A mold ejection mechanism

Abstract

The utility model discloses a die ejection mechanism belongs to die technical field, aims at solving the ejection mechanism under prior art through the installation motor drive for the component of ejecting and carries out work piece ejection to the higher cost of maintenance replacement when the ejection mechanism is damaged, and further increased the operation cost of enterprise. Including base, the upside of base is installed with lower mould, the upper end of lower mould is provided with the top plate, the downside of top plate is installed with upper mould, the inside of lower mould is provided with the die cavity bottom plate of die cavity, the upper end of base is provided with cooling mechanism, the inside of lower mould is provided with ejection mechanism, and ejection mechanism includes the fixed plate connected in lower mould inside left and right two ends, the inside front end of fixed plate is installed with bearing, the inboard fixed connection of bearing has round bar, the one end fixed connection of round bar outside far away lower mould center has first gear, the other end fixed connection of round bar has second gear.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically relating to a mold ejection mechanism. Background Technology

[0002] A mold is a tool that uses a specific shape to shape a blank into a part with a certain shape and size under the action of external force. After the mold is processed, the mold needs to eject the workpiece formed inside the lower mold base. Usually, an ejection mechanism is installed inside the mold to eject the workpiece.

[0003] For example, patent CN222712746U discloses a mold ejection mechanism. By designing a slow ejection mechanism, after the mold has processed and shaped the workpiece, the screw rotates to move two moving frames towards each other. When the two moving frames move, they drive two sets of mounting slides to move towards each other. The sliding of the mounting slides drives the support inclined rods to adjust and tilt at a certain angle. The ends of the two sets of support inclined rods are adjusted to drive the support slide to slide on the outer surface of the support slide rail. The moving adjustment plate is moved upward steadily and slowly, and the ejector rod and the top plate are moved upward. The top plate moves inside the lower mold base to evenly apply force to the processed workpiece and slowly eject it. When the processed workpiece dissipates heat slowly, it is less likely to cause damage to the workpiece during ejection. This improves the ejection operation effect and the ejection quality of the workpiece when the main body of the mold is installed inside the mold.

[0004] However, this ejection mechanism uses a motor to drive the ejection components to eject the workpiece, which means that the repair and replacement costs are high when the ejection mechanism is damaged, thus increasing the company's operating costs. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a mold ejection mechanism, which aims to solve the problem that the existing ejection mechanism uses a motor to drive the ejection component to eject the workpiece, resulting in high maintenance and replacement costs when the ejection mechanism is damaged, thereby increasing the operating costs of enterprises.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides a mold ejection mechanism, including a base, a lower mold mounted on the upper side of the base, a top plate provided at the upper end of the lower mold, an upper mold mounted on the lower side of the top plate, a mold cavity bottom plate provided inside the mold cavity of the lower mold, a cooling mechanism provided at the upper end of the base, an ejection mechanism provided inside the lower mold, and the ejection mechanism including a fixing plate connected to the left and right ends inside the lower mold, a bearing mounted on the front end of the inner side of the fixing plate, a round rod fixedly connected to the inner side of the bearing, a first gear fixedly connected to the outer end of the round rod away from the center of the lower mold, a second gear fixedly connected to the other end of the round rod, a first toothed rod provided at the rear end of the first gear, a first U-shaped frame connected to the outer end of the first toothed rod, a second toothed rod provided at the rear end of the second gear, a second U-shaped frame connected to the outer side of the second toothed rod, and L-shaped rods symmetrically fixedly connected below the second toothed rods at the left and right ends inside the lower mold.

[0009] Furthermore, the cooling mechanism includes an air pump installed at the rear right side of the base, an air inlet pipe fixedly connected to the lower right rear end of the lower mold, an exhaust pipe fixedly connected to the lower left front end of the lower mold, and a heat sink fixedly connected to the lower side of the mold cavity bottom plate.

[0010] Furthermore, the lower mold has symmetrical grooves at the middle positions of its left and right ends. The rear side of the fixing plate is fixedly connected to the upper rear end of the groove. The outer end of the first gear meshes with the front end of the first gear, and the outer end of the second gear meshes with the front end of the second gear.

