Plastic mold injection system and injection molding process

Abstract

The present invention discloses a plastic mold injection molding system and an injection molding process, which relates to the field of mold injection molding technology, and solves the problem that in the process of pushing the plastic material into the mold, it is difficult to push the plastic material into the mold, which affects the quality of the plastic product after molding. The plastic mold injection molding system includes an injection molding base, and the interior of the injection molding base is installed with an injection molding docking assembly extending to the outside, and a demolding injection molding assembly is installed on one side of the top of the injection molding docking assembly, and a plastic injection molding mechanism is arranged on the other side of the top of the injection molding docking assembly. The plastic injection molding mechanism and the demolding injection molding assembly are in the same horizontal plane, and the plastic injection molding mechanism extends to the interior of the demolding injection molding assembly. In the present invention, the plastic raw material can be pushed to the interior of the mold by rotating the spiral pusher blade and horizontally moving the pusher protrusion, ensuring that the content of the plastic raw material inside the mold is 95%, thereby improving the quality of the plastic product after molding.

Description

Technical Field

[0001] The invention relates to the technical field of mold injection molding, in particular to a plastic mold injection molding system and an injection molding process. Background Art

[0002] The mold injection molding process heats the plastic raw material to make it a viscous melt, then injects it into the closed mold cavity under high pressure, and obtains the desired product after pressure maintenance and cooling. It can produce products such as kitchen utensils, electrical equipment housings, small toys, and auto parts, and is suitable for many fields including machinery and medical treatment.

[0003] The existing Chinese patent application with application publication number CN116749444A discloses a plastic mold injection system, including a base, an injection molding machine and a protective shell are arranged above the base, the injection molding machine is arranged inside the protective shell, the injection molding machine is composed of a transmission system, an injection system, a mold clamping system and an ejection system, a material pipe is arranged in the injection system, an annular fixed block is installed on the outer wall of the end of the material pipe, the side wall of the fixed block is integrally connected with a nozzle, the nozzle is funnel-shaped, the outer wall of the end of the material pipe located in the nozzle is symmetrically provided with nozzle assemblies, the two nozzle assemblies cooperate to block the material pipe and clean the plastic solution attached to the port, two push assemblies and a drive assembly are respectively arranged in the fixed block, and the push assembly and the drive assembly are both connected to the nozzle assembly; this invention, by placing the drive source outside the material pipe, the high-temperature plastic solution will not affect it, which is convenient for the drive source to dissipate heat and extend the service life.

[0004] However, the mold injection system has the following defects when used:

[0005] 1. When the existing mold injection system is producing and processing plastic products, in order to ensure that the molded plastic products will not produce empty packages and to ensure the quality of the plastic products, it is necessary to push the plastic material into the mold during the injection molding process. However, in the process of pushing the plastic material into the mold, due to the content and structure (spherical) of the plastic material itself inside the mold, when the traditional screw rod is used to push the plastic material, the problem of the plastic material being difficult to push into the mold will occur, which affects the quality of the plastic product after molding;

[0006] 2. After the existing mold injection system completes the production and processing of plastic products, it is necessary to open the upper and lower mold bases of the mold and take out the plastic products inside the mold. At this time, the traditional solution generally adopts the method of disassembly by the staff, which is inconvenient to operate. At the same time, when the staff disassembles the plastic products adhered to the inside of the mold, it is inevitable to scratch the surface of the plastic products, affecting the aesthetics of the plastic products. Summary of the invention

[0007] The object of the present invention is to provide a plastic mold injection molding system and an injection molding process to solve the problems raised in the above background technology.

[0008] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0009] The present invention provides a plastic mold injection molding system, comprising an injection molding base, wherein an injection molding docking assembly extending to the outside is installed inside the injection molding base, a demoulding injection molding assembly is installed on one side of the top of the injection molding docking assembly, and a plastic injection molding mechanism is arranged on the other side of the top of the injection molding docking assembly.

[0010] The plastic injection molding mechanism and the demoulding injection molding component are in the same horizontal plane, and the plastic injection molding mechanism extends to the interior of the demoulding injection molding component.

[0011] Wherein, the plastic injection molding mechanism includes:

[0012] An upper mold assembly, the upper mold assembly is mounted on the other side of the top of the injection molding docking assembly, an extrusion tank extending to the outside is mounted inside the upper mold assembly, and the extrusion tank is mounted on the top of the upper mold assembly;

[0013] An automated injection molding assembly is installed on a side of the extrusion tank away from the upper mold assembly, the automated injection molding assembly extends to the interior of the extrusion tank, a gas heating assembly is installed on the outside of the extrusion tank, and the gas heating assembly is installed on the top of the upper mold assembly.

[0014] A feed port is installed on the top of the extrusion tank on one side close to the automated injection molding component.

[0015] As a preferred embodiment of the present invention, the injection molding docking assembly includes:

[0016] A servo motor, the servo motor is installed on the side of the injection molding base, the output end of the servo motor is connected to a main shaft, the outer side of the main shaft is connected to a transmission belt through a key-connected synchronous wheel, and the transmission belt is movably arranged on the side of the injection molding base;

[0017] a first reciprocating screw rod, the first reciprocating screw rod is connected to the inner side of the transmission belt through a synchronous wheel connected with an outer key, the first reciprocating screw rod extends to the inside of the injection molding base, and a second reciprocating screw rod is installed at the bottom of the first reciprocating screw rod,

[0018] Wherein, the second reciprocating screw is rotatably connected to the inside of the injection molding base.

[0019] As a preferred embodiment of the present invention, the spiral raceways provided inside the first reciprocating screw and the second reciprocating screw are in opposite directions, and the outer sides of the first reciprocating screw and the second reciprocating screw are both connected to a sliding seat via a ball bearing.

[0020] The sliding seat is slidably connected to the inside of the servo motor, a demoulding injection molding component is installed on the top of one sliding seat by screws, and an upper mold component, an automated injection molding component and a gas heating component are installed on the top of the other sliding seat by screws.

[0021] The bottoms of the left and right sides of the sliding seat are recessed inwards and are slidably connected to the guide rails. Two guide rails are provided and are respectively installed on both sides of the top of the injection molding base.

[0022] As a preferred embodiment of the present invention, the demoulding injection molding component includes:

[0023] An upper mounting frame is mounted on the top of one of the sliding seats by screws, a demoulding cylinder is installed inside the upper mounting frame, and the output end of the demoulding cylinder is connected to the lower mold seat,

[0024] Wherein, the lower die seat is movably arranged on the side of the upper mounting frame, and guide rods are installed on the left and right sides of the lower die seat, and the guide rods extend to the inside of the upper mounting frame;

[0025] The lower injection mold is mounted on the side of the lower mold base by screws, and the interior of the lower injection mold is slidably connected with a demoulding rod that penetrates the lower mold base, and the demoulding rod is mounted on the side of the upper mounting frame.

[0026] Wherein, a return spring installed between the upper mounting frame and the lower die seat is arranged on the outer side of the demoulding rod, and the demoulding rod is arranged on the side of the guide rod.

[0027] As a preferred embodiment of the present invention, the upper mold assembly includes:

[0028] An assembly rack, the assembly rack is mounted on the top of another of the sliding seats by screws, a mounting bracket is mounted on one side of the top of the assembly rack, and an upper die seat is mounted on the side of the mounting bracket;

[0029] The injection upper mold is mounted on the side of the upper mold base by screws, and an injection cavity is provided on the side of the injection upper mold away from the upper mold base.

[0030] The inner side of the injection cavity is connected with an input nozzle, the input nozzle extends to the outer side of the upper mold base, and the input nozzle is connected with the extrusion tank.

[0031] As a preferred embodiment of the present invention, the automated injection molding assembly comprises:

[0032] A side bracket, wherein the side bracket is installed on the side of the extrusion tank, a servo electric cylinder is installed on the side of the side bracket away from the extrusion tank, an output end of the servo electric cylinder is connected to a telescopic disk, and the telescopic disk and the side bracket are slidably connected;

[0033] A push rod, the push rod is rotatably connected to the side of the telescopic disk, the push rod extends to the inside of the extrusion tank, the side of the push rod is equipped with a spiral push blade, and the spiral push blade is movably arranged inside the extrusion tank;

[0034] A pushing lug is installed on the side of the spiral pushing blade.

[0035] As a preferred solution of the present invention, a guide groove is provided on the outer surface of the push rod, and an intermediate gear is slidably connected to the outer side of the push rod through the guide groove, and the intermediate gear is rotatably connected to the inside of the side bracket.

[0036] The side of the intermediate gear is meshed with a main gear, the main gear is rotatably connected to the eccentric part inside the side bracket, and the main gear is connected to the output end of the linear motor.

[0037] Wherein, the linear motor is mounted on the side of the mounting block, and the mounting block is mounted inside the side bracket by screws.

[0038] As a preferred embodiment of the present invention, the side of the pusher protrusion close to the input nozzle is configured as a truncated cone with a narrow top and a wide bottom, and the truncated cone-shaped pusher protrusion matches the structure of the extrusion tank.

[0039] Wherein, the cross-sectional area of ​​the pushing protrusion is smaller than the cross-sectional area of ​​the extrusion tank.

[0040] As a preferred embodiment of the present invention, the gas heating assembly comprises:

[0041] A gas heating module, wherein the gas heating module is installed on the top of the assembly frame, the gas heating module is arranged on one side of the extrusion tank, the output end of the gas heating module is connected to a gas pipeline, and the gas pipeline is provided with a plurality of gas outlets;

[0042] A heating sleeve, wherein a plurality of heating sleeves are provided, and the plurality of heating sleeves are all connected to the gas pipeline, and the heating sleeves are sleeved on the outside of the extrusion tank;

[0043] A circulation pump is installed on the top of the assembly frame, and the circulation pump is located on the other side of the extrusion tank. The inlet of the circulation pump is connected to the heating sleeve through a pipeline, and the outlet of the circulation pump is connected to the gas heating module through a pipeline.

