Sprue bush of die-casting die
By designing an integrated cooling seat and sprue seat in the sprue sleeve of the die-casting mold and setting multiple cooling channels, the problem of poor cooling effect of the sprue sleeve is solved, rapid cooling is achieved and the risk of leakage is reduced, thereby improving the quality and production efficiency of die-cast parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI RONGTAI PRECISION DIE CASTING
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-24
AI Technical Summary
The current gate bushing has poor cooling effect, is prone to cracking and damage, and can cause cooling water leakage, which affects the quality of die castings and production efficiency.
A gate sleeve for a die-casting mold is designed, which adopts an integrally molded cooling seat and gate seat, and sets multiple cooling channels, including blind holes on the outer circular surface of the gate seat, the upper end face and the area between the seat, forming a rapid cooling channel. The cooling channels are integrally molded to reduce the risk of leakage.
This technology enables rapid cooling of the sprue bushing, reduces the risk of leakage in the cooling channel, and improves the quality and production efficiency of die-cast parts.
Smart Images
Figure CN224157737U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and in particular to a gating sleeve for a die-casting mold. Background Technology
[0002] To successfully develop high-strength automotive rear steering die-cast parts and meet their mechanical performance and internal strength requirements, ultra-high vacuum die-casting technology is necessary. A die-casting mold is a mold used to cast die-cast parts. The production of die-cast parts requires controlling parameters such as pressure and speed during the die-casting process. Precise control of the mold's preheating temperature, molten metal temperature, and cooling system temperature is crucial to ensuring the quality and production efficiency of the die-cast parts. Within the entire mold, the sprue bushing, as the first part to come into contact with the molten metal, is critically important for the quality of the die-cast parts. During die-casting, the sprue bushing withstands high temperatures and requires a rapid cooling rate. Currently, the cooling effect of sprue bushings is poor, making them prone to cracking, damage, and cooling water leakage. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a sprue sleeve for a die-casting mold, which features rapid cooling and ease of processing.
[0004] A sprue sleeve for a die-casting mold according to an embodiment of the present invention includes a cooling seat and a sprue seat disposed on the cooling seat. The cooling seat and the sprue seat are integrally formed, and a sprue is provided through the cooling seat and the sprue seat. The sprue seat is provided with a first cooling water channel, which includes a plurality of sequentially connected first blind holes. The openings of the first blind holes are opened on the outer circumferential surface of the sprue seat. The opening of the first first blind hole is a first water inlet, and the openings of the remaining first blind holes are provided with first plugs. A second blind hole is opened on the upper end face of the sprue seat. The second blind hole is connected to the last first blind hole, and the opening of the second blind hole is provided with a second plug. A second cooling water channel is provided in the area between the sprue seat and the cooling seat. The second cooling water channel includes a plurality of sequentially connected third blind holes. The openings of the third blind holes are opened in the area between the sprue seat and the cooling seat. The first third blind hole is connected to the second blind hole, and the opening of the last third blind hole is a first water outlet. The openings of the remaining third blind holes are provided with third plugs.
[0005] It has at least the following beneficial effects:
[0006] Cooling water can promptly remove heat from the sprue seat and the cooling seat, thereby achieving rapid cooling of the sprue sleeve. The sprue sleeve cools down quickly. The opening of the first blind hole is located on the outer circular surface of the sprue seat, the second blind hole is located on the upper end face of the sprue seat, and the opening of the third blind hole is located in the area between the sprue seat and the cooling seat. The first, second, and third blind holes can be drilled directly, making the processing convenient and quick. The cooling seat and the sprue seat are integrally formed, which can reduce the risk of leakage in the cooling channel.
[0007] According to some embodiments of the present invention, the number of the first blind holes is eight, and except for the first first blind hole, the included angle between any two adjacent first blind holes is 138°.
[0008] According to some embodiments of this utility model, the number of the third blind holes is eight, and except for the last third blind hole, the included angle between any two adjacent third blind holes is 138°.
