Valve body shell blank forming die

Abstract

The utility model discloses a valve body shell blank forming die. The valve body shell blank forming die comprises a fixed die and an ejector pin reset mechanism. A movable mold is arranged at the upper end of the fixed mold; the ejector pin reset mechanism comprises a first sliding rod, a first sliding block, a second sliding block and an ejector pin, the first sliding rod is slidably connected to the left side of the interior of the fixed mold, the right end of the first sliding rod is fixedly connected with the first sliding block, the interior of the fixed mold is slidably connected with the second sliding block, and the right side face of the first sliding block is slidably connected with the lower surface of the second sliding block; the ejector pin reset mechanism further comprises a second spring and a pressing block, the pressing block is fixedly connected to the left side face of the first sliding rod, the second spring is fixedly connected between the pressing block and the fixed die, and the left side of the outer surface of the first sliding rod is sleeved with the second spring. And after the ejector pin separates the valve body shell blank from the forming groove, ejector pin resetting can be automatically completed, the operation steps are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a forming mold for a valve body shell blank. Background Technique

[0002] Casting molds are important tools used in industrial production to manufacture parts. According to the design requirements and dimensional accuracy of the parts, through the casting process, metals or other materials are melted and injected into the mold. After cooling and solidifying, the required shape and size can be obtained. The valve body shell blank is also manufactured through a forming mold for the valve body shell blank.

[0003] For the existing forming mold for the valve body shell blank, the aluminum block is melted at high temperature, and the high-temperature aluminum block is injected into the forming mold for the valve body shell blank. After waiting for the aluminum liquid to cool, it is taken out to complete the production of the valve body shell blank.

[0004] For the existing forming mold for the valve body shell blank, the ejector pin is moved upward by pressing it upward, so that the valve body shell blank is separated from the forming groove. Then, the ejector pin needs to be pressed downward to reset it, and the process is rather cumbersome. Therefore, we propose a forming mold for the valve body shell blank. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects, and provide a forming mold for a valve body shell blank. After the ejector pin separates the valve body shell blank from the forming groove, the ejector pin can automatically reset itself, reducing the operation steps and improving the work efficiency, and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a forming mold for a valve body shell blank, including a fixed mold and an ejector pin reset mechanism;

[0007] Fixed mold: A moving mold is provided at its upper end;

[0008] Ejector pin reset mechanism: It includes a first slide bar, a first slider, a second slider and an ejector pin. The first slide bar is slidably connected to the left side inside the fixed mold. The right end of the first slide bar is fixedly connected to the first slider. The second slider is slidably connected inside the fixed mold. The right side surface of the first slider is slidably connected to the lower surface of the second slider. The upper surface of the second slider is fixedly connected with evenly distributed ejector pins. After the ejector pins separate the valve body shell blank from the forming groove, the ejector pins can automatically reset themselves, reducing the operation steps and improving the work efficiency.

[0009] Furthermore, the ejector pin reset mechanism further includes a second spring and a pressing block. The pressing block is fixedly connected to the left side surface of the first slide bar. A second spring is fixedly connected between the pressing block and the fixed mold. The second spring is sleeved on the outer surface of the left side of the first slide bar to enable the ejector pins to complete the reset.

[0010] Further, a molding groove is formed on the upper surface of the fixed mold. Uniformly distributed core-pulling blocks are slidably connected inside the molding groove. One ends of the core-pulling blocks far from the center of the fixed mold are fixedly connected with second sliding rods. The second sliding rods are all slidably connected inside the fixed mold. One ends of the second sliding rods far from the center of the fixed mold and the fixed mold are fixedly connected with first springs. The first springs are all sleeved on the outer surfaces of the longitudinally adjacent second sliding rods, and cooperate with the molding groove to complete the molding of the blank of the valve body shell.

[0011] Further, uniformly distributed positioning grooves are formed on the upper surface of the fixed mold. Positioning columns are slidably connected inside the positioning grooves. The upper surfaces of the four positioning columns are all fixedly connected with a movable mold, for positioning and connecting the fixed mold and the movable mold.

[0012] Further, a fixed block is fixedly connected to the lower surface of the movable mold. One sides of the upper surfaces of the core-pulling blocks far from the center of the fixed mold are all provided with clamping grooves. The fixed block is installed in cooperation with the clamping grooves to enable the core-pulling blocks to move horizontally.

[0013] Further, a molding groove is also formed on the lower surface of the movable mold, providing the shape of the blank of the valve body shell for the molten aluminum.

[0014] Further, a top cover is fixedly connected to the upper surface of the movable mold. A pouring gate is formed on the upper surface of the top cover, enabling the molten aluminum to enter the molding die of the blank of the valve body shell.

