Die casting cooling equipment for automobile parts

Abstract

The invention relates to the technical field of die casting production and processing, in particular to die casting cooling equipment for automobile parts, which comprises a chain scraper conveyor and a cooling fan arranged above the chain scraper conveyor, a cooling box is arranged at the bottom of the chain scraper conveyor, and a support connected with the chain scraper conveyor is fixedly arranged on the cooling box. Cooling liquid is arranged in the cooling box, the whole chain scraper conveyor is triangular, the bottom of the chain scraper conveyor is immersed in the cooling box, the air box is arranged in the chain scraper conveyor and located at the bottom of the conveying part, a draught fan is arranged at the bottom of the air box, and the draught fan is connected with the air box; according to the die casting cooling equipment for the automobile parts, convection is formed between the cooling fan on the upper portion and the air outlet holes in the conveying plate, the cooling effect is enhanced, meanwhile, low-temperature airflow around the chain scraper conveyor is utilized through the design of the fixed cylinder, air with the low temperature is provided for the draught fan, and the cooling efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of die casting production and processing, in particular to a die casting cooling device for automobile parts. Background Art

[0002] In the field of automotive parts manufacturing, die-casting technology is widely used to efficiently produce key components such as gearbox housings. The temperature of newly-made die-castings is relatively high, and natural cooling not only takes a long time, but may also affect the efficiency of subsequent processing procedures. Therefore, factories generally adopt forced cooling measures to accelerate the cooling process.

[0003] For die castings made of certain special materials, due to their high melting point and significant thermal expansion characteristics, water cooling may cause rapid temperature changes and induce internal thermal stress, which in turn causes deformation or cracking. Therefore, air cooling becomes a more suitable choice. Air cooling dissipates heat through natural convection of air, and its gentle heat transfer method helps to maintain the geometric and dimensional accuracy of die castings.

[0004] At present, the mainstream air cooling system usually adopts a combination design of a chain plate conveyor equipped with a fan. The fan is placed above the conveyor to promote air flow and achieve the purpose of cooling. However, this type of system has inherent defects: the bottom surface of the workpiece is close to the metal plate surface of the conveyor, which greatly limits the air circulation at the bottom, resulting in poor cooling effect on the bottom surface and significant temperature difference between the upper and lower surfaces, affecting the overall cooling quality. In addition, due to its excellent thermal conductivity, the metal conveyor plate will continuously absorb the heat released by the die-casting during the long-term carrying and transmission of high-temperature die-castings. This heat is rapidly conducted and accumulated inside the metal conveyor plate, causing the overall temperature of the conveyor plate to gradually increase. As the working time increases, the continuous increase in the temperature of the conveyor plate will further reduce the temperature difference between the conveyor plate and the die-casting, thereby reducing the heat transfer efficiency. Especially in continuous production operations, the metal conveyor plate cannot effectively dissipate the absorbed heat, causing heat accumulation, further aggravating the heat exchange barrier during the cooling process of the die-casting. For this reason, we propose a die-casting cooling device for automotive parts. Summary of the invention

[0005] In order to solve the above technical problems, the embodiment of the present application provides a die-casting cooling device for automotive parts, including a chain plate conveyor and a cooling fan arranged above the chain plate conveyor, a cooling box is arranged at the bottom of the chain plate conveyor, a bracket connected to the chain plate conveyor is fixedly arranged on the cooling box, and a coolant is arranged in the cooling box. The chain plate conveyor is triangular in shape as a whole and the bottom is immersed in the cooling box. The chain plate conveyor includes chains on both sides and a plurality of conveying plates arranged between the chains, and also includes:

[0006] An air box is arranged in the chain conveyor and located at the bottom of the conveying part. A fan is arranged at the bottom of the air box and is connected to the air box.

