Multi-color fully automatic rotary mold core automatic assembly welding mechanism

Abstract

The present invention discloses a multi-color fully automatic rotary mold core automatic assembly welding mechanism, including an upper turntable, a lower turntable, a turntable auxiliary mechanism, a first rotary mold core, a second rotary mold core, a third rotary mold core, a first fixed mold core, a second fixed mold core, an oil cylinder, a suction and blowing device, a mold induction switch, a turntable signal receiver, a push rod, a main gun nozzle, a top gun nozzle, a side gun nozzle, a buckle and a sliding push block mechanism. The multi-color in-mold assembly welding mechanism of the present invention has a precise structure, a short molding cycle, convenient installation, low cost, and strong practicality, and is suitable for the production of most similar products. This mechanism breaks the traditional constraints, and completely subverts the traditional multi-material beer-in-mold and external welding process through in-mold assembly and welding integrated molding. The product has a high yield, no obvious marks on the connection parts, perfect appearance, strong sealing, and excellent structural strength. Compared with traditional processes, the number of mold parts is simplified and the overall molding cycle of the product is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to a multi-color fully automatic rotating mold core automatic assembly welding mechanism. Background Art

[0002] In recent years, with the improvement of living standards, people have higher and higher requirements for lightweight, beautiful and hand-feel of various equipment and supplies. Traditional manufacturing processes can no longer meet this growing high-quality requirement. In life, plastic parts have become indispensable accessories for modern products and have an irreplaceable position. Restricted by existing mold technology, some complex plastic products are divided into several parts for injection molding and then installed together. The installation method generally adopts glue bonding, ultrasonic welding and screw fixing connection. There are many assembly processes, which invisibly increases the cost in today's high labor costs, and the product defect rate is also high. There is also an obvious imprint on the joint part after connection, which affects the aesthetics. The structural strength is also smaller than that of one-piece molding. Each component needs to be supported by multiple sets of molds separately, and the production cycle is long. The multi-color fully automatic rotary mold core automatic assembly welding mechanism of the present invention realizes multi-color one-piece molding, solves the molding technology problems of multiple high-tech products such as multi-material molding technology, in-mold assembly technology and in-mold welding, and improves the innovative technology of the mold. Summary of the invention

[0003] The purpose of the utility model is to provide a multi-color fully automatic rotating mold core automatic assembly and welding mechanism to address the defects of the above-mentioned prior art, which can realize the integrated molding of multi-color products in the same set of molds and fully automatic production, avoiding the processes of multiple sets of molds and secondary processing and welding of products, greatly improving the production of multi-color molds, reducing the processing cost and labor cost of the molds, and also greatly shortening the product molding cycle and improving the overall quality of the product.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] A multi-color fully automatic rotary mold core automatic assembly welding mechanism comprises an upper turntable, a lower turntable, a turntable auxiliary mechanism, a first rotary mold core, a second rotary mold core, a third rotary mold core, a first fixed mold core, a second fixed mold core, an oil cylinder, a suction and blowing device, a mold induction switch, a turntable signal receiver, a push rod, a main gun nozzle, a top gun nozzle, a side gun nozzle, a buckle base and a sliding push block mechanism. The upper turntable is installed on the side of the fixed mold to provide power for the first rotary mold core, the lower turntable is installed on the side of the movable mold to provide power for the second rotary mold core, the turntable auxiliary mechanism is installed on the surface of the mold base and the first fixed mold core, and the auxiliary turntable enables the mold core to rotate smoothly. The first rotary mold core, the second rotary mold core, the third rotary mold core, the first fixed mold core and the second fixed mold core are respectively fixed on the side of the fixed mold and the side of the movable mold to provide mold cavities for the first shot, the second shot and the third shot. The oil cylinder is fixed on the surface of the mold base to provide power for the turntable. The suction and blowing devices are respectively processed and fixed on the side of the fixed mold and the side of the movable mold. The side of the fixed mold is the suction device, and the side of the movable mold is the blowing device. The main function is to determine which products to keep the front mold and which to keep the rear mold. The mold sensing switch is installed on the side of the cylinder, mainly controlling the stroke of the cylinder. The turntable signal receiver is installed on the surface of the mold base, mainly controlling the rotation angle of the turntable. The ejector is installed on the machine platform and directly acts on the third rotating mold core through the bottom plate. After the mold is opened, the third rotating mold core is lifted to achieve the effect of loosening the product and ejecting the runner. The main gun nozzle, the ejector nozzle, and the side gun nozzle respectively inject three-shot products. The main gun injects the water cup shell, the side gun injects the water cup inner cup, and the ejector injects the welding part of the third shot product. The buckle base is installed on the hot runner plate and the balance column to control the mold opening order of the mold. The sliding block mechanism is installed on the second fixed mold core, and its main function is to assist the water cup shell product to keep the front mold.

