Display injection molding apparatus and molding method

CN118493750BActive Publication Date: 2026-09-22WAFFER TECH (MAANSHAN) LTD
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Patent Information

Application Number
CN202410471790.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-04-19
Publication Date
2026-09-22
Estimated Expiration
2044-04-19

AI Technical Summary

Technical Problem

[0004]在注塑成型模具在使用过程中,塑料原料受到高温熔化会产生刺鼻的气味,使工人身体不舒适,并且会危害工人的身体,且注塑模具在使用时,因注塑时液体流动灌注型腔,从而导致部分熔融塑料在灌注过程中会产生固化,进而影响注塑成型的质量,同时注塑成型需要进行冷却,而自然冷却时间较长,成型后,还需人工将成型后的注塑件由模腔内取出,从而降低了产品的生产效率

Benefits of technology

[0021]本发明通过设置净化机构,在进行注塑和脱模时,可对附近产生的气体进行吸取,并进入过滤箱内对其进行过滤净化后排出,避免异味对工人的身体造成损害;

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a display injection molding equipment and a molding method, and relates to the technical field of injection molding, which comprises a pushing member, one side of the pushing member is fixedly connected with a molding mechanism, the inner wall of the molding mechanism is fixedly connected with a purification mechanism, one end of the purification mechanism is fixedly connected with a pushing assembly, the purification mechanism is arranged, gas generated near can be sucked and discharged after being filtered and purified in the filter box during injection molding and demolding, and the harm of peculiar smell to the body of workers is avoided; the molding mechanism is arranged, the heating pipe heats the first mold during injection molding, and the molten plastic in the injection slot is heated, so that the molten plastic is not cooled quickly during injection molding, the effect of injection molding is not affected, the product quality is improved, the cooling mechanism rapidly cools and cools down the plastic after injection molding, subsequent demolding is facilitated, and work efficiency is improved.
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Description

Technical Field

[0001] This invention relates to the field of injection molding technology, specifically to a display injection molding equipment and molding method. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding, and is widely used in various fields. The advantages of injection molding include high production speed and efficiency, precise product dimensions, ease of product updates and replacements, and the ability to produce complex shapes. Injection molding is particularly suitable for mass production applications; for example, in the production of monitors, the injection molding of monitor bezels is highly efficient and produces excellent molding results.

[0003] Injection molding involves feeding plastic granules from the hopper into the pusher assembly. The screw inside the injection molding machine barrel in the pusher assembly uses its thrust to inject the plasticized molten resin into the corresponding mold for injection molding. After the molten plastic solidifies, the finished product is demolded to obtain the finished product.

[0004] During the use of injection molding molds, the plastic raw materials are melted at high temperatures, producing a pungent odor that makes workers uncomfortable and can harm their health. Furthermore, during the injection molding process, the liquid flows into the mold cavity, causing some of the molten plastic to solidify, which affects the quality of the injection molding. Additionally, injection molding requires cooling, which takes a long time to cool naturally. After molding, the molded parts must be manually removed from the mold cavity, thus reducing production efficiency. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a display injection molding equipment and molding method to solve the technical problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a display injection molding equipment and molding method, comprising a pusher, a molding mechanism fixedly connected to one side of the pusher, a purification mechanism fixedly connected to the inner wall of the molding mechanism, a pusher assembly fixedly connected to one end of the purification mechanism, a feeding mechanism fixedly connected to the outer wall of the pusher assembly, and a collection box provided below the molding mechanism; the molding mechanism includes a positioning post fixedly connected to one side of the pusher, a first mold slidably connected to the outer wall of the positioning post, a heating tube fixedly connected to the groove of the first mold, a first top plate fixedly connected to one side of the first mold, the first top plate fixedly connected to the telescopic end of the pusher, the first top plate slidably connected to the positioning post, a second top plate fixedly connected to the outer wall of the positioning post on one side of the first mold, a second mold fixedly connected to one side of the second top plate, an injection groove provided on the second mold, a demolding assembly slidably connected to the groove of the injection groove, a cooling mechanism provided on the second mold, and a purification mechanism fixedly connected to the inner wall of the second mold.

