Movable mold plate ejection structure

Abstract

The utility model relates to the technical field of injection molding machines, in particular to a movable mold plate ejection structure, which comprises a movable mold plate, an ejection oil cylinder, an ejection plate, an ejection rod and an ejection seat, a mounting cavity is arranged on the movable mold plate, the ejection oil cylinder is positioned in the mounting cavity, the ejection oil cylinder is fixedly connected with the movable mold plate, the ejection oil cylinder is a double-rod hydraulic cylinder, and the ejection plate is positioned in the mounting cavity. Double rods of the ejection oil cylinder are respectively a first rod end and a second rod end, the first rod end of the ejection oil cylinder is fixedly connected with the ejection seat, the ejection seat is positioned in the mounting cavity, the second rod end of the ejection oil cylinder is fixedly connected with the ejection plate, the ejection oil cylinder is positioned between the ejection plate and the ejection seat, one end of the ejection rod is fixedly connected with the ejection plate, and the other end of the ejection rod is fixedly connected with the ejection seat. The other end of the ejector rod extends into the movable mold plate, the ejector oil cylinder is arranged inside, a double-rod structure is adopted, the axial length of the whole machine is shortened by 15%-20%, and the site requirements of customers are reduced.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and in particular to a moving template ejection structure. Background Technology

[0002] Traditional injection molding machine ejection structures typically employ external ejection cylinders, which are mounted on the outside of the moving platen. This results in a larger axial length for the entire machine, occupying more installation space for the customer. Furthermore, to meet safety requirements, the safety door needs to be widened, increasing manufacturing costs. In addition, existing single-axis ejection cylinders are prone to uneven loading during ejection due to uneven force distribution, affecting ejection stability and mold life.

[0003] Chinese patent CN201220242670.0, entitled "An Installation Structure of Moving Platen and Ejector Components for a Two-Plate Injection Molding Machine," includes a moving platen and an ejector component. A mold is mounted on one side of the moving platen, and the ejector component is mounted on the other side. The ejector component includes an ejector cylinder, an ejector plate, a guide rod, and multiple ejector rods. One end of the guide rod is fixed to the moving platen, and the other end is fixed to the ejector cylinder. The ejector plate is fitted onto the guide rod, and the ejector cylinder drives the ejector plate. The multiple ejector rods are fixed to the ejector plate. The moving platen is a box-type moving platen. However, it uses a single-axis ejector cylinder, which results in a large space occupation, insufficient stability, and high cost of the safety door in the ejector structure. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to overcome the problem that the existing injection molding motor template ejection structure usually adopts an external ejection cylinder, which is installed on the outside of the moving template, resulting in a large axial length of the whole machine and occupying the customer's installation space, a moving template ejection structure is provided.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a moving template ejection structure, including a moving template, an ejection cylinder, an ejection plate, an ejection rod, and an ejection seat. An installation cavity is provided on the moving template, the ejection cylinder is located inside the installation cavity, and the ejection cylinder is fixedly connected to the moving template. The ejection cylinder is a double-rod hydraulic cylinder, with the two rods being a first rod end and a second rod end. The first rod end of the ejection cylinder is fixedly connected to the ejection seat, which is located inside the installation cavity. The second rod end of the ejection cylinder is fixedly connected to the ejection plate, and the ejection cylinder is located between the ejection plate and the ejection seat. One end of the ejection rod is fixedly connected to the ejection plate, and the other end of the ejection rod extends into the moving template. By embedding the ejection cylinder and adopting a double-rod structure, the axial length of the entire machine is shortened by 15%-20%, reducing customer site requirements; cost savings: the reduced overall machine size results in a corresponding reduction in the width of the safety door, saving on safety door material costs; stable operation: the symmetrical layout of the double rods, combined with the guide rod, eliminates off-center loading.

[0006] To address the issue of unstable movement of the ejector plate, the ejector structure further includes several guide rods, which are slidably connected to the ejector plate and fixedly connected at the other end to the moving template.

[0007] To address the issue of the ejector plate detaching from the guide rod and causing jamming, the ejector structure further includes a limiting seat. The limiting seat and the guide rod are fixedly connected at the end away from the moving template, and the ejector plate is located between the limiting seat and the moving template.

[0008] Further, the limiting seat has an avoidance hole, and the ejector plate has a positioning protrusion on the side near the limiting seat, which can be embedded in the avoidance hole.

[0009] It further includes a receiving groove for accommodating the ejector cylinder on the side of the ejector plate near the ejector cylinder.

