Die casting machine with hand clamping prevention device

Abstract

The invention relates to the technical field of die-casting machines, and discloses a die-casting machine with an anti-pinch device, which comprises a die-casting machine body, a liquid supply assembly and a driving part, a fixed die and a movable die are arranged on the die-casting machine body, the distance between the movable die and the fixed die is adjustable, the liquid supply assembly is arranged above the fixed die and the movable die, and the driving piece drives the liquid supply assembly to move up and down. The two sides of the die-casting machine body communicate with cleaning assemblies, and each cleaning assembly comprises an elastic flushing piece. Through the cooperation effect of the elastic flushing part and the limiting alarm assembly, when the die-casting machine body does not lock the movable die and the movable die gets close to the fixed die, a worker can be reminded in time, enough time is given to evacuate, the safety and reliability of the whole cleaning process are further improved, and the safety of the die-casting machine is improved through multiple safety guarantee measures. Accident risks caused by accidental starting or misoperation of equipment are reduced to the maximum extent, and economic losses and personnel injuries caused by safety accidents are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting machines, and in particular to a die-casting machine with a hand pinch prevention device. Background Art

[0002] A die-casting machine is a device that injects molten metal into a mold cavity under high pressure and high speed and cools and solidifies under pressure. First, the metal material is placed in a furnace and heated to melt it completely into a liquid state. The molten metal is sent into the injection system of the die-casting machine through a conveying device. The injection system consists of an injection cylinder, an injection piston, and an injection punch. The injection cylinder is filled with molten metal. The injection piston pushes the molten metal under high pressure, making it quickly enter the mold cavity through the injection punch. After the molten metal enters the mold cavity, it begins to cool and solidify. When the metal part cools and solidifies, the mold opening mechanism of the die-casting machine starts to work, opens the mold, and after taking out the part, the die-casting machine enters the next working cycle and continues injection molding; After the die-casting machine completes the production task, cleaning and maintaining the mold is a key link to ensure the performance of the equipment and the quality of the castings. For some special-shaped parts, it is necessary to manually clean some corners inside the mold. However, this process also comes with potential safety risks. If the operator fails to lock the equipment according to the safety regulations during mold cleaning and maintenance, serious hand pinch accidents may occur due to the accidental startup of the equipment.

[0003] To solve the above problems, a die-casting machine with a hand pinch prevention device is proposed in this application. Summary of the Invention

[0004] The present invention provides a die-casting machine with a hand pinch prevention device, which solves the problem that in the related art, when the operator fails to lock the equipment according to the safety regulations during mold cleaning and maintenance, serious hand pinch accidents may occur due to the accidental startup of the equipment.

[0005] A die-casting machine with a hand pinch prevention device provided by the present invention includes a die-casting machine body, a liquid supply assembly, and a driving member; A fixed mold and a movable mold are arranged on the die-casting machine body, and the distance between the movable mold and the fixed mold is adjustable. The liquid supply assembly is arranged above the fixed mold and the movable mold, and the driving member drives the liquid supply assembly to move up and down; Cleaning assemblies are communicated on both sides of the die-casting machine body. The cleaning assembly includes an elastic flushing member, and the elastic flushing member is installed at one end of the cleaning assembly far from the liquid supply assembly. A limit alarm assembly is installed on the cleaning assembly; The limit alarm component includes a conductive rod and a trigger alarm component. There is electrorheological fluid provided inside the limit alarm component. The conductive rod is arranged in the electrorheological fluid. The trigger alarm component is installed on the limit alarm component and electrically connected to the conductive rod. An insertion rod that is inserted into the limit alarm component and placed in the electrorheological fluid is installed on the elastic flushing component. A pressing rod corresponding to the trigger alarm component is installed on the elastic flushing component. A handheld flushing component for flushing the fixed mold and the moving mold is communicated with the cleaning component.

[0006] As a further optimized solution of the present invention, the cleaning component further includes a first liquid supply pipe, a cleaning tank, a liquid guide cylinder and a first control valve. Both sides of the liquid supply component are communicated with the first liquid supply pipe. The end of the first liquid supply pipe far from the liquid supply component is connected to a cleaning tank. A liquid guide cylinder communicated with the first liquid supply pipe is installed inside the cleaning tank. The elastic flushing component is arranged at the end of the cleaning tank far from the first liquid supply pipe and communicated with the liquid guide cylinder. A first control valve is installed on the first liquid supply pipe.

