Novel die-casting machine molten aluminum overflow detection device and die-casting machine

Abstract

The utility model discloses a novel die-casting machine molten aluminum overflow detection device and a die-casting machine. The device comprises a limit switch, a fuse wire, a magnet block, a signal wire and a wiring terminal box. The magnet blocks are attracted to the four corners of a bottom plate of the die-casting machine, one end of the fuse wire is fixed to the magnet block closest to the limiting switch, the other end of the fuse wire sequentially penetrates through circular rings on the four magnet blocks to be finally connected to a driving push rod of the limiting switch, and two wiring terminals of the limiting switch are connected to a wiring terminal box of equipment through signal lines. And the limit switch is fixed on the die-casting machine stand column through a bolt. The aluminum protection wire is simple in structure, convenient to operate, time-saving and labor-saving, and can solve the problem that the detection efficiency is low due to the fact that a traditional aluminum protection wire frequently triggers an aluminum liquid overflow alarm by mistake and the detection position is fixed after aluminum liquid overflows from a die of a die-casting machine. The fuse wire can be replaced without using any tool, and field operation personnel can complete the replacement, so that the interruption time after equipment failure is reduced, and the field production efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical components, in particular to a novel aluminum liquid overflow detection device for a die-casting machine and a die-casting machine. Background Art

[0002] During the low-pressure casting process of aluminum alloy wheels, when equipment fails, the mold is abnormal or personnel make operating errors, high-temperature molten aluminum will overflow from the mold. After the molten aluminum flows out of the mold, since the heat preservation furnace of the die-casting machine is in a high-pressure state, the molten aluminum will overflow onto the operating table where the on-site operator is located. If the equipment is still running at this time, the continuous overflow of molten aluminum will pose a huge threat to personnel safety and cause great damage to the equipment.

[0003] The traditional aluminum liquid overflow detection device has no limit switch. The aluminum overflow protection wire is directly fixed in the limit groove of the bottom plate of the die casting machine and directly connected to the terminal box of the equipment. The other end of the terminal box is fixed to the table. When aluminum liquid overflows, the aluminum overflow protection wire is melted, causing the closed circuit of the original aluminum overflow protection wire to become an open circuit, thereby triggering the equipment alarm and emergency shutdown. The aluminum overflow protection wire is a high-temperature resistant wire and is expensive, and the replacement process is cumbersome. Sometimes, due to the frequent leakage of the cooling water pipeline of the casting mold, the higher mold temperature will increase the temperature of the leaked water, and these high-temperature water will flow into the limit groove of the aluminum overflow protection wire. If the insulation skin of the aluminum overflow protection wire is damaged, it will also cause the aluminum liquid overflow alarm to be falsely triggered, causing the equipment to shut down abnormally. At the same time, the limit groove of the aluminum overflow protection wire on the bottom plate of the die casting machine is fixed. When a small-sized mold is installed, the limit groove is far away from the mold, resulting in a large amount of aluminum liquid overflow in the mold before it can be detected, which seriously affects the detection accuracy and efficiency. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a novel aluminum liquid overflow detection device for a die-casting machine.

[0005] According to one aspect of the utility model, a novel die-casting machine aluminum liquid overflow detection device is provided, which includes multiple magnet blocks, fusible links, limit switches, signal lines, and terminal boxes, wherein the magnet blocks have rings for passing the fusible links, one end of the fusible links is fixed to the ring of a magnet block, and the other end passes through the rings of multiple magnet blocks and is finally connected to the driving push rod of the limit switch, one end of the signal line is conductively connected to the limit switch, and the other end is conductively connected to the terminal box.

[0006] Preferably, the fusible link and the limit switch are connected in a knotted manner.

[0007] Preferably, the signal wire is a copper wire wrapped with an insulating sheath.

[0008] According to one aspect of the utility model, a die-casting machine is provided, comprising a die-casting machine bottom plate, a die-casting machine platform column and an equipment abnormality alarm device, characterized in that the above-mentioned novel die-casting machine aluminum liquid overflow detection device is also provided, wherein a magnet block is adsorbed on the die-casting machine bottom plate, a limit switch is fixed to the die-casting machine platform column by bolts, one end of a signal line is conductively connected to the fixing bolts of the limit switch, thereby indirectly connecting to the die-casting machine bottom plate to form a loop, and when the limit switch is closed, the equipment abnormality alarm device is triggered and the machine automatically stops.

