Injection molding equipment for processing DC brushless cooling fans

Abstract

The invention discloses an injection molding device for processing a DC brushless cooling fan. The invention relates to the technical field of injection molding devices, and includes a frame, an injection molding mechanism, and a heat preservation component. The injection molding mechanism includes a linear guide rail, an injection molding main machine is slidably installed on the top of the linear guide rail, a servo motor is installed on the outer surface of the injection molding main machine and near the hydraulic cylinder, an injection molding cylinder is installed at one end of the injection molding main machine away from the servo motor, a spiral blade is rotatably installed in the middle of the inner cavity of the injection molding cylinder, a conical guide bucket is fixedly installed at the edge of the spiral surface of the spiral blade and near the position of the injection molding main machine, and the heat preservation component includes a heat preservation cylinder, a first annular tube is installed in the inner cavity of the heat preservation cylinder and near the discharge end of the injection molding cylinder, and a second annular tube is installed in the inner cavity of the heat preservation cylinder and at one end away from the first annular tube. The injection molding device for processing a DC brushless cooling fan achieves the effect of preventing material pulling, guides the granular material, is not easy to get stuck, and is heat-insulated, which is safe and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding equipment, in particular to an injection molding equipment for processing a direct current brushless cooling fan. Background Art

[0002] Cooling fans are mainly used in places where air cooling is required. Such as computer power supplies, CPUs, instruments and equipment with large power consumption, etc., so as to take away the heat generated inside the power supply and instruments in time, which plays a role in protecting the equipment and extending the life of the equipment. Nowadays, with the development of science and technology, the types of cooling fans are gradually increasing, including DC brushless cooling fans. With the continuous development of modern industry, the injection molding process is also changing with each passing day, and the injection molding machine is an indispensable part of the injection molding process. In the use of DC brushless cooling fans, injection molding machines are required for production and manufacturing, and injection molding machines are the main molding equipment for making thermoplastics or thermosetting plastics into plastic products of various shapes using plastic molding molds. Therefore, injection molding processing equipment is needed in the processing of DC brushless cooling fans.

[0003] At present, when the existing injection molding machine is in use, as the plastic granular material falls, the material will not be melted and will contact the edge of the push blade, causing material jamming. At the same time, the injection barrel is not insulated, which accelerates heat loss and causes waste of resources. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an injection molding device for processing a DC brushless cooling fan, comprising:

[0005] A frame, a protective cover is fixedly installed on the side of the top of the frame, and a hydraulic cylinder is installed in the middle of the outer surface of the protective cover;

[0006] An injection molding mechanism, which is used to melt and convey the material of the DC brushless cooling fan, and is installed in the middle of the top of the frame;

[0007] The injection molding mechanism comprises a linear guide rail, which is installed on the top of the frame and close to the protective cover. An injection molding main machine is slidably installed on the top of the linear guide rail. A servo motor is installed on the outer surface of the injection molding main machine and close to the hydraulic cylinder. An injection molding cylinder is installed at one end of the injection molding main machine away from the servo motor. A spiral blade is rotatably installed in the middle of the inner cavity of the injection molding cylinder. The output end of the servo motor is fixedly installed between a coupling and a rotating shaft at the center of the spiral blade. A heater is installed on the inner wall of the injection molding cylinder. A conical guide bucket is fixedly installed at the edge of the spiral surface of the spiral blade and close to the injection molding main machine. The spiral blade can be driven to rotate by the rotation of the output end of the servo motor, so that the granular material falling into the injection molding cylinder is driven by the rotating spiral blade to move to the position of the discharge port, and the granular material is heated and melted by the heater so that the material is in a liquid state. Then, under the guidance of the injection molding cylinder and by using the conical discharge port of the injection molding cylinder, the outflow speed of the liquid material can be accelerated, thereby promoting the injection molding of the material.

