Full-automatic disc rotary double-color injection molding production line

Abstract

The application discloses a full-automatic disc rotary double-color injection molding production line, which comprises a combined center body, a first injection molding machine, a second injection molding machine, a disc, a base body, a plurality of double-color molds, mold opening and closing mechanisms and a rotary driving mechanism. The lower end of the combined center body is arranged on the base body, the disc is located directly above the base body and is sleeved on the combined center body; all the mold opening and closing mechanisms are arranged on the disc and are arranged in a circle, each double-color mold is arranged on a corresponding mold opening and closing mechanism and comprises a lower mold, a first upper mold and a second upper mold, and the mold opening and closing mechanisms selectively drive the first upper mold or the second upper mold to cooperate with the lower mold to open and close the mold; the first injection molding machine and the second injection molding machine are located on the sides of the disc and are spaced apart along the circumference of the disc, and the rotary driving mechanism is located below the disc and selectively drives any double-color mold on the disc to rotate to a position opposite to the first injection molding machine and the second injection molding machine; and the purpose of automatically double-color injection molding and improving the efficiency is achieved.

Description

Technical Field

[0001] This invention relates to the field of molds, and more particularly to a fully automatic rotary disc two-color injection molding production line. Background Technology

[0002] As we all know, footwear products are generally formed by molds, and the molds used to form footwear products can be divided into single-color molds and two-color molds.

[0003] In existing two-color footwear production lines, there are a first mold, a second mold, a first injection molding machine for injecting molten liquid into the first mold, a second injection molding machine for injecting molten liquid into the second mold, a first mold opening and closing mechanism for driving the opening and closing of the first mold, and a second mold opening and closing mechanism for driving the opening and closing of the second mold. Therefore, during two-color molding, the first injection molding machine first injects molten liquid into the first mold. After the first mold is formed, the product from the first mold is removed and placed into the second mold. Then, the second injection molding machine injects molten liquid into the second mold, thus forming the two-color product. However, such two-color footwear production lines suffer from low automation and low production efficiency.

[0004] Therefore, there is an urgent need for a fully automated rotary two-color injection molding production line with a high degree of automation and high production efficiency to overcome the above-mentioned defects. Summary of the Invention

[0005] The purpose of this invention is to provide a fully automatic rotary two-color injection molding production line with a high degree of automation and high production efficiency.

[0006] To achieve the above objectives, the fully automatic rotary two-color injection molding production line of the present invention includes a combined central body, a first injection molding machine, a second injection molding machine, a disc, a base body, multiple two-color molds, an opening and closing mold mechanism equal in number to the two-color molds, and a rotary drive mechanism for driving the disc to rotate. The combined central body is arranged vertically with its lower end mounted on the base body. The disc is located directly above the base body and fitted onto the combined central body, and the disc can rotate around the centerline of the combined central body. All the opening and closing mold mechanisms are mounted on the disc and arranged in a circle on the disc at intervals. Each two-color mold is mounted on a corresponding opening and closing mold mechanism. Each two-color mold includes a lower mold and a first upper mold and a second upper mold that selectively engage with the lower mold in opening and closing operations. The opening and closing mold mechanism selectively drives the first upper mold or the second upper mold to engage with the lower mold. The molds are designed for mold opening and closing. The first and second injection molding machines are located on the sides of the disc and are spaced apart from each other along the circumference of the disc. The rotary drive mechanism is located below the disc and selectively drives any two-color mold on the disc to rotate sequentially to a position directly opposite the first and second injection molding machines. The first injection molding machine performs compression molding and injection molding on the first upper and lower molds of the two-color molds directly opposite the first injection molding machine, which are in the mold-closing position. The second injection molding machine performs compression molding and injection molding on the second upper and lower molds of the two-color molds directly opposite the second injection molding machine, which are in the mold-closing position.

[0007] Compared with existing technologies, this invention features a central assembly arranged vertically with its lower end mounted on a base. A disc is positioned directly above the base and fitted onto the central assembly, allowing the disc to rotate around its centerline. All mold-opening and closing mechanisms are mounted on the disc and arranged in a ring at intervals. Each two-color mold is mounted on a corresponding mold-opening and closing mechanism. Each two-color mold includes a lower mold and a first and second upper mold that selectively engage with the lower mold. The mold-opening and closing mechanisms selectively drive either the first or second upper mold to engage with the lower mold. The first and second injection molding machines are located on either side of the disc and spaced apart circumferentially. The rotary drive mechanism is located on the disc... Below the disc, the machine selectively drives any two-color mold on the disc to rotate sequentially to a position directly opposite the first and second injection molding machines. The first injection molding machine performs compression molding and injection molding on the first upper mold and lower mold in the closed position of the two-color mold directly opposite the machine, while the second injection molding machine performs compression molding and injection molding on the second upper mold and lower mold in the closed position of the two-color mold directly opposite the machine. This improves automation and production efficiency. At the same time, with the cooperation of the mold opening and closing mechanism, each two-color mold on the disc can automatically switch between the first upper mold or the second upper mold and the lower mold for mold opening and closing, thus greatly improving the efficiency of two-color molding. Attached Figure Description

[0008] Figure 1This is a three-dimensional structural diagram of the fully automatic rotary two-color injection molding production line of the present invention.

[0009] Figure 2 This is a three-dimensional structural diagram of the combined central body in the fully automatic rotary two-color injection molding production line of the present invention.

[0010] Figure 3 yes Figure 2 The diagram shows the planar structure of the combined central body viewed from bottom to top.

[0011] Figure 4 It is along Figure 3 A schematic diagram of the internal structure after being cut along line AA.

