Die-casting die with multidirectional core pulling and segmented demolding functions

Abstract

The utility model relates to a multidirectional core pulling and segmented demoulding die-casting die which comprises an upper die base and a lower die base, an upper die core and a lower die core are installed between the upper die base and the lower die base, an upper cavity column is installed in the middle of the lower end of the upper die core, an inclined hole position rod which slides in an inclined mode is installed in the lower portion of the upper cavity column, and a concave cavity is formed in the upper end of the upper die base. A movable plate assembly is elastically installed in the concave cavity, a plurality of node ejector rods and a plurality of supporting rods are installed at the lower end of the movable plate assembly, a splicing block assembly is fixedly installed on the right side of the upper end of the upper mold core, the upper end of the splicing block assembly penetrates through the bottom face of the concave cavity, and the splicing block assembly comprises an upper splicing block and a lower splicing block; a driving rod sliding transversely and a driving block sliding obliquely are installed between the upper splicing block and the lower splicing block, the driving block is connected with one end of the inclined hole position rod, and one end of the driving rod is connected with a power oil cylinder installed on the right side of the upper die base. The turbocharger shell die-casting die solves the technical problems that an existing turbocharger shell die-casting die is complex in structure, difficult to form, prone to ejection deformation, prone to core pulling interference and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile turbocharger parts production, in particular to a multi -way core -pulling and segmented demoulding die -casting mould. BACKGROUND

[0002] The turbocharger shell is a core component of the engine, and the structure is extremely special. Figure 9 As shown in the figure, the turbocharger shell includes a shell body 51, the shell body 51 upper portion is provided with a cavity 52, the shell body 51 upper portion side is provided with a bend pipe gas channel 54 communicated with the cavity 52 inner wall, the inner hole of the bend pipe gas channel 54 is arc structure, the cavity 52 inner wall is also provided with a slanting hole 53, the shell body 51 lower end middle part is provided with a vertical pipe 55, the vertical pipe 55 is communicated with the cavity 52 bottom. Because of the structure of the slanting hole 53, the oil cylinder is usually arranged on the upper die holder, and the slanting hole rod is directly driven by the oil cylinder to pull the core, and some use linear motion to convert into a slanting core-pulling device, but such devices occupy a large space, and are not easy to disassemble, and the bend pipe gas channel 54 structure exists, it is difficult to use the traditional core-pulling structure to assist forming, leading to product forming difficulty, and the cavity 52 opening and the vertical pipe 55 lower end port are prone to demolding difficulty. Therefore, a die-casting mould suitable for turbocharger shell production is needed to solve the above technical problems. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem to provide a multi -way core -pulling and segmented demoulding die -casting mould, and the small -size splicing block assembly is designed, and the driving rod and the driving block cooperation structure are matched, the telescopic of the slanting hole rod in the lower part of the upper cavity column is realized, and the end of the slanting hole rod is used for assisting the forming of the inner side slanting hole, the point top rod, the support rod and the elastically installed movable plate assembly component constitute the pre -pressing ejection structure, the upper cavity column is separated with the formed cavity, and the deformation problem of the cavity upper end opening is effectively reduced.

[0004] The utility model discloses a technical scheme that solves its technical problem is: provide a kind of multi-directional core-pulling and segmented demoulding die casting die, including upper die holder and lower die holder, the upper die holder and lower die holder between installation are stacked upper mould core and lower mould core, it is provided with mould cavity between the upper mould core and lower mould core, the upper mould core lower end middle part is installed with upper cavity column, the upper cavity column lower part is installed with inclined hole position rod that slants and slides, the upper end of the upper die holder is provided with recessed cavity, the recessed cavity inside is elastically installed with movable plate assembly, the movable plate assembly lower end is installed with multiple vertical node ejector rod inserted into mould cavity and multiple support rods that are topped on the upper end of lower mould core, the right side of the upper end of the upper mould core is fixedly installed with splicing block assembly, the splicing block assembly upper end penetrates recessed cavity bottom surface, the splicing block assembly includes upper splicing block and lower splicing block, the upper splicing block and lower splicing block between installation are driven rod that slides horizontally and driven block that slants and slides, the side of the driven rod one end is provided with notch, the end face of the notch is provided with inclined protrusion, the driven block slides along inclined protrusion, the driven block is connected with inclined hole position rod one end, the other end of the driven rod is connected with the power oil cylinder installed on the right side of upper die holder, the lower end of the lower mould core is installed with lower cavity column that is connected with upper cavity column, the rear side of the lower end of the lower die holder is installed with curved core-pulling device.

