Quick-change mold for magnesium alloy injection molding

Abstract

The utility model discloses a quick-change mold for magnesium alloy injection molding. The movable mold base and the fixed mold base are mounted on the upper surface of an injection molding machine body; the mold quick-changing structure is mounted on one side of the fixed mold body and one side of the movable mold body and is used for quickly changing the movable mold body and the fixed mold body; and the mold base quick-changing structure is mounted on the inner sides of the movable mold base and the fixed mold base. When the mold is replaced, the metal cap is pulled backwards until the third ball groove of the metal cap reaches the position of the ball body, the ball body which is not blocked by the metal cap can move in the third ball groove and the second ball groove, meanwhile, the inserting block is ejected out of the inserting groove due to the reset elastic force of the telescopic rod structure and the first spring, and the mold is replaced. The fixed mold body is ejected from the interior of the fixed mold base, the ball rolls out from the interior of the first ball groove and rolls along the surface of the insertion block until the insertion block completely slides out from the interior of the insertion groove, rapid disassembly of the fixed mold body is completed, and the production efficiency and the equipment maintenance convenience are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to magnesium alloy processing technical field especially relates to a magnesium alloy injection molding is with quick change mould. BACKGROUND

[0002] The magnesium alloy injection molding is with mould is a kind of tool for magnesium alloy material injection molding, it is composed of two or more parts, usually including fixed mould and movable mould, and the two form mould cavity in cooperation.These moulds are injected into the cavity by high temperature and high pressure by molten magnesium alloy material, after cooling and solidification, the part of the required complex shape and accurate size is formed.The design of mould considers the flowability, shrinkage, cooling rate and other characteristics of magnesium alloy, to ensure the quality and efficiency of the molded product.In addition, mould material needs to have good thermal conductivity, wear resistance and mechanical strength, to adapt to the high temperature and high pressure working environment in injection molding process.

[0003] In the current injection molding industry, the traditional magnesium alloy injection molding process has certain operation complexity in mould replacement link.Specifically, when different products need to be replaced or mould maintenance is carried out, operator usually needs to spend more time and effort to disassemble and reinstall mould, this process is not only inefficient, but also easily leads to mould damage or affects product precision due to improper operation, thereby increasing production cost and reducing production flexibility.

[0004] Therefore, it is urgent to propose a magnesium alloy injection molding is with quick change mould to improve mould changing efficiency. UTILITY MODEL CONTENT

[0005] One purpose of the utility model is to propose a magnesium alloy injection molding is with quick change mould, the utility model is to solve the problem that when different products need to be replaced or mould maintenance is carried out, operator usually needs to spend more time and effort to disassemble and reinstall mould, this process is not only inefficient, but also easily leads to mould damage or affects product precision due to improper operation, thereby increasing production cost and reducing production flexibility in the above background.

[0006] A quick-change mold for magnesium alloy injection molding according to an embodiment of the present invention includes a moving mold base and a fixed mold base mounted on the upper surface of the injection molding machine body, a quick-change mold structure for quickly changing the moving mold base and the fixed mold base mounted on one side of the fixed mold base and the moving mold base, and a quick-change mold base structure mounted inside the moving mold base and the fixed mold base. The quick-change mold structure includes an insert block and a first ball groove. The insert block is fixedly connected to the side surface of the fixed mold base and the moving mold base. The side surface of the insert block has a first ball groove. The quick-change mold base structure includes a slot and a metal cap. The slot is opened on the inner side surface of the fixed mold base and the moving mold base. The outer surface of the slot is slidably connected to the metal cap. The inner side surface of the metal cap has a third ball groove. The inner wall surface of the slot has a second ball groove. A ball is disposed inside the second ball groove.

[0007] Preferably, a telescopic rod structure is fixedly connected to one side surface of the insert block, and a pressing plate is fixedly connected to the telescopic end of the telescopic rod structure. A first spring is provided on the surface of the telescopic rod structure to achieve the purpose of quickly ejecting the mold from inside the mold base when changing the mold.

