Metal casting mold
By introducing a spraying mechanism with transmission and rotation components into the metal casting mold, the problem of uneven spraying of the release agent was solved, and uniform spraying of the release agent in the mold cavity was achieved, thereby improving casting efficiency and casting quality.
Patent Information
- Application Number
- CN202422322747.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-09-24
AI Technical Summary
In existing technologies, manual spraying and robotic arm point spraying methods are difficult to achieve uniform spraying of release agent in the mold cavity of metal casting molds, resulting in poor casting quality and difficulty in demolding.
A spraying mechanism including a transmission component, a rotating component, and a spraying pipe was designed. The spraying pipe is driven by a motor to move and rotate along the length of the mold to ensure that the release agent is evenly sprayed into the mold cavity. The spraying pipe is automatically reset by a spring and a guide table to avoid obstruction.
It achieves uniform spraying of the release agent, improves casting efficiency, reduces equipment uptime, and ensures casting quality and ease of demolding.
Smart Images
Figure CN223476250U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of metal casting technology, and specifically relates to a metal casting mold. Background Technology
[0002] Metal casting refers to a casting method that uses a mold to inject liquid metal under natural gravity or pressure, and then cools and solidifies it. Currently, most castings with high precision requirements are cast by pressure injection.
[0003] To ensure the quality of the castings after casting and the ease of demolding, a release agent is often sprayed into the mold cavity before die casting to achieve rapid and smooth demolding after gradual cooling and solidification. Currently, common release agent spraying methods include manual spraying and robotic arm point spraying. However, the former method is prone to uneven spraying of the release agent and low efficiency, while the latter single-point spraying is difficult to effectively cover all positions of the mold cavity, thus failing to meet production needs. Utility Model Content
[0004] The purpose of this invention is to provide a metal casting mold to solve the problems mentioned in the background art.
[0005] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:
[0006] A metal casting mold includes an upper mold and a lower mold. The upper end of the lower mold is provided with a positioning post that corresponds to and matches the upper mold. The lower mold is provided with a liquid spraying mechanism at both the front and rear.
[0007] The spraying mechanism includes a transmission assembly, a rotating assembly, and a spraying pipe. The transmission assembly is located on the side of the lower mold. The rotating assembly is connected to the transmission assembly in a transmission manner. The spraying pipe is connected to the rotating assembly. The spraying pipe is connected to the liquid circuit of an external liquid supply mechanism through a flexible hose.
[0008] The rotating assembly includes a spring, a column, a mating plate, and a guide platform. The spring is mounted on the upper side of the transmission assembly via a receiving box. The column is fixedly connected to the upper end of the transmission assembly. The spray pipe is connected to the upper end of the column. The tension end of the spring is connected to the column. The mating plate is connected to the column and corresponds to the connection point between the spring and the column. The length direction of the mating plate matches the length direction of the spray pipe. The guide platform is connected to the side of the lower mold and abuts against the mating plate. The guide platform has a right-angled trapezoidal structure with its hypotenuse facing the center of the mold.
[0009] The transmission assembly includes a motor, a transmission screw, a slider, and a guide rod. The transmission screw and the guide rod are arranged in parallel and are rotatably connected to the side of the lower mold through a vertical lug. The motor is fixedly connected to one side vertical lug and its output shaft is driven by the transmission screw. The slider is threadedly connected to the transmission screw and slidably connected to the guide rod. The column is rotatably located on the upper end of the slider.
[0010] The distance between the guide platform and the center of the lower mold is greater than the distance between the alignment post and the center of the lower mold.
[0011] The extension end of the spring extends out of the opening of the receiving box at the end opposite to the lower mold.
[0012] The lower end of the spray pipe is evenly provided with several atomizing nozzles.
[0013] The width ratio of the spray pipe to the lower mold is 2:1.
[0014] This application has at least the following advantages compared to the prior art:
[0015] With the spraying mechanism, the release agent can be easily and quickly sprayed into the mold cavity during metal casting. Compared with manual spraying and single-point spraying, it is more uniform and can automatically reset and adapt without obstruction between parts. Attached Figure Description
[0016] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the structure of a metal casting mold according to the present invention.