[0007] As a further optimized solution of the present invention, the elastic flushing component includes a flushing disc, a liquid guide pipe, a liquid guide piston and a first spring. The liquid guide piston is slidably arranged inside the liquid guide cylinder. One end of the liquid guide piston is connected to a liquid guide pipe. One end of the liquid guide pipe slidably passes through one end of the liquid guide cylinder and is connected to a flushing disc. Flushing holes are formed on the side of the flushing disc far from the liquid guide pipe. The first spring is sleeved on the liquid guide pipe and located inside the liquid guide cylinder. Both ends of the first spring are respectively connected to the inner wall of one end of the liquid guide cylinder and one end of the liquid guide piston. A liquid inlet hole communicated with the liquid guide pipe is formed inside the liquid guide piston.

[0008] As a further optimized solution of the present invention, the limit alarm component further includes a limit box and a liquid pipe. The limit box is installed on the cleaning tank. The liquid pipe is installed inside the limit box. The electrorheological fluid and the conductive rod are both arranged inside the liquid pipe. One end of the insertion rod is connected to the inner side of the flushing disc, and the other end slidably inserts into the liquid pipe. The trigger alarm component is installed on the limit box.

[0009] As a further optimized solution of the present invention, the trigger alarm member includes an assembly box, a power supply, a sound and light alarm, and a push-button switch. The assembly box is installed on the limit box. The power supply is horizontally arranged in the assembly box. The sound and light alarm is installed on the assembly box. A chute is opened at the top of the limit box. A second spring is installed on the inner wall of the chute. One end of the second spring is installed with a bearing block that is slidably matched with the chute. The push-button switch is installed on the bearing block. The power supply and the sound and light alarm are connected by a first wire. The power supply and the push-button switch are connected by a second wire. One end of the conductive rod and the sound and light alarm are connected by a third wire. The other end of the conductive rod and the push-button switch are connected by a fourth wire. The conductive rod, the power supply, the sound and light alarm, the push-button switch, the first wire, the second wire, the third wire, and the fourth wire are connected in series to form a closed loop. The pressing rod is installed inside the flushing disc and above the inserting rod, and the end of the pressing rod is arranged towards the push-button switch.

[0010] As a further optimized solution of the present invention, the handheld flushing member includes a second liquid supply pipe, a second control valve, a hose, a flushing head, and a card seat. The second liquid supply pipe is connected to the first liquid supply pipe and communicates with it. A second control valve is installed on the second liquid supply pipe. One end of the second liquid supply pipe away from the first liquid supply pipe communicates with a hose. One end of the hose away from the second liquid supply pipe is connected to a flushing head. A card seat is installed on the top of the flushing disc. A card slot is opened on the card seat. The flushing head is clamped in the card slot.

[0011] As a further optimized solution of the present invention, the liquid supply assembly includes a loading frame and a liquid supply cylinder. The loading frame is arranged above the fixed mold and the moving mold and is driven by a driving member to move up and down. The liquid supply cylinder is installed in the loading frame. The two first liquid supply pipes are respectively connected to both sides of the liquid supply cylinder and communicate with its interior.

[0012] As a further optimized solution of the present invention, a liquid guiding member is connected to the liquid supply cylinder, and the liquid guiding member is used to guide the water source into the liquid supply cylinder.

[0013] As a further optimized solution of the present invention, the liquid guiding member includes a water pump and a water pipe. The top end of the liquid supply cylinder communicates with a water pipe. One end of the water pipe away from the liquid supply cylinder is connected to the water pump.

[0014] As a further optimized solution of the present invention, the driving member includes a cylinder and a mounting frame. A cylinder is installed on the die casting machine body through the mounting frame, and the cylinder is located above the fixed mold and the moving mold. The loading frame is connected to the driving end of the cylinder and is driven by the cylinder to move up and down.

