CN113211727B - High-speed train rubber inner windshield injection mold demoulding mechanism - Google Patents

High-speed train rubber inner windshield injection mold demoulding mechanism Download PDF

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Publication number
CN113211727B
CN113211727B CN202110403923.1A CN202110403923A CN113211727B CN 113211727 B CN113211727 B CN 113211727B CN 202110403923 A CN202110403923 A CN 202110403923A CN 113211727 B CN113211727 B CN 113211727B
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China
Prior art keywords
trapezoidal
connecting block
movable angle
movable
main body
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CN202110403923.1A
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Chinese (zh)
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CN113211727A (en
Inventor
曾宪奎
李佳
朱金梅
姜晓妍
李嘉炜
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Qingdao Aotai Transportation Equipment Co ltd
Qingdao University of Science and Technology
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Qingdao Aotai Transportation Equipment Co ltd
Qingdao University of Science and Technology
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Priority to CN202110403923.1A priority Critical patent/CN113211727B/en
Publication of CN113211727A publication Critical patent/CN113211727A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/44Removing or ejecting moulded articles for undercut articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3052Windscreens
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

The invention discloses a demoulding mechanism of a rubber inner windshield injection mould of a high-speed train, which comprises a core mould main body, a movable angle and a connecting block; the movable angle, the connecting block and the core mould main body are mutually linked through a trapezoidal groove and a trapezoidal block; one corner of the core mould main body is provided with a square notch for installing a movable corner and a connecting block; the movable angle is positioned on the outer side of the core mold, the connecting block is positioned between the movable angle and the core mold main body and is wedge-shaped, when the connecting block moves upwards, the movable angle is contracted towards the inside of the main body through the inclined plane contacting with the movable angle, so that the molded rubber inner windshield is separated from the surface of the core mold at the angle, and the inner windshield can be conveniently taken down; the invention is used for producing the rubber inner windshield of the high-speed train, reduces the demoulding difficulty, ensures that the inner windshield is not damaged during demoulding, and improves the production efficiency and the product quality.

