Ejection structure convenient to adjust for injection mold

Abstract

The utility model relates to the technical field of ejection structures for injection molds, and discloses a convenient-to-adjust ejection structure for an injection mold, which comprises an injection mold body and a controller, and a bottom plate is arranged at the bottom of a mold frame of the injection mold. According to the convenient-to-adjust ejection structure for the injection mold, by arranging the ejection mechanism, when a product needs to be ejected, the mold is placed on a proper injection molding machine to be fixed, an electric hydraulic push rod of the injection molding machine is started through a controller, a push plate is pushed, and the product is normally pushed out of a mold cavity after a plurality of whole ejection rods reach the ejection distance together; and then the high-precision electric telescopic rod is adjusted to be slowly pushed out by a proper distance according to the thickness of the product, and the lower ejector plate, the upper ejector plate and the ejector rods are slowly pushed out together, so that the product is secondarily ejected by a certain distance and is separated from the mold. Thick products can be slowly ejected twice by adjusting the electric push rod, and smooth mold stripping of the products is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of ejection structures for injection molds, in particular to an ejection structure for injection molds which is easy to adjust. Background Art

[0002] The ejection structure of an injection mold refers to a mechanism that uses a specific mechanical structure to eject the molded plastic parts and cast solids from the mold after the mold is closed and the injection is completed. This structure plays a vital role in the mold, ensuring that the product can be smoothly removed from the mold while ensuring product integrity and production efficiency.

[0003] The ejector structure currently on the market is the ejector pin ejector mechanism, which is the simplest and most common form of ejector pin ejector mechanism. Since the cross-section of the ejector pin is mostly circular, it is easy to manufacture and repair, and has a good ejection effect. It is widely used in production to eject the product by cooperating with the ejector plate and the ejector pin to push the mold out. However, after reaching the ejection stroke, the product in the mold cavity is still difficult to be ejected from the mold. Thicker products can only be buckled out, which makes it difficult to remove the product and easily damages the product. Therefore, it is proposed to have an ejector structure for injection molds that can slowly eject thicker products for a second time by adjusting the electric push rod after the product is ejected from the mold cavity, which is conducive to product ejection. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides an easily adjustable ejection structure for an injection mold. The structure has the advantage of being able to slowly eject thicker products a second time by adjusting an electric push rod after the product is ejected from the mold cavity, which is beneficial for product demolding. It solves the problem that after reaching the ejection stroke, the product in the mold cavity is still difficult to eject from the mold, and thicker products can only be buckled out, making it difficult to remove the product and easy to damage the product.

[0005] In order to achieve the above-mentioned purpose of being able to slowly eject a thicker product for a second time by adjusting the electric push rod after ejecting the product from the mold cavity, which is conducive to product demolding, the utility model provides the following technical solutions: an easily adjustable ejection structure for an injection mold, comprising an injection mold body and a controller, a bottom plate is provided at the bottom of the injection mold frame, a plurality of electric hydraulic push rods of the injection molding machine are provided at the bottom of the bottom plate, and an ejection mechanism is provided inside the injection mold body;

[0006] The ejection mechanism includes a push plate, a support plate, a connecting plate, a lower ejector plate, an upper ejector plate, bolts, an ejector rod and an ejector block. A push plate is provided on the top of the bottom plate, two support plates are fixedly installed on the top of the push plate, a connecting plate is fixedly installed on the top of the two support plates, a lower ejector plate is provided on the top of the connecting plate, an upper ejector plate is fixedly installed on the top of the lower ejector plate, a plurality of bolts are provided inside the upper ejector plate, a plurality of ejector rods are provided inside the upper ejector plate, and ejector blocks are fixedly installed on the tops of the plurality of ejector rods.

[0007] Furthermore, two fixing rods are fixedly installed inside the injection mold body, and limiting blocks are fixedly installed at the bottoms of the two fixing rods.

[0008] Furthermore, a plurality of bump blocks are fixedly mounted on the bottom of the push plate, and a mounting groove adapted to the plurality of bump blocks is provided on the bottom of the push plate.

[0009] Furthermore, two stretching grooves are provided inside the connecting plate, and a pull rod adapted to the two stretching grooves is fixedly mounted on the bottom of the lower ejector plate.

