Cooling and shaping equipment used after mobile phone middle frame manufacturing

Abstract

The invention discloses cooling and shaping equipment used after mobile phone middle frame manufacturing, and relates to the technical field of mobile phone accessory machining. The cooling and shaping equipment comprises a cooling chamber, a conveying table is installed in the middle of the cooling chamber, a plurality of dynamic supporting assemblies are evenly arranged above the conveying table, and each dynamic supporting assembly comprises a supporting frame; the middle frame workpiece is installed above the conveying table through the supporting frame to be stably conveyed, the dynamic supporting assembly further comprises an external gear and a connecting rack, in the conveying process of the middle frame workpiece, the external gear is driven to rotate through driving of the connecting rack to achieve overturning of the middle frame workpiece, and airflow spirally flows in the same direction through an internal vortex set. The direct current air wraps the periphery, the limitation of traditional single airflow cooling is broken through through the cooling mode of airflow flowing, the direct current air focuses on efficient heat dissipation of a core area, spiral air supplements and covers edge blind areas, uniform cooling of the whole surface of the middle frame is achieved, and deformation or size deviation caused by insufficient local heat dissipation is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone accessories processing, in particular to a cooling and shaping device for a mobile phone middle frame after manufacture. Background Art

[0002] Mobile phone middle frame cooling and shaping equipment is mainly used for rapid cooling and shape stabilization of metal or composite middle frames after stamping / die-casting. This equipment usually adopts a multi-stage air cooling or water mist cooling system, equipped with temperature control sensors and conveyor belt devices, and can cool high-temperature workpieces from over 600°C to below 80°C within 30 to 60 seconds. The entire system adopts a modular design and can adapt to middle frame products of different sizes.

[0003] However, the prior art still has the following defects when used:

[0004] 1. Existing cooling and shaping equipment generally adopts a single DC air cooling method. Its core limitation stems from the incompatibility between the airflow characteristics and the midframe structure. When a single DC airflow is blown in a vertical direction, it is constrained by air resistance and fluid diffusion laws, and the airflow quickly diffuses and attenuates during propagation, resulting in a limited effective range. In the complex three-dimensional structure of the mobile phone midframe, such as recessed areas such as the camera groove and button slot, the DC airflow has difficulty penetrating due to the "shadow effect", resulting in significant heat accumulation. Areas such as the edges and corners of the midframe are prone to forming cooling blind spots because they are beyond the airflow coverage range. In addition, equipment design usually only considers overall cooling requirements and lacks targeted optimization for the differentiated heat dissipation needs of the local midframe. As a result, the same DC airflow cannot achieve the heat dissipation efficiency of both flat areas and three-dimensional structures, resulting in a serious mismatch between the cooling effect and the actual heat dissipation requirements of the midframe.

[0005] Therefore, airflow has difficulty reaching the recessed areas and edge parts of the middle frame. The cooling rate in these areas differs significantly from that in the flat areas, leading to uneven shrinkage in various parts of the middle frame and internal stress, which in turn causes quality defects such as warping and deformation. This is especially evident in materials with strong thermal conductivity, such as aluminum alloy. Secondly, to compensate for the cooling blind spot problem, companies often increase air volume or extend cooling time. The former not only leads to increased energy consumption, but also causes excessive equipment noise. The latter significantly prolongs the production cycle, seriously restricting the operating efficiency of the automated production line.

[0006] 2. Furthermore, current mobile phone midframe cooling and shaping equipment generally utilizes static, single-sided cooling with rigid, flat support, making it difficult to meet the heat dissipation requirements of complex midframe structures. Traditional cooling systems rely solely on a single-directional airflow from the top, lacking a design for coordinated cooling across multiple sides of the midframe. Due to the presence of three-dimensional structures such as camera grooves and button slots on the midframe surface, single-sided airflow can easily create cooling blind spots in these recessed areas, leading to heat accumulation. Furthermore, areas not directly facing the airflow, such as the sides and bottom, lack direct contact with the airflow, resulting in extremely low heat dissipation efficiency.