[0010] The beneficial effects of this utility model are: the moving template ejection structure provided by this utility model has an internal ejection cylinder and adopts a double rod structure, which shortens the axial length of the whole machine by 15%-20% and reduces the customer's site requirements; cost saving: the reduction in the size of the whole machine makes the width of the safety door correspondingly smaller, saving the material cost of the safety door; stable operation: the symmetrical layout of the double rods, together with the guide rod, eliminates the phenomenon of eccentric load. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention in the ejected state;

[0013] Figure 2 This is a front view structural diagram of the present invention;

[0014] Figure 3 This is a utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0015] Figure 4 This is a three-dimensional structural diagram of the present invention in its un-ejected state;

[0016] Figure 5 This is a utility model Figure 4 A schematic diagram of the front view structure in the diagram;

[0017] Figure 6 This is a practical book Figure 5 A schematic diagram of the structure in cross-section;

[0018] In the diagram: 1. Moving template, 11. Mounting cavity, 2. Ejection cylinder, 21. First rod end, 22. Second rod end, 3. Ejection plate, 31. Positioning protrusion, 32. Receiving groove, 4. Ejection rod, 5. Ejection seat, 6. Guide rod, 7. Limiting seat, 71. Clearance hole. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] like Figure 1 This is a schematic diagram of the structure of this utility model, a moving template ejection structure, including a moving template 1, an ejection cylinder 2, an ejection plate 3, an ejection rod 4, and an ejection seat 5. The moving template 1 has an installation cavity 11, and the ejection cylinder 2 is located within the installation cavity 11 and is fixedly connected to the moving template 1. The ejection cylinder 2 is a double-rod hydraulic cylinder, with the two rods being a first rod end 21 and a second rod end 22. The first rod end 21 of the ejection cylinder 2 is fixedly connected to the ejection seat 5, which is located within the installation cavity 11. The second rod end 22 of the oil cylinder 2 is fixedly connected to the ejector plate 3, and the ejector cylinder 2 is located between the ejector plate 3 and the ejector seat 5. One end of the ejector rod 4 is fixedly connected to the ejector plate 3, and the other end of the ejector rod 4 extends into the moving template 1. The ejector cylinder 2 is built in and adopts a double rod structure, which shortens the axial length of the whole machine by 15%-20%, reducing the customer's site requirements; cost savings: the reduction in the size of the whole machine makes the width of the safety door correspondingly smaller, saving the material cost of the safety door; stable operation: the double rod symmetrical layout, together with the guide rod, eliminates the phenomenon of eccentric load.

[0021] like Figure 2 , 3 As shown in Figures 5 and 6, the ejection structure also includes several guide rods 6. The guide rods 6 are slidably connected to the ejection plate 3, and the other end is fixedly connected to the moving template 1. The core function of the guide rods is to guide the ejection plate to move along a predetermined straight trajectory, preventing it from deviating or tilting during the ejection process. The guide rods also serve as a support component for the ejection plate, sharing the load during the ejection process and preventing the ejection plate from bending or breaking due to force.

[0022] like Figure 2 , 3 As shown in Figures 5 and 6, the ejection structure also includes a limiting seat 7. The limiting seat 7 and the guide rod 6 are fixedly connected at the end away from the moving template 1. The ejection plate 3 is located between the limiting seat 7 and the moving template 1. The core function of the limiting seat 7 is to fix the guide rod 6, enhance the overall strength of the mechanism, and ensure that the ejection plate 3 slides reliably and accurately.

[0023] like Figure 1 , 3As shown, the limiting seat 7 has an avoidance hole 71, and the ejector plate 3 has a positioning protrusion 31 protruding on the side near the limiting seat 7. The positioning protrusion 31 can be embedded in the avoidance hole 71.

[0024] like Figure 3 , 6 As shown, the ejector plate 3 has a receiving groove 32 on the side near the ejector cylinder 2 to accommodate the ejector cylinder 2. The receiving groove 32 can provide a moving distance for the piston rod of the ejector cylinder 2.

[0025] When in use, the action of the ejector cylinder 2 can shorten the axial length of the whole machine by 15%-20%, reducing the customer's site requirements.

[0026] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A moving template ejection structure, characterized in that, The assembly includes a movable template (1), an ejector cylinder (2), an ejector plate (3), an ejector rod (4), and an ejector seat (5). The movable template (1) has an installation cavity (11). The ejector cylinder (2) is located in the installation cavity (11) and is fixedly connected to the movable template (1). The ejector cylinder (2) is a double-rod hydraulic cylinder, and the two rods of the ejector cylinder (2) are the first rod end (21) and the second rod end (22). The first rod end (21) of the ejector cylinder (2) is fixedly connected to the ejector seat (5), the ejector seat (5) is located in the mounting cavity (11), the second rod end (22) of the ejector cylinder (2) is fixedly connected to the ejector plate (3), and the ejector cylinder (2) is located between the ejector plate (3) and the ejector seat (5). One end of the ejector rod (4) is fixedly connected to the ejector plate (3), and the other end of the ejector rod (4) extends into the moving template (1).

2. The moving template ejection structure as described in claim 1, characterized in that: The ejection structure also includes several guide rods (6), which are slidably connected to the ejection plate (3) and fixedly connected to the moving template (1) at the other end.

3. The moving template ejection structure as described in claim 2, characterized in that: The ejection structure also includes a limiting seat (7), which is fixedly connected to the guide rod (6) at the end away from the moving template (1), and the ejection plate (3) is located between the limiting seat (7) and the moving template (1).

4. The moving template ejection structure as described in claim 3, characterized in that: The limiting seat (7) has an avoidance hole (71), and the ejector plate (3) has a positioning protrusion (31) protruding on the side near the limiting seat (7), and the positioning protrusion (31) can be embedded in the avoidance hole (71).

5. The moving template ejection structure as described in claim 1, characterized in that: The ejector plate (3) has a receiving groove (32) for accommodating the ejector cylinder (2) on the side near the ejector cylinder (2).

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