Double-main-cylinder vertical indirect extrusion casting machine with local pressurization function

Abstract

The utility model discloses a double-main-cylinder vertical indirect extrusion casting machine with a local pressurization function, and belongs to the technical field of extrusion casting piece devices. The utility model discloses a double-main-cylinder vertical indirect extrusion casting machine with a local pressurization function. The stand column is fixedly connected to the workbench; the movable sliding block is connected to the stand column in a sliding mode; the hydraulic station is fixedly connected to the top of the column; the lower die is connected to the workbench; the upper die is connected to the bottom of the movable sliding block; the upper die is matched with the lower die; the central cylinder and the knockout cylinder are fixedly connected to the movable sliding block; by means of the multiple sets of oil cylinders arranged in the device, on one hand, the pressurizing and pressure maintaining effects can be achieved, on the other hand, the thick and large portion of a casting can be fed, then the problems of shrinkage porosity and shrinkage cavity of the hot spot portion are solved, the casting efficiency is effectively improved, the possibility of casting scrapping is reduced, and the production cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to extrusion casting device technical field especially relates to a vertical indirect extrusion casting machine with double master cylinder and partial pressurization. BACKGROUND

[0002] Indirect extrusion casting is a kind of process method that liquid or semi-solid metal liquid is injected into a barrel, and a punch is used to apply high pressure to shoot into a closed mold cavity to solidify and form a casting, and the process flow includes mold cleaning, spraying release agent, mold closing, feeding, filling, primary pressurization, partial secondary pressurization, pressure maintaining, mold opening, partial pressurization core pulling, center core pulling and knockout, etc., and in the prior art, an indirect extrusion casting machine is generally used for casting.

[0003] However, the extrusion casting machine in the prior art still has some deficiencies when in use, and the existing extrusion casting machine can only be used to make some support, simple shell, regular-shaped hub positive demolding castings, and can only use low-pressure casting or gravity casting with sand core to realize the casting of castings with large local wall thickness difference, large thermal joint and complexity (such as flywheel shell), the working efficiency may be not high, and the casting cost needs to be further reduced. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the problems in the background art, and provides a vertical indirect extrusion casting machine with double master cylinder and partial pressurization.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A vertical indirect extrusion casting machine with double master cylinder and partial pressurization, comprising:

[0007] A workbench;

[0008] A stand column fixedly connected to the workbench and the upper cross beam;

[0009] A movable sliding block slidingly connected to the stand column through a double master cylinder;

[0010] A hydraulic station fixedly connected to the top end of the stand column;

[0011] A lower mold connected to the workbench;

[0012] An upper mold connected to the bottom of the movable sliding block;

[0013] The upper mold and the lower mold are matched;

[0014] A center cylinder fixedly connected to the movable sliding block;

[0015] A connecting rod fixedly connected to the driving end of the center cylinder;

[0016] The center core is fixedly connected to the connecting rod.

[0017] Preferably, a material removing cylinder is fixedly connected to the movable sliding block, a driving end of the material removing cylinder is fixedly connected with a material removing plate, the material removing plate is fixedly connected with a material removing rod, a bottom of the material removing rod is fixedly connected with a mold plate, and a material removing inclined top is connected to the mold plate.

[0018] Preferably, a material cylinder is connected to the workbench, a top cylinder is fixedly connected to the workbench, a driving end of the top cylinder is connected with a top rod, the top rod is fixedly connected with a punch, the punch is located at the center of the material cylinder, and the punch can slide up and down.

[0019] Preferably, a material receiving frame is rotatably connected to the workbench.

[0020] Preferably, a main cylinder is fixedly connected to the upper cross beam, and a driving end of the main cylinder is fixedly connected with the movable sliding block.

