CN112277254B - Injection mold and ejection mechanism and ejection method thereof - Google Patents
Injection mold and ejection mechanism and ejection method thereof Download PDFInfo
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- CN112277254B CN112277254B CN201910665107.0A CN201910665107A CN112277254B CN 112277254 B CN112277254 B CN 112277254B CN 201910665107 A CN201910665107 A CN 201910665107A CN 112277254 B CN112277254 B CN 112277254B
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- ejection
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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
- B29C45/26—Moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
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- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides an injection mold, an ejection mechanism and an ejection method thereof, wherein the ejection mechanism comprises a first ejection part and a second ejection part, and the first ejection part is driven by the second ejection part to perform ejection movement in a mode of adjusting the ejection direction.
Description
Technical Field
The invention relates to the field of injection molding, in particular to an injection mold of a lens, an ejection mechanism and an ejection method of the injection mold.
Background
With the rapid development of the intelligent level, the optical lens is applied to the automobile safety field and the monitoring field in a large amount, and the requirement of people on the imaging quality of the lens is higher and higher. The lens processing precision is one of the important factors determining the imaging quality of the lens, and the processing precision is influenced by an injection mold in the process of injection molding the lens. The service life of the existing injection mold is generally short due to the influence of the assembly precision and the structural design of the existing injection mold.
Further, the conventional injection mold comprises a first mold 1 'and a second mold 2', wherein the first mold 1 'and the second mold 2' are configured to be matched with each other, and a plurality of lenses 3 'are obtained by injection molding, wherein the first mold 1' is relatively movable with respect to the second mold 2 'to allow the lenses 3' to be taken out.
The first mold 1 'includes an ejection mechanism 10', a movable mold plate 20 'and a base portion 30', wherein the injection mold employs an integrated ejection mechanism 10 ', and the ejection mechanism 10' is movably driven by the base portion 30 'to be driven to reciprocate toward the movable mold plate 20' for performing an ejection motion.
The movable mold plate 20 ' comprises a movable mold core 21 ', a movable mold plate 22 ' and a bushing 23 ', wherein the movable mold core 21 ' is pre-embedded in the movable mold plate 22 ' through the bushing 23 ', and the ejection mechanism 10 ' is movably connected to the movable mold plate 22 '. The bush 23 ' keeps the movable-side die core 21 ' positioned on the movable-side die plate 22 '.
It is worth mentioning that one end of the ejector mechanism 10 'is lockingly coupled by the movable side die core 21'. The bushing 23 ' has an ejecting space 100 ', wherein the ejecting space 100 ' allows the movable side mold core 21 ' to reciprocate, when one end of the ejecting mechanism 10 ' drives the movable side mold core 21 ' to perform an ejecting action, the lens 3 ' driven by the movable side mold core 21 ' is ejected, wherein the movable side mold core 21 ' is ejected from an initial position to an ejecting position to complete the ejecting action.
After the lens 3 'is ejected, the ejection mechanism 10' reaches the initial position from the ejection position to complete the reset operation. It is worth mentioning that the ejection mechanism 10' completes the ejection action and the reset action to realize the ejection motion.
The ejecting space 100 'allows the ejecting mechanism 10' to reciprocate to complete the ejecting motion.
The base portion 30 ' includes a bottom needle plate 31 ' and a surface needle plate 32 ', wherein the surface needle plate 32 ' is positioned to overlap the bottom needle plate 31 '. The ejecting mechanism 10 'is fixedly connected to the bottom pin plate 31' after extending into the surface pin plate 32 ', wherein the bottom pin plate 31' and the surface plate 32 'are driven to move towards the movable die plate 20' and then drive the ejecting mechanism 10 'to perform the ejecting motion towards the movable side die core 21'. It should be noted that the ejecting mechanism 10 ' is vertically retained by the movable mold plate 20 ' and the base portion 30 ', so that when the base portion 30 ' is driven to drive the ejecting mechanism 10 ' to perform the ejecting motion, the ejecting mechanism 10 ' returns after vertically moving toward the movable mold plate 20 ', thereby implementing the ejecting motion.
Furthermore, the needle board 32 'has a locking space 320', wherein one end of the ejector mechanism 10 'is accommodated in the locking space 320' and extends from the locking space 320 'upward and perpendicular to the needle board 32', and since the locking space 320 'is formed on the surface of the needle board 32', during the movement, the stress applied to the side wall of the needle board 32 'defining the locking space 320' is relatively large, and the deformation is easy to occur, so that the loss of the injection mold due to the deformation of the mold plate is relatively large.
Preferably, the injection mold comprises a carrier plate 40 ', wherein the carrier plate 40' defines an ejection channel 400 ', wherein the ejection channel 400' is in communication with the ejection space 100 'of the movable mold plate 20' and the outer space of the other side of the carrier plate 40 'to allow the ejection mechanism 10' to be limitedly accommodated in the ejection space 100 'through the ejection channel 400', and wherein the carrier plate 40 'is in limited accommodation of the ejection mechanism 10' and is disposed between the movable mold plate 20 'and the base portion 30'. The support plate 40 'is fixedly disposed, when the base portion 30' drives the ejecting mechanism 10 'to perform the ejecting motion, the support plate 40' limits the moving position of the base portion 30 'and maintains the moving direction of the ejecting mechanism 10'.
The second mold 2 ' comprises a fixed plate 51 ' and a fixed side plate 52 ', wherein the fixed plate 51 ' is disposed on the fixed side plate 52 ', and wherein the first mold 1 ' is driven to rise to close the fixed plate 51 ' and the fixed side plate 52 ' to allow the lens 3 ' to be injection molded. After the injection molding of the lens 3 ' is completed, the first mold 1 ' is separated from the second mold 2 ' to allow the ejection mechanism 10 ' to eject the lens 3 '.
The supporting plate 40 ' is kept at a certain distance from the base 30 ', wherein during the base 30 ' drives the ejecting mechanism 10 ' to perform the ejecting motion, the ejector mechanism 10 ' is vertically assembled with the noodle plate 32 ', and the noodle plate 32 ' is easily deformed.
When the ejecting mechanism 10 'is driven by the base portion 30' to move toward the movable mold plate 20 ', the ejecting mechanism 10' moves relatively vertically relative to the movable mold plate 20 ', the supporting plate 40' defines the ejecting channel 400 ', the ejecting mechanism 10' is allowed to reciprocate in the ejecting channel 400 ', and the ejecting space 100' of the movable mold plate 20 'allows the ejecting mechanism 10' to vertically perform the ejecting motion. Further, the movable die plate 22 ', the carrier plate 40', the bottom pin plate 31 'and the face pin plate 32' of the movable die plate 20 'are coaxially disposed to allow the ejecting mechanism 10' to vertically perform the ejecting motion.
