Automatic injection molding system for plastic mold

Abstract

The invention relates to the field of injection molding equipment, and discloses a plastic mold automatic injection molding system which comprises a material distribution output mechanism located on a fixed mold plate, and the material distribution output mechanism is matched with a volute pool and a transfer pool to be used for conveying plastic particle raw materials and conducting refining and flow dividing at the same time; the split-flow melting mechanism is located on the movable mold plate and matched with the volute pool to heat conveyed plastic raw materials in a split-flow and flat-laying mode; and the auxiliary material input mechanism is positioned on the fixed rack. A material distribution output mechanism (a material guiding screw) is responsible for lifting raw materials from a feeding bottom pool to a volute pool, and refining and crushing are synchronously carried out in the conveying process (friction pressing and grinding are carried out through U-shaped attaching blades of attaching wheels, and rotating and impacting are carried out through impacting paddles). The process is shortened, the equipment complexity and energy consumption are reduced, a dual refining effect is formed by combining friction pressing and grinding of the U-shaped attaching blades with strong impact of the impact paddles, the particle size and the passing diameter of particle raw materials are remarkably reduced, and the surface area of subsequent hot melting is greatly increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection molding equipment, in particular to an automatic injection molding system for plastic molds. BACKGROUND

[0002] The plastic mold is a kind of combined mold for compression molding, extrusion molding, injection molding, blow molding and low foaming molding. The coordinated change of the male and female molds and the auxiliary molding system can process a series of plastic parts with different shapes and sizes. Various tools and products used in our daily production and life, such as the base and body shell of a machine tool, a screw head, a button and the shell of various household appliances, are closely related to molds. The shape of the mold determines the shape of these products, and the machining quality and precision of the mold determine the quality of these products. Because of the differences in material, appearance, specification and purpose of various products, molds are divided into non-plastic molds such as casting molds, forging molds, die casting molds and stamping molds, as well as plastic molds.

[0003] The raw material of the traditional injection molding process needs an independent pre-crushing process (such as using a crusher), which increases equipment investment, land occupation and energy consumption. The pre-crushed raw material needs to be transferred to the hopper of the injection molding machine for the second time, which is complicated and easy to be contaminated. The uneven particle size of the crushed material affects the uniformity of the subsequent melting, which depends on a single large screw / barrel melting: the heat transfer area is limited, the melting speed is slow (especially for high viscosity or heat-sensitive materials), the raw material is accumulated in the center area, the heat exchange is insufficient, and "cold core" or local overheating degradation is easy to occur. Maintaining high temperature in a large volume melting cavity leads to serious invalid heat dissipation, and the main and auxiliary materials are usually pre-mixed or injected into the melt before melting: it is easy to cause stratification (such as color master bottom), uneven dispersion, "stripes" or local performance defects, and it is difficult to diffuse uniformly for high viscosity melt. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an automatic injection molding system for plastic molds, which solves the problems of pre-crushing of raw materials, complicated process, high energy consumption, low melting efficiency, poor heat management and uneven dispersion of auxiliary materials in traditional injection molding process, affecting product quality and production efficiency.

[0005] To achieve the above purpose, the present application is realized by the following technical scheme: an automatic injection molding system for plastic molds, comprising: A fixed rack is used for fixing the automatic injection molding system for plastic molds; A guide shaft is located on the fixed rack for displacement of the movable mold for injection molding; A movable mold plate is located on the guide shaft for forming a dynamic mold for plastic injection molding; A fixed mold plate is located on the fixed rack for forming a static mold for plastic injection molding; The feeding bottom pool is located on the fixed frame and is used for receiving and inputting the main plastic forming raw material; The feeding and distributing mechanism is located on the fixed frame and is used for receiving the plastic particle raw material to be refined and distributed; The distributing output mechanism is located on the fixed die plate and is used for transporting the plastic particle raw material while refining and distributing, in cooperation with the volute pool and the transfer pool; The distributing and melting mechanism is located on the movable die plate and is used for heating the transported plastic raw material in the form of distributing and paving, in cooperation with the volute pool; The auxiliary material input mechanism is located on the fixed frame and is used for adding auxiliary raw material while distributing and melting, in cooperation with the through slot structure of the mixing convex pipe; The injection molding feeding part is located on the fixed frame and is used for receiving the melted raw material for injection molding.

[0006] Preferably, the guide shafts are distributed and fixed in the fixed frame, the movable die plate slides in the fixed frame along the guide shafts, the fixed die plate is fixed on one side of the fixed frame, the feeding bottom pool is fixed on the side of the fixed frame away from the fixed die plate, the feeding and distributing mechanism is arranged on the side of the fixed frame and above the feeding bottom pool, the distributing output mechanism is embedded in the feeding and distributing mechanism and extends to the bottom of the feeding bottom pool, the distributing and melting mechanism is distributed and arranged on the top of the fixed frame, the auxiliary material input mechanism is arranged on the distributing and melting mechanism, and the injection molding feeding part is fixed on the side of the fixed frame close to the fixed die plate.

