Energy-saving injection molding machine shooting platform

Abstract

The present invention relates to the field of injection molding technology, and discloses an energy-saving injection molding machine shooting platform, including an injection component, a gear box and a hydraulic system. The injection component includes two groups of injection components and an injection nozzle arranged between the output ends of the two groups of injection components. The outsides of the two groups of injection components are provided with heating elements. The gear box is used to drive the push screw in the injection component to rotate, and the hydraulic system is used to drive the push screw in the injection component to move. In this solution, the two groups of injection components can be used alternately, and the injection molding efficiency can be improved by cooperating with the mold of the injection molding machine. The oil cylinder and the push screw in the hydraulic system are located on the same straight line. Therefore, when the oil cylinder drives the push screw to move, there is no bending moment problem between the two.

Description

Technical Field

[0001] The invention relates to the technical field of injection, and in particular to an energy-saving injection molding machine shooting platform. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment for making thermoplastic plastics or thermosetting plastics into various shapes of plastic products using plastic molding molds. The injection molding machine shooting table is the part of the injection molding machine that injects the plastic melt into the mold. It generally includes a screw and a hydraulic system that drives the screw to move. The hydraulic system is used to drive the screw to run, and the screw movement injects the molten plastic into the mold. In the prior art, the shooting table generally has only one injection nozzle, and the next injection molding can only be carried out after the workpiece in the mold is cooled, molded and demolded, and the mold is closed. The efficiency is relatively low and needs to be improved. In addition, the Chinese invention patent application with application publication number CN113815183A discloses a disordered color mixing injection device, which is driven by the cooperation of two injection cylinders located on the front and rear sides of the mounting seat to drive the plunger to move in the barrel, thereby completing the injection of the molten resin particles. Since the injection cylinders are located on both sides and are not in the same straight line with the plunger, in the process of driving the plunger to move, in addition to the thrust, there will also be a bending moment, so it is easy to wear after long-term use, affecting the service life.

[0003] Based on the above, the present invention proposes an energy-saving injection molding machine shooting platform. Summary of the invention

[0004] In order to solve the problems mentioned in the above background, the present invention provides an energy-saving injection molding machine shooting platform.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0006] An energy-saving injection molding machine shooting platform comprises an injection component, a gear box and a hydraulic system, wherein the injection component comprises two groups of injection components and an injection nozzle arranged between the output ends of the two groups of injection components, heating elements are arranged outside the two groups of injection components, the gear box is used to drive the push screw in the injection component to rotate, the hydraulic system is used to drive the push screw in the injection component to move, and the oil cylinder in the hydraulic system and the push screw are located on the same straight line;

[0007] The injection assembly includes an injection tube, a push screw is coaxially located in the injection tube, one end of the push screw is provided with a cone head, and the other end is coaxially connected to a sealing shaft, the end of the sealing shaft extends out of the injection tube and a sealed sliding guide is formed therebetween, and the end of the sealing shaft is coaxially connected to a connecting shaft;

[0008] The outside of the push screw is provided with a step close to the cone head, the outer cylindrical surface of the push screw is provided with a transverse groove located between the cone head and the step, the outer surface of the cone head is also provided with an avoidance port connected to the transverse groove, a ring plug is sleeved between the cone head and the step, the outer ring surface of the ring plug forms a sealed sliding guide fit with the injection tube, and the inner ring surface of the ring plug forms a sliding fit with the push screw.

[0009] Furthermore, a nozzle is provided at the highest point of the outer circumferential surface of the injection tube, the upper end of the nozzle is connected to a feeding tube, and the upper end of the feeding tube is connected to a barrel.

[0010] Furthermore, there is a gap between the push screw and the wall of the injection tube.

[0011] Furthermore, the output end of the injection tube is coaxially connected to a conical tube, which is connected to the injection nozzle. An inner shoulder is arranged in the conical tube, and a one-way plug is provided in the conical tube, which is located on the side of the inner shoulder away from the injection tube. The end of the one-way plug facing the inner shoulder can fit with the inner shoulder, and a one-way groove is provided through the end of the one-way plug facing the inner shoulder. When the one-way plug fits with the inner shoulder, the inner shoulder blocks the one-way groove. A limiting ring for limiting the departure of the one-way plug is provided at the end of the conical tube.

