Three-plate point pouring structure of plastic-iron integrated injection mold

Abstract

The utility model discloses a three-plate point pouring structure of a rubber-iron integrated injection mold, which comprises a lower mold core, an upper mold core positioned at the top of the lower mold core, a three-plate point pouring component mounted in the upper mold core and used for injecting molten rubber to three sides of the steel plate in the mold cavity, and a three-plate point pouring component mounted in the lower mold core and used for pouring the molten rubber into the three sides of the steel plate in the mold cavity, a steel plate is made into plastic iron and a sprue, and the plastic iron and the sprue are installed on the upper mold core to provide melt glue for the three-plate point pouring assembly. According to the plastic iron injection mold, the three-plate point pouring assembly is arranged in the upper mold core, and each glue injection nozzle can uniformly and stably carry out injection molding on three sides of a steel plate, so that the three sides of the steel plate are wrapped by melt glue to prepare plastic iron, the three-plate point pouring structure of the plastic iron injection mold enables the interior of the mold not to need an additional hot runner, the internal structure becomes simple, and the cost is low. And the overall manufacturing period of the mold is shortened, cost is greatly reduced, and application and popularization are facilitated.

Description

Technical Field

[0001] The utility model specifically relates to a three-plate spot casting structure of a rubber-iron integrated injection mold. Background Art

[0002] Glue-iron is a composite material of glue and iron. In the process of glue-iron integrated injection molding, the molten glue for injection molding needs to enter the mold cavity through the preset gate runner, wait for cooling and molding, and then eject the injection molded product from the mold;

[0003] Existing plastic-iron injection molds usually use 7 independent valve needle hot nozzles to cold runners for plastic-iron injection molding when injecting products. This method will make the mold structure complicated, the molding cycle is long, and the development cost is high, which needs to be improved.

[0004] Therefore, it is necessary to invent a three-plate point casting structure of a rubber-iron integrated injection mold to solve the above problems. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes a three-plate point casting structure of a rubber-iron integrated injection mold. The three-plate point casting structure of the rubber-iron injection mold eliminates the need for an additional hot runner inside the mold, and its internal structure becomes simpler, the overall production cycle of the mold is shortened, and the cost is greatly reduced, which is conducive to promotion and use.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-plate spot casting structure of a rubber-iron integrated injection mold, comprising a lower mold core and an upper mold core located on the top of the lower mold core, and a mold cavity for placing a steel plate is formed between the lower mold core and the upper mold core;

[0009] A three-plate spot casting assembly is installed in the upper mold core and is used to inject molten glue into three sides of the steel plate in the mold cavity to make the steel plate into glue iron;

[0010] The nozzle is installed on the upper mold core to provide molten glue for the three-plate spot casting assembly.

[0011] Preferably, the three-plate spot casting assembly includes a horizontal plate connected to the left and right sides and the rear side of the nozzle, and an arc-shaped plate connected to one end of the three horizontal plates away from the nozzle, respectively.

[0012] Among them, a containing plate is installed at both ends of the two arc plates located on the short side of the mold cavity, and a containing plate is installed at both ends and in the middle of the other arc plate located on the long side of the mold cavity, and a plurality of glue injection nozzles are connected to the bottom of each containing plate.

[0013] Preferably, the upper mold core is provided with six square plates above the glue injection nozzle, and the square plates are arranged in groups of two and correspond to the glue injection nozzles above the three sides of the steel plate respectively.

[0014] Preferably, a plurality of positioning columns are connected to the top of each of the accommodating plates, and the top ends of the positioning columns are respectively connected to the square plates above the accommodating plates.

[0015] Preferably, cavities are provided inside the transverse plate, the arc-shaped plate, and the receiving plate, and each of the glue injection nozzles is connected to the nozzle through the corresponding receiving plate, the arc-shaped plate, and the transverse plate.

[0016] Preferably, a plurality of ejector pins and a needle plate for driving the ejector pins to move upward to eject the rubber iron are distributed inside the lower mold core.