[0015] The above technical solution of the present invention has the following beneficial technical effects: 1. After the product is die-cast and formed, the moving mold can be moved away from the fixed mold. Then, the liquid supply component is driven by a driving member to move between the moving mold and the fixed mold. Then, the water source can be guided to the cleaning components on both sides through the liquid supply component. The elastic flushing members on the two cleaning components can respectively flush the inner sides of the fixed mold and the moving mold. To facilitate the cleaning of the corners inside the fixed mold and the moving mold, the staff can hold a handheld flushing member to flush the corners inside the fixed mold and the moving mold. When the moving mold approaches the fixed mold without being locked by the die-casting machine body, the elastic flushing member on the cleaning component can be used for buffering. And under the action of water pressure, the buffering force can be further increased, and there is enough time for the staff's hand to be withdrawn from between the fixed mold and the moving mold, effectively preventing the occurrence of hand clamping accidents and ensuring the personal safety of the operator; 2. When the elastic flushing member moves into the cleaning component under the impact of the moving mold, the insertion rod on the elastic flushing member can move in the electrorheological fluid in the limit alarm component. The pressing rod on the elastic flushing member presses the trigger alarm member. After the trigger alarm member is pressed, it is electrically connected to the conductive rod in the limit alarm component, so that the conductive rod is connected to the trigger alarm member. After the conductive rod is connected, an electric field is applied to the electrorheological fluid in the limit alarm component, making the electrorheological fluid harden and playing a role in limiting the insertion rod, thereby fixing the elastic flushing member, further preventing the moving mold from continuing to approach the fixed mold, providing more reliable protection for the operator's hand, and the trigger alarm member can emit an alarm after being pressed, timely reminding the operator to quickly withdraw the hand from between the fixed mold and the moving mold, avoiding hand clamping accidents caused by negligence or untimely reaction, and improving the safety of operation; 3. Through the cooperation of the elastic flushing member and the limit alarm component, when the moving mold approaches the fixed mold without being locked by the die-casting machine body, the staff can be timely reminded and given enough time to evacuate, further improving the safety and reliability of the entire cleaning process. Through multiple safety guarantee measures, the accident risk caused by accidental startup or operation error of the equipment is minimized, and the economic losses and personal injuries caused by safety accidents are reduced. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of a die-casting machine with an anti-hand-clamping device proposed by the present invention.

[0017] Figure 2 It is a schematic diagram of the structures of the liquid supply component, the cleaning component and the limit alarm component of the present invention.

[0018] Figure 3 For the present invention Figure 2 Front view of the whole.

[0019] Figure 4 It is a schematic diagram of the structures of the liquid supply component, the cleaning component and the handheld flushing member of the present invention.

[0020] Figure 5 This is an internal cross-sectional view of the cleaning box and the limiting box of the present invention.

[0021] Figure 6 This is an internal cross-sectional view of the liquid guide cylinder and the liquid pipe of the present invention.

[0022] Figure 7 For the present invention Figure 6 front elevation view of the whole.

[0023] Figure 8 This is a schematic structural view of the limit alarm component of the present invention.

[0024] Figure 9 This is a schematic structural view of the elastic flushing member of the present invention.

[0025] Figure 10 For the present invention Figure 1 enlarged view of A in.

[0026] Reference numerals: 1, die casting machine body; 101, fixed mold; 102, moving mold; 2, liquid supply component; 21, loading frame; 22, liquid supply cylinder; 3, driving member; 31, cylinder; 32, mounting frame; 4, cleaning component; 41, elastic flushing member; 411, flushing disc; 412, liquid guide pipe; 413, liquid guide piston; 414, first spring; 415, liquid inlet hole; 42, insertion rod; 43, pressing rod; 44, first liquid supply pipe; 45, cleaning box; 46, liquid guide cylinder; 47, first control valve; 5, limit alarm component; 51, conductive rod; 52, trigger type alarm; 521, assembly box; 522, power supply; 5221, first wire; 5222, second wire; 523, sound and light alarm; 5231, third wire; 524, pressing type switch; 5241, fourth wire; 525, second spring; 526, bearing block; 53, limiting box; 54, liquid pipe; 6, hand-held flushing member; 61, second liquid supply pipe; 62, second control valve; 63, hose; 64, flushing head; 65, card seat; 7, liquid guiding member; 71, water pump; 72, water pipe. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0028] As Figures 1 - 10 shown, a die casting machine with a hand pinch prevention device proposed by the present invention includes a die casting machine body 1, a liquid supply component 2, and a driving member 3; A fixed mold 101 and a movable mold 102 are provided on the die-casting machine body 1, and the distance between the movable mold 102 and the fixed mold 101 is adjustable. The liquid supply assembly 2 is arranged above the fixed mold 101 and the movable mold 102, and the driving member 3 drives the liquid supply assembly 2 to move up and down. Both sides of the die-casting machine body 1 are communicated with a cleaning assembly 4. The cleaning assembly 4 includes an elastic flushing member 41. The elastic flushing member 41 is installed at one end of the cleaning assembly 4 away from the liquid supply assembly 2. A limit alarm assembly 5 is installed on the cleaning assembly 4. The limit alarm assembly 5 includes a conductive rod 51 and a trigger type alarm member 52. There is an electrorheological fluid in the limit alarm assembly 5. The conductive rod 51 is arranged in the electrorheological fluid. The trigger type alarm member 52 is installed on the limit alarm assembly 5 and is electrically connected to the conductive rod 51. A plug rod 42 inserted into the limit alarm assembly 5 and placed in the electrorheological fluid is installed on the elastic flushing member 41. A pressing rod 43 corresponding to the trigger type alarm member 52 is installed on the elastic flushing member 41. A handheld flushing member 6 for cleaning the inside of the fixed mold 101 and the movable mold 102 is communicated with the cleaning assembly 4.