[0005] As a supplement to the technical scheme of the utility model, the upper splicing block and the lower splicing block are provided with horizontal sliding groove and inclined sliding groove one between them, the inclined sliding groove one is arranged obliquely upward from left to right, the upper splicing block and the lower splicing block are fixedly connected by long bolt, the bottom of the lower splicing block is provided with a one-letter section opening, and the one-letter section opening is communicated with the inclined sliding groove one.

[0006] As a supplement to the technical scheme of the utility model, the lower end of the lower die holder is provided with a die foot on each side, a top plate assembly is installed between the two die feet, an arc-shaped top plate is installed on each side of the lower cavity column at the upper end of the top plate assembly, the arc-shaped top plate penetrates the lower mould core at the upper end, and a plurality of lower ejector rods are installed on the top plate assembly at the upper end and vertically inserted into the mould cavity.

[0007] As a supplement to the technical scheme of the utility model, a plurality of limiting pins arranged vertically are installed on the movable plate assembly, the rod part of the lower end of the limiting pin is screwed with the recessed cavity bottom surface through the movable plate assembly, a spring is sleeved on the limiting pin, and the spring is located between the cap part of the upper end of the limiting pin and the upper end surface of the movable plate assembly.

[0008] As a supplement to the technical scheme of the utility model, a T-shaped clamping groove is formed on the driven block, and the cap part of the inclined hole position rod is buckled into the T-shaped clamping groove.

[0009] As a supplement to the technical scheme of the utility model, the upper die core is internally provided with a guide sleeve between the upper cavity column and the lower splicing block.

[0010] As a supplement to the technical scheme of the utility model, the bending core pulling device comprises a bending oil cylinder, an inclined sliding block and a bending core pulling block.

[0011] As a supplement to the technical scheme of the utility model, the outer side of the upper part of the elbow pipe forming insert is provided with a positioning groove, and the lower end of the upper die seat is provided with a locking block inserted into the positioning groove.

[0012] As a supplement to the technical scheme of the utility model, the upper end of the lower die seat is provided with a flow dividing cone in front of the lower die core, a pouring runner is arranged between the flow dividing cone and the die cavity, and the lower end of the upper die seat is provided with a barrel outside the flow dividing cone.

[0013] Advantages: the utility model relates to a die casting die with multidirectional core pulling and sectional demolding, and has the following advantages.

[0014] 1. A small splicing block assembly is designed, which is matched with a driving rod and a driving block matching structure to realize the expansion and contraction of the inclined hole position rod in the lower part of the upper cavity column, and the end of the inclined hole position rod is used for assisting the molding of the inner inclined hole; the splicing block assembly is fixed on the upper die core and is close to the upper cavity column, so that the stroke of the driving inclined hole position rod is shortened; and the splicing block assembly can be installed from the concave cavity, so that the operation is convenient.

[0015] 2. A bending core pulling device is designed to realize the non-pulling injury molding of the elbow pipe air duct; when the bending oil cylinder controls the inclined sliding block to slide downwardly and obliquely, the lower part of the inclined sliding block drives the bending core pulling block to make circular arc motion through the rotating shaft, so that the elbow pipe forming insert at the upper end of the bending core pulling block is pulled away from the die cavity; when the bending oil cylinder controls the inclined sliding block to slide upwardly and obliquely, the lower part of the inclined sliding block drives the bending core pulling block to make circular arc motion through the rotating shaft, so that the elbow pipe forming insert at the upper end of the bending core pulling block is inserted into the die cavity.