It should be noted that, in the actual injection molding process, the bottom pin plate 31 'and the face pin plate 32' are driven by an injection molding machine to perform the ejecting motion, and move upward and translate, so as to drive the ejecting mechanism 10 'to move upward and translate, so as to drive the movable side mold core 21' to move upward and complete the ejecting motion. Because the ejector mechanism 10 ' passes through the surface needle plate 32 ' and is locked on the bottom needle plate 31 ', the friction between the ejector mechanism 10 ' and the movable side mold core 21 ' is increased in the moving process, and when the ejector mechanism 10 ' drives the movable side mold core 21 ' to move upwards, the friction between the movable side mold core 21 ' and the inner wall of the bush 23 ' is increased, which is easy to cause the damage of the injection mold.
After the ejecting mechanism 10 ' performs the ejecting action, the ejecting mechanism 10 ' is driven to return, thereby completing the ejecting motion of the ejecting mechanism 10 '.
Because the requirement of the injection molding mode on the assembly precision of the mold is high, the coaxiality among the movable side mold plate 22 ', the bottom needle plate 31 ', the face needle plate 32 ' and the bearing plate 40 ' is difficult to control, and further the verticality among the bushing 23 ', the movable side mold core 21 ' and the ejection mechanism 10 ' is difficult to guarantee, when the movable side mold plate 22 ', the bottom needle plate 31 ', the face needle plate 32 ' and the bearing plate 40 ' are not coaxial, the ejection mechanism 10 ' obliquely drives the movable side mold core 21 ' in the ejection movement process, so that the loss of the injection mold is large, and the damage is easy to occur. The injection mold has the defect of substantial inclination after being assembled, the friction between the movable side mold core 21 ' and the inner wall of the bush 23 ' in the actuation process of the ejection mechanism 10 ' is increased, and the service life of the mold is greatly shortened.
Therefore, it is an urgent need to solve the problem in the industry to improve the structure of the ejection mechanism 10' of the injection mold for lenses and prolong the service life of the mold.
Disclosure of Invention
An advantage of the present invention is to provide an injection mold, an ejection mechanism thereof, and an ejection method, wherein the injection mold employs an ejection mechanism that allows the ejection mechanism to perform an ejection motion in a manner that the ejection direction thereof can be adjusted when the ejection mechanism performs the ejection motion.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism and an ejection method thereof, wherein the injection mold includes an ejection mechanism, a movable platen, a carrier plate and a base portion, wherein the carrier plate is disposed between the movable carrier plate and the base portion, wherein one end of the ejection mechanism is fixedly connected to the base portion, wherein the ejection mechanism can be ejected with the ejection direction adjusted, and the base portion is prevented from deviating a certain distance from the movable platen, wherein the ejection mechanism can perform the ejection movement with the ejection direction adjusted, and mechanical loss caused by friction is reduced.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism thereof and an ejection method thereof, wherein the ejection mechanism is two-stage, wherein the ejection mechanism comprises a first ejection portion and a second ejection portion, wherein the first ejection portion is ejected by the second ejection portion and deflected relative to the second ejection portion, and wherein the first ejection portion is locked to the base portion such that the first ejection portion is not tilted at a certain angle due to the locked deflection of the second ejection portion from the base.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism thereof, and an ejection method thereof, wherein the first ejection portion and the second ejection portion are separately disposed, and the first ejection portion can perform an ejection motion in a manner of aligning the ejection direction with respect to the second ejection portion.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism thereof, and an ejection method thereof, in which the ejection mechanism is ejected in a manner selected from the group of types of self-driving and external-driving.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism and an ejection method thereof, wherein the ejection mechanism is driven by the base portion to perform an ejection motion, wherein the ejection mechanism has a relatively simple structure, and the ejection direction of the ejection mechanism is adjusted by the first ejection portion of the ejection mechanism moving relative to the second ejection portion.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism and an ejection method thereof, wherein the ejection mechanism performs a self-driven ejection motion, and the first ejection part is driven by the second ejection part to perform an ejection motion.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism and an ejection method thereof, wherein the ejection mechanism is magnetically driven or wind driven to perform the ejection motion.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism thereof, and an ejection method thereof, wherein the ejection direction of the first ejection part of the ejection mechanism is adjusted by shifting the first ejection part relative to the second ejection part.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism and an ejection method thereof, in which the first ejection portion and the second ejection portion of the ejection mechanism are separately attached, so that the first ejection portion can movably adjust the ejection direction relative to the second ejection portion, thereby preventing the base portion and the movable platen from being relatively displaced to cause wear of components of the injection mold during the ejection movement.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism and an ejection method thereof, wherein the ejection mechanism employs a flexible connection to allow the second ejection portion to be shifted relative to the first ejection portion.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism thereof and an ejection method thereof, wherein the ejection mechanism is separately connected to allow the second ejection portion to be shifted relative to the first ejection portion.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism thereof, and an ejection method thereof, wherein the ejection mechanism performs an ejection motion in a self-driven manner, and the first ejection portion is driven by the second ejection portion to perform the ejection motion.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism and an ejection method thereof, wherein the ejection mechanism is driven by the base portion to perform an ejection operation and a reset operation.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism thereof, and an ejection method thereof, in which the first ejection part and the second ejection part are flexibly connected to allow the second ejection part and the first ejection part to be relatively rotatable to adjust an inclination angle thereof.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism and an ejection method thereof, wherein the first ejection part further includes a flexible connecting end and a connecting shaft, wherein the flexible connecting end is disposed at the bottom of the connecting shaft and is flexibly connected to the second ejection part, wherein the second ejection part includes a limiting part and a fixed end, wherein the limiting part is disposed at one end of the fixed end, and wherein the limiting part limitedly receives the flexible connecting end to allow the connecting shaft of the second ejection part to rotate relative to the first ejection part to adjust an inclination angle thereof.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism and an ejection method thereof, in which the first ejection part and the second ejection part are separately provided, wherein the first ejection part is driven by the second ejection part to perform the ejection motion, and the first ejection part is allowed to shift relative to the second ejection part to maintain a preset ejection direction.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism thereof and an ejection method thereof, wherein the second ejection portion is fixedly received by the base portion.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism thereof, and an ejection method, wherein the second ejection part is magnetically driven by the first ejection part.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism thereof, and an ejection method, wherein the second ejection part is blown by the first ejection part in an air blowing manner to perform the ejection motion.
Another advantage of the present invention is to provide an injection mold, an ejection mechanism and an ejection method thereof, wherein the second ejection part is pushed by the first ejection part in a blowing manner and then returns to an original position in a suction manner to perform the ejection movement.
Additional advantages and features of the invention will be set forth in the detailed description which follows and in part will be apparent from the description, or may be learned by practice of the invention as set forth hereinafter.