[0010] Furthermore, two high-precision electric telescopic rods are fixedly installed on the top of the base plate, and a movable groove adapted to the two high-precision electric telescopic rods is opened inside the connecting plate.

[0011] Furthermore, the controller is electrically connected to a plurality of electric hydraulic push rods of the injection molding machine and two high-precision electric telescopic rods through wires.

[0012] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0013] The ejection structure for an injection mold that is easy to adjust is provided with an ejection mechanism. When a product needs to be ejected, the mold is placed and fixed on a suitable injection molding machine. The electric hydraulic push rod of the injection molding machine is started by a controller to push the push plate so that a plurality of ejector pins of the whole body reach the ejection distance together and then the product is normally ejected from the mold cavity. Then, the high-precision electric telescopic rod is adjusted to slowly push out a suitable distance according to the thickness of the product. The lower ejector plate, the upper ejector plate and the plurality of ejector pins are slowly pushed out together, so that the product is ejected a distance for the second time and separated from the mold. The ejection mechanism can slowly eject a thicker product for the second time by adjusting the electric push rod after the product is ejected from the mold cavity, which is conducive to smooth demolding of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of the structure of the utility model;

[0015] Figure 2 This is a front sectional view of the structure of the utility model;

[0016] Figure 3For the utility model structure Figure 2 Enlarged view of point A in the middle.

[0017] In the figure: 1. Injection mold body; 2. Controller; 3. Bottom plate; 4. Electric hydraulic push rod of injection molding machine; 5. Ejector mechanism; 501. Push plate; 502. Support plate; 503. Connecting plate; 504. Lower ejector plate; 505. Upper ejector plate; 506. Bolt; 507. Ejector rod; 508. Ejector block; 6. Fixing rod; 601. Limit block; 7. Bump block; 701. Mounting slot; 8. Stretching slot; 801. Pull rod; 9. High-precision electric telescopic rod; 901. Movable slot. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3 In this embodiment, an ejection structure for an injection mold that is easy to adjust includes an injection mold body 1 and a controller 2. A bottom plate 3 is provided at the bottom of the injection mold frame 1. A plurality of electric hydraulic push rods 4 of the injection molding machine are provided at the bottom of the bottom plate 3. An ejection mechanism 5 is provided inside the injection mold body 1.

[0020] The ejection mechanism 5 includes a push plate 501, a support plate 502, a connecting plate 503, a lower ejector plate 504, an upper ejector plate 505, bolts 506, an ejector rod 507 and an ejector block 508. A push plate 501 is provided on the top of the bottom plate 3. Two support plates 502 are fixedly installed on the top of the push plate 501. A connecting plate 503 is fixedly installed on the top of the two support plates 502. A lower ejector plate 504 is provided on the top of the connecting plate 503. An upper ejector plate 505 is fixedly installed on the top of the lower ejector plate 504. Several bolts 506 are provided inside the upper ejector plate 505. Several ejector rods 507 are provided inside the upper ejector plate 505. Ejector blocks 508 are fixedly installed on the tops of the several ejector rods 507.

[0021] In the case implementation, two fixing rods 6 are fixedly installed inside the injection mold body 1, and the bottom of the two fixing rods 6 are fixedly installed with limit blocks 601. By setting two fixing rods 6 and limit blocks 601, the ejection distance of the ejector rod 507 can be limited, thereby forming a fixed ejection stroke.

[0022] In the case implementation, a number of collision blocks 7 are fixedly installed on the bottom of the push plate 501, and a mounting groove 701 adapted for the number of collision blocks 7 is provided on the bottom of the push plate 501. By setting up a number of collision blocks 7, the push plate 501 can be replaced to accept collisions, which is beneficial to the long-term use of the push plate 501.

[0023] In the case implementation, two stretching grooves 8 are opened inside the connecting plate 503, and a pull rod 801 adapted to the two stretching grooves 8 is fixedly installed at the bottom of the lower ejector plate 504. By setting two stretching grooves 8 and two pull rods 801, the lower ejector plate 504 and the upper ejector plate 505 can move and be restricted in the vertical direction to prevent the lower ejector plate 504 and the upper ejector plate 505 from tilting.