[0007] A fixed block and a movable block, wherein the fixed block is fixedly arranged on the conveying plate, and the movable block is slidably arranged on the conveying plate. The upper surface of the air box is stepped. When the conveying plate drives the movable block to move, the bottom of the movable block contacts the upper surface of the air box to move up and down, and cooperates with the fixed block to realize alternating support for the die casting.

[0008] In some embodiments, the chain conveyor includes a conveying section, a descending section, and an ascending section. The bottom connection between the descending section and the ascending section is immersed in a cooling box, and the fan is arranged at the ascending section.

[0009] In some embodiments, the fixing block is a hollow structure with a closed top and an open bottom, and a plurality of through holes are provided on the outside of the fixing block, and the plurality of through holes are arranged in a circular array on the outside of the fixing block.

[0010] In some embodiments, the movable block is slidably arranged on the conveying plate, a connecting ring is fixedly arranged on the bottom of the movable block, a slot for inserting the connecting ring is opened at the bottom of the conveying plate, the movable block is a hollow structure with a closed top and an open bottom, a reset spring is arranged on the connecting ring, a limiting block is arranged on the outer side of the top of the movable block, and a plurality of air outlet holes are also opened on the movable block.

[0011] In some embodiments, the air outlet is located on a side of the movable block facing the conveying direction of the chain conveyor, and the through hole and the air outlet are both arranged to be inclined upward.

[0012] In some embodiments, a plurality of grooves are provided on the upper surface of the air box, and the plurality of grooves are all located on the moving route of the movable block, and inclined surfaces are provided on both sides of the grooves.

[0013] In some embodiments, a plurality of connecting holes are provided on the air box, and the plurality of connecting holes are arranged along the conveying direction of the fixed block and the movable block, and the connecting holes arranged along the track of the fixed block and the connecting holes arranged along the track of the movable block are staggered on the air box, and connecting parts are arranged in the connecting holes, and when the fixed block and the movable block contact with the connecting parts, the connecting parts open the connecting holes to connect them with the fixed block and the movable block.

[0014] In some embodiments, the connecting member includes a fixing ring fixedly arranged on the inner wall of the connecting hole, a blocking block is slidably arranged in the fixing ring, vertical rods sliding through the fixing ring are fixedly connected on both sides of the blocking block, a slope is provided on the top of the vertical rod, a horizontal plate is fixedly arranged in the connecting hole, a V-shaped spring plate is provided on the horizontal plate, and the top of the V-shaped spring plate abuts against the bottom of the blocking block.

[0015] In some embodiments, the suction side of the fan is connected to a fixed cylinder, and the fixed cylinder is set on a bracket. The ascending section of the chain conveyor movably passes through the fixed cylinder. An air duct is opened in the fixed cylinder, and the air duct is connected to the suction side of the fan. The top opening of the fixed cylinder is larger than its bottom opening.

[0016] In some embodiments, a brush for wiping off residual coolant on the conveying plate is fixedly provided on the bracket, and the brush is located in the ascending section of the chain conveyor.

[0017] The present invention has at least the following beneficial effects:

[0018] 1. Improve cooling efficiency: The cooling box and heat exchange circulation equipment installed at the bottom of the chain conveyor effectively reduce the temperature of the conveyor plate, thereby improving the heat transfer efficiency between the die casting and the conveyor plate and accelerating the cooling process of the die casting;

[0019] 2. Ensure cooling uniformity: The fixed blocks and movable blocks set on the conveying plate, as well as their cooperation with the air box, realize the alternating support and all-round cooling of the bottom of the die casting, avoid local temperature differences, and improve the cooling quality;

[0020] 3. Optimize airflow utilization: The cooling fan above forms convection with the air outlet holes on the conveyor plate, which enhances the cooling effect. At the same time, the design of the fixed cylinder utilizes the low-temperature airflow around the chain conveyor to provide the fan with lower temperature air, further improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a side view structural schematic diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the partial structure of the chain conveyor of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the conveying plate of the present invention;

[0025] Figure 5 It is a schematic diagram of a partial cross-sectional structure of a conveying plate of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the movable block of the present invention;

[0027] Figure 7 It is a schematic diagram of the air box structure of the present invention;

[0028] Figure 8 It is a schematic diagram of the cross-sectional structure of the air box of the present invention;

[0029] Fig. 9 For the present invention Figure 8 The enlarged structural diagram at A in the middle;

[0030] Fig.10 This is a schematic diagram of the fixed cylinder structure of the present invention;

[0031] Fig.11 It is a structural schematic diagram of the ascending section of the chain conveyor of the present invention.

