Injection molding device capable of avoiding bubble phenomenon and used for processing injection molding panel

Abstract

The invention relates to the technical field of injection molding, and provides an injection molding device for processing an injection molding panel capable of avoiding a bubble phenomenon, which comprises a platform and a material extruding mechanism mounted at the top end of the platform, a shell is arranged on one side of the top end of the platform, a movable mold plate is installed in the shell, an oscillation mechanism is arranged at the bottom of the movable mold plate, a fixed mold plate is installed on the inner side wall of the shell, and an air suction structure is arranged at one end of the fixed mold plate. By arranging the oscillation mechanism and arranging the transmission rack below the movable mold plate, energy is continuously stored through gear transmission and a clockwork spring during mold closing, during mold closing injection molding, the energy stored by the clockwork spring can be slowly released, a knocking block knocks an oscillation sheet, vibration is generated in a mold cavity, the air entrapment phenomenon is reduced, meanwhile, the mold cavity is subjected to air exhaust, and the mold closing efficiency is improved. And in the initial cooling stage of the injection molding part, the unshaped pouring gate is separated, so that the pouring gate is slightly adhered to the injection molding part, and a worker can conveniently remove the pouring gate.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding, in particular to an injection molding device for processing injection-molded panels and avoiding bubble phenomena. Background Art

[0002] Injection-molded panels refer to panels made of plastic materials (such as ABS plastic, etc.) through the injection molding process. Such panels usually have specific shapes and sizes to meet various application requirements. The injection molding device used for processing is a key equipment in injection molding technology. It can realize a series of processes such as heating and melting thermoplastics, high-pressure injection into molds, and cooling and solidification, thereby producing plastic products of the desired shape;

[0003] To this end, the patent with publication number CN112078093A discloses an injection molding processing device, including a feeding cylinder, the top of the middle part of the feeding cylinder is fixedly connected to a hemispherical shell, the inner side wall of the hemispherical shell is movably connected to one end of the feeding tube, the other end of the feeding tube is fixedly connected to the bottom of the feeding funnel, and a limiting mechanism is provided at the top of the middle part of the feeding cylinder, the limiting mechanism includes two No. 1 connecting rods and two No. 2 connecting rods, the two ends of the two No. 1 connecting rods are respectively fixedly connected to one end of the two ends of the top of the No. 1 semicircular rotating seat at the corresponding position. In the present invention, the feeding tube is limited by placing the feeding tube between the two No. 1 connecting rods and the two No. 2 connecting rods of the limiting mechanism, and the mutual movement between the two No. 1 connecting rods and the two No. 2 connecting rods is realized, so that the feeding tube and the feeding funnel can rotate in multiple directions to feed, thereby improving the working efficiency of the injection molding processing mechanism;

[0004] The injection molding processing device mentioned above uses a limiting mechanism to enable the feed pipe and feed funnel to rotate in multiple directions to feed the material. However, due to various reasons such as injection speed and pressure, bubbles are easily formed in the plastic melt during the injection molding process. The presence of bubbles not only affects the appearance of the injection-molded panel and causes surface defects, but may also reduce the mechanical properties of the product, such as strength and toughness, thereby affecting the product's performance and life. Summary of the Invention

[0005] The object of the present invention is to provide an injection molding device for processing injection-molded panels that avoids the bubble phenomenon, so as to solve the defect that bubbles are easily generated in the existing injection molding device for processing injection-molded panels.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an injection molding device for processing injection molded panels to avoid bubble phenomena, comprising a platform and an extrusion mechanism installed on its top; a shell is provided on one side of the top of the platform, and a movable template is installed inside the shell, an oscillation mechanism is provided at the bottom of the movable template, a fixed template is installed on the inner side wall of the shell, and an air suction structure is provided at one end of the fixed template, a cooling channel is provided inside the fixed template, and a cutting structure is installed inside the cooling channel, and a feeding hopper is installed on the top of the extrusion mechanism; the oscillation mechanism comprises a transmission rack, a bar box, an oscillation plate, a connecting shaft, a second transmission gear, a support frame and a support plate; the transmission rack is installed at the bottom end of the movable template, a support plate is provided at the bottom of the transmission rack, and a bar box is installed at one end of the support plate, and a support frame is provided in the middle position of the bar box, a second transmission gear is installed on one side of the bar box, and a connecting shaft is provided at the bottom end of the fixed template on the side of the second transmission gear, and an oscillation plate is installed on one side of the connecting shaft.

[0007] Preferably, the extrusion mechanism includes a barrel, a heating block, a screw and a rotating gear set; the barrel is installed on the top of the platform, a heating block is installed on the outside of the barrel, a screw is installed on the inside of the barrel, and a rotating gear set is provided on one side of the screw.

[0008] Preferably, a connecting plate is provided inside the shell, a movable plate is connected to one side of the connecting plate, and an ejector plate is provided on one side of the movable plate, the movable plate and the movable template are fixedly connected, an ejector shaft is provided on one side of the ejector plate, and an ejector block is provided inside the shell on one side of the ejector shaft, ejector pins are provided at the corners between the ejector plate and the movable template, and the ejector pins pass through the edge of the movable template, and demolding springs are wound around the outside of the ejector pins.

[0009] Preferably, the barrel and the second transmission gear are meshed together, a mainspring is disposed within the barrel, and a barrel shaft is mounted in the middle of the mainspring. A first transmission gear is mounted on one end of the barrel shaft, and the first transmission gear is meshed together with a transmission rack. Blocks are disposed on both sides of one end of the first transmission gear, and pull springs are mounted on the outer sides of the blocks. A first ratchet is disposed on the barrel shaft end at the outer end of the first transmission gear. When the movable platen drives the transmission rack to move in the opposite direction during mold separation, the block and the first ratchet slip off, causing the first transmission gear to idle.

[0010] Preferably, a baffle is mounted on one side of the oscillating plate, and compression springs are provided at both ends of the baffle. A protrusion is provided on one side of the baffle, and movable shafts are provided at both ends of the baffle, with a sliding structure formed between the movable shaft and the baffle. When the pressure of the baffle disappears, the baffle is driven to return to its original position under the action of the tension of the compression spring, and the striking block is again limited.

[0011] Preferably, a knocking block is installed at one end of the connecting shaft on one side of the baffle, a first linkage gear is installed at the other end of the connecting shaft, a pulley mechanism is installed in the middle of the connecting shaft, and the other end of the pulley mechanism is connected to the second transmission gear.

[0012] Preferably, a spring piece is provided at one end of the support frame, a stop block is installed on one side of the spring piece, and a second ratchet is provided at the middle of the bar shaft at the top of the spring piece.

[0013] Preferably, the air suction structure includes a linkage gear set, a second linkage gear, a chamber, a cavity, a first air pipe, a second air pipe and a piston; the chamber is installed at one end of the fixed template, a cavity is provided at the top of the chamber, the top and bottom of the chamber are connected to the second air pipe, and one end of the second air pipe is connected to the bottom of the cavity, an air outlet one-way valve is installed at the top and bottom of the chamber, an air inlet one-way valve is installed at the connection between the second air pipe and the chamber, the top of the cavity is connected to the first air pipe, and one end of the first air pipe is connected to the top of the fixed template, a piston is provided inside the chamber, and a second linkage gear is installed at the bottom of the piston, a linkage gear set is provided on one side of the second linkage gear, and the linkage gear set is meshed with the second linkage gear, and the linkage gear set is meshed with the first linkage gear.

[0014] Preferably, a plug rod is installed at the bottom of the piston, and a limit block is provided at the bottom of the plug rod, a sliding structure is formed between the limit block and the plug rod, the bottom end of the plug rod is connected to a connecting rod, and the bottom end of the connecting rod is connected to an eccentric wheel, and the eccentric wheel is connected to one end of the second linkage gear.

[0015] Preferably, the die cutting structure includes a turbine, a right-angle gear set, a third linkage gear, a movable rack, a slice and a return spring; the slice is arranged on the inner side of the fixed template, a return spring is installed on one side of the slice, a movable rack is provided at the top of the slice, and a third linkage gear is installed at one end of the movable rack, the third linkage gear and the movable rack are meshed and connected, a right-angle gear set is installed on one side of the third linkage gear, and a turbine is provided inside the cooling channel at one end of the right-angle gear set.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the injection molding device for processing injection-molded panels can store force through a spring while closing the mold, so that the bottom of the mold is struck during the injection molding process, generating oscillation to reduce air entrapment, and at the same time, air can be evacuated from the mold cavity to reduce the generation rate of bubbles and shrinkage holes. In addition, in the early stage of cooling the injection molded part, the unformed gate is separated, so that the gate and the injection molded part are slightly adhered, making it easier for workers to remove the gate and simplifying the operation.

[0017] 1. An oscillating mechanism is provided, and a transmission rack is provided under the movable platen. During mold closing, the gear transmission causes the spring to continuously store energy. When the mold is closed and injection molding is performed, the energy stored in the spring is slowly released. During the release process, due to the change in energy, the striking block strikes the oscillating plate from fast to slow, allowing the plastic melt to flow more densely in the mold, reducing air entrapment and avoiding bubble defects in the product.

[0018] Furthermore, while oscillating, the cavity is slowly evacuated through the gear assembly, and vacuuming is performed in the early and middle stages of injection molding. In the early stages of injection molding, there is more air in the mold cavity and volatile gases in the plastic melt. Pumping at this time helps the plastic melt fill the mold cavity more smoothly, reducing problems such as insufficient filling or uneven filling caused by gas obstruction. As the plastic melt is continuously injected, the gas pressure in the mold may rise again. At this time, continuous pumping can further reduce the gas pressure in the mold, reduce deformation, burning and other defects of the product caused by gas compression, and reduce the possibility of bubbles and shrinkage holes.

[0019] Furthermore, a speed sensor is installed on the top of the support plate. When the energy released by the mainspring becomes slower and slower, the speed of the barrel is monitored. When the speed of the barrel slows down, the knocking block knocks slowly. At this time, the cooling system can be controlled to start and coolant is injected into the cooling channel in the fixed platen to cool the injection molded part. There is no need to wait for the oscillation work to end before injecting coolant into the cooling channel, thereby improving the working efficiency of the device.

[0020] 2. By setting up a cutting structure, in the early stage of cooling of the injection molded part, under the action of water flow, the turbine and other components press the slices downward to separate the gate, but not completely separate, and still retain a slight connection. When demoulding, the gate and the injection molded part are separated at the same time. There is no need to cut and remove the glue nozzle on the product. It can be removed manually by gently pulling it, which simplifies the operation and improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the shell of the present invention in a cutaway state;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the barrel of the present invention in a cutaway state;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the movable platen in the mold closing state of the present invention;

[0025] Figure 5This is a schematic diagram of the three-dimensional structure of the movable template in the mold opening state of the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the movable mold of the present invention from a top view;

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the movable mold of the present invention when viewed from above;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the oscillation mechanism of the present invention;

[0029] Figure 9 This is a schematic diagram of the three-dimensional structure of the box of the present invention from a top view;

[0030] Figure 10 This is a schematic diagram of the three-dimensional structure of the box of the present invention when viewed from above;

[0031] Figure 11 This is a schematic diagram of the three-dimensional structure of the fixed template of the present invention;

[0032] Figure 12 This is a schematic diagram of the three-dimensional structure of the fixed template of the present invention in a cutaway state;

[0033] Figure 13 This is a schematic diagram of the three-dimensional structure of the cooling channel of the present invention in a cutaway state;

[0034] Figure 14 Schematic diagram of the three-dimensional structure of the oscillating plate of the present invention;

[0035] Figure 15 This is a schematic diagram of the three-dimensional structure of the chamber of the present invention in a cutaway state;

[0036] Figure 16 For the present invention Figure 12 A partial enlarged schematic diagram of the three-dimensional structure at point A in the middle.

[0037] Explanation of the reference numerals in the figure: 1. platform; 2. feeding hopper; 3. extrusion mechanism; 31. barrel; 32. heating block; 33. screw; 34. rotating gear set; 4. housing; 5. movable plate; 51. connecting plate; 52. ejector block; 53. movable plate; 54. ejector plate; 55. ejector shaft; 56. demoulding spring; 57. ejector pin; 6. oscillation mechanism; 61. transmission rack; 62. barrel; 621. mainspring; 622. barrel shaft; 623. first transmission gear; 624. first ratchet; 625. block; 626. pulling spring; 63. oscillation plate; 631. blocking plate; 632. protrusion; 633. movable shaft; 634. compression spring; 64. connecting shaft; 641. knock Strike block; 642, pulley mechanism; 643, first linkage gear; 65, second transmission gear; 66, support frame; 661, spring piece; 662, stop block; 663, second ratchet; 67, support plate; 7, fixed template; 8, suction structure; 81, linkage gear set; 82, second linkage gear; 83, chamber; 84, cavity; 85, first air pipe; 86, second air pipe; 87, piston; 871, plug rod; 872, limit block; 873, connecting rod; 874, eccentric wheel; 9, cooling channel; 10, die cutting structure; 101, turbine; 102, right-angle gear set; 103, third linkage gear; 104, movable rack; 105, slice; 106, return spring. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] See also Figures 1-16 The present invention provides an injection molding device for processing injection-molded panels to avoid bubble phenomena, comprising a platform 1 and an extrusion mechanism 3 installed on the top thereof; a shell 4 is provided on one side of the top of the platform 1, and a movable template 5 is installed inside the shell 4, an oscillation mechanism 6 is provided at the bottom of the movable template 5, a fixed template 7 is installed on the inner side wall of the shell 4, and an air suction structure 8 is provided at one end of the fixed template 7, a cooling channel 9 is provided inside the fixed template 7, and a cutting die structure 10 is installed inside the cooling channel 9, and a hopper 2 is installed on the top of the extrusion mechanism 3; the extrusion mechanism 3 comprises a barrel 31, a heating block 32, a screw 33 and a rotating gear set 34; the barrel 31 is installed on the top of the platform 1, a heating block 32 is installed outside the barrel 31, a screw 33 is installed inside the barrel 31, and a rotating gear set 34 is provided on one side of the screw 33;

[0040] Reference Figure 2、 Figure 3 and Figure 4 As shown, when the device is used, raw materials are put into the hopper 2, the heating block 32 is controlled to heat the inside of the barrel 31, a servo motor is installed on one side of the rotating gear set 34, the servo motor is started to rotate the screw 33 by rotating the gear set 34, and the incoming raw materials are continuously transported to the outlet. At the same time, the heating block 32 continuously melts the internal raw materials to form a plastic melt. When it is transported to the outlet, the cylinder installed on one side of the connecting plate 51 is started to push the connecting plate 51 to drive the movable plate 5 and the fixed plate 7 to close the mold. A cylinder is installed on one side of the screw 33, and the cylinder is started to push the screw 33 to inject the plastic melt, and the plastic melt enters the mold cavity after closing the mold from the gate of the fixed plate 7;

[0041] The oscillation mechanism 6 includes a transmission rack 61, a bar cassette 62, an oscillation plate 63, a connecting shaft 64, a second transmission gear 65, a support frame 66 and a support plate 67; the transmission rack 61 is mounted on the bottom end of the movable template 5, a support plate 67 is provided at the bottom of the transmission rack 61, and a bar cassette 62 is mounted on one end of the support plate 67, and a support frame 66 is provided in the middle position of the bar cassette 62, a second transmission gear 65 is mounted on one side of the bar cassette 62, and a connecting shaft 64 is provided at the bottom end of the fixed template 7 on one side of the second transmission gear 65, and an oscillation plate 63 is mounted on one side of the connecting shaft 64; the bar cassette 62 and the second transmission gear 65 are meshed and connected, and the bar cassette 62 is meshed with each other. A mainspring 621 is provided inside, and a shaft 622 is installed in the middle of the mainspring 621. A first transmission gear 623 is installed at one end of the shaft 622, and the first transmission gear 623 is meshed with the transmission rack 61. Blocks 625 are provided on both sides of one end of the first transmission gear 623, and pull springs 626 are installed on the outer sides of the blocks 625. A first ratchet 624 is provided at the end of the shaft 622 at the outer end of the first transmission gear 623. A spring 661 is provided at one end of the support frame 66, and a stop block 662 is installed on one side of the spring 661. A second ratchet 663 is provided in the middle of the shaft 622 at the top of the spring 661.

[0042] Reference Figure 7 、 Figure 9 and Figure 10As shown, when the device is in use, the transmission rack 61 below the movable plate 5 is driven to move synchronously during the process of closing the mold, and the transmission rack 61 is engaged with the first transmission gear 623. When the transmission rack 61 translates, the first transmission gear 623 is driven to rotate. The pulling spring 626 at one end of the first transmission gear 623 pulls the card block 625 to engage with the first ratchet 624. The first ratchet 624 is fixed to the bar shaft 622, so that when the first transmission gear 623 rotates, the bar shaft 62 is driven. 2 rotates synchronously. The end of the arbor 622 is fixed to the center of the mainspring 621. During rotation, the mainspring 621 is continuously wound, storing elastic potential energy. When the transmission rack 61 moves to the side of the first transmission gear 623, the spring 661 on the support frame 66 presses the stop block 662 through elastic force, causing the stop block 662 to engage with the second ratchet 663. When the transmission rack 61 moves away from the first transmission gear 623, the arbor 622 is limited, preventing the mainspring 621 from loosening from the center.

[0043] A baffle 631 is installed on one side of the oscillation plate 63, and compression springs 634 are installed at both ends of the baffle 631. A protrusion 632 is installed on one side of the baffle 631, and a movable shaft 633 is installed at both ends of the baffle 631. A sliding structure is formed between the movable shaft 633 and the baffle 631. A knock block 641 is installed at one end of the connecting shaft 64 on one side of the baffle 631, and a first linkage gear 643 is installed at the other end of the connecting shaft 64. A pulley mechanism 642 is installed in the middle of the connecting shaft 64, and the other end of the pulley mechanism 642 is connected to the second transmission gear 65.

[0044] Reference Figure 7 、 Figure 8 and Figure 14As shown, when the device is in use, when the movable plate 5 and the fixed plate 7 are closed, the movable plate 5 drives the transmission rack 61 to squeeze the protrusion 632, and drives the blocking plate 631 to approach the oscillation plate 63, so that the knocking block 641 loses its obstruction, and the elastic potential energy of the mainspring 621 is slowly released, driving the barrel 62 to rotate, so that the second transmission gear 65 engaged with it rotates, and the connecting shaft 64 is driven to rotate through the pulley mechanism 642, so that the knocking block 641 rotates continuously and hits the oscillation plate 63, thereby causing the fixed plate 7 connected to it to oscillate, so that the plastic melt in the cavity during the injection molding process flows better, fills the mold cavity, and is conducive to the molding of the product. At the same time, a speed sensor is installed on the support plate 67. The material of the outer teeth of the barrel 62 is a magnetic conductive material. Due to the initial stage of the release of the mainspring 621, a large amount of energy is stored, which can be quickly released and drive the striking block 641 to move at a faster speed. However, as the mainspring 621 continues to release, the energy stored in it gradually decreases, resulting in a weakening of the driving force. When it is sensed that the speed of the barrel 62 is too slow, the cooling system can be started in advance to directly cool the mold, without the need for water cooling after the oscillation ends, further improving work efficiency.

[0045] The air suction structure 8 includes a linkage gear set 81, a second linkage gear 82, a chamber 83, a cavity 84, a first air pipe 85, a second air pipe 86 and a piston 87; the chamber 83 is installed at one end of the fixed template 7, the top of the chamber 83 is provided with a cavity 84, the top and bottom of the chamber 83 are connected to the second air pipe 86, and one end of the second air pipe 86 is connected to the bottom of the cavity 84, the top and bottom of the chamber 83 are installed with an air outlet check valve, the connection between the second air pipe 86 and the chamber 83 is installed with an air inlet check valve, the top of the cavity 84 is connected to the first air pipe 85, and one end of the first air pipe 85 is connected to the top of the fixed template 7, the interior of the chamber 83 A piston 87 is provided at the bottom of the piston 87, and a second linkage gear 82 is installed at the bottom of the piston 87. A linkage gear set 81 is provided on one side of the second linkage gear 82, and the linkage gear set 81 is meshed with the second linkage gear 82, and the linkage gear set 81 is meshed with the first linkage gear 643. A plug rod 871 is installed at the bottom of the piston 87, and a limit block 872 is provided at the bottom of the plug rod 871. A sliding structure is formed between the limit block 872 and the plug rod 871. The bottom end of the plug rod 871 is connected to a connecting rod 873, and the bottom end of the connecting rod 873 is connected to an eccentric wheel 874. The eccentric wheel 874 is connected to one end of the second linkage gear 82;

[0046] Reference Figure 6 、 Figure 8 、 Figure 11 and Figure 15As shown, when the device is in use, when the knocking block 641 strikes, the connecting shaft 64 and the first linkage gear 643 rotate synchronously, driving the linkage gear set 81 meshing therewith to rotate, and the linkage gear set 81 meshes with the second linkage gear 82, so that the second linkage gear 82 and the eccentric wheel 874 rotate synchronously, and the plug rod 871 is pulled by the connecting rod 873 to slide inside the limit block 872, so that the piston 87 at the top of the plug rod 871 moves downward, and due to the large and small gear ratio of the first linkage gear 643 and the linkage gear set 81, the eccentric wheel 874 rotates slowly, thereby pulling the piston 87 Slowly move downward, and extract the gas from the row wall through the second air pipe 86 and the first air pipe 85, so as to realize vacuuming during injection molding, improve the fluidity of the plastic melt, and the exhaust of gas has the effect of reducing the bubble generation rate. The teeth at one end of the linkage gear set 81 make the second linkage gear 82 stop after rotating half a circle, so that no more gas is extracted in the later stage of injection molding. At the same time, the upper and lower parts of the chamber 83 are provided with gas outlet check valves, so that the gas can be discharged to the outside of the chamber 83 when the piston 87 is compressed, and the second air pipe 86 is provided with an air inlet check valve to prevent the gas from flowing back from the tube body when the piston 87 is compressed.

[0047] The die cutting structure 10 includes a turbine 101, a right-angle gear set 102, a third linkage gear 103, a movable rack 104, a slice 105 and a return spring 106. The slice 105 is arranged on the inner side of the fixed mold plate 7. A return spring 106 is installed on one side of the slice 105. The surface of the slice 105 is coated with a release film to prevent it from sticking to the injection molded part. A movable rack 104 is provided at the top of the slice 105, and the third linkage gear 103 is installed at one end of the movable rack 104. The third linkage gear 103 and the movable rack 104 are meshed and connected. A right-angle gear set 102 is installed on one side of the third linkage gear 103, and a turbine 101 is provided inside the cooling channel 9 at one end of the right-angle gear set 102.

[0048] Reference Figure 12 、 Figure 13 and Figure 16As shown, during cooling and shaping, the coolant enters the interior of the fixed template 7 from the cooling channel 9, and has a cooling effect on the injection molded part around the mold. At the same time, when the water flows through, it drives the turbine 101 to rotate, and drives the third linkage gear 103 to rotate through the right-angle gear set 102, so that the movable rack 104 meshing with it moves downward, driving the slice 105 at its bottom to continuously press down, cutting the mold gate at the initial cooling stage, but the gate and the injection molded part are not completely cut off, so that there is still a little connection between them. As the cooling continues, the turbine 101 rotates continuously, but the number of teeth of the movable rack 104 is fixed. When the movable rack 104 moves down to a certain position, the third linkage gear 103 continues to idle. When the injection molded part is finished molding and cooling, the turbine 101 stops rotating. After the third linkage gear 103 stops, the movable rack 104 loses the pressure of tooth rotation. Under the action of the tension of the reset spring 106, the slice 105 and the movable rack 104 are pushed to reset, and then demolding can be performed;

[0049] A connecting plate 51 is provided inside the housing 4. A movable plate 53 is connected to one side of the connecting plate 51. An ejector plate 54 is provided on one side of the movable plate 53. The movable plate 53 is fixedly connected to the movable plate 5. An ejector shaft 55 is provided on one side of the ejector plate 54. An ejector block 52 is provided inside the housing 4 on the side of the ejector shaft 55. Ejector pins 57 are provided at the corners between the ejector plate 54 and the movable plate 5. The ejector pins 57 pass through the edge of the movable plate 5. A demoulding spring 56 is wound around the outside of the ejector pins 57.

