Cooling device for weaving machine accessory die-casting equipment

Abstract

The invention relates to the technical field of die casting machining and cooling, in particular to a cooling device for weaving machine accessory die casting equipment, which comprises an outer-layer mounting shell, the outer-layer mounting shell is composed of a lower base and an upper cooling shell, and two conveyor belt devices which are distributed in parallel left and right are mounted at the upper part in the base; a first cooling mechanism is arranged on the lower portion in the base, and a second cooling mechanism is arranged in the cooling shell. A reciprocating motion mechanism is arranged in the middle of the interior of the base, two movable shells are installed at the movable end of the reciprocating motion mechanism, a front supporting mechanism and a rear supporting mechanism are arranged above the conveying belt device, and each supporting mechanism comprises two supporting nets distributed in a bilateral symmetry mode. According to the invention, through the innovation of dynamic transmission, self-adaptive support and intelligent airflow, an efficient and uniform die casting cooling system is constructed; the problems of oxidation and uneven heat dissipation are solved through conveyor belt punching and nitrogen protection, the electric telescopic rods are dynamically positioned to adapt to special-shaped die castings, and thermal stress and cooling blind areas are eliminated through multi-fan intelligent control.

Description

Technical Field

[0001] The present invention relates to the technical field of processing and cooling of die-cast parts, and in particular to a cooling device for a die-casting equipment for loom accessories. Background Art

[0002] Metal die-castings are usually produced continuously. After the molten metal is smelted, it is sent to the side of the die-casting machine and poured into the die-casting machine for continuous die-casting to continuously produce metal die-castings; in the die-casting automated production line, it is necessary to cool the formed metal die-castings to facilitate subsequent processing.

[0003] For example, Chinese Patent with publication number CN205270805U discloses an air-cooling device for aluminum alloy die-castings, which includes a frame body, a heat preservation cover, a conveyor belt and a suction fan. A horizontal conveyor belt is provided at the top of the frame body. The conveyor belt is a metal mesh conveyor belt, and a number of metal cross bars are evenly distributed on the surface of the conveyor belt. A heat preservation cover is provided in the middle of the conveyor belt. The heat preservation cover has openings only on the left and right sides. A fan is provided on the front side of the heat preservation cover, and a protective cover is provided on the fan. A digital display thermometer is provided in the middle of the front side of the heat preservation cover. The temperature measuring component of the digital display thermometer is arranged inside the heat preservation cover. In addition, a collection tank is provided below the frame body, and a metal mesh is provided above the collection tank; an air suction cover is provided corresponding to the fan at the rear side of the heat preservation cover.

[0004] However, there are some deficiencies in the above patent. During the process of air-cooling the die-cast parts after heat treatment, the die-cast parts will come into contact with the air. After coming into contact with the air, an oxide layer will be generated on the surface of the die-cast parts. At this time, if directly air-cooled with a fan, due to the oxide layer attached to the surface of the die-cast parts, the air reception is uneven, resulting in uneven cooling of each part of the die-cast parts, which will affect the performance of the die-cast parts. At the same time, due to the contact between the die-cast parts and the conveyor belt, it is difficult for the air-cooling air flow to enter the contact position between the die-cast parts and the conveyor belt, affecting the cooling efficiency and causing uneven cooling effects on each part of the die-cast parts. Summary of the Invention

[0005] The purpose of the present invention is to solve the above problems existing in the prior art, and to propose a cooling device for a die-casting equipment for loom accessories.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solution: A cooling device for a die-casting equipment for loom accessories, which includes an outer installation housing. The outer installation housing is composed of a base below and a cooling housing above, and a tunnel-shaped design is formed between the two. Two conveyor belt devices are installed horizontally in parallel above the interior of the base. There is a gap between the two conveyor belt devices. A first cooling mechanism is provided below the interior of the base, and a second cooling mechanism is provided inside the cooling housing; A reciprocating mechanism is provided at the middle position inside the base. Two moving shells are installed at the moving end of the reciprocating mechanism. An annular shell is fixedly installed at the middle position of the moving shell. A first external tooth ring is rotatably installed above the interior of the annular shell, and a second external tooth ring is rotatably installed below the interior. The first external tooth ring and the second external tooth ring are driven by a driving mechanism installed inside the moving shell. A first longitudinal support portion is provided on the inner side wall of the first external tooth ring, and a second longitudinal support portion is provided on the inner side wall of the second external tooth ring. Gaskets are rotatably connected to the tops of the first longitudinal support portion and the second longitudinal support portion. There are two front and rear support mechanisms above the conveyor belt device. The support mechanism includes two support nets that are symmetrically distributed left and right. The support nets span the corresponding conveyor belt device. One end of the support net close to the gap is slidably connected to the side wall of one end of the conveyor belt device, and the other end of the support net away from the gap is slidably connected to the side wall of the other end of the conveyor belt device through a lifting component. An adsorption component is provided between the lower end of the lifting component and the corresponding moving shell.

