Shell die-casting device
By forming a guide channel through the cooperation of the slider and the feed cylinder, the flow divider cone is eliminated, which solves the problems of complex structure and high cost of the existing shell die-casting device and realizes simple and low-cost die-casting liquid guidance and shell forming.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-10
AI Technical Summary
Existing die-casting equipment for shells is complex in structure, large in size, and has high manufacturing cost due to the inclusion of a flow divider cone.
The guide channel is directly formed by the cooperation of the slider and the feed cylinder, eliminating the flow divider cone. The guide channel is formed by the front end face of the slider and the rear end face of the feed cylinder, which simplifies the structure and reduces the volume.
It achieves smooth flow of die-casting liquid, has a simple structure, small size, and low manufacturing cost, thereby improving production efficiency and reducing costs.
Smart Images
Figure CN223981168U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to die casting technical field especially relates to a casing die casting device. BACKGROUND
[0002] Part casing die casting device includes front mould base, rear mould base, feed cylinder, sliding block and shunt cone, front mould base is equipped with front mould, rear mould base is equipped with rear mould, and first cavity is formed between front mould and rear mould, sliding block is installed in rear mould along left and right direction, and second cavity is formed between sliding block and one side of rear mould, second cavity is communicated with first cavity, feed cylinder is arranged in front mould base, shunt cone is arranged in rear mould base and extends into feed cylinder, and flow guide channel is formed between the outer side wall of shunt cone and the inner side wall of feed cylinder, and the injection of die casting liquid is pressed into feed cylinder, and the die casting liquid flows into first cavity and second cavity through flow guide channel, thereby forming casing by die casting. The existing casing die casting device is relatively complex in structure, and the overall volume is large, and the manufacturing cost is high due to the setting of shunt cone. SUMMARY
[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, the utility model provides a casing die casting device, which does not need to set shunt cone, but directly forms flow guide channel through the cooperation of sliding block and feed cylinder, and is simpler in structure, smaller in overall volume and lower in manufacturing cost.
[0004] The casing die casting device according to the utility model embodiment comprises a front mould base, a rear mould base, a feed cylinder and a sliding block, the front mould base is provided with a front mould, the rear mould base is provided with a rear mould, a first cavity with a right side opening is formed between the front mould and the rear mould, the feed cylinder is arranged in the front mould base, a notch is formed in the left side wall of the rear end of the feed cylinder, the sliding block is slidably installed in the front mould base or the rear mould base along the left and right directions, the sliding block is located at the right side of the rear mould and forms a second cavity with a front end opening between the sliding block and the rear mould, the right side of the first cavity and the front end of the second cavity are butted, wherein the front end surface of the sliding block is attached to the rear end surface of the feed cylinder, the flow guide channel is formed between the front end surface of the sliding block and the surface of the notch, and the flow guide channel is communicated with the right side of the first cavity and the front end of the second cavity.
[0005] The casing die casting device according to the utility model embodiment has at least the following beneficial effects:
[0006] During die casting, molten die casting liquid is injected into the feed cylinder. Because the front end face of the slider is in contact with the rear end face of the feed cylinder, a notch is formed on the left side wall of the rear end of the feed cylinder. Therefore, the molten die casting liquid can only enter the guide channel formed between the front end face of the slider and the surface of the notch. It then flows from the guide channel into the first and second mold cavities, thereby die casting to form the shell. The shell die casting device of this embodiment does not require a flow divider cone; instead, the guide channel is directly formed through the cooperation of the slider and the feed cylinder, resulting in a simpler structure, smaller overall size, and lower manufacturing cost.
[0007] According to some embodiments of the present invention, the feed cylinder has a feed hole, the front end face of the slider has a protrusion, the protrusion extends into the feed cylinder, the upper side of the protrusion is attached to the upper side of the feed hole, the lower side of the protrusion is attached to the lower side of the feed hole, there is a gap between the left side of the protrusion and the left side of the feed hole, and the slider can slide to such that the right side of the protrusion is attached to the right side of the feed hole.
[0008] According to some embodiments of the present invention, in the projection in the left-right direction, the surface of the front end of the notch is flush with the front end face of the protrusion, or the surface of the front end of the notch is located in front of the front end face of the protrusion.
[0009] According to some embodiments of the present invention, the surface of the feed hole that is abutted by the side of the protrusion extends outward from front to back, and the side of the protrusion extends outward from front to back accordingly.
[0010] According to some embodiments of the present invention, a relief groove is formed on the right side of the rear mold, the front end of the relief groove is through-hole, the slider extends into the relief groove, and the left side of the slider and the left side of the relief groove form the second cavity.
