Protective shell for a die casting machine

Abstract

The utility model discloses a kind of protective shell for die casting machine, it is related to protective shell technical field, including protective shell, the inside of protective shell is provided with protective inner shell, the side wall four corners of protective inner shell close to protective shell are all fixed with concave block, rotationally connected with the shaft between the two side walls of concave block, the middle part shaft body surface of shaft is fixed with plug-in rod, limit hole is set in the rod body surface of one end of plug-in rod close to protective shell, buffer mechanism is set on the shell of protective shell.The utility model under the action of buffer mechanism, when the fragment that bounces fly is generated in the working process of die casting machine, after bouncing fly fragment impact to protective inner shell, make anti -loose block extrude buffer spring, make buffer spring occur elastic deformation, to impact force that protective inner shell is received is absorbed and offset, to its play buffer protection effect, reduce the damage to protective inner shell and protective shell, to prolong service life.

Description

Technical Field

[0001] This utility model relates to the field of protective shell technology, specifically a protective shell for a die-casting machine. Background Technology

[0002] A die casting machine is a machine used for pressure casting. It includes both hot and cold chamber casting machines. Under pressure, the die casting machine injects molten metal into a mold to cool and solidify. After the mold is opened, a solid metal casting is obtained. Originally used for die casting lettering, die casting machines are now typically equipped with protective shells to prevent workpiece fragments from flying around the machine and injuring operators.

[0003] Chinese Patent Publication No. CN222919602U discloses a protective door for a die-casting machine, which includes a protective door body and guide rails mounted on the die-casting machine. Two sets of guide rails are arranged vertically. A positioning seat is located on the side of the protective door body near the guide rails, with two sets of positioning seats corresponding to each set of guide rails. A guide seat and an adjusting seat are respectively located on the side of the positioning seat near the guide rails. The guide seat and adjusting seat are slidably connected to the guide rails. A connecting seat is provided between the upper and lower sets of positioning seats. A first lead screw and a second lead screw are rotatably connected between the upper and lower sets of positioning seats. The ends of the first and second lead screws away from the positioning seats are fixedly connected. The first and second lead screws are slidably connected to the two sets of adjusting seats respectively via nuts. A handle is provided at one end of the first lead screw passing through the positioning seat. This utility model discloses a protective door that facilitates installation and disassembly for later maintenance, reduces maintenance difficulty, and improves maintenance efficiency.

[0004] However, the protective door disclosed in the above patent still has certain shortcomings in actual application. Due to the easy occurrence of workpiece fragments flying off during the die casting process, the flying fragments will damage the protective door after impacting it. The existing protective door does not have a buffer structure, which makes the flying fragments have a huge impact on the protective door, seriously affecting the service life of the protective door. Utility Model Content

[0005] The purpose of this utility model is to provide a protective shell for die casting machines, so as to solve the problem mentioned in the background art that the existing protective doors of die casting machines do not have a buffer structure, which causes flying fragments to have a huge impact on the protective door and seriously affects the service life of the protective door.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective shell for a die-casting machine, comprising a protective outer shell, an inner protective shell provided on the inner side of the protective outer shell, concave blocks fixed at the four corners of one side wall of the inner protective shell near the protective outer shell, a rotating shaft rotatably connected between the two side walls of the concave blocks, an insert rod fixedly sleeved on the surface of the middle shaft of the rotating shaft, a limit hole opened on the surface of the rod at one end near the protective outer shell, and a buffer mechanism provided on the shell of the protective outer shell to cooperate with the limit hole.

[0007] Preferably, the buffer mechanism includes a buffer cylinder and a piston rod. The buffer cylinder is fixedly installed at the four corners of one side wall of the protective outer shell near the inner protective shell, and one end of the piston rod is slidably connected to the cylinder body of the buffer cylinder.

[0008] Preferably, the buffer mechanism further includes an anti-detachment block and a buffer spring. The anti-detachment block is disposed in the inner cavity of the buffer cylinder and fixedly installed at the end of the piston column. The two ends of the buffer spring are respectively fixed between the anti-detachment block and the inner cavity wall of the buffer cylinder, and the buffer spring is located on the side of the anti-detachment block away from the protective inner shell.

[0009] Preferably, the buffer mechanism further includes a limiting frame, a limiting rod, a lever, and an insertion hole. The insertion hole is opened on the side wall of the piston rod near the protective inner shell, and the insert rod is movably inserted into the cavity of the insertion hole. The limiting frame is fixedly installed on the circumferential side wall of the end column of the piston rod. One end of the limiting rod movably penetrates through the wall of the limiting frame, and the other end of the limiting rod movably penetrates through the inner cavity of the limiting frame, penetrates through the wall of the piston rod, and extends into the cavity of the insertion hole. The rod of the limiting rod is movably inserted into the cavity of the limiting hole. The lever is fixedly installed on the end of the limiting rod away from the insertion hole.