[0016] 3. The node top rod, the supporting rod and the elastically-installed movable plate assembly constitute a pre-pressing ejection structure, which facilitates the separation of the rear upper cavity column and the molded cavity and effectively reduces the deformation problem of the opening at the upper end of the cavity.

[0017] 4. The arc-shaped top plate structure is designed, the arc-shaped top plate is relative to traditional top rod, and its contact surface is larger, is matched with the pipe mouth shape, can effectively reduce the appearance damage when the vertical pipe is ejected. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the sectional view of the front view direction of the utility model;

[0019] Figure 2 is the sectional view of the left view direction of the utility model;

[0020] Figure 3 is the structural schematic diagram of the movable plate assembly, node top rod and product of the utility model;

[0021] Figure 4 is the structural schematic diagram of the upper cavity column, splicing block assembly, power oil cylinder and driving rod of the utility model;

[0022] Figure 5 is the structural schematic diagram of the inclined hole position rod, upper splicing block and driving rod of the utility model;

[0023] Figure 6 is the structural schematic diagram of the driving rod of the utility model;

[0024] Figure 7 is the structural schematic diagram of the bending pipe forming insert of the utility model;

[0025] Figure 8 is the structural schematic diagram of the splicing block assembly of the utility model;

[0026] Figure 9 is the structural schematic diagram of the production product of the utility model;

[0027] Figure 10 is the structural schematic diagram of the top plate assembly, lower cavity column, arc-shaped top plate and lower top rod of the utility model.

[0028] Figure: 1, upper die holder, 2, upper die core, 3, lower die core, 4, lower die holder, 5, cavity, 6, movable plate assembly, 7, upper cavity column, 8, inclined hole position rod, 9, concave cavity, 10, splicing block assembly, 11, coupling, 12, power oil cylinder, 13, oil cylinder fixing frame, 14, lower cavity column, 15, cooling pipeline, 16, arc top plate, 17, die foot, 18, top plate assembly, 19, upper splicing block, 20, lower splicing block, 21, driving rod, 22, guide sleeve, 23, straight cut, 24, driving block, 25, inclined protrusion, 26, notch, 27, connecting head, 28, T-shaped clamping groove, 29, node top rod, 30, limit pin, 31, spring, 32, curved oil cylinder, 33, support plate, 34, inclined sliding block, 35, rotating shaft, 36, straight through hole, 37, curved core-pulling block, 38, bent pipe forming insert, 39, locking block, 40, positioning groove, 41, flow dividing cone, 42, barrel, 43, long bolt, 44, horizontal sliding groove, 45, inclined sliding groove one, 46, support rod, 47, inclined sliding groove two, 48, arc sliding groove, 49, arc protrusion, 50, long protrusion, 51, shell main body, 52, cavity, 53, inclined internal hole, 54, bent pipe air channel, 55, vertical pipe, 56, lower ejector pin. DETAILED DESCRIPTION

[0029] The utility model will be further described below in connection with specific embodiments. It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the claims attached to the present application.