[0007] In terms of support structures, existing devices often use flat, rigid support components that adhere to the midframe surface over a large area for securement. This support method not only exerts significant pressure on the midframe surface, easily leaving indentations or scratches, but also lacks the ability to adjust to even the slightest curvature of the midframe surface, leading to localized stress concentration. Furthermore, the airflow path design of traditional devices is independent of the support structure, making it impossible to utilize the support components to assist in heat dissipation, further limiting cooling effectiveness.

[0008] In view of this, the present invention proposes a cooling and shaping device for a mobile phone middle frame after manufacture to compensate for and improve the shortcomings of the prior art. Summary of the Invention

[0009] In order to solve the above technical problems, the present invention provides a cooling and shaping device for a mobile phone middle frame after manufacture, so as to solve the technical problems raised in the above background technology.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is: a cooling and shaping device for a mobile phone middle frame after manufacturing, which is used for cooling the middle frame workpiece, comprising a cooling chamber, a conveying platform is installed in the middle of the cooling chamber, a blower is installed above the cooling chamber, and a plurality of dynamic support assemblies are evenly arranged above the conveying platform, wherein the dynamic support assembly comprises a support frame, and the middle frame workpiece is installed above the conveying platform through the support frame for stable conveying, and the dynamic support assembly also includes an external gear and a connecting rack. During the conveying process of the middle frame workpiece, the external gear is driven by the connecting rack to rotate to realize the flipping of the middle frame workpiece, thereby ensuring double-sided cooling of the middle frame workpiece, and the dynamic support assembly also includes an airbag, an elastic sliding shaft and an inclined surface protrusion. Similarly, during the conveying process of the middle frame workpiece, the side parts of the middle frame workpiece are cooled by the contact and cooperation between the inclined surface protrusion and the elastic sliding shaft, thereby realizing all-round cooling of the middle frame workpiece.

[0011] Furthermore, the upper surface of the conveying platform is symmetrically fixedly connected with a connecting shaft, the upper part of the connecting shaft is rotatably connected with a rotating shaft, the end of the rotating shaft away from the connecting shaft is installed with an airbag, and the side of the airbags close to each other is movably connected with a support frame.

[0012] Furthermore, the support frame is in the shape of a groove as a whole, and through holes are opened on the upper and lower sides of the support frame. Springs are installed inside the through holes, and the lower ends of the springs are fixedly connected to attached shaft pads. The attached shaft pads are slidably connected to the inside of the through holes through springs, and the lower surfaces of the attached shaft pads are semi-spherical, thereby forming point contact with the middle frame workpiece after installation.

[0013] Furthermore, the inner side walls of the support frame are symmetrically provided with bevel grooves, the raised portion of the bevel grooves is located at the center of the inner side walls of the support frame, the airbag is connected to the support frame, and a number of exhaust holes are evenly provided at the connection position between the two.

[0014] Furthermore, the outer wall of the rotating shaft is fixedly connected to an external gear, and the interior of the rotating shaft is slidably connected to an elastic sliding shaft. The end of the elastic sliding shaft close to the external gear is spherical, and the end of the elastic sliding shaft away from the external gear is in contact with the side wall of the airbag.

[0015] Furthermore, the inner side wall of the cooling chamber is symmetrically fixedly connected with a connecting rack, the side walls of the connecting rack are symmetrically fixedly connected with inclined protrusions, and the connecting rack is located on the movement path of the external gear, and the inclined protrusions are located on the movement path of the elastic sliding shaft.

[0016] Furthermore, a uniform rapid cooling mechanism is provided inside the cooling chamber, and the uniform rapid cooling mechanism includes a diversion bin connected to the output end of the blower, and the lower part of the diversion bin is connected to an outer middle cylinder and a branch cylinder, and the outer middle cylinder corresponds to the center position of the diversion bin, and the branch cylinders are equidistantly distributed with the outer middle cylinder as the center, and there is a spacing area between the branch cylinder and the outer middle cylinder.

