Circulating line cooling system of extrusion casting mold

Abstract

The utility model discloses a circulation line cooling system of an extrusion casting mold, and belongs to the technical field of extrusion casting molds. The cooling system comprises a mold core; the water diversion block is embedded into the mold core; the cooling system can convey cooling liquid into the mold core; the mold cavity is formed in the mold core and is used for casting molding; the surface of the mold core is concaved inwards to form at least one outer cooling channel, an outer water blocking plate capable of extending into the outer cooling channel is arranged on the water distribution block, and the height and the length of the outer water blocking plate are both smaller than the depth and the length of the outer cooling channel. According to the circulation line cooling system of the extrusion casting mold, the circulation line cooling channel is formed by combining the outer water plugging plate and the outer cooling channel, so that the cooling channel does not need to be arranged in the mold core during production, the mold is integrally formed, the production efficiency is effectively improved, a plurality of circulation line cooling devices can be arranged according to the shape of a casting, and the production cost is reduced. Therefore, the cooling area is enlarged, and the cooling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion casting molds, in particular to a circulating line cooling system of an extrusion casting mold. Background Art

[0002] Casting refers to a processing method in which solid metal is melted into liquid and poured into a mold of a specific shape, waiting for it to solidify and form. One of the processing methods is liquid die forging, which is also called squeeze casting, continuous casting and forging. It is an emerging metal forming process that has both casting characteristics and is similar to die forging. It is to pour a certain amount of molten metal to be cast directly into a cavity coated with lubricant, and continuously apply mechanical static pressure, using the easy flow of metal casting and forging technology during solidification to cause plastic deformation of the solidified hard shell, so that the metal crystallizes and solidifies under pressure and forcibly eliminates shrinkage cavities and shrinkage formed by solidification shrinkage, so as to obtain liquid die forging parts without casting defects.

[0003] Die-casting mold cooling can be divided into external cooling and internal cooling. External cooling is to use a nozzle to spray the mold cavity surface to cool it down after the casting is demolded, and spray a release agent; internal cooling is to circulate cooling water inside the mold, which is the main cooling method for the mold. For the requirements of the extrusion casting process, the extension of the mold life and the shortening of the die-casting molding cycle, it is very important to set a cooling water channel on the die-casting mold to allow the circulating water to pass into the forming insert or core to take the heat out of the mold.

[0004] The existing cooling methods in extrusion molds are: line cooling and individual spot cooling. Line cooling: The mold requires enough space to arrange cooling water channels. The number of cooling water holes should be as large as possible, and the hole diameter should be as large as possible. The distance between the center line of the cooling water hole and the cavity wall should be 1 to 2 times the diameter of the cooling water channel (usually 12mm to 15mm), and the center distance between the cooling water channels is about 3 to 5 times the diameter of the water hole. The water channel diameter is generally above 8mm. Spot cooling: It is often used in small spaces and small cores. Local cooling is generally an independent single cooling channel, requiring one water inlet pipe and one water outlet pipe.

[0005] However, according to the requirements of the extrusion casting process, some products need to be cooled in different areas. Therefore, the common straight-through line cooling cannot meet the requirements. If point cooling is used, the water flow rate cannot be reached and the cooling effect cannot be achieved. In addition, the cooling channel of the line cooling is more cumbersome when drilling, which makes mold production difficult. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a circulating line cooling system for an extrusion casting mold.

[0007] The technical solution of the utility model is: a circulating line cooling system for an extrusion casting mold, comprising: a mold core; a water dividing block embedded in the mold core; a cooling system capable of transporting coolant to the interior of the mold core; a mold cavity opened on the mold core for casting molding; the surface of the mold core is recessed inward to form at least one external cooling channel, the water dividing block is provided with an external water blocking plate capable of extending to the interior of the external cooling channel, the height and length of the external water blocking plate are both smaller than the depth and length of the external cooling channel, the gap between the external cooling channel and the external water blocking plate forms a circulating line cold channel for the circulation of coolant, and the circulating line cold channel is U-shaped; a cooling pipe socket is penetrated through the water dividing block and located at both ends of the external water blocking plate, and the cooling pipe socket is connected to the circulating line cold channel.