[0007] Preferably, the type of the conveyor belt in the conveyor belt device is a stainless steel perforated chain plate conveyor belt. The two ends of the die-casting are respectively placed on the corresponding conveyor belt devices, and the middle is located above the gap between the two conveyor belt devices.

[0008] Preferably, the first cooling mechanism includes second fans fixedly installed on both sides below the interior of the base. The two second fans are arranged in mirror symmetry and both face the side of the conveyor belt device. A plurality of third fans are fixedly installed between the two second fans, and all the third fans face the side of the conveyor belt device.

[0009] Preferably, the second cooling mechanism includes an inner layer installation shell fixedly installed inside the cooling shell. A plurality of first fans are installed on both the left and right side walls of the inner layer installation shell. A cavity is formed between the inner layer installation shell and the top wall inside the cooling shell. An air inlet pipe communicating with its interior is fixedly installed at the top of the cooling shell. The air inlet pipe is used to continuously introduce high-purity low-temperature nitrogen into the cavity. A plurality of fourth fans are arranged in a staggered manner on the top wall of the inner layer installation shell. Ventilation windows are installed on both the left and right side walls of the cooling shell.

[0010] Preferably, a plurality of micro motors are evenly distributed at equal angles inside the second fan, the third fan, and the fourth fan. The output end of each micro motor is key-connected to a blade, and the deflection angle of the blade can be adjusted by the micro motor.

[0011] Preferably, the reciprocating movement mechanism includes a fixing plate fixedly installed at the middle position inside the base. The fixing plate is perpendicular to the conveyor belt device. On one side surface of the fixing plate, there are a first limiting rod and a first lead screw arranged in parallel. On the other side surface, there are a second limiting rod and a second lead screw arranged in parallel. The first limiting rod and the second limiting rod are both fixedly connected to the fixing plate and the inner wall of the base. The first lead screw and the second lead screw are both rotatably connected to the fixing plate and the inner wall of the base. The first lead screw is driven by a first motor fixedly installed on the base, and the second lead screw is driven by a second motor fixedly installed on the base. One moving shell is arranged between the first limiting rod and the first lead screw, and the other moving shell is arranged between the second limiting rod and the second lead screw.

[0012] Preferably, the driving mechanism includes a second gear rotatably installed on one side inside the moving shell and a first gear on the other side. The second gear is driven by a fourth motor fixedly installed on the moving shell, and the second gear is meshed with the outer surface of the first external tooth ring. The first gear is driven by a third motor fixedly installed on the moving shell, and the first gear is meshed with the outer surface of the second external tooth ring.

[0013] Preferably, the first longitudinal support portion includes a plurality of first electric telescopic rods fixedly installed at equal intervals on the inner side wall of the first external tooth ring. The first electric telescopic rods are horizontally distributed, and the telescopic ends thereof are fixedly connected with second electric telescopic rods arranged perpendicular to them. The second longitudinal support portion includes a plurality of fourth electric telescopic rods fixedly installed at equal intervals on the inner side wall of the second external tooth ring. The fourth electric telescopic rods are staggered with the first electric telescopic rods. The fourth electric telescopic rods are horizontally distributed, and the telescopic ends thereof are fixedly connected with third electric telescopic rods arranged perpendicular to them. The telescopic ends of the second electric telescopic rods and the third electric telescopic rods are both connected with gaskets through spherical connectors.

[0014] Preferably, a telescopic device is fixedly installed inside the gasket. The working end of the telescopic device is connected with a telescopic plate. A slot for the telescopic plate to pass through is formed on the side wall of the gasket, and the materials of the gasket and the telescopic plate are both graphite.

[0015] Preferably, the lifting assembly includes a U-shaped sliding plate slidably connected to the side wall of the conveyor belt device. One end of the U-shaped sliding plate close to the support net is provided with a sliding slot. A sliding block is slidably connected inside the sliding slot. The sliding block has its own power and can move up and down inside the sliding slot. The adsorption assembly includes a magnet fixedly installed inside the lower end of the U-shaped sliding plate, and an electromagnet fixedly installed on the side surface of the moving shell corresponding to the position of the magnet.

[0016] Compared with the existing technology, the advantages of the present invention are as follows: 1. In this application, the conveyor belt device uses a stainless-steel punched chain plate with the hole density decreasing from the edge to the center of the die-casting part to compensate for the heat dissipation difference at the edge. In combination with the second and third fans inclined upward and the introduction of low-temperature nitrogen gas into the tunnel, a cross-flow forced convection is formed. The cold air penetrates the die-casting part from above, below and through the gaps, significantly improving the cooling efficiency. The semi-closed tunnel structure maintains a slightly positive pressure inside to prevent oxygen from entering and reduce surface oxidation. The dynamic transmission process avoids static accumulation, ensuring uniform and stable heat dissipation and solving the problems of local overheating and oxidation in traditional cooling.