[0011] According to some embodiments of the present invention, the rear end face of the slider is in contact with the rear end face of the relief groove.
[0012] According to some embodiments of the present invention, the right side of the front mold has an extension portion, the extension portion is located in front of the relief groove, a cross flow channel is formed between the left side of the front end face of the slider and the rear end face of the extension portion, the right side of the cross flow channel is connected to the guide channel, and the left side of the cross flow channel is connected to the first cavity and the second cavity.
[0013] According to some embodiments of the present invention, in the projection in the left-right direction, the right edge of the rear end face of the extension is flush with the surface of the front end of the notch.
[0014] According to some embodiments of the present invention, the front end of the slider extends to the outside of the right side of the first cavity.
[0015] According to some embodiments of the present invention, the front mold frame has a water-cooling channel formed on the periphery of the feed cylinder.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and some advantages will become apparent from the description or may be learned by practice of the invention. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0018] Figure 1 This is a schematic diagram of the overall structure of the die-casting device for the shell according to an embodiment of the present utility model;
[0019] Figure 2 A schematic diagram showing the injection of die-casting liquid into the first and second cavities;
[0020] Figure 3 for Figure 1 Enlarged view of point A in the middle.
[0021] Icon labels:
[0022] Front mold base 100; front mold 101; extension 102; water cooling channel 103;
[0023] Rear mold base 200; rear mold 201; clearance groove 202; ejector pin 203;
[0024] Feed cylinder 300; Feed hole 301;
[0025] Slider 400; Protrusion 401;
[0026] First cavity 500;
[0027] Second cavity 600;
[0028] 700mm guide channel;
[0029] Crossflow channel 800;
[0030] Casing 900. Detailed Implementation
[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0032] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.
[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0035] The following is for reference. Figures 1 to 3 This invention describes a device for die-casting a housing according to an embodiment of the present invention.
[0036] refer to Figures 1 to 3 As shown, the die-casting device for housings according to an embodiment of the present invention includes a front mold frame 100, a rear mold frame 200, a feed cylinder 300, and a slider 400.
[0037] The front mold base 100 and the rear mold base 200 are arranged in a front-to-back direction. The front mold base 100 is equipped with a front mold 101, and the rear mold base 200 is equipped with a rear mold 201. A first cavity 500 with an opening on the right side is formed between the front mold 101 and the rear mold 201. The front mold base 100 and the rear mold base 200 can move relative to each other in the front-to-back direction, thereby driving the front mold 101 and the rear mold 201 to move relative to each other. The rear mold base 200 may be equipped with an ejector rod 203 that passes through the rear mold 201. The ejector rod 203 is connected to a hydraulic cylinder. When the die casting forms the shell 900 and the front mold 101 and the rear mold 201 are separated, the hydraulic cylinder controls the ejector rod 203 to move, thereby ejecting the shell 900 portion in the first cavity 500 to demold the shell 900 portion in the first cavity 500.
[0038] The feed cylinder 300 is located on the front mold frame 100. The axial direction of the feed cylinder 300 can extend in the front-back direction. A notch is formed on the left side wall of the rear end of the feed cylinder 300. The feed cylinder 300 is used to inject die casting liquid.
[0039] The slider 400 is slidably mounted on the front mold base 100 in the left-right direction, and also slidably mounted on the rear mold base 200 in the left-right direction. The slider 400 is located on the right side of the rear mold 201, and forms a second cavity 600 with a front opening between the slider 400 and the rear mold 201. The second cavity 600 can extend approximately in the front-back direction, and the right side of the first cavity 500 and the front end of the second cavity 600 are connected. After the die-casting liquid is injected, the slider 400 can be slightly slid to the left to make the width of the die-casting liquid in the second cavity 600 correspond to the width of the shell 900 and to expel gas. After cooling and forming the shell 900, the slider 400 can be slightly slid to the right to demold the shell 900 portion in the second cavity 600.
[0040] The front end face of the slider 400 is attached to the rear end face of the feed cylinder 300, and the front end face of the slider 400 and the surface of the notch form a guide channel 700. The guide channel 700 connects the right side of the first cavity 500 and the front end of the second cavity 600.
