Insulator clay blank mold and manufacturing process thereof

Abstract

The present invention relates to the technical field of insulators, and specifically to an insulator clay blank mold and a manufacturing process thereof. The insulator clay blank mold comprises a mold and a breathable sleeve, wherein a mold cavity for placing the clay blank is provided in the mold, the mold opening faces upward, and a plurality of exhaust holes penetrating the mold from top to bottom are provided in the mold, wherein the exhaust holes comprise a main exhaust hole and a plurality of secondary exhaust holes, wherein the main exhaust hole is provided at the center of the mold, and the secondary exhaust holes are evenly distributed around the main exhaust hole, and the breathable sleeve is provided on the mold cavity. The insulator clay blank mold of the present invention comprises a mold and a breathable sleeve, wherein a mold cavity is provided in the mold, the clay blank is placed in the mold cavity, and the clay blank is formed in the mold cavity by extruding the clay blank, and a plurality of exhaust holes are provided in the mold, and the exhaust holes penetrate the mold, and when the clay blank is extruded, the air in the mold cavity is discharged through the main exhaust hole, the secondary exhaust hole, and the connecting hole, and converges to the outlet of the main exhaust hole, so as to avoid bubbles in the formed clay blank.

Description

Technical Field

[0001] The invention relates to the technical field of insulators, and in particular to an insulator clay blank mould and a manufacturing process thereof. Background Art

[0002] At present, in the electric porcelain insulator industry, electric porcelain insulator products are all handmade. The clay blanks are placed on the operating table according to the requirements and completed by workers. The processing of disc insulators generally includes multiple steps such as pressing and forming, repairing the inner blanks, and repairing the outer blanks. The operation is relatively cumbersome. Due to the low efficiency of manual manufacturing, automatic production and processing equipment for electric porcelain insulators has gradually emerged. In the process of pressing and forming, molds are required to shape the clay blanks.

[0003] For example, the patent with application number CN201821943032.5 discloses a glass insulator production mold, which relates to the technical field of glass insulators. The utility model includes a lower template and an upper template. The lower template is provided with a core groove, and the inner surface of the core groove is matched with a core. The lower surface of the upper template is provided with a main skirt groove and a protruding groove. The upper surface of the core is provided with concentric skirt grooves and protrusions. A cavity is formed between the upper surface of the core and the main skirt groove and the protruding groove. The upper end of the cavity, i.e., the protruding groove, is connected to the injection flow channel of the mold. The lower end face of the core is provided with a cold medium direct current channel and concentric circular flow channels, and the concentric circular flow channels are connected to the cold medium direct current channel. The utility model arranges a cooling flow channel on the core, and the flow channel extends from the lower end face to the inner side of the cavity. The flow channel itself is easy to process, and only one cooling medium inlet is required to achieve a better cooling effect, thereby improving product quality.

[0004] The mold of the above patent is used to produce glass insulators, while the production of porcelain insulators requires shaping of the clay blank. The porcelain insulator mold of the prior art is usually relatively simple, and generally has a disc-type insulator-shaped mold cavity. When pressing the blank, the clay blank is placed in the mold cavity. Due to the high speed of pressing the blank, the air in the mold cavity cannot be discharged in time, which easily causes bubbles to be contained in the molded clay blank, affecting the performance of the porcelain insulator. In addition, after demolding, the clay may easily adhere to the mold, which is inconvenient to clean. Summary of the invention

[0005] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide an insulator clay blank mold and a manufacturing process thereof.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: an insulator clay blank mold, comprising a mold and a breathable sleeve, wherein a mold cavity for placing the clay blank is arranged in the mold, the mold opening faces upward, and a plurality of exhaust holes penetrating the mold from top to bottom are arranged in the mold, the exhaust holes comprise a main exhaust hole and a plurality of secondary exhaust holes, the main exhaust hole is arranged at the center of the mold, the secondary exhaust holes are evenly distributed around the main exhaust hole, a connecting hole is arranged between the main exhaust hole and the secondary exhaust hole and the main exhaust hole is connected through the connecting hole, the bottom of the secondary exhaust hole is closed, and the breathable sleeve is arranged on the mold cavity.