[0009] Preferably, one end of the fusible link is fixed to a ring on the magnet block closest to the limit switch, and the other end passes through the rings on multiple magnet blocks in sequence and is finally connected to the driving push rod of the limit switch, so that the fusible link is in a stretched state and a pulling force is applied to the limit switch to put it in a disconnected state.

[0010] The beneficial effects of the utility model are as follows: the new aluminum liquid overflow detection device has a simple structure, is easy to use, safe and reliable, and uses the utility model to solve the problems of frequent false triggering of aluminum liquid overflow alarm by traditional aluminum protection wires, high cost of overflow aluminum protection wires, low detection efficiency due to fixed detection position, and slow replacement efficiency of overflow protection wires. The device uses kite wires to replace traditional high-temperature resistant wires, which significantly reduces the maintenance cost after each overflow aluminum detection. At the same time, the replacement of the fuse wire can be completed by on-site operators without the use of any tools, thereby reducing the interruption time after equipment failure and significantly improving on-site production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front view of an embodiment of the utility model;

[0012] Figure 2 A top view of an embodiment of the utility model;

[0013] Figure 3 It is a three-dimensional diagram of an embodiment of the utility model.

[0014] The numbers in the figure represent the following: 1. Magnet block, 2. Fuse wire, 3. Limit switch, 4. Signal line, 5. Terminal box, 6. Die-casting machine base plate, 7. Die-casting machine column. DETAILED DESCRIPTION

[0015] The exemplary embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. The exemplary embodiments described below and shown in the accompanying drawings are intended to teach the principles of the present invention, so that those skilled in the art can implement and use the present invention in several different environments and for several different applications. Therefore, the scope of protection of the present invention is defined by the attached claims, and the exemplary embodiments are not intended to be, and should not be considered to be, a restrictive description of the scope of protection of the present invention. Moreover, for the convenience of description, the sizes of the various parts shown in the accompanying drawings are not necessarily drawn according to the actual proportional relationship, and the orientation description, such as the orientation or position relationship indicated by the inside, outside, top, bottom, left, right, top, bottom, etc., are all based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Throughout the accompanying drawings, the same elements are represented by the same or similar figure marks. Conventional structures or local structures will be omitted when they may cause confusion or difficulty in observing and understanding the understanding of the present disclosure. Unless otherwise specifically stated, the order and numerical values ​​of components and assembly steps set forth in the embodiments do not limit the scope of the present invention.

[0016] The utility model is further described in detail below in conjunction with the embodiments.

[0017] like Figure 1 , 2 As shown, the new die-casting machine aluminum liquid overflow detection device of the embodiment of the utility model includes a magnet block 1, a fuse 2, a limit switch 3, a signal line 4, and a terminal box 5.

[0018] The magnet block 1 is adsorbed on the four corners of the square die-casting machine bottom plate 6. The magnet block 1 has a circular ring for the fuse 2 to be fixed and passed through, thereby playing the role of fixing and limiting the position of the fuse 2.

[0019] Fix one end of the fusible link 2 on a ring on the magnet block 1 closest to the limit switch 3, and pass the other end through the rings on the four magnet blocks 1 in turn, and finally connect to the driving push rod of the limit switch 3. After the connection is completed, the fusible link 2 forms a closed square and ensure that the fusible link 2 is in a tightened state.

[0020] The limit switch 3 is fixed on the die-casting machine column 7 and fastened by bolts. The fusible line 2 is connected to the limit switch 3 by a knot connection. The fusible line 2 is made of a kite line or a fishing line. The kite line and the fishing line have high strength at room temperature and are easy to melt when exposed to high-temperature aluminum liquid. The signal line 4 is a copper wire wrapped with an insulating skin.