[0008] Furthermore, the surface of the mold core is recessed inward to form at least one internal cooling channel, and the water dividing block is provided with at least one internal water blocking plate that can extend into the interior of the internal cooling channel, and the height and length of the internal water blocking plate are both smaller than the depth and length of the internal cooling channel.

[0009] Furthermore, the plurality of outer cooling channels are distributed in an annular pattern at intervals, and the outer cooling channels are arranged in an arc shape.

[0010] Furthermore, the inner cooling channels are distributed in annular shapes at intervals, and the inner cooling channels are arranged in an arc shape.

[0011] Furthermore, the width of the outer water blocking plate is equal to the width of the outer cooling channel, and the outer peripheries of the outer cooling channel and the inner cooling channel are both provided with sealing strips for sealing.

[0012] Furthermore, the cooling system includes a plurality of cooling pipes and adapters, one end of the cooling pipe is connected to the adapter, and the adapter is connected to the cooling pipe socket.

[0013] Furthermore, a cooling groove recessed inwardly is provided in the middle of the mold core, and a cooling column capable of being inserted into the cooling groove is integrally formed in the middle of the water dividing block, and the cooling column is hollow in design and penetrated by a cooling pipe socket.

[0014] Furthermore, the mold core is provided with a plurality of screw holes, and the water dividing block is provided with screws that can fix the mold core and the water dividing block through the screw holes.

[0015] The beneficial technical effect of the utility model is that after the water dividing block is assembled with the mold core, the external water blocking plate will be inserted into the external cooling channel. Since the height and length of the external water blocking plate are smaller than the depth and length of the external cooling channel, a certain gap will be left, and the flow path of the gap is U-shaped, thereby realizing the cooling function. When the cooling system is connected through the cooling pipe socket, the coolant can enter the circulating line cold channel, thereby helping the casting to be quickly cooled and formed. Moreover, since the external water blocking plate and the external cooling channel are used, there is no need to arrange the cooling channel inside the mold core during production. One-piece molding of the mold can be used, thereby effectively improving production efficiency. Moreover, multiple circulating line cooling settings can be made according to the shape of the casting to form an area, expand the cooling area, and improve cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a frontal perspective schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the structure of the utility model from the back;

[0018] Figure 3 It is a schematic diagram of the structure of the mold core of the utility model from top view;

[0019] Figure 4 It is a schematic front view of the structure of the water dividing block of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the water dividing block of the utility model from the back;

[0021] Figure 6 It is a three-dimensional schematic diagram of the structure of the water dividing block of the utility model;

[0022] Figure 7 It is a three-dimensional schematic diagram of the structure of the mold core of the utility model;

[0023] Figure 8 It is a schematic diagram of the structural section of the utility model.

[0024] The numbers and letters in the figure represent the corresponding component names:

[0025] 1. Mold core; 11. Mold cavity; 12. External cooling channel; 13. Internal cooling channel; 14. Cooling trough; 15. Sealing strip; 2. Water dividing block; 21. External water blocking plate; 22. Internal water blocking plate; 23. Cooling column; 3. Cooling pipe; 31. Adapter; 4. Cooling pipe socket. DETAILED DESCRIPTION

[0026] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0027] See attached Figure 1-8 As shown, the circulating line cooling system of the extrusion casting mold of the first embodiment includes: a mold core 1; a water dividing block 2 embedded in the mold core 1; a cooling system capable of transporting coolant to the inside of the mold core 1; and a mold cavity 11 opened on the mold core 1 for casting molding.

[0028] The water dividing block 2 can be embedded in the mold core 1 to form an integrated whole. The cooling system can transport the coolant to the mold core 1 to cool the mold core 1. The casting can be formed inside the mold cavity 11, and then the mold core 1 can absorb the heat and can be quickly cooled and formed by the coolant.