[0017] Furthermore, an inner middle cylinder is installed inside the outer middle cylinder, and the inner side walls of the outer middle cylinder and the inner middle cylinder are fixedly connected with a plurality of limiting teeth, and the ratio of the inner diameter of the outer middle cylinder to the inner diameter of the inner middle cylinder is two to one.

[0018] Furthermore, the inside of the branch cylinder is evenly and fixedly connected with a threaded track, and an eddy current group is installed below the threaded track.

[0019] Furthermore, the vortex group is composed of a combination of several inclined fan-shaped plates, and the upper surface of the vortex group is fixedly connected with a guide column, and the guide column is generally conical, with the tip of the cone facing vertically upward.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) This device introduces a diversion chamber structure to divide the airflow output by the blower into two paths: coaxial DC air and annular spiral air. The double-layer DC air channel formed by the outer middle cylinder and the inner middle cylinder flows out at high speed in a direction perpendicular to the surface of the middle frame, directly impacting the camera groove, card slot and other recessed areas or thick-walled parts of the mobile phone middle frame to achieve targeted cooling; and the branch cylinders are evenly distributed around the outer middle cylinder, and the internal vortex group makes the airflow form a spiral flow in the same direction, wrapping the DC air from the outside to form a 360-degree annular airflow layer, covering the sides, corners and edge areas of the middle frame; this airflow cooling method breaks through the limitations of traditional single airflow cooling, allowing the DC air to focus on efficient heat dissipation in the core area, and the spiral air to supplement and cover the edge blind area, achieving uniform cooling of the entire surface of the middle frame, avoiding deformation or dimensional deviation caused by insufficient local heat dissipation.

[0022] In the actual processing process, when faced with structural differences in middle frames of different models (such as size, recessed position) or position offset during transportation, the constraining effect of the spiral airflow can automatically compensate for the airflow deviation. Even if the relative position of the middle frame and the cooling component is slightly offset, the annular low-pressure area formed by the spiral airflow can still guide the DC air to the target area through the "adsorption effect", reducing cooling failure problems caused by manual machine adjustment or equipment errors. It is especially suitable for automated scenarios of mixed-line production of multiple models, improving the compatibility and stability of the production line.

[0023] The limiting teeth inside the outer and inner tubes make the airflow distribution more even. At the same time, the 2:1 inner diameter ratio design creates a specific velocity difference between the inner and outer tubes. This creates a pressure difference between the high-speed airflow in the inner tube and the low-speed airflow in the outer tube, further suppressing radial diffusion and strengthening the "columnar jet" shape of the DC air, thereby improving the cooling accuracy of specific areas of the center frame.

[0024] (2) What is particularly important is that when the spiral airflow of the branch cylinder flows out in a consistent direction, its circumferential motion forms an annular low-pressure area on the periphery of the DC wind. According to the Bernoulli principle, the peripheral air pressure is lower than the central air pressure, forming an inward adsorption force, thereby suppressing the radial diffusion of the DC wind at the central position, so that the DC wind maintains a concentrated columnar jet shape, extends the effective injection distance, ensures that the airflow continues to act on the target area of ​​the middle frame, and avoids the attenuation of cooling efficiency due to diffusion; and the tangential momentum of the spiral airflow will be transferred to the boundary layer of the DC wind, reducing the radial velocity component of the DC wind through the shear force, suppressing its turbulent diffusion trend, so that the DC wind can maintain a stable direction and flow rate when it impacts the surface of the middle frame at high speed, and continuously enhance the local heat dissipation effect.

[0025] Among them, the threaded track introduced inside the branch cylinder enables the airflow to obtain rotational momentum before entering the vortex group, making the formation of spiral airflow more efficient. The cone tip of the guide column is designed to face upwards, which can reduce the impact resistance of the airflow, allowing the airflow to pass through the vortex group more smoothly, avoiding pressure loss caused by local turbulence, ensuring the stability and strength of the spiral airflow, and ensuring that the rotation direction of the spiral airflow is more consistent, thereby enhancing the ability to restrain direct wind.