[0021] Compared with the prior art, the vertical indirect extrusion casting machine with double main cylinders and local pressurization has the following beneficial effects:

[0022] The parts not involved in the device are the same as or can be realized by the prior art, the multiple oil cylinders arranged in the device can realize the effects of pressurization and pressure maintenance on one hand, and the center cylinder and the material removing cylinder fixedly installed in the movable sliding block can realize the functions of core pulling and material removing on the other hand, the center cylinder pushes the core pulling to move and realize the core pulling function, the material removing cylinder pushes the material removing plate to move and realize the material removing function, the movement of the top cylinder realizes the one-time extrusion of the casting, and the multiple oil cylinders realize the secondary extrusion, so that the thick part of the casting can be shrinkage compensated, the problems of shrinkage and shrinkage hole in the hot section are solved, the casting efficiency is effectively improved, the possibility of casting scrap is reduced, and the production cost is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 A structural schematic view of the vertical indirect extrusion casting machine with double main cylinders and local pressurization is provided for the utility model.

[0024] Fig. 2 A front view of the vertical indirect extrusion casting machine with double main cylinders and local pressurization is provided for the utility model.

[0025] Fig. 3 A sectional view of the vertical indirect extrusion casting machine with double main cylinders and local pressurization is provided for the utility model.

[0026] In the figure: 1, top cylinder; 2, top rod; 3, workbench; 4, stand; 5, receiving rack; 6, connecting rod; 7, movable sliding block; 8, center cylinder; 9, material removing cylinder; 10, material removing rod; 11, material removing plate; 12, main cylinder; 13, upper cross beam; 14, nut; 15, liquid filling valve; 16, hydraulic station; 17, upper mold; 18, mold plate; 19, center core-pulling; 20, material removing inclined top; 21, casting; 22, sprue bushing; 23, lower mold; 24, barrel; 25, lower mold base plate; 26, punch. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0028] Embodiment 1

[0029] Referring to Figs. 1-3 A vertical indirect extrusion casting machine with double main cylinders and local pressurization, comprising:

[0030] The workbench 3;

[0031] The stand 4 is fixedly connected to the workbench 3 and the upper cross beam 13;

[0032] The movable sliding block 7 is slidingly connected to the stand 4;

[0033] The hydraulic station 16 is fixedly connected to the top end of the stand 4 through the nut 14;

[0034] The lower mold base plate 25 is fixedly connected to the workbench 3;

[0035] The lower mold 23 is connected to the lower mold base plate 25;

[0036] The upper mold 17 is connected to the bottom of the movable sliding block 7;

[0037] The upper mold 17 and the lower mold 23 are matched;

[0038] The center cylinder 8 is fixedly connected to the movable sliding block 7;

[0039] The connecting rod 6 is fixedly connected to the driving end of the center cylinder 8;

[0040] The center core-pulling 19 is fixedly connected to the connecting rod 6.

[0041] The material removing cylinder 9 is fixedly connected to the movable sliding block 7, the material removing plate 11 is fixedly connected to the driving end of the material removing cylinder 9, the material removing rod 10 is fixedly connected to the material removing plate 11, the mold plate 18 is fixedly connected to the bottom of the material removing rod 10, and the material removing inclined top 20 is connected to the mold plate 18.

[0042] The workbench 3 is connected with the barrel 24 with the sprue bush 22, the workbench 3 is fixedly connected with the top cylinder 1, the driving end of the top cylinder 1 is connected with the top rod 2, the top rod 2 is fixedly connected with the punch 26, the punch 26 is located at the center of the barrel 24, and the punch can slide up and down in clearance fit.

[0043] The workbench 3 is rotatably connected with the material receiving frame 5.

[0044] Referring to Figs. 1-3 After the casting is completed, the staff can rotate the material receiving frame 5, and when the material receiving frame 5 is rotated to be directly below the casting 21, the casting 21 dropped by the material knocking inclined top 20 can be stably caught.

[0045] The hydraulic station 16 is fixedly connected with the upper cross beam 13 at the bottom, and the support stability of the hydraulic station 16 can be further ensured through the upper cross beam 13, so that the stability during hydraulic casting can be ensured.

[0046] The hydraulic station 16 is fixedly connected with the main cylinder 12 with the liquid filling valve 15, and the driving end of the main cylinder 12 is fixedly connected with the movable sliding block 7.

