Cooling structure for sealing cover mold

Abstract

The utility model relates to a cooling structure for a sealing cover mould, the cooling structure comprises two water inlet ports, two water outlet ports and a cooling flow channel arranged on a lower mould, the cooling flow channel comprises a main flow channel and at least three branch flow channels, the main flow channel is arranged diagonally relative to a cavity group, and the branch flow channels are communicated with the main flow channel. The branch flow channels are perpendicular to the main flow channel on the horizontal plane, the two water inlet ports are communicated with the two ends of the main flow channel respectively, and the two water outlet ports are communicated with the two ends of one branch flow channel respectively. And the conditions that in the related technology, when multiple sets of to-be-machined parts exist in the mold, the #-shaped heat dissipation cavity cannot cover the to-be-machined part in the middle easily, and heat dissipation of part of the to-be-machined parts is not uniform are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold water cooling, in particular to a cooling structure for a capping mold. Background Art

[0002] Metal cover parts are often produced and processed by die casting. During the die casting process, as the number of shots increases, the temperature of the die casting mold will continue to rise. Without the die casting mold temperature controller to cool the mold, the temperature difference between the mold and the metal solution will continue to decrease, making the die casting of the alloy slower and slower, resulting in poor density of the die casting and defects such as pinholes.

[0003] In order to solve the above problems, the mold cooling structure with circulating flow channels is widely used in the relevant technology. A flow channel for circulating cooling water is set on the mold, and the flow channel is connected to an external water cooling device to achieve the overall thermal balance of the cover mold, improve the cooling efficiency of the metal cover parts and the demolding efficiency of the metal cover parts.

[0004] The metal cover has a sheet-like structural feature, and the depth of the mold cavity used is relatively shallow. For metal cover with smaller specifications, the mold is often provided with multiple groups of cavities to form multiple metal cover at one time.

[0005] A Chinese utility model patent with publication number CN217553048U discloses a mold with a cooling function, including an upper mold, a lower mold is arranged directly below the upper mold, the upper surface of the upper mold is fixedly connected to a hydraulic device, the lower surface of the lower mold is arranged on a workbench, the upper surface of the lower mold begins with a groove 2, a mold core is snap-connected in the groove 2, and a groove 1 for snap-connecting the mold core is opened on the lower surface of the upper mold, a heat dissipation cavity is opened inside the upper mold and the lower mold, and the two heat dissipation cavities are both in a well shape, and the opposite side ports of the heat dissipation cavity in the upper mold are connected with upper connecting pipes, there are multiple groups of upper connecting pipes, and lower connecting pipes are correspondingly arranged directly below the multiple groups of upper connecting pipes, and the lower ends of the lower connecting pipes are correspondingly connected to the heat dissipation cavity ports in the lower mold.

[0006] In the above technical solution, there are multiple groups of workpieces to be processed in the mold, and the criss-cross-shaped heat dissipation cavity is difficult to cover the workpieces to be processed in the middle, resulting in uneven heat dissipation of some workpieces to be processed. Utility Model Content

[0007] In order to improve the situation in the related art where, when there are multiple groups of workpieces to be processed in a mold, the criss-cross-shaped heat dissipation cavity is difficult to cover the workpieces to be processed in the middle, and some workpieces to be processed suffer from uneven heat dissipation, the present application provides a cooling structure for a capping mold to increase the coverage rate of the cooling structure in the mold and improve the situation of uneven heat dissipation of the workpieces to be processed.

[0008] The present application provides a cooling structure for a capping mold, which adopts the following technical solution:

[0009] A cooling structure for a capping mold, the capping mold comprising an upper mold, a lower mold and a mold core installed on the lower mold, a cavity group being provided in the mold core, the cavity group comprising cavity units arranged in an array, the cooling structure comprising two water inlet ports, two water outlet ports and a cooling channel provided on the lower mold, the cooling channel comprising a main channel arranged diagonally relative to the cavity group and at least three branch channels connected to the main channel, each branch channel being arranged perpendicular to the main channel on a horizontal plane, the two water inlet ports being respectively connected to two ends of the main channel, and the two water outlet ports being respectively connected to two ends of a branch channel.

[0010] Optionally, each of the branch channels is a first branch channel connected to the middle part of the main channel and second branches arranged on both sides of the first branch channel. The cooling channel has a confluence portion, the first branch channel and the main channel merge at the confluence portion, and the two water outlet ports are respectively connected to the two ends of the first branch channel.