[0008] Preferably, the inner side of the metal cap is provided with a spring groove, the outer side of the slot is provided with a step, and a second spring is provided between the step and the inner wall of the spring groove.

[0009] Preferably, a strong magnetic sheet for adsorbing and fixing the metal cap is fixedly connected to the outer surface of the slot.

[0010] Preferably, the moving mold base is movably connected to the upper surface of the injection molding machine body, and the fixed mold base is fixedly connected to the upper surface of the injection molding machine body.

[0011] Preferably, a discharge port is provided on the lower side of one side of the injection molding machine body, and a guide ramp is provided inside the discharge port.

[0012] The beneficial effects of this utility model are:

[0013] The utility model discloses a mould quick change structure and mould base quick change structure are set up, and when replacing the mould, the metal cap is pulled back, until the third ball groove of metal cap reaches the position of ball, and the ball can move in the inside of third ball groove and second ball groove after losing the block of metal cap, and the reset spring force of telescopic link structure and first spring pushes out the plug from the inside of the slot, and the fixed mould body is ejected from the inside of fixed mould base, and the ball rolls out from the inside of first ball groove and rolls along the surface of plug, until the plug completely slides from the inside of the slot, and the quick disassembly of fixed mould body is completed, when installing another new fixed mould body, the metal cap is pulled outwards to the limit, and the third ball groove reaches the position of ball, and the second spring in spring groove is pressed to the limit at this moment, and the plug is inserted to the innermost end in the inside of the slot, until the first ball groove reaches the position of ball, and the reset spring force of second spring ejects the metal cap towards the direction of strong magnetic sheet at this moment, and makes the third ball groove away from the ball, and the ball is extruded through the inner wall of metal cap and is clamped between first ball groove and second ball groove, and the metal cap is adsorbed and fixed by strong magnetic sheet, and the installation of fixed mould body is completed, and the installation mode of movable mould base and movable mould body is identical with the installation mode of fixed mould base and fixed mould body, the purpose of quick replacement of mould is realized, and the production efficiency and the convenience of equipment maintenance are improved greatly. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and are used to explain the present application, and do not constitute a limitation of the present application. In the drawings:

[0015] Figure 1 A structure schematic view of the quick-change mould for magnesium alloy injection molding proposed by the utility model is installed on an injection molding machine;

[0016] Figure 2 A top view when the fixed mould body and fixed mould base are connected in the quick-change mould for magnesium alloy injection molding proposed by the utility model;

[0017] Figure 3 An enlarged view of A in the quick-change mould for magnesium alloy injection molding proposed by the utility model; Figure 2

[0018] In the drawings: 1, injection molding machine body; 2, movable mould base; 3, fixed mould base; 4, movable mould body; 5, fixed mould body; 6, mould quick change structure; 601, plug; 602, first ball groove; 603, telescopic link structure; 604, first spring; 605, extrusion plate; 7, mould base quick change structure; 701, slot; 702, second ball groove; 703, ball; 704, metal cap; 705, third ball groove; 706, spring groove; 707, step; 708, second spring; 8, strong magnetic sheet; 9, discharge port. PREFERRED EMBODIMENT​

[0019] The utility model will be explained further in detail now in combination with the drawings. These drawings are all simplified schematic diagrams, and only schematically show the basic structure of the utility model, so it only shows the related structure of the utility model.