Description

High-speed train rubber inner windshield injection mold demoulding mechanism
Technical Field
The invention relates to the field of mold manufacturing and rubber injection molding, in particular to a demoulding mechanism of an injection mold of an inner windshield of a high-speed train.
Background
The high-speed train windshield is provided with an inner windshield and an outer windshield, the inner windshield is also provided with a folding shed windshield and a rubber windshield, the rubber inner windshield is an important part which plays a role in flexible connection among various train bodies of the high-speed train, and the rubber inner windshield has great influence on the sealing property, riding comfort and the like of the train; the inner windshield of the rubber is integrally formed by a rubber material through a mold with an upper mold, a lower mold and a core mold structure, and the inner windshield of the rubber is characterized in that the inner windshield of the rubber is large in size, is annular in shape, has a U-shaped structure with an inward opening on the section, is relatively thin in wall thickness and the like, so that a product is difficult to take down from the core mold of the mold after being formed, the manual forced demolding is not only high in labor intensity and low in production efficiency, but also the product of the inner windshield easy to cause is damaged, thereby influencing the product quality, even causing the product to be scrapped, and reducing the production economic benefit.
Therefore, the invention provides a demoulding mechanism of an injection mould of an inner windshield of a high-speed train, which is used for solving the problems.
Disclosure of Invention
Aiming at the problem that the existing mold is difficult to demold, the invention provides a demolding device on a mold core, which is used for reducing the labor intensity of workers, improving the production efficiency and ensuring the appearance integrity of an inner windshield.
The technical scheme adopted by the invention is as follows:
a demoulding mechanism of a rubber inner windshield injection mould of a high-speed train comprises a core mould main body, a movable angle and a connecting block; the movable angle, the connecting block and the core mould main body are mutually linked through a trapezoidal groove and a trapezoidal block; one corner of the core mold main body is provided with a square notch used for installing the movable corner and the connecting block; the movable angle is positioned on the outer side of the core mould, and the surface of the movable angle is a part of a forming surface during forming; the connecting block is positioned between the movable angle and the core mold main body and is wedge-shaped, when the connecting block moves upwards, the movable angle is contracted towards the inside of the main body through the inclined plane contacting with the movable angle, so that the molded rubber inner windshield is separated from the surface of the core mold at the corner, the inner windshield is convenient to take down, and an auxiliary structure is arranged in the movable angle.
Furthermore, each side of the two sides of the movable angle is provided with two short trapezoidal blocks which are vertically arranged, the trapezoidal blocks are horizontal in direction and matched with the trapezoidal grooves in the main body, and the movable angle can only move along the horizontal direction.
Furthermore, two through trapezoidal grooves which are horizontally arranged are arranged on the contact surface of the movable angle and the connecting block, and the length of each trapezoidal groove is along the vertical direction and is used for being matched with a trapezoidal block on the connecting block.
Furthermore, the connecting block is wedge-shaped, the surface contacting with the movable angle is an inclined surface, the rest surfaces are vertical and horizontal surfaces, two trapezoidal blocks are arranged on the inclined surface, and the shape and the position of the trapezoidal blocks correspond to the grooves in the movable angle.
Furthermore, two trapezoidal blocks are horizontally arranged on the opposite side of the inclined plane of the connecting block, the length direction of each trapezoidal block is vertical, and the trapezoidal blocks are matched with corresponding trapezoidal grooves in the main body, so that the connecting block can only move up and down along the vertical direction.
Furthermore, a trapezoidal groove matched with the movable corner and the connecting block is formed in the core mold main body, a pair of abdicating grooves is formed between the mounting positions of the movable corner and the connecting block, and the length of each abdicating groove is equal to or slightly greater than the length of the trapezoidal blocks on two sides of the movable corner, so that the abdicating grooves are formed in the trapezoidal blocks when the movable corner is mounted.
Furthermore, the trapezoidal grooves corresponding to the trapezoidal blocks on the two sides of the movable angle on the core mold main body are formed outwards from the abdicating grooves and do not penetrate through the outer surface of the core mold, and the purpose of the forming method is to ensure the integrity of the forming surface and limit the movable angle to be not protruded out of the profile of the parting surface integrally through the limitation of the bottom of the trapezoidal groove and the trapezoidal blocks of the movable angle.
Further, auxiliary structure includes circle piece, elasticity lug, drive gear, driving rack, auxiliary spring, extrusion piece, and the symmetry activity is provided with the circle piece in the activity angle, the circle piece lateral wall is provided with the elasticity lug along the circumferencial direction equidistance to the elasticity lug exposes and sets up in activity angle and connecting block complex dovetail groove, the circle piece symmetry sets up in the both sides of pivot, is provided with drive gear in the pivot to one side meshing of drive gear is connected and is provided with driving rack, driving rack's one end activity is provided with the extrusion piece, the one end of extrusion piece is provided with auxiliary spring, and auxiliary spring's the other end setting is in driving rack.
Furthermore, the extrusion block is movably arranged at one end of the transmission rack, the extrusion block and the transmission rack are parallel to the upper end surface and the lower end surface of the movable angle, the end surface of one end of the extrusion block is an inclined surface, and the inclined surface is parallel to the body-shaped groove on the movable angle.
The demoulding mechanism of the rubber inner windshield injection mould of the high-speed train has the following beneficial effects that:
according to the invention, the sliding block mechanism is added on the original core mould, so that the vertical movement of the connecting block is converted into the horizontal movement of the movable angle, the integrity of the profile of the core mould is ensured, and the inner windshield cannot be tightly coated on the core mould during demoulding, so that the demoulding difficulty is reduced, the inner windshield is not damaged during demoulding, and the production efficiency and the product quality are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the slot in the mandrel body;
FIG. 3 is an enlarged view of the movable corner and the connecting block;
fig. 4 is a schematic view of the connection of the auxiliary structure in the active corner.
In the figure: 1. the core mould comprises a core mould body 2, a movable angle 3, a connecting block 4, an auxiliary structure 401, a round block 402, an elastic lug 403, a transmission gear 404, a transmission rack 405, an auxiliary spring 406 and an extrusion block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by those skilled in the art without making any creative effort, belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution:
the implementation mode is as follows:
as shown in fig. 1, the invention discloses a demoulding mechanism of a rubber inner windshield injection mould of a high-speed train, which comprises a core mould main body 1, a movable angle 2 and a connecting block 3; during assembly, short trapezoidal blocks on the movable corners 2 are aligned with the abdicating grooves on two sides of the square notch of the core mould main body 1, so that the movable corners 2 fall from the inner side of the core mould main body 1 to the lower surfaces of the movable corners 2 to be parallel to the lower surface of the core mould main body 1 (the two trapezoidal blocks are respectively aligned with the corresponding trapezoidal grooves), and can slide outwards into the trapezoidal grooves; then, the trapezoidal blocks of the connecting block 3 are respectively aligned with the trapezoidal grooves of the core mould main body 1 and the core mould movable angle 2 from the upper part, under the action of gravity, the connecting block 3 slides downwards, the trapezoidal blocks scratch the corresponding trapezoidal grooves, because the contact surface between the movable angle 2 and the connecting block 3 is an inclined surface, the movable slide block can provide an inclined downward pressure for the movable angle 2 under the action of gravity, the pressure can be decomposed into a horizontal thrust and a vertical downward pressure, the downward pressure is supported and offset by the trapezoidal grooves between the movable angle 2 and the core mould main body 1, and the horizontal thrust pushes the movable angle 2 to slide outwards along the horizontal trapezoidal grooves on the core mould main body 1 until the limit of the trapezoidal grooves is reached; meanwhile, due to the gravity of the connecting block, the movable angle 2 is always propped against the limit position, and the completeness of the shape of the die cavity is kept.
