A forming mold for recycling plastic injection

Abstract

The application discloses a forming die for recycling plastic injection molding and belongs to the technical field of recycling plastic injection molding, which comprises a mounting table, a fixed seat is fixedly connected to one side of the top of the mounting table, and a fixed mold seat is fixedly connected to one side of the fixed seat. In the application, the screw feeding unit can deliver the plastic solution in the plastic heating and mixing barrel to the inside of the injection port. The plastic solution in the inside of the injection port can continuously produce disturbance and mixing under the action of the second spiral groove, the melt pressure in the plastic solution can be uniformly distributed, the local high-pressure or low-pressure area in the plastic solution can be reduced, the pressure fluctuation of the plastic solution can be reduced, the flow effect and flow stability in the plastic solution injection process can be improved, the plastic solution in the center part of the plastic solution continuously flowing can make the turbine rotate, the stress distribution of the injection solution can be further homogenized in the rotating process of the turbine, and the surface defects of the product can be further reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of recycling plastic injection molding, and particularly relates to a forming mold for recycling plastic injection molding. BACKGROUND

[0002] Recycled plastic refers to the process of recycling waste plastic products or plastic waste into reusable plastic materials through collection, classification, cleaning, crushing and melting processes. In order to reduce resource waste and environmental pollution, after recycling and processing of plastic, it is necessary to form and process it into products again through an injection mold.

[0003] As disclosed in Chinese patent document (CN118269302B), a mold structure for improving plastic flowability relates to the technical field of injection molding, which comprises a base, a fixed seat arranged on one side of the top of the base, and a positioning seat arranged on the other side of the top of the base, a fixed mold is arranged on the inner side of the fixed seat, a movable mold matched with the fixed mold is arranged between the fixed seat and the positioning seat; a plasticizing groove is arranged on the inner side of the fixed mold, a sealing mechanism is arranged in the plasticizing groove; a closing mold is arranged in the embedded groove; injection grooves are equidistantly arranged on the inner end face of the closing mold, a pushing mechanism is arranged in the injection grooves; a stabilizing mechanism is arranged between the embedded groove and the closing mold; the fixed mold, the movable mold and the closing mold cooperate with the sealing mechanism, which can improve the uniform thickness of the plastic injection part during injection molding, and the sealing mechanism and the pushing mechanism can achieve uniform injection during the retraction process, effectively improving the uniform thickness of the injection part in the mold. However, the device may have the following problems during use: after the recycled plastic is processed and degraded, its flowability may be relatively weak, which may cause uneven flow when filling the mold cavity, and then cause inconsistent cooling rate, increase internal stress, and affect the quality of the finished product. SUMMARY

[0004] The purpose of the present application is to solve the problem that the flowability of recycled plastic may be relatively weak after processing and degradation, which may cause uneven flow when filling the mold cavity, and then cause inconsistent cooling rate, increase internal stress, and affect the quality of the finished product during use of the prior art. A forming mold for recycling plastic injection molding is provided.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] The utility model provides a kind of forming mould for recycling plastic injection molding, including installation platform, one side of the top of the installation platform is fixedly connected with fixed seat, one side of the fixed seat is fixedly connected with fixed die seat, the fixed die seat side away from fixed seat is connected with fixed die, the fixed die, fixed die seat and fixed seat connection place are provided with same injection port, one side of the injection port is provided with auxiliary injection port, and the injection port and auxiliary injection port are provided with closed assembly between, one side of the closed assembly is provided with booster assembly, the inside of the injection port is provided with turbulence component;

[0007] The turbulence component includes a circular plate and a second spiral groove, the second spiral groove is located on the inner circumferential side of the injection port, the circular plate is arranged on the side opposite to the auxiliary injection port, and the circular plate is fixedly connected inside the injection port by a fixed rod, a turbine is arranged on the side opposite to the second spiral groove, and the turbine is arranged on the side opposite to the second spiral groove.

[0008] As a further description of the above technical solution:

[0009] The auxiliary injection port is located inside the fixed die, a screw feeding unit is arranged on the side of the injection port away from the auxiliary injection port, the bottom of the screw feeding unit is fixedly connected with the top of the installation platform through a support frame, a movable die unit is arranged on the side of the auxiliary injection port away from the injection port, the movable die unit is slidingly connected to the top of the installation platform, a cavity is formed in the fixed die, and the cavity is connected in communication with the fixed die seat through a rectangular through hole.

