CN112976514A - Demoulding device for injection mould - Google Patents
Demoulding device for injection mould Download PDFInfo
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- CN112976514A CN112976514A CN202110167245.3A CN202110167245A CN112976514A CN 112976514 A CN112976514 A CN 112976514A CN 202110167245 A CN202110167245 A CN 202110167245A CN 112976514 A CN112976514 A CN 112976514A
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- seat
- movable
- ejector rod
- rod
- ejector
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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
- B29C45/44—Removing or ejecting moulded articles for undercut articles
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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
- B29C45/2602—Mould construction elements
Abstract
The invention relates to a demoulding device for an injection mould, which comprises an inclined top seat, a positive top seat, a movable seat and a longitudinal moving assembly, wherein the inclined top seat is arranged on the upper surface of the positive top seat; the upper surface of the fixed die is provided with an accommodating groove; the right side surface of the inclined top seat is provided with a convex surface; the left side surface of the positive top seat is provided with a concave surface; a movable cavity is arranged in the fixed die; the movable seat is fixedly provided with a straight ejector rod and a lower inclined ejector rod; an upper oblique mandril is arranged above the lower oblique mandril; the upper oblique ejector rod is fixedly provided with a transverse guide rod; a first mounting plate is fixedly arranged on the left side of the upper oblique ejector rod; the right side surface of the first mounting plate is provided with a guide groove; a position sensor, an electromagnet for adsorbing the guide rod and a reset assembly for resetting the upper inclined ejector rod are fixedly arranged in the movable cavity; the electromagnet is arranged on the left side of the guide rod; the device also comprises a controller; when the demolding device provided by the invention is used for demolding, an insert does not need to be arranged and manually detached, so that the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of demolding devices, in particular to a demolding device for an injection mold.
Background
Injection moulding product with back-off can generally utilize the injection mold who is equipped with oblique top mechanism to mould plastics, and after the completion of moulding plastics, utilize oblique top mechanism to carry out the drawing of patterns can, but when oblique top space of loosing core is not enough, just can only adopt following mode:
during injection molding, the insert is arranged at the back-off position, then injection molding is carried out, demolding is carried out after injection molding is finished, and the insert on the workpiece needs to be taken down manually after demolding.
It can be seen that this approach is inefficient to produce.
Disclosure of Invention
The present invention is directed to provide a mold release device for an injection mold, which overcomes the above-mentioned drawbacks of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the demolding device for the injection mold comprises an inclined top seat, a positive top seat, a movable seat and a longitudinal movement assembly, wherein the inclined top seat, the positive top seat and the movable seat are all arranged on a fixed mold;
the upper surface of the fixed die is provided with a containing groove for containing the inclined top seat and the positive top seat; the inclined top seat and the positive top seat are sequentially arranged in the accommodating groove from left to right; the right side surface of the inclined top seat is provided with a convex surface matched with the reverse buckle of the workpiece; the left side surface of the positive top seat is provided with a concave surface matched with the reverse buckle;
a movable cavity matched with the movable seat is arranged in the fixed die; the movable seat is arranged in the movable cavity; the movable cavity is communicated with the accommodating groove;
a straight ejector rod and a lower inclined ejector rod are respectively fixedly arranged on the movable seat corresponding to the positive ejector seat and the inclined ejector seat; the straight ejector rod is fixedly connected with the positive ejector seat; an upper oblique mandril matched with the lower oblique mandril is arranged above the lower oblique mandril; the upper inclined ejector rod is fixedly connected with the inclined ejector seat; the upper oblique ejector rod is fixedly provided with a transverse guide rod; the guide rod is an iron rod;
a first mounting plate is fixedly arranged on the left side of the upper oblique ejector rod; the right side surface of the first mounting plate is provided with a guide groove which is matched with the guide rod and extends transversely;
a position sensor, an electromagnet for adsorbing the guide rod and a reset assembly for resetting the upper inclined ejector rod are fixedly arranged in the movable cavity; the electromagnet is arranged on the left side of the guide rod;
the device also comprises a controller; the position sensor and the electromagnet are both electrically connected with and controlled by the controller; the position sensor sends a left moving signal to the controller when the guide rod is opposite to the guide groove; and the controller controls the electromagnet to adsorb the guide rod when receiving the left movement signal.