[0006] As a preferred embodiment of the present invention, when the mold is ready on the machine, the main nozzle and the side nozzle are injected at the same time to produce a two-shot product. Then the mold is opened, at which time the outer shell of the water cup will move with the first rotating mold core due to the suction and blowing device and the sliding push block mechanism, while the inner cup of the water cup remains in the rear mold, and then the two rotating mold cores are rotated 180° respectively under the action of the turntable to reach the middle position of the mold. At this time, the outer shell of the water cup and the inner cup are in the same straight line, and finally the mold is closed to inject the third shot, and the outer shell of the water cup and the inner cup are welded together to achieve three-color integrated molding. After the product is formed, the rear mold rotating mold core will be lifted up, and the runner and the product will be ejected together, and the runner will automatically fall off. The product is taken away by the manipulator to complete the fully automatic production.

[0007] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0008] The multi-color fully automatic rotating mold core automatic assembly and welding mechanism of the present invention has a precise structure, increases the production efficiency of the mold, realizes a fully automated production mode of multi-color mold integrated molding, solves many problems in the production of multi-color molds, and is suitable for the product structure of various double-layer water cups. This mechanism solves the injection molding problem of complex multi-color products, realizes in-mold assembly and in-mold welding through precise design, and automatically ejects the problem, completely subverting the traditional multi-material beer-jacketing and mold-outside welding process. The product has a high yield, no obvious marks on the connection parts, perfect appearance, strong sealing, and excellent structural strength. Compared with traditional processes, it simplifies the number of mold parts, shortens the overall molding cycle of the product, greatly reduces the production cost and labor cost of the mold, and injects new impetus into the mold industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the fixed mold side of the present invention;

[0010] Figure 2 It is a schematic diagram of the movable mold side of the present invention;

[0011] Figure 3 It is a schematic diagram of the glue feeding of the three-shot product of the invention;

[0012] Figure 4 It is a schematic diagram of the invented sliding block pushing mechanism;

[0013] Figure 5 The invention is a schematic diagram of the turntable structure;

[0014] Figure 6 This is a schematic diagram of the invented turntable signal controller.

[0015] In the figure: 1. upper turntable; 2. lower turntable; 3. turntable auxiliary mechanism; 4. first rotating mold core; 5. second rotating mold core; 6. third rotating mold core; 7. first fixed mold core; 8. second fixed mold core; 9. oil cylinder; 10. suction and blowing device; 11. mold induction switch; 12. turntable signal receiver; 14. main gun nozzle; 15. top gun nozzle; 16. side gun nozzle; 17. buckle base; 18. sliding block pushing mechanism 19. push plate; 20. shovel base; 21. rack; 22. gear. DETAILED DESCRIPTION

[0016] The specific implementation of the project of the present invention is further described in detail below in conjunction with the accompanying drawings. The following implementation is used to illustrate the mechanism of the present invention, but is not intended to limit the scope of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "surface" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or connected or set in an integral manner. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] See also Figure 1-6 A multi-color fully automatic rotary mold core automatic assembly welding mechanism comprises an upper turntable 1, a lower turntable 2, a turntable auxiliary mechanism 3, a first rotary mold core 4, a second rotary mold core 5, a third rotary mold core 6, a first fixed mold core 7, a second fixed mold core 8, an oil cylinder 9, a suction and blowing device 10, a mold induction switch 11, a turntable signal receiver 12, a push rod, a main gun nozzle 14, a top gun nozzle 15, a side gun nozzle 16, a buckle base 17 and a sliding block mechanism 18. The upper turntable 1 is installed on the side of the fixed mold to provide power for the first rotary mold core 4, the lower turntable 2 is installed on the side of the movable mold to provide power for the second rotary mold core 5, the turntable auxiliary mechanism 3 is installed on the surface of the mold base and the first fixed mold core 7, and the auxiliary turntable enables the mold core to rotate smoothly. The first rotary mold core 4, the second rotary mold core 5, the third rotary mold core 6, the first fixed mold core 7 and the second fixed mold core 8 are respectively fixed on the side of the fixed mold and the side of the movable mold to provide mold cavities for the first shot, the second shot and the third shot, and the oil cylinder 9 is fixed on the surface of the mold base. , providing power for the turntable, the suction and blowing device 10 is respectively processed and fixed on the side of the fixed mold and the side of the movable mold. The side of the fixed mold is the suction device, and the side of the movable mold is the blowing device. The main function is to determine which products to keep the front mold and which to keep the back mold. The mold sensing switch 11 is installed on the side of the oil cylinder 9, mainly controlling the stroke of the oil cylinder 9. The turntable signal receiver 12 is installed on the surface of the mold base, mainly controlling the rotation angle of the turntable. The ejector is installed on the machine platform and directly acts on the third rotating mold core 6 through the bottom plate. After the mold is opened, the third rotating mold core 6 is lifted to achieve the function of ejecting the loose product and ejecting the runner. The main gun nozzle 14, the top gun nozzle 15, and the side gun nozzle 16 are respectively injected into three-shot products. The main gun injects the water cup shell, the side gun injects the water cup inner cup, and the top gun injects the welding part of the third shot product. The buckle base 17 is installed on the hot runner plate and the balance column to control the mold opening order of the mold. The sliding block mechanism 18 is installed on the second fixed mold core 8, and its main function is to assist the water cup shell product to keep the front mold.