[0012] Figure 5 It is along Figure 3 A schematic diagram of the internal structure after being cut along the BB line.

[0013] Figure 6 yes Figure 2 The diagram shows a three-dimensional structure of the combined center body mounted on both the disk and the base.

[0014] Figure 7 yes Figure 6 The diagram shows the internal structure of the combined central body after it has been cut by a plane passing through its center line. The diagram only shows part of the disk and part of the base.

[0015] Figure 8 This is a three-dimensional structural diagram of the mold opening and closing mechanism in the fully automatic rotary two-color injection molding production line of the present invention when the first upper mold base and the lower mold base are in the mold closing state.

[0016] Figure 9 yes Figure 8 The diagram shows the state of the opening and closing mechanism when the lifting drive causes the lifting frame to slide upward a preset distance.

[0017] Figure 10 yes Figure 9 The diagram shows the state of the mold opening and closing mechanism when the flipping drive drives the flipping mold frame to flip forward and downward by 90 degrees.

[0018] Figure 11 yes Figure 10 The diagram shows the state of the mold opening and closing mechanism at another angle.

[0019] Figure 12 yes Figure 8 The diagram shows the three-dimensional structure of the mold opening and closing mechanism after concealing the disc, lifting driver, lifting guide rod, and horizontal driver.

[0020] Figure 13 yes Figure 12A schematic diagram of the three-dimensional exploded structure at one angle.

[0021] Figure 14 yes Figure 12 A three-dimensional exploded structure diagram from another angle.

[0022] Figure 15 yes Figure 8 The diagram shows an exploded three-dimensional structure of the flipping mold frame in the mold opening and closing mechanism. Detailed Implementation

[0023] To illustrate the technical content and structural features of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0024] Please see Figure 1 ,as well as Figures 7 to 11 The fully automatic rotary two-color injection molding production line 1 of the present invention includes a central assembly 100, a first injection molding machine 200a, a second injection molding machine 200b, a disc 300a, a base 300b, eight two-color molds 400, an opening and closing mold mechanism 500 equal in number to the two-color molds 400, and a rotary drive mechanism 600 for driving the disc 300a to rotate. The central assembly 100 is arranged vertically and its lower end is mounted on the base 300b, which provides support for the central assembly 100. Preferably, the central assembly 100 is arranged vertically, but this is not a limitation. The disc 300a is located directly above the base 300b and is fitted onto the central assembly 100, so that the disc 300a can rotate around the centerline of the central assembly 100. All mold opening and closing mechanisms 500 are assembled on disk 300a, which provides support for the mold opening and closing mechanisms 500 and drives them to rotate together around the center line of the assembly center body 100. The mold opening and closing mechanisms 500 are also arranged in a circle on disk 300a at intervals. Each two-color mold 400 is assembled with a corresponding mold opening and closing mechanism 500, and each mold opening and closing mechanism 500 is responsible for the movement of its corresponding two-color mold 400. Each two-color mold 400 includes a lower mold 410 and a first upper mold 420 and a second upper mold 430 that selectively engage with the lower mold 410. That is, when the first upper mold 420 engages with the lower mold 410, the second upper mold 430 is idle, and so on. The mold opening and closing mechanism 500 selectively drives the first upper mold 420 or the second upper mold 430 to engage with the lower mold 410. The first injection molding machine 200a and the second injection molding machine 200b are each located beside the disk 300a and spaced apart circumferentially from the disk 300a, for example in Figure 1In this configuration, the first injection molding machine 200a is located to the left of the disc 300a, and the second injection molding machine 200b is located to the right of the disc 300b, to meet the requirements of the holding pressure time, but not as a limitation. The rotary drive mechanism 600 is located below the disc 300a and selectively drives any one of the two-color molds 400 on the disc 300a to rotate sequentially to a position directly opposite the first injection molding machine 200a and the second injection molding machine 200b. The first injection molding machine 200a performs compression molding and injection molding on the first upper mold 420 and lower mold 410 in the mold-closing position of the two-color mold 400 directly opposite it. The second injection molding machine 200b performs compression molding and injection molding on the second upper mold 430 and lower mold 410 in the mold-closing position of the two-color mold 400 directly opposite it. The first upper mold 420 and lower mold 410 in the mold-closing position are shown in the diagram. Figure 8 As shown. Specifically, to ensure that each two-color mold 400 on the disc 300a is precisely aligned with the first injection molding machine 200a and the second injection molding machine 200b, thereby improving the molding and injection reliability of the two-color mold 400 by the first injection molding machine 200a and the second injection molding machine 200b, the fully automatic disc rotary two-color injection molding production line 1 of the present invention further includes a disc positioning mechanism 800 for precisely positioning the disc 300a. The disc positioning mechanism 800 is located directly below the disc 300a. It is understood that the disc positioning mechanism 800 can be omitted according to actual needs. In addition, the number of two-color molds 400 can also be three, four, five, six or seven, and is not limited thereto. More specifically, as follows:

