Mold reserving mechanism

Abstract

The utility model relates to the technical field of die casting production, in particular to a die reserving mechanism which comprises an upper die bottom plate, the lower side face of the upper die bottom plate is fixedly connected with an upper die plate through two supporting plates, two connecting pieces are fixedly connected into the upper die plate, and the two connecting pieces are distributed in a bilateral symmetry mode relative to the central axis of the upper die plate. The interiors of the two connecting pieces are fixedly connected with air cylinders and connected with die reserving assemblies, the die reserving assemblies are located at the positions of the lower ends of the connecting pieces, and each die reserving assembly comprises two movable heads, two transmission columns, a connecting plate and a push rod. The air cylinder drives the push rod to move downwards, the push rod drives the connecting plate to move downwards, the connecting plate drives the transmission column to move downwards, under the action of the connecting piece and the structure of the movable head, the movable head is gradually opened along with the downward movement of the transmission column, and the movable head and a product are fixed. And the product can be stably left on the upper template, so that the stability of the product left in the mold is greatly improved, and the mold left effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting production, in particular to a mold retention mechanism. Background Art

[0002] During the production of die-castings, there may be some redundant materials on the die-castings, and it is often necessary to punch the formed die-castings. Punching mainly cuts off the redundant parts of the die-castings after die-casting forming through specific punching equipment, so that the die-castings can obtain the required shape and size.

[0003] At present, during the production of die-castings, the punching equipment adopted does not have a stable product mold retention ability. The existing product mold retention method generally uses the friction between the cutting edge and the product after trimming to hold the product for mold retention. This method cannot ensure that the product stays stably on the upper mold. When the appearance requirements of the product are relatively high, the friction of the cutting edge on the product is small, resulting in the cutting edge being unable to retain the product and it is difficult to achieve the mold retention effect.

[0004] Therefore, it is urgent to improve the mold retention mechanism to solve the above existing problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a mold retention mechanism. The push rod is driven by a cylinder to move downward, the push rod drives the connecting plate to move downward, the connecting plate drives the transmission column to move downward. Under the action of the connecting piece and the structure of the movable head itself, as the transmission column moves downward, the movable head gradually opens, so that the movable head is fixed to the product, enabling the product to stay stably on the upper template, greatly increasing the stability of product mold retention and improving the mold retention effect.

[0006] To achieve the above purpose, the main technical solutions adopted by the utility model include: comprising an upper mold bottom plate, the lower side of the upper mold bottom plate is fixedly connected with an upper template through two support plates, two connecting pieces are fixedly connected inside the upper template, the two connecting pieces are symmetrically distributed about the central axis of the upper template, a cylinder is fixedly connected inside each of the two connecting pieces and a mold retention component is connected, the mold retention component is located at the lower end position of the connecting piece, the mold retention component includes two movable heads, two transmission columns, a connecting plate and a push rod, the movable head is rotatably connected to the lower end of the connecting piece, the two transmission columns are fixedly connected to both ends of the connecting plate, both ends of the connecting plate are respectively driven and connected to the two movable heads through the two transmission columns, the push rod is fixedly connected to the upper side of the connecting plate, and the upper end of the push rod is fixedly connected to the output end of the cylinder.

[0007] Preferably, a plurality of springs are fixedly connected to the lower side surface of the upper die bottom plate. The lower ends of the plurality of springs are fixedly connected together to form a reset plate. Four connecting rods are fixedly connected to the lower side surface of the reset plate. The four connecting rods are divided into two groups, and the lower ends of each group of connecting rods penetrate through the upper template and are fixedly connected with upper pressing blocks.

[0008] Preferably, two sliding rods are fixedly connected together on the side of the upper template close to the upper die bottom plate. The two sliding rods are symmetrically distributed left and right. The two sliding rods are both slidably connected with the reset plate. Two groups of punching knives are fixedly connected to the lower side surface of the upper template. The two groups of punching knives correspond to the two upper pressing blocks one by one and are movably arranged. The two upper pressing blocks are respectively located at the central positions of the two groups of punching knives.

[0009] Preferably, a lower die bottom plate is arranged below the upper template. Two lower cushion blocks are fixedly connected to the upper side surface of the lower die bottom plate. A product is placed on the upper side surfaces of the two lower cushion blocks together. The two lower cushion blocks correspond to the two groups of punching knives one by one and are adapted to each other.

[0010] Preferably, the two connecting pieces are respectively movably arranged corresponding to the two lower cushion blocks and the two upper pressing blocks one by one. The lower end of the connecting piece extends into the corresponding lower cushion block.

