CN109605682B - Injection mould - Google Patents

Injection mould Download PDF

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Publication number
CN109605682B
CN109605682B CN201811471958.3A CN201811471958A CN109605682B CN 109605682 B CN109605682 B CN 109605682B CN 201811471958 A CN201811471958 A CN 201811471958A CN 109605682 B CN109605682 B CN 109605682B
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CN
China
Prior art keywords
rod
mold
injection molding
fixed
movable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201811471958.3A
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Chinese (zh)
Other versions
CN109605682A (en
Inventor
夏春翠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Donghong Plastic Industry Co ltd
Original Assignee
Jiangsu Donghong Plastic Industry Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Donghong Plastic Industry Co ltd filed Critical Jiangsu Donghong Plastic Industry Co ltd
Priority to CN201811471958.3A priority Critical patent/CN109605682B/en
Publication of CN109605682A publication Critical patent/CN109605682A/en
Application granted granted Critical
Publication of CN109605682B publication Critical patent/CN109605682B/en
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Classifications

    • 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
    • B29C45/332Mountings or guides therefor; Drives therefor
    • 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
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • B29C45/401Ejector pin constructions or mountings
    • 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
    • B29C45/72Heating or cooling
    • B29C45/73Heating or cooling of the mould
    • B29C45/7312Construction of heating or cooling fluid flow channels
    • 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
    • B29C45/332Mountings or guides therefor; Drives therefor
    • B29C2045/334Mountings or guides therefor; Drives therefor several transversely movable mould parts driven by a single drive means
    • 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
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • B29C2045/4042Ejector constructions; Ejector operating mechanisms driven by rack and pinion means

Abstract

The invention provides an injection mold which comprises a fixed mold and a movable mold, wherein an injection molding cavity is arranged in the fixed mold, an injection molding hole is formed in the movable mold, a demolding device is arranged below the injection molding cavity, the demolding device comprises a motor, a bidirectional threaded rod, a movable block in threaded connection with the bidirectional threaded rod, a connecting rod hinged with the movable block and a top plate hinged with the connecting rod, and a top rod used for ejecting a molded plastic part is arranged on the top plate; a first bevel gear is fixed on the bidirectional threaded rod, a transmission rod is arranged above the first bevel gear, and a second bevel gear is arranged on the transmission rod; a driven rod is arranged above the transmission rod, and a third bevel gear is arranged at one end of the driven rod; the other end of the driven rod is fixedly connected with a supporting rod, and the supporting rod is hinged with the movable die; the two connecting rods are driven by the bidirectional threaded rod to move oppositely to eject the ejector rod, the supporting rod supporting the movable mold to move is linked with the bidirectional threaded rod by the bevel gear, the driving rod and the driven rod, the movable mold is moved to one side, and meanwhile, the molded plastic part is ejected.