In accordance with one aspect of the present invention, the foregoing and other objects and advantages are achieved in an ejector mechanism comprising:
a first ejection part; and
and the first ejection part is driven by the second ejection part to perform ejection movement in a manner of adjusting the ejection direction.
According to an embodiment of the present invention, the first ejecting portion is flexibly connected to the second ejecting portion, and the first ejecting portion is capable of performing an ejecting motion in a manner of aligning the ejecting direction with respect to the second ejecting portion.
According to an embodiment of the present invention, the first ejecting portion is provided separately from the second ejecting portion, and the first ejecting portion is capable of performing an ejecting motion in such a manner that the ejecting direction is adjusted with respect to the second ejecting portion.
According to one embodiment of the invention, the first ejector part comprises a core connecting rod and a flexible connecting part, wherein the core connecting rod is limitedly accommodated by the second ejector part through the flexible connecting part and allows the core connecting rod to universally rotate.
According to an embodiment of the present invention, the second ejection portion includes a base and a base cover, and has a receiving groove and a centering channel, wherein the base defines the receiving groove, wherein the base cover defines the centering channel, wherein the centering channel communicates the receiving groove with an external space, wherein the base and the base cover are lockingly held, wherein the flexible connecting portion is received in the receiving groove, and the core connecting rod extends outward from the centering channel and is limitedly deflected by the base cover.
According to an embodiment of the present invention, the flexible connecting portion is a sphere, wherein the core connecting rod extends from the sphere, and wherein the core connecting rod drives the sphere accommodated in the accommodating groove to align a certain angle.
According to an embodiment of the present invention, the first ejection part includes a core connecting rod and a magnetic element, wherein the magnetic element is magnetically driven by the second ejection part, wherein the core connecting rod is driven by the magnetic element.
According to an embodiment of the present invention, the second ejecting portion includes an electromagnet, an electromagnetic coil, and a power supply portion, wherein the electromagnetic coil is wound around the electromagnet, and the power supply portion is energized to the electromagnetic coil to drive the magnetic element to perform the reciprocating ejecting motion.
According to an embodiment of the invention, the first ejection part is wind-driven by the second ejection part.
According to one embodiment of the invention, the second ejection part is an air gun, wherein the second ejection part drives the first ejection part to be ejected in an air blowing manner, and wherein the second ejection part drives the first ejection part to return in an air sucking manner in a reversing manner.
According to one embodiment of the invention, the cross section of the bottom end of the first ejection portion is selected from the group of circular-like, rectangular-like types.
According to an embodiment of the present invention, the second ejecting portion is supportedly lifted to drive the first ejecting portion to perform an ejecting motion.
According to another aspect of the present invention, the present invention further provides an injection mold comprising:
a first die, wherein the first die further comprises:
a base portion;
the movable mould plate comprises a movable mould core, a movable bush, a bearing plate and a movable side mould plate, wherein the movable mould core is nestedly accommodated in the movable side mould plate by the movable bush, the movable side mould plate is arranged on one side of the bearing plate, and the base part is arranged on the other side of the bearing plate;
an ejection mechanism, wherein the ejection mechanism comprises a first ejection portion and a second ejection portion, wherein the first ejection portion is driven by the second ejection portion in an ejection direction adjustable manner to perform an ejection motion, wherein the base portion fixedly supports the second ejection portion, wherein the first ejection portion is lockingly connected to the movable core, wherein the first ejection portion drives the movable core in an ejection motion, and wherein the first ejection portion and the second ejection portion extend from the base portion to the movable core in two stages; and a second die, wherein the second die is relatively movable with respect to the movable-side die plate, and wherein the ejection mechanism allows the ejection movement when the second die is away from the movable-side die plate.
According to an embodiment of the present invention, the first ejecting portion is flexibly connected to the second ejecting portion, and the first ejecting portion is capable of performing an ejecting motion in a manner of aligning the ejecting direction with respect to the second ejecting portion.
According to an embodiment of the present invention, the first ejecting portion is provided separately from the second ejecting portion, and the first ejecting portion is capable of performing an ejecting motion in such a manner that the ejecting direction is adjusted with respect to the second ejecting portion.
According to an embodiment of the present invention, the first ejection part comprises a core connecting rod and a flexible connecting part, wherein the core connecting rod is limitedly accommodated by the second ejection part through the flexible connecting part and allows the core connecting rod to universally rotate.
According to an embodiment of the present invention, the second ejection portion includes a base and a base cover, and has a receiving groove and a centering channel, wherein the base defines the receiving groove, wherein the base cover defines the centering channel, wherein the centering channel communicates the receiving groove with an external space, wherein the base and the base cover are lockingly held, wherein the flexible connecting portion is received in the receiving groove, and the core connecting rod extends outward from the centering channel and is limitedly deflected by the base cover.
According to an embodiment of the present invention, the flexible connecting portion is a sphere, wherein the core connecting rod extends from the sphere, and wherein the core connecting rod drives the sphere accommodated in the accommodating groove to align a certain angle.
According to an embodiment of the present invention, the first ejector includes a core connecting rod and a magnetic element, wherein the magnetic element is magnetically driven by the second ejector, wherein the core connecting rod is driven by the magnetic element.
According to an embodiment of the present invention, the second ejecting portion includes an electromagnet, an electromagnetic coil, and a power supply portion, wherein the electromagnetic coil is wound around the electromagnet, and the power supply portion is energized to the electromagnetic coil to drive the magnetic element to perform the reciprocating ejecting motion.
According to one embodiment of the invention, the first ejection part is driven by the second ejection part in a wind-driven manner.
According to one embodiment of the invention, the second ejection part is an air gun, wherein the second ejection part drives the first ejection part to be ejected in an air blowing manner, and wherein the second ejection part drives the first ejection part to return in an air sucking manner in a reversing manner.
According to one embodiment of the invention, the cross-section of the bottom end of the first ejection part is selected from the group of circular-like, rectangular-like types.
According to an embodiment of the present invention, the second ejecting portion is supportedly lifted to drive the first ejecting portion to perform an ejecting motion.
According to one embodiment of the invention, the base part comprises an bottom needle plate and a face needle plate, wherein the second ejection part is embedded in the face needle plate and is accommodated in a manner of being clamped by the face needle plate and the bottom needle plate.
According to an embodiment of the invention, the movable mold core can be aligned by the first ejection part, and then the movable mold core drives the movable bushing to be aligned, so that the relative friction between the movable mold core and the movable bushing is reduced.
According to one embodiment of the invention, the ejection means of the ejection mechanism is selected from the group of types of self-driven ejection means and external-driven ejection means.
According to an embodiment of the present invention, when the ejection mechanism is driven in an external driving manner, the second ejection portion is lifted by the base portion in a supporting manner when the ejection mechanism is driven by the base portion, so as to drive the first ejection portion to perform an ejection motion.