[0044] The present invention also provides a plastic mold injection molding process, comprising the following steps:

[0045] S1. Mold closing: First, the demoulding injection molding component and the upper mold component are pressed together by the injection molding docking component, and an injection molding space is formed between the demoulding injection molding component and the upper mold component, preparing for injection molding processing;

[0046] S2, Filling: After that, the plastic raw material poured into the extrusion tank is heated and melted by the gas heating component, and then the heated plastic material is injected into the interior of the upper mold component by the automated injection molding component to fill it to 95% of the capacity;

[0047] S3, ‌Pressure Holding‌: After the plastic material is filled, the automated injection molding assembly continuously applies pressure to compact the melt, increase the density of the plastic, and compensate for the shrinkage of the plastic;

[0048] S4, Cooling and mold opening: The plastic is cooled and solidified in the demolding injection molding component and the upper mold component to avoid deformation. After cooling is completed, the injection molding docking component is started to operate, the demolding injection molding component and the upper mold component are opened to complete the injection molded product, and the molded product is demolded through the operation of the demolding injection molding component.

[0049] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0050] 1. In the plastic mold injection molding system and injection molding process, when the injection molding of plastic products is carried out, the push rod and the spiral push blade can be driven to rotate by gear transmission, so that the plastic raw material set on the outside of the spiral push blade can be automatically moved to the inside of the mold, and the plastic raw material can be automatically extruded. The push rod and the spiral push blade that are rotating at the same time can also be operated by the servo electric cylinder to move a certain distance in the horizontal direction, so as to ensure that the plastic raw material inside the extrusion tank can be more conveniently moved to the inside of the mold, and the plastic raw material will not be unable to move to the inside of the mold due to the structure of the plastic raw material inside the mold (spherical) and the pressure between each other, resulting in the problem that the finished plastic product will be empty and the quality does not meet the standards. In addition, the rotation and horizontal movement of the above-mentioned push rod will not cause interference and conflict, effectively reducing the footprint of the plastic raw material extrusion structure;

[0051] 2. In the plastic mold injection molding system and injection molding process, after the injection molding of the plastic product is completed, the plastic product that is adhered and adsorbed inside the lower injection mold can be driven by the demolding cylinder to move the lower injection mold, and the demolding rod located inside the lower injection mold is moved from the inside of the lower injection mold to the movement of the plastic product, and the plastic product that has completed the injection molding operation is automatically demolded. At this time, through the above-mentioned demolding operation, on the one hand, the probability of causing damage to the surface of the plastic product when demolding the plastic product can be reduced, thereby ensuring the appearance and quality of the plastic product. On the other hand, the automatic demolding method can improve the efficiency of the production and processing of plastic products;

[0052] 3. In the plastic mold injection system and injection molding process, the upper injection mold and the lower injection mold for injection molding are assembled on the sides of the lower mold base and the upper mold base by bolt installation. When it is necessary to produce and process plastic products with different structural shapes, the corresponding upper injection mold and the lower injection mold can be directly replaced. The operation is simple and convenient, and it meets the requirements for the production and processing of different plastic products. At the same time, the closing and opening operations of the upper injection mold and the lower injection mold are automatically realized by screw transmission, ensuring that the entire plastic product processing process is automatic and intelligent;

[0053] 4. In the plastic mold injection molding system and injection molding process, the injection molding materials for the production and processing of plastic products can be heated at multiple points by gas heating and electromagnetic heating, respectively, to increase the contact area of ​​the injection molding materials for heating and softening, and ensure that the injection molding materials inside the extrusion tank and the input nozzle are always in a heated and softened state, making it easier to extrude into the mold. At the same time, the heating operation of the injection molding materials at the input nozzle can effectively avoid the problem of the injection molding materials sticking and clogging the input nozzle, and ensure that the plastic materials delivered to the inside of the mold are more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0055] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0057] Figure 2 It is a schematic diagram of the structure of the present invention as a whole viewed from above;

[0058] Figure 3 It is a structural schematic diagram of the connection between the injection molding base and the injection molding docking assembly of the present invention;

[0059] Figure 4 It is a schematic structural diagram of the connection between the sliding seat and the demoulding injection molding component of the present invention;

[0060] Figure 5 It is a structural schematic diagram of the cross-section view of the connection between the sliding seat and the demoulding injection molding component of the present invention;

[0061] Figure 6 It is a schematic structural diagram of the connection between the upper mold assembly and the extrusion tank of the present invention;

[0062] Figure 7 It is a structural schematic diagram of the connection between the sliding seat and the plastic injection molding mechanism of the present invention;

[0063] Figure 8 It is a structural schematic diagram of a cross-sectional view of the connection between the sliding seat and the plastic injection molding mechanism of the present invention;

