CN106945242B - Two-plate type mold locking device - Google Patents
Two-plate type mold locking device Download PDFInfo
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- CN106945242B CN106945242B CN201710104146.4A CN201710104146A CN106945242B CN 106945242 B CN106945242 B CN 106945242B CN 201710104146 A CN201710104146 A CN 201710104146A CN 106945242 B CN106945242 B CN 106945242B
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- band
- assembly
- oil cylinder
- mold locking
- type brake
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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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/26—Mechanisms or devices for locking or opening dies
- B22D17/266—Mechanisms or devices for locking or opening dies hydraulically
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a two-plate type mold locking device, which comprises a band-type brake assembly, a fixed mold plate, a pull rod, a movable mold plate and a mold locking oil cylinder assembly, wherein the fixed mold plate is arranged on the fixed mold plate; the locking cylinder assembly is fixed on one side of the movable mould plate, the band-type brake assembly is clamped on the locking cylinder assembly, and the band-type brake assembly is matched with the band-type brake at the other end of the pull rod; an elastic piece is arranged between the band-type brake assembly and the die locking oil cylinder assembly, a gap is arranged at a clamping position between the band-type brake assembly and the die locking oil cylinder assembly, and a gap is arranged between an inner tooth of the band-type brake assembly and an outer tooth of the pull rod; after the demolding of the mold locking device is completed, the right end face of the band-type brake assembly is not contacted with the left end face of the mold locking oil cylinder assembly. In the invention, because the elastic piece in a compressed state has a thrust effect on the band-type brake component and the mode locking oil cylinder component all the time, when the mode locking device is completely demoulded, the contact end surfaces between the band-type brake component and the mode locking oil cylinder component are separated; therefore, the mechanical impact of the high-speed brake can be reduced, and the abrasion caused by direct scraping with the end face of the mode locking piston when the brake component is opened can be prevented.
Description
Technical Field
The invention relates to a mold locking device, in particular to a two-plate mold locking device applied to injection molding equipment and die casting molding equipment.
Background
At present, in the industries of plastic processing, metal die casting and rubber processing, two-plate type (called two-plate type for short) mode locking devices used for injection molding equipment and die casting molding equipment are mostly adopted. The two-plate type mode locking device is widely applied due to the simple and compact structure and easy use. The two-plate type mold locking device generally comprises a movable mold plate, a fixed mold plate, a pull rod, a mold locking oil cylinder, a band-type brake assembly and the like, wherein the pull rod is connected between the movable mold plate and the fixed mold plate and used for enabling the movable mold plate to move on the pull rod.
The existing two-plate type mold locking device can be divided into two types according to the setting positions of the mold locking oil cylinders: the first is set on the fixed die plate, the second is set on the movable die plate, the band-type brake components are designed on the movable die plate and realize the relative connection and disconnection of the movable die plate and the pull rod. The first middle mold locking oil cylinder is arranged on the fixed mold plate, the band-type brake components are arranged on the movable mold plate, synchronous operation of each group of band-type brake components is easy to realize, and the first middle mold locking oil cylinder is difficult to directly connect, install and maintain, so that the first middle mold locking oil cylinder is high in manufacturing cost and maintenance cost. The second mode is that the mode locking oil cylinder is arranged on the movable template, the pull rod can be completely fixed on the fixed template, the position of each group of band-type brake components can be independently and accurately adjusted through the respective mode locking oil cylinder, so that the accurate band-type brake is realized, the mode locking oil cylinder can be integrally installed and disassembled, and the manufacturing cost and the maintenance cost are low; however, when the band-type brake is opened and closed at high speed for a long time, the opening and closing of the band-type brake assembly can be directly scraped with the end face of the mode locking piston to cause abrasion; and when high-pressure oil is instantaneously fed into the mold locking oil cylinder, lateral force is generated, so that the mold locking piston moves obliquely, and the sealing surface is easy to wear and leak oil.