Die with changed runner
By introducing rotating inserts and cooling water channels into the mold, the problem of the difficulty in universalizing mold flow channel design is solved, the flow channel state can be flexibly adjusted, production costs are reduced, and the applicability of the mold is improved.
Patent Information
- Application Number
- CN202520503857.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-20
AI Technical Summary
The existing mold runner design is difficult to be universally applicable to multiple product structures, resulting in high production costs and making it difficult to switch between die casting and non-die casting.
The design employs a rotating insert, which alters the internal flow channels of the mold by rotating the insert, thereby adjusting the limiting and conduction states of the flow channels. Combined with the cooling water circuit and guide sleeve/guide post structure, it enables convenient modification of the flow channels.
It enables convenient changes to the runner while the mold is closed, is applicable to multiple products, reduces production costs, and improves the versatility of the mold and production efficiency.
Smart Images
Figure CN223862837U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of mould, especially a mould of runner change. BACKGROUND
[0002] At present, in the process of die casting, materials are injected into the cavity of the mould through pouring and runner, but the runner in the cavity is generally fixed, and it is difficult to use the same set of mould to realize the change between die casting and non-die casting in the structure of multiple products, which is a great challenge to the production cost. SUMMARY
[0003] One purpose of the utility model is to provide a mould of runner change, which changes the runner inside the mould by rotating the rotating insert, and realizes the change between die casting and non-die casting.
[0004] To achieve this purpose, the utility model adopts the following technical scheme:
[0005] A mould of runner change, comprising a front mould plate, a rear mould plate and a rotating insert, the lower end of the front mould plate is provided with a front mould core, the lower end of the rear mould plate is provided with a rear mould core, a cavity is formed between the front mould core and the rear mould core, a runner is arranged in the cavity, a ladle is arranged on the outside of the runner, the rotating insert rotates on the rear mould core, the upper end of the rotating insert is in the middle part of the runner, the upper end of the rotating insert is provided with an auxiliary groove, and the auxiliary groove is communicated with the runner.
[0006] As a preferred technical scheme, an upper cooling water channel is arranged on the front mould core, a lower cooling water channel is arranged on the rear mould core, the outer end of the upper cooling water channel penetrates the side wall of the front mould plate, and the outer end of the lower cooling water channel penetrates the side wall of the rear mould plate.
[0007] As a preferred technical scheme, a flow splitting cone is arranged on one side of the cavity, the flow splitting cone is communicated with the runner, a sprue bush is connected to the upper end of the flow splitting cone, and the sprue bush is fixed on the front mould plate.
[0008] As a preferred technical scheme, a guide sleeve is installed on the rear mould plate, a guide column is installed on the front mould plate, and the guide column is inserted into the guide sleeve from top to bottom.
[0009] As a preferred technical scheme, square irons are installed on the lower ends of the two sides of the rear mould plate, a bottom plate is connected to the square iron, and a thimble panel and a thimble bottom plate are connected between the two square irons.
[0010] As a preferred technical scheme, a needle returning device and a thimble are fixed on the thimble panel, the needle returning device is inserted into the rear mould plate upwards, and the thimble is inserted into the rear mould core upwards.
[0011] As a preferred technical solution, a supporting head is installed between the ejector face plate and the ejector bottom plate, and the upper end of the supporting head is inserted into the rear mold plate.
[0012] The flow channel changing mold can adjust the two states of limiting and conducting of the flow channel under the mold closing state by rotating the rotating insert, has the effect of conveniently changing the flow channel, and has the effects of die casting and non-die casting products. BRIEF DESCRIPTION OF DRAWINGS
[0013] The utility model will be further explained in detail below according to the drawings and embodiments.
[0014] Figure 1 It is a whole structure schematic view of the flow channel changing mold of the embodiment;
[0015] Figure 2 It is a first internal structure view of the flow channel changing mold of the embodiment;
[0016] Figure 3 It is a second internal structure view of the flow channel changing mold of the embodiment;
[0017] Figure 4 It is a back structure view of the rear mold plate of the embodiment.
[0018] Figures 1 to 4 In the embodiment, the flow channel changing mold comprises a front mold plate 1, a rear mold plate 2 and a rotating insert 3.
[0019] 1, front mold plate;2, rear mold plate;3, rotating insert;4, front mold core;5, rear mold core;6, flow channel;7, ladle;8, upper cooling water channel;9, lower cooling water channel;10, flow dividing cone;11, sprue bush;12, guide sleeve;13, guide column;14, square iron;15, bottom plate;16, ejector face plate;17, ejector bottom plate;18, return needle;19, ejector pin;20, supporting head. DETAILED DESCRIPTION
[0020] The technical scheme of the utility model will be further explained below in combination with the drawings and through specific embodiments.