According to another aspect of the present invention, the present invention further provides an ejection method, comprising the steps of:
(a) The first ejection part and the second ejection part in the two-section ejection mechanism are used for performing ejection movement in a manner of adjusting the ejection direction of the first ejection part.
According to one embodiment of the invention, step (a) of the ejection method further comprises the following steps:
(b) An injection-molded lens is drivingly ejected by a movable mold core locked by the first ejection part.
According to one embodiment of the invention, step (a) of the ejection method further comprises the steps of:
(a1) And driving the first ejection part to perform the ejection motion in a magnetic driving mode by the second ejection part.
According to one embodiment of the invention, step (a) of the ejection method further comprises the steps of:
(a 1') driving the first ejecting part to perform the ejecting motion by controlling the blowing by the second ejecting part.
According to one embodiment of the invention, step (a) of the ejection method further comprises the steps of:
(a 1') driving the first liftout part to perform the liftout motion in a supporting manner by the second liftout part
According to one embodiment of the present invention, the step (a 1 ") of the ejection method further comprises the steps of:
(a 11 ") aligning the ejection direction with respect to the first ejection part by the second ejection part in a universally rotatable manner.
According to one embodiment of the present invention, step (a 1 ") of the ejection method further comprises the following steps:
(a 0 ") driving the first ejecting portion to perform the reciprocating ejecting motion by a driven base portion.
According to one embodiment of the invention, step (a 1) of the ejection method further comprises the steps of:
(a11) By means of an electromagnetic coil and an electromagnet of the second ejection part, the first ejection part is driven to perform ejection or recovery actions by changing the current direction of the electromagnetic coil.
According to one embodiment of the invention, step (a) of the ejection method further comprises the following steps before:
(c) The second ejecting part is fixedly accommodated by a base part.
According to one embodiment of the present invention, step (a 1') of the ejection method further comprises the following steps:
(a 11') driving the first ejecting part to perform an ejecting operation or a returning operation by changing a wind direction by the wind gun.
Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the claims.
Drawings
FIG. 1 is a cross-sectional partial schematic view of a prior art injection mold of the present invention.
Fig. 2 is a schematic sectional view and a partially enlarged sectional view of an injection mold according to a first preferred embodiment of the present invention.
Fig. 3 is a schematic diagram of the ejection mechanism of the first preferred embodiment of the present invention.
Fig. 4 is a schematic view showing the reset operation of the ejection mechanism according to the first preferred embodiment of the present invention.
Fig. 5 is a partially cross-sectional schematic view of a first die of a second preferred embodiment of the present invention.
Fig. 6 is a schematic view of the ejection mechanism of the second preferred embodiment of the present invention performing the ejection operation.
Fig. 7 is a schematic view showing the resetting operation of the ejection mechanism according to the second preferred embodiment of the present invention.
Fig. 8 is a schematic sectional view of an injection mold according to a modified example of the second preferred embodiment of the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The underlying principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and simplicity in description, but do not indicate or imply that the device or component being referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular manner of operation, and thus, the terms are not to be construed as limiting the invention.
Referring to fig. 2, an injection mold and a vertical ejection mechanism thereof according to a first preferred embodiment of the present invention are disclosed in detail and explained, wherein the injection mold comprises a first mold 1 and a second mold 2, wherein the first mold 1 comprises an ejection mechanism 10, a movable mold plate 20 and a base portion 30, wherein the ejection mechanism 10 is pre-embedded fixed on the base portion 30 and is limitedly received in the movable mold plate 20, wherein the movable mold plate 20 comprises a movable mold core 21 and a movable side mold plate 22, wherein the movable mold core 21 limitedly locks one end of the ejection mechanism 10 and is driven by the ejection mechanism 10 to perform an ejection motion. The ejection mechanism 10 adopts a two-stage structure, in which the ejection mechanism 10 is not subject to problems of assembly deviation during assembly and offset errors during ejection movement. Further, even if there is a deviation in the perpendicularity of the movable die plate 20 and the base portion 30 and/or a deviation in the assembly angle at which the ejection mechanism 10 is assembled to the base portion 30, the ejection mechanism 10 can perform the ejection movement toward the movable core 21 of the movable die plate 20 with alignment.
Preferably, the movable mold plate 20 further includes a movable side bushing 23, wherein the movable side bushing 23 has an ejection space 100, wherein the ejection space 100 is communicated with the external space on both sides of the movable side bushing 23, wherein the movable mold core 21 is disposed on the movable side mold plate 22 in a limited manner by the movable side bushing 23, and the movable mold core 21 can be driven by the ejection mechanism 10 to perform the ejection motion.
When the second mold 2 is tightly sealed to the movable mold plate 22, after the lens 3 is injected, the first mold 1 is away from the second mold 2, wherein when the movable mold core 21 is driven by the ejection mechanism 10 to perform ejection motion, one end of the movable mold core 21 supports the lens 3 to eject, so that the lens 3 can be ejected by the movable mold core 21.
The movable die plate 20 and the base portion 30 are horizontally disposed opposite to each other, and the ejector mechanism 10 extends vertically from the base portion 30 toward the movable die plate 20.
Preferably, the ejection mechanism 10 adopts a two-stage structure, so that when the ejection movement is performed, the ejection mechanism 10 can automatically adjust the ejection direction thereof to perform the ejection movement.
Preferably, the ejection mechanism 10 includes a first ejection portion 11 and a second ejection portion 12, wherein the second ejection portion 12 is embedded in the base portion 30, and the first ejection portion 11 can be pushed by the second ejection portion 12 to perform the ejection motion in the preset ejection direction. The first ejection part 11 is flexibly connected to the second ejection part 12, and the first ejection part 11 can rotate a certain angle relative to the second ejection part 12, so that when the second ejection part 12 is inclined relative to a preset ejection direction, the first ejection part 11 can perform the ejection movement in an adjustable manner, and friction between the first ejection part 11 and the movable side bushing 23 is reduced in a process that the first ejection part 11 drives the movable mold core 21 to move, so that the damage of the injection mold is reduced.
The base portion 30 includes a faller bar 32 and an faller bar 31, wherein the faller bar 32 is fixedly overlapped on the faller bar 31, and wherein the second ejector 12 extends into the faller bar 32 and is fixedly received by the faller bar 32 and the faller bar 31.
The second ejector part 12 is lockingly protruded from the bottom pin plate 31 and the face pin plate 32 to allow the length of the first ejector part 11 to be shortened, so that the degree of deviation of deflection of the first ejector part 11 at the time of the ejection movement is reduced.
Preferably, the first mold 1 includes a carrier plate 40, wherein the carrier plate 40 is disposed between the movable platen 20 and the base portion 30 and limitedly receives the first ejection portion 11.
