Injection mold capable of adaptively adjusting material flow speed

Abstract

The invention relates to the technical field of injection molds, in particular to an injection mold capable of adaptively adjusting material flow speed, which comprises two groups of injection molding pipes mounted on a mold groove, a hose is connected between the two groups of injection molding pipes, a baffle is arranged on one side of the hose, and air inlet pipes are mounted on two sides of the mold groove. One end of the air inlet pipe is connected with multiple sets of guide pipes A, and pressure release valves A are arranged on the outer sides of the multiple sets of guide pipes A. When the outer side of the injection molding pipe is cooled, the injection molding pipe can be automatically heated, the injection molding amount is reduced, when the temperature of the outer side of the injection molding pipe rises to a certain numerical value, heating can be automatically stopped, and the injection molding flowability is improved; therefore, the problems of sudden viscosity increase caused by low temperature of the melt at low temperature, material blockage, screw overload and the like are avoided, material shortage of products and surface cold material spots caused by insufficient filling at low temperature are reduced, overheat degradation of the melt at high temperature is avoided, and the filling efficiency is improved by utilizing melt fluidity at proper temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and specifically relates to an injection mold for adaptively adjusting the material flow rate. Background Art

[0002] With the continuous progress of the manufacturing industry, injection molding, as an important plastic processing method, is widely used in various fields such as automobiles, electronics, household appliances, and medical treatment. In order to meet the high-precision, high-quality, and high-performance requirements of plastic products in different fields, injection molding technology is also constantly developing towards automation, intelligence, and precision.

[0003] During the injection process of traditional injection molds, the injection temperature environment has a certain impact on injection. If it is necessary to adjust the material flow rate according to the temperature during injection, it is necessary for workers to continuously manually adjust, which increases the complexity of the production process and reduces the production efficiency. Summary of the Invention

[0004] When the outside of the injection pipe is cooled in the present invention, the injection pipe will be automatically heated, and the injection volume will be reduced. When the temperature on the outside of the injection pipe rises to a certain value, the heating will automatically stop, and the fluidity of the injection will be increased. Thus, at low temperatures, it is possible to prevent the melt from having a sudden increase in viscosity due to low temperature, avoid problems such as material blockage and screw overload, and reduce product material shortage and surface cold material spots caused by insufficient filling at low temperatures. At high temperatures, it is possible to avoid overheating and degradation of the melt, and utilize the melt fluidity at an appropriate temperature to improve the filling efficiency.

[0005] To achieve the above object, the present invention provides the following technical solution: an injection mold for adaptively adjusting the material flow rate, including an injection pipe installed on a mold groove. There are two groups of the injection pipes, and a hose is connected between the two groups of injection pipes. A baffle is arranged on one side of the hose. Air inlet pipes are installed on both sides of the mold groove. One end of each air inlet pipe is connected with a plurality of guide pipes A. Pressure relief valves A are arranged on the outside of the plurality of guide pipes A. The other ends of the plurality of guide pipes A are connected with a fixing plate. A connecting block is arranged inside the fixing plate. A plurality of convex blocks are arranged on both sides of the mold groove; A heating groove is installed on the outside of the injection pipe. A storage pipe is installed on one side of the heating groove. A through valve is arranged at one end of the storage pipe. The heating groove communicates with a guide pipe B at one end. A pressure relief valve B is installed on the outside of the guide pipe B. One end of the guide pipe B is connected with a pressing block; A pressure relief pipe is installed at the other end of the heating groove. A rotating blade is arranged at the output end of the pressure relief pipe. One end of the rotating blade is connected with a folding rod. The two heating grooves are located outside the two injection pipes.

[0006] Preferably, both ends of the baffle are fixedly connected to the injection pipe. One end of the air inlet pipe is connected to a hot air blower, and a connecting pipe B is connected to the outside of the air inlet pipe.

[0007] Preferably, a push rod A is movably connected inside the guide pipe A. One end of the push rod A located outside the guide pipe A is connected to a fixing plate. Two spring rods are connected to both ends of the connecting block, and the connecting block is connected to the fixing plate through the two spring rods.

[0008] Preferably, one end of the push rod A located inside the guide pipe A is connected to a spring A, and the other end of the spring A is connected to the inner wall of the guide pipe A.

[0009] Preferably, heating grooves are provided on the outer sides of both injection pipes. The two heating grooves are connected by multiple communicating pipes. A push rod A is movably connected inside the storage pipe.

[0010] Preferably, one end of the through valve communicates with the upper heating groove. The internal dimension of the through valve matches the outer diameter of the push rod A. The other end of the through valve is connected to a connecting pipe B.

[0011] Preferably, the lower end of the lower heating groove is connected to a connecting pipe C. The other end of the connecting pipe C is connected to a guide pipe B. A push rod B is movably connected inside the guide pipe B. One end of the push rod B located inside the guide pipe B is connected to a spring B, and the other end of the spring B is connected to the inner wall of the guide pipe B. One end of the push rod B located outside the guide pipe B is connected to a pressing block.

[0012] Preferably, a bracket is connected to the outside of the lower heating groove. The rotating blade is rotatably connected to the bracket.

[0013] Preferably, the lower end of the axis of the rotating blade is connected to a rotating shaft. The rotating shaft penetrates through the bracket and extends to the lower end. Multiple folding rods are connected to the outside of the rotating shaft.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: When the present invention is in use, it will generate knocking vibrations on the mold cavity. The generated vibrations will be transmitted to the inside of the mold cavity, causing shear action in the molten material, destroying the entanglement structure between molecules, reducing the flow resistance, improving the filling ability of the thin-walled area. At the same time, the vibrations can disperse the tiny bubbles in the molten material, promote the replenishment of the molten material to the shrinkage area, and reduce the probability of shrinkage cavity defects.

[0015] When the present invention cools the outside of the injection tube, it will automatically heat the injection tube and reduce the injection volume. When the temperature on the outside of the injection tube rises to a certain value, it will automatically stop heating and increase the fluidity of the injection, so as to prevent the melt from having a sudden increase in viscosity due to low temperature at low temperature, avoid problems such as material blockage and screw overload, and at the same time reduce the material shortage and surface cold material spots of the product caused by insufficient filling at low temperature. At high temperature, it avoids overheating and degradation of the melt, utilizes the melt fluidity at an appropriate temperature to improve the filling efficiency, and at the same time controls the temperature fluctuation range within a stable range, makes the melt viscosity stable, and avoids problems such as warping or internal stress concentration of the product due to uneven cooling.

[0016] When the present invention heats the injection tube, it will generate a certain knocking vibration force on the injection through the folding rod, so that the mechanical vibration generated by the knocking destroys the air heat insulation layer on the surface of the injection tube, makes the heat of the heating coil more directly transferred to the melt in the tube, improves the heating efficiency, and at the same time, condensate blocks are easily formed at the corners or threads of the injection tube at low temperature. The knocking vibration can break up the lumps by mechanical force and prevent material blockage to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The first overall structural schematic diagram of the present invention; Figure 2 The second overall structural schematic diagram of the present invention; Figure 3 The first structural sectional view of the present invention; Figure 4 The second structural sectional view of the present invention; Figure 5 The first partial structural diagram of the present invention; Figure 6 The second partial structural diagram of the present invention; Figure 7 The first partial structural sectional view of the present invention; Figure 8 The second partial structural sectional view of the present invention; Figure 9 For the present invention Figure 4 The enlarged view of the structure at A in the present invention; Figure 10 For the present invention Figure 5 The enlarged view of the structure at B in the present invention.

