Injection mechanism of injection molding machine and use method of injection mechanism

Abstract

The invention belongs to the technical field of injection molding machines, and particularly relates to an injection mechanism of an injection molding machine and a use method of the injection mechanism. The multi-nozzle adjusting injection assembly comprises a special-shaped seat; a group of flow dividing cavities are formed in the special-shaped seat; mounting openings are formed between the surface of the special-shaped base and the flow dividing cavity. Adjusting discs are arranged in the flow dividing cavities correspondingly. The surface of each adjusting disc is fixedly connected with a spray head; and a group of guide holes are uniformly distributed in the adjusting disc. The position of each nozzle is finely adjusted, so that the nozzle can be conveniently connected with a mold sprue to the greatest extent, one set of injection mechanism can be matched with multiple sets of similar molds for use, the connection efficiency and the matching degree between an injection molding machine and the molds are improved, the flexibility of injection molding production work is enhanced, the injection pressure of the multiple nozzles is balanced, and the production efficiency is improved. The uniformity degree of injecting the plasticized material into the mold in a multi-point mode can be improved, and the filling effect of the material on a mold cavity is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of injection molding machines, and specifically relates to an injection mechanism of an injection molding machine and its usage method. Background Art

[0002] With the continuous development of injection molding technology, traditional single-nozzle injection molding machines face certain limitations during the production process. For example, when producing products with high precision, high efficiency, multi-layer composite materials, and complex shapes (such as automotive parts, electronic components, medical supplies, etc.), single-nozzle injection molding machines often cannot meet the diverse, rapid, and high-quality production requirements. In addition, with the requirements of industrial automation and improved production efficiency, enterprises increasingly focus on improvements in aspects such as the production capacity, molding cycle, and product consistency of injection molding machines. To address these issues, the adoption of multi-nozzle injection technology has become an effective solution.

[0003] A patent of Chinese Patent Application CN213382666U discloses a multi-nozzle injection molding machine. The key points of its technical solution are: including an injection molding machine body, a barrel is provided at the top of the injection molding machine body, a front barrel is provided at one end of the barrel, a fixed block is provided at one end of the front barrel, a threaded barrel is provided at one end of the fixed block, a connecting barrel is provided on the side of the fixed block, a nozzle is provided at one end of the connecting barrel, and a temperature sensor is provided on the top of the fixed block.

[0004] However, the above and other existing technologies often have the following defects: when adopting the technical solution of multiple nozzles, the positions of the nozzles are mostly fixed structures, and the matching form with the mold is too single. Since the gate positions of different molds may be different, when using different molds for production, the existing multi-nozzle injection molding machines usually cannot adjust the nozzle positions. One set of injection mechanism is fixedly matched with one set of mold, and only by designing and replacing the injection mechanism can it adapt to the new working conditions, which will increase the workload and production cost and prolong the construction period.

[0005] Therefore, the present invention provides an injection mechanism of an injection molding machine and its usage method. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is: an injection mechanism of an injection molding machine according to the present invention includes a conveying component; the conveying component includes a barrel, a screw, and a heater;

[0008] It further includes a multi-nozzle adjustment injection component; the multi-nozzle adjustment injection component is used to connect the mold and inject the plastic melt; the multi-nozzle adjustment injection component is arranged at the end of the barrel;

[0009] The multi-nozzle adjustable injection assembly includes a special-shaped seat; the special-shaped seat is fixedly connected to the barrel; a set of flow splitting cavities are formed inside the special-shaped seat; the flow splitting cavities are all communicated with the barrel through flow channels; mounting openings are formed between the surface of the special-shaped seat far from the barrel and the flow splitting cavities; adjusting disks are arranged inside the flow splitting cavities; nozzles are fixedly connected to the surfaces of the adjusting disks, and the nozzles extend to the outside of the special-shaped seat through the mounting openings; a set of guide holes are evenly distributed inside the adjusting disks, and the guide holes are communicated with the nozzles.

[0010] Preferably, an O-ring is arranged between one side of the adjusting disk close to the nozzle and the side wall of the flow splitting cavity; an annular groove is formed on the side of the adjusting disk far from the nozzle; a set of balls are evenly distributed inside the annular groove, and the balls are in contact with the side wall of the flow splitting cavity.