[0011] Optionally, the water inlet port and the water outlet port are both provided with a stepped groove, and a sealing ring is provided in the stepped groove.

[0012] Optionally, a first buffer channel is provided between the main channel and the water inlet port, and the water inlet port is provided higher than a port of the main channel.

[0013] Optionally, a second buffer channel is provided between the first branch channel and the water outlet port, and the water outlet port is provided lower than a port of the first branch channel.

[0014] Optionally, diversion angles are provided at both ends of the main channel, and the two diversion angles are respectively provided on both sides of the confluence portion, and the diversion angles are respectively provided toward the corresponding water inlet ports, and isolation plates are provided at both ends of the diversion angles, and the isolation plates extend from one end away from the diversion angle to the corresponding second branch channel.

[0015] Optionally, a buffer tank for the coolant to flow into is provided at the bottom of the confluence portion.

[0016] Optionally, the confluence portion is provided with a first diverter plate, and the first diverter plate is deflected to separate the first branch channel into two parts, and the first branch channel is connected to one of the water inlet ports after being divided.

[0017] Optionally, the confluence portion is provided with a shuttle-shaped second diverter plate, both ends of which extend into both sides of the first branch channel respectively, and the second diverter plate has a diverter surface, which is arranged toward the corresponding water inlet port.

[0018] By adopting the above technical scheme, when a capping mold with multiple cavities is in operation, multiple workpieces can be formed at one time, and with the cooling structure, a large area of ​​the processing area can be covered, which not only effectively improves the cooling efficiency, but also ensures the die-casting quality of the workpieces; wherein, the cooling structure is divided into a main channel and a branch channel, and the coolant flows in from both ends of the main channel respectively, and then is discharged through the branch channel, which greatly improves the circulation efficiency of the coolant; the probability of the coolant flowing back to the water inlet port is reduced by the first buffer channel and the second buffer channel; the circulation route of the coolant is controlled by setting the first diverter plate and the second diverter plate, the structure is simple, and can meet the demand for uniform heat dissipation of multiple workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the capping mold.

[0021] Figure 2 It is an exploded view of the capping mold.

[0022] Figure 3 It is a schematic diagram of a cooling structure with a first diverter plate.

[0023] Figure 4 It is a cross-sectional view of a cooling structure having a first diverter plate.

[0024] Figure 5 It is a cross-sectional view of the water outlet port and the second buffer channel.

[0025] Figure 6 It is a schematic diagram of a cooling structure with a second diverter.

[0026] Figure 7 It is a cross-sectional view of a cooling structure with a second diverter.

[0027] In the figure: 1. upper mold; 2. lower mold; 3. mold core; 4. cavity unit; 5. water inlet port; 6. water outlet port; 7. main channel; 8. branch channel; 81. first branch channel; 82. second branch channel; 9. confluence; 10. stepped groove; 11. sealing ring; 12. first buffer channel; 13. second buffer channel; 14. diversion angle; 15. isolation plate; 16. buffer tank; 17. first diversion plate; 18. second diversion plate; 19. diversion surface. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the various embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The embodiment of the utility model provides a cooling structure for a capping mold, such as Figures 1 to 7 As shown, the capping mold includes an upper mold 1, a lower mold 2 and a mold core 3 installed on the lower mold 2, a cavity group is opened in the mold core 3, the cavity group includes an array-arranged cavity unit 4, a cooling structure includes two water inlet ports 5, two water outlet ports 6 and a cooling channel opened on the lower mold 2, the cooling channel includes a main channel 7 arranged diagonally relative to the cavity group and at least three branch channels 8 connected to the main channel 7, each branch channel 8 is arranged perpendicular to the main channel 7 on a horizontal plane, the two water inlet ports 5 are respectively connected to the two ends of the main channel 7, and the two water outlet ports 6 are respectively connected to the two ends of a branch channel 8.

[0030] Specifically, in the present embodiment, the cooling channel is used for the flow of coolant. Since the main channel 7 is arranged diagonally relative to the cavity group and a branch channel 8 is arranged along the main channel 7, the coolant can pass through each cavity unit 4 during the cooling process, thereby reducing the situation in which the coolant is difficult to carry away the heat of some cavity units 4 in the cavity group due to the relatively conventional direction of the cooling channel, thereby improving the coverage rate of the coolant in the mold and ensuring the cooling efficiency.