[0010] Preferably, the buffer mechanism further includes a reset plate and a reset spring disposed within the limit frame body. The reset plate is fixedly sleeved on the surface of the limit rod, and the reset spring is sleeved on the surface of the limit rod, with the reset spring located on the side of the reset plate away from the insertion hole.

[0011] Preferably, guide posts are fixed to the inner walls at both ends of the protective shell, and through guide holes are provided inside the guide posts.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention, by setting up a protective outer shell and a protective inner shell, allows for buffering. When fragments fly out during the operation of the die-casting machine, the fragments impact the protective inner shell, pushing it towards one side of the protective outer shell. Since the insert rod on the protective inner shell is fixedly connected to the piston column, the movement of the protective inner shell will cause the piston column to move along the buffer cylinder, causing the anti-detachment block to compress the buffer spring, resulting in elastic deformation of the buffer spring. This absorbs and offsets the impact force on the protective inner shell, providing buffering protection and reducing damage to both the inner and outer shells, thereby extending their service life. Furthermore, when it is necessary to disassemble the protective inner shell, the limiting rod can be pulled by the lever to pull it out of the limiting hole on the surface of the insert rod, thereby releasing the limiting fixation between the piston rod and the insert rod. Move the piston rod into the buffer cylinder so that the insert rod is pulled out of the insertion hole and exposed. After the insert rod is exposed, move the insert rod to rotate it to one side and release the piston rod to allow it to automatically reset. Then release the other three sets of piston rods and insert rods in sequence to remove the protective inner shell from the protective outer shell. It is very convenient and easy to maintain the protective inner shell. Attached Figure Description

[0013] Figure 1 This is a first-view structural schematic diagram of a protective shell for a die-casting machine according to the present invention; Figure 2 This utility model Figure 1 Enlarged structural diagram at point A; Figure 3 This is a second-view structural diagram of a protective shell for a die-casting machine according to the present invention; Figure 4 This is a schematic cross-sectional view of the buffer cylinder structure of a protective shell for a die-casting machine according to the present invention; Figure 5 This is a schematic diagram of the insert rod structure of a protective shell for a die-casting machine according to the present invention.

[0014] In the diagram: 1. Protective outer shell; 2. Protective inner shell; 3. Guide post; 4. Guide hole; 5. Concave block; 6. Rotating shaft; 7. Insert rod; 8. Buffer cylinder; 9. Piston column; 10. Limiting frame; 11. Reset plate; 12. Reset spring; 13. Limiting rod; 14. Toggle block; 15. Insertion hole; 16. Anti-disengagement block; 17. Buffer spring; 18. Limiting hole. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 This utility model provides a technical solution: a protective shell for a die-casting machine, including a protective outer shell 1, a protective inner shell 2 disposed inside the protective outer shell 1, with the side closest to the working area of ​​the die-casting machine being the inner side of the protective outer shell 1, concave blocks 5 respectively welded to the four corners of the side wall of the inner shell 2 near the protective outer shell 1, a rotating shaft 6 rotatably connected between the two side walls of the concave blocks 5 via bearings, an insert rod 7 welded and sleeved on the middle shaft surface of the rotating shaft 6, a limiting hole 18 opened on the end of the insert rod 7 near the protective outer shell 1, and a buffer mechanism provided on the shell of the protective outer shell 1 for use with the limiting hole 18, the buffer mechanism including a buffer cylinder 8 and a movable... The piston 9 and buffer cylinder 8 are welded to the four corners of the side wall of the protective outer shell 1 near the protective inner shell 2, respectively. One end of the piston 9 is slidably connected to the cylinder of the buffer cylinder 8, which allows the piston 9 to move along the inside of the buffer cylinder 8. The buffering mechanism also includes an anti-detachment block 16 and a buffer spring 17. The anti-detachment block 16 is located in the inner cavity of the buffer cylinder 8 and welded to the end of the piston 9, which is to prevent the piston 9 from detaching from the buffer cylinder 8. The two ends of the buffer spring 17 are welded between the anti-detachment block 16 and the inner wall of the buffer cylinder 8, and the buffer spring 17 is located on the side of the anti-detachment block 16 away from the protective inner shell 2, which is to provide buffering. In addition, the buffer mechanism includes a limiting frame 10, a limiting rod 13, a lever 14, and an insertion hole 15. The insertion hole 15 is located on the side wall of the piston rod 9 near the protective inner shell 2, and the insertion rod 7 is movably inserted into the cavity of the insertion hole 15. The limiting frame 10 is welded to the circumferential side wall of the end column of the piston rod 9. One end of the limiting rod 13 movably penetrates the wall of the limiting frame 10, and the other end of the limiting rod 13 movably penetrates the wall of the piston rod 9 through the inner cavity of the limiting frame 10 and extends into the cavity of the insertion hole 15. The rod of the limiting rod 13 is movably inserted into the cavity of the limiting hole 18. The lever 14 is welded to the end of the limiting rod 13 away from the insertion hole 15. The purpose is to facilitate the movement of the limiting rod 13 driven by the push block 14. The buffer mechanism also includes a reset plate 11 and a reset spring 12 located in the frame of the limiting frame 10. The reset plate 11 is welded and sleeved on the surface of the rod of the limiting rod 13, and the reset spring 12 is sleeved on the surface of the rod of the limiting rod 13. The reset spring 12 is located on the side of the reset plate 11 away from the insertion hole 15. The purpose is to enable the limiting rod 13 to automatically reset. The guide posts 3 are welded to the inner walls of both ends of the protective shell 1. The guide posts 3 have through guide holes 4 inside. The purpose is to facilitate the installation of the protective shell 1 on the die-casting machine tool via the guide posts 3 and guide holes 4.