Description

Injection mould
Technical Field
The invention relates to the field of injection molding machines, in particular to an injection mold.
Background
Injection molding is a method for producing and molding industrial products, the products generally adopt rubber injection molding and plastic injection molding, and the injection molding can also be divided into injection molding die pressing method and die casting method, an injection molding machine (an injection machine or an injection molding machine for short) is main molding equipment for manufacturing thermoplastic plastics or thermosetting materials into plastic products with various shapes by utilizing a plastic molding die, and the injection molding is realized by the injection molding machine and the die; after the existing injection mold finishes injection molding, the movable mold generally needs to be lifted first, and then a molded plastic part is ejected out, so that the movable mold has a large moving stroke, a complex structure and inconvenience in operation.
Disclosure of Invention
In order to solve the technical problems, the invention provides an injection mold.
An injection mold comprises a fixed mold and a movable mold movably connected with the fixed mold, wherein an injection molding cavity for molding molten plastic is arranged in the fixed mold, an injection molding hole for injection molding is formed in the movable mold, a demolding device for ejecting a molded plastic part is arranged below the injection molding cavity, the demolding device comprises a motor arranged on one side of the fixed mold, an output shaft of the motor is fixedly connected with a bidirectional threaded rod through a coupler, and one end, far away from the motor, of the bidirectional threaded rod is connected with the inner wall of the fixed mold through a bearing; the two-way threaded rod is in threaded connection with two symmetrical moving blocks, the upper ends of the two moving blocks are hinged with connecting rods, the upper ends of the two connecting rods are hinged with a top plate, an ejector rod used for ejecting a molded plastic part is arranged on the top plate, and a through hole for ejecting the ejector rod is formed in the bottom of the injection molding cavity;
two first bevel gears are fixed at two ends of the bidirectional threaded rod, a transmission rod is arranged above the first bevel gears, and second bevel gears are fixed at two ends of the transmission rod and meshed with the first bevel gears; a driven rod is arranged above the transmission rod, a third bevel gear meshed with the second bevel gear is arranged at one end of the driven rod, and a supporting rod is fixedly connected to the other end of the driven rod after penetrating through the inner wall of the fixed die; the upper end of the supporting rod is hinged with the movable die.
Preferably, two sliding grooves are symmetrically formed in the lower end face of the top plate, sliding blocks are connected in the sliding grooves in a sliding mode, and the upper end of the connecting rod is hinged to the sliding blocks.
Preferably, a temperature control pipe for adjusting the temperature of the injection molding cavity is arranged in the side wall of the injection molding cavity.
Preferably, the bidirectional threaded rod is provided with a limiting block for preventing the moving block from slipping.
Preferably, a buffer spring is fixed at the lower end of the ejector rod.
The invention provides an injection mold.A demolding device is arranged below an injection molding cavity, two connecting rods are driven by a bidirectional threaded rod to move oppositely to eject an ejector rod, a supporting rod for supporting a movable mold to move is linked with the bidirectional threaded rod by utilizing a bevel gear, a driving rod and a driven rod, and a molded plastic part is ejected while the movable mold moves to one side; set up the accuse temperature pipe in the lateral wall in the chamber of moulding plastics, preheat or cool off the chamber of moulding plastics through providing heat source or cold source in to the accuse temperature pipe, improved shaping quality and shaping efficiency.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic view of the working state of the present invention;
the figures in the drawings represent:
1. the fixed die 2, the movable die 3, the injection molding cavity 4, the motor 5, the bidirectional threaded rod 6 and the moving block
7. Limiting block 8, connecting rod 9, top plate 10, sliding groove 11, sliding block 12 and ejector rod
13. A buffer spring 14, a first bevel gear 15, a transmission rod 16 and a second bevel gear
17. Driven rod 18, third bevel gear 19, support rod 20, temperature control pipe.
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 "front", "rear", "left", "right", "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-3, an injection mold comprises a fixed mold 1 and a movable mold 2 movably connected with the fixed mold 1, wherein an injection molding cavity 3 for molding molten plastic is arranged in the fixed mold 1, an injection molding hole for injection molding is arranged on the movable mold 2, a demolding device for ejecting a molded plastic part is arranged below the injection molding cavity 3, the demolding device comprises a motor 4 arranged on one side of the fixed mold 1, an output shaft of the motor 4 is fixedly connected with a bidirectional threaded rod 5 through a coupler, and one end, far away from the motor 4, of the bidirectional threaded rod 5 is connected with the inner wall of the fixed mold 1 through a bearing; two symmetrical moving blocks 6 are in threaded connection with the bidirectional threaded rod 5, and two ends of the threads are fixed with limiting blocks 7 for preventing the moving blocks 6 from slipping; the upper ends of the two moving blocks 6 are respectively hinged with a connecting rod 8, a top plate 9 is arranged above the connecting rod 8, two symmetrical sliding grooves 10 are arranged on the lower end surface of the top plate 9, sliding blocks 11 are connected in the sliding grooves 10 in a sliding mode, and the upper ends of the connecting rods 8 are hinged with the top plate 9 through the sliding blocks 11; the top plate 9 is provided with an ejector rod 12 for ejecting a molded plastic part, the lower end of the ejector rod 12 is fixed with a buffer spring 13, and the bottom of the injection molding cavity 3 is provided with a through hole for ejecting the ejector rod 12;
two first bevel gears 14 are symmetrically fixed at two ends of the bidirectional threaded rod 5, a transmission rod 15 is arranged above the first bevel gears 14, second bevel gears 16 are fixed at two ends of the transmission rod 15, and the second bevel gears 16 are meshed with the first bevel gears 14; a driven rod 17 is arranged above the transmission rod 15, a third bevel gear 18 meshed with the second bevel gear 16 is arranged at one end of the driven rod 17, a supporting rod 19 used for supporting the movable die 2 to move is fixedly connected to the other end of the driven rod 17 after penetrating through the inner wall of the fixed die 1, and the upper end of the supporting rod 19 is hinged with the movable die 2; after the plastic part is molded, the motor 4 is operated to drive the bidirectional threaded rod 5 to rotate, and the driven rod 17 rotates along with the transmission of the transmission rod 15 and the bevel gear, so that the support rod 19 is driven to rotate, and the movable mould 2 moves away to one side; when the bidirectional threaded rod 5 rotates, the two moving blocks 6 move oppositely under the action of the bidirectional threads, and the two connecting rods 8 rotate along with the bidirectional threaded rod, so that the top plate 9 and the ejector rods 12 on the top plate 9 move upwards, and the molded plastic part is ejected; because the upper end of the connecting rod 8 is hinged with the top plate 9 through the sliding block 11, after the motor 4 starts to operate, the connecting rod 8 firstly moves to the tail end of the sliding groove 10 along the sliding groove 10 under the action of the moving block 6, and then can start to rotate to eject the ejector rod 12, and at the moment, the moving die 2 is moved away by a certain distance, so that ejection of a molded plastic part cannot be influenced.
Be equipped with in the lateral wall in chamber 3 of moulding plastics and be used for adjusting the accuse temperature pipe 20 of the chamber 3 temperature of moulding plastics, before moulding plastics, carry heat sources such as hot water or hot-blast in the accuse temperature pipe 20 earlier, preheat the chamber 3 of moulding plastics, make it maintain on certain temperature, prevent the too early cooling shaping of molten material, make the material of injecting into before and after quality problems such as fault appear, the back of accomplishing of moulding plastics, carry cold sources such as cold water or air conditioning to accuse temperature pipe 20 in, cool off the chamber 3 of moulding plastics, accelerate the shaping speed of material, improve the shaping efficiency.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.