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a two-plate type mode locking device, which mainly aims to reduce the mechanical impact of a high-speed band-type brake and prevent abrasion caused by direct scraping with the end face of a mode locking piston when a band-type brake component is opened. The invention provides a two-plate type mold locking device, and aims to solve the problem that the inclined movement of a mold locking piston is easy to cause abrasion and oil leakage of a sealing surface due to lateral force generated when high-pressure oil is instantaneously fed into a mold locking oil cylinder. The invention also aims to solve the problems that the existing two-half type band-type brake cannot be synchronized and has large mechanical impact because the band-type brake assembly of the two-plate type mode locking device is provided with the synchronizing mechanism
The invention adopts the following technical scheme:
the two-plate type mold locking device comprises a mold locking device, wherein the mold locking device comprises at least one band-type brake assembly, a fixed mold plate, at least one pull rod, a movable mold plate and at least one mold locking oil cylinder assembly, and each pull rod is provided with one band-type brake assembly and one mold locking oil cylinder assembly; the band-type brake assembly is connected to the die locking cylinder assembly in a clamping mode, and the band-type brake assembly is matched with the other end of the pull rod; an elastic piece is arranged between the band-type brake assembly and the die locking oil cylinder assembly, a clearance is arranged at a clamping position formed between the band-type brake assembly and the die locking oil cylinder assembly, and a clearance is arranged between an inner tooth of the band-type brake assembly and an outer tooth of the pull rod; after the demolding of the mold locking device is completed, the right end face of the band-type brake assembly is not contacted with the left end face of the mold locking oil cylinder assembly.
Preferably, a guide member is further arranged between the band-type brake assembly and the mode locking cylinder assembly, one end of the elastic member is fixed to the band-type brake assembly, the other end of the elastic member is fixedly connected with one end of the guide member, and the other end of the guide member is matched with the mounting hole of the mode locking cylinder assembly.
Preferably, the mode locking cylinder assembly comprises a mode locking cylinder body and a mode locking piston assembly, the mode locking cylinder body is fixed on the movable mould plate, the mode locking piston assembly is matched with the upper end and the lower end of the band-type brake assembly in a clamping mode, the mode locking piston assembly is sleeved on the pull rod, the mode locking cylinder body is sleeved on the mode locking piston assembly, a release cavity is arranged on the mode locking cylinder body and is connected with a pressure oil source, a mode locking cavity is arranged between the mode locking cylinder body and the mode locking piston assembly and is connected with an oil outlet, and the mode locking piston assembly is connected with the pull rod in a sliding mode.
Preferably, the mold locking cylinder assembly further comprises a mold locking cylinder front cover, one side of the mold locking cylinder front cover is fixed on the movable mold plate, the other side of the mold locking cylinder front cover is fixedly connected with the mold locking cylinder body, two anti-rotation guide rods are arranged between the mold locking cylinder front cover and the mold locking piston assembly, and the two anti-rotation guide rods are respectively located on different sides of the pull rod.
Preferably, high-pressure damping holes symmetrical to two sides of the pull rod are formed in the front cover of the mold locking cylinder, and the high-pressure damping holes are communicated with the mold locking cavity.
Preferably, the number of the pull rods, the band-type brake assembly and the mode locking cylinder assembly is 4, and the four pull rods are respectively positioned at four corners of the movable die plate and the fixed die plate.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention provides a two-plate type mold locking device, wherein an elastic piece is arranged between a band-type brake assembly and a mold locking oil cylinder assembly, a clearance is arranged at a clamping position formed between the band-type brake assembly and the mold locking oil cylinder assembly, and a clearance is arranged between an inner tooth of the band-type brake assembly and an outer tooth of a pull rod; because the elastic piece in a compression state has a thrust action on the band-type brake assembly and the mode locking oil cylinder assembly all the time, after the mode locking device is released, the contact end surfaces between the band-type brake assembly and the mode locking oil cylinder assembly are separated; therefore, the mechanical impact of the high-speed brake can be reduced, and the abrasion caused by direct scraping with the end face of the mode locking piston when the brake component is opened can be prevented.