[0011] Preferably, back holes are formed between the surface of the special-shaped seat close to the barrel and the flow splitting cavities; pressing columns are arranged inside the back holes; a sealing ring is arranged between the inner end of the pressing column and the back hole; the outer end of the pressing column is in threaded fit with the back hole.

[0012] Preferably, a set of springs are evenly distributed between the outer circumference of the adjusting disk and the flow splitting cavity; an elastic ring is fixedly connected between the nozzle and the mounting opening, and the cross section of the elastic ring is designed in a corrugated shape.

[0013] Preferably, it further includes a support seat; the end of the barrel penetrates through the support seat and is fixedly connected thereto; a filter element is fixedly connected inside the barrel; a storage tank is arranged below the filter element; a sealing cover is fixedly connected to the bottom of the storage tank.

[0014] Preferably, a slider is slidably connected inside the top of the storage tank; a slag guiding groove is arranged in the middle of the slider; a bar is fixedly connected to the upper side of the slider through a connecting rod, and the bar is in contact with the filter element; an electric telescopic rod is fixedly connected inside the support seat; a guide rod is fixedly connected between the output end of the electric telescopic rod and the slider, and the guide rod penetrates through the sealing cover and is slidably connected thereto.

[0015] Preferably, O-rings are arranged between the slider and the side wall of the storage tank and between the guide rod and the sealing cover; a switching piece is rotatably connected to the lower side of the slider at a position corresponding to the slag guiding groove through a torsion spring; a return channel is formed between the bottom of the storage tank and the inside of the barrel; a filter screen is arranged at the bottom of the return channel; a one-way valve is arranged inside the return channel.

[0016] Preferably, a roller is rotatably connected to the bottom of the storage tank through a torsion spring; a set of elastic pieces are evenly distributed on the surface of the roller; a steel wire rope is wound around the end of the roller, and the other end of the steel wire rope is fixedly connected to the slider.

[0017] Preferably, a heating sheet is fixedly connected to the side wall of the storage tank.

[0018] A method for using an injection mechanism of an injection molding machine, which is applicable to the above-mentioned injection mechanism of the injection molding machine, includes the following steps:

[0019] A1: Drive the adjustment disk to move inside the distribution cavity through the nozzle to adjust the position of the nozzle until each nozzle is aligned with the mold gate;

[0020] A2: Control the rotation of the pressing column through a tool, so that the pressing column feeds into the distribution cavity and presses the surface of the adjustment disk to fix the adjustment disk and the nozzle, and then connect each nozzle to the gate in sequence;

[0021] A3: Control the screw and the heater to work during injection molding, and the plasticized material flows into the multiple distribution cavities along the barrel, and then is injected into the mold through the guide holes and nozzles;

[0022] A4: Filter and intercept impurities in the plasticized material through the filter element, reduce the impurity content of the injection molded parts, and prevent the distribution cavity and the nozzle from being blocked;

[0023] A5: Control the up and down reciprocating movement of the guide rod, slider, connecting rod and bar through the electric telescopic rod, the bar peels off the impurities accumulated and adhered to the surface area of the filter element, and then the impurities enter the storage tank for collection;

[0024] A6: When the slider moves downward, the switching piece deflects upward and fits with the slider, the pressure in the storage tank increases, and the material inside the storage tank returns to the barrel through the return channel to participate in the subsequent injection molding process.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1. For the injection mechanism of an injection molding machine and its use method described in the present invention, by setting a multi-nozzle adjustment injection component, the position of each nozzle can be finely adjusted respectively, so as to facilitate its connection with the mold gate to the greatest extent. A set of injection mechanisms can be used in combination with multiple sets of similar molds, improving the connection efficiency and matching degree between the injection molding machine and the mold, enhancing the flexibility of injection production work, and the injection pressures of multiple nozzles are balanced, which can improve the uniformity of injecting the plasticized material into the mold in a multi-point manner, improve the filling effect of the material on the mold cavity, and improve the product quality.