[0007] Furthermore, a first stud is screwed to the bottom end of the secondary exhaust hole.

[0008] Furthermore, a circle of positioning grooves is provided at the bottom of the mold, and the positioning grooves are located below the main exhaust holes.

[0009] Furthermore, the mold cavity is a disc-shaped structure imitating a disc insulator.

[0010] Furthermore, the mold includes an upper mold and a base that are integrally connected, and the exhaust hole is arranged on the base.

[0011] Furthermore, a plurality of positioning and mounting holes are provided at the bottom of the base.

[0012] Furthermore, the connection hole extends inward from the side wall of the base to communicate with the main exhaust hole and pass through the secondary exhaust hole, and the outer end of the connection hole is screwed with a second stud.

[0013] Furthermore, a circle of extension for clamping the breathable sleeve is provided on the top of the mold.

[0014] Furthermore, the breathable sleeve is made of breathable elastic fabric.

[0015] The present invention also provides a manufacturing process of an insulator clay blank mold, comprising the following steps:

[0016] Step 1, manufacturing a mold body, a breathable sleeve, a first stud and a second stud;

[0017] Step 2, drilling the mold body from top to bottom to obtain a main exhaust hole and a secondary exhaust hole, and drilling a hole inward from the outside of the secondary exhaust hole to communicate with the main exhaust hole to obtain a connecting hole;

[0018] Step 3, tapping the bottom end of the secondary exhaust hole and the outer end of the connecting hole, screwing the first stud to the bottom end of the secondary exhaust hole, and screwing the second stud to the outer end of the connecting hole;

[0019] Step 4: Place the breathable sleeve on the mold.

[0020] Beneficial effects of the present invention: It can be seen from the above description of the present invention that, compared with the prior art, the insulator clay blank mold of the present invention includes a mold and a breathable sleeve, a mold cavity is provided in the mold, the clay blank is placed in the mold cavity, and the clay blank is formed in the mold cavity by extruding the clay blank, a plurality of exhaust holes are provided in the mold, and the exhaust holes run through the mold, when the clay blank is extruded, the air in the mold cavity is discharged through the main exhaust hole, the secondary exhaust hole, and the connecting hole, so as to avoid bubbles in the molded clay blank and ensure the performance of the insulator, the bottom of the secondary exhaust hole is closed so that all the air is discharged from the main exhaust hole, and only one air outlet is retained, so as to facilitate the external vacuum device to perform vacuuming to ensure that the air in the mold is completely exhausted, and a breathable sleeve is provided on the mold cavity to avoid the clay blank from directly contacting the inner wall of the mold and preventing the clay material from adhering to the inner wall of the mold, in addition, the breathable sleeve can avoid the clay material from blocking the exhaust hole, so as to facilitate the exhaust of the exhaust hole, and the present invention also provides a manufacturing process of the above-mentioned insulator clay blank mold, and the mold is manufactured by the manufacturing process, with simple steps, low manufacturing cost and high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic front view of an insulator clay blank mold in a preferred embodiment of the present invention;

[0022] Figure 2 It is a bottom view schematic diagram of an insulator clay blank mold in a preferred embodiment of the present invention;

[0023] Figure 3 It is a front cross-sectional view of a mold in a preferred embodiment of the present invention;

[0024] Figure numerals: 1. mold; 2. breathable sleeve; 3. exhaust hole; 4. connecting hole; 5. first stud; 6. positioning groove; 7. second stud; 8. positioning mounting hole; 9. extension; 11. upper mold; 12. base; 31. main exhaust hole; 32. secondary exhaust hole. DETAILED DESCRIPTION