[0012] Furthermore, the gearbox includes a box body, the outer surface of which is provided with motor 2, the output end of motor 2 extends into the box body, the end of the sealing shaft extends into the box body and a sealing fit is formed between the two, a lubricating medium is stored in the box body, a power connection is formed between the connecting shaft and the output end of motor 2 through a gear set, and a driven member of the gear set is arranged on the connecting shaft through a spline, and when the connecting shaft moves along the axis centerline, power can be continuously output to the connecting shaft through the driven member.

[0013] Furthermore, the hydraulic system includes an oil cylinder, which includes a cylinder shell, a cylinder plug is provided in the cylinder shell, a cylinder plug rod is extended from the end of the cylinder plug, the end of the cylinder plug rod extends out of the cylinder shell and is coaxially rotatably connected to the connecting shaft, and the internal area of ​​the cylinder shell is divided by the cylinder plug into chamber one and chamber two that are not connected to each other, chamber one is located on the side of the cylinder plug facing the connecting shaft, and two oil cylinders are correspondingly provided, and chambers one of the two oil cylinders are connected by a connecting pipe.

[0014] Furthermore, the hydraulic system also includes an oil tank, an oil pump and a booster component, the oil tank and the input end of the oil pump are connected through an oil pipeline 1, and the output end of the oil pump is connected to an oil pipeline 2;

[0015] The boost component includes an outer cylinder shell, in which piston one, piston two and a spring located between the two are installed. The end of the outer cylinder shell located on the side of piston one away from piston two is connected to oil pipeline two through oil pipeline three. A telescopic rod for driving piston two to move is provided on the outer cylinder shell, and oil pipeline two is connected to chamber two of the two oil cylinders through a connecting assembly.

[0016] Furthermore, the connecting assembly includes an oil pipeline five connected to chamber two of one oil cylinder and an oil pipeline six connected to chamber two of another oil cylinder, and the oil pipeline five, the oil pipeline six and the oil pipeline two are connected via a connecting valve.

[0017] Further, the connecting valve comprises a valve housing arranged vertically, the outer surface of the valve housing is provided with a side nozzle 1 and a side nozzle 2 located on the same straight line and a side nozzle 3 located below the side nozzle 1, the side nozzle 1 and the side nozzle 2 are connected to the oil pipeline 5 and the oil pipeline 6 respectively, the side nozzle 3 is connected to the oil tank through the oil pipeline 4, the bottom of the valve housing is provided with a bottom nozzle, the bottom nozzle is connected to the oil pipeline 2 and a solenoid valve is provided at the connection;

[0018] A valve core is provided in the valve housing, and the valve core is located above the side nozzle three. The upper end of the valve core is closed and the lower end is open. A valve hole is provided on the outer circumferential surface of the valve core. Two valve holes are arranged in an array along the circumferential direction of the valve core. The valve hole and the side nozzle one are located on the same straight line. A valve pipe is connected to the inner hole mouth of one of the two valve holes, and the end of the valve pipe is rotatably connected with the bottom nozzle.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In this solution, two groups of injection components are provided. Therefore, the two groups of injection components can be used alternately. In conjunction with the mold of the injection molding machine, the injection molding efficiency can be improved. Specifically, two molds of the injection molding machine can be provided. The two molds are pulled by the existing mechanical arm technology or other pulling technology to be connected alternately with the injection nozzle. In this way, the two injection components cooperate with the two molds to greatly improve the injection molding efficiency. On this basis:

[0021] 1. The oil cylinder that drives the push screw of the injection assembly to move is located on the same straight line as the push screw, thus solving the bending moment problem mentioned in the background technology;