[0026] Among them, the interval area between the branch cylinder and the outer middle cylinder can provide a buffer space for airflows in different directions, preventing the direct wind and spiral wind from directly colliding and generating turbulence. This design ensures that the two airflows can develop independently and form a stable flow field, each playing a cooling and restraining role, avoiding the pipes being too close together, causing the airflows to interfere with each other and destroy the stability of the flow field.

[0027] (3) This device introduces a dynamic support component, which allows the middle frame workpiece to flip in a cycle of "upper surface → side → lower surface" during the transportation process. The upper blower combines the airbag side spray and the air flow penetration in the support gap to form a three-dimensional cooling field covering multiple surfaces of the middle frame, significantly improving the cooling uniformity and controlling the overall temperature gradient difference within a very small range. It is especially suitable for the shaping requirements of the middle frame with complex structures.

[0028] Among them, after the middle frame workpiece is installed, a semi-spherical shaft support pad is used to form a point contact support with it. Compared with the traditional plane support, the contact area of ​​the middle frame surface is greatly reduced, avoiding indentations or scratches caused by extrusion during the cooling process. At the same time, the elastic buffer of the spring can adapt to the curvature of the middle frame surface and effectively control the deformation risk caused by local stress concentration. The through-hole design of the support frame cooperates with the spring, which not only forms an air flow channel between the bottom surface of the middle frame and the frame, but also realizes the synchronous cooling of the bottom and side surfaces.

[0029] During the actual processing process, when the inclined protrusion squeezes the elastic sliding shaft, the airbag is compressed and deformed, ejecting high-speed airflow to both sides of the midframe through the exhaust holes connected to the support frame. This targeted airflow targets heat-blind spots such as the button slots and antenna slits on the sides. Compared to traditional top-blowing, the side cooling efficiency is significantly improved, effectively solving the stress concentration problem caused by insufficient side heat dissipation. This side air jet processing and flipping action triggering method is only activated in the specific section where the midframe enters the cooling chamber, avoiding the energy waste of continuous air jets, simplifying the equipment control logic, and improving production efficiency. At the same time, the integrated design of the airbag and support frame reduces the layout of additional piping, making the equipment structure more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the dynamic support assembly of the present invention;

[0032] Figure 3 This is a schematic diagram of the installation position of the dynamic support assembly and the middle frame workpiece of the present invention;

[0033] Figure 4 This is a planar side view of the middle frame workpiece after installation of the present invention;

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of the inclined surface protrusion of the present invention;

[0035] Figure 6 This is a schematic diagram of the three-dimensional structure of the diversion bin of the present invention;

[0036] Figure 7 This is a top view of the outer middle cylinder, inner middle cylinder and branch cylinders of the present invention;

[0037] Figure 8 This is a schematic diagram of the internal three-dimensional structure of the outer middle cylinder and the branch cylinder of the present invention;

[0038] Figure 9 This is a schematic diagram of the three-dimensional structure of the vortex group of the present invention;

[0039] Figure 10 This is a schematic diagram of the planar structure of the frame workpiece when it is flipped over in the present invention.

[0040] The numbers in the figure are:

[0041] 1. Cooling chamber; 11. Conveyor platform; 12. Blower; 13. Middle frame workpiece;

[0042] 2. Dynamic support assembly; 21. Connecting shaft; 22. Rotating shaft; 23. Airbag; 24. Support frame; 2401. Through hole; 25. Spring; 26. Attached shaft support pad; 27. Inclined groove; 28. External gear; 29. ​​Elastic sliding shaft; 210. Inclined protrusion; 211. Connecting rack;

[0043] 3. Uniform rapid cooling mechanism; 31. Diversion chamber; 32. Outer middle cylinder; 33. Inner middle cylinder; 34. Limiting teeth; 35. Branch cylinder; 36. Threaded track; 37. Eddy current group; 38. Guide column. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0045] It should be noted that the structures and working principles of the cooling chamber 1 , the conveying platform 11 , the blower 12 , the middle frame workpiece 13 and other components mentioned above belong to the prior art and will not be described in detail here.

[0046] Example 1

[0047] Please refer to Figures 1-10 As shown, a cooling and shaping device for a mobile phone middle frame after manufacturing is used to cool the middle frame workpiece 13, including a cooling chamber 1, a conveying platform 11 is installed in the middle of the cooling chamber 1, a blower 12 is installed above the cooling chamber 1, and a plurality of dynamic support components 2 are evenly arranged above the conveying platform 11. The dynamic support component 2 includes a support frame 24. The middle frame workpiece 13 is installed above the conveying platform 11 through the support frame 24 for stable conveying. The dynamic support component 2 also includes an external gear 28 and a connecting rack 211. During the conveying process of the middle frame workpiece 13, the external gear 28 is driven by the connected rack 211 to rotate to realize the flipping of the middle frame workpiece 13, thereby ensuring the double-sided cooling of the middle frame workpiece 13. The dynamic support assembly 2 also includes an airbag 23, an elastic sliding shaft 29 and an inclined surface protrusion 210. Similarly, during the conveying process of the middle frame workpiece 13, the side parts of the middle frame workpiece 13 are cooled by the contact and cooperation between the inclined surface protrusion 210 and the elastic sliding shaft 29, thereby realizing all-round cooling of the middle frame workpiece 13.

[0048] Please refer to Figures 1-10As shown, the upper surface of the conveying platform 11 is symmetrically fixedly connected with a connecting shaft 21, and the upper part of the connecting shaft 21 is rotatably connected with a rotating shaft 22. An air bag 23 is installed on the end of the rotating shaft 22 away from the connecting shaft 21, and the side of the air bags 23 close to each other is movably connected to a supporting frame 24. The supporting frame 24 is in the shape of a groove as a whole, and a through hole 2401 is provided on the upper and lower sides of the supporting frame 24. A spring 25 is installed inside the through hole 2401, and the lower end of the spring 25 is fixedly connected with an attached shaft support pad 26. The attached shaft support pad 26 is slidably connected to the inside of the through hole 2401 through the spring 25. The lower surface of the attached shaft support pad 26 is semi-spherical, thereby forming a point contact with the installed middle frame workpiece 13. The inner side wall of the support frame 24 is symmetrically provided with an inclined groove 27. The raised portion of the bevel groove 27 is located at the center of the inner wall of the support frame 24. The airbag 23 is connected to the support frame 24, and a number of exhaust holes are evenly opened at the connection position between the two. The outer wall of the rotating shaft 22 is fixedly connected to the external gear 28, and the interior of the rotating shaft 22 is slidably connected to the elastic sliding shaft 29. The end of the elastic sliding shaft 29 close to the external gear 28 is spherical, and the end of the elastic sliding shaft 29 away from the external gear 28 is kept in contact with the side wall of the airbag 23. The inner wall of the cooling chamber 1 is symmetrically fixedly connected with a connecting rack 211, and the side walls of the connecting rack 211 are symmetrically fixedly connected with a bevel protrusion 210, and the connecting rack 211 is located on the movement path of the external gear 28, and the bevel protrusion 210 is located on the movement path of the elastic sliding shaft 29.

[0049] Specifically, the middle frame workpiece 13 is placed in the supporting frame 24, and the supporting frame 24 is in the shape of a groove as a whole, providing a basic positioning space for the middle frame workpiece 13. Since through holes 2401 are opened on the upper and lower sides of the supporting frame 24, and a spring 25 is installed inside the through hole 2401, the attached shaft support pad 26 connected to the lower end of the spring 25 is slidably connected to the inside of the through hole 2401 through the spring 25, so the semi-spherical lower surface of the attached shaft support pad 26 forms a point contact with the middle frame workpiece 13. When the middle frame workpiece 13 is placed, the weight of the middle frame workpiece 13 causes the attached shaft support pad 26 to compress the spring 25 and slide downward. The elastic buffering effect of the spring 25 can not only ensure that the middle frame workpiece 13 is stably supported, but also adapt to the slight curvature of the surface of the middle frame workpiece 13 to avoid indentations or scratches on the middle frame surface due to rigid contact.