Claims (5)

1. An injection mold comprises a fixed mold and a movable mold movably connected with the fixed mold, wherein an injection molding cavity for molding molten plastic is arranged in the fixed mold, and an injection molding hole for injection molding is formed in the movable mold; a demoulding device used for ejecting a molded plastic part is arranged below the injection molding cavity and comprises a motor arranged on one side of the fixed die, an output shaft of the motor is fixedly connected with a bidirectional threaded rod through a coupler, and one end of the bidirectional threaded rod, which is far away from the motor, is connected with the inner wall of the fixed die through a bearing; threaded connection has the movable block of two symmetries on the two-way threaded rod, and the upper end of two movable blocks all articulates there is the connecting rod, and the upper end and a roof of two connecting rods are articulated, its characterized in that: the top plate is provided with an ejector rod for ejecting a molded plastic part, and the bottom of the injection molding cavity is provided with a through hole for ejecting the ejector rod;
two first bevel gears are fixed at two ends of the bidirectional threaded rod, a transmission rod is arranged above the first bevel gears, and second bevel gears are fixed at two ends of the transmission rod and meshed with the first bevel gears; a driven rod is arranged above the transmission rod, a third bevel gear meshed with the second bevel gear is arranged at one end of the driven rod, and a supporting rod is fixedly connected to the other end of the driven rod after penetrating through the inner wall of the fixed die; the upper end of the supporting rod is hinged with the movable die.
2. An injection mold according to claim 1, characterized in that: two sliding grooves are symmetrically formed in the lower end face of the top plate, sliding blocks are connected in the sliding grooves in a sliding mode, and the upper end of the connecting rod is hinged to the sliding blocks.
3. An injection mold according to claim 2, characterized in that: and a temperature control pipe for adjusting the temperature of the injection molding cavity is arranged in the side wall of the injection molding cavity.
4. An injection mold according to claim 3, characterized in that: and the bidirectional threaded rod is provided with a limiting block for preventing the moving block from slipping.
5. An injection mould according to any one of claims 1, 2, 3 or 4, characterized in that: and a buffer spring is fixed at the lower end of the ejector rod.
CN201811471958.3A 2018-12-04 2018-12-04 Injection mould Active CN109605682B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811471958.3A CN109605682B (en) 2018-12-04 2018-12-04 Injection mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811471958.3A CN109605682B (en) 2018-12-04 2018-12-04 Injection mould