[0025] Please see Figures 2 to 7The assembly center body 100 includes a hollow shaft 10, a rotary joint 20, a bushing 30 that is sealed and fitted onto the shaft 10, and an electrical box turntable 60 fixed to the upper end of the bushing 30 and surrounding the rotary joint 20. The lower end of the shaft 10 is fitted to a base body 300b, which provides support for the shaft 10. A disc 300a is fitted onto the shaft 10 and located below the bushing 30. The bushing 30 and the shaft body 10 together enclose a water outflow channel 41, a water return channel 42, an oil outflow channel 43, and an oil return channel 44, which are separated from each other. The bushing 30 is connected to the disc 300a via the connecting bracket 90a, so that the bushing 30 rotates around the shaft body 10 together with the disc 300a. That is, the rotating disc 300a can drive the bushing 30 to rotate around the shaft 10 together via the connecting bracket 90a. The bushing 30 has openings for water outflow and return. The outflow channel 41 is connected to the water outflow connector 31, the water return connector 32 is connected to the water return channel 42, the oil outflow connector 33 is connected to the oil outflow channel 43, and the oil return connector 34 is connected to the oil return channel 44. The water outflow connector 31 and the water return connector 32 work together to achieve the back-and-forth circulation of water. Similarly, the oil outflow connector 33 and the oil return connector 34 work together to achieve the back-and-forth circulation of oil. The hollow shaft 10 forms a central channel 11 that axially penetrates the shaft 10. The shaft 10 also has a water inlet channel 12 that communicates with the water outlet channel 41, an oil inlet channel 13 that communicates with the oil outlet channel 43, a water outlet channel 14 that communicates with the water return channel 42, and an oil outlet channel 15 that communicates with the oil return channel 44. This is to facilitate the assembly of an external water inlet pipe 71 onto the water inlet channel 12, the assembly of an external oil inlet pipe 73 onto the oil inlet channel 13, the assembly of an external return water pipe 72 onto the water outlet channel 14, and the assembly of an external return oil pipe 74 onto the oil outlet channel 15. The rotary joint 20 is mounted on the upper end of the shaft 10, and the shaft 10 provides support for the rotary joint 20. The rotary joint 20 has a ventilation channel 21 and a power channel 22 that are connected to and separated from the central channel 11. This allows the external air pipe 75 to pass through from below the central channel 11 and be assembled at the ventilation channel 21, and also allows the external cable 80 to pass through from below the central channel 11 and exit through the power channel 22 of the rotary joint 20, so as to meet the assembly requirements with the controller inside the electrical box turntable 60. Since the electrical box turntable 60 is fixed to the upper end of the bushing 30, the electrical box turntable 60, the bushing 30, and the disc 300a can rotate together around the center line of the shaft 10. This makes it easy for the controller installed inside the electrical box turntable 60 to rotate with the electrical box turntable 60. With the cooperation of the rotary joint 20, the entanglement of the external cable 80 and the external air pipe 75 can be avoided.

[0026] In the combined central body 100, the bushing 30 is sealed and fitted onto the shaft 10, forming a water outflow channel 41, a water return channel 42, an oil outflow channel 43, and an oil return channel 44 that are separated from each other. The bushing 30 can rotate around the shaft 10 and has a water outflow connector 31 communicating with the water outflow channel 41, a water return connector 32 communicating with the water return channel 42, an oil outflow connector 33 communicating with the oil outflow channel 43, and an oil return connector 34 communicating with the oil return channel 44. The shaft 10 also has a water inflow channel 12 communicating with the water outflow channel 41 and a water inflow channel 14 communicating with the oil outflow channel 43. The shaft 10 has an oil inlet channel 13, a water outlet channel 14 connected to the water return channel 42, and an oil outlet channel 15 connected to the oil return channel 44. A rotary joint 20 is mounted on the upper end of the shaft 10 and has a ventilation channel 21 and an electrical channel 22 that are connected to and separated from the central channel 11. This design centralizes the ventilation, water, electrical, and oil supply channels, resulting in a simple overall structure for easy maintenance. Furthermore, the rotation of the bushing 30 and the rotary joint 20 relative to the shaft 10 prevents the external water inlet pipe 71, external water return pipe 72, external oil inlet pipe 73, external oil return pipe 74, external air pipe 75, and external cable 80 from becoming entangled. It should be noted that the specific structure of the rotary joint 20 is well-known in the art and will not be described further here. More specifically, as follows:

[0027] like Figure 4 , Figure 5 and Figure 7As shown, the bushing 30 includes a first bushing 30a and a second bushing 30b. The first bushing 30a and the shaft body 10 together enclose a water outflow channel 41 and a water return channel 42, while the second bushing 30b and the shaft body 10 together enclose an oil outflow channel 43 and an oil return channel 44. The water outflow connector 31 and the water return connector 32 are located on the first bushing 30a, and the oil outflow connector 33 and the oil return connector 34 are located on the second bushing 30b. This design facilitates the machining of the water outflow channel 41 and the water return channel 42 onto the first bushing 30a, and the machining of the oil outflow channel 43 and the oil return channel 44 onto the bushing 30, while ensuring the ease of assembly and sealing reliability between the bushing 30 and the shaft body 10. In addition, the first bushing 30a is linked to the disc 300a via a connecting bracket 90a. Specifically, the combined center body 100 also includes an intermediate connecting ring 50. One end of the intermediate connecting ring 50 is detachably fixed to the first bushing 30a by means of a first locking fastener 51, and the other end of the intermediate connecting ring 50 is detachably fixed to the second bushing 50b by means of a second locking fastener 52. The purpose of this design is to facilitate the assembly and disassembly of the first bushing 30a and the second bushing 30b from the shaft body 10, and also to connect the first bushing 30a and the second bushing 30b into one unit through the intermediate connecting ring 50. Preferably, the second bushing 30b is located above the first bushing 30a, so as to facilitate the connection of the shaft body 10 with the first bushing 30a. The water outflow channel 41 and the water return channel 42 are located below the oil outflow channel 43 and the oil return channel 44, respectively. This effectively prevents water leakage caused by water vapor generated during the cooling process from being mistaken for oil leakage, thus allowing for proper identification of oil and water and making maintenance more convenient. For example, the first locking fastener 51 and the second locking fastener 52 are each screws, which are arranged in a row around the circumference of the intermediate connecting ring 50. The purpose of this arrangement is to increase the reliability of the intermediate connecting ring 50 in fixing to the first bushing 30a and the second bushing 30b, but it is not limited to this.

