber 5 and the cover half 1 of moulding plastics are constituteed, for 6 component magnetism shields of electro-magnet, prevents that the electro-magnet from influencing injection moulding equipment's normal work.
Wherein, the metal flange cover 12 is constructed for metal iron plate material, the side of the injection molding fixed die 1 and the surface of the metal flange cover 12 are provided with threaded holes and are provided with fixing screw rods 13, the injection molding fixed die 1 and the metal flange cover 12 are fixedly connected through the fixing screw rods 13, the end part of the telescopic ejector rod 9 is fixedly welded with a baffle plate, two ends of a backspacing spring 10 are respectively mutually abutted with the inner wall of the ejector block backspacing groove 8 and the baffle plate surface of the backspacing spring 10, and power is provided for backspacing of the balance ejector block 4 through attraction of the permanent magnet 11 to the metal flange cover 12 and elasticity of the backspacing spring 10.
The utility model discloses the theory of operation:
firstly, after the injection molding product is finished, cooling the product until the surface is solidified, after the solidification is finished, starting a current generator to generate magnetic force through an electromagnet 6, applying force to a telescopic ejector rod 9 by utilizing the principle that like poles of a permanent magnet 11 and the electromagnet 6 repel each other, enabling the telescopic ejector rod 9 to push a balance ejector block 4 to eject along the inner wall of an ejector block sliding groove 3, continuously increasing the output power of the electromagnet 6, gradually increasing the force applied by the electromagnet 6 to the telescopic ejector rod 9 until an injection molding piece is ejected out and separated from an injection molding cavity 2, the magnetic force of the electromagnet 6 is gradually changed by controlling the power of the electromagnet, so that the stress of the ejection mechanism is softer, the product is prevented from being broken due to sudden stress change of the ejection block, the yield of injection molding production is improved, after the material is ejected, the balance ejector block 4 retracts into the ejector block chute 3 through the traction of the telescopic ejector rod 9 and the permanent magnet 11, and the whole ejection and retraction operation is finished.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a quick ejecting device of balanced type of injection mold, is including moulding plastics cover half (1), mould plastics die cavity (2), its characterized in that have been seted up on the surface of mould plastics cover half (1): the bottom surface of the inner cavity of the injection molding cavity (2) is provided with a plurality of ejector block sliding grooves (3) and is uniformly distributed, the inner sliding device of the ejector block sliding grooves (3) is provided with a balance ejector block (4), the inner side of the injection molding fixed die (1) is provided with a guide through groove (7) and an ejector block backspacing groove (8), the two ends of the guide through groove (7) are respectively communicated with the end parts of the ejector block sliding grooves (3) and the ejector block backspacing groove (8), the bottom surface of the ejector block backspacing groove (8) is fixedly provided with a metal flange cover (12), the inner side of the guide through groove (7) is slidably provided with a telescopic ejector rod (9), the surface of the telescopic ejector rod (9) is movably sleeved with a backspacing spring (10), one end of the telescopic ejector rod (9) is fixedly connected with the side surface of the balance ejector block (4), the other end of the telescopic ejector rod (9) is fixedly pasted with a permanent magnet (11), the, the inside fixed mounting in magnetic force shielding chamber (5) has electro-magnet (6), the input electric connection of electro-magnet (6) has current generator.
2. The balanced type rapid ejection device of the injection mold according to claim 1, characterized in that: the thickness sum of the ejector block sliding groove (3), the guide through groove (7), the ejector block backspacing groove (8) and the metal flange cover (12) is equal to the thickness from the bottom side of the injection molding fixed die (1) to the surface of the inner cavity of the injection molding cavity (2), the surface of the balance ejector block (4) and the bottom surface of the inner cavity of the injection molding cavity (2) are located on the same vertical surface, and the surface of the balance ejector block (4) is of a smooth surface structure.
3. The balanced type rapid ejection device of the injection mold according to claim 1, characterized in that: the input end of the electromagnet (6) is electrically connected with the output end of the current generator, and the input end of the current generator is electrically connected with an adjustable power supply.