[0007] As a preferred embodiment of the present invention, the demolding assembly includes a top block that is slidably connected to the injection molding groove, a top rod is fixedly connected to one side of the top block, an L-shaped rod is fixedly connected to one end of the top rod, two sets of top rods are provided, and the L-shaped rod is fixedly connected to the first mold.

[0008] As a preferred embodiment of the present invention, the purification mechanism includes an injection pipe fixedly connected to the inner wall of the second mold, a first air guide pipe fixedly connected to the outer wall of the injection pipe, a first rotating pipe rotatably connected to one end of the injection pipe, an inner fan blade fixedly connected to the inner wall of the first rotating pipe, an outer fan blade fixedly connected to the outer wall of the first rotating pipe, a pushing assembly rotatably connected to one end of the first rotating pipe, a filter box fixedly connected to one end of the first air guide pipe, a second air guide pipe fixedly connected to the inner wall of the filter box, a filter assembly rotatably connected to one end of the second air guide pipe, an air intake fixedly connected to the outer wall of the first air guide pipe, and the air intake fixedly connected to the second top plate.

[0009] As a preferred embodiment of the present invention, the filter assembly includes a shaftless fan rotatably connected to one end of a second air duct, a third air duct rotatably connected to one end of the shaftless fan, a ratchet fixedly connected to the outer wall of the third air duct, the ratchet engaging a ratchet, a connecting plate fixedly connected to one end of the ratchet, a first mold fixedly connected to one end of the connecting plate, and the third air duct fixedly connected to the air intake.

[0010] In a preferred embodiment of the present invention, the feeding mechanism includes a heat collection barrel fixedly connected to the outer wall of the pushing assembly, a preheating barrel fixedly connected to the inner wall of the heat collection barrel, an exhaust port on the preheating barrel, a stirring barrel fixedly connected to the inner side of the preheating barrel, a rotating shaft rotatably connected to the inner wall of the stirring barrel, a stirring plate fixedly connected to the outer wall of the rotating shaft, an output end of a servo motor fixedly connected to the top of the rotating shaft, a preheating assembly fixedly connected to the outer wall of the rotating shaft, a feeding pipe fixedly connected to the inside of the stirring barrel, the feeding pipe being fixedly connected to the pushing assembly, a feeding hopper fixedly connected to the inside of the stirring barrel, and the feeding hopper being fixedly connected to the preheating barrel.

[0011] As a preferred embodiment of the present invention, the preheating assembly includes a rotating cover fixedly connected to the outer wall of a rotating shaft, the rotating cover being rotatably connected to a stirring tank, a rack ring fixedly connected to the outer wall of the rotating cover, the rack ring meshing with a gear, a rotating shaft fixedly connected to the inner wall of the gear, a guide fan fixedly connected to the bottom end of the rotating shaft, a fixing ring rotatably connected to the outer wall of the rotating shaft, the fixing ring being fixedly connected to the preheating tank, and multiple sets of gears, rotating shafts, and guide fans are provided, and the multiple sets of gears, rotating shafts, and guide fans are arranged in a circumferential array with the rotating shaft as the axis.

[0012] As a preferred embodiment of the present invention, the cooling mechanism includes a cooling groove opened on the second mold, and a cooling pipe is fixedly connected to the inner wall of the second mold and communicates with the cooling groove. Two sets of cooling pipes are provided, and one end of the cooling pipe is fixedly connected to a coolant circulation tank.

[0013] As a preferred technical solution of the present invention, the specific method steps are as follows;

[0014] Step 1: Plastic granules enter the mixing tank through the feed hopper, and the servo motor is started to stir the plastic granules in the mixing tank through the stirring plate;

[0015] Step 2: The rotating shaft drives the guide fan to rotate, thereby drawing hot air from the heat collection tank into the preheating tank to preheat the plastic granules in the mixing tank.

[0016] Step 3: Start the pusher to bring the first mold into contact with the second top plate, and then start injection molding. At the same time, the heating tube is started to heat the plastic so that the molten plastic in the injection tank does not cool down quickly during the injection process.

[0017] Step 4: During injection molding, the heated molten plastic in the pusher assembly is pushed into the first rotating tube, which drives the air flow in the first air duct, thereby drawing the polluting gas generated around the molding mechanism during injection molding into the filter box for purification.

[0018] Step 5: After injection molding is completed, the heating tube stops heating, and the cooling mechanism rapidly cools down the plastic after injection molding. The pushing component moves the first mold away from the second top plate, thereby moving the top block along the injection groove to push the molded display out of the injection groove. Under the action of gravity, the display falls into the collection box for collection.

[0019] Step Six: While the pusher is pushing the demolding process, the first mold moves and drives the shaftless fan to rotate, thereby driving the polluted gas generated during demolding into the filter box through the third air duct, where it is purified and then discharged.

[0020] In summary, the present invention has the following main beneficial effects:

[0021] This invention incorporates a purification mechanism that can capture gases generated in the vicinity during injection molding and demolding, filter and purify them in a filter box before discharging, thus preventing odors from harming workers' health.

[0022] This invention, by setting up a molding mechanism, heats the first mold and the molten plastic in the injection tank during the injection process, preventing it from cooling down too quickly and affecting the injection effect, thereby improving the quality of the finished product. After injection, the cooling mechanism rapidly cools down the plastic, facilitating subsequent demolding and improving work efficiency.

[0023] By setting up a feeding mechanism, the present invention can utilize the heat generated when the plastic particles inside the feeding component melts to preheat the plastic particles, which facilitates the subsequent melting of the plastic particles by the feeding component and improves work efficiency. Attached Figure Description

[0024] Figure 1 This is a first-view structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the second perspective structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the feeding mechanism of the present invention;

[0027] Figure 4 For the present invention Figure 3 Enlarged view of section A;

[0028] Figure 5 The diagram shows an exploded view of the molding mechanism and a schematic diagram of the demolding assembly of the present invention.

[0029] Figure 6 This is an exploded view of part of the molding mechanism of the present invention;

[0030] Figure 7This is a schematic diagram of the internal structure of the purification mechanism of the present invention.

[0031] In the diagram: 100, pushing component; 200, forming mechanism; 300, cooling mechanism; 400, purification mechanism; 500, pushing assembly; 600, feeding mechanism; 700, collection box; 800, feeding hopper; 900, servo motor;

[0032] 210. First top plate; 220. First mold; 230. Positioning pin; 240. Heating element; 250. Second top plate; 260. Second mold; 270. Injection tank; 280. Demolding assembly;

[0033] 281. Top block; 282. Top rod; 283. L-shaped rod;

[0034] 310. Cooling tank; 320. Cooling pipe; 330. Coolant circulation tank;

[0035] 410. Injection pipe; 420. First air guide pipe; 430. Filter box; 440. First rotating pipe; 450. Inner fan blade; 460. Outer fan blade; 470. Second air guide pipe; 480. Filter assembly; 490. Air intake;

[0036] 481. Shaftless fan; 482. Third air duct; 483. Ratchet; 484. Ratchet; 485. Connecting plate;

[0037] 610. Feed pipe; 620. Mixing tank; 630. Rotating shaft; 640. Mixing plate; 650. Preheating assembly; 660. Preheating tank; 670. Air inlet pipe; 680. Heat collection tank; 690. Exhaust vent;

[0038] 651. Rotating cover; 652. Rack ring; 653. Gear; 654. Rotating shaft; 655. Guide fan; 656. Fixing ring. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] The embodiments of the present invention will now be described.

[0041] A display injection molding equipment and molding method, such as Figures 1 to 7As shown, the device includes a pusher 100, a forming mechanism 200 fixedly connected to one side of the pusher 100, a purification mechanism 400 fixedly connected to the inner wall of the forming mechanism 200, a pusher assembly 500 fixedly connected to one end of the purification mechanism 400, a feeding mechanism 600 fixedly connected to the outer wall of the pusher assembly 500, and a collection box 700 disposed below the forming mechanism 200. The forming mechanism 200 includes a positioning post 230 fixedly connected to one side of the pusher 100, a first mold 220 slidably connected to the outer wall of the positioning post 230, a heating tube 240 fixedly connected to the groove of the first mold 220, a first top plate 210 fixedly connected to one side of the first mold 220, the first top plate 210 fixedly connected to the telescopic end of the pusher 100, and a slidably connected first top plate 210 to the positioning post 230. A second top plate 250 is fixedly connected to the outer wall of the positioning post 230 on one side of the first mold 220. A second mold 260 is fixedly connected to one side of the second top plate 250. An injection groove 270 is provided on the second mold 260. A demolding assembly 280 is slidably connected within the injection groove 270. A cooling mechanism 300 is provided on the second mold 260. A purification mechanism 400 is fixedly connected to the inner wall of the second mold 260. The demolding assembly 280 includes a top block 281 slidably connected within the injection groove 270. A top rod 282 is fixedly connected to one side of the top block 281. One end of the push rod 282 is fixedly connected to an L-shaped rod 283. Two sets of push rods 282 are provided. The L-shaped rods 283 are fixedly connected to the first mold 220. The cooling mechanism 300 includes a cooling groove 310 opened on the second mold 260. A cooling pipe 320 is fixedly connected to the inner wall of the second mold 260 and communicates with the groove of the cooling groove 310. Two sets of cooling pipes 320 are provided. One end of the cooling pipe 320 is fixedly connected to a coolant circulation tank 330.

[0042] Before injection molding, the pusher 100 moves the first top plate 210 closer to the second top plate 250, thereby causing the first mold 220 to fit against the second top plate 250. Then, injection molding begins. Plastic granules enter the pusher assembly 500 through the feeding mechanism 600 and are processed into liquid molten plastic. After passing through the purification mechanism 400, they enter the injection tank 270. During the injection molding process, the heating pipe 240 heats the first mold 220, thereby heating the molten plastic in the injection tank 270 to prevent it from cooling down too quickly and affecting the injection effect. After injection molding is completed, the heating pipe 240 stops heating, and the coolant in the coolant circulation tank 330 enters the second mold through a set of cooling pipes 320. The plastic is cooled and cooled rapidly in the cooling tank 310 on injection mold 260, and then flows into the coolant circulation tank 330 through another set of cooling tanks 310 for circulation. This facilitates subsequent demolding. After the plastic in injection mold 270 is cooled and formed, the pusher 100 moves the first mold 220 away from the second top plate 250, thereby moving the L-shaped rod 283 towards the pusher 100, which in turn moves the ejector rod 282 towards the pusher 100. The movement of the ejector rod 282 moves the ejector block 281 along the injection mold 270, thereby pushing the display formed in the injection mold 270 out of the injection mold 270. Under the action of gravity, the display falls into the collection box 700 for subsequent collection by staff.

[0043] Please refer to this carefully. Figure 2 , Figure 5 and Figure 7 The purification mechanism 400 includes an injection pipe 410 fixedly connected to the inner wall of the second mold 260. A first air guide pipe 420 is fixedly connected to the outer wall of the injection pipe 410. One end of the injection pipe 410 is rotatably connected to a first rotating pipe 440. An inner fan blade 450 is fixedly connected to the inner wall of the first rotating pipe 440, and an outer fan blade 460 is fixedly connected to the outer wall of the first rotating pipe 440. One end of the first rotating pipe 440 is rotatably connected to a pushing assembly 500. One end of the first air guide pipe 420 is fixedly connected to a filter box 430. The inner wall of the filter box 430 is fixedly connected to a second air guide pipe 470. One end of the second air guide pipe 470 is rotatably connected to... The filter assembly 480 includes an air inlet 490 fixedly connected to the outer wall of the first air duct 420, and the air inlet 490 is fixedly connected to the second top plate 250. The filter assembly 480 includes a shaftless fan 481 rotatably connected to one end of the second air duct 470, a third air duct 482 rotatably connected to one end of the shaftless fan 481, a ratchet 483 fixedly connected to the outer wall of the third air duct 482, the ratchet 483 engaging a ratchet 484, a connecting plate 485 fixedly connected to one end of the ratchet 484, a first mold 220 fixedly connected to one end of the connecting plate 485, and the third air duct 482 fixedly connected to the air inlet 490.

[0044] Plastic granules enter the feeding assembly 500 through the feeding mechanism 600 and are processed into liquid molten plastic. The molten plastic then passes through the first rotating pipe 440 and enters the injection pipe 410. The flow of liquid in the first rotating pipe 440 drives the inner fan blade 450 to rotate, which in turn drives the first rotating pipe 440 to rotate, and consequently the outer fan blade 460 to rotate. The rotation of the outer fan blade 460 drives the airflow in the first air duct 420, thereby drawing polluted gases from around the molding mechanism 200 during injection molding into the first air duct 420 through the air intake 490. The air then enters the filter box 430 through the first air duct 420, where it is purified before further processing. Discharge; after injection molding is completed, when the mold is opened, the first mold 220 moves, driving the connecting plate 485 to move, which in turn drives the ratchet 484 to move, which in turn drives the ratchet 483 to rotate. The rotation of the ratchet 483 drives the shaftless fan 481 to rotate, which in turn drives the air flow in the third air duct 482. The polluted gas generated when the molding mechanism 200 demolds is drawn into the third air duct 482 through the air intake 490, and then enters the filter box 430 through the second air duct 470 for air purification before being discharged. When the first mold 220 is close to the second top plate 250, due to the characteristics of the ratchet, the ratchet 484 does not drive the ratchet 483 to rotate.

[0045] Please refer to this carefully. Figures 2 to 4The feeding mechanism 600 includes a heat collection tank 680 fixedly connected to the outer wall of the pushing assembly 500. A preheating tank 660 is fixedly connected to the inner wall of the heat collection tank 680. An exhaust port 690 is provided on the preheating tank 660. A stirring tank 620 is fixedly connected to the inner side of the preheating tank 660. A rotating shaft 630 is rotatably connected to the inner wall of the stirring tank 620. A stirring plate 640 is fixedly connected to the outer wall of the rotating shaft 630. The output end of a servo motor 900 is fixedly connected to the top of the rotating shaft 630. A preheating assembly 650 is fixedly connected to the outer wall of the rotating shaft 630. A feeding pipe 610 is fixedly connected to the inside of the stirring tank 620. The feeding pipe 610 is fixedly connected to the pushing assembly 500. A feeding hopper 800 is fixedly connected to the inside of the stirring tank 620. The preheating assembly 650 is fixedly connected to the preheating tank 660. The preheating assembly 650 includes a rotating cover 651 fixedly connected to the outer wall of the rotating shaft 630. The rotating cover 651 is rotatably connected to the stirring tank 620. A rack ring 652 is fixedly connected to the outer wall of the rotating cover 651. The rack ring 652 meshes with a gear 653. A rotating shaft 654 is fixedly connected to the inner wall of the gear 653. A guide fan 655 is fixedly connected to the bottom end of the rotating shaft 654. A fixing ring 656 is rotatably connected to the outer wall of the rotating shaft 654. The fixing ring 656 is fixedly connected to the preheating tank 660. Multiple sets of gears 653, rotating shafts 654, and guide fans 655 are arranged in a circumferential array with the rotating shaft 630 as the axis.

[0046] Plastic granules enter the mixing tank 620 through the feed hopper 800. The servo motor 900 is activated, driving the rotating shaft 630 to rotate, which in turn drives the mixing plate 640, preventing the plastic granules from sticking together. This also ensures more even preheating of the plastic granules in the mixing tank 620. The preheated plastic granules in the mixing tank 620 then enter the mixing tank 500 through 610 for further heating and melting. Simultaneously, the rotation of the rotating shaft 630 drives the rotating cover 651 to rotate, which in turn drives the rack ring 652 to rotate. This, in turn, drives the gear 653 to rotate around the rotating shaft 654. The rotating shaft 654 rotates along with the gear 653. The movement of the pusher assembly 500 causes the guide fan 655 to rotate, which in turn causes the air in the preheating tank 660 to flow and be discharged from the exhaust port 690. At the same time, the heat generated by the pusher assembly 500 when melting the plastic particles inside can be concentrated in the heat collection tank 680 and then enter the preheating tank 660 through the air inlet pipe 670. The hot air generated by the pusher assembly 500 in the heat collection tank 680 preheats the plastic particles in the mixing tank 620 in the preheating tank 660, which facilitates the subsequent melting of the plastic particles by the pusher assembly 500. All parts not mentioned in this device are the same as or can be implemented using existing technology.

[0047] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A display injection molding apparatus, comprising a pusher (100), characterized in that: A forming mechanism (200) is fixedly connected to one side of the pusher (100), a purification mechanism (400) is fixedly connected to the inner wall of the forming mechanism (200), a pusher assembly (500) is fixedly connected to one end of the purification mechanism (400), a feeding mechanism (600) is fixedly connected to the outer wall of the pusher assembly (500), and a collection box (700) is provided below the forming mechanism (200). The forming mechanism (200) includes a positioning post (230) fixedly connected to one side of the pusher (100). A first mold (220) is slidably connected to the outer wall of the positioning post (230). A heating tube (240) is fixedly connected to the groove of the first mold (220). A first top plate (210) is fixedly connected to one side of the first mold (220). The first top plate (210) is fixedly connected to the telescopic end of the pusher (100). The first top plate (210) is slidably connected to the positioning post (230). A second top plate (250) is fixedly connected to the outer wall of the positioning post (230) on one side of the first mold (220). A second top plate (250) is fixedly connected to one side of the second top plate (250). Two molds (260) are provided. The second mold (260) has an injection groove (270). A demolding assembly (280) is slidably connected in the groove of the injection groove (270). A cooling mechanism (300) is provided on the second mold (260). A purification mechanism (400) is fixedly connected to the inner wall of the second mold (260). The demolding assembly (280) includes a top block (281) that is slidably connected in the groove of the injection groove (270). A top rod (282) is fixedly connected to one side of the top block (281). An L-shaped rod (283) is fixedly connected to one end of the top rod (282). Two sets of top rods (282) are provided. The L-shaped rod (283) is fixedly connected to the first mold (220). The purification mechanism (400) includes an injection pipe (410) fixedly connected to the inner wall of the second mold (260). A first air guide pipe (420) is fixedly connected to the outer wall of the injection pipe (410). One end of the injection pipe (410) is rotatably connected to a first rotating pipe (440). An inner fan blade (450) is fixedly connected to the inner wall of the first rotating pipe (440), and an outer fan blade (460) is fixedly connected to the outer wall of the first rotating pipe (440). One end of the first air duct (420) is rotatably connected to a pusher assembly (500), one end of the first air duct (420) is fixedly connected to a filter box (430), the inner wall of the filter box (430) is fixedly connected to a second air duct (470), one end of the second air duct (470) is rotatably connected to a filter assembly (480), the outer wall of the first air duct (420) is fixedly connected to an air intake (490), and the air intake (490) is fixedly connected to the second top plate (250); The filter assembly (480) includes a shaftless fan (481) rotatably connected to one end of a second air duct (470), a third air duct (482) rotatably connected to one end of the shaftless fan (481), a ratchet (483) fixedly connected to the outer wall of the third air duct (482), a ratchet (483) engaging a ratchet (484), a connecting plate (485) fixedly connected to one end of the ratchet (484), a first mold (220) fixedly connected to one end of the connecting plate (485), and a fixed connection between the third air duct (482) and the air intake (490).

