Electronic connector injection molding processing equipment capable of recycling and regenerating waste
By employing multiple small-diameter injection channels and detachable gate components in the injection molding equipment, the problem of uneven injection caused by a single inlet of the gate sleeve is solved, achieving safe and reliable injection molding and economical equipment maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-02
- Publication Date
- 2026-03-31
AI Technical Summary
The existing injection molding equipment has a single inlet for the sprue sleeve, which easily leads to molten plastic impacting one side of the sleeve and flowing off-center along the wall, affecting the injection molding effect.
The design employs multiple evenly distributed small-diameter grouting channels and detachable gate components, combined with a detachable conical core and guide column structure, to achieve smooth opening and closing of the moving and stationary modules, and ensures uniform grout flow through the drainage cone and closed grouting channels.
It improves the uniformity and flow rate of grouting, avoids local shear overheating, ensures safe and reliable injection molding, and reduces the cost of replacing equipment parts.
Smart Images

Figure CN121756523A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of injection molding technology, specifically to an injection molding processing equipment for electronic connectors that recycles and regenerates waste materials. Background Technology
[0002] Electronic connectors, also known as circuit connectors or electrical connectors, are conductor devices that bridge two conductors in a circuit, allowing current or signals to flow from one conductor to the other. An electronic connector is an electrical system that provides a separable interface for connecting two sub-electronic systems. Simply put, a connector is a component used to complete the electrical connection between circuits or electronic devices; it is the bridge between the two. The production of electronic connectors requires injection molding, thus necessitating the use of injection molding equipment.
[0003] For example, Chinese Patent Publication No. CN111421771A discloses a precision plastic injection molding processing equipment, including a molding machine, a feed inlet, a heater, a control panel, and a support platform. The feed inlet is installed at the upper end of the heater, the molding machine is installed on the left side of the heater, the control panel is embedded in the front surface of the support platform, and the lower end of the molding machine is installed on the upper surface of the support platform. The molding machine consists of a power rod, a compressor, a pusher, a fixed plate, a molding mechanism, and an injection molder. The molding mechanism includes a compression plate, a molding die, a cutting device, an injection tube, and a hydraulic rod. The mold is installed inside the compression plate. The cutting device is embedded in the left end of the hydraulic rod. The injection tube is connected to the hydraulic rod. The right end of the injection tube is clearance-fitted with the injection molding machine. The cutting device is a ring structure and is located on the same central axis as the injection tube. The inner side of the cutting device is on the same straight line as the inner wall of the mold. The compressor acts on the pusher and drives the fixed plate to move towards the molding mechanism, so that the compression plate in the molding mechanism and the mold are closed. The injection molding machine injects molten plastic liquid into the cavity of the mold through the injection tube under high pressure, completing the filling of the product body.
[0004] In existing technical references, injection molding can be performed on the mold using an injection molding machine. However, with such a design, the sprue bushing has a single inlet, which can easily lead to molten plastic impacting one side of the bushing and flowing off-center along the wall, causing localized shear overheating and affecting the overall injection molding effect. Summary of the Invention
[0005] To solve the above-mentioned technical problems, the present invention is implemented through the following technical solution: An injection molding processing equipment for recycling and regenerating electronic connectors from waste materials includes: The machine body, and a hydraulic cylinder fixedly installed on the top side of the machine body, wherein an injection molding mechanism is installed on the top of the machine body and at the end away from the hydraulic cylinder, and a material storage mechanism is installed on the top of the injection molding mechanism; A molding die includes a fixed module and a moving module. The fixed module is fixedly installed in the middle of the top of the machine body, and the moving module is fixedly installed in the telescopic end of the hydraulic cylinder. A guide post is fixedly installed between the surface of the fixed module and the outer shell surface of the hydraulic cylinder. The moving module is slidably installed between the outer circular surface of the guide post and the fixed module. A gate assembly is installed in the middle of the surface of the fixed module. An ejector is installed on the surface of the moving module near the guide post. By extending the telescopic end of the hydraulic cylinder, a pushing force can be applied to the moving module. Under the guidance of the guide post, the moving module moves closer to the fixed module. The mold can then be closed after the moving module and the fixed module are matched, and the operation of the hydraulic cylinder is paused. The telescopic end of the hydraulic cylinder is kept in an extended state so that the fixed module and the moving module are closed and pressure is maintained. By utilizing the contraction of the telescopic end of the hydraulic cylinder, a pulling force can be applied to the moving module. Under the guidance of the guide column, the moving module moves away from the