EVA (Ethylene Vinyl Acetate) mold station for large mold

Abstract

The utility model relates to the field of EVA (Ethylene Vinyl Acetate) forming machines, in particular to an EVA mold station for a large mold, which comprises a rack, an injection device, a middle plate, a lower plate and two oil cylinder groups, the middle plate, the lower plate and the two oil cylinder groups are arranged in the rack, the two oil cylinder groups are arranged on the lower plate, and a mold placing space is formed between the middle plate and the oil cylinder groups. An injection window is formed in one side of the mold containing space towards the injection device, the two oil cylinder sets are arranged in parallel at intervals in the extending direction of the plane where the injection window is located, each oil cylinder set comprises three pressurizing oil cylinders, and the three pressurizing oil cylinders are arranged at intervals in the direction perpendicular to the injection window. According to the utility model, the oil cylinder groups which are parallel to the injection window are adopted, and the three oil cylinders which are arranged at intervals along the direction vertical to the injection window are arranged in each oil cylinder group, so that the mold station can be suitable for large-size molds and also can be suitable for small-size molds, and the application range of the mold station is widened.

Description

Technical Field

[0001] The utility model relates to the field of EVA molding machines, in particular to an EVA mold station for large molds. Background Art

[0002] In the existing shoemaking field, in the process of sole injection molding, a mold station is usually set up to heat and mold the mold in the mold station. The heating plate is set in the middle plate and the lower plate position in the mold station and driven by the lifting mechanism. When the mold is in the mold closing state, the mold sealing is reported by the booster cylinder. The existing technology is usually a multi-station structure, that is, multiple mold stations are set side by side, so the injection and mold removal directions are often fixed. The mold station structure in the existing technology is usually only suitable for small-sized molds and cannot be used for injection molding of large-sized molds. Therefore, the scope of use is small and cannot cope with orders with special requirements. Utility Model Content

[0003] The main purpose of the utility model is to overcome the shortcomings of the prior art and provide an EVA mold station for large molds, which adopts a cylinder group arranged parallel to the injection window, and each cylinder group is provided with three cylinders arranged at intervals along the direction perpendicular to the injection window, so that the mold station can be suitable for large-sized molds as well as small-sized molds, thereby improving the application range of the mold station.

[0004] The utility model adopts the following technical solutions:

[0005] An EVA mold station for large molds, including a frame, an injection device, a middle plate and a lower plate arranged in the frame, the lower plate being fixedly arranged at the bottom of the frame, the middle plate being liftable and arranged above the lower plate, and also including two cylinder groups, the two cylinder groups being arranged on the lower plate, a mold placement space being formed between the middle plate and the cylinder groups, one side of the mold placement space forming an injection window facing the injection device, the two groups of cylinder groups being arranged in parallel and spaced apart along the extension direction of the plane where the injection window is located, the cylinder group including three booster cylinders, and the three booster cylinders being arranged spaced apart along a direction perpendicular to the injection window.

[0006] Furthermore, it also includes an upper plate and a lifting device, wherein the upper plate is fixedly arranged in the frame and is located above the middle plate, and the lifting device is connected to and drives the middle plate to rise and fall.

[0007] Furthermore, the booster cylinders of the two cylinder groups correspond to each other one by one, and two adjacent booster cylinders of the two cylinder groups are located on the same straight line.

[0008] Furthermore, each group of the cylinder groups is respectively provided with a lower heating plate, and an upper heating plate corresponding to the lower heating plate is provided at the bottom of the middle plate, the lower heating plate and the upper heating plate correspond one to one, and the lower heating plate and the upper heating plate extend in a direction perpendicular to the injection window.

[0009] Furthermore, the lower heating plate arranged on each cylinder group completely covers all the booster cylinders in the cylinder group.

[0010] Furthermore, the frame includes four columns, the middle plate and the lower plate are arranged between the four columns, and the middle plate, the cylinder group and the four columns surround the mold placement space, and the two cylinder groups are located between the columns on both sides of the injection window.

[0011] From the above description of the utility model, it can be seen that compared with the prior art, the beneficial effects of the utility model are:

[0012] First, a cylinder group is arranged parallel to the injection window, and each cylinder group is provided with three cylinders arranged at intervals along the direction perpendicular to the injection window, so that the mold station can be suitable for large-size molds as well as small-size molds, thereby improving the application range of the mold station.

[0013] Second, since the cylinders in the cylinder group are arranged in a direction perpendicular to the injection window, the mold can be placed in a direction perpendicular to the injection window, and the mold can be taken in and placed at the position of the injection window, which is convenient for taking in and placing special molds such as long strips.

[0014] Third, the two cylinder groups are arranged at intervals, and molds can be placed on the two cylinder groups for injection molding respectively. Two molds can be placed at the same time to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural side view of a specific embodiment of the utility model;

[0016] Figure 2 It is a structural front view of a specific implementation method of the utility model;

[0017] Figure 3 This is a top view of the structure with multiple mold stations arranged side by side. The arrows in the figure indicate the direction of loading and unloading the molds.

[0018] In the figure: 1. frame, 10. column, 11. injection window, 2. middle plate, 3. lower plate, 4. upper plate, 5. lifting device, 6. cylinder group, 60. booster cylinder, 7. lower heating plate, 8. upper heating plate, 9. injection device. DETAILED DESCRIPTION

[0019] The present invention is further described below through specific implementation methods.