More preferably, the carrier plate 40 has an ejection channel 400, wherein the ejection channel 400 communicates the ejection space 100 with the external space on the other side. When the second ejecting part 12 performs the ejecting motion, the first ejecting part 11 moves in the ejecting channel 400. That is, the ejection mechanism 10 performs the ejection motion relative to the carrier plate 40.
The second mold 2 is movably mounted to the movable mold plate 20, and the lens 3 can be injection molded when the second mold 2 approaches the movable mold plate 20 and is tightly closed to the movable mold plate 20. It is worth mentioning that one end of the lens 3 is supportably attached by the movable mold core 21. After the injection molding of the lens 3 is completed, the first mold 1 is driven to be away from the second mold 2, so that the movable mold plate 20 is away from the second mold 2, wherein the ejection mechanism 10 is reset after performing the ejection action, so that the lens 3 is ejected when the ejection mechanism 10 is in the ejection position. That is, the direction of the first mold 1 away from the second mold 2 is opposite to the direction of the ejection mechanism 10.
The second die 2 further includes a fixed plate 51 and a fixed-side die plate 52, wherein the fixed plate 51 is fixedly mounted to the fixed-side die plate 52, wherein the fixed plate 51 and the fixed-side die plate 52 are reciprocally movable in common.
In the process that the second ejection part 12 drives the first ejection part 11 to the movable mold core 21 moves, the first ejection part 11 is flexibly connected with the second ejection part 12, when the extension angle of the second ejection part 12 has a certain deviation or the bottom pin plate 32, the face pin plate 31, the carrier plate 40 and the movable side mold plate 22 are mutually offset by a certain distance so that there is a deviation, it is difficult to ensure the verticality of the movable side bushing 23, the movable mold core 21 and the ejection structure 10, wherein the second ejection part 12 can perform the ejection movement after being self-aligned to a preset ejection direction.
The first ejection part 11 includes a core connecting rod 111 and a flexible connecting portion 112, wherein the core connecting rod 111 of the first ejection part 11 is integrally prepared with the flexible connecting portion 112, wherein one end of the core connecting rod 111 is provided with the flexible connecting portion 112, and the other end of the core connecting rod 111 is lockingly connected by the movable core 21, so that the core connecting rod 111 is driven to drive the movable core 21 to perform the ejection motion. The injection-molded lens 3 is supported by the movable mold core 21, wherein when the ejection mechanism 10 drives the movable mold core 21 to perform an ejection motion, the lens 3 is driven by the movable mold core 21 to eject out the first mold 1.
Preferably, the top of the connecting mold core connecting rod 111 is a bolt and is lockably connected to the movable mold core 21.
The second ejection part 12 includes a base 121, a base cover 122 and has a receiving groove 123 and a straightening channel 124, wherein the base 121 is received in the needle plate 32 in a predetermined manner and defines the receiving groove 123 to allow the flexible connecting portion 112 of the first ejection part 11 to be received in a limited manner by the base 121, wherein the base 121 is received in a clamped manner by the needle plate 32 and the bottom needle plate 31, and the base cover 122 covers the surface of the needle plate 32 and is lockingly connected to the base 121, so that the second ejection part 12 is stably disposed on the base 30, and simultaneously the base cover 122 and the base 121 are lockingly clamped to the needle plate 32, thereby effectively preventing the deformation of the needle plate 32 during movement and further reducing the loss of the injection mold.
Preferably, the second ejecting portion 12 is limitedly received in the base portion 30, wherein the second ejecting portion 12 vertically extends upward from the base portion 30. More preferably, the second ejection portion 12 includes a mounting assembly 125, wherein the mounting assembly 125 includes at least two fixing bolts 1251 and at least two spacers 1252, wherein each fixing bolt 1251 locks the base 121 and the face plate 32 respectively, so as to keep the base 121 stably restrained to the face plate 32. The spacer 1252 is disposed on the sidewall of the base 121 and fits the sidewall of the contact pin plate 32, wherein the spacer 1252 can adjust the thickness of the injection-molded lens 3. Preferably, the spacer 1252 is thicker as the thickness of the injection molded lens 3 is higher. .
It should be noted that, according to the thickness of the lens to be injection-molded, since the heights of the spacer 1252 and the second ejection portion 12 received by the needle board 32 are preset, the ejection height of the ejection mechanism 10 can be adjusted by adjusting the thickness of the spacer 1252, and then the lens can be designed according to the required lens thickness. Preferably, the spacer 1252 is thicker as the thickness of the injection molded lens 3 is higher.
Preferably, the fixing bolt 1251 is implemented as an M3 screw.
Referring to the first preferred embodiment, the base cover 122 defines the straightening channel 124, and the core connecting rod 111 of the first ejection part 11 is loosely fitted with the base cover 122, so that the core connecting rod 111 is rotatably restrained by the base cover 122 at a certain angle.
Since the flexible connection end 112 at the bottom of the mold core connection rod 111 is a sphere, the mold core connection rod 111 extends from the flexible connection end 112, so that the mold core connection rod 111 rotates around the flexible connection end 112. According to the universal swing characteristic, the core connecting rod 111 drives the movable core 21 and the movable side bushing 23 to automatically swing, so that substantial inclination among the first ejection part 11, the movable core 21 and the movable side bushing 23 is avoided, and mechanical loss caused by abrasion is reduced.
Preferably, the first ejection portion 11 and the second ejection portion 12 are connected in a manner of universal swing, so that the first ejection portion 11 can be aligned at a certain angle with respect to the second ejection portion 12.
The flexible connecting portion 112 is a sphere, wherein the alignment channel 124 communicates the accommodating space 123 with the external environment, wherein the flexible connecting end 112 is accommodated in the accommodating space 123 of the first ejection portion 11 and is not allowed to pass through the alignment channel 124, and since the alignment channel 124 is defined by the base cover 122 and allows the mold core connecting rod 111 to rotate or swing within a certain range, the alignment channel 124 is allowed to be suitable for the mold core connecting rod 111 to be driven by the flexible connecting end 112 in a universal rotation manner, so that the ejection direction thereof can be adjusted in real time. Because a part of the clearance is reserved in the alignment passage 124, when the flexible connection end 112 can rotatably adjust the mold core connection rod 111 in the accommodation space 123, the mold core connection rod 111 is allowed to universally rotate in the alignment passage 124, so that the mold core connection rod 111 can be driven to adjust the offset angle, and the mold core connection rod 111 is prevented from inclining to increase the friction between the movable mold core 21 locked by the mold core connection rod 111 and the movable side bushing 23, thereby causing the damage of the injection mold.
Further, the alignment channel 124 allows the core connecting rod 111 to be laterally deflectable relative to a predetermined ejection direction, wherein the core connecting rod 111 is rotatable in the circumferential direction.