[0030] The embodiment of the utility model relates to a multi-directional core-pulling and segmented demolding die-casting die, such as Figures 1-10As shown, including the upper die seat 1 and lower die seat 4, the upper die seat 1 and lower die seat 4 between the installation of the upper and lower stacked upper mold core 2 and lower mold core 3, the upper mold core 2 and lower mold core 3 between the setting of the mold cavity 5, the upper cavity column 7 is installed in the lower part of the upper mold core 2 middle, the oblique hole position rod 8 is installed in the lower part of the upper cavity column 7, the recess 9 is opened in the upper end of the upper die seat 1, the movable plate assembly 6 is elastically mounted in the recess 9, the movable plate assembly 6 is installed at the lower end of the plurality of vertical insertion node top rod 29 in the mold cavity 5 and the plurality of support rod 46 on the upper end of the lower mold core 3, the splicing block assembly 10 is fixedly installed on the right side of the upper end of the upper mold core 2, the splicing block assembly 10 penetrates the bottom surface of the recess 9, the splicing block assembly 10 includes the upper splicing block 19 and the lower splicing block 20, the driving rod 21 and the driving block 24 are installed between the upper splicing block 19 and the lower splicing block 20, the driving rod 21 is opened in the side edge of one end of the recess 26, the end surface of the recess 26 is provided with an inclined protrusion 25, the driving block 24 slides along the inclined protrusion 25, the driving block 24 is connected with one end of the oblique hole position rod 8, the other end of the driving rod 21 is connected with the power oil cylinder 12 installed on the right side of the upper die seat 1, the lower cavity column 14 is installed on the upper end of the lower mold core 3 and is connected with the upper cavity column 7, the curved core pulling device is installed on the rear side of the lower end of the lower die seat 4.

[0031] When the power oil cylinder 12 controls the driving rod 21 to slide to the right, the inclined protrusion 25 of one end of the driving rod 21 drives the driving block 24 and the oblique hole position rod 8 to slide upwardly, so that the oblique hole position rod 8 is retracted into the lower part of the upper cavity column 7; when the power oil cylinder 12 controls the driving rod 21 to slide to the left, the inclined protrusion 25 of one end of the driving rod 21 drives the driving block 24 and the oblique hole position rod 8 to slide downwardly, so that the oblique hole position rod 8 is extended out of the lower part of the upper cavity column 7, and the end of the oblique hole position rod 8 is used for assisting the molding of the inclined inner hole 53.

[0032] The small splicing block assembly 10 is designed, and the driving rod 21 and the driving block 24 are matched with the cooperation structure, so that the oblique hole position rod 8 is telescopic in the lower part of the upper cavity column 7, and the end of the oblique hole position rod 8 is used for assisting the molding of the inner inclined hole; the splicing block assembly 10 is fixed on the upper mold core, is close to the upper cavity column 7, can shorten the stroke of the driving oblique hole position rod 8; and when the splicing block assembly 10 is installed, the recess 9 can be installed, and the operation is convenient.

[0033] As the structure of the splicing block assembly 10, the horizontal sliding groove 44 and the inclined sliding groove one 45 are arranged between the upper splicing block 19 and the lower splicing block 20, the inclined sliding groove one 45 is arranged upwardly and obliquely from left to right, which is used for the oblique sliding of the driving block 24, the horizontal sliding groove 44 is used for the horizontal sliding of the driving rod 21, the upper splicing block 19 and the lower splicing block 20 are connected and fixed by the long bolt 43, and the lower end of the long bolt 43 is screwed with the bottom surface of the cavity 9, so that the upper splicing block 19 and the lower splicing block 20 are fixed with the bottom surface of the cavity 9, the bottom of the lower splicing block 20 is provided with the one-word section opening 23, which is communicated with the inclined sliding groove one 45; the one-word section opening 23 is designed as the operation space for the connection of the inclined hole rod 8 and the driving block 24, which facilitates assembly; the splicing structure of the upper splicing block 19 and the lower splicing block 20 greatly reduces the processing difficulty of the horizontal sliding groove 44 and the inclined sliding groove one 45, and also facilitates the assembly of the driving block 24, the driving rod 21 and the inclined hole rod 8.

[0034] As the connection scheme of the power oil cylinder 12, the power oil cylinder 12 is fixedly installed on the right side of the upper mold base 1 through the oil cylinder fixing frame 13, and the other end of the driving rod 21 is provided with the connecting head 27, which is connected with the end of the piston rod of the power oil cylinder 12 through the shaft coupling 11.