(2) The two-plate type mode locking device provided by the invention is characterized in that a guide piece is further arranged between the band-type brake assembly and the mode locking cylinder assembly, and the guide piece has a guiding and supporting function on the movement of the band-type brake assembly.
(3) The invention provides a two-plate type mold locking device, wherein two anti-rotation guide rods are arranged between a front cover of a mold locking cylinder and a mold locking piston assembly, the two anti-rotation guide rods can improve the moving guide precision, and the two anti-rotation guide rods also have the function of preventing the piston assembly from turning in the mold opening and closing process of the mold locking device; the two anti-rotation guide rods are symmetrical about the axis of the pull rod, so that the stress balance of the anti-rotation guide rods is guaranteed.
(4) The invention provides a two-plate type mold locking device, wherein a front cover of a mold locking oil cylinder is internally provided with high-pressure damping holes which are symmetrical with respect to two sides of a pull rod, and the high-pressure damping holes are communicated with a mold locking cavity; the oil inlet balance can be realized in the high-pressure process of the mold locking device, and the mold locking piston assembly is not easy to deflect when being moved by the oil inlet balance thrust, so that on one hand, various wearing and tearing can be reduced, the service lives of various sealing elements and oil cylinder bodies can be prolonged, and on the other hand, the problem that the sealing surface is easy to wear and leak oil due to the inclined movement of the mold locking piston caused by the lateral force generated when the mold locking oil cylinder instantaneously advances high-pressure oil can be solved to a certain extent.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings. Specific embodiments of the present invention are given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of a two-plate mold locking device according to the present invention;
FIG. 2 is a front view of a two plate mold clamping device of FIG. 1;
FIG. 3 is a cross-sectional view B-B in FIG. 2;
FIG. 4 is an enlarged view at b in FIG. 3;
FIG. 5 is a cross-sectional view of C-C in FIG. 2;
FIG. 6 is an enlarged view at c in FIG. 5;
FIG. 7 is a schematic illustration of the band-type brake assembly of FIG. 1;
FIG. 8 is a cross-sectional view A-A of FIG. 2;
fig. 9 is an enlarged view at a in fig. 8.
In the figure: the fixed die plate 1, the pull rod 2, the movable die plate 3, the die locking cylinder assembly 4, the die locking cylinder front cover 41, the high-pressure damping hole 411, the die locking cylinder body 42, the die locking piston 43, the anti-rotation guide rod 44, the demolding cavity 45, the die locking cavity 46, the die locking piston rod 47, the band-type brake assembly 5, the band-type brake supporting seat limiting plate 51, the band-type brake supporting seat 52, the band-type brake 53, the driving piece 54, the mounting seat 55, the synchronous gear 56, the synchronous rack 57, the guide piece 58, the elastic piece 59 and the die 6.
