Ejection device of injection mold

Abstract

The utility model provides an ejection device of an injection mold, and relates to the technical field of injection molds. A hydraulic rod is connected to the middle of the upper portion of the upper mold, an injection molding hole is formed in the upper face of the upper mold, an upper mold groove is formed in the lower side of the upper mold, an upper mold male mold is arranged in the upper mold groove, a lower mold is arranged below the upper mold, and a lower mold groove is formed in the upper side of the lower mold. And no driving part is needed, so that the fault probability is reduced, and the operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection mold technical field, more specifically, especially, it is related to a kind of ejection device of injection mold. BACKGROUND

[0002] Injection molding is a method of industrial product production molding, mainly using rubber and plastic as raw material;Injection molding can be realized by injection molding die pressing method and die casting method, wherein injection molding is the most common application mode;Injection molding, also known as injection molding, is a molding method by injection and molding;Its advantages include fast production speed, high efficiency, operation can be automated, suitable for mass production and molding processing field of complex product shape;Injection molding is obtained by screw stirring plastic material, high-pressure injection into mold after complete melting, and cooling solidification, and the molded product needs to be demolded after molding, manual demolding is time-consuming and laborious, and the efficiency is low, and human resources are wasted, so an automatic demolding device is needed, but the existing automatic demolding device is complex in structure, and is complicated to operate, and difficult to repair when failure occurs. SUMMARY

[0003] In order to at least solve the above technical problems to some extent, the utility model provides an ejection device of injection mold.

[0004] The utility model discloses an ejection device of injection mold, which is achieved by the following specific technical means:

[0005] An ejection device of injection mold, comprising: an upper mold; a hydraulic rod is connected to the upper mold at an intermediate position above the upper mold, the upper mold is provided with an injection hole on the upper surface, the lower side of the upper mold is provided with an upper mold recess, an upper mold punch is arranged in the upper mold recess, a lower mold is arranged below the upper mold, and the upper side of the lower mold is provided with a lower mold recess.

[0006] Further, support grooves are arranged at the four corners of the upper side of the lower mold and the periphery of the lower mold recess, and support rods are arranged in the support grooves.

[0007] Further, a lower mold cavity bottom plate is arranged in the lower mold recess, and a connecting plate is arranged below the lower mold cavity bottom plate.

[0008] Further, the connecting plate is square, the lower mold cavity bottom plate is connected to the upper side of the connecting plate at an intermediate position, and the support rods are connected to the upper side of the four corners of the connecting plate.

[0009] Further, a lower mold bottom plate is arranged below the lower mold, and a sliding groove is arranged on the upper side of the lower mold bottom plate, and the connecting plate is arranged in the sliding groove.

[0010] Further, the sliding groove bottom plate is provided with nine telescopic rods, the telescopic rods are connected with the bottom surface of the connecting plate above, the telescopic rods are sleeved with the demolding spring outside, the demolding spring is connected with the bottom surface of the connecting plate above, and the demolding spring is connected with the lower side surface of the sliding groove below.

[0011] Further, the lower mold outer wall lower four corners are provided with fixing ears, the lower mold bottom plate outer wall upper four corners are provided with fixing ears, the middle positions of the fixing ears are provided with threaded holes, and the fixing screws are connected in the threaded holes.

[0012] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0013] 1、The utility model discloses a demolding spring is set up, when the upper mould moves away from the lower mould after product cooling, the demolding spring supports the connecting plate, the connecting plate supports the support rod and the lower mould cavity bottom plate and is lifted up, and product is ejected from the lower mould and realizes demolding, and any driving member is not needed, and the operation is simple and fast.

[0014] 2、The utility model discloses a telescopic rod is set up, when the upper mould is combined with the lower mould and moves down, the upper mould presses down the support rod, the support rod drives the lower mould cavity bottom plate to move down, and the connecting plate is supported by the telescopic rod when reaching a certain depth, prevents the instability of the demolding spring from causing the lower mould cavity bottom plate to shake and deforms the product.

[0015] 3、The utility model discloses a fixing ear and a fixing screw are set up, when the inside of the device fails, directly twist off the fixing screw and overhaul the inside of the device. DRAWINGS

[0016] Figure 1 It is the overall structure schematic diagram of the utility model.

[0017] Figure 2 It is the utility model's structure schematic diagram of looking up.

[0018] Figure 3 It is the internal structure schematic diagram of the utility model.

[0019] Figure 4 It is the internal structure schematic diagram of the utility model and looks up.

[0020] Figure 5 It is the lower mould section structure schematic diagram of the utility model.

[0021] In the drawing, the corresponding relationship of component name and drawing number is as follows:

[0022] 1, the upper mould;101, the upper mould recess;102, the upper mould punch;

[0023] 2, the hydraulic rod;

[0024] 3, injection hole;

[0025] 4, lower mold; 401, lower mold groove; 402, support groove;

[0026] 5, lower mold base plate;

[0027] 6, fixing lug;

[0028] 7, fixing bolt;

[0029] 8, support rod;

[0030] 9, lower mold cavity bottom plate;

[0031] 10, connecting plate; 1001, sliding groove;

[0032] 11, telescopic rod;

[0033] 12, demolding spring. DETAILED DESCRIPTION

[0034] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0035] Example:

[0036] As shown in the accompanying Figure 1 to the accompanying Figure 5 :

[0037] The utility model provides a kind of ejection device of injection mold, it include: upper mold 1;Upper mold 1 upper middle position is connected hydraulic rod 2, and upper mold 1 upper surface is equipped with injection hole 3, and the lower side of upper mold 1 is equipped with upper mold groove 101, and upper mold groove 101 is equipped with upper mold punch 102, and the lower side of upper mold 1 is equipped with lower mold 4, and the upper side of lower mold 4 is equipped with lower mold groove 401.