[0029] After the die-casting machine body 1 finishes die-casting, the movable mold 102 moves away from the fixed mold 101. The driving member 3 drives the liquid supply assembly 2 to move downward to between the movable mold 102 and the fixed mold 101. The liquid supply assembly 2 conveys water to the cleaning assembly 4. The water flows through the elastic flushing member 41 to perform a preliminary flushing on the fixed mold 101 and the movable mold 102. When cleaning the inner corners of the movable mold 102 and the fixed mold 101, the operator can hold the handheld flushing member 6 to perform flushing. During use, when the movable mold 102 is not locked and the movable mold 102 accidentally approaches the fixed mold 101, the movable mold 102 pushes the elastic flushing member 41 to move inward into the cleaning assembly 4. Under the elastic action of the elastic flushing member 41, a buffering effect can be achieved, and under the action of water pressure, a further buffering effect can be achieved. The plug rod 42 on the elastic flushing member 41 moves in the electrorheological fluid of the limit alarm assembly 5. At the same time, the pressing rod 43 presses the trigger type alarm member 52. After the trigger type alarm member 52 is pressed, it is electrically connected to the conductive rod 51, making the conductive rod 51 connected. After the conductive rod 51 is connected, an electric field is applied to the electrorheological fluid, and the electrorheological fluid hardens to restrict the movement of the plug rod 42, thereby fixing the elastic flushing member 41 to prevent the movable mold 102 from continuing to approach the fixed mold 101. At the same time, the trigger type alarm member 52 issues an alarm to remind the operator, enabling the staff to react quickly.

[0030] Such as Figure 2 、 Figure 3 、 Figure 4 And Figure 5As shown in the figure, in this embodiment, the cleaning assembly 4 further includes a first liquid supply pipe 44, a cleaning tank 45, a liquid guide cylinder 46 and a first control valve 47. Both sides of the liquid supply assembly 2 are communicated with a first liquid supply pipe 44. One end of the first liquid supply pipe 44 away from the liquid supply assembly 2 is connected to a cleaning tank 45. A liquid guide cylinder 46 communicated with the first liquid supply pipe 44 is installed in the cleaning tank 45. The elastic flushing member 41 is arranged at one end of the cleaning tank 45 away from the first liquid supply pipe 44 and is communicated with the liquid guide cylinder 46. A first control valve 47 is installed on the first liquid supply pipe 44.

[0031] The liquid in the liquid supply assembly 2 is transported to the liquid guide cylinder 46 through the first liquid supply pipe 44 and flows to the elastic flushing member 41 through the liquid guide cylinder 46. When the moving die 102 squeezes the elastic flushing member 41, the liquid pressure in the elastic flushing member 41 increases, and part of the liquid may flow back to the liquid guide cylinder 46. Moreover, the elastic flushing member 41 itself has an elastic effect and can play a buffering role.

[0032] As Figure 5 、 Figure 6 And Figure 9 shown in the figure, in this embodiment, the elastic flushing member 41 includes a flushing disc 411, a liquid guide pipe 412, a liquid guide piston 413 and a first spring 414. The liquid guide piston 413 is slidably arranged in the liquid guide cylinder 46. One end of the liquid guide piston 413 is connected to a liquid guide pipe 412. One end of the liquid guide pipe 412 slidably passes through one end of the liquid guide cylinder 46 and is connected to a flushing disc 411. Flushing holes are formed on one side of the flushing disc 411 away from the liquid guide pipe 412. The first spring 414 is sleeved on the liquid guide pipe 412 and is located in the liquid guide cylinder 46. Two ends of the first spring 414 are respectively connected to the inner wall of one end of the liquid guide cylinder 46 and one end of the liquid guide piston 413. A liquid inlet hole 415 communicated with the liquid guide pipe 412 is formed in the liquid guide piston 413.

[0033] The cleaning liquid enters the liquid guide pipe 412 from the liquid guide cylinder 46 through the liquid inlet hole 415 and then sprays out from the flushing holes of the flushing disc 411 to flush the fixed die 101 and the moving die 102. When the moving die 102 squeezes the flushing disc 411, the flushing disc 411 drives the liquid guide pipe 412 and the liquid guide piston 413 to move into the liquid guide cylinder 46, stretching the first spring 414 to play a buffering role. At the same time, the movement of the liquid guide piston 413 will cause the liquid pressure in the liquid guide cylinder 46 to change, further improving the buffering effect.