[0009] According to some embodiments of this utility model, except for the first blind hole, the minimum distance between all other first blind holes and the center of the gate is equal.
[0010] According to some embodiments of this utility model, except for the third blind hole at the end, the minimum distance between all the other third blind holes and the center of the gate is equal.
[0011] According to some embodiments of the present invention, the cooling base is provided with a third cooling water channel, the third cooling water channel includes a plurality of fourth blind holes connected in sequence, the opening of the first fourth blind hole is a second water inlet, the opening of the last fourth blind hole is a second water outlet, and the openings of the remaining fourth blind holes are all provided with fourth plugs.
[0012] According to some embodiments of this utility model, the number of fourth blind holes is three, the three fourth blind holes are U-shaped, and the minimum distance between all the fourth blind holes and the center of the gate is equal.
[0013] According to some embodiments of the present invention, the cooling seat is cuboid, and a guide groove is provided on one end face of the cooling seat for guiding the installation of the cooling seat.
[0014] According to some embodiments of this utility model, the inner diameter of the gate gradually increases from top to bottom.
[0015] According to some embodiments of the present invention, the upper end face of the sprue seat is provided with an annular limiting groove, which is used for connection with external pouring equipment.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious 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 structure of an embodiment of the present utility model;
[0019] Figure 2 This is a side view of an embodiment of the present utility model;
[0020] Figure 3 for Figure 2 Sectional view at point AA;
[0021] Figure 4 for Figure 2 Sectional view at point BB;
[0022] Figure 5 for Figure 2 Sectional view at CC;
[0023] Icon labels:
[0024] Cooling seat 100, guide groove 110, gate seat 200, second blind hole 210, limiting groove 220, gate 300, first cooling water channel 400, first water inlet 410, first plug 500, second cooling water channel 600, first water outlet 610, third plug 700, third cooling water channel 800, second water inlet 810, second water outlet 820, fourth plug 900. Detailed Implementation
[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying 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.
[0026] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.
[0027] 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.
[0028] Reference Figures 1 to 3 This utility model discloses a sprue sleeve for a die-casting mold, including an integrally formed cooling seat 100 and a sprue seat 200. The sprue seat 200 is disposed on the cooling seat 100, and a sprue 300 is provided through the cooling seat 100 and the sprue seat 200. The cooling seat 100 is cuboid, and the sprue seat 200 is columnar. The length and width of the cooling seat 100 are both greater than the outer diameter of the sprue seat 200. The upper end of the sprue 300 is disposed on the upper end face of the sprue seat 200, and the lower end of the sprue 300 is disposed on the lower surface of the cooling seat 100.
[0029] The gating seat 200, with a gating point 300, is annular. (Refer to...) Figure 3 The sprue seat 200 is provided with a first cooling water channel 400, which includes a plurality of first blind holes connected in sequence. The openings of the first blind holes are formed on the outer circumferential surface of the sprue seat 200. The opening of the first first blind hole is a first inlet 410, and the openings of the remaining first blind holes are provided with first plugs 500. A second blind hole 210 is formed on the upper end face of the sprue seat 200. The second blind hole 210 is connected to the last first blind hole, and the opening of the second blind hole 210 is provided with a second plug. (Refer to...) Figure 4 A second cooling water channel 600 is provided in the area between the gate seat 200 and the cooling seat 100. The second cooling water channel 600 includes a plurality of third blind holes connected in sequence. The opening of the third blind hole is located in the area between the gate seat 200 and the cooling seat 100. The first third blind hole is connected to the second blind hole 210. The opening of the last third blind hole is the first outlet 610. The openings of the remaining third blind holes are all provided with third plugs 700.
