Automatic die changing device for large iron coating die

Abstract

The utility model discloses an automatic die changing device for a large iron coating die, which comprises a guide rail mechanism, guide rail upright posts are arranged on two sides of the guide rail mechanism, guide rails are arranged on the guide rail upright posts, a die moving mechanism is arranged on the guide rails in a sliding fit manner, and a die adapter plate is arranged on the die moving mechanism. A molding workbench is arranged below the mold adapter plate, a lifting mechanism capable of moving up and down is arranged below the molding workbench, and a plurality of clamping mechanisms matched with the mold adapter plate are arranged on the lifting mechanism. The die replacing device has the advantage of being simple in structure, the labor intensity of operation can be effectively reduced, and the die replacing efficiency of the large iron coating die is improved.

Description

Technical Field

[0001] The utility model belongs to the field of iron - covered sand casting equipment, and particularly relates to an automatic die - changing device for large - scale iron - covered molds. Background Art

[0002] Iron - covered sand casting belongs to special casting. Its mold is formed by covering a thin layer of coated sand on the inner cavity of a metal mold. Iron - covered sand casting has the characteristics of energy conservation, material conservation, high efficiency, high quality, and green production, and its application fields are becoming wider and wider. Currently, for iron - covered sand die - changing, the commonly used method is to push the iron - covered sand molding host through a roller path by manual labor, cylinder or oil cylinder, and fix the mold on the working table of the iron - covered sand molding host with bolts. Due to the limited internal space of the molding machine and deviation in the positioning of the mold on the working table, mold installation is very time - consuming and labor - intensive. Especially for large - scale molds, the weight of a single mold is 3 - 5 tons, and usually the working table of the molding machine is inside the molding host. The mold needs to be pushed into the interior of the molding machine for replacement, and neither the overhead crane nor the forklift can enter. Therefore, the deviation of the mold installation needs to be adjusted manually, and frequent die - changing often takes half a day or even a day, seriously affecting the die - changing efficiency of large - scale iron - covered molds. Content of the Utility Model

[0003] The purpose of the utility model is to provide an automatic die - changing device for large - scale iron - covered molds. The utility model has the advantages of simple structure, can effectively reduce the labor intensity of operation, and improve the die - changing efficiency of large - scale iron - covered molds.

[0004] The technical solution of the utility model: An automatic die - changing device for large - scale iron - covered molds includes a guide - rail mechanism. Guide - rail columns are arranged on both sides of the guide - rail mechanism. Guides are arranged on the guide - rail columns. A mold moving mechanism that is slidably matched is arranged on the guides. A mold adapter plate is arranged on the mold moving mechanism. A molding working table is arranged below the mold adapter plate. A lifting mechanism that moves up and down is arranged below the molding working table. A number of clamping mechanisms that cooperate with the mold adapter plate are arranged on the lifting mechanism.

[0005] In the aforementioned automatic die - changing device for large - scale iron - covered molds, the mold moving mechanism includes a moving frame. Positioning blocks fixed to the mold adapter plate are arranged on both sides of the moving frame. A number of groups of pulleys are arranged on both sides of the lower plane of the moving frame. A motor is also arranged on the front side of the moving frame. A gear is arranged on the output shaft of the motor.

[0006] In the aforementioned automatic die - changing device for large - scale iron - covered molds, a rack is arranged on the guide - rail mechanism, and the rack is in meshing transmission with the gear.

[0007] In the aforementioned automatic die - changing device for large - scale iron - covered molds, the lifting mechanism includes an oil cylinder located below the molding working table. A number of telescopic guide rods are also arranged at the four corners of the molding working table. The telescopic ends of the oil cylinder and the telescopic guide rods are both arranged on the guide - rail mechanism.

[0008] In the aforementioned automatic die-changing device for large iron-clad dies, positioning pins are provided on the molding table, and the positioning pins are inserted through the die adapter plate.

[0009] In the aforementioned automatic die-changing device for large iron-clad dies, the clamping mechanism includes a number of connecting plates fixed to the side of the molding table. A clamping claw is hinged to the connecting plate by a pin. A rolling wheel is provided below the clamping claw, and the bottom of the rolling wheel is arranged on the upper side of the guide rail mechanism. The upper end of the clamping claw cooperates with the die adapter plate.