[0031] In a preferred embodiment of the present invention, each branch channel 8 is a first branch channel 81 connected to the middle part of the main channel 7 and each second branch channel 82 is arranged on both sides of the first branch channel 81. The cooling channel has a confluence portion 9, the first branch channel 81 and the main channel 7 intersect at the confluence portion 9, and the two water outlet ports 6 are respectively connected to the two ends of the first branch channel 81.

[0032] Specifically, in this embodiment, the coolant flows in from both ends of the main channel 7 and flows out from both ends of the first branch channel 81. Compared with the coolant flowing in from one end of the main channel 7 and flowing out from the other end of the main channel 7, the cooling structure provided in the present application makes the circulation efficiency of the coolant higher. After the circulation efficiency of the coolant is improved, the cooling efficiency of the workpiece to be processed is further improved.

[0033] In a preferred embodiment of the present utility model, the water inlet port 5 and the water outlet port 6 are both provided with a stepped groove 10 , and a sealing ring 11 is provided in the stepped groove 10 .

[0034] Specifically, in this embodiment, after the sealing ring 11 is provided, the probability of coolant leakage from the connection port is reduced, making the cooling structure more reliable.

[0035] In a preferred embodiment of the present invention, a first buffer channel 12 is provided between the main channel 7 and the water inlet port 5 , and the water inlet port 5 is provided higher than the main channel 7 .

[0036] Specifically, in this embodiment, the water inlet port 5 is arranged higher than the port of the main channel 7 to prevent the coolant from flowing back. When the coolant flows in from the water inlet port 5, the turbulence of the coolant just flowing in can be stabilized through the first buffer channel 12.

[0037] In a preferred embodiment of the present invention, a second buffer channel 13 is disposed between the first branch channel 81 and the water outlet port 6 , and the water outlet port 6 is disposed lower than the port of the first branch channel 81 .

[0038] Specifically, in this embodiment, since the water outlet port 6 is arranged lower than the port of the first branch channel 81, the coolant can be discharged from the cooling channel more easily, wherein the second buffer channel 13 plays a role in guiding the coolant to flow out.

[0039] In a preferred embodiment of the present invention, diversion angles 14 are provided at both ends of the main channel 7, the two diversion angles 14 are respectively provided on both sides of the confluence portion 9, and the diversion angles 14 are respectively provided toward the corresponding water inlet ports 5, and isolation plates 15 are provided at both ends of the diversion angles 14, and the isolation plates 15 extend from one end away from the diversion angle 14 to the corresponding second branch channel 82.

[0040] Specifically, in this embodiment, the diversion angle 14 and the isolation plate 15 are used together to separate and drain the main channel 7 and the branch channel 8, and control the coolant to flow along a preset flow direction to ensure that the coolant can cool the workpiece in each cavity unit 4 and take away the heat.

[0041] In a preferred embodiment of the present invention, a buffer pool 16 for the coolant to flow into is provided at the bottom of the confluence portion 9 .

[0042] Specifically, in this embodiment, the coolant flowing in from both ends of the main channel 7 passes through the second branch channel 82, converges at the confluence 9 and enters the buffer tank 16, and then flows out from the confluence 9 to reach both ends of the first branch channel 81 respectively. Among them, the buffer tank 16 can alleviate the situation where the coolant flowing out from both ends of the second branch channel 82 converges and impacts to form turbulence.

[0043] In a preferred embodiment of the utility model, the confluence portion 9 is provided with a first diverter plate 17 , and the first diverter plate 17 is deflected to separate the first branch channel 81 into two parts, and the first branch channel 81 is connected to a water inlet port 5 respectively after being separated.

[0044] Specifically, in the present embodiment, the coolant flowing into one end of the main channel 7 is split by the diversion angle 14 and converted into two streams of coolant. The diverted coolant flows to the two ends of the second branch channel 82 through the dividing plate, and then returns to the main channel 7 from the two ends of the second branch channel 82 to be gathered at the confluence 9, and then flows out from one of the ports of the first branch channel 81 through the buffer tank 16 under the guidance of the first diversion plate 17, so that the coolants flowing into the two ends of the main channel 7 do not interfere with each other.

[0045] In a preferred embodiment of the utility model, the confluence portion 9 is provided with a "shuttle"-shaped second diverter plate 18, the two ends of which extend to the two sides of the first branch channel 81 respectively, and the second diverter plate 18 has a diverter surface 19, which is arranged toward the corresponding water inlet port 5.