The demolding device for the injection mold comprises a movable mold, a longitudinal moving mechanism, a vertical rod, a left sliding block, a right sliding block and a transverse rotating shaft, wherein the longitudinal moving mechanism is used for driving the movable mold to move longitudinally;
the movable die is arranged above the fixed die; the movable cavity is provided with a movable hole matched with the upright rod; the movable hole is communicated with the upper surface of the fixed die;
the rotating shaft is rotatably provided with a left swing arm and a right swing arm; the left swing arm and the right swing arm are respectively connected with the left sliding block and the right sliding block in a rotating mode; the rotating planes of the left swing arm and the right swing arm are vertical;
a torsion spring is sleeved outside the rotating shaft; and the two torsion arms of the torsion spring are fixedly connected with the left swing arm and the right swing arm respectively.
The demoulding device for the injection mould, disclosed by the invention, further comprises a T-shaped thimble;
the upper surface of the positive top seat is provided with a transverse groove matched with the transverse section of the thimble; the inner bottom surface of the transverse groove, the straight ejector rod and the movable seat are all provided with a longitudinal groove matched with the longitudinal section of the ejector pin;
the right sliding block is T-shaped; the right side surface of the movable seat is provided with a T-shaped sliding groove matched with the right sliding block; the sliding groove is communicated with the lower surface of the movable seat and the longitudinal groove formed in the movable seat;
and the upper surface of the right sliding block is provided with a limiting groove matched with the lower end of the thimble.
According to the demolding device for the injection mold, the lower end face of the ejector pin and the right side face of the ejector pin are transited through the arc-shaped face protruding outwards.
The demoulding device for the injection mould is characterized in that the electromagnet is fixedly arranged in the guide groove.
The demoulding device for the injection mould is characterized in that the number of the guide rods is two, and the two guide rods are respectively arranged on the front side and the rear side of the upper inclined ejector rod; the first mounting plate is provided with two, two first mounting plate and two the guide arm one-to-one.
The demolding device for the injection mold, disclosed by the invention, comprises a reset assembly and a demolding assembly, wherein the reset assembly comprises a second mounting plate and a reset plate which are sequentially arranged between the two first mounting plates from left to right, and a reset spring arranged between the second mounting plate and the reset plate; the second mounting plate is fixedly connected with the first mounting plate; two ends of the reset spring are fixedly connected with the second mounting plate and the reset plate respectively; the reset plate is always pressed on the upper inclined ejector rod;
the upper oblique ejector rod is fixedly provided with a left limiting block; the left limiting block is arranged on the left side of the lower oblique ejector rod; the lower oblique ejector rod is fixedly provided with a right limiting block; the right limiting block is arranged on the right side of the upper oblique ejector rod.
The demolding device for the injection mold is characterized in that a third mounting plate is fixedly arranged on the right side of the upper inclined ejector rod; the position sensor is fixedly arranged on the third mounting plate; the left side surface of the third mounting plate is coplanar with the right side surface of the lower oblique ejector rod.
In the demolding device for the injection mold, the longitudinal section of the accommodating groove is in a trapezoid shape with a large upper part and a small lower part.
