Die-casting extrusion device and die-casting production line

Abstract

The utility model relates to a die-casting extrusion device which comprises a base, the base is at least provided with a first cylinder body and a second cylinder body, the first cylinder body is provided with a first cavity, the second cylinder body is provided with a second cavity, the die-casting extrusion device is provided with a side wall part, and the side wall part is located on the peripheral wall where the first cylinder body and the second cylinder body intersect. Perpendicular to the first direction, the first cavity is located on one side of the side wall part, and the second cavity is located on the other side of the side wall part; the die-casting extrusion device comprises a first extrusion assembly and a second extrusion assembly, the first extrusion assembly is located on the lower side of the first cylinder body in the first direction, and the second extrusion assembly is located on the lower side of the second cylinder body in the first direction; the first extrusion assembly comprises a first extrusion rod, and the first extrusion rod can move in the first direction; the second extrusion assembly comprises a second extrusion rod, the second extrusion rod can move in the first direction, and extrusion feeding is conducted on the two to-be-extruded positions in the limited space.

Description

Technical Field

[0001] This utility model relates to the field of die casting technology, specifically a die casting extrusion device and die casting production line for automotive heat exchanger components. Background Technology

[0002] Die casting produces metal parts by injecting molten metal into a mold under pressure, which then cools and solidifies. Die casting offers high production efficiency and good formability, making it suitable for the efficient production of complex components. However, in the die casting of some thick-walled parts, the rapid filling of the mold cavity by the molten metal under pressure makes it difficult for the casting to be properly compensated for shrinkage, easily leading to shrinkage cavities.

[0003] As the inventors know, applying pressure to the thicker sections of a die-cast part can promptly compensate for shrinkage, thereby achieving better casting quality. However, in complex structures with two areas to be extruded that are close together, it is difficult to extrude and compensate for shrinkage within a limited space. Utility Model Content

[0004] The purpose of this application is to provide a die-casting extrusion device that enables extrusion and feeding of two extrusion sites within a limited space.

[0005] This application provides a die-casting extrusion device, including a base, the base having at least a first cylinder and a second cylinder, the first cylinder having a first cavity and the second cylinder having a second cavity, the die-casting extrusion device having a sidewall portion located on the peripheral wall where the first cylinder and the second cylinder intersect, the height direction of the die-casting extrusion device being defined as a first direction, perpendicular to the first direction; the first cavity being located on one side of the sidewall portion and the second cavity being located on the other side of the sidewall portion; the die-casting extrusion device includes a first extrusion assembly and a second extrusion assembly, the first extrusion assembly being located on the lower side of the first cylinder along the first direction, and the second extrusion assembly being located on the lower side of the second cylinder along the first direction; the first extrusion assembly includes a first extrusion rod, which is movable along the first direction; the second extrusion assembly includes a second extrusion rod, which is movable along the first direction.

[0006] Thus, the die-casting extrusion device includes a base, which has at least a first cylinder and a second cylinder. The first cylinder has a first cavity, and the second cylinder has a second cavity. A sidewall is located on the circumferential wall where the first and second cylinders intersect. A first extrusion assembly is located on the lower side of the first cylinder along a first direction, and a second extrusion assembly is located on the lower side of the second cylinder along the first direction. The first cylinder contains hydraulic oil or gas, which applies pressure to the first extrusion assembly. The first extrusion rod of the first extrusion assembly moves along the first direction, thereby extruding the first area to be extruded. The second cylinder contains hydraulic oil or gas, which applies pressure to the second extrusion assembly. The second extrusion rod of the second extrusion assembly moves along the first direction, thereby extruding the second area to be extruded. The sidewall is located on the circumferential wall where the first and second cylinders intersect. The first and second cylinders are relatively close, enabling extrusion and compression compensation of the first and second areas to be extruded within a relatively close distance, i.e., enabling extrusion and compression compensation of the first and second areas to be extruded within a limited space.

[0007] This application provides a die-casting production line, including a die-casting extrusion device. The die-casting extrusion device includes a base, the base having at least a first cylinder and a second cylinder. The first cylinder has a first cavity, and the second cylinder has a second cavity. The die-casting extrusion device has a sidewall portion located on the peripheral wall where the first cylinder and the second cylinder intersect. The height direction of the die-casting extrusion device is defined as a first direction, perpendicular to the first direction. The first cavity is located on one side of the sidewall portion, and the second cavity is located on the other side of the sidewall portion. The die-casting extrusion device includes a first extrusion assembly and a second extrusion assembly. The first extrusion assembly is located on the lower side of the first cylinder along the first direction, and the second extrusion assembly is located on the lower side of the second cylinder along the first direction. The first extrusion assembly includes a first extrusion rod, which is movable along the first direction. The second extrusion assembly includes a second extrusion rod, which is movable along the first direction. The first cylinder is connected to a first fluid circulation pipeline, and the second cylinder is connected to a second fluid circulation pipeline.