[0017] 2. In this application, through multiple groups of electric telescopic rods (the first to the fourth) and spherical connectors, the height and angle of the gasket are independently adjusted to form an arc-shaped lifting surface to adapt to the irregular surface of the die-casting part, restricting movement and expanding the support area. The conveyor belt and the telescopic rods cooperate to achieve continuous conveying. When the previous group supports the die-casting part to the middle position, the next group resets to receive the next die-casting part, improving the automation efficiency. The telescopic rods alternately lift the die-casting part and drive it to rotate by 15°, changing the support points and avoiding fixed contact, enabling all parts to fully contact the cold air, eliminating local cooling blind spots and ensuring uniform temperature distribution.

[0018] 3. In this application, the wind speed is dynamically adjusted in three stages of pre-cooling, strong cooling, and natural cooling. In combination with the control of the rotation speed and direction of the die-casting part (alternating forward and reverse rotation), it avoids the thermal stress concentration caused by sudden changes in wind speed. Multiple fans are symmetrically arranged obliquely (blowing from below, staggered arrangement from above, blowing and sucking in cooperation on both sides), covering the entire surface without blind spots. Combining the superposition of the air flow direction and the linear velocity of the die-casting part during rotation, it prolongs the contact time and enhances the convection effect. For die-casting parts with complex shapes, the reverse air flow removes the accumulated heat in dead corners, reducing the risk of residual stress deformation and improving the consistency of cooling quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of a cooling device for a die-casting equipment for loom accessories proposed by the present invention; Figure 2 is a schematic cross-sectional view of a cooling device for a die-casting equipment for loom accessories proposed by the present invention Figure 1 ; Figure 3 is a schematic top view of a cross-section of a cooling device for a die-casting equipment for loom accessories proposed by the present invention; Figure 4 is a schematic cross-sectional view of a cooling device for a die-casting equipment for loom accessories proposed by the present invention Figure 2 ; Figure 5 is a schematic cross-sectional view of a cooling device for a die-casting equipment for loom accessories proposed by the present invention Figure 3 ; Figure 6Structural schematic diagram of a moving housing of a cooling device for a die-casting device of loom accessories proposed by the present invention; Figure 7 Full-sectional structural schematic diagram of a moving housing of a cooling device for a die-casting device of loom accessories proposed by the present invention; Figure 8 Exploded view of an annular housing of a cooling device for a die-casting device of loom accessories proposed by the present invention; Figure 9 Full-sectional structural schematic diagram of a gasket of a cooling device for a die-casting device of loom accessories proposed by the present invention; Figure 10 Full-sectional bottom view of a fourth fan of a cooling device for a die-casting device of loom accessories proposed by the present invention; Figure 11 is Figure 6 Detail enlarged view of part A of

[0020] In the figure: 1 outer installation housing, 2 ventilation window, 3 air inlet pipe, 4 inner installation housing, 5 conveyor belt device, 6 first motor, 7 air outlet, 8 first fan, 9 second fan, 10 third fan, 11 U-shaped sliding plate, 12 second motor, 13 fourth fan, 14 support net, 15 first limiting rod, 16 second limiting rod, 17 fixing plate, 18 moving housing, 19 annular housing, 20 first electric telescopic rod, 21 second electric telescopic rod, 22 third electric telescopic rod, 23 first lead screw, 24 second lead screw, 25 first external toothed ring, 26 fourth electric telescopic rod, 27 second external toothed ring, 28 first gear, 29 third motor, 30 second gear, 31 fourth motor, 32 gasket, 33 electromagnet, 34 telescopic plate, 35 micro motor, 36 blade, 37 sliding groove, 38 sliding block. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Refer to Figures 1 to 11, A cooling device for a die-casting equipment of loom accessories, including an outer mounting housing 1. The outer mounting housing 1 is composed of a base located below and a cooling housing above, and a tunnel-shaped design is formed between them. The shape of the outer mounting housing 1 is in a "convex" shape when viewed from the side. Above the interior of the base, two conveyor belt devices 5 arranged parallel to each other left and right are installed. The conveyor belt device 5 is a prior art, and the specific type is a stainless steel punched chain plate conveyor belt. There is a gap between the two conveyor belt devices 5. The two ends of the die-cast part are respectively placed on the corresponding conveyor belt devices 5, and the middle part is located above the gap between the two conveyor belt devices 5. A plurality of air outlets 7 are provided on the side wall of the base.