[0017] Working principle: By setting up a protective outer shell 1 and a protective inner shell 2, under the action of the buffer mechanism, when fragments fly out during the operation of the die-casting machine, the flying fragments will push the protective inner shell 2 to move towards the side of the protective outer shell 1 after impacting the protective inner shell 2. Since the insert rod 7 on the protective inner shell 2 is fixedly connected to the piston column 9, the movement of the protective inner shell 2 will drive the piston column 9 to move along the buffer cylinder 8, causing the anti-detachment block 16 to squeeze the buffer spring 17, causing the buffer spring 17 to undergo elastic deformation, thereby absorbing and offsetting the impact force on the protective inner shell 2, playing a buffer protection role, reducing damage to the protective inner shell 2 and the protective outer shell 1, and thus extending the service life. Furthermore, when it is necessary to disassemble the protective inner shell 2, the limiting rod 13 can be pulled by the lever 14 to pull it out from the limiting hole 18 on the surface of the insert rod 7, thereby releasing the limiting fixation between the piston rod 9 and the insert rod 7. The piston rod 9 can be moved into the buffer cylinder 8, so that the insert rod 7 can be pulled out from the insertion hole 15. After the insert rod 7 is pulled out, the insert rod 7 can be rotated to one side, and the piston rod 9 can be released to automatically reset. Then, the other three sets of piston rods 9 and insert rods 7 can be released in sequence to remove the protective inner shell 2 from the protective outer shell 1. This is very convenient and easy to maintain the protective inner shell 2.

[0018] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective shell for a die-casting machine, comprising a protective outer shell (1), characterized in that: The inner side of the protective shell (1) is provided with a protective inner shell (2). The protective inner shell (2) is fixed with concave blocks (5) at the four corners of one side wall of the protective shell (1). A rotating shaft (6) is rotatably connected between the two side walls of the concave blocks (5). A plug rod (7) is fixedly sleeved on the surface of the middle shaft of the rotating shaft (6). A limit hole (18) is opened on the surface of the plug rod (7) near the protective shell (1). A buffer mechanism is provided on the shell of the protective shell (1) to cooperate with the limit hole (18).

2. The protective housing for a die-casting machine according to claim 1, characterized in that: The buffer mechanism includes a buffer cylinder (8) and a piston column (9). The buffer cylinder (8) is fixedly installed at the four corners of one side wall of the protective outer shell (1) near the protective inner shell (2). One end of the piston column (9) is slidably connected to the cylinder of the buffer cylinder (8).

3. The protective housing for a die-casting machine according to claim 2, characterized in that: The buffer mechanism further includes an anti-detachment block (16) and a buffer spring (17). The anti-detachment block (16) is disposed in the inner cavity of the buffer cylinder (8) and fixedly installed at the end of the piston column (9). The two ends of the buffer spring (17) are respectively fixed between the anti-detachment block (16) and the inner cavity wall of the buffer cylinder (8), and the buffer spring (17) is located on the side of the anti-detachment block (16) away from the protective inner shell (2).

4. The protective housing for a die-casting machine according to claim 3, characterized in that: The buffer mechanism further includes a limiting frame (10), a limiting rod (13), a lever (14), and a socket (15). The socket (15) is opened on the side wall of the piston column (9) near the protective inner shell (2), and the plug rod (7) is movably inserted into the cavity of the socket (15). The limiting frame (10) is fixedly installed on the circumferential side wall of the end column of the piston column (9). One end of the limiting rod (13) movably penetrates the wall of the limiting frame (10), and the other end of the limiting rod (13) movably penetrates the wall of the piston column (9) through the inner cavity of the limiting frame (10) and extends into the cavity of the socket (15). The rod of the limiting rod (13) is movably inserted into the cavity of the limiting hole (18). The lever (14) is fixedly installed at the end of the rod of the limiting rod (13) away from the socket (15).

5. The protective housing for a die-casting machine according to claim 4, characterized in that: The buffer mechanism also includes a reset plate (11) and a reset spring (12) disposed in the frame of the limiting frame (10). The reset plate (11) is fixedly sleeved on the surface of the limiting rod (13), and the reset spring (12) is sleeved on the surface of the limiting rod (13). The reset spring (12) is located on the side of the reset plate (11) away from the insertion hole (15).

6. The protective housing for a die-casting machine according to claim 1, characterized in that: The inner walls at both ends of the protective shell (1) are fixed with guide posts (3), and the guide posts (3) have through guide holes (4) inside.

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