[0020] Reference Figures 1-3The utility model provides a magnesium alloy injection moulding quick change die, including the dynamic die holder 2 and fixed die holder 3 of installation on the upper surface of injection molding machine body 1 and the die quick change structure 6 for quick replacement dynamic die body 4 and fixed die body 5 of installation on one side of fixed die body 5 and dynamic die body 4 and the die holder quick change structure 7 of installation in the inboard of dynamic die holder 2 and fixed die holder 3, die quick change structure 6 includes the first ball groove 602 of plug block 601 and, plug block 601 fixedly connected in the side surface of fixed die body 5 and dynamic die body 4, the side surface of plug block 601 is equipped with the first ball groove 602, die holder quick change structure 7 includes the metal cap 704 of plug slot 701, plug slot 701 is equipped with the inboard surface of fixed die holder 3 and dynamic die holder 2, the outer surface of plug slot 701 is slidably connected with metal cap 704, the inboard surface of metal cap 704 is equipped with the third ball groove 705, the inner wall surface of plug slot 701 is equipped with the second ball groove 702, the second ball groove 702 is equipped with the ball 703 in the inside, and the second ball groove 702 is the circular platform groove structure, prevents the ball 703 from falling from the second ball groove 702 to the inside of plug slot 701, makes the ball 703 always keep in the inside of second ball groove 702 and third ball groove 705 and moves, when replacing the die, the third ball groove 705 reaches the position of ball 703 after pulling back metal cap 704, the ball 703 can move in the inside of third ball groove 705 and second ball groove 702 after losing the block of metal cap 704, and the ball 703 rolls out from the inside of first ball groove 602 and rolls along the surface of plug block 601, until plug block 601 is completely slid from the inside of plug slot 701, complete fixed die body 5 quick disassembly, when installing another new fixed die body 5, pull out metal cap 704 to the limit, make third ball groove 705 reach the position of ball 703, at this moment, the second spring 708 in spring groove 706 is extruded to the limit, and plug block 601 is inserted to the innermost end in the inside of plug slot 701, until first ball groove 602 reaches the position of ball 703, at this moment, the reset elastic force of second spring 708 makes metal cap 704 pop out towards the direction of strong magnet sheet 8, makes third ball groove 705 away from ball 703, and the ball 703 is extruded by the inner wall of metal cap 704, makes ball 703 be stuck between first ball groove 602 and second ball groove 702, and metal cap 704 is adsorbed and fixed by strong magnet sheet 8, complete fixed die body 5 installation, the installation mode of dynamic die holder 2 and dynamic die body 4 is identical with fixed die holder 3 and fixed die body 5, realizes the purpose of quick replacement die, and the production efficiency and the convenience of equipment maintenance are greatly improved.

[0021] The side surface of the plug-in block 601 is fixedly connected with the telescopic rod structure 603, the telescopic end of the telescopic rod structure 603 is fixedly connected with the extrusion plate 605, the surface of the telescopic rod structure 603 is provided with the first spring 604, which is used to realize the purpose of quickly ejecting the mold from the inside of the mold base when the mold is replaced, and the telescopic rod structure 603 and the first spring 604 are in a state of being extruded when the mold is installed in the inside of the mold base. When disassembling, the plug-in block 601 is ejected outward from the inside of the plug-in slot 701 through the reset elastic force of the first spring 604 and the telescopic rod structure 603, the ejection of the mold is realized, the inside of the metal cap 704 is provided with a spring groove 706, the outside of the plug-in slot 701 is provided with a step 707, the second spring 708 is arranged between the inner walls of the step 707 and the spring groove 706, and the outer surface of the plug-in slot 701 is fixedly connected with a strong magnetic sheet 8 used for adsorbing and fixing the metal cap 704.

[0022] In the embodiment 2, the movable mold base 2 is movably connected to the upper surface of the injection molding machine body 1, the fixed mold base 3 is fixedly connected to the upper surface of the injection molding machine body 1, and the lower part of one side of the injection molding machine body 1 is provided with a discharge port 9, and the inside of the discharge port 9 is provided with a guide slope, which is used for discharging and guiding the magnesium alloy after injection molding.