[0011] Preferably, four guide sleeves are fixedly connected to the lower side surface of the upper template. The four guide sleeves are respectively located at the four corner positions of the upper template. Four guide posts are fixedly connected to the upper side surface of the lower die bottom plate. The four guide posts correspond to the four guide sleeves one by one and are movably arranged.

[0012] Preferably, two ejector posts are symmetrically and fixedly connected to the upper side surface of the lower die bottom plate. The upper ends of the two ejector posts are both movably arranged with the product. Moving cylinders are sleeved on the outer walls of the two ejector posts. A support seat is fixedly connected to the outer wall of the moving cylinder. A pressing plate is rotatably connected to the upper end of the support seat. The lower side surface of the pressing plate is movably arranged with the product.

[0013] The utility model has at least the following beneficial effects:

[0014] 1. In the utility model, the air cylinder drives the push rod to move downward. The push rod drives the connecting plate to move downward. The connecting plate drives the transmission column to move downward. Under the action of the structure of the connecting piece and the movable head itself, as the transmission column moves downward, the movable head gradually opens, so that the movable head is fixed to the product, enabling the product to stay stably on the upper template, greatly increasing the stability of the product staying in the mold and improving the effect of staying in the mold. Description of the Drawings

[0015] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0016] Figure 1 is a schematic three-dimensional structure diagram provided by the present utility model;

[0017] Figure 2 provided by the present utility model Figure 1 is an enlarged schematic diagram of part A in

[0018] Figure 3 is a front view provided by the present utility model;

[0019] Figure 4 is a schematic diagram of the upper die bottom plate provided by the present utility model;

[0020] Figure 5 is a schematic diagram of the lower die bottom plate provided by the present utility model;

[0021] Figure 6 is a schematic diagram of the mold-retaining assembly provided by the present utility model.

[0022] In the figure, 1 is the upper die bottom plate; 101 is the support plate; 2 is the upper template; 3 is the connecting piece; 4 is the cylinder; 5 is the mold-retaining assembly; 501 is the movable head; 502 is the transmission column; 503 is the connecting plate; 504 is the push rod; 6 is the spring; 7 is the reset plate; 701 is the connecting rod; 702 is the upper pressing block; 8 is the sliding rod; 9 is the punching knife; 10 is the lower die bottom plate; 11 is the lower cushion block; 12 is the guide sleeve; 13 is the guide post; 14 is the supporting post; 1501 is the movable cylinder; 1502 is the support seat; 1503 is the pressing plate; 100 is the product. Detailed implementation manners

[0023] The following will cooperate with the accompanying drawings and embodiments to detail the implementation manners of the present application, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0024] Such as Figures 1-6As shown in the figure, the mold retention mechanism provided in this embodiment includes an upper mold bottom plate 1. The lower side of the upper mold bottom plate 1 is fixedly connected to an upper template 2 through two support plates 101. Two connecting members 3 are fixedly connected inside the upper template 2. The two connecting members 3 are symmetrically distributed about the central axis of the upper template 2. Inside each of the two connecting members 3, a cylinder 4 is fixedly connected and a mold retention assembly 5 is connected. The mold retention assembly 5 is located at the lower end position of the connecting member 3. The mold retention assembly 5 includes two movable heads 501, two transmission columns 502, a connecting plate 503, and a push rod 504. The movable head 501 is rotatably connected to the lower end of the connecting member 3. The two transmission columns 502 are fixedly connected to both ends of the connecting plate 503. Both ends of the connecting plate 503 are respectively connected to the two movable heads 501 through the two transmission columns 502 for transmission connection. The push rod 504 is fixedly connected to the upper side of the connecting plate 503. The upper end of the push rod 504 is fixedly connected to the output end of the cylinder 4. The upper mold bottom plate 1 is used to connect the moving mechanism and drive other components on the upper mold bottom plate 1 to perform mold closing and mold opening. The upper template 2 is used to drive the punching knife 9 to perform mold closing and mold opening and support and fix the connecting member 3. The mold retention assembly 5 is used to retain the punched product and leave the product on the upper template 2. When the output end of the cylinder 4 extends, it drives the push rod 504 to move downward. The push rod 504 drives the connecting plate 503 to move downward. The connecting plate 503 drives the transmission column 502 to move downward. Under the action of the self-structures of the connecting member 3 and the movable head 501, as the transmission column 502 moves downward, the movable head 501 gradually opens, and the product 100 can be left on the upper template 2.

