CN218399136U

CN218399136U - Composite insulator forming die

Info

Publication number: CN218399136U
Application number: CN202221657350.1U
Authority: CN
Inventors: 丁宁; 刘亚鹏
Original assignee: Henan Jingwei Electric Power Technology Co ltd
Current assignee: Henan Jingwei Electric Power Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-01-31
Anticipated expiration: 2032-06-30

Abstract

The utility model belongs to the technical field of forming die, concretely relates to composite insulator forming die, which comprises an upper template, an upper die cavity, a lower template and a lower die cavity, wherein an upper semi-circular groove is arranged on a module of the upper die cavity close to two end positions, an upper sealing gasket is arranged in the upper semi-circular groove, a lower semi-circular groove is arranged on a module of the lower die cavity close to two end positions, and a lower sealing gasket is arranged in the lower semi-circular groove; an upper locking hole communicated with the upper semi-circular groove is formed in the position, aligned with the upper semi-circular groove, of each of two ends of the upper die cavity, and an upper locking piece used for locking the upper sealing gasket is detachably connected in the upper locking hole; lower mould chamber both ends are aimed at lower semicircle ring groove position and are provided with down the locking hole, the downthehole releasable connection of locking has down the retaining member. The utility model is used for solve present forming die and wear and tear easily and cause the phenomenon of leaking glue when using, cause to fill the type and not fill two and produce the technical problem of defective products.

Description

Composite insulator forming die

Technical Field

The utility model belongs to the technical field of forming die, concretely relates to composite insulator forming die.

Background

A composite insulator is made up of at least two insulating parts, core and umbrella cover, and is equipped with end fittings.

In the prior art, as shown in fig. 1, a composite insulator includes a glass fiber resin core rod 2, a silicone rubber sheath 1, and a first metal fitting 3 and a second metal fitting 4 disposed at two ends of the glass fiber resin core rod 2. The forming die for preparing the composite insulator adopts a die opening and closing mode, an upper die cavity and a lower die cavity are opened firstly during forming, the glass fiber resin core rod assembly with hardware fittings pressed at two ends is placed in the die cavity of the die, then the die is closed, and hot-melt silicone rubber is injected into the die cavity of the die through a rubber injection machine.

However, the forming die used at present has certain defects, the sealing parts of the die blocks at two ends of the forming die and hardware fittings are made of steel materials, and the sealing parts of the die can be worn after long-time use, so that gaps are formed, glue leakage is caused during the forming of the composite insulator, and unqualified products are produced due to insufficient filling; and when the die is repaired subsequently, the modules on the two sides need to be completely disassembled, and the machining is carried out after welding, so that the time is wasted due to the error work.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model aims to provide a composite insulator forming die for wear and tear easily and cause the phenomenon of leaking glue when solving present forming die and using, cause to fill the type and produce the technical problem of defective products less than two.

In order to achieve the above purpose, the technical scheme of the utility model is that: a composite insulator forming die comprises an upper die plate, an upper die cavity, a lower die plate and a lower die cavity, wherein an upper semi-circular groove is formed in a module of the upper die cavity, which is close to two ends of the upper die cavity, an upper sealing gasket is arranged in the upper semi-circular groove, a lower semi-circular groove is formed in a module of the lower die cavity, which is close to two ends of the lower die cavity, and a lower sealing gasket is arranged in the lower semi-circular groove; when the upper die cavity and the lower die cavity are matched, the upper semicircular groove and the lower semicircular groove form a complete circular groove, and the upper sealing gasket and the lower sealing gasket form a complete annular gasket; an upper locking hole communicated with the upper semi-circular groove is formed in the position, aligned with the upper semi-circular groove, of each of two ends of the upper die cavity, and an upper locking piece used for locking the upper sealing gasket is detachably connected in the upper locking hole; lower die cavity both ends are aimed at lower semicircle ring trench position and are provided with down the locking hole, the downthehole releasable connection of locking has down the retaining member.

Preferably, the circular groove is coaxially arranged with the composite insulator arranged in the mold cavity.

Preferably, the upper locking piece and the lower locking piece are both provided with locking screws and are in threaded connection with the upper locking hole and the lower locking hole respectively.

Preferably, the upper sealing gasket and the lower sealing gasket are made of high-temperature-resistant polytetrafluoroethylene.

