Cooling system for hub forging die

Abstract

The invention relates to the technical field of die bottom plate heat dissipation devices, in particular to a cooling system for a hub forging die, which comprises a die bottom plate and a heat dissipation box arranged on one side of the die bottom plate, a heat dissipation pipe is arranged in the heat dissipation box, the heat dissipation pipe comprises a plurality of long pipes and short pipes, and the short pipes are used for connecting two adjacent long pipes; an opening and closing ball is rotationally connected into the short pipe, the opening and closing ball is provided with a communicating channel in the diameter direction, and the inner wall of the short pipe is provided with a matching block used for blocking the communicating channel after the opening and closing ball rotates. The cooling device has the following beneficial effects that a cooling medium flows through the combination of the long pipes and the short pipes for cooling, and the heat dissipation effect is low under the condition that the flow speed is the same; or the multiple short pipes are closed, the cooling medium flows through each long pipe, the flow amount of the cooling medium is large within the same time, the heat dissipation effect can be improved, different heat dissipation modes can be selected under different conditions, and the working temperature of the mold bottom plate can be conveniently controlled.

Description

Technical Field

[0001] The technical field of the die bottom plate heat dissipation device of the present application particularly relates to a cooling system for a wheel hub forging die. Background Art

[0002] Currently in the wheel hub industry, there are many manufacturing methods for wheels, such as casting, forging, and spinning. Among them, forged wheels are particularly valued by the wheel hub industry because of their light weight and high strength. Forged wheels are a process in which preheated aluminum ingots are placed on a mold and forged multiple times to finally form a wheel hub.

[0003] After multiple forgings, the heat on the mold is very high and needs to be cooled. However, since the forging procedures of different wheels are slightly different during the production process, temperature control is also required during the cooling process to meet the process requirements. Summary of the invention

[0004] In order to be able to adjust the heat dissipation effect according to actual conditions, the present application provides a cooling system for a wheel hub forging die.

[0005] The present application provides a cooling system for a wheel hub forging die, which adopts the following technical solution: a cooling system for a wheel hub forging die, comprising a die bottom plate, a heat sink arranged on one side of the die bottom plate, a heat sink arranged in the heat sink, the heat sink comprising a plurality of long tubes and short tubes, the short tube being used to connect two adjacent long tubes; An opening and closing ball is rotatably connected in the short tube, and the opening and closing ball has a connecting channel along the diameter direction. The inner wall of the short tube has a matching block for blocking the connecting channel after the opening and closing ball rotates.

[0006] By adopting the above technical solution, in the first case, the cooling medium flows through a combination of long tubes and short tubes for cooling, and the overall shape is serpentine. Under the condition of the same flow rate, the heat dissipation effect is low. In the second case, the opening and closing balls in the short tubes are rotated to close multiple short tubes and flow through each long tube. In the same time, the flow rate of the cooling medium is large, which can improve the heat dissipation effect. Different heat dissipation modes can be selected in different situations to facilitate the control of the working temperature of the mold base.

[0007] Preferably, the rotation axis of the opening and closing ball is perpendicular to the axis of the short tube, and when the connecting channel moves to be parallel to the axis of the short tube, it is in an open state.

[0008] Preferably, the matching blocks are symmetrically arranged on the inner walls of both sides of the short tube, and after the opening and closing ball rotates 90 degrees, the inner walls of the matching blocks seal the ends of the connecting channel.

[0009] Preferably, a scraping block is slidably connected inside the long tube, the outer wall of the scraping block is used to resist and scrape impurities on the inner wall of the long tube, and the middle position of the scraping block has an avoidance channel for liquid circulation.

[0010] Preferably, the end of the long tube has a fixing device for fixing the scraping block.

[0011] Preferably, the fixing device comprises a magnetic member for adsorbing the scraping block and a bolt disposed on the long tube and threadedly connected to the scraping block.

[0012] Preferably, the outer wall of the scraping block has a plurality of protrusions.

[0013] Preferably, an adjusting cylinder is coaxially rotatably connected to the outer side of the scraping block, and the outer wall of the adjusting cylinder has the convex point.