The invention has the beneficial effects that: when the die is opened, the longitudinal moving assembly is used for driving the movable seat to move upwards, in the process, the straight ejector rod drives the positive ejector seat to move upwards, the lower oblique ejector rod drives the upper oblique ejector rod to move upwards to push the oblique ejector seat to move upwards, and further, a workpiece is taken off from the fixed die, so that the first demolding stage is completed, the guide rod is over against the guide groove when the first demolding stage is completed, then, the position sensor sends a left movement signal to the controller, the controller controls the electromagnet to adsorb the guide rod when receiving the left movement signal, the guide rod moves leftwards to enter the guide groove and moves along the guide groove under the action of the electromagnet, the upper oblique ejector rod is separated from the support of the lower oblique ejector rod and drives the oblique ejector seat to move leftwards to be separated from the workpiece, and the second demolding; when the demolding device provided by the invention is used for demolding, an insert does not need to be arranged or manually detached, so that the production efficiency is improved; when the die is closed or before the die is closed, the controller is used for controlling the electromagnet to release the adsorption on the guide rod, the reset assembly is used for enabling the upper inclined ejector rod to move rightwards to reset, the lower inclined ejector rod is used for supporting again, the longitudinal moving assembly is used for driving the movable seat to move downwards, the inclined ejector seat and the positive ejector seat move downwards along with the movable seat, when the upper inclined ejector rod and the positive ejector seat move downwards to the right, the inclined ejector seat and the positive ejector seat enter the accommodating groove, the convex surface and the concave surface form a reversed cavity in a surrounding mode, and the reversed forming is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:
fig. 1 is a schematic structural view of a mold release apparatus for an injection mold according to a preferred embodiment of the present invention (a stationary mold and a movable mold are in a mold closing state);
FIG. 2 is a schematic structural view of the ejector for injection molds according to the preferred embodiment of the present invention with the movable mold hidden (in a state when the first stage of ejection is completed);
FIG. 3 is a schematic view showing a structure of the ejector for injection molds according to the preferred embodiment of the present invention after the movable mold is hidden (in a state when the second stage of ejection is completed);
FIG. 4 is a schematic structural view of the ejector for injection molds according to the preferred embodiment of the present invention with the movable mold hidden (in a state when the third stage of ejection is completed);
FIG. 5 is a schematic view showing the structure of the ejector for injection molds according to the preferred embodiment of the present invention with the movable mold hidden (in a state when the fourth stage of ejection is completed);
FIG. 6 is a schematic view showing the assembly of the return unit, the upper lifter and the first mounting plate of the ejector for injection molds according to the preferred embodiment of the present invention (in a state where the second stage of the ejection is completed);
fig. 7 is an assembly view of the return unit, the upper lifter and the first mounting plate of the ejector for injection molds according to the preferred embodiment of the present invention (in a state just before the second stage of the ejection).
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
A schematic structural view of the demolding device for an injection mold according to the preferred embodiment of the present invention (the fixed mold and the movable mold are in a mold closing state) is shown in fig. 1, and fig. 2 to 7 are also referred; comprises an inclined top seat 1, a positive top seat 2, a movable seat 3 and a longitudinal movement component (not marked in the figure) which are all arranged on a fixed die 37 and are used for driving the movable seat 3 to move longitudinally;
the upper surface of the fixed die 37 is provided with a containing groove 4 for containing the inclined top seat 1 and the positive top seat 2; the inclined top seat 1 and the positive top seat 2 are sequentially arranged in the accommodating groove 4 from left to right; the right side surface of the inclined top seat 1 is provided with a convex surface 5 matched with the back-off of the workpiece; the left side surface of the positive top seat 2 is provided with a concave surface 6 matched with the reverse buckle;
a movable cavity 7 matched with the movable seat 3 is arranged in the fixed die 37; the movable seat 3 is arranged in the movable cavity 7; the movable cavity 7 is communicated with the accommodating groove 4;
a straight ejector rod 8 and a lower inclined ejector rod 9 are respectively fixedly arranged on the movable seat 3 corresponding to the positive ejector seat 2 and the inclined ejector seat 1; the straight ejector rod 8 is fixedly connected with the positive ejector seat 2; an upper oblique mandril 10 matched with the lower oblique mandril 9 is arranged above the lower oblique mandril 9; the upper oblique ejector rod 10 is fixedly connected with the oblique ejector seat 1; the upper oblique mandril 10 is fixedly provided with a transverse guide rod 11; the guide rod 11 is an iron rod;
a first mounting plate 12 is fixedly arranged on the left side of the upper oblique mandril 10; the right side surface of the first mounting plate 12 is provided with a guide groove 13 which is matched with the guide rod 11 and extends transversely;
a position sensor 14, an electromagnet 15 for adsorbing the guide rod 11 and a reset assembly 16 for resetting the upper inclined ejector rod 10 are fixedly arranged in the movable cavity 7; the electromagnet 15 is arranged on the left side of the guide rod 11;
a controller (not shown in the figures); the position sensor 14 and the electromagnet 15 are both electrically connected with and controlled by the controller; a position sensor 14 for sending a left shift signal to the controller when the guide bar 11 is opposite to the guide groove 13; the controller controls the electromagnet 15 to attract the guide rod 11 when receiving the left shift signal.