[0034] As Figure 4 、 Figure 5 And Figure 6As shown in the figure, in this embodiment, the limit alarm assembly 5 further includes a limit box 53 and a liquid pipe 54. The limit box 53 is installed on the cleaning box 45, and the liquid pipe 54 is installed in the limit box 53. The electrorheological fluid and the conductive rod 51 are both arranged in the liquid pipe 54. One end of the insertion rod 42 is connected to the inner side of the flushing disc 411, and the other end slides into the liquid pipe 54. The trigger alarm 52 is installed on the limit box 53.

[0035] When the flushing disc 411 is pushed inward by the moving die 102, the insertion rod 42 moves together with the flushing disc 411 and inserts deeper into the electrorheological fluid in the liquid pipe 54. At the same time, the pressing rod 43 presses the trigger alarm 52, the trigger alarm 52 turns on the circuit, the conductive rod 51 applies an electric field to the electrorheological fluid, the electrorheological fluid hardens, restricts the movement of the insertion rod 42, and further restricts the movement of the flushing disc 411, preventing the moving die 102 from approaching the fixed die 101 further.

[0036] As Figure 6 、 Figure 7 、 Figure 8 and Figure 9 shown in the figure, in this embodiment, the trigger alarm 52 includes an assembly box 521, a power supply 522, a sound and light alarm 523 and a push-button switch 524. The assembly box 521 is installed on the limit box 53. The power supply 522 is arranged horizontally in the assembly box 521. The sound and light alarm 523 is installed on the assembly box 521. A chute is opened at the top of the limit box 53. The inner wall of the chute is installed with a second spring 525. One end of the second spring 525 is installed with a bearing block 526 that is slidably matched with the chute. The push-button switch 524 is installed on the bearing block 526. A first wire 5221 is connected between the power supply 522 and the sound and light alarm 523. A second wire 5222 is connected between the power supply 522 and the push-button switch 524. A third wire 5231 is connected between one end of the conductive rod 51 and the sound and light alarm 523. A fourth wire 5241 is connected between the other end of the conductive rod 51 and the push-button switch 524. A closed loop is formed in series among the conductive rod 51, the power supply 522, the sound and light alarm 523, the push-button switch 524, the first wire 5221, the second wire 5222, the third wire 5231 and the fourth wire 5241. The pressing rod 43 is installed on the inner side of the flushing disc 411 and above the insertion rod 42, and the end of the pressing rod 43 is arranged towards the push-button switch 524.

[0037] When the pressing rod 43 moves along with the flushing disc 411 and presses the push-button switch 524, the push-button switch 524 closes, the circuit is turned on, the power supply 522 supplies power to the entire circuit, and the current forms a loop through the first wire 5221, the sound and light alarm 523, the third wire 5231, the conductive rod 51, the fourth wire 5241, the push-button switch 524, and the second wire 5222. After the conductive rod 51 is energized, an electric field is applied to the electrorheological fluid, and the electrorheological fluid hardens to restrict the movement of the insertion rod 42. At the same time, the sound and light alarm 523 emits an alarm sound and light to remind the operator. The second spring 525 and the bearing block 526 keep the push-button switch 524 in the reset state when it is not pressed.

[0038] As Figure 2 , Figure 4 and Figure 6 shown, in this embodiment, the handheld flushing member 6 includes a second liquid supply pipe 61, a second control valve 62, a hose 63, a flushing head 64, and a card seat 65. The second liquid supply pipe 61 is connected to and communicates with the first liquid supply pipe 44. A second control valve 62 is installed on the second liquid supply pipe 61. One end of the second liquid supply pipe 61 away from the first liquid supply pipe 44 communicates with a hose 63. One end of the hose 63 away from the second liquid supply pipe 61 is connected to a flushing head 64. A card seat 65 is installed on the top of the flushing disc 411. A card slot is provided on the card seat 65, and the flushing head 64 is clamped in the card slot.

[0039] When manually cleaning the inner corners of the fixed mold 101 and the moving mold 102, the first control valve 47 on the first liquid supply pipe 44 can be closed, and the second control valve 62 on the second liquid supply pipe 61 can be opened. The cleaning liquid in the first liquid supply pipe 44 is transported to the hose 63 through the second liquid supply pipe 61. The operator holds the flushing head 64 and sprays the cleaning liquid onto the mold corners for cleaning. When not in use, the flushing head 64 is clamped in the card slot of the card seat 65, which is convenient for storage.

