CN223657536U - A hydraulic ejection device for injection molds - Google Patents
A hydraulic ejection device for injection moldsInfo
- Publication number
- CN223657536U CN223657536U CN202423021902.1U CN202423021902U CN223657536U CN 223657536 U CN223657536 U CN 223657536U CN 202423021902 U CN202423021902 U CN 202423021902U CN 223657536 U CN223657536 U CN 223657536U
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- hydraulic
- movable plate
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Abstract
本实用新型公开了一种注塑模具液压退件装置，具体涉及注塑模具技术领域，包括动模和安装在动模一侧的定模，定模的两端内部均安装有第一液压缸，两个第一液压缸的输出端平行设置，且两个第一液压缸的输出端与动模的端部外壁固定连接，定模的中部靠近动模的一侧位置处设置有型腔，动模的中部外壁位于型腔的内侧设置有凸模，动模的内部设置有与型腔内部连通的注塑孔，动模的内部靠近凸模的一侧安装有液压退件机构。本实用新型便于在开模后，对成型的工件进行顶出，且在开模顶出工件的过程中，利用控制振动马达的运行产生高频率振动，能够使注塑成型的工件脱离顶杆的端头，从而更加有效的对工件进行退件处理。
This utility model discloses a hydraulic ejection device for injection molds, specifically relating to the field of injection mold technology. It includes a moving mold and a fixed mold mounted on one side of the moving mold. Two first hydraulic cylinders are installed inside both ends of the fixed mold, with their output ends arranged in parallel and fixedly connected to the outer wall of the moving mold. A cavity is located in the middle of the fixed mold near the moving mold. A punch is located on the outer wall of the middle of the moving mold inside the cavity. An injection hole communicating with the cavity is located inside the moving mold. A hydraulic ejection mechanism is installed inside the moving mold near the punch. This utility model facilitates the ejection of the molded workpiece after mold opening. During the ejection process, high-frequency vibration generated by controlling the operation of a vibration motor allows the injection-molded workpiece to detach from the ejector pin, thus more effectively ejecting the workpiece.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a hydraulic part withdrawing device of an injection mold.
Background
The injection mold is an important component of a plastic injection molding machine (for short, an injection molding machine) and is used for processing thermoplastic or thermosetting plastics into various plastic parts, wherein the injection molding process comprises the steps of material conveying, melting, injection, cooling, mold opening, part unloading and the like, and after the plastic parts are cooled and shaped, the mold needs to be opened, and then the plastic parts are taken out from the mold, so that the process is the part unloading.
The traditional injection mold unloading mode often relies on manual operation, which is time-consuming and labor-consuming and has a certain error risk. When the manual work is unloaded, if the operation is improper, can lead to the working of plastics to damage, cause the injury even to operating personnel, in addition, along with the continuous improvement of injection molding machine production speed, the mode of manual work is unloaded has been difficult to satisfy the demand of high-efficient production, in order to solve above-mentioned problem, hydraulic pressure moves back a device and is produced, and injection mold hydraulic pressure moves back a device to be one that utilizes hydraulic pressure principle to realize that the working of plastics is unloaded automatically.
The existing hydraulic ejection device of the injection mold is usually simple in hydraulic pushing to eject an injection molded workpiece, but in actual use, as the ejection surface keeps contact with the workpiece in the injection molding process, if the weight of the workpiece is lighter in the ejection process, the workpiece and the ejection surface have certain adhesive force and are not easy to fall off, so that ejection is difficult, and subsequent injection molding is affected.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides a hydraulic part withdrawing device of an injection mold.
In order to achieve the purpose, the hydraulic part withdrawing device of the injection mold comprises a movable mold and a fixed mold arranged on one side of the movable mold, wherein first hydraulic cylinders are arranged inside two ends of the fixed mold, output ends of the two first hydraulic cylinders are arranged in parallel, the output ends of the two first hydraulic cylinders are fixedly connected with the outer wall of the end part of the movable mold, a cavity is arranged in the position, close to the movable mold, of the middle part of the fixed mold, a male mold is arranged on the outer wall, close to the inner side of the cavity, of the middle part of the movable mold, an injection hole communicated with the inner part of the cavity is formed in the movable mold, a cooling channel group is arranged outside, close to the cavity, of the inner part of the fixed mold, and a hydraulic part withdrawing mechanism is arranged on one side, close to the male mold, of the inner part of the movable mold.
As a further improvement of the technical scheme of the utility model, the cooling channel group comprises two cooling cavities which are symmetrically arranged at two outer sides of the cavity, a communication cavity is communicated between the two cooling cavities, the communication cavity is staggered from the injection hole, one cooling cavity end is communicated with a cooling liquid inlet channel, and the other cooling cavity end is communicated with a cooling liquid outlet channel.