[0007] Preferably, the feeding and distributing mechanism includes the volute pool and the transfer pool, the volute pool is fixed on the side wall of the fixed frame and above the feeding bottom pool, the volute pool is composed of an arc-shaped shell and a rectangular shell, and the transfer pool is fixed on the top of the volute pool.

[0008] Preferably, the distributing output mechanism includes the material rotating pipe, the material rotating pipe is fixed on the bottom wall of the volute pool and extends into the transfer pool and the feeding bottom pool respectively, the bottom and the top of the material rotating pipe are provided with discharge through holes, a feeding screw is rotatably arranged in the material rotating pipe, a matching wheel is fixed on the top end of the feeding screw and is sleeved on the top of the material rotating pipe, u-shaped matching blades are fixed on the inner wall of the matching wheel in a circumferential distribution and match the outer wall of the through hole on the top of the material rotating pipe, and flexible guide paddles are fixed on the bottom of the matching wheel in a circumferential distribution and match the inner wall of the volute pool.

[0009] Preferably, the split melting mechanism comprises a top frame fixed on the top of the fixed frame, an integrated seat fixed inside the top frame, parallelly distributed split pipes fixed inside the integrated seat, a mixing convex pipe fixed on the distributed split pipes and close to the material guiding and splitting mechanism, and linearly distributed grading heating elements fixed inside the integrated seat and wrapped outside the split pipes.

[0010] Preferably, the auxiliary material input mechanism comprises a side frame fixed on the top of the top frame and above the mixing convex pipe, a U-shaped material conveying pipe fixed inside the side frame, and two adjacent pipe structures of the U-shaped material conveying pipe embedded into the through slot structure of the mixing convex pipe, the two adjacent pipe structures of the U-shaped material conveying pipe having a conveying screw rotatably embedded inside.

[0011] Preferably, the inside of the U-shaped fitting blade is provided with friction tooth keys and an inclined end angle, and the side wall of the fitting wheel is fixed with circumferentially distributed impact paddles.

[0012] Preferably, the through slot of the mixing convex pipe is arranged on the top of the mixing convex pipe, and the integrated seat is linearly distributed and provided with grading heating elements.

[0013] Preferably, the bottom wall of the U-shaped material conveying pipe is provided with parallelly distributed through holes corresponding to the through slot structure of the mixing convex pipe.

[0014] Preferably, the outer side of the conveying screw is provided with gear structures and the gear structures are intermeshed.

[0015] The present application provides a plastic mold automatic injection molding system. 1. The present application has the advantages of efficient, pretreatment, and fine and conveying capacity of raw materials: the material output mechanism (material guiding screw) not only lifts the raw materials from the material bottom pool to the volute pool, but also synchronously fine and crushes the raw materials (through the friction and pressure grinding of the U-shaped fitting blade of the fitting wheel and the rotation impact of the impact paddle) during the conveying process. This eliminates the traditional independent pre-crushing process, shortens the process, reduces the complexity of the equipment and energy consumption, and the friction and pressure grinding of the U-shaped fitting blade combined with the powerful impact of the impact paddle forms a double fine action, significantly reduces the particle size and passage diameter of the granular raw materials, greatly increases the surface area of the subsequent hot melt, and the flexible guiding paddle rotates tightly against the inner wall of the volute pool to ensure that the fine raw materials are efficiently pushed from the arc-shaped area to the rectangular split area without residue, avoiding the accumulation of raw materials and ensuring the continuous and uniform feeding of the raw materials to the split pipe.

[0016] 2、The present application has parallel melting and mixing capabilities: the shunt melting mechanism adopts a tiled pipeline system composed of multiple groups of parallel distributed material distribution pipes. This fundamentally changes the traditional centralized mode of a single large melting cavity or screw. The dispersion of raw material flow into multiple slender pipes greatly increases the hot melt contact area (the contact area between the inner wall of the pipe and the raw material is much larger than that of the large cavity), significantly improves the heat conduction efficiency, shortens the melting time, and the integrated staged heating elements can independently or zonally control the temperature of each material distribution pipe. This realizes the segmented and precise heating of the raw material in the conveying path, optimizes the thermal history according to the material characteristics and melting state, avoids local overheating degradation or insufficient heating, and ensures uniform melt quality.