[0023] On both sides below the interior of the base, two second fans 9 are fixedly installed. The two second fans 9 are arranged symmetrically in a mirror image and both face the side of the conveyor belt device 5. The air blown by the second fans 9 passes through the conveyor belt device 5 to cool the die-cast part. A plurality of third fans 10 are fixedly installed between the two second fans 9. The third fans 10 also face the side of the conveyor belt device 5 and are used to cool the die-cast part.

[0024] At the middle position inside the base, a fixing plate 17 is provided. The fixing plate 17 is perpendicular to the conveyor belt device 5. On one side surface of the fixing plate 17, a first limiting rod 15 and a first lead screw 23 arranged in parallel are provided. On the other side surface, a second limiting rod 16 and a second lead screw 24 arranged in parallel are provided. The first limiting rod 15 and the second limiting rod 16 are both fixedly connected to the fixing plate 17 and the inner wall of the base. The first lead screw 23 and the second lead screw 24 are both rotatably connected to the fixing plate 17 and the inner wall of the base. The first lead screw 23 is driven by a first motor 6 fixedly installed on the base, and the second lead screw 24 is driven by a second motor 12 fixedly installed on the base.

[0025] Between the first limiting rod 15 and the first lead screw 23, a moving housing 18 is installed. Between the second limiting rod 16 and the second lead screw 24, another moving housing 18 is installed. The structures of the two moving housings 18 are exactly the same. At the middle position of the moving housing 18, an annular housing 19 is fixedly installed. Above the interior of the annular housing 19, a first external gear ring 25 is rotatably installed. Below the interior, a second external gear ring 27 is rotatably installed. On one side inside the moving housing 18, a second gear 30 is rotatably installed. The second gear 30 is driven by a fourth motor 31 fixedly installed on the moving housing 18, and the second gear 30 is meshed with the outer surface of the first external gear ring 25. On the other side inside the moving housing 18, a first gear 28 is rotatably installed. The first gear 28 is driven by a third motor 29 fixedly installed on the moving housing 18, and the first gear 28 is meshed with the outer surface of the second external gear ring 27. By setting the third motor 29 and the fourth motor 31, the corresponding second external gear ring 27 and the first external gear ring 25 can be controlled to rotate separately.

[0026] A plurality of first electric telescopic rods 20 arranged at equal intervals are fixedly installed on the inner side wall of the first external tooth ring 25 and are horizontally distributed. The telescopic ends of the first electric telescopic rods 20 are fixedly connected to second electric telescopic rods 21 which are vertically arranged therewith. The telescopic ends of the second electric telescopic rods 21 are connected with gaskets 32 through spherical connectors. A plurality of fourth electric telescopic rods 26 arranged at equal intervals are fixedly installed on the inner side wall of the second external tooth ring 27 and are horizontally distributed. The fourth electric telescopic rods 26 and the first electric telescopic rods 20 are staggeredly distributed. The telescopic ends of the fourth electric telescopic rods 26 are fixedly connected to third electric telescopic rods 22 which are vertically arranged therewith. The telescopic ends of the third electric telescopic rods 22 are connected with gaskets 32 through spherical connectors. The gaskets 32 on the second electric telescopic rods 21 and the gaskets 32 on the third electric telescopic rods 22 alternately support the middle position of the pressure casting and jack it up, and the rotation of the first external tooth ring 25 and the second external tooth ring 27 can drive the pressure casting to rotate.

[0027] A telescopic device is fixedly installed inside the gasket 32. The working end of the telescopic device is connected with a telescopic plate 34. A slot for the telescopic plate 34 to pass through is opened on the side wall of the gasket 32. The materials of the gasket 32 and the telescopic plate 34 are both graphite, which can withstand the high temperature after the pressure casting is demolded and will not affect the support effect due to thermal deformation.

[0028] There are two front and rear support mechanisms arranged above the conveyor belt device 5. The two support mechanisms are respectively located on both sides of the fixed plate 17. The support mechanism includes two support nets 14 which are symmetrically distributed left and right. The support nets 14 span the corresponding conveyor belt device 5. One end of the support net 14 close to the gap is slidably connected to the side wall of one end of the conveyor belt device 5 through a slider. The other end of the support net 14 far from the gap is slidably connected to the side wall of the other end of the conveyor belt device 5 through a lifting assembly. The lifting assembly includes a U-shaped sliding plate 11 which is slidably connected to the side wall of the conveyor belt device 5. One end of the U-shaped sliding plate 11 close to the support net 14 is fixedly installed with a sliding groove 37. A sliding block 38 is slidably connected inside the sliding groove 37. The sliding block 38 has its own power and can move up and down inside the sliding groove 37, thereby driving one end of the support net 14 to move up and down. Specifically, the support net 14 is made of graphene electrothermal film material and has a super strong heat dissipation effect, which can improve the heat dissipation effect while ensuring support. A magnet is fixedly installed inside the lower end of the U-shaped sliding plate 11. An electromagnet 33 corresponding to the position of the magnet is fixedly installed on the side of the moving housing 18. The electromagnet 33 can generate a magnetic force after being powered on, thereby adsorbing the U-shaped sliding plate 11, so that the moving housing 18 can drive the U-shaped sliding plates 11 on both sides to move synchronously while moving.