[0022] 2. The two injection assemblies can be driven to be used alternately by the cooperation of two oil cylinders, and the structure is relatively simple. Furthermore, the two oil cylinders can be driven to operate by the cooperation of an oil pump and a booster component, so as to drive the two injection assemblies to be used alternately. The advantage of this is that it is easy to think that using two oil pumps to drive the two oil cylinders to operate respectively, then on the one hand, the number of oil pumps is large and the cost is higher. On the other hand, there will be a pause when the two injection assemblies are used alternately. Therefore, the two oil pumps need to be started and stopped frequently, which will undoubtedly increase the loss of the oil pump and affect the service life of the oil pump, and the energy consumption is also large. On the other hand, in this scheme, the two oil cylinders can be driven to operate correspondingly by the cooperation of an oil pump and a booster component. On the one hand, the oil pump runs continuously without frequent start and stop. Therefore, the loss and energy consumption of the oil pump will be significantly reduced. On the one hand, it is only necessary to control the state switching of the solenoid valve and the connecting valve, and the control programming is simpler. On the one hand, the booster component can play a boosting and speeding effect, so that the oil cylinder runs faster, thereby making the push screw move faster, which is more conducive to quickly injecting the molten plastic into the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0024] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0025] Figure 3 It is a partial schematic diagram of the hydraulic system;

[0026] Figure 4 is a cross-sectional view of a pressurized component;

[0027] Figure 5 is a schematic diagram of the connection valve;

[0028] Figure 6 is a cross-sectional view of a connecting valve;

[0029] Figure 7 It is a schematic diagram of the injection component, the oil cylinder, the second motor and the gear set;

[0030] Figure 8 It is a schematic diagram of the push screw and the oil cylinder;

[0031] Fig. 9 is a schematic diagram of two sets of injection components;

[0032] Fig.10 is a cross-sectional view of the injection assembly;

[0033] Fig.11 This is an exploded view of the one-way plug, tapered tube, push screw and ring plug.

[0034] The reference numerals in the accompanying drawings are:

[0035] 100, injection component; 101, heating element; 102, injection assembly; 1021, injection tube; 1022, nozzle; 1023, cone tube; 1024, push screw; 1025, sealing shaft; 1026, connecting shaft; 1027, cone head; 1028, ring plug; 1029, one-way plug; 103, injection nozzle; 200, barrel; 201, feed pipe; 300, gear box; 301, motor 2; 302, gear set; 400, hydraulic system; 401, oil tank; 402, oil pipeline 1; 403, oil pump; 404, oil pipeline 2; 405, solenoid valve; 406, oil pump; 407, oil pump; 408, oil pump; 409, oil pump; 410, oil pump; 411, oil pump; 412, oil pump; 413, oil pump; 414, oil pump; 415, oil pump; 416, oil pump; 417, oil pump; 418, oil pump; 419, oil pump; 420, oil pump; 421, oil pump; 422, oil pump; 423, oil pump; 424, oil pump; 425, oil pump; 426, oil pump; 427, oil pump; 428, oil pump; 429, oil pump; 430, oil pump; 431, oil pump; 432, oil pump; 433, oil pump; 434, oil pump; 435, oil pump; 436, oil pump; 437, oil pump; 438, oil pump; 439, oil pump; 440, oil pump; 441, oil pump; 442, oil pump; 443, oil pump 6. Oil pipeline three; 407. Pressurizing component; 4071. Outer cylinder shell; 4072. Piston one; 4073. Piston two; 4074. Spring; 4075. Telescopic rod; 408. Oil pipeline four; 409. Connecting valve; 4091. Valve shell; 4092. Side nozzle one; 4093. Side nozzle two; 4094. Side nozzle three; 4095. Valve core; 4096. Valve pipe; 4097. Bottom nozzle; 410. Motor one; 411. Oil pipeline five; 412. Oil pipeline six; 413. Oil cylinder; 4131. Cylinder shell; 4132. Cylinder plug; 4133. Cylinder plug rod; 4134. Connecting pipe. DETAILED DESCRIPTION

[0036] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0037] Reference Figure 1-Figure 11 , an energy-saving injection molding machine shooting platform, including an injection component 100, a gear box 300 and a hydraulic system 400, wherein:

[0038] The injection component 100 includes two groups of injection components 102 and an injection nozzle 103 disposed between the output ends of the two groups of injection components 102. A heating element 101 is disposed outside the two groups of injection components 102, which can be an existing electric heating technology to heat the injection components 102 so that the plastic particles inside are melted;

[0039] The gear box 300 is used to drive the push screw 1024 in the injection assembly 102 to rotate. On the one hand, it plays a stirring role in the melting process of plastic particles to achieve a better melting effect. On the other hand, it can realize the feeding of the output end of the injection assembly 102 of the molten plastic box.

