Inclined top inner reversing core-pulling structure

Abstract

The utility model discloses a reversing core-pulling structure in a pitched roof. The reversing core-pulling structure comprises an upper die and a lower die, a first inclined ejection mechanism is arranged in the lower mold; a second pitched roof mechanism is movably arranged in the first pitched roof mechanism; when the upper mold and the lower mold are opened; the first inclined ejection mechanism is ejected out, and the second inclined ejection mechanism is ejected out from the inner side surface of the first inclined ejection mechanism while the first inclined ejection mechanism is ejected out. According to the utility model, through the design of the nested inclined ejection mechanisms, namely, the second inclined ejection mechanism is movably arranged in the first inclined ejection mechanism, the two inclined ejection mechanisms can simultaneously or sequentially eject out when the mold is opened, so that the multi-direction core-pulling requirements of complex parts are met; by means of the design, cost increase caused by two different core-pulling structures of the mold is avoided, demolding of an inverted buckle part of a product is achieved in a small space, demolding efficiency is improved, meanwhile, the overall structure of the mold is optimized, the size of the mold is reduced, the problem that a mold frame is too large is solved, and mold cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to car lamp mould injection technology field especially is a kind of oblique top inner reversing core-pulling structure. BACKGROUND

[0002] In the car lamp mould injection industry, in order to realize the forming and demolding of complex parts, it is often necessary to design exquisite core-pulling structure. The traditional core-pulling structure can only realize the ejection of single direction, and for the plastic products with complex internal structure or needing multidirectional demolding, such structure is not satisfactory; Especially when dealing with parts with embedded structure or inclined features, single core-pulling mechanism is difficult to meet the demolding requirement, which is easy to cause product deformation, damage or smooth demolding.

[0003] In order to overcome the above-mentioned defects, the industry begins to explore more flexible core-pulling structure, among which the oblique top structure is concerned because it can eject the product along the inclined surface. However, the traditional oblique top structure can only eject along a preset inclined surface direction, and for the mould needing core-pulling in different directions, there is still certain limitation.

[0004] Therefore, it is necessary to design an oblique top inner reversing core-pulling structure to solve the above problems. CONTENT OF UTILITY MODEL

[0005] The utility model aims at the deficiency of prior art, and provides an oblique top inner reversing core-pulling structure.

[0006] The technical scheme of the utility model is: an oblique top inner reversing core-pulling structure, comprising an upper die and a lower die; the lower die is provided with a first oblique top mechanism; the first oblique top mechanism is movably provided with a second oblique top mechanism; when the upper die and the lower die are opened, the first oblique top mechanism is ejected, and the second oblique top mechanism is ejected from the inner side of the first oblique top mechanism at the same time.

[0007] The first oblique top mechanism comprises a first oblique top block; the lower die is provided with a first positioning groove matched with the first oblique top block; the bottom of the lower die is slidably connected with a first oblique top rod extending into the first positioning groove and connected with the first oblique top block; the bottom of the first oblique top rod is connected with an oblique top sliding seat.

[0008] The inner side wall of the first oblique top block is provided with a second positioning groove; the second oblique top mechanism comprises a second oblique top block, a guide rail and a second oblique top rod; the second oblique top block is movably arranged in the second positioning groove; one end of the second oblique top rod is fixedly connected with the second oblique top block, and the other end is slidably connected with the guide rail through the first oblique top block.

[0009] The guide rail is obliquely provided with a T-shaped groove, and the included angle between the T-shaped groove and the horizontal plane is greater than the included angle between the outer side surface of the first oblique top block and the horizontal plane.

[0010] The guide rail is fixed to the lower mold by screws.

[0011] The present invention has the following beneficial effects by adopting the above technical solution: (1) The present invention uses a nested inclined ejector mechanism design, that is, a second inclined ejector mechanism is provided in the first inclined ejector mechanism, so that when the mold is opened, the two inclined ejector mechanisms can be ejected simultaneously or sequentially, thereby meeting the multi-directional core pulling requirements of complex parts; this design not only avoids the cost increase caused by two different core pulling structures, but also realizes the demolding of the undercut part of the product in a small space, improving the demolding efficiency. At the same time, this structure optimizes the overall structure of the mold, reduces the size of the mold, improves the problem of the mold frame being too large, and reduces the mold cost.

[0012] (2) The first inclined ejector mechanism of this utility model ensures stability and reliability during the ejection process through the cooperation of the first inclined ejector block and the first positioning groove, and the sliding connection of the first inclined ejector rod and the inclined ejector slide. At the same time, the second inclined ejector mechanism further enhances the stability and reliability of the structure through the cooperation of the second inclined ejector block and the second positioning groove, and the sliding connection of the second inclined ejector rod and the guide rail, avoiding problems such as damage or deformation of parts that may occur during the ejection process.

[0013] (3) The T-shaped groove is inclined on the guide rail of this utility model, and the angle between the T-shaped groove and the horizontal plane is greater than the angle between the outer side of the first inclined top block and the horizontal plane. This design not only helps to ensure the stability and reliability of the second inclined top mechanism in the ejection process, but also reduces the frictional resistance in the ejection process, thereby improving the ejection efficiency.