stationary module, thus enabling mold opening. This ensures smooth overall movement of the moving module, smooth mold opening and closing, and reduces the likelihood of jamming, making it safe and reliable. As the moving module continues to move away from the stationary module, the end of the ejector contacts the body of the hydraulic cylinder. Combined with the action and reaction forces, the end of the ejector is subjected to the reverse force of the hydraulic cylinder body, causing the ejector to move towards the interior of the moving module. This ejects the electronic connector from the cavity in the middle of the moving module. The gating assembly includes a gating sleeve and a conical core. The gating sleeve is detachably and fixedly installed on the surface of the fixed module. The conical core is detachably and fixedly installed in the middle of the interior of the gating sleeve. A guide cone is fixedly connected to the center of the surface of the conical core. The guide cone is inserted into the center of the inner cavity of the fixed module. A first groove is formed on the surface of the conical core away from the guide cone. A second groove is formed on the inner wall of the gating sleeve near the first groove. The first and second grooves form a closed grouting channel, and the multiple grouting channels are evenly distributed. The slurry enters from the inlet at the end of the sprue sleeve and is injected through evenly distributed injection channels. Guided by the flow cone, the slurry flows smoothly into the cavity composed of the stationary and moving modules. Compared to the single-channel technology of existing technologies, this not only ensures uniform injection but also increases the flow rate of the slurry by using evenly distributed small-diameter injection channels. The use of small amounts of slurry and high injection speed avoids unilateral impact and wall deviation of the molten slurry within the sleeve from a single inlet, reducing the risk of localized shear overheating and making injection molding safe and reliable.
[0006] Preferably, the fixed module and the moving module are installed at the same height, the guide pillars are installed horizontally, there are four guide pillars, and the four guide pillars are evenly distributed between the fixed module and the outer shell of the hydraulic cylinder.
[0007] The conical core is detachably installed inside the sprue bushing, and the sprue bushing is detachably installed on the surface of the fixed module. This makes the sprue assembly easy to disassemble and install, which helps to clean and maintain the surface of the conical core and the inner wall of the sprue bushing. At the same time, the conical core can be replaced and repaired without replacing the entire sprue assembly, saving the replacement cost of equipment parts.
[0008] Preferably, the axis at the center of the conical core coincides with the axis of the sprue sleeve, and the axis at the center of the drain cone coincides with the axis at the center of the conical core.
[0009] Preferably, both the first groove and the second groove are arc-shaped, and the outlet of the first groove penetrates the flange on the surface of the conical core.
[0010] Preferably, the injection molding mechanism includes a strip guide rail, an injection molding machine, and a cylinder. The strip guide rail is fixedly installed at the edge of the top of the machine body. The injection molding machine is slidably installed on the top of the strip guide rail. The cylinder is fixedly installed on the top of the machine body near the strip guide rail. The telescopic rod of the cylinder is fixedly installed to the bottom of the surface of the injection molding machine. An injection cylinder is installed on the surface of the injection molding machine near the sprue sleeve. A heat insulation cover is fixedly connected to the middle of the surface of the injection cylinder. A first heater and a second heater are sequentially fixedly installed at the top and bottom of the inner cavity of the heat insulation cover. A first heater and a second heater are sequentially installed on the surface of the injection cylinder. The system includes a first heating ring and a second heating ring. A suction fan is installed on the side of the surface of the insulation cover. The material storage mechanism is installed between the top of the injection molding machine and the suction fan. The air inlet of the suction fan is connected to the insulation cover. The first heating ring is heated by a first heater, and the second heating ring is heated by a second heater. This allows the first and second heating rings to heat the injection molding cylinder, reducing the impact of external low temperatures on the injection molding cylinder and preventing localized low temperatures of the slurry on the inner wall of the injection molding cylinder. At the same time, under the principle of heat transfer, the air temperature inside the insulation cover is increased, which can insulate the injection molding cylinder and reduce heat loss.
[0011] Preferably, the strip guide rails are installed horizontally, there are two strip guide rails, and the two strip guide rails are installed symmetrically along the central axis of the injection molding machine. The cylinders are installed horizontally, there are two cylinders, and the two cylinders are installed symmetrically along the axis of the injection molding cylinder.
[0012] The first heater can independently control the first heating coil, and the second heater can independently control the second heating coil. By using the alternating arrangement of the first and second heating coils, the temperature provided by the injection barrel can be controlled by fully activating both the first and second heating coils, or by activating only the first or second heating coil. This allows for adaptation to different material temperatures within the injection barrel, preventing overheating and avoiding damage to the material inside the injection barrel caused by excessive temperature.
