Die-casting forming mechanism with adjustable cavity

Abstract

The utility model relates to the technical field of aluminum alloy dies, in particular to a die-casting forming mechanism with an adjustable cavity, which comprises a lower die, an upper die, a lower cavity, an upper cavity and an injection pipe, the upper cavity is arranged at the bottom of the upper die, the lower cavity is arranged on the lower die, two first hydraulic cylinders are fixedly mounted at the bottom of the lower die, and two second hydraulic cylinders are fixedly mounted at the bottom of the upper die. The output ends of the two first hydraulic cylinders penetrate through the lower die and extend into the lower cavity, two second hydraulic cylinders are fixedly installed on the top of the upper die, two movable grooves are formed in the top of the upper die, and two downward pressing assemblies are arranged on the upper die. The hydraulic cylinder I, the hydraulic cylinder II, the extrusion plate I and the extrusion plate II are arranged, and the distance between the extrusion plate I and the extrusion plate II is changed by controlling the output of the hydraulic cylinder I and the hydraulic cylinder II, so that the capacity between the upper cavity and the lower cavity is changed to adapt to the change of the size of a product, and a new mold does not need to be arranged.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy molds, in particular to a die-casting molding mechanism with an adjustable mold cavity. Background Art

[0002] Moulds are production tools that are needed in the production of all kinds of modern products. The mould cavity can be set according to the shape of the product to manufacture the product shape. Aluminum alloy products are generally die-casted.

[0003] The shape of the cavity on the mold is related to the size and volume of the product. The cavity needs to be made according to the design requirements of the product, such as product shape, size, thickness, etc. Once the cavity is customized, the mold can only produce products of specific shapes and sizes. When the size of the product to be produced only needs to be changed in size or shape, a new cavity needs to be designed to adapt to the change in product. However, redesigning a new cavity takes time and manpower and material resources.

[0004] Therefore, a die-casting molding mechanism with adjustable cavity is proposed, which can change the cavity size to adapt to the change of products. Utility Model Content

[0005] The utility model aims to provide a die-casting molding mechanism with adjustable cavity, which solves the problems raised in the above background technology by arranging two ejector rods and an ejector block so that the ejector rods and the ejector block can automatically eject the workpiece when the hydraulic cylinder and the lower mold are recovered.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A die-casting molding mechanism with adjustable cavity comprises a lower die, an upper die, a lower cavity and an upper cavity, and an injection tube, wherein the upper cavity is opened at the bottom of the upper die, and the lower cavity is arranged on the lower die, two hydraulic cylinders 1 are fixedly installed at the bottom of the lower die, and the output ends of the two hydraulic cylinders 1 pass through the lower die and extend into the lower cavity, two hydraulic cylinders 2 are fixedly installed on the top of the upper die, two movable grooves are arranged on the top of the upper die, and two pressing assemblies are arranged on the upper die, and the two pressing assemblies are fixedly connected to the output ends of the two hydraulic cylinders 2 respectively, and the output ends of the two hydraulic cylinders 1 are detachably installed with an extrusion plate 2, and the injection tube is located at the center of the upper die and passes through the extrusion plate.

[0008] Preferably, the pressing assembly includes an extrusion plate 1 and a push rod, and the side wall of one end of the push rod is fixedly connected to the output end of the hydraulic cylinder 2. The push rod is located in the movable groove, and one end of the push rod extends through the upper mold into the upper cavity. The extrusion plate 1 is detachably mounted on one end of the push rod, and the width and length of the extrusion plate 1 are consistent with the upper cavity.

[0009] Preferably, the injection tube is provided with a first part and a second part, the second part is fixedly connected to the extrusion plate, the second part is fixedly mounted on the top of the upper mold, and the second part is slidably mounted on the inner wall of the first part.

[0010] Preferably, the hydraulic cylinder 1 and the hydraulic cylinder 2 are both connected to a controller via electric wires, and the controller is provided with a knob 1 and a knob 2, wherein the knob 1 controls the hydraulic cylinder 1 and the knob 2 controls the hydraulic cylinder 2.