[0008] A heat preservation component, which is used to reduce the temperature loss in the injection molding cylinder, and is installed on the outer cylindrical surface of the injection molding cylinder;

[0009] Among them, the insulation component includes an insulation cylinder, which is installed in the middle of the outer cylindrical surface of the injection molding cylinder, a first annular tube is installed in the inner cavity of the insulation cylinder and near the discharge end of the injection molding cylinder, a second annular tube is installed in the inner cavity of the insulation cylinder and at one end away from the first annular tube, a fan is installed at the bottom of the insulation cylinder and near the first annular tube, the air outlet of the fan is connected with the air inlet of the first annular tube, a heat-conducting pipe is connected between the first annular tube and the second annular tube and near the injection molding cylinder, and a cavity can be formed between the insulation cylinder and the injection molding cylinder by covering the outside of the injection molding cylinder. Through the principle of heat transfer, the air temperature inside the insulation cylinder is increased, thereby insulating the injection molding cylinder and reducing heat loss.

[0010] Preferably, the side of the outer side of the injection molding main machine is fixedly installed through a bracket and the telescopic end of the hydraulic cylinder, and there are two linear guide rails, and the two linear guide rails are symmetrically installed along the injection molding main machine.

[0011] When the spiral blades are rotating, the granular materials can be pushed and transported, and the conical guide bucket can be driven to rotate together. Through the conical surface on the outside of the conical guide bucket, the falling granular materials can be guided by the conical guide bucket to guide the granular materials in the direction of the spiral blades pushing them, so that the granular materials can be pushed by the rotating spiral blades in time, reducing the contact between the materials and the edges of the spiral blades and making it less likely for the materials to get stuck.

[0012] Preferably, the spiral blade is installed in the middle of the inner cavity of the injection cylinder, and the spiral blade passes through the center of the conical guide bucket.

[0013] Preferably, the injection molding cylinder passes through the center of the first annular tube and the center of the second annular tube, and the air outlet of the second annular tube passes through the top of the inner cavity of the heat preservation cylinder and extends to the outside thereof.

[0014] Preferably, a feeding mechanism is installed on the outer cylindrical surface of the injection molding cylinder and close to the injection molding main machine, and the feeding mechanism includes a storage bin, and the discharge port at the bottom of the storage bin is installed at the top of the outer cylindrical surface of the injection molding cylinder, and a tortuous air pipe is installed on the inner wall of the storage bin and close to the bottom, and the air inlet end of the tortuous air pipe is connected with the air outlet end of the second annular pipe, and a hopper is installed on the outer cylindrical surface of the storage bin and close to the top, and a stepping motor is installed in the middle of the top of the storage bin, and a rotating rod is rotatably installed in the middle of the inside of the storage bin, and an intermittent feeding assembly is installed on the outer cylindrical surface of the rotating rod and close to the hopper, and a material shifting assembly is installed at the bottom end of the rotating rod and close to the tortuous air pipe.

[0015] Preferably, the support legs on the outer surface of the storage bin are fixedly mounted to the sides of the top of the injection molding main machine by screws, and the storage bin is installed vertically.

[0016] Preferably, the intermittent feeding assembly comprises a fixed ring and a rotating disc, the outer edge of the fixed ring is fixedly installed with the inner wall of the storage bin through a pin shaft, the rotating rod passes through the center of the fixed ring, the center of the rotating disc is fixedly installed with the outer circular surface of the rotating rod, the inner wall of the storage bin and close to the rotating disc is fixedly installed with a V-shaped scraper, the top of the rotating disc and close to the hopper discharge port is provided with an arc-shaped opening, the top of the fixed ring and close to the arc-shaped opening is provided with a circular opening, the rotating rod is rotated by rotating the output end of the stepper motor, and the rotating disc can be driven to rotate together, and the position of the hopper discharge port corresponds to the position of the arc-shaped opening, so that the granular material falls into the arc-shaped opening, and the rotating disc rotates, and when the arc-shaped opening and the circular opening overlap up and down, the granular material in the arc-shaped opening can fall;

[0017] By continuously rotating the disc, the position of the arc-shaped opening is staggered with the position of the circular opening, and material unloading can be suspended, thereby realizing intermittent material loading, and material accumulation is not likely to occur.

[0018] Preferably, the V-shaped scraper is installed directly above the arc-shaped opening, and the position of the circular opening corresponds to the position of the arc-shaped opening. As the rotating disc rotates, the particulate material falling on the top of the rotating disc contacts the V-shaped scraper, and the V-shaped scraper can gather the particulate material to the middle of the arc-shaped opening, making it easier for the particulate material to fall into the arc-shaped opening.

