Double-station mold closing mechanism
By designing a double-station structure in the mold clamping mechanism of the injection molding machine and the die-casting machine, and using the reciprocating movement of the moving mold mechanism to achieve simultaneous production of two sets of molds, the problem of inefficiency in traditional single-station structures is solved, and the production efficiency and equipment utilization are significantly improved.
Patent Information
- Application Number
- CN202311140266.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-06
- Publication Date
- 2025-03-07
AI Technical Summary
The mold clamping mechanism of traditional injection molding machines and die-casting machines is a single-station structure, which results in only one set of molds installed per equipment for production, with a long production cycle and low efficiency.
A double-station mold clamping mechanism is designed. By setting a second fixed template and a second moving template in the moving mold mechanism, the simultaneous production of two sets of mold stations is realized. Through the reciprocating movement of the moving mold mechanism, the mold clamping and mold opening actions are optimized to ensure that the forming processes of the two sets of molds do not interfere with each other and the cycle period is partially overlapped.
It realizes the production of two sets of molds installed on each device at the same time, which greatly improves production efficiency, which is equivalent to one device doing the work of two devices, improving the utilization rate of the equipment and reducing the footprint.
Smart Images
Figure CN119567520A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of mold forming machinery, and in particular relates to a mold clamping mechanism of the mold forming machinery, and is particularly suitable for the mold clamping mechanism of an injection molding machine and a die-casting machine. Background Art
[0002] At present, the clamping mechanism of traditional mold forming machines such as injection molding machines and die-casting machines are all single-station structures, that is, each injection molding machine or die-casting machine can only be installed with one set of mold production. Each time the mold is formed, the clamping mechanism needs to close and open the mold once. In addition, it also has to go through work links such as material injection, cooling molding, and ejection of the workpiece. The entire production cycle is relatively long. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to develop a double-station mold clamping mechanism, which is applied to injection molding machines or die-casting machines, so that each injection molding machine or die-casting machine can be installed with two sets of molds for simultaneous production. The molding processes of each set of molds do not interfere with each other and the cycle periods partially overlap, thereby greatly improving the overall production efficiency. It is basically equivalent to one molding machine doing the work of two molding machines, improving the utilization rate of the equipment and reducing the floor space.
[0004] The technical problem of the present invention is implemented through the following technical solution: a double-station clamping mechanism, including a first fixed mold plate 1, four large rods 2, and a movable mold mechanism 3. The movable mold mechanism 3 is provided with a first movable mold plate 31. The first fixed mold plate 1 and the first movable mold plate 31 constitute a first mold station, and it is characterized in that it also includes a second fixed mold plate 4; the movable mold mechanism 3 is also provided with a second movable mold plate 34; the second fixed mold plate 4 and the second movable mold plate 34 constitute a second mold station.
[0005] A double-station clamping mechanism as described above is characterized in that the movable mold mechanism 3 moves toward the first fixed mold plate 1, that is, the first mold station is clamped, and at the same time the second mold station is opened; the movable mold mechanism 3 moves toward the second fixed mold plate 4, that is, the second mold station is clamped, and at the same time the first mold station is opened.
[0006] Compared with the prior art, the beneficial effect of the present invention is that one molding machine can produce two sets of molds at the same time, thereby greatly improving the production efficiency of a single machine. One device does the work of two devices, improving the use value of the equipment and reducing the floor space. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 Schematic diagram of the overall structure of the present invention Figure 2 The structural diagram of the movable mold mechanism of the present invention Figure 3 Schematic diagram of the first embodiment of the present invention Implementation Method
[0008] The present invention is described in detail below in conjunction with the above-mentioned drawings. First embodiment: The present invention is applied to a hot chamber die-casting machine. The double-station clamping mechanism 5 of the present invention has a first fixed mold plate 1 and a second fixed mold plate 4 at both ends thereof, and a shot device 6 and a shot device 7 are respectively connected. The double-station clamping mechanism 5 and the shot device 6 and the shot device 7 are all connected to the frame 10. The first mold station and the second mold station of the double-station clamping mechanism 5 are respectively installed with a mold 8 and a mold 9.