[0029] Ventilation windows 2 are installed on both the left and right side walls of the cooling housing. An inner mounting housing 4 is fixedly installed inside the cooling housing. A plurality of first fans 8 are installed on both the left and right side walls of the inner mounting housing 4. The first fans 8 on one side are responsible for suction, and the first fans 8 on the other side are responsible for blowing. A cavity is formed between the inner mounting housing 4 and the inner top wall of the cooling housing. An air inlet pipe 3 communicating with its interior is fixedly installed at the top of the cooling housing. The air inlet pipe 3 is used to continuously introduce high-purity low-temperature nitrogen gas into this cavity. A plurality of fourth fans 13 are arranged in a staggered manner on the top wall of the inner mounting housing 4. A plurality of micro motors 35 are evenly distributed at equal angles inside the second fan 9, the third fan 10, and the fourth fan 13. The output end of each micro motor 35 is key-connected with a blade 36. The deflection angle of each blade 36 can be adjusted through the micro motor 35, so as to realize the adjustment of the air flow direction.

[0030] After the die-cast part is demolded in the present invention, the die-cast part is placed at the device inlet, placed on the conveyor belt device 5 on both sides, and limited by the second electric telescopic rod 21 in the middle. Subsequently, the conveyor belt device 5 is started, and the die-cast part will move together with the conveyor belt device 5, and then the die-cast part is cooled. The die-cast part is cooled while continuously moving on the conveyor belt device 5, which can avoid local overheating caused by static accumulation and ensure the uniformity and stability of the heat dissipation process. In addition, the conveyor belt device 5 is a stainless steel punched chain plate conveyor belt. The punching allows cold air to penetrate from below, and cooperates with the second fan 9 and the third fan 10 inclined upward to form a cross-flow cooling. The cold air forms forced convection through the gap between the punched chain plate and the die-cast part, improving the cooling efficiency. The hole distribution on the conveyor belt device 5 follows the principle that the distribution closer to the die-cast part is denser and the distribution closer to both sides is sparser, so as to compensate for the characteristic of fast heat dissipation at the edges. The tunnel cooling method is adopted above the conveyor belt device 5, which can more effectively control the wind force distribution during the cooling process. For this kind of semi-closed space and then continuously introducing high-purity low-temperature nitrogen gas as the cooling medium through the air inlet pipe 3 to make the internal air pressure slightly higher than the external, preventing oxygen from entering, which can effectively reduce the oxidation degree of the die-cast part surface.

[0031] The middle of the die-cast part is in contact with the ring formed by a plurality of independent gaskets 32. The gasket 32 can realize independent lifting or rotation through the first electric telescopic rod 20, the second electric telescopic rod 21, the third electric telescopic rod 22, the fourth electric telescopic rod 26, and the spherical connector, more comprehensively adapting to the special-shaped surface of the die-cast part, and finally forming an arc-shaped supporting surface to further limit the movement of the die-cast part.

[0032] When the die-casting part moves on the conveyor belt device 5, the first motor 6 is started, and the second electric telescopic rod 21 and the third electric telescopic rod 22 are driven to move synchronously through the first lead screw 23. When the die-casting part reaches the middle position of the conveyor belt device 5, the previous second electric telescopic rod 21 and the third electric telescopic rod 22 support the middle position of the die-casting part, and the subsequent second electric telescopic rod 21 and the third electric telescopic rod 22 return to their original positions to support the next die-casting part. In this way, through the cooperation of the conveyor belt device 5, the second electric telescopic rod 21 and the third electric telescopic rod 22, continuous automated conveying and cooling can be achieved, accelerating the heat dissipation rhythm.