[0025] The technical solutions in the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Reference Figure 1-3As shown, a preferred embodiment of the present invention is an insulator clay blank mold, comprising a mold 1 and a breathable sleeve 2, wherein the mold 1 is provided with a mold cavity for placing the clay blank, the mold 1 is opened upward, and the mold 1 is provided with a plurality of exhaust holes 3 that penetrate the mold 1 from top to bottom, the exhaust holes 3 include a main exhaust hole 31 and a plurality of secondary exhaust holes 32, the main exhaust hole 31 is provided at the center of the mold 1, the secondary exhaust holes 32 are evenly distributed around the main exhaust hole 31, a connecting hole 4 is provided between the main exhaust hole 31 and the secondary exhaust holes 32 and are connected through the connecting hole 4, the bottom of the secondary exhaust hole 32 is closed, and the breathable sleeve 2 is sleeved on the mold cavity.

[0028] The insulator clay blank mold of the present invention comprises a mold 1 and a breathable sleeve 2. A mold cavity is provided in the mold 1. The clay blank is placed in the mold cavity and is formed in the mold cavity by extruding the clay blank. A plurality of exhaust holes 3 are provided in the mold 1. The exhaust holes 3 run through the mold 1. When the clay blank is extruded, the air in the mold cavity is discharged through the main exhaust holes 31, the secondary exhaust holes 32 and the connecting holes 4, and is gathered at the outlet of the main exhaust holes 31 to avoid bubbles in the molded clay blank and ensure the performance of the insulator. The bottom of the secondary exhaust holes 32 is closed so that all the air is discharged from the main exhaust holes 31, and only one air outlet is retained to facilitate vacuuming by an external exhaust device to ensure that the air in the mold 1 is completely exhausted. In addition, a breathable sleeve 2 is provided on the mold cavity to avoid the clay blank from directly contacting the inner wall of the mold 1 and to prevent the clay material from adhering to the inner wall of the mold 1. In addition, the breathable sleeve 2 is provided to avoid the clay material from blocking the exhaust holes 3, and to facilitate the exhaust of the exhaust holes 3.

[0029] As a preferred embodiment of the present invention, it may also have the following additional technical features:

[0030] In this embodiment, the bottom end of the secondary exhaust hole 32 is screwed with a first stud 5. The first stud 5 is screwed at the bottom end of the secondary exhaust hole 32 to seal the bottom of the secondary exhaust hole 32.

[0031] In this embodiment, a circle of positioning grooves 6 are provided at the bottom of the mold 1, and the positioning grooves 6 are located below the main exhaust hole 31. The positioning grooves 6 are provided below the main exhaust hole 31 to facilitate positioning and installation when an external exhaust device is connected.

[0032] In this embodiment, the mold cavity is a disc-shaped structure of a disc insulator. The mold cavity adopts a disc-shaped structure for manufacturing a disc insulator.

[0033] In this embodiment, the mold 1 includes an upper mold 11 and a base 12 connected in one piece, and the exhaust hole 3 is arranged on the base 12. The mold 1 includes an upper mold 11 and a base 12, and the base 12 is arranged to install and fix the mold 1, and the exhaust hole 3 is arranged on the base 12 to facilitate exhausting the air.

[0034] In this embodiment, a plurality of positioning and mounting holes 8 are provided at the bottom of the base 12. The plurality of positioning and mounting holes 8 are provided at the bottom of the base 12 so as to install and fix the mold 1.

[0035] In this embodiment, the connection hole 4 extends inward from the side wall of the base 12 to communicate with the main exhaust hole 31 and pass through the secondary exhaust hole 32, and the outer end of the connection hole 4 is screwed with a second stud 7. The connection hole 4 extends inward from the side wall of the base 12 to communicate with the main exhaust hole 31 and pass through the secondary exhaust hole 32. When making the connection hole 4 of the mold 1, it is convenient to drill directly from the side wall of the base 12 inward, and the outer end of the connection hole 4 is closed by screwing the second stud 7 at the outer end of the connection hole 4.