When the mold is opened, the movable seat 3 is driven to move upwards by the longitudinal movement component, in the process, the straight ejector rod 8 drives the positive ejector seat 2 to move upwards, the lower oblique ejector rod 9 drives the upper oblique ejector rod 10 to move upwards, so that the oblique ejector seat 1 is pushed to move upwards, and further, a workpiece is taken off from the fixed mold 37, so that the first stage of demolding is completed, and when the first stage of demolding is completed, the guide rod 11 is just opposite to the guide groove 13, then, the position sensor 14 sends a left movement signal to the controller, the controller controls the electromagnet 15 to adsorb the guide rod 11 when receiving the left movement signal, the guide rod 11 moves leftwards under the action of the electromagnet 15, enters the guide groove 13 and moves along the guide groove 13, the upper oblique ejector rod 10 is separated from the support of the lower oblique ejector rod 9, and drives the oblique ejector seat 1 to move leftwards, so that the oblique ejector; when the demolding device provided by the invention is used for demolding, an insert does not need to be arranged or manually detached, so that the production efficiency is improved; when the die is closed or before the die is closed, the controller is used for controlling the electromagnet 15 to remove the adsorption on the guide rod 11, the reset component 16 is used for enabling the upper inclined ejector rod 10 to move rightwards for resetting, the lower inclined ejector rod 9 is used for supporting again, finally the longitudinal moving component is used for driving the movable seat 3 to move downwards, the inclined ejector seat 1 and the positive ejector seat 2 move downwards along with the upper inclined ejector rod, when the upper inclined ejector seat 1 and the positive ejector seat 2 move downwards to the right, the inclined ejector seat 1 and the positive ejector seat 2 enter the accommodating groove 4, and the convex surface 5 and the concave surface 6 form an inverted die cavity in a surrounding mode.
Preferably, the longitudinal moving assembly comprises a movable mold 17, a longitudinal moving mechanism (not shown in the figure) for driving the movable mold 17 to move longitudinally, a vertical rod 18 fixed on the movable seat 3, a left slide block 19 and a right slide block 20 both arranged on the movable seat 3 in a transverse sliding manner, and a transverse rotating shaft 21 fixed in the movable cavity 7;
the movable mold 17 is arranged above the fixed mold 37; the movable cavity 7 is provided with a movable hole 22 matched with the upright rod 18; the movable hole 22 communicates with the upper surface of the fixed mold 37;
the rotating shaft 21 is rotatably provided with a left swing arm 23 and a right swing arm 24; the left swing arm 23 and the right swing arm 24 are respectively connected with the left slider 19 and the right slider 20 in a rotating way; the rotating planes of the left swing arm 23 and the right swing arm 24 are vertical;
a torsion spring 25 is sleeved outside the rotating shaft 21; two torsion arms of the torsion spring 25 are fixedly connected with the left swing arm 23 and the right swing arm 24 respectively.
During die assembly, the longitudinal moving mechanism drives the movable die 17 to move downwards, in the process, the movable die 17 presses the upright rod 18 to drive the movable seat 3 to move downwards, meanwhile, the left swing arm 23 and the right swing arm 24 swing along with the movable die in the direction away from each other, the left slide block 19 and the right slide block 20 slide along with the movable die in the direction away from each other, and the two torsion arms of the torsion spring 25 open along the direction away from each other; when the mold is opened, the longitudinal moving mechanism drives the movable mold 17 to move upwards, in the process, the movable mold 17 releases the upright rod 18, the two torsion arms of the torsion spring 25 are reset, so that the left swing arm 23 and the right swing arm 24 are driven to swing towards each other, and meanwhile, the left slide block 19 and the right slide block 20 slide towards each other, and the movable seat 3 moves upwards; the movable seat 3 moves downwards by using a longitudinal movement mechanism, moves upwards by using the reset of the torsion spring 25, does not need to be provided with other power mechanisms, and has simple structure and low cost; in the second stage of demolding, the guide rod 11 enters the guide groove 13, so the upper oblique ejector rod 10 cannot move upwards, and the upper end surface of the lower oblique ejector rod 9 is in contact with the lower end surface of the upper oblique ejector rod 10, so the lower oblique ejector rod 9 cannot move upwards, and the acting force provided by the torsion spring 25 can prevent the movable seat 3 from moving downwards, so that the movable seat 3 cannot move longitudinally under the combined action of the upper oblique ejector rod 10 and the torsion spring 25 in the process, so that the workpiece cannot move longitudinally.