[0014] In summary, the present application includes at least one of the following beneficial technical effects: 1. By switching between two states, the heat dissipation effect of the heat dissipation box can be adjusted. At high temperatures, the heat dissipation effect can be improved by increasing the flow rate of the cooling medium per unit time. At low temperatures, the heat dissipation can be delayed to ensure a better working temperature. 2. In the long tube, the scraper block can be used to easily clean the dirt and impurities adhering to the inner wall to ensure that the heat dissipation effect of the heat sink is more ideal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the structure after the heat sink is hidden in this application; Figure 3 It is a schematic diagram of the structure inside the short tube; Figure 4 It is a schematic diagram of the local structure of the long tube; Figure 5 It is a schematic diagram of the internal structure of the long tube.

[0016] Explanation of the reference numerals: 100, mold base plate; 110, heat sink; 111, heat dissipation pipe; 112, long pipe; 113, short pipe; 114, opening and closing ball; 115, connecting channel; 116, matching block; 120, scraping block; 121, avoidance channel; 122, adjusting cylinder; 123, protrusion; 124, traction rope; 125, magnetic part; 126, bolt. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in conjunction with the accompanying drawings.

[0018] The present application embodiment discloses a cooling system for a wheel hub forging die, referring to Figure 1 , Figure 2 , including a mold base plate 100, and a heat sink 110 disposed on one side of the mold base plate 100. Generally, the heat sink 110 is disposed on the back side of the working surface of the mold base plate 100. A heat sink 111 is disposed in the heat sink 110. The heat sink 111 includes a plurality of long tubes 112 and short tubes 113. The long tubes 112 and the short tubes 113 are directly in contact with the side of the mold base plate 100.

[0019] The short tube 113 is used to connect two adjacent long tubes 112, and the long tube 112 and the short tube 113 form a serpentine shape in sequence. On and off valves are provided at both ends of the long tube 112 to connect or close the flow of the cooling medium.

[0020] Reference Figure 3 , an opening and closing ball 114 is rotatably connected in the short tube 113, and the opening and closing ball 114 has a connecting channel 115 along the diameter direction. The inner wall of the short tube 113 has a matching block 116 for blocking the connecting channel 115 after the opening and closing ball 114 rotates. The opening and closing ball 114 can be rotated manually or by a motor, and the rotation axis of the opening and closing ball 114 is perpendicular to the axis of the short tube 113. The shape of the matching block 116 is that one side is fixed to the inner wall of the short tube 113, and the opposite side is an arc surface that cooperates with the opening and closing ball 114. When the opening and closing ball 114 rotates to the open state, the connecting channel 115 will be parallel to the axial direction of the short tube 113. When rotating ninety degrees, the end of the connecting channel 115 will be sealed by the inner wall of the matching block 116.

[0021] It is worth noting that under the condition of the same flow rate, when the long tube 112 is connected to the short tube 113, the whole is serpentine, and the on-off valves of the long tube 112 at the front and rear ends are opened to form a one-way flow. At this time, the heat dissipation effect is relatively low, which is suitable for heat dissipation in non-high temperature environments.

[0022] When a better heat dissipation effect is needed, the opening and closing ball 114 rotates to close the short tube 113 and only open the long tube 112, and the opening and closing valves at both ends of each long tube 112 are opened. In this way, at the same flow rate, the total amount of cooling medium flowing per unit time is increased, and the heat can be taken away more quickly. Under the premise of increasing the use of cooling medium, better heat dissipation can be achieved, which is suitable for situations in high temperature environments.

[0023] Due to long-term use, Figure 4 , Figure 5 , there is often scale or other impurities on the inner wall of the heat dissipation tube 111, and the presence of impurities will affect the heat exchange effect. Therefore, the scale needs to be cleaned in time, but the cleaning inside the pipe is more troublesome. Therefore, in this embodiment, a scraping block 120 is provided in the long tube 112, and the scraping block 120 is slidably connected inside the long tube 112 to resist and scrape impurities on the inner wall.

