Die-casting die for metal aluminum connecting sheet

Abstract

The utility model discloses a die-casting die for a metal aluminum connecting piece, which comprises a front die, a rear die, a front die core and a rear die core, the front die core is mounted on the front die, the rear die core is mounted on the rear die, the front die and the rear die can be abutted against each other, the front die core is provided with a first upper cavity, and the rear die is provided with a second upper cavity. The rear mold core is provided with a first lower cavity and a second lower cavity, the first upper cavity and the first lower cavity can be oppositely arranged, a main runner is arranged in the middle of the front mold core, the rear mold core is provided with a branch runner, a first branch runner, a second branch runner, a first excess material cavity and a second excess material cavity, the main runner is connected with the branch runner, and the second branch runner is connected with the first excess material cavity. The first branch runner and the second branch runner are respectively connected with the branch runner, the first branch runner is connected with the first lower cavity, the second branch runner is connected with the second lower cavity, the first excess material cavity is connected with the first lower cavity, and the second excess material cavity is connected with the second lower cavity.

Description

Technical Field

[0001] This utility model relates to the field of die casting mold design, and in particular to a die casting mold for a metal aluminum connecting piece. Background Technology

[0002] Die casting is a special non-cutting casting method in modern metal processing. It involves filling a mold with molten metal under high pressure and high speed, and then solidifying it under high pressure to form a casting. Die casting is suitable for aluminum molds, and many aluminum connecting pieces are often obtained through die casting.

[0003] However, in real life, some aluminum connecting pieces contain paired parts of different shapes. Existing die-casting molds can usually only form a single structure part at a time and cannot produce them in pairs, which is not very convenient. At the same time, many die-casting molds can only form one product at a time, resulting in low production efficiency.

[0004] In addition, during actual die casting, problems such as insufficient material or incompleteness are easily encountered when obtaining aluminum connecting pieces. Utility Model Content

[0005] The purpose of this invention is to provide a die-casting mold for aluminum connecting pieces, which can solve one or more of the above problems.

[0006] According to one aspect of this utility model, a die-casting mold for aluminum connecting pieces is provided, comprising a front mold, a rear mold, a front mold core, and a rear mold core.

[0007] The front mold core is mounted on the front mold, and the rear mold core is mounted on the rear mold. The front mold and the rear mold can abut against each other, and the front mold core and the rear mold core can also abut against each other. The front mold core has a first upper cavity, and the rear mold core has a first lower cavity and a second lower cavity. The first upper cavity can be arranged opposite to the first lower cavity.

[0008] The front mold core has a main runner in the middle, and the rear mold core has a branch runner, a first branch runner, a second branch runner, a first waste material cavity, and a second waste material cavity. The main runner is connected to the branch runner, the first branch runner and the second branch runner are respectively connected to the branch runner, the first branch runner is connected to the first lower cavity, and the second branch runner is connected to the second lower cavity.

[0009] The first residual material cavity is connected to the first lower mold cavity, and the second residual material cavity is connected to the second lower mold cavity.

[0010] The beneficial effects of this utility model are as follows: In this utility model, after the front mold core and the rear mold core abut against each other, the first upper cavity and the first lower cavity can form a core, and the second lower cavity can be closed to form another core. The two cores can be used for molding different parts of the aluminum connecting piece, thereby facilitating the molding of paired parts of the aluminum connecting piece in one molding process, effectively improving production efficiency. In addition, the utility model also connects the excess material cavity to each cavity, so that the material can be effectively over-injected into the cavity during injection, so as to avoid the occurrence of material shortage in the finished aluminum connecting piece and ensure the integrity of the finished aluminum connecting piece.

[0011] In some embodiments, the rear mold core is provided with a first inclined runner and a second inclined runner. The first branch runner is connected to the first lower cavity via the first inclined runner, and the second branch runner is connected to the second lower cavity via the second inclined runner. The first inclined runner is configured to slope upward from the direction of the first branch runner towards the direction of the first lower cavity, and the second inclined runner is configured to slope upward from the direction of the second branch runner towards the direction of the second lower cavity. By providing the first and second inclined runners, excess material can be discharged during product molding within the cavity enclosed by the first lower cavity and the first upper cavity, thereby improving the precision of the molded product.