[0028] like Figure 4 , Figure 5 and Figure 7As shown, the inner wall 351 of the first bushing 30a has a first protruding ring 352, a second protruding ring 353, and a third protruding ring 354 that protrude towards the shaft body 10 and are tightly fitted to the shaft body 10. The first protruding ring 352, the second protruding ring 353, and the third protruding ring 354 are arranged sequentially from bottom to top along the shaft body 10, and each of the first protruding ring 352, the second protruding ring 353, and the third protruding ring 354 is fitted with a sealing ring 355 between itself and the shaft body 10. This design more effectively ensures the first bushing The sealing fit between sleeve 30a and shaft 10 is reliable and the rotation is smooth; the water outflow channel 41 is located between the first convex ring 352 and the second convex ring 353, and the water return channel 42 is located between the second convex ring 353 and the third convex ring 354; of course, according to actual needs, the water return channel 42 can be located between the first convex ring 352 and the second convex ring 353, and correspondingly, the water outflow channel 41 is located between the second convex ring 353 and the third convex ring 354, so it is not limited to this. Meanwhile, a rotating bearing 356 arranged in an upper and lower configuration is fitted between the inner sidewall 351 of the first bushing 30a and the shaft body 10. The upper rotating bearing 356 is located above the third convex ring 354 and abuts axially against the third convex ring 354, while the lower rotating bearing 356 is located below the first convex ring 352 and abuts axially against the first convex ring 352, thereby increasing the smoothness of the rotation of the first bushing 30a around the shaft body 10. With the help of the intermediate connecting ring 50, the upper and lower rotating bearings 356 are conveniently installed and removed from the first bushing 30a and the shaft body 10.

[0029] like Figure 4 , Figure 5 and Figure 7As shown, the inner wall 361 of the second bushing 30b has a first annular platform 362, a second annular platform 363, and a third annular platform 364 that protrude towards the shaft body 10 and are tightly fitted to the shaft body 10. The first annular platform 362, the second annular platform 363, and the third annular platform 364 are arranged sequentially from bottom to top along the shaft body 10, and each of the first annular platform 362, the second annular platform 363, and the third annular platform 364 is fitted with a sealing ring 366 between itself and the shaft body 10. This design can more effectively ensure the second bushing The sealing fit between sleeve 30b and shaft 10 is reliable and the rotation is smooth; the oil outflow channel 43 is located between the first ring platform 362 and the second ring platform 363, and the oil return channel 44 is located between the second ring platform 363 and the third ring platform 364; of course, according to actual needs, the oil return channel 44 can be located between the first ring platform 362 and the second ring platform 363, and correspondingly, the oil outflow channel 43 is located between the second ring platform 363 and the third ring platform 364, so it is not limited to this. Meanwhile, a pair of rotating bearings 366 arranged in an upper and lower configuration are fitted between the inner sidewall 361 of the second bushing 30b and the shaft body 10. The upper rotating bearing 366 is located above the third ring platform 364 and abuts axially against the third ring platform 364, while the lower rotating bearing 366 is located below the first ring platform 362 and abuts axially against the first ring platform 362, thereby increasing the smoothness of the rotation of the second bushing 30b around the shaft body 10. Furthermore, the intermediate connecting ring 50 facilitates the installation and removal of the upper and lower rotating bearings 366 on the second bushing 30a and the shaft body 10.

[0030] like Figure 4 , Figure 5 and Figure 7As shown, for ease of assembly and disassembly, the shaft 10 includes a lower shaft 10a and an upper shaft 10b that are fixed axially. Preferably, the lower shaft 10a and the upper shaft 10b are fixed together by screws to facilitate operation between the lower shaft 10a and the upper shaft 10b. The screws are inserted into the lower shaft 10a and the upper shaft 10b along the axial direction of the shaft 10. This can prevent the screws from increasing the space occupied by radially protruding from the shaft 10, but it is not a limitation. The central channel 11 runs through the lower shaft 10a and the upper shaft 10b. The central channel 11 of the lower shaft 10a is larger than that of the upper shaft 10b, so that the external water inlet pipe 71, external return water pipe 72, external oil inlet pipe 73, external return oil pipe 74, external air pipe 75 and external cable 80 can pass through the central channel 11 of the lower shaft 10a and be assembled in the corresponding positions. The water inlet channel 12, oil inlet channel 13, water outlet channel 14 and oil outlet channel 15 pass downward through the upper shaft 10b and are located in the central channel 11 of the lower shaft 10a. This arrangement makes it easier to assemble the external water inlet pipe 71, external return water pipe 72, external oil inlet pipe 73 and external return oil pipe 74 with the upper shaft 10b. When the shaft 10 includes a lower shaft 10a and an upper shaft 10b, the disk 300a is fitted onto the lower shaft 10a, specifically by using a mounting bearing 90b fitted onto the lower shaft 10a, allowing the disk 300a to rotate more flexibly and smoothly around the shaft 10. It can be understood that when the shaft 10 is not divided into a lower shaft 10a and an upper shaft 10b, the disk 300a is fitted onto the shaft 10 using a mounting bearing 90b, so this is not a limitation.

[0031] It should be noted that, in Figure 4 In the process, the flow of water from the outside is as follows: water enters through the external inlet pipe 71, then flows sequentially through the water inlet channel 12, the water outlet channel 41, the water outlet connector 31, the water return connector 32, the water return channel 42, and the water outlet channel 14, before flowing out through the external return pipe 72; similarly, in Figure 5 In the process, the flow of oil from the outside is as follows: the oil enters from the external input oil pipe 73, and then flows through the oil input channel 13, the oil outflow channel 431, the oil outflow connector 33, the oil return connector 34, the oil return channel 44 and the oil output channel 15 in sequence, and then flows out from the external return oil pipe 74.

[0032] Please see Figures 8 to 11The mold opening and closing mechanism 500 includes a lifting driver 520, a lifting frame 530, a tilting mold frame 540, a lower mold base 550 for mounting the lower mold 410, a first upper mold base 560 for mounting the first upper mold 420, a second upper mold base 570 for mounting the second upper mold 430, and a tilting driver 580 for driving the tilting mold frame 540 to tilt. The lower mold base 550 is mounted on a disc 300a, which provides support for the lower mold base 550. The lifting frame 530 is located above the lower mold base 550. The lifting driver 520 is mounted on both the disc 300a and the lifting frame 530, and drives the lifting frame 530 to move closer to or away from the lower mold base 550 to meet the needs of mold opening and closing. The tilting mold frame 540 is tiltably mounted on the lifting frame 530, and the lifting frame 530 carries the tilting mold frame 540. The tilting mold frame 540 is also located directly above the lower mold base 550. The first upper mold base 560 and the second upper mold base 570 are assembled on the flip mold frame 540, and the flip mold frame 540 provides support for the first upper mold base 560 and the second upper mold base 570. The first upper mold base 560 and the second upper mold base 570 are also aligned with each other along the flipping direction of the flip mold frame 540 to ensure that the flip mold frame 540 can switch the first upper mold base 560 or the second upper mold base 570 to a position directly opposite the lower mold base 550 during the flipping process. The tilting actuator 580 is mounted on the lifting frame 530, which provides support for the tilting actuator 580. When the lifting actuator 520 drives the lifting frame 530 to slide a preset distance relative to the lower mold base 550, the tilting actuator 580 can selectively drive the tilting mold base 540 to tilt, so that the first upper mold base 560 or the second upper mold base 570 switches to a position directly opposite the lower mold base 550, thereby correspondingly switching the first upper mold 420 or the second upper mold 430 to a position directly opposite the lower mold 410; for example, in Figure 8 At this time, the lower mold base 550 is in the closed mold state with the first upper mold base 560, correspondingly causing the lower mold 410 to be in the closed mold state with the first upper mold 420 to meet the needs of the first injection molding; when it is necessary to close the lower mold base 550 with the second upper mold base 570, so that the lower mold 410 and the second upper mold 430 are closed accordingly, the lifting driver 520 first drives the lifting frame 530 to slide upward a preset distance. This preset distance is set according to actual needs, as long as it satisfies the requirement that the flipping mold frame 540 can flip smoothly when the lifting frame 530 is at the preset distance; when the lifting frame 530 is at the preset distance, the state is as follows. Figure 9 As shown, at this time, Figure 9 The flipping driver 580 drives the flipping mold base 540 to flip forward and downward by 90 degrees, so that the second upper mold base 570 is switched to a position directly opposite the lower mold base 550. Correspondingly, the second upper mold 430 is switched to a position directly opposite the lower mold 410. At this time, the first mold base 560, which was originally directly opposite the lower mold base 550, is switched to a position offset from the lower mold base 550. See the state diagram. Figure 10 and Figure 11 As shown; then, the lifting driver 520 drives the lifting frame 530 to slide downward, so that the second upper mold base 570 and the lower mold base 550 can close, and correspondingly, the second upper mold 430 and the lower mold 410 can close, so as to meet the needs of the second injection molding.

[0033] In the mold opening and closing mechanism 500, with the aid of a lifting frame 530 and a lifting driver 520, the lifting driver 520 drives the lifting frame 530, together with the tilting mold frame 540, the tilting driver 580, the first upper mold base 560, the first upper mold 420, the second upper mold base 570, and the second upper mold 430, to slide upwards in a direction away from the lower mold base 550, ensuring a stable and reliable mold opening process. When the lifting driver 520 drives the lifting frame 530 to slide a preset distance relative to the lower mold base 550 (i.e., when the mold opening is completed), the tilting driver 580, which is mounted on the lifting frame 530, drives the tilting mold frame 540 to tilt, so that either the first upper mold base 560 and the first upper mold 420 or the second upper mold... Both the base 570 and the second upper mold 430 are switched to a position directly opposite the lower mold base 550. This allows the lower mold 410 on the lower mold base 550 to close with the first upper mold 420 on the first upper mold base 560 or the second upper mold 430 on the second upper mold base 570 during the downward sliding of the lifting frame 530 driven by the lifting drive 520. Therefore, the reliability of switching the first upper mold 420 on the first upper mold base 560 or the second upper mold 430 on the second upper mold base 570 to a position directly opposite the lower mold 410 on the lower mold base 550 is ensured. More specifically, as follows:

[0034] like Figures 8 to 10 ,as well as Figure 14As shown, the lifting frames 530 are located on the left and right sides of the tilting mold frame 540, so that the tilting mold frame 540 is sandwiched between the left and right lifting frames 530. This design increases the support capacity of the lifting frames 530 for the tilting mold frame 540, and also improves the smoothness of the lifting frames 530 driving the tilting mold frame 540 to rise and fall together during the lifting movement. Each of the left and right lifting frames 530 has a corresponding lifting driver 520, that is, the left and right lifting frames 530 are each driven by their respective lifting drivers 520. A lifting guide rod 311 is installed on the disc 300a, located next to the lifting driver 520. The lifting guide rod 311 passes through the lifting frame 530 to improve the smoothness and stability of the lifting frame 530's rise and fall. Specifically, the lifting actuator 520 is mounted on the disc 300a, with its output end 521 facing upwards. The output end 521 of the lifting actuator 520 is also connected to the lifting frame 530. This design simplifies the assembly relationship between the lifting actuator 520 and the lifting frame 530. In the left or right lifting frame 530, the lifting guide rods 311 are arranged alternately, but this is not a limitation. For example, the lifting actuator 520 can be a hydraulic cylinder, but it can be a pneumatic cylinder or other power unit depending on actual needs, so this is not a limitation.