[0030] A first inlet 410, multiple sequentially arranged first blind holes, second blind holes 210, multiple sequentially arranged third blind holes, and a first outlet 610 are connected to form a cooling channel. Cooling water is introduced into the cooling channel through the first inlet 410, and the cooling water passes through the cooling channel and is discharged outside the sprue sleeve through the first outlet 610. Since the first cooling water channel 400 is located inside the sprue seat 200, and the second cooling water channel 600 is located in the area between the sprue seat 200 and the cooling seat 100, the cooling water can promptly remove the heat from the sprue seat 200 and the cooling seat 100, thereby achieving rapid cooling of the sprue sleeve. During die casting production, the temperature of the sprue sleeve gradually decreases from top to bottom. The first cooling water channel 400 and the second cooling water channel 600 are relatively close to the upper end of the sprue sleeve, which is more conducive to uniform cooling of the sprue sleeve and improving the cooling rate.
[0031] The first blind hole is located on the outer surface of the gate seat 200, the second blind hole 210 is located on the upper surface of the gate seat 200, and the third blind hole is located in the area between the gate seat 200 and the cooling seat 100. The first, second, and third blind holes can be drilled directly, making the machining process convenient and quick. The cooling seat 100 and the gate seat 200 are integrally formed, which reduces the risk of leakage in the cooling channel.
[0032] Reference Figure 3 In some implementations, there are eight first blind holes. Except for the first first blind hole, the included angle between any two adjacent first blind holes is 138°. The distribution of multiple first blind holes is relatively regular and uniform, which allows the cooling water passing through multiple first blind holes to carry away the heat of the gate seat 200 more evenly.
[0033] In some of these implementations, except for the first blind hole, the minimum distance between all the other first blind holes and the center of the gate 300 is equal. All the other first blind holes are arranged around the gate 300 and centered on the gate 300, so that the cooling water in the multiple first blind holes can more evenly remove the heat from each area of the side wall of the gate 300, and make the cooling of each area of the gate seat 200 more uniform.
[0034] Reference Figure 4 In some implementations, there are eight third blind holes. Except for the last third blind hole, the included angle between any two adjacent third blind holes is 138°. The distribution of multiple third blind holes is relatively regular and uniform, which allows the cooling water passing through multiple third blind holes to carry away the heat of the gate seat 200 and the cooling seat 100 more evenly.
[0035] In some implementations, except for the third blind hole at the end, the minimum distance between all other third blind holes and the center of the gate 300 is equal. All other third blind holes are arranged around the gate 300 and centered on the gate 300, so that the cooling water in the multiple third blind holes can more evenly remove the heat from each area of the side wall of the gate 300, and make the cooling of each area of the gate seat 200 and the cooling seat 100 more uniform.
[0036] Reference Figure 1 , Figure 2 and Figure 5 In some of these implementations, the cooling base 100 is provided with a third cooling water channel 800, which includes a plurality of fourth blind holes connected in sequence. The opening of the first fourth blind hole is the second water inlet 810, the opening of the last fourth blind hole is the second water outlet 820, and the openings of the remaining fourth blind holes are all provided with fourth plugs 900.
[0037] Cooling water is introduced into the third cooling channel 800 through the second inlet 810. The cooling water passes through the third cooling channel 800 and is discharged to the outside of the sprue bushing through the second outlet 820. Since the third cooling channel 800 is located inside the cooling base 100, the cooling water can promptly remove the heat from the cooling base 100, thereby accelerating the rapid cooling of the sprue bushing and making the sprue bushing cool down faster.
[0038] All the openings of the fourth blind holes are made on the end face of the cooling seat 100, which makes it easy and quick to machine the fourth blind holes.
[0039] It is conceivable that the first blind hole, the second blind hole, the third blind hole, and the fourth blind hole are all straight holes, meaning that the first blind hole, the second blind hole, the third blind hole, and the fourth blind hole can all be drilled directly with a drill bit.
[0040] Reference Figure 5 In some implementations, there are three fourth blind holes, which are U-shaped. The openings of the three fourth blind holes are all located on the end face of the cooling base 100. The minimum distance between all the fourth blind holes and the center of the gate 300 is equal. The three fourth blind holes are arranged around the gate 300 and centered on the gate 300, so that the cooling water in the three fourth blind holes can more evenly remove the heat from each area of the side wall of the gate 300, making the cooling of each area of the cooling base 100 more uniform.