[0064] Fig. 9 It is a schematic diagram of the structure of the automated injection molding assembly of the present invention;

[0065] Fig.10 The present invention Fig. 9 Schematic diagram of the structure of the enlarged area A in the middle;

[0066] Fig.11 It is a structural schematic diagram of the connection between the assembly collar and the upper mold assembly of the present invention;

[0067] Fig.12 It is a structural schematic diagram of the cross-sectional view of the connection between the assembly collar and the input nozzle of the present invention;

[0068] In the figure:

[0069] 10. Injection molding base;

[0070] 20. Injection molding docking assembly; 201. Servo motor; 202. Spindle; 203. Transmission belt; 204. First reciprocating screw rod; 205. Second reciprocating screw rod; 206. Sliding seat; 207. Guide rail;

[0071] 30. Demolding injection molding assembly; 301. Upper mounting frame; 302. Demolding cylinder; 303. Lower mold base; 3031. Guide rod; 304. Injection lower mold; 305. Demolding rod; 306. Return spring;

[0072] 40. Plastic injection molding mechanism;

[0073] 50, upper mold assembly; 500, extrusion tank; 5001, feed port; 501, assembly rack; 502, mounting bracket; 503, upper mold base; 504, injection upper mold; 505, injection cavity; 506, input nozzle; 5061, assembly sleeve; 5062, annular heating module; 5063, battery module;

[0074] 60. Automated injection molding assembly; 601. Side bracket; 602. Servo electric cylinder; 603. Telescopic plate; 604. Push rod; 6041. Guide groove; 6042. Intermediate gear; 6043. Main gear; 6044. Linear motor; 6045. Mounting block; 605. Spiral push blade; 606. Push bump;

[0075] 70. Gas heating assembly; 701. Gas heating module; 702. Gas pipeline; 703. Heating sleeve; 704. Circulation pump. DETAILED DESCRIPTION

[0076] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0077] See also Figure 1-Figure 12 The plastic mold injection molding system includes an injection molding base 10, an injection molding docking assembly 20 extending to the outside is installed inside the injection molding base 10, a demolding injection molding assembly 30 is installed on one side of the top of the injection molding docking assembly 20, and a plastic injection molding mechanism 40 is arranged on the other side of the top of the injection molding docking assembly 20. The plastic injection molding mechanism 40 and the demolding injection molding assembly 30 are in the same horizontal plane, and the plastic injection molding mechanism 40 extends to the inside of the demolding injection molding assembly 30, wherein the plastic injection molding mechanism 40 includes an upper mold assembly 50, and the upper mold assembly 50 is installed on the other side of the top of the injection molding docking assembly 20. On one side, an extrusion tank 500 extending to the outside is installed inside the upper mold assembly 50, and the extrusion tank 500 is installed on the top of the upper mold assembly 50; an automated injection molding assembly 60 is installed on the side of the extrusion tank 500 away from the upper mold assembly 50, and the automated injection molding assembly 60 extends to the inside of the extrusion tank 500, and a gas heating assembly 70 is installed on the outside of the extrusion tank 500, and the gas heating assembly 70 is installed on the top of the upper mold assembly 50, and a feed port 5001 is installed on the top of the extrusion tank 500 close to the automated injection molding assembly 60.

[0078] The above working principle: When the plastic product is injection molded, the plastic raw material (particles) can be poured into the interior of the extrusion tank 500 from the feed port 5001, and the plastic raw material is heated and softened by the gas heating component 70 outside the extrusion tank 500. Before the injection molding of the plastic product, the injection molding docking component 20 is first started to operate, and the demolding injection molding component 30 and the upper mold component 50 are connected together to achieve the mold closing operation. After that, the automatic injection molding component 60 is started to operate, and the plastic raw material is pushed into the interior of the demolding injection molding component 30 and the upper mold component 50 by rotating operation to achieve the initial feeding operation of the plastic raw material. At the same time, when the plastic raw material is fed, the automatic injection molding component 60 can be operated to push the plastic raw material into the interior of the demolding injection molding component 30 and the upper mold component 50 by horizontal pushing, so as to ensure that the plastic product after the injection molding is completed will not have problems such as empty packages, thereby improving the yield rate of the plastic product.

[0079] In the present invention, the demoulding injection molding assembly 30 can be operated to demould the plastic product after the injection molding is completed, which can improve the efficiency of the production and processing of the plastic product on the one hand, and ensure the aesthetics of the plastic product when it is disassembled on the other hand.

[0080] Specific reference Figure 3 The injection molding docking assembly 20 includes a servo motor 201, which is installed on the side of the injection molding base 10. The output end of the servo motor 201 is connected to a main shaft 202. The outer side of the main shaft 202 is connected to a transmission belt 203 through a synchronous wheel connected by a key. The transmission belt 203 is movably arranged on the side of the injection molding base 10; a first reciprocating screw 204, which is connected to the inner side of the transmission belt 203 through a synchronous wheel connected by an outer key, and the first reciprocating screw 204 extends to the inside of the injection molding base 10. A second reciprocating screw 205 is installed at the bottom of the first reciprocating screw 204, wherein the second reciprocating screw 205 is rotatably connected to the inside of the injection molding base 10.