[0027] 2. For an injection mechanism of an injection molding machine and its usage method according to the present invention, after adjusting the nozzle to a predetermined position, the pressing column is controlled to rotate by a tool, so that the pressing column feeds into the internal part of the flow dividing cavity and presses the surface of the adjusting disc, thereby pressing the adjusting disc tightly inside the flow dividing cavity. On the one hand, the positions of the adjusting disc and the nozzle are fixed to prevent shaking during use. On the other hand, the pressing effect of the pressing column can further press and deform the O-ring, thereby improving the sealing effect between the adjusting disc and the flow dividing cavity. When it is necessary to readjust the nozzle subsequently, controlling the pressing column to rotate in the reverse direction can release the fixation of the adjusting disc.

[0028] 3. For an injection mechanism of an injection molding machine and its usage method according to the present invention, impurities in the plasticized material are filtered and intercepted by a filter element. On the one hand, it can reduce the impurity content of the injection molded parts and improve the product quality. On the other hand, it can also prevent impurities from entering the internal part of the special-shaped seat and causing problems such as blockage of the flow dividing cavity or the nozzle, reducing the failure rate of the injection mechanism. And a part of the impurities intercepted on the surface of the filter element has a tendency to move downward under the action of gravity, and then the impurities enter the storage tank for collection. The sealing cover can be disassembled regularly to clean out the impurities in the storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] Figure 1 is a perspective view of the present invention;

[0031] Figure 2 is a structural schematic diagram of the barrel, the special-shaped seat and the support seat in the present invention;

[0032] Figure 3 is an internal structural schematic diagram of the barrel, the special-shaped seat and the support seat in the present invention;

[0033] Figure 4 is Figure 3 a partial enlarged view at A in

[0034] Figure 5 is a structural schematic diagram of the adjusting disc in the present invention;

[0035] Figure 6 is a sectional view of the barrel, the special-shaped seat and the support seat in the present invention;

[0036] Figure 7 is Figure 6 a partial enlarged view at B in

[0037] Figure 8 is Figure 6 a partial enlarged view at C in

[0038] Figure 9 is a schematic flow chart of the method of the present invention.

[0039] In the figure: barrel 1, special-shaped seat 2, flow splitting chamber 3, installation port 4, adjusting disk 5, nozzle 6, guide hole 7, ball 8, back hole 9, pressing column 10, spring 11, elastic ring 12, support seat 13, filter element 14, storage tank 15, sealing cover 16, slider 17, slag guiding groove 18, connecting rod 19, bar 20, electric telescopic rod 21, guide rod 22, switching piece 23, return channel 24, filter screen 25, check valve 26, roller 27, elastic piece 28, steel wire rope 29, electric heating sheet 30. Specific embodiments

[0040] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0041] As Figures 1 to 8 shown, an injection mechanism of an injection molding machine according to the present invention includes a conveying assembly; the conveying assembly includes a barrel 1, a screw and a heater;

[0042] It further includes a multi-nozzle adjustable injection assembly; the multi-nozzle adjustable injection assembly is used to connect to a mold and inject plastic melt; the multi-nozzle adjustable injection assembly is arranged at the end of the barrel 1;

[0043] The multi-nozzle adjustable injection assembly includes a special-shaped seat 2; the special-shaped seat 2 is fixedly connected to the barrel 1; a group of flow splitting chambers 3 are arranged inside the special-shaped seat 2; the flow splitting chambers 3 are all communicated with the barrel 1 through flow channels; installation ports 4 are arranged between the surface of the special-shaped seat 2 far from the barrel 1 and the flow splitting chambers 3; adjusting disks 5 are arranged inside the flow splitting chambers 3; nozzles 6 are fixedly connected to the surfaces of the adjusting disks 5, and the nozzles 6 extend to the outside of the special-shaped seat 2 through the installation ports 4; a group of guide holes 7 are evenly distributed inside the adjusting disks 5, and the guide holes 7 are communicated with the nozzles 6.

[0044] In the prior art, when the injection molding machine adopts the technical solution of multiple nozzles, the positions of its nozzles are mostly fixed structures, and the matching forms with the mold are too single. Since the gate positions of different molds may be different, when using different molds for production, the existing multi-nozzle injection molding machines usually cannot adjust the nozzle positions. One set of injection mechanism is fixedly matched with one set of mold, and only by designing and replacing the injection mechanism to adapt to the new working conditions will the workload and production cost increase and the construction period be prolonged.

[0045] When the present invention faces different models of molds for similar products, there may be differences in the positions of the gates. When connecting the nozzle 6 to the mold in view of the differences, first, the adjusting disc 5 is driven by the nozzle 6 to move inside the flow dividing cavity 3 to adjust the position of the nozzle 6 until each nozzle 6 is aligned with the gate of the mold. Then, each nozzle 6 is connected to the mold in sequence. During injection molding, the material flows into the multiple flow dividing cavities 3 along the barrel 1, and then is injected into the mold through the guide holes 7 and the nozzles 6, completing the injection molding process.

[0046] By providing a multi-nozzle adjustable injection assembly, the present invention can finely adjust the position of each nozzle 6 respectively, so as to facilitate the connection with the gate of the mold to the greatest extent. One injection mechanism can be used in combination with multiple sets of similar molds, improving the connection efficiency and matching degree between the injection molding machine and the mold, enhancing the flexibility of the injection molding production work, and the injection pressures of the multiple nozzles 6 are balanced, which can improve the uniformity of injecting the plasticized material into the mold in a multi-point manner, improve the filling effect of the material on the mold cavity, and improve the product quality.

[0047] An O-ring is provided between the side of the adjusting disc 5 close to the nozzle 6 and the side wall of the flow dividing cavity 3 to block the gap between the adjusting disc 5 and the flow dividing cavity 3; a ring groove is provided on the side of the adjusting disc 5 away from the nozzle 6; a group of balls 8 are evenly distributed inside the ring groove, and the balls 8 are in contact with the side wall of the flow dividing cavity 3; by providing the balls 8, the balls 8 can roll on the inner surface of the flow dividing cavity 3 during the process of moving the adjusting disc 5, thereby reducing the resistance when the adjusting disc 5 moves inside the flow dividing cavity 3, facilitating the adjustment of the position of the nozzle 6, and reducing the adjustment damping.

[0048] As another embodiment of the present invention, back holes 9 are respectively provided between the surface of the special-shaped seat 2 close to the barrel 1 and the flow dividing cavity 3; top pressure columns 10 are respectively provided inside the back holes 9; a sealing ring is provided between the inner end of the top pressure column 10 and the back hole 9; the outer end of the top pressure column 10 is in threaded fit with the back hole 9.

[0049] After adjusting the nozzle 6 to the predetermined position, the top pressure column 10 is controlled to rotate by a tool, so that the top pressure column 10 feeds into the flow dividing cavity 3 and presses the surface of the adjusting disc 5, thereby pressing the adjusting disc 5 tightly inside the flow dividing cavity 3. On the one hand, the positions of the adjusting disc 5 and the nozzle 6 are fixed to prevent shaking during use. On the other hand, the pressing effect of the top pressure column 10 can further press and deform the O-ring, thereby improving the sealing effect between the adjusting disc 5 and the flow dividing cavity 3. When it is necessary to readjust the nozzle 6 subsequently, controlling the top pressure column 10 to rotate in the reverse direction can release the fixation of the adjusting disc 5.

[0050] As another embodiment of the present invention, a group of springs 11 are evenly distributed between the outer periphery of the adjusting disc 5 and the diversion cavity 3; by providing a plurality of springs 11, when the pressing column 10 releases the fixation of the adjusting disc 5, the springs 11 can drive the adjusting disc 5 to quickly reset to the initial position inside the diversion cavity 3, having a memory function; an elastic ring 12 is fixedly connected between the nozzle 6 and the mounting port 4, and the cross-section of the elastic ring 12 is designed in a corrugated shape; by providing the elastic ring 12 to block between the mounting port 4 and the nozzle 6, when the nozzle 6 is adjusted, the nozzle 6 can drive the elastic ring 12 to deform, so as to further block the mounting port 4 and prevent the plasticized material inside the diversion cavity 3 from leaking outwards.

[0051] As another embodiment of the present invention, the present invention further includes a support seat 13; one end of the barrel 1 penetrates through the support seat 13 and is fixedly connected thereto; a filter element 14 is fixedly connected inside the barrel 1; a storage tank 15 is provided below the filter element 14; a sealing cover 16 is fixedly connected to the bottom of the storage tank 15, and the sealing cover 16 is connected to the storage tank 15 by bolts and is provided with a sealing gasket.