[0035] As the preferred scheme of product ejection, the lower end of the lower mold base 4 is provided with a mold foot 17 on each side, and the top plate assembly 18 is installed between the two mold feet 17, the upper end of the top plate assembly 18 is provided with an arc-shaped top plate 16 on each side of the lower cavity column 14, the upper end of the arc-shaped top plate 16 penetrates the lower mold core 3, and the two arc-shaped top plates 16 are used for the top of the pipe opening at the bottom of the vertical pipe 55, the contact surface of the arc-shaped top plate 16 is larger than that of the traditional top rod, and is matched with the shape of the pipe opening, which can effectively reduce the damage to the shape of the casting during ejection; the upper end of the top plate assembly 18 is also provided with a plurality of lower top rods 56 vertically inserted into the mold cavity 5, which are used for the top of other parts except the vertical pipe 55.

[0036] As the cooling scheme of the lower cavity column 14, the bottom of the lower mold base 4 is provided with the cooling pipeline 15, which is vertically arranged, and the upper end of the cooling pipeline 15 extends into the upper part of the lower cavity column 14, which is used for rapid cooling of the lower cavity column 14.

[0037] As the structure of the elastic installation of the movable plate assembly 6, the movable plate assembly 6 is provided with a plurality of limiting pins 30 arranged vertically, the rod part of the lower end of the limiting pin 30 penetrates the movable plate assembly 6 and is screwed with the bottom surface of the cavity 9, the limiting pin 30 is sleeved with the spring 31, and the spring 31 is located between the cap part of the upper end of the limiting pin 30 and the upper end surface of the movable plate assembly 6.

[0038] As a preferred scheme of the inclined hole position rod 8, a T-shaped clamping groove 28 is formed on the driving block 24, and the cap part of the inclined hole position rod 8 is buckled into the T-shaped clamping groove 28 to realize clamping and fixing of the two; a guide sleeve 22 is installed between the upper cavity column 7 and the lower splicing block 20 inside the upper mold core 2, the guide sleeve 22 is sleeved on the inclined hole position rod 8, and the guide sleeve 22 ensures accurate sliding of the inclined hole position rod 8 along a preset inclined angle, thereby avoiding deviation.

[0039] As a structure of the bending core pulling device, the bending core pulling device is used for forming a bent pipe gas channel of a turbocharger shell, and the bending core pulling device comprises a bending oil cylinder 32, an inclined sliding block 34 and a bending core pulling block 37. Two support plates 33 are installed side by side at the rear side of the lower end of the lower mold base 4, the inclined sliding block 34 and the bending core pulling block 37 are installed between the two support plates 33 to slide obliquely and to slide in an arc shape respectively, the bending oil cylinder 32 is installed at the upper end of the two support plates 33 to drive the inclined sliding block 34 to slide, the inclined sliding block 34 slides obliquely downward from the rear to the front, the bending core pulling block 37 is provided with a slot-shaped through hole 36 at the lower part, the slot-shaped through hole 36 is installed with a rotating shaft 35 connected with the inclined sliding block 34, the bending core pulling block 37 is installed with a bent pipe forming insert 38 at the upper end, one end of the bent pipe forming insert 38 is inserted into the mold cavity 5 and is butted with the side edge of the upper cavity column 7, and the shape of the end of the bent pipe forming insert 38 is matched with the bent pipe gas channel 54.

[0040] When the bending oil cylinder 32 controls the inclined sliding block 34 to slide obliquely downward, the lower part of the inclined sliding block 34 drives the bending core pulling block 37 to move in an arc shape through the rotating shaft 35, so that the bent pipe forming insert 38 at the upper end of the bending core pulling block 37 is pulled away downward from the mold cavity 5; when the bending oil cylinder 32 controls the inclined sliding block 34 to slide obliquely upward, the lower part of the inclined sliding block 34 drives the bending core pulling block 37 to move in an arc shape through the rotating shaft 35, so that the bent pipe forming insert 38 at the upper end of the bending core pulling block 37 is inserted into the mold cavity 5 upward.