[0021] When using this patent, before the casting machine is put into production, the limit switch 3 is first fixed to the die-casting machine column 7 by bolts, and one end of the signal line 4 is connected to the fixing bolt of the limit switch 3, that is, it is indirectly connected to the die-casting machine bottom plate 6, and the other end is connected to the terminal box 5 to form a loop. The function of the limit switch 3 is equivalent to the switch of the loop, and then the magnet block 1 is adsorbed on the four corners of the die-casting machine bottom plate 6, and one end of the fuse 2 is fixed to a ring on the magnet block 1 closest to the limit switch 3, and the other end passes through the rings on the four magnet blocks 1 in turn and is finally connected to the driving push rod of the limit switch 3, and the fuse 2 is ensured to be in a tightened state, and the limit switch 3 is given a pulling force by relying on the tight fuse, so that the limit switch 3 is in a disconnected state. At this point, the new die-casting machine aluminum liquid overflow detection device is installed.

[0022] During the casting process, once the aluminum liquid overflows from the mold, the high-temperature aluminum liquid melts the tightly tightened fuse link 2. After the fuse link 2 is loosened, the driving push rod of the limit switch 3 is no longer subjected to tension, and thus returns to its original position, the limit switch 3 is closed, and the signal line 4, the closed limit switch 3, the die-casting machine bottom plate 6 and the terminal box 5 form a closed loop, triggering the abnormal alarm device of the equipment and automatically shutting down. The operator finds the alarm, cleans the aluminum, and after handling the abnormality, only needs to replace a new fuse link 2 or reconnect the blown fuse link 2.

[0023] In addition, when replacing molds of different sizes, the position of the magnet block 1 adsorbed on the bottom plate 6 of the die-casting machine can be adjusted. When the mold is large, the adsorption position of the magnet block 1 is far away from the bottom plate 6 of the die-casting machine. When the mold is small, the adsorption position of the magnet block 1 is close to the bottom plate 6 of the die-casting machine, thereby ensuring the detection speed of the aluminum liquid overflow detection device for molds of different sizes.

[0024] The technical solutions provided by the embodiments of the present utility model are introduced above. The principles and implementation methods of the embodiments of the present utility model are described in this article using specific examples. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present utility model. At the same time, for those of ordinary skill in the art, according to the embodiments of the present utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present utility model. It should be understood that variations can be made within the spirit and scope of the described utility model concept. Therefore, it is intended that the present utility model is not limited to the described embodiments, but will have the full scope defined by the language of the attached claims.

Claims

1. A new type of aluminum liquid overflow detection device for die casting machine, characterized in that: A plurality of magnet blocks (1), a fusible link (2), a limit switch (3), a signal line (4), and a terminal box (5), wherein the magnet block (1) has a ring for passing the fusible link (2), one end of the fusible link (2) is fixed to a ring of a magnet block (1), and the other end passes through the rings of the plurality of magnet blocks (1) and is finally connected to a driving push rod of the limit switch (3), one end of the signal line (4) is conductively connected to the limit switch (3), and the other end is conductively connected to the terminal box (5).

2. The new die-casting machine aluminum liquid overflow detection device according to claim 1 is characterized in that: The connection mode between the fuse (2) and the limit switch (3) is a knot connection.

3. The new die-casting machine aluminum liquid overflow detection device according to claim 1 is characterized in that: The signal line (4) is a copper wire wrapped with an insulating sheath.

4. A die-casting machine, comprising a die-casting machine bottom plate (6), a die-casting machine stand column (7) and an equipment abnormality alarm device, characterized in that: There is also a new type of aluminum liquid overflow detection device for a die-casting machine as described in any one of claims 1 to 3, wherein the magnet block (1) is adsorbed on the bottom plate (6) of the die-casting machine, the limit switch (3) is fixed to the die-casting machine table column (7) by bolts, and one end of the signal line (4) is connected to the fixing bolt of the limit switch (3), thereby indirectly connecting with the bottom plate (6) of the die-casting machine to form a loop, and when the limit switch (3) is closed, the equipment abnormality alarm device is triggered and the machine automatically stops.

5. The die casting machine according to claim 4, characterized in that: One end of the fusible link (2) is fixed to a ring on the magnet block (1) closest to the limit switch (3), and the other end passes through the rings on the plurality of magnet blocks (1) in sequence and is finally connected to the driving push rod of the limit switch (3), so that the fusible link (2) is in an expanded state and a pulling force is applied to the limit switch (3), so that the limit switch (3) is in an open state.

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