Preferably, the upper template and the upper die cavity are connected through bolts.

Preferably, the lower template and the lower die cavity are connected through bolts.

Adopt the utility model discloses technical scheme's beneficial effect does:

the utility model discloses be provided with the sealed pad through retaining member locking on the tip module of die cavity, sealed pad closely laminates on the first gold utensil and the second gold utensil at glass fiber resin plug both ends, can effectively prevent to leak gluey to guarantee the qualification rate of product. The semi-circular grooves are formed in the two end modules of the upper die cavity and the lower die cavity, and the sealing gaskets are arranged in the semi-circular grooves, so that the sealing gaskets are tightly attached to the first hardware fittings and the second hardware fittings at the two ends of the glass fiber resin core rod during molding, and the glue leakage can be effectively prevented; the locking hole is formed in the position, aligned with the semicircular groove, of the two ends of the upper die cavity and the lower die cavity, the locking part is detachably connected in the locking hole and used for locking the sealing gasket in the semicircular groove, the phenomenon that the sealing gasket is shifted due to overlarge pressure when the glass fiber resin core rod assembly part is installed or glue is injected is prevented, and the locking device is practical and convenient.

Drawings

Fig. 1 is a schematic view of a composite insulator according to the prior art;

fig. 2 is an overall schematic view of an embodiment of a composite insulator forming mold;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In fig. 1-3, 1-a silicon rubber sheath, 2-a glass fiber resin core rod, 3-a first hardware fitting, and 4-a second hardware fitting; 5-upper template, 51-upper connecting bolt, 6-upper die cavity, 61-upper semi-circular groove, 62-upper locking hole, 63-upper sealing gasket, 64-upper locking piece, 7-lower template, 71-lower connecting bolt, 8-lower die cavity, 81-lower semi-circular groove, 82-lower locking hole and 83-lower sealing gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments, and do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The specific embodiment is as follows:

embodiment 1, as shown in fig. 2 and 3, a composite insulator forming mold includes an upper mold plate 5, an upper mold cavity 6, a lower mold plate 7, and a lower mold cavity 8. Specifically, the upper cavity 6 is detachably connected to the lower side of the upper plate 5. The lower die cavity 8 is detachably connected to the upper side of the lower die plate 7. During molding, the assembly parts of the glass fiber resin core rod 2 with the first hardware fitting 3 and the second hardware fitting 4 which are well pressed at two ends are placed in the upper die cavity and the lower die cavity, die assembly is carried out, the upper die cavity and the lower die cavity are partially exposed out of the first hardware fitting 3 and the second hardware fitting 4, hot-melt silicone rubber is injected into the die cavities through a rubber injection machine, and a silicone rubber sheath 1 coated on the glass fiber resin core rod 2 is formed, so that the composite insulator is manufactured.

An upper semi-circular groove 61 is arranged on the module close to the two ends at the lower side of the upper die cavity 6, and an upper sealing gasket 63 is arranged in the upper semi-circular groove 61. Upper locking holes 62 are provided at positions of both left and right ends of the upper cavity 6 aligned with the upper semicircular groove 61, and the upper locking holes 62 communicate with the upper semicircular groove 61. An upper locking member 64 is detachably attached to the upper locking hole 62 to lock an upper packing 63 disposed in the upper semi-annular groove 61.

A lower semi-circular groove 81 is arranged on the module close to the two ends on the upper side of the lower die cavity 8, and a lower sealing gasket 83 is arranged in the lower semi-circular groove 81. Lower locking holes 82 are formed in the positions, aligned with the lower semicircular groove 81, of the two ends of the lower die cavity 8, and the lower locking holes 82 are communicated with the lower semicircular groove 81. A lower locking member (not shown) is detachably connected to the lower locking hole 82 for locking a lower gasket 83 disposed in the lower semicircular groove 81.

In this embodiment, when the upper cavity 6 and the lower cavity 8 are closed, the upper semi-circular groove 61 and the lower semi-circular groove 81 form a complete circular groove, and the upper gasket 63 and the lower gasket 83 form a complete annular gasket. Based on this, the assembly parts of the glass fiber resin core rod 2 with the two ends being well pressed with the first hardware fitting 3 and the second hardware fitting 4 are arranged in the upper die cavity and the lower die cavity and are closed, the annular gasket is tightly attached to the first hardware fitting 3 and the second hardware fitting 4, sealing is achieved, and glue leakage is effectively prevented.