Publications (2)

Publication Number Publication Date
CN109605682A CN109605682A (en) 2019-04-12
CN109605682B true CN109605682B (en) 2021-02-05

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Application Number Title Priority Date Filing Date
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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110121140B (en) * 2019-05-11 2020-11-17 苏州晴朗工业科技有限公司 Injection mold for producing single-lug head strip cover of earphone and production method thereof
CN110154342A (en) * 2019-06-06 2019-08-23 东莞市正瑞五金有限公司 A kind of limit assembly in plastic mould use
CN110239034B (en) * 2019-07-22 2021-03-23 台山市星阳塑料制品有限公司 Early demolding mechanism of injection mold and production method of injection mold
CN110509503A (en) * 2019-09-09 2019-11-29 李杰鹏 Injection mold for pipeline production
CN111300798A (en) * 2019-12-06 2020-06-19 吴达浩 Blow molding equipment for blow molding container
CN111906279A (en) * 2020-08-10 2020-11-10 马鞍山市兴隆铸造有限公司 Casting equipment capable of continuously working

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947435A1 (en) * 1978-11-27 1980-06-04 Lorenzin Ind Mecc PRESS WITH ROTATING HEAD, IN PARTICULAR FOR MOLDING THERMOPLASTIC MATERIALS BY INJECTING OR. FOR INJECTION MOLDING SUCH MATERIALS
EP1277559A1 (en) * 2001-07-19 2003-01-22 Sandretto Industrie S.P.A. Method and mould clamping press for injection moulding machines
CN206812301U (en) * 2017-06-17 2017-12-29 谢伟伟 A kind of lampblack absorber mould of automatic demoulding
CN207325905U (en) * 2017-08-23 2018-05-08 烟台精锐模具有限公司 A kind of hardware dies demolding structure
CN207327465U (en) * 2017-05-12 2018-05-08 台州宽源家居有限公司 A kind of easily demoulding efficient injection mold

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947435A1 (en) * 1978-11-27 1980-06-04 Lorenzin Ind Mecc PRESS WITH ROTATING HEAD, IN PARTICULAR FOR MOLDING THERMOPLASTIC MATERIALS BY INJECTING OR. FOR INJECTION MOLDING SUCH MATERIALS
EP1277559A1 (en) * 2001-07-19 2003-01-22 Sandretto Industrie S.P.A. Method and mould clamping press for injection moulding machines
CN207327465U (en) * 2017-05-12 2018-05-08 台州宽源家居有限公司 A kind of easily demoulding efficient injection mold
CN206812301U (en) * 2017-06-17 2017-12-29 谢伟伟 A kind of lampblack absorber mould of automatic demoulding
CN207325905U (en) * 2017-08-23 2018-05-08 烟台精锐模具有限公司 A kind of hardware dies demolding structure

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