[0018] In the figure: 1, mold groove; 2, injection pipe; 3, hose; 4, baffle; 5, intake pipe; 6, guide pipe A; 7, push rod A; 8, spring A; 9, pressure relief valve A; 10, fixing plate; 11, spring rod; 12, connecting block; 13, convex block; 14, heating groove; 15, connecting pipe; 16, storage pipe; 17, ejector rod A; 18, through valve; 19, connecting pipe B; 20, connecting pipe C; 21, guide pipe B; 22, push rod B; 23, spring B; 24, pressure relief valve B; 25, pressing block; 26, pressure relief pipe; 27, rotating blade; 28, rotating shaft; 29, folding rod. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0020] Referring to Figures 1-10 , the present invention provides an injection mold for adaptively adjusting the material flow rate, including an injection pipe 2 installed on a mold groove 1. There are two groups of injection pipes 2. A hose 3 is connected between the two groups of injection pipes 2. A baffle 4 is arranged on one side of the hose 3. Intake pipes 5 are installed on both sides of the mold groove 1. One end of the intake pipe 5 is connected with multiple groups of guide pipes A6. Pressure relief valves A9 are arranged on the outer sides of the multiple groups of guide pipes A6. The other ends of the multiple groups of guide pipes A6 are connected with a fixing plate 10. A connecting block 12 is arranged inside the fixing plate 10. Multiple groups of convex blocks 13 are arranged on both sides of the mold groove 1; A heating groove 14 is installed on the outer side of the injection pipe 2. A storage pipe 16 is installed on one side of the heating groove 14. A through valve 18 is arranged at one end of the storage pipe 16. One end of the heating groove 14 communicates with a guide pipe B21. A pressure relief valve B24 is installed on the outer side of the guide pipe B21. One end of the guide pipe B21 is connected with a pressing block 25; A pressure relief pipe 26 is installed at the other end of the heating groove 14. A rotating blade 27 is arranged at the output end of the pressure relief pipe 26. One end of the rotating blade 27 is connected with a folding rod 29. The two groups of heating grooves 14 are located on the outer sides of the two groups of injection pipes 2.

[0021] In an alternative embodiment, both ends of the baffle 4 are fixedly connected to the injection pipe 2. One end of the intake pipe 5 is connected to a hot air blower. A connecting pipe B19 is connected to the outer side of the intake pipe 5. When using the device, the staff turns on the hot air blower, so that the hot air blower will transport hot air into the guide pipe A6 through the intake pipe 5. And when the intake pipe 5 transports hot air, part of the hot air will enter the connecting pipe B19.

[0022] In an alternative embodiment, a push rod A7 is movably connected inside the guide tube A6. One end of the push rod A7 located outside the guide tube A6 is connected to the fixing plate 10. Both ends of the connecting block 12 are connected with two groups of spring rods 11. The connecting block 12 is connected to the fixing plate 10 through the two groups of spring rods 11. After the hot air enters the inside of the guide tube A6, the hot air will squeeze the push rod A7 to push it outwards. When the guide tube A6 is pushed outwards, it will synchronously push the fixing plate 10 to move outwards. When the fixing plate 10 moves outwards, it will synchronously drive the connecting block 12 to move. As the connecting block 12 moves, it will contact the convex block 13, so that the convex block 13 will squeeze the connecting block 12. As the connecting block 12 passes by a group of convex blocks 13, the connecting block 12 will quickly reset by the force of the spring rod 11, and when the connecting block 12 resets, it will contact the next group of convex blocks 13, thereby generating a knocking vibration. The generated vibration will be transmitted to the inside of the mold cavity 1, causing a shearing effect in the molten material, destroying the entanglement structure between molecules, reducing the flow resistance, improving the filling ability of the thin-wall area. At the same time, the vibration can disperse the tiny bubbles in the molten material, promote the molten material to refill the shrinkage area, and reduce the probability of shrinkage cavity defects.

[0023] In an alternative embodiment, one end of the push rod A7 located inside the guide tube A6 is connected with a spring A8, and the other end of the spring A8 is connected with the inner wall of the guide tube A6. After the push rod A7 moves to a certain position, the pressure relief valve A9 will be exposed, so that the air pressure inside the guide tube A6 will be discharged through the pressure relief valve A9. After the air pressure inside the guide tube A6 is relieved, the push rod A7 will quickly reset by the force of the spring A8, and thus vibrate the outside of the mold cavity 1 reciprocally.

[0024] In an alternative embodiment, heating grooves 14 are provided on the outside of both groups of injection tubes 2. The two groups of heating grooves 14 are connected by a plurality of connecting pipes 15. A push rod A17 is movably connected inside the storage tube 16, and mercury is stored inside the storage tube 16. When heated, it will push the push rod A17 to move upwards. When the heating groove 14 cools down, as the mercury shrinks, the push rod A17 will synchronously descend.