Detailed Description
The invention will be further described with reference to specific embodiments shown in fig. 1 to 9.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 4, 8 and 9, the invention provides a two-plate type mold locking device, which comprises a mold locking device, wherein the mold locking device comprises at least one band-type brake assembly 5, a fixed mold plate 1, at least one pull rod 2, a movable mold plate 3 and at least one mold locking oil cylinder assembly 4, and each pull rod 2 is provided with one band-type brake assembly 5 and one mold locking oil cylinder assembly 4; the fixed die plate 1 and the movable die plate 3 are connected through the pull rod 2, one end of the pull rod 2 is fixed on the fixed die plate 1, pull rod holes are coaxially formed in the movable die plate 3, the die locking cylinder assembly 4 and the band-type brake assembly 5, the other end of the pull rod 2 penetrates through the pull rod holes, and the movable die plate 3 is fixedly fixed on the pull rod 2 in a sliding manner; the locking cylinder assembly 4 is fixed on one side of the movable template 3, the band-type brake assembly 5 is connected to the locking cylinder assembly 4 in a clamping mode, and the band-type brake assembly 5 and the other end of the pull rod 2 form band-type brake cooperation; an elastic piece 59 is arranged between the band-type brake assembly 5 and the die locking oil cylinder assembly 4, a clearance is arranged at a clamping position formed between the band-type brake assembly 5 and the die locking oil cylinder assembly 4, and a clearance is arranged between an inner tooth of the band-type brake assembly 5 and an outer tooth of the pull rod 2; after the demolding of the mold locking device is completed, the right end face of the band-type brake assembly 5 is not contacted with the left end face of the mold locking cylinder assembly 4. The gap is designed to ensure that a movable space is provided between the band-type brake support seat 52, the two band-type brakes 53 and the mode locking piston assembly. The mold 6 is located between the movable mold plate 3 and the fixed mold plate 1, the mold 6 comprises a male mold and a female mold, the male mold is arranged on the movable mold plate 3, the female mold is arranged on the fixed mold plate 1, and the male mold corresponds to the female mold.
In this embodiment, when the right end face of the band-type brake assembly 5 contacts the left end face of the mode locking cylinder assembly 4, the elastic member 59 is in a compressed state, and the elastic member 59 may be designed as a compression spring; because the clearance is reserved between the band-type brake assembly 5 and the mold locking oil cylinder assembly 4, after the demolding of the mold locking device is completed, the elastic piece 59 in a compressed state always has a thrust effect on the band-type brake assembly 5 and the mold locking oil cylinder assembly 4, so that the contact end surfaces of the band-type brake assembly 5 and the mold locking oil cylinder assembly 4 are separated, and friction-free abrasion of the band-type brake assembly 5 on the end surfaces of the mold locking oil cylinder assembly 4 in the process of opening the band-type brake is realized.
Further, as shown in fig. 4, a guide member 58 is further disposed between the band-type brake assembly 5 and the mold locking cylinder assembly 4, one end of the elastic member 59 is fixed to the band-type brake assembly 5, the other end of the elastic member 59 is fixedly connected with one end of the guide member 58, and the other end of the guide member 58 is matched with the mounting hole of the mold locking cylinder assembly 4. Wherein the guide member 58 has a guide supporting function for the movement of the band-type brake assembly 5.
Further, as shown in fig. 5 and 6, the mold locking cylinder assembly 4 includes a mold locking cylinder body 42 and a mold locking piston assembly, the mold locking cylinder body 42 is fixed on the movable mold plate 3, the mold locking piston assembly is in clamping fit with the upper and lower ends of the band-type brake assembly 5, the mold locking piston assembly is sleeved on the pull rod 2, the mold locking cylinder body 42 is sleeved on the mold locking piston assembly, a release mold cavity 45 is arranged on the mold locking cylinder body 42 and is connected with a pressure oil source, a mold locking cavity 46 is arranged between the mold locking cylinder body 42 and the mold locking piston assembly and is connected with an oil outlet, and the mold locking piston assembly is in sliding connection with the pull rod 2 and the mold locking piston assembly and the mold locking cylinder body 42. It can be appreciated that the mold locking piston assembly includes a mold locking piston 43 and a mold locking piston rod 47, the mold locking piston rod 47 is sleeved on the pull rod 2, the mold locking piston 43 is fixed on the mold locking piston rod 47, and the mold locking piston rod 47 is in sliding connection with the pull rod 2.