[0041] The inner wall of the support plate 33 is provided with an inclined sliding groove two 47 and an arc-shaped sliding groove 48, the side edge of the inclined sliding block 34 is provided with a long strip-shaped protrusion 50 matched with the inclined sliding groove two 47, the long strip-shaped protrusion 50 and the inclined sliding groove two 47 are matched to realize stable oblique sliding of the inclined sliding block 34, and the side edge of the bending core pulling block 37 is provided with an arc-shaped protrusion 49 matched with the arc-shaped sliding groove 48, the arc-shaped protrusion 49 and the arc-shaped sliding groove 48 are matched to realize stable arc-shaped sliding of the bending core pulling block 37.

[0042] As a preferred scheme of the bent pipe forming insert 38, the outer side of the upper part of the bent pipe forming insert 38 is provided with a positioning groove 40, and the lower end of the upper mold base 1 is installed with a locking block 39 inserted into the positioning groove 40; when the mold is closed, the locking block 39 is inserted into the positioning groove 40 to fix the bent pipe forming insert 38, so that loosening in the forming process is avoided.

[0043] The lower die base 4 upper end is located in front of the lower die core 3 and is provided with a flow divider cone 41, and a pouring runner is arranged between the flow divider cone 41 and the mold cavity 5, and the upper die base 1 lower end is provided with a barrel 42 outside the flow divider cone 41.

[0044] When the turbocharger housing needs to be produced, first, the whole mold is installed on the die casting machine, then debugging is performed, after the debugging is completed, the upper die base 1 and the lower die base 4 and the upper die core 2 and the lower die core 3 are closed, the lower cavity column 14 and the upper cavity column 7 are connected together, the upper cavity column 7 is used for assisting the forming of the cavity 52, the lower cavity column 14 is used for assisting the forming of the inner wall of the vertical pipe 55, the elbow pipe forming insert 38 end is connected with the side edge of the upper cavity column 7, the elbow pipe forming insert 38 end is used for assisting the forming of the inner wall of the elbow pipe air duct 54, the inclined hole position rod 8 end extends to the lower part outside the upper cavity column 7, the inclined hole position rod 8 end is used for assisting the forming of the inclined hole 53, the support rod 46 of the movable plate assembly 6 lower end is on the upper end of the lower die core 3, there is a certain movement gap between the movable plate assembly 6 and the bottom surface of the concave cavity 9, and the spring 31 is in a compressed state, then the barrel 42 is used to inject the molten metal melt into the mold cavity 5 in a molten state, and the die casting machine is used to keep pressure in the mold, after the product is completed, the power oil cylinder 12 controls the driving rod 21 to slide to the right, the inclined protrusion 25 at one end of the driving rod 21 drives the driving block 24 and the inclined hole position rod 8 to slide obliquely upward, so that the end of the inclined hole position rod 8 is retracted into the lower part of the upper cavity column 7, the end of the inclined hole position rod 8 is separated from the formed inclined hole 53, then the mold is opened, the upper die base 1 and the upper die core 2 move upward and are separated from the lower die base 4 and the lower die core 3, due to the action of the spring 31, the support rod 46 of the movable plate assembly 6 lower end and the node top rod 29 remain stationary, the lower ends of the plurality of node top rods 29 are respectively on the node positions at the upper end openings of the cavity 52, which facilitates the separation of the upper cavity column 7 from the formed cavity 52 and effectively reduces the deformation problem at the upper end openings of the cavity 52, after the upper cavity column 7 is separated from the formed cavity 52, the movable plate assembly 6 moves upward together with the upper die base 1 and the upper die core 2, then the bending oil cylinder 32 controls the inclined sliding block 34 to slide obliquely downward, the lower part of the inclined sliding block 34 drives the bending core pulling block 37 to make circular arc motion through the rotating shaft 35, so that the elbow pipe forming insert 38 at the upper end of the bending core pulling block 37 is pulled away downward from the mold cavity 5, the elbow pipe forming insert 38 is separated from the inner wall of the elbow pipe air duct 54, and finally the top plate assembly 18 is started, the arc-shaped top plate 16 and the lower top rod 56 eject the product from the mold cavity 5.