[0015] Further, a bottom plate is fixedly connected to the lower surface of the fixed mold, supporting the molding die of the blank of the valve body shell.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The molding die of the blank of the valve body shell has the following advantages:

[0017] Press the pressing block to the right. The pressing block squeezes the second spring, and the second spring contracts, causing the first sliding rod to move to the right, driving the first slider to move to the right. At the same time, the second slider is squeezed. Since the intersecting surface of the first slider and the second slider is an inclined surface, the second slider moves upward, driving the ejector pin upward, enabling the solidified blank of the valve body shell to be demolded. At this time, release the pressing block, the second spring expands, and the pressing block moves to the left under the elastic force, driving the first sliding rod to move to the left to complete the reset. After the ejector pin separates the blank of the valve body shell from the molding groove, the ejector pin can complete the reset by itself, reducing the operation steps and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is an exploded view structural schematic diagram of the present utility model;

[0020] Figure 3 is a sectional structural schematic diagram of the fixed mold of the present utility model;

[0021] Figure 4 This is a schematic diagram of the top view of the fixed mold structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the oblique structure of the movable mold of the utility model.

[0023] In the figure: 1 fixed mold, 2 bottom plate, 3 movable mold, 4 ejector plate, 5 gate, 6 ejector reset mechanism, 61 spring 2, 62 pressing block, 63 slide bar 1, 64 slide bar 1, 65 slide bar 2, 66 ejector, 7 slide bar 2, 8 spring 1, 9 core pulling block, 10 molding groove, 11 positioning groove, 12 positioning column, 13 fixed block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1-5 , This embodiment provides a technical solution: a valve body shell blank forming mold, including a fixed mold 1 and an ejector pin reset mechanism 6;

[0026] Fixed mold 1: A movable mold 3 is provided at its upper end, a top cover 4 is fixedly connected to the upper surface of the movable mold 3, a gate 5 is provided on the upper surface of the top cover 4, a bottom plate 2 is fixedly connected to the lower surface of the fixed mold 1, a molding groove 10 is provided on the upper surface of the fixed mold 1, a molding groove 10 is also provided on the lower surface of the movable mold 3, and evenly distributed core-pulling blocks 9 are slidably connected inside the molding groove 10, and the ends of the core-pulling blocks 9 away from the center of the fixed mold 1 are fixedly connected to slide bars 2 7, and the slide bars 2 7 are slidably connected to the inside of the fixed mold 1, and springs 1 8 are fixedly connected between the ends of the slide bars 2 7 away from the center of the fixed mold 1 and the fixed mold 1, and the springs 1 8 are sleeved on the outer surfaces of the longitudinally adjacent slide bars 2 7, and the fixed block 13 moves downward and is inserted into the upper surface of the core-pulling block 9 The slots are opened, and the core-pulling block 9 is driven to move toward the center of the fixed mold 1 along the direction of the forming groove 10. The spring 8 is in a contracted state. When the fitting is completed, the forming groove 10 and the core-pulling block 9 form a closed valve body-shaped space. The upper surface of the fixed mold 1 is provided with evenly distributed positioning grooves 11. The interior of the positioning grooves 11 is slidably connected with positioning columns 12. The upper surfaces of the four positioning columns 12 are fixedly connected to a movable mold 3. The positioning columns 12 on the lower side of the movable mold 3 are inserted into the positioning grooves 11, so that the movable mold 3 and the fixed mold 1 are completely fitted. The lower surface of the movable mold 3 is fixedly connected with a fixed block 13. The upper surface of the core-pulling block 9 is provided with a slot on the side away from the center of the fixed mold 1, and the fixed block 13 is installed in coordination with the slot.

[0027] Ejector pin reset mechanism 6: It includes a first slide bar 63, a first slider 64, a second slider 65 and an ejector pin 66. The first slide bar 63 is slidably connected to the left side inside the fixed mold 1. The right end of the first slide bar 63 is fixedly connected to the first slider 64. The second slider 65 is slidably connected inside the fixed mold 1. The right side surface of the first slider 64 is slidably connected to the lower surface of the second slider 65. The upper surface of the second slider 65 is fixedly connected with evenly distributed ejector pins 66. The reset mechanism 6 further includes a second spring 61 and a pressing block 62. The pressing block 62 is fixedly connected to the left side surface of the first slide bar 63. A second spring 61 is fixedly connected between the pressing block 62 and the fixed mold 1. The second spring 61 is sleeved on the outer surface of the left side of the first slide bar 63. Press the pressing block 62 to the right, the pressing block squeezes the second spring 61, and the second spring 61 contracts, causing the first slide bar 63 to move to the right, driving the first slider 64 to move to the right, and at the same time squeezing the second slider 65. Since the intersecting surface of the first slider 64 and the second slider 65 is an inclined surface, the second slider 65 is caused to move upward, driving the ejector pin 66 to move upward, so that the solidified valve body shell blank is demolded. At this time, release the pressing block 62, the second spring 61 expands, and the pressing block 62 moves to the left under the elastic force, driving the first slide bar 63 to move to the left to complete the reset.