[0012] In some embodiments, the rear mold core is provided with a third inclined runner and a fourth inclined runner. The first lower cavity is connected to the first excess material cavity via the third inclined runner, and the second lower cavity is connected to the second excess material cavity via the fourth inclined runner. The third inclined runner is configured to slope downwards from the direction of the first lower cavity towards the direction of the first excess material cavity, and the fourth inclined runner is configured to slope downwards from the direction of the second lower cavity towards the direction of the second excess material cavity. By providing the third and fourth inclined runners, excess material can be easily discharged from the second lower cavity during product molding, improving the precision of the molded product.

[0013] In some embodiments, the rear mold core has multiple protrusions, and the front mold core has multiple grooves. When the front mold core and the rear mold core abut against each other, the multiple protrusions are embedded into the multiple grooves one by one. Through the cooperation of the protrusions and grooves, it can be ensured that the front mold core and the rear mold core can fully abut against each other, so that they can effectively surround the cavity.

[0014] In some embodiments, the rear mold has a recess on its side and the front mold has a slot at its bottom. When the front mold and the rear mold abut against each other, the slot connects with the recess. The recess and slot facilitate the insertion of devices such as robotic arms, thereby enabling relative movement between the front and rear molds.

[0015] In some embodiments, the present invention further includes an ejector plate and a plurality of ejector pins, one end of the plurality of ejector pins being embedded in the top plate, the rear mold having a through hole, the rear mold core having a plurality of ejector pin holes, and the other end of the plurality of ejector pins being able to pass through the through hole and extend into the plurality of ejector pin holes one by one.

[0016] In some embodiments, the present invention further includes a base plate and a connecting block, one end of which is connected to the base plate and the other end of which is connected to the rear mold. The base plate, the connecting block, and the rear mold enclose a receiving space, and the ejector plate is disposed within the receiving space. The receiving space facilitates the limiting function of the movement of the ejector plate, ensuring the accuracy of the ejector plate's movement.

[0017] In some embodiments, there can be multiple first branch channels, second branch channels, first upper cavity, first lower cavity, and second lower cavity. Each first upper cavity can be connected to multiple first material filling cavities, and each second lower cavity can be connected to multiple second material filling cavities. Thus, multiple sets of aluminum connecting pieces can be easily formed in a single processing step. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a die-casting mold for an aluminum connecting piece according to one embodiment of the present invention.

[0019] Figure 2 This is a cross-sectional view of the die-casting mold for an aluminum connecting piece according to one embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the front mold core of a die-casting mold for an aluminum connecting piece according to one embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the rear mold core of a die-casting mold for a metal aluminum connecting piece according to one embodiment of the present invention.

[0022] In the diagram: 1. Front mold, 2. Rear mold, 3. Front mold core, 4. Rear mold core, 11. Slot, 21. Recess, 22. Through hole, 31. First upper cavity, 32. Main runner, 33. Groove, 41. First lower cavity, 42. Second lower cavity, 43. Protrusion, 44. Ejector hole, 401. Runner, 402. First branch runner, 403. Second branch runner, 404. First material reserve cavity, 405. Second material reserve cavity, 406. First inclined runner, 407. Second inclined runner, 408. Third inclined runner, 409. Fourth inclined runner, 20. Ejector pin, 30. Ejector plate, 40. Base plate, 50. Connecting block. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention relates to a die-casting mold for a metal aluminum connecting piece, comprising a front mold 1, a rear mold 2, a front mold core 3, and a rear mold core 4.

[0025] The front mold core 3 is fixedly mounted on the front mold 1 by bolts, and the rear mold core 4 is fixedly mounted on the rear mold 2 by bolts, so that the front mold core 3 can move with the front mold 1 and the rear mold core 4 can move with the rear mold 2. The front mold 1 and the rear mold 2 can be connected by a connecting column, so that the front mold 1 and the rear mold 2 can move relative to each other along the connecting column, so that the front mold 1 and the rear mold 2 can be closed or opened.

[0026] When the mold is opened, the front mold 1 and the rear mold 2 can separate, and at this time the front mold core 3 and the rear mold core 4 also separate; when the mold is closed, the front mold 1 and the rear mold 2 can abut together, and at this time the front mold core 3 can also abut together with the rear mold core 4.

[0027] The front mold core 3 has a first upper cavity 31 at its bottom, and the rear mold core 4 has a first lower cavity 41 and a second lower cavity 42. The first upper cavity 31, the first lower cavity 41 and the second lower cavity 42 can each be multiple. In this embodiment, the first upper cavity 31, the first lower cavity 41 and the second lower cavity 42 are preferably four.