[0050] After the middle frame workpiece 13 is installed, the conveying platform 11 is started, driving the dynamic support assembly 2 fixed above it and the middle frame workpiece 13 to move together into the cooling chamber 1. During the movement, the attached shaft support pad 26 maintains point contact with the middle frame workpiece 13 to continuously provide stable support. The spring 25 dynamically adjusts the position of the attached shaft support pad 26 according to the surface morphology of the middle frame workpiece 13 to ensure the stability of the middle frame workpiece 13 during the conveying process. When the elastic sliding shaft 29 passes the position of the inclined surface protrusion 210, due to the contact between the inclined surface protrusion 210 and the elastic sliding shaft 29, the elastic sliding shaft 29 is moved. The spherical ends are in contact, so an inward squeezing force is generated on the elastic sliding shaft 29 during the movement, forcing the elastic sliding shaft 29 to slide inside the rotating shaft 22 in the direction close to the airbag 23. The sliding of the elastic sliding shaft 29 squeezes the airbag 23, and the airbag 23 is deformed under pressure. Because the airbag 23 is connected to the support frame 24, and exhaust holes are evenly opened at the connection position of the two, the gas in the airbag 23 is ejected at high speed through the exhaust holes and blows accurately to the side parts of the middle frame workpiece 13, so as to carry out targeted cooling of the heat dissipation blind spots such as the side button slots and antenna seams.

[0051] As the middle frame workpiece 13 continues to move with the conveyor platform 11, the external gear 28 enters the motion path of the connecting rack 211. The external gear 28 is fixed to the outer wall of the rotating shaft 22. When the external gear 28 is engaged with the connecting rack 211, the fixed position of the connecting rack 211 forms a relative motion with the movement of the conveyor platform 11, driving the external gear 28 to rotate. The rotation of the external gear 28 drives the rotating shaft 22 to rotate. The rotating shaft 22, through the connection relationship with the airbag 23 and the support frame 24, drives the support frame 24 and the middle frame workpiece 13 inside to flip. During the flipping process, the middle frame workpiece 13 sequentially undergoes three steps: horizontal upward, i.e., upper surface cooling, to vertical state, i.e., side cooling supplement, and then horizontal downward, i.e., lower surface cooling, to achieve double-sided and all-round cooling.

[0052] Based on Example 1, please refer to Figures 1-10As shown, the interior of the cooling chamber 1 is provided with a uniform rapid cooling mechanism 3, which includes a diversion chamber 31 connected to the output end of the blower 12, and an outer middle cylinder 32 and a branch cylinder 35 are connected below the diversion chamber 31. The outer middle cylinder 32 corresponds to the center of the diversion chamber 31, and the branch cylinders 35 are equidistantly distributed with the outer middle cylinder 32 as the center. There is a spacing area between the branch cylinders 35 and the outer middle cylinder 32. The inner middle cylinder 33 is installed inside the outer middle cylinder 32. The outer middle cylinder 32 is connected to the inner middle cylinder 33. The inner side walls of the inner middle cylinder 33 are fixedly connected with a plurality of limiting teeth 34, and the inner diameter size of the outer middle cylinder 32 is fixedly connected to the inner diameter size of the inner middle cylinder 33 in a ratio of two to one. The inside of the branch cylinder 35 is evenly fixedly connected with a threaded track 36, and a vortex group 37 is installed below the threaded track 36. The vortex group 37 is composed of a plurality of inclined fan-shaped plates, and the upper surface of the vortex group 37 is fixedly connected with a guide column 38. The guide column 38 is generally conical in shape, with the tip of the cone facing vertically upward.

[0053] Specifically, when the blower 12 is started, the output airflow enters the uniform rapid cooling mechanism 3, is split by the splitter chamber 31, and then enters the outer middle cylinder 32, the inner middle cylinder 33, and the branch cylinder 35 respectively. The various components work together to achieve efficient cooling. The specific flow trend process is as follows:

[0054] The airflow output by the blower 12 first enters the diversion chamber 31. As the core component of airflow distribution, the diversion chamber 31 distributes the incoming airflow to the outer middle cylinder 32 and the branch cylinder 35 connected below. Since the outer middle cylinder 32 corresponds to the center position of the diversion chamber 31, most of the airflow is directly directed to the outer middle cylinder 32; and the branch cylinders 35 are equidistantly distributed around the outer middle cylinder 32 as the center of the circle, the diversion chamber 31 evenly disperses the other part of the airflow to each branch cylinder 35, thereby realizing the initial diversion of the airflow.