[0018] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.
[0019] Figure 3 for Figure 2 Enlarged schematic diagram of point A in the middle.
[0020] Upper mold 1, lower mold 11, alignment post 12, spray pipe 2, spring 3, column 31, mating piece 32, guide platform 33, receiving box 34, motor 4, transmission screw 41, slider 42, guide rod 43, lug 44. Detailed Implementation
[0021] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0022] like Figure 1-3As shown, a metal casting mold includes an upper mold 1 and a lower mold 11. The upper end of the lower mold 11 is provided with a positioning post 12 that corresponds to and matches the upper mold 1. The lower mold 11 is provided with a liquid spraying mechanism at both the front and rear.
[0023] The spraying mechanism includes a transmission component, a rotating component, and a spraying pipe 2. The transmission component is located on the side of the lower mold 11. The rotating component is connected to the transmission component. The spraying pipe 2 is connected to the rotating component. The spraying pipe 2 is connected to the external liquid supply mechanism via a hose.
[0024] The rotating assembly includes a spring 3, a column 31, a mating plate 32, and a guide platform 33. The spring 3 is mounted on the upper side of the transmission assembly via a receiving box 34. The column 31 is fixedly connected to the upper end of the transmission assembly. The spray pipe 2 is connected to the upper end of the column 31. The tension end of the spring 3 is connected to the column 31. The mating plate 32 is connected to the column 31 and corresponds to the connection point between the spring 3 and the column 31. The length direction of the mating plate 32 matches the length direction of the spray pipe 2. The guide platform 33 is connected to the side of the lower mold 11 and abuts against the mating plate 32. The guide platform 33 has a right-angled trapezoidal structure with its hypotenuse facing the middle of the mold.
[0025] During metal casting, the upper mold 1 and the lower mold 11 cooperate to form a mold cavity for the molding of metal castings. Before casting, in order to ensure smooth demolding of the castings, a release agent needs to be sprayed into the mold cavity. During the mold opening stage, the transmission component in the spraying mechanism will drive the rotating component and the spraying pipe 2 to move along the length direction of the lower mold 11. In the stationary state, the spraying pipe 2 is driven by the rotating component to maintain a state parallel to the length direction of the lower mold 11.
[0026] When the transmission component drives the rotating component to move, the rotating component moves along the length direction of the lower mold 11, and at the same time generates a 90° rotation drive for the spray pipe 2, so that it gradually changes to a state perpendicular to the length direction of the lower mold 11 during the unidirectional movement. That is, at this time, the length direction of the spray pipe 2 covers the width of the lower mold 11 and moves along the length direction. At this time, the external liquid supply mechanism sprays the release agent into the mold cavity of the lower mold 11. Of course, in order to improve the demolding effect, the upper side of the spray pipe 2 can also be equipped with a corresponding nozzle, so as to spray the mold closing part of the upper mold 1.
[0027] After the mold cavity of the lower mold 11 is completely covered by the release agent and the spraying is completed, the rotating component acts on the spray pipe 2 again, causing it to flip in the opposite direction relative to the moving direction, thereby restoring it to a state parallel to the length direction of the lower mold 11, so as to avoid obstruction.
[0028] The rotating assembly's spring 3 maintains a contracted tension, meaning it always maintains a coiled tension, thus generating a rotational pull on the column 31. When the mating piece 32 is blocked by the front plane of the guide table 33, the mating piece 32 cannot drive the column 31 to flip, thus maintaining the stability of the spray pipe 2. When the transmission assembly drives the rotating assembly to move, the column 31 is pulled by the spring 3, thus maintaining a central rotational force. Therefore, the column 31 will rotate as the mating piece 32 gradually approaches the inclined surface of the guide table 33, thus changing the angle and orientation of the spray pipe 2 to meet the needs of spraying the release agent. When the mating piece 32 moves in different directions, it can achieve different orientations by using the central tension of the spring 3 and cooperating with the guide tables 33 on both sides of the lower mold 11, thus satisfying the parallel reset after spraying, eliminating the need for a single return reset by the transmission assembly, reducing equipment running time and improving efficiency.