[0013] Preferably, the first heating coil is electrically connected to the first heater, and the second heating coil is electrically connected to the second heater. The first heating coil is evenly distributed on the surface of the injection molding cylinder, and the second heating coil is evenly distributed on the surface of the injection molding cylinder. The first heating coil and the second heating coil are arranged alternately.
[0014] Preferably, the storage mechanism includes a storage bin, the bottom of which is installed at the middle of the top of the injection molding machine. A feeding conveying pipe is installed at the top of the storage bin. A cylinder is fixedly installed on the surface of the storage bin. An air pipe is wound around the middle of the surface of the storage bin. The air inlet at the top of the air pipe penetrates the inner wall of the cylinder and extends to its outside. A right-angled pipe is installed between the air inlet at the top of the air pipe and the air outlet of the suction fan. Hot air discharged by the suction fan enters the interior of the right-angled pipe. The connection between the right-angled pipe and the air pipe allows hot air to enter the interior of the air pipe. Combined with the air pipe being wound around the surface of the storage bin and being spiral-shaped, the contact area between the air pipe and the storage bin is increased, improving heat transfer efficiency and causing the temperature inside the storage bin to rise rapidly. This results in the temperature of the particles inside the storage bin increasing under the principle of heat transfer, reducing the temperature difference when the injection molding machine melts the granular material.
[0015] Preferably, the bottom end of the right-angled pipe is connected to the air outlet of the suction fan, and the top end of the right-angled pipe is connected to the air inlet at the top of the air pipe via a connector.
[0016] Preferably, the air pipe is spiral-shaped, the spiral curved surface of the inner side of the air pipe is in contact with the outer circular surface of the storage bin, and the exhaust port at the bottom of the air pipe penetrates the inner wall of the cylinder and extends to its outside.
[0017] This invention provides an injection molding processing equipment for electronic connectors based on waste material recycling. It has the following beneficial effects: I. The electronic connector injection molding equipment for recycling waste materials uses a closed grouting channel composed of a first groove and a second groove, with multiple grouting channels evenly distributed. The grout enters from the inlet at the end of the sprue sleeve and is injected through the evenly distributed grouting channels. The grout is then guided by the flow cone, allowing it to flow smoothly into the cavity composed of the fixed and moving modules. Compared with the single sprue channel of the existing technology, this not only ensures uniform grouting but also increases the flow rate of the grout by using evenly distributed small-diameter grouting channels. It uses a small amount of glue and a high injection speed, thereby avoiding the molten glue from a single inlet from impacting one side of the sleeve and flowing off the wall, which is less likely to cause local overheating and makes the injection molding safe and reliable.
[0018] Second, the electronic connector injection molding equipment for recycling waste materials utilizes a detachable conical core installed inside the sprue sleeve, and the sprue sleeve is detachably installed on the surface of the fixed module. This makes the sprue assembly easy to disassemble and install, which helps to clean and maintain the surface of the conical core and the inner wall of the sprue sleeve. At the same time, the conical core can be replaced and repaired without replacing the entire sprue assembly, saving the replacement cost of equipment parts.
[0019] Third, the electronic connector injection molding equipment for recycling and regenerating waste materials uses a first heater to heat the first heating coil and a second heater to heat the second heating coil. This allows the first and second heating coils to heat the injection cylinder, reducing the impact of external low temperatures on the injection cylinder and preventing localized low temperatures of the slurry on the inner wall of the injection cylinder. At the same time, under the principle of heat transfer, the air temperature inside the insulation cover is increased, which can insulate the injection cylinder and reduce heat loss.
[0020] IV. The electronic connector injection molding processing equipment for recycling and regenerating waste materials can independently control the first heating coil through the first heater and independently control the second heating coil through the second heater. By using the staggered arrangement of the first and second heating coils, the temperature provided by the injection barrel can be controlled by fully opening the first and second heating coils, or by opening the first or second heating coil individually. It can adapt to the appropriate temperature of different materials in the injection barrel, and is not prone to overheating, thus avoiding damage to the materials in the injection barrel caused by overheating.
[0021] 5. The electronic connector injection molding equipment for recycling waste materials uses a suction fan to discharge hot air into a right-angled pipe. The right-angled pipe is connected to an air pipe, allowing hot air to enter the air pipe. The air pipe is wound around the surface of the storage bin, and its spiral shape increases the contact area between the air pipe and the storage bin, improving heat transfer efficiency. This causes the temperature inside the storage bin to rise rapidly, thus increasing the temperature of the particles inside the storage bin through heat transfer. This reduces the temperature difference when the injection molding machine melts the particles. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of the electronic connector injection molding equipment for waste recycling and regeneration according to the present invention. Figure 2 This is a side view of the electronic connector injection molding equipment for waste recycling and regeneration according to the present invention. Figure 3 This is a schematic diagram of the connection structure between the molding die, the machine body, and the hydraulic cylinder of the present invention; Figure 4 This is a schematic diagram of the disassembled structure between the gate assembly and the fixed module of the present invention; Figure 5 This is a schematic diagram of the overall disassembled structure of the gate assembly of the present invention; Figure 6 This is a schematic diagram of the connection structure between the injection molding mechanism and the machine body of the present invention; Figure 7 This is a schematic diagram of the internal structure of the heat insulation cover of the present invention. Figure 8 This is a schematic diagram of the connection structure between the material storage mechanism of the present invention and the injection molding machine and the suction fan; Figure 9 This is a schematic diagram of the internal structure of the cylindrical cross-section of the present invention.
[0023] In the diagram: 1. Machine body; 2. Hydraulic cylinder; 3. Injection molding mechanism; 4. Material storage mechanism; 5. Molding mold; 31. Strip guide rail; 32. Injection molding machine; 33. Cylinder; 34. Injection barrel; 35. Insulation cover; 36. First heater; 37. Second heater; 38. First heating coil; 39. Second heating coil; 310. Suction fan; 41. Material storage bin; 42. Feed conveyor pipe; 43. Cylinder; 44. Air pipe; 45. Right-angle pipe; 51. Fixed module; 52. Moving module; 53. Guide column; 54. Sprue assembly; 55. Ejector; 541. Sprue sleeve; 542. Conical core; 543. Drain cone; 544. First groove; 545. Second groove. Detailed Implementation
[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0025] For the first embodiment, please refer to... Figures 1-5 The present invention provides a technical solution: An injection molding processing equipment for recycling and regenerating electronic connectors from waste materials includes: The machine body 1, and the hydraulic cylinder 2 fixedly installed on the top side of the machine body 1, the top of the machine body 1 and the end away from the hydraulic cylinder 2 are equipped with an injection molding mechanism 3, and the top of the injection molding mechanism 3 is equipped with a material storage mechanism 4. The molding die 5 includes a fixed module 51 and a moving module 52. The fixed module 51 is fixedly installed at the middle of the top of the machine body 1, and the moving module 52 is fixedly installed at the telescopic end of the hydraulic cylinder 2. A guide post 53 is fixedly installed between the surface of the fixed module 51 and the outer shell surface of the hydraulic cylinder 2. The moving module 52 is slidably installed between the outer circular surface of the guide post 53 and the surface of the guide post 53. A gate assembly 54 is installed at the middle of the surface of the fixed module 51. An ejector 55 is installed on the surface of the moving module 52 near the guide post 53. When the hydraulic cylinder 2 is activated, the extension of the telescopic end of the hydraulic cylinder 2 applies a pushing force to the moving module 52. Under the guidance of the guide post 53, the moving module 52 moves towards the position closer to the fixed module 51. The mold is closed after the moving module 52 and the fixed module 51 are matched. The operation of the hydraulic cylinder 2 is then paused, and the telescopic end of the hydraulic cylinder 2 is kept in an extended state. After the fixed module 51 and the moving module 52 are closed, pressure is maintained. When the electronic connector is injection molded, and it is necessary to open the mold of the fixed module 51 and the moving module 52, the hydraulic cylinder 2 is activated again. By contracting the extension end of the hydraulic cylinder 2, a pulling force can be applied to the moving module 52. Under the guidance of the guide column 53, the moving module 52 moves away from the fixed module 51, and the mold can be opened. This makes the overall movement of the moving module 52 smooth, the mold opening and closing smooth, and it is not easy to jam. It is safe and reliable. As the moving module 52 continues to move away from the fixed module 51, the end of the ejector 55 contacts the body of the hydraulic cylinder 2. Combined with the action and reaction forces, the end of the ejector 55 is subjected to the reaction force of the body of the hydraulic cylinder 2. The ejector 55 moves towards the inside of the moving module 52, and the electronic connector in the cavity in the middle of the moving module 52 is ejected. The fixed module 51 and the moving module 52 are installed at the same height. The guide columns 53 are installed horizontally. There are four guide columns 53, and the four guide columns 53 are evenly distributed between the fixed module 51 and the outer shell of the hydraulic cylinder 2.
[0026] The gating assembly 54 includes a gating sleeve 541 and a conical core 542. The gating sleeve 541 is detachably and fixedly installed on the surface of the fixed module 51. The conical core 542 is detachably and fixedly installed in the middle of the interior of the gating sleeve 541. A flow guide cone 543 is fixedly connected to the center of the surface of the conical core 542. The flow guide cone 543 is inserted into the center of the inner cavity of the fixed module 51. A first groove 544 is formed on the surface of the conical core 542 away from the flow guide cone 543. A second groove 545 is formed on the inner wall of the gating sleeve 541 near the first groove 544. The positions of the first groove 544 and the second groove 545 correspond to each other, and the conical core 542 is installed inside the gating sleeve 541. At the center, the first groove 544 and the second groove 545 form a closed grouting channel, and multiple grouting channels are evenly distributed. The grout enters from the feed port at the end of the sprue sleeve 541 and is injected through the evenly distributed grouting channels. Through the guidance of the flow guide cone 543, the grout flows smoothly into the cavity composed of the fixed module 51 and the moving module 52. Compared with the single sprue channel of the prior art, it can not only make the grouting uniform, but also increase the flow speed of the grout by using evenly distributed small-diameter grouting channels. It uses a small amount of glue and a high injection speed, thereby avoiding the molten glue from a single feed port impacting one side of the sleeve and flowing off the wall. It is less likely to cause local shear overheating, making the injection molding safe and reliable.
[0027] The axis at the center of the conical core 542 coincides with the axis of the sprue sleeve 541, and the axis at the center of the drain cone 543 coincides with the axis at the center of the conical core 542.
[0028] Both the first groove 544 and the second groove 545 are arc-shaped, and the discharge port of the first groove 544 penetrates the flange on the surface of the conical core 542.
[0029] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 1 to 7 As shown: The injection molding mechanism 3 includes a strip guide rail 31, an injection molding host 32, and a cylinder 33. The strip guide rail 31 is fixedly installed at the top edge of the machine body 1. The injection molding host 32 is slidably installed on the top of the strip guide rail 31. The cylinder 33 is fixedly installed on the top of the machine body 1 and near the strip guide rail 31. The telescopic rod of the cylinder 33 is fixedly installed to the bottom of the surface of the injection molding host 32. An injection cylinder 34 is installed on the surface of the injection molding host 32 and near the sprue sleeve 541. A heat insulation cover 35 is fixedly connected to the middle of the surface of the injection cylinder 34. The top of the inner cavity of the heat insulation cover 35 and A first heater 36 and a second heater 37 are fixedly installed at the bottom. A first heating ring 38 and a second heating ring 39 are installed on the surface of the injection molding cylinder 34. A suction fan 310 is installed on the side of the surface of the insulation cover 35. The material storage mechanism 4 is installed between the top of the injection molding host 32 and the suction fan 310. The air inlet of the suction fan 310 is connected to the insulation cover 35. The cylinder 33 is activated to work. By contracting the telescopic end of the cylinder 33, a pulling force can be applied to the injection molding host 32. Under the guidance of the strip guide rail 31, the injection molding host 32 is pulled... The injection barrel 34 moves closer to the sprue bushing 541, and the sprue bushing 541 and the injection barrel 34 are installed at the same height, so that the end of the injection barrel 34 is inserted into the inlet of the sprue bushing 541, forming a fit. When the recycled granular raw material enters the injection molding machine 32, the recycled granular raw material can be melted, and the molten material enters the injection barrel 34. At the same time, the first heater 36 and the second heater 37 are turned on. The first heater 36 heats the first heating coil 38, and the second heater 37... The second heater 37 heats the second heating coil 39, which in turn heats the first heating coil 38 and the second heating coil 39, reducing the impact of external low temperature on the injection cylinder 34 and preventing localized low temperatures of the slurry on the inner wall of the injection cylinder 34. At the same time, under the principle of heat transfer, the air temperature inside the insulation cover 35 is increased, which can keep the injection cylinder 34 warm and reduce heat loss. The injection molding machine 32 provides pressure to the injection cylinder 34, causing the slurry in the injection cylinder 34 to be injected into the sprue sleeve 541 for injection molding.
[0030] Two horizontally mounted strip guide rails 31 are installed symmetrically along the central axis of the injection molding host 32. Two horizontally mounted cylinders 33 are installed symmetrically along the axis of the injection molding barrel 34. The first heating coil 38 can be controlled independently by the first heater 36, and the second heating coil 39 can be controlled independently by the second heater 37. By using the staggered arrangement of the first heating coil 38 and the second heating coil 39, the temperature provided by the injection molding barrel 34 can be controlled by fully opening the first heating coil 38 and the second heating coil 39, or by opening the first heating coil 38 or the second heating coil 39 individually, thus adapting to the appropriate temperature of different materials inside the injection molding barrel 34.
[0031] The first heating coil 38 is electrically connected to the first heater 36, and the second heating coil 39 is electrically connected to the second heater 37. The first heating coil 38 is evenly distributed on the surface of the injection molding cylinder 34, and the second heating coil 39 is evenly distributed on the surface of the injection molding cylinder 34. The first heating coil 38 and the second heating coil 39 are arranged alternately.
[0032] The third embodiment is based on the first and second embodiments; please refer to [link / reference]. Figures 1 to 9 As shown: The material storage mechanism 4 includes a material storage bin 41. The bottom of the material storage bin 41 is installed at the middle of the top of the injection molding machine 32. A feeding conveying pipe 42 is installed on the top of the material storage bin 41. A cylinder 43 is fixedly installed on the surface of the material storage bin 41. An air pipe 44 is wound around the middle of the surface of the material storage bin 41. The air inlet end of the air pipe 44 penetrates the inner wall of the cylinder 43 and extends to its outside. A right-angle pipe 45 is installed between the air inlet end of the air pipe 44 and the air outlet of the suction fan 310. When the suction fan 310 is turned on, the hot air inside the heat insulation cover 35 is sucked out using the suction force of the suction fan 310. The right-angle pipe 45 is connected to the air outlet of the suction fan 310, so that the hot air discharged by the suction fan 310 enters the right-angle pipe. Inside the 45, and through the connection between the right-angled pipe 45 and the air pipe 44, hot air can enter the interior of the air pipe 44. Combined with the fact that the air pipe 44 is wrapped around the surface of the storage bin 41 and is spiral-shaped, the contact area between the air pipe 44 and the storage bin 41 can be increased, thereby improving the heat transfer efficiency and causing the temperature inside the storage bin 41 to rise rapidly. This results in the temperature of the particles inside the storage bin 41 increasing under the principle of heat transfer, reducing the temperature difference when the injection molding machine 32 melts the granular material. The granular raw material is also transported into the storage bin 41 through the feed conveying pipe 42, and the granular raw material in the storage bin 41 will enter the interior of the injection molding machine 32, which helps the injection molding machine 32 to melt the granular material.
[0033] The bottom end of the right-angled pipe 45 is connected to the air outlet of the suction fan 310, and the top end of the right-angled pipe 45 is connected to the air inlet at the top of the air pipe 44 via a connector.
[0034] The air pipe 44 is spiral-shaped, and the spiral curved surface of the inner side of the air pipe 44 fits against the outer circular surface of the storage bin 41. The exhaust port at the bottom of the air pipe 44 penetrates the inner wall of the cylinder 43 and extends to its outside.
[0035] In use, the operator activates hydraulic cylinder 2. By extending the telescopic end of hydraulic cylinder 2, a pushing force can be applied to the moving module 52. Under the guidance of guide column 53, the moving module 52 moves closer to the fixed module 51. The mold is closed after the moving module 52 and the fixed module 51 are matched. The operation of hydraulic cylinder 2 is then paused. By keeping the telescopic end of hydraulic cylinder 2 extended, the fixed module 51 and the moving module 52 are closed and pressure is maintained. At this time, the operator starts the cylinder 33 to work. By contracting the telescopic end of the cylinder 33, a pulling force can be applied to the injection molding host 32. Under the guidance of the strip guide rail 31, the injection molding host 32 drives the injection barrel 34 to move closer to the sprue sleeve 541. By installing the sprue sleeve 541 and the injection barrel 34 at the same height, the end of the injection barrel 34 is inserted into the inlet on the surface of the sprue sleeve 541, forming a fit. Meanwhile, the first heater 36 can independently control the first heating coil 38, and the second heater 37 can independently control the second heating coil 39. By using the staggered arrangement of the first heating coil 38 and the second heating coil 39, the temperature provided by the injection barrel 34 can be controlled by fully opening the first heating coil 38 and the second heating coil 39, or by opening the first heating coil 38 or the second heating coil 39 individually. This can adapt to the suitable temperature of different materials in the injection barrel 34 and preheat the injection barrel 34. The staff then turns on the suction fan 310 to draw out the hot air from the insulation cover 35. A right-angled pipe 45 connects to the air outlet of the suction fan 310, allowing the hot air to enter the pipe. This pipe connects to an air pipe 44, which is spirally wrapped around the surface of the storage bin 41, increasing the contact area between them and improving heat transfer efficiency. This causes the temperature inside the storage bin 41 to rise rapidly. Granular raw materials are then fed into the storage bin 41 through the feed pipe 42, further increasing the temperature of the granules within the storage bin 41 due