[0033] When the second electric telescopic rod 21 and the third electric telescopic rod 22 support the die-casting part, the second electric telescopic rod 21 is first started to lift the die-casting part by a certain height, which can reduce the contact time between the die-casting part and the conveyor belt device 5 and destroy the thermal boundary layer in the static state. Subsequently, the fourth motor 31 is started, and the second electric telescopic rod 21 is driven through the second gear 30 and the first external tooth ring 25, so that the second electric telescopic rod 21 drives the die-casting part to rotate by 15°. At this time, the third electric telescopic rod 22 remains stationary. Then, the die-casting part is put down by the second electric telescopic rod 21, and the third electric telescopic rod 22 then lifts the die-casting part. The third motor 29 is started, and the third electric telescopic rod 22 is driven through the first gear 28 and the second external tooth ring 27 to make the die-casting part rotate by 15° and then put it down. By continuously rotating the die-casting part, all parts of the die-casting part can fully contact the cold air, thus avoiding the problems of local overheating or insufficient cooling. In addition, through the alternating lifting and rotation of the second electric telescopic rod 21 and the third electric telescopic rod 22, the support points are always changing and will not coincide within one week, avoiding the problems of local overheating or uneven heating that may be caused by fixed support positions, ensuring that the temperature distribution of the die-casting part is more uniform during the cooling process, and thus improving the cooling effect.

[0034] After the die-cast part enters the interior of the cooling tunnel, the initially lifted die-cast part will press on the support nets 14 on both sides. At this time, the electromagnet 33 is activated to adsorb the U-shaped sliding plate 11, and the support nets 14 will move along with the die-cast part. During the lifting process of the second electric telescopic rod 21 or the third electric telescopic rod 22, the support nets 14 on both sides will also be lifted together through the sliding of the sliding blocks 38. When the length-width gap of the die-cast part is large, the supporting effect of the support nets 14 can ensure uniform force on each part of the die-cast part. When the die-cast part starts to rotate, the support nets 14 move downward a certain distance as a buffer to prevent the die-cast part from directly hitting the conveyor belt device 5 when it falls, and at the same time, it can also prevent the die-cast part from getting entangled with the support nets 14 during rotation. After the rotation ends, the support nets 14 move upward again to support the die-cast part. During the process of lowering the die-cast part, the middle second electric telescopic rod 21 or the third electric telescopic rod 22 first descends, and then the support nets 14 on both sides are lowered at a slower speed. Using the buffering performance of the support nets 14, the shaking or tilting of the die-cast part is reduced, thereby reducing the possibility of the die-cast part colliding with the running support nets 14. In addition, for die-cast parts with a large length-width gap, they are likely to fall between the two conveyor belt devices 5 during rotation. Therefore, whenever the die-cast part is lifted, the telescopic plate 34 inside the gasket 32 located between the two conveyor belt devices 5 will extend, and the corresponding first electric telescopic rod 20 or the fourth electric telescopic rod 26 will slightly extend. This can not only expand the overall supporting area, but also, after the die-cast part is lowered, it will press on the telescopic plate 34. Since the telescopic plate 34 has a certain elasticity, at this time, the first electric telescopic rod 20 or the fourth electric telescopic rod 26 is slightly shortened to apply a certain pre-tightening force to realize the clamping of the die-cast part and ensure the stability of the rotation and movement of the die-cast part. The gasket 32 and the telescopic plate 34 are both made of graphite, which can withstand the high temperature after the die-cast part is demolded and will not affect the supporting effect due to thermal deformation. Secondly, the layered structure of graphite endows it with excellent self-lubricity, which can reduce the friction and wear with the die-cast part while supporting or clamping. The support nets 14 are made of graphene electrothermal film material, which has a super strong heat dissipation effect and can improve the heat dissipation effect while ensuring support.

[0035] When the die-casting part is just placed on the conveyor belt device 5, the second fan 9 is immediately started for pre-cooling. At this time, the air flow is small, and the main purpose is to reduce its initial temperature and prepare for subsequent cooling. After the pre-cooling stage ends, it enters the cooling tunnel. At this time, the third fan 10 is used to gradually increase the wind speed to avoid sudden changes in the wind speed causing a sudden drop in the surface temperature of the die-casting part and reducing thermal stress. At the end of the last stage, the wind speed of the second fan 9 can be reduced or the die-casting part can be naturally cooled for a period of time to reduce the thermal stress caused by forced cooling and make the internal temperature of the die-casting part drop evenly. In addition, the entire air-cooling process is coordinated with the rotation of the die-casting part. At the beginning of the pre-cooling state, the die-casting part is rotated at a low speed to avoid direct contact with the high-flow medium resulting in too large local temperature differences. At this time, the rotation speed needs to ensure uniform heat dissipation of all parts of the part rather than rapid cooling. Subsequently, as the wind speed increases, the rotation speed can be slightly increased synchronously. The centrifugal force is used to enhance the fluidity of the medium to accelerate heat dissipation. During this stage, the rotation direction can be intermittently changed, alternating between forward and reverse rotations to avoid unilateral stress concentration. Finally, as the wind speed gradually decreases, the rotation speed is reduced, and finally the rotation stops and it is naturally cooled to reduce the risk of deformation caused by residual stress.