As a further improvement of the technical scheme of the utility model, the hydraulic part withdrawing mechanism comprises a movable plate connected inside a movable die, a movable cavity is arranged inside the movable die corresponding to the outside of the movable plate in the horizontal direction, a second hydraulic cylinder for driving the movable plate to horizontally move is arranged on the outer wall of the end part of the movable die, limiting components are arranged at the positions of the two ends of the movable plate in the movable die, a first ejector rod is fixedly connected to the middle part of the movable plate in the horizontal direction, one end part of the first ejector rod extends to the inner side of a male die, and second ejector rods are connected to the positions of the two sides of the first ejector rod on the outer wall of the movable plate.
As a further improvement of the technical scheme of the utility model, the second hydraulic cylinder is fixedly connected with the movable die through bolts, and the output end of the second hydraulic cylinder is fixedly connected with the outer wall of the movable plate through bolts.
As a further improvement of the technical scheme of the utility model, the limiting assembly comprises a limiting column inserted at the end part of the movable plate along the horizontal direction, one end part of the limiting column is fixedly connected with the inner wall of the movable cavity, the other end part of the limiting column is provided with a limiting block, and a limiting hole for the limiting column to pass through is formed in the movable plate.
As a further improvement of the technical scheme of the utility model, the end part of the movable mould is provided with a through hole for the first ejector rod and the second ejector rod to pass through, the inside of the male mould is provided with a through hole for the first ejector rod to pass through, and the through hole is communicated with the inside of the cavity.
As a further improvement of the technical scheme of the utility model, a fixed cavity is arranged in at least one second ejector rod, a vibrating motor is arranged in the fixed cavity, and a distribution box connected with the vibrating motor through a wire is arranged on the outer wall of the movable plate.
The utility model has the beneficial effects that:
1. Through setting up the hydraulic pressure and moving back a mechanism, after the mould, move and promote the fly leaf through controlling the piston rod operation of second pneumatic cylinder and drive first ejector pin and second ejector pin and carry out ejecting to the work piece of shaping, accomplish and move back a, spacing subassembly's setting, on the one hand make the fly leaf in the steady motion of horizontal direction, on the other hand, the stopper of setting can control the shrink stroke of fly leaf, make when carrying out the injection molding, the biggest shrink stroke of fly leaf can keep first ejector pin laminating terrace die's edge and second ejector pin just laminating movable mould's edge, can not influence the injection molding shape of work piece;
2. Through setting up fixed chamber in the inside of second ejector pin, fixed chamber's internally mounted vibrating motor, the block terminal through wire connection between the outer wall of fly leaf is installed and the vibrating motor, at the in-process of the ejecting work piece of die sinking, utilizes the operation of control vibrating motor to produce high frequency vibration, can make injection moulding's work piece break away from the end face of ejector pin, is difficult for forming the adhesion to more effectually carry out the piece processing of moving back to the work piece.
Drawings
Fig. 1 is a schematic diagram of the structure of the present utility model after mold closing.
Fig. 2 is a schematic diagram of the structure of the utility model after the mold is opened.
Fig. 3 is a schematic view of an installation structure of the ejector pin in the present utility model.
Fig. 4 is a cross-sectional view of a vibration motor mounting portion in the present utility model.
The reference sign is 1, the movable mould; 2, a fixed die, 3, a first hydraulic cylinder, 4, a cavity, 5, an injection hole, 6, a male die, 7, a movable plate, 8, a movable cavity, 9, a limit post, 10, a limit block, 11, a first ejector rod, 12, a second ejector rod, 13, a distribution box, 14, a fixed cavity, 15, a vibration motor, 16, a second hydraulic cylinder, 17, a cooling cavity, 18, a communicating cavity, 19, a cooling liquid inlet channel, 20, a cooling liquid outlet channel and 701, a limit hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The hydraulic workpiece withdrawing device of the injection mold comprises a movable mold 1 and a fixed mold 2 arranged on one side of the movable mold 1, wherein first hydraulic cylinders 3 are arranged inside two ends of the fixed mold 2, output ends of the two first hydraulic cylinders 3 are arranged in parallel, the output ends of the two first hydraulic cylinders 3 are fixedly connected with the outer wall of the end part of the movable mold 1, a cavity 4 is arranged in the middle of the fixed mold 2 and close to one side of the movable mold 1, a male mold 6 is arranged on the inner side of the outer wall of the middle of the movable mold 1 and is positioned in the cavity 4, an injection hole 5 communicated with the inside of the cavity 4 is formed in the movable mold 1, a cooling channel group is arranged outside the inside of the fixed mold 2 and close to the cavity 4, and a hydraulic workpiece withdrawing mechanism is arranged on one side of the inside of the movable mold 1 and close to the male mold 6.
