Automatic overturning mold opening and closing mechanism

Abstract

The utility model relates to an automatic overturning mold opening and closing mechanism which comprises a rack, a mold closing mechanism is installed on the rack in a lifting mode, a lower mold is installed on the top of the mold closing mechanism, an overturning mechanism is arranged over the lower mold, a first upper mold is installed on the top face of the overturning mechanism, and a second upper mold is installed on the bottom face of the overturning mechanism. The automatic mold opening device can be suitable for single-color and double-color production according to actual requirements, is high in automation degree, can automatically open the mold, and does not need to manually warp the mold.

Description

Technical Field

[0001] This utility model specifically relates to an automatic flipping mold opening and closing mechanism. Background Technology

[0002] Currently, the molds used in compression molding generally consist of an upper mold and a lower mold. After compression molding, the mold needs to be opened to separate the upper and lower molds and remove the molded material. The upper mold needs to be opened, but the existing mold materials are generally steel molds, which are heavy. Therefore, the mold opening and flipping work brings great difficulties and operational risks. At present, the mold opening and flipping process is usually carried out manually with the help of gantry cranes or cranes, or the upper mold is raised and lowered by hydraulic cylinders, and manual operation is carried out with auxiliary devices such as pry bars. The operation is difficult and inconvenient and poses significant safety hazards. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an automatic flipping mold opening and closing mechanism.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic flipping mold opening and closing mechanism, including a frame, a mold closing mechanism is installed on the frame in a lifting manner, a lower mold is installed on the top of the mold closing mechanism, a flipping mechanism is arranged directly above the lower mold, a first upper mold is installed on the top surface of the flipping mechanism, and a second upper mold is installed on the bottom surface of the flipping mechanism.

[0005] Preferably, the mold closing mechanism includes a mold closing hydraulic cylinder and a mold closing frame. The mold closing frame is fixedly installed on the machine frame. The mold closing hydraulic cylinder is installed at the bottom of the mold closing frame. The piston end of the mold closing hydraulic cylinder passes through the mold closing frame and is connected to the tilting mechanism. The machine frame is provided with multiple guide pillars that pass through the mold closing frame and the tilting mechanism.

[0006] Preferably, the flipping mechanism includes a flipping head and lifting frames symmetrically arranged on both sides of the flipping head. The two sides of the flipping head are rotatably mounted on the corresponding lifting frames via rotating shafts. The lifting frames have rotating holes corresponding to the rotating shafts. The lifting frames are movably mounted on the guide pillars. The bottom of the lifting frames is fixedly connected to the piston end of the mold closing hydraulic cylinder. A drive mechanism for driving the rotating shaft to rotate is installed on one side of the lifting frames.

[0007] Preferably, the driving mechanism includes a tilting bracket, a first tilting cylinder, a second tilting cylinder, and a rotating plate. The tilting bracket is installed on the outside of the lifting frame. The tail ends of the cylinder bodies of the first and second tilting cylinders are both hinged to the tilting bracket. The piston ends of the first and second tilting cylinders are both hinged to the rotating plate. One side of the rotating plate is installed on the rotating shaft of the tilting head.

[0008] Preferably, the first tilting cylinder is located above the second tilting cylinder.

[0009] Compared with the prior art, the present invention has the following advantages: the automatic flipping mold opening and closing mechanism can be applied to the production of single color and two color according to actual needs, with a high degree of automation, and can automatically open the mold without the need for manual mold lifting. Attached Figure Description

[0010] Figure 1 This is a side view of an embodiment of the present utility model.

[0011] Figure 2 This is a front view of an embodiment of the present utility model.

[0012] The markings in the diagram are: 1. Frame; 2. Lower mold; 3. First upper mold; 4. Second upper mold; 5. Mold closing hydraulic cylinder; 6. Mold closing frame; 7. Guide pillar; 8. Tilting head; 9. Rotating shaft; 10. Tilting bracket; 11. First tilting cylinder; 12. Second tilting cylinder; 13. Rotating plate; 17. Lifting frame. Detailed Implementation

[0013] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0014] like Figures 1-2 As shown, an automatic flipping mold opening and closing mechanism includes a frame 1, on which a mold closing mechanism is movably mounted. A lower mold 2 is mounted on the top of the mold closing mechanism. A flipping mechanism is arranged directly above the lower mold 2. A first upper mold 3 is mounted on the top surface of the flipping mechanism, and a second upper mold 4 is mounted on the bottom surface of the flipping mechanism.

