Die-casting die for manufacturing elevator pedal

Abstract

The die-casting die for manufacturing the elevator pedal relates to the technical field of elevator pedal production and comprises a base, a die assembly A and a die assembly B. An injection assembly is arranged at the right end of the top of the base, an injection pipe is arranged at the middle end of the top of the base, and a communicating pipe is connected to the outer side of the bottom of the injection pipe. And a pumping and blowing integrated machine is arranged on the outer side of the bottom of the communicating pipe. A first hydraulic cylinder works, a push-in plug can push molten metal to enter a forming cavity between a mold base A and a mold base B, and the forming cavity, an injection pipe and the interior of a through groove are pumped to be in a negative pressure state in advance, so that the molten metal can easily flow in the injection pipe and the through groove due to the pressure difference; and meanwhile, in the process of pushing the molten metal by the push-in plug, the condition that the resistance is increased due to air existing in the injection pipe, the through groove and the forming cavity is avoided, but the push-in plug is easier to push due to the pressure difference between the inner end and the outer end, so that the condition that the molten metal cannot completely enter the forming cavity due to insufficient thrust can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of elevator pedal production, in particular to a die-casting mold for manufacturing elevator pedals. Background Art

[0002] Elevator pedal refers to the pedal surface of an escalator, or more specifically, the part where passengers stand. The base material of an elevator pedal is usually a strong and durable metal material, such as steel plate or aluminum alloy plate, to ensure the load-bearing capacity and structural strength. Good anti-slip performance is the key to ensuring passenger safety, so the surface of the elevator pedal is usually provided with a whole row of concave surfaces to improve friction. Because the elevator pedal is an irregular rectangle, the elevator pedal is often manufactured using a die-casting mold.

[0003] During the use of the die-casting mold for elevator pedals commonly found on the market, the internal molding cavity is usually a sealed structure. When the hydraulic device injects molten metal into the molding cavity, the internal air is easily squeezed, resulting in increased pushing resistance. This makes it very easy for the molten metal to be unable to fully enter the molding cavity due to insufficient thrust, thereby affecting the molding quality of the elevator pedal.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a die-casting mold for manufacturing elevator pedals is proposed. Summary of the invention

[0005] The object of the present invention is to provide a die-casting mold for manufacturing elevator pedals to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a die-casting mold for manufacturing elevator pedals, comprising a base, an A mold assembly and a B mold assembly, an injection assembly is arranged at the right end of the top of the base, and an injection pipe is arranged at the middle end of the top of the base, a connecting pipe is connected to the outer side of the bottom of the injection pipe, and an exhaust-blowing integrated machine is arranged at the outer side of the bottom of the connecting pipe, a molten inlet pipe is arranged at the outer side of the top of the injection pipe, and a molten box is arranged at the top of the molten inlet pipe, and the left end of the injection pipe is arranged with the A mold assembly, the A mold assembly comprises a fixed seat, an A mold seat, an electric push rod, a closed block, a through groove, an injection port and a gas delivery port, the outer end of the fixed seat is provided with the A mold seat, and electric push rods are arranged on both sides of the inside of the A mold seat, and the output end of the electric push rod is provided with a closed block, the fixed seat and the A mold seat are provided with a through groove in the middle end, and the end of the through groove is provided with an injection port, the fixed seat is provided with a gas delivery port, a gas delivery pipe is connected between the exhaust-blowing integrated machine and the fixed seat, and the B mold assembly is arranged at the left end of the top of the base.

[0007] Furthermore, the injection assembly includes a first fixed plate, a first hydraulic cylinder, a pushing seat, an injection rod, a vent A port, a push plug and a vent B port. The first hydraulic cylinder is provided at the outer end of the first fixed plate, and the pushing seat is provided at the output end of the first hydraulic cylinder. The outer end of the push seat is provided with an injection rod, and the inner side of the injection rod is provided with a vent A port. The outer end of the injection rod is connected to a push plug, and the inner side of the push plug is provided with a vent B port.

[0008] Furthermore, the injection rod and the push plug are integrated, and the vent A port is connected to the vent B port.

[0009] Furthermore, the outer contour of the push plug matches the inner contour size of the injection tube, and the inner contour size of the injection tube matches the inner contour size of the through groove.