When the composite insulator forming die is used, the assembly parts of the glass fiber resin core rods 2 with the two ends connected with the first hardware fitting 3 and the second hardware fitting 4 in a pressing mode are arranged in the upper die cavity and the lower die cavity, the upper die cavity 6 and the lower die cavity 8 are matched, hot-melt silicon rubber is injected into the die cavities through the rubber injection machine, and forming and manufacturing of the composite insulator are completed. Because the complete annular packing ring that upper seal pad 63 and lower seal pad 83 constitute, closely laminate on first gold utensil 3 and second gold utensil 4, realize sealed, effectively prevent the hourglass gluey phenomenon. The upper seal gasket 63 is locked and fixed through the upper locking part 64, the lower seal gasket 83 is locked and fixed through the lower locking part, the assembly processes of the glass fiber resin core rods 2 of the first hardware fitting 3 and the second hardware fitting 4 are well crimped at two ends, and the pressure in the mold cavity is increased during glue injection, so that the annular gasket can be prevented from being displaced, and the use reliability is improved. Meanwhile, when the upper and

lower sealing gaskets

63 and 83 are worn, the upper locking part 64 and the lower locking part are disassembled, and the sealing gasket is replaced, so that the mode is quick and convenient, the problem of glue leakage is solved, and the working hour and cost for repairing the die are saved.

Further, the circular ring groove that first half circular ring groove 61 and lower half circular ring groove 81 constitute sets up with the composite insulator coaxial arrangement of arranging the die cavity in to promote the compactness of laminating between annular packing ring and the gold utensil.

Furthermore, the upper locking piece 64 and the lower locking piece both adopt locking screws, and the locking screws are in threaded connection with the upper locking hole 62 and the lower locking hole 82, so that the assembly is more convenient.

Further, the upper seal 63 and the lower seal 83 are made of a high temperature resistant material, such as fluororubber, silicone rubber, or the like, and any one of them is selected.

Further, the upper die plate 5 and the upper die cavity 6 are detachably connected through the upper connecting bolt 51, so that the upper die plate and the upper die cavity are conveniently disassembled, and are independently replaced when being damaged.

Furthermore, the lower die plate 7 and the lower die cavity 8 are detachably connected through the lower connecting bolt 71, so that the lower die plate and the lower die cavity are conveniently disassembled, and are independently replaced when being damaged.

The present invention is described above with reference to the accompanying drawings, it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements made by the technical solution of the present invention or the present invention is directly applied to other occasions without improvement, all within the protection scope of the present invention.

Claims

1. A composite insulator forming die comprises an upper template, an upper die cavity, a lower template and a lower die cavity, and is characterized in that a module of the upper die cavity close to two ends is provided with an upper semicircular groove, an upper sealing pad is arranged in the upper semicircular groove, a module of the lower die cavity close to two ends is provided with a lower semicircular groove, and a lower sealing pad is arranged in the lower semicircular groove; when the upper die cavity and the lower die cavity are matched, the upper semicircular groove and the lower semicircular groove form a complete circular groove, and the upper sealing gasket and the lower sealing gasket form a complete annular gasket; an upper locking hole communicated with the upper semi-circular groove is formed in the position, aligned with the upper semi-circular groove, of each of two ends of the upper die cavity, and an upper locking piece used for locking the upper sealing gasket is detachably connected in the upper locking hole; lower mould chamber both ends are aimed at lower semicircle ring groove position and are provided with down the locking hole, the downthehole releasable connection of locking has down the retaining member.

2. The mold for molding a composite insulator according to claim 1, wherein the circular groove is coaxially disposed with the composite insulator disposed in the mold cavity.

3. The composite insulator forming die as claimed in claim 2, wherein the upper locking member and the lower locking member are both provided with locking screws, and are respectively in threaded connection with the upper locking hole and the lower locking hole.

4. The mold for molding a composite insulator according to claim 3, wherein the upper sealing gasket and the lower sealing gasket are made of high temperature resistant polytetrafluoroethylene.

5. The composite insulator forming die as claimed in any one of claims 1 to 4, wherein the upper die plate and the upper die cavity are connected by bolts.

6. The composite insulator forming die according to any one of claims 1 to 4, wherein the lower die plate and the lower die cavity are connected through bolts.