Die-casting forming device for automobile brake pad machining

Abstract

The invention belongs to the technical field of die-casting forming, and particularly relates to a die-casting forming device for automobile brake pad machining, which comprises a bottom plate, a left die and a right die are arranged on the surface of the bottom plate, a liquid drainage assembly is arranged above the bottom plate, the liquid drainage assembly comprises a U-shaped frame fixed on the surface of the right die, a fixed plate is fixed in the U-shaped frame, and a T-shaped rod is slidably connected in the fixed plate. A floating block is fixed to the bottom end of the T-shaped rod, a long plate is slidably connected into the U-shaped frame, a second clamping plate is fixed to the surface of the long plate, a third spring is fixed between the second clamping plate and the U-shaped frame, a connecting rod is slidably connected into the left mold, a top plate is fixed to the top of the connecting rod, and a fourth spring is fixed between the top plate and the left mold. And when the added liquid material is more than the standard range, the floating block moves upwards along with the increase of the pressure of the cavity, and the redundant liquid material can flow back into the material box through the air hole I, the air hole II, the longitudinal pipe and the one-way valve, so that the forming effect of the automobile brake pad within a certain error range is ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of die casting forming, and particularly relates to a die casting forming device for automobile brake pad processing. BACKGROUND

[0002] As a key component of the automobile braking system, the quality of the automobile brake pad is directly related to the safety of automobile driving. With the continuous development of the automobile industry, the performance and quality of the automobile brake pad are increasingly improved. As a high-efficiency and accurate forming process, die casting forming has been widely applied in the field of automobile brake pad processing. The existing die casting forming device has limited discharge modes for the excess liquid and gas in the cavity. In most cases, only simple exhaust holes and overflow grooves are used, which is difficult to completely discharge the gas and excess liquid in the cavity, and this is easy to form pores and shrinkage in the brake pad, thereby reducing the strength and service life of the brake pad.

[0003] Therefore, the die casting forming device for automobile brake pad processing is designed to solve the above problems. SUMMARY

[0004] To solve the problems in the background art, the application provides a die casting forming device for automobile brake pad processing, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the application provides the following technical scheme: a die casting forming device for automobile brake pad processing, comprising a bottom plate, a left mold and a right mold arranged on the surface of the bottom plate, a liquid discharge assembly arranged above the bottom plate, the liquid discharge assembly comprising a U-shaped frame fixed on the surface of the right mold, a fixed plate fixed in the U-shaped frame, a T-shaped rod slidingly connected in the fixed plate, a floating block fixed at the bottom end of the T-shaped rod, a long plate slidingly connected in the U-shaped frame, a clamping plate two fixed on the surface of the long plate, a spring three fixed between the clamping plate two and the U-shaped frame, a connecting rod slidingly connected in the left mold, a top plate fixed at the top of the connecting rod, a spring four fixed between the top plate and the left mold, and a connecting shaft fixed at the bottom end of the connecting rod.

[0006] As a preferred die casting forming device for automobile brake pad processing, the left mold is provided with a liquid injection assembly, the liquid injection assembly comprises a material tank fixed on one side of the left mold, an injection port is formed in the upper surface of the material tank, a piston one is sealingly and slidingly connected in the material tank, a plug rod is fixed on one side of the piston one, a square plate three is fixed on the surface of the bottom plate, the piston one is fixedly connected with the square plate three through a pull rod, and two triangular plates are fixed on one side of the piston one.

[0007] Preferably, the automobile brake pad processing die casting forming device of the present application is characterized in that the surface of the material box is fixed with a clamping plate one, a trapezoidal block is arranged in the clamping plate one, the trapezoidal block is inserted into a trapezoidal groove arranged on the upper surface of the material box, an arc plate is fixed to the bottom end of the trapezoidal block, and a spring two is fixed between the trapezoidal block and the clamping plate one.

[0008] Preferably, the automobile brake pad processing die casting forming device of the present application is characterized in that a flow groove is arranged in the left mold, a through groove is arranged on one side of the material box, and the flow groove is close to the bottom surface of the material box.

[0009] Preferably, the automobile brake pad processing die casting forming device of the present application is characterized in that a longitudinal pipe is fixed in a round hole arranged on the surface of the material box, a one-way valve is installed in the longitudinal pipe, a gas hole two is arranged in the left mold, the longitudinal pipe is communicated with the gas hole two through a connecting pipe, a square groove is arranged on the upper surface of the right mold, a gas hole one is arranged on one side of the right mold, and the gas hole one and the gas hole two are in position correspondence.

[0010] Preferably, the automobile brake pad processing die casting forming device of the present application is characterized in that a displacement groove and an inclined groove are arranged on the surface of the insertion rod, and an inclined surface is arranged on the bottom end of the connecting rod.

[0011] Preferably, the automobile brake pad processing die casting forming device of the present application is characterized in that a forming assembly is arranged on the surface of the right mold, the forming assembly comprises a pressing plate one sealingly and slidably connected in the right mold, a plurality of expansion grooves arranged in the pressing plate one are each sealingly and slidably inserted with an expansion plate, the expansion plate is fixed with a pressing plate two on one side, a hydraulic push rod two is installed in the right mold, the end of the telescopic rod of the hydraulic push rod two is fixedly connected with the pressing plate one, and a spring one is fixed between the pressing plate one and the pressing plate two.

[0012] Preferably, the automobile brake pad processing die casting forming device of the present application is characterized in that a square plate two is fixed on the surface of the bottom plate, four optical shafts are slidably inserted in the square plate two, the optical shafts are fixed between the right mold and the square plate one, a hydraulic push rod one is installed in the square plate one, and the end of the telescopic rod of the hydraulic push rod one is fixedly connected with the square plate two.

[0013] Preferably, the automobile brake pad processing die casting forming device of the present application is characterized in that side plates are fixedly connected on both sides of the left mold, and the side plates are slidably inserted in a sliding groove arranged in the square plate three.

[0014] Preferably, the surface of the third square plate is provided with an auxiliary assembly, the auxiliary assembly comprises a vertical box fixed on the surface of the third square plate, a heavy block is sealingly and slidably connected in the vertical box, a threaded hole is formed in the heavy block, a threaded plug is screwed in the threaded hole, a horizontal box is fixedly connected in a rectangular groove formed in the surface of the third square plate, the vertical box is communicated with the horizontal box through an elbow pipe, a second piston is inserted in the horizontal box, two horizontal rods are fixed between the second piston and the left die, a baffle is fixedly connected on the upper surface of the bottom plate, and the baffle is below the right die.

[0015] Compared with the prior art, the present application has the advantages of scientific and reasonable structure, safe and convenient use, and the like. 1. The forming assembly is provided, after the hydraulic push rod two is started, the telescopic rod of the hydraulic push rod two is extended to push the sealing and sliding of the pressing plate one in the right die, the internal pressure of the mold cavity is continuously increased, with the increase of the pressure, the force applied by the liquid material on the expansion plate promotes the sliding of the expansion plate in the expansion groove, the spring one is continuously stretched, which makes the extrusion force on the raw material in the mold cavity continuously increase, until the pressing plate one is attached to the side edge of the left die, the spring one is stretched for a long distance, which means that the liquid material in the expansion groove is subjected to a larger force, ensuring that the automobile brake pad is more compact under the action of the pressure, and the compactness of the produced brake pad is ensured. When the left die and the right die have a spacing, the expansion plate will extrude the brake pad formed in the expansion groove under the action of the elastic potential energy of the spring one, so that the brake pad slides in the expansion groove and slides out, facilitating the demolding operation.

[0016] 2. The liquid injection assembly is provided, the right die moves to drive the synchronous movement of the left die and the material box, the piston one sealingly slides in the material box, when the piston one moves out from the material injection port position of the material box, the raw material in the material box is pressed into the mold cavity formed by the left die and the right die through the flow groove, ensuring that the raw material can be smoothly and accurately injected into the mold cavity, and providing sufficient material for the brake pad forming. When the added liquid material is more than the standard range, with the increase of the pressure of the mold cavity, the floating block moves upward, the excess liquid material can flow back to the material box through the air hole one, the air hole two, the vertical pipe and the one-way valve, and at the same time, the gas in the mold cavity can flow out along the inside of the vertical pipe, thereby effectively releasing the excess liquid and gas in the mold cavity, ensuring the forming effect of the automobile brake pad within a certain error range.

[0017] 3. The liquid discharge assembly is provided, when the liquid material is about to fill the mold cavity, the floating block is pushed upward by the liquid material, the T-shaped rod is associated with the long plate, and the insertion rod slides in the flow groove, through the cooperation with the connecting rod, the top plate moves downward and is pressed on the upper surface of the long plate, preventing the upward movement of the long plate, thereby preventing the continuous upward movement of the floating block, avoiding the leakage of the liquid material in the mold cavity, and ensuring the stability of the production process and the product quality.

[0018] When the pressure inside the mold cavity increases due to the injection of liquid material and the floating block moves to above the air hole 1, the excess liquid material and gas can be discharged or returned to the material box through the air hole 1, air hole 2, longitudinal pipe and one-way valve, which plays the role of regulating the internal pressure of the mold cavity and discharging gas, thereby ensuring the molding effect of the automobile brake pad.

[0019] 4. An auxiliary component is provided to provide appropriate force between the left and right molds under the action of the gravity of the weight block, ensuring the completion of mold closing, making the left and right molds fit tightly, and ensuring the sealing of the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Cross-sectional view at AA in the middle; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle; Figure 5 For the present invention Figure 2 Enlarged view of point C in the middle; Figure 6 Schematic diagram of the structure of the baffle and the bottom plate in the present invention; Figure 7 It is a structural schematic diagram of the material box and the left mold in the present invention; Figure 8 Schematic diagram of the structure of the left mold and the top plate in the present invention; Figure 9 Schematic diagram of the structure of the trapezoidal block and the arc plate in the present invention; Figure 10 Schematic diagram of the structure of the rod and piston 1 in the present invention; Figure 11 Schematic diagram of the structure of the connecting rod and the connecting shaft in the present invention; Figure 12 This is a schematic structural diagram of the second card plate and the long plate in the present invention; Figure 13 Schematic diagram of the structure of the pressure plate 1 and the right mold in the present invention; Figure 14 Schematic diagram of the structure of the expansion plate and the pressure plate 1 in the present invention; Figure 15 Schematic diagram of the structure of the expansion plate and the second pressing plate in the present invention; In the picture: 1, bottom plate; 2, left mold; 3, right mold; 4, forming assembly; 41, square plate one; 42, optical axis; 43, hydraulic push rod one; 44, square plate two; 45, pressing plate one; 46, expansion plate; 47, hydraulic push rod two; 48, pressing plate two; 49, spring one; 410, expansion groove; 411, side plate; 5, liquid injection assembly; 51, square plate three; 52, pull rod; 53, piston one; 54, insertion rod; 55, material box; 56, flow channel; 57, triangular plate; 58, clamping plate one; 59, spring two; 510, trapezoidal block; 511, arc plate; 6, liquid discharge assembly; 61, floating block; 62, T rod; 63, air hole one; 64, square groove; 65, clamping plate two; 66, spring three; 67, U-shaped frame; 68, accommodation groove; 69, long plate; 610, fixed plate; 611, air hole two; 612, connecting pipe; 613, vertical pipe; 614, one-way valve; 615, top plate; 616, spring four; 617, connecting rod; 618, connecting shaft; 619, inclined groove; 620, inclined surface; 7, auxiliary assembly; 71, vertical box; 72, threaded plug; 73, heavy block; 74, elbow pipe; 75, horizontal box; 76, piston two; 77, horizontal rod; 78, baffle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0022] Embodiment: as Figures 1-15As shown, the present application provides technical solutions, a die casting forming device for automobile brake pad processing, including the bottom plate 1, the surface of the bottom plate 1 is provided with left and right molds 2 and 3, the upper surface of the bottom plate 1 is provided with a liquid discharge assembly 6, the liquid discharge assembly 6 includes a floating block 61, a T-shaped rod 62, a gas hole 63, a clamping plate 65, a spring 66, a U-shaped frame 67, a long plate 69, a fixed plate 610, a gas hole 611, a connecting pipe 612, a vertical pipe 613, a one-way valve 614, a top plate 615, a spring 616, a connecting rod 617 and a connecting shaft 618, the upper surface of the right mold 3 is fixedly connected with the U-shaped frame 67, the inside of the U-shaped frame 67 is fixedly connected with the fixed plate 610, the T-shaped rod 62 is inserted into the sliding groove in the inside of the fixed plate 610, the T-shaped rod 62 and the fixed plate 610 are slidingly connected, the bottom end of the T-shaped rod 62 is fixedly connected with the floating block 61, the upper surface of the fixed plate 610 is provided with the long plate 69, the long plate 69 is inserted into the inside of the U-shaped frame 67, the long plate 69 and the U-shaped frame 67 are slidingly connected, the upper surface of the long plate 69 is fixedly connected with the clamping plate 65, the clamping plate 65 and the U-shaped frame 67 are provided with the spring 66, the two ends of the spring 66 are fixedly connected with the clamping plate 65 and the U-shaped frame 67 respectively, the rectangular slot in the inside of the left mold 2 is inserted with the connecting rod 617, the left mold 2 and the connecting rod 617 are slidingly connected, the top of the connecting rod 617 is fixedly connected with the top plate 615, the top plate 615 and the left mold 2 are provided with the spring 616, the two ends of the spring 616 are fixedly connected with the top plate 615 and the left mold 2 respectively, the bottom end of the connecting rod 617 is fixedly connected with the connecting shaft 618.

[0023] One side of the left mold 2 is provided with a liquid injection assembly 5, the liquid injection assembly 5 includes a square plate 51, a pull rod 52, a piston 53, a plug rod 54, a material box 55, a triangular plate 57, a clamping plate 58, a spring 59, a trapezoidal block 510 and an arc plate 511, one side of the left mold 2 is fixedly connected with the material box 55, the upper surface of the material box 55 is provided with a material injection port, the inside of the material box 55 is inserted with the piston 53, the piston 53 and the material box 55 are sealingly and slidingly connected, one side of the piston 53 is fixedly inserted with the plug rod 54, the upper surface of the bottom plate 1 is fixedly connected with the square plate 51, the piston 53 is fixedly connected with the pull rod 52 away from the plug rod 54, one end of the pull rod 52 away from the piston 53 is fixedly connected with the square plate 51, one side of the piston 53 is fixedly connected with two triangular plates 57, the two triangular plates 57 are attached to the inner wall of the material box 55, the two triangular plates 57 are parallel, and the two triangular plates 57 are located above the plug rod 54.

[0024] The upper surface of the material box 55 is fixedly connected with the clamping plate 58, the inside of the clamping plate 58 is provided with the trapezoidal block 510, the trapezoidal block 510 is inserted into the trapezoidal slot in the upper surface of the material box 55, the bottom end of the trapezoidal block 510 is fixedly connected with the arc plate 511, the trapezoidal block 510 and the clamping plate 58 are provided with the spring 59, the two ends of the spring 59 are fixedly connected with the trapezoidal block 510 and the clamping plate 58 respectively.

[0025] The left mold 2 is internally provided with a flow groove 56 which is matched in size with the insertion rod 54 and corresponds in position to the insertion rod 54, and the material box 55 is provided with a through groove on one side, the through groove on one side of the material box 55 is communicated with the flow groove 56, and the flow groove 56 is close to the bottom surface of the material box 55.

[0026] The surface of the material box 55 is provided with a circular hole in which a vertical pipe 613 is inserted, the vertical pipe 613 is fixedly connected with the material box 55, a one-way valve 614 is installed in the vertical pipe 613, the inside of the left mold 2 is provided with a gas hole two 611, one side of the left mold 2 is fixedly connected with a connecting pipe 612 which is arranged in an inclined manner, the other end of the connecting pipe 612 is inserted into a circular hole provided on the surface of the vertical pipe 613, the vertical pipe 613 is communicated with the inside of the gas hole two 611 through the connecting pipe 612, the upper surface of the right mold 3 is provided with a square groove 64, one side of the right mold 3 is provided with a gas hole one 63, a T-shaped rod 62 is located in the square groove 64, the gas hole one 63 corresponds in position to the gas hole two 611, and the inside of the square groove 64 is communicated with the gas hole one 63.

[0027] One side of the insertion rod 54 is provided with a giving slot 68, the inside of the insertion rod 54 is provided with an inclined groove 619 which is communicated with the giving slot 68, the shapes of the giving slot 68 and the inclined groove 619 can be referred to the drawings Figure 10 The bottom end of the connecting rod 617 is provided with an inclined surface 620, the rectangular groove provided in the inside of the left mold 2 is communicated with the flow groove 56, and the bottom end of the connecting rod 617 extends to the inside of the flow groove 56.

[0028] The surface of the right mold 3 is provided with a forming assembly 4, the forming assembly 4 comprises a square plate one 41, an optical axis 42, a hydraulic push rod one 43, a square plate two 44, a pressing plate one 45, an expansion plate 46, a hydraulic push rod two 47, a pressing plate two 48, a spring one 49 and a side plate 411, the pressing plate one 45 is inserted into an accommodating groove provided in the inside of the right mold 3, the pressing plate one 45 is sealingly and slidably connected with the right mold 3, the pressing plate one 45 is hexagonal, the length of the side on the upper and lower sides of the pressing plate one 45 is the shortest, and the length of the vertical side is the longest, which is beneficial to discharge the internal gas, the expansion plate 46 is inserted into each of a plurality of expansion grooves 410 provided in the inside of the pressing plate one 45, the expansion plate 46 is sealingly and slidably connected with the pressing plate one 45, the pressing plate two 48 is fixedly connected with one side of the expansion plate 46, the hydraulic push rod two 47 is installed in a circular groove one provided on one side of the right mold 3, the end of the telescopic rod of the hydraulic push rod two 47 is fixedly connected with the pressing plate one 45, the telescopic rod of the hydraulic push rod two 47 is slidingly inserted into a containing groove provided in the inside of the pressing plate two 48, a plurality of spring ones 49 are arranged between the pressing plate one 45 and the pressing plate two 48, and the two ends of each spring one 49 are fixedly connected with the pressing plate one 45 and the pressing plate two 48.

[0029] The upper surface of the bottom plate 1 is fixedly connected with a square plate two 44, four slide holes are arranged in the square plate two 44, and the optical shafts 42 are respectively inserted into the slide holes; the optical shafts 42 are in sliding connection with the square plate two 44; the optical shafts 42 are fixed between the right die 3 and the square plate one 41; a circular groove two is arranged in the square plate one 41, and the hydraulic push rod one 43 is arranged in the circular groove two; the end of the telescopic rod of the hydraulic push rod one 43 is fixedly connected with the square plate two 44; and two exhaust holes are arranged on one side of the right die 3.

[0030] The left die 2 is fixedly connected with the side plates 411 on both sides; the side plates 411 are inserted into the slide grooves arranged in the square plate three 51; and the side plates 411 are in sliding connection with the square plate three 51.

[0031] The square plate three 51 is provided with an auxiliary assembly 7; the auxiliary assembly 7 comprises a vertical box 71, a threaded plug 72, a heavy block 73, a bend pipe 74, a horizontal box 75, a piston two 76, a horizontal rod 77 and a baffle plate 78; the upper surface of the square plate three 51 is fixedly connected with the vertical box 71; the heavy block 73 is in sealing sliding connection in the vertical box 71; the threaded hole arranged in the heavy block 73 is screwed with the threaded plug 72; the upper surface of the heavy block 73 is fixedly connected with two U-shaped handles, which facilitates lifting the heavy block 73 when adding hydraulic oil into the vertical box 71; the horizontal box 75 is fixedly connected in the rectangular groove arranged on the surface of the square plate three 51; the bottom end of the vertical box 71 is inserted with the bend pipe 74; the other end of the bend pipe 74 is inserted into one side of the horizontal box 75; the vertical box 71 is connected with the horizontal box 75 through the bend pipe 74; the piston two 76 is inserted into the horizontal box 75; the piston two 76 is in sealing sliding connection with the horizontal box 75; two horizontal rods 77 are fixed between the piston two 76 and the left die 2; the baffle plate 78 is fixedly connected with the upper surface of the bottom plate 1 and located below the right die 3.

[0032] Working principle: when the die casting device is used, the threaded plug 72 is rotated to be screwed out of the threaded hole arranged in the heavy block 73, the heavy block 73 is pulled upwards to be taken out of the vertical box 71, hydraulic oil is poured into the vertical box 71, the hydraulic oil flows into the horizontal box 75 along the inside of the bend pipe 74, the end of the bend pipe 74 connected with the horizontal box 75 is close to the upper side of the horizontal box 75, so that the height of the liquid level in the horizontal box 75 is continuously increased, after adding appropriate hydraulic oil, the heavy block 73 is inserted into the vertical box 71, and when the hydraulic oil flows into the threaded hole arranged in the heavy block 73, the threaded plug 72 is screwed into the threaded hole arranged in the heavy block 73; The device is connected with an external power source, the hydraulic push rod 43 is started, the telescopic rod of the hydraulic push rod 43 is retracted, the square plate 41 is moved towards the square plate 44, the movement of the square plate 41 makes the optical axis 42 slide in the square plate 44, thereby driving the right mold 3 to move towards the left mold 2, when the right mold 3 and the left mold 2 are attached, the two ends of the top plate 615 move above the long plate 69, and there is a suitable gap between the long plate 69, the movement of the right mold 3 can drive the left mold 2 to move synchronously for a distance, the movement of the left mold 2 drives the piston 76 to slide in the horizontal box 75 through the two horizontal rods 77, and under the action of the hydraulic oil in the horizontal box 75, the hydraulic oil in the horizontal box 75 is injected into the vertical box 71 through the elbow pipe 74, under the action of the gravity of the weight 73, the left mold 2 and the right mold 3 have a suitable force, thereby completing the mold closing, at this time, the mold cavity for pressure casting brake pads is formed between the two, and the left mold 2 moves in the sliding groove in the square plate 51, which plays a guiding and stabilizing role, thereby making the left mold 2 and the right mold 3 tightly attached, at this time, the operation of the hydraulic push rod 43 is stopped; After the external controller controls the mechanical arm to pour enough liquid material into the pouring port of the material box 55, the worker retracts the mechanical arm through the external controller; At this time, the hydraulic push rod 43 is continued to be started, the right mold 3 continues to move with the left mold 2, the movement of the left mold 2 drives the material box 55 to move synchronously, thereby making the piston 53 sealably slide in the material box 55, when the piston 53 moves to the pouring port of the material box 55, the liquid level in the material box 55 continuously increases, at this time, the gas in the material box 55 can be discharged along the pouring port of the material box 55, and the flow channel 56 is located in the left mold 2 and communicates with the through groove on the side of the material box 55, so as to ensure that the raw materials can smoothly flow into the mold cavity, at this time, part of the liquid flows into the mold cavity formed by the left mold 2 and the right mold 3 along the inside of the flow channel 56, the gas in the right mold 3 is discharged along the inside of the square groove 64 due to the increase of the liquid in the right mold 3, when the piston 53 moves away from the pouring port of the material box 55, the raw materials in the material box 55 are pressed into the mold cavity formed by the left mold 2 and the right mold 3 through the flow channel 56 due to the movement of the left mold 2 and the material box 55, at this time, the expansion plate 46 will not slide in the expansion groove 410 under the action of the elastic potential energy of the spring 49; When the liquid material is about to fill the cavity, the continuous movement of the tank 55 makes the insertion rod 54 inserted into the inside of the flow groove 56 and continuously slides in the inside of the flow groove 56, at this time, the gas in the inside of the cavity continues to flow upward from the square groove 64, the liquid material pushes the floating block 61 upward until the floating block 61 slides into the inside of the square groove 64, at this time, the floating block 61 continuously slides in the inside of the square groove 64 in the process of continuously increasing the liquid material in the inside of the cavity, the movement of the floating block 61 makes the T-shaped rod 62 slide in the inside of the fixed plate 610 until the top end of the T-shaped rod 62 and the bottom surface of the long plate 69 are flush, and at this time, one end of the insertion rod 54 is just moved to flush with the side of the right mold 3 close to the left mold 2, so that the left mold 2 flushes with the side of the right mold 3 to form a complete plane; In the process of sliding of the insertion rod 54 in the inside of the flow groove 56, when one end of the insertion rod 54 and the chamfered surface 620 at the bottom end of the connecting rod 617 are flush, the connecting rod 617 is lifted under the action of the chamfered surface 620 with the movement of the insertion rod 54 until the bottom end of the connecting rod 617 moves to flush with the upper surface of the insertion rod 54, and the connecting rod 617 can slide on the surface of the insertion rod 54 with the movement of the insertion rod 54, when the connecting rod 617 moves to the position of the accommodation groove 68, the bottom end of the connecting rod 617 can slide into the inside of the accommodation groove 68 by moving a distance, at this time, the connecting shaft 618 is flush with the upper surface of the insertion rod 54, and the connecting shaft 618 slides on the upper surface of the insertion rod 54 with the movement of the insertion rod 54, when the connecting shaft 618 slides to the position of the inclined groove 619, the connecting rod 617 can move downward under the limitation of the shape of the inclined groove 619 with the movement of the insertion rod 54, the downward movement of the connecting rod 617 drives the top plate 615 to move downward until the two ends of the top plate 615 are flush with the upper surface of the long plate 69, and when the top plate 615 is pressed on the upper surface of the long plate 69, one end of the insertion rod 54 is just moved to flush with the side of the right mold 3 close to the left mold 2 at this time, the operation of the hydraulic push rod one 43 can be stopped, the long plate 69 cannot move upward under the pressing of the top plate 615, so that the floating block 61 does not continue to move upward, thereby avoiding the leakage of the liquid material in the inside of the cavity; At this time, the hydraulic push rod two 47 is started, the telescopic rod of the hydraulic push rod two 47 is extended, the pressing plate one 45 is pushed to seal sliding in the right mold 3, and the pressure inside the cavity is continuously increased with the movement of the pressing plate one 45, so that the liquid material inside the cavity continuously increases the force exerted on the expansion plate 46, and the expansion plate 46 slides inside the expansion groove 410, at this time the spring one 49 is in a state of continuous stretching, with the continuous movement of the pressing plate one 45, the expansion plate 46 continuously moves inside the expansion groove 410, thereby continuously increasing the extrusion force of the raw material in the cavity, until the pressing plate one 45 and the side of the left mold 2 are attached, at this time the operation of the hydraulic push rod two 47 is stopped, the liquid material inside the cavity is injected into the inside of the expansion groove 410, that is, the liquid material on the side of the expansion plate 46 away from the pressing plate two 48 is the brake pad, which gradually forms the shape of the automobile brake pad under the action of pressure, and at this time the spring one 49 is stretched for a long distance, that is, the liquid material inside the expansion groove 410 is subjected to a relatively large force, ensuring that the brake pad is more compact and ensuring the compactness of the brake pad production; The existing cooling device is controlled to cool the left mold 2 and the right mold 3 and related parts, and when the liquid material is cooled to a solid state, the hydraulic push rod one 43 is started again, the telescopic rod of the hydraulic push rod one 43 is elongated, thereby moving the left mold 2 and the right mold 3 towards the square plate two 44, and at this time the plug rod 54 is inserted into the flow groove 56, the left mold 2 and the right mold 3 are attached, and under the action of negative pressure, the plug rod 54 cannot slide inside the flow groove 56, thereby preventing the left mold 2 from continuing to move with the right mold 3, until the left mold 2 and the right mold 3 have a gap, under the action of the gravity of the weight 73, the left mold 2 can continue to move towards the right mold 3, until the left mold 2 and the side of the baffle 78 are attached, at this time the left mold 2 cannot continue to move, and the right mold 3 moves away from the left mold 2, during this process, the plug rod 54 slides inside the flow groove 56, and no liquid material flows out of the flow groove 56, and with the movement of the piston one 53, the liquid level of the liquid material inside the tank 55 continuously decreases, when the plug rod 54 slides out of the flow groove 56, the triangular plate 57 slides out of the surface of the arc plate 511, and with the movement of the piston one 53, the external gas flows into the inside of the tank 55 along the inside of the flow groove 56, and with the continuous movement of the piston one 53, the liquid level of the liquid material inside the tank 55 is lower than the position of the flow groove 56, at this time no liquid material flows out of the flow groove 56; When the left die 2 cannot move and the right die 3 and the left die 2 generate a gap, the expansion plate 46 is extruded by the brake pad shaped inside the expansion groove 410 under the action of the elastic potential energy of the spring 49, so that the brake pad inside the expansion groove 410 slides inside the expansion groove 410 and slides out, and after the right die 3 moves to the initial position, the hydraulic push rod 47 is started to make the pressing plate 45 move to the initial position, facilitating the pressure casting forming of the automobile brake pad again; When one end of the insertion rod 54 is inserted into the inside of the flow groove 56, the triangular plate 57 at this time is in contact with the arc plate 511, and during the continuous movement of the piston 53, the trapezoidal block 510 is lifted by the triangular plate 57 under the action of the arc plate 511, at this time the piston 53 slides inside the material box 55, the liquid material inside the material box 55 cannot flow inside the flow groove 56 under the blockage of the insertion rod 54, the sliding of the piston 53 inside the material box 55 can make the gas inside the material box 55 flow out along the gap between the trapezoidal block 510 and the material box 55, and in this process the liquid level inside the material box 55 is constantly increasing, the surface of the material box 55 is provided with the heating device of the prior art, avoiding the shaping of the liquid material inside the material box 55, so as to realize the effect of recycling the waste material remaining inside the material box 55; Since the flow groove 56 is located in the left mold 2 and communicates with the through groove opened on one side of the material box 55, when liquid material is added into the material box 55, part of the liquid flows into the cavity formed by the left mold 2 and the right mold 3 along the inside of the flow groove 56. Since the amount of liquid material poured into the material box 55 each time has an error, when the error of the liquid material is within a certain range, that is, when the amount of liquid material added into the material box 55 is more than the standard range, when the cavity is filled with liquid, as the left mold 2 and the right mold 3 continue to move towards the square plate 51, the liquid material is still injected into the cavity, and as the pressure in the cavity continuously increases, the floating block 61 continues to move upwards, the movement of the floating block 61 stretches the spring 66 by pressing the long plate 69 through the T-shaped rod 62, when the floating block 61 moves above the air hole one 63, as the liquid material continues to be injected into the air hole one 63, and flows into the air hole two 611 along the inside of the air hole one 63, and flows into the vertical pipe 613 along the inside of the air hole two 611, when the triangular plate 57 lifts the trapezoidal block 510 through the arc plate 511, at this time, the pressure in the material box 55 is small, the liquid material flowing into the vertical pipe 613 flows into the inside of the material box 55 through the one-way valve 614, the one-way valve 614 is arranged to allow the liquid in the vertical pipe 613 to flow into the inside of the material box 55, and the gas in the material box 55 will not flow into the inside of the vertical pipe 613, at the same time, the pressing plate one 45 is hexagonal, and the length of the side on the upper and lower sides of the pressing plate one 45 is the shortest, and the length of the vertical side is the longest, which is beneficial to the discharge of the internal gas, when the discharged gas flows into the inside of the vertical pipe 613 and flows out from the inside of the vertical pipe 613, the effect of forming the automobile brake pad is ensured, and defects such as air holes and loose in the brake pad caused by the gas in the cavity are avoided, thereby ensuring the strength of the brake pad and prolonging the service life of the brake pad.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A die-casting device for processing automobile brake pads, comprising a base plate, a left mold and a right mold provided on the surface of the base plate, characterized in that: A drainage assembly is set above the bottom plate, which includes a U-shaped frame fixed on the surface of the right mold, a fixed plate fixed in the U-shaped frame, a T-rod slidingly connected in the fixed plate, a floating block fixed at the bottom end of the T-rod, a long plate slidingly connected in the U-shaped frame, a second clamping plate fixed on the surface of the long plate, a third spring fixed between the second clamping plate and the U-shaped frame, a connecting rod slidingly connected in the left mold, a top plate fixed on the top of the connecting rod, a fourth spring fixed between the top plate and the left mold, and a connecting shaft fixed at the bottom end of the connecting rod.

2. The die-casting molding device for automobile brake pad processing according to claim 1, characterized in that: An injection assembly is provided on one side of the left mold, and the injection assembly includes a material box fixed on one side of the left mold, an injection port is provided on the upper surface of the material box, a piston one is sealed and slidably connected inside the material box, an insertion rod is fixed on one side of the piston one, a square plate three is fixed on the surface of the bottom plate, the piston one is fixedly connected to the square plate three through a pull rod, and two triangular plates are fixed on one side of the piston one.

3. The die-casting device for automobile brake pad processing according to claim 2, characterized in that: A card plate 1 is fixed on the surface of the material box, a trapezoidal block is arranged in the card plate 1, the trapezoidal block is inserted into the trapezoidal groove opened on the upper surface of the material box, an arc plate is fixed at the bottom end of the trapezoidal block, and a spring 2 is fixed between the trapezoidal block and the card plate 1.

4. The die-casting device for automobile brake pad processing according to claim 2, characterized in that: A flow channel is opened in the left mold, and a through groove is opened on one side of the material box, and the flow channel is close to the bottom surface of the material box.

5. The die-casting device for automobile brake pad processing according to claim 2, characterized in that: A longitudinal tube is fixed in a circular hole on the surface of the material box, a one-way valve is installed in the longitudinal tube, a second air hole is opened in the left mold, the longitudinal tube is connected to the second air hole through a connecting pipe, a square groove is opened on the upper surface of the right mold, and an air hole is opened on one side of the right mold.

6. The die-casting device for automobile brake pad processing according to claim 2, characterized in that: The surface of the plug rod is provided with a clearance groove and an oblique groove, and the bottom end of the connecting rod is provided with an oblique cutting surface.

7. The die-casting device for automobile brake pad processing according to claim 1, characterized in that: A forming assembly is set on the surface of the right mold, and the forming assembly includes a pressure plate 1 which is sealed and slidably connected to the right mold. Expansion plates are sealed and slidably inserted in multiple expansion grooves opened in the pressure plate 1. A pressure plate 2 is fixed on one side of the expansion plate. A hydraulic push rod 2 is installed in the right mold. The end of the telescopic rod of the hydraulic push rod 2 is fixedly connected to the pressure plate 1, and a spring 1 is fixed between the pressure plates 1 and 2.

8. The die-casting device for automobile brake pad processing according to claim 1, characterized in that: Square plate 2 is fixed on the surface of the bottom plate, and four optical axes are slidably inserted inside square plate 2. The optical axis is fixed between the right mold and square plate 1. Hydraulic push rod 1 is installed in square plate 1, and the end of the telescopic rod of the hydraulic push rod is fixedly connected to square plate 2.

9. The die-casting device for automobile brake pad processing according to claim 1, characterized in that: Side plates are fixedly connected to both sides of the left mold, and the side plates are slidably inserted into the sliding grooves provided inside the third square plate.

10. The die-casting device for automobile brake pad processing according to claim 2, characterized in that: An auxiliary component is set on the surface of square plate three, and the auxiliary component includes a longitudinal box fixed on the surface of square plate three, a weight block is sealed and slidably connected in the longitudinal box, a threaded plug is screwed in the threaded hole opened in the weight block, a horizontal box is fixedly connected in the rectangular groove opened on the surface of square plate three, the longitudinal box is connected to the horizontal box through a bent pipe, piston two is inserted in the horizontal box, two cross bars are fixed between piston two and the left mold, and a baffle is fixedly connected to the upper surface of the bottom plate, and the baffle is located below the right mold.

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