[0028] If the four first upper cavities 31 can be respectively arranged opposite to the four first lower cavities 41, then when the front mold core 3 and the rear mold core 4 abut against each other, the four first upper cavities 31 and the corresponding four first lower cavities 41 can form four first cavities. At the same time, all the second lower cavities 42 can be closed to form four second cavities.

[0029] The front mold core 3 is provided with a main flow channel 32 in the middle, and the rear mold core 4 is provided with a branch flow channel 401, a first branch flow channel 402, a second branch flow channel 403, a first waste material cavity 404 and a second waste material cavity 405. The main flow channel 32 is connected to and communicates with the branch flow channel 401, and the first branch flow channel 402 and the second branch flow channel 403 are respectively connected to and communicate with the two sides of the branch flow channel 401.

[0030] The first branch channel 402 and the second branch channel 403 can be multiple. In this embodiment, the first branch channel 402 and the second branch channel 403 are preferably four. The four first branch channels 402 are arranged at equal intervals on one side of the branch channel 401, and the four second branch channels 403 are arranged at equal intervals on the other side of the branch channel 401.

[0031] The mold core 4 is further provided with a first inclined flow channel 406 and a second inclined flow channel 407. There can be multiple first inclined flow channels 406 and second inclined flow channels 407. In this embodiment, four first inclined flow channels 406 and two inclined flow channels 407 are preferred. The four first branch channels 402 are connected to and communicate with the four first lower cavities 41 through the four first inclined flow channels 406 respectively. The four second branch channels 403 are connected to and communicate with the four second lower cavities 42 through the four second inclined flow channels 407.

[0032] The first inclined flow channel 406 is configured to slope upward from the direction of the first branch flow channel 402 toward the direction of the first lower cavity 41, and the second inclined flow channel 407 is configured to slope upward from the direction of the second branch flow channel 403 toward the direction of the second lower cavity 42.

[0033] There can be multiple first and second material discharge cavities 404 and 405, and the rear mold core 4 is also provided with a third inclined runner 408 and a fourth inclined runner 409. The number of third inclined runners 408 is equivalent to the number of first material discharge cavities 404, and the number of fourth inclined runners 409 is equivalent to the number of second material discharge cavities 405. In this embodiment, the first material discharge cavity 404, the second material discharge cavity 405, the third inclined runner 408, and the fourth inclined runner 409 are preferably all eight.

[0034] Each first lower cavity 41 is connected to and communicates with two first waste material cavities 404 through two third oblique flow channels 408, while each second lower cavity 42 is connected to and communicates with two second waste material cavities 405 through two fourth oblique flow channels 409.

[0035] The third inclined flow channel 408 is configured to slope downward from the direction of the first lower cavity 41 toward the direction of the first residual material cavity 404, and the fourth inclined flow channel 409 is configured to slope downward from the direction of the second lower cavity 42 toward the direction of the second residual material cavity 405.

[0036] The rear mold core 4 is provided with multiple protrusions 43, and the front mold core 3 is provided with multiple grooves 33. In this embodiment, both the rear mold core 4 and the front mold core 3 are preferably four. When the front mold core 3 and the rear mold core 4 abut against each other, the four protrusions 43 are embedded into the four grooves 33 one by one.

[0037] The rear mold 2 has a recess 21 on its side and the front mold 1 has a slot 11 at its bottom. When the front mold 1 and the rear mold 2 abut against each other, the slot 11 and the recess 21 are connected and communicate with each other.

[0038] The die-casting mold for this aluminum connecting piece also includes ejector pins 20 and ejector plate 30. There are multiple ejector pins 20, and one end of each ejector pin 20 is fixedly embedded in the ejector plate 30. The rear mold 2 is provided with through holes 22, and the rear mold core 4 is also provided with multiple ejector pin holes 44. The other end of each ejector pin 20 can pass through the through holes 22 and extend into the multiple ejector pin holes 44 one by one.

[0039] The die-casting mold for this aluminum connecting piece also includes a base plate 40 and a connecting block 50. One end of the connecting block 50 is fixedly connected to the base plate 40 by screws, and the other end of the connecting block 50 is fixedly connected to the bottom of the rear mold 2 by screws. The base plate 40, the connecting block 50 and the rear mold 2 together enclose an accommodating space, and the ejector plate 30 is located in the accommodating space.

[0040] When the die-casting mold of this aluminum connecting piece is in use, the external robotic arm or other driving device can extend into the through hole 22 and engage in the recess 21, so that the driving device can be fixedly connected to the front mold 1. The driving device drives the front mold 1 to move, so that the front mold 1 and the rear mold 2 abut against each other, that is, the front mold 1 and the rear mold 2 close the mold. At this time, the front mold core 3 and the rear mold core 4 also abut against each other.