[0021] As Figures 1 to 4 shown in the embodiment, a flow channel changing mold comprises a front mold plate 1, a rear mold plate 2 and a rotating insert 3, the lower end of the front mold plate 1 is provided with a front mold core 4, the lower end of the rear mold plate 2 is provided with a rear mold core 5, a cavity is formed between the front mold core 4 and the rear mold core 5, a flow channel 6 is arranged in the cavity, a ladle 7 is arranged outside the flow channel 6, the rotating insert 3 rotates on the rear mold core 5, the upper end of the rotating insert 3 is located in the middle part of the flow channel 6, the upper end of the rotating insert 3 is provided with an auxiliary groove, and the auxiliary groove is communicated with the flow channel 6.
[0022] When the front mold plate 1 and the rear mold plate 2 are closed, the cavity formed between the front mold core 4 and the rear mold plate 2 is connected to the runner 6. During the die casting process from the front mold plate 1, the material flows in the runner 6, thus die casting. When it is necessary to close a part of the runner 6, the rotating insert 3 is rotated at the lower end of the rear mold core 5 using a hexagonal internal screw. This causes the auxiliary groove on the rotating insert 3 to change its position from being connected to the runner 6, blocking the original flow of the runner 6. This changes the process from die casting to non-die casting and is applicable to multiple products.
[0023] The front mold core 4 is provided with an upper cooling water channel 8, and the rear mold core 5 is provided with a lower cooling water channel 9. The outer end of the upper cooling water channel 8 passes through the side wall of the front mold plate 1, and the outer end of the lower cooling water channel 9 passes through the side wall of the rear mold plate 2. The upper cooling water channel 8 and the lower cooling water channel 9 are connected to the external cooling circuit to cool the cavity.
[0024] A flow divider cone 10 is provided on one side of the cavity. The flow divider cone 10 is connected to the runner 6. A sprue sleeve 11 is connected to the upper end of the flow divider cone 10. The sprue sleeve 11 is fixed on the front template 1. The material enters the flow divider cone 10 from the sprue sleeve 11 and then reaches various positions in the cavity through the runner 6.
[0025] A guide sleeve 12 is installed on the rear template 2, and a guide post 13 is installed on the front template 1. The guide post 13 is inserted into the guide sleeve 12 from top to bottom. Through the docking of the guide post 13 and the guide sleeve 12, the front template 1 and the rear template 2 are neatly closed, and the front mold core 4 and the rear mold core 5 can also be perfectly docked to form a cavity.
[0026] Square iron plates 14 are installed on the lower ends of both sides of the rear template 2. A base plate 15 is connected to the square iron plates 14. An ejector plate 16 and an ejector base plate 17 are connected between the two square iron plates 14. A return pin 18 and an ejector pin 19 are fixed on the ejector plate 16. The return pin 18 is inserted upward into the rear template 2, and the ejector pin 19 is inserted upward into the rear mold core 5. A support head 20 is installed between the ejector plate 16 and the ejector base plate 17. The upper end of the support head 20 is inserted into the rear template 2. The ejector pin 19 is used to lift the product from the rear mold core 5, and the support head 20 is used to limit the position of the rear template 2 to ensure that the force is not uneven during the mold opening and closing process.
[0027] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles applied thereto. Within the scope of the technology disclosed in this utility model, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.
Claims
1. A mold for modifying the flow channel, characterized in that, The device includes a front mold plate, a rear mold plate, and a rotating insert. The lower end of the front mold plate is provided with a front mold core, and the lower end of the rear mold plate is provided with a rear mold core. A cavity is formed between the front mold core and the rear mold core. A flow channel is provided inside the cavity, and a slag bag is provided on the outside of the flow channel. The rotating insert rotates on the rear mold core, and the upper end of the rotating insert is located in the middle of the flow channel. An auxiliary groove is provided at the upper end of the rotating insert, and the auxiliary groove communicates with the flow channel.
2. The mold for modifying the flow channel according to claim 1, characterized in that, The front mold core is provided with an upper cooling water channel, and the rear mold core is provided with a lower cooling water channel. The outer end of the upper cooling water channel passes through the side wall of the front mold plate, and the outer end of the lower cooling water channel passes through the side wall of the rear mold plate.
3. The mold for modifying the flow channel according to claim 1, characterized in that, A flow divider cone is provided on one side of the cavity, the flow divider cone is connected to the flow channel, and a sprue sleeve is connected to the upper end of the flow divider cone. The sprue sleeve is fixed on the front template.
4. The mold for modifying the flow channel according to claim 1, characterized in that, A guide sleeve is installed on the rear template, and a guide post is installed on the front template. The guide post is inserted into the guide sleeve from top to bottom.
5. A mold for modifying the flow channel according to claim 1, characterized in that, Square irons are installed on the lower ends of both sides of the rear template, and a base plate is connected to the square irons. A pin panel and a pin base plate are connected between the two square irons.
6. A mold for modifying the flow channel according to claim 5, characterized in that, The ejector plate is fixed with a return pin and an ejector pin. The return pin is inserted upward into the rear template, and the ejector pin is inserted upward into the rear mold core.
7. A mold for modifying the flow channel according to claim 5, characterized in that, A support head is installed between the ejector plate and the ejector base plate, and the upper end of the support head is inserted into the rear template.