[0025] In an alternative embodiment, one end of the through valve 18 is connected to the heating tank 14 located at the upper end. The internal dimension of the through valve 18 matches the outer diameter of the ejector rod A17. The other end of the through valve 18 is connected to the connecting pipe B19. When the temperature of the heating tank 14 is relatively low, due to the descent of the ejector rod A17, the ejector rod A17 will be disengaged from the inside of the through valve 18. After the ejector rod A17 is disengaged from the inside of the through valve 18, as hot air enters the inside of the through valve 18 through the connecting pipe B19, at this time the ejector rod A17 is not inside the through valve 18, so the hot air will enter the inside of the upper heating tank 14. After the hot air enters the inside of the upper heating tank 14, it will transfer the hot air to the inside of the lower heating tank 14 through multiple sets of connecting pipes 15. When the temperature inside the heating tank 14 rises to a certain value, the mercury will expand, thereby pushing the ejector rod A17 to rise. After the ejector rod A17 rises, it will enter the inside of the through valve 18, thereby blocking the inside of the through valve 18, and then blocking the entry of hot air, preventing the material inside the injection pipe 2 from being dried out due to excessive heat.

[0026] In an alternative embodiment, the lower end of the heating tank 14 located at the lower end is connected to a connecting pipe C20. The other end of the connecting pipe C20 is connected to a guide pipe B21. A push rod B22 is movably connected inside the guide pipe B21. One end of the push rod B22 located inside the guide pipe B21 is connected to a spring B23. The other end of the spring B23 is connected to the inner wall of the guide pipe B21. The end of the push rod B22 located outside the guide pipe B21 is connected to a pressing block 25. After the hot air enters the inside of the lower heating tank 14, part of the hot air will enter the inside of the guide pipe B21 through the connecting pipe C20. After the hot air enters the inside of the guide pipe B21, it will push the push rod B22 outwards. After the push rod B22 is pushed out, it will simultaneously push the pressing block 25 to move towards one end. As the pressing block 25 moves, it will contact the hose 3, thereby squeezing the hose 3 to contract, and then reducing the fluidity of the injection. At the same time, combined with the above, after the ejector rod A17 blocks the inside of the through valve 18, as the hot air entering the inside of the guide pipe B21 is discharged through the pressure relief valve B24, the push rod B22 will be reset by the spring B23. When the spring B23 is reset, the hose 3 will expand and reset synchronously, so that when the outside of the injection pipe 2 is cooled, it will automatically heat the injection pipe 2 and reduce the injection volume. When the temperature outside the injection pipe 2 rises to a certain value, it will automatically stop heating and increase the fluidity of the injection. Thus, at low temperatures, it prevents the melt from having a sudden increase in viscosity due to low temperature, avoiding problems such as material blockage and screw overload, and at the same time reducing product material shortage and surface cold material spots caused by insufficient filling at low temperatures. At high temperatures, it avoids overheating degradation of the melt, utilizes the melt fluidity at a suitable temperature to improve the filling efficiency, and at the same time controls the temperature fluctuation range within a stable range to make the melt viscosity stable, avoiding problems such as warping or internal stress concentration of the product due to uneven cooling.

[0027] In an optional embodiment, a bracket is connected to the outer side of the heating tank 14 at the lower end, and the rotating blades 27 are rotatably connected to the bracket. After the hot air enters the interior of the heating tank 14 at the lower end, the remaining part will be discharged through the pressure relief pipe 26. After being discharged, the wind force output by the pressure relief pipe 26 will blow the rotating blades 27 to rotate on the bracket.

[0028] In an optional embodiment, a rotating shaft 28 is connected to the lower end of the axis of the rotating blade 27. The rotating shaft 28 extends through the bracket to the lower end. A plurality of folding rods 29 are connected to the outer side of the rotating shaft 28. When the rotating blade 27 rotates, the rotating shaft 28 is synchronously driven to rotate. When the rotating shaft 28 rotates, the plurality of folding rods 29 are synchronously driven to rotate. When the folding rods 29 rotate, they contact the injection molding tube 2. As the folding rods 29 rotate, the folding rods 29 will automatically fold to prevent jamming. When the folding rods 29 contact the injection molding tube 2, a certain knocking vibration force is generated on the injection molding tube 2, so that the mechanical vibration generated by the knocking destroys the air insulation layer on the surface of the injection molding tube 2, so that the heat of the heating coil is more directly transferred to the molten material in the tube, thereby improving the heating efficiency. At the same time, when the injection molding tube 2 is low in temperature, it is easy to form condensed material blocks at the corners or threads. The knocking vibration can break up the lumps through mechanical force, thereby preventing blockage to a certain extent.