[0052] During the normal heating and conveying process of the material, the impurities in the plasticized material are filtered and intercepted by the filter element 14. On the one hand, it can reduce the impurity content of the injection molded parts and improve the product quality. On the other hand, it can also prevent impurities from entering the special-shaped seat 2 and causing blockage of the diversion cavity 3 or the nozzle 6, reducing the failure rate of the injection mechanism. And a part of the impurities intercepted on the surface of the filter element 14 has a tendency to move downward under the action of gravity, and then the impurities enter the storage tank 15 for collection. The sealing cover 16 can be disassembled regularly to clean out the impurities in the storage tank 15.

[0053] A slider 17 is slidably connected inside the top of the storage tank 15; a slag guiding groove 18 is provided in the middle of the slider 17; a bar 20 is fixedly connected to the upper side of the slider 17 through a connecting rod 19, and the bar 20 is in contact with the filter element 14; an electric telescopic rod 21 is fixedly connected inside the support seat 13; a guide rod 22 is fixedly connected between the output end of the electric telescopic rod 21 and the slider 17, and the guide rod 22 penetrates through the sealing cover 16 and is slidably connected thereto.

[0054] During the normal injection molding process of the injection mechanism, while the barrel 1 conveys the material, it can control the reciprocating up and down movement of the guide rod 22 and the slider 17 through the electric telescopic rod 21, and the slider 17 can drive the bar 20 to move up and down on the surface of the filter element 14 through the connecting rod 19, peeling off the impurities accumulated and adhered on the surface of the filter element 14. When the bar 20 moves downward, it is beneficial to dial the impurities into the storage tank 15 through the slag guiding groove 18, thereby improving the collection efficiency of the impurities, improving the permeability of the filter element 14, reducing the blockage phenomenon, and improving the filtering effect on the plasticized material.

[0055] As another embodiment of the present invention, O-rings are provided between the slider 17 and the side wall of the storage tank 15, and between the guide rod 22 and the sealing cover 16; a switching piece 23 is rotatably connected to the lower side of the slider 17 at a position corresponding to the slag guide groove 18 by a torsion spring; a return channel 24 is formed between the bottom of the storage tank 15 and the inside of the barrel 1; a filter screen 25 is provided at the bottom of the return channel 24, and the filtration mesh number of the filter screen 25 is the same as that of the filter element 14; a one-way valve 26 is provided inside the return channel 24, and the one-way valve 26 only allows the material to flow obliquely upward inside the return channel 24.

[0056] Since impurities will carry some plasticized materials when entering the storage tank 15, and the materials will also enter the inside of the storage tank 15 under the action of pressure during the normal conveying process of the barrel 1, resulting in a large amount of materials in the storage tank 15, which will not only cause material waste, but also reduce the actual available space of the storage tank 15 for impurities. Therefore, by providing the switching piece 23, the return channel 24, the filter screen 25 and the one-way valve 26, when the slider 17 moves upward or is located at the top of the storage tank 15, the switching piece 23 is in an inclined state under the action of the torsion spring, that is, the slag guide groove 18 is in a conducting state. When the slider 17 moves downward, the switching piece 23 is squeezed by the materials and impurities below it, prompting the switching piece 23 to deflect upward and fit with the slider 17. At this time, the slag guide groove 18 is in a blocked state. Then, when the slider 17 moves downward, the pressure in the storage tank 15 increases, and the materials inside the storage tank 15 can only return to the inside of the barrel 1 through the return channel 24, while the impurities are intercepted inside the storage tank 15 under the action of the filter screen 25. Thus, by the reciprocating movement of the slider 17, the plasticized materials in the storage tank 15 can be gradually squeezed and returned to the barrel 1 to participate in the subsequent injection molding process, thereby improving the utilization degree of the materials, reducing waste, and increasing the storage upper limit of the storage tank 15 to make room for the collection of impurities.

[0057] As another embodiment of the present invention, a roller 27 is rotatably connected to the bottom of the storage tank 15 by a torsion spring; a group of elastic pieces 28 are evenly distributed on the surface of the roller 27; a steel wire rope 29 is wound around the end of the roller 27, and the other end of the steel wire rope 29 is fixed to the slider 17.