[0036] Multiple second fans 9 and third fans 10 are symmetrically arranged below both sides of the die-casting part, blowing obliquely upward. Most of the air flow penetrates the conveyor belt device 5 and directly acts on the side of the die-casting part, and a small part of the air flow acts on the middle gap to form auxiliary convection, improving the uniformity of die-casting part cooling. The second fans 9 at the inlet and outlet are tilted at a certain angle to blow towards the inlet and outlet, which can effectively prevent outdoor air from entering the interior. Since there is no obstruction above, multiple fourth fans 13 are installed above the die-casting part in a staggered arrangement, which can not only cover all areas of the die-casting part surface, eliminate the edge blind area of the traditional single fan, but also avoid local wind speed being too high or too low due to wind direction overlap. The first fans 8 on both sides of the die-casting part, one side blows air, and the other side is responsible for suction. In this way, through multi-point blowing in the vertical and horizontal directions, uniform cooling of the die-casting part can be achieved, avoiding stress concentration and deformation problems caused by local overheating or overcooling. The first fans 8 are closer to the die-casting part. After the hot air is generated from the surface of the die-casting part, the path to the suction port is shorter. The hot air does not need to diffuse and flow through a long space and can be more directly and quickly sucked away by the first fans 8, thus improving the air suction efficiency.

[0037] When the die-cast part rotates counterclockwise, the first fan 8 blows horizontally from left to right. The direction of the surface linear velocity is superposed with the airflow direction in the same direction, which can increase the relative wind speed, significantly enhance the forced convection effect, and improve the heat dissipation efficiency. The rotation directions of the second fan 9, the third fan 10, and the fourth fan 13 are the same as the rotation direction of the die-cast part. When the tangential component of the up-and-down blowing airflow is consistent with the rotation direction of the die-cast part, the contact time between the airflow and the die-cast part can be extended, and the heat transfer amount per unit time can be increased. By changing the angle of the blade 36 through the micro motor 35, the rotation directions of the second fan 9, the third fan 10, and the fourth fan 13 can be made consistent with the rotation direction of the die-cast part. In addition, by reversing the rotation of the motor of the first fan 8 to adjust the airflow direction, the original air inlet becomes the air outlet, and the original air outlet becomes the air inlet. When it is the same as the rotation direction of the die-cast part, the heat dissipation effect can be improved. When it is opposite to the rotation direction of the die-cast part, the heat accumulation caused by the same rotation direction for a long time can be broken. For cast iron parts with complex geometric shapes, using reverse airflow in some areas can also help remove the accumulated heat in dead corners.

[0038] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cooling device for a die-casting equipment of loom accessories, comprising an outer mounting housing (1), the outer mounting housing (1) is composed of a base below and a cooling housing above, and a tunnel-shaped design is formed between the two, characterized in that, Above the interior of the base, there are two conveyor belt devices (5) arranged in parallel from left to right. There is a gap between the two conveyor belt devices (5). Below the interior of the base, there is a first cooling mechanism, and a second cooling mechanism is arranged inside the cooling housing. At the middle position inside the base, there is a reciprocating movement mechanism. Two moving housings (18) are installed at the moving end of the reciprocating movement mechanism. At the middle position of the moving housing (18), a ring-shaped housing (19) is fixedly installed. Above the interior of the ring-shaped housing (19), a first external gear ring (25) is rotatably installed, and below the interior, a second external gear ring (27) is rotatably installed. The first external gear ring (25) and the second external gear ring (27) are driven by a driving mechanism installed inside the moving housing (18). The inner side wall of the first external gear ring (25) is provided with a first longitudinal support portion, and the inner side wall of the second external gear ring (27) is provided with a second longitudinal support portion. Gaskets are rotatably connected to the tops of the first longitudinal support portion and the second longitudinal support portion. Above the conveyor belt device (5), there are two front and rear support mechanisms. The support mechanism includes two support nets (14) arranged symmetrically from left to right. The support net (14) spans the corresponding conveyor belt device (5). One end of the support net (14) close to the gap is slidably connected to the side wall of one end of the conveyor belt device (5), and the other end of the support net (14) away from the gap is slidably connected to the side wall of the other end of the conveyor belt device (5) through a lifting assembly. An adsorption assembly is arranged between the lower end of the lifting assembly and the corresponding moving housing (18).

2. The cooling device for a die-casting device of loom accessories according to claim 1, characterized in that, The type of the conveyor belt in the conveyor belt device (5) is a stainless steel perforated chain plate conveyor belt. The two ends of the die-casting part are respectively placed on the corresponding conveyor belt device (5), and the middle is located above the gap between the two conveyor belt devices (5).

3. The cooling device for the die-casting equipment of loom accessories according to claim 1, characterized in that, The first cooling mechanism includes second fans (9) fixedly installed on both sides below the interior of the base. The two second fans (9) are arranged symmetrically in a mirror image and both face the side of the conveyor belt device (5). A plurality of third fans (10) are fixedly installed between the two second fans (9), and all the third fans (10) face the side of the conveyor belt device (5).