[0041] In this invention, during die casting, die casting liquid is injected into the feed cylinder 300. Since the front end face of the slider 400 is attached to the rear end face of the feed cylinder 300, a notch is formed on the left side wall of the rear end of the feed cylinder 300. Therefore, the die casting liquid can only enter the guide channel 700 formed between the front end face of the slider 400 and the surface of the notch. Then, it enters the first cavity 500 and the second cavity 600 from the guide channel 700, thereby die casting to form the shell 900. The shell die casting device of this embodiment does not require a flow divider cone; instead, the guide channel 700 is directly formed by the cooperation of the slider 400 and the feed cylinder 300, resulting in a simpler structure, smaller overall size, and lower manufacturing cost.
[0042] In some embodiments of this utility model, such as Figures 1 to 3 As shown, the feed cylinder 300 has a feed hole 301, and the front end face of the slider 400 has a protrusion 401. The protrusion 401 extends into the feed cylinder 300. The upper side of the protrusion 401 is attached to the upper side of the feed hole 301, and the lower side of the protrusion 401 is attached to the lower side of the feed hole 301. There is a gap between the left side of the protrusion 401 and the left side of the feed hole 301, and the slider 400 can slide to make the right side of the protrusion 401 attach to the right side of the feed hole 301.
[0043] In this embodiment, when it is necessary to inject die casting liquid, the slider 400 can be slid to the right, so that the right side of the protrusion 401 is in contact with the right side of the feed hole 301. At the same time, since the upper side of the protrusion 401 is in contact with the upper side of the feed hole 301 and the lower side of the protrusion 401 is in contact with the lower side of the feed hole 301, a sealing effect can be achieved, preventing the die casting liquid from flowing out from other directions at the rear end of the feed cylinder 300, but only flowing out from the guide channel 700 on the left side of the rear end of the feed cylinder 300 and entering the first cavity 500 and the second cavity 600, resulting in a better guiding effect.
[0044] In some embodiments of this utility model, such as Figure 3 As shown in the projection in the left-right direction, the surface of the notch front end is flush with the front end face of the protrusion 401. This arrangement allows the die-casting liquid in the feed cylinder 300 to enter the guide channel 700 more smoothly, resulting in better injection. It should be noted that the surface of the notch front end can also be located in front of the front end face of the protrusion 401, which also allows the die-casting liquid in the feed cylinder 300 to enter the guide channel 700 more smoothly, resulting in better injection.
[0045] In some embodiments of this utility model, such as Figure 3 As shown, the surface of the feed hole 301 that is contacted by the side of the protrusion 401 extends outward from front to back, and the side of the protrusion 401 correspondingly extends outward from front to back. This results in a larger contact area between the side of the protrusion 401 and the wall of the feed hole 301 of the feed cylinder 300, making it less likely for the die-casting liquid inside the feed cylinder 300 to flow out from other locations at the rear end of the feed cylinder 300, thus improving the sealing effect.
[0046] It should be noted that the surface of the feed hole 301 that is attached to the side of the protrusion 401 extends outward from front to back, that is, from front to back, the distance between the surface of the feed hole 301 that is attached to the side of the protrusion 401 and the center line of the feed hole 301 increases.
[0047] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, a relief groove 202 is formed on the right side of the rear mold 201, with the front end of the relief groove 202 extending through it. The slider 400 extends into the relief groove 202, and a second cavity 600 is formed between the left side of the slider 400 and the left side of the relief groove 202. In this embodiment, the relief groove 202 is provided, and the slider 400 partially extends into the relief groove 202, thus making the structure of the die-casting device for the shell of this utility model more compact and the overall volume smaller.
[0048] In some embodiments of this utility model, such as Figures 1 to 3As shown, the rear end face of the slider 400 is in contact with the rear end face of the relief groove 202. This contact between the rear end face of the slider 400 and the rear end face of the relief groove 202 reduces the outflow of die-casting liquid from the rear end of the second cavity 600, thereby improving the sealing performance of the second cavity 600 and resulting in better die-casting molding.
[0049] It should be noted that the left-side area of the rear end face of the slider 400 may be in contact with the rear end face of the relief groove 202, while the right-side area of the rear end face of the slider 400 may be in contact with the rear mold base 200. Alternatively, the entire rear end face of the slider 400 may be in contact with the rear end face of the relief groove 202.
[0050] In some embodiments of this utility model, such as Figures 1 to 3 As shown, the right side of the front mold 101 has an extension 102, which is located in front of the relief groove 202. A crossflow channel 800 is formed between the left side of the front end face of the slider 400 and the rear end face of the extension 102. The right side of the crossflow channel 800 connects to the guide channel 700, and the left side of the crossflow channel 800 connects to the first cavity 500 and the second cavity 600. After the die-casting liquid enters the guide channel 700, it enters the first cavity 500 and the second cavity 600 through the left side of the crossflow channel 800, resulting in better flow guidance. Moreover, the left side of the rear end face of the extension 102 can also have a certain sealing effect on the front end of the second cavity 600, preventing the die-casting liquid from flowing back out from the front end of the second cavity 600 after being injected into it.