[0038] Among them, as Figure 5As shown, the lower mold 4 has support grooves 402 at the four corners of the lower mold groove 401 on its upper side. Support rods 8 are installed in the support grooves 402. A lower mold cavity bottom plate 9 is installed in the lower mold groove 401. A connecting plate 10, which is square, is installed below the lower mold cavity bottom plate 9. The upper center of the connecting plate 10 connects to the lower mold cavity bottom plate 9, and the upper sides of the four corners of the connecting plate 10 connect to the bottom of the support rods 8. A lower mold bottom plate 5 is installed below the lower mold 4. A sliding groove 1001 is installed on the upper side of the lower mold bottom plate 5. The connecting plate 10 is placed in the sliding groove 1001. Nine telescopic rods 11 are installed on the bottom plate of the sliding groove 1001. The top of the telescopic rods 11 connects to the bottom surface of the connecting plate 10, and a demolding spring 12 is sleeved around the telescopic rods 11. The demolding spring 12 is connected to the bottom surface of the connecting plate 10 above, and the demolding spring 12 is connected to the lower side of the sliding groove 1001 below. When the upper mold 1 moves down and merges with the lower mold 4, the upper mold 1 presses down the support rod 8. The support rod 8 drives the lower mold cavity bottom plate 9 to move down. When it reaches a certain depth, the telescopic rod 11 supports the connecting plate 10 to prevent the lower mold cavity bottom plate 9 from shaking due to the instability of the demolding spring 12, which would cause deformation to the product. After the product cools down, when the upper mold 1 moves up and away from the lower mold 4, the demolding spring 12 supports the connecting plate 10. The connecting plate 10 supports the support rod 8 and the lower mold cavity bottom plate 9 and pushes them upward to push the product out of the lower mold 4 to achieve demolding. No driving components are needed, and the operation is simple and quick.

[0039] Among them, such as Figure 1 As shown, the lower mold 4 has four fixing ears 6 at the lower corners of the outer wall and the lower mold base plate 5 has four fixing ears 6 at the upper corners of the outer wall. The fixing ears 6 have threaded holes in the middle, and fixing bolts 7 pass through the threaded holes for connection and fixation. When a fault occurs inside the device, the fixing bolts 7 can be unscrewed directly to inspect the inside of the device.

[0040] The specific usage and function of this embodiment are as follows:

[0041] In this invention, the upper mold 1 moves down and merges with the lower mold 4. The upper mold 1 presses down the support rod 8, and the support rod 8 drives the lower mold cavity bottom plate 9 to move down. When it reaches a certain depth, the telescopic rod 11 supports the connecting plate 10. The fully molten injection molding material is injected into the mold through the injection hole 3. After the product cools down, the upper mold 1 moves up and away from the lower mold 4. The demolding spring 12 supports the connecting plate 10, and the connecting plate 10 supports the support rod 8 and the lower mold cavity bottom plate 9 to push them upward, thus ejecting the product from the lower mold 4 and achieving demolding.

[0042] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. An ejection device for an injection mold, comprising: The upper mold (1); its characterized in that: the upper mold (1) upper middle position connects hydraulic rod (2), the upper mold (1) upper surface is equipped with injection hole (3), the lower side of the upper mold (1) is equipped with upper mold recess (101), the upper mold recess (101) is equipped with upper mold punch (102), the lower side of the upper mold (1) is equipped with lower mold (4), the upper side of the lower mold (4) is equipped with lower mold recess (401).

2. An ejection device for an injection mold as defined in claim 1, characterized in that: The upper side of the lower mold (4), the lower mold recess (401) is equipped with support groove (402) in the four corners of the periphery, and the support groove (402) is equipped with support rod (8) inside.

3. An ejection apparatus for an injection mold as defined in claim 1, characterized in that: The lower mold recess (401) is equipped with lower mold cavity bottom plate (9), and the lower side of the lower mold cavity bottom plate (9) is equipped with connecting plate (10).

4. An ejection device for an injection mold as defined in claim 3, characterized in that: The connecting plate (10) is square, the lower side of the connecting plate (10) is equipped with support rod (8) in the four corners, and the lower side of the connecting plate (10) is equipped with support rod (8) in the four corners.

5. A ejection device for injection molds as claimed in any of the claims 1-4, characterized in that: The lower side of the lower mold (4) is equipped with lower mold bottom plate (5), and the upper side of the lower mold bottom plate (5) is equipped with sliding groove (1001), and the connecting plate (10) is arranged in the sliding groove (1001).

6. An ejection device for an injection mold as defined in claim 5, characterized in that: The bottom plate of the sliding groove (1001) is equipped with nine telescopic rods (11), the upper side of the telescopic rod (11) is connected with the bottom surface of the connecting plate (10), the telescopic rod (11) is equipped with demolding spring (12) in the periphery, the upper side of the demolding spring (12) is connected with the bottom surface of the connecting plate (10), and the lower side of the demolding spring (12) is connected with the lower side of the sliding groove (1001).

7. An ejection apparatus for an injection mold according to claim 1, wherein: The lower side of the lower mold (4) is equipped with fixed lug (6) in the four corners of the outer wall, the upper side of the outer wall of the lower mold bottom plate (5) is equipped with fixed lug (6) in the four corners, the fixed lug (6) is equipped with threaded hole in the middle position, and the threaded hole is connected with fixed bolt (7) penetratingly.

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