[0029] Working principle: When using the equipment, the staff turns on the hot air blower, so that the hot air blower will convey the hot air to the inside of the guide pipe A6 through the air inlet pipe 5, and when the hot air is conveyed by the air inlet pipe 5, part of the hot air will enter the inside of the connecting pipe B19; After the hot air enters the guide tube A6, the hot air will squeeze the push rod A7 and push it outward. When the guide tube A6 is pushed outward, it will simultaneously push the fixed plate 10 to move outward. When the fixed plate 10 moves outward, it will simultaneously drive the connecting block 12 to move. As the connecting block 12 moves, it will contact the protrusion 13, so that the protrusion 13 will squeeze the connecting block 12. As the connecting block 12 passes through a group of protrusions 13, the connecting block 12 will be quickly reset by the force of the spring rod 11, and when the connecting block 12 is reset, it will contact the next group of protrusions 13, thereby generating knocking vibration. The generated vibration will be transmitted to the inside of the mold groove 1. After the push rod A7 moves to a certain position, the pressure relief valve A9 will be exposed, so that the air pressure inside the guide tube A6 will be released through the pressure relief valve A9. After the pressure inside the guide tube A6 is released, the push rod A7 will be quickly reset by the force of the spring A8, thereby reciprocatingly vibrating the outside of the mold groove 1. The storage tube 16 stores mercury inside. When heated, it will push the ejector rod A17 to move upward. When the heating tank 14 cools down and the mercury contracts, the ejector rod A17 will synchronously descend. When the temperature of the heating tank 14 is relatively low, due to the descent of the ejector rod A17, the ejector rod A17 will disengage from the inside of the on-off valve 18. After the ejector rod A17 disengages from the inside of the on-off valve 18, when hot air enters the inside of the on-off valve 18 through the connecting pipe B19, at this time the ejector rod A17 is not inside the on-off valve 18, so the hot air will enter the upper heating tank 14. After the hot air enters the upper heating tank 14, it will transfer the hot air to the lower heating tank 14 through multiple sets of communicating pipes 15. When the temperature inside the heating tank 14 rises to a certain value, the mercury will expand, thus pushing the ejector rod A17 to rise. After the ejector rod A17 rises, it will enter the inside of the on-off valve 18, thereby blocking the inside of the on-off valve 18, and then blocking the entry of hot air. After the hot air enters the lower heating tank 14, part of the hot air will enter the guide pipe B21 through the connecting pipe C20. After the hot air enters the guide pipe B21, it will push the push rod B22 outwards. After the push rod B22 is pushed out, it will synchronously move the pressing block 25 towards one end. As the pressing block 25 moves, it will contact the hose 3, thereby squeezing the hose 3 to contract, and then reducing the fluidity of the injection molding. After the ejector rod A17 blocks the inside of the on-off valve 18, as the hot air entering the guide pipe B21 is discharged through the pressure relief valve B24, the push rod B22 will reset through the spring B23. When the spring B23 resets, the hose 3 will synchronously expand and reset, so that when the outside of the injection molding pipe 2 cools, it will automatically heat the injection molding pipe 2 and reduce the injection volume. When the temperature on the outside of the injection molding pipe 2 rises to a certain value, it will automatically stop heating and increase the fluidity of the injection molding After the hot air enters the lower heating tank 14, the remaining part will be discharged through the pressure relief pipe 26. After the discharge, the wind force output by the pressure relief pipe 26 will blow the rotating blade 27 to rotate on the bracket. When the rotating blade 27 rotates, it will synchronously drive the rotating shaft 28 to rotate. When the rotating shaft 28 rotates, it will synchronously drive multiple sets of folding rods 29 to rotate. When the folding rods 29 rotate, they will contact the injection molding pipe 2, and as the folding rods 29 rotate, the folding rods 29 will automatically fold, thus preventing jamming. When the folding rods 29 contact the injection molding pipe 2, they will generate a certain knocking vibration force on the injection molding pipe 2.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold for adaptively adjusting the material flow rate, comprising an injection pipe (2) installed on a mold groove (1), characterized in that, There are two sets of the injection molding pipes (2). A hose (3) is connected between the two sets of the injection molding pipes (2). A baffle (4) is arranged on one side of the hose (3). Air inlet pipes (5) are installed on both sides of the mold groove (1). One end of each air inlet pipe (5) is connected with multiple sets of guide pipes A (6). Pressure relief valves A (9) are arranged on the outer sides of the multiple sets of guide pipes A (6). The other ends of the multiple sets of guide pipes A (6) are connected with a fixing plate (10). A connecting block (12) is arranged inside the fixing plate (10). Multiple convex blocks (13) are arranged on both sides of the mold groove (1); A heating groove (14) is installed on the outer side of the injection molding pipe (2). A storage pipe (16) is installed on one side of the heating groove (14). A through valve (18) is arranged at one end of the storage pipe (16). The heating groove (14) communicates with a guide pipe B (21) at one end. A pressure relief valve B (24) is installed on the outer side of the guide pipe B (21). One end of the guide pipe B (21) is connected with a pressing block (25); A pressure relief pipe (26) is installed at the other end of the heating groove (14). A rotating blade (27) is arranged at the output end of the pressure relief pipe (26). One end of the rotating blade (27) is connected with a folding rod (29). The two heating grooves (14) are located on the outer sides of the two injection molding pipes (2).