[0058] During the up and down movement of the slider 17, the torsion springs of the steel wire rope 29 and the roller 27 can cooperate with each other to prompt the roller 27 to rotate forward and backward continuously. Then, the roller 27 drives the elastic pieces 28 to rotate, and the elastic pieces 28 stir the materials and impurities inside the storage tank 15, changing the distribution between the materials and the impurities, which is beneficial to continuously squeezing out the materials between the gaps of the impurities and conveying them to the barrel 1 through the return channel 24. At the same time, the turning effect of the elastic pieces 28 can also reduce the number of impurities around the filter screen 25, avoiding the problem that a large amount of impurities are congested around the filter screen 25 and causing the materials to be difficult to flow through the return channel 24.

[0059] A heating sheet 30 is fixedly connected to the side wall of the storage tank 15. By providing the heating sheet 30, the material can be further heated and plasticized to prevent the material from solidifying inside the storage tank 15 and the return channel 24.

[0060] As Figure 9 shown, a method for using an injection mechanism of an injection molding machine according to the present invention, which is applicable to the above injection mechanism of the injection molding machine, includes the following steps:

[0061] A1: Drive the adjustment disk 5 to move inside the distribution cavity 3 through the nozzle 6 to adjust the position of the nozzle 6 until each nozzle 6 is aligned with the mold gate;

[0062] A2: Control the rotation of the pressing column 10 through a tool, so that the pressing column 10 feeds into the distribution cavity 3 and presses the surface of the adjustment disk 5 to fix the adjustment disk 5 and the nozzle 6, and then connect each nozzle 6 to the gate in sequence;

[0063] A3: Control the screw and the heater to work during injection molding, and the plasticized material flows into the plurality of distribution cavities 3 along the barrel 1, and then is injected into the mold through the guide holes 7 and the nozzles 6;

[0064] A4: Filter and intercept impurities in the plasticized material through the filter element 14 to reduce the impurity content of the injection molded part and prevent blockage of the distribution cavity 3 and the nozzles 6;

[0065] A5: Control the up and down reciprocating movement of the guide rod 22, the slider 17, the connecting rod 19 and the stripping bar 20 through the electric telescopic rod 21, and the stripping bar 20 peels off the impurities accumulated and adhered to the surface of the filter element 14, and then the impurities enter the storage tank 15 for collection;

[0066] A6: When the slider 17 moves downward, the switching piece 23 deflects upward and fits with the slider 17, the pressure in the storage tank 15 increases, and the material inside the storage tank 15 returns to the barrel 1 through the return channel 24 to participate in subsequent injection molding.

[0067] The above front, back, left, right, up, and down are all based on the Figure 1 in the specification drawings, and according to the standard of the observer's perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0068] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0069] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine ejection mechanism, comprising a conveying assembly; the conveying assembly comprises a barrel (1), a screw and a heater; Features: It also includes a multi-nozzle adjustable injection assembly; the multi-nozzle adjustable injection assembly is used to connect the mold and inject plastic melt; the multi-nozzle adjustable injection assembly is arranged at the end of the barrel (1); The multi-nozzle adjustable injection assembly comprises a special-shaped seat (2); the special-shaped seat (2) is fixedly connected to the barrel (1); a group of diversion chambers (3) are provided inside the special-shaped seat (2); the diversion chambers (3) are connected to the barrel (1) through flow channels; a mounting port (4) is provided between the side surface of the special-shaped seat (2) away from the barrel (1) and the diversion chamber (3); an adjusting disk (5) is provided inside the diversion chamber (3); a nozzle (6) is fixedly connected to the surface of the adjusting disk (5), and the nozzle (6) extends to the outside of the special-shaped seat (2) through the mounting port (4); a group of guide holes (7) are evenly distributed inside the adjusting disk (5), and the guide holes (7) are connected to the nozzle (6).

2. The injection molding machine ejection mechanism according to claim 1, characterized in that: An O-ring is arranged between the side of the regulating disk (5) close to the nozzle (6) and the side wall of the diversion chamber (3); an annular groove is provided on the side of the regulating disk (5) away from the nozzle (6); a group of balls (8) are evenly distributed inside the annular groove, and the balls (8) are in contact with the side wall of the diversion chamber (3).