[0028] The working principle of a valve body shell blank forming mold provided by the present invention is as follows: When producing a valve body shell blank, insert the positioning post 12 on the lower side of the moving mold 3 into the positioning groove 11, so that the moving mold 3 is completely attached to the fixed mold 1. During the attachment process, the fixed block 13 moves downward and is inserted into the card slot opened on the upper surface of the core-pulling block 9, and at the same time drives the core-pulling block 9 to move towards the center of the fixed mold 1 along the direction of the forming groove 10. The first spring 8 is in a contracted state. When the attachment is completed, the forming groove 10 and the core-pulling block 9 form a closed space in the shape of a valve body. At this time, inject molten aluminum into the gate 5 so that the molten aluminum completely fills the forming groove 10. After the molten aluminum is cooled, pull the moving mold 3 upward at this time. At this time, the fixed block 13 leaves the card slot, and the first spring 8 stretches, causing the core-pulling block 9 to reset. At this time, press the pressing block 62 to the right, the pressing block squeezes the second spring 61, and the second spring 61 contracts, causing the first slide bar 63 to move to the right, driving the first slider 64 to move to the right, and at the same time squeezing the second slider 65. Since the intersecting surface of the first slider 64 and the second slider 65 is an inclined surface, the second slider 65 is caused to move upward, driving the ejector pin 66 to move upward, so that the solidified valve body shell blank is demolded. At this time, release the pressing block 62, the second spring 61 expands, and the pressing block 62 moves to the left under the elastic force, driving the first slide bar 63 to move to the left to complete the reset.

[0029] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the description and drawings of the present invention, or directly or indirectly applied to other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. A blank molding die for a valve body housing, characterized in that: It includes a fixed mold (1) and an ejector pin reset mechanism (6). Fixed mold (1): A moving mold (3) is provided at its upper end. Ejector pin reset mechanism (6): It includes a first slide bar (63), a first slider (64), a second slider (65) and ejector pins (66). The first slide bar (63) is slidably connected to the left side inside the fixed mold (1). A first slider (64) is fixedly connected to the right end of the first slide bar (63). A second slider (65) is slidably connected inside the fixed mold (1). The right side surface of the first slider (64) is slidably connected to the lower surface of the second slider (65). Uniformly distributed ejector pins (66) are fixedly connected to the upper surface of the second slider (65).

2. The blank molding die for a valve body housing according to claim 1, wherein: The ejector pin reset mechanism (6) further includes a second spring (61) and a pressing block (62). The pressing block (62) is fixedly connected to the left side surface of the first slide bar (63). A second spring (61) is fixedly connected between the pressing block (62) and the fixed mold (1). The second spring (61) is sleeved on the outer surface of the left side of the first slide bar (63).

3. A blank molding die for a valve body housing, characterized in that: A forming groove (10) is formed on the upper surface of the fixed mold (1). Uniformly distributed core-pulling blocks (9) are slidably connected inside the forming groove (10). A second slide bar (7) is fixedly connected to one end of each core-pulling block (9) away from the center of the fixed mold (1). The second slide bars (7) are all slidably connected inside the fixed mold (1). A first spring (8) is fixedly connected between one end of each second slide bar (7) away from the center of the fixed mold (1) and the fixed mold (1). The first springs (8) are all sleeved on the outer surface of the longitudinally adjacent second slide bars (7).

4. A blank molding die for a valve body housing, characterized in that: Positioning grooves (11) are uniformly distributed on the upper surface of the fixed mold (1). Positioning columns (12) are slidably connected inside the positioning grooves (11). The upper surfaces of the four positioning columns (12) are all fixedly connected to a moving mold (3).

5. A blank molding die for a valve body housing, characterized in that: A fixed block (13) is fixedly connected to the lower surface of the moving mold (3). Card slots are formed on one side of the upper surface of each core-pulling block (9) away from the center of the fixed mold (1). The fixed block (13) is installed in cooperation with the card slots.

6. A blank molding die for a valve body housing, characterized in that: A forming groove (10) is also formed on the lower surface of the moving mold (3).

7. A blank forming die for a valve body housing, characterized in that: A top cover (4) is fixedly connected to the upper surface of the moving mold (3). A pouring gate (5) is formed on the upper surface of the top cover (4).

8. A blank molding die for a valve body housing, as claimed in claim 1, wherein: A bottom plate (2) is fixedly connected to the lower surface of the fixed mold (1).

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