[0029] The surface of the mold core 1 is recessed inward to form at least one external cooling channel 12. The water dividing block 2 is provided with an external water blocking plate 21 that can extend to the inside of the external cooling channel 12. The height and length of the external water blocking plate 21 are both smaller than the depth and length of the external cooling channel 12. The gap between the external cooling channel 12 and the external water blocking plate 21 forms a circulating line cold channel for the circulation of coolant, and the circulating line cold channel is U-shaped; a cooling pipe socket 4 is provided on the water dividing block 2 and located at both ends of the external water blocking plate 21, and the cooling pipe socket 4 is connected to the circulating line cold channel.

[0030] After the water dividing block 2 is assembled with the mold core 1, the external water blocking plate 21 will be inserted into the external cooling channel 12. Since the height and length of the external water blocking plate 21 are smaller than the depth and length of the external cooling channel 12, a certain gap will be left, and the flow path of the gap is U-shaped, so that the cooling function can be realized. When the cooling system is connected through the cooling pipe socket 4, the coolant can enter the circulating line cold channel, which can help the casting to be quickly cooled and formed. Moreover, since the external water blocking plate 21 and the external cooling channel 12 are used, there is no need to arrange the cooling channel inside the mold core during production. The mold can be integrally formed, which effectively improves the production efficiency. Moreover, multiple circulating line cooling settings can be made according to the shape of the casting to form an area, expand the cooling area, and improve the cooling efficiency.

[0031] Since the cooling pipe socket 4 is at both ends of the outer water blocking plate 21, the cooling pipe socket 4 can be connected to the water inlet pipe and the water outlet pipe respectively to achieve the purpose of circulation.

[0032] Furthermore, the surface of the mold core 1 is recessed inward to form at least one internal cooling channel 13, and the water dividing block 2 is provided with at least one internal water blocking plate 22 that can extend into the internal cooling channel 13, and the height and length of the internal water blocking plate 22 are both smaller than the depth and length of the internal cooling channel 13.

[0033] There are also cooling pipe sockets 4 at both ends of the inner cooling channel 13.

[0034] The outer cooling channel 12 is combined with the inner cooling channel 13 to expand the cooling area and improve the cooling efficiency.

[0035] Furthermore, the plurality of outer cooling channels 12 are distributed in annular shapes at intervals, and the outer cooling channels 12 are arranged in an arc shape. As a result, the inner cooling channels 13 are distributed in annular shapes at intervals, and the inner cooling channels 13 are arranged in an arc shape.

[0036] Since the mold core 1 is not large and the mold cavity 11 is in the middle, the use of a straight cooling channel will result in a distance from the mold cavity 11 and incomplete heat absorption. By adopting an arc-shaped setting, the circulating linear cooling channel can be arc-shaped, so that it is closer to the mold cavity 11 and is convenient for the heat absorption of the coolant. Since the mold cavity 11 is circular, the annular spacing distribution can be used to dissipate heat in a large range of the mold cavity 11.

[0037] Furthermore, the width of the outer water blocking plate 21 is equal to the width of the outer cooling channel 12 , and sealing strips 15 for sealing are provided on the outer peripheries of the outer cooling channel 12 and the inner cooling channel 13 .

[0038] Since the width of the water blocking plate is the same as that of the cooling channel, the water blocking plate can fit tightly when inserted into the cooling channel, so that the remaining gap forms a circulating line cold channel.

[0039] The sealing strip 15 can increase the sealing performance between the water dividing block 2 and the mold core 1, so that the coolant will not leak easily.

[0040] Furthermore, the cooling system includes a plurality of cooling pipes 3 and adapters 31 , one end of the cooling pipe 3 is connected to the adapter 31 , and the adapter 31 is connected to the socket of the cooling pipe 3 .

[0041] The cooling pipe 3 can be connected to the cooling pipe socket 4 through the adapter 31, so that the coolant can enter the cold channel of the circulation line through the cooling pipe 3 to realize the circulation of the coolant.