[0017] 3、The present application has the ability of auxiliary material synchronous and multi-point precise injection mixing: the auxiliary material input mechanism operates in parallel with the main raw material processing process, injecting auxiliary materials while the main material enters the melting stage, optimizing the overall process time, the double screw reverse rotation design in the U-shaped material conveying pipe ensures uniform distribution and stable conveying of auxiliary materials in the pipe, preventing deposition or segregation of auxiliary materials, and the auxiliary materials are injected into each material distribution pipe corresponding to the mixing convex pipe through the U-shaped material conveying pipe bottom wall through hole. This "distributed and synchronous" mixing (rather than traditional centralized premixing) ensures that the auxiliary material and the main material are mixed immediately and uniformly in each shunt channel, solving the problem of uneven dispersion caused by viscosity difference or insufficient mixing, greatly improving the mixing efficiency and uniformity. Mixing occurs in the material distribution pipe (mixing convex pipe is part of it) and is closely combined with staged heating. The main and auxiliary materials start to melt while mixing, and the mixing process itself also promotes heat conduction and material homogenization.

[0018] 4、The present application optimizes heat management and energy efficiency: the tiled multi-material distribution pipe structure combined with staged heating is the core of improving heat efficiency. Increased surface area and precise temperature control significantly reduce heat energy loss and avoid the need for excessive power to maintain high melt temperature. The refined raw material particles, increased surface area, and distributed melting work together to greatly shorten the conveying distance and time required for the raw material to change from solid to completely molten liquid, further reducing energy consumption. Staged heating means that heat is applied only when the raw material flows through a specific heating section, avoiding the inefficient energy consumption of preheating the entire large melting cavity or maintaining a large amount of melt at high temperature.

[0019] 5, The application has the ability of equipment integration and space optimization: the complex functions such as material guiding, material distributing, refining, auxiliary material adding, melting and mixing are highly integrated in the compact structure of fixed frame, top-mounted frame and side-mounted frame. Although the structure is precise, it avoids the series connection of multiple independent large equipment, and the overall space (especially the vertical space utilization) can be saved. The shunt melting mechanism (material distribution pipe, heating element and mixing convex pipe) is placed in the top-mounted frame, which utilizes the upper space of the equipment, makes the core hot melting area structure compact, and helps to reduce the floor area of the equipment in the operation level. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a three-dimensional schematic diagram of the main structure of the application Figure 1 ; Figure 2 is a three-dimensional schematic diagram of the main structure of the application Figure 2 ; Figure 3 is a three-dimensional schematic diagram of the main structure of the application Figure 3 ; Figure 4 is a schematic diagram of the internal structure combination of the fixed frame of the application; Figure 5 is a schematic diagram of the external structure combination of the fixed frame of the application; Figure 6 is a schematic diagram of the combination of the material guiding and distributing mechanism and the material distribution output mechanism of the application Figure 1 ; Figure 7 is a schematic diagram of the combination of the material guiding and distributing mechanism and the material distribution output mechanism of the application Figure 2 ; Figure 8 is a schematic diagram of the material distribution output mechanism structure of the application; Figure 9 is a schematic diagram of the internal structure of the application; Figure 10 is a schematic diagram of the combination of the shunt melting mechanism and the auxiliary material input mechanism structure of the application Figure 11 is a schematic diagram of the shunt melting mechanism structure of the application; Figure 12 is a schematic diagram of the auxiliary material input mechanism structure of the application.