The working principle is as follows: when the mould is opened, a tool such as a jack is used for jacking the connecting block 3 to enable the connecting block to ascend along the trapezoidal groove. Because the movable corner 2 is connected with the connecting block 3 through the inclined plane, the connecting block 3 can provide an upward inclined pulling force for the movable corner 2, the pulling force can be decomposed into an inward horizontal pulling force and a vertical upward pulling force, the upward pulling force is supported and counteracted by the trapezoidal groove between the movable corner 2 and the core mold main body 1, the horizontal pulling force pulls the movable corner 2 to slide inwards along the trapezoidal groove, and when the connecting block 3 is ejected upwards, the auxiliary structure 4 arranged in the movable corner 2 can be triggered to assist the sliding and falling of the movable corner 2, the trapezoidal block on the connecting block 3 slides in the trapezoidal groove on the movable corner 2, the elastic lug 402 arranged drives the round block 401 to rotate, the transmission gear 403 is driven to be meshed with the transmission rack 404 for transmission, the extrusion block 406 is driven to horizontally extrude the connecting block 3, a vertical component force and a horizontal component force are also generated, and the auxiliary spring 405 arranged at one end of the extrusion block 406 has an extrusion buffering effect on the extrusion block 406 And the terminal surface of the other end of the extrusion block 406 is set to be an inclined surface which is parallel to the trapezoidal groove on the movable corner 2, so that the phenomenon of blocking when the extrusion block 406 extrudes the connecting block 3 is avoided, the separation speed between the movable corner 2 and the connecting block 3 can be further improved, the molded rubber inner windshield is separated from the core mold at the corner, and a product can be easily taken down from the corner.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a windshield injection mold demoulding mechanism in high speed train rubber, uses on the mandrel of windshield mold in the high speed train rubber that has last mould, lower mould and mandrel structure, includes mandrel main part (1), activity angle (2), connecting block (3) triplex, its characterized in that: the movable angle (2), the connecting block (3) and the core mould main body (1) are mutually linked through a trapezoidal groove and a trapezoidal block, a square notch is formed in one corner of the core mould main body (1) and used for installing the movable angle (2) and the connecting block (3), the movable angle (2) is installed on the outer side of the core mould, the surface of the movable angle (2) is a part of a forming surface during forming, the connecting block (3) is located between the movable angle (2) and the core mould main body (1) and is in a wedge shape, when the connecting block (3) moves upwards, the movable angle (2) is contracted towards the interior of the core mould main body (1) through an inclined plane in contact with the movable angle (2), so that a formed rubber inner windshield is separated from the surface of the core mould at the corner, the inner windshield can be conveniently taken down, and an auxiliary structure (4) is arranged in the movable angle (2);
the auxiliary structure (4) comprises round blocks (401), elastic lugs (402), transmission gears (403), transmission racks (404), auxiliary springs (405) and extrusion blocks (406), the round blocks (401) are symmetrically and movably arranged in the movable angles (2), the outer side wall of the round block (401) is provided with elastic lugs (402) at equal intervals along the circumferential direction, and the elastic lug (402) is exposed and arranged in the trapezoidal groove of the movable corner (2) matched with the connecting block (3), the round blocks (401) are symmetrically arranged at two sides of the rotating shaft, the rotating shaft is provided with a transmission gear (403), and one side of the transmission gear (403) is engaged and connected with a transmission rack (404), one end of the transmission rack (404) is movably provided with an extrusion block (406), one end of the extrusion block (406) is provided with an auxiliary spring (405), and the other end of the auxiliary spring (405) is arranged in the transmission rack (404);
the trapezoidal grooves corresponding to the trapezoidal blocks on the two sides of the movable corner (2) on the core mold main body (1) are formed outwards from the abdicating grooves and do not penetrate through the outer surface of the core mold, and the trapezoidal blocks on the movable corner (2) need to be just clamped at the cut-off position of the trapezoidal grooves, so that the movable corner (2) is flush with the surface of the core mold main body (1).
2. The demoulding mechanism of the rubber inner windshield injection mould of the high-speed train according to claim 1, characterized in that: each side of the two sides of the movable angle (2) is provided with two short trapezoidal blocks which are vertically arranged, the direction of each trapezoidal block is horizontal, and the short trapezoidal blocks are matched with the trapezoidal grooves in the main body to ensure that the movable angle (2) can only move along the horizontal direction.
3. The demoulding mechanism of the rubber inner windshield injection mould of the high-speed train as claimed in claim 1, wherein: two through trapezoidal grooves which are horizontally arranged are arranged on the contact surface of the movable angle (2) and the connecting block (3), and the length of each trapezoidal groove is along the vertical direction and is used for being matched with a trapezoidal block on the connecting block (3).
4. The demoulding mechanism of the rubber inner windshield injection mould of the high-speed train as claimed in claim 1, wherein: the connecting block (3) is wedge-shaped, the surface contacting with the movable angle (2) is an inclined surface, the rest surfaces are vertical and horizontal surfaces, two trapezoidal blocks are arranged on the inclined surface, and the shape and the position of the trapezoidal blocks correspond to the grooves in the movable angle (2).
5. The demoulding mechanism of the rubber inner windshield injection mould of the high-speed train as claimed in claim 1, wherein: two trapezoid blocks are horizontally arranged on the opposite side of the inclined plane of the connecting block (3), and the length of each trapezoid block is matched with a corresponding trapezoid groove in the core mould main body (1) along the vertical direction, so that the connecting block (3) can only move up and down along the vertical direction.
6. The demoulding mechanism of the rubber inner windshield injection mould of the high-speed train as claimed in claim 1, wherein: the core mould main body (1) is provided with a trapezoidal groove matched with the movable angle (2) and the connecting block (3), a pair of abdicating grooves is arranged between the mounting positions of the movable angle (2) and the connecting block (3), the length of each abdicating groove is equal to or slightly greater than the length of the trapezoidal blocks on two sides of the movable angle (2), and the core mould main body aims to abdicate the trapezoidal blocks when the movable angle (2) is mounted.
7. The demoulding mechanism of the rubber inner windshield injection mould of the high-speed train according to claim 1, characterized in that: the extrusion block (406) is movably arranged at one end of the transmission rack (404), the extrusion block and the transmission rack are parallel to the upper end surface and the lower end surface of the movable angle (2), the end surface of one end of the extrusion block (406) is an inclined surface, and the inclined surface is parallel to the body-shaped groove on the movable angle (2).
CN202110403923.1A 2021-04-15 2021-04-15 High-speed train rubber inner windshield injection mold demoulding mechanism Active CN113211727B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110403923.1A CN113211727B (en) 2021-04-15 2021-04-15 High-speed train rubber inner windshield injection mold demoulding mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110403923.1A CN113211727B (en) 2021-04-15 2021-04-15 High-speed train rubber inner windshield injection mold demoulding mechanism