[0035] like Figures 11 to 15 As shown, the left and right sides of the tilting mold frame 540 are pivotally connected to the corresponding lifting frame 530 via pivot structures 541. Specifically, the left side of the tilting mold frame 540 is pivotally connected to the left-side lifting frame 530 via pivot structure 541, and the right side of the tilting mold frame 540 is pivotally connected to the right-side lifting frame 530 via pivot structure 541, ensuring alignment between the left and right pivot structures 541. One end of the pivot structure 541 is fixedly connected to the tilting mold frame 540, and the other end is rotatably inserted into the lifting frame 530. The tilting actuator 580 drives the pivot structure 541 to tilt, achieving the purpose of tilting the mold frame 540 by the tilting actuator 580. The pivot structures 541 on both sides increase the strength and reliability of the rotatable connection between the tilting mold frame 540 and the lifting frame 530. Specifically, the tilting actuator 580 drives the pivot structure 541 to rotate via gear transmission. Of course, depending on actual needs, the pivot structure 541 can also be driven to rotate via belt transmission or chain transmission. For example, the tilting actuator 580 is a cylinder or hydraulic cylinder. A rack (not shown) is mounted on the output end of the tilting actuator 580, and a gear 542 meshing with the rack is mounted on the pivot structure 541 to ensure the reliability of the tilting actuator 580 in driving the pivot structure 541 to rotate. It should be noted that, depending on actual needs, the tilting actuator 580 can also directly drive the pivot structure 541 to rotate, without the need for belt drive, chain drive, or gear drive; and the tilting actuator 580 can be a motor or a tilting cylinder, etc., so it is not limited to this. It is worth noting that although... Figures 8 to 14 The flip drive 580 shown is installed on a single-sided lifting frame 530 and drives the corresponding pivot structure 541 to rotate. When it is necessary to drive the pivot structure 541 to rotate from both sides, the flip drive 580 can be installed on the left and right lifting frames 530 respectively, so it is not limited to this.

[0036] like Figures 13 to 15 As shown, to facilitate the assembly and disassembly of the first upper mold 420 and the first upper mold base 560, and the assembly and disassembly of the lower mold 410 and the lower mold base 550, the mold opening and closing mechanism 500 further includes a first push-pull driver 591 for driving the first upper mold base 560 to move away from or towards the flipping mold frame 540, and a horizontal driver 594 for driving the lower mold base 550 to slide horizontally on the disk 300a. The first push-pull driver 591 is located on the left and right sides of the flipping mold frame 540, respectively. The first push-pull driver 591 is mounted on the flipping mold frame 540 and the first upper mold base 560, so that the first push-pull driver 591 can more reliably drive the first upper mold base 560 to slide away from or towards the flipping mold frame 540; the horizontal driver 594 is mounted on the lower mold base 550 and the disk 300a. For example, the first push-pull driver 591 and the horizontal driver 594 are cylinders or hydraulic cylinders, but are not limited thereto.

[0037] like Figures 13 to 15 As shown, to facilitate the assembly and disassembly of the second upper mold 430 and the second upper mold base 570, the mold opening and closing mechanism 500 further includes a main push-pull driver 592 for driving the second upper mold base 570 to move away from or towards the flip mold frame 540, and a secondary push-pull driver 593 for assisting the main push-pull driver 592 in driving the second upper mold base 570 to move away from or towards the flip mold frame 540. The main push-pull driver 592 is mounted on the flip mold frame 540 and the second upper mold base 570, and the main push-pull driver 592 is also located inside the flip mold frame 540; the secondary push-pull driver 593 is located outside the flip mold frame 540 and is mounted on the flip mold frame 540 and the second upper mold base 570. For example, the main push-pull driver 592 and the secondary push-pull driver 593 can be cylinders or hydraulic cylinders, and are not limited thereto.

[0038] Referring to the accompanying drawings, the working principle of the fully automatic rotary two-color injection molding production line 1 of the present invention will be explained as follows: During the process where the rotary drive mechanism 600 drives any two-color mold 400 on the disc 300a to rotate sequentially to a position directly opposite the first injection molding machine 200a and the second injection molding machine 200b, the disc positioning mechanism 800 ensures that any two-color mold 400 on the disc 300a is precisely rotated to a position directly opposite the first injection molding machine 200a and the second injection molding machine 200b, and then the first injection molding machine... The first injection molding machine 200a performs compression molding and injection molding on the first upper mold 420 and lower mold 410 in the mold-closing position of the two-color mold 400 directly opposite to the first injection molding machine 200a; the second injection molding machine 200b performs compression molding and injection molding on the second upper mold 430 and lower mold 410 in the mold-closing position of the two-color mold 400 directly opposite to the second injection molding machine 200b; while the two-color mold 400 away from the first injection molding machine 200a and the second injection molding machine 200b is first held under pressure by the mold opening and closing mechanism 500 before being opened. During the rotation of the two-color mold 400 from the second injection molding machine 200b to the first injection molding machine 200a along with the disc 300a, the mold opening and closing mechanism 500 also performs a movement that switches the first upper mold 420 in the two-color mold 400 to the mold closing position with the lower mold 410; similarly, during the rotation of the two-color mold 400 from the first injection molding machine 200a to the second injection molding machine 200b along with the disc 300a, the mold opening and closing mechanism 500 also performs a movement that switches the second upper mold 430 in the two-color mold 400 to the mold closing position with the lower mold 410.