Further, as shown in fig. 5 and 6, the mold locking cylinder assembly 4 further includes a mold locking cylinder front cover 41, one side of the mold locking cylinder front cover 41 is fixed on the movable mold plate 3, the other side of the mold locking cylinder front cover 41 is fixedly connected with the mold locking cylinder body 42, two anti-rotation guide rods 44 are disposed between the mold locking cylinder front cover 41 and the mold locking piston assembly, the two anti-rotation guide rods 44 are respectively located at different sides of the pull rod 2, and the two anti-rotation guide rods 44 are preferably symmetrical with respect to the axis of the pull rod 2. The two anti-rotation guide rods 44 can improve the moving guide precision, and also have the anti-rotation function in the mold opening and closing process of the mold locking device; the symmetry of the two anti-rotation guide rods 44 about the axis of the pull rod 2 is beneficial to ensuring the stress balance of the anti-rotation guide rods 44. It will be appreciated that the number of the anti-rotation bars 44 may be one or more, and it is best to configure two sets of horizontal symmetry and one set of vertical direction.
Further, as shown in fig. 5 and 6, a high-pressure damping hole 411 is provided in the front cover 41 of the mold locking cylinder, which is symmetrical with respect to both sides of the pull rod 2, and the high-pressure damping hole 411 is communicated with the mold locking cavity 46. The oil inlet balance can be realized in the high-pressure process of the mold locking device, and the mold locking piston assembly is not easy to deflect when being moved by the oil inlet balance thrust, so that on one hand, various wearing can be reduced, the service lives of various sealing elements and oil cylinder bodies can be prolonged, and on the other hand, the problem that the sealing surface is easy to wear and leak oil due to the inclined movement of the mold locking piston 43 caused by the lateral force generated when the mold locking oil cylinder body 42 instantaneously advances high-pressure oil can be solved to a certain extent.
Further, as shown in fig. 7 to 9, the band-type brake assembly 5 is a two-half band-type brake assembly, the band-type brake assembly 5 includes two band-type brakes 53, a driving member 54, at least one band-type brake support seat 52, at least one of two ends of the band-type brake 53 is provided with a synchronization mechanism and the band-type brake support seat 52, the band-type brake support seat 52 is in clamping fit with the two band-type brakes 53, the synchronization mechanism includes two synchronization racks 57 and a synchronization gear 56, the synchronization gear 56 is mounted on the band-type brake support seat 52, the synchronization racks 57 penetrate through the two band-type brakes 53 and the band-type brake support seat 52, the two synchronization racks 57 are respectively fixed on one of the two band-type brakes 53, and the synchronization gear 56 is connected with the two synchronization racks 57; the output shaft of the driving member 54 is connected to at least one synchronous rack 57 in the synchronous mechanism, so that the two band-type brakes 53 are synchronously opened or closed.
In the above embodiment of the present invention, when the driving member 54 is connected to one of the synchronous mechanisms, since the moving directions of the two synchronous racks 57 are exactly opposite, the driving member can only be connected to one synchronous rack 57 of the synchronous mechanism; the synchronous mechanism is arranged on the two band-type brakes 53, the two synchronous racks 57 are respectively fixed on one of the two band-type brakes 53, when the driving piece 54 drives one synchronous rack 57 in the synchronous mechanism to move, the synchronous rack 57 is fixedly connected with one of the two band-type brakes 53, so that the band-type brakes 53 move in the same direction along with the synchronous rack 57, and the other band-type brake 53 moves in the opposite direction along with the other synchronous rack under the transmission action of the gear rack, so that the stable synchronous brake opening and band-type brakes of the two band-type brakes 53 are realized, the efficiency is high, the reliability is strong, and the impact caused by the asynchronism can be reduced. Meanwhile, the synchronous rack 57 also has guiding and supporting functions in the process of opening the band-type brake by the two band-type brakes 53. It should be understood that when only one of the two ends of the band-type brake 53 is provided with the synchronization mechanism, the other end may be connected by a guide rod or a guide rail, which is a common technical means in the art, and thus is easy to implement.