[0008] Thus, the die-casting production line is equipped with a die-casting extrusion device. The side wall of the die-casting extrusion device is located on the peripheral wall where the first cylinder and the second cylinder intersect. The first extrusion rod of the die-casting extrusion device is located below the first cylinder along the first direction, and the second extrusion rod of the die-casting extrusion device is located below the second cylinder along the first direction. The side wall is located on the peripheral wall where the first cylinder and the second cylinder intersect. The first cylinder and the second cylinder share the same base, which saves installation space, reduces the space occupied by the die-casting production line, and enables extrusion and feeding at two extrusion points. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the die-casting extrusion device in one embodiment;

[0010] Figure 2 for Figure 1 The diagram shows a front view of the die-casting extrusion device.

[0011] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the base of the die-casting extrusion device.

[0012] Figure 4 for Figure 1 The diagram shown is a first-view schematic of the die-casting extrusion device.

[0013] Figure 5 for Figure 2 The diagram shows a cross-sectional view of the die-casting extrusion device AA'.

[0014] Figure 6 This is a cross-sectional schematic diagram of the die-casting extrusion device in another embodiment;

[0015] Figure 7 This is a cross-sectional schematic diagram of the die-casting extrusion device in yet another embodiment;

[0016] Figure 8 This is a partial cross-sectional schematic diagram of a die-casting production line in one embodiment. Detailed Implementation

[0017] To facilitate understanding of the purpose and content of this utility model, the embodiments of this application will be further described below with reference to the accompanying drawings.

[0018] The inventor's known method of extruding multiple points involves fixing two or more extrusion pins to a plate. A single cylinder, using mechanical linkages, transmission devices, or a hydraulic distribution system, simultaneously drives the movement of multiple extrusion pins, enabling coordinated operation. However, hydraulic distribution systems, transmission devices, or mechanical linkages driving multiple extrusion pins can lead to poor consistency and coordination of their movements, resulting in poor stability of the extrusion system. Furthermore, these methods require a significant amount of space.

[0019] This application provides a die-casting extrusion device, including a base 1, the base 1 having at least a first cylinder 11 and a second cylinder 12, the first cylinder 11 having a first cavity 114, the second cylinder 12 having a second cavity 124, the die-casting extrusion device having a side wall portion, the side wall portion being located on the peripheral wall where the first cylinder and the second cylinder intersect, the height direction of the die-casting extrusion device being defined as a first direction, perpendicular to the first direction: the first cavity 114 being located on one side of the side wall portion 13, the second cavity 124 being located on the other side of the side wall portion 13; the die-casting extrusion device includes a first extrusion assembly 110 and a second extrusion assembly 120, the first extrusion assembly 110 being located on the lower side of the first cylinder 11 along the first direction, the second extrusion assembly 120 being located on the lower side of the second cylinder 12 along the first direction; the first extrusion assembly 110 including a first extrusion rod 31, the first extrusion rod 31 being movable along the first direction; the second extrusion assembly 120 including a second extrusion rod 32, the second extrusion rod 32 being movable along the first direction.

[0020] Thus, the first cylinder 11 and the second cylinder 12 share the same side wall 13, and are mounted on the same base 1, enabling compression and feeding at both extrusion points while occupying minimal space. The shared base saves installation space and increases space utilization. Furthermore, it reduces the use of base materials and processing costs, improving the convenience of maintenance and management.

[0021] In some embodiments, two or more cylinders are provided in the same base space to achieve compression and shrinkage at two or more locations to be compressed.

[0022] In one embodiment, such as Figures 1-5 As shown, the first extrusion assembly 110 includes a first drive member 61, which is connected to the first cylinder 11, and a first extrusion rod 31 is connected to the first drive member 61. The first drive member 61 can drive the first extrusion rod 31 to move along a first direction. The second extrusion assembly includes a second drive member 62, which is connected to the second cylinder 12, and a second extrusion rod 32 is connected to the second drive member 62. The second drive member 62 can drive the second extrusion rod 32 to move along the first direction.

[0023] In this embodiment, the first driving member 61 has a first piston chamber 614, which is connected to the first chamber 114; the second driving member 62 has a second piston chamber 624, which is connected to the second chamber 124; the die-casting extrusion device has an extrusion state, in which the first piston chamber 614 is filled with liquid or gas, and / or the second piston chamber 624 is filled with liquid or gas.

[0024] The first driving member 61 has a first receiving portion 611, a first piston chamber 614 located within the first receiving portion 611, and a first piston push rod 612. The upper end of the first piston push rod 612 along a first direction is located in the first piston chamber 614, and the first piston push rod 612 is slidably connected to the inner peripheral wall of the first receiving portion 611. A first extrusion rod 31 is located at the lower end of the first piston push rod 612 along the first direction. In this embodiment, a first piston connector 613 is connected to the lower end of the first piston push rod 612, and the end of the first piston connector 613 away from the first piston push rod 612 is connected to the first extrusion rod 31. The upper end of the first piston push rod 612 along the first direction is defined as a first piston sliding portion 6121. The radially outer peripheral wall of the first piston sliding portion 6121 is slidably connected to the inner peripheral wall of the first receiving portion 611, and a seal is formed between the radially outer peripheral wall of the first piston sliding portion 6121 and the inner peripheral wall of the first receiving portion 611, which can isolate hydraulic oil or gas above the first piston sliding portion 6121 along the first direction.