[0011] Preferably, a main knob is provided on the side wall of the controller, and the main knob controls the synchronous operation of hydraulic cylinder 1 and hydraulic cylinder 2.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Set hydraulic cylinder 1 and hydraulic cylinder 2 and extrusion plate 1 and extrusion plate 2, and change the distance between extrusion plate 1 and extrusion plate 2 by controlling the output of hydraulic cylinder 1 and hydraulic cylinder 2 to change the capacity between the upper cavity and the lower cavity to adapt to the change of product size without resetting the new mold.

[0014] 2. The shapes of the extrusion plate 1 and the extrusion plate 2 can be customized according to the shape of the product to be processed, and can be set to arc, groove, etc. When it needs to be changed, it can be disassembled and replaced, so that it can be processed and produced according to different shapes of the product without resetting a new mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the overall structure of the utility model;

[0016] Figure 2 This is a structural diagram of the controller of the utility model;

[0017] Figure 3 This is a structural diagram of the injection tube of the utility model.

[0018] In the figure: 1. lower die; 2. upper die; 3. hydraulic cylinder one; 4. hydraulic cylinder two; 5. extrusion plate one; 6. push rod; 7. movable slot; 8. controller; 9. knob one; 10. knob two; 11. extrusion plate two; 12. upper cavity; 13. lower cavity; 14. injection tube; 1401, part one; 1402, part two; 15. main knob. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 3 The utility model provides a die-casting molding mechanism with adjustable cavity, and the technical solution is as follows:

[0021] A die-casting molding mechanism with adjustable cavity comprises a lower die 1, an upper die 2, a lower cavity 13 and an upper cavity 12, and an injection tube 14, wherein the upper cavity 12 is opened at the bottom of the upper die 2, and the lower cavity 13 is arranged on the lower die 1, and two hydraulic cylinders 3 are fixedly installed at the bottom of the lower die 1, and the output ends of the two hydraulic cylinders 3 pass through the lower die 1 and extend into the lower cavity 13, and two hydraulic cylinders 2 4 are fixedly installed on the top of the upper die 2, and two movable grooves 7 are arranged on the top of the upper die 2, and two pressing assemblies are arranged on the upper die 2, and the two pressing assemblies are fixedly connected to the output ends of the two hydraulic cylinders 2 4 respectively, and the output ends of the two hydraulic cylinders 3 are detachably installed with an extrusion plate 2 11, and the injection tube 14 is located at the center of the upper die 2 and passes through the extrusion plate.

[0022] like Figure 2 As shown, the hydraulic cylinder 1 3 and the hydraulic cylinder 2 4 are both connected to a controller 8 via electric wires. The controller 8 is provided with a knob 1 9 and a knob 2 10 . The knob 1 9 controls the hydraulic cylinder 1 3 , and the knob 2 10 controls the hydraulic cylinder 2 4 .

[0023] During die casting, after the upper mold 2 and the lower mold 1 are closed, the metal liquid flows from the injection tube 14 into the space between the upper cavity 12 and the lower cavity 13. When the size of the product to be processed changes, the capacity between the upper cavity 12 and the lower cavity 13 needs to be adjusted. At this time, the knob 1 9 and the knob 2 10 are manually turned to control the output ends of the hydraulic cylinder 1 3 and the hydraulic cylinder 2 4. The hydraulic cylinder 2 4 is used to control the downward movement of the pressing device, thereby adjusting the capacity between the lower cavity and the upper cavity, and then adjusting the size of the product.

[0024] like Figure 1As shown, the pressing assembly includes an extrusion plate 1 and a push rod 6. The side wall of one end of the push rod 6 is fixedly connected to the output end of the hydraulic cylinder 2 4. The push rod 6 is located in the movable groove 7. One end of the push rod 6 passes through the upper mold 2 and extends into the upper cavity 12. The extrusion plate 15 is detachably mounted on one end of the push rod 6. The width and length of the extrusion plate 15 are consistent with the upper cavity 12. The extrusion plate 15 is detachable. The shapes of the extrusion plate 15 and the extrusion plate 2 11 can be customized according to the shape of the product to be processed. They can be set to arc, groove, etc. When a change is needed, they can be removed and replaced, so that they can be processed and produced according to different shapes of the product without resetting a new mold.