[0011] Furthermore, the end of the first U-shaped frame is fixedly connected to the side of the groove away from the center of the lower mold, the outer side of the first toothed rod is slidably connected to the inner side of the first U-shaped frame, the end of the second U-shaped frame is fixedly connected to the side of the groove near the center of the lower mold, the outer side of the second toothed rod is slidably connected to the inner side of the second U-shaped frame, and the upper end of the first toothed rod is fixedly connected to the left or right end of the lower side of the upper mold.

[0012] Furthermore, the diameter of the first gear is larger than the diameter of the second gear.

[0013] Furthermore, a through groove is provided below the position between the only mold cavity and the groove inside the lower mold. The front and rear sides of the horizontal part of the L-shaped rod are slidably connected to the front and rear ends of the inner side of the through groove. The upper end of the L-shaped rod is fixedly connected to the left or right end of the lower side of the mold cavity bottom plate.

[0014] Furthermore, an air inlet is provided at the right end of the lower mold, located to the left of the air inlet pipe, and an exhaust hole is provided at the right end of the lower mold, located to the right of the exhaust pipe. The right end of the air inlet pipe is fixedly connected to the air outlet of the air pump.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention, by setting up an ejection mechanism, allows the first gear to move upward when the upper mold is lifted after the workpiece is formed inside the lower mold cavity. This causes the first gear and the second gear to rotate together, driving the second gear to move upward as well. This, in turn, causes the L-shaped rod to move upward along the through groove, causing the bottom plate of the mold cavity to move upward. Since the diameter of the second gear is smaller than that of the first gear, the upward speed of the bottom plate of the mold cavity is less than that of the upper mold. After the upper mold moves to the required position, the bottom plate of the mold cavity can lift the workpiece inside the lower mold cavity, making it easier for workers to remove the material. Thus, the ejection mechanism lifts the workpiece out of the lower mold by the rise of the upper mold, eliminating the need for motors or other mechanical drives and reducing the maintenance and replacement costs of the ejection mechanism.

[0018] By setting up a cooling mechanism, when the workpiece inside the lower mold cavity is cooled and formed, the heat sink will absorb the heat from the workpiece above the bottom plate of the mold cavity, so that the workpiece can be formed quickly. At the same time, by starting the air pump, external air is drawn into the lower part of the mold cavity bottom plate through the air inlet pipe and air inlet hole, and the original air at the lower end of the mold cavity bottom plate is discharged through the exhaust hole and exhaust pipe. This can accelerate the heat absorption rate of the heat sink from top to bottom, thereby accelerating the cooling rate of the workpiece at the upper part of the mold cavity bottom plate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the lower mold structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the lower mold of this utility model;

[0023] Figure 4 for Figure 3 Enlarged view of point A.

[0024] The markings in the attached diagram are as follows: 1. Base; 2. Lower mold; 3. Top plate; 4. Upper mold; 5. Mold cavity bottom plate; 601. Air pump; 602. Air inlet pipe; 603. Exhaust pipe; 604. Heat sink; 701. Fixing plate; 702. Bearing; 703. Round rod; 704. First gear; 705. Second gear; 706. First rack; 707. First U-shaped frame; 708. Second rack; 709. Second U-shaped frame; 710. L-shaped rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This specific embodiment is a mold ejection mechanism, the structural diagram of which is shown below. Figure 1 and Figure 2 As shown, the system includes a base 1, a lower mold 2 mounted on the upper side of the base 1, a top plate 3 at the upper end of the lower mold 2, an upper mold 4 mounted on the lower side of the top plate 3, a mold cavity bottom plate 5 inside the mold cavity of the lower mold 2, a cooling mechanism at the upper end of the base 1, the cooling mechanism including an air pump 601 mounted at the rear right end of the upper side of the base 1, an air inlet pipe 602 fixedly connected to the lower right rear end of the lower mold 2, an exhaust pipe 603 fixedly connected to the lower left front end of the lower mold 2, a heat sink 604 fixedly connected to the lower side of the mold cavity bottom plate 5, and an air inlet hole located to the left of the air inlet pipe 602 at the right end of the lower mold 2. An exhaust port is provided on the right side of the air pipe 603. The right end of the air inlet pipe 602 is fixedly connected to the air outlet of the air pump 601. When the workpiece inside the mold cavity of the lower mold 2 is cooled and formed, the heat sink 604 will absorb the heat from the workpiece above the mold cavity bottom plate 5, so that the workpiece is formed quickly. At the same time, by starting the air pump 601, the external air is drawn into the mold cavity below the mold cavity bottom plate 5 through the air inlet pipe 602 and the air inlet port. The original air at the bottom of the mold cavity bottom plate 5 is discharged through the exhaust port and the exhaust pipe 603, which can accelerate the heat absorption rate of the heat sink 604 from top to bottom, thereby accelerating the cooling rate of the workpiece at the top of the mold cavity bottom plate 5.