[0025] The structure of the second driving member 62 can be similar to that of the first driving member 61, or it can adopt other similar piston structures, as detailed in other embodiments. In this embodiment, the structure of the second driving member 62 is similar to that of the first driving member 61.

[0026] Specifically, the second driving member 62 includes a second receiving portion 621, a second piston chamber 624 located within the second receiving portion 621, and a second piston push rod 622. The upper end of the second piston push rod 622 along the first direction is located within the second piston chamber 624, and the second piston push rod 622 is slidably connected to the inner peripheral wall of the second receiving portion 621. The second extrusion rod 32 is located below the second piston push rod 622 along the first direction. The upper end of the second piston push rod 622 along the first direction includes a second piston sliding portion 6221. The radially outer peripheral wall of the second piston sliding portion 6221 is slidably connected to the inner peripheral wall of the second receiving portion 621, and a seal is formed between the radially outer peripheral wall of the second piston sliding portion 6221 and the second receiving portion 621, thereby isolating hydraulic oil or gas above the second piston sliding portion 6221 along the first direction.

[0027] The first drive member 61 and the second drive member 62 adopt the above structure, which can effectively isolate the hydraulic oil or gas from the first extrusion rod 31 and the second push rod 32, thereby improving the sealing performance of the first drive member 61 and the first cylinder 11, and improving the sealing performance of the second drive member 62 and the second cylinder 12.

[0028] In this embodiment, a first clamp 21 is provided on the upper outer periphery of the first driving member 61 and the first pressing rod 31 along the first direction, and a second clamp 22 is provided on the upper outer periphery of the second driving member 62 and the second push rod 32 along the first direction. This improves the coaxiality of the first driving member 61 and the first pressing rod 31, and also improves the coaxiality of the second driving member 62 and the second push rod 32.

[0029] The die-casting extrusion device has a first guide sleeve 91 and a second guide sleeve 92. The lower end of the first extrusion rod 31 along the first direction has a first extrusion portion 312, and the lower end of the second extrusion rod 32 along the first direction has a second extrusion portion 322. The die-casting extrusion device has an extrusion state. In the extrusion state: at least a portion of the first extrusion portion 312 is located in the first guide cavity 913 of the first guide sleeve 91, and the height of the first extrusion end 3120 of the first extrusion portion 312 along the first direction is level with or lower than the height of the first guide end 912 of the first guide sleeve 91; the second extrusion portion 322 is located in the second guide cavity 923 of the second guide sleeve 92, and the height of the second extrusion end 3220 of the second extrusion portion 322 along the first direction is level with or lower than the height of the second guide end 922 of the second guide sleeve 92.

[0030] Thus, the first guide end 912 of the first guide sleeve 91 positions the extrusion position of the first extrusion end 3120, and the first guide sleeve 91 guides the first extrusion rod along the extrusion movement path in the first direction, thereby improving the accuracy of the extrusion point of the first extrusion rod. Similarly, the second guide end 922 of the second guide sleeve 92 positions the extrusion position of the second extrusion end 3220, and the second guide sleeve 92 guides the movement path of the second extrusion rod, thereby improving the accuracy of the extrusion point of the second extrusion rod.

[0031] The base 1 has a mounting portion 14 located on the upper side of the first cylinder body 11 and the second cylinder body 12 along a first direction; the mounting portion 14 has a mounting hole 141, and the base 1 is mounted on the production line through the mounting portion 14. The first cylinder body 11 has a first cylinder inner peripheral wall 111, a first bottom wall 112, and a first connecting wall 113; the second cylinder body 12 has a second cylinder inner peripheral wall 121, a second bottom wall 122, and a second connecting wall 123; the outer peripheral side of the first bottom wall 112 is connected to the first cylinder inner peripheral wall 111, and the inner peripheral side of the first bottom wall 112 is connected to the first connecting wall 113; the first extrusion assembly 110 is sealed to the first connecting wall 113 or the first cylinder inner peripheral wall 111; the outer peripheral side of the second bottom wall 122 is connected to the second cylinder inner peripheral wall 121, and the inner peripheral side of the second bottom wall 122 is connected to the second connecting wall 123; the second extrusion assembly 120 is sealed to the second cylinder inner peripheral wall 121 or the second connecting wall 123.

[0032] In this embodiment, the diameter d1 of the first cylinder 11 and the cross-section of the internal cavity of the second cylinder 12 perpendicular to the first direction are circular. The diameters d1 and d2 of the first cylinder 11 and the second cylinder 12 are designed according to the extrusion force of the first extrusion rod and the second extrusion rod, respectively. The minimum thickness d3 of the sidewall portion 13 perpendicular to the first direction is set according to the pressure between the first cylinder 11 and the second cylinder 12. Under the premise of meeting the pressure resistance requirements, the minimum thickness d3 of the sidewall portion 13 perpendicular to the first direction is as small as possible to further achieve extrusion compensation at the extrusion point within a smaller distance. In other embodiments, the diameter d1 of the first cylinder 11 and the cross-section of the internal cavity of the second cylinder 12 perpendicular to the first direction can also be other shapes, such as square, elliptical, etc.