[0045] In the description of the utility model, it is understood that the orientation words such as '' front, back, up, down, left, right '' '' horizontal, vertical, perpendicular, horizontal '' and '' top, bottom '' and the like indicated orientation or positional relationship generally based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply that the device or element indicated must have a particular orientation or be constructed and operated in a particular orientation, therefore can not be understood as the limitation of the protection scope of the utility model;The orientation words '' inside, outside '' refer to the inside and outside relative to the contour of each component.

[0046] For the convenience of description, spatial relative terms can be used here, such as '' above'', '' above'', '' upper surface'', '' upper '' and the like, to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawing. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawing. For example, if the device in the drawing is inverted, the device described as '' above '' or '' above '' other devices or structures will be positioned '' below '' or '' below '' other devices or structures. Thus, the example term '' above '' can include both '' above '' and '' below '' orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used here is interpreted accordingly.

[0047] In addition, it should be noted that the use of '' first'', '' second '' and the like to limit parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore can not be understood as the limitation of the protection scope of the utility model.

[0048] The multi-directional core-pulling and segmented demolding die provided by the application is described in detail above, the principles and implementation modes of the application are described in this paper, and the above example is only used to help understand the method and core idea of the application. Meanwhile, for those skilled in the art, according to the idea of the application, the specific implementation mode and application range will be changed, and the above description should not be understood as the limitation of the application.

Claims

1. A die-casting mold with multi-directional core pulling and segmented demolding, comprising an upper mold base (1) and a lower mold base (4), wherein an upper mold core (2) and a lower mold core (3) are installed between the upper mold base (1) and the lower mold base (4), and a mold cavity (5) is provided between the upper mold core (2) and the lower mold core (3), characterized in that: The upper mold core (2) lower end middle part is provided with an upper cavity column (7), the upper cavity column (7) lower part is provided with an inclined sliding slotted hole position rod (8), the upper mold base (1) upper end is provided with a concave cavity (9), the concave cavity (9) is elastically provided with a movable plate assembly (6), the movable plate assembly (6) lower end is provided with a plurality of vertical node ejector pins (29) inserted into the mold cavity (5) and a plurality of support rods (46) supported on the upper end of the lower mold core (3), the upper end of the upper mold core (2) is fixedly provided with a splicing block assembly (10), the splicing block assembly (10) upper end penetrates the bottom surface of the concave cavity (9), the splicing block assembly (10) includes an upper splicing block (19) and a lower splicing block (20), the upper splicing block (19) and the lower splicing block (20) are provided with a transversely sliding drive rod (21) and an obliquely sliding drive block (24), the side edge of one end of the drive rod (21) is provided with a notch (26), the end surface of the notch (26) is provided with an inclined protrusion (25), the drive block (24) slides along the inclined protrusion (25), one end of the drive block (24) is connected with the slotted hole position rod (8), the other end of the drive rod (21) is connected with the power oil cylinder (12) installed on the right side of the upper mold base (1), the lower end of the lower mold core (3) is provided with a lower cavity column (14) butted with the upper cavity column (7), the rear side of the lower end of the lower mold base (4) is provided with a curved core pulling device.

2. A multi- core draw and segmented draw die-casting mould according to claim 1, characterised in that: The upper splicing block (19) and the lower splicing block (20) are provided with a horizontal sliding slot (44) and an inclined sliding slot (45), the inclined sliding slot (45) is arranged obliquely upward from left to right, the upper splicing block (19) and the lower splicing block (20) are connected and fixed by a long bolt (43), the bottom of the lower splicing block (20) is provided with a one-word section (23), the one-word section (23) is communicated with the inclined sliding slot (45).