[0055] Part of the airflow entering the outer middle tube 32 flows directly along the inner wall of the outer middle tube 32, while the other part enters the inner middle tube 33. The limiting teeth 34 fixedly connected to the inner side walls of the outer middle tube 32 and the inner middle tube 33 have a diversion effect on the airflow, promoting a more uniform distribution of the airflow during the flow process and enhancing the stability of the airflow.

[0056] Since the inner diameter ratio of the outer middle cylinder 32 to the inner middle cylinder 33 is two to one, this size difference makes the airflow velocity in the inner middle cylinder 33 relatively faster, forming a high-speed columnar jet; the airflow velocity in the outer middle cylinder 32 is relatively slow. Driven by the high-speed airflow in the inner middle cylinder 33, a pressure difference is generated between the two, further suppressing the radial diffusion of the airflow, so that the airflow discharged from the outer middle cylinder 32 and the inner middle cylinder 33 can flow vertically downward in a stable direct current manner, accurately impacting the surface of the middle frame workpiece 13, especially the recessed areas or thick-walled parts such as the camera groove and the card slot, to achieve targeted cooling.

[0057] The airflow entering the branch cylinder 35 will first come into contact with the threaded track 36 that is evenly fixed inside. The spiral structure of the threaded track 36 allows the airflow to obtain a rotational tendency before entering the vortex group 37. Subsequently, the airflow passes through the vortex group 37 composed of a combination of several inclined fan-shaped plates. The vortex group 37 further strengthens the rotational motion of the airflow, causing the airflow to form a strong spiral flow. The guide column 38 fixedly connected to the upper surface of the vortex group 37 has a conical tip facing vertically upward, which can effectively reduce the resistance of the airflow during passage, guide the airflow to pass through the vortex group 37 more smoothly, avoid pressure loss caused by local turbulence, and ensure the stability and strength of the spiral airflow.

[0058] Finally, the airflow discharged from the branch cylinder 35 flows out in a spiral flow, and the spiral flow direction of the airflow discharged from each branch cylinder 35 is consistent. These spiral airflows wrap around the DC airflow discharged from the outer middle cylinder 32 and the inner middle cylinder 33 from the periphery, forming a 360-degree annular airflow layer, covering the sides, corners and edge areas of the middle frame workpiece 13, and cooperating with the DC airflow to achieve all-round and uniform cooling of the middle frame workpiece 13. At the same time, the spacing area between the branch cylinder 35 and the outer middle cylinder 32 effectively prevents airflow interference between different pipes, ensuring that the DC airflow and the spiral airflow can stably maintain their respective flow forms and give full play to the cooling effect.

[0059] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cooling and shaping device for a mobile phone middle frame after manufacture, used for cooling a middle frame workpiece (13), comprising a cooling chamber (1), a conveying platform (11) installed in the middle of the cooling chamber (1), and a blower (12) installed above the cooling chamber (1), characterized in that: A plurality of dynamic support assemblies (2) are evenly arranged above the conveying platform (11), and the dynamic support assembly (2) includes a support frame (24). The middle frame workpiece (13) is installed above the conveying platform (11) through the support frame (24) for stable conveying. The dynamic support assembly (2) also includes an external gear (28) and a connecting rack (211). During the conveying process of the middle frame workpiece (13), the external gear (28) is driven by the connecting rack (211) to rotate to realize the flipping of the middle frame workpiece (13), thereby ensuring double-sided cooling of the middle frame workpiece (13). The dynamic support assembly (2) also includes an air bag (23), an elastic sliding shaft (29) and an inclined surface protrusion (210). Similarly, during the conveying process of the middle frame workpiece (13), the side part of the middle frame workpiece (13) is cooled by the contact and cooperation between the inclined surface protrusion (210) and the elastic sliding shaft (29), thereby realizing all-round cooling of the middle frame workpiece (13).