[0024] In order not to affect the flow of the cooling medium, the scraper block 120 has an escape channel 121 for liquid circulation in the middle. The outer wall of the scraper block 120 is coaxially connected to an adjustment cylinder 122, and the outer wall of the adjustment cylinder 122 has a convex point 123. The convex point 123 is made of rubber material and can squeeze and scrape scale and impurities on the inner wall of the long tube 112.

[0025] Specifically, the scraper block 120 moves inside by means of a traction rope 124, and the end of the traction rope 124 is fixed to the end of the scraper block 120. The scraper block 120 moves from one end to the other end by pulling, thereby making the protrusion 123 work.

[0026] The end of one end of the long tube 112 has a fixing device for fixing the scraper block 120. The fixing device includes a magnetic piece 125 for adsorbing the scraper block 120 and a bolt 126 arranged on the long tube 112 and threadedly connected to the scraper block 120. The end of the scraper block 120 is also provided with a corresponding magnetic piece 125, which can be adsorbed with the magnetic piece 125 located at the end of the long tube 112. At the same time, when adsorbed, the two are in a corresponding adsorption state, and the circumferential position when fixed can be determined. At this time, it can be fixed by the bolt 126, which will not affect the flow of the cooling medium.

[0027] After the convex point 123 is scraped, there are still some places in the middle that are not scraped, so the middle adjustment tube 122 can be rotated to make the convex point 123 rotate. After moving again, different positions can be scraped to form a better scraping effect. The specific rotation structure is a threaded connection. The adjustment tube 122 is threadedly connected to the scraping block 120. There is a handle exposed on the adjustment tube 122. The position of the convex point 123 in the circumferential direction can be changed by rotating. The above adjustment process is performed when the water inlet pipe at the end of the long tube 112 is removed.

[0028] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cooling system for a wheel hub forging die, comprising a die bottom plate (100), a heat sink (110) arranged on one side of the die bottom plate (100), and characterized in that: A heat dissipation pipe (111) is arranged in the heat dissipation box (110), and the heat dissipation pipe (111) comprises a plurality of long pipes (112) and short pipes (113), and the short pipe (113) is used to connect two adjacent long pipes (112); An opening and closing ball (114) is rotatably connected inside the short tube (113), the opening and closing ball (114) has a connecting channel (115) along the diameter direction, and the inner wall of the short tube (113) has a matching block (116) for blocking the connecting channel (115) after the opening and closing ball (114) rotates.

2. A cooling system for a wheel hub forging die according to claim 1, characterized in that: The rotation axis of the opening and closing ball (114) is perpendicular to the axis of the short tube (113), and when the connecting channel (115) moves to be parallel to the axis of the short tube (113), it is in an open state.

3. A cooling system for a wheel hub forging die according to claim 2, characterized in that: The matching blocks (116) are symmetrically arranged on the inner walls of both sides of the short tube (113); after the opening and closing ball (114) rotates 90 degrees, the inner walls of the matching blocks (116) seal the ends of the connecting channel (115).

4. A cooling system for a wheel hub forging die according to claim 1 or 3, characterized in that: A scraping block (120) is slidably connected inside the long tube (112); the outer wall of the scraping block (120) is used to contact and scrape impurities on the inner wall of the long tube (112); and a bypass channel (121) for liquid circulation is provided in the middle of the scraping block (120).

5. A cooling system for a wheel hub forging die according to claim 4, characterized in that: The end of the long tube (112) is provided with a fixing device for fixing the scraping block (120).

6. A cooling system for a wheel hub forging die according to claim 5, characterized in that: The fixing device comprises a magnetic member (125) for adsorbing the scraping block (120) and a bolt (126) arranged on the long tube (112) and for being threadedly connected to the scraping block (120).

7. A cooling system for a wheel hub forging die according to claim 6, characterized in that: The outer wall of the scraping block (120) has a plurality of protrusions (123).

8. A cooling system for a wheel hub forging die according to claim 7, characterized in that: An adjusting cylinder (122) is coaxially rotatably connected to the outside of the scraping block (120), and the outer wall of the adjusting cylinder (122) has the convex point (123).

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