[0015] In this embodiment, the mold closing mechanism includes a mold closing hydraulic cylinder 5 and a mold closing frame 6. The mold closing frame 6 is fixedly installed on the frame 1. The mold closing hydraulic cylinder 5 is installed at the bottom of the mold closing frame 6. The piston end of the mold closing hydraulic cylinder 5 passes through the mold closing frame 6 and is connected to the flipping mechanism. The frame 1 is provided with multiple guide pillars 7 that pass through the mold closing frame 6 and the flipping mechanism.

[0016] In this embodiment, the flipping mechanism includes a flipping head 8 and lifting frames 17 symmetrically arranged on both sides of the flipping head 8. The two sides of the flipping head 8 are rotatably mounted on the corresponding lifting frames 17 via rotating shafts 9. The lifting frames 17 have rotating holes corresponding to the rotating shafts 9. The lifting frames 17 are movably sleeved on the guide post 7. The bottom of the lifting frames 17 is fixedly connected to the piston end of the mold closing hydraulic cylinder 5. A drive mechanism for driving the rotating shaft is installed on one side of the lifting frame 17.

[0017] In this embodiment, the driving mechanism includes a tilting bracket 10, a first tilting cylinder 11, a second tilting cylinder 12, and a rotating plate 13. The tilting bracket 10 is installed on the outside of the lifting frame 17. The cylinder tails of the first tilting cylinder 11 and the second tilting cylinder 12 are both hinged to the tilting bracket 10. The piston ends of the first tilting cylinder 11 and the second tilting cylinder 12 are both hinged to the rotating plate 13. One side of the rotating plate 13 is installed on the rotating shaft 9 of the tilting head 8.

[0018] In this embodiment, the first tilting cylinder 11 is located above the second tilting cylinder 12.

[0019] During production, the mold closing mechanism drives the flipping head to move downward, causing the second upper mold 4 and the lower mold 2 to close and press together. At this time, the first color is injected. After the cooling time is up, the mold closing mechanism separates the second upper mold 4 from the lower mold 2. Then, the flipping mechanism flips the first upper mold 3 to the bottom surface of the flipping head 8. Then, the first upper mold 3 and the lower mold 2 are closed and pressed together, and the second color is injected to form the mold. In this way, by continuously opening and closing the mold and flipping, two-color production can be continuously cycled.

[0020] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes, and alterations made by those skilled in the art to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall be within the scope of the present utility model.

Claims

1. An automatic flipping mold opening and closing mechanism, characterized in that: The device includes a frame on which a mold closing mechanism is mounted in a height-adjustable manner. A lower mold is mounted on the top of the mold closing mechanism. A flipping mechanism is located directly above the lower mold. A first upper mold is mounted on the top surface of the flipping mechanism, and a second upper mold is mounted on the bottom surface of the flipping mechanism. The mold closing mechanism includes a mold closing hydraulic cylinder and a mold closing frame. The mold closing frame is fixedly installed on the machine frame. The mold closing hydraulic cylinder is installed at the bottom of the mold closing frame. The piston end of the mold closing hydraulic cylinder passes through the mold closing frame and is connected to the tilting mechanism. The machine frame is provided with multiple guide pillars that pass through the mold closing frame and the tilting mechanism. The flipping mechanism includes a flipping head and lifting frames symmetrically arranged on both sides of the flipping head. The two sides of the flipping head are rotatably mounted on the corresponding lifting frames via rotating shafts. The lifting frames have rotating holes corresponding to the rotating shafts. The lifting frames are movably sleeved on the guide pillars. The bottom of the lifting frames is fixedly connected to the piston end of the mold closing hydraulic cylinder. A drive mechanism for driving the rotating shaft to rotate is installed on one side of the lifting frames. The driving mechanism includes a tilting bracket, a first tilting cylinder, a second tilting cylinder, and a rotating plate. The tilting bracket is installed on the outside of the lifting frame. The tail ends of the cylinder bodies of the first and second tilting cylinders are both hinged to the tilting bracket. The piston ends of the first and second tilting cylinders are both hinged to the rotating plate. One side of the rotating plate is installed on the rotating shaft of the tilting head.

2. The automatic flipping mold opening and closing mechanism according to claim 1, characterized in that: The first tilting cylinder is located above the second tilting cylinder.

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