[0033] The first cylinder 11 is connected to a first fluid circulation pipe 41, and the second cylinder 12 is connected to a second fluid circulation pipe 42. Specifically, the first fluid circulation pipe 41 includes a first fluid inlet pipe 411 and a first fluid outlet pipe 412, with the first fluid inlet pipe 411 located above the first fluid outlet pipe 412 along a first direction. The second fluid circulation pipe includes a second fluid inlet pipe 421 and a second fluid outlet pipe 422, with the second fluid inlet pipe 421 located above the second fluid outlet pipe 422 along the first direction.

[0034] Thus, the first cylinder 11 is connected to the first fluid circulation pipe 41, and the second cylinder 12 is connected to the second fluid circulation pipe 42, which improves the efficiency of fluid pressure transmission and enables synchronous extrusion. Furthermore, this configuration allows for separate control of the first fluid circulation pipe 41 and the second fluid circulation pipe 42, enabling extrusion at a single extrusion point and adapting to various application scenarios. Moreover, the hydraulic oil in the first cylinder 11 is controlled through the first circulation pipe 41, and the hydraulic oil in the second cylinder 12 is controlled through the second circulation pipe 42. For different sizes of the first cylinder 11 and the second cylinder 12, corresponding to different sizes of the first and second extrusion rods, the flow rate and pressure of the hydraulic oil can be flexibly adjusted, thereby regulating the working state and pressure of the first and second extrusion rods. This reduces the problem of uneven force distribution on the first and second cylinders, solves the problem of uneven load distribution on the base, and improves the reliability and service life of the extrusion device.

[0035] In addition, the first cylinder and the second cylinder are controlled by different fluid circulation loops, so that when a problem occurs in an individual cylinder, it can be easily handled separately without affecting the normal operation of other cylinders.

[0036] In this embodiment, during the extrusion state of the die-casting extrusion device, hydraulic oil is input through the first fluid input pipe 411. The hydraulic oil enters the first chamber 114 within the first cylinder 11 and then the first piston chamber 614, which communicates with the first chamber 114. Under the pressure of the hydraulic oil, the first piston push rod 612 moves downward in the first direction, pushing the first extrusion rod 31 downward. The first extrusion portion 312 at the lower end of the first extrusion rod 31 extrudes the first part of the casting to be extruded. After extrusion is completed, the hydraulic oil is drawn away through the first fluid output pipe 412, and the first piston push rod 612 moves upward in the first direction, driving the first extrusion rod 31 upward.

[0037] In the extrusion state of the die-casting extrusion device, hydraulic oil is introduced through the second fluid input pipe 421. The hydraulic oil enters the second chamber 124 within the second cylinder 12 and then the second piston chamber 624, which communicates with the second chamber 124. Under the pressure of the hydraulic oil, the second piston push rod 622 moves downward in the first direction, pushing the second extrusion rod 32 downward. The second extrusion section 322 at the lower end of the second extrusion rod 32 extrudes the second part of the casting to be extruded. After extrusion is completed, the hydraulic oil is drawn away through the second fluid output pipe 422, and the second piston push rod 622 moves upward in the first direction, driving the second extrusion rod 32 upward.

[0038] In another embodiment, such as Figure 6 As shown, the first extrusion assembly 110 includes a first driving member 61, which has a first piston chamber 614 that communicates with the first cavity 114. The upper end of the first extrusion rod 31 along the first direction has a first extrusion driving part 313, which is located in the first piston chamber 614. The radial outer peripheral wall of the first extrusion driving part 313 is slidably connected to the inner peripheral wall of the first driving member 61, and the radial outer peripheral wall of the first extrusion driving part 313 is sealed to the inner peripheral wall of the first driving member 61, thereby isolating hydraulic oil or gas above the first extrusion driving part 313 along the first direction.

[0039] The first extrusion drive part 313 of the first extrusion rod 31 is connected to the first extrusion support part 311 along the first direction downward, and the first extrusion part 312 is located below the first extrusion support part 311 along the first direction.

[0040] In some embodiments, the second extrusion assembly includes a second driving member, and the structure of the second driving member 62 may be similar to that of the aforementioned embodiments. In this embodiment, the structure of the second driving member 62 is similar to that of the first driving member 61 in this embodiment, and the connection method between the second driving member 62 and the second extrusion rod 32 is similar to the connection method between the first driving member 61 and the first extrusion rod 31.

[0041] Specifically, the second driving member 62 has a second piston chamber 624, and the upper end of the second extrusion rod 32 along the first direction has a second extrusion driving part 323. The second extrusion driving part 323 is located in the second piston chamber 624. The radial outer peripheral sidewall of the second extrusion driving part 323 is slidably connected to the inner peripheral wall of the second driving member 62, and the radial outer peripheral sidewall of the second extrusion driving part 323 is sealed to the inner peripheral wall of the second driving member 62, which can isolate hydraulic oil or gas above the second extrusion driving part 323 along the first direction.