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CN113211727A CN113211727A (en) 2021-08-06
CN113211727B true CN113211727B (en) 2022-08-30

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201792457U (en) * 2010-09-25 2011-04-13 宁波万隆模塑成型有限公司 Plastic mould capable of demoulding quickly
CN105984053B (en) * 2015-01-27 2018-07-03 株洲时代新材料科技股份有限公司 Windscreen capsule manufacturing method and molding die in a kind of train
CN206048680U (en) * 2016-06-30 2017-03-29 青岛澳泰交通设备有限公司 Windscreen curing forming mold in a kind of bullet train group annular
CN106426807B (en) * 2016-12-13 2018-07-03 中车青岛四方车辆研究所有限公司 Caoutchouc elasticity node injection molding
CN209597890U (en) * 2019-01-31 2019-11-08 长春东北输送设备制造有限公司 It is a kind of to squeeze vertical ring core mould
CN110281477A (en) * 2019-07-10 2019-09-27 宁海县第一注塑模具有限公司 A kind of straight heading tape of injection mold is dynamic tiltedly to take out combination demolding device
CN110370511B (en) * 2019-08-28 2020-04-24 南通迅达橡塑制造有限公司 Synthetic rubber part forming die
CN211968249U (en) * 2020-02-26 2020-11-20 深圳市银宝山新科技股份有限公司 Demoulding device and automobile function piece mould

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