Protective door of die-casting machine

Abstract

The utility model discloses a protective door of a die-casting machine, which belongs to the technical field of die-casting machines and comprises a protective door body and two groups of guide rails arranged on the die-casting machine, the guide rails are arranged up and down, positioning seats are arranged on one side of the protective door body close to the guide rails, and two groups of positioning seats are arranged corresponding to each group of guide rails. A guide seat and an adjusting seat are arranged on the sides, close to the guide rail, of the positioning seats correspondingly and slidably connected with the guide rail, a connecting seat is arranged between the upper positioning seat and the lower positioning seat, and a first lead screw and a second lead screw are rotationally connected between the upper positioning seat and the lower positioning seat correspondingly. One end, far away from the positioning seat, of the first lead screw and one end, far away from the positioning seat, of the second lead screw are fixedly connected, the first lead screw and the second lead screw are in sliding connection with the two sets of adjusting seats through nuts respectively, and one end, penetrating through the positioning seat, of the first lead screw is provided with a handle. And the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting machines, in particular to a protective door for a die-casting machine. Background Art

[0002] A die-casting machine is a machine used for pressure casting, including two types: hot chamber and cold chamber. Under pressure, the die-casting machine injects molten metal into the mold for cooling and forming. After the mold is opened, solid metal castings can be obtained. It was initially used for die-casting type. Currently, during the die-casting production process, a protective door is usually set on the periphery to prevent workpiece fragments from flying to the periphery of the die-casting machine and injuring the operators.

[0003] The traditional protective door is opened and closed by sliding connection with the die-casting machine. When the protective door needs to be repaired and replaced, the screws between the protective door and the guide rail usually need to be removed one by one, and then reinstalled one by one during installation. The operation is cumbersome and inconvenient, reducing the maintenance efficiency. Summary of the Utility Model

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide a protective door that is convenient for later maintenance, easy to install and disassemble, reduces the maintenance difficulty, and improves the maintenance efficiency.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A protective door for a die-casting machine provided by the utility model includes a protective door body and guide rails arranged on the die-casting machine. There are two groups of the guide rails arranged up and down. A positioning seat is arranged on one side of the protective door body close to the guide rail. There are two groups of the positioning seats corresponding to each group of guide rails. A guide seat and an adjustment seat are respectively arranged on one side of the positioning seat close to the guide rail. The guide seat and the adjustment seat are slidably connected with the guide rail;

[0007] A connecting seat is arranged between the upper and lower two groups of positioning seats. The connecting seat is fixed on the protective door body. A first lead screw and a second lead screw are respectively rotatably connected between the upper and lower two groups of positioning seats. One ends of the first lead screw and the second lead screw far away from the positioning seats are fixedly connected and rotatably connected with the connecting seat. The first lead screw and the second lead screw are respectively slidably connected with the two adjustment seats through nuts. One end of the first lead screw passes through the positioning seat and is provided with a handle.

[0008] Preferably, a guiding protrusion is arranged on one side of the guide rail. Sliding grooves for sliding connection with the guide seat and the adjustment seat are arranged on both sides of the guiding protrusion. The guiding protrusion is in an arc protrusion shape.

[0009] Preferably, a guiding end for sliding connection with the sliding groove is arranged on one side of the guide seat close to the guide rail. The guiding end is adapted to the sliding groove.

[0010] Preferably, in the technical solution of the present utility model, the adjusting seat includes a limiting end slidably connected to the positioning seat. A sliding end slidably connected to the sliding groove is arranged on one side of the limiting end close to the guide rail, and the sliding end is adapted to the sliding groove.

[0011] Preferably, in the technical solution of the present utility model, a clamping groove slidably connected to the guiding protrusion is arranged on one side where the guiding seat and the adjusting seat are close to each other, and the clamping groove is adapted to the guiding protrusion.

[0012] Preferably, in the technical solution of the present utility model, the thread rotation directions of the first lead screw and the second lead screw are opposite.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By driving the first lead screw and the second lead screw to rotate through the handle, since the first lead screw and the second lead screw are fixedly connected and their thread rotation directions are opposite, the two groups of adjusting seats move towards the direction close to the guiding seat, and the guiding seat and the adjusting seat are attached to the guiding protrusion and the sliding groove from both sides, so that the protection door body forms a sliding connection relationship with the guide rail through the guiding seat and the adjusting seat, avoiding workpiece fragments flying to the periphery of the die casting machine during the working process of the die casting machine and injuring the operators, improving the safety of the operation. When disassembling, by driving the first lead screw and the second lead screw through the handle and rotating them in the reverse direction, the adjusting seat can be moved away from the guiding seat, and the protection door body can be disassembled, improving the convenience of installation and disassembly of the protection door body, facilitating the later maintenance and replacement work, and improving the work efficiency.

