Sealing gasket die special for rear sealing of submersible cable vulcanization production line

Abstract

The utility model relates to the field of special dies, and discloses a sealing gasket die special for rear sealing of a submersible cable vulcanization production line, which comprises a rear sealing gasket base body, a rear sealing gasket upper cover body and a rear sealing gasket through hole core. A hollow inverted small circular truncated cone, a hollow inverted middle circular truncated cone, a hollow cylinder and a hollow inverted large circular truncated cone extend upwards and outwards from the bottom of the center of the rear sealing gasket base body in sequence, and flow guide grooves are formed in the annular bottom face of the hollow cylinder and the annular bottom face of the hollow inverted large circular truncated cone; the lower end face of the rear sealing gasket upper cover body extends upwards and outwards from the center to form an inverted middle circular truncated cone and an inverted large circular truncated cone in sequence. The rear sealing gasket through hole core comprises a small cylinder and an inverted small circular truncated cone connected to the lower portion of the small cylinder. By reasonably designing the die, the sealing gasket can be manufactured automatically, the production requirement is met, and the production efficiency is improved; the sealing gasket is good in quality, and purchase funds are effectively saved; the raw material rubber uses leftovers of a production line and turns waste into wealth.

Description

Technical Field

[0001] The utility model relates to the field of special molds, and particularly relates to a special gasket mold for the rear seal of a submersible cable vulcanization production line. Background Art

[0002] At present, the gaskets used for the rear seal of the submersible cable vulcanization production line are accessories supporting imported equipment, and the quantity is limited, only a few; because they are rubber products, they have a certain service life; it is expensive to contact the manufacturer to purchase, and the price of a single gasket often reaches several thousand yuan, and the use of the production line is affected due to the long arrival cycle. There are various specifications of the submersible cables produced by the company, so there are also various aperture sizes of the rear gaskets of the vulcanization production line; while there is only one specification for the imported equipment supporting, which far cannot meet the actual needs in the production of submersible cables. In addition, since this kind of gasket is a kind of conical body and belongs to a special-shaped part, it is difficult to manufacture. Therefore, how to make a suitable special mold by ourselves in the face of difficulties according to the production demand situation is a technical problem to be solved urgently. Content of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides a special gasket mold for the rear seal of a submersible cable vulcanization production line, and its technical solution is as follows:

[0004] A special gasket mold for the rear seal of a submersible cable vulcanization production line, which comprises a rear gasket base body, a rear gasket upper cover body and a rear gasket through-hole core; the appearance of the rear gasket base body is cylindrical, and the internal cavity is provided with geometric bodies with the same axis line relying on the body. The geometric bodies extend upward and outward from the central bottom in sequence as a hollow inverted small round table, a hollow inverted medium round table, a hollow cylinder and a hollow inverted large round table. The hollow cylinder is provided with a first annular bottom surface, the inner circle of the first annular bottom surface coincides with the top circle of the hollow inverted small round table, the hollow inverted large round table is provided with a second annular bottom surface, and the inner circle of the second annular bottom surface coincides with the top circle of the hollow cylinder; the appearance of the rear gasket upper cover body is cylindrical and matches the rear gasket base body up and down. The lower end surface of the rear gasket upper cover body extends upward and outward from the center in sequence as an inverted medium round table and an inverted large round table with the same axis line. The horizontal inclination of the side surface of the inverted medium round table is the same as that of the side surface of the hollow inverted medium round table, the horizontal inclination of the side surface of the inverted large round table is the same as that of the side surface of the hollow inverted large round table, and the height of the inverted large round table is the same as that of the hollow inverted large round table; the rear gasket through-hole core comprises a small cylinder with the same axis line and an inverted small round table connected below it. The horizontal inclination of the side surface of the inverted small round table is the same as that of the side surface of the hollow inverted small round table, and the height of the inverted small round table is the same as that of the hollow inverted small round table. When the rear gasket upper cover body is buckled on the rear gasket base body, the top surface of the small cylinder is tightly attached to the bottom surface of the inverted medium round table.

[0005] Further, a circular first diversion groove is provided on the first annular bottom surface, and the rear gasket base body is provided with first radial small through holes that penetrate outward from the first diversion groove as the starting point.

[0006] Further, a circular second diversion groove is provided on the second annular bottom surface, and the rear gasket base body is provided with second radial small through holes that penetrate outward from the second diversion groove as the starting point.

[0007] Further, the number of the first radial small through holes is two and they are symmetrical.

[0008] Further, the number of the second radial small through holes is two and they are symmetrical.

[0009] Further, the outer edge of the top surface of the rear gasket base body is provided with an annular notch.

[0010] Further, a semi-circular groove is provided on the bottom surface of the inverted small round table of the rear gasket through hole core.

[0011] The beneficial technical effects of the present utility model are mainly as follows:

[0012] 1. By reasonably designing the mold, the present utility model makes it suitable for gasket pressing, and self-produces gaskets for use in the rear seal of vulcanization production lines with different aperture sizes, fully meeting the production needs and greatly improving the production efficiency.

[0013] 2. The produced gaskets are of good quality, effectively saving the purchase funds and having good economic benefits.