2. The display injection molding equipment according to claim 1, characterized in that: The feeding mechanism (600) includes a heat collection tank (680) fixedly connected to the outer wall of the pushing assembly (500). A preheating tank (660) is fixedly connected to the inner wall of the heat collection tank (680). An exhaust port (690) is provided on the preheating tank (660). A stirring tank (620) is fixedly connected to the inner side of the preheating tank (660). A rotating shaft (630) is rotatably connected to the inner wall of the stirring tank (620). A stirring plate (640) is fixedly connected to the outer wall of the rotating shaft (630). The top of the rotating shaft (630) is fixedly connected to the output end of the servo motor (900), the outer wall of the rotating shaft (630) is fixedly connected to the preheating component (650), the inside of the mixing tank (620) is fixedly connected to the feed pipe (610), the feed pipe (610) is fixedly connected to the pusher component (500), the inside of the mixing tank (620) is fixedly connected to the feed hopper (800), and the feed hopper (800) is fixedly connected to the preheating tank (660).

3. The display injection molding equipment according to claim 2, characterized in that: The preheating assembly (650) includes a rotating cover (651) fixedly connected to the outer wall of the rotating shaft (630). The rotating cover (651) is rotatably connected to the stirring tank (620). A rack ring (652) is fixedly connected to the outer wall of the rotating cover (651). The rack ring (652) meshes with a gear (653). A rotating shaft (654) is fixedly connected to the inner wall of the gear (653). A guide fan (655) is fixedly connected to the bottom end of the rotating shaft (654). A fixing ring (656) is rotatably connected to the outer wall of the rotating shaft (654). The fixing ring (656) is fixedly connected to the preheating tank (660). Multiple sets of gears (653), rotating shafts (654), and guide fans (655) are provided. Multiple sets of gears (653), rotating shafts (654), and guide fans (655) are arranged in a circumferential array with the rotating shaft (630) as the axis.

4. The display injection molding equipment according to claim 3, characterized in that: The cooling mechanism (300) includes a cooling groove (310) opened on the second mold (260). A cooling pipe (320) is fixedly connected to the inner wall of the second mold (260) and communicates with the groove of the cooling groove (310). Two sets of cooling pipes (320) are provided. One end of the cooling pipe (320) is fixedly connected to a coolant circulation tank (330).

5. A display injection molding method, using the display injection molding equipment as described in claim 4, characterized in that: The specific steps are as follows; Step 1: Plastic granules enter the mixing tank (620) through the feed hopper (800), and the servo motor (900) is started to stir the plastic granules in the mixing tank (620) through the stirring plate (640); Step 2: The rotating shaft (630) drives the guide fan (655) to rotate, thereby driving the hot air in the heat collection tank (680) into the preheating tank (660) to preheat the plastic particles in the mixing tank (620); Step 3: Start the pusher (100) to drive the first mold (220) to fit with the second top plate (250), and then start injection molding. At the same time, the heating pipe (240) starts heating so that the molten plastic in the injection tank (270) will not cool down quickly during the injection molding process. Step 4: During injection molding, the heated molten plastic in the pusher assembly (500) is pushed into the first rotating tube (440), and drives the air flow in the first air duct (420), thereby drawing the polluting gas generated around the molding mechanism (200) during injection molding into the filter box (430) for purification; Step 5: After injection molding is completed, the heating tube (240) stops heating, and the cooling mechanism (300) rapidly cools down the plastic after injection molding. The pusher (100) moves the first mold (220) away from the second top plate (250), thereby moving the top block (281) along the injection groove (270) to push the molded display out of the injection groove (270). Under the action of gravity, the display falls into the collection box (700) for collection. Step 6: While the pusher (100) drives the demolding, the first mold (220) moves and drives the shaftless fan (481) to rotate, thereby driving the polluted gas generated during demolding to enter the filter box (430) through the third air duct (482) for air purification and then discharge.

Citation Information

Patent Citations

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