[0032] In the figure: 1-chain conveyor; 101-conveying section; 102-descending section; 103-ascending section; 2-cooling fan; 3-cooling box; 4-conveying plate; 5-air box; 6-fan; 7-fixed block; 8-movable block; 9-connecting piece; 91-fixing ring; 92-blocking block; 93-vertical rod; 94-cross plate; 95-V-shaped spring; 10-through hole; 11-connecting ring; 12-reset spring; 13-limiting block; 14-air outlet; 15-groove; 16-connecting hole; 17-fixed cylinder; 18-air duct; 19-brush. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1-Figure 10The present invention provides a technical solution: a die-casting cooling device for automobile parts, comprising a chain conveyor 1 and a cooling fan 2 arranged above the chain conveyor 1. When the chain conveyor 1 drives the die-casting to move, the cooling fan 2 above will cool the die-casting. Since the chain conveyor 1 is made of metal, it has a strong heat conductivity. During a long period of work, it absorbs heat from the die-casting, resulting in a high heat of its own. Therefore, a cooling box 3 is arranged at the bottom of the chain conveyor 1, and a bracket connected to the chain conveyor 1 is fixedly arranged on the cooling box 3. A coolant is arranged in the cooling box 3. The chain conveyor 1 is a triangular shape as a whole. And the bottom is immersed in the cooling box 3, so that a section of the chain conveyor 1 is immersed in the coolant, which can be cooled, wherein the cooling box 3 is connected to the existing heat exchange circulation equipment to ensure the temperature of the coolant. It should be noted that in order to avoid the situation where the temperature difference between the chain conveyor 1 and the die-casting is too high, resulting in defects in the die-casting, the heat exchange circulation equipment needs to be equipped with a temperature control system to make the temperature of the chain conveyor 1 after being immersed in the coolant suitable to avoid the temperature difference between the chain conveyor 1 and the die-casting being too high. The chain conveyor 1 includes chains on both sides and multiple conveying plates 4 arranged between the chains. The multiple conveying plates 4 move along the chain direction to realize the conveyance of the die-casting.

[0035] The chain conveyor 1 includes a conveying section 101, a descending section 102 and an ascending section 103. The bottom connection between the descending section 102 and the ascending section 103 is immersed in the cooling box 3. The fan 6 is arranged at the ascending section 103. An air box 5 is arranged below the bottom of the conveying section 101. The air box 5 is connected to the fan 6, and air is transported into the air box 5 through the fan 6.

[0036] A fixed block 7 and a movable block 8 are provided on the conveying plate 4. The fixed block 7 is fixedly connected to the conveying plate 4. The movable block 8 is slidably arranged on the conveying plate 4. The upper surface of the air box 5 is stepped. When the conveying plate 4 drives the movable block 8 to move, the bottom of the movable block 8 contacts the upper surface of the air box 5 and moves up and down, cooperating with the fixed block 7 to realize alternating support for the die-casting.

[0037] The fixed block 7 is a hollow structure with a closed top and an open bottom, and a plurality of through holes 10 are provided on the outside of the fixed block 7. The plurality of through holes 10 are arranged in a circular array on the outside of the fixed block 7. When the fixed block 7 is connected to the air box 5, the gas in the air box 5 is ejected through the through holes 10 on the fixed block 7 to cool the bottom of the die casting.

