Rubber forming die for flexible impeller of sea water pump

Abstract

The utility model discloses a rubber forming die for a flexible impeller of a sea water pump, which belongs to rubber dies and is characterized in that four supporting columns are fixedly connected to the upper end of a die body, a feeding plate and a pressurizing plate which can move up and down are connected to the supporting columns, and a top plate is fixedly connected to the top ends of the supporting columns. A lifting hydraulic device is fixedly connected between the lower surface of the top plate and the upper surface of the pressurizing plate, a lifting hydraulic hollow jacking column is installed at the bottom of the mold body, a fixing cylinder is fixed in the lifting hydraulic hollow jacking column, and a lifting hydraulic device is installed between the lifting hydraulic hollow jacking column and the fixing cylinder. The compression molding device has the advantages that when the compression molding device is used, the lifting hydraulic device is used for controlling the pressurizing plate to move downwards to apply pressure to the feeding plate so as to carry out compression molding on rubber compound in the mold body, and the heating sleeve is used for carrying out vulcanization molding on the rubber compound in the mold body. And after vulcanization is completed, the finished impeller is ejected out through upward movement of the lifting hydraulic hollow ejection column, and a worker can conveniently take out the product.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rubber mould field, especially relates to a rubber forming mould of seawater pump flexible impeller. BACKGROUND

[0002] As the main equipment of fluid delivery, centrifugal pump is widely used in irrigation and drainage of agriculture, water supply and drainage of city, slurry delivery of petroleum industry and other fields. In recent years, low-noise and high-efficiency seawater pumps have been developed for seawater desalination, equipment heat dissipation of offshore platform and seawater aquaculture. Among them, the structure and material selection of the impeller as the main component of the centrifugal pump have a significant impact on the fluid delivery performance of the pump. Compared with the conventional impeller, the flexible impeller has significant advantages in the basic working principle: the impeller rotates through the eccentric cam, the inlet pipe cavity is large, and more fluid is sucked; the outlet pipe cavity is small, and more fluid is squeezed out. On the other hand, the use of rubber as the material of the impeller not only ensures the processing convenience, but also improves the corrosion resistance of the impeller. At present, the mold is usually used to process and prepare the impeller, but it is difficult to take out the finished product from the mold. SUMMARY

[0003] The utility model aims at solving the problem that the finished product of the impeller is difficult to be taken out from the mold, and proposes a rubber forming mold of seawater pump flexible impeller.

[0004] To solve the above problems, the utility model adopts the following technical scheme: a rubber forming mold of seawater pump flexible impeller, including mold body, characterized by: four support columns are fixedly connected to the upper end of the mold body, a feed plate and a pressing plate that can move up and down are connected to the support columns, a top plate is fixedly connected to the top end of the support column, a lifting hydraulic device is fixedly connected between the lower surface of the top plate and the upper surface of the pressing plate, a lifting hydraulic hollow top column is installed at the bottom of the mold body, a fixed cylinder is fixedly connected in the lifting hydraulic hollow top column, and a lifting hydraulic device is installed between the lifting hydraulic hollow top column and the fixed cylinder.

[0005] A feed hole penetrating the feed plate is formed in the feed plate.

[0006] The top of the lifting hydraulic device in the lifting hydraulic hollow top column is provided with a lifting ring, the outer diameter of the lifting ring is slightly smaller than the outer diameter of the impeller shaft, and the inner diameter of the lifting ring is slightly larger than the diameter of the fixed cylinder.

[0007] Positioning holes are arranged on the support columns, and positioning rods are connected with the positioning holes.

[0008] The size and height of the impeller in the mold body are smaller than the height between the upper end of the mold body and the positioning hole.

[0009] A heating jacket is arranged in the mold body.

[0010] The utility model has the advantages of the following:

[0011] 1. Compared with the prior art, the rubber forming die of the seawater pump flexible impeller controls the downward movement of the pressing plate on the feeding plate by the lifting hydraulic device to press the rubber compound in the die body, and the rubber compound in the die body is vulcanized and formed by the heating jacket.

[0012] 2. Compared with the prior art, the rubber forming die of the seawater pump flexible impeller is lifted by the lifting hydraulic device in the lifting hydraulic hollow jacking column to eject the finished product impeller, which facilitates the staff to take out the product. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the front view of the utility model;

[0014] Figure 2 is the top view of the pressing plate of the utility model;

[0015] Figure 3 is the top view of the feeding plate of the utility model;

[0016] Figure 4 is the top view of the die body of the utility model;

[0017] Figure 5 is the sectional view of the die body of the utility model;

[0018] Figure 6 is the sectional view of the lifting hydraulic device of the utility model;

[0019] Figure 7 is the sectional view of the lifting hydraulic hollow jacking column of the utility model.

[0020] LEGEND:

[0021] 1-die body, 2-supporting column, 3-feeding plate, 4-pressing plate, 5-top plate, 6-lifting hydraulic device, 7-feeding hole, 8-lifting hydraulic hollow jacking column, 9-impeller shaft outer diameter, 10-fixed cylinder, 11-positioning rod, 12-positioning hole, 13-heating jacket, 14-lifting ring. DETAILED DESCRIPTION

[0022] In order to make the utility model apparent and easy to understand, the technical solutions in the utility model will be described clearly and completely below in combination with the drawings in the embodiments. Obviously, the following described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the patent application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the patent application.