[0025] like Figure 2 As shown, the injection tube 14 is provided with a first part 1401 and a second part 1402, the second part 1402 is fixedly connected to the extrusion plate 5, the second part 1402 is fixedly mounted on the top of the upper mold 2, the second part 1402 is slidably mounted on the inner wall of the first part 1401, and the injection tube 14 is divided into the first part 1401 and the second part 1402, the first part 1401 and the second part 1402 can slide relative to each other, when the extrusion plate 5 moves, the first part 1401 can move with the extrusion plate 5, and at the same time can ensure that the metal liquid can flow smoothly into the cavity.

[0026] like Figure 3 As shown, a total knob 15 is provided on the side wall of the controller 8, and the total knob 15 controls the synchronous operation of the hydraulic cylinder 1 3 and the hydraulic cylinder 2 4. When the output extension of the hydraulic cylinder 1 3 and the hydraulic cylinder 2 4 is required to be the same. Although the embodiments of the utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A die-casting molding mechanism with adjustable cavity, characterized in that : It comprises a lower mold (1), an upper mold (2), a lower mold cavity (13) and an upper mold cavity (12), and an injection tube (14), wherein the upper mold cavity (12) is opened at the bottom of the upper mold (2), and the lower mold cavity (13) is arranged on the lower mold (1), two hydraulic cylinders (3) are fixedly installed at the bottom of the lower mold (1), and the output ends of the two hydraulic cylinders (3) pass through the lower mold (1) and extend into the lower mold cavity (13), two hydraulic cylinders (4) are fixedly installed on the top of the upper mold (2), two movable grooves (7) are arranged on the top of the upper mold (2), and two pressing assemblies are arranged on the upper mold (2), and the two pressing assemblies are fixedly connected to the output ends of the two hydraulic cylinders (4) respectively, and the output ends of the two hydraulic cylinders (3) are detachably installed with an extrusion plate (11), and the injection tube (14) is located at the center of the upper mold (2) and passes through the extrusion plate.

2. The die-casting molding mechanism with adjustable cavity according to claim 1, characterized in that: The pressing assembly comprises an extrusion plate (5) and a push rod (6). The side wall of one end of the push rod (6) is fixedly connected to the output end of the hydraulic cylinder (4). The push rod (6) is located in the movable groove (7). One end of the push rod (6) passes through the upper mold (2) and extends into the upper cavity (12). The extrusion plate (5) is detachably mounted on one end of the push rod (6). The width and length of the extrusion plate (5) are consistent with those of the upper cavity (12).

3. The die-casting molding mechanism with adjustable cavity according to claim 2, characterized in that: The injection tube (14) is provided with a first part (1401) and a second part (1402), wherein the second part (1402) is fixedly connected to the extrusion plate (5), the second part (1402) is fixedly mounted on the top of the upper mold (2), and the second part (1402) is slidably mounted on the inner wall of the first part (1401).

4. The die-casting molding mechanism with adjustable cavity according to claim 3, characterized in that: The hydraulic cylinder 1 (3) and the hydraulic cylinder 2 (4) are both connected to a controller (8) via electric wires. The controller (8) is provided with a knob 1 (9) and a knob 2 (10). The knob 1 (9) controls the hydraulic cylinder 1 (3), and the knob 2 (10) controls the hydraulic cylinder 2 (4).

5. The die-casting molding mechanism with adjustable cavity according to claim 4, characterized in that: A main knob (15) is provided on the side wall of the controller (8), and the main knob (15) controls the synchronous operation of the hydraulic cylinder 1 (3) and the hydraulic cylinder 2 (4).

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