[0039] Compared with the prior art, since the combined center body 100 is arranged vertically and its lower end is mounted on the base body 300b, the disc 300a is located directly above the base body 300b and is fitted onto the combined center body 100. The disc 300a can rotate around the center line of the combined center body 100. All the mold opening and closing mechanisms 500 are mounted on the disc 300a and arranged in a circle at intervals on the disc 300a. Each two-color mold 400 is mounted on a corresponding mold opening and closing mechanism 500. Each two-color mold 400 includes a lower mold 410 and a first upper mold 420 and a second upper mold 430 that selectively engage with the lower mold 410. The mold opening and closing mechanism 500 selectively drives the first upper mold 420 or the second upper mold 430 to engage with the lower mold 410. The first injection molding machine 200a and the second injection molding machine 200b are located on the side of the disc 300a and are spaced apart along the circumference of the disc 300a, and are driven by rotation. Mechanism 600 is located below disk 300a and selectively drives any two-color mold 400 on disk 300a to rotate sequentially to a position directly opposite the first injection molding machine 200a and the second injection molding machine 200b. The first injection molding machine 200a performs compression molding and injection molding on the first upper mold 420 and lower mold 410 of the two-color mold 400 directly opposite it, which are in the mold-closing position. The second injection molding machine 200b performs compression molding and injection molding on the second upper mold 430 and lower mold 410 of the two-color mold 400 directly opposite it, which are in the mold-closing position. This improves the degree of automation and production efficiency. At the same time, with the cooperation of mold opening and closing mechanism 500, each two-color mold 400 on disk 300a can automatically switch between the first upper mold 420 or the second upper mold 430 and the lower mold 410 for mold opening and closing, thus greatly improving the efficiency of two-color molding.

[0040] It is worth noting that, to further improve the level of automation, the fully automatic rotary two-color injection molding production line 1 of the present invention is preferably electrically connected to an existing controller, which controls the coordinated operation between the various parts of the fully automatic rotary two-color injection molding production line 1 of the present invention. Furthermore, the rotary drive mechanism 600 adopts a combination of a motor, a ring rack and pinion, and gears. The ring rack is mounted on the disc 300a with their center lines coinciding, while the gears are mounted at the output end of the motor and mesh with the ring rack, but this is not a limitation.

[0041] The above-disclosed examples are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are within the scope of the present invention.

Claims

1. A fully automatic disc rotary two-color injection molding production line, characterized by, The combination center body, the first injection molding machine, the second injection molding machine, the disc, the base body, a plurality of two-color molds, the same number of mold opening and closing mechanisms as the two-color molds, and a rotating drive mechanism for driving the disc to rotate, the combination center body is arranged up and down and the lower end is fitted to the base body, the disc is located directly above the base body and is fitted to the combination center body, the disc can rotate around the center line of the combination center body, all the mold opening and closing mechanisms are fitted to the disc and are arranged in a circle on the disc, each two-color mold is fitted to a corresponding mold opening and closing mechanism, each two-color mold includes a lower mold and a first upper mold and a second upper mold selectively matched with the lower mold for mold opening and closing, the mold opening and closing mechanism selectively drives the first upper mold or the second upper mold to match with the lower mold for mold opening and closing, the first injection molding machine and the second injection molding machine are located on the side of the disc and are spaced apart along the circumference of the disc, the rotating drive mechanism is located below the disc and selectively drives any two-color mold on the disc to rotate to a position directly opposite the first injection molding machine and the second injection molding machine, the first injection molding machine and the second injection molding machine are used to press and inject the first upper mold and the lower mold in the two-color mold in the mold closing position directly opposite the first injection molding machine and the second injection molding machine. The combination center body includes a hollow shaft body, a rotary joint, a shaft sleeve that is fitted to the shaft body in a sealed manner, and an electric box turntable that is fixed to the upper end of the shaft sleeve and surrounds the rotary joint, the lower end of the shaft body is fitted to the base body, the disc is fitted to the shaft body and located below the shaft sleeve, the shaft sleeve and the shaft body jointly enclose water outflow channels, water return channels, oil outflow channels, and oil return channels that are separated from each other, the shaft sleeve is connected to the disc through a connecting support to rotate with the disc around the shaft body, the shaft sleeve is provided with a water outflow joint communicating with the water outflow channel, a water return joint communicating with the water return channel, an oil outflow joint communicating with the oil outflow channel, and an oil return joint communicating with the oil return channel, the hollow of the shaft body forms a central channel that axially penetrates the shaft body, the shaft body is also provided with a water input channel communicating with the water outflow channel, an oil input channel communicating with the oil outflow channel, a water output channel communicating with the water return channel, and an oil output channel communicating with the oil return channel, the rotary joint is fitted to the upper end of the shaft body, and the rotary joint is provided with an air passage and an electricity passage that are in communication with the central channel and are separated from each other.