[0041] Then, molten material is injected into the main channel 32. The material flows from the main channel 32 into the branch channel 401, and then through the branch channel 401 into each of the first branch channels 402 and the second branch channels 403. After that, it flows through each of the first branch channels 402 into each of the first cavities, and through each of the second branch channels 403 into each of the second cavities. The injection can be over-injected to ensure that the first and second cavities can be effectively and completely filled, while the excess material can flow into the first surplus material cavity 404 and the second surplus material cavity 405 respectively.

[0042] After the molten material cools and solidifies, the drive device moves the front mold 1, causing the front mold 1 and the rear mold 2 to separate, that is, the front mold 1 and the rear mold 2 open. At this time, the front mold core 3 and the rear mold core 4 also separate.

[0043] The ejector plate 30 can then be moved so that the ejector pin 20 ejects the molded part located on the first lower cavity 41 and the second lower cavity 42 to obtain the required aluminum connecting piece.

[0044] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A die-casting mold for an aluminum connecting piece, characterized in that, Including the front mold, rear mold, front mold core, and rear mold core. The front mold core is mounted on the front mold, and the rear mold core is mounted on the rear mold. The front mold and the rear mold can abut against each other, and the front mold core and the rear mold core can also abut against each other. The front mold core has a first upper cavity, and the rear mold core has a first lower cavity and a second lower cavity. The first upper cavity can be arranged opposite to the first lower cavity. The front mold core has a main runner in the middle, and the rear mold core has a branch runner, a first branch runner, a second branch runner, a first waste material cavity, and a second waste material cavity. The main runner is connected to the branch runner, the first branch runner and the second branch runner are respectively connected to the branch runner, the first branch runner is connected to the first lower cavity, and the second branch runner is connected to the second lower cavity. The first residual material cavity is connected to the first lower mold cavity, and the second residual material cavity is connected to the second lower mold cavity.

2. The die-casting mold for an aluminum connecting piece according to claim 1, characterized in that, The rear mold core is provided with a first inclined runner and a second inclined runner. The first branch runner is connected to the first lower cavity through the first inclined runner, and the second branch runner is connected to the second lower cavity through the second inclined runner. The first inclined flow channel is configured to slope upward from the direction of the first branch flow channel toward the direction of the first lower cavity, and the second inclined flow channel is configured to slope upward from the direction of the second branch flow channel toward the direction of the second lower cavity.

3. The die-casting mold for an aluminum connecting piece according to claim 1, characterized in that, The rear mold core is provided with a third inclined runner and a fourth inclined runner. The first lower cavity is connected to the first waste material cavity through the third inclined runner, and the second lower cavity is connected to the second waste material cavity through the fourth inclined runner. The third inclined flow channel is configured to slope downward from the direction of the first lower cavity towards the direction of the first excess material cavity, and the fourth inclined flow channel is configured to slope downward from the direction of the second lower cavity towards the direction of the second excess material cavity.

4. The die-casting mold for an aluminum connecting piece according to claim 1, characterized in that, The rear mold core has multiple protrusions, and the front mold core has multiple grooves. When the front mold core and the rear mold core abut against each other, the multiple protrusions are embedded into the multiple grooves one by one.

5. The die-casting mold for an aluminum connecting piece according to claim 1, characterized in that, The rear mold has a recess on its side and the front mold has a slot at its bottom. When the front mold and the rear mold abut against each other, the slot connects with the recess.

6. The die-casting mold for an aluminum connecting piece according to claim 1, characterized in that, It includes an ejector plate and multiple ejector pins. One end of each ejector pin is embedded in the top plate. The rear mold has a through hole. The rear mold core has multiple ejector pin holes. The other end of each ejector pin can pass through the through hole and extend into the multiple ejector pin holes one by one.

7. The die-casting mold for an aluminum connecting piece according to claim 6, characterized in that, It includes a base plate and a connecting block. One end of the connecting block is connected to the base plate and the other end is connected to the rear mold. The base plate, the connecting block and the rear mold enclose an accommodating space, and the ejector plate is disposed within the accommodating space.

8. The die-casting mold for an aluminum connecting piece according to claim 1, characterized in that, There can be multiple first branch channels, second branch channels, first upper cavity, first lower cavity, and second lower cavity. Each first upper cavity can be connected to multiple first waste material cavities, and each second lower cavity can be connected to multiple second waste material cavities.

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