[0023] Embodiment: refer toFigures 1-7 The utility model provides a kind of rubber forming mould of flexible impeller of seawater pump, including mould body 1, four support columns 2 are fixedly connected on the upper end of mould body 1, feed plate 3 and pressure plate 4 with up and down activity are connected on support column 2, top plate 5 is fixedly connected on the top end of support column 2, and the upper surface between pressure plate 4 and the lower surface of top plate 5 is fixedly connected with lifting hydraulic device 6, which is driven by the pressure of hydraulic oil, so that the piston of hydraulic cylinder reciprocates upward and downward to drive pressure plate 4 to move up and down.Feed plate 3 is provided with a plurality of feed holes 7 that pass through feed plate 3, for pressing rubber into mould body 1.Lifting hydraulic hollow top column 8 is installed at the bottom of mould body 1, and fixed cylinder 10 is fixed inside lifting hydraulic hollow top column 8.Lifting hydraulic device 6 is installed between lifting hydraulic hollow top column 8 and fixed cylinder 10, and the top of lifting hydraulic device 6 is provided with hydraulic ring 14.Lifting hydraulic device 6 is driven by the pressure of hydraulic oil, so that the piston of hydraulic cylinder reciprocates upward and downward, and then drives hydraulic ring 14 to move up and down, and the finished product impeller is ejected by hydraulic ring 14.The outer diameter of lifting ring 14 in lifting hydraulic hollow top column 8 is slightly smaller than the outer diameter 9 of impeller shaft, and the inner diameter of lifting ring 14 in lifting hydraulic hollow top column 8 is slightly larger than the diameter of fixed cylinder 10.The side wall of support column 2 is provided with positioning hole 12, and positioning rod 11 is threadedly connected with positioning hole 12, for fixing feed plate 3 above mould when taking out impeller.The size height of impeller in mould body 1 is less than the height between the upper end of mould body 1 and positioning hole 12, to facilitate the ejection of finished product impeller.Heating jacket 13 is installed in the interlayer of mould body 1, for vulcanizing rubber.

[0024] Working principle: when using, part of rubber is placed in mould body, and part of rubber is placed on feed plate 3, the rubber in feed plate 3 is pressed into mould body through feed hole 7 by lifting hydraulic device 6 to control pressure plate 4 to move downward and press feed plate 3, at the same time, lifting hydraulic device 6 controls pressure plate 4 to move downward to press and form rubber in mould body 1, and rubber in mould body 1 is vulcanized and formed by heating jacket 13.After vulcanization, lifting hydraulic device 6 in lifting hydraulic hollow top column 8 moves upward, and the finished product impeller is ejected by lifting ring 14, to facilitate staff to take out product.

[0025] Finally, it should be pointed out that: the above-mentioned only for preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the professional technical personnel of the field, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A rubber molding mold for a flexible impeller of a sea water pump, comprising a mold body (1), characterized by: The upper end of the mold body (1) is fixedly connected with four support columns (2), the support columns (2) are connected with an up-and-down movable feeding plate (3) and a pressing plate (4), the top end of the support column (2) is fixedly connected with a top plate (5), the top plate (5) is fixedly connected between the lower surface of the top plate (5) and the upper surface of the pressing plate (4), and a lifting hydraulic device (6) is arranged between the top plate (5) and the pressing plate (4), the bottom of the mold body (1) is provided with a lifting hydraulic hollow top column (8), the lifting hydraulic hollow top column (8) is fixedly connected with a fixed cylinder (10), and the lifting hydraulic device (6) is arranged between the lifting hydraulic hollow top column (8) and the fixed cylinder (10).

2. A rubber molding mold for a flexible impeller of a sea water pump according to claim 1, characterized in that: The feeding plate (3) is provided with a feeding hole (7) penetrating through the feeding plate (3).

3. The rubber molding mold for a flexible impeller of a sea water pump according to claim 1, characterized by: The lifting hydraulic device (6) in the lifting hydraulic hollow top column (8) is provided with a lifting ring (14) at the top, the outer diameter of the lifting ring (14) is slightly smaller than the outer diameter (9) of the impeller shaft, and the inner diameter of the lifting ring (14) is slightly larger than the diameter of the fixed cylinder (10).

4. The rubber molding mold for a flexible impeller of a sea water pump according to claim 1, characterized by: The support column (2) is provided with a positioning hole (12), and a positioning rod (11) is connected with the positioning hole (12).

5. The rubber molding mold for a flexible impeller of a sea water pump according to claim 1, characterized by: The size of the impeller in the mold body (1) is smaller than the height between the upper end of the mold body (1) and the positioning hole (12).

6. A rubber molding mold for a flexible impeller of a sea water pump according to claim 1, characterized in that: The mold body (1) is provided with a heating jacket (13).

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