[0019] Preferably, the material-discharging assembly includes a conical block, the top of the conical block is fixedly mounted on the bottom end of the rotating rod, a rotating connector is installed at the bottom of the conical block, a material-discharging blade is fixedly mounted on the conical surface of the outer surface of the conical block, a blowing hole is opened at the conical surface of the outer surface of the conical block and close to the material-discharging blade, the top of the zigzag air pipe is sealingly mounted with the bottom end of the rotating connector, the zigzag air pipe is connected to the blowing hole through a rotating connector, when the rotating rod rotates, it can drive the material-discharging assembly to rotate as a whole, and under the rotating connection of the rotating connector, the conical block can rotate smoothly, and the structure is not prone to jamming, and the conical block is used to drive the material-discharging blade to rotate, and combined with the material-discharging blades evenly distributed on the conical surface outside the conical block, the falling granular material can be evenly spread.

[0020] Preferably, the material-shifting blades are installed at an angle, and the material-shifting blades are evenly distributed on the conical surface of the outer surface of the conical block. The heat transfer principle is utilized to heat up the air in the first annular tube, the second annular tube and the heat-conducting tube, and the staff turns on the fan to work. The hot air in the first annular tube, the second annular tube and the heat-conducting tube is blown out by the blowing power of the fan, and the hot air is blown from the blowing hole to the inside of the storage bin under the transportation of the zigzag air pipe, so that the material in the storage bin can be heated, and the granular material can be preheated.

[0021] As the rotating disc rotates, the air outlet of the hopper on the top of the storage bin can be blocked by staggering the arc-shaped opening and the circular opening, thereby extending the contact time between the hot air and the granular material.

[0022] The present invention provides an injection molding device for processing a DC brushless cooling fan. It has the following beneficial effects:

[0023] 1. The injection molding equipment for processing the DC brushless cooling fan can drive the spiral blade to rotate by the rotation of the output end of the servo motor, so that the granular material falling into the injection molding cylinder is driven by the rotating spiral blade to move to the position of the discharge port, and the granular material is heated and melted by the heater to make the material in liquid state. Then, under the guidance of the injection molding cylinder and by using the conical discharge port of the injection molding cylinder, the outflow speed of the liquid material can be accelerated, thereby promoting the injection molding of the material.

[0024] 2. The injection molding equipment for processing the DC brushless cooling fan can push and transport the granular materials when the spiral blades are rotating, and drive the conical guide bucket to rotate together. Through the conical surface on the outside of the conical guide bucket, the falling granular materials can be guided by the conical guide bucket to guide the granular materials in the direction of the spiral blades pushing the materials, so that the granular materials can be pushed by the rotating spiral blades in time, reducing the contact between the materials and the edges of the spiral blades, and it is not easy to get stuck.

[0025] 3. The injection molding equipment for processing the DC brushless cooling fan uses a heat preservation cylinder to cover the outside of the injection molding cylinder, so that a cavity can be formed between the heat preservation cylinder and the injection molding cylinder. Through the principle of heat transfer, the air temperature inside the heat preservation cylinder is increased, thereby keeping the injection molding cylinder warm and reducing heat loss.

[0026] Fourth, the injection molding equipment for processing the DC brushless cooling fan makes the position of the hopper discharge port correspond to the position of the arc-shaped port, so that the granular material falls into the arc-shaped port. When the rotating disc rotates, the arc-shaped port and the circular port overlap up and down, and the granular material in the arc-shaped port can fall. The rotating disc rotates continuously, so that the position of the arc-shaped port is staggered with the position of the circular port, and the material discharge can be suspended, thereby realizing intermittent feeding, and it is not easy to cause material accumulation.

[0027] 5. The injection molding equipment for processing the DC brushless cooling fan, as the rotating disc rotates, the granular materials falling on the top of the rotating disc come into contact with the V-shaped scraper, and the V-shaped scraper can gather the granular materials to the middle of the arc-shaped mouth, making it easier for the granular materials to fall into the arc-shaped mouth.

[0028] 6. The injection molding equipment for processing the DC brushless cooling fan uses the rotating connection of the rotating connector to make the conical block rotate smoothly, and it is not easy to get the structure stuck. The conical block is used to drive the material-dispensing blades to rotate, and the material-dispensing blades are evenly distributed on the conical surface outside the conical block, so that the falling granular materials can be evenly dispersed.