[0040] As Figure 2 and Figure 3 shown, in the embodiment, the liquid supply assembly 2 includes a loading frame 21 and a liquid supply cylinder 22. The loading frame 21 is arranged above the fixed mold 101 and the moving mold 102 and is driven by a driving member 3 to move up and down. The liquid supply cylinder 22 is installed in the loading frame 21. Two first liquid supply pipes 44 are respectively connected to both sides of the liquid supply cylinder 22 and communicate with its interior.

[0041] The driving member 3 drives the loading frame 21 to move up and down, driving the liquid supply cylinder 22 to move to a suitable position. The water source enters the liquid supply cylinder 22 through the liquid guiding member 7, and the cleaning liquid in the liquid supply cylinder 22 is transported to the cleaning assembly 4 through the first liquid supply pipe 44.

[0042] As Figure 1 , Figure 2 and Figure 10As shown in the figure, in this embodiment, a liquid guiding member 7 is connected to the liquid supply cylinder 22, and the liquid guiding member 7 is used to guide the water source into the liquid supply cylinder 22. The liquid guiding member 7 includes a water pump 71 and a water pipe 72. The top end of the liquid supply cylinder 22 is communicated with the water pipe 72, and one end of the water pipe 72 away from the liquid supply cylinder 22 is connected to the water pump 71.

[0043] After the water pump 71 is started, suction is generated, and the external water source is sucked and pumped into the liquid supply cylinder 22 through the water pipe 72. The water pump 71 serves as a power source to provide the power for transporting the water source. The water pipe 72 connects the water pump 71 and the liquid supply cylinder 22 to realize the transportation of the water source and ensure the stable replenishment of the cleaning liquid in the liquid supply cylinder 22.

[0044] As Figure 1 and Figure 2 shown in the figure, in this embodiment, the driving member 3 includes a cylinder 31 and a mounting frame 32. The cylinder 31 is mounted on the die casting machine body 1 through the mounting frame 32, and the cylinder 31 is located above the fixed die 101 and the moving die 102. The loading frame 21 is connected to the driving end of the cylinder 31 and is driven by the cylinder 31 to move up and down.

[0045] The cylinder 31 is fixed on the die casting machine body 1 through the mounting frame 32, driving the loading frame 21 to move up and down, so that the liquid supply assembly 2 moves between the moving die 102 and the fixed die 101.

[0046] The specific working principle of the present invention is as follows: The die casting machine body 1 is the basis of the entire equipment. During normal die casting operations, the moving die 102 approaches the fixed die 101 and closes the mold, injecting the molten metal into the mold cavity to complete die casting. When die casting is completed, the moving die 102 moves away from the fixed die 101. At this time, the driving member 3 starts to work, and the driving end of the cylinder 31 extends, driving the loading frame 21 connected to it to move downward. The liquid supply cylinder 22 is installed in the loading frame 21, and the liquid supply cylinder 22 moves with the loading frame 21 between the moving die 102 and the fixed die 101 to prepare for the subsequent cleaning work; After the liquid supply cylinder 22 moves into place, the liquid guiding member 7 starts to work. The water pump 71 in the liquid guiding member 7 is started, generating suction, sucking and pumping the external water source into the liquid supply cylinder 22 through the water pipe 72 to replenish the cleaning liquid in the liquid supply cylinder 22. The cleaning liquid in the liquid supply cylinder 22 is transported to the cleaning assembly 4 through the first liquid supply pipes 44 communicated on both sides. The first control valve 47 on the first liquid supply pipe 44 can adjust the flow rate of the cleaning liquid according to actual needs. The cleaning liquid enters the liquid guiding cylinder 46 through the first liquid supply pipe 44 and flows to the elastic flushing member 41. The cleaning liquid enters the liquid guiding pipe 412 from the liquid guiding cylinder 46 through the liquid inlet hole 415 in the liquid guiding piston 413, and then sprays out from the flushing holes of the flushing disc 411 to perform a preliminary flushing on the fixed die 101 and the moving die 102; When flushing the inner corners of the fixed mold 101 and the moving mold 102, the staff can use the handheld flushing part 6 to clean the corners of the mold. The cleaning liquid is transported from the first liquid supply pipe 44 to the hose 63 through the second liquid supply pipe 61. The flow rate and on / off of the cleaning liquid can be controlled by the second control valve 62. The staff holds the flushing head 64 and sprays the cleaning liquid onto the corners of the mold for cleaning. When not in use, the flushing head 64 is clamped in the card slot of the card seat 65, which is convenient for storage. During the cleaning process, if the moving mold 102 accidentally approaches the fixed mold 101, the moving mold 102 will push the flushing plate 411 of the elastic flushing part 41. The flushing plate 411 drives the liquid guide pipe 412 and the liquid guide piston 413 to move into the liquid guide cylinder 46, stretching the first spring 414, playing a buffering role and leaving time for the staff to draw out their hands. At the same time, the movement of the flushing plate 411 will cause the insertion rod 42 to move with it and insert into the liquid pipe 54, entering deeper into the electrorheological fluid. Moreover, the pressing rod 43 will move with the flushing plate 411 and press the push-button switch 524. The push-button switch 524 closes, the circuit is conducted, and the power supply 522 supplies power to the entire circuit. The current forms a loop through the first wire 5221, the sound and light alarm 523, the third wire 5231, the conductive rod 51, the fourth wire 5241, the push-button switch 524, and the second wire 5222. After the conductive rod 51 is energized, an electric field is applied to the electrorheological fluid, and the electrorheological fluid hardens, restricting the movement of the insertion rod 42, and thus restricting the movement of the flushing plate 411, preventing the moving mold 102 from approaching the fixed mold 101 further. At the same time, the sound and light alarm 523 emits an alarm sound and light, reminding the operator to react quickly.