[0038] A plurality of grooves 15 are formed on the upper surface of the air box 5 . The plurality of grooves 15 are all located on the moving route of the movable block 8 , and inclined surfaces are formed on both sides of the grooves 15 .

[0039] The movable block 8 is slidably arranged on the conveying plate 4, a connecting ring 11 is fixedly arranged at the bottom of the movable block 8, a notch for the connecting ring 11 to be placed is provided at the bottom of the conveying plate 4, the movable block 8 is a hollow structure with a closed top and an open bottom, a reset spring 12 is provided on the connecting ring 11, a limit block 13 is provided on the outer side of the top of the movable block 8, and a plurality of air outlet holes 14 are also provided on the movable block 8. When the conveying plate 4 moves, the movable block 8 is driven to move. When the movable block 8 passes through the surface of the air box 5, its bottom is squeezed to drive the connecting ring 11 to move upward, and the connecting ring 11 squeezes the reset spring 12 and drives the movable block 8 to move upward at the same time. At this time, the top of the movable block 8 The movable block 8 abuts against the top of the die-casting to support it, and the fixed block 7 no longer supports the die-casting. At this time, the air in the air box 5 is ejected through the air outlet 14 on the movable block 8 to cool the bottom of the die-casting, and also cools the places that cannot be blown by the through hole 10. The two cooperate with each other to achieve comprehensive cooling of the bottom of the die-casting to avoid local temperature differences. When the conveying plate 4 drives the movable block 8 to continue to move into the groove 15, the reset spring piece 12 drives the movable block 8 to reset, and the fixed block 7 supports the die-casting again. In this way, alternating support and all-round cooling of the bottom of the die-casting are achieved.

[0040] The air outlet 14 is located on the side of the movable block 8 facing the conveying direction of the chain conveyor 1. During cooling, the airflow blown out by the cooling fan 2 above can convect with the airflow blown out of the air outlet 14, and the through hole 10 and the air outlet 14 are both inclined upward, so that the airflow can be blown toward the bottom surface of the die-casting.

[0041] A plurality of connecting holes 16 are provided on the air box 5, and the plurality of connecting holes 16 are arranged along the conveying direction of the fixed block 7 and the movable block 8, and the connecting holes 16 arranged along the track of the fixed block 7 and the connecting holes 16 arranged along the track of the movable block 8 are staggered on the air box 5, and a connecting piece 9 is arranged in the connecting hole 16. When the fixed block 7 and the movable block 8 are in contact with the connecting piece 9, the connecting piece 9 opens the connecting hole 16 to connect it with the fixed block 7 and the movable block 8.

[0042] The connecting member 9 includes a fixing ring 91 fixedly arranged on the inner wall of the connecting hole 16, a blocking block 92 is slidably arranged in the fixing ring 91, vertical rods 93 sliding through the fixing ring 91 are fixedly connected on both sides of the blocking block 92, and the top of the vertical rod 93 is provided with an inclined surface, and a horizontal plate 94 is fixedly arranged in the connecting hole 16, and a V-shaped spring piece 95 is provided on the horizontal plate 94, and the top of the V-shaped spring piece 95 abuts against the bottom of the blocking block 92.

[0043] When the chain conveyor 1 is running, the conveying plate 4 drives the fixed block 7 and the movable block 8 to move. When the fixed block 7 and the movable block 8 pass above the connecting hole 16, the bottom of the fixed block 7 and the movable block 8 will abut against the vertical rod 93 to move it downward. The vertical rod 93 drives the blocking block 92 to move downward so that the blocking block 92 and the fixed ring 91 are offset, thereby realizing the conduction of the connecting hole 16, so that the air in the air box 5 is ejected from the fixed block 7 or the movable block 8 through the connecting hole 16.