The two-stage ejection mechanism 10 performs the ejection movement, wherein the first ejection part 11 is connected to the base part 30 in a locking manner, and wherein the second ejection part 12 can be aligned at a certain angle with respect to the first ejection part 11, which not only shortens the effective length of the actual ejection part of the ejection mechanism 10, but also realizes the ejection movement in a manner of adjusting the positive ejection direction, thereby effectively reducing the damage of the injection mold.
After the lens 3 is injection molded, the first mold 1 is far away from the second mold 2. When the base part 30 drives the ejector mechanism 10 to perform the ejecting motion toward the movable die plate 20, the center axes of the surface pin plate 32 and the bottom pin plate 31 of the base part 30 and the center axis of the movable die plate 30 deviate, and when the deviation occurs, the first ejector part 11 of the ejector mechanism 10 can rotate universally relative to the second ejector part 12 to adjust the direction thereof, and then the movable die core 21 locked by the die core connecting rod 111 of the first ejector part 11 and the movable side bushing 23 accommodating the movable die core 21 are adjusted by being driven, and the first ejector part 11 swings at any time according to a specific deviation angle to make the first ejector part 11, the movable die core 21 and the movable side bushing 23 in a coaxial state, so that the movable die core 21 and the movable side bushing 23 are not substantially inclined to increase friction, thereby improving the service life of the die.
Further, after the ejection mechanism 10 drives the movable mold core 21 to eject, the base portion 30 drives the ejection mechanism 10 to return, so that the movable mold core 21 is driven to return to a preset position, and the ejection mechanism 10 completes the ejection motion.
A method of ejection, further comprising the steps of:
(A) The two-stage ejection mechanism 10 can adjust the positive ejection direction to perform the ejection motion.
Step (a) of the ejection method further comprises the steps of:
(A1) The first ejecting part 11 is used for driving the first ejecting part 11 to do reciprocating ejection motion in a supporting manner; and
(A2) The second ejector 11 adjusts the ejection direction in a universally rotatable manner with respect to the first ejector 11.
The step (A1) of the ejection method further comprises the steps of:
(A0) The first ejecting portion 11 is driven to perform the reciprocating ejection motion by the base portion 30 driven by the injection molding machine.
Referring to fig. 5, an injection mold according to a second preferred embodiment of the present invention is disclosed and explained in detail, wherein the implementation of the ejection mechanism 10 is different to become a new embodiment, wherein the ejection mechanism 10 is also a two-stage mechanism to shorten the length of the actual ejection part of the ejection mechanism 10 so as to adjust the tilt angle, and the ejection mechanism 10 is magnetically driven to realize the ejection motion.
Preferably, the first ejection part 11 of the ejection mechanism 10 is magnetically driven by the second ejection part 12 to perform the ejection motion, so that the length of the first ejection part 11 is reduced, wherein the length of the portion actually performing the ejection motion is reduced, wherein the first ejection part 11 is limited only by the carrier plate 40 and the movable mold plate 20, further reducing the wear between the movable mold core 21 and the movable side bushing 23 during the ejection motion of the ejection mechanism 10 caused by the relative displacement of the movable mold plate 20, the carrier plate 40 and the base part 30 during the motion, and further reducing the wear of the appearance of the lens 3 during the ejection motion.
It should be noted that the ejection mechanism 10 according to the second preferred embodiment of the present invention adopts a self-driving ejection manner, and the ejection mechanism 10 is driven to eject without being driven by the base portion 30, and the ejection movement can be realized directly by powering on.
Further, the base portion 30 need not be reciprocated. Preferably, the base portion 30 is attached to the carrier plate 40 without a space for movement of the base portion 30, so that the overall volume of the first mold 1 is reduced, facilitating miniaturization of the injection mold.
The base portion 30 includes a lower fixing plate 33 and a backing plate 34, wherein the first ejection portion 11 is fixedly retained on the backing plate 34 and is clamped by the backing plate 34 and the lower fixing plate 33, and wherein the lower fixing plate 31 and the backing plate 32 jointly position the first ejection portion 11 such that the first ejection portion 11 is fixedly received.
Referring to the second preferred embodiment of the present invention, the first ejecting part 11 includes a mold core connecting rod 111 and a magnetic element 113, wherein the second ejecting part 12 includes an electromagnetic coil 126, an electromagnet 127 and a power supply part 128, wherein the electromagnetic coil 126 is wound around the electromagnet 127, and wherein the electromagnet 127 is limited by the backing plate 34.
Preferably, the power supply part 128 drives the magnetic element 113 to move after being electrified on the electromagnetic coil 126, so that the magnetic element 113 drives the mold core connecting rod 111 to move. Further, it is only necessary to change the direction of energization of the electromagnetic coil 126 to drive the magnetic element 113 away from or close to the electromagnet 127. The magnetic element 113 further drives the mold core connecting rod 111 to perform the ejecting motion. The locked movable mold core 21 connected to the mold core connecting rod 111 is driven to perform the ejection motion to realize ejection of the injection molded lens.
It is worth mentioning that when the first ejection part 11 is driven by electromagnetic driving, the ejection direction of the mold core connecting rod 111 can be adjusted by controlling the magnetic force distribution, so as to achieve the pre-adjustment. Unlike the first preferred embodiment, the electromagnetic drive of the second preferred embodiment is not capable of aligning the ejection direction in real time, but is aligned in advance.
In addition, the length of the mold core connecting rod 111 is shortened, and the mold core connecting rod 111 is only contained in a limited manner by the carrier plate 40 and the movable mold plate 20, so that the mold core connecting rod 111 is prevented from being inclined when the base part 30 is inclined with the movable mold plate 20 and the carrier plate 40 in the ejection process, the mold core connecting rod 111 is kept upright, and the mold core connecting rod 111 is further ensured to be kept upright for ejection movement.
In the present invention, holding means maintaining a predetermined direction, that is, maintaining the predetermined adjusted ejection direction of the ejection mechanism 10 without tilting, thereby reducing damage to the injection mold.
Preferably, the cross-section of the bottom end of the magnetic member 113 is implemented as a circle or a rectangle so that the magnetic member 113 can be conveniently driven.
The core connecting rod 111 is preferably the same as the cross-sectional shape of the magnetic element 113, so that the core connecting rod 111 is better driven, reducing drag.
More preferably, the cross-section of the bottom end of the magnetic member 113 is implemented in a circular shape, reducing resistance during the driving of the magnetic member 113, allowing the working efficiency of the magnetic member 113 to be driven to be improved, and also, facilitating the processing and simplifying the manufacturing process.
The power supply portion 128 further includes a power supply line 1281 and a terminal 1282, wherein the power supply line 1281 is electrically connected to the electromagnetic coil 126, and wherein the terminal 1282 is electrically connected to the power supply line 1281.