It should be noted that: the longitudinal moving mechanism is an existing longitudinal moving mechanism.
Preferably, a T-shaped thimble 26 is further included;
the upper surface of the positive footstock 2 is provided with a transverse groove 27 matched with the transverse section of the thimble 26; the inner bottom surface of the transverse groove 27, the straight ejector rod 8 and the movable seat 3 are all provided with a longitudinal groove 28 matched with the longitudinal section of the ejector pin 26;
the right slider 20 is T-shaped; the right side surface of the movable seat 3 is provided with a T-shaped sliding groove 29 matched with the right sliding block 20; the sliding groove 29 is communicated with the lower surface of the movable seat 3 and the longitudinal groove 28 arranged on the movable seat 3;
the upper surface of the right slider 20 is provided with a limit groove 30 which is matched with the lower end of the thimble 26.
The principle is illustrated as follows:
firstly, when the second demolding stage is finished, the upper oblique ejector rod 10 is separated from the lower oblique ejector rod 9, so that:
A. because the guide rod 11 is positioned in the guide groove 13, the guide groove 13 provides support for the upper inclined ejector rod 10 and the inclined ejector seat 1, so that the position of the inclined ejector seat 1 is maintained;
B. after that, when the movable seat 3 continues to move upwards, the upper inclined mandril 10 and the inclined mandril 1 cannot be driven to move upwards;
C. the movable seat 3 can move upwards continuously under the action of the torsion spring 25 because the upper oblique ejector rod 10 is not pressed and held any more, and the third stage of demoulding begins;
when the third stage of demolding is carried out, the right sliding block 20 slides leftwards, the ejector pin 26 is jacked up, the ejector pin 26 jacks up the workpiece, the workpiece is separated from the positive jacking seat 2, the workpiece is more convenient to take, and at the moment, the third stage of demolding is finished;
and thirdly, after the third demolding stage is finished, the movable seat 3 continues to move upwards under the action of the torsion spring 25, the fourth demolding stage begins, the right sliding block 20 continues to slide leftwards, when the limiting groove 30 on the right sliding block moves to be right below the ejector pin 26, the ejector pin 26 moves downwards under the action of self gravity to enter the limiting groove 30, and because the force which can be provided by the torsion spring 25 is not large at this time, the right sliding block 20 cannot continue to move leftwards under the limiting action of the ejector pin 26, the movable seat 3 cannot continue to move upwards, and thus the fourth demolding stage is finished, and the whole demolding process is finished.
Fourthly, when the die is closed, the fixed die 37 presses the upright post 18 to enable the movable seat 3 to move downwards, in the process, the right slide block 20 moves rightwards, the ejector rod is jacked up firstly, when the upper oblique ejector rod moves to a certain position, the ejector rod is separated from the right slide block 20 and moves downwards under the action of self gravity to reset, at the moment, the upper surface of the lower oblique ejector rod 9 is coplanar with the lower surface of the upper oblique ejector rod 10, the position sensor 14 sends a right movement signal to the controller, when the controller receives the right movement signal, the electromagnet 15 is controlled to release the adsorption of the guide rod 11, the upper oblique ejector rod 10 moves rightwards under the action of the reset component 16 to reset, the lower oblique ejector rod 9 is used for supporting again, the oblique ejector seat 1 moves rightwards to reset along with the oblique ejector rod, and then, the movable seat 3 continues to move downwards, the inclined footstock 1 and the positive footstock 2 enter the accommodating groove 4, when the die assembly is completed, the upper surface of the upright 18 is flush with the upper surface of the fixed die 37, and the convex surface 5 and the concave surface 6 enclose a reversed cavity.
Preferably, the lower end surface of the thimble 26 and the right side surface of the thimble 26 are transited by an arc surface (not labeled in the figure) protruding outwards; facilitating the jacking of the thimble 26.
Preferably, the electromagnet 15 is fixedly arranged in the guide groove 13; the structure is compact.
Preferably, two guide rods 11 are arranged, and the two guide rods 11 are respectively arranged at the front side and the rear side of the upper inclined ejector rod 10; two first mounting plates 12 are arranged, and the two first mounting plates 12 correspond to the two guide rods 11 one by one.