[0027] Cooperate Figure 3 and Figure 4The lower mold 2 is equipped with an ejection mechanism, which includes a fixed plate 701 connected to the left and right ends of the lower mold 2. A bearing 702 is installed at the front end of the fixed plate 701. A round rod 703 is fixedly connected to the inner side of the bearing 702. A first gear 704 is fixedly connected to the outer end of the round rod 703 away from the center of the lower mold 2. A second gear 705 is fixedly connected to the other end of the round rod 703. A first toothed rod 706 is provided at the rear end of the first gear 704. A first U-shaped frame 707 is connected to the outer end of the first toothed rod 706. A second toothed rod 708 is provided at the rear end of the second gear 705. Grooves are symmetrically opened at the middle position of the left and right ends of the lower mold 2. The rear side of the fixed plate 701 is fixedly connected to the upper rear end of the inner side of the groove. The outer end of the first gear 704 meshes with the front end of the first toothed rod 706. The outer end of the second gear 705 meshes with the front end of the second toothed rod 708. The outer side of the second toothed rod 708 is connected to a second U-shaped frame 709. The end of the first U-shaped frame 707 is fixedly connected to the side of the groove away from the center of the lower mold 2. The outer side of the first toothed rod 706 is slidably connected to the inner side of the first U-shaped frame 707. The end of the second U-shaped frame 709 is fixedly connected to the side of the groove near the center of the lower mold 2. The outer side of the second toothed rod 708 is slidably connected to the inner side of the second U-shaped frame 709. The upper end of the first toothed rod 706 is fixedly connected to the left, right, or right end of the lower side of the upper mold 4. Thus, when the upper mold 4 is raised, it will drive the first toothed rod 706 to move upward, and at the same time drive the first gear 704 to rotate, causing the round rod 703 and the second gear 705 to rotate together, thereby driving the second toothed rod 708 to move upward together.

[0028] In this design, L-shaped rods 710 are symmetrically fixedly connected below the second toothed rods 708 at both ends of the lower mold 2. The diameter of the first gear 704 is larger than the diameter of the second gear 705. A through groove is provided below the position between the only mold cavity and the groove inside the lower mold 2. The front and rear sides of the horizontal part of the L-shaped rod 710 are slidably connected to the front and rear ends of the inner side of the through groove. The upper end of the L-shaped rod 710 is fixedly connected to the left or right end of the lower side of the mold cavity bottom plate 5. After the workpiece is formed inside the cavity of the lower mold 2, when the upper mold 4 is lifted, the first toothed rod 706 will move upward together, causing the first gear 704 and the second gear 705 to rotate together, driving the second toothed rod 708 to move upward together, which in turn drives the L-shaped rod 710 to move upward along the through groove, causing the bottom plate 5 of the cavity to move upward. Since the diameter of the second gear 705 is smaller than the diameter of the first gear 704, the upward speed of the bottom plate 5 of the cavity is less than the upward speed of the upper mold 4. After the upper mold 4 moves to the required position, the bottom plate 5 of the cavity can lift the workpiece inside the cavity of the lower mold 2, so that the workers can pick up the material. Thus, the ejection mechanism is driven by the rising of the upper mold 4 to lift the workpiece in the lower mold 2, without the need for motors or other machinery to drive it, thereby reducing the maintenance and replacement cost of the ejection mechanism.