[0029] 7. The injection molding equipment for processing the DC brushless cooling fan uses the principle of heat transfer to heat up the air in the first annular tube, the second annular tube and the heat conducting tube, and the staff turns on the fan to work. The blowing power of the fan blows out the hot air in the first annular tube, the second annular tube and the heat conducting tube, and under the transportation of the zigzag air pipe, the hot air is blown from the blowing hole to the inside of the storage bin, so that the material in the storage bin can be heated, and the granular material can be preheated.

[0030] 8. The injection molding equipment for processing the DC brushless cooling fan can block the air outlet of the hopper on the top of the storage bin by staggering the arc-shaped opening and the circular opening as the rotating disc rotates, thereby prolonging the contact time between the hot air and the granular material. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The overall structural diagram of the injection molding equipment for processing the DC brushless cooling fan of the present invention;

[0032] Figure 2 A schematic diagram of the cross-sectional structure of an injection molding device for processing a brushless DC cooling fan of the present invention;

[0033] Figure 3It is a schematic diagram of the connection structure between the injection molding mechanism and the frame of the present invention;

[0034] Figure 4 It is a schematic diagram of the overall structure of the injection molding mechanism of the present invention;

[0035] Figure 5 This is a schematic diagram of the overall structure of the thermal insulation assembly of the present invention;

[0036] Figure 6 It is a schematic diagram of the connection structure between the feeding mechanism and the injection molding cylinder of the present invention;

[0037] Figure 7 It is a schematic diagram of the overall structure of the feeding mechanism of the present invention;

[0038] Figure 8 This is a schematic diagram of the overall structure of the intermittent feeding assembly of the present invention;

[0039] Fig. 9 It is a schematic diagram of the overall structure of the material shifting assembly of the present invention.

[0040] In the figure: 1, frame; 2, protective cover; 3, hydraulic cylinder; 4, injection molding mechanism; 5, insulation component; 6, feeding mechanism; 41, linear guide rail; 42, injection molding main machine; 43, servo motor; 44, injection molding cylinder; 45, spiral blade; 46, heater; 47, tapered guide bucket; 51, insulation cylinder; 52, first annular tube; 53, second annular tube; 54, fan; 55, heat conduction pipe; 61, storage bin; 62, zigzag air pipe; 63, hopper; 64, stepping motor; 65, rotating rod; 66, intermittent feeding component; 67, material shifting component; 661, fixed ring; 662, rotating disc; 663, V-shaped scraper; 664, arc mouth; 665, circular mouth; 671, tapered block; 672, rotating connector; 673, material shifting blade; 674, blowing hole. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0042] The first embodiment, as Figure 1-Figure 4 As shown, the present invention provides a technical solution: an injection molding device for processing a DC brushless cooling fan, comprising:

[0043] A frame 1, a protective cover 2 is fixedly installed on the side of the top of the frame 1, and a hydraulic cylinder 3 is installed in the middle of the outer surface of the protective cover 2;

[0044] An injection molding mechanism 4, which is used to melt and convey the material of the DC brushless cooling fan, and is installed in the middle of the top of the frame 1;

[0045] The injection molding mechanism 4 includes a linear guide rail 41, which is installed on the top of the frame 1 and close to the protective cover 2. An injection molding main machine 42 is slidably installed on the top of the linear guide rail 41. A servo motor 43 is installed on the outer surface of the injection molding main machine 42 and close to the hydraulic cylinder 3. An injection molding cylinder 44 is installed at one end of the injection molding main machine 42 away from the servo motor 43. A spiral blade 45 is rotatably installed in the middle of the inner cavity of the injection molding cylinder 44. The output end of the servo motor 43 is fixedly installed between the coupling and the rotating shaft at the center of the spiral blade 45. A heater 46 is installed on the inner wall of the injection molding cylinder 44. A conical guide bucket 47 is fixedly installed at the edge of the spiral surface of the spiral blade 45 and near the injection molding main machine 42. The staff turns on the servo motor 43 to work. The spiral blade 45 can be driven to rotate by the rotation of the output end of the servo motor 43, so that the granular material falling into the injection molding cylinder 44 is driven by the rotating spiral blade 45 to move to the position of the discharge port, and the granular material is heated and melted by the heater 46, so that the material is in a liquid state, and can be guided by the injection molding cylinder 44. The discharge port of the injection molding cylinder 44 is conical, which can speed up the outflow speed of the liquid material;

[0046] The side of the outside of the injection molding main machine 42 is fixedly installed through a bracket and the telescopic end of the hydraulic cylinder 3 . There are two linear guide rails 41 , and the two linear guide rails 41 are symmetrically installed along the injection molding main machine 42 .

[0047] When the spiral blade 45 is rotating, the granular material can be pushed and transported, and the conical guide bucket 47 can be driven to rotate together. Through the conical surface on the outer side of the conical guide bucket 47, the falling granular material can be guided by the conical guide bucket 47 to guide the granular material in the direction of the spiral blade 45 pushing the material, so that the granular material can be pushed by the rotating spiral blade 45 in time, reducing the contact between the material and the edge of the spiral blade 45, and preventing the material from getting stuck.

[0048] The spiral blade 45 is installed in the middle of the inner cavity of the injection cylinder 44 , and the spiral blade 45 passes through the center of the conical guide bucket 47 .

[0049] The second embodiment, as Figure 1-Figure 5 As shown, based on the first embodiment:

[0050] A heat preservation component 5, which is used to reduce the temperature loss in the injection molding cylinder 44, and is installed on the outer cylindrical surface of the injection molding cylinder 44;

[0051] Among them, the insulation component 5 includes an insulation cylinder 51, which is installed in the middle of the outer cylindrical surface of the injection molding cylinder 44. A first annular tube 52 is installed in the inner cavity of the insulation cylinder 51 and near the discharge end of the injection molding cylinder 44. A second annular tube 53 is installed in the inner cavity of the insulation cylinder 51 and at one end away from the first annular tube 52. A fan 54 is installed at the bottom of the insulation cylinder 51 and near the first annular tube 52. The air outlet of the fan 54 is connected to the air inlet of the first annular tube 52. A heat conduction pipe 55 is connected between the first annular tube 52 and the second annular tube 53 and near the injection molding cylinder 44. By covering the outer side of the injection molding cylinder 44 with the insulation cylinder 51, a cavity can be formed between the insulation cylinder 51 and the injection molding cylinder 44. Through the principle of heat transfer, the air temperature inside the insulation cylinder 51 is increased, thereby insulating the injection molding cylinder 44.

[0052] The injection tube 44 passes through the center of the first annular tube 52 and the center of the second annular tube 53 . The air outlet of the second annular tube 53 passes through the top of the inner cavity of the heat preservation tube 51 and extends to the outside thereof.

[0053] The third embodiment, as Figure 1-Figure 9 As shown, based on the first and second embodiments:

[0054] A feeding mechanism 6 is installed on the outer cylindrical surface of the injection cylinder 44 and near the injection molding main machine 42, and the feeding mechanism 6 includes a storage bin 61. The discharge port at the bottom of the storage bin 61 is installed at the top of the outer cylindrical surface of the injection cylinder 44, and a tortuous air pipe 62 is installed on the inner wall of the storage bin 61 and near the bottom. The air inlet end of the tortuous air pipe 62 is connected to the air outlet end of the second annular pipe 53, and a hopper 63 is installed on the outer cylindrical surface of the storage bin 61 and near the top. A stepper motor 64 is installed in the middle of the top of the storage bin 61, and a rotating rod 65 is rotatably installed in the middle of the inside of the storage bin 61. An intermittent feeding assembly 66 is installed on the outer cylindrical surface of the rotating rod 65 and near the hopper 63, and a material shifting assembly 67 is installed at the bottom end of the rotating rod 65 and near the tortuous air pipe 62.

[0055] The supporting legs on the outer surface of the storage bin 61 are fixedly mounted to the sides of the top of the injection molding main machine 42 by screws, and the storage bin 61 is installed vertically.

[0056] The intermittent feeding assembly 66 includes a fixed ring 661 and a rotating disc 662. The outer edge of the fixed ring 661 is fixedly installed with the inner wall of the storage bin 61 through a pin shaft. The rotating rod 65 passes through the center of the fixed ring 661. The center of the rotating disc 662 is fixedly installed with the outer circumference of the rotating rod 65. A V-shaped scraper 663 is fixedly installed on the inner wall of the storage bin 61 and near the rotating disc 662. The top of the rotating disc 662 and the position near the discharge port of the hopper 63 are opened. An arc-shaped opening 664 is provided, and a circular opening 665 is provided at the top of the fixed ring 661 and near the arc-shaped opening 664. The staff puts the granular material from the hopper 63 into the storage bin 61, and turns on the stepper motor 64 to work. By rotating the output end of the stepper motor 64, the rotating rod 65 is rotated, and the rotating disc 662 can be driven to rotate together, and the position of the discharge port of the hopper 63 corresponds to the position of the arc-shaped opening 664, so that the granular material falls into the arc-shaped opening 664;

[0057] As the rotating disc 662 rotates, the arc-shaped opening 664 and the circular opening 665 overlap each other, so that the granular material in the arc-shaped opening 664 can fall down, and the rotating disc 662 continues to rotate so that the position of the arc-shaped opening 664 and the circular opening 665 are staggered, so that the material unloading can be suspended, thereby realizing intermittent loading.

[0058] The V-shaped scraper 663 is installed directly above the arc-shaped opening 664, and the position of the circular opening 665 corresponds to the position of the arc-shaped opening 664. As the rotating disc 662 rotates, the particulate material falling on the top of the rotating disc 662 contacts the V-shaped scraper 663. The V-shaped scraper 663 can gather the particulate material to the middle of the arc-shaped opening 664, making it easier for the particulate material to fall into the arc-shaped opening 664.

[0059] The material-dispensing assembly 67 includes a conical block 671, the top of which is fixedly mounted on the bottom of the rotating rod 65, a rotating connector 672 is mounted on the bottom of the conical block 671, a material-dispensing blade 673 is fixedly mounted on the conical surface of the outer surface of the conical block 671, and a blowing hole 674 is provided on the conical surface of the outer surface of the conical block 671 and close to the material-dispensing blade 673. The top of the zigzag air pipe 62 is sealed with the bottom of the rotating connector 672, and the zigzag air pipe 62 and the blowing hole are sealed. 674 are connected by a rotating connector 672. When the rotating rod 65 rotates, the material-dispensing assembly 67 can be driven to rotate as a whole. Under the rotating connection of the rotating connector 672, the conical block 671 can rotate smoothly and the structure is not easily stuck. The conical block 671 is used to drive the material-dispensing blade 673 to rotate, and the material-dispensing blade 673 is evenly distributed on the conical surface outside the conical block 671, so that the falling granular material can be evenly dispersed.

[0060] The material-shifting blades 673 are installed at an angle, and are evenly distributed on the conical surface of the outer surface of the conical block 671. The heat transfer principle is used to heat up the air in the first annular tube 52, the second annular tube 53 and the heat-conducting tube 55. The staff turns on the fan 54 to blow out the hot air in the first annular tube 52, the second annular tube 53 and the heat-conducting tube 55 through the blowing power of the fan 54. The hot air is transported by the zigzag air pipe 62, and is blown from the blowing hole 674 to the inside of the storage bin 61, thereby heating the material in the storage bin 61.

[0061] As the rotating disc 662 rotates, the arc-shaped opening 664 and the circular opening 665 are staggered, so that the air outlet of the hopper 63 at the top of the storage bin 61 can be blocked, thereby extending the contact time between the hot air and the granular materials.

[0062] When in use, firstly, the injection molding machine 42 is turned on to preheat the equipment, and the heat preservation cylinder 51 is covered on the outside of the injection molding cylinder 44, so that a cavity can be formed between the heat preservation cylinder 51 and the injection molding cylinder 44. Through the principle of heat transfer, the air temperature inside the heat preservation cylinder 51 is increased, thereby keeping the injection molding cylinder 44 warm.

[0063] The staff puts the granular material from the hopper 63 into the storage bin 61, and turns on the stepper motor 64 to work. By rotating the output end of the stepper motor 64, the rotating rod 65 is rotated, and the rotating disc 662 is driven to rotate together, and the position of the discharge port of the hopper 63 corresponds to the position of the arc-shaped opening 664, so that the granular material falls into the arc-shaped opening 664;

[0064] As the rotating disc 662 rotates, the arc-shaped opening 664 and the circular opening 665 overlap each other, so that the granular materials in the arc-shaped opening 664 can fall down, and the rotating disc 662 continues to rotate, so that the position of the arc-shaped opening 664 and the position of the circular opening 665 are staggered, and the material discharge can be stopped, thereby realizing intermittent material feeding;

[0065] At the same time, the heat transfer principle is used to heat up the air in the first annular tube 52, the second annular tube 53 and the heat conducting tube 55, and the staff turns on the fan 54 to blow out the hot air in the first annular tube 52, the second annular tube 53 and the heat conducting tube 55 through the blowing power of the fan 54. The hot air is transported by the zigzag air pipe 62, and blows from the blowing hole 674 to the inside of the storage bin 61, so that the material in the storage bin 61 can be heated.