[0015] 2. Through the cooperation of the guiding end, the sliding end and the sliding groove, when the guiding seat and the adjusting seat are clamped on the guide rail, the guiding end and the sliding end can smoothly adhere to the inner wall of the sliding groove, and at the same time, the clamping groove between the guiding seat and the adjusting seat adheres to the guiding protrusion, thereby reducing the friction between the guiding seat and the adjusting seat and the guide rail during the movement of the protection door body, reducing wear, and ensuring the stability of the protection door body during the movement process. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the protection door body provided in the specific embodiment of the present utility model;

[0017] Figure 2 is provided in the specific embodiment of the present utility model Figure 1 is an enlarged schematic diagram of the structure at A in

[0018] In the drawings, the list of components represented by each reference numeral is as follows:

[0019] 1. Protective door body; 11. Connecting seat; 2. Positioning seat; 3. First lead screw; 31. Handle; 4. Second lead screw; 5. Guide rail; 51. Guide projection; 52. Slide groove; 6. Guide seat; 61. Guide end; 7. Adjusting seat; 71. Limiting end; 72. Sliding end. Specific implementation manner

[0020] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific implementation manners.

[0021] A protective door for a die-casting machine includes a protective door body 1 and a guide rail 5 provided on the die-casting machine. There are two groups of the guide rails 5 arranged up and down. A positioning seat 2 is provided on one side of the protective door body 1 close to the guide rail 5. There are two groups of the positioning seats 2 corresponding to each group of the guide rails 5. A guide seat 6 and an adjusting seat 7 are respectively provided on one side of the positioning seat 2 close to the guide rail 5. The guide seat 6 and the adjusting seat 7 are slidably connected to the guide rail 5.

[0022] A connecting seat 11 is provided between the two groups of positioning seats 2 up and down. The connecting seat 11 is fixed to the protective door body 1. A first lead screw 3 and a second lead screw 4 are respectively rotatably connected between the two groups of positioning seats 2 up and down. One ends of the first lead screw 3 and the second lead screw 4 far from the positioning seat 2 are fixedly connected and rotatably connected to the connecting seat 11. The first lead screw 3 and the second lead screw 4 are slidably connected to the two groups of adjusting seats 7 through nuts respectively. One end of the first lead screw 3 passes through the positioning seat 2 and is provided with a handle 31. The thread winding directions of the first lead screw 3 and the second lead screw 4 are opposite.

[0023] During installation, rotate the handle 31 to drive the first lead screw 3 to rotate. Since the first lead screw 3 is fixedly connected to the second lead screw 4 and the thread winding directions of the two are opposite, while the first lead screw 3 drives the second lead screw 4 to rotate, the two groups of adjusting seats 7 connected thereto move closer to each other, that is, the adjusting seat 7 moves away from the guide seat 6. Install the two groups of guide seats 6 on the protective door body 1 corresponding to the guide rail 5. Rotate the handle 31 in the reverse direction to drive the first lead screw 3 and the second lead screw 4 to rotate in the reverse direction, so that the two groups of adjusting seats 7 connected thereto move away from each other, that is, move in the direction close to the guide seat 6 until the adjusting seat 7 and the guide seat 6 clamp both sides of the guide rail 5 and form a sliding connection with the guide rail 5, thereby realizing the installation of the protective door body 1. During disassembly, by rotating the handle 31 and cooperating with the action of the first lead screw 3 and the second lead screw 4, drive the two groups of adjusting seats 7 to move along the direction away from the guide seat 6, and the protective door body 1 can be removed. The convenience of installation and disassembly of the protective door body 1 is improved. It can be realized by the cooperation of two lead screws with opposite thread winding directions and the adjusting seat 7. The structure is simple, which is convenient for the disassembly and replacement of the protective door body 1 during later maintenance, reduces the difficulty of disassembly and assembly of the protective door body 1, and improves the efficiency of maintenance and replacement.

[0024] As a possible implementation of this solution, preferably, a guiding projection 51 is provided on one side of the guide rail 5. Sliding grooves 52 for slidably connecting with the guiding seats 6 and the adjusting seats 7 are provided on both sides of the guiding projection 51. The guiding projection 51 is in the shape of an arc projection. The upper and lower groups of guiding seats 6 are installed corresponding to the upper and lower groups of sliding grooves 52. The two groups of guiding seats 6 are located on both sides away from the two groups of guide rails 5. Rotate the handle 31 to drive the first lead screw 3 and the second lead screw 4 to rotate, so that the two groups of adjusting seats 7 move away from each other, that is, move towards the direction close to the guiding seats 6, so as to fit the guiding seats 6 from both sides to the guiding projection 51 and the sliding grooves 52, so that the protective door body 1 forms a sliding connection relationship with the guide rail 5 through the guiding seats 6 and the adjusting seats 7, avoiding workpiece fragments flying to the periphery of the die-casting machine during the working process of the die-casting machine and injuring the operators, improving the safety of the operation and the installation of the protective door body 1 is simple and fast.