[0047] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modification examples falling within the scope and boundary of the appended claims, or equivalent forms of such scope and boundary.

Claims

1. A die-casting machine with an anti-pinch device, characterized in that: It comprises a die-casting machine body (1), a liquid supply component (2), and a driving component (3); The die-casting machine body (1) is provided with a fixed die (101) and a movable die (102), and the distance between the movable die (102) and the fixed die (101) is adjustable; the liquid supply component (2) is arranged above the fixed die (101) and the movable die (102); and the driving component (3) drives the liquid supply component (2) to move up and down; Both sides of the die-casting machine body (1) are connected to a cleaning assembly (4), the cleaning assembly (4) comprising an elastic flushing member (41), the elastic flushing member (41) being mounted on an end of the cleaning assembly (4) away from the liquid supply assembly (2), and a limit position alarm assembly (5) being mounted on the cleaning assembly (4); The limit alarm component (5) comprises a conductive rod (51) and a trigger alarm component (52); an electrorheological fluid is arranged in the limit alarm component (5); the conductive rod (51) is arranged in the electrorheological fluid; the trigger alarm component (52) is mounted on the limit alarm component (5) and is electrically connected to the conductive rod (51); an insertion rod (42) inserted into the limit alarm component (5) and placed in the electrorheological fluid is mounted on the elastic flushing component (41); and a pressing rod (43) corresponding to the trigger alarm component (52) is mounted on the elastic flushing component (41); The cleaning assembly (4) is connected to a handheld flushing component (6) for cleaning the interior of the fixed mold (101) and the movable mold (102).

2. A die-casting machine with an anti-pinch device according to claim 1, characterized in that: The cleaning assembly (4) further comprises a first liquid supply pipe (44), a cleaning box (45), a liquid guide cylinder (46) and a first control valve (47). Both sides of the liquid supply assembly (2) are connected to the first liquid supply pipe (44). One end of the first liquid supply pipe (44) away from the liquid supply assembly (2) is connected to the cleaning box (45). A liquid guide cylinder (46) connected to the first liquid supply pipe (44) is installed in the cleaning box (45). The elastic flushing member (41) is arranged at one end of the cleaning box (45) away from the first liquid supply pipe (44) and is connected to the liquid guide cylinder (46). The first control valve (47) is installed on the first liquid supply pipe (44).

3. A die-casting machine with an anti-pinch device according to claim 2, characterized in that: The elastic flushing member (41) comprises a flushing disc (411), a liquid guiding tube (412), a liquid guiding piston (413) and a first spring (414); the liquid guiding piston (413) is slidably arranged in the liquid guiding tube (46); one end of the liquid guiding piston (413) is connected to the liquid guiding tube (412); one end of the liquid guiding tube (412) slides through one end of the liquid guiding tube (46) and is connected to the flushing disc (411); a flushing hole is provided on a side of the flushing disc (411) away from the liquid guiding tube (412); the first spring (414) is sleeved on the liquid guiding tube (412) and is located in the liquid guiding tube (46); two ends of the first spring (414) are respectively connected to the inner wall of one end of the liquid guiding tube (46) and one end of the liquid guiding piston (413); a liquid inlet hole (415) communicating with the liquid guiding tube (412) is provided in the liquid guiding piston (413).