[0066] As the rotating disc 662 rotates, the arc-shaped opening 664 and the circular opening 665 are staggered, so that the air outlet of the hopper 63 at the top of the storage bin 61 can be blocked, thereby extending the contact time between the hot air and the granular material;

[0067] When the rotating rod 65 rotates, the material-dispensing assembly 67 can be driven to rotate as a whole, and under the rotating connection of the rotating connector 672, the conical block 671 can rotate smoothly, and the structure is not easily stuck. The conical block 671 drives the material-dispensing blades 673 to rotate, and the material-dispensing blades 673 are evenly distributed on the conical surface outside the conical block 671, so that the falling granular materials can be evenly dispersed.

[0068] The staff turns on the servo motor 43 to work, and the spiral blade 45 can be driven to rotate by the rotation of the output end of the servo motor 43;

[0069] When the spiral blade 45 rotates, the granular material can be pushed and conveyed, and the conical guide bucket 47 can be driven to rotate together. Through the conical surface on the outer side of the conical guide bucket 47, the falling granular material can be guided by the conical guide bucket 47 to guide the granular material toward the pushing direction of the spiral blade 45, so that the granular material can be pushed by the rotating spiral blade 45 in time, reducing the contact between the material and the edge of the spiral blade 45, and it is not easy to get stuck.

[0070] The granular material that falls into the injection molding cylinder 44 is driven by the rotating spiral blades 45 to move toward the position of the discharge port, and the granular material is heated and melted by the heater 46, so that the material is in liquid state. Then, under the guidance of the injection molding cylinder 44, and by utilizing the conical discharge port of the injection molding cylinder 44, the outflow speed of the liquid material can be accelerated, so that effective injection molding can be performed.