[0017] Compared with the prior art, the above technical solution of the utility model has the following beneficial effects:

[0018] The utility model arranges a three-plate spot casting assembly inside the upper mold core, so that the molten glue in the nozzle can flow to the inside of each injection nozzle through the transmission of the horizontal plate, the arc plate and the receiving plate, thereby evenly and stably realizing the three-sided injection molding of the steel plate, so that the three sides of the steel plate are wrapped with molten glue to form glue iron. The three-plate spot casting structure of the glue iron injection mold eliminates the need for an additional hot runner inside the mold, and its internal structure becomes simple, the overall production cycle of the mold is shortened, the cost is greatly reduced, and it is conducive to promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 It is a front sectional view of the utility model;

[0022] Figure 3 It is a side sectional view of the utility model;

[0023] Figure 4 This is a distribution diagram of the three-plate spot-casting components of the utility model;

[0024] Figure 5 This is a distribution diagram of the three-plate spot-casting components of the utility model;

[0025] Figure 6It is a schematic diagram of the connection structure of the horizontal plate and the arc plate of the utility model.

[0026] Description of reference numerals:

[0027] 1 lower mold core, 2 upper mold core, 3 mold cavity, 4 nozzle, 51 horizontal plate, 52 curved plate, 53 receiving plate, 54 glue injection nozzle, 55 square plate, 56 positioning column, 6 ejector pin, 7 needle plate. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] The utility model provides Figure 1-6 The three-plate spot casting structure of a rubber-iron integrated injection mold shown in the figure comprises a lower mold core 1 and an upper mold core 2 located on the top of the lower mold core 1, and a mold cavity 3 for placing a steel plate is formed between the lower mold core 1 and the upper mold core 2;

[0030] The three-plate spot casting assembly is installed in the upper mold core 2 and is used for injecting molten glue into the three sides of the steel plate in the mold cavity 3 to make the steel plate into glue iron. The three-plate spot casting assembly includes a horizontal plate 51 connected to the left and right sides and the rear side of the nozzle 4, and an arc plate 52 connected to one end of the three horizontal plates 51 away from the nozzle 4, wherein two ends of the two arc plates 52 located on the short side of the mold cavity 3 are each installed with a receiving plate 53, and the two ends and the middle of the other arc plate 52 located on the long side of the mold cavity 3 are each installed with a receiving plate 53, and a plurality of injection nozzles 54 are connected to the bottom of each receiving plate 53;

[0031] The nozzle 4 is installed on the upper mold core 2 and is connected to the injection port of an external injection molding machine to provide molten glue for the three-plate spot casting assembly.

[0032] In one embodiment, six square plates 55 are installed above the upper mold core 2 and the glue injection nozzle 54. The square plates 55 are arranged in groups of two and correspond to the glue injection nozzles 54 above the three sides of the steel plate. A plurality of positioning columns 56 are connected to the top of each of the containing plates 53. The top ends of the positioning columns 56 are respectively connected to the square plates 55 above the containing plates 53. The square plates 55 and the positioning columns 56 interact with each other, so that each containing plate 53 and the glue injection nozzle 54 can be stably installed inside the upper mold core 2, and then the molten glue can be stably injected into the three sides of the steel plate.

[0033] In one embodiment, cavities are opened inside the horizontal plate 51, the curved plate 52, and the receiving plate 53, and each of the glue injection nozzles 54 is connected to the nozzle 4 through the corresponding receiving plate 53, the curved plate 52, and the horizontal plate 51, so as to realize the three-sided injection of molten glue on the steel plate, and then process it into glue iron.

[0034] In one embodiment, a plurality of ejector pins 6 and a needle plate 7 for driving the ejector pins 6 to move upward to eject the rubber iron are distributed inside the lower mold core 1. The needle plate 7 can push the ejector pins 6 to move upward so that the molded rubber iron is ejected and collected.