Preferably, the reset assembly 16 comprises a second mounting plate 31 and a reset plate 32 which are arranged between the two first mounting plates 12 from left to right, and a reset spring 33 arranged between the second mounting plate 31 and the reset plate 32; the second mounting plate 31 is fixedly connected with the first mounting plate 12; two ends of the return spring 33 are fixedly connected with the second mounting plate 31 and the return plate 32 respectively; the reset plate 32 is always pressed on the upper oblique mandril 10;
the upper oblique mandril 10 is fixedly provided with a left limit block 34; the left limiting block 34 is arranged on the left side of the lower oblique mandril 9; the lower oblique ejector rod 9 is fixedly provided with a right limiting block 35; the right limiting block 35 is arranged on the right side of the upper oblique mandril 10;
during the second stage of demoulding, the upper oblique ejector rod 10 moves leftwards to drive the reset plate 32 to move leftwards, and the reset spring 33 is compressed; the left limiting block 34 and the right limiting block 35 are arranged, so that the upper oblique ejector rod 10 cannot be separated from the lower oblique ejector rod 9 when the first demolding stage is carried out.
Preferably, a third mounting plate 36 is fixedly arranged on the right side of the upper oblique mandril 10; the position sensor 14 is fixedly arranged on the third mounting plate 36; the left side surface of the third mounting plate 36 is coplanar with the right side surface of the lower oblique mandril 9; the third mounting plate 36 not only serves a mounting function, but also serves a guiding function.
Preferably, the longitudinal section of the accommodating groove 4 is a trapezoid with a large upper part and a small lower part; the inclined footstock 1 and the positive footstock 2 can enter conveniently.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (9)
1. A demoulding device for an injection mould is characterized by comprising an inclined top seat, a positive top seat, a movable seat and a longitudinal movement assembly, wherein the inclined top seat, the positive top seat and the movable seat are all arranged on a fixed mould;
the upper surface of the fixed die is provided with a containing groove for containing the inclined top seat and the positive top seat; the inclined top seat and the positive top seat are sequentially arranged in the accommodating groove from left to right; the right side surface of the inclined top seat is provided with a convex surface matched with the reverse buckle of the workpiece; the left side surface of the positive top seat is provided with a concave surface matched with the reverse buckle;
a movable cavity matched with the movable seat is arranged in the fixed die; the movable seat is arranged in the movable cavity; the movable cavity is communicated with the accommodating groove;
a straight ejector rod and a lower inclined ejector rod are respectively fixedly arranged on the movable seat corresponding to the positive ejector seat and the inclined ejector seat; the straight ejector rod is fixedly connected with the positive ejector seat; an upper oblique mandril matched with the lower oblique mandril is arranged above the lower oblique mandril; the upper inclined ejector rod is fixedly connected with the inclined ejector seat; the upper oblique ejector rod is fixedly provided with a transverse guide rod; the guide rod is an iron rod;
a first mounting plate is fixedly arranged on the left side of the upper oblique ejector rod; the right side surface of the first mounting plate is provided with a guide groove which is matched with the guide rod and extends transversely;
a position sensor, an electromagnet for adsorbing the guide rod and a reset assembly for resetting the upper inclined ejector rod are fixedly arranged in the movable cavity; the electromagnet is arranged on the left side of the guide rod;
the device also comprises a controller; the position sensor and the electromagnet are both electrically connected with and controlled by the controller; the position sensor sends a left moving signal to the controller when the guide rod is opposite to the guide groove; and the controller controls the electromagnet to adsorb the guide rod when receiving the left movement signal.
2. The demolding device for injection molds according to claim 1, wherein the longitudinal movement assembly comprises a movable mold, a longitudinal movement mechanism for driving the movable mold to move longitudinally, a vertical rod fixedly arranged on the movable seat, a left slide block and a right slide block which are both transversely slidably arranged on the movable seat, and a transverse rotating shaft fixedly arranged in the movable cavity;
the movable die is arranged above the fixed die; the movable cavity is provided with a movable hole matched with the upright rod; the movable hole is communicated with the upper surface of the fixed die;
the rotating shaft is rotatably provided with a left swing arm and a right swing arm; the left swing arm and the right swing arm are respectively connected with the left sliding block and the right sliding block in a rotating mode; the rotating planes of the left swing arm and the right swing arm are vertical;
a torsion spring is sleeved outside the rotating shaft; and the two torsion arms of the torsion spring are fixedly connected with the left swing arm and the right swing arm respectively.
