Anti-scratch display panel injection molding device

Abstract

The invention discloses an anti-scratch display panel injection molding device, and relates to the technical field of injection molding, the anti-scratch display panel injection molding device comprises an injection molding assembly, and the top of the injection molding assembly is provided with a scraping assembly and a protection assembly. During use, when the power transmission mechanism drives the plunger body to move reversely and reset, the plunger body can penetrate through the conical scraping plate, and at the moment, the conical scraping plate pushes down small-particle plastic attached to the outer surface of the plunger body, so that the situation that the small-particle plastic continues to move along with the plunger body and enters the space between the plunger body and an external material barrel is avoided, and the service life of the plunger body is prolonged. And therefore, the effect of scraping small-particle plastic is achieved, and the service life is prolonged. The scraped small-particle plastic falls into the charging barrel body, and under interception of the microporous filter screen, the small-particle plastic is prevented from falling into the protective barrel and the liquid discharge pipe to cause blockage.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, and in particular to an injection molding device for an anti-scratch display panel. Background Art

[0002] Injection molding is a common manufacturing process that involves injecting molten plastic material into a mold and cooling it to form the desired plastic part. This process is widely used in the production of various plastic products. Scratch-resistant display panels are a specially treated display device surface that has high wear resistance and can effectively resist scratches and other physical damage. This type of panel is generally used in electronic products such as mobile phones, tablets, and televisions to enhance the durability and aesthetics of the display device. During the production process of scratch-resistant display panels, the plastic melt is quickly injected into the pre-designed mold cavity by applying pressure through the screw or plunger of the injection molding machine, and then waits for cooling to form.

[0003] In the prior art, during the use of the anti-scratch display panel injection molding device, plastic particles are transported into the barrel through the storage bin, and the plastic particles are pushed to the heating zone to form a plastic melt through the reciprocating movement of the plunger, and then injected into the mold. The size and shape of the plastic particles are inconsistent. When the plunger is reset, the smaller plastic particles attached to the outer surface of the plunger will move with the plunger, thereby entering between the plunger and the barrel. The plastic particles stuck in the gap will act like abrasives. With the reciprocating movement of the plunger, the wear of the plunger and the barrel will be aggravated, reducing the service life. In the long run, it is easy to cause the dimensional accuracy of the plunger and the barrel to decrease, affecting the coordination between them, further increasing the possibility of plastic particles entering, and forming a vicious circle.

[0004] Therefore, we propose an anti-scratch display panel injection molding device to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a scratch-resistant display panel injection molding device to solve the problem that during the use of the scratch-resistant display panel injection molding device proposed in the above background technology, some smaller plastic particles are easy to enter between the plunger and the barrel, aggravating the wear of the plunger and the barrel, reducing the service life, and also causing the dimensional accuracy of the plunger and the barrel to decrease, affecting the fit, further increasing the possibility of plastic particles entering, forming a vicious circle.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an injection molding device for a scratch-resistant display panel, comprising an injection molding component, a scraper component and a protective component are arranged on the top of the injection molding component; The injection molding assembly comprises a frame, a mounting seat is fixedly mounted on the top of the frame, a barrel body is fixedly mounted inside the mounting seat, a power transmission mechanism is arranged at one side of the top of the frame, and a plunger body is arranged at the output end of the power transmission mechanism; The scraper assembly includes an external barrel, one end of the external barrel is fixedly connected to a fixing ring, one end of the fixing ring is fixedly connected to a microporous filter, a sealing member is arranged on the inner wall of the external barrel, a conical scraper plate is fixedly installed on the inner wall of the fixing ring near the microporous filter, a protective cylinder is fixedly installed on the outer surface of the barrel body and the outer surface of the external barrel, a drain pipe is fixedly connected to the outer surface of the protective cylinder, and a protective plate is fixedly connected to the inner wall of the conical scraper plate.

[0007] Preferably, an air outlet pipe is fixedly connected to the outer surface of the conical scraper plate, a plurality of air inlet holes are opened on the inner wall of the conical scraper plate, an insulation cylinder is fixedly installed on the outer surface of the drain pipe, and spiral blades are fixedly installed on the inner wall of the insulation cylinder.

[0008] Preferably, the protection component includes two mounting frames, fans are arranged inside the two mounting frames, the output end of the fan is connected to an air outlet pipe via a flange, one end of the air outlet pipe is fixedly connected to a connecting pipe, one end of the connecting pipe is fixedly connected to an annular pipe, and the outer surface of the annular pipe is fixedly connected to a plurality of high-pressure nozzles.

[0009] Preferably, a waste heat recovery cylinder is fixedly installed on the outer surface of the barrel body, an air intake pipe is fixedly connected to the outer surface of the waste heat recovery cylinder, an exhaust pipe is fixedly connected to the outer surface of the waste heat recovery cylinder away from the air intake pipe, and one end of the exhaust pipe is connected to a flow pipe through a flange.

[0010] Preferably, one end of the circulation pipe is connected to the input end of the fan through a flange, a recovery bucket is arranged on the bottom surface of the interior of the frame, the bottoms of the two mounting frames are mounted on the rear surface of the frame through auxiliary plates, one end of the connecting pipe is fixedly passed through the external barrel to the inside of the fixing ring, the outer surface of the annular pipe is fixedly mounted on one end of the external barrel away from the high-pressure nozzle, and the outer surface of the barrel body is movably embedded in the inside of the annular pipe.

[0011] Preferably, the outer surface of one side of the microporous filter is fixedly connected to one end of the barrel body, the outer surface of the barrel body is movably embedded in the interior of the seal, the protective plate and the conical scraper plate, the bottom end of the air outlet pipe is fixedly passed through the fixing ring and the protective cylinder to the outer surface, the bottom end of the air outlet pipe is fixedly connected to the top end of the insulation cylinder, the bottom ends of the insulation cylinder and the drain pipe both extend to the interior of the frame, and the outer surface of the drain pipe is fixedly installed inside the spiral blade.

[0012] Preferably, a nozzle is arranged at the other end of the barrel body, a heating element is arranged on the outer surface of the barrel body, a static mold is arranged on the outer surface of the nozzle, a mold clamping power mechanism is arranged at the other side of the top of the frame, a dynamic mold is fixedly installed at the output end of the mold clamping power mechanism, and a PLC controller is arranged at the top of the frame near the power transmission mechanism.

[0013] Preferably, a feeder is fixedly mounted on the top of the mounting seat, a feed pipe is fixedly connected to the bottom end of the feeder, the bottom end of the feed pipe is fixedly connected to the outer surface of the barrel body, one end of the plunger body is movably embedded in the interior of the barrel body, and the heating element is located inside the waste heat recovery barrel.

[0014] A scratch-resistant display panel injection molding system, comprising: a central control unit, a feeding unit, a plasticizing unit, an injection unit, a mold clamping unit, a cooling unit and an ejection unit; The central control unit is mainly responsible for coordinating the work of each unit module. The feeding unit is used to transport the plastic granule raw material to the plasticizing unit. The plasticizing unit mainly heats and plasticizes the transported plastic granule raw material. The injection unit injects the plasticized plastic melt into the mold cavity. The clamping unit is used to open and close the mold and keep the mold in a closed state during the injection process. The cooling unit is used to accelerate the cooling and solidification of the plastic. The ejection unit is used to eject the molded product from the mold cavity.

[0015] Preferably, the plasticizing unit includes a heating module and a temperature control module; The heating module mainly heats the plastic raw material to gradually melt it and achieve a uniform viscous flow state, and the temperature control module is used to accurately control the temperature of the heating module.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is used, when the power transmission mechanism drives the plunger body to move in the opposite direction and reset, the plunger body will pass through the conical scraper plate. At this time, the conical scraper plate will push down the small plastic particles attached to the outer surface of the plunger body, so as to prevent the small plastic particles from continuing to move with the plunger body and entering between the plunger body and the external barrel, causing wear of the plunger body and the external barrel, thereby achieving the effect of scraping off the small plastic particles, which is beneficial to improving the service life. The scraped small plastic particles fall into the barrel body, and are intercepted by the microporous filter screen to prevent the small plastic particles from falling into the protective tube and the drain pipe, causing blockage. When the plunger body pushes the material again, the scraped small plastic particles can be pushed together to the heating element for heating, thereby reducing waste.

[0017] 2. When the present invention is used, the fan is started to allow external air to enter the waste heat recovery cylinder, absorb the excess heat generated by the heating element when it is working, and turn it into hot air to reduce the waste of heat resources. Then, the air enters the exhaust pipe, the outlet pipe, the connecting pipe and the annular pipe in turn, and a plurality of high-pressure nozzles are used to spray hot air flows to prevent the plastic melt from solidifying and affecting the aggregation and dripping of the plastic melt. The plastic melt attached to the outer surface of the plunger body is gathered together, and under the action of gravity, it drips into the fixing ring, flows into the protective cylinder through the flow hole, and is discharged into the recovery barrel by the drain pipe for recovery, so as to prevent the attached plastic melt from flowing along the outer surface of the plunger body to the seal and causing adverse effects on the seal.

[0018] 3. When the present invention is used, the hot air flow is discharged into the insulation tube through the air inlet and the air outlet. The protective plate protects the air inlet to prevent the plastic melt from falling into the air inlet and causing the air inlet to be blocked. The hot air entering the insulation tube flows along the path of the spiral blades, which increases the contact time and contact area between the hot air and the discharge pipe, so that the hot air can better transfer heat to the discharge pipe, preventing the plastic melt from solidifying in the discharge pipe and affecting the subsequent discharge of the plastic melt. The plastic melt is recycled through the recycling barrel, which improves the efficiency of resource reuse and saves costs.

[0019] 4. When the present invention is used, the central control unit controls the feed unit to start and deliver the plastic raw material to the plasticizing unit. The heating module heats the plastic raw material to melt it, and the temperature control module monitors it in real time to prevent temperature abnormalities. The injection unit injects the plasticized plastic melt into the mold cavity in the clamping unit at a certain pressure and speed. The cooling unit works to gradually cool and solidify the plastic melt in the mold cavity to form the shape of the scratch-resistant display panel. Finally, the clamping unit performs a mold opening operation, and the ejection unit ejects the product from the mold cavity to complete the injection molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A first-angle stereoscopic view of an anti-scratch display panel injection molding device according to the present invention; Figure 2 A second angle stereogram of an anti-scratch display panel injection molding device according to the present invention; Figure 3 It is a schematic cross-sectional view of the structure of an injection molding component in an injection molding device for an anti-scratch display panel of the present invention; Figure 4 This is a structural unfolded stereoscopic diagram of a protective component in an anti-scratch display panel injection molding device of the present invention; Figure 5 It is a structural sectional and expanded stereoscopic diagram of a barrel body in an anti-scratch display panel injection molding device of the present invention; Figure 6This is a structural unfolded stereogram of a connecting tube in an anti-scratch display panel injection molding device of the present invention; Figure 7 It is a schematic cross-sectional view of the structure of a scraper assembly in an anti-scratch display panel injection molding device of the present invention; Figure 8 It is a schematic cross-sectional view of the structure of a fixing ring in an injection molding device for a scratch-resistant display panel according to the present invention; Fig. 9 It is a schematic cross-sectional view of the structure of a protective tube in an injection molding device for a scratch-resistant display panel according to the present invention; Fig.10 It is a structural unfolded stereoscopic diagram of a heat preservation cylinder in an anti-scratch display panel injection molding device of the present invention; Fig.11 This is a system diagram of an anti-scratch display panel injection molding device of the present invention; Fig.12 This is a system diagram of a plasticizing unit in an anti-scratch display panel injection molding system of the present invention.

[0021] In the figure: 1. Injection molding assembly; 101. Frame; 102. Mounting seat; 103. Barrel body; 104. Power transmission mechanism; 105. Plunger body; 106. Nozzle; 107. Heating element; 108. Static mold; 109. Clamping power mechanism; 110. Moving mold; 111. PLC controller; 112. Feeder; 113. Feeding pipe; 2. Scraping assembly; 201. External barrel; 202. Fixing ring; 203. Microporous filter; 204. Seal; 205. Conical scraper; 206. Protective cylinder; 207. Drain pipe; 208. Protective plate; 20 9. Exhaust pipe; 210. Air inlet; 211. Insulation tube; 212. Spiral blade; 3. Protection assembly; 301. Mounting frame; 302. Fan; 303. Exhaust pipe; 304. Connecting pipe; 305. Ring pipe; 306. High-pressure nozzle; 307. Waste heat recovery tube; 308. Inlet pipe; 309. Exhaust pipe; 310. Circulation pipe; 311. Recovery barrel; 4. Central control unit; 5. Feeding unit; 6. Plasticizing unit; 61. Heating module; 62. Temperature control module; 7. Injection unit; 8. Clamping unit; 9. Cooling unit; 10. Ejection unit. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figure 1-Figure 8 As shown, the present invention provides a technical solution: an anti-scratch display panel injection molding device, comprising an injection molding component 1, a scraper component 2 and a protective component 3 are arranged on the top of the injection molding component 1; the injection molding component 1 comprises a frame 101, a mounting seat 102 is fixedly installed on the top of the frame 101, a barrel body 103 is fixedly installed inside the mounting seat 102, a power transmission mechanism 104 is arranged at one side of the top of the frame 101, and a plunger body 105 is arranged at the output end of the power transmission mechanism 104; the scraper component 2 comprises an external barrel 201, one end of the external barrel 201 is fixedly connected to a fixing ring 202, one end of the fixing ring 202 is fixedly connected to a microporous filter 203, a sealing member 204 is arranged on the inner wall of the external barrel 201, a conical scraper plate 205 is fixedly installed on the inner wall of the fixing ring 202 near the microporous filter 203, and the outer surface of the barrel body 103 and the outer surface of the external barrel 201 are fixedly installed with a protective A protective tube 206 is provided, and a drain pipe 207 is fixedly connected to the outer surface of the protective tube 206. A protective plate 208 is fixedly connected to the inner wall of the conical scraper plate 205. A nozzle 106 is arranged at the other end of the barrel body 103. A heating element 107 is arranged on the outer surface of the barrel body 103. A static mold 108 is arranged on the outer surface of the nozzle 106. A mold clamping power mechanism 109 is arranged at the other side of the top of the frame 101. A movable mold 110 is fixedly installed at the output end of the mold clamping power mechanism 109. A PLC controller 111 is arranged at the top of the frame 101 near the power transmission mechanism 104. A feeder 112 is fixedly installed on the top of the mounting seat 102. A feed pipe 113 is fixedly connected to the bottom end of the feeder 112. The bottom end of the feed pipe 113 is fixedly connected to the outer surface of the barrel body 103. One end of the plunger body 105 is movably embedded in the interior of the barrel body 103. The heating element 107 is located inside the waste heat recovery cylinder 307.

[0024] In this embodiment, when in use, the power transmission mechanism 104, the heating element 107, the mold clamping power mechanism 109, the feeder 112, the fan 302 and the PLC controller 111 are electrically connected. The plastic granule raw material is transported to the inside of the barrel body 103 through the feeder 112 and the feed pipe 113, and the power transmission mechanism 104 is started to push the plunger body 105 to move in the barrel body 103, and the plastic granules are pushed to the heating element 107 for heating, so that the plastic granules gradually melt and become a plastic melt. The mold clamping power mechanism 109 is started in advance to push the movable mold 110 to move and clamp the mold with the static mold 108. The melt is injected into the mold cavity between the static mold 108 and the movable mold 110 through the plunger body 105 and the nozzle 106 for solidification molding. When the power transmission mechanism 104 drives the plunger body 105 to move in the reverse direction and reset, one end of the plunger body 105 moves from the bottom of the feed pipe 113 into the conical scraper plate 205. The inner wall of the narrower part of the left side of the conical scraper plate 205 does not contact the outer surface of the plunger body 105, and a very small gap is maintained. When the plunger body 105 passes through the conical scraper plate 205, the conical scraper plate 205 can push down the small particles of plastic attached to the outer surface of the plunger body 105, so as to prevent the small particles of plastic from continuing to move with the plunger body 105 and entering the gap between the plunger body 105 and the external barrel 20 1, causing wear on the plunger body 105 and the external barrel 201. Under the action of the scraper assembly 2, the small plastic particles are scraped off, which is beneficial to improve the service life, avoid unnecessary wear on the plunger and the barrel, and affect the dimensional accuracy. It solves the problem that during the use of the anti-scratch display panel injection molding device, some smaller plastic particles are easy to enter between the plunger and the barrel, aggravating the wear of the plunger and the barrel, reducing the service life, and also causing the dimensional accuracy of the plunger and the barrel to decrease, affecting the matching, further increasing the possibility of plastic particles entering, and forming a vicious circle. The scraped small plastic particles fall into the barrel body 103. Under the interception of the microporous filter 203, the small plastic particles can be prevented from falling into the protective cylinder 206 and the drain pipe 207, causing blockage and affecting the subsequent discharge of the plastic melt. When the plunger body 105 pushes the material again, the scraped small plastic particles can be pushed together to the heating element 107 for heating to reduce waste.

[0025] Embodiment 2: Figure 1-Figure 10As shown, the outer surface of the barrel body 103 and the outer surface of the external barrel 201 are fixedly installed with a protective cylinder 206, the outer surface of the protective cylinder 206 is fixedly connected with a drain pipe 207, the inner wall of the conical scraper plate 205 is fixedly connected with a protective plate 208, the outer surface of the conical scraper plate 205 is fixedly connected with an air outlet pipe 209, the inner wall of the conical scraper plate 205 is provided with a plurality of air inlet holes 210, the outer surface of the drain pipe 207 is fixedly installed with a heat preservation cylinder 211, the inner wall of the heat preservation cylinder 211 is fixedly installed with a spiral blade 212, and the protective assembly 3 includes two mounting frames 30 1. A fan 302 is arranged inside the two mounting frames 301. The output end of the fan 302 is connected to an air outlet pipe 303 through a flange. One end of the air outlet pipe 303 is fixedly connected to a connecting pipe 304. One end of the connecting pipe 304 is fixedly connected to an annular pipe 305. The outer surface of the annular pipe 305 is fixedly connected to a plurality of high-pressure nozzles 306. A waste heat recovery cylinder 307 is fixedly installed on the outer surface of the barrel body 103. The outer surface of the waste heat recovery cylinder 307 is fixedly connected to an air inlet pipe 308. The outer surface of the waste heat recovery cylinder 307 away from the air inlet pipe 308 is fixedly connected to an exhaust pipe 306. The exhaust pipe 309 is connected to the flow pipe 310 at one end through a flange, and one end of the flow pipe 310 is connected to the input end of the fan 302 through a flange. A recovery bucket 311 is arranged on the bottom surface of the frame 101. The bottoms of the two mounting frames 301 are mounted on the rear surface of the frame 101 through auxiliary plates. One end of the connecting pipe 304 is fixedly passed through the external barrel 201 to the inside of the fixing ring 202. The outer surface of the annular pipe 305 is fixedly mounted on one end of the external barrel 201 away from the high-pressure nozzle 306. The outer surface of the barrel body 103 is movably embedded in the annular pipe 305. Inside the tube 305, the outer surface of one side of the microporous filter 203 is fixedly connected to one end of the barrel body 103, and the outer surface of the barrel body 103 is movably embedded in the seal 204, the protective plate 208 and the conical scraper plate 205. The bottom end of the air outlet pipe 209 is fixedly passed through the fixing ring 202 and the protective tube 206 to the outer surface, and the bottom end of the air outlet pipe 209 is fixedly connected to the top end of the insulation tube 211. The bottom ends of the insulation tube 211 and the drain pipe 207 both extend to the inside of the frame 101, and the outer surface of the drain pipe 207 is fixedly installed inside the spiral blade 212.

[0026] In this embodiment, when in use, the outer surface of the fixing ring 202 is provided with a plurality of flow holes above the discharge pipe 207, such as Figure 8As shown, it is convenient for the subsequent plastic melt in the fixing ring 202 to flow into the protective cylinder 206 through the flow hole. Start the fan 302, and pump the external air into the waste heat recovery cylinder 307 through the air inlet pipe 308. When the heating element 107 is working, heat will be generated. The gas in the waste heat recovery cylinder 307 passes through the outer surface of the heating element 107, absorbs heat, and becomes hot air. Then, the hot air is discharged into the outlet pipe 303 through the exhaust pipe 309 and the fan 302, and is transported to the annular pipe 305 through the connecting pipe 304. Finally, the gas is sprayed out through multiple high-pressure nozzles 306 to form an airflow. One end of the high-pressure nozzle 306 is facing the outer surface of the plunger body 105. When the airflow is sprayed onto the outer surface of the plunger body 105, it will generate shear force and impact force on the attached plastic melt, so that the plastic melt overcomes its own viscosity and adhesion and moves. These melts gradually gather together under the push of the airflow, and under the action of gravity, they will drip downward into the fixing ring 202, and flow into the protective cylinder 206 through the flow hole, and then the flowing plastic melt is discharged to the bottom of the recovery barrel 311 for recovery by the drain pipe 207. Under the action of the protective component 3, the plastic melt attached to the outer surface of the plunger body 105 is blown off, so as to prevent the attached plastic melt from flowing along the outer surface of the plunger body 105 to the seal 204 under the reciprocating movement of the plunger body 105, thereby causing adverse effects on the seal 204. The waste heat recovery cylinder 307 is used to recover the waste heat of the heating element 107, thereby reducing the waste of heat resources, and by blowing a high-pressure hot air flow to the outer surface of the plunger body 105, the solidification phenomenon of the plastic melt can be prevented, which affects the aggregation and dripping of the plastic melt. The blown hot air flow enters the interior of the conical scraper plate 205 through the air inlet 210, and then is discharged into the insulation cylinder 211 through the air outlet pipe 209. The air inlet 210 is protected by the protective plate 208 to prevent the plastic melt from falling into the air inlet 210, causing the air inlet 210 to be blocked and affecting the exhaust effect. The hot air entering the heat preservation tube 211 flows along the path of the spiral blade 212, increasing the contact time and contact area between the hot air and the drain pipe 207, so that the hot air can better transfer heat to the drain pipe 207, increase the temperature of the drain pipe 207, and prevent the plastic melt from solidifying in the drain pipe 207, which not only cannot be smoothly discharged into the recovery barrel 311 for recycling, but also affects the subsequent discharge of the plastic melt. Recycling the plastic melt through the recovery barrel 311 improves the efficiency of resource reuse and saves costs.

[0027] Embodiment 3: Figure 11-Figure 12As shown, a scratch-resistant display panel injection molding system includes: a central control unit 4, a feeding unit 5, a plasticizing unit 6, an injection unit 7, a clamping unit 8, a cooling unit 9 and an ejection unit 10; the central control unit 4 is mainly responsible for coordinating the work of each unit module, the feeding unit 5 is used to transport the plastic granular raw material to the plasticizing unit 6, the plasticizing unit 6 mainly heats and plasticizes the transported plastic granular raw material, the injection unit 7 injects the plasticized plastic melt into the mold cavity, the clamping unit 8 is used to open and close the mold and keep the mold closed during the injection process, the cooling unit 9 is used to accelerate the cooling and solidification of the plastic, the ejection unit 10 is used to eject the molded product from the mold cavity, the plasticizing unit 6 includes a heating module 61 and a temperature control module 62; the heating module 61 mainly heats the plastic raw material to make it gradually melt and reach a uniform viscous flow state, and the temperature control module 62 is used to accurately control the temperature of the heating module 61.

[0028] In this embodiment, when in use, the central control unit 4 is the brain of the injection molding system, responsible for coordinating the work of each unit module. Through the central control unit 4, the operator can set various process parameters, such as pressure, speed, time, etc. Combined with sensors, the parameters of each link are monitored in real time, and the signal is fed back to the controller. The controller accurately controls the action of each unit according to the set parameters and feedback signals to ensure the stability of the injection molding process and the consistency of product quality. The central control unit 4 controls the feed unit 5 to start, and the feed unit 5 conveys the plastic raw material to the plasticizing unit 6. The heating module 61 in the plasticizing unit 6 heats the plastic raw material, so that the plastic raw material gradually melts and plasticizes into a uniform viscous plastic melt. At the same time, the temperature control module 62 monitors the temperature of the heating module 61 in real time, and controls the temperature to be within the set temperature range to prevent temperature abnormalities. The injection unit 7 is started under the instruction of the central control unit 4, and the plasticized plastic melt is injected into the mold cavity that has been molded in the mold clamping unit 8 at a certain pressure and speed. During the injection process, the clamping unit 8 keeps the mold in a closed state and applies sufficient clamping force through the clamping mechanism to prevent the mold from being opened by the melt pressure. At the same time, the cooling unit 9 starts to work, and the cooling medium takes away the heat of the plastic melt through the cooling channel inside the mold, so that the plastic melt gradually cools and solidifies in the mold cavity to form the shape of the scratch-resistant display panel. Finally, the clamping unit 8 performs the mold opening operation, and the ejection unit 10, under the control of the central control unit 4, ejects the product from the mold cavity, thereby completing the injection molding process.

[0029] The effect and working principle of the whole mechanism are as follows: when in use, the plastic granule raw material is conveyed to the inside of the barrel body 103 through the feeder 112 and the feed pipe 113, the power transmission mechanism 104 is started, the plunger body 105 is pushed to move, and the plastic granules are pushed to the heating element 107 for heating, so that the plastic granules are gradually melted and become plastic melt. The mold clamping power mechanism 109 is started in advance to push the movable mold 110 to move and clamp the mold with the static mold 108. The melt is injected into the mold cavity between the static mold 108 and the movable mold 110 through the plunger body 105 and the nozzle 106 for solidification molding. When the power transmission mechanism 104 drives the plunger body 105 to move in the reverse direction and reset, one end of the plunger body 105 moves from the bottom of the feed pipe 113 to the conical scraper plate 205, and the conical scraper plate 205 can push down the small particles of plastic attached to the outer surface of the plunger body 105, so as to prevent the small particles of plastic from continuing to move with the plunger body 105 and entering between the plunger body 105 and the external barrel 201, causing wear of the plunger body 105 and the external barrel 201. The fan 302 is started, and the external air is pumped into the waste heat recovery cylinder 307 through the air inlet pipe 308, absorbing the heat generated by the heating element 107 and turning into hot air, and then the hot air is discharged into the outlet pipe 303 through the exhaust pipe 309 and the fan 302, and transported to the annular pipe 305 through the connecting pipe 304, and finally the gas is ejected through multiple high-pressure nozzles 306 to form an air flow. The plastic melt attached to the outer surface of the plunger body 105 is gathered together, and under the action of gravity, it drips downward into the fixing ring 202, and flows into the protective cylinder 206 through the flow hole, and then the flowing plastic melt is discharged by the drain pipe 207 to the inside of the recovery barrel 311 at the bottom for recovery, so as to prevent the plastic melt from flowing to the seal 204 and causing adverse effects on the seal 204. The waste heat recovery cylinder 307 is used to recover the waste heat of the heating element 107 to reduce the waste of heat resources, and by blowing a high-pressure hot air flow to the outer surface of the plunger body 105, the solidification phenomenon of the plastic melt can be prevented, which affects the aggregation and dripping of the plastic melt. The blown hot air flow enters the interior of the conical scraper plate 205 through the air inlet 210, and then is discharged into the insulation cylinder 211 through the air outlet pipe 209. The air inlet 210 is protected by the protective plate 208 to prevent the plastic melt from falling into the air inlet 210, causing the air inlet 210 to be blocked and affecting the exhaust effect. The hot air entering the heat preservation cylinder 211 flows along the path of the spiral blades 212, which increases the contact time and contact area between the hot air and the discharge pipe 207, so that the hot air can better transfer heat to the discharge pipe 207, increase the temperature of the discharge pipe 207, and prevent the plastic melt from solidifying in the discharge pipe 207. The plastic melt is recycled through the recycling barrel 311, which improves the efficiency of resource recycling and saves costs.

[0030] Among them, the power transmission mechanism 104, the heating element 107, the mold clamping power mechanism 109, the PLC controller 111, the feeder 112 and the fan 302 are all existing technologies, and their components and operating principles are all public technologies, which will not be explained in detail here.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A scratch-resistant display panel injection molding device, comprising an injection molding component (1), characterized in that: A scraper component (2) and a protection component (3) are arranged on the top of the injection molding component (1); The injection molding assembly (1) comprises a frame (101), a mounting seat (102) is fixedly mounted on the top of the frame (101), a barrel body (103) is fixedly mounted inside the mounting seat (102), a power transmission mechanism (104) is arranged at one side of the top of the frame (101), and a plunger body (105) is arranged at the output end of the power transmission mechanism (104); The scraper assembly (2) comprises an external barrel (201), one end of the external barrel (201) is fixedly connected to a fixing ring (202), one end of the fixing ring (202) is fixedly connected to a microporous filter (203), a sealing member (204) is provided on the inner wall of the external barrel (201), a conical scraper plate (205) is fixedly mounted on the inner wall of the fixing ring (202) near the microporous filter (203), a protective cylinder (206) is fixedly mounted on the outer surface of the barrel body (103) and the outer surface of the external barrel (201), a liquid discharge pipe (207) is fixedly mounted on the outer surface of the protective cylinder (206), and a protective plate (208) is fixedly mounted on the inner wall of the conical scraper plate (205).

2. The anti-scratch display panel injection molding device according to claim 1, characterized in that: An air outlet pipe (209) is fixedly connected to the outer surface of the conical scraper plate (205), a plurality of air inlet holes (210) are provided on the inner wall of the conical scraper plate (205), a heat preservation tube (211) is fixedly mounted on the outer surface of the liquid discharge tube (207), and a spiral blade (212) is fixedly mounted on the inner wall of the heat preservation tube (211).

3. The anti-scratch display panel injection molding device according to claim 2, characterized in that: The protection component (3) comprises two mounting frames (301), fans (302) are arranged inside the two mounting frames (301), the output end of the fan (302) is connected to an air outlet pipe (303) via a flange, one end of the air outlet pipe (303) is fixedly connected to a connecting pipe (304), one end of the connecting pipe (304) is fixedly connected to an annular pipe (305), and the outer surface of the annular pipe (305) is fixedly connected to a plurality of high-pressure nozzles (306).

4. The anti-scratch display panel injection molding device according to claim 3, characterized in that: A waste heat recovery cylinder (307) is fixedly mounted on the outer surface of the barrel body (103); an air intake pipe (308) is fixedly connected to the outer surface of the waste heat recovery cylinder (307); an exhaust pipe (309) is fixedly connected to the outer surface of the waste heat recovery cylinder (307) away from the air intake pipe (308); and one end of the exhaust pipe (309) is connected to a circulation pipe (310) via a flange.

5. The anti-scratch display panel injection molding device according to claim 4, characterized in that: One end of the circulation pipe (310) is connected to the input end of the fan (302) via a flange, a recovery bucket (311) is provided on the bottom surface of the frame (101), the bottoms of the two mounting frames (301) are mounted on the rear surface of the frame (101) via auxiliary plates, one end of the connecting pipe (304) is fixedly passed through the external barrel (201) to the inside of the fixing ring (202), the outer surface of the annular pipe (305) is fixedly mounted on one end of the external barrel (201) away from the high-pressure nozzle (306), and the outer surface of the barrel body (103) is movably embedded in the annular pipe (305).

6. The anti-scratch display panel injection molding device according to claim 5, characterized in that: The outer surface of one side of the microporous filter (203) is fixedly connected to one end of the barrel body (103); the outer surface of the barrel body (103) is movably embedded in the sealing member (204), the protective plate (208) and the conical scraper plate (205); the bottom end of the air outlet pipe (209) is fixedly passed through the fixing ring (202) and the protective tube (206) to the outer surface; the bottom end of the air outlet pipe (209) is fixedly connected to the top end of the heat preservation tube (211); the bottom ends of the heat preservation tube (211) and the drain pipe (207) both extend to the inside of the frame (101); and the outer surface of the drain pipe (207) is fixedly installed inside the spiral blade (212).

7. The anti-scratch display panel injection molding device according to claim 6, characterized in that: A nozzle (106) is arranged at the other end of the barrel body (103), a heating element (107) is arranged on the outer surface of the barrel body (103), a static mold (108) is arranged on the outer surface of the nozzle (106), a mold clamping power mechanism (109) is arranged at the other side of the top of the frame (101), a movable mold (110) is fixedly mounted at the output end of the mold clamping power mechanism (109), and a PLC controller (111) is arranged at the top of the frame (101) near the power transmission mechanism (104).

8. The anti-scratch display panel injection molding device according to claim 7, characterized in that: A feeder (112) is fixedly mounted on the top of the mounting seat (102), a feeder pipe (113) is fixedly connected to the bottom end of the feeder (112), the bottom end of the feeder pipe (113) is fixedly connected to the outer surface of the barrel body (103), one end of the plunger body (105) is movably embedded in the interior of the barrel body (103), and the heating element (107) is located inside the waste heat recovery barrel (307).

9. The anti-scratch display panel injection molding device according to claim 8, characterized in that: Also includes: A scratch-resistant display panel injection molding system, comprising: a central control unit (4), a feeding unit (5), a plasticizing unit (6), an injection unit (7), a mold clamping unit (8), a cooling unit (9), and an ejection unit (10); The central control unit (4) is mainly responsible for coordinating the work of each unit module. The feeding unit (5) is used to transport the plastic granule raw material to the plasticizing unit (6). The plasticizing unit (6) mainly heats and plasticizes the transported plastic granule raw material. The injection unit (7) injects the plasticized plastic melt into the mold cavity. The clamping unit (8) is used to open and close the mold and keep the mold in a closed state during the injection process. The cooling unit (9) is used to accelerate the cooling and solidification of the plastic. The ejection unit (10) is used to eject the molded product from the mold cavity.

10. The anti-scratch display panel injection molding device according to claim 9, characterized in that: The plasticizing unit (6) comprises a heating module (61) and a temperature control module (62); The heating module (61) is mainly used to heat the plastic raw material so that it gradually melts and reaches a uniform viscous flow state, and the temperature control module (62) is used to accurately control the temperature of the heating module (61).

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