to heat transfer. These granules then enter the injection molding machine 32, reducing the temperature difference during subsequent melting and facilitating the process. Furthermore, when the recycled granular raw material enters the injection molding machine 32, it can be melted, and the molten material enters the injection barrel 34. The first heater 36 and the second heater 37 are activated. The first heater 36 heats the first heating coil 38, and the second heater 37 heats the second heating coil 39. The first heating coil 38 and the second heating coil 39 heat the injection barrel 34, reducing the impact of the injection barrel 34 on the low external temperature and preventing the local low temperature of the slurry at the inner wall of the injection barrel 34. At the same time, under the principle of heat transfer, the air temperature inside the heat insulation cover 35 is increased, which can keep the injection barrel 34 warm and reduce heat loss. The injection molding machine 32 provides pressure to the injection barrel 34, so that the slurry in the injection barrel 34 is injected into the sprue sleeve 541 for injection molding. Simultaneously, the positions of the first groove 544 and the second groove 545 correspond, and the conical core 542 is installed at the center inside the sprue sleeve 541, so that the first groove 544 and the second groove 545 form a closed grouting channel. Multiple grouting channels are evenly distributed. The grout enters from the feed port at the end of the sprue sleeve 541 and is injected through the evenly distributed grouting channels. Through the guidance of the guide cone 543, the grout flows smoothly into the cavity composed of the fixed module 51 and the moving module 52. Compared with the single sprue channel of the prior art, it can not only make the grouting uniform, but also increase the flow speed of the grout by using evenly distributed small-diameter grouting channels. It uses a small amount of glue and a high injection speed, thereby avoiding the single feed port melt from impacting one side of the sleeve and flowing along the wall. It is less likely to cause local shear overheating, making the injection molding safe and reliable. After the fixed module 51 and the moving module 52 are closed, the slurry is injected into the cavities inside the fixed module 51 and the moving module 52 to injection mold the electronic connector. Pressure holding and cooling are then performed. When the injection molding of the electronic connector is completed and the fixed module 51 and the moving module 52 need to be opened, the hydraulic cylinder 2 is activated again. The contraction of the telescopic end of the hydraulic cylinder 2 applies a pulling force to the moving module 52, and under the guidance of the guide post 53, the moving module 52 moves away from the fixed module 51. When the moving module 52 moves, the mold can be opened, making the moving module 52 move smoothly and the mold opening and closing is smooth, and it is not easy to jam. It is safe and reliable. As the moving module 52 continues to move away from the fixed module 51, the end of the ejector 55 contacts the body of the hydraulic cylinder 2. Combined with the action and reaction forces, the end of the ejector 55 is subjected to the reaction force of the body of the hydraulic cylinder 2. The ejector 55 moves towards the inside of the moving module 52, and the electronic connector in the cavity in the middle of the moving module 52 can be ejected and unloaded.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A scrap recycling electronic connector injection molding processing apparatus characterized by, Include: Machine body (1), and the hydraulic cylinder (2) fixedly installed at the top side of the machine body (1), the top of the machine body (1) and away from the hydraulic cylinder (2) end is installed injection mechanism (3), the top of the injection mechanism (3) is installed storage mechanism (4); The forming mold (5) includes a fixed mold (51) and a movable mold (52), the fixed mold (51) is fixedly installed at the top of the machine body (1), the movable mold (52) is fixedly installed at the telescopic end of the hydraulic cylinder (2), the surface of the fixed mold (51) and the shell surface outside the hydraulic cylinder (2) are fixedly installed with guide column (53), the movable mold (52) and the outer circular surface of the guide column (53) are slidingly installed, the middle of the surface of the fixed mold (51) is installed with sprue assembly (54), the surface of the movable mold (52) and the position close to the guide column (53) are installed with ejector (55); The sprue assembly (54) includes a sprue sleeve (541) and a tapered core (542), the sprue sleeve (541) is detachably fixedly installed on the surface of the fixed mold (51), the tapered core (542) is detachably fixedly installed in the middle of the inside of the sprue sleeve (541), the center of the surface of the tapered core (542) is fixedly connected with the drainage cone (543), the drainage cone (543) is inserted into the center of the inner cavity of the fixed mold (51), the surface of the tapered core (542) and the side away from the drainage cone (543) is provided with a first groove (544), the inner wall of the sprue sleeve (541) and the position close to the first groove (544) is provided with a second groove (545).