[0021] Wherein, 1, fixed rack; 2, guide shaft; 3, movable template; 4, fixed template; 5, into the material bottom pool; 6, guide material distribution mechanism; 7, distribution output mechanism; 8, shunt melting mechanism; 9, auxiliary material input mechanism; 10, injection molding guide material piece; 61, volute pool; 62, transfer pool; 71, transfer pipe; 72, guide screw; 73, fit wheel; 74, u-shaped fit blade; 75, impact paddle; 76, flexible guide paddle; 81, top rack; 82, integrated seat; 83, distribution pipe; 84, mixing convex pipe; 85, hierarchical heating element; 86, multi-pass transfer pipe; 91, side rack; 92, U-shaped conveying pipe; 93, conveying screw; 94, feeding hopper. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0023] Please refer to the accompanying drawings of the present application Figure 1 - the accompanying drawings of the present application Figure 3The embodiment of the present application provides a kind of plastic mold automatic injection molding system, comprising: fixed rack 1, for the fixation of plastic mold automatic injection molding system;Guide shaft 2 is located on fixed rack 1, for the displacement of movable mold of injection molding operation;Movable mold plate 3 is located on guide shaft 2, for forming the dynamic mold of plastic injection molding;Fixed mold plate 4 is located on fixed rack 1, for forming the static mold of plastic injection molding;Material inlet bottom pool 5 is located on fixed rack 1, for receiving and inputting plastic forming main raw material, guide shaft 2 is distributed fixed in fixed rack 1, movable mold plate 3 slides in fixed rack 1 along guide shaft 2, fixed mold plate 4 is fixed in one side of fixed rack 1, material inlet bottom pool 5 is fixed in the side of fixed rack 1 away from fixed mold plate 4, material guiding and distributing mechanism 6 is arranged in the side of fixed rack 1 and is located above material inlet bottom pool 5, distributing output mechanism 7 is embedded in material guiding and distributing mechanism 6 and extends to the bottom of material inlet bottom pool 5, shunt melting mechanism 8 is distributed and arranged on the top of fixed rack 1, auxiliary material input mechanism 9 is arranged on shunt melting mechanism 8, injection material guiding part 10 is fixed on the side of fixed rack 1 close to fixed mold plate 4, injection material guiding part 10 is located on fixed rack 1, for receiving raw material after melting to injection molding, the equipment mainly carries out the operation of plastic injection molding, and the whole equipment is fixed around fixed rack 1, and the granular raw material before plastic injection molding is poured into the material inlet bottom pool 5 installed on one side of fixed rack 1, then the distributing output mechanism 7 installed in material guiding and distributing mechanism 6 and material inlet bottom pool 5 is used to draw the granular raw material into material guiding and distributing mechanism 6 in a top-down manner, while the raw material enters material guiding and distributing mechanism 6, the distributing output mechanism 7 will carry out refinement operation synchronously to reduce the diameter of the granular raw material, and then the refined raw material is shunted into shunt melting mechanism 8 by cooperating with material guiding and distributing mechanism 6, a plurality of flat pipeline systems contained in shunt melting mechanism 8 are used to drive the raw material to be conveyed in a flat manner at the bottom of fixed rack 1 and to be heat-melted to increase the contact area of granular heat-melted, while the auxiliary material input mechanism 9 installed on shunt melting mechanism 8 itself conveys auxiliary raw material, synchronously injects auxiliary raw material into the pipeline system of shunt melting mechanism 8, mixes with the refined main raw material, and is heat-melted together, finally injected into injection material guiding part 10 by shunt melting mechanism 8, and the movable mold plate 3 installed in fixed rack 1 is displaced along guide shaft 2 and covers fixed mold plate 4 to form a mold structure, and the injection material guiding part 10 presses the injected mixed raw material into the mold formed by movable mold plate 3 and fixed mold plate 4 to carry out the final injection molding operation.

[0024] Please refer to the attached drawings Figure 1 -attached drawings Figure 7The material guiding and distributing mechanism 6 is located on the fixed frame 1 and is used to receive the plastic particle raw material to be refined and distributed, and includes a volute pool 61 and a transfer pool 62. The volute pool 61 is fixed to the side wall of the fixed frame 1 and is located above the material inlet bottom pool 5. The volute pool 61 is composed of an arc-shaped shell and a rectangular shell. The transfer pool 62 is fixed to the top of the volute pool 61. First, the material guiding and distributing mechanism 6 includes the volute pool 61 which is installed on one side of the top of the fixed frame 1. The entering plastic raw material can be guided by the rectangular shell structure of the volute pool 61 to the distribution melting mechanism 8. The particle raw material which is previously poured into the material inlet bottom pool 5 is guided by the material distribution output mechanism 7 to the volute pool 61 and then enters the transfer pool 62 by free fall.

[0025] Please refer to the attached drawings Figure 1 -attached drawings Figure 9, the distributing and outputting mechanism 7 is located on the fixed mold plate 4, cooperates with the volute pool 61 and the transfer pool 62 to transport the plastic particle raw materials and simultaneously performs refining and distribution, the distributing and outputting mechanism 7 comprises a material rotating pipe 71, the material rotating pipe 71 is fixed on the bottom wall of the volute pool 61 and extends into the transfer pool 62 and the material bottom pool 5 respectively, the bottom and the top of the material rotating pipe 71 are provided with discharge holes, a material guiding screw 72 is rotatably arranged in the material rotating pipe 71, the top end of the material guiding screw 72 is fixedly provided with a matching wheel 73 which is sleeved on the top of the material rotating pipe 71, the inner wall of the matching wheel 73 is fixedly provided with u-shaped matching blades 74 which are circumferentially distributed and match the outer wall of the top hole of the material rotating pipe 71, the bottom of the matching wheel 73 is fixedly provided with circumferentially distributed flexible guiding paddles 76 which match the inner wall of the volute pool 61 and rotate with the matching wheel 73, the inner side of the u-shaped matching blades 74 is provided with friction tooth keys and inclined end angles, the side wall of the matching wheel 73 is fixedly provided with circumferentially distributed impact paddles 75, and the material rotating pipe 71 of the distributing and outputting mechanism 7 is fixed on the volute pool 61 and extends to the bottom wall of the material bottom pool 5, the material rotating pipe 71 is provided with discharge holes for feeding and discharging at the bottom and the top respectively, when the material guiding screw 72 embedded in the material rotating pipe 71 is driven to rotate, the material guiding screw 72 forms a pumping force in the material rotating pipe 71, the particle raw materials in the material bottom pool 5 are driven to enter the material rotating pipe 71 through the bottom discharge hole of the material rotating pipe 71, and then are continuously pushed to the upper part of the material rotating pipe 71 by the material guiding screw 72, and then are discharged into the transfer pool 62 through the discharge hole in the upper part of the material rotating pipe 71 and contact the matching wheel 73 sleeved on the top of the material rotating pipe 71, the matching wheel 73 rotates with the continuously operating material guiding screw 72 and drives the u-shaped matching blades 74 on the inner wall to rotate, the particle raw materials discharged from the discharge hole of the material rotating pipe 71 enter the inner wall of the u-shaped matching blades 74 by using the inclined end angles of the u-shaped matching blades 74, and the particle raw materials are refined and ground at the same time by the full contact of the rotating force and the friction tooth keys, the impact paddles 75 on the bottom of the matching wheel 73 rotate with the material guiding screw 72, and the rotating impact force of the impact paddles 75 further refines and crushes the particle raw materials for subsequent distribution, the refined particle raw materials fall into the volute pool 61, and the flexible guiding paddles 76 on the bottom of the matching wheel 73 match the inner wall of the volute pool 61 and rotate with the matching wheel 73, the flexible material of the flexible guiding paddles 76 enables the outer side to always match the inner side of the arc-shaped shell and the rectangular shell of the volute pool 61 during rotation, so that the refined raw materials gathered in the volute pool 61 can be pushed away from the arc-shaped shell of the volute pool 61 by the flexible guiding paddles 76 and enter the rectangular shell of the volute pool 61, and then are distributed and pushed into the distributing and melting mechanism 8 by the rectangular shell.