2. The fully automatic disc rotary dual-color injection molding line according to claim 1, characterized in that, It also includes a disc positioning mechanism for accurately positioning the disc, and the disc positioning mechanism is located directly below the disc.

3. The fully automatic disc-rotary dual-color injection molding line according to claim 1, characterized in that, The combination center body further comprises an intermediate connecting ring, the shaft sleeve comprises a first shaft sleeve and a second shaft sleeve, the first shaft sleeve and the shaft body jointly enclose the water outflow channel and the water return channel, the second shaft sleeve and the shaft body jointly enclose the oil outflow channel and the oil return channel, the water outflow joint and the water return joint are located in the first shaft sleeve, the oil outflow joint and the oil return joint are located in the second shaft sleeve, one end of the intermediate connecting ring is detachably sleeved and fixed with the first shaft sleeve by means of a first locking piece, the other end of the intermediate connecting ring is detachably sleeved and fixed with the second shaft sleeve by means of a second locking piece, and the first shaft sleeve is arranged in linkage with the disc through the connecting support.

4. The fully automatic disc-rotary dual-color injection molding line according to claim 3, characterized in that, The inner side wall of the first shaft sleeve has a first convex ring, a second convex ring and a third convex ring which are arranged in sequence and are spaced apart from each other along the shaft body from bottom to top, and a sealing ring is arranged between each of the first convex ring, the second convex ring and the third convex ring and the shaft body, one of the water outflow channel and the water return channel is located between the first convex ring and the second convex ring, the other of the water outflow channel and the water return channel is located between the second convex ring and the third convex ring, and a rotating bearing arranged in one above the other is sleeved between the inner side wall of the first shaft sleeve and the shaft body, the upper rotating bearing is located above the third convex ring and axially abuts against the third convex ring, and the lower rotating bearing is located below the first convex ring and axially abuts against the first convex ring.

5. The fully automatic disc-rotary dual-color injection molding line according to claim 3, characterized in that, The inner side wall of the second shaft sleeve has a first ring platform, a second ring platform and a third ring platform which are arranged in sequence and are spaced apart from each other along the shaft body from bottom to top, and a sealing ring is arranged between each of the first ring platform, the second ring platform and the third ring platform and the shaft body, one of the oil outflow channel and the oil return channel is located between the first ring platform and the second ring platform, the other of the oil outflow channel and the oil return channel is located between the second ring platform and the third ring platform, and a rotating bearing arranged in one above the other is sleeved between the inner side wall of the second shaft sleeve and the shaft body, the upper rotating bearing is located above the third ring platform and axially abuts against the third ring platform, and the lower rotating bearing is located below the first ring platform and axially abuts against the first ring platform.

6. The fully automatic disc-rotary dual-color injection molding line according to claim 1, characterized in that, The mold opening and closing mechanism comprises a lifting driver, a lifting frame, a turnover mold frame, a lower mold base for assembling the lower mold, a first upper mold base for assembling the first upper mold, a second upper mold base for assembling the second upper mold, and a turnover driver for driving the turnover mold frame to turn over, the lower mold base is assembled on the disc, the lifting frame is above the lower mold base, the lifting driver is assembled on the disc and the lifting frame, the lifting driver drives the lifting frame to move close to or away from the lower mold base, the turnover mold frame is turnably assembled on the lifting frame and directly above the lower mold base, the first upper mold base and the second upper mold base are assembled on the turnover mold frame and aligned with each other along the turning direction of the turnover mold frame, and the turnover driver is installed on the lifting frame. When the lifting driver drives the lifting frame to slide relative to the lower mold base by a preset distance, the turnover driver can selectively drive the turnover mold frame to turn over so that the first upper mold base or the second upper mold base switches to a position directly opposite to the lower mold base, so that the first upper mold or the second upper mold switches to a position directly opposite to the lower mold correspondingly.

7. The fully automatic disc-rotary dual-color injection molding line according to claim 6, characterized in that, The lifting frame is respectively beside the left and right sides of the turnover mold frame, so that the turnover mold frame is clamped between the left and right lifting frames, the left and right lifting frames each correspond to the lifting driver, the disc is provided with a lifting guide rod beside the lifting driver, and the lifting guide rod penetrates the lifting frame.

8. The fully automatic disc-rotary dual-color injection molding line according to claim 7, characterized in that, The left and right sides of the turnover mold frame are each pivotally connected with the corresponding lifting frame by means of a pivot structure, the pivot structures are aligned with each other, one end of the pivot structure is fixedly connected with the turnover mold frame, and the other end of the pivot structure is rotatably penetrated into the lifting frame.

9. The fully automatic disc-rotary dual-color injection molding line according to claim 6, characterized in that, The mold opening and closing mechanism further comprises a first push-pull driver for driving the first upper mold base to move away from or close to the turnover mold frame, a horizontal driver for driving the lower mold base to slide horizontally on the disc, a main push-pull driver for driving the second upper mold base to move away from or close to the turnover mold frame, and a secondary push-pull driver for assisting the main push-pull driver to drive the second upper mold base to move away from or close to the turnover mold frame, the main push-pull driver is located in the turnover mold frame, the main push-pull driver is also assembled on the turnover mold frame and the second upper mold base, the secondary push-pull driver is located outside the turnover mold frame and is assembled on the turnover mold frame and the second upper mold base, the first push-pull driver is respectively located outside the left and right sides of the turnover mold frame, the first push-pull driver is assembled on the turnover mold frame and the first upper mold base, the horizontal driver is assembled on the lower mold base and the disc, the lifting driver is assembled on the disc, the output end of the lifting driver is upwardly arranged, and the output end of the lifting driver is also assembled and connected with the lifting frame.

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