3. A multi- core draw and segmented draw die-casting mould according to claim 1, characterised in that: The lower end of the lower mold base (4) is provided with a mold foot (17) on each side, the two mold feet (17) are provided with a top plate assembly (18), the top plate assembly (18) upper end is provided with an arc-shaped top plate (16) on each side of the lower cavity column (14), the arc-shaped top plate (16) upper end penetrates the lower mold core (3), the top plate assembly (18) upper end is further provided with a plurality of lower ejector pins (56) vertically inserted into the mold cavity (5).

4. A multi- core draw and segmented draw die-casting mould according to claim 1, characterised in that: The movable plate assembly (6) is provided with a plurality of vertical limiting pins (30), the rod part of the lower end of the limiting pin (30) penetrates the movable plate assembly (6) and is threadedly connected with the bottom surface of the concave cavity (9), the limiting pin (30) is sleeved with a spring (31), the spring (31) is located between the cap part of the upper end of the limiting pin (30) and the upper end surface of the movable plate assembly (6).

5. A multi- core draw and segmented draw die-casting mould according to claim 1, characterised in that: The drive block (24) is provided with a T-shaped clamping groove (28), the cap part of the slotted hole position rod (8) is buckled into the T-shaped clamping groove (28).

6. A multi- core draw and segmented draw die-casting mould according to claim 1, characterised in that: The upper mold core (2) is internally provided with a guide sleeve (22) between the upper cavity column (7) and the lower splicing block (20), and the guide sleeve (22) is sleeved on the inclined hole rod (8).

7. A multi- core draw and segmented draw die-casting mould according to claim 1, characterised in that: The bending core pulling device comprises a bending oil cylinder (32), an inclined sliding block (34) and a bending core pulling block (37), the rear side of the lower end of the lower mold base (4) is provided with two support plates (33) in parallel, the inclined sliding block (34) and the bending core pulling block (37) are arranged between the two support plates (33) and slide in an inclined and circular arc manner, the upper end of the two support plates (33) is provided with the bending oil cylinder (32) for driving the sliding of the inclined sliding block (34), the inclined sliding block (34) slides downward in an inclined manner from the rear to the front, the bending core pulling block (37) is provided with a slot-shaped through hole (36) in the lower part, the slot-shaped through hole (36) is provided with a rotating shaft (35) connected with the inclined sliding block (34), the upper end of the bending core pulling block (37) is provided with a bent pipe forming insert (38), one end of the bent pipe forming insert (38) is inserted into the mold cavity (5) and is butted against the side of the upper cavity column (7).

8. A multi- core draw and segmented draw die-casting mould according to claim 7, characterised in that: The outer side of the upper part of the bent pipe forming insert (38) is provided with a positioning groove (40), and the lower end of the upper mold base (1) is provided with a locking block (39) inserted into the positioning groove (40).

9. A multi- core draw and segmented draw die-casting mould according to claim 1, characterised in that: The upper end of the lower mold base (4) is provided with a flow dividing cone (41) in front of the lower mold core (3), a pouring runner is arranged between the flow dividing cone (41) and the mold cavity (5), and the lower end of the upper mold base (1) is provided with a barrel (42) sleeved outside the flow dividing cone (41). The outer side of the upper part of the bent pipe forming insert (38) is provided with a positioning groove (40), and the lower end of the upper mold base (1) is provided with a locking block (39) inserted into the positioning groove (40). The upper end of the lower mold base (4) is provided with a flow dividing cone (41) in front of the lower mold core (3), a pouring runner is arranged between the flow dividing cone (41) and the mold cavity (5), and the lower end of the upper mold base (1) is provided with a barrel (42) sleeved outside the flow dividing cone (41).

Images