[0081] In this embodiment, the spiral raceways opened inside the first reciprocating screw 204 and the second reciprocating screw 205 are in opposite directions, and the outer sides of the first reciprocating screw 204 and the second reciprocating screw 205 are connected to the sliding seat 206 through balls, wherein the sliding seat 206 is slidably connected to the inside of the servo motor 201, and the top of one sliding seat 206 is installed with a demolding injection molding component 30 by screws, and the top of the other sliding seat 206 is installed with an upper mold component 50, an automated injection molding component 60 and a gas heating component 70 by screws, wherein the bottom of the left and right sides of the sliding seat 206 are recessed inward and are slidably connected to the guide rail 207, and two guide rails 207 are provided, and the two guide rails 207 are respectively installed on both sides of the top of the injection molding base 10.

[0082] In the above embodiment, the design of the spiral raceway direction inside the first reciprocating screw 204 and the second reciprocating screw 205 ensures that when the first reciprocating screw 204 and the second reciprocating screw 205 rotate, the two sliding seats 206 connected by the ball bearings on the outside thereof move in opposite directions, driving the demoulding injection molding assembly 30 and the upper mold assembly 50 to perform the mold closing operation. At the same time, the design of the guide rail 207 ensures the stability of the sliding seat 206 when it moves horizontally.

[0083] In the plastic mold injection molding system of the present invention, when the plastic product injection molding operation is performed, the servo motor 201 can be started to drive the main shaft 202 connected to the output end of the servo motor 201 to rotate. When the main shaft 202 rotates, the transmission belt 203 connected to the outer side through the synchronous wheel will operate, and the first reciprocating screw 204 connected to the inner side of the transmission belt 203 through the synchronous wheel will rotate. At this time, when the first reciprocating screw 204 rotates, the second reciprocating screw 205 connected to the side thereof will rotate together.

[0084] Specific reference Figure 4 and Figure 5 The demoulding injection molding assembly 30 includes an upper mounting frame 301, which is mounted on the top of a sliding seat 206 by screws, a demoulding cylinder 302 is installed inside the upper mounting frame 301, and the output end of the demoulding cylinder 302 is connected to a lower mold base 303, wherein the lower mold base 303 is movably arranged on the side of the upper mounting frame 301, and guide rods 3031 are installed on the left and right sides of the lower mold base 303, and the guide rods 3031 extend to the inside of the upper mounting frame 301; an injection lower mold 304, which is mounted on the side of the lower mold base 303 by screws, and a demoulding rod 305 that penetrates the lower mold base 303 is slidably connected inside the lower mold 304, and the demoulding rod 305 is installed on the side of the upper mounting frame 301, wherein a return spring 306 installed between the upper mounting frame 301 and the lower mold base 303 is arranged on the outer side of the demoulding rod 305, and the demoulding rod 305 is arranged on the side of the guide rod 3031.

[0085] In the plastic mold injection molding system of the present invention, when the demoulding operation of the plastic product is performed, the demoulding cylinder 302 is started to operate, driving the lower mold base 303 and the injection lower mold 304 connected to the output end of the demoulding cylinder 302 to move. At this time, when the injection lower mold 304 moves, the demoulding rod 305 arranged throughout the interior thereof will lift up the plastic product arranged on its side, and automatically realize the demoulding operation of the plastic product. Among them, the guide rod 3031 ensures the stability of the lower mold base 303 when it moves horizontally, and the reset spring 306 reduces the probability of collision damage between the lower mold base 303 and the upper mounting frame 301 during the demoulding operation. At the same time, the injection lower mold 304 and the lower mold base 303 connected by bolts can be replaced accordingly when different injection products are produced and processed.

[0086] Specific reference Figure 6 and Figure 7 The upper mold assembly 50 includes an assembly frame 501, which is installed on the top of another sliding seat 206 by screws, a mounting bracket 502 is installed on one side of the top of the assembly frame 501, and an upper mold base 503 is installed on the side of the mounting bracket 502; an injection molding upper mold 504, which is installed on the side of the upper mold base 503 by screws, and an injection molding cavity 505 is provided on the side of the injection molding upper mold 504 away from the upper mold base 503, wherein the inner side of the injection molding cavity 505 is connected to an input nozzle 506, the input nozzle 506 extends to the outer side of the upper mold base 503, and the input nozzle 506 is connected to the extrusion tank 500.

[0087] In the plastic mold injection system of the present invention, the plastic raw material transmitted to the input nozzle 506 is transmitted to the inside of the injection cavity 505, and the injection molding operation of the plastic product is performed inside the injection cavity 505. Among them, the upper mold base 503 and the injection upper mold 504 are assembled by bolt connection, and the injection upper mold 504 with different structures can be selected according to the production and processing requirements of different plastic products.