As shown in fig. 1-2, the cooling channel group comprises two cooling cavities 17 symmetrically arranged at two outer sides of the cavity 4, a communication cavity 18 is communicated between the two cooling cavities 17, the positions of the communication cavity 18 and the injection hole 5 are staggered, one cooling cavity 17 is communicated with a cooling liquid inlet channel 19, the other cooling cavity 17 is communicated with a cooling liquid outlet channel 20, so that after injection molding is finished, circulating cooling liquid is introduced around the cavity 4, and cooling and forming are carried out on workpieces in the cavity 4.
As shown in fig. 1-4, the hydraulic part withdrawing mechanism comprises a movable plate 7 connected in the movable mould 1, a movable cavity 8 is arranged in the movable mould 1 corresponding to the outer part of the movable plate 7 in the horizontal direction, a second hydraulic cylinder 16 for driving the movable plate 7 to move horizontally is arranged on the outer wall of the end part of the movable mould 1, limit components are arranged at the positions of the two ends of the movable plate 7 in the movable mould 1, a first ejector rod 11 is fixedly connected to the middle part of the movable plate 7 in the horizontal direction, one end part of the first ejector rod 11 extends to the inner side of a male mould 6, second ejector rods 12 are connected to the outer wall of the movable plate 7 at the positions of the two sides of the first ejector rod 11, the second hydraulic cylinder 16 is fixedly connected with the movable mould 1 through bolts, the output end of the second hydraulic cylinder 16 is fixedly connected with the outer wall of the movable plate 7 through bolts, the limiting component comprises a limiting column 9 inserted at the end part of a movable plate 7 along the horizontal direction, one end part of the limiting column 9 is fixedly connected with the inner wall of a movable cavity 8, the other end part of the limiting column 9 is provided with a limiting block 10, the inside of the movable plate 7 is provided with a limiting hole 701 for the passing of the limiting column 9, the end part of a movable die 1 is provided with a through hole for the passing of a first ejector rod 11 and a second ejector rod 12, the inside of a male die 6 is provided with a through hole for the passing of the first ejector rod 11, the through hole is communicated with the inside of a cavity 4, the inside of at least one second ejector rod 12 is provided with a fixed cavity 14, a vibrating motor 15 is arranged in the fixed cavity 14, the outer wall of the movable plate 7 is provided with a distribution box 13 connected with the vibrating motor 15 through a wire, so that after the injection molding cooling molding is finished, the die is opened between the movable die 1 and a fixed die 2, the piston rod of the second hydraulic cylinder 16 stretches out to push the movable plate 7 to drive the first ejector rod 11 and the second ejector rod 12 to eject the formed workpiece, so that the workpiece is retreated.
Working principle: the utility model designs a hydraulic part withdrawing device of an injection mold, the specific structure is shown in the accompanying drawings 1-4 of the specification, when the hydraulic part withdrawing device is used, the piston rod of a first hydraulic cylinder 3 is controlled to shrink so as to enable a movable mold 1 and a fixed mold 2 to be closed, then injection molding treatment is carried out to the inside of a cavity 4 through an injection molding hole 5, after injection molding is finished, cooling liquid flows into a cooling channel group through an external circulating pump, the cooling liquid enters the inside of a cooling cavity 17 from a cooling liquid inlet channel 19, enters the inside of the cooling cavity 17 of the other part through a communicating cavity 18 so as to exchange heat around the cavity 4, and flows out from a cooling liquid outflow channel 20 to circulate, thus an injection molding workpiece is rapidly cooled and molded, after cooling molding, the piston rod of the first hydraulic cylinder 3 is controlled to stretch out to carry out mold opening treatment, after mold opening is carried out, a piston rod of a second hydraulic part withdrawing mechanism is controlled to drive a first ejector rod 11 and a second ejector rod 12 to eject a molded workpiece through controlling the piston rod of the movable plate 7, and the state shown in the accompanying drawing 2 is completed, a limit component is arranged, on one hand, the movable plate 7 in the horizontal direction is enabled to stably move, the other side of the movable plate 7 is enabled to move in the direction, the movable plate 7 is enabled to shrink and the edge of the movable ejector rod is enabled to be just in contact with the edge of the movable ejector rod 11 when the movable plate is controlled to shrink, and the movable ejector rod 7 is most closely, and the edge of the movable plate is not in the movable plate 1 is controlled to shrink the edge 1, and the edge of the movable plate is controlled to shrink edge is just in the movable plate 12, and is attached to the movable side 1; meanwhile, by arranging the fixed cavity 14 inside the second ejector rod 12, the vibrating motor 15 is arranged inside the fixed cavity 14, the distribution box 13 connected with the vibrating motor 15 through a wire is arranged on the outer wall of the movable plate 7, and in the process of opening the die and ejecting the workpiece, the operation of the vibration motor 15 is controlled to generate high-frequency vibration, so that the injection molded workpiece is separated from the end head of the ejector rod, and the workpiece is more effectively retreated.