[0019] In this embodiment, please refer to Figure 1 When the mold is ready on the machine, the main nozzle 14 and the side nozzle 16 are injected at the same time to produce two-shot products. Then the mold is opened. At this time, the outer shell of the water cup will move with the first rotating mold core 4 due to the suction and blowing device and the sliding push block mechanism, while the inner cup of the water cup remains in the rear mold. Then the two rotating mold cores are rotated 180° respectively under the action of the turntable to reach the middle position of the mold. At this time, the outer shell of the water cup and the inner cup are in the same straight line. Finally, the mold is closed and the third shot is injected to weld the outer shell of the water cup and the inner cup together to achieve three-color integrated molding. After the product is formed, the rear mold rotating mold core will be lifted up to eject the runner and the product together. The runner automatically falls off, and the product is taken away by the manipulator to complete the fully automatic production.

[0020] When a multi-color fully automatic rotating mold core automatic assembly welding mechanism is used, after the mold is ready on the machine, the main gun nozzle 14 and the side gun nozzle 16 are injected at the same time to produce two shots of the product. Then the mold is opened, at this time the water cup shell will move with the first rotating mold core 4 due to the suction and blowing device and the sliding block mechanism, while the inner cup of the water cup remains in the rear mold, and then the two rotating mold cores are respectively rotated 180° under the action of the turntable to reach the middle position of the mold, at this time the water cup shell and the inner cup are in the same straight line, and finally the mold is closed to inject the third shot, the water cup shell and the inner cup are welded together, and three-color integrated molding is realized. After the product is formed, the rear mold rotating mold core will be lifted up, and the runner and the product will be ejected together, and the runner will automatically fall off. The product is taken away by the manipulator to complete the fully automatic production. It should be noted that the present invention is a multi-color fully automatic rotating mold core automatic assembly welding mechanism, and each component is a universal standard part or a component known to those skilled in the art, and its structure and principle can be known to those skilled in the art through the technical manual or through conventional experimental methods.

[0021] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered as the protection scope of the present invention.

Claims

1. A multi-color fully automatic rotary mold core automatic assembly welding mechanism, characterized in that: The invention comprises an upper turntable (1), a lower turntable (2), a turntable auxiliary mechanism (3), a first rotating mold core (4), a second rotating mold core (5), a third rotating mold core (6), a first fixed mold core (7), a second fixed mold core (8), an oil cylinder (9), a suction and blowing device (10), a mold induction switch (11), a turntable signal receiver (12), an ejector rod, a main nozzle (14), an ejector nozzle (15), a side nozzle (16), a buckle base (17) and a sliding block pushing mechanism (18), wherein the upper turntable (1) is mounted on the side of the fixed mold, the lower turntable (2) is mounted on the side of the movable mold, the turntable auxiliary mechanism (3) is mounted on the surface of the mold base and the first fixed mold core (7), and the first turntable (1) is mounted on the side of the movable mold. The mold core (4), the second rotating mold core (5), the third rotating mold core (6), the first fixed mold core (7) and the second fixed mold core (8) are respectively fixed on the mold surface of the fixed mold side and the side of the movable mold; the oil cylinder (9) is fixed on the surface of the mold base; the suction and blowing devices (10) are respectively processed and fixed on the side of the fixed mold and the side of the movable mold; the side of the fixed mold is the suction device, and the side of the movable mold is the blowing device; the mold sensor switch (11) is installed on the side of the oil cylinder (9); the turntable signal receiver (12) is installed on the surface of the mold base; the ejector rod is installed on the surface of the machine platform; the buckle base (17) is installed on the hot runner plate and the balance column; and the sliding block pusher mechanism (18) is installed on the surface of the second fixed mold core (8); The oil cylinder (9) pulls the rack (21), and the rack (21) drives the gear (22), thereby driving the rotation of the entire mold core; The first rotating mold core (4), the second rotating mold core (5) and the third rotating mold core (6) rotate in cooperation with the bearing and the solid wheel; The product obtained by the first rotating mold core (4) and the second fixed mold core (8) is a water cup shell, and a push plate (19) is provided at the bottom of the water cup shell. The push plate (19) has a structure in which a pull block pulls a shovel base (20), and the shovel base (20) drives the push plate (19). The product obtained by the second rotating mold core (5) and the first fixed mold core (7) is a water cup inner cup. The product obtained by the first rotating mold core (4) and the third rotating mold core (6) is a final complete product. Before the upper turntable (1) rotates, a mold is opened between the hot runner plate and the turntable; The push rod directly lifts up the entire third rotating mold core (6) of the rear mold.

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