Mold

Abstract

This invention provides a mold in which a lower mold base is slidably disposed on a base and has a lower mold channel; a moving mold assembly is disposed on the top of a male mold rotating component to form a casting cavity for casting the workpiece; the male mold rotating component has multiple spiral casting grooves communicating with the casting cavity, the male mold rotating component passes through the lower mold channel and is rotatably disposed on the base, the outer periphery of the male mold rotating component has a spiral groove, and the lower mold base has a sliding block that slides with the spiral groove; the male mold rotating component has a male mold channel communicating with the casting cavity; the ejection assembly includes an ejector, an ejector seat, and a support seat. When the lower mold base moves away from the base, the male mold rotating component rotates relative to the base, and the support seat drives the ejector seat and ejector to move synchronously, thereby moving the workpiece away from the male mold rotating component. The above configuration reduces the risk of jamming and helps improve assembly efficiency.

Claims

1. A mold comprising: One base; one mold base The lower mold base is slidably disposed on the base and has a lower mold channel; A moving mold assembly is disposed at the top of the lower mold base; a male mold rotating component is provided, with the moving mold assembly covering the top of the male mold rotating component, together forming a casting cavity; The male mold rotating component has multiple spiral-shaped casting grooves that extend spirally around the axis of the male mold rotating component and communicate with the casting cavity; the male mold rotating component passes through the lower mold channel and is rotatably mounted on the base; the outer periphery of the male mold rotating component has a spiral groove, and the inner periphery of the lower mold base has a sliding block that slides with the spiral groove; the male mold rotating component also has a male mold channel that communicates with the casting cavity; an ejection assembly includes an ejector, an ejector seat, and a support seat. The ejector passes through the male mold channel, and the bottom of the ejector is connected to the ejector seat. The support seat is located on the side of the ejector seat away from the lower mold base, and the support seat is connected to the lower mold base through a long rod.

2. The mold as described in claim 1, wherein, The mold also includes an ejector elastic element disposed between the base and the lower mold base.

3. The mold as described in claim 2, wherein, The mold also includes an ejector guide rod disposed between the base and the lower mold base. The ejector elastic element includes a spring, which is sleeved on the ejector guide rod and its two ends respectively abut against the base and the lower mold base.

4. The mold as described in claim 3, wherein, The ejector seat has an ejection clearance channel, and the long rod passes through the ejection clearance channel. The ejector seat moves closer to or away from the lower mold base along the long rod. When the ejector seat moves closer to the lower mold base, it drives the ejector to eject a workpiece from the top surface of the lower mold base.

5. The mold as described in claim 1, wherein, The ejection assembly also includes a reset elastic element disposed between the ejector seat and the lower mold base.

6. The mold as described in claim 5, wherein, The ejector seat has a first sliding channel, the support seat has a second sliding channel, a first sliding rod is disposed on the base and passes through the first sliding channel and the second sliding channel; and / or, the ejector seat has a third sliding channel, a second sliding rod is disposed on the support seat and passes through the third sliding channel.

7. The mold as described in claim 1, wherein, The spiral groove is wrapped around the outer periphery of the male mold rotating part. The lower mold base is provided with a sliding fixing hole. The sliding block is partially inserted into the sliding fixing hole and partially located in the lower mold channel to slide and engage with the spiral groove.

8. The mold as described in claim 7, wherein, The lower mold base is provided with a first locking hole that communicates with the sliding fixing hole and extends perpendicularly thereto. The sliding block is columnar and has a second locking hole in the radial direction. A locking pin passes through the first locking hole and the second locking hole; and / or, the sliding block and the spiral groove are provided with two or three and arranged in a one-to-one correspondence.

9. The mold as claimed in claim 1, wherein, The bottom of the male mold rotating part is provided with a rotating boss, and the base is provided with a rotating groove. The rotating boss is rotatably disposed in the rotating groove. A part of a pressing part is connected to the base, and a part is located on the side of the rotating boss away from the bottom of the rotating groove, so as to limit the rotating boss from moving away from the base.

10. The mold as claimed in any one of claims 1 to 9, wherein, The moving mold assembly includes: an upper mold base; a rotating component, which includes a rotating body and a mold core disposed at one end of the rotating body, the mold core being spirally arranged in a direction away from the rotating body and inserted into the casting groove; one of the rotating body and the upper mold base is provided with a guide groove, and the other is provided with a spiral guide rail, the spiral guide rail passing through the guide groove, the rotating component moving along its own axis while rotating around its own axis; and a driving component, which is slidably connected to the upper mold base and connected to the rotating body, the driving component moving closer to or further away from the upper mold base to drive the rotating body to spiral forward or spiral backward.

11. The mold as claimed in claim 10, wherein, The drive assembly includes: a movable mold cover slidably connected to the upper mold base, the upper mold base having a movable mold channel; a connector passing through the movable mold channel, one end of which is connected to the movable mold cover and the other end of which is connected to the rotating body, the movable mold cover moving closer to or further away from the upper mold base to drive the rotating body to spiral forward or spiral backward through the connector.

12. The mold as described in claim 11, wherein, The connector includes a connecting rod, a lower end screw, and a limiting cylinder. The connecting rod includes a main body section and a connecting section. The rotating body has an arc-shaped channel extending around its own axis. The width of the arc-shaped channel is smaller than the diameter of the main body section and smaller than the outer diameter of the limiting cylinder. The connecting section passes through the arc-shaped channel, and the lower end screw passes through the limiting cylinder and is screwed into the connecting hole of the connecting section.

13. The mold as described in claim 12, wherein, The moving mold cover has a fixing hole. The connector also includes an elastic sleeve and a tension screw. The tension screw includes a threaded section, a tension section and a tension nut connected in sequence. The diameter of the tension section gradually increases in the direction close to the tension nut. The inner diameter of the elastic sleeve is smaller than the maximum diameter of the tension section and larger than the minimum diameter of the tension section. The elastic sleeve passes through the fixing hole. The tension screw passes through the elastic sleeve and is screwed into the tension screw hole of the main body section, so that the elastic sleeve is clamped between the tension section and the side wall of the fixing hole.

14. The mold as described in claim 11, wherein, The connector has three parts, which are evenly spaced about the axis of the rotating body; and / or, the mold core has at least four parts.

15. The mold as claimed in claim 11, wherein, The drive assembly also includes a moving mold elastic element, which is disposed between the moving mold cover and the upper mold base.

16. The mold as claimed in claim 11, wherein, The spiral guide rail includes a guide rail body and a connector disposed on the guide rail body. The upper mold base includes an upper limit block and a lower limit block arranged at intervals along a core-pulling direction. The lower limit block is provided with a plug groove, and the connector is inserted into the plug groove. The upper end of the guide rail body abuts against the upper limit block.

17. The mold as claimed in claim 16, wherein, The mold also includes a pusher, and the upper limit block is provided with a pusher channel. The pusher passes through the pusher channel. When the moving mold cover approaches the upper mold base, it drives the pusher to move downward so as to drive the rotating body to move downward.

18. The mold as claimed in claim 17, wherein, The pushing channel includes an upper channel and a lower channel that are connected. The diameter of the upper channel is smaller than the diameter of the lower channel. The pushing member includes an upper pushing section and a lower pushing section that are connected. The upper pushing section is located in the upper channel. When the moving mold cover moves away from the upper mold base, the lower pushing section abuts against a stepped surface between the upper channel and the lower channel to limit the rotating body from continuing to move upward.

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