[0050] Reference Figure 4-Figure 7 As shown, when the device is in use, the cylinder on one side of the connecting plate 51 is started to drive the movable plate 53 and the movable template 5 fixed thereto to move outward, driving the injection molded part to separate from the fixed template 7. During the displacement process, the ejector shaft 55 on one side of the ejector plate 54 is pressed against the ejector block 52, so that the ejector plate 54 approaches the movable template 5, pushing the ejector pin 57 through the other side of the movable template 5, generating a thrust on the corner of the injection molded part, separating the injection molded part from the movable template 5, and achieving the demoulding effect. When the mold is closed, the ejector plate 54 is pushed back to its original position under the action of the tension of the demoulding spring 56. Since the gate of the injection molded part is finely connected to the body, it can be directly broken off manually when removed without special cutting, thereby improving production efficiency.

[0051] 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 scope of protection of the present invention.

Claims

1. An injection molding device for processing injection-molded panels to avoid bubble formation, comprising a platform (1) and an extrusion mechanism (3) mounted on the top of the platform; Its characteristics are: A shell (4) is provided on one side of the top of the platform (1), and a movable template (5) is installed inside the shell (4), an oscillation mechanism (6) is provided at the bottom of the movable template (5), a fixed template (7) is installed on the inner side wall of the shell (4), and an air suction structure (8) is provided at one end of the fixed template (7), a cooling channel (9) is provided inside the fixed template (7), and a cutting die structure (10) is installed inside the cooling channel (9), and a feeding hopper (2) is installed on the top of the extrusion mechanism (3); The oscillating mechanism (6) comprises a transmission rack (61), a bar box (62), an oscillating plate (63), a connecting shaft (64), a second transmission gear (65), a support frame (66) and a support plate (67); The transmission rack (61) is mounted on the bottom end of the movable template (5), a support plate (67) is provided at the bottom of the transmission rack (61), and a bar box (62) is installed at one end of the support plate (67), and a support frame (66) is provided at the middle position of the bar box (62), a second transmission gear (65) is installed on one side of the bar box (62), and a connecting shaft (64) is provided at the bottom end of the fixed template (7) on one side of the second transmission gear (65), and an oscillating plate (63) is installed on one side of the connecting shaft (64).

2. The injection molding device for processing injection-molded panels to avoid bubble phenomenon according to claim 1, characterized in that: The extrusion mechanism (3) comprises a barrel (31), a heating block (32), a screw (33) and a rotating gear set (34); The barrel (31) is installed on the top of the platform (1), a heating block (32) is installed on the outside of the barrel (31), a screw (33) is installed on the inside of the barrel (31), and a rotating gear set (34) is provided on one side of the screw (33).

3. The injection molding device for processing injection-molded panels to avoid bubble phenomenon according to claim 1, characterized in that: A connecting plate (51) is provided inside the shell (4), a movable plate (53) is connected to one side of the connecting plate (51), and an ejector plate (54) is provided on one side of the movable plate (53), the movable plate (53) and the movable plate (5) are fixedly connected, an ejector shaft (55) is provided on one side of the ejector plate (54), and an ejector block (52) is provided inside the shell (4) on one side of the ejector shaft (55), ejector pins (57) are provided at the corners between the ejector plate (54) and the movable plate (5), and the ejector pins (57) pass through the edge of the movable plate (5), and a demoulding spring (56) is wound around the outside of the ejector pins (57).