4. The balanced type rapid ejection device of the injection mold according to claim 1, characterized in that: the inner wall of the guide through groove (7) is fixedly provided with a linear bearing (71), the linear bearing (71) is sleeved on the surface of the telescopic ejector rod (9) in a sliding mode, and the sum of the lengths of the balance ejector block (4), the telescopic ejector rod (9) and the permanent magnet (11) is equal to the sum of the lengths of the ejector block sliding groove (3), the guide through groove (7) and the ejector block backspacing groove (8).
5. The balanced type rapid ejection device of the injection mold according to claim 1, characterized in that: the high-temperature-resistant sealing ring (41) is sleeved on the periphery of the balance ejecting block (4), the high-temperature-resistant sealing ring (41) is a high-temperature-resistant rubber component, and one end of the high-temperature-resistant sealing ring (41) is located on the same vertical surface with the surface of the inner wall of the injection molding cavity (2).
6. The balanced type rapid ejection device of the injection mold according to claim 1, characterized in that: magnetic force shielding chamber (5) are bilayer structure, and are equipped with the air gap between double-deck magnetic force shielding chamber (5), magnetic force shielding chamber (5) are iron-nickel alloy material component, the tip in magnetic force shielding chamber (5) and the one side fixed connection who moulds plastics cover half (1), electro-magnet (6) are located inside the cavity that magnetic force shielding chamber (5) and mould plastics cover half (1) are constituteed.
7. The balanced type rapid ejection device of the injection mold according to claim 1, characterized in that: the injection molding die is characterized in that the metal flange cover (12) is made of a metal iron plate, threaded holes are formed in the side face of the injection molding fixed die (1) and the surface of the metal flange cover (12) and provided with fixing screws (13), the injection molding fixed die (1) and the metal flange cover (12) are fixedly connected through the fixing screws (13), baffles are fixedly welded at the end portions of the telescopic ejector rods (9), and the two ends of the backspacing spring (10) are respectively abutted to the inner wall of the ejector block backspacing groove (8) and the surfaces of the baffles of the backspacing spring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020385681.9U CN212288561U (en) | 2020-03-24 | 2020-03-24 | Balanced type quick ejection device of injection mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020385681.9U CN212288561U (en) | 2020-03-24 | 2020-03-24 | Balanced type quick ejection device of injection mold |
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| CN212288561U true CN212288561U (en) | 2021-01-05 |
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| CN202020385681.9U Active CN212288561U (en) | 2020-03-24 | 2020-03-24 | Balanced type quick ejection device of injection mold |
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| CN (1) | CN212288561U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114571662A (en) * | 2022-04-01 | 2022-06-03 | 阜阳冈奇精密科技有限公司 | Improved injection mold |
| CN116533462A (en) * | 2023-07-06 | 2023-08-04 | 天津吉诺科技有限公司 | Communication connector plastic housing forming equipment and forming method |
-
2020
- 2020-03-24 CN CN202020385681.9U patent/CN212288561U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114571662A (en) * | 2022-04-01 | 2022-06-03 | 阜阳冈奇精密科技有限公司 | Improved injection mold |
| CN116533462A (en) * | 2023-07-06 | 2023-08-04 | 天津吉诺科技有限公司 | Communication connector plastic housing forming equipment and forming method |
| CN116533462B (en) * | 2023-07-06 | 2023-09-12 | 天津吉诺科技有限公司 | Communication connector plastic housing forming equipment and forming method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210412 Address after: 201600 building 4, 252 Shangyu Road, Xinbang Town, Songjiang District, Shanghai Patentee after: Shanghai Sade Mould Technology Co.,Ltd. Address before: 136200 Liaoyuan vocational and technical college, No.777 Guangming Street, Liaoyuan City, Jilin Province Patentee before: Zheng Shuzhen |
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| TR01 | Transfer of patent right |