2. The injection mold for adaptively adjusting the material flow rate according to claim 1, characterized in that, Both ends of the baffle (4) are fixedly connected with the injection molding pipe (2). One end of the air inlet pipe (5) is connected with a hot air blower. A connecting pipe B (19) is connected to the outer side of the air inlet pipe (5).

3. An injection mold for adaptively adjusting the material flow rate according to claim 1, characterized in that, A push rod A (7) is movably connected inside the guide pipe A (6). One end of the push rod A (7) located outside the guide pipe A (6) is connected with the fixing plate (10). Two spring rods (11) are connected to both ends of the connecting block (12). The connecting block (12) is connected with the fixing plate (10) through the two spring rods (11).

4. An injection mold for adaptively adjusting the material flow rate according to claim 3, wherein, One end of the push rod A (7) located inside the guide pipe A (6) is connected with a spring A (8). The other end of the spring A (8) is connected with the inner wall of the guide pipe A (6).

5. An injection mold for adaptively adjusting the material flow rate according to claim 1, characterized in that, The heating grooves (14) are arranged on the outer sides of the two injection molding pipes (2). The two heating grooves (14) are connected through multiple communicating pipes (15). A push rod A (17) is movably connected inside the storage pipe (16).

6. An injection mold for adaptively adjusting the material flow rate according to claim 1, wherein, One end of the through valve (18) communicates with the upper heating groove (14). The internal dimension of the through valve (18) matches the outer diameter of the push rod A (17). The other end of the through valve (18) is connected with the connecting pipe B (19).

7. An injection mold for adaptively adjusting the material flow rate according to claim 1, characterized in that, The lower heating groove (14) is connected with a connecting pipe C (20) at the lower end. The other end of the connecting pipe C (20) is connected with the guide pipe B (21). A push rod B (22) is movably connected inside the guide pipe B (21). One end of the push rod B (22) located inside the guide pipe B (21) is connected with a spring B (23). The other end of the spring B (23) is connected with the inner wall of the guide pipe B (21). One end of the push rod B (22) located outside the guide pipe B (21) is connected with the pressing block (25).

8. An injection mold for adaptively adjusting the material flow rate according to claim 1, characterized in that, A bracket is connected to the outside of the heating tank (14) at the lower end, and the rotating blade (27) is rotatably connected to the bracket.

9. An injection mold for adaptively adjusting the material flow rate according to claim 1, wherein, A rotating shaft (28) is connected to the lower end of the axis of the rotating blade (27). The rotating shaft (28) passes through the bracket and extends to the lower end, and multiple folding rods (29) are connected to the outside of the rotating shaft (28).

Images