Preferably, the power cord 1281 is held between the backing plate 34 and the carrier plate 40.
Since the first ejection part 11 and the second ejection part 12 are separately disposed, wherein the first ejection part 11 is driven by the second ejection part 12 in a magnetic driving manner to perform the ejection motion, the first ejection part 11 is limitedly held between the carrier plate 40 and the movable-side die plate 22 to move, so that the first ejection part 11 moves, so that the first ejection part 11 is not affected by the relative offset between the movable die plate 20 and the base bottom part 30 or the relative offset between the carrier plate 40 and the base bottom part 30 when performing the ejection motion, so that when the core connecting rod 111 of the first ejection part 11 is driven by the magnetic element 113 to perform the ejection motion, the core connecting rod 111 performs the ejection motion in a manner that the ejection direction thereof can be adjusted in real time relative to the magnetic element 113, thereby preventing friction between the movable-side core 21 and the movable-side bushing 23 when being moved in a driving manner, thereby effectively reducing wear of the injection mold during the ejection process, and better protecting the injection mold.
It should be noted that, since the first ejection portion 11 has a certain magnetism, in order to reduce the influence of other components, the inner wall of the first ejection portion 11 in contact with the carrier plate 40 is subjected to a magnetism isolating treatment. For example, a plastic tube may be provided to the ejection channel 400 of the carrier plate 40, wherein the first ejection part 11 is received in the plastic tube, thereby achieving magnetic isolation between the first ejection part 11 and the carrier plate 40.
With reference to a second preferred embodiment of the invention, a method of ejection comprising the steps of:
(a) The first ejecting part 11 and the second ejecting part 12 in the two-stage ejecting mechanism 10 are used for carrying out the ejecting motion in a mode of adjusting the ejecting direction of the first ejecting part 11; and
(b) The injection-molded lens 3 is ejected by being carried by the movable mold core 21 locked by the first ejection part 11.
Step (a) of the ejection method further comprises the steps of:
(a1) The second ejecting part 12 drives the first ejecting part 11 to perform the ejecting motion in a magnetic driving manner.
Step (a 1) of the ejection method further comprises the steps of:
(a11) The electromagnetic coil 126 and the electromagnet 127 of the second ejection part 12 drive the first ejection part 11 to perform the ejection operation or the recovery operation by changing the current direction of the electromagnetic coil 126.
Step (a) of the ejection method further comprises the steps of:
(a2) The second ejection portion 12 is fixedly accommodated by the base portion 30.
Another variant of the second preferred embodiment of the present invention is disclosed in detail, wherein the second ejector 12 drives the first ejector 11 differently to become a new embodiment, wherein the second ejector 12 comprises a wind gun 129, and wherein the second ejector 12 drives the first ejector 11 to complete the ejection movement in a wind-driven manner.
Since this modified embodiment employs a self-driven ejection motion, the base portion 30 does not need to reciprocate to move the ejection mechanism 10.
The first ejection part 11 is embodied as an integral core connecting rod 111.
Preferably, the cross section of the bottom end of the first ejection portion 11 is implemented as a circle or a rectangle, so that the first ejection portion 11 can be blown more conveniently.
More preferably, the bottom end cross section of the first ejection part 11 is implemented as a circle, reducing the resistance of the first ejection part 11 from wind, allowing the work efficiency of the first ejection part 11 to be driven to be improved, and in addition, being easy to process, simplifying the manufacturing process.
It should be noted that the second ejection part 12 is received in the backing plate 34 in a limited manner and is held by the backing plate 34 and the lower fixing plate 33 in a clamping manner, so that the upper end of the second ejection part 12 is limited to the ejection channel 400 of the carrier plate 40, and the first ejection part 11 is held in the ejection channel 400 of the carrier plate 400 in a supporting manner by the second ejection part 12.
The air gun 129 can blow air to drive the first ejection part 11 to eject toward the movable mold core 20, so as to drive the movable mold core 21 locked by the first ejection part 11 to eject the injection molded lens, and then the air gun 129 is driven to suck air to drive the first ejection part 11 to perform a reset action, so that the movable mold core 21 locked by the first ejection part 11 is driven to reset to a preset position, so as to complete the ejection motion.
Preferably, the air gun 129 includes a driving portion and an air blowing portion and has an air blowing passage, wherein the base portion 30 is closely fitted to the carrier plate 40 such that the air blowing passage communicates with the ejecting passage 400. The driving part drives the air supply part to output air, and the air circulates through the air supply channel and drives the first ejection part 11 to perform ejection action or reset action on the ejection channel 400 and the ejection space 100.
It is worth mentioning that when the first ejection part 11 is driven by wind power, the ejection direction of the mold core connecting rod 111 can be adjusted by controlling the wind power distribution, so as to achieve the pre-adjustment. In contrast to the first preferred embodiment, the wind drive of the variant of the second preferred embodiment is not able to adjust the ejection direction in real time, but is adjusted beforehand.
In addition, the length of the mold core connecting rod 111 is shortened, and the mold core connecting rod 111 is only contained in a limited manner by the carrier plate 40 and the movable mold plate 20, so that the mold core connecting rod 111 is prevented from being inclined when the base part 30 is inclined with the movable mold plate 20 and the carrier plate 40 in the ejection process, the mold core connecting rod 111 is kept upright, and the mold core connecting rod 111 is further ensured to be aligned to perform ejection movement.
Preferably, the driving part drives the air supply part to rotate to output air, wherein the air supply part is implemented as at least one fan blade.
The changed direction of the air supply part is different, the air supply part supplies air to blow to the first ejection part 11 to push the first ejection part 11 to perform ejection action, and in addition, the air supply part reversely outputs air suction to allow the first ejection part 11 to be driven to reset.
Alternatively, the first ejection part 11 may be reset by gravity when the ejection mechanism performs an ejection motion in the vertical direction.
Optionally, the drive portion is a motor.
A method of ejection, the method comprising the steps of:
(a') the first ejecting part 11 and the second ejecting part 12 of the two-stage ejecting mechanism 10 are used to perform the ejecting motion in a manner of adjusting the ejecting direction of the first ejecting part 11; and
(b') ejecting the injection-molded lens 1 by the movable mold core 21 locked by the first ejector 11.
Step (a') of the ejection method further comprises the steps of:
(a 1') driving the first ejecting part 11 to perform the ejecting motion by blowing air through the second ejecting part 12.
The step (a 1') of the ejecting method further comprises the steps of:
(a 11') the first ejecting part 11 is driven to perform the ejecting operation or the returning operation by the air gun 129 in a manner of changing the wind direction.
It is worth mentioning that the ejection mechanism 10 is returned after completing the ejection motion to complete one of the ejection motions.
Step (a') of the ejection method further comprises the steps of:
(a 2') fixedly receives the air gun 129 by the base portion 30.