[0047] Referring to Figs. 1-3 In the use process, the staff pours the metal liquid into the barrel 24, at this time, the main cylinder 12 pushes the movable sliding block 7 to move downward, the movable sliding block 7 moves downward to synchronously drive the upper mold 17 to move downward, and after the upper mold 17 moves downward by a distance, the upper mold 17 and the lower mold 23 are attached, at this time, the upper mold 17 and the lower mold 23 are closed, and the main cylinder 12 is pressurized and pressure-kept;

[0048] In the closing process, the center cylinder 8 pushes the connecting rod 6 to move downward, at this time, the connecting rod 6 synchronously pushes the center core-pulling 19 to be pressurized and pressure-kept;

[0049] After the closing is completed, at this time, the top cylinder 1 pushes the top rod 2 to move, the top rod 2 moves to push the punch 26 to pour the metal liquid into the closed mold cavity, at this time, the top cylinder 1 is tightly pressurized and pressure-kept after the casting 21 is formed.

[0050] After the casting 21 is formed, at this time, the main cylinder 12 is reset, the main cylinder 12 drives the movable sliding block 7 to move upward and reset, and in the resetting process, the upper mold 17 and the lower mold 23 are opened and separated, at this time, the staff rotates the material receiving frame 5 to be directly below the casting 21, starts the material knocking cylinder 9, and the material knocking cylinder 9 drives the material knocking rod 10 to move downward, the material knocking rod 10 moves downward to synchronously drive the mold plate 18 to move downward, at this time, the mold plate 18 drives the material knocking inclined top 20 to push the casting 21 downward, and then the casting 21 is pushed to fall on the material receiving frame 5.

[0051] The utility model discloses through the multiple groups of oil cylinder set in this device, one side can play the effect of pressurization, pressure -retaining, the other side still can promote the movement of center core 19, and then realizes the core -pulling function, through the secondary extrusion of multiple oil cylinders, can carry out the shrinkage of thick and big part of casting 21, and then solves the shrinkage of thermal node part, improves the casting efficiency effectively, reduces the possibility of casting scrapping, effectively reduces the production cost.

[0052] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the utility model disclosed technical range, according to the technical scheme of the utility model and its inventive concept, equivalent replacement or change, all should be covered in the protection scope of the utility model.

Claims

1. A vertical indirect squeeze casting machine with partial pressurization of both main cylinders, characterized in that, Include: Workbench (3); Column (4), fixedly connected to the workbench (3) and the upper beam (13); Moving slider (7), slidingly connected to the column (4); Hydraulic station (16), fixedly connected to the top end of the column (4); Lower mold (23), connected to the workbench (3); Upper mold (17), connected to the bottom of the moving slider (7); The upper mold (17) and the lower mold (23) are matched; Center cylinder (8), fixedly connected to the moving slider (7); Connecting rod (6), fixedly connected to the driving end of the center cylinder (8); Center core-pulling (19), fixedly connected to the connecting rod (6).

2. A vertical indirect squeeze casting machine with partial pressurization of both the main cylinders according to claim 1, characterized in that, The moving slider (7) is fixedly connected with a material striking cylinder (9), the driving end of the material striking cylinder (9) is fixedly connected with a material striking plate (11), the material striking plate (11) is fixedly connected with a material striking rod (10), the bottom of the material striking rod (10) is fixedly connected with a mold plate (18), and the mold plate (18) is connected with a material striking inclined top (20).

3. A vertical indirect squeeze casting machine with partial pressurization of both the main cylinders according to claim 1, characterized in that, The workbench (3) is connected with a barrel (24), the workbench (3) is fixedly connected with a top cylinder (1), the driving end of the top cylinder (1) is connected with a top rod (2), the top rod (2) is fixedly connected with a punch (26), and the punch (26) is located at the center of the barrel (24).

4. A vertical indirect squeeze casting machine with partial pressurization of both the main cylinders according to claim 1, characterized in that, The workbench (3) is rotatably connected with a material receiving frame (5).

5. A vertical indirect squeeze casting machine with partial pressurization of both the main cylinders according to claim 1, characterized in that, The upper beam (13) is fixedly connected with a main cylinder (12), and the driving end of the main cylinder (12) is fixedly connected with the moving slider (7).

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