[0026] Please refer to the attached drawings Figure 1 - the attached drawings Figure 11The shunt melting mechanism 8 is located on the movable die plate 3 and cooperates with the volute pool 61 to heat the delivered plastic raw material in a shunt paving manner. The shunt melting mechanism 8 comprises a top rack 81 and a multi-pass transfer pipe 86. The top rack 81 is fixed on the top of the fixed frame 1. The top rack 81 is internally fixed with integrated seats 82 arranged in a straight line. The integrated seats 82 are internally fixed with shunt pipes 83 arranged in parallel. The mixing convex pipes 84 are correspondingly fixed on the distributed shunt pipes 83 and are close to the material guiding and shunting mechanism 6. The integrated seats 82 are internally fixed with grading heating elements 85 arranged in a linear manner. The grading heating elements 85 are wrapped outside the shunt pipes 83. The multi-pass transfer pipe 86 is arranged on one side of the top rack 81 close to the injection molding material guiding part 10. The multi-pass input port is connected with the output ports of all the shunt pipes 83. The through slot of the mixing convex pipe 84 is arranged on the top of the mixing convex pipe 84. The integrated seats 82 are internally arranged with the grading heating elements 85 arranged in a linear manner. The top rack 81 of the shunt melting mechanism 8 is additionally installed on the top of the fixed frame 1 and gradually reduces the volume of the injection molding equipment. The integrated seats 82 additionally installed in the top rack 81 are responsible for fixing multiple groups of shunt pipes 83 arranged in parallel. The refined particle raw material entering the rectangular shell of the volute pool 61 is pushed by the flexible guiding paddle 76 and is shunted into the shunt pipes 83 arranged in parallel. The refined particle raw material is continuously delivered by the shunt pipes 83. The mixing convex pipes 84 respectively additionally installed on the shunt pipes 83 form the mixing space in the delivery process. The mixing convex pipe 84 arranged on each shunt pipe 83 receives the raw material auxiliary material distributed by the auxiliary material input mechanism 9 through the through slot additionally installed on the top of the mixing convex pipe 84 and is mixed with the refined particle raw material delivered by the shunt pipe 83 in the mixing convex pipe 84 to form the mixed raw material for final injection molding.