[0042] The second extrusion drive unit 323 is sealed with its radial outer peripheral sidewall and the inner peripheral wall of the second drive member 62. This seal makes it extremely difficult for hydraulic oil or gas to pass through the space between the second extrusion drive unit 323 and the inner peripheral wall of the second drive member 62 in the circumferential direction. This allows the hydraulic oil or gas above the second extrusion drive unit 323 along the first direction to drive the second extrusion drive unit 323 to move downward.

[0043] The second extrusion drive part 323 of the second extrusion rod 32 is connected to the second extrusion support part 321 along the first direction downward, and the second extrusion part 322 is located below the second extrusion support part 321 along the first direction.

[0044] Specifically, in this embodiment, the cross-sections of the first cavity 114 and the second cavity 124 perpendicular to the first direction are circular. The diameter of the first cavity 114 is d1, and the diameter of the second cavity is d2. The diameter of the first piston cavity 614 connected to the first cavity 114 perpendicular to the first direction is d4, and the diameter of the second piston cavity 624 connected to the second cavity 124 perpendicular to the first direction is d5. The diameter d4 of the first piston cavity 614 connected to the first cavity 114 perpendicular to the first direction is smaller than the diameter d1 of the first cavity 114, and the diameter d5 of the second piston cavity 624 connected to the second cavity 124 perpendicular to the first direction is smaller than the diameter d2 of the second cavity. In this way, hydraulic oil or gas can be squeezed from the larger diameter first cavity 114 and / or the second cavity 124 into the corresponding smaller diameter first piston cavity 614 and / or the second piston cavity 624. Under the same squeezing volume, the squeezing intensity at the upper end of the first squeezing rod 31 and / or the upper end of the second squeezing rod 32 can be increased. In this way, even when the first extrusion rod and / or the second extrusion rod are subjected to a certain extrusion intensity, the extrusion intensity on the first cylinder 11 and / or the second cylinder 12 is relatively small, thereby improving the reliability and service life of the extrusion device.

[0045] In this embodiment, the gas structure of the die-casting extrusion device can be the same as or similar to that in the previous embodiment.

[0046] In yet another embodiment, such as Figure 7As shown, the first extrusion assembly 110 includes a first driving member. The upper end of the first driving member along the first direction has a first piston extrusion portion 615. The radially outer peripheral sidewall of the first piston extrusion portion 615 is slidably connected to the inner peripheral wall 111 of the first cylinder, and a seal is formed between the radially outer peripheral sidewall of the first piston extrusion portion 615 and the inner peripheral wall 111 of the first cylinder. The lower end of the first driving member 61 along the first direction has a first piston connector 613. The first piston connector 613 is located below the first piston extrusion portion 615 along the first direction, and the end of the first piston connector 613 away from the first piston extrusion portion 615 is connected to the first extrusion rod 31.

[0047] The second extrusion assembly includes a second driving member, the upper end of which along the first direction has a second piston extrusion portion 625, the radial outer peripheral sidewall of the second piston extrusion portion 625 is slidably connected to the inner peripheral wall 121 of the second cylinder, and there is a seal between the radial outer peripheral sidewall of the second piston extrusion portion 625 and the inner peripheral wall 121 of the second cylinder.

[0048] Thus, hydraulic oil or gas is injected into the first chamber 114, causing the first piston extrusion section 615 to move downwards in the first direction. The first driving member drives the first extrusion rod 31 to move in the first direction to extrude and compress the first part of the casting to be extruded. Hydraulic oil or gas is injected into the second chamber 124, causing the second piston extrusion section 625 to move downwards in the first direction. The second driving member drives the second extrusion rod 32 to move in the first direction to extrude and compress the second part of the casting to be extruded.

[0049] In this embodiment, other structures may be the same as or similar to those in the aforementioned embodiments. The structures of the first driving member and the second driving member, as well as the connection methods between the first driving member and the first extrusion rod and between the second driving member and the second extrusion rod, may be the same or a combination of different methods in this embodiment.

[0050] In other embodiments, it is understood that, according to the concept of this application, more than two cylinders can be provided to extrude a corresponding number of castings to be extruded, such as three cylinders, four cylinders, etc. Furthermore, several die-casting extrusion devices as described in this application can be provided to extrude different areas to be extruded.

[0051] In one embodiment, a die-casting production line is provided, such as Figure 8As shown, the die-casting production line includes a die-casting extrusion device, which includes a base 1. The base 1 has at least a first cylinder 11 and a second cylinder 12. The first cylinder 11 has a first cavity 114, and the second cylinder 12 has a second cavity 124. A side wall portion 13 is located on the peripheral wall where the first cylinder 11 and the second cylinder 12 intersect. The height direction of the die-casting extrusion device is defined as a first direction, perpendicular to the first direction. The first cavity 114 is located on one side of the side wall portion 13, and the second cavity 124 is located on the other side of the side wall portion 13. The die-casting extrusion device includes a first... The first extrusion assembly 110 and the second extrusion assembly 120 are located on the lower side of the first cylinder 11 along the first direction, and the second extrusion assembly 120 is located on the lower side of the second cylinder 12 along the first direction. The first extrusion assembly 110 includes a first extrusion rod 31, which is movable along the first direction. The second extrusion assembly includes a second extrusion rod 32, which is movable along the first direction. The first cylinder 11 is connected to a first fluid circulation pipe 41, and the second cylinder 12 is connected to a second fluid circulation pipe 42.