[0051] In some embodiments of this utility model, such as Figures 1 to 3 As shown in the projection in the left-right direction, the right edge of the rear end face of the extension 102 is flush with the surface of the front end of the notch. This makes the inner wall connection at the transition position between the guide channel 700 and the cross channel 800 smoother, thereby improving the flow guidance effect of the die-casting liquid.
[0052] In some embodiments of this utility model, such as Figures 1 to 3 As shown, the front end of the slider 400 extends to the outside of the right side of the first cavity 500. This arrangement not only facilitates communication between the right side of the first cavity 500 and the front end of the second cavity 600, but also allows the left side of the front end of the slider 400 to partially block the right side of the first cavity 500, preventing the die-casting liquid from flowing back out from the right side of the first cavity 500 after it has been injected into it.
[0053] In some embodiments of this utility model, such as Figure 2As shown, a water-cooling channel 103 is formed around the feed cylinder 300 in the front mold base 100. For example, the water-cooling channel 103 may surround the feed cylinder 300, and the water-cooling channel 103 may be provided with a water inlet hole connected to an external cooling water supply device. During the liquid injection process, the external cooling water supply device inputs cooling water into the water-cooling channel 103 through the water inlet hole, and the cooling water can effectively cool the feed cylinder 300, preventing the feed cylinder 300 from being damaged by the high temperature of the die-casting liquid for a long time.
[0054] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An apparatus for shell die casting, characterized by, The application relates to a front mold frame, a rear mold frame, a feeding cylinder and a slider. The front mold frame is provided with a front mold; the rear mold frame is provided with a rear mold; a first mold cavity with a right side opening is formed between the front mold and the rear mold; the feeding cylinder is arranged on the front mold frame; a gap is formed on the left side wall of the rear end of the feeding cylinder; the slider is slidably arranged on the front mold frame or the rear mold frame in the left-right direction; the slider is located on the right side of the rear mold and forms a second mold cavity with a front end opening between the slider and the rear mold; the right side of the first mold cavity and the front end of the second mold cavity are connected. The front end surface of the slider is attached to the rear end surface of the feeding cylinder; the surface of the gap and the front end surface of the slider form a flow guide channel; the flow guide channel is connected to the right side of the first mold cavity and the front end of the second mold cavity. The feeding cylinder is provided with a feeding hole; the front end surface of the slider is provided with a protruding part; the protruding part extends into the feeding cylinder; the upper side surface of the protruding part is attached to the upper side surface of the feeding hole; the lower side surface of the protruding part is attached to the lower side surface of the feeding hole; there is a gap between the left side surface of the protruding part and the left side surface of the feeding hole; and the slider can be slid to make the right side surface of the protruding part attached to the right side surface of the feeding hole. In the projection in the left-right direction, the front end surface of the gap is flush with the front end surface of the protruding part, or the front end surface of the gap is located in front of the front end surface of the protruding part. The surface attached by the side surface of the protruding part extends outward from front to back; and the side surface of the protruding part extends outward from front to back.
2. The apparatus according to claim 1, wherein The right side of the rear mold is provided with a clearance groove; the front end of the clearance groove is provided with a through hole; the slider extends into the clearance groove; and the left side surface of the slider and the left side surface of the clearance groove form the second mold cavity.
3. The apparatus according to claim 2, wherein The rear end surface of the slider is attached to the rear end surface of the clearance groove.
4. The apparatus according to claim 2, wherein The right side of the front mold is provided with an extension part; the extension part is located in front of the clearance groove; the left side of the front end surface of the slider and the rear end surface of the extension part form a cross flow channel; the right side of the cross flow channel is connected to the flow guide channel; and the left side of the cross flow channel is connected to the first mold cavity and the second mold cavity.
5. The apparatus according to claim 1, wherein In the projection in the left-right direction, the right edge of the rear end surface of the extension part is flush with the surface of the front end of the gap.
6. The apparatus according to claim 5, wherein The front end of the slider extends to the right side of the first mold cavity.
7. The apparatus according to claim 5, wherein The front mold frame is provided with a water cooling channel on the circumferential side of the feeding cylinder.
8. The apparatus according to claim 7, wherein 9. The apparatus according to claim 1, wherein 10. The apparatus according to claim 1, wherein