[0088] Specific reference Figure 8 , Fig. 9 and Fig.10 The automated injection molding assembly 60 includes a side bracket 601, which is installed on the side of the extrusion tank 500. A servo electric cylinder 602 is installed on the side of the side bracket 601 away from the extrusion tank 500. The output end of the servo electric cylinder 602 is connected to a telescopic disk 603, and the telescopic disk 603 and the side bracket 601 are slidably connected; a push rod 604, which is rotatably connected to the side of the telescopic disk 603, and the push rod 604 extends to the inside of the extrusion tank 500. A spiral pushing blade 605 is installed on the side of the push rod 604, and the spiral pushing blade 605 is movably arranged inside the extrusion tank 500; a pushing bump 606, which is installed on the side of the spiral pushing blade 605.

[0089] In this embodiment, a guide groove 6041 is provided on the outer surface of the push rod 604, and an intermediate gear 6042 is slidably connected to the outer side of the push rod 604 through the guide groove 6041, and the intermediate gear 6042 is rotatably connected to the inside of the side bracket 601, wherein the side of the intermediate gear 6042 is meshingly connected to a main gear 6043, and the main gear 6043 is rotatably connected to the eccentric point inside the side bracket 601, and the main gear 6043 is connected to the output end of the linear motor 6044, wherein the linear motor 6044 is installed on the side of the mounting block 6045, and the mounting block 6045 is installed inside the side bracket 601 by screws.

[0090] In the above embodiment, when it is necessary to drive the spiral push blade 605 to rotate and push the plastic material to move, the linear motor 6044 can be started to operate, driving the main gear 6043 connected to the output end of the linear motor 6044 to rotate. At this time, when the main gear 6043 rotates, the middle gear 6042 meshingly connected to its side will rotate, so that the push rod 604 connected to the inner side of the middle gear 6042 through the guide groove 6041 will rotate. When the push rod 604 rotates, the spiral push blade 605 installed on its side will rotate, and the spiral blade of the spiral push blade 605 will push the plastic material to move.

[0091] In addition, the side of the pusher block 606 close to the input nozzle 506 is configured to be a truncated cone with a narrow top and a wide bottom, and the truncated cone-shaped pusher block 606 matches the structure of the extrusion tank 500 , wherein the cross-sectional area of ​​the pusher block 606 is smaller than the cross-sectional area of ​​the extrusion tank 500 .

[0092] In the plastic mold injection molding system of the present invention, when the plastic product injection molding operation is actually performed, the servo electric cylinder 602 needs to be started to operate, driving the telescopic disk 603 connected to the output end of the servo electric cylinder 602 to move horizontally, and the push rod 604 connected to the side of the telescopic disk 603 to move horizontally. When the push rod 604 moves horizontally, the spiral push blade 605 and the push bump 606 installed on the side thereof will move, and the plastic raw material is pushed and moved by extrusion, thereby ensuring the quality of the plastic product.

[0093] Specific reference Figure 2 and Figure 7 The gas heating assembly 70 includes a gas heating module 701, which is mounted on the top of the assembly frame 501 and arranged on one side of the extrusion tank 500. The output end of the gas heating module 701 is connected to a gas pipeline 702, and the gas pipeline 702 is provided with multiple gas outlets; a heating sleeve 703, which is provided with multiple heating sleeves 703, and the multiple heating sleeves 703 are all connected to the gas pipeline 702, and the heating sleeve 703 is sleeved on the outside of the extrusion tank 500; a circulating pump 704, which is mounted on the top of the assembly frame 501 and is located on the other side of the extrusion tank 500, and the inlet of the circulating pump 704 is connected to the heating sleeve 703 through a pipeline, and the outlet of the circulating pump 704 is connected to the gas heating module 701 through a pipeline.

[0094] In the plastic mold injection molding system of the present invention, when performing the injection molding operation of the plastic product, the plastic raw material needs to be heated and softened. At this time, through the design of the gas heating module 701, the gas transmitted inside it can be heated to ensure that the gas transmitted to the inside of the heating sleeve 703 is heated gas, and the heated gas is used to heat and soften the plastic raw material inside the extrusion tank 500. At the same time, the gas after the heating operation is completed can be re-transmitted to the inside of the gas heating module 701 through the circulation pump 704 for heating, ensuring sustainable heating and softening of the plastic raw material.

[0095] As another embodiment of the present invention, specifically refer to Fig.11 and Fig.12 An assembly sleeve 5061 is installed on the outer side of the input nozzle 506 , and an annular heating module 5062 is installed inside the assembly sleeve 5061 . The annular heating module 5062 is connected to the battery module 5063 through a wire, and the battery module 5063 is installed on the side of the injection mold 504 .

[0096] In the above embodiment, the annular heating module 5062 can be activated by the battery module 5063 to operate and heat the input nozzle 506 disposed inside the annular heating module 5062 to reduce the probability of plastic material being blocked inside the input nozzle 506 .

[0097] See also Figure 1-Figure 12 The injection molding process of the above-mentioned plastic mold injection molding system includes the following steps:

[0098] S1. Mold closing: First, the demoulding injection molding component 30 and the upper mold component 50 are pressed together by the injection molding docking component 20, and an injection molding space is formed between the demoulding injection molding component 30 and the upper mold component 50, preparing for injection molding processing;

[0099] S2, filling: After that, the plastic raw material poured into the extrusion tank 500 is heated and melted by the gas heating component 70, and then the heated plastic material is injected into the upper mold component 50 by the automatic injection molding component 60 to fill it to 95% of the capacity;

[0100] S3, ‌Pressure Holding‌: After the plastic material is filled, the automated injection molding assembly 60 continuously applies pressure to compact the melt, increase the density of the plastic, and compensate for the shrinkage of the plastic;

[0101] S4, cooling and mold opening: The plastic is cooled and solidified in the demolding injection molding component 30 and the upper mold component 50 to avoid deformation. After cooling is completed, the injection molding docking component 20 is started to operate, the demolding injection molding component 30 and the upper mold component 50 are opened to complete the injection molded product, and the demolding injection molding component 30 is operated to demold the completed injection molded product.

[0102] Without limitation, any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent substitutions or changes according to the technical solution and inventive concept of the present invention, should be covered by the protection scope of the present invention.

Claims

1. A plastic mold injection system, comprising an injection molding base (10), characterized in that: An injection molding docking assembly (20) extending to the outside is installed inside the injection molding base (10), a demoulding injection molding assembly (30) is installed on one side of the top of the injection molding docking assembly (20), and a plastic injection molding mechanism (40) is provided on the other side of the top of the injection molding docking assembly (20), and the plastic injection molding mechanism (40) extends to the inside of the demoulding injection molding assembly (30). The plastic injection molding mechanism (40) includes: An upper mold assembly (50), the upper mold assembly (50) being mounted on the other side of the top of the injection molding docking assembly (20), an extrusion tank (500) extending to the outside being mounted inside the upper mold assembly (50), and the extrusion tank (500) being mounted on the top of the upper mold assembly (50); An automated injection molding component (60) is installed on a side of the extrusion tank (500) away from the upper mold component (50), the automated injection molding component (60) extends into the interior of the extrusion tank (500), a gas heating component (70) is installed on the outside of the extrusion tank (500), the gas heating component (70) is installed on the top of the upper mold component (50), and a feed port (5001) is installed on the top of the extrusion tank (500) on a side close to the automated injection molding component (60). The automated injection molding component (60) comprises a servo electric cylinder (602) and a push rod (604); the output end of the servo electric cylinder (602) is connected to a telescopic disk (603); the push rod (604) is rotatably connected to the side of the telescopic disk (603); a spiral push blade (605) is installed on the side of the push rod (604); a guide groove (6041) is provided on the outer surface of the push rod (604); an intermediate gear (6042) is slidably connected to the outer side of the push rod (604) through the guide groove (6041); a main gear (6043) is meshedly connected to the side of the intermediate gear (6042); the main gear (6043) is connected to the output end of the linear motor (6044); The demoulding injection molding component (30) includes: An upper mounting frame (301) is mounted on the top of a sliding seat (206) by means of screws. A demoulding cylinder (302) is mounted inside the upper mounting frame (301). The output end of the demoulding cylinder (302) is connected to a lower mold base (303). The lower die base (303) is movably arranged on the side of the upper mounting frame (301), and guide rods (3031) are installed on the left and right sides of the lower die base (303), and the guide rods (3031) extend to the inside of the upper mounting frame (301); The lower injection mold (304) is mounted on the side of the lower mold base (303) by screws, and the lower injection mold (304) is slidably connected to a demoulding rod (305) that penetrates the lower mold base (303), and the demoulding rod (305) is mounted on the side of the upper mounting frame (301). A return spring (306) installed between the upper mounting frame (301) and the lower die base (303) is arranged on the outer side of the demoulding rod (305), and the demoulding rod (305) is arranged on the side of the guide rod (3031). Wherein, the upper mold assembly (50) comprises: An assembly rack (501), the assembly rack (501) is mounted on the top of another sliding seat (206) by means of screws, a mounting bracket (502) is mounted on one side of the top of the assembly rack (501), and an upper die seat (503) is mounted on the side of the mounting bracket (502); The upper injection mold (504) is mounted on the side of the upper mold base (503) by screws, and an injection cavity (505) is provided on a side of the upper injection mold (504) away from the upper mold base (503). The inner side of the injection cavity (505) is connected to an input nozzle (506), the input nozzle (506) extends to the outer side of the upper mold base (503), and the input nozzle (506) is connected to the extrusion tank (500). An assembly sleeve (5061) is installed on the outside of the input nozzle (506), and an annular heating module (5062) is installed inside the assembly sleeve (5061). The annular heating module (5062) is connected to a battery module (5063) via a wire. The battery module (5063) is installed on the side of the injection mold (504). The pusher protrusion (606) is installed on the side of the spiral pusher blade (605). The side of the material pushing protrusion (606) close to the input nozzle (506) is configured in a truncated cone shape that is narrow at the top and wide at the bottom, and the structure of the material pushing protrusion (606) configured in the truncated cone shape matches that of the extrusion tank (500). The cross-sectional area of ​​the material pushing protrusion (606) is smaller than the cross-sectional area of ​​the extrusion tank (500). Wherein, the gas heating component (70) comprises: A gas heating module (701), the gas heating module (701) is installed on the top of the assembly frame (501), the gas heating module (701) is arranged on one side of the extrusion tank (500), the output end of the gas heating module (701) is connected to a gas pipeline (702), and the gas pipeline (702) is provided with a plurality of gas outlets; A heating sleeve (703), wherein a plurality of heating sleeves (703) are provided, and the plurality of heating sleeves (703) are all connected to the gas pipeline (702), and the heating sleeves (703) are sleeved on the outside of the extrusion tank (500); A circulation pump (704) is installed on the top of the assembly frame (501). The circulation pump (704) is located on the other side of the extrusion tank (500). The inlet of the circulation pump (704) is connected to the heating sleeve (703) through a pipeline, and the outlet of the circulation pump (704) is connected to the gas heating module (701) through a pipeline.