2. The cooling and shaping device for a mobile phone middle frame after manufacture according to claim 1, characterized in that: The upper surface of the conveying platform (11) is symmetrically fixedly connected with a connecting shaft (21), and the upper part of the connecting shaft (21) is rotatably connected with a rotating shaft (22), and the end of the rotating shaft (22) away from the connecting shaft (21) is installed with an air bag (23), and the side of the air bags (23) close to each other is movably connected with a supporting frame (24).

3. The cooling and shaping device for a mobile phone middle frame after manufacture according to claim 1, characterized in that: The support frame (24) is in the shape of a groove as a whole. Through holes (2401) are provided on the upper and lower sides of the support frame (24). Springs (25) are installed inside the through holes (2401). The lower ends of the springs (25) are fixedly connected to the attached shaft pads (26). The attached shaft pads (26) are slidably connected to the inside of the through holes (2401) through the springs (25). The lower surfaces of the attached shaft pads (26) are all semi-spherical, thereby forming point contact with the installed middle frame workpiece (13).

4. The cooling and shaping device for a mobile phone middle frame after manufacture according to claim 1, characterized in that: The inner sidewall of the support frame (24) is symmetrically provided with an inclined groove (27), and the raised portion of the inclined groove (27) is located at the center of the inner sidewall of the support frame (24). The airbag (23) is connected to the support frame (24), and a plurality of exhaust holes are evenly provided at the connection position between the two.

5. The cooling and shaping device for a mobile phone middle frame after manufacture according to claim 2, characterized in that: The outer wall of the rotating shaft (22) is fixedly connected to an external gear (28), and the interior of the rotating shaft (22) is slidably connected to an elastic sliding shaft (29). The end of the elastic sliding shaft (29) close to the external gear (28) is spherical, and the end of the elastic sliding shaft (29) away from the external gear (28) is kept in contact with the side wall of the airbag (23).

6. The cooling and shaping device for a mobile phone middle frame after manufacture according to claim 1, characterized in that: The inner side wall of the cooling chamber (1) is symmetrically fixedly connected with a connecting rack (211), and the side walls of the connecting rack (211) are symmetrically fixedly connected with an inclined surface protrusion (210), and the connecting rack (211) is located on the movement path of the external gear (28), and the inclined surface protrusion (210) is located on the movement path of the elastic sliding shaft (29).

7. The cooling and shaping device for a mobile phone middle frame after manufacture according to claim 1, characterized in that: A uniform rapid cooling mechanism (3) is provided inside the cooling chamber (1), and the uniform rapid cooling mechanism (3) includes a diversion chamber (31) connected to the output end of the blower (12), and an outer middle cylinder (32) and a branch cylinder (35) are connected below the diversion chamber (31), the outer middle cylinder (32) corresponds to the center position of the diversion chamber (31), and the branch cylinders (35) are equidistantly distributed with the outer middle cylinder (32) as the center, and there is a spacing area between the branch cylinders (35) and the outer middle cylinder (32).

8. The cooling and shaping device for a mobile phone middle frame after manufacture according to claim 7, characterized in that: An inner middle cylinder (33) is installed inside the outer middle cylinder (32), and the inner side walls of the outer middle cylinder (32) and the inner middle cylinder (33) are fixedly connected with a plurality of limiting teeth (34), and the ratio of the inner diameter size of the outer middle cylinder (32) to the inner diameter size of the inner middle cylinder (33) is two to one.

9. The cooling and shaping device for a mobile phone middle frame after manufacture according to claim 7, characterized in that: The inside of the branch cylinder (35) is evenly and fixedly connected with a threaded track (36), and a vortex group (37) is installed below the threaded track (36).

10. The cooling and shaping device for a mobile phone middle frame after manufacture according to claim 9, characterized in that: The vortex group (37) is composed of a plurality of inclined fan-shaped plates, and the upper surface of the vortex group (37) is fixedly connected with a guide column (38), and the guide column (38) is conical in shape as a whole, with the tip of the cone facing vertically upward.

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