In the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other without conflict;
Finally, the foregoing description of the preferred embodiment of the utility model is provided for the purpose of illustration only, and is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (7)
1. The utility model provides an injection mold hydraulic pressure moves back a device, includes movable mould (1) and installs cover half (2) in movable mould (1) one side, first pneumatic cylinder (3) are all installed to the inside both ends of cover half (2), and the output parallel arrangement of two first pneumatic cylinders (3), and the output and the tip outer wall fixed connection of movable mould (1) of two first pneumatic cylinders (3), the middle part of cover half (2) is close to one side position department of movable mould (1) and is provided with die cavity (4), the middle part outer wall of movable mould (1) is located the inboard of die cavity (4) and is provided with terrace die (6), the inside of movable mould (1) is provided with injection hole (5) with the inside intercommunication of die cavity (4), its characterized in that the inside that is close to the outside of die cavity (4) of cover half (2) is provided with cooling channel group, the inside that is close to one side of terrace die (6) of movable mould (1) is installed hydraulic pressure and moves back a mechanism.
2. The hydraulic workpiece withdrawing device of the injection mold according to claim 1, wherein the cooling channel group comprises two cooling cavities (17) symmetrically arranged at two outer sides of the cavity (4), a communication cavity (18) is communicated between the two cooling cavities (17), the communication cavity (18) is staggered from the injection hole (5), one cooling cavity (17) is communicated with a cooling liquid inlet channel (19) at the end part, and the other cooling cavity (17) is communicated with a cooling liquid outlet channel (20) at the end part.
3. The hydraulic workpiece withdrawing device of the injection mold is characterized in that the hydraulic workpiece withdrawing mechanism comprises a movable plate (7) connected inside a movable mold (1), a movable cavity (8) is formed in the movable mold (1) along the horizontal direction corresponding to the outer part of the movable plate (7), a second hydraulic cylinder (16) for driving the movable plate (7) to horizontally move is arranged on the outer wall of the end part of the movable mold (1), limiting assemblies are arranged inside the movable mold (1) at the positions of the two ends of the movable plate (7), a first ejector rod (11) is fixedly connected to the middle part of the movable plate (7) along the horizontal direction, one end part of the first ejector rod (11) extends to the inner side of a male mold (6), and second ejector rods (12) are connected to the positions of the two sides of the outer wall of the movable plate (7) located on the first ejector rod (11).
4. The hydraulic workpiece withdrawing device of the injection mold of claim 3, wherein the second hydraulic cylinder (16) is fixedly connected with the movable mold (1) through bolts, and the output end of the second hydraulic cylinder (16) is fixedly connected with the outer wall of the movable plate (7) through bolts.
5. The hydraulic workpiece withdrawing device of the injection mold of claim 3, wherein the limiting assembly comprises a limiting column (9) inserted into the end part of the movable plate (7) along the horizontal direction, one end part of the limiting column (9) is fixedly connected with the inner wall of the movable cavity (8), a limiting block (10) is arranged at the other end part of the limiting column (9), and a limiting hole (701) for the limiting column (9) to penetrate is formed in the movable plate (7).
6. The hydraulic ejection device for the injection mold according to claim 3, wherein the end part of the movable mold (1) is provided with a through hole for the first ejector rod (11) and the second ejector rod (12) to pass through, and the inside of the male mold (6) is provided with a through hole for the first ejector rod (11) to pass through, and the through hole is communicated with the inside of the cavity (4).
7. The hydraulic workpiece withdrawing device for injection mold according to claim 3, wherein at least one second ejector rod (12) is internally provided with a fixed cavity (14), a vibration motor (15) is arranged in the fixed cavity (14), and a distribution box (13) connected with the vibration motor (15) through a wire is arranged on the outer wall of the movable plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423021902.1U CN223657536U (en) | 2024-12-09 | 2024-12-09 | A hydraulic ejection device for injection molds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423021902.1U CN223657536U (en) | 2024-12-09 | 2024-12-09 | A hydraulic ejection device for injection molds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223657536U true CN223657536U (en) | 2025-12-12 |
Family
ID=97932306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202423021902.1U Active CN223657536U (en) | 2024-12-09 | 2024-12-09 | A hydraulic ejection device for injection molds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223657536U (en) |
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2024
- 2024-12-09 CN CN202423021902.1U patent/CN223657536U/en active Active
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