The embodiments of the various embodiments can be freely combined, and the invention is not limited in any way in this respect.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (17)
1. An ejection mechanism, is applicable to injection mold, injection mold includes a movable mold core and a movable side bush, its characterized in that, ejection mechanism includes:
the first ejection part can be connected with the movable mold core in a locking manner; and
a second ejecting part, wherein the first ejecting part is flexibly connected to the second ejecting part and is driven by the second ejecting part to perform ejecting motion in a manner of adjusting the ejecting direction, wherein the second ejecting part comprises a base and a base cover and is provided with a containing groove and a centering channel, the base defines the containing groove, the base cover defines the centering channel, the centering channel is communicated with the containing groove and the external space, and the base cover are locked and held,
the first ejection part is accommodated in the accommodating groove, extends outwards from the aligning channel and is deflected by the base cover in a limiting manner, so that the first ejection part drives the movable mold core and the movable side bushing to automatically align, and substantial inclination among the first ejection part, the movable mold core and the movable side bushing is avoided.
2. The ejection mechanism of claim 1, wherein the second ejection portion is supportingly raised to drive the first ejection portion to perform the ejection motion.
3. The ejection mechanism of claim 1, wherein the first ejection portion is provided separately from the second ejection portion, wherein the first ejection portion performs an ejection motion in such a manner that the ejection direction is aligned with respect to the second ejection portion.
4. The ejection mechanism of claim 2 or 3, wherein the first ejection portion comprises a core connecting rod and a flexible connecting portion, wherein the core connecting rod is captively received by the second ejection portion through the flexible connecting portion and allows the core connecting rod to universally rotate.
5. The ejection mechanism of claim 4, wherein the flexible link is received in the receiving channel and the core connecting rod extends outwardly from the centering channel and is captively deflected by the base cap.
6. The ejection mechanism of claim 5, wherein the flexible connection is a sphere, wherein the core link extends from the sphere, wherein the core link aligns the sphere received in the receiving cavity at an angle.
7. An injection mold, comprising:
a first die, wherein the first die further comprises:
a base portion;
a movable mould plate, wherein the movable mould plate comprises a movable mould core, a movable side bush, a bearing plate and a movable side mould plate, wherein the movable mould core is nestedly accommodated in the movable side mould plate by the movable side bush, the movable side mould plate is arranged on one side of the bearing plate, and the base part is arranged on the other side of the bearing plate;
the ejection mechanism according to any one of claims 1 to 6, wherein the base portion fixedly supports the second ejection portion, wherein the first ejection portion drives the movable core to perform an ejection motion, wherein the first ejection portion and the second ejection portion are extended from the base portion to the movable core in two stages; and
a second die, wherein the second die is relatively movable with respect to the movable-side die plate, and wherein the first ejector allows an ejection movement when the second die is away from the movable-side die plate.
8. The injection mold of claim 7, wherein the base portion comprises an end pin plate and a face pin plate, wherein the second ejector portion is engaged with and grippingly received by the face pin plate and the end pin plate.
9. The injection mold according to claim 7, wherein the movable core is aligned by the first ejector and then aligns the movable-side bush, thereby reducing relative friction between the movable core and the movable-side bush.
10. The injection mold of claim 7, wherein the ejection mechanism is selected from the group of types of self-driven ejection and externally driven ejection.
11. The injection mold of claim 10, wherein when the ejection mechanism is driven in an outward manner, the second ejection portion is supportably lifted by the base portion to drive the first ejection portion to perform an ejection motion.
12. An ejection method for an injection mold including a movable core and a movable-side bush, characterized by comprising the steps of:
(a) The first ejection part and the second ejection part in a two-section ejection mechanism are used for performing ejection movement in a manner of adjusting the ejection direction of the first ejection part,
the first ejection part is connected to the movable mold core in a locking manner and is flexibly connected to the second ejection part; the second ejection part comprises a base and a base cover and is provided with a containing groove and a correcting channel, the base defines the containing groove, the base cover defines the correcting channel, the correcting channel is communicated with the containing groove and the external space, the base and the base cover are locked and kept,
the first ejection part is accommodated in the accommodating groove, extends outwards from the aligning channel and is deflected by the base cover in a limiting manner, so that the first ejection part drives the movable mold core and the movable side bushing to automatically align, and substantial inclination among the first ejection part, the movable mold core and the movable side bushing is avoided.
13. The ejection method of claim 12, wherein step (a) of the ejection method is further followed by the steps of:
(b) An injection-molded lens is drivingly ejected by the movable mold core locked by the first ejection part.
14. The ejection method of claim 12, wherein step (a) of the ejection method further comprises the steps of:
(a 1 ") driving the first ejection part to perform the ejection motion in a supporting manner by the second ejection part.
15. The method of ejection as claimed in claim 14, wherein the step (a 1 ") of the method of ejection further comprises the steps of:
(a 11 ") aligning the ejection direction with respect to the first ejection portion by the second ejection portion in a universally rotatable manner.
16. The method of ejection as claimed in claim 14, wherein the step (a 1 ") of the method of ejection further comprises the steps of:
(a 0 ") driving the first ejecting portion to perform the reciprocating ejecting motion by a driven base portion.
17. The ejection method of claim 12, wherein step (a) of the ejection method further comprises the steps of:
(c) The second ejecting part is fixedly accommodated by a base part.
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| CN201910665107.0A CN112277254B (en) | 2019-07-23 | 2019-07-23 | Injection mold and ejection mechanism and ejection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910665107.0A CN112277254B (en) | 2019-07-23 | 2019-07-23 | Injection mold and ejection mechanism and ejection method thereof |
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| CN112277254A CN112277254A (en) | 2021-01-29 |
| CN112277254B true CN112277254B (en) | 2023-03-21 |
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| TW463687U (en) * | 2001-03-21 | 2001-11-11 | Ind Tech Res Inst | Electromagnetic driven linkage mold-clamping device |
| CN202006565U (en) * | 2010-12-10 | 2011-10-12 | 朱作玉 | Improved inclined top demolding mechanism for side core pulling of mold |
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| KR20020049304A (en) * | 2000-12-19 | 2002-06-26 | 이계안 | Fog lamp boss ejecting device of bumper mold |
| CN201192882Y (en) * | 2008-03-18 | 2009-02-11 | 上海顺威电器有限公司 | Dynamic balance adjustment column of plastic mold shaping apparatus |
| EP2216158A1 (en) * | 2009-02-05 | 2010-08-11 | Etervind AB | Core assembly for an injection moulding-machine |
| CN106891479A (en) * | 2017-02-22 | 2017-06-27 | 佛山市顺德区百年科技有限公司 | Ramp-roof structure and injection mold |
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|---|---|
| CN112277254A (en) | 2021-01-29 |
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