[0071] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An injection molding device for processing a DC brushless cooling fan, characterized in that: include: A frame (1), a protective cover (2) being fixedly mounted on the side of the top of the frame (1), and a hydraulic cylinder (3) being mounted in the middle of the outer surface of the protective cover (2); An injection molding mechanism (4), the injection molding mechanism (4) being used to melt and convey the material of the DC brushless cooling fan, the injection molding mechanism (4) being installed in the middle of the top of the frame (1); The injection molding mechanism (4) comprises a linear guide rail (41), the linear guide rail (41) being mounted on the top of the frame (1) and close to the protective cover (2), an injection molding main machine (42) being slidably mounted on the top of the linear guide rail (41), a servo motor (43) being mounted on the outer surface of the injection molding main machine (42) and close to the hydraulic cylinder (3), an injection molding cylinder (44) being mounted on one end of the injection molding main machine (42) away from the servo motor (43), a spiral blade (45) being rotatably mounted in the middle of the inner cavity of the injection molding cylinder (44), an output end of the servo motor (43) being fixedly mounted between a coupling and a rotating shaft at the center of the spiral blade (45), a heater (46) being mounted on the inner wall of the injection molding cylinder (44), and a conical guide bucket (47) being fixedly mounted at the edge of the spiral surface of the spiral blade (45) and close to the injection molding main machine (42); The spiral blade (45) is installed in the middle of the inner cavity of the injection cylinder (44), and the spiral blade (45) passes through the center of the conical guide bucket (47); A heat-insulating component (5), the heat-insulating component (5) being used to reduce temperature loss in the injection molding cylinder (44), the heat-insulating component (5) being mounted on the outer cylindrical surface of the injection molding cylinder (44); The heat-insulating assembly (5) comprises a heat-insulating cylinder (51), the heat-insulating cylinder (51) being installed in the middle of the outer cylindrical surface of the injection molding cylinder (44), a first annular tube (52) being installed in the inner cavity of the heat-insulating cylinder (51) and close to the discharge end of the injection molding cylinder (44), a second annular tube (53) being installed in the inner cavity of the heat-insulating cylinder (51) and at one end away from the first annular tube (52), a fan (54) being installed at the bottom of the heat-insulating cylinder (51) and close to the first annular tube (52), an air outlet of the fan (54) being connected to an air inlet of the first annular tube (52), and a heat-conducting tube (55) being connected between the first annular tube (52) and the second annular tube (53) and close to the injection molding cylinder (44); A feeding mechanism (6) is installed on the outer cylindrical surface of the injection molding cylinder (44) and near the injection molding main machine (42). The feeding mechanism (6) includes a storage bin (61). The discharge port at the bottom of the storage bin (61) is installed at the top of the outer cylindrical surface of the injection molding cylinder (44). A zigzag air pipe (62) is installed on the inner wall of the storage bin (61) and near the bottom. The air inlet end of the zigzag air pipe (62) is connected to the air outlet end of the second annular pipe (53). A hopper (63) is installed on the outer cylindrical surface of the storage bin (61) near the top, a stepping motor (64) is installed in the middle of the top of the storage bin (61), a rotating rod (65) is rotatably installed in the middle of the interior of the storage bin (61), an intermittent feeding assembly (66) is installed on the outer cylindrical surface of the rotating rod (65) near the hopper (63), and a material shifting assembly (67) is installed at the bottom end of the rotating rod (65) near the zigzag air pipe (62); The intermittent feeding assembly (66) comprises a fixed circular ring (661) and a rotating circular disc (662); the outer edge of the fixed circular ring (661) is fixedly mounted to the inner wall of the storage bin (61) via a pin shaft; the rotating rod (65) passes through the center of the fixed circular ring (661); the center of the rotating circular disc (662) is fixedly mounted to the outer circumferential surface of the rotating rod (65); a V-shaped scraper (663) is fixedly mounted on the inner wall of the storage bin (61) near the rotating circular disc (662); an arc-shaped opening (664) is provided at the top of the rotating circular disc (662) near the discharge port of the hopper (63); and a circular opening (665) is provided at the top of the fixed circular ring (661) near the arc-shaped opening (664).

2. The injection molding equipment for processing a DC brushless cooling fan according to claim 1, characterized in that: The side of the outside of the injection molding main machine (42) is fixedly mounted via a bracket and the telescopic end of the hydraulic cylinder (3), and there are two linear guide rails (41), which are symmetrically mounted along the injection molding main machine (42).

3. The injection molding equipment for processing a DC brushless cooling fan according to claim 1, characterized in that: The injection cylinder (44) passes through the center of the first annular tube (52) and the center of the second annular tube (53), and the air outlet of the second annular tube (53) passes through the top of the inner cavity of the heat preservation cylinder (51) and extends to the outside thereof.

4. The injection molding equipment for processing a DC brushless cooling fan according to claim 1, characterized in that: The support legs on the outer surface of the material storage bin (61) are fixedly mounted to the sides of the top of the injection molding main machine (42) by means of screws, and the material storage bin (61) is mounted vertically.

5. The injection molding equipment for processing a DC brushless cooling fan according to claim 1, characterized in that: The V-shaped scraper (663) is installed directly above the arc-shaped opening (664), and the position of the circular opening (665) corresponds to the position of the arc-shaped opening (664).

6. The injection molding equipment for processing a DC brushless cooling fan according to claim 1, characterized in that: The material shifting assembly (67) comprises a conical block (671), the top of the conical block (671) is fixedly mounted on the bottom end of the rotating rod (65), a rotating connector (672) is mounted on the bottom of the conical block (671), a material shifting blade (673) is fixedly mounted on the conical surface of the outer surface of the conical block (671), a blowing hole (674) is provided on the conical surface of the outer surface of the conical block (671) and close to the material shifting blade (673), the top end of the zigzag air pipe (62) is sealedly mounted on the bottom end of the rotating connector (672), and the zigzag air pipe (62) and the blowing hole (674) are connected via the rotating connector (672).

7. The injection molding equipment for processing a DC brushless cooling fan according to claim 6, characterized in that: The material shifting blades (673) are installed at an angle, and the material shifting blades (673) are evenly distributed on the conical surface of the outer surface of the conical block (671).

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