[0052] The die-casting extrusion device has a first guide sleeve 91, a first extrusion rod 31 with a first extrusion portion 312 at its lower end along a first direction, and a die-casting extrusion device in an extrusion state. In the extrusion state, the first extrusion portion 312 is located in the first guide cavity 913 of the first guide sleeve 91, and the height of the first extrusion end 3120 of the first extrusion portion 312 along the first direction is level with or lower than the height of the first guide end 912 of the first guide sleeve 91; and / or, the die-casting extrusion device has a second guide sleeve 92, a second extrusion rod 32 with a second extrusion portion 322 at its lower end along the first direction; the die-casting extrusion device in an extrusion state, in the extrusion state, the second extrusion portion 322 is located in the second guide cavity 923 of the second guide sleeve 92, and the height of the second extrusion end 3220 of the second extrusion portion 322 along the first direction is level with or lower than the height of the second guide end 922 of the second guide sleeve 92. The die casting production line includes a die casting mold 100, which is located below the die casting extrusion device along a first direction. A first guide sleeve 91 is detachably connected to the die casting mold 100, and a second guide sleeve 92 is detachably connected to the die casting mold 100.

[0053] In this embodiment, the first guide sleeve 91 and the second guide sleeve 92 are detachably connected to the body of the die-casting mold, which facilitates the replacement of the first guide sleeve and the second guide sleeve and improves the convenience of maintenance of the die-casting production line.

[0054] In this embodiment, the specific structures of the first extrusion component and the second extrusion component can be various implementation methods and combinations thereof in the foregoing embodiments.

[0055] In this specific embodiment, the first extrusion assembly includes a first driving member, and the second extrusion assembly includes a second driving member.

[0056] The first driving member has a first piston pressing portion 615 at its upper end along the first direction. The radially outer peripheral sidewall of the first piston pressing portion 615 is slidably connected to the inner peripheral wall 111 of the first cylinder, and a seal is formed between the radially outer peripheral sidewall of the first piston pressing portion 615 and the inner peripheral wall 111 of the first cylinder. The first driving member 61 has a first piston connector 613 at its lower end along the first direction. The first piston connector 613 is located below the first piston pressing portion 615 along the first direction, and the end of the first piston connector 613 away from the first piston pressing portion 615 is connected to the first pressing rod 31.

[0057] The second extrusion assembly includes a second driving member, the upper end of which along the first direction has a second piston extrusion portion 625, the radial outer peripheral sidewall of the second piston extrusion portion 625 is slidably connected to the inner peripheral wall 121 of the second cylinder, and there is a seal between the radial outer peripheral sidewall of the second piston extrusion portion 625 and the inner peripheral wall 121 of the second cylinder.

[0058] The first extrusion rod 31 has a first extrusion support 311 at its upper end along the first direction. The first extrusion support 311 is connected to the lower end of the first drive member along the first direction. The end of the first extrusion support 311 away from the first drive member is connected to the first extrusion part 312.

[0059] The second extrusion rod 32 has a second extrusion support 321 at its upper end along the first direction. The second extrusion support 321 is connected to the lower end of the second drive member along the first direction. The end of the second extrusion support 321 away from the second drive member is connected to the second extrusion part 322.

[0060] In the extrusion state, hydraulic oil is injected into the first cylinder 11 and enters the first chamber 114. The hydraulic oil compresses the first driving member to move downward in the first direction. The first driving member drives the first extrusion rod 31 to move downward in the first direction. The first extrusion end 3120 of the first extrusion rod 31 extrudes the first part of the casting to be extruded. Hydraulic oil is injected into the second cylinder 12 and enters the second chamber 124. The hydraulic oil compresses the second driving member to move downward in the first direction. The second driving member drives the second extrusion rod 32 to move downward in the first direction. The second extrusion end 3220 of the second extrusion push rod extrudes the second part of the casting to be extruded.

[0061] In this embodiment, during the operation of the die-casting production line, the first extrusion end 3120 changes from being within the first guide cavity 913 of the first guide sleeve 91 to having its height level with or below the first guide end 912 of the first guide sleeve 91. That is, the first extrusion end changes from being within the height space between the first guide tip 911 and the first guide end 912 of the first guide sleeve 91 to being level with the first guide end 912 or at the lower end of the first guide end 912 along the first direction. After extrusion is completed, the first extrusion end 3120 returns to the first guide cavity 913 of the first guide sleeve 91, i.e., within the height space between the first guide tip 911 and the first guide end 912. Along the first direction, the first guide tip 911 is located above the first guide end 912.

[0062] During the operation of the die-casting production line, the second extrusion end 3220 is located within the second guide cavity 923 of the second guide sleeve 92, and within the height space between the second guide tip 921 and the second guide end 922 of the second guide sleeve 92. As hydraulic oil is injected, the second extrusion end 3220 moves downwards along a first direction until its height is level with or below the height of the second guide end 922. Along the first direction, the second guide tip 921 is positioned above the second guide end 922. After extrusion is completed, the second extrusion end 3220 is located within the height space between the second guide tip 921 and the second guide end 922.