4. The injection molding device for processing injection-molded panels to avoid bubble phenomenon according to claim 1, characterized in that: The bar box (62) and the second transmission gear (65) are meshed and connected. A spring (621) is provided inside the bar box (62), and a bar shaft (622) is installed in the middle position of the spring (621). A first transmission gear (623) is installed at one end of the bar shaft (622), and the first transmission gear (623) and the transmission rack (61) are meshed and connected. Blocks (625) are provided on both sides of one end of the first transmission gear (623), and a pulling spring (626) is installed on the outer side of the block (625). A first ratchet (624) is provided on the bar shaft (622) end at the outer end of the first transmission gear (623).

5. The injection molding device for processing injection-molded panels to avoid bubble phenomenon according to claim 1, characterized in that: A baffle (631) is installed on one side of the oscillating plate (63), and compression springs (634) are provided at both ends of the baffle (631). A protrusion (632) is provided on one side of the baffle (631), and a movable shaft (633) is provided at both ends of the baffle (631), and a sliding structure is formed between the movable shaft (633) and the baffle (631).

6. The injection molding device for processing injection-molded panels to avoid bubble phenomenon according to claim 5, characterized in that: A knocking block (641) is installed at one end of the connecting shaft (64) on one side of the baffle (631), a first linkage gear (643) is installed at the other end of the connecting shaft (64), a pulley mechanism (642) is installed in the middle of the connecting shaft (64), and the other end of the pulley mechanism (642) is connected to the second transmission gear (65).

7. The injection molding device for processing injection-molded panels to avoid bubble formation according to claim 4, characterized in that: One end of the support frame (66) is provided with a spring piece (661), and a stop block (662) is installed on one side of the spring piece (661). A second ratchet (663) is provided in the middle of the bar shaft (622) at the top of the spring piece (661).

8. The injection molding device for processing injection-molded panels to avoid bubble phenomenon according to claim 6, characterized in that: The air intake structure (8) comprises a linkage gear set (81), a second linkage gear (82), a chamber (83), a cavity (84), a first air pipe (85), a second air pipe (86) and a piston (87); The chamber (83) is installed at one end of the fixed template (7), a cavity (84) is provided at the top of the chamber (83), the top and bottom of the chamber (83) are connected to a second air pipe (86), and one end of the second air pipe (86) is connected to the bottom of the cavity (84), the top and bottom of the chamber (83) are installed with an air outlet check valve, the connection between the second air pipe (86) and the chamber (83) is installed with an air inlet check valve, and the top of the cavity (84) is connected to the second air pipe (86). An air pipe (85) is provided, and one end of the first air pipe (85) is connected to the top of the fixed template (7). A piston (87) is provided inside the chamber (83), and a second linkage gear (82) is installed at the bottom of the piston (87). A linkage gear set (81) is provided on one side of the second linkage gear (82), and the linkage gear set (81) is meshed with the second linkage gear (82), and the linkage gear set (81) is meshed with the first linkage gear (643).

9. The injection molding device for processing injection-molded panels to avoid bubble phenomenon according to claim 8, characterized in that: A plug rod (871) is installed at the bottom of the piston (87), and a limit block (872) is provided at the bottom of the plug rod (871). A sliding structure is formed between the limit block (872) and the plug rod (871). The bottom end of the plug rod (871) is connected to a connecting rod (873), and the bottom end of the connecting rod (873) is connected to an eccentric wheel (874). The eccentric wheel (874) is connected to one end of the second linkage gear (82).

10. The injection molding device for processing injection-molded panels to avoid bubble formation according to claim 1, characterized in that: The die cutting structure (10) comprises a turbine (101), a right-angle gear set (102), a third linkage gear (103), a movable rack (104), a cutter (105) and a return spring (106); The slice (105) is arranged on the inner side of the fixed template (7), a return spring (106) is installed on one side of the slice (105), a movable rack (104) is arranged on the top of the slice (105), and a third linkage gear (103) is installed on one end of the movable rack (104), the third linkage gear (103) and the movable rack (104) are meshed and connected, a right-angle gear set (102) is installed on one side of the third linkage gear (103), and a turbine (101) is arranged inside the cooling channel (9) at one end of the right-angle gear set (102).

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