[0041] The first plug 500, the second plug, the third plug 700, and the fourth plug 900 all use raw rubber tape and sealant to seal the opening of the blind hole, thereby improving the sealing performance of the opening.
[0042] Reference Figure 1 and Figure 2 In some of these implementations, the cooling seat 100 is cuboid, and a guide groove 110 is provided on one end face of the cooling seat 100. The guide groove 110 is used to guide the installation of the cooling seat 100, thereby improving the installation accuracy and convenience of the sprue bushing.
[0043] In some of these implementations, the inner diameter of the gate 300 gradually increases from top to bottom, which is beneficial to improving the efficiency and effect of pouring molten metal.
[0044] In some implementations, the upper surface of the gating seat 200 is provided with an annular limiting groove 220. The limiting groove 220 is used for connection with external pouring equipment, improving the docking effect and convenience between the gating seat 200 and the external pouring equipment. A sealing element may be installed in the limiting groove 220.
[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0046] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A gating sleeve for a die-casting mold, characterized in that, include: A cooling seat (100) and a gate seat (200) disposed on the cooling seat (100), the cooling seat (100) and the gate seat (200) are integrally formed, and a gate (300) is provided through the cooling seat (100) and the gate seat (200). The gate seat (200) is annular and has a first cooling water channel (400). The first cooling water channel (400) includes a plurality of first blind holes connected in sequence. The opening of the first blind hole is opened on the outer circular surface of the gate seat (200). The opening of the first first blind hole is the first water inlet (410). The openings of the remaining first blind holes are all provided with first plugs (500). The upper end face of the gate seat (200) is provided with a second blind hole (210). The second blind hole (210) is connected to the last first blind hole. The opening of the second blind hole (210) is provided with a second plug. A second cooling water channel (600) is provided in the area between the gate seat (200) and the cooling seat (100). The second cooling water channel (600) includes a plurality of third blind holes connected in sequence. The opening of the third blind hole is opened in the area between the gate seat (200) and the cooling seat (100). The first third blind hole is connected to the second blind hole (210). The opening of the last third blind hole is the first outlet (610). The openings of the remaining third blind holes are all provided with third plugs (700).
2. The gating sleeve of the die-casting mold according to claim 1, characterized in that, The number of first blind holes is eight. Except for the first first blind hole, the included angle between any two adjacent first blind holes is 138°.
3. The gating sleeve of the die-casting mold according to claim 1, characterized in that, The number of the third blind holes is eight, and except for the last third blind hole, the included angle between any two adjacent third blind holes is 138°.
4. The gating sleeve of the die-casting mold according to claim 1, characterized in that, Except for the first blind hole, all other blind holes are equidistant from the center of the gate (300).
5. The gating sleeve of the die-casting mold according to claim 1, characterized in that, Except for the third blind hole at the end, all other third blind holes are equidistant from the center of the gate (300).
6. The gating sleeve of the die-casting mold according to claim 1, characterized in that, The cooling base (100) is provided with a third cooling water channel (800), which includes a plurality of fourth blind holes connected in sequence. The opening of the first fourth blind hole is a second water inlet (810), the opening of the last fourth blind hole is a second water outlet (820), and the openings of the remaining fourth blind holes are provided with fourth plugs (900).
7. The gating sleeve of the die-casting mold according to claim 6, characterized in that, The number of fourth blind holes is three, and the three fourth blind holes are U-shaped. The minimum distance between all the fourth blind holes and the center of the gate (300) is equal.
8. The gating sleeve of the die-casting mold according to claim 1, characterized in that, The cooling seat (100) is cuboid, and a guide groove (110) is provided on one end face of the cooling seat (100). The guide groove (110) is used to guide the installation of the cooling seat (100).
9. The gating sleeve of the die-casting mold according to claim 1, characterized in that, The inner diameter of the gate (300) gradually increases from top to bottom.
10. The sprue bushing of the die-casting mold according to claim 1, characterized in that, The upper end face of the gating seat (200) is provided with an annular limiting groove (220), which is used for external pouring equipment to cooperate and connect.