[0036] In this embodiment, the top of the mold 1 is provided with a circle of extension 9 for clamping the breathable sleeve 2. The extension 9 is provided on the top of the mold 1 so that the breathable sleeve 2 can be clamped and installed.

[0037] In this embodiment, the breathable cover 2 is made of breathable elastic fabric. The breathable cover 2 is made of elastic breathable fabric, and the breathable cover 2 can be stretched, so it is easy to be installed on the mold 1.

[0038] The present invention also provides a manufacturing process of an insulator clay blank mold, comprising the following steps:

[0039] Step 1, manufacturing a mold body, a breathable sleeve 2, a first stud 5 and a second stud 7; specifically, the mold body can be manufactured by a casting process, but is not limited thereto;

[0040] Step 2, drilling the mold body from top to bottom to obtain a main exhaust hole 31 and a secondary exhaust hole 32, and drilling inward from the outside of the secondary exhaust hole 32 to communicate with the main exhaust hole 31 to obtain a connecting hole 4;

[0041] Step 3, tapping the bottom end of the secondary exhaust hole 32 and the outer end of the connecting hole 4, screwing the first stud 5 to the bottom end of the secondary exhaust hole 32, and screwing the second stud 7 to the outer end of the connecting hole 4;

[0042] Step 4: put the breathable cover 2 on the mold 1.

[0043] The present invention also provides a manufacturing process for the insulator clay blank mold. The mold 1 is manufactured by the manufacturing process, which has simple steps, low manufacturing cost and high production efficiency.

[0044] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0045] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A manufacturing process for an insulator clay blank mold, characterized in that: The insulator clay blank mold is manufactured by using the insulator clay blank mold, the insulator clay blank mold comprising a mold (1) and a breathable sleeve (2), the mold (1) is provided with a mold cavity for placing the clay blank, the mold (1) is opened upward, the mold (1) is provided with a plurality of exhaust holes (3) penetrating the mold (1) from top to bottom, the exhaust holes (3) comprising a main exhaust hole (31) and a plurality of secondary exhaust holes (32), the main exhaust hole (31) being arranged at the center of the mold (1), the secondary exhaust holes (32) being evenly distributed around the main exhaust hole (31), a connecting hole (4) being arranged between the main exhaust hole (31) and the secondary exhaust holes (32) being connected through the connecting hole (4), the bottom of the secondary exhaust hole (32) being closed, the breathable sleeve (2) being sleeved on the mold cavity, the bottom of the secondary exhaust hole (32) being The end of the mold (1) is screwed with a first stud (5), the bottom of the mold (1) is provided with a circle of positioning grooves (6), the positioning grooves (6) are located below the main exhaust hole (31), the mold cavity is a disc-shaped structure imitating a disc insulator, the mold (1) comprises an upper mold (11) and a base (12) connected in one piece, the exhaust hole (3) is arranged on the base (12), the bottom of the base (12) is provided with a plurality of positioning and mounting holes (8), the connecting hole (4) extends inward from the side wall of the base (12) to communicate with the main exhaust hole (31) and pass through the secondary exhaust hole (32), the outer end of the connecting hole (4) is screwed with a second stud (7), the top of the mold (1) is provided with a circle of extensions (9) for clamping the breathable sleeve (2), and the breathable sleeve (2) is made of breathable elastic fabric; The production steps include: Step 1, manufacturing a mold body, a breathable sleeve (2), a first stud (5) and a second stud (7); Step 2, drilling holes in the mold body from top to bottom to obtain a main exhaust hole (31) and a secondary exhaust hole (32), and drilling holes inward from the outside of the secondary exhaust hole (32) until the secondary exhaust hole (32) is connected to the main exhaust hole (31), thereby obtaining a connecting hole (4); Step 3, tapping the bottom end of the secondary exhaust hole (32) and the outer end of the connecting hole (4), screwing the first stud (5) to the bottom end of the secondary exhaust hole (32), and screwing the second stud (7) to the outer end of the connecting hole (4); Step 4: Put the breathable sleeve (2) on the mold (1).

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