Further, as shown in fig. 7, two ends of the band-type brake 53 are respectively provided with the synchronization mechanism and the band-type brake supporting seat 52, and the band-type brake supporting seat 52 is located between the two band-type brakes 53; the band-type brake assembly 5 further comprises a mounting seat 55, wherein an output shaft of the driving piece 54 is fixedly connected with two synchronous racks 57 through the mounting seat 55, and the two synchronous racks 57 are respectively positioned in the two synchronous mechanisms; the two ends of the band-type brake 53 are respectively provided with one synchronous mechanism, and the two ends of the band-type brake 53 are synchronously driven by the driving piece 54, so that the synchronous opening and closing of the two band-type brakes 53 are more stable and reliable, the efficiency is high, and the impact caused by the asynchronous movement is further reduced. The synchronous driving of the two band-type brakes 53 can accelerate the speed of opening the band-type brakes of the band-type brake assembly 5; according to the kinetic energy theorem and the momentum theorem, when the brake opening speeds of the brake assemblies 5 are the same, it is assumed that the two brakes 53 move in opposite directions and have the same speed, and the brake is stationary due to collision, so that the generated impact heat is minimal.
Further, as shown in fig. 7, the output shaft of the driving member 54 is connected with two synchronous racks 57 in a staggered manner through the mounting seat 55, the two synchronous racks 57 are respectively located in two different synchronous mechanisms, and the two synchronous racks 57 are respectively close to two sides of the band-type brake 53; the staggered connection arrangement can enable the driving piece 54 to drive the band-type brake 53, and the two sides of the band-type brake 53 along the direction of the pull rod 2 are respectively provided with a band-type brake force or a brake opening force with the same size and direction, so that the stable and reliable brake opening process of the two band-type brakes 53 is further realized, and the impact caused by the asynchronization is further reduced.
Further, as shown in fig. 1, in order to make the mold opening and closing, mold locking and demolding processes of the mold locking device more balanced and stable, the number of tie rods 2, band-type brake assemblies 5 and mold locking cylinder assemblies 4 is 4, and four tie rods 2 are respectively positioned at four corners of the movable mold plate 3 and the fixed mold plate 1.
Further, as shown in fig. 7, the mounting seat 55 is a rhombic plate, so that the material cost of the mounting seat 55 is reduced, and the mounting space of other components of the mold locking device is more free and convenient.
Further, as shown in fig. 7 to 9, the band-type brake assembly 5 further includes two band-type brake support seat limiting plates 51, two band-type brake support seat limiting plates 51 are respectively disposed at two ends of the band-type brake assembly 5, the band-type brake support seat limiting plates 51 are fixedly connected with the mode locking piston 43, and two band-type brake support seat limiting plates 51 are respectively connected with two band-type brake support seats 52 in a clamping manner.
Further, the driving member 54 may be configured as a hydraulic cylinder, a pneumatic cylinder, or a motor.
The working process of the two-plate type mold locking device of the invention is described below with reference to the specific embodiments 1 to 5:
(1) Demolding process of the mold locking device: when pressure oil is introduced into the demolding cavity 45, the mold locking cavity 46 returns oil, and the mold locking piston 43 moves rightwards and drives the band-type brake supporting seat limiting plate 51 to move rightwards; because the band-type brake supporting seat limiting plate 51 is provided with a clamping position matched with the clamping position at the right end of the band-type brake supporting seat 52, the band-type brake supporting seat limiting plate 51 drives the band-type brake supporting seat 52 to move rightwards; because the clamping position at the left end of the band-type brake supporting seat 52 can form clamping fit with the left end surfaces of the two band-type brakes 53, the band-type brake supporting seat 52 drives the band-type brakes 53 to move rightwards; because the right tooth surfaces of the inner teeth of the two band-type brakes 53 are contacted with the left tooth surfaces of the outer teeth of the pull rod 2 to form clamping fit, the right movement can not be realized, and the mold locking oil cylinder 42 drives the movable mold plate 3 to move leftwards to finish the demolding process;
(2) And (3) a mode locking process of the mode locking device: when pressure oil is introduced into the locking cavity 46, the demolding cavity 45 returns oil, the locking piston 43 moves leftwards and directly pushes the two band-type brakes 53 to move leftwards, the left tooth surfaces of the inner teeth of the two band-type brakes 53 are contacted with the right tooth surfaces of the outer teeth of the pull rod 2 to form clamping fit, and the left tooth surfaces cannot move any more, so that the movable mold plate 3 is pushed to move rightwards by the front cover 41 of the locking cylinder, and the mold 6 is pressed to finish the locking process.