[0029] The transmission assembly includes a motor 4, a transmission screw 41, a slider 42, and a guide rod 43. The transmission screw 41 and the guide rod 43 are arranged in parallel and are rotatably connected to the side of the lower mold 11 through a vertical lug 44. The motor 4 is fixedly connected to one side of the vertical lug 44, and its output shaft is connected to the transmission screw 41. The slider 42 is threadedly connected to the transmission screw 41 and slidably connected to the guide rod 43. The column 31 is rotatably located on the upper end of the slider 42. The motor 4 is used to provide forward driving force. The transmission screw 41, in conjunction with the limiting and guiding of the slider 42 and the guide rod 43, can drive the slider 42 to drive the rotating assembly and the spray pipe 2 to move stably as a whole. The forward and reverse driving of the motor 4 can realize the forward and reverse movement of the spray pipe 2 through the transmission screw 41.
[0030] The center distance between the guide platform 33 and the lower mold 11 is greater than the center distance between the alignment post 12 and the lower mold 11; this allows the spray pipe 2 to be reset in time to avoid collision with the alignment post 12.
[0031] The extension end of the spring 3 extends out of the opening of the receiving box 34 at one end relative to the lower mold 11; this ensures accurate centering and repositioning of the column 31.
[0032] Several atomizing nozzles are evenly provided at the lower end of the spray pipe 2.
[0033] The width ratio of the spray pipe 2 to the lower mold 11 is 2:1; this reduces the length of the spray pipe 2, thereby avoiding an increase in space requirements during the flipping process due to excessive length.
[0034] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A metal casting mold, comprising an upper mold and a lower mold, wherein the upper end of the lower mold is provided with a positioning post corresponding to and matching the upper mold, characterized in that: The lower mold is equipped with a liquid spraying mechanism at both the front and rear. The spraying mechanism includes a transmission assembly, a rotating assembly, and a spraying pipe. The transmission assembly is located on the side of the lower mold. The rotating assembly is connected to the transmission assembly in a transmission manner. The spraying pipe is connected to the rotating assembly. The spraying pipe is connected to the liquid circuit of an external liquid supply mechanism through a flexible hose. The rotating assembly includes a spring, a column, a mating plate, and a guide platform. The spring is mounted on the upper side of the transmission assembly via a receiving box. The column is fixedly connected to the upper end of the transmission assembly. The spray pipe is connected to the upper end of the column. The tension end of the spring is connected to the column. The mating plate is connected to the column and corresponds to the connection point between the spring and the column. The length direction of the mating plate matches the length direction of the spray pipe. The guide platform is connected to the side of the lower mold and abuts against the mating plate. The guide platform has a right-angled trapezoidal structure with its hypotenuse facing the center of the mold.
2. The metal casting mold according to claim 1, characterized in that: The transmission assembly includes a motor, a transmission screw, a slider, and a guide rod. The transmission screw and the guide rod are arranged in parallel and are rotatably connected to the side of the lower mold through a vertical lug. The motor is fixedly connected to one side vertical lug and its output shaft is driven by the transmission screw. The slider is threadedly connected to the transmission screw and slidably connected to the guide rod. The column is rotatably located on the upper end of the slider.
3. A metal casting mold according to claim 2, characterized in that: The distance between the guide platform and the center of the lower mold is greater than the distance between the alignment post and the center of the lower mold.
4. A metal casting mold according to claim 3, characterized in that: The extension end of the spring extends out of the opening of the receiving box at the end opposite to the lower mold.
5. A metal casting mold according to claim 4, characterized in that: The lower end of the spray pipe is evenly provided with several atomizing nozzles.
6. A metal casting mold according to claim 5, characterized in that: The width ratio of the spray pipe to the lower mold is 2:1.