[0023] When the mold is replaced, the metal cap 704 is first pulled backward until the third ball groove 705 of the metal cap 704 is aligned with the ball 703, at which time the metal cap 704 no longer blocks the ball 703, and the ball 703 can freely move between the third ball groove 705 and the second ball groove 702. At the same time, due to the reset elastic force of the telescopic rod structure 603 and the first spring 604, the plug-in block 601 is ejected from the inside of the plug-in slot 701, so that the fixed mold body 5 is ejected from the inside of the fixed mold base 3. Then, the ball 703 rolls out of the first ball groove 602 and rolls along the side surface of the plug-in block 601 until the plug-in block 601 completely slides out of the inside of the plug-in slot 701, thereby completing the quick disassembly of the fixed mold body 5. When installing a new mold, the metal cap 704 is pulled outward to the limit position so that the third ball groove 705 is aligned with the ball 703. At this time, the second spring 708 is extruded to the limit, the plug-in block 601 is inserted into the innermost end of the plug-in slot 701 until the first ball groove 602 is aligned with the ball 703. Subsequently, the reset elastic force of the second spring 708 ejects the metal cap 704 toward the strong magnetic sheet 8, so that the third ball groove 705 is away from the ball 703, and the ball 703 is extruded by the inner wall of the metal cap 704 and is clamped between the first ball groove 602 and the second ball groove 702. At the same time, the metal cap 704 is adsorbed and fixed by the strong magnetic sheet 8, the installation of the fixed mold body 5 is completed, and the installation process of the movable mold base 2 and the movable mold body 4 is the same as the installation mode of the fixed mold base 3 and the fixed mold body 5. The whole mold replacement process is fast and efficient, greatly improving the production efficiency and the convenience of equipment maintenance.

[0024] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A quick-change mold for magnesium alloy injection molding, characterized by, The utility model relates to a quick-change structure of injection mould, which comprises a movable mould base (2) and a fixed mould base (3) installed on the upper surface of an injection mould body (1), a mould quick-change structure (6) for quickly replacing a movable mould body (4) and a fixed mould body (5) installed on one side of the movable mould body (4) and the fixed mould body (5), and a mould base quick-change structure (7) installed on the inner side of the movable mould base (2) and the fixed mould base (3), wherein the mould quick-change structure (6) comprises a plug (601) and a first ball groove (602), the plug (601) is fixedly connected to the side surface of the movable mould body (4) and the fixed mould body (5), the side surface of the plug (601) is provided with the first ball groove (602), the mould base quick-change structure (7) comprises a plug groove (701) and a metal cap (704), the plug groove (701) is arranged on the inner side surface of the fixed mould base (3) and the movable mould base (2), the outer surface of the plug groove (701) is slidably connected with the metal cap (704), the inner side surface of the metal cap (704) is provided with a third ball groove (705), and the inner wall surface of the plug groove (701) is provided with a second ball groove (702), and the second ball groove (702) is provided with a ball (703) inside.

2. The quick-change mold for injection molding of a magnesium alloy according to claim 1, characterized by The side surface of the plug (601) is fixedly connected with a telescopic rod structure (603), the telescopic end of the telescopic rod structure (603) is fixedly connected with a pressing plate (605), and the surface of the telescopic rod structure (603) is provided with a first spring (604), so that the mould can be quickly ejected from the inside of the mould base when the mould is replaced.

3. The quick-change mold for injection molding of a magnesium alloy according to claim 1, characterized by The inner side of the metal cap (704) is provided with a spring groove (706), the outer side of the plug groove (701) is provided with a step (707), and the second spring (708) is arranged between the inner walls of the step (707) and the spring groove (706).

4. The quick-change mold for injection molding of a magnesium alloy according to claim 1, characterized by The outer surface of the plug groove (701) is fixedly connected with a strong magnetic sheet (8) for adsorbing and fixing the metal cap (704).

5. The quick-change mold for injection molding of a magnesium alloy according to claim 1, characterized by The movable mould base (2) is movably connected to the upper surface of the injection mould body (1), and the fixed mould base (3) is fixedly connected to the upper surface of the injection mould body (1).

6. The quick-change mold for injection molding of a magnesium alloy according to claim 1, characterized by The lower part of one side of the injection mould body (1) is provided with a discharge port (9), and the inside of the discharge port (9) is provided with a guide slope.

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