[0035] The specific implementation method is as follows: when the utility model is used, the thickness of the steel plate is set to 0.33 mm, and since only three of the four sides of the steel plate-molded iron product have glue positions, the three-plate point casting structure of the iron-glue integrated injection mold is used:

[0036] First, the steel plate is placed in the mold cavity 3, and the three sides that need to be injected with glue are respectively located under the injection nozzle 54 of the three-plate spot casting assembly. Then, the injection port of the external injection molding machine reaches the inside of the nozzle 4 and starts to inject molten glue. The molten glue flows into the three horizontal plates 51 in three ways through the nozzle 4 outlet, and then flows into the six receiving plates 53 through the transmission of the arc plate 52. Further, it is sprayed downward through the injection nozzle 54, realizing the three-side injection molding of the steel plate, so that the steel plate is made into glue iron for use;

[0037] Among them, by respectively arranging two receiving plates 53 on the two short sides of the mold cavity 3 and arranging one receiving plate 53 on the long plate thereof, and the bottom of each receiving plate 53 is evenly spaced with glue injection nozzles 54, when the steel plate is injected with molten glue, the flow speed of the molten glue on the three sides of the steel plate is stable, and the flow direction is to flow from the outlet of one glue injection nozzle 54 to both sides, so that the molten glue can be quickly wrapped on the three sides of the steel plate, so that the flow direction and speed of the molten glue are suitable for the production of glue iron, and the molding quality of the glue iron is guaranteed;

[0038] After the rubber iron is formed, after the upper mold core 2 and the lower mold core 1 are separated, the needle plate 7 pushes the ejector pin 6 upward to eject the rubber iron and collect it. The entire injection molding and melting process is completed by a three-plate spot casting assembly, and no additional hot runner is required, which reduces the complexity of the design of the rubber iron injection mold, shortens the mold production cycle, and reduces the cost.

[0039] This embodiment specifically solves the problem that the existing rubber-iron injection molds in the prior art usually use 7 independent valve needle hot nozzles to cold runners for rubber-iron injection molding when injecting products. This method will cause the mold structure to become complicated, the molding cycle to be long, the development cost to be high, and there is a need for improvement.

[0040] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A three-plate point casting structure of a rubber-iron integrated injection mold, characterized in that: include: A lower mold core (1), and an upper mold core (2) located on the top of the lower mold core (1), wherein a mold cavity (3) for placing a steel plate is formed between the lower mold core (1) and the upper mold core (2); A three-plate spot casting assembly is installed in the upper mold core (2) and is used to inject molten glue into three sides of the steel plate in the mold cavity (3) to make the steel plate into glue iron; A nozzle (4) is installed on the upper mold core (2) to provide molten glue for the three-plate spot casting assembly; The three-plate spot casting assembly comprises a horizontal plate (51) connected to the left and right sides and the rear side of the nozzle (4), and an arc-shaped plate (52) respectively connected to one end of the three horizontal plates (51) away from the nozzle (4); Wherein, a receiving plate (53) is installed at both ends of the two arc-shaped plates (52) located on the short side of the mold cavity (3), and a receiving plate (53) is installed at both ends and in the middle of the other arc-shaped plate (52) located on the long side of the mold cavity (3), and a plurality of glue injection nozzles (54) are connected to the bottom of each receiving plate (53).

2. The three-plate spot casting structure of the rubber-iron integrated injection mold according to claim 1 is characterized in that: The upper mold core (2) is located above the glue injection nozzle (54) and is provided with six square plates (55), and the square plates (55) are arranged in groups of two and correspond to the glue injection nozzles (54) above the three sides of the steel plate.

3. The three-plate spot casting structure of the rubber-iron integrated injection mold according to claim 2 is characterized in that: A plurality of positioning columns (56) are connected to the top of each accommodating plate (53), and the top ends of the positioning columns (56) are respectively connected to the square plates (55) above the accommodating plate (53).

4. The three-plate spot casting structure of the rubber-iron integrated injection mold according to claim 1 is characterized in that: The transverse plate (51), the arc-shaped plate (52), and the receiving plate (53) are provided with cavities therein, and each of the glue injection nozzles (54) is connected to the nozzle (4) via the corresponding receiving plate (53), the arc-shaped plate (52), and the transverse plate (51).

5. The three-plate spot casting structure of the rubber-iron integrated injection mold according to claim 1 is characterized in that: A plurality of ejector pins (6) and a needle plate (7) for driving the ejector pins (6) to move upward to eject the rubber iron are distributed inside the lower mold core (1).

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