[0010] Furthermore, the injection pipe is connected to the through groove, and the connecting pipe and the melting inlet pipe are connected to the injection pipe.

[0011] Furthermore, the through groove is communicated with the injection port, and the end of the through groove is in a trumpet-shaped opening.

[0012] Furthermore, the B mold assembly includes a second fixed plate, a second hydraulic cylinder, a B mold base, a one-way ventilation groove, a water groove, a water tank, heat dissipation fins and an exhaust seat. The outer end of the second fixed plate is provided with a second hydraulic cylinder, and the output end of the second hydraulic cylinder is provided with the B mold base. A one-way ventilation groove is provided on the inner side of the bottom of the B mold base, and a water groove is provided inside the B mold base. A water tank is provided at the rear outer end of the B mold base, and heat dissipation fins are arranged at the rear end of the water tank. The top of the B mold base is provided with an exhaust seat.

[0013] Furthermore, the inner contour of the B mold base matches the outer contour of the A mold base, and when the B mold base is docked with the A mold base, the one-way ventilation groove is docked with the gas delivery port.

[0014] Furthermore, the gas delivery pipe is connected to the gas delivery port, and the gas delivery port is connected to the water delivery slot via a one-way ventilation slot.

[0015] Furthermore, the water trough is connected to the water tank, and the water trough is connected to the exhaust seat.

[0016] The present invention provides a die-casting mold for manufacturing elevator pedals, which has the following beneficial effects: 1. The inner contour of the B mold base of the present invention matches the outer contour size of the A mold base, which makes the molding cavity between the A mold base and the B mold base in a sealed state. At this time, the first hydraulic cylinder is not working, and the push-in plug is located at the rightmost end of the injection pipe, which makes the suction and blowing machine connected with the molding cavity through the connecting pipe, the injection pipe and the injection port. The suction and blowing machine works to exhaust air, so that the air in the molding cavity and the debris accidentally entering the interior can be extracted. After the molding cavity is evacuated to the lowest pressure, the suction and blowing machine stops working, and at the same time, the first hydraulic cylinder works to make the push seat drive the injection rod, so that the push-in plug can move through the position of the connecting pipe and be at the right end of the molten inlet pipe. At this time, the molten box works and can inject the molten metal inside into the injection pipe and the through groove through the molten inlet pipe. After the molten metal is injected, the first hydraulic cylinder works again, which makes the push-in plug push the molten metal into the molding cavity between the A mold base and the B mold base, thereby realizing the die casting of the elevator pedal, because the molding cavity and the injection pipe and the through groove are evacuated to a negative pressure state in advance. , which makes the molten metal flow easily inside the injection pipe and the through groove due to the pressure difference. At the same time, in the process of pushing the molten metal, the push plug will not increase the pushing resistance due to the presence of air in the injection pipe, the through groove and the molding cavity. On the contrary, it will be easier to push due to the pressure difference between the inside and the outside. This can reduce the situation where the molten metal cannot fully enter the molding cavity due to insufficient thrust. In addition, because the end of the through groove is in the shape of a trumpet opening, after the push plug is pushed to the end of the through groove, the vent B port at its outer end will be exposed. At this time, the exhaust and blowing machine is changed to the blowing mode, which allows the gas to enter the injection pipe through the connecting pipe. At this time, the push plug blocks the inside of the injection pipe, which allows the gas to enter from the inside of the vent A port and blow out from the vent B port. Through continuous blowing, the molten metal can be pressurized. Under the action of high pressure, the molten metal can be forced to fully enter the molding cavity. Through the above operations, the situation where the molten metal does not fully enter the molding cavity, resulting in shape and size errors in the formed elevator pedal, can be greatly reduced.

[0017] 2. In the process of cooling when the molten metal enters the forming cavity of the present invention, the water in the water trough in the B mold seat can assist in cooling the molten metal. In this process, through the operation of the exhaust and blowing machine, high-speed gas can enter the water trough through the gas pipe, the gas port and the one-way ventilation groove, so that the water in the water trough will flow under the influence of the gas injection, and in the process of the water flow, it can be replaced with the water in the water tank, and the water in the water tank can dissipate heat through the cooling fins. In addition, the gas input into the water body can be discharged through the exhaust seat, and when the gas is discharged from the exhaust seat, a large amount of heat can also be discharged. Through the above operations, the cooling time of the metal can be greatly reduced. In addition, the exhaust and blowing machine can also achieve the effect of metal cooling in the process of blowing air into the through groove. Through the combined use of the above cooling effects, the cooling speed of the elevator pedal can be further improved.

[0018] 3. After the elevator pedal of the present invention is cooled and formed, the exhaust and blowing integrated machine performs exhaust work, which enables the suction force to enter the end of the through groove through the connecting pipe, the ventilation port A and the ventilation port B. At this time, due to the cooling and forming of the elevator pedal, the suction force can be attached to the surface of the elevator pedal through the injection port. In addition, the electric push rod can drive the closed block to move and retract, which enables the groove sealed by the closed block to open, so that the suction force can be transmitted to the groove opened by the closed block. Through this design, the A mold base can adsorb the formed elevator pedal over a large area. Through this design, the equipment does not need to use an ejection device to eject the formed elevator pedal. It only needs to use the exhaust step used in the previous step to realize the demolding of the elevator pedal, which can reduce the production cost of the equipment. The demolding of the elevator pedal by adsorption can effectively avoid the risk of excessive ejection force and the elevator pedal slipping out of the mold when the elevator pedal is demolded by ejection, which can improve the demolding stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A is a schematic diagram of the overall three-dimensional structure of a die-casting mold for manufacturing elevator pedals of the present invention; Figure 2 FIG. B is a schematic diagram of the overall three-dimensional structure of a die-casting mold for manufacturing elevator pedals of the present invention; Figure 3 This is a schematic diagram of the structure of a die base A of a die-casting die for manufacturing elevator pedals according to the present invention; Figure 4 This is a schematic structural diagram of a B-mold component of a die-casting mold for manufacturing elevator pedals according to the present invention; Figure 5 This is a schematic diagram of the overall cross-sectional structure of a die-casting mold for manufacturing elevator pedals according to the present invention; Figure 6 This is a schematic diagram of the docking structure of die base A and die base B of a die-casting die for manufacturing elevator pedals of the present invention; Figure 7 The present invention is a schematic diagram of the injection assembly structure of a die-casting mold for manufacturing elevator pedals.

[0020] In the figure: 1. base; 2. injection assembly; 201. first fixed plate; 202. first hydraulic cylinder; 203. push seat; 204. injection rod; 205. vent A port; 206. push plug; 207. vent B port; 3. injection pipe; 4. connecting pipe; 5. exhaust and blowing machine; 6. melting inlet pipe; 7. melting box; 8. A mold assembly; 801. fixed seat; 802. A mold base; 803. electric push rod; 804. closed block; 805. through groove; 806. injection port; 807. air supply port; 9. air supply pipe; 10. B mold assembly; 1001. second fixed plate; 1002. second hydraulic cylinder; 1003. B mold base; 1004. one-way ventilation groove; 1005. water groove; 1006. water tank; 1007. heat dissipation fin; 1008. exhaust seat. DETAILED DESCRIPTION

[0021] See also Figures 1 to 7 The present invention provides a technical solution: a die-casting mold for manufacturing elevator pedals, including a base 1, an A mold assembly 8 and a B mold assembly 10, an injection assembly 2 is arranged at the top right end of the base 1, and an injection pipe 3 is arranged at the top middle end of the base 1, a connecting pipe 4 is connected to the bottom outer side of the injection pipe 3, and a suction and blowing integrated machine 5 is arranged at the bottom outer side of the connecting pipe 4, a molten inlet pipe 6 is arranged at the top outer side of the injection pipe 3, and a molten box 7 is arranged at the top of the molten inlet pipe 6, an A mold assembly 8 is arranged at the left end of the injection pipe 3, and the A mold assembly 8 includes a fixed seat 801, an A mold seat 802, an electric push rod 803, A sealed block 804, a through groove 805, an injection port 806 and a gas outlet 807, an A mold base 802 is arranged at the outer end of the fixed seat 801, and electric push rods 803 are arranged on both sides of the inside of the A mold base 802, and a sealed block 804 is arranged at the output end of the electric push rod 803, a through groove 805 is opened at the middle end of the inner part of the fixed seat 801 and the A mold base 802, and an injection port 806 is opened at the end of the through groove 805, a gas outlet 807 is opened inside the fixed seat 801, an air supply pipe 9 is connected between the exhaust and blowing machine 5 and the fixed seat 801, and a B mold assembly 10 is arranged at the top left end of the base 1.

[0022] See also Figures 1 to 7The injection assembly 2 includes a first fixed plate 201, a first hydraulic cylinder 202, a push seat 203, an injection rod 204, a vent A port 205, a push plug 206 and a vent B port 207. The first fixed plate 201 is provided with the first hydraulic cylinder 202 at its outer end, and the push seat 203 is provided at its output end. The outer end of the push seat 203 is provided with an injection rod 204, and the inner side of the injection rod 204 is provided with a vent A port 205. The outer end of the injection rod 204 is connected with a push plug 206, and the inner side of the push plug 206 is provided with a The vent B port 207, the injection rod 204 and the push plug 206 are integrated, the vent A port 205 is connected to the vent B port 207, the outer contour of the push plug 206 matches the inner contour size of the injection pipe 3, and the inner contour size of the injection pipe 3 matches the inner contour size of the through groove 805, the injection pipe 3 is connected to the through groove 805, and the connecting pipe 4 and the molten inlet pipe 6 are connected to the injection pipe 3, the through groove 805 is connected to the injection port 806, and the end of the through groove 805 is in the shape of a trumpet opening, and the B mold assembly 10 includes a second fixed plate 1001, a second liquid The second fixed plate 1001 is provided with a second hydraulic cylinder 1002 at the outer end thereof, and a B mold base 1003 is provided at the output end thereof. A one-way ventilation groove 1004 is provided at the inner side of the bottom of the B mold base 1003, and a water groove 1005 is provided inside the B mold base 1003. A water tank 1006 is provided at the outer end of the rear portion of the B mold base 1003, and the water tank 1006 is provided at the outer end thereof. The rear end of the mold base 6 is provided with a heat dissipation fin 1007, the top of the mold base B 1003 is provided with an exhaust seat 1008, the inner contour of the mold base B 1003 matches the outer contour of the mold base A 802, and when the mold base B 1003 is docked with the mold base A 802, the one-way ventilation groove 1004 is docked with the gas delivery port 807, the gas delivery pipe 9 is connected with the gas delivery port 807, and the gas delivery port 807 is connected with the water groove 1005 through the one-way ventilation groove 1004, the water groove 1005 is connected with the water tank 1006, and the water groove 1005 is connected with the exhaust seat 1008; The specific operation is as follows: the second hydraulic cylinder 1002 works to drive the B mold base 1003 to move in the direction of the A mold base 802, so that the B mold base 1003 can dock with the A mold base 802. Because the inner contour of the B mold base 1003 matches the outer contour size of the A mold base 802, the molding cavity between the A mold base 802 and the B mold base 1003 is in a sealed state. At this time, the first hydraulic cylinder 202 is not working, and the push plug 206 is located at the rightmost end of the injection pipe 3, which makes the exhaust and blowing machine 5 connected with the molding cavity through the connecting pipe 4, the injection pipe 3 and the injection port 806. The exhaust of the exhaust and blowing machine 5 can be operated to exhaust air in the molding cavity and the debris accidentally entering the molding cavity. After the molding cavity is evacuated to the lowest pressure, the exhaust and blowing machine 5 stops working. At the same time, the first hydraulic cylinder 202 works to drive the push seat 203 to drive the injection rod 204, so that the push plug 206 can move through the position of the connecting pipe 4 and be at the right end of the molten inlet pipe 6 ( Figure 5), at this time, the melting box 7 works and can inject the molten metal inside into the injection pipe 3 and the through groove 805 through the melting inlet pipe 6. After the molten metal is injected, the first hydraulic cylinder 202 works again, which enables the push plug 206 to push the molten metal into the molding cavity between the A mold base 802 and the B mold base 1003, thereby realizing the die casting of the elevator pedal. Because the molding cavity and the injection pipe 3 and the through groove 805 are evacuated to a negative pressure state in advance, the molten metal can easily flow inside the injection pipe 3 and the through groove 805 due to the pressure difference. At the same time, in the process of pushing the molten metal, the push plug 206 will not increase the pushing resistance due to the presence of air in the injection pipe 3, the through groove 805 and the molding cavity. Instead, it will be easier to push due to the pressure difference between the inside and the outside. 805, after the push-in plug 206 is pushed into the end of the through slot 805, the vent B port 207 at its outer end will be exposed. At this time, the suction and blowing integrated machine 5 is changed to the blowing mode, which allows the gas to enter the injection pipe 3 through the connecting pipe 4. At this time, the push-in plug 206 blocks the inside of the injection pipe 3, which allows the gas to enter from the inside of the vent A port 205 and be blown out from the vent B port 207. Through continuous blowing, the molten metal can be pressurized. Under the action of high pressure, the molten metal can be forced to completely enter the molding cavity. Through the above operations, the problem of the elevator pedal being formed due to the molten metal not completely entering the molding cavity can be greatly reduced. In the case of shape and size errors, after the B mold base 1003 and the A mold base 802 are connected, the one-way ventilation groove 1004 will be connected with the gas supply port 807. During the cooling process of the molten metal entering the molding cavity, the water in the water trough 1005 in the B mold base 1003 can help the molten metal cool down. In this process, through the operation of the exhaust and blowing machine 5, high-speed gas can enter the water trough 1005 through the gas supply pipe 9, the gas supply port 807 and the one-way ventilation groove 1004, which makes the water in the water trough 1005 flow under the influence of gas injection. In the process of water flow, it can be replaced with the water in the water tank 1006, and the water in the water tank 1006 can dissipate heat through the heat dissipation fins 1007. In addition, the input The gas in the water body can be discharged through the exhaust seat 1008, and when the gas is discharged from the exhaust seat 1008, a large amount of heat can also be discharged. Through the above operation, the metal cooling time can be greatly reduced. In addition, the exhaust and blowing machine 5 can also achieve the metal cooling effect in the process of blowing air into the through groove 805. Through the combined use of the above cooling effects, the cooling speed of the elevator pedal can be further improved. After the elevator pedal is cooled and formed, the exhaust and blowing machine 5 performs exhaust work, which allows the suction force to enter the end of the through groove 805 through the connecting pipe 4, the ventilation port A 205, and the ventilation port B 207. At this time, because the elevator pedal is cooled and formed, the suction force can adhere to the surface of the elevator pedal through the injection port 806. In addition, it works through the electric push rod 803.It can drive the sealed stopper 804 to move and retract, so that the groove sealed by the sealed stopper 804 can be opened, so that the suction force can be transmitted to the groove opened by the sealed stopper 804. Through this design, the A mold base 802 can adsorb the formed elevator pedal over a large area. Through this design, the equipment does not need to use an ejection device to eject the formed elevator pedal. Only the vacuum step used in the previous step can be used to demold the elevator pedal, which can reduce the production cost of the equipment. The demolding of the elevator pedal by adsorption can effectively avoid the risk of excessive ejection force and the elevator pedal slipping out of the mold when the elevator pedal is demolded by ejection, which can improve the demolding stability of the equipment.

[0023] In summary, when the die-casting mold for manufacturing elevator pedals is used, the second hydraulic cylinder 1002 is first operated to drive the B mold base 1003 to move in the direction of the A mold base 802, so that the B mold base 1003 can be docked with the A mold base 802. Because the inner contour of the B mold base 1003 matches the outer contour size of the A mold base 802, the molding cavity between the A mold base 802 and the B mold base 1003 is in a sealed state. At this time, the first hydraulic cylinder 202 is not working, and the push plug 206 is located at the rightmost end of the injection pipe 3, which makes the exhaust-blowing machine 5 connected to the molding cavity through the connecting pipe 4, the injection pipe 3 and the injection port 806. The exhaust-blowing machine 5 is operated to exhaust air, so that the air in the molding cavity and the debris accidentally entering the interior thereof can be extracted; Then, after the molding cavity is evacuated to the lowest pressure, the suction and blowing integrated machine 5 stops working, and at the same time, the first hydraulic cylinder 202 works to make the push seat 203 drive the injection rod 204, so that the push plug 206 can move through the position of the connecting pipe 4 and be at the right end of the molten inlet pipe 6. At this time, the molten box 7 works to inject the internal molten metal into the injection pipe 3 and the through groove 805 through the molten inlet pipe 6. After the molten metal is injected, the first hydraulic cylinder 202 works again, so that the push plug 206 can push the molten metal into the A mold base 802 and the B mold base 100. 3, thereby realizing the die casting of the elevator pedal, because the molding cavity and the inside of the injection pipe 3 and the through groove 805 are evacuated into a negative pressure state in advance, the molten metal can easily flow inside the injection pipe 3 and the through groove 805 due to the pressure difference, and at the same time, when the push plug 206 pushes the molten metal, there will be no increase in the pushing resistance due to the air inside the injection pipe 3, the through groove 805 and the molding cavity, but it will be easier to push due to the pressure difference between the inside and the outside, which can reduce the situation that the molten metal cannot completely enter the molding cavity due to insufficient thrust; Then, because the end of the through slot 805 is in the shape of a trumpet opening, after the push-in plug 206 is pushed into the end of the through slot 805, the vent B port 207 at its outer end will be exposed. At this time, the exhaust-blowing integrated machine 5 changes to the blowing mode, which allows the gas to enter the injection pipe 3 through the connecting pipe 4. At this time, the push-in plug 206 blocks the inside of the injection pipe 3, which allows the gas to enter from the vent A port 205 and blow out from the vent B port 207. Through continuous blowing, the molten metal can be pressurized. Under the action of high pressure, the molten metal can be pushed to completely enter the molding cavity. Through the above operation, the situation that the molten metal does not completely enter the molding cavity and causes the molded elevator pedal to have shape and size errors can be greatly reduced; After the B mold base 1003 and the A mold base 802 are connected, the one-way ventilation groove 1004 will be connected with the gas delivery port 807. During the cooling process of the molten metal entering the molding cavity, the water in the water trough 1005 in the B mold base 1003 can help the molten metal cool down. In this process, through the operation of the exhaust-blowing integrated machine 5, high-speed gas can enter the water trough 1005 through the gas delivery pipe 9, the gas delivery port 807 and the one-way ventilation groove 1004, which makes the water in the water trough 1005 flow under the influence of the gas injection, and the water flow During the process, the water in the water tank 1006 can be replaced, and the water in the water tank 1006 can dissipate heat through the heat dissipation fins 1007. In addition, the gas input into the water can be discharged through the exhaust seat 1008, and when the gas is discharged from the exhaust seat 1008, a large amount of heat can also be discharged. Through the above operation, the metal cooling time can be greatly reduced. In addition, the exhaust-blowing machine 5 can also achieve the effect of metal cooling during the process of blowing air into the through slot 805. Through the above cooling effects, the cooling speed of the elevator pedal can be further improved. Finally, after the elevator pedal is cooled and formed, the exhaust-blowing integrated machine 5 performs the exhaust work, which enables the suction force to enter the end of the through groove 805 through the connecting pipe 4, the ventilation port A 205, and the ventilation port B 207. At this time, due to the cooling and forming of the elevator pedal, the suction force can be attached to the surface of the elevator pedal through the injection port 806. In addition, the electric push rod 803 works to drive the closed block 804 to move and retract, so that the groove sealed by the closed block 804 can be opened, so that the suction force can be transmitted to the groove opened by the closed block 804. The design at the groove enables the A mold base 802 to adsorb the formed elevator pedal over a large area. The design enables the equipment to eject the formed elevator pedal without using an ejection device. The elevator pedal can be demolded by using the vacuum step used in the previous step, which can reduce the production cost of the equipment. The demolding of the elevator pedal by adsorption can effectively avoid the risk of excessive ejection force and the elevator pedal slipping out of the mold when the elevator pedal is demolded by ejection, which can improve the demolding stability of the equipment.

[0024] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A die-casting mold for manufacturing elevator pedals, characterized in that: The invention comprises a base (1), an A-mold assembly (8) and a B-mold assembly (10), wherein an injection assembly (2) is arranged at the right end of the top of the base (1), and an injection pipe (3) is arranged at the middle end of the top of the base (1), the bottom outer side of the injection pipe (3) is connected to a connecting pipe (4), and an exhaust-blowing integrated machine (5) is arranged at the bottom outer side of the connecting pipe (4), a melting inlet pipe (6) is arranged at the top outer side of the injection pipe (3), and a melting box (7) is arranged at the top of the melting inlet pipe (6), and the A-mold assembly (8) is arranged at the left end of the injection pipe (3), and the A-mold assembly (8) comprises a fixing seat (801), an A-mold seat (802), an electric push rod (803), a sealing block (804), a through groove (805), and a sealing plate (806). ), an injection port (806) and an air delivery port (807); an A mold base (802) is arranged at the outer end of the fixed seat (801), and electric push rods (803) are arranged on both sides of the interior of the A mold base (802); a sealed stopper (804) is arranged at the output end of the electric push rod (803); a through groove (805) is provided at the middle end of the interior of the fixed seat (801) and the A mold base (802), and an injection port (806) is provided at the end of the through groove (805); an air delivery port (807) is provided inside the fixed seat (801); an air delivery pipe (9) is connected between the suction and blowing machine (5) and the fixed seat (801); and a B mold assembly (10) is provided at the top left end of the base (1).