[0014] (4) The guide rail of this utility model is fixed to the lower mold by screws. This fixing method not only ensures the stability of the guide rail, but also facilitates the subsequent disassembly and maintenance work. When it is necessary to maintain the mold or replace parts, the guide rail and related parts can be easily removed by simply removing the screws, which greatly reduces maintenance costs and time costs. Attached Figure Description

[0015] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] The labels in the attached diagram are:

[0018] Upper die 1, lower die 2, first inclined ejector mechanism 3, first inclined ejector block 3-1, first inclined ejector rod 3-2, inclined ejector slide 3-3, second positioning groove 3-4, second inclined ejector mechanism 4, second inclined ejector block 4-1, guide rail 4-2, second inclined ejector rod 4-3. DETAILED DESCRIPTION

[0019] (Example 1)

[0020] See Figure 1 The inclined ejector inner reversing core-pulling structure of the embodiment comprises an upper die 1 and a lower die 2; the lower die 2 is internally provided with a first inclined ejector mechanism 3; the first inclined ejector mechanism 3 is movably provided with a second inclined ejector mechanism 4; when the upper die 1 and the lower die 2 are opened, the first inclined ejector mechanism 3 is ejected, and the second inclined ejector mechanism 4 is ejected from the inner side of the first inclined ejector mechanism 3 at the same time.

[0021] Further, the first inclined ejector mechanism 3 comprises a first inclined ejector block 3-1; the lower die 2 is provided with a first positioning groove 2-1 matched with the first inclined ejector block 3-1; the bottom of the lower die 2 is slidably connected with a first inclined ejector rod 3-2 extending into the first positioning groove 2-1 and connected with the first inclined ejector block 3-1; the bottom of the first inclined ejector rod 3-2 is connected with an inclined ejector slide 3-3.

[0022] Further, the inner side wall of the first inclined ejector block 3-1 is provided with a second positioning groove 3-4; the second inclined ejector mechanism 4 comprises a second inclined ejector block 4-1, a guide rail 4-2 and a second inclined ejector rod 4-3; the second inclined ejector block 4-1 is movably arranged in the second positioning groove 3-4; one end of the second inclined ejector rod 4-3 is fixedly connected with the second inclined ejector block 4-1, and the other end is slidably connected with the guide rail 4-2 through the first inclined ejector block 3-1.

[0023] Further, the guide rail 4-2 is obliquely provided with a T-shaped groove, and the included angle between the T-shaped groove and the horizontal plane is greater than the included angle between the outer side surface of the first inclined ejector block 3-1 and the horizontal plane. This design not only helps to ensure the stability and reliability of the second inclined ejector mechanism 4 during the ejection process, but also reduces the frictional resistance during the ejection process, thereby improving the ejection efficiency.

[0024] Further, the guide rail 4-2 is fixed to the lower die 2 by screws. This fixing mode not only ensures the stability of the guide rail 4-2, but also facilitates the subsequent disassembly and maintenance work; when the mold needs to be maintained or parts need to be replaced, the guide rail 4-2 and related parts can be easily removed by disassembling the screws, greatly reducing the maintenance cost and time cost.

[0025] The slanted ejection inner reversing core structure provided by the embodiment has the characteristics of nested slanted ejection mechanism design, optimized guide rail 4-2 design and convenient installation and maintenance, significantly improves the demolding efficiency and flexibility of the mold, enhances the stability and reliability of the mold, reduces the maintenance cost and time cost, and provides a more efficient, reliable and flexible solution for the production of plastic products.

[0026] The above specific embodiments further specifically describe the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only for specific embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A sloping top internal reversing core-pulling structure, characterized in that: It includes an upper mold (1) and a lower mold (2); the lower mold (2) is provided with a first inclined ejector mechanism (3); the first inclined ejector mechanism (3) is movably provided with a second inclined ejector mechanism (4); when the upper mold (1) and the lower mold (2) open, the first inclined ejector mechanism (3) ejects out, and the second inclined ejector mechanism (4) ejects out from the inner side of the first inclined ejector mechanism (3) at the same time as the first inclined ejector mechanism (3) ejects out.

2. The inclined top internal reversing core-pulling structure according to claim 1, characterized in that: The first inclined ejector mechanism (3) includes a first inclined ejector block (3-1); the lower mold (2) is provided with a first positioning groove (2-1) that cooperates with the first inclined ejector block (3-1); the bottom of the lower mold (2) is slidably connected to a first inclined ejector rod (3-2) that extends into the first positioning groove (2-1) and connects to the first inclined ejector block (3-1); the bottom of the first inclined ejector rod (3-2) is connected to an inclined ejector slide (3-3).

3. The inclined top internal reversing core-pulling structure according to claim 2, characterized in that: The inner sidewall of the first inclined top block (3-1) is provided with a second positioning groove (3-4); the second inclined top mechanism (4) includes a second inclined top block (4-1), a guide rail (4-2), and a second inclined top rod (4-3); the second inclined top block (4-1) is movably disposed in the second positioning groove (3-4); one end of the second inclined top rod (4-3) is fixedly connected to the second inclined top block (4-1), and the other end passes through the first inclined top block (3-1) and is slidably connected to the guide rail (4-2).

4. The inclined top internal reversing core-pulling structure according to claim 3, characterized in that: The guide rail (4-2) is provided with an inclined T-shaped groove, and the angle between the T-shaped groove and the horizontal plane is greater than the angle between the outer side of the first inclined top block (3-1) and the horizontal plane.

5. The inclined top internal reversing core-pulling structure according to claim 3, characterized in that: The guide rail (4-2) is fixed to the lower mold (2) by screws.

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