2. The electronic connector injection molding processing equipment for waste recycling according to claim 1, characterized in that: The fixed mold (51) and the movable mold (52) are installed at the same height, the guide column (53) is horizontally installed, the guide column (53) is four, and the four guide columns (53) are evenly distributed between the fixed mold (51) and the shell outside the hydraulic cylinder (2).
3. The electronic connector injection molding processing equipment for waste recycling according to claim 1, characterized in that: The axis of the center of the tapered core (542) coincides with the axis of the sprue sleeve (541), the axis of the center of the drainage cone (543) coincides with the axis of the center of the tapered core (542).
4. The electronic connector injection molding processing apparatus for recycling waste materials of claim 1, wherein: The first groove (544) and the second groove (545) are both arc-shaped, the discharge port of the first groove (544) penetrates the flange plate of the surface of the tapered core (542).
5. The electronic connector injection molding processing apparatus for recycling waste materials of claim 1, wherein: The injection mechanism (3) comprises a strip-shaped guide rail (31), an injection host (32) and a cylinder (33), the strip-shaped guide rail (31) is fixedly installed at the edge of the top of the machine body (1), the injection host (32) is slidingly installed at the top of the strip-shaped guide rail (31), the cylinder (33) is fixedly installed at the top of the machine body (1) and close to the position of the strip-shaped guide rail (31), the telescopic rod of the cylinder (33) is fixedly installed with the bottom surface of the injection host (32), the surface of the injection host (32) and close to the position of the sprue bushing (541) is provided with an injection cylinder (34), the middle of the surface of the injection cylinder (34) is fixedly connected with a heat preservation cover (35), the top and bottom of the inner cavity of the heat preservation cover (35) are sequentially fixedly installed with a first heater (36) and a second heater (37), the surface of the injection cylinder (34) is sequentially provided with a first heat supply ring (38) and a second heat supply ring (39), the edge side of the surface of the heat preservation cover (35) is provided with a suction fan (310), the storage mechanism (4) is installed between the top of the injection host (32) and the suction fan (310), and the air inlet of the suction fan (310) is in communication with the heat preservation cover (35).
6. The electronic connector injection molding processing apparatus for scrap recycling according to claim 5, characterized by: The strip-shaped guide rail (31) is horizontally installed, the strip-shaped guide rail (31) is two, and the two strip-shaped guide rails (31) are symmetrically installed along the central axis of the middle of the injection host (32), the cylinder (33) is horizontally installed, the cylinder (33) is two, and the two cylinders (33) are symmetrically installed along the axis of the injection cylinder (34).
7. The electronic connector injection molding processing apparatus for scrap recycling according to claim 5, characterized by: The first heat supply ring (38) and the first heater (36) are electrically connected, the second heat supply ring (39) and the second heater (37) are electrically connected, the first heat supply ring (38) is uniformly distributed on the surface of the injection cylinder (34), the second heat supply ring (39) is uniformly distributed on the surface of the injection cylinder (34), and the first heat supply ring (38) and the second heat supply ring (39) are staggered.
8. The electronic connector injection molding processing apparatus for scrap recycling according to claim 5, characterized by: The storage mechanism (4) comprises a storage bin (41), the bottom of the storage bin (41) is installed at the middle of the top of the injection host (32), the top of the storage bin (41) is provided with a feeding conveying pipe (42), the surface of the storage bin (41) is fixedly installed with a cylinder (43), the middle of the surface of the storage bin (41) is wound with an air pipe (44), the air inlet end of the top of the air pipe (44) penetrates through the inner wall of the cylinder (43) and extends between the outside thereof, and the air inlet end of the top of the air pipe (44) and the air outlet of the suction fan (310) are provided with a right-angle pipe (45).
9. The electronic connector injection molding processing apparatus for scrap recycling according to claim 8, characterized by: The bottom end of the right-angle pipe (45) is in communication with the air outlet of the suction fan (310), and the top end of the right-angle pipe (45) is in communication with the air inlet end of the top of the air pipe (44) through a connector.
10. The electronic connector injection molding processing apparatus for scrap recycling according to claim 8, characterized by: The air pipe (44) is spiral, the spiral curved surface of the inner side of the air pipe (44) is attached to the outer cylindrical surface of the storage bin (41), and the air outlet of the bottom end of the air pipe (44) penetrates through the inner wall of the cylinder (43) and extends between the outside thereof.
Citation Information
Patent Citations
Precise injection molding machining device of plastic
CN111421771A