[0063] In this application, the first direction is defined as the height direction of the die-casting extrusion device, such as the h direction shown in the attached figure.

[0064] The above examples illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A die-casting extrusion device, characterized in that, The device includes a base (1), which has at least a first cylinder (11) and a second cylinder (12). The first cylinder (11) has a first cavity (114), and the second cylinder (12) has a second cavity (124). The die-casting extrusion device has a sidewall (13), which is located on the circumferential wall where the first cylinder (11) and the second cylinder (12) intersect. The height direction of the die-casting extrusion device is defined as a first direction, perpendicular to the first direction. The first cavity (114) is located on one side of the sidewall (13), and the second cavity (124) is located on the sidewall (124). On the other side of 13); the die-casting extrusion device includes a first extrusion assembly (110) and a second extrusion assembly (120), the first extrusion assembly (110) being located on the lower side of the first cylinder (11) along the first direction, and the second extrusion assembly (120) being located on the lower side of the second cylinder (12) along the first direction; the first extrusion assembly (110) includes a first extrusion rod (31), which is movable along the first direction; the second extrusion assembly (120) includes a second extrusion rod (32), which is movable along the first direction.

2. The die-casting extrusion device according to claim 1, characterized in that: The first extrusion assembly (110) includes a first drive member (61), which is connected to the first cylinder (11), and the first extrusion rod (31) is connected to the first drive member (61). The first drive member (61) can drive the first extrusion rod (31) to move along the first direction. The second extrusion assembly (120) includes a second drive member (62), which is connected to the second cylinder (12), and the second extrusion rod (32) is connected to the second drive member (62). The second drive member (62) can drive the second extrusion rod (32) to move along the first direction.

3. The die-casting extrusion apparatus according to claim 1 or 2, characterized in that: The first extrusion assembly (110) includes a first drive member (61), the first drive member (61) having a first piston chamber (614) communicating with the first chamber (114); the second extrusion assembly (120) includes a second drive member (62), the second drive member (62) having a second piston chamber (624) communicating with the second chamber (124); the die-casting extrusion device has an extrusion state, in which the first piston chamber (614) is filled with liquid or gas, and / or the second piston chamber (624) is filled with liquid or gas.

4. The die-casting extrusion apparatus according to claim 3, characterized in that: The first drive member (61) has a first receiving portion (611), the first piston chamber (614) is located within the first receiving portion (611), the first drive member (61) has a first piston push rod (612), the upper end of the first piston push rod (612) along the first direction is defined as a first piston sliding portion (6121), the first piston sliding portion (6121) is located in the first piston chamber (614), the first piston sliding portion (6121) is slidably connected to the inner peripheral wall of the first receiving portion (611), and the radial outer peripheral wall of the first piston sliding portion (6121) is sealed with the inner peripheral wall of the first receiving portion (611); the first extrusion rod (31) is located below the first piston push rod (612) along the first direction; and / or The second driving member (62) includes a second receiving portion (621), the second piston chamber (624) is located in the second receiving portion (621), the second driving member (62) has a second piston push rod (622), the upper end of the second piston push rod (622) along the first direction has a second piston sliding portion (6221), the second piston sliding portion (6221) is located in the second piston chamber (624), the radial outer peripheral wall of the second piston sliding portion (6221) is slidably connected to the inner peripheral wall of the second receiving portion (621), and the radial outer peripheral wall of the second piston sliding portion (6221) is sealed with the second receiving portion (621); the second extrusion rod (32) is located on the lower side of the second piston push rod (622) along the first direction.

5. The die-casting extrusion apparatus according to claim 3, characterized in that: The first extrusion rod (31) has a first extrusion drive part (313) at its upper end along the first direction. The first extrusion drive part (313) is located in the first piston cavity (614). The radial outer peripheral sidewall of the first extrusion drive part (313) is slidably connected to the inner peripheral wall of the first drive member (61). The radial outer peripheral sidewall of the first extrusion drive part (313) is at least partially sealed to the inner peripheral wall of the first drive member (61). And / or, the second extrusion rod (32) has a second extrusion drive part (323) at its upper end along the first direction. The second extrusion drive part (323) is located in the second piston cavity (624). The radial outer peripheral sidewall of the second extrusion drive part (323) is slidably connected to the inner peripheral wall of the second drive member (62). The radial outer peripheral sidewall of the second extrusion drive part (323) is at least partially sealed to the inner peripheral wall of the second drive member (62).

6. The die-casting extrusion apparatus according to claim 1 or 2, characterized in that: The first extrusion assembly (110) includes a first drive member (61), the first drive member (61) having a first piston extrusion portion (615) at its upper end along a first direction, the first piston extrusion portion (615) being located in the first cavity (114), the outer peripheral sidewall of the first piston extrusion portion (615) being slidably connected to the inner peripheral wall of the first cylinder (11), and at least partially sealed between the outer peripheral sidewall of the first piston extrusion portion (615) and the inner peripheral wall of the first cylinder (11); and / or, the second extrusion assembly includes a second drive member (62), the second drive member (62) having a second piston extrusion portion (625) at its upper end along a first direction, the radial outer peripheral sidewall of the second piston extrusion portion (625) being slidably connected to the inner peripheral wall of the second cylinder (12), and at least partially sealed between the radial outer peripheral sidewall of the second piston extrusion portion (625) and the inner peripheral wall of the second cylinder (12).