[0042] Furthermore, an inwardly recessed cooling groove 14 is provided in the middle of the mold core 1 , and a cooling column 23 capable of being inserted into the cooling groove 14 is integrally formed in the middle of the water distribution block 2 , and the cooling column 23 is hollow in design and penetrates through the cooling pipe socket 4 .

[0043] The length of the cooling column 23 is less than the depth of the cooling groove 14, and the outer diameter of the cooling column 23 is equal to the inner diameter of the cooling groove 14, so that the cooling column 23 can be inserted into the cooling groove 14 and seal it. Since the cooling column 23 adopts a hollow design and is connected with the cooling pipe socket 4, the coolant can enter the cooling groove 23 and circulate inside it, thereby cooling the middle part of the casting.

[0044] Furthermore, the mold core 1 is provided with a plurality of screw holes, and the water dividing block 2 is provided with screws that can fix the mold core 1 and the water dividing block 2 through the screw holes.

[0045] The water dividing block 2 can be fixed on the mold core 1 by screws through the screw holes, so that the disassembly and maintenance are simple and the water dividing block 2 can be replaced.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A circulating cooling system for an extrusion casting mold, characterized in that: include: Mould (1); A water dividing block (2) embedded in the mold core (1); A cooling system capable of delivering coolant to the interior of the mold core (1); A mold cavity (11) is provided on the mold core (1) and is used for forming a casting; The surface of the mold core (1) is recessed inwardly to form at least one external cooling channel (12); the water dividing block (2) is provided with an external water blocking plate (21) capable of extending into the interior of the external cooling channel (12); the height and length of the external water blocking plate (21) are both smaller than the depth and length of the external cooling channel (12); the gap between the external cooling channel (12) and the external water blocking plate (21) forms a circulating line cold channel for the circulation of coolant, and the circulating line cold channel is U-shaped; A cooling pipe socket (4) is provided on the water distribution block (2) and is located at both ends of the outer water blocking plate (21). The cooling pipe socket (4) is connected to a cold channel of the circulation line.

2. The circulating line cooling system of the squeeze casting mold according to claim 1, characterized in that: The surface of the mold core (1) is recessed inwardly to form at least one inner cooling channel (13); the water dividing block (2) is provided with at least one inner water blocking plate (22) capable of extending into the interior of the inner cooling channel (13); the height and length of the inner water blocking plate (22) are both smaller than the depth and length of the inner cooling channel (13).

3. The circulating line cooling system of the squeeze casting mold according to claim 1, characterized in that: The plurality of external cooling channels (12) are distributed in an annular manner at intervals, and the external cooling channels (12) are arranged in an arc shape.

4. The circulating line cooling system of the squeeze casting mold according to claim 2, characterized in that: The inner cooling channels (13) are distributed in an annular pattern at intervals, and the inner cooling channels (13) are arranged in an arc shape.

5. The circulating line cooling system of the squeeze casting mold according to claim 1, characterized in that: The width of the outer water blocking plate (21) is equal to the width of the outer cooling channel (12).

6. The circulating line cooling system of the squeeze casting mold according to claim 1, characterized in that: The cooling system comprises a plurality of cooling pipes (3) and adapters (31); one end of the cooling pipe (3) is connected to the adapter (31); and the adapter (31) is connected to the cooling pipe socket (4).

7. The circulating line cooling system of the squeeze casting mold according to claim 1, characterized in that: The mold core (1) is provided with an inwardly recessed cooling groove (14) in the middle, and the water dividing block (2) is integrally formed with a cooling column (23) that can be inserted into the cooling groove (14), and the cooling column (23) is hollow in design and penetrates through the cooling pipe socket (4).

8. The circulating line cooling system of the squeeze casting mold according to claim 1, characterized in that: The mold core (1) is provided with a plurality of screw holes, and the water dividing block (2) is provided with screws capable of fixing the mold core (1) and the water dividing block (2) through the screw holes.

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