4. A die-casting machine with an anti-pinch device according to claim 3, characterized in that: The limit alarm assembly (5) further comprises a limit box (53) and a liquid pipe (54); the limit box (53) is mounted on the cleaning box (45); the liquid pipe (54) is mounted in the limit box (53); the electrorheological fluid and the conductive rod (51) are both arranged in the liquid pipe (54); one end of the insertion rod (42) is connected to the inner side of the flushing tray (411); the other end is slidably inserted into the liquid pipe (54); and the trigger alarm component (52) is mounted on the limit box (53).

5. The die-casting machine with an anti-pinch device according to claim 4, characterized in that: The trigger alarm component (52) comprises an assembly box (521), a power supply (522), an audible and visual alarm (523) and a push switch (524); the assembly box (521) is mounted on a limit box (53); the power supply (522) is arranged transversely in the assembly box (521); the audible and visual alarm (523) is mounted on the assembly box (521); a slide groove is provided on the top of the limit box (53); a second spring (525) is installed on the inner wall of the slide groove; a bearing block (526) slidably matched with the slide groove is installed at one end of the second spring (525); the push switch (524) is mounted on the bearing block (526); the power supply (522) and the audible and visual alarm (523) are connected via a first wire (5221); the power supply (522) is arranged transversely in the assembly box (521); the audible and visual alarm (523) is mounted on the assembly box (521); a second spring (525) is installed on the inner wall of the slide groove; a bearing block (526) slidably matched with the slide groove is installed at one end of the second spring (525); the push switch (524) is mounted on the bearing block (526); the power supply (522) and the audible and visual alarm (523) are connected via a first wire (5221); the power supply (52 2) is connected to the push-type switch (524) via a second wire (5222), one end of the conductive rod (51) is connected to the sound and light alarm (523) via a third wire (5231), and the other end of the conductive rod (51) is connected to the push-type switch (524) via a fourth wire (5241); the conductive rod (51), the power source (522), the sound and light alarm (523), the push-type switch (524), the first wire (5221), the second wire (5222), the third wire (5231) and the fourth wire (5241) are connected in series to form a closed loop; the push rod (43) is installed on the inner side of the flushing tray (411) and is located above the insertion rod (42), and the end of the push rod (43) is arranged toward the push-type switch (524).

6. A die-casting machine with an anti-pinch device according to claim 5, characterized in that: The handheld flushing member (6) comprises a second liquid supply pipe (61), a second control valve (62), a hose (63), a flushing head (64) and a holder (65); the second liquid supply pipe (61) is connected to and communicates with the first liquid supply pipe (44); the second control valve (62) is mounted on the second liquid supply pipe (61); one end of the second liquid supply pipe (61) away from the first liquid supply pipe (44) is connected to the hose (63); one end of the hose (63) away from the second liquid supply pipe (61) is connected to the flushing head (64); a holder (65) is mounted on the top of the flushing tray (411); a slot is formed on the holder (65); and the flushing head (64) is mounted in the slot.

7. A die-casting machine with an anti-pinch device according to claim 6, characterized in that: The liquid supply assembly (2) comprises a loading frame (21) and a liquid supply cylinder (22); the loading frame (21) is arranged above the fixed mold (101) and the movable mold (102) and is driven by a driving member (3) to move up and down; the liquid supply cylinder (22) is installed in the loading frame (21); and the two first liquid supply tubes (44) are respectively connected to two sides of the liquid supply cylinder (22) and communicate with the interior thereof.

8. The die-casting machine with a finger-pinching prevention device according to claim 7, characterized in that: The liquid supply cylinder (22) is connected to a liquid guide member (7), and the liquid guide member (7) is used to guide the water source into the liquid supply cylinder (22).

9. The die-casting machine with a finger-pinching prevention device according to claim 8, characterized in that: The liquid guiding member (7) comprises a water pump (71) and a water pipe (72); the top end of the liquid supply cylinder (22) is connected to the water pipe (72); and one end of the water pipe (72) away from the liquid supply cylinder (22) is connected to the water pump (71).

10. The die-casting machine with a finger-pinching prevention device according to claim 9, characterized in that: The driving member (3) comprises a cylinder (31) and a mounting frame (32); the cylinder (31) is mounted on the die-casting machine body (1) via the mounting frame (32); the cylinder (31) is located above the fixed die (101) and the movable die (102); the loading frame (21) is connected to the driving end of the cylinder (31) and is driven by the cylinder (31) to move up and down.

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