[0025] Secondly, as shown in Figure 1 , Figure 3 and Figure 4 As shown in the figure, a plurality of springs 6 are fixedly connected to the lower side of the upper mold bottom plate 1. The lower ends of the plurality of springs 6 are commonly fixedly connected to a reset plate 7. Four connecting rods 701 are fixedly connected to the lower side of the reset plate 7. The four connecting rods 701 are divided into two groups, and the lower ends of each group of connecting rods 701 penetrate through the upper template 2 and are fixedly connected to an upper pressing block 702. Two sliding rods 8 are commonly fixedly connected to the side of the upper template 2 close to the upper mold bottom plate 1. The two sliding rods 8 are symmetrically distributed left and right. The two sliding rods 8 are both slidably connected to the reset plate 7. Two groups of punching knives 9 are fixedly connected to the lower side of the upper template 2. The two groups of punching knives 9 correspond to the two upper pressing blocks 702 one by one and are movably arranged. The two upper pressing blocks 702 are respectively located at the central positions of the two groups of punching knives 9. The springs 6 are used to provide a reaction force to the reset plate 7 during mold opening. The sliding rods 8 are used to guide the up and down sliding of the reset plate 7 to make the up and down movement of the reset plate 7 more stable. The punching knives 9 are used to cut off the redundant parts on the product 100. The upper pressing blocks 702 are used to press down the product 100 to make the product 100 more stable.

[0026] Furthermore, as shown in Figure 3 and Figure 4As shown, a lower die base plate 10 is provided at the lower position of the upper template 2. Two lower cushion blocks 11 are fixedly connected to the upper side surface of the lower die base plate 10. A product 100 is placed on the upper side surfaces of the two lower cushion blocks 11 together. The two lower cushion blocks 11 correspond to and are adapted to two groups of punching knives 9 respectively. Two connecting members 3 correspond to and are movably arranged with the two lower cushion blocks 11 and two upper pressing blocks 702 respectively. The lower end of the connecting member 3 extends into the corresponding lower cushion block 11. The lower die base plate 10 is used to support and fix the components connected to the lower die base plate 10. The lower cushion blocks 11 cooperate with the punching knives 9 to cut off the redundant parts on the product 100.

[0027] Furthermore, as Figure 3 shown, four guide sleeves 12 are fixedly connected to the lower side surface of the upper template 2. The four guide sleeves 12 are respectively located at the four corner positions of the upper template 2. Four guide posts 13 are fixedly connected to the upper side surface of the lower die base plate 10. The four guide posts 13 correspond to and are movably arranged with the four guide sleeves 12 respectively. The guide sleeves 12 cooperate with the guide posts 13 to guide the upper template 2 and the lower die base plate 10 during mold closing and limit the positions of the upper template 2 and the lower die base plate 10.

[0028] Even further, as Figure 1 and Figure 2 shown, two ejector posts 14 are symmetrically and fixedly connected to the upper side surface of the lower die base plate 10. The upper ends of the two ejector posts 14 are movably arranged with the product 100. The outer walls of the two ejector posts 14 are sleeved with movable cylinders 1501. A support seat 1502 is fixedly connected to the outer wall of the movable cylinder 1501. A pressing plate 1503 is rotatably connected to the upper end of the support seat 1502. The lower side surface of the pressing plate 1503 is movably arranged with the product 100. The ejector posts 14 are used to support the product 100. The movable cylinder 1501 limits the support seat 1502. The pressing plate 1503 is used to press and fix the product 100. The movable cylinder 1501, the support seat 1502 and the pressing plate 1503 cooperate to stabilize the product 100.

[0029] As Figures 1-6As shown in the figure, the principle of the mold retention mechanism provided in this embodiment is as follows: When the mold retention mechanism is used for mold closing, the upper mold bottom plate 1, the support plate 101, the upper template 2, and the reset plate 7 move downward. The guide sleeve 12 cooperates with the guide post 13 to position the mold closing movement. The reset plate 7 drives the connecting rod 701 and the upper pressing block 702 to move downward. When the upper pressing block 702 contacts the product 100, under the reaction force of the product 100, the reset plate 7 squeezes the spring 6. The upper template 2 drives the punching knife 9 and the connecting member 3 to move downward. The punching knife 9 cooperates with the lower cushion block 11 to cut off the excess part on the product 100. Subsequently, the output end of the cylinder 4 extends to drive the push rod 504 to move downward. The push rod 504 drives the connecting plate 503 to move downward. The connecting plate 503 drives the transmission column 502 to move downward. Under the action of the structure of the connecting member 3 and the movable head 501 itself, as the transmission column 502 moves downward, the movable head 501 gradually opens to fix the product 100. After the punching is completed, the upper mold bottom plate 1, the support plate 101, the upper template 2, and the reset plate 7 move upward. The spring 6 exerts a reaction force on the reset plate 7, the connecting rod 701, and the upper pressing block 702, so that the upper pressing block 702 moves upward later than the upper template 2. Under the action of the opened movable head 501, the product 100 moves upward with the movable head 501, and the product 100 remains on the upper mold bottom plate 1.

[0030] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but use the difference in functions of components as the criterion for distinction. As used throughout the specification and claims, the term "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve technical problems within a certain error range and basically achieve the technical effect.

[0031] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent in such a commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the element.

[0032] The above description shows and describes several preferred embodiments of the present utility model. However, as previously mentioned, it should be understood that the present utility model is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. Any changes and variations made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. A mold retention mechanism, comprising an upper mold bottom plate (1), characterized in that: The lower side of the upper die base plate (1) is fixedly connected to an upper die plate (2) through two support plates (101). Two connecting members (3) are fixedly connected inside the upper die plate (2). The two connecting members (3) are symmetrically distributed about the central axis of the upper die plate (2). Inside each of the two connecting members (3), a cylinder (4) is fixedly connected and a mold-retaining assembly (5) is connected. The mold-retaining assembly (5) is located at the lower end position of the connecting member (3). The mold-retaining assembly (5) includes two movable heads (501), two transmission columns (502), a connecting plate (503), and a push rod (504). The movable head (501) is rotatably connected to the lower end of the connecting member (3). The two transmission columns (502) are fixedly connected to both ends of the connecting plate (503). Both ends of the connecting plate (503) are respectively connected to the two movable heads (501) through the two transmission columns (502) for transmission connection. The push rod (504) is fixedly connected to the upper side of the connecting plate (503). The upper end of the push rod (504) is fixedly connected to the output end of the cylinder (4).

2. The mold retention mechanism according to claim 1, wherein: A plurality of springs (6) are fixedly connected to the lower side of the upper die base plate (1). The lower ends of the plurality of springs (6) are jointly fixedly connected to a reset plate (7). Four connecting rods (701) are fixedly connected to the lower side of the reset plate (7). The four connecting rods (701) are divided into two groups, and the lower ends of each group of connecting rods (701) penetrate through the upper die plate (2) and are fixedly connected to an upper pressing block (702).

3. The mold retention mechanism according to claim 2, wherein: Two sliding rods (8) are jointly fixedly connected to the side of the upper die plate (2) close to the upper die base plate (1). The two sliding rods (8) are symmetrically distributed left and right. The two sliding rods (8) are both slidably connected to the reset plate (7). Two groups of punching knives (9) are fixedly connected to the lower side of the upper die plate (2). The two groups of punching knives (9) are arranged in one-to-one correspondence with the two upper pressing blocks (702) and are movably arranged. The two upper pressing blocks (702) are respectively located at the central positions of the two groups of punching knives (9).

4. The mold retaining mechanism according to claim 3, characterized in that: A lower die base plate (10) is arranged below the upper die plate (2). Two lower cushion blocks (11) are fixedly connected to the upper side of the lower die base plate (10). A product (100) is placed on the upper sides of the two lower cushion blocks (11). The two lower cushion blocks (11) are in one-to-one correspondence with the two groups of punching knives (9) and are adapted to each other.

5. The mold retention mechanism according to claim 4, characterized in that: The two connecting members (3) are respectively arranged in one-to-one correspondence with the two lower cushion blocks (11) and the two upper pressing blocks (702) and are movably arranged. The lower end of the connecting member (3) extends into the corresponding lower cushion block (11).

6. The retainer mechanism according to claim 5, wherein: Four guide sleeves (12) are fixedly connected to the lower side of the upper die plate (2). The four guide sleeves (12) are respectively located at the four corner positions of the upper die plate (2). Four guide posts (13) are fixedly connected to the upper side of the lower die base plate (10). The four guide posts (13) are in one-to-one correspondence with the four guide sleeves (12) and are movably arranged.

7. The mold retention mechanism according to claim 6, characterized in that: On the upper side of the lower die base plate (10), two supporting columns (14) are symmetrically and fixedly connected. The upper ends of the two supporting columns (14) are movably arranged with the product (100). The outer walls of the two supporting columns (14) are sleeved with movable cylinders (1501). A supporting seat (1502) is fixedly connected to the outer wall of the movable cylinder (1501). The upper end of the supporting seat (1502) is rotatably connected with a pressing plate (1503). The lower side of the pressing plate (1503) is movably arranged with the product (100).

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