[0014] 3. The raw rubber used to make the gaskets is the waste material of the production line. While reducing waste and turning waste into treasure, it also greatly reduces the production cost. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the rear gasket base;

[0016] Figure 2 It is a schematic structural diagram of the upper cover of the rear gasket;

[0017] Figure 3 It is a schematic structural diagram of various specifications of the rear gasket through hole core;

[0018] Figure 4 It is a schematic diagram of the gasket mold combination;

[0019] In the figure: 1 - Rear gasket base body, 2 - Hollow inverted small round table, 3 - Hollow inverted medium round table, 4 - First diversion groove, 5 - Second diversion groove, 6 - Annular notch, 7 - First annular bottom surface, 8 - Hollow cylinder, 9 - Second annular bottom surface, 10 - Hollow inverted large round table, 11 - Rear gasket upper cover body, 12 - Inverted large round table, 13 - Inverted medium round table, 14 - Small cylinder, 15 - Inverted small round table, 16 - Semi-circular groove, 17 - Rear gasket through-hole core. Specific implementation mode

[0020] The following combines the embodiments and the drawings to describe the present utility model in detail. Embodiment 1

[0021] See Figures 1 to 4 . A special sealing gasket mold for the rear seal of a submersible cable vulcanization production line, which includes a rear gasket base body 1, a rear gasket upper cover body 11 and a rear gasket through-hole core 17; the appearance of the rear gasket base body 1 is cylindrical, and the internal cavity is provided with geometric bodies having the same axis line relying on the body. The geometric bodies extend upward and outward from the central bottom in sequence as a hollow inverted small round table 2, a hollow inverted medium round table 3, a hollow cylinder 8 and a hollow inverted large round table 10. The hollow cylinder 8 is provided with a first annular bottom surface 7, and the inner circle of the first annular bottom surface 7 coincides with the top circle of the hollow inverted small round table 2. The hollow inverted large round table 10 is provided with a second annular bottom surface 9, and the inner circle of the second annular bottom surface 9 coincides with the top circle of the hollow cylinder 8; the appearance of the rear gasket upper cover body 11 is cylindrical and matches the rear gasket base body 1 up and down. The lower end surface of the rear gasket upper cover body 11 extends upward and outward from the center in sequence as an inverted medium round table 13 and an inverted large round table 12 having the same axis line. The horizontal inclination of the side surface of the inverted medium round table 13 is the same as the horizontal inclination of the side surface of the hollow inverted medium round table 3. The horizontal inclination of the side surface of the inverted large round table 12 is the same as the horizontal inclination of the side surface of the hollow inverted large round table 10 and the height of the inverted large round table 12 is the same as the height of the hollow inverted large round table 10; the rear gasket through-hole core 17 includes a small cylinder 14 having the same axis line and an inverted small round table 15 connected below it. The horizontal inclination of the side surface of the inverted small round table 15 is the same as the horizontal inclination of the side surface of the hollow inverted small round table 2 and the height of the inverted small round table 15 is the same as the height of the hollow inverted small round table 2. When the rear gasket upper cover body 11 is buckled on the rear gasket base body 1, the top surface of the small cylinder 14 is tightly attached to the bottom surface of the inverted medium round table 13. Embodiment 2

[0022] See Figures 1 to 4。A special gasket mold for the rear seal of a submersible cable vulcanization production line. On the basis of the technical solution described in Embodiment 1, a ring-shaped first diversion groove 4 is provided on the first annular bottom surface 7, and the rear gasket base body 1 is provided with a first radial small through hole (not shown in the figure) that penetrates outward from the first diversion groove 4; a ring-shaped second diversion groove 5 is provided on the second annular bottom surface 9, and the rear gasket base body 1 is provided with a second radial small through hole (not shown in the figure) that penetrates outward from the second diversion groove 5; the first radial small through holes are provided in two and are symmetrical; the second radial small through holes are provided in two and are symmetrical. Since appropriate diversion grooves are provided at appropriate positions on the rear gasket base body 1, the excess rubber compound and air are discharged outside the mold, ensuring that there are no defects such as air bubbles in the gasket finished product. Embodiment 3

[0023] See Figures 1 to 4 。A special gasket mold for the rear seal of a submersible cable vulcanization production line. On the basis of the technical solution described in Embodiment 1, the outer edge of the top surface of the rear gasket base body 1 is provided as a ring-shaped notch 6; a semi-circular groove 16 is provided on the bottom surface of the inverted small round table 15 of the rear gasket through hole core 17. The functions of providing the ring-shaped notch 6 and the semi-circular groove 16 are to facilitate the operation when removing the mold.

[0024] The basic working principle of the present utility model is as follows:

[0025] In the design of the mold of the present utility model, the joint surface of the rear gasket base body 1 and the rear gasket upper cover body 11 is provided as a large conical surface, which can perform self-positioning when combined downward, protecting the mold and increasing the accuracy; four rear gasket through hole cores 17 are made according to several common sizes in the workshop, and the hole diameters are 10mm, 12mm, 28mm, 30mm, and 34mm respectively, and are replaced according to different needs during pressing. In this way, both the requirements of the through hole and the size are ensured, and the quality of the through hole, uniform stress, and durability are also ensured. During the process of pressing the gasket using the mold, the usual supporting equipment is mainly a flat vulcanizing machine. When the flat vulcanizing machine works, the hot plate heats up the rubber compound and causes the rubber molecules to crosslink, changing from a linear structure to a network-like three-dimensional structure, and a product with certain physical and mechanical properties can be obtained. However, the rubber compound begins to soften after being heated, and at the same time, the moisture in the rubber compound is extremely volatile. At this time, sufficient pressure is applied by the hydraulic cylinder to make the rubber compound full and limit the generation of air bubbles, making the tissue structure of the product dense. The appropriate pressing temperature, time, and pressure ratio can be selected through experiments to achieve the optimal performance. After the gasket is pressed, it will adhere to the mold to a certain extent and is not easy to take out. If it is taken out forcefully, it will damage both the mold and the gasket, so silicone oil needs to be used to prevent it; if the amount used is small, it will not work, but if too much is used, it will penetrate into the rubