Multi-cavity precision die casting mold facilitating blanking

Abstract

The present application relates to the technical field of die casting mould, in particular to a multi-cavity precision die casting mould facilitating discharging, which comprises a lower die casting mechanism, an upper die casting mechanism and a feeding mechanism; the lower die casting mechanism comprises a base, two lower die seats and an angle adjusting mechanism, one side of the lower die seat is provided with a hinged structure, the bottom of the lower die seat is provided with an ejection structure, the angle adjusting mechanism is arranged between the two lower die seats, the angle adjusting mechanism comprises a horizontal stress plate and a lifting mechanism, the lifting mechanism is arranged at the lower end of the base, and the lifting mechanism is connected with the horizontal stress plate; the upper die casting mechanism comprises a top plate, which is arranged in parallel above the base; the feeding mechanism comprises a lifting plate and a liquid inlet pipe, the liquid inlet pipe is arranged at the upper end of the lifting plate; the lower die casting mechanism, the upper die casting mechanism and the feeding mechanism are arranged, thereby effectively avoiding the risk of damage caused by the falling of the die casting product back into the lower die.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of die casting molds, in particular to a multi-cavity precision die casting mold facilitating discharging. BACKGROUND

[0002] In the vast field of manufacturing, die casting technology plays a crucial role as a highly efficient and precise forming process. It involves injecting molten metal or alloy into a mold cavity under high pressure, allowing it to cool and solidify, forming a metal product with specific shape and size. Due to the close fit between the die casting product and the mold cavity, it is difficult for the die casting product to be demolded from the lower mold when the product is deeply recessed.

[0003] The patent with publication number CN218799017U discloses a multi-cavity precision die casting mold. After the product is cooled and shaped, an electric push rod drives the support frame to move, thereby driving the ejector pin to move upwards and ejecting the molded product from the lower mold.

[0004] Although the above-mentioned scheme uses an ejector pin to eject the molded product, the lower mold cavity in the above-mentioned scheme is in a vertical state. After the molded product is ejected by the ejector pin, the molded product is still vertically in the lower mold cavity, and the upper mold is still directly above the lower mold, making it inconvenient for workers to take out the molded product from above the lower mold. If the worker drops the molded product during the process of taking it out, the molded product will directly fall into the lower mold, which may cause damage to the molded product. SUMMARY

[0005] To solve the above-mentioned problems, a multi-cavity precision die casting mold facilitating discharging is provided. The present application sets up a lower die casting mechanism, an upper die casting mechanism, and a feeding mechanism, thereby effectively avoiding the risk of damage caused by the die casting product falling back into the lower mold.

[0006] To solve the problems in the prior art, the present application provides a multi-cavity precision die casting mold facilitating discharging for closing the lower mold and the upper mold for die casting, comprising a lower die casting mechanism, an upper die casting mechanism, and a feeding mechanism. The lower die casting mechanism comprises a base, two lower mold seats, and an angle adjusting mechanism. The two lower mold seats are symmetrically arranged on the base. One side of the lower mold seat is provided with a hinged structure, and the two ends of the hinged structure are connected with the base and the lower mold seat, respectively. The bottom of the lower mold seat is provided with an ejecting structure. The angle adjusting mechanism is arranged between the two lower mold seats. The angle adjusting mechanism comprises a horizontal stress plate and a lifting mechanism. The horizontal stress plate is arranged in parallel on the base. The lifting mechanism is arranged at the lower end of the base and connected with the horizontal stress plate. The upper die casting mechanism comprises a top plate arranged in parallel above the base. The feeding mechanism is arranged in the middle of the top plate. The feeding mechanism comprises a lifting plate and a liquid inlet pipe. The liquid inlet pipe is arranged at the upper end of the lifting plate. One end of the liquid inlet pipe is connected with the lifting plate, and the other end of the liquid inlet pipe penetrates the top plate upwards.

[0007] Preferably, the bottom of the lower die seat is provided with a mounting groove, a through groove is formed in the middle of the mounting groove, and the ejection structure comprises a top block, a limiting sliding rod, a transmission plate and a second spring; one end of the top block is slidingly arranged in the through groove; the middle of the limiting sliding rod is connected with the other end of the top block; the transmission plate is arranged in the mounting groove, one end of the transmission plate is hingedly connected with one end of the mounting groove, a limiting sliding groove is formed in the transmission plate, and the limiting sliding rod is slidingly arranged in the limiting sliding groove; the second spring is arranged at the other end of the transmission plate, and the two ends of the second spring are respectively shaft-connected with the transmission plate and the other end of the mounting groove.

[0008] Preferably, the hinged structure comprises a first connecting block, a second connecting block and a self-expanding structure; the first connecting block is connected with the side wall of the lower die seat; the second connecting block is arranged at the lower end of the first connecting block and is hingedly connected with the first connecting block; the self-expanding structure is arranged on the base, and the self-expanding structure comprises a U-shaped plate, the opening of the U-shaped plate faces upward and is connected with the base, and guide sliding grooves are formed at the two ends of the U-shaped plate, and the two ends of the second connecting block are respectively arranged in the two guide sliding grooves of the U-shaped plate.

[0009] Preferably, the self-expanding structure comprises a guide column and a first spring; the guide column is slidingly arranged in the middle of the U-shaped plate, one end of the guide column is connected with the bottom of the second connecting block, and the other end of the guide column extends downward to the lower end of the U-shaped plate; the first spring is sleeved on the other end of the guide column, and the two ends of the first spring are respectively in abutment with the end of the guide column and the U-shaped plate.

[0010] Preferably, the angle adjusting mechanism further comprises two rollers, and the two rollers are respectively arranged at the two ends of the horizontal stress plate.

[0011] Preferably, the lifting mechanism comprises a guide cross rod, two first moving blocks, two first driving plates and a first driving assembly; the guide cross rod is arranged in parallel at the lower end of the base, and the two ends of the guide cross rod are connected with the base; the two first moving blocks are slidingly arranged on the guide cross rod; the two first driving plates correspond to the two first moving blocks respectively, and the two ends of the first driving plate are hingedly connected with the first moving block and the horizontal stress plate respectively; the first driving assembly is arranged between the two first moving blocks, and the first driving assembly is connected with the two first moving blocks.

[0012] Preferably, the lower pressing casting mechanism further comprises a reset structure, and the reset structure is arranged between the two lower die seats and connected with the two lower die seats at the two ends.

[0013] Preferably, the feeding mechanism further comprises a shunt mechanism, and the shunt mechanism comprises a shunt bin and two shunt pipes; the shunt bin is arranged at the lower end of the hoisting plate, a liquid inlet is formed in the middle of the shunt bin, and the liquid inlet is connected with the liquid inlet pipe; the two shunt pipes are symmetrically arranged at the two ends of the shunt bin, one end of the shunt pipe extends into the interior of the shunt bin, and the other end of the shunt pipe is connected with the lower mold.

[0014] Preferably, the flow distribution mechanism further comprises two opening and closing mechanisms, the two opening and closing mechanisms are respectively arranged at two ends of the lifting plate, and two ends of the opening and closing mechanism are respectively connected with the two flow distribution pipes.

[0015] Preferably, the feeding mechanism further comprises a height adjusting structure, the height adjusting structure is arranged on the top plate and connected with the lifting plate.

[0016] The beneficial effects of the present application compared with the prior art are:

[0017] 1. The present application sets the lower pressing casting mechanism, the upper pressing casting mechanism and the feeding mechanism, the lower die base is connected with the base through the hinged structure, ensuring the flexibility of the mold during installation and operation, so that the lower die base can rotate as needed to adapt to different operation requirements, the cooperation of the angle adjusting mechanism and the lifting mechanism makes the opening of the lower mold gradually turn to the outside of the base, facilitating the product removal, and the cooperation of the lifting mechanism and the ejection structure makes the pressure casting product easily separate from the lower mold, at this time the pressure casting product is in an inclined state, and the inclined lower mold and the automatically separated pressure casting product make it easier for the workers to take out the pressure casting product, thereby effectively avoiding the risk of damage caused by the pressure casting product falling back into the lower mold.

[0018] 2. The present application sets the top block, the limiting sliding rod, the transmission plate and the second spring, the second spring exerts a force away from the lower die base on the transmission plate, so that the transmission plate is in an inclined state and partially protrudes from the lower surface of the lower die base, when the lifting mechanism starts to drive the horizontal force plate to rise smoothly, the end of the horizontal force plate comes into contact with the inclined transmission plate and exerts a force towards the lower die base, as the transmission plate rotates, the second spring starts to be compressed and stores energy, when the transmission plate rotates to a certain position, the energy released by the second spring is transmitted to the top block through the limiting sliding slot and the limiting sliding rod, so that the top block is pushed into the lower mold, thereby realizing the synchronization of the inclined pressure casting product and the pressure casting product demolding, and improving the demolding efficiency.

[0019] 3. The present application sets the first connecting block, the second connecting block and the self-expanding structure, the first connecting block can rotate around the hinged point between the first connecting block and the second connecting block, ensuring that the lower die base can perform normal rotating action, during the pressure casting process, the lower die base exerts a force on the second connecting block through the first connecting block, pushing the second connecting block to move in the guide sliding slot of the U-shaped plate, thereby ensuring that the two ends of the lower die base are balanced during the force process, ensuring the stability of the pressure casting process and the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a kind of multi-cavity precision die casting mold of convenient blanking Figure 1 ;

[0021] Figure 2It is a three-dimensional view of a multi-cavity precision die casting mold convenient for discharging Figure 2 ;

[0022] Figure 3 It is a left view of a multi-cavity precision die casting mold convenient for discharging;

[0023] Figure 4 It is Figure 3 the sectional view of A-A in the middle;

[0024] Figure 5 It is a three-dimensional view of the lower mold, base, lower mold seat, hinged structure, angle adjusting mechanism and reset structure in a multi-cavity precision die casting mold convenient for discharging;

[0025] Figure 6 It is a three-dimensional view of the lower mold seat and ejection structure in a multi-cavity precision die casting mold convenient for discharging;

[0026] Figure 7 It is a three-dimensional view of the ejection structure in a multi-cavity precision die casting mold convenient for discharging;

[0027] Figure 8 It is a three-dimensional view of the hinged structure in a multi-cavity precision die casting mold convenient for discharging;

[0028] Figure 9 It is a three-dimensional view of the horizontal force plate, lifting mechanism and roller in a multi-cavity precision die casting mold convenient for discharging;

[0029] Figure 10 It is a three-dimensional view of the lower mold, lower mold seat and reset structure in a multi-cavity precision die casting mold convenient for discharging;

[0030] Figure 11 It is a three-dimensional view of the liquid inlet pipe and flow distribution mechanism in a multi-cavity precision die casting mold convenient for discharging;

[0031] Figure 12 It is a three-dimensional view of the lifting plate and flow distribution mechanism in a multi-cavity precision die casting mold convenient for discharging;

[0032] Figure 13 It is a three-dimensional view of the lifting plate and height adjusting mechanism in a multi-cavity precision die casting mold convenient for discharging.

[0033] As shown in the figure: a multi-cavity precision die casting mold facilitating blanking, used for die casting by combining a lower die 1 and an upper die 2, comprising a lower die casting mechanism 3, an upper die casting mechanism 4 and a feeding mechanism 5; the lower die casting mechanism 3 comprises a base 31, two lower die seats 32 and an angle adjusting mechanism 35, the base 31 is horizontally arranged, the base 31 is provided with die casting hydraulic cylinders 311 around, the two lower die seats 32 are symmetrically arranged on the base 31, the lower die seat 32 is provided with an installation cavity for placing the lower die 1, one side of the lower die seat 32 is provided with a hinged structure 33, both ends of the hinged structure 33 are connected with the base 31 and the lower die seat 32 respectively, the bottom of the lower die seat 32 is provided with an ejection structure 34, the angle adjusting mechanism 35 is arranged between the two lower die seats 32, the angle adjusting mechanism 35 comprises a horizontal stress plate 351 and a lifting mechanism 352, the horizontal stress plate 351 is arranged in parallel on the base 31, the lifting mechanism 352 is arranged at the lower end of the base 31, and the lifting mechanism 352 is connected with the horizontal stress plate 351; the upper die casting mechanism 4 comprises a top plate 41, the top plate 41 is arranged in parallel above the base 31, and the top plate 41 is connected with the die casting hydraulic cylinders 311, and the top plate 41 is provided with a containing cavity in the middle; the feeding mechanism 5 is arranged in the middle of the top plate 41, the feeding mechanism 5 comprises a hoisting plate 51 and a liquid inlet pipe 52, the hoisting plate 51 is arranged in parallel in the containing cavity, the liquid inlet pipe 52 is arranged at the upper end of the hoisting plate 51, one end of the liquid inlet pipe 52 is connected with the hoisting plate 51, and the other end of the liquid inlet pipe 52 penetrates the top plate 41 upwards. DETAILED DESCRIPTION

[0034] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0035] REFERENCE Figures 1 to 13 As shown in the figure: a multi-cavity precision die casting mold facilitating blanking, used for die casting by combining a lower die 1 and an upper die 2, comprising a lower die casting mechanism 3, an upper die casting mechanism 4 and a feeding mechanism 5; the lower die casting mechanism 3 comprises a base 31, two lower die seats 32 and an angle adjusting mechanism 35, the base 31 is horizontally arranged, the base 31 is provided with die casting hydraulic cylinders 311 around, the two lower die seats 32 are symmetrically arranged on the base 31, the lower die seat 32 is provided with an installation cavity for placing the lower die 1, one side of the lower die seat 32 is provided with a hinged structure 33, both ends of the hinged structure 33 are connected with the base 31 and the lower die seat 32 respectively, the bottom of the lower die seat 32 is provided with an ejection structure 34, the angle adjusting mechanism 35 is arranged between the two lower die seats 32, the angle adjusting mechanism 35 comprises a horizontal stress plate 351 and a lifting mechanism 352, the horizontal stress plate 351 is arranged in parallel on the base 31, the lifting mechanism 352 is arranged at the lower end of the base 31, and the lifting mechanism 352 is connected with the horizontal stress plate 351; the upper die casting mechanism 4 comprises a top plate 41, the top plate 41 is arranged in parallel above the base 31, and the top plate 41 is connected with the die casting hydraulic cylinders 311, and the top plate 41 is provided with a containing cavity in the middle; the feeding mechanism 5 is arranged in the middle of the top plate 41, the feeding mechanism 5 comprises a hoisting plate 51 and a liquid inlet pipe 52, the hoisting plate 51 is arranged in parallel in the containing cavity, the liquid inlet pipe 52 is arranged at the upper end of the hoisting plate 51, one end of the liquid inlet pipe 52 is connected with the hoisting plate 51, and the other end of the liquid inlet pipe 52 penetrates the top plate 41 upwards.

[0036] Firstly, the staff selects the appropriate lower die 1 and upper die 2 according to the type of the product to be die-cast, and installs them on the lower die seat 32 of the lower die-casting mechanism 3 and the top plate 41 of the upper die-casting mechanism 4 respectively, the lower die seat 32 is connected with the base 31 through the hinge structure 33, which ensures that the lower die seat 32 can rotate flexibly, and at the same time, the ejection structure 34 is arranged at the bottom of the lower die seat 32, which is used for the separation of the subsequent die-cast product, then the upper die-casting mechanism 4 drives the upper die 2 to move towards the lower die 1, so that the die-casting cavity is formed between the upper die 2 and the lower die 1, then the feeding mechanism 5 starts to work, the liquid inlet pipe 52 is communicated with the two lower dies 1 in the two lower die seats 32, and the molten metal liquid is injected into the die-casting cavity, after a period of cooling, the top plate 41 moves reversely under the drive of the die-casting hydraulic cylinder 311, so that the upper die 2 is separated from the lower die 1, at this time, the angle adjusting mechanism 35 starts to work, the lifting mechanism 352 drives the horizontal force plate 351 to rise stably, the two ends of the horizontal force plate 351 respectively apply upward force to the two lower die seats 32, so that the lower die seat 32 rotates around the hinge structure 33, with the continuous rising of the horizontal force plate 351, the opening of the lower die 1 gradually turns to the outside of the base 31, and at the same time, the contact position of the end of the horizontal force plate 351 with the lower die seat 32 changes constantly, when the end of the horizontal force plate 351 contacts the ejection structure 34, the ejection structure 34 is triggered to separate the die-cast product from the lower die 1, at this time, the die-cast product is in an inclined state, and the inclined lower die 1 and the automatically separated die-cast product make it easier for the staff to take out the die-cast product, thereby effectively avoiding the risk of damage caused by the die-cast product falling back into the lower die 1.

[0037] Referring to Figure 4 , Figure 6 and Figure 7 , the bottom of the lower die seat 32 is provided with a mounting groove, a through groove is formed in the middle of the mounting groove, the ejection structure 34 comprises a top block 341, a limiting sliding rod 342, a transmission plate 343 and a second spring 344; one end of the top block 341 is slidingly arranged in the through groove; the middle of the limiting sliding rod 342 is connected with the other end of the top block 341; the transmission plate 343 is arranged in the mounting groove, and one end of the transmission plate 343 is hinged with one end of the mounting groove, a limiting sliding groove is formed in the transmission plate 343, and the limiting sliding rod 342 is slidingly arranged in the limiting sliding groove; the second spring 344 is arranged at the other end of the transmission plate 343, and the two ends of the second spring 344 are respectively connected with the transmission plate 343 and the other end of the mounting groove.

[0038] In the initial state, the second spring 344 exerts a force on the transmission plate 343 away from the lower die seat 32, so that the transmission plate 343 is in an inclined state, and a part of the transmission plate 343 protrudes from the lower surface of the lower die seat 32. When the lifting mechanism 352 starts to drive the horizontal force plate 351 to rise smoothly, the end of the horizontal force plate 351 will move along the surface of the lower die seat 32 until it comes into contact with the inclined transmission plate 343. At this time, the horizontal force plate 351 will exert a force on the transmission plate 343 towards the lower die seat 32, forcing the transmission plate 343 to rotate around its hinge point with the mounting slot. As the transmission plate 343 rotates, the second spring 344 at the other end of the transmission plate 343 begins to be compressed, and at the same time, the limiting slide groove on the transmission plate 343 generates a pushing force on the limiting slide rod 342. This force not only makes the limiting slide rod 342 move along the limiting slide groove, but also pushes the top block 341 upward through the limiting slide rod 342, finally making the top block 341 enter the lower die 1, thereby realizing the synchronization of tilting die casting products and die casting product demolding, and improving the demolding efficiency.

[0039] Referring to Figure 4 、 Figure 5 and Figure 8 : The hinged structure 33 includes a first connecting block 331, a second connecting block 332 and a self-expanding structure 333. The first connecting block 331 is connected with the side wall of the lower die seat 32. The second connecting block 332 is arranged at the lower end of the first connecting block 331, and the second connecting block 332 is hinged with the first connecting block 331. The self-expanding structure 333 is arranged on the base 31. The self-expanding structure 333 includes a U-shaped plate 3331, the opening of the U-shaped plate 3331 faces upward and is connected with the base 31. The two ends of the U-shaped plate 3331 are both provided with guide slide grooves, and the two ends of the second connecting block 332 are respectively arranged in the two guide slide grooves of the U-shaped plate 3331.

[0040] When the mold is closed for die casting, the lower mold base 32 tends to move downward under the pressure, if the lower mold base 32 is directly hinged with the base 31, the height of one end of the lower mold base 32 is locked, and the other end is in a free state, which may cause uneven stress of the lower mold base 32 when extruded, therefore, the first connecting block 331, the second connecting block 332 and the self-expanding structure 333 are arranged, the second connecting block 332 slides in the guide sliding groove of the U-shaped plate 3331, when the lower mold base 32 is subjected to the force of the horizontal force plate 351, the lower mold base 32 can drive the first connecting block 331 to rotate around the hinge point with the second connecting block 332, to ensure that the lower mold base 32 can normally rotate, when the lower mold base 32 is extruded in the die casting process, the lower mold base 32 will exert a force towards the inside of the U-shaped plate 3331 on the second connecting block 332 through the first connecting block 331, the force pushes the second connecting block 332 to move in the guide sliding groove of the U-shaped plate 3331, so that the second connecting block 332 does not exert an upward force on one end of the lower mold base 32, thereby ensuring the balance of both ends of the lower mold base 32 during the stress process, and ensuring the stability of the die casting process and the product quality.

[0041] Referring to Figure 5 and Figure 8 , the self-expanding structure 333 includes a guide column 3332 and a first spring 3333, the guide column 3332 is slidingly arranged in the middle of the U-shaped plate 3331, one end of the guide column 3332 is connected with the bottom of the second connecting block 332, the other end of the guide column 3332 extends downward to the lower end of the U-shaped plate 3331, the first spring 3333 is sleeved on the other end of the guide column 3332, and both ends of the first spring 3333 are respectively abutted with the end of the guide column 3332 and the U-shaped plate 3331.

[0042] As the second connecting block 332 moves along the U-shaped plate 3331, the horizontal force plate 351 drives the two lower mold bases 32 to rotate, and the lower mold bases 32 drive the second connecting block 332 to move along the guide sliding slot of the U-shaped plate 3331. If the movement of the second connecting block 332 is not limited, the lower mold bases 32 may drive the second connecting block 332 out of the U-shaped plate 3331. Therefore, the guide column 3332 and the first spring 3333 are arranged. With the movement of the second connecting block 332, the second connecting block 332 drives the guide column 3332 to slide in the U-shaped plate 3331. The guide column 3332 not only provides precise guidance for the second connecting block 332, but also compresses the first spring 3333 through its extension end, so that the first spring 3333 is compressed and stores elastic potential energy. When the molded product is removed, the lower mold base 32 starts to reset, and the first spring 3333 starts to release the elastic potential energy stored therein and transmits it to the second connecting block 332 through the guide column 3332, so that the second connecting block 332 is smoothly pulled back into the U-shaped plate 3331 under the guidance of the guide column 3332, thereby ensuring the stability and reliability of the entire hinged structure 33.

[0043] Referring to Figure 4 and Figure 9 As shown: the angle adjusting mechanism 35 further comprises two rollers 353, which are arranged at the two ends of the horizontal force plate 351 respectively.

[0044] When the end of the horizontal force plate 351 exerts an upward force on the bottom of the lower mold base 32, the contact area between the horizontal force plate 351 and the bottom of the lower mold base 32 is small, so that the local stress of the horizontal force plate 351 is large, which easily accelerates the wear of the horizontal force plate 351 and the lower mold base 32. By installing the roller 353 at the two ends of the horizontal force plate 351, the introduction of the roller 353 changes the direct contact between the horizontal force plate 351 and the lower mold base 32 into rolling contact between the roller 353 and the lower mold base 32. With the movement of the horizontal force plate 351, the roller 353 rolls along the surface of the lower mold base 32 and rotates around its own central axis. This rolling friction greatly reduces the friction coefficient compared with sliding friction, thereby significantly reducing the wear of the lower mold base 32.

[0045] Referring to Figure 5 and Figure 9As shown: lifting mechanism 352 includes guide cross rod 3521, two first moving blocks 3522, two first driving plates 3523 and first driving assembly 3524; guide cross rod 3521 is arranged in parallel at the lower end of base 31, and both ends of guide cross rod 3521 are connected with base 31; both of the two first moving blocks 3522 are slidingly arranged on guide cross rod 3521; the two first driving plates 3523 correspond to the two first moving blocks 3522 respectively, both ends of first driving plate 3523 are hingedly connected with first moving block 3522 and horizontal stress plate 351 respectively; first driving assembly 3524 is arranged between the two first moving blocks 3522, and first driving assembly 3524 is connected with the two first moving blocks 3522, first driving assembly 3524 includes first screw rod, two second moving blocks and four third driving plates, first screw rod is perpendicular to guide cross rod 3521, and both ends of first screw rod are connected with base 31, both ends of first screw rod are provided with threads with opposite screw directions, the two second moving blocks are arranged on the threads at both ends of first screw rod respectively, and the four third driving plates are arranged at both ends of the two second moving blocks respectively, both ends of third driving plate are axially connected with first moving block 3522 and second moving block respectively.

[0046] If the first driving assembly 3524 directly drives the horizontal force plate 351 to lift, the downward force of the horizontal force plate 351 will be directly transmitted to the first driving assembly 3524, so that the first driving assembly 3524 is subjected to a vertical downward force, which is easy to cause the first driving assembly 3524 to bend. Therefore, the guide cross rod 3521, the two first moving blocks 3522 and the two first driving plates 3523 are arranged. When the first driving assembly 3524 drives the two first moving blocks 3522 to move close to each other, the two first moving blocks 3522 will simultaneously exert a downward force on the horizontal force plate 351 through the first driving plates 3523 connected thereto, so that the horizontal force plate 351 moves towards the base 31. When the first driving assembly 3524 drives the two first moving blocks 3522 to move away from each other, the two first moving blocks 3522 exert an upward force on the horizontal force plate 351 through the two first driving plates 3523, so that the horizontal force plate 351 moves away from the base 31. In the above process, the force of the horizontal force plate 351 is first transmitted to the first driving plate 3523, and then transmitted to the first moving block 3522 by the first driving plate 3523. The first moving block 3522 is subjected to a vertical force and a horizontal force. The guide cross rod 3521 effectively absorbs the vertical downward force of the first moving block 3522, ensuring the stability of the lifting mechanism 352. At the same time, the horizontal force is transmitted to the first driving assembly 3524 through the first moving block 3522. Since the directions of the horizontal forces of the two first moving blocks 3522 are opposite, the two horizontal forces will generate a mutual counteracting torque on the first driving assembly 3524, thereby avoiding the bending of the first driving assembly 3524 due to uneven force.

[0047] Referring to Figure 5 and Figure 10 As shown in the figures, the lower pressing mechanism 3 further comprises a reset structure 36, which is arranged between the two lower mold bases 32 and has two ends connected with the two lower mold bases 32 respectively. The reset structure 36 comprises an elastic connecting rod 361, and the two ends of the elastic connecting rod 361 are hinged with the two lower mold bases 32 respectively.

[0048] In the die casting operation, the horizontal force plate 351 mainly plays a role of lifting the lower die seat 32 upward, and cannot directly exert a downward force on the lower die seat 32, so the reset structure 36 is arranged, when the two lower die seats 32 are tilted and rotated outward under the action of the horizontal force plate 351, the elastic connecting rod 361 will be stretched accordingly, in this process, the elastic connecting rod 361 stores elastic potential energy, and accumulates energy for the reset action, when the horizontal force plate 351 triggers the ejection structure 34, the elastic connecting rod 361 exerts a force on the lower die seat 32 towards the center of the base 31, ensuring that the ejection structure 34 can be activated smoothly, and when the horizontal force plate 351 moves downward after completing the ejection task, the elastic connecting rod 361 starts to contract, and exerts a force on the two lower die seats 32, thereby achieving accurate resetting of the lower die seat 32.

[0049] Referring to Figure 4 and Figure 11 As shown in the figure, the feeding mechanism 5 further comprises a flow distribution mechanism 53, and the flow distribution mechanism 53 comprises a flow distribution bin 531 and two flow distribution pipes 532; the flow distribution bin 531 is arranged at the lower end of the lifting plate 51, a liquid inlet is formed in the middle of the flow distribution bin 531, and the liquid inlet is connected with the liquid inlet pipe 52; the two flow distribution pipes 532 are symmetrically arranged at the two ends of the flow distribution bin 531, one end of the flow distribution pipe 532 extends into the interior of the flow distribution bin 531, and the other end of the flow distribution pipe 532 is connected with the lower mold 1.

[0050] The workers first accurately place the two lower molds 1 to be used in the two lower die seats 32, and when the molten metal liquid is injected into the two lower molds 1, if the molten metal liquid is injected into the two lower molds 1 in sequence, the temperature of the molten metal liquid in the two lower molds 1 will be different when the molten metal liquid is pressure cast, thereby affecting the subsequent pressure casting process, therefore, the flow distribution mechanism 53 is arranged to simultaneously inject liquid into the two lower molds 1, when the molten metal liquid needs to be injected into the two lower molds 1, the molten metal liquid is first introduced into the flow distribution bin 531 through the liquid inlet pipe 52, and the molten metal liquid is evenly distributed into the two flow distribution pipes 532 in the interior of the flow distribution bin 531, the two flow distribution pipes 532 simultaneously and equally guide the molten metal liquid to the two lower molds 1, thereby ensuring that the two lower molds 1 receive the same amount of molten metal liquid at the same time, and thereby improving the quality and stability of the pressure casting process.

[0051] Referring to Figure 4 and Figure 12As shown: the shunt mechanism 53 further comprises two opening and closing mechanisms 533, which are respectively arranged at the two ends of the hoisting plate 51, and the two ends of the opening and closing mechanism 533 are respectively connected with the two shunt pipes 532. The opening and closing mechanism 533 comprises two second driving assemblies 5331, four second driving plates 5332 and two closing sealing blocks 5333. The two second driving assemblies 5331 are respectively arranged at the two ends of the hoisting plate 51. The second driving assembly 5331 comprises a second screw and a third moving block. The second screw is arranged vertically to the liquid inlet pipe 52 and along the central axis of the hoisting plate 51. The third moving block is threadedly connected with the second screw. The four second driving plates 5332 are respectively arranged at the two sides of the two shunt pipes 532. The two ends of the second driving plate 5332 are respectively connected with the third moving block and the shunt pipe 532.

[0052] In the process of flowing of the molten metal liquid from top to bottom, in order to accurately control the amount of flowing into the lower mold 1, the two opening and closing mechanisms 533 work cooperatively. When it is needed to open the liquid inlet channel to inject the metal liquid, the second driving assembly 5331 drives the two shunt pipes 532 to separate through the two second driving plates 5332 respectively, and simultaneously drives the two closing sealing blocks 5333 to separate, thereby opening the channel between the liquid inlet pipe 52 and the shunt pipe 532. The molten metal liquid can smoothly flow into the space between the two closing sealing blocks 5333, and uniformly and rapidly flow to the two lower molds 1 along the direction of the shunt pipe 532. When it is needed to close the liquid inlet channel to prevent the metal liquid from continuously flowing in, the second driving assembly 5331 drives the two second driving plates 5332 to make the two shunt pipes 532 close to each other. With the closing of the shunt pipe 532, the two closing sealing blocks 5333 are tightly closed, thereby closing the liquid inlet pipe 52. The metal liquid is completely blocked in the liquid inlet pipe 52, thereby ensuring the accurate control of the injection of the metal liquid, and greatly improving the safety and stability of the die casting operation.

[0053] Referring to Figure 4 and Figure 13 As shown: the feeding mechanism 5 further comprises a height adjusting structure 54, which is arranged on the top plate 41 and connected with the hoisting plate 51. The height adjusting structure 54 comprises two height adjusting hydraulic cylinders 541, which are respectively arranged at the two ends of the hoisting plate 51.

[0054] When the flow distributor 532 needs to be docked with different lower molds 1, due to the design difference of the lower molds 1, the docking position of the flow distributor 532 will often be different, if the height of the flow distributor 532 is fixed and unchanged, the molten metal may not be able to flow smoothly into the lower mold 1, therefore, the height adjusting structure 54 is arranged, the two height adjusting hydraulic cylinders 541 work synchronously, so that the two ends of the lifting plate 51 realize synchronous lifting, so as to ensure that the lifting plate 51 drives the flow distributor 532 to move to the required height in the vertical direction, thereby realizing accurate docking with different lower molds 1, and ensuring that the molten metal can flow smoothly and accurately into the lower mold 1.

[0055] The working principle of the above mold is as follows: the upper die casting mechanism 4 and the lower die casting mechanism 3 close the upper mold 2 and the lower mold 1, the flow distributor 53 uniformly distributes the molten metal into the two lower molds 1, after cooling into a formed product, the upper die casting mechanism 4 and the lower die casting mechanism 3 are separated, the lifting mechanism 352 drives the horizontal force plate 351 to horizontally rise, the horizontal force plate 351 drives the two lower mold bases 32 to rotate to the outside of the base 31, and the horizontal force plate 351 is in contact with the two ejection structures 34, the two ejection structures 34 trigger the formed products in the two lower molds 1 to be ejected respectively, so that the formed products are separated from the lower molds 1, and the formed products are convenient for workers to take out.

[0056] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0057] In addition, the description such as "first", "second", "one" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0058] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In addition, the technical solutions among various embodiments of the present application can be combined with each other, but must be based on the fact that a person of ordinary skill in the art can realize the combination, and when the combination of the technical solutions appears contradictory or unachievable, it should be considered that the combination of the technical solutions does not exist and is not within the protection scope required by the present application.

[0060] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the scope defined by the spirit of the present application.

Claims

1. A multi-cavity precision die casting mold facilitating material discharge, for die casting by closing a lower mold (1) and an upper mold (2), characterized in that, The device comprises a lower die casting mechanism (3), an upper die casting mechanism (4) and a feeding mechanism (5); The lower die casting mechanism (3) comprises a base (31), two lower die seats (32) and an angle adjusting mechanism (35), the two lower die seats (32) are symmetrically arranged on the base (31), one side of the lower die seat (32) is provided with a hinged structure (33), both ends of the hinged structure (33) are connected with the base (31) and the lower die seat (32) respectively, the bottom of the lower die seat (32) is provided with an ejection structure (34), the angle adjusting mechanism (35) is arranged between the two lower die seats (32), the angle adjusting mechanism (35) comprises a horizontal stress plate (351) and a lifting mechanism (352), the horizontal stress plate (351) is arranged in parallel on the base (31), the lifting mechanism (352) is arranged at the lower end of the base (31), and the lifting mechanism (352) is connected with the horizontal stress plate (351); the lifting mechanism (352) drives the horizontal stress plate (351) to rise stably, both ends of the horizontal stress plate (351) respectively exert upward force on the two lower die seats (32), so that the lower die seat (32) rotates around the hinged structure (33); The upper die casting mechanism (4) comprises a top plate (41), which is arranged in parallel above the base (31); The feeding mechanism (5) is arranged in the middle of the top plate (41), the feeding mechanism (5) comprises a lifting plate (51) and a liquid inlet pipe (52), the liquid inlet pipe (52) is arranged at the upper end of the lifting plate (51), one end of the liquid inlet pipe (52) is connected with the lifting plate (51), and the other end of the liquid inlet pipe (52) penetrates the top plate (41) upwardly; A mounting groove is formed in the bottom of the lower die seat (32), a through groove is formed in the middle of the mounting groove, and the ejection structure (34) comprises a top block (341), a limiting sliding rod (342), a transmission plate (343) and a second spring (344); One end of the top block (341) is slidably arranged in the through groove; The middle of the limiting sliding rod (342) is connected with the other end of the top block (341); The transmission plate (343) is arranged in the mounting groove, one end of the transmission plate (343) is hinged with one end of the mounting groove, a limiting sliding groove is formed in the transmission plate (343), and the limiting sliding rod (342) is slidably arranged in the limiting sliding groove; The second spring (344) is arranged at the other end of the transmission plate (343), and both ends of the second spring (344) are shaft-connected with the transmission plate (343) and the other end of the mounting groove respectively; The hinged structure (33) comprises a first connecting block (331), a second connecting block (332) and a self-stretching structure (333); The first connecting block (331) is connected with the side wall of the lower die seat (32); The second connecting block (332) is arranged at the lower end of the first connecting block (331), and the second connecting block (332) is hinged with the first connecting block (331); The self-expanding structure (333) is arranged on the base (31), the self-expanding structure (333) comprises a U-shaped plate (3331), the opening of the U-shaped plate (3331) faces upwards, and the U-shaped plate (3331) is connected with the base (31), guide sliding grooves are arranged at two ends of the U-shaped plate (3331), and the two ends of the second connecting block (332) are arranged in the two guide sliding grooves of the U-shaped plate (3331) respectively; The self-expanding structure (333) comprises a guide column (3332) and a first spring (3333); The guide column (3332) is slidingly arranged at the middle part of the U-shaped plate (3331), one end of the guide column (3332) is connected with the bottom of the second connecting block (332), and the other end of the guide column (3332) extends downwards to the lower end of the U-shaped plate (3331); The first spring (3333) is sleeved at the other end of the guide column (3332), and the two ends of the first spring (3333) are respectively in abutment with the end part of the guide column (3332) and the U-shaped plate (3331); The angle adjusting mechanism (35) further comprises two rollers (353), and the two rollers (353) are arranged at the two ends of the horizontal stress plate (351) respectively.

2. The multi-cavity precision die casting mold facilitating material discharging according to claim 1, characterized in that, The lifting mechanism (352) comprises a guide cross rod (3521), two first moving blocks (3522), two first driving plates (3523) and a first driving assembly (3524); The guide cross rod (3521) is arranged in parallel at the lower end of the base (31), and the two ends of the guide cross rod (3521) are connected with the base (31); The two first moving blocks (3522) are slidingly arranged on the guide cross rod (3521); The two first driving plates (3523) correspond to the two first moving blocks (3522) respectively, and the two ends of the first driving plate (3523) are hingedly connected with the first moving block (3522) and the horizontal stress plate (351) respectively; The first driving assembly (3524) is arranged between the two first moving blocks (3522), and the first driving assembly (3524) is connected with the two first moving blocks (3522).

3. The multi-cavity precision die casting mold facilitating the stripping according to claim 1, characterized in that, The lower pressing mechanism (3) further comprises a reset structure (36), the reset structure (36) is arranged between the two lower mold bases (32), and the two ends of the reset structure (36) are connected with the two lower mold bases (32) respectively.

4. The multi-cavity precision die casting mold facilitating stripping according to claim 1, wherein, The feeding mechanism (5) further comprises a flow dividing mechanism (53), and the flow dividing mechanism (53) comprises a flow dividing bin (531) and two flow dividing pipes (532); The flow dividing bin (531) is arranged at the lower end of the hoisting plate (51), a liquid inlet is arranged at the middle part of the flow dividing bin (531), and the liquid inlet is connected with the liquid inlet pipe (52); The two flow dividing pipes (532) are symmetrically arranged at the two ends of the flow dividing bin (531), one end of the flow dividing pipe (532) extends into the flow dividing bin (531), and the other end of the flow dividing pipe (532) is connected with the lower mold (1).

5. The multi-cavity precision die casting mold facilitating the stripping according to claim 4, characterized in that, The flow dividing mechanism (53) further comprises two opening and closing mechanisms (533), the two opening and closing mechanisms (533) are arranged at the two ends of the hoisting plate (51) respectively, and the two ends of the opening and closing mechanism (533) are connected with the two flow dividing pipes (532) respectively.

6. The multi-cavity precision die casting mold facilitating the stripping of the castings according to claim 4, wherein, The feeding mechanism (5) further comprises a height adjusting structure (54) arranged on the top plate (41) and connected with the hoisting plate (51).

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