[0024] In the case implementation, the controller 4 is electrically connected to all electronic components in this patent through wires, so that all electronic components in this patent can be controlled by operating the controller 4.

[0025] During implementation, follow these steps:

[0026] 1) When the product needs to be ejected, place the mold on a suitable injection molding machine and fix it;

[0027] 2) Then, the controller 2 starts the electric hydraulic push rod 4 of the injection molding machine, pushing the push plate 501 so that the plurality of ejector pins 507 of the whole body reach the ejection distance together and then push the product out of the mold cavity normally;

[0028] 3) Then adjust the high-precision electric telescopic rod 9 and slowly push it out to a suitable distance according to the thickness of the product;

[0029] 4) Finally, the lower ejector plate 504, the upper ejector plate 505 and the plurality of ejector pins 507 are slowly pushed out together, so that the product is ejected a distance a second time and is separated from the mold.

[0030] To sum up, the ejection structure for the injection mold that is easy to adjust is provided with an ejection mechanism 5. When the product needs to be ejected, the mold is placed on a suitable injection molding machine and fixed. The electric hydraulic push rod 4 of the injection molding machine is started by the controller 2, and the push plate 501 is pushed so that the overall several ejector rods 507 reach the ejection distance together and then the product is normally pushed out of the mold cavity. Then, the high-precision electric telescopic rod 9 is adjusted according to the thickness of the product to slowly push out a suitable distance, and the lower ejector plate 504, the upper ejector plate 505 and the several ejector rods 507 are slowly pushed out together, so that the product is ejected a distance for the second time and separated from the mold. The ejection mechanism 5 can, after ejecting the product from the mold cavity, slowly eject the thicker product for the second time by adjusting the electric push rod, which is conducive to the smooth demolding of the product.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ejection structure for an injection mold that is easy to adjust, comprising an injection mold body (1) and a controller (2), characterized in that: The bottom of the injection mold body (1) is provided with a bottom plate (3), the bottom of the bottom plate (3) is provided with a plurality of electric hydraulic push rods (4) of the injection molding machine, and the interior of the injection mold body (1) is provided with an ejection mechanism (5); The ejection mechanism (5) comprises a push plate (501), a support plate (502), a connecting plate (503), a lower ejector plate (504), an upper ejector plate (505), a bolt (506), a push rod (507) and an ejection block (508). The top of the bottom plate (3) is provided with a push plate (501), the top of the push plate (501) is fixedly mounted with two support plates (502), the tops of the two support plates (502) are fixedly mounted with a connecting plate (503), the top of the connecting plate (503) is provided with a lower ejector plate (504), the top of the lower ejector plate (504) is fixedly mounted with an upper ejector plate (505), a plurality of bolts (506) are provided inside the upper ejector plate (505), a plurality of ejector rods (507) are provided inside the upper ejector plate (505), and the tops of the plurality of ejector rods (507) are fixedly mounted with ejection blocks (508).

2. The ejector structure for an injection mold that is easily adjustable according to claim 1, characterized in that: Two fixing rods (6) are fixedly installed inside the injection mold body (1), and limiting blocks (601) are fixedly installed at the bottoms of the two fixing rods (6).

3. The adjustable ejector structure for an injection mold according to claim 1, characterized in that: A plurality of bump blocks (7) are fixedly mounted on the bottom of the push plate (501), and a mounting groove (701) adapted to the plurality of bump blocks (7) is provided on the bottom of the push plate (501).

4. The adjustable ejector structure for an injection mold according to claim 1, characterized in that: Two stretching grooves (8) are provided inside the connecting plate (503), and a pull rod (801) adapted to the two stretching grooves (8) is fixedly installed at the bottom of the lower ejector plate (504).

5. The ejector structure for an injection mold that is easily adjustable according to claim 1, characterized in that: Two high-precision electric telescopic rods (9) are fixedly mounted on the top of the base plate (3), and a movable groove (901) adapted to the two high-precision electric telescopic rods (9) is provided inside the connecting plate (503).

6. The adjustable ejector structure for injection mold according to claim 5, characterized in that: The controller (2) is electrically connected to a plurality of injection molding machine electric hydraulic push rods (4) and two high-precision electric telescopic rods (9) via wires.

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