[0044] The suction side of the fan 6 is connected with a fixed cylinder 17, which is arranged on a bracket. The ascending section 103 of the chain plate conveyor 1 movably penetrates the fixed cylinder 17. An air duct 18 is provided in the fixed cylinder 17, and the air duct 18 is connected with the suction side of the fan 6. The top opening of the fixed cylinder 17 is larger than the bottom opening. When the fan 6 is started, the fan 6 will inhale the airflow and then blow it out. If the temperature of the inhaled airflow is low, the temperature of the blown airflow is also low. Therefore, the suction side of the fan 6 is arranged at the ascending section 103. This is because the chain plate conveyor 1 is When cooled by the coolant, its own temperature will drop and the surrounding temperature will also drop. At the same time, coolant will remain on the conveying plate 4 of the chain conveyor 1. The airflow is driven by the fan 6, and the air duct 18 of the fixed cylinder 17 is arranged on both sides of the interior thereof. The coolant remaining on the conveying plate 4 can be separated from the conveying plate 4 by the airflow, so that no coolant will remain on the surface of the conveying plate 4, thereby avoiding the coolant directly contacting the die-casting, causing it to cool down quickly and produce defects. At the same time, it can also provide the fan 6 with air at a lower temperature.

[0045] The working principle of the present invention is that the die casting is driven and moved by the chain plate conveyor 1, and the cooling fan 2 above performs preliminary cooling on the die casting. The chain plate conveyor 1 is designed as a triangle, and the bottom is immersed in the cooling box 3. The conveying plate 4 is maintained at a suitable temperature by the coolant and the heat exchange circulation equipment. The conveying plate 4 is provided with a fixed block 7 and a movable block 8, which cooperate with the air box 5 to achieve alternating support and all-round cooling of the bottom of the die casting. When the conveying plate 4 drives the fixed block 7 and the movable block 8 to move, they will contact the connecting piece 9 in the connecting hole 16 on the air box 5, so that the air in the air box 5 is ejected through the through hole 10 and the air outlet 14 on the fixed block 7 or the movable block 8, and the bottom of the die casting is cooled. At the same time, the fan 6 at the ascending section 103 of the chain plate conveyor 1 inhales the low-temperature airflow cooled by the coolant in the surrounding area, blows it out through the air duct 18, and forms convection with the cooling fan 2 above, thereby enhancing the cooling effect. The entire cooling process is both efficient and uniform, ensuring the cooling quality of the die casting.

[0046] Example 2: Please refer to Fig.11, Example 2 has the same main structure as Example 1, except that a brush 19 for wiping off residual coolant on the conveying plate 4 is fixedly provided on the bracket, and the brush 19 is located in the ascending section 103 of the chain conveyor 1. The setting of the brush 19 can effectively wipe off the residual coolant stains on the conveying plate 4 to prevent these residues from contaminating the die-casting or affecting the cooling effect during the subsequent conveying process. At the same time, the brush 19 can also brush off the dust remaining on the surface of the die-casting to ensure the cleanliness of the surface of the die-casting, which is beneficial to subsequent processing and quality inspection.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A die casting cooling device for automobile parts, comprising a chain conveyor (1) and a cooling fan (2) arranged above the chain conveyor (1), characterized in that: A cooling box (3) is arranged at the bottom of the chain conveyor (1), a bracket connected to the chain conveyor (1) is fixedly arranged on the cooling box (3), and a cooling liquid is arranged in the cooling box (3). The chain conveyor (1) is triangular in shape as a whole and its bottom is immersed in the cooling box (3). The chain conveyor (1) includes chains on both sides and a plurality of conveyor plates (4) arranged between the chains, and also includes: An air box (5) is arranged in the chain conveyor (1) and located at the bottom of the conveying part. A fan (6) is arranged at the bottom of the air box (5), and the fan (6) is connected to the air box (5); A fixed block (7) and a movable block (8), wherein the fixed block (7) is fixedly arranged on the conveying plate (4), and the movable block (8) is slidably arranged on the conveying plate (4); the upper surface of the air box (5) is stepped; when the conveying plate (4) drives the movable block (8) to move, the bottom of the movable block (8) contacts the upper surface of the air box (5) to achieve up and down movement, and cooperates with the fixed block (7) to achieve alternating support for the die casting.