[0010] As a further description of the above technical solution:

[0011] The closed assembly includes a hydraulic cylinder, the bottom of the hydraulic cylinder is fixedly connected with the top of the fixed die seat, the output shaft of the hydraulic cylinder extends into the fixed die seat and is fixedly connected with a mounting plate at one end, the mounting plate is arranged in a T shape in cross section, a first tapered block is fixedly connected on one side of the bottom of the mounting plate, and a second tapered block is arranged on the side of the first tapered block away from the mounting plate.

[0012] As a further description of the above technical solution:

[0013] The second tapered block extends into the fixed die on the side away from the first tapered block and is fixedly connected with a connecting plate, the second tapered block and the connecting plate are both slidingly connected inside the fixed die, a first spring is fixedly connected on the side of the connecting plate away from the second tapered block, and the other side of the first spring is fixedly connected with the inner wall of the fixed die.

[0014] As a further description of the above technical solution:

[0015] The hollow cylinder is fixedly connected with the connecting plate at one end, a connecting rod is arranged on the inner side of the hollow cylinder away from the connecting plate, a first gear is fixedly connected with the connecting rod away from the hollow cylinder through a round rod, and the round rod is fixedly connected with the inner wall of the fixed mold through a support seat.

[0016] As a further description of the above technical solution:

[0017] The first gear is meshingly connected with an annular gear, the annular gear is fixedly connected with an annular block inside, a plurality of second sliding grooves and closure plates are arranged in a circumferential array on one side of the annular block, the second sliding grooves are located inside the annular block, and the closure plates are slidingly connected inside the second sliding grooves through limiting rods.

[0018] As a further description of the above technical solution:

[0019] The annular block, the auxiliary injection port and the injection port are on the same axis, the auxiliary injection port is provided in a T-shaped cross-sectional shape, a first sliding groove is formed on one side of the auxiliary injection port, the first sliding groove is arranged on the side opposite to the closure plate, the first sliding groove is provided in a regular hexagonal cross-sectional shape, and the closure plate is slidingly connected inside the first sliding groove through a limiting sliding block.

[0020] As a further description of the above technical solution:

[0021] The booster assembly comprises a connecting box, one side of the connecting box is fixedly connected with the outer wall of the fixed seat, the connecting box is arranged on the side opposite to the screw feeding unit, limiting through holes are formed at the joints of the connecting box, the fixed seat and the fixed mold seat, the limiting through holes are provided in a T-shaped cross-sectional shape, a rotating shaft is rotatably connected with one side of the connecting box, a third gear is fixedly connected with the top side of the outer portion of the rotating shaft, a first rack is meshingly connected with one side of the third gear, the other end of the first rack extends into the fixed mold seat and is fixedly connected with a vertical plate, and the vertical plate and the first rack are slidingly connected inside the limiting through hole.

[0022] As a further description of the above technical solution:

[0023] Second springs are arranged on both sides of the first rack, the second springs are fixedly connected with the inner wall of the vertical plate and the fixed seat on both sides, respectively, a roller is connected with the vertical plate away from the first rack through a mounting bracket, a third conical block is arranged on the other side of the roller, and the third conical block is fixedly connected with the outer wall of the mounting plate away from the roller.

[0024] As a further description of the above technical solution:

[0025] The rotating shaft bottom end extends to the inside of the screw feeding unit and is provided with a cylinder, the cylinder is rotationally connected to the outer circumferential side of the screw end inside the screw feeding unit, the cylinder is fixedly connected with the screw cylinder inner wall of the screw feeding unit through a connecting block, the rotating shaft is rotationally connected inside the cylinder and the connecting block, a fourth gear is arranged on one side of the cylinder, the fourth gear is fixedly connected to the outer circumferential side of the rotating shaft, a second rack is meshingly connected on one side of the fourth gear, a circular block is fixedly connected to the side away from the fourth gear of the second rack, the circular block is slidingly sealed in the cylinder, and the circular block is arranged on the side away from the screw inside the screw feeding unit.