[0020] Reference Figures 1 to 3 The utility model is an EVA mold station for large molds, comprising a frame 1, a middle plate 2, a lower plate 3, an upper plate 4, a lifting device 5, two cylinder groups 6, a lower heating plate 7, an upper heating plate 8 and an injection device 9. The frame 1 comprises four columns 10, the middle plate 2, the lower plate 3 and the upper plate 4 are arranged between the four columns 10, the upper plate 4 is fixedly arranged on the top of the frame 1, the lower plate 3 is fixedly arranged on the bottom of the frame 1, the middle plate 2 can be lifted and arranged between the upper plate 4 and the lower plate 3, and the lifting device 5 is connected to and drives the middle plate 2 to move upward and downward. The plate 2 is raised and lowered, and the two cylinder groups 6 are arranged on the lower plate 3, and the middle plate 2, the cylinder group 6 and the four columns 10 surround a mold placement space, and one side of the mold placement space faces the injection device 9 to form an injection window 11, and the two cylinder groups 6 are located between the columns 10 on both sides of the injection window 11. The two groups of cylinder groups 6 are arranged in parallel and spaced apart along the extension direction of the plane where the injection window 11 is located, and the cylinder group 6 includes three booster cylinders 60, and the three booster cylinders 60 are arranged in spaced apart along the direction perpendicular to the injection window 11.

[0021] The booster cylinders 60 of the two cylinder groups 6 correspond one to one, and two adjacent booster cylinders 60 of the two cylinder groups 6 are located on the same straight line. A lower heating plate 7 is provided on each cylinder group 6, and an upper heating plate 8 corresponding to the lower heating plate 7 is provided at the bottom of the middle plate 2. The lower heating plate 7 corresponds to the upper heating plate 8, and the lower heating plate 7 and the upper heating plate 8 extend in a direction perpendicular to the injection window 11. The lower heating plate 7 provided on each cylinder group 6 completely covers all the booster cylinders 60 in the cylinder group 6.

[0022] Continue to refer to Figures 1 to 3When the utility model is used, the mold is placed in the mold placement space, and the middle plate 2 is driven by the lifting device 5 to descend to close the mold. The booster cylinder 60 clamps the mold, and the injection device 9 injects material into the mold from the position of the injection window 11. At the same time, the upper heating plate 8 and the lower heating plate 7 begin to heat the mold. After the injection is completed, it is heated and vulcanized. After the vulcanization is completed, the mold can be opened to take out the finished product. Since the two cylinder groups 6 are arranged at intervals along the position of the parallel injection window 11, and each cylinder group 6 is independently provided with a lower heating plate 7, the two molds can be heated at the same time, thereby improving production efficiency. When making some special products, such as road cones, highway crash buckets and other products, it is necessary to use a long strip mold. This mold is relatively long, so each cylinder group 6 has three booster cylinders 60 arranged perpendicular to the injection window 11, which can be adapted to this type of mold, improve the scope of application of the mold station, and the mold can be directly loaded and unloaded from the injection window 11 or the side facing the injection window 11 (such as Figure 3 (direction indicated by the arrow in the middle), making it easier to remove large, long products.

[0023] The above is only a specific implementation of the present utility model, but the design concept of the present utility model is not limited to this. Any non-substantial changes to the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. An EVA mold station for a large mold, comprising a frame, an injection device, a middle plate and a lower plate arranged in the frame, wherein the lower plate is fixedly arranged at the bottom of the frame, and the middle plate can be raised and lowered above the lower plate, characterized in that: It also includes two cylinder groups, which are arranged on the lower plate, and a mold placement space is formed between the middle plate and the cylinder groups. One side of the mold placement space forms an injection window facing the injection device, and the two groups of cylinder groups are arranged in parallel and spaced apart along the extension direction of the plane where the injection window is located. The cylinder group includes three boosting cylinders, and the three boosting cylinders are arranged in a spaced apart direction perpendicular to the injection window.

2. The EVA mold station for large molds according to claim 1, characterized in that: It also includes an upper plate and a lifting device, wherein the upper plate is fixedly arranged in the frame and is located above the middle plate, and the lifting device is connected to and drives the middle plate to rise and fall.

3. The EVA mold station for large molds according to claim 1, characterized in that: The booster cylinders of the two cylinder groups correspond to each other one by one, and two adjacent booster cylinders of the two cylinder groups are located on the same straight line.

4. The EVA mold station for large molds according to claim 3, characterized in that: A lower heating plate is respectively arranged on each group of the oil cylinder groups, and an upper heating plate corresponding to the lower heating plate is arranged at the bottom of the middle plate, the lower heating plate and the upper heating plate correspond to each other one by one, and the lower heating plate and the upper heating plate extend in a direction perpendicular to the injection window.

5. The EVA mold station for large molds according to claim 4, characterized in that: The lower heating plate arranged on each group of the cylinder groups completely covers all the booster cylinders in the cylinder group.

6. The EVA mold station for large molds according to claim 1, characterized in that: The frame includes four columns, the middle plate and the lower plate are arranged between the four columns, and the middle plate, the cylinder group and the four columns surround the mold placement space, and the two cylinder groups are located between the columns on both sides of the injection window.

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