The invention provides a two-plate type mold locking device, wherein an elastic piece is arranged between a band-type brake assembly and a mold locking oil cylinder assembly, a clearance is arranged at a clamping position formed between the band-type brake assembly and the mold locking oil cylinder assembly, and a clearance is arranged between an inner tooth of the band-type brake assembly and an outer tooth of a pull rod; because the elastic piece in a compression state has a thrust action on the band-type brake assembly and the mode locking oil cylinder assembly all the time, after the mode locking device is released, the contact end surfaces between the band-type brake assembly and the mode locking oil cylinder assembly are separated; therefore, the mechanical impact of the high-speed brake can be reduced, and the abrasion caused by direct scraping with the end face of the mode locking piston when the brake component is opened can be prevented.
The invention provides a two-plate type mold locking device, wherein two anti-rotation guide rods are arranged between a front cover of a mold locking cylinder and a mold locking piston assembly, the two anti-rotation guide rods can improve the moving guide precision, and the two anti-rotation guide rods also have the function of preventing the piston assembly from turning in the mold opening and closing process of the mold locking device; the two anti-rotation guide rods are symmetrical about the axis of the pull rod, so that the stress balance of the anti-rotation guide rods is guaranteed.
The invention provides a two-plate type mold locking device, wherein a front cover of a mold locking oil cylinder is internally provided with high-pressure damping holes which are symmetrical with respect to two sides of a pull rod, and the high-pressure damping holes are communicated with a mold locking cavity; the oil inlet balance can be realized in the high-pressure process of the mold locking device, and the mold locking piston assembly is not easy to deflect when being moved by the oil inlet balance thrust, so that on one hand, various wearing and tearing can be reduced, the service lives of various sealing elements and oil cylinder bodies can be prolonged, and on the other hand, the problem that the sealing surface is easy to wear and leak oil due to the inclined movement of the mold locking piston caused by the lateral force generated when the mold locking oil cylinder instantaneously advances high-pressure oil can be solved to a certain extent.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way; those skilled in the art will readily appreciate that the present invention may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present invention are possible in light of the above teachings without departing from the scope of the invention; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the present invention.
Claims (3)
1. The utility model provides a two board-like mode locking devices, includes mode locking device, its characterized in that: the mold locking device comprises at least one band-type brake assembly (5), a fixed template (1), at least one pull rod (2), a movable template (3) and at least one mold locking oil cylinder assembly (4), wherein each pull rod (2) is provided with one band-type brake assembly (5) and one mold locking oil cylinder assembly (4); the fixed die plate (1) and the movable die plate (3) are connected through the pull rod (2), the die locking oil cylinder assembly (4) is fixed on one side of the movable die plate (3), the band-type brake assembly (5) is connected to the die locking oil cylinder assembly (4) in a clamping mode, and the band-type brake assembly (5) is matched with the other end of the pull rod (2) in a band-type brake mode; an elastic piece (59) is arranged between the band-type brake assembly (5) and the die locking oil cylinder assembly (4), a clearance is arranged at a clamping position formed between the band-type brake assembly (5) and the die locking oil cylinder assembly (4), and a clearance is arranged between an inner tooth of the band-type brake assembly (5) and an outer tooth of the pull rod (2); after the demolding of the mold locking device is finished, the right end face of the band-type brake assembly (5) is not contacted with the left end face of the mold locking oil cylinder assembly (4);