[0040] The hydraulic system 400 is used to drive the push screw 1024 in the injection assembly 102 to move, so as to inject the molten plastic at the output end of the injection assembly 102 into the mold of the injection molding machine through the injection nozzle 103.

[0041] In this solution, since two groups of injection components 102 are provided, the two groups of injection components 102 can be used alternately, and the injection molding efficiency can be improved in conjunction with the mold of the injection molding machine. Specifically, two molds of the injection molding machine can be provided, and the two molds are towed by the existing mechanical arm technology or other traction technology to be alternately connected to the injection nozzle 103. In this way, the two injection components 102 cooperate with the two molds, which can greatly improve the injection molding efficiency. It should be noted that it is easy for technicians in this field to think of referring to the hydraulic system technology of the existing injection molding machine and providing it with two sets, corresponding to the two injection components 102 respectively. However, in this case, since it is inevitable to pause in the middle when using alternately, the oil pumps and cylinders in the two sets of hydraulic systems need to be paused accordingly. The frequent start and stop of the oil cylinder and oil pump can easily affect its service life and generate more energy consumption. One of the cores of this solution is the hydraulic system 400, which can solve this problem. See the following for details.

[0042] In this solution, the cylinder 413 and the push screw 1024 in the hydraulic system 400 are located on the same straight line. Therefore, when the push screw 1024 is driven to move by the cylinder 413, there is no bending moment, which solves the bending moment problem mentioned in the background technology. At the same time, in this solution, the two injection assemblies 102 can be driven to be used alternately through the cooperation of the two cylinders 413. Therefore, it is equivalent to one cylinder 413 corresponding to one injection assembly 102, which simplifies the overall structure.

[0043] 1. Injection component 100:

[0044] Reference Figure 7-Figure 11 The injection component 100 includes two groups of injection components 102 and an injection nozzle 103 arranged between the output ends of the two groups of injection components 102. A heating element 101 is arranged outside the two groups of injection components 102.

[0045] The injection assembly 102 includes an injection tube 1021, a nozzle 1022 is provided at the highest point of the outer circumferential surface of the injection tube 1021, the upper end of the nozzle 1022 is connected to the feeding tube 201, the upper end of the feeding tube 201 is connected to the barrel 200, and the plastic particles stored in the barrel 200 enter the injection tube 1021 through the feeding tube 201 and the nozzle 1022.

[0046] The pushing screw 1024 is coaxially located in the injection tube 1021 and one end of the pushing screw 1024 is provided with a cone head 1027, and the other end is coaxially connected to the sealing shaft 1025, the end of the sealing shaft 1025 extends out of the injection tube 1021 and a sealed sliding guide is formed therebetween, and the end of the sealing shaft 1025 is coaxially connected to the connecting shaft 1026.

[0047] There is a gap between the pushing screw 1024 and the wall of the injection tube 1021 .

[0048] The outside of the pushing screw 1024 is provided with a step close to the cone head 1027, the outer cylindrical surface of the pushing screw 1024 is provided with a transverse groove located between the cone head 1027 and the step, and the outer surface of the cone head 1027 is also provided with an avoidance opening connected to the transverse groove.

[0049] A ring plug 1028 is also sleeved between the cone head 1027 and the step. The outer ring surface of the ring plug 1028 and the injection tube 1021 form a sealed sliding guide fit, and the inner ring surface of the ring plug 1028 and the pushing screw 1024 also form a sliding guide fit.

[0050] The plastic particles fall into the area where the push screw 1024 is located, and are melted by the heating element 101. The two spaces on both sides of the cone head 1027 of the injection tube 1021 are connected to the transverse groove through the avoidance port. The push screw 1024 rotates to pull the molten plastic into the space where the output end of the injection tube 1021 is located.