[0046] Specifically, in the present embodiment, the coolant flowing into one end of the main channel 7 is diverted by the diversion angle 14 and converted into two streams of coolant. The diverted coolant flows to the two ends of the second branch channel 82 through the dividing plate, and then returns to the main channel 7 from the two ends of the second branch channel 82 to be gathered at the confluence 9, and then flows out along the two ends of one side of the "shuttle"-shaped second diverter plate 18 under the guidance of the second diverter plate 18 through the buffer tank 16, and flows out to the two ends of the first branch channel 81; the coolant flowing into the other end of the main channel 7 is guided by the second diverter plate 18, and flows out along the two ends on the opposite side of the "shuttle"-shaped second diverter plate 18 to the two ends of the first branch channel 81.

[0047] In summary, when a capping mold with multiple cavities is in operation, multiple workpieces are formed at one time. With the cooling structure, a large area of ​​the processing area can be covered, which not only effectively improves the cooling efficiency, but also ensures the die-casting quality of the workpieces. Among them, the cooling structure is divided into a main channel 7 and a branch channel 8. The coolant flows in from both ends of the main channel 7 and is discharged through the branch channel 8, which greatly improves the circulation efficiency of the coolant. The first buffer channel 12 and the second buffer channel 13 are used to reduce the probability of the coolant flowing back to the water inlet port 5. The first diverter plate 17 and the second diverter plate 18 are set to control the circulation route of the coolant. The structure is simple and can meet the needs of uniform heat dissipation of multiple workpieces.

Claims

1. A cooling structure for a capping mold, the capping mold comprising an upper mold (1), a lower mold (2) and a mold core (3) mounted on the lower mold (2), the mold core (3) having a cavity group formed therein, the cavity group comprising cavity units (4) arranged in an array, characterized in that: The cooling structure comprises two water inlet ports (5), two water outlet ports (6) and a cooling channel opened on the lower mold (2); the cooling channel comprises a main channel (7) arranged diagonally relative to the cavity group and at least three branch channels (8) connected to the main channel (7); each branch channel (8) is arranged perpendicular to the main channel (7) on a horizontal plane; the two water inlet ports (5) are respectively connected to two ends of the main channel (7); and the two water outlet ports (6) are respectively connected to two ends of a branch channel (8).

2. The cooling structure according to claim 1, characterized in that: Each of the branch channels (8) is a first branch channel (81) connected to the middle of the main channel (7) and second branch channels (82) arranged on both sides of the first branch channel (81). The cooling channel has a confluence portion (9), the first branch channel (81) and the main channel (7) merge at the confluence portion (9), and the two water outlet ports (6) are respectively connected to the two ends of the first branch channel (81).

3. The cooling structure according to claim 2, characterized in that: The water inlet port (5) and the water outlet port (6) are both provided with a stepped groove (10), and a sealing ring (11) is provided in the stepped groove (10).

4. The cooling structure according to claim 3, characterized in that: A first buffer channel (12) is provided between the main channel (7) and the water inlet port (5), and the water inlet port (5) is arranged higher than a port of the main channel (7).

5. The cooling structure according to claim 4, characterized in that: A second buffer channel (13) is provided between the first branch channel (81) and the water outlet port (6), and the water outlet port (6) is arranged lower than the port of the first branch channel (81).

6. The cooling structure according to claim 5, characterized in that: Both ends of the main channel (7) are provided with diversion angles (14), the two diversion angles (14) are respectively arranged on both sides of the confluence portion (9), and the diversion angles (14) are respectively arranged towards the corresponding water inlet ports (5), and both ends of the diversion angles (14) are provided with isolation plates (15), and the isolation plates (15) extend from one end of the diversion angles (14) away from the diversion angles (14) to the corresponding second branch channel (82).

7. The cooling structure according to claim 6, characterized in that: A buffer pool (16) for coolant to flow into is provided at the bottom of the confluence portion (9).

8. The cooling structure according to claim 7, characterized in that: The confluence portion (9) is provided with a first flow dividing plate (17), and the first flow dividing plate (17) is deflected to divide the first branch channel (81) into two parts. After the first branch channel (81) is divided, each part is connected to one of the water inlet ports (5).

9. The cooling structure according to claim 7, characterized in that: The confluence portion (9) is provided with a shuttle-shaped second flow divider (18), the two ends of which extend into the two sides of the first branch channel (81) respectively, and the second flow divider (18) has a flow divider surface (19), and the flow divider surface (19) is arranged toward the corresponding water inlet port (5).

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