4. The cooling device for the die-casting equipment of loom accessories according to claim 3, characterized in that, The second cooling mechanism includes an inner layer installation housing (4) fixedly installed inside the cooling housing. A plurality of first fans (8) are installed on both the left and right side walls of the inner layer installation housing (4). A cavity is formed between the inner layer installation housing (4) and the inner top wall of the cooling housing. An air inlet pipe (3) communicated with its interior is fixedly installed at the top of the cooling housing. The air inlet pipe (3) is used to continuously introduce high-purity low-temperature nitrogen into the cavity. A plurality of fourth fans (13) are arranged in a staggered manner on the top wall of the inner layer installation housing (4). Ventilation windows (2) are installed on both the left and right side walls of the cooling housing.

5. The cooling device for a die-casting device of loom accessories according to claim 4, characterized in that, A plurality of micro motors (35) are evenly distributed at equal angles inside the second fan (9), the third fan (10), and the fourth fan (13). The output end of each micro motor (35) is key-connected with a blade (36). The deflection angle of the blade (36) can be adjusted through the micro motor (35).

6. The cooling device for a die-casting device of loom accessories according to claim 1, characterized in that, The reciprocating movement mechanism includes a fixed plate (17) fixedly installed at the middle position inside the base. The fixed plate (17) is perpendicular to the conveyor belt device (5). On one side surface of the fixed plate (17), a first limiting rod (15) and a first lead screw (23) are arranged in parallel. On the other side surface, a second limiting rod (16) and a second lead screw (24) are arranged in parallel. Both the first limiting rod (15) and the second limiting rod (16) are fixedly connected to the fixed plate (17) and the inner wall of the base. Both the first lead screw (23) and the second lead screw (24) are rotatably connected to the fixed plate (17) and the inner wall of the base. The first lead screw (23) is driven by a first motor (6) fixedly installed on the base, and the second lead screw (24) is driven by a second motor (12) fixedly installed on the base. One moving housing (18) is arranged between the first limiting rod (15) and the first lead screw (23), and the other moving housing (18) is arranged between the second limiting rod (16) and the second lead screw (24).

7. The cooling device for a die-casting device of loom accessories according to claim 1, characterized in that, The driving mechanism includes a second gear (30) rotatably installed on one side inside the moving housing (18) and a first gear (28) on the other side. The second gear (30) is driven by a fourth motor (31) fixedly installed on the moving housing (18), and the second gear (30) is meshed with the outer surface of the first external tooth ring (25). The first gear (28) is driven by a third motor (29) fixedly installed on the moving housing (18), and the first gear (28) is meshed with the outer surface of the second external tooth ring (27).

8. The cooling device for the die-casting equipment of loom accessories according to claim 1, characterized in that, The first longitudinal support part includes a plurality of first electric telescopic rods (20) fixedly installed at equal intervals on the inner side wall of the first external tooth ring (25). The first electric telescopic rods (20) are horizontally distributed, and their telescopic ends are fixedly connected with second electric telescopic rods (21) perpendicular to them. The second longitudinal support part includes a plurality of fourth electric telescopic rods (26) fixedly installed at equal intervals on the inner side wall of the second external tooth ring (27). The fourth electric telescopic rods (26) are staggered with the first electric telescopic rods (20). The fourth electric telescopic rods (26) are horizontally distributed, and their telescopic ends are fixedly connected with third electric telescopic rods (22) perpendicular to them. The telescopic ends of the second electric telescopic rods (21) and the third electric telescopic rods (22) are both connected with a gasket (32) through a spherical connector.

9. The cooling device for the die-casting equipment of loom accessories according to claim 8, characterized in that, A telescopic device is fixedly installed inside the gasket (32). The working end of the telescopic device is connected with a telescopic plate (34). A slot for the telescopic plate (34) to pass through is opened on the side wall of the gasket (32). The materials of both the gasket (32) and the telescopic plate (34) are graphite.

10. The cooling device for the die-casting equipment of loom accessories according to claim 1, characterized in that, The lifting assembly includes a U-shaped sliding plate (11) slidably connected to the side wall of the conveyor belt device (5). One end of the U-shaped sliding plate (11) close to the support net (14) is provided with a sliding slot (37). A sliding block (38) is slidably connected inside the sliding slot (37). The sliding block (38) has its own power and can move up and down inside the sliding slot (37). The adsorption assembly includes a magnet fixedly installed on the inner side of the lower end of the U-shaped sliding plate (11), and an electromagnet (33) fixedly installed on the side of the moving housing (18) corresponding to the position of the magnet.

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