2. The die casting cooling device for automobile parts according to claim 1, characterized in that: The chain conveyor (1) comprises a conveying section (101), a descending section (102) and an ascending section (103); the bottom connection between the descending section (102) and the ascending section (103) is immersed in a cooling box (3); and the fan (6) is arranged at the ascending section (103).

3. The die casting cooling device for automobile parts according to claim 2, characterized in that: The fixing block (7) is a hollow structure with a closed top and an open bottom, and a plurality of through holes (10) are provided on the outside of the fixing block (7). The plurality of through holes (10) are arranged in a circular array on the outside of the fixing block (7).

4. The die casting cooling device for automobile parts according to claim 3, characterized in that: The movable block (8) is slidably arranged on the conveying plate (4); a connecting ring (11) is fixedly arranged on the bottom of the movable block (8); a notch for the connecting ring (11) to be placed is provided on the bottom of the conveying plate (4); the movable block (8) is a hollow structure with a closed top and an open bottom; a reset spring (12) is provided on the connecting ring (11); a limit block (13) is provided on the outer side of the top of the movable block (8); and a plurality of air outlet holes (14) are also provided on the movable block (8).

5. The die casting cooling device for automobile parts according to claim 4, characterized in that: The air outlet hole (14) is located on one side of the movable block (8) facing the conveying direction of the chain conveyor (1), and the through hole (10) and the air outlet hole (14) are both arranged to be inclined upward.

6. The die casting cooling device for automobile parts according to claim 5, characterized in that: The upper surface of the air box (5) is provided with a plurality of grooves (15), the plurality of grooves (15) are all located on the moving route of the movable block (8), and inclined surfaces are provided on both sides of the grooves (15).

7. The die casting cooling device for automobile parts according to claim 6, characterized in that: The air box (5) is provided with a plurality of connection holes (16), and the plurality of connection holes (16) are arranged along the conveying direction of the fixed block (7) and the movable block (8), and the connection holes (16) arranged along the track of the fixed block (7) and the connection holes (16) arranged along the track of the movable block (8) are arranged alternately on the air box (5), and a connecting piece (9) is arranged in the connection hole (16), and when the fixed block (7) and the movable block (8) are in contact with the connecting piece (9), the connecting piece (9) opens the connection hole (16) to communicate with the fixed block (7) and the movable block (8).

8. The die casting cooling device for automobile parts according to claim 7, characterized in that: The connecting member (9) comprises a fixing ring (91) fixedly arranged on the inner wall of the connecting hole (16), a blocking block (92) being slidably arranged in the fixing ring (91), vertical rods (93) slidingly penetrating the fixing ring (91) being fixedly connected on both sides of the blocking block (92), the top of the vertical rod (93) being provided with an inclined surface, a horizontal plate (94) being fixedly arranged in the connecting hole (16), a V-shaped spring sheet (95) being provided on the horizontal plate (94), and the top of the V-shaped spring sheet (95) abutting against the bottom of the blocking block (92).

9. The die casting cooling device for automobile parts according to claim 8, characterized in that: The suction side of the fan (6) is connected to a fixed cylinder (17), the fixed cylinder (17) is arranged on a bracket, the ascending section (103) of the chain conveyor (1) movably passes through the fixed cylinder (17), an air duct (18) is provided in the fixed cylinder (17), the air duct (18) is connected to the suction side of the fan (6), and the top opening of the fixed cylinder (17) is larger than the bottom opening thereof.

10. The die casting cooling device for automobile parts according to claim 9, characterized in that: A brush (19) for wiping off residual coolant on the conveying plate (4) is fixedly arranged on the bracket, and the brush (19) is located in the ascending section (103) of the chain conveyor (1).

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