[0029] Working principle: After the workpiece inside the lower mold 2 cavity cools and forms, the top plate 3 is lifted again, causing the upper mold 4 to move upward. At the same time, the first toothed rod 706 moves upward, causing the first gear 704 to rotate, so that the round rod 703 and the second gear 705 rotate together, causing the second toothed rod 708 to move upward, which in turn causes the L-shaped rod 710 to move upward along the through groove, causing the bottom plate 5 of the mold cavity to move upward, lifting the workpiece inside the lower mold 2 cavity. Then, the worker removes the lifted workpiece.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold ejection mechanism, comprising a base (1), characterized in that, A lower mold (2) is installed on the upper side of the base (1). A top plate (3) is provided at the upper end of the lower mold (2). An upper mold (4) is installed on the lower side of the top plate (3). A mold cavity bottom plate (5) is provided inside the mold cavity of the lower mold (2). A cooling mechanism is provided at the upper end of the base (1). An ejection mechanism is provided inside the lower mold (2). The ejection mechanism includes a fixing plate (701) connected to the left and right ends inside the lower mold (2). A bearing (702) is installed at the front end of the inner side of the fixing plate (701). A round rod (703) is fixedly connected to the inner side of the bearing (702). The outer side of the round rod (703) A first gear (704) is fixedly connected to one end of the lower mold (2) away from the center, and a second gear (705) is fixedly connected to the other end of the round rod (703). A first rack (706) is provided at the rear end of the first gear (704), and a first U-shaped frame (707) is connected to the outer end of the first rack (706). A second rack (708) is provided at the rear end of the second gear (705), and a second U-shaped frame (709) is connected to the outer side of the second rack (708). L-shaped rods (710) are fixedly connected symmetrically below the second racks (708) on the left and right sides inside the lower mold (2).

2. The mold ejection mechanism according to claim 1, characterized in that, The cooling mechanism includes an air pump (601) installed on the upper right rear of the base (1), an air inlet pipe (602) fixedly connected to the lower right rear end of the lower mold (2), an exhaust pipe (603) fixedly connected to the lower left front end of the lower mold (2), and a heat sink (604) fixedly connected to the lower side of the mold cavity bottom plate (5).

3. The mold ejection mechanism according to claim 1, characterized in that, The lower mold (2) has symmetrical grooves at the middle positions of the left and right ends. The rear side of the fixing plate (701) is fixedly connected to the upper rear end of the inner side of the groove. The outer end of the first gear (704) meshes with the front end of the first rack (706), and the outer end of the second gear (705) meshes with the front end of the second rack (708).

4. The mold ejection mechanism according to claim 1, characterized in that, The end of the first U-shaped frame (707) is fixedly connected to the side of the groove away from the center of the lower mold (2). The outer side of the first toothed rod (706) is slidably connected to the inner side of the first U-shaped frame (707). The end of the second U-shaped frame (709) is fixedly connected to the side of the groove close to the center of the lower mold (2). The outer side of the second toothed rod (708) is slidably connected to the inner side of the second U-shaped frame (709). The upper end of the first toothed rod (706) is fixedly connected to the left or right end of the lower side of the upper mold (4).

5. The mold ejection mechanism according to claim 3, characterized in that, The diameter of the first gear (704) is larger than the diameter of the second gear (705).

6. The mold ejection mechanism according to claim 1, characterized in that, A through groove is provided below the position between the only mold cavity and the groove inside the lower mold (2). The front and rear sides of the horizontal part of the L-shaped rod (710) are slidably connected to the front and rear ends of the through groove. The upper end of the L-shaped rod (710) is fixedly connected to the left or right end of the bottom plate (5) of the mold cavity.

7. A mold ejection mechanism according to claim 2, characterized in that, An air inlet is provided at the right end of the lower mold (2) to the left of the air inlet pipe (602), and an exhaust hole is provided at the right of the exhaust pipe (603). The right end of the air inlet pipe (602) is fixedly connected to the air outlet of the air pump (601).

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