[0051] During injection, the connecting shaft 1026 is driven to move by the hydraulic system 400, thereby driving the push screw 1024 forward. During the forward process, at first, the ring plug 1028 does not move, and the forward movement of the push screw 1024 causes the step to fit with the ring plug 1028. Afterwards, the molten plastic in the space where the output end of the injection tube 1021 is located will push the ring plug 1028 in the reverse direction, making it fit closely with the step to form a sealed fit. Therefore, the forward movement of the push screw 1024 can push the molten plastic in the space where the output end of the injection tube 1021 is located to output outward, that is, inject the molten plastic into the mold;

[0052] After the injection is completed, the push screw 1024 is driven to retreat by the hydraulic system 400. During the retreat process, at first, the ring plug 1028 does not move, and the push screw 1024 retreats so that the cone head 1027 contacts the ring plug 1028. Then, the push screw 1024 retreats with the ring plug 1028 until the reset is completed.

[0053] It should be noted that during the forward or backward process, the push screw 1024 rotates continuously. During the forward process, since the ring plug 1028 and the step form a seal, the rotation of the push screw 1024 is equivalent to stirring the plastic in the area to make it fully melted. During the backward process, the molten plastic can be pulled by the push screw 1024 and flow toward the space where the output end of the injection tube 1021 is located.

[0054] In a preferred embodiment, since the injection assembly 102 is provided with two groups, in order to prevent the injection assembly 102 that is injecting the molten plastic from pushing the molten plastic into another injection assembly 102, Figure 9-11The output end of the injection tube 1021 is coaxially connected with a conical tube 1023, the end of the conical tube 1023 is connected to the injection nozzle 103, an inner shoulder is arranged in the conical tube 1023, the inner shoulder is in a truncated cone shape, and its inner diameter decreases along the axis direction of the conical tube 1023 and in the direction from the conical tube 1023 to the injection tube 1021, and a one-way plug 1029 is present on the side of the inner shoulder away from the injection tube 1021, and the end of the one-way plug 1029 facing the inner shoulder can fit with the inner shoulder, that is, it is also in a truncated cone shape, and the end of the one-way plug 1029 facing the inner shoulder passes through the one-way plug 1029. A one-way groove is provided; its significance is that during injection, the molten plastic will push the one-way plug 1029 to move, so the one-way plug 1029 does not affect the flow of the molten plastic in the conical tube 1023 during injection, but on the contrary, the one-way plug 1029 in another group of injection components 102 is subjected to a force pushing it close to the inner shoulder, so that the one-way plug 1029 fits tightly against the inner shoulder to form a sealing fit, thereby achieving the purpose that the injection component 102 that is injecting the molten plastic will not push the molten plastic into another injection component 102.

[0055] 2. Gearbox 300:

[0056] Reference Figure 7 The gearbox 300 includes a box body, and a motor 2 301 is arranged on the outer surface of the box body. The output end of the motor 2 301 extends into the box body, and the end of the sealing shaft 1025 extends into the box body and a sealing fit is formed between the two. A lubricating medium, such as lubricating oil, is stored in the box body. The connecting shaft 1026 and the output end of the motor 2 301 are connected to each other through a gear set 302 to form a power connection. The driven member of the gear set 302 is arranged on the connecting shaft 1026 through a spline. When the connecting shaft 1026 moves along the axis, the driven member can continuously output power to the connecting shaft 1026.

[0057] The installation of the components of the gear set 302, the connection between the sealing shaft 1025 and the housing, and the connection between the connecting shaft 1026 and the housing all require bearings, so lubricating oil needs to be added regularly, which is inconvenient. The present solution directly stores the lubricating medium in the housing, so there is no need to add lubricating oil regularly.

[0058] In this solution, the push screw 1024 can be driven to rotate by the motor 2 301 .

[0059] 3. Hydraulic system 400:

[0060] Reference Figure 7 and Figure 8The hydraulic system 400 includes an oil cylinder 413, and the oil cylinder 413 includes a cylinder shell 4131. A cylinder plug 4132 is sleeved in the cylinder shell 4131. A cylinder plug rod 4133 extends from the end of the cylinder plug 4132. The end of the cylinder plug rod 4133 extends out of the cylinder shell 4131 and is coaxially connected to the connecting shaft 1026. Two oil cylinders 413 are correspondingly arranged.

[0061] The internal area of ​​the cylinder shell 4131 is divided into chamber 1 and chamber 2 which are not connected to each other by the cylinder plug 4132. Chamber 1 is located on the side of the cylinder plug 4132 facing the connecting shaft 1026. The chambers 1 of the two oil cylinders 413 are connected by a connecting pipe 4134.

[0062] Reference Figure 2-Figure 6 The hydraulic system 400 also includes an oil tank 401 , an oil pump 403 and a boosting component 407 .

[0063] The oil tank 401 is connected to the input end of the oil pump 403 via an oil pipeline 1 402 , and the output end of the oil pump 403 is connected to an oil pipeline 2 404 .

[0064] The boost component 407 includes an outer cylinder shell 4071, in which a piston 1 4072, a piston 2 4073 and a spring 4074 located therebetween are installed. The end of the outer cylinder shell 4071 located on the side of the piston 1 4072 away from the piston 2 4073 is connected to the oil pipeline 2 404 through the oil pipeline 3 406. The piston 2 4073 is driven by the telescopic rod 4075 to move in the outer cylinder shell 4071. The telescopic rod 4075 can be realized by using the existing electric telescopic rod technology and will not be elaborated on herein.

[0065] The oil pipeline 2 404 is connected to the chamber 2 of the two oil cylinders 413 via a connecting assembly. Specifically, the connecting assembly includes an oil pipeline 5 411 connected to the chamber 2 of one oil cylinder 413 and an oil pipeline 6 412 connected to the chamber 2 of another oil cylinder 413. The oil pipeline 5 411, the oil pipeline 6 412 and the oil pipeline 2 404 are connected via a connecting valve 409.

[0066] The connecting valve 409 includes a vertically arranged valve housing 4091, and three side nozzles are provided on the outer surface of the valve housing 4091, namely: side nozzle one 4092 and side nozzle two 4093 located on the same straight line, and side nozzle three 4094 located below side nozzle one 4092. Side nozzle one 4092 and side nozzle two 4093 are respectively connected to oil pipeline five 411 and oil pipeline six 412, and side nozzle three 4094 is connected to the oil tank 401 through oil pipeline four 408.

[0067] A bottom nozzle 4097 is provided at the bottom of the valve housing 4091 . The bottom nozzle 4097 is connected to the second oil pipeline 404 and a solenoid valve 405 is provided at the connection.

[0068] A valve core 4095 is sleeved in the valve housing 4091. The valve core 4095 is located above the side nozzle three 4094. The upper end of the valve core 4095 is closed and the lower end is open. A valve hole is opened on the outer circumferential surface of the valve core 4095. Two valve holes are arranged in an array along the circumferential direction of the valve core 4095. The valve hole and the side nozzle one 4092 are located on the same straight line. Therefore, the valve core 4095 can be driven to rotate by the motor one 410, so that the two valve holes are connected with the side nozzle one 4092 and the side nozzle two 4093 respectively, so that the two valve holes can be connected with the chamber two of the two oil cylinders 413 respectively.

[0069] A valve tube 4096 is connected to the inner opening of one of the two valve holes, and the end of the valve tube 4096 is rotatably connected to the bottom nozzle 4097; by rotating the valve core 4095, one valve tube 4096 can be connected to the second chamber of one oil cylinder 413, and the second chamber of the other oil cylinder 413 can be connected to the valve housing 4091, and thus connected to the oil tank 401.

[0070] Working principle of hydraulic system 400:

[0071] For ease of description, the two injection assemblies 102 are named injection assembly 1 and injection assembly 2 respectively;

[0072] The oil pump 403 is started and runs continuously. At the beginning, the solenoid valve 405 is closed, and the hydraulic oil is drawn into the outer cylinder shell 4071 of the booster component 407, and the spring 4074 is compressed. At the same time, the motor 1 410 drives the valve core 4095 to rotate, so that the oil cylinder 413 corresponding to the injection component 1 is connected to the valve pipe 4096, and the oil cylinder 413 corresponding to the injection component 2 is connected to the oil tank 401;

[0073] Then, the solenoid valve 405 is opened, and the hydraulic oil, driven by the spring 4074 and the oil pump 403, flows into the chamber 2 in the oil cylinder 413 corresponding to the injection assembly 1 through the oil pipeline 2 404, the bottom nozzle 4097, the valve tube 4096, and the oil pipeline 5 411 in sequence, thereby driving the push screw 1024 of the injection assembly 1 forward to inject the molten plastic into the mold. At the same time, the hydraulic oil in the chamber 1 of the oil cylinder 413 corresponding to the injection assembly 1 flows into the chamber 1 of another oil cylinder 413 through the connecting pipe 4134, thereby causing the push screw 1024 in the injection assembly 2 to retreat and reset. The hydraulic oil in the chamber 2 of the oil cylinder 413 corresponding to the injection assembly 2 returns to the oil tank 401 through the oil pipeline 6 412, the valve housing 4091, and the oil pipeline 4 408 in sequence.

[0074] After the injection of injection component one is completed, it takes time to switch the positions of the two molds. Therefore, a pause is required. At this time, the solenoid valve 405 is closed, and the oil pump 403 runs to pull the hydraulic oil into the boost component 407. The motor 410 drives the valve core 4095 to rotate one hundred and eighty degrees. After the switching of the two mold positions is completed, the solenoid valve 405 is opened. Thereafter, the operation of the oil pump 403 will drive the push screw 1024 in the injection component two to move forward, and the push screw 1024 in the injection component one to retreat and reset, and so on and so forth to achieve injection molding.

[0075] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An energy-saving injection molding machine shooting platform, comprising an injection component (100), a gear box (300) and a hydraulic system (400), characterized in that: The injection component (100) comprises two groups of injection assemblies (102) and an injection nozzle (103) arranged between the output ends of the two groups of injection assemblies (102); a heating element (101) is arranged outside the two groups of injection assemblies (102); a gear box (300) is used to drive a push screw (1024) in the injection assembly (102) to rotate; a hydraulic system (400) is used to drive the push screw (1024) in the injection assembly (102) to move; and an oil cylinder (413) in the hydraulic system (400) and the push screw (1024) are located on the same straight line; The injection assembly (102) comprises an injection tube (1021), a push screw (1024) coaxially located in the injection tube (1021), one end of the push screw (1024) being provided with a cone head (1027), and the other end being coaxially connected to a sealing shaft (1025), the end of the sealing shaft (1025) extending out of the injection tube (1021) and forming a sealed sliding guide fit therebetween, and the end of the sealing shaft (1025) being coaxially connected to a connecting shaft (1026); The outside of the push screw (1024) is provided with a step close to the cone head (1027); the outer cylindrical surface of the push screw (1024) is provided with a transverse groove located between the cone head (1027) and the step; the outer surface of the cone head (1027) is also provided with an escape opening connected to the transverse groove; a ring plug (1028) is sleeved between the cone head (1027) and the step; the outer ring surface of the ring plug (1028) forms a sealed sliding guide fit with the injection tube (1021); and the inner ring surface of the ring plug (1028) forms a sliding fit with the push screw (1024); The output end of the injection tube (1021) is coaxially connected to a conical tube (1023), the conical tube (1023) is connected to the injection nozzle (103), an inner shoulder is arranged in the conical tube (1023), a one-way plug (1029) is sleeved in the conical tube (1023) and is located on the side of the inner shoulder away from the injection tube (1021), the end of the one-way plug (1029) facing the inner shoulder can be fitted with the inner shoulder, a one-way groove is penetrated by the end of the one-way plug (1029) facing the inner shoulder, when the one-way plug (1029) is fitted with the inner shoulder, the inner shoulder blocks the one-way groove, and a limiting ring for limiting the one-way plug (1029) from leaving is arranged at the end of the conical tube (1023); The gear box (300) comprises a box body, the outer surface of which is provided with a second motor (301), the output end of the second motor (301) extends into the box body, the end of the sealing shaft (1025) extends into the box body and a sealing fit is formed between the two, a lubricating medium is stored in the box body, a connecting shaft (1026) and the output end of the second motor (301) are connected to each other in a power manner via a gear set (302), a driven member of the gear set (302) is arranged on the connecting shaft (1026) via a spline, and when the connecting shaft (1026) moves along the axis, power can be continuously output to the connecting shaft (1026) via the driven member; The hydraulic system (400) comprises an oil cylinder (413), the oil cylinder (413) comprises a cylinder shell (4131), a cylinder plug (4132) is sleeved in the cylinder shell (4131), a cylinder plug rod (4133) extends from the end of the cylinder plug (4132), the end of the cylinder plug rod (4133) protrudes out of the cylinder shell (4131) and is coaxially rotatably connected to the connecting shaft (1026), the inner area of ​​the cylinder shell (4131) is divided by the cylinder plug (4132) into a chamber 1 and a chamber 2 which are not connected to each other, the chamber 1 is located on the side of the cylinder plug (4132) facing the connecting shaft (1026), two oil cylinders (413) are correspondingly provided, and the chambers 1 of the two oil cylinders (413) are connected via a connecting pipe (4134); The hydraulic system (400) further comprises an oil tank (401), an oil pump (403) and a pressurizing component (407); the oil tank (401) and the input end of the oil pump (403) are connected via an oil pipeline 1 (402); and the output end of the oil pump (403) is connected to an oil pipeline 2 (404); The booster component (407) comprises an outer cylinder shell (4071), in which piston one (4072), piston two (4073) and a spring (4074) located therebetween are installed; the end of the outer cylinder shell (4071) located on the side of piston one (4072) away from piston two (4073) is connected to oil pipeline two (404) via oil pipeline three (406); a telescopic rod (4075) for driving piston two (4073) to move is provided on the outer cylinder shell (4071); and oil pipeline two (404) and chamber two of the two oil cylinders (413) are connected via a connecting assembly; The connecting assembly comprises an oil pipeline 5 (411) communicating with chamber 2 of one oil cylinder (413) and an oil pipeline 6 (412) communicating with chamber 2 of another oil cylinder (413); the oil pipeline 5 (411), the oil pipeline 6 (412) and the oil pipeline 2 (404) are connected via a connecting valve (409); The connecting valve (409) comprises a valve housing (4091) arranged vertically. The outer surface of the valve housing (4091) is provided with a side nozzle 1 (4092) and a side nozzle 2 (4093) located on the same straight line and a side nozzle 3 (4094) located below the side nozzle 1 (4092). The side nozzle 1 (4092) and the side nozzle 2 (4093) are connected to the oil pipeline 5 (411) and the oil pipeline 6 (412) respectively. The side nozzle 3 (4094) is connected to the oil tank (401) via the oil pipeline 4 (408). A bottom nozzle (4097) is provided at the bottom of the valve housing (4091). The bottom nozzle (4097) is connected to the oil pipeline 2 (404) and a solenoid valve (405) is provided at the connection. A valve core (4095) is sleeved in the valve housing (4091). The valve core (4095) is located above the side nozzle three (4094). The upper end of the valve core (4095) is closed and the lower end is open. A valve hole is opened on the outer circumferential surface of the valve core (4095). Two valve holes are arranged in an array along the circumferential direction of the valve core (4095). The valve hole and the side nozzle one (4092) are located on the same straight line. A valve pipe (4096) is connected to the inner hole of one of the two valve holes. The end of the valve pipe (4096) is rotatably connected to the bottom nozzle (4097).

2. The energy-saving injection molding machine shooting platform according to claim 1 is characterized in that: A nozzle (1022) is provided at the highest point of the outer circumferential surface of the injection tube (1021); the upper end of the nozzle (1022) is connected to a feeding tube (201); and the upper end of the feeding tube (201) is connected to a barrel (200).

3. The energy-saving injection molding machine shooting platform according to claim 1 is characterized in that: There is a gap between the push screw (1024) and the wall of the injection tube (1021).

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