3. The demolding device for an injection mold as claimed in claim 2, further comprising a T-shaped ejector pin;
the upper surface of the positive top seat is provided with a transverse groove matched with the transverse section of the thimble; the inner bottom surface of the transverse groove, the straight ejector rod and the movable seat are all provided with a longitudinal groove matched with the longitudinal section of the ejector pin;
the right sliding block is T-shaped; the right side surface of the movable seat is provided with a T-shaped sliding groove matched with the right sliding block; the sliding groove is communicated with the lower surface of the movable seat and the longitudinal groove formed in the movable seat;
and the upper surface of the right sliding block is provided with a limiting groove matched with the lower end of the thimble.
4. The demolding device for an injection mold as claimed in claim 3, wherein the lower end surface of the ejector pin and the right side surface of the ejector pin are transited by an arc-shaped surface protruding outwards.
5. The demolding device as claimed in claim 1, wherein the electromagnet is fixedly disposed in the guide groove.
6. The demolding device for injection molds according to claim 1, wherein two guide rods are provided, and the two guide rods are respectively provided on the front side and the rear side of the upper ejector rod; the first mounting plate is provided with two, two first mounting plate and two the guide arm one-to-one.
7. The demolding device for the injection mold according to claim 6, wherein the resetting component comprises a second mounting plate and a resetting plate which are sequentially arranged between the two first mounting plates from left to right, and a resetting spring arranged between the second mounting plate and the resetting plate; the second mounting plate is fixedly connected with the first mounting plate; two ends of the reset spring are fixedly connected with the second mounting plate and the reset plate respectively; the reset plate is always pressed on the upper inclined ejector rod;
the upper oblique ejector rod is fixedly provided with a left limiting block; the left limiting block is arranged on the left side of the lower oblique ejector rod; the lower oblique ejector rod is fixedly provided with a right limiting block; the right limiting block is arranged on the right side of the upper oblique ejector rod.
8. The demolding device for injection molds as claimed in claim 1, wherein a third mounting plate is fixedly provided on the right side of the upper ejector pin; the position sensor is fixedly arranged on the third mounting plate; the left side surface of the third mounting plate is coplanar with the right side surface of the lower oblique ejector rod.
9. The ejector apparatus for an injection mold according to claim 1, wherein the vertical section of said housing groove is a trapezoid having a large top and a small bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110167245.3A CN112976514A (en) | 2021-02-07 | 2021-02-07 | Demoulding device for injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110167245.3A CN112976514A (en) | 2021-02-07 | 2021-02-07 | Demoulding device for injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112976514A true CN112976514A (en) | 2021-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110167245.3A Pending CN112976514A (en) | 2021-02-07 | 2021-02-07 | Demoulding device for injection mould |
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| CN (1) | CN112976514A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203622842U (en) * | 2013-11-21 | 2014-06-04 | 浙江凯华模具有限公司 | Injection mold and pitched roof oil cylinder combined sequential inner and outer inverted buckle removal mechanism |
| CN211279546U (en) * | 2019-11-25 | 2020-08-18 | 深圳职业技术学院 | Portable rapid prototyping injection mold of integration |
| CN211616431U (en) * | 2019-12-23 | 2020-10-02 | 湖北友成塑料模具有限公司 | Injection molding processing mold with slide assembly |
-
2021
- 2021-02-07 CN CN202110167245.3A patent/CN112976514A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203622842U (en) * | 2013-11-21 | 2014-06-04 | 浙江凯华模具有限公司 | Injection mold and pitched roof oil cylinder combined sequential inner and outer inverted buckle removal mechanism |
| CN211279546U (en) * | 2019-11-25 | 2020-08-18 | 深圳职业技术学院 | Portable rapid prototyping injection mold of integration |
| CN211616431U (en) * | 2019-12-23 | 2020-10-02 | 湖北友成塑料模具有限公司 | Injection molding processing mold with slide assembly |
Non-Patent Citations (1)
| Title |
|---|
| 杨晓娟主编: ""中国好设计：制造装备创新设计案例研究"", vol. 1, 吉林出版集团有限责任公司, pages: 1678 * |
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