7. The die-casting extrusion apparatus according to claim 1, 2, 4, or 5, characterized in that: The die-casting extrusion device has a first guide sleeve (91), and the first extrusion rod (31) has a first extrusion portion (312) at its lower end along the first direction. The die-casting extrusion device has an extrusion state in which at least a portion of the first extrusion portion (312) is located in the first guide cavity (913) of the first guide sleeve (91), and the height of the first extrusion end (3120) of the first extrusion portion (312) along the first direction is level with or lower than the height of the first guide end (912) of the first guide sleeve (91); and / or, the die-casting extrusion device has a second guide sleeve (92), and the second extrusion rod (32) has a second extrusion portion (322) at its lower end along the first direction. The die-casting extrusion device has an extrusion state in which at least a portion of the second extrusion portion (322) is located in the second guide cavity (923) of the second guide sleeve (92), and the height of the second extrusion end (3220) of the second extrusion portion (322) along the first direction is level with or lower than the height of the second guide end (922) of the second guide sleeve (92).

8. The die-casting extrusion apparatus according to claim 1, 2, 4, or 5, characterized in that: The base (1) has a mounting portion (14) located on the upper side of the first cylinder body (11) and the second cylinder body (12) along the first direction; the first cylinder body (11) has a first inner peripheral wall (111), a first bottom wall (112), and a first connecting wall (113); the second cylinder body (12) has a second inner peripheral wall (121), a second bottom wall (122), and a second connecting wall (123); the outer peripheral side of the first bottom wall (112) is connected to the first inner peripheral wall (111), and the inner peripheral side of the first bottom wall (112) is connected to the first connecting wall (123). The first cylinder inner peripheral wall (111) includes a side wall portion (13), and the first extrusion assembly (110) is sealed to the first connecting wall (113) or the first cylinder inner peripheral wall (111); the outer peripheral side of the second bottom wall (122) is connected to the second cylinder inner peripheral wall (121), and the inner peripheral side of the second bottom wall (122) is connected to the second connecting wall (123). The second cylinder inner peripheral wall (121) includes the side wall portion (13), and the second extrusion assembly is sealed to the second cylinder inner peripheral wall (121) or the second connecting wall (123).

9. A die-casting production line, characterized in that: The device includes a die-casting extrusion apparatus, comprising a base (1), the base (1) having at least a first cylinder (11) and a second cylinder (12), the first cylinder (11) having a first cavity (114), the second cylinder (12) having a second cavity (124), the die-casting extrusion apparatus having a sidewall portion (13), the sidewall portion (13) being located on the peripheral wall where the first cylinder (11) and the second cylinder (12) intersect, the height direction of the die-casting extrusion apparatus being defined as a first direction, perpendicular to the first direction: the first cavity (114) being located on one side of the sidewall portion (13), and the second cavity (124) being located on the other side of the sidewall portion (13); the die-casting extrusion apparatus includes A first extrusion assembly (110) and a second extrusion assembly (120) are provided. The first extrusion assembly (110) is located on the lower side of the first cylinder (11) along the first direction, and the second extrusion assembly (120) is located on the lower side of the second cylinder (12) along the first direction. The first extrusion assembly (110) includes a first extrusion rod (31) which is movable along the first direction. The second extrusion assembly (120) includes a second extrusion rod (32) which is movable along the first direction. The first cylinder (11) is connected to a first fluid circulation pipe (41), and the second cylinder (12) is connected to a second fluid circulation pipe (42).

10. The die-casting production line according to claim 9, characterized in that: The die-casting extrusion device has a first guide sleeve (91), and the first extrusion rod (31) has a first extrusion part (312) at its lower end along the first direction. The die-casting extrusion device has an extrusion state in which: the first extrusion part (312) is located in the first guide cavity (913) of the first guide sleeve (91), and the height of the first extrusion end (3120) of the first extrusion part (312) along the first direction is flush with or lower than the height of the first guide end (912) of the first guide sleeve (91); and / or, the die-casting extrusion device has a second guide sleeve (92), the first... The two extrusion rods (32) have a second extrusion section (322) at their lower ends along the first direction; the die-casting extrusion device has an extrusion state in which the second extrusion section (322) is located in the second guide cavity (923) of the second guide sleeve (92), and the height of the second extrusion end (3220) of the second extrusion section (322) along the first direction is flush with or lower than the height of the second guide end (922) of the second guide sleeve (92); the die-casting production line includes a die-casting mold (100), the die-casting mold (100) is located below the die-casting extrusion device along the first direction, the first guide sleeve (91) is detachably connected to the die-casting mold (100), and the second guide sleeve (92) is detachably connected to the die-casting mold (100).

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