[0027] Please refer to the attached drawings Figure 1 -attached drawings Figure 12The auxiliary material input mechanism 9 is located on the fixed frame 1, cooperates with the through groove structure of the mixing convex pipe 84 for adding auxiliary raw materials during the distribution of the molten, and includes a side rack 91 fixed on the top of the top rack 81 and located above the mixing convex pipe 84. The U-shaped conveying pipe 92 is fixed inside the side rack 91, and the two adjacent pipe structures of the U-shaped conveying pipe 92 are embedded into the through groove structure of the mixing convex pipe 84. The conveying screw 93 is embedded in the two adjacent pipes inside the U-shaped conveying pipe 92. The feeding hopper 94 is arranged on the top of the side rack 91, and the bottom port of the feeding hopper 94 is connected with the input port of the one side pipe structure of the U-shaped conveying pipe 92. The U-shaped conveying pipe 92 is provided with through holes arranged in parallel, and corresponds to the through groove structure of the mixing convex pipe 84. The outer side of the conveying screw 93 is provided with gear structure, and the gear structures are engaged with each other. The side rack 91 included in the auxiliary material input mechanism 9 is fixed on the top rack 81 and located in the installation position of the mixing convex pipe 84. The feeding hopper 94 added on the top of the side rack 91 first receives raw materials and is conveyed into the U-shaped conveying pipe 92 fixed in the side rack 91. The U-shaped conveying pipe 92 has two groups of adjacent pipe structures, and the two side pipes can communicate with each other. The raw materials input by the feeding hopper 94 enter into the one side pipe of the U-shaped conveying pipe 92. A group of conveying screws 93 are respectively embedded in the two side pipes of the U-shaped conveying pipe 92, and the gear structures of the output shafts of the two conveying screws 93 are engaged with each other, so that the rotating output directions of the two groups of conveying screws 93 are opposite, and the raw materials in the U-shaped conveying pipe 92 are conveyed along the two side pipes of the U-shaped conveying pipe 92. The liquid flow thrust of the granular raw materials conveyed in the distribution pipe 83 drives the raw materials in the U-shaped conveying pipe 92 to be injected into the mixing convex pipe 84 through the through holes arranged on the bottom wall corresponding to the through groove structure of the mixing convex pipe 84, and is mixed with all the refined granular raw materials conveyed in the distribution pipe 83. Through the segmented and synchronous mixing mode, the fusion of the auxiliary materials and the main materials is accelerated. At the same time, the raw materials are segmented and heated by the hierarchical heating elements 85 distributed in the integrated seat 82, so that the raw materials in each distribution pipe 83 are accelerated to melt into liquid state. Finally, the multi-through transfer pipe 86 is used to concentrate the liquid raw materials conveyed by each distribution pipe 83, and the liquid raw materials are conveyed into the injection guide piece 10. Through the internal thrust of the injection guide piece 10, the liquid raw materials are injected into the movable die plate 3 and the fixed die plate 4 closed along the guide shaft 2, and finally the plastic molded piece is formed.