2. The plastic mold injection system according to claim 1, characterized in that: The injection molding docking assembly (20) comprises: A servo motor (201), the servo motor (201) is mounted on a side of the injection molding base (10), the output end of the servo motor (201) is connected to a main shaft (202), the outer side of the main shaft (202) is connected to a transmission belt (203) via a key-connected synchronous wheel, and the transmission belt (203) is movably arranged on the side of the injection molding base (10); a first reciprocating screw (204), the first reciprocating screw (204) being connected to the inner side of the transmission belt (203) via a synchronous wheel connected by an outer key, the first reciprocating screw (204) extending to the inside of the injection molding base (10), and a second reciprocating screw (205) being installed at the bottom of the first reciprocating screw (204), The second reciprocating screw (205) is rotatably connected to the interior of the injection molding base (10).

3. The plastic mold injection system according to claim 2, characterized in that: The spiral raceways provided inside the first reciprocating screw rod (204) and the second reciprocating screw rod (205) are in opposite directions, and the outer sides of the first reciprocating screw rod (204) and the second reciprocating screw rod (205) are both connected to a sliding seat (206) via a ball bearing. The sliding seat (206) is slidably connected to the inside of the servo motor (201), a demoulding injection molding component (30) is installed on the top of one sliding seat (206) by screws, and an upper mold component (50), an automated injection molding component (60) and a gas heating component (70) are installed on the top of the other sliding seat (206) by screws. The bottoms of the left and right sides of the sliding seat (206) are recessed inwards and are slidably connected to the guide rails (207). Two guide rails (207) are provided and are respectively mounted on two sides of the top of the injection molding base (10).

4. The plastic mold injection molding system according to claim 1, characterized in that: The automated injection molding assembly (60) further comprises: A side bracket (601) is installed on the side of the extrusion tank (500). A servo electric cylinder (602) is installed on the side of the side bracket (601) away from the extrusion tank (500). The telescopic plate (603) and the side bracket (601) are slidably connected. The push rod (604) extends to the interior of the extrusion tank (500), and the spiral push blade (605) is movably arranged inside the extrusion tank (500).

5. The plastic mold injection system according to claim 4, characterized in that: The intermediate gear (6042) is rotatably connected to the inside of the side bracket (601), and the main gear (6043) is rotatably connected to the eccentric position inside the side bracket (601). The linear motor (6044) is mounted on the side of the mounting block (6045), and the mounting block (6045) is mounted inside the side bracket (601) by screws.

6. A plastic mold injection molding process, performed by a plastic mold injection molding system according to any one of claims 1 to 5, characterized in that: include: S1, mold closing: the demoulding injection molding component (30) and the upper mold component (50) are brought into contact with each other through the injection molding docking component (20), and an injection molding space is formed between the demoulding injection molding component (30) and the upper mold component (50), so as to prepare for injection molding processing; S2, filling: heating and melting the plastic raw material poured into the extrusion tank (500) by means of the gas heating component (70), and then injecting the heated plastic material into the interior of the upper mold component (50) by means of the automated injection molding component (60), filling the interior to 95% of the capacity; S3, pressure holding: after the plastic material is filled, the automated injection molding assembly (60) continuously applies pressure to compact the melt, increase the density of the plastic, and compensate for the shrinkage of the plastic; S4, cooling and mold opening: the plastic is cooled and solidified in the demoulding injection molding component (30) and the upper mold component (50) to avoid deformation. After the cooling is completed, the injection molding docking component (20) is started to operate, the demoulding injection molding component (30) and the upper mold component (50) are opened to complete the injection molding of the product, and the demoulding injection molding component (30) is operated to demould the completed injection molding product.

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