[0026] In summary, due to the adoption of the above technical scheme, the present application has the following beneficial effects:

[0027] 1、In the present application, the screw feeding unit will transport the plastic solution inside the plastic heating and mixing barrel to the inside of the injection port through the setting of the turbulence component, the plastic solution entering the inside of the injection port will continuously produce disturbance and mixing under the action of the second spiral groove, which can uniformly distribute the melt pressure inside the plastic solution, reduce the local high or low pressure area inside, and further reduce the pressure fluctuation, thereby assisting to improve the flow effect and flow stability during the injection molding process of the plastic solution, and assisting to ensure the uniformity of the temperature of the plastic solution center and the outside of the injection port, so that the plastic solution uniformly enters the inside of the mold cavity inside the movable die unit and contacts the inner wall of the movable die unit mold cavity, which can uniformly distribute the shear stress and assist to reduce the subsequent internal stress concentration phenomenon of the plastic product, thereby reducing the warping and cracking phenomenon of the product, and as the plastic solution continuously flows, the plastic solution flowing in the center part will act on the turbine and the chute to make the turbine rotate, and the turbine will further uniformize the stress distribution of the injection solution during the rotation process, reduce the internal stress phenomenon, further reduce the surface defects of the product, and greatly improve the production quality of the product.

[0028] 2、In the present application, the installation plate will drive the roller, the vertical plate and the first rack to move through the third conical block during the downward movement, the third gear drives the rotating shaft and the fourth gear to rotate, the second rack drives the circular block to move to the outside of the cylinder, at this time the circular block can provide pressure when the injection port is open to work, so as to assist to increase the overall injection speed of the plastic solution, when the closing plate is completely opened, the hydraulic cylinder continuously drives the installation plate, the first conical block and the third conical block to move downward, at this time the second rack will further move the circular block, further improving the overall injection speed of the plastic solution, thereby ensuring the filling speed and charging effect of the mold cavity inside the movable die unit, so as to ensure the overall injection quality of the product.

[0029] 3、The closed assembly is arranged in the application, when the injection molding is completed, the hydraulic cylinder drives the mounting plate and the first conical block to reset, at this time, the first spring drives the connecting plate, the hollow cylinder and the guide rod to reset, at this time, the closing plate can close the injection port, thereby reducing the subsequent plastic product gate mark, reducing the subsequent processing procedure of the product, and further improving the overall use performance of the product. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the overall three-dimensional structure schematic diagram of the application;

[0031] Figure 2 It is another perspective three-dimensional structure schematic diagram of the screw feeding unit and the fixed mold base in the application;

[0032] Figure 3 It is the internal three-dimensional structure schematic diagram of the fixed mold base and the fixed mold in the application;

[0033] Figure 4 It is the overall three-dimensional structure schematic diagram of the hollow cylinder and the guide rod in the application;

[0034] Figure 5 It is the three-dimensional structure schematic diagram of the annular block and the closing plate in the application;

[0035] Figure 6 It is another perspective three-dimensional structure schematic diagram of the auxiliary injection port in the application;

[0036] Figure 7 It is the internal three-dimensional structure schematic diagram of the injection port in the application;

[0037] Figure 8 It is the A place local amplification structure schematic diagram of the application; Figure 7

[0038] Figure 9 It is the partial three-dimensional structure schematic diagram of the pressure increasing assembly in the application;

[0039] Figure 10 It is the B place local amplification structure schematic diagram of the application; Figure 9

[0040] Legend:

[0041] ​​1, mounting table; 2, fixed seat; 3, screw feeding unit; 4, fixed mold base; 5, fixed mold; 6, injection port; 7, closing assembly; 701, hydraulic cylinder; 702, mounting plate; 703, first sliding groove; 704, first tapered block; 705, second tapered block; 706, connecting plate; 707, first spring; 708, hollow cylinder; 709, guide rod; 710, connecting rod; 711, first gear; 712, ring gear; 713, ring block; 714, second sliding groove; 715, closing plate; 8, turbulence assembly; 801, second spiral groove; 802, circular plate; 803, turbine; 804, inclined groove; 9, booster assembly; 901, connecting box; 902, rotating shaft; 903, third gear; 904, first rack; 905, vertical plate; 906, second spring; 907, roller; 908, third tapered block; 909, cylinder; 910, fourth gear; 911, second rack; 912, circular block; 10, auxiliary injection port; 11, movable mold unit. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] Please refer to Figures 1-10 The present application provides a technical solution: a forming mold for recycling plastic injection molding, comprising a mounting table 1, the top of the mounting table 1 is fixedly connected with a fixed seat 2 on one side, the fixed seat 2 is fixedly connected with a fixed mold base 4 on one side, the fixed mold base 4 is connected with a fixed mold 5 away from the fixed seat 2 on one side, the fixed mold 5, the fixed mold base 4 and the fixed seat 2 are provided with the same injection port 6 at the connection, the injection port 6 is provided with an auxiliary injection port 10 on one side, the injection port 6 and the auxiliary injection port 10 are provided with a closing assembly 7, the closing assembly 7 is provided with a booster assembly 9 on one side, and the injection port 6 is provided with a turbulence assembly 8 inside.

[0044] The turbulence assembly 8 comprises a circular plate 802 and a second spiral groove 801 located on the inner circumferential side of the injection port 6, the circular plate 802 is arranged on the side opposite to the auxiliary injection port 10, and the circular plate 802 is fixedly connected inside the injection port 6 through a fixing rod, one side of the circular plate 802 is provided with a turbine 803 arranged on the side opposite to the second spiral groove 801, the turbine 803 is tapered in cross-sectional shape, and a plurality of inclined grooves 804 are arranged in the circumferential direction inside the turbine 803, the auxiliary injection port 10 is located inside the fixed mold 5, the injection port 6 is provided with a screw feeding unit 3 on the side away from the auxiliary injection port 10, the screw feeding unit 3 is fixedly connected to the top of the mounting table 1 through a support frame, the auxiliary injection port 10 is provided with a movable mold unit 11 on the side away from the injection port 6, the movable mold unit 11 is slidably connected to the top of the mounting table 1, and a cavity is formed in the fixed mold 5 and communicates with the fixed mold seat 4 through a rectangular through hole.

[0045] Specific implementation: first, install the mounting table 1 to the appropriate position, and install the plastic heating mixing barrel on the top of the screw feeding unit 3, then fix the external moving unit and the movable mold unit 11, when injection molding is needed, first make the external moving unit drive the movable mold unit 11 to move towards the fixed mold 5, and then perform mold clamping, then the plastic solution in the plastic heating mixing barrel is transported into the injection port 6 by the screw feeding unit 3, the plastic solution entering the injection port 6 will continuously produce disturbance and mixing under the action of the second spiral groove 801, which can uniformly distribute the melt pressure in the plastic solution, reduce the local high or low pressure area in the plastic solution, and further reduce the pressure fluctuation, thereby assisting to improve the flow stability of the plastic solution during injection molding, and assisting to ensure the uniformity of the temperature of the plastic solution in the center and the outer side of the injection port 6, so that the plastic solution uniformly enters the mold cavity inside the movable mold unit 11, and contacts the inner wall of the mold cavity of the movable mold unit 11, which can uniformly distribute the shear stress and assist to reduce the internal stress concentration phenomenon of the subsequent plastic product, thereby reducing the warping and cracking phenomenon of the product, and as the plastic solution continuously flows, the plastic solution in the center part will act on the turbine 803 and the inclined groove 804 to make the turbine 803 rotate, and the turbine 803 will further uniformize the stress distribution of the injection solution during rotation, reduce the internal stress phenomenon, and further reduce the surface defects of the product, thereby greatly improving the production quality of the product.