[0010] Compared with the prior art, the present utility model has the following beneficial effects:

[0011] The overall structure of the present utility model is designed simply and reasonably, safe and reliable. Through the guide rail mechanism, the installation and fixation of the die are outside the molding station, without being restricted by the operating space, and it is very suitable for the installation of extra-large iron-clad dies. Through the die moving mechanism of the present utility model, the installation and fixation of the die are convenient and fast, and the die cleaning is convenient and the visibility is good. The present utility model adopts a die adapter plate and a clamping mechanism, which is suitable for the installation of various models, and the whole equipment has wide practicability. In addition, when the die of the present utility model is installed and fixed, it is hoisted and adjusted by a crane, without the need for workers to pry and adjust, which greatly reduces the labor intensity of personnel operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the front view structural schematic diagram of the present utility model;

[0013] Figure 2 is Figure 1 the top view structural schematic diagram of;

[0014] Figure 3 is the front view structural schematic diagram of the die moving mechanism of the present utility model;

[0015] Figure 4 is Figure 3 the top view structural schematic diagram of;

[0016] Figure 5 is the front view structural schematic diagram of the lifting mechanism of the present utility model;

[0017] Figure 6 is the top view structural schematic diagram of the molding table of the present utility model;

[0018] Figure 7 is the structural schematic diagram of the clamping mechanism of the present utility model.

[0019] The reference numerals in the drawings are: 1, guide rail mechanism; 2, guide rail column; 3, guide rail; 4, die moving mechanism; 5, die adapter plate; 6, modeling workbench; 7, lifting mechanism; 8, clamping mechanism; 9, moving frame; 10, positioning block; 11, pulley; 12, motor; 13, gear; 14, rack; 15, oil cylinder; 16, telescopic guide rod; 17, positioning pin; 18, connecting plate; 19, clamping jaw; 20, supporting wheel. Detailed implementation mode

[0020] The present utility model will be further described below in conjunction with the drawings and embodiments, but it shall not be used as a basis for limiting the present utility model.

[0021] Embodiment: An automatic die changing device for a large iron-clad die, which is configured as Figure 1-7 shown, includes a guide rail mechanism 1, and guide rail columns 2 are arranged on both sides of the guide rail mechanism 1, as Figure 2 shown. A guide rail 3 is arranged on the guide rail column 2. As Figure 1 shown, a die moving mechanism 4 in sliding fit is arranged on the guide rail 3. A die adapter plate 5 is arranged on the die moving mechanism 4. A modeling workbench 6 is arranged below the die adapter plate 5. A lifting mechanism 7 that moves up and down is arranged below the modeling workbench 6. A plurality of clamping mechanisms 8 that cooperate with the die adapter plate 5 are arranged on the lifting mechanism 7. After the die adapter plate 5 is installed on the die moving mechanism 4, a traveling crane transfers the die onto the die adapter plate 5. After the die is moderately adjusted, it is fixed on the die adapter plate 5, and is automatically moved into the modeling station of the molding machine by the die moving mechanism 4. When in place, the modeling workbench 6 rises, and at the same time the clamping mechanism 8 slowly clamps the die adapter plate 5. When the upper plane of the modeling workbench 6 is in contact with the lower plane of the die adapter plate 5, the clamping mechanism 8 completes the clamping of the die adapter plate 5, and the installation of the die and the modeling workbench 6 is completed. After the modeling is completed, the modeling workbench 6 descends. When the lower plane of the die adapter plate 5 is in contact with the upper surface of the die moving mechanism 4, the clamping mechanism 8 slowly loosens until the modeling workbench 6 drops to the lowest position, and the die clamping mechanism 8 completely loosens the die adapter plate 5, and the die moving mechanism 4 moves out of the modeling station. The installation of the die does not require manual adjustment during the whole process, which is fast and simple, and can effectively reduce the labor intensity of the operation and improve the die changing efficiency.

[0022] As Figure 3 and Figure 4 shown, the die moving mechanism 4 includes a moving frame 9. Positioning blocks 10 fixed to the die adapter plate 5 are arranged on both sides of the moving frame 9. Three pulleys 11 are installed on each side of the lower plane of the moving frame 9. A motor 12 is further arranged on the front side of the moving frame 9. A gear 13 is arranged on the output shaft of the motor 12. A rack 14 is arranged on the guide rail mechanism 1. The rack 14 is in meshing transmission with the gear 13. The motor 12 is connected to the gear 13 and the rack 14 to form a power system to push the vehicle frame to move.

[0023] As Figure 5As shown in the figure, the lifting mechanism 7 includes an oil cylinder 15 located below the molding table 6. Four telescopic guide rods 16 are also provided at the four corners of the molding table 6. The telescopic guide rods 16 are used for guiding to ensure the vertical and stable lifting of the molding table 6. The telescopic ends of the oil cylinder 15 and the telescopic guide rods 16 are both arranged on the guide rail mechanism 1.

[0024] As Figure 6 shown in the figure, a positioning pin 17 is provided on the molding table 6, and the positioning pin 17 is arranged on the mold adapter plate 5. As Figure 7 shown in the figure, the clamping mechanism 8 includes a number of connecting plates 18 fixed on the side of the molding table 6. A clamping jaw 19 is hinged to the connecting plate 18 through a pin. The clamping jaw 19 is fixed around the molding table 6 through the connecting plate 18, and a rolling mating roller 20 is provided at the corresponding position of the clamping jaw 19. The bottom of the roller 20 is arranged on the upper side of the guide rail mechanism 1, and the upper end of the clamping jaw 19 is matched with the mold adapter plate 5. The mechanical locking of the mold adapter plate 5 by the clamping jaw 19 and the roller 20 is realized by the rising and falling of the molding machine table. When the molding table 6 rises, the lower part of the clamping jaw 19 slowly disengages from the roller 20, and the clamping jaw 19 begins to tighten, realizing the locking of the molding table 6 and the mold adapter plate 5. When the molding table 6 descends, when the lower part of the clamping jaw 19 touches the roller 20, the clamping jaw 19 will open with the descent of the molding table 6, realizing the separation of the molding table 6 and the mold adapter plate 5.

[0025] The overall structure of this device is designed simply and reasonably, safe and reliable. Through the guide rail mechanism 1, the installation and fixation of the mold are outside the molding station, without being restricted by the operating space, and it is very suitable for the installation of extra-large iron-clad molds. Through the mold moving mechanism 4 of this device, the installation and fixation of the mold are convenient and fast, and the mold cleaning is convenient and the sight is good. This device adopts the mold adapter plate 5 and the clamping mechanism 8, which is suitable for the installation of various models, and the whole equipment has wide practicability. In addition, when the mold of this device is installed and fixed, it is hoisted and adjusted by a crane, without the need for workers to pry and adjust, greatly reducing the labor intensity of personnel operation.

[0026] Working process

[0027] First, fix the mold adapter plate 5 on the mold moving mechanism 4. After the mold is lifted into the mold adapter plate 5 by a crane and adjusted and fixed, the mold moving mechanism 4 is started, and the mold is moved along the guide rail 3 above the molding table 6. After determining that it is in place, the lifting mechanism 7 rises. When the upper plane of the molding table 6 fits with the lower plane of the mold adapter plate 5, the clamping mechanism 8 completes the clamping of the mold adapter plate 5, and the installation of the mold and the molding table 6 is completed. After the molding is completed, the lifting mechanism 7 descends, and the molding table 6 after molding descends. When the lower plane of the mold adapter plate 5 fits with the upper surface of the mold moving mechanism 4, the clamping mechanism 8 slowly loosens until the lifting mechanism 7 reaches the lowest position, and the clamping mechanism 8 is completely separated from the mold adapter plate 5. The mold moving mechanism 4 is moved out of the molding station through the guide rail 3.

[0028] In summary, the utility model has the advantages of simple structure, can effectively reduce the labor intensity of operation, and improve the mold changing efficiency of large iron-covered molds.

Claims

1. An automatic die changing device for a large iron-clad die, comprising a guide rail mechanism (1), guide rail columns (2) being provided on both sides of the guide rail mechanism (1), guide rails (3) being provided on the guide rail columns (2), characterized in that: The guide rail (3) is provided with a slidingly matched mold moving mechanism (4), the mold moving mechanism (4) is provided with a mold transfer plate (5), a molding workbench (6) is provided below the mold transfer plate (5), a lifting mechanism (7) that moves up and down is provided below the molding workbench (6), and a plurality of clamping mechanisms (8) that cooperate with the mold transfer plate (5) are provided on the lifting mechanism (7).

2. The large-scale iron-clad mold automatic mold changing device according to claim 1 is characterized in that: The mold moving mechanism (4) comprises a moving frame (9), the sides of the moving frame (9) are provided with positioning blocks (10) fixed to the mold transfer plate (5), the two sides of the lower plane of the moving frame (9) are provided with a plurality of pulleys (11), the front side of the moving frame (9) is also provided with a motor (12), and the output shaft of the motor (12) is provided with a gear (13).

3. The large-scale iron-clad mold automatic mold changing device according to claim 2 is characterized in that: The guide rail mechanism (1) is provided with a rack (14), and the rack (14) is meshed with the gear (13) for transmission.

4. The large-scale iron-clad mold automatic mold changing device according to claim 1 is characterized in that: The lifting mechanism (7) comprises an oil cylinder (15) located below the molding workbench (6). The molding workbench (6) is also provided with a plurality of telescopic guide rods (16) at four corners. The telescopic ends of the oil cylinder (15) and the telescopic guide rods (16) are both passed through the guide rail mechanism (1).

5. The large-scale iron-clad mold automatic mold changing device according to claim 1 is characterized in that: The molding workbench (6) is provided with a positioning pin (17), and the positioning pin (17) is penetrated on the mold adapter plate (5).

6. The large-scale iron-clad mold automatic mold changing device according to claim 1 is characterized in that: The clamping mechanism (8) comprises a plurality of connecting plates (18) fixed to the side of the molding workbench (6), a clamping claw (19) being hingedly connected to the connecting plate (18) by a pin, a rolling-matching supporting wheel (20) being provided below the clamping claw (19), the bottom of the supporting wheel (20) being arranged on the upper side of the guide rail mechanism (1), and the upper end of the clamping claw (19) being matched with the mold adapter plate (5).

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