[0009] The movable mold mechanism 3 in the double-station clamping mechanism 5, in addition to the first movable mold plate 31 and the second movable mold plate 34, is also provided with an ejection mechanism 33. Four high-pressure oil cylinder barrels 32 are arranged between the two movable mold plates. The four large rods 2 are respectively connected and fixed on the first fixed mold plate 1 and the second fixed mold plate 4, and the four large rods 2 all pass through the movable mold mechanism 3 and are coaxially matched with the four high-pressure oil cylinder barrels 32 of the movable mold mechanism 3 one by one. A high-pressure piston 35 is fixed on the four large rods 2, which is sealed and slidably matched with the high-pressure oil cylinder barrel 32 to form four high-pressure oil cylinders, which are used to push the movable mold plate to produce axial reciprocating motion along the large rod 2.
[0010] When the movable mold mechanism 3 moves toward the injection device 6, the mold 8 installed at the first mold station is closed until the mold 8 is completely closed and generates a corresponding clamping force. The next process is that the injection device 6 fills the mold 8 with liquid metal material, which is cooled and solidified for a certain period of time to form a die-casting. The next process is that the movable mold mechanism 3 moves toward the injection device 7, the mold 8 is opened, and the mold 9 is closed at the same time. Until the mold 9 is completely closed and generates a corresponding clamping force, the next process is that the injection device 7 fills the mold 9 with liquid metal material, which is cooled and solidified for a certain period of time to form a die-casting. During this process, the mold 8 is in an open mold state, and the ejection mechanism 33 ejects the die-casting formed by the mold 8 and the external peripheral equipment takes the die-casting out of the mold 8. This process is the same as the mold 9. The die-casting molding is basically carried out simultaneously until the die-casting removal of mold 8 and the die-casting molding of mold 9 are completed. Then the next process is that the movable mold mechanism 3 moves toward the injection mechanism 6 again, the mold 8 is closed, and the mold 9 is opened at the same time, and then the mold 8 is injection-molded. The die-casting formed by mold 9 is ejected by the ejection mechanism 33 and taken out by the external supporting peripheral equipment until the die-casting removal of mold 9 and the die-casting molding of mold 8 are completed. In this way, the movable mold mechanism 3 has been performing reciprocating motion, and the mold 8 and the mold 9 have been opening and closing the mold, and the opening of the mold 8 is the closing of the mold 9, and the opening of the mold 9 is the closing of the mold 8. Since most of the production process of mold 8 is superimposed on the production process of mold 9, its cycle period is basically the same as the cycle period when only one set of molds is produced.
[0011] In this embodiment, one device is installed with two sets of molds for simultaneous production. Since its cycle period is basically the same as that of the hot chamber die-casting machine in the prior art, but the hot chamber die-casting machine in the prior art can only be installed with one set of molds for production, the production efficiency of this embodiment is doubled compared with the hot chamber die-casting machine in the prior art.
[0012] In the field of mold forming machinery, such as injection molding machines and cold chamber die-casting machines, the structure of their clamping mechanisms is basically the same as that of hot chamber die-casting machines, and each device can only install one set of molds for production. Similarly, a double-station clamping mechanism can be implemented by referring to the method of this embodiment, so that two sets of molds can be installed for simultaneous production to improve production efficiency.
[0013] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications of the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims of the present invention and equivalent technologies, the present invention also includes these changes and modifications.
Claims
1. A double-station clamping mechanism, comprising a first fixed mold plate 1, four large rods 2, and a movable mold mechanism 3, wherein the movable mold mechanism 3 is provided with a first movable mold plate 31, and a first mold station is formed between the first fixed mold plate 1 and the first movable mold plate 31, characterized in that: It also includes a second fixed mold plate 4; the movable mold mechanism 3 is also provided with a second movable mold plate 34; the second fixed mold plate 4 and the second movable mold plate 34 constitute a second mold station.
2. A double-station clamping mechanism as claimed in claim 1, characterized in that: The movable mold mechanism 3 moves toward the first fixed mold plate 1, which is the first mold station closing the mold, and at the same time the second mold station opening the mold; the movable mold mechanism 3 moves toward the second fixed mold plate 4, which is the second mold station closing the mold, and at the same time the first mold station opening the mold.