3. The injection molding machine ejection mechanism according to claim 2, characterized in that: A back hole (9) is provided between the side surface of the special-shaped seat (2) close to the barrel (1) and the diversion chamber (3); a top pressure column (10) is provided inside the back hole (9); a sealing ring is provided between the inner end of the top pressure column (10) and the back hole (9); and a threaded fit is provided between the outer end of the top pressure column (10) and the back hole (9).

4. The injection molding machine ejection mechanism according to claim 3, characterized in that: A group of springs (11) are evenly distributed between the outer periphery of the regulating disk (5) and the diversion chamber (3); an elastic ring (12) is fixedly connected between the nozzle (6) and the installation port (4), and the cross section of the elastic ring (12) is designed to be corrugated.

5. The injection molding machine ejection mechanism according to claim 4, characterized in that: It also comprises a support seat (13); the end of the barrel (1) passes through the support seat (13) and is fixedly connected thereto; a filter element (14) is fixedly connected inside the barrel (1); a storage tank (15) is provided below the filter element (14); and a sealing cover (16) is fixedly connected to the bottom of the storage tank (15).

6. The injection molding machine ejection mechanism according to claim 5, characterized in that: A slider (17) is slidably connected inside the top of the storage tank (15); a slag guide groove (18) is provided in the middle of the slider (17); a shifting bar (20) is fixedly connected to the upper side of the slider (17) through a connecting rod (19), and the shifting bar (20) is in contact with the filter element (14); an electric telescopic rod (21) is fixedly connected inside the support seat (13); a guide rod (22) is fixedly connected between the output end of the electric telescopic rod (21) and the slider (17), and the guide rod (22) passes through the sealing cover (16) and is slidably connected thereto.

7. The injection molding machine ejection mechanism according to claim 6, characterized in that: O-rings are arranged between the slider (17) and the side wall of the storage tank (15), and between the guide rod (22) and the sealing cover (16); a switching plate (23) is rotatably connected to the lower side of the slider (17) at a corresponding position of the slag guide tank (18) via a torsion spring; a return channel (24) is provided between the bottom of the storage tank (15) and the inside of the barrel (1); a filter screen (25) is provided at the bottom of the return channel (24); and a one-way valve (26) is provided inside the return channel (24).

8. The injection molding machine ejection mechanism according to claim 7, characterized in that: The bottom of the storage tank (15) is rotatably connected to a roller (27) via a torsion spring; a group of spring sheets (28) are evenly distributed on the surface of the roller (27); a steel wire rope (29) is wound around the end of the roller (27), and the other end of the steel wire rope (29) is fixedly connected to the slider (17).

9. The injection molding machine ejection mechanism according to claim 8, characterized in that: An electric heating plate (30) is fixedly connected to the side wall of the storage tank (15).

10. A method for using an injection molding machine injection mechanism, the method being applicable to the injection molding machine injection mechanism of claim 9, characterized in that: The following steps are involved: A1: The nozzle (6) drives the adjusting plate (5) to move inside the diversion cavity (3) to adjust the position of the nozzle (6) until each nozzle (6) is aligned with the mold gate; A2: Control the rotation of the top pressure column (10) by means of a tool so that the top pressure column (10) is fed into the diversion cavity (3) and presses the surface of the adjustment disk (5), fixes the adjustment disk (5) and the nozzle (6), and then connects each nozzle (6) to the gate in sequence; A3: During the injection molding process, the screw and the heater are controlled to work, and the plasticized material flows along the barrel (1) into the multiple flow-dividing chambers (3), and then is injected into the mold through the guide hole (7) and the nozzle (6); A4: Filter and intercept impurities in the plasticized material through the filter element (14), reduce the impurity content of the injection molded part, and prevent the diverter cavity (3) and the nozzle (6) from being blocked; A5: The guide rod (22), the slider (17), the connecting rod (19) and the pull rod (20) are controlled by the electric telescopic rod (21) to reciprocate up and down, and the pull rod (20) peels off the impurities accumulated and adhered on the surface of the filter element (14), and then the impurities enter the storage tank (15) for collection; A6: When the slider (17) moves downward, the switching plate (23) deflects upward and fits with the slider (17), the pressure of the storage tank (15) increases, and the material inside the storage tank (15) returns to the inside of the barrel (1) through the return channel (24) to participate in the subsequent injection molding process.

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