the mold locking oil cylinder assembly (4) comprises a mold locking oil cylinder body (42) and a mold locking piston assembly, the mold locking oil cylinder body (42) is fixed on the movable mold plate (3), the mold locking piston assembly is matched with the upper end and the lower end of the band-type brake assembly (5) in a clamping mode, the mold locking piston assembly is sleeved on the pull rod (2), the mold locking oil cylinder body (42) is sleeved on the mold locking piston assembly, a demolding cavity (45) is arranged on the mold locking oil cylinder body (42) and is connected with a pressure oil source, a mold locking cavity (46) is arranged between the mold locking oil cylinder body (42) and the mold locking piston assembly and is connected with an oil outlet, and the mold locking piston assembly is in sliding connection with the pull rod (2) and the mold locking piston assembly and the mold locking oil cylinder body (42);
the mold locking oil cylinder assembly (4) further comprises a mold locking oil cylinder front cover (41), one side of the mold locking oil cylinder front cover (41) is fixed on the movable mold plate (3), the other side of the mold locking oil cylinder front cover (41) is fixedly connected with the mold locking oil cylinder body (42), two anti-rotation guide rods (44) are arranged between the mold locking oil cylinder front cover (41) and the mold locking piston assembly, the two anti-rotation guide rods (44) are respectively positioned on different sides of the pull rod (2), and the two anti-rotation guide rods (44) are symmetrical with respect to the axis of the pull rod (2);
the front cover (41) of the mold locking oil cylinder is internally provided with high-pressure damping holes (411) which are symmetrical on two sides of the pull rod (2), and the high-pressure damping holes (411) are communicated with the mold locking cavity (46).
2. The two-plate mold locking device according to claim 1, wherein: a guide piece (58) is further arranged between the band-type brake assembly (5) and the die locking oil cylinder assembly (4), one end of the elastic piece (59) is fixed to the band-type brake assembly (5), the other end of the elastic piece (59) is fixedly connected with one end of the guide piece (58), and the other end of the guide piece (58) is matched with a mounting hole of the die locking oil cylinder assembly (4).
3. The two-plate mold locking device according to claim 1, wherein: the number of the pull rods (2) and the band-type brake assemblies (5) and the number of the mode locking oil cylinder assemblies (4) are all 4, and the four pull rods (2) are respectively located at four corners of the movable die plate (3) and the fixed die plate (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710104146.4A CN106945242B (en) | 2017-02-24 | 2017-02-24 | Two-plate type mold locking device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710104146.4A CN106945242B (en) | 2017-02-24 | 2017-02-24 | Two-plate type mold locking device |
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| CN106945242A CN106945242A (en) | 2017-07-14 |
| CN106945242B true CN106945242B (en) | 2023-08-08 |
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| CN201710104146.4A Active CN106945242B (en) | 2017-02-24 | 2017-02-24 | Two-plate type mold locking device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107932853A (en) * | 2017-11-07 | 2018-04-20 | 周飞 | Double-plate clamping apparatus |
| CN107972242B (en) * | 2017-11-30 | 2023-11-14 | 海天塑机集团有限公司 | Mold opening method and driving system for spring mold of two-plate injection molding machine |
| CN109228205A (en) * | 2018-10-26 | 2019-01-18 | 广东福能精密机械有限公司 | A kind of two-plate injection molding machine |
| CN110239045A (en) * | 2019-06-10 | 2019-09-17 | 海天塑机集团有限公司 | A kind of piston of injection moulding machine mode-locking oil cylinder and pull rod bindiny mechanism and its injection moulding machine mode-locking oil cylinder |
| CN111391186A (en) * | 2020-04-17 | 2020-07-10 | 东莞颠覆产品设计有限公司 | Mold locking device |
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Effective date of registration: 20180212 Address after: 511340 Guangzhou Province, Zengcheng City automobile industry base, Cheung Road, No. 9 Applicant after: BORCH MACHINERY Co.,Ltd. Address before: 511300 Guangzhou Province, Zengcheng City automobile industry base, Cheung Road, No. 9 Applicant before: BORCH MACHINERY Co.,Ltd. Applicant before: Ye Tingbi |
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