[0046] The closed assembly 7 comprises a hydraulic cylinder 701, the bottom of which is fixedly connected with the top of the fixed mold base 4, the output shaft of the hydraulic cylinder 701 extends into the fixed mold base 4 and is fixedly connected with a mounting plate 702, the mounting plate 702 is T-shaped in cross section, one side of the bottom of the mounting plate 702 is fixedly connected with a first tapered block 704, the first tapered block 704 is provided with a second tapered block 705 away from one side of the mounting plate 702, the second tapered block 705 extends into the fixed mold 5 away from one side of the first tapered block 704 and is fixedly connected with a connecting plate 706, the second tapered block 705 and the connecting plate 706 are both slidingly connected in the fixed mold 5, the connecting plate 706 is fixedly connected with a first spring 707 away from one side of the second tapered block 705, the other side of the first spring 707 is fixedly connected with the inner wall of the fixed mold 5, a hollow cylinder 708 is arranged below the first spring 707, one end of the hollow cylinder 708 is fixedly connected with the connecting plate 706, a connecting rod 710 is arranged in the inner side of the hollow cylinder 708 away from the connecting plate 706, the connecting rod 710 is fixedly connected with a first gear 711 through a circular rod away from one side of the hollow cylinder 708, and the circular rod is fixedly connected with the inner wall of the fixed mold 5 through a support seat, a first spiral groove is formed in the outer side of the connecting rod 710, a guide rod 709 is arranged in the first spiral groove, and the guide rod 709 is fixedly connected with the inner wall of the hollow cylinder 708 away from one side of the first spiral groove, the first gear 711 is meshingly connected with an annular gear 712 at the bottom, the annular gear 712 is fixedly connected with an annular block 713 inside, a plurality of second sliding grooves 714 and a closing plate 715 are circumferentially arranged on one side of the annular block 713, the second sliding grooves 714 are located inside the annular block 713, the closing plate 715 is slidingly connected in the second sliding grooves 714 through a limiting rod, the annular block 713, the auxiliary injection port 10 and the injection port 6 are on the same axis, the auxiliary injection port 10 is T-shaped in cross section, and a first sliding groove 703 is formed in one side of the auxiliary injection port 10, the first sliding groove 703 is arranged on the side opposite to the closing plate 715, the first sliding groove 703 is hexagonal in cross section, and the closing plate 715 is slidingly connected in the first sliding groove 703 through a limiting sliding block.

[0047] Detailed Implementation: Simultaneously, hydraulic cylinder 701 is activated, driving mounting plate 702 and first conical block 704 downwards. During this downward movement, the first conical block 704 compresses the second conical block 705, connecting plate 706, and first spring 707. At this time, connecting plate 706 drives hollow cylinder 708 and guide rod 709 to move horizontally. During this movement, guide rod 709, under the action of the first spiral groove, drives connecting rod 710 and first gear 711 to rotate. Utilizing the linkage effect between first gear 711 and annular block 713, power is transmitted to annular block 713, causing it to rotate. During this movement, annular block 713, under the action of second slide groove 714, guide rod 709, limiting slider, and first slide groove 703, causes multiple sealing plates 715 to move away from the center of injection port 6, releasing the pressure on the injection port 6. The closed state of injection port 6 allows the plastic solution inside injection port 6 to be injected into the moving mold unit 11 through auxiliary injection port 10. After injection is completed, the hydraulic cylinder 701 drives the mounting plate 702 and the first conical block 704 to reset. At this time, the first spring 707 drives the connecting plate 706, the hollow cylinder 708 and the guide rod 709 to reset. At this time, the sealing plate 715 will seal the injection port 6, which helps to reduce the gate marks of subsequent plastic products, thereby reducing the subsequent processing steps of the product and further improving the overall performance of the product. Limiting guide rods can be set on both sides of the hydraulic cylinder 701 as needed, so that the bottom end of the limiting guide rod is fixedly connected to the top of the mounting plate 702 and the limiting guide rod is slidably connected inside the fixed mold base 4. The hydraulic cylinder 701 can be precisely controlled by an external oil pump and sensor. This technology is existing known technology, so this application will not elaborate further.

[0048] The booster assembly 9 comprises a connecting box 901, one side of the connecting box 901 is fixedly connected with the outer wall of the fixed seat 2, and the connecting box 901 is arranged at the side opposite to the screw feeding unit 3. Limiting through holes are formed at the joint of the connecting box 901, the fixed seat 2 and the mold seat 4, and the cross-sectional shape of the limiting through holes is T-shaped. A rotating shaft 902 is rotatably connected to one side in the connecting box 901. A third gear 903 is fixedly connected to the top side of the outer part of the rotating shaft 902. A first rack 904 is meshingly connected to one side of the third gear 903. The other end of the first rack 904 extends into the mold seat 4 and is fixedly connected with a vertical plate 905. The vertical plate 905 and the first rack 904 are slidingly connected in the limiting through hole. Second springs 906 are arranged on both sides of the first rack 904. The two sides of the second springs 906 are fixedly connected with the inner wall of the fixed seat 2 and the vertical plate 905 respectively. A roller 907 is connected to one side of the vertical plate 905 away from the first rack 904 through a mounting bracket. A third tapered block 908 is arranged on the other side of the roller 907. The third tapered block 908 is fixedly connected with the outer wall of the mounting plate 702 away from the roller 907. The bottom end of the rotating shaft 902 extends into the screw feeding unit 3 and is provided with a cylinder 909. The cylinder 909 is rotatably connected to the outer peripheral side of the screw end part in the screw feeding unit 3. The cylinder 909 is fixedly connected with the inner wall of the screw cylinder of the screw feeding unit 3 through a connecting block. The rotating shaft 902 is rotatably connected in the cylinder 909 and the connecting block. A fourth gear 910 is arranged on one side in the cylinder 909. The fourth gear 910 is fixedly connected with the outer peripheral side of the rotating shaft 902. A second rack 911 is meshingly connected to one side of the fourth gear 910. A circular block 912 is fixedly connected with one side of the second rack 911 away from the fourth gear 910. The circular block 912 is slidingly sealed in the cylinder 909 and is arranged on the side away from the screw in the screw feeding unit 3.

[0049] CUTTING-EDGE: The installation plate 702 will drive the third tapered block 908 to move the roller 907, the vertical plate 905, the second spring 906 and the first rack 904 during the downward movement, and the power will be transmitted to the third gear 903 through the linkage effect between the first rack 904 and the third gear 903, so that the third gear 903 drives the rotating shaft 902 to rotate, and then the power will be transmitted to the second rack 911 through the linkage effect between the rotating shaft 902 and the fourth gear 910, so that the second rack 911 drives the circular block 912 to move outward of the cylinder 909, at this time the circular block 912 can provide pressure when the injection port 6 is open to work, to help increase the overall injection speed of the plastic solution, when the closing plate 715 is completely opened, the hydraulic cylinder 701 continuously drives the installation plate 702, the first tapered block 704 and the third tapered block 908 to move downward, at this time the second tapered block 705 will not move, and the force of the third tapered block 908 will further move the roller 907 and the first rack 904, at this time the second rack 911 will further move the circular block 912, further improving the overall injection speed of the plastic solution, thereby ensuring the filling speed and charging effect of the cavity inside the movable die unit 11, thereby ensuring the overall injection quality of the product, wherein the diameters of the cylinder 909 and the circular block 912 can be set according to actual needs, and the second rack 911 can be slidably connected inside the screw inside the cylinder 909 and the screw feeding unit 3.

[0050] WORKING PRINCIPLE: In use, first install the installation table 1 to the appropriate position, and install the plastic heating mixing barrel on the top of the screw feeding unit 3, then fix the external moving unit with the movable die unit 11, when injection is needed, first make the external moving unit drive the movable die unit 11 to move towards the fixed die 5, and then perform mold clamping, after that, the plastic heating mixing barrel inside the screw feeding unit 3 will deliver the plastic solution to the injection port 6, the plastic solution inside the injection port 6 will constantly be disturbed and mixed under the action of the second spiral groove 801, so that the melt pressure inside the plastic solution can be uniformly distributed, and as the plastic solution constantly flows, the plastic solution in the center part will act on the turbine 803 and the chute 804, so that the turbine 803 rotates, and the turbine 803 further uniformizes the stress distribution of the injection solution during the rotation;

[0051] Meanwhile, the hydraulic cylinder 701 is started, the mounting plate 702 and the first tapered block 704 are driven to move downwards by the hydraulic cylinder 701, and the first tapered block 704 extrudes the second tapered block 705, the connecting plate 706 and the first spring 707 during the movement downwards, at the moment, the connecting plate 706 drives the hollow cylinder 708 and the guide rod 709 to move horizontally, the guide rod 709 drives the connecting rod 710 and the first gear 711 to rotate under the action of the first spiral groove during the movement, the power is transmitted to the annular block 713 by the linkage effect between the first gear 711 and the annular block 713, the annular block 713 is rotated, and the plurality of sealing plates 715 are moved away from the center of the injection port 6 under the action of the second sliding groove 714, the guide rod 709, the limiting sliding block and the first sliding groove 703 during the movement of the annular block 713, the sealing state of the injection port 6 is released, and the plastic solution in the injection port 6 is injected into the movable die unit 11 through the auxiliary injection port 10;

[0052] During the movement of the mounting plate 702 downwards, the third tapered block 908 moves the roller 907, the vertical plate 905, the second spring 906 and the first rack 904, the power is transmitted to the third gear 903 by the linkage effect between the first rack 904 and the third gear 903, the third gear 903 drives the rotating shaft 902 to rotate, then the power is transmitted to the second rack 911 by the linkage effect between the rotating shaft 902 and the fourth gear 910, the second rack 911 drives the circular block 912 to move outward of the cylinder 909, at the moment, the circular block 912 can provide pressure when the injection port 6 is open, when the sealing plate 715 is completely opened, the mounting plate 702, the first tapered block 704 and the third tapered block 908 are continuously driven to move downwards by the hydraulic cylinder 701, at the moment, the second tapered block 705 does not move, and the force of the third tapered block 908 further moves the roller 907 and the first rack 904, at the moment, the second rack 911 further moves the circular block 912, and the overall injection speed of the plastic solution is further improved, after the injection is completed, the mounting plate 702 and the first tapered block 704 are reset by the hydraulic cylinder 701, at the moment, the connecting plate 706, the hollow cylinder 708 and the guide rod 709 are reset by the first spring 707, at the moment, the sealing plate 715 seals the injection port 6, and the gate mark of the subsequent plastic product is reduced, and the use is convenient.

[0053] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A molding die for injection molding recycled plastics, comprising a mounting platform (1), characterized in that: A fixed base (2) is fixedly connected to one side of the top of the mounting platform (1). A fixed mold base (4) is fixedly connected to one side of the fixed base (2). A fixed mold (5) is connected to the side of the fixed mold base (4) away from the fixed base (2). The fixed mold (5), the fixed mold base (4) and the fixed base (2) are connected to the same injection port (6). An auxiliary injection port (10) is provided on one side of the injection port (6). A sealing component (7) is provided between the injection port (6) and the auxiliary injection port (10). A pressure boosting component (9) is provided on one side of the sealing component (7). A flow turbulence component (8) is provided inside the injection port (6). The turbulence assembly (8) includes a circular plate (802) and a second spiral groove (801). The second spiral groove (801) is located on the inner circumference of the injection port (6). The circular plate (802) is disposed on the side opposite to the auxiliary injection port (10), and the circular plate (802) is fixedly connected to the inside of the injection port (6) by a fixing rod. A turbine (803) is disposed on one side of the circular plate (802). The turbine (803) is disposed on the side opposite to the second spiral groove (801). The cross-sectional shape of the turbine (803) is set as conical, and multiple inclined grooves (804) are arranged in a circular array inside the turbine (803). The enclosed assembly (7) includes a hydraulic cylinder (701), the bottom of which is fixedly connected to the top of the fixed mold base (4). One end of the output shaft of the hydraulic cylinder (701) extends into the interior of the fixed mold base (4) and is fixedly connected to an mounting plate (702). The mounting plate (702) has a T-shaped cross-section. A first conical block (704) is fixedly connected to one side of the bottom of the mounting plate (702). A second conical block (705) is provided on the side of the first conical block (704) away from the mounting plate (702). The second conical block (705) extends into the interior of the fixed mold (5) on the side away from the first conical block (704) and is fixedly connected to a connecting plate (706). Both the second conical block (705) and the connecting plate (706) are slidably connected inside the fixed mold (5). A first spring (707) is fixedly connected to the side of the connecting plate (706) away from the second conical block (705). The other side of the first spring (707) is fixedly connected to the inner wall of the fixed mold (5). A hollow cylinder (708) is provided below the first spring (707). One end of the hollow cylinder (708) is fixedly connected to the connecting plate (706). A connecting rod (710) is provided on the inner side of the hollow cylinder (708) away from the connecting plate (706). A first gear (711) is fixedly connected to the side of the connecting rod (710) away from the hollow cylinder (708) through a round rod. The round rod is fixedly connected to the inner wall of the fixed mold (5) through a support seat. A first spiral groove is opened on the outer side of the inner side of the connecting rod (710). A guide rod (709) is provided inside the first spiral groove. The side away from the first spiral groove is fixedly connected to the inner wall of the hollow cylinder (708). The bottom of the first gear (711) is meshed with a ring gear (712). The ring gear (712) is fixedly connected to an annular block (713). A plurality of second slide grooves (714) and a closing plate (715) are distributed in a circular array on one side of the annular block (713). The second slide groove (714) is located inside the annular block (713). The closing plate (715) is slidably connected inside the second slide groove (714) by a limiting rod. The booster assembly (9) includes a connecting box (901). One side of the connecting box (901) is fixedly connected to the outer wall of the fixed seat (2), and the connecting box (901) is located on the side opposite to the screw feeding unit (3). Limiting through holes are provided at the junctions of the connecting box (901), the fixed seat (2), and the fixed mold base (4). The cross-sectional shape of the limiting through holes is T-shaped. A rotating shaft (902) is rotatably connected to one side of the connecting box (901). A third gear (903) is fixedly connected to the top side of the rotating shaft (902). A first rack (904) is meshed on one side of the third gear (903). The other end of the first rack (904) extends... A vertical plate (905) extends into the fixed mold base (4) and is fixedly connected to it. The vertical plate (905) and the first rack (904) are slidably connected inside the limiting through hole. A second spring (906) is provided on both sides of the first rack (904). The two sides of the second spring (906) are fixedly connected to the inner wall of the vertical plate (905) and the fixed base (2) respectively. A roller (907) is connected to the side of the vertical plate (905) away from the first rack (904) through the mounting bracket. A third conical block (908) is provided on the other side of the roller (907). The side of the third conical block (908) away from the roller (907) is fixedly connected to the outer wall of the mounting plate (702).

2. The molding die for injection molding recycled plastics according to claim 1, characterized in that: The auxiliary injection port (10) is located inside the fixed mold (5). A screw feeding unit (3) is provided on the side of the injection port (6) away from the auxiliary injection port (10). The bottom of the screw feeding unit (3) is fixedly connected to the top of the mounting platform (1) through a support frame. A moving mold unit (11) is provided on the side of the auxiliary injection port (10) away from the injection port (6). The moving mold unit (11) is slidably connected to the top of the mounting platform (1). A cavity is opened inside the fixed mold (5). The cavity is connected to the fixed mold base (4) through a rectangular through hole.

3. The molding die for injection molding recycled plastics according to claim 2, characterized in that: The annular block (713), auxiliary injection port (10) and injection port (6) are on the same axis. The cross-sectional shape of the auxiliary injection port (10) is T-shaped, and a first groove (703) is provided on one side inside the auxiliary injection port (10). The first groove (703) is located on the side opposite to the closed plate (715). The cross-sectional shape of the first groove (703) is regular hexagonal. The closed plate (715) is slidably connected inside the first groove (703) by a limiting slider.

4. A molding die for injection molding recycled plastics according to claim 3, characterized in that: The bottom end of the rotating shaft (902) extends into the screw feeding unit (3) and is provided with a cylinder (909). The cylinder (909) is rotatably connected to the outer periphery of the screw end inside the screw feeding unit (3). The cylinder (909) is fixedly connected to the inner wall of the screw feeding unit (3) through a connecting block. The rotating shaft (902) is rotatably connected to the cylinder (909) and the connecting block. A fourth gear (910) is provided on one side inside the cylinder (909). The fourth gear (910) is fixedly connected to the outer periphery of the rotating shaft (902), and a second rack (911) is meshed on one side of the fourth gear (910). A circular block (912) is fixedly connected on the side of the second rack (911) away from the fourth gear (910). The circular block (912) is slidably sealed inside the cylinder (909), and the circular block (912) is located on the side away from the screw inside the screw feeding unit (3).

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