2. A die-casting mold for manufacturing elevator pedals according to claim 1, characterized in that: The injection assembly (2) comprises a first fixed plate (201), a first hydraulic cylinder (202), a pushing seat (203), an injection rod (204), a vent A port (205), a push plug (206) and a vent B port (207); the first hydraulic cylinder (202) is arranged at the outer end of the first fixed plate (201), and the pushing seat (203) is arranged at the output end of the first hydraulic cylinder (202); the injection rod (204) is arranged at the outer end of the pushing seat (203) and connected thereto; the vent A port (205) is provided on the inner side of the injection rod (204); the injection rod (204) is connected at the outer end thereof with a push plug (206), and the vent B port (207) is provided on the inner side of the push plug (206).

3. A die-casting mold for manufacturing elevator pedals according to claim 2, characterized in that: The injection rod (204) and the push plug (206) are integrated, and the vent A port (205) and the vent B port (207) are connected.

4. A die-casting mold for manufacturing elevator pedals according to claim 2, characterized in that: The outer contour of the push-in plug (206) matches the inner contour size of the injection tube (3), and the inner contour size of the injection tube (3) matches the inner contour size of the through groove (805).

5. A die-casting mold for manufacturing elevator pedals according to claim 1, characterized in that: The injection pipe (3) is connected to the through groove (805), and the connecting pipe (4) and the melting inlet pipe (6) are connected to the injection pipe (3).

6. A die-casting mold for manufacturing elevator pedals according to claim 1, characterized in that: The through groove (805) is connected to the injection port (806), and the end of the through groove (805) is in the shape of a trumpet opening.

7. A die-casting mold for manufacturing elevator pedals according to claim 1, characterized in that: The B mold assembly (10) comprises a second fixed plate (1001), a second hydraulic cylinder (1002), a B mold base (1003), a one-way ventilation groove (1004), a water groove (1005), a water tank (1006), a heat dissipation fin (1007) and an exhaust seat (1008); the second fixed plate (1001) is provided with a second hydraulic cylinder (1002) at the outer end thereof, and the B mold base (1003) is provided with an output end thereof; the bottom inner side of the B mold base (1003) is provided with a one-way ventilation groove (1004), and the inside of the B mold base (1003) is provided with a water groove (1005); the rear outer end of the B mold base (1003) is provided with a water tank (1006), and the rear end of the water tank (1006) is provided with a heat dissipation fin (1007); and the top end of the B mold base (1003) is provided with an exhaust seat (1008).

8. A die-casting mold for manufacturing elevator pedals according to claim 7, characterized in that: The inner contour of the B mold base (1003) matches the outer contour of the A mold base (802), and when the B mold base (1003) and the A mold base (802) are butted together, the one-way ventilation groove (1004) and the gas delivery port (807) are butted together.

9. A die-casting mold for manufacturing elevator pedals according to claim 7, characterized in that: The gas delivery pipe (9) is connected to the gas delivery port (807), and the gas delivery port (807) is connected to the water flow groove (1005) via the one-way ventilation groove (1004).

10. A die-casting mold for manufacturing elevator pedals according to claim 7, characterized in that: The water trough (1005) is connected to the water tank (1006), and the water trough (1005) is connected to the exhaust seat (1008).

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