[0028] Working principle: the device mainly carries out the operation of plastic injection molding, the overall device is fixed around the fixed rack 1, the granular raw material before plastic injection molding is poured into the inlet pool 5 added on one side of the fixed rack 1, and the material output mechanism 7 added in the inlet pool 5 and the material guide and distribution mechanism 6 is used to draw the granular raw material into the material guide and distribution mechanism 6 from bottom to top, while the raw material enters the material guide and distribution mechanism 6, the material output mechanism 7 will carry out the refinement operation at the same time, so as to reduce the diameter of the granular raw material, and then the refined raw material is distributed into the shunt melting mechanism 8 through the material guide and distribution mechanism 6, the shunt melting mechanism 8 comprises a plurality of flat pipeline systems, which drives the raw material to be conveyed in a flat manner at the bottom of the fixed rack 1 and subjected to hot melting treatment, so as to increase the contact area of the granular hot melting, the auxiliary material input mechanism 9 added on the shunt melting mechanism 8 is used to convey the auxiliary raw material at the same time, and the auxiliary raw material is injected into the pipeline system of the shunt melting mechanism 8, mixed with the refined main raw material, and subjected to hot melting together, finally injected into the injection material guide 10, the movable die plate 3 added in the fixed rack 1 is displaced along the guide shaft 2 and covers the fixed die plate 4 to form a mold structure, and the injection material guide 10 is used to press the mixed raw material into the mold formed by the movable die plate 3 and the fixed die plate 4 to carry out the final injection molding operation, the material guide and distribution mechanism 6 comprises a volute pool 61 added on one side of the top of the fixed rack 1, the plastic raw material can be guided into the shunt melting mechanism 8 through the rectangular housing structure of the volute pool 61, the granular raw material poured in the inlet pool 5 is guided into the volute pool 61 through the material output mechanism 7, and then falls freely into the transfer pool 62, the material output mechanism 7 comprises a material rotating pipe 71 fixed on the volute pool 61 and extending to the bottom wall of the inlet pool 5, the material rotating pipe 71 is provided with discharge holes for inlet and outlet at the bottom and the top respectively, when the material guide screw 72 embedded in the material rotating pipe 71 rotates, the suction force is formed in the material rotating pipe 71, the granular raw material in the inlet pool 5 is guided into the material rotating pipe 71 through the discharge hole at the bottom of the material rotating pipe 71, and then continuously pushed to the upper part of the material rotating pipe 71 by the material guide screw 72, and then discharged into the transfer pool 62 through the discharge hole at the upper part of the material rotating pipe 71, and contacted with the matching wheel 73 sleeved on the top of the material rotating pipe 71, the matching wheel 73 rotates with the continuously operating material guide screw 72, and drives the u-shaped matching blade 74 distributed on the inner wall to rotate, the granular raw material discharged from the discharge hole of the material rotating pipe 71 is guided into the inner wall of the u-shaped matching blade 74 through the inclined end angle part of the u-shaped matching blade 74, and the granular raw material is refined and crushed at the same time through the rotation and friction tooth key, the impact paddle 75 distributed on the bottom of the matching wheel 73 rotates with the material guide screw 72, and the rotation impact force further refines and crushes the granular raw material,The refined granular raw materials fall into the volute pool 61, and the flexible guide paddle 76 distributed on the bottom circumference of the conforming wheel 73 is attached to the inner wall of the volute pool 61 and rotates with the conforming wheel 73. The flexible material of the flexible guide paddle 76 enables the outer end to always fit in the arc-shaped outer shell and the inner side wall of the rectangular outer shell of the volute pool 61 during rotation, so that the refined raw materials gathered inside the volute pool 61 can be pushed out of the arc-shaped outer shell of the volute pool 61 by the flexible guide paddle 76 and enter the rectangular outer shell of the volute pool 61, and then be pushed into the shunt melting mechanism 8 through the rectangular outer shell. The top-mounted rack 81 included in the shunt melting mechanism 8 is mounted on the top of the fixed rack 1 and gradually reduces the volume of the injection molding equipment. The integrated seat 82 mounted inside the top-mounted rack 81 is responsible for fixing multiple groups of parallelly distributed material distribution pipes 83. The refined granular raw materials entering the rectangular outer shell of the volute pool 61 are pushed into the parallelly arranged material distribution pipes 83 by the flexible guide paddle 76 and then continuously transported by the material distribution pipes 83. The mixing protruding pipes 84 respectively mounted on the material distribution pipes 83 form mixing spaces during transportation. Each mixing protruding pipe 84 arranged on the material distribution pipe 83 receives the raw material auxiliary materials distributed by the auxiliary material input mechanism 9 through the top-mounted through slot and mixes with the refined granular raw materials transported by the material distribution pipe 83 in the mixing protruding pipe 84 to form the final injection mixed raw materials. The side-mounted rack 91 included in the auxiliary material input mechanism 9 is fixed on the top-mounted rack 81 and is located at the installation position of the mixing protruding pipe 84. The feeding hopper 94 mounted on the top of the side-mounted rack 91 first receives the raw material auxiliary materials and then transports them into the U-shaped material conveying pipe 92 fixed on the side-mounted rack 91. The U-shaped material conveying pipe 92 has two groups of adjacent pipe structures, and the two side pipes can communicate with each other. The raw materials input by the feeding hopper 94 enter one side pipe of the U-shaped material conveying pipe 92. A group of conveying screws 93 are respectively embedded in the two side pipes of the U-shaped material conveying pipe 92, and the gear structures of the output shafts of the two conveying screws 93 are meshed with each other, so that the rotation output directions of the two groups of conveying screws 93 are opposite, driving the raw material auxiliary materials in the U-shaped material conveying pipe 92 to be transported along the two side pipes of the U-shaped material conveying pipe 92. The liquid flow thrust generated by the granular raw materials transported in the material distribution pipes 83 drives the raw material auxiliary materials in the U-shaped material conveying pipe 92 to be injected into the mixing protruding pipe 84 through the through hole corresponding to the through slot structure of the mixing protruding pipe 84 on the bottom wall, and then mixed with the refined granular raw materials transported in all material distribution pipes 83. Through the segmented and synchronous mixing method, the fusion of the auxiliary materials and the main materials is accelerated. At the same time, the raw materials are subjected to segmented heating by the hierarchical heating elements 85 distributed in the integrated seat 82, driving the raw materials in each material distribution pipe 83 to be accelerated to melt into a liquid state. Finally, the multi-through transfer pipe 86 centrally receives the liquid raw materials transported by each material distribution pipe 83 and then transports them into the injection material guiding part 10. Through the internal thrust of the injection material guiding part 10, the liquid raw materials are injected into the movable die plate 3 and the fixed die plate 4 closed along the guide shaft 2, and finally a plastic molded part is formed.

[0029] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. An automated injection molding system for plastic molds, characterized in that, The utility model relates to a plastic injection molding system, comprising: a fixed frame (1) for fixing the plastic injection molding system; a guide shaft (2) on the fixed frame (1) for moving the mold during the injection molding process; a movable mold plate (3) on the guide shaft (2) for forming the dynamic mold for plastic injection molding; a fixed mold plate (4) on the fixed frame (1) for forming the static mold for plastic injection molding; a feeding pool (5) on the fixed frame (1) for receiving and inputting the main raw materials for plastic molding; a feeding and distributing mechanism (6) on the fixed frame (1) for receiving the plastic particle raw materials to be refined and distributed; a distributing and outputting mechanism (7) on the fixed mold plate (4) for transporting the plastic particle raw materials while refining and distributing them in cooperation with the volute pool (61) and the transfer pool (62); a distributing and melting mechanism (8) on the movable mold plate (3) for heating the transported plastic raw materials in a distributed and flat manner in cooperation with the volute pool (61); a supplementary material inputting mechanism (9) on the fixed frame (1) for adding the auxiliary raw materials while distributing and melting in cooperation with the through slot structure of the mixing convex pipe (84); an injection molding feeding part (10) on the fixed frame (1) for receiving the melted raw materials for injection molding.

2. The automated injection molding system of claim 1, wherein, The guide shaft (2) is distributed and fixed in the fixed frame (1), the movable mold plate (3) slides in the fixed frame (1) along the guide shaft (2), the fixed mold plate (4) is fixed on one side of the fixed frame (1), the feeding pool (5) is fixed on the side of the fixed frame (1) away from the fixed mold plate (4), the feeding and distributing mechanism (6) is arranged on the side of the fixed frame (1) and above the feeding pool (5), the distributing and outputting mechanism (7) is embedded in the feeding and distributing mechanism (6) and extends to the bottom of the feeding pool (5), the distributing and melting mechanism (8) is distributed and arranged on the top of the fixed frame (1), the supplementary material inputting mechanism (9) is arranged on the distributing and melting mechanism (8), and the injection molding feeding part (10) is fixed on the side of the fixed frame (1) close to the fixed mold plate (4).

3. The automated injection molding system of claim 1, wherein, The feeding and distributing mechanism (6) comprises a volute pool (61) and a transfer pool (62), the volute pool (61) is fixed on the side wall of the fixed frame (1) and above the feeding pool (5), the volute pool (61) is composed of an arc-shaped shell and a rectangular shell, and the transfer pool (62) is fixed on the top of the volute pool (61).

4. The automated injection molding system of claim 1, wherein, The material output mechanism (7) includes a material transfer pipe (71) fixed on the bottom wall of the volute pool (61) and extending into the intermediate transfer pool (62) and the material inlet bottom pool (5) respectively, the bottom and top of the material transfer pipe (71) are provided with discharge holes, a material guide screw (72) is rotatably arranged in the material transfer pipe (71), the top end of the material guide screw (72) is fixed with a matching wheel (73) sleeved on the top of the material transfer pipe (71), the inner wall of the matching wheel (73) is fixed with u-shaped matching blades (74) circumferentially distributed and matched with the outer wall of the top hole of the material transfer pipe (71), the bottom of the matching wheel (73) is fixed with circumferentially distributed flexible guide paddles (76) matched with the inner wall of the volute pool (61).

5. The automated injection molding system of claim 1, wherein, The material output mechanism (7) includes a material transfer pipe (71) fixed on the bottom wall of the volute pool (61) and extending into the intermediate transfer pool (62) and the material inlet bottom pool (5) respectively, the bottom and top of the material transfer pipe (71) are provided with discharge holes, a material guide screw (72) is rotatably arranged in the material transfer pipe (71), the top end of the material guide screw (72) is fixed with a matching wheel (73) sleeved on the top of the material transfer pipe (71), the inner wall of the matching wheel (73) is fixed with u-shaped matching blades (74) circumferentially distributed and matched with the outer wall of the top hole of the material transfer pipe (71), the bottom of the matching wheel (73) is fixed with circumferentially distributed flexible guide paddles (76) matched with the inner wall of the volute pool (61).

6. The automated injection molding system of claim 1, wherein, The auxiliary material input mechanism (9) includes a side rack (91) fixed on the top of the top rack (81) and located above the mixing convex pipe (84), a U-shaped material conveying pipe (92) is fixed in the side rack (91), and two adjacent pipe structures of the U-shaped material conveying pipe (92) are embedded into the slot structure of the mixing convex pipe (84), a conveying screw (93) is rotatably arranged in the two adjacent pipes of the U-shaped material conveying pipe (92), and a feeding hopper (94) is arranged on the top of the side rack (91), and the bottom port of the feeding hopper (94) is connected with the input port of one side pipe structure of the U-shaped material conveying pipe (92).

7. The automated injection molding system of claim 4, wherein, The u-shaped matching blade (74) is provided with friction teeth and an inclined end corner on the inner side, and the side wall of the matching wheel (73) is fixed with circumferentially distributed impact paddles (75).

8. The automatic injection molding system for plastic molds according to claim 5, wherein, The slot of the mixing convex pipe (84) is arranged on the top of the mixing convex pipe (84), and the integrated seat (82) is linearly distributed and provided with the hierarchical heating element (85).

9. The automated injection molding system of claim 6, wherein, The bottom wall of the U-shaped material conveying pipe (92) is provided with parallelly distributed holes corresponding to the slot structure of the mixing convex pipe (84).

10. The automated injection molding system of claim 6, wherein, The outer side end of the conveying screw (93) is provided with a gear structure and is meshed with each other.

Images