[0025] As a possible implementation of this solution, preferably, a guiding end 61 for slidably connecting with the sliding groove 52 is provided on one side of the guiding seat 6 close to the guide rail 5. The guiding end 61 is adapted to the sliding groove 52. The guiding end 61 is in an arc shape protruding towards the sliding groove 52 and fits the inner wall of the sliding groove 52, reducing the friction between the guiding seat 6 and the guide rail 5 and improving the convenience of the movement of the protective door body 1.

[0026] As a possible implementation of this solution, preferably, the adjusting seat 7 includes a limiting end 71 slidably connected with the positioning seat 2. A sliding end 72 for slidably connecting with the sliding groove 52 is provided on one side of the limiting end 71 close to the guide rail 5. The sliding end 72 is adapted to the sliding groove 52. The sliding end 72 protrudes from the limiting end 71 towards the sliding groove 52 and smoothly fits the inner wall of the sliding groove 52, so that when the adjusting seat 7 clamps on one side of the guide rail 5, the friction with the sliding groove 52 is reduced, and the wear during the movement of the protective door body 1 is reduced.

[0027] As a possible implementation of this solution, preferably, a clamping groove for slidably connecting with the guiding projection 51 is provided on the side where the guiding seat 6 and the adjusting seat 7 are close to each other. The clamping groove is adapted to the guiding projection 51. By rotating the handle 31 to drive the first lead screw 3 and the second lead screw 4 to rotate, the two groups of adjusting seats 7 and the guiding seat 6 are cooperated to clamp on both sides of the guiding projection 51. The clamping groove of the adjusting seat 7 and the guiding seat 6 smoothly fits the outer wall of the guiding projection 51, further improving the stability of the protective door body 1 during the movement process.

[0028] The present utility model is described through preferred embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. The present utility model is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application belong to the scope of protection of the present utility model.

Claims

1. A die-casting machine protective door, characterized in that: The invention comprises a protective door body (1) and a guide rail (5) arranged on a die-casting machine, wherein the guide rail (5) is provided with two groups at the upper and lower parts, a positioning seat (2) is provided on the side of the protective door body (1) close to the guide rail (5), two groups of the positioning seats (2) are provided corresponding to each group of guide rails (5), and a guide seat (6) and an adjustment seat (7) are respectively provided on the side of the positioning seat (2) close to the guide rail (5), and the guide seat (6) and the adjustment seat (7) are slidably connected to the guide rail (5); A connecting seat (11) is provided between the upper and lower groups of the positioning seats (2), and the connecting seat (11) is fixed on the protective door body (1). A first screw rod (3) and a second screw rod (4) are rotatably connected between the upper and lower groups of the positioning seats (2), respectively. The first screw rod (3) and the second screw rod (4) are fixedly connected at one end away from the positioning seat (2) and are rotatably connected to the connecting seat (11). The first screw rod (3) and the second screw rod (4) are slidably connected to the two groups of adjustment seats (7) through nuts, respectively. One end of the first screw rod (3) passes through the positioning seat (2) and is provided with a handle (31).

2. The die-casting machine protective door according to claim 1, characterized in that: A guide protrusion (51) is provided on one side of the guide rail (5), and sliding grooves (52) slidably connected to the guide seat (6) and the adjustment seat (7) are provided on both sides of the guide protrusion (51), and the guide protrusion (51) is in the shape of a circular arc protrusion.

3. The die-casting machine protective door according to claim 1, characterized in that: A guide end (61) slidably connected to the slide groove (52) is provided on one side of the guide seat (6) close to the guide rail (5), and the guide end (61) is adapted to the slide groove (52).

4. The die-casting machine protective door according to claim 1, characterized in that: The adjustment seat (7) comprises a limiting end (71) slidably connected to the positioning seat (2), and a sliding end (72) slidably connected to the slide groove (52) is provided on a side of the limiting end (71) close to the guide rail (5), and the sliding end (72) is adapted to the slide groove (52).

5. The die-casting machine protective door according to claim 1, characterized in that: A clamping groove slidably connected to the guide protrusion (51) is provided on one side of the guide seat (6) and the adjustment seat (7) close to each other, and the clamping groove is adapted to the guide protrusion (51).

6. The die-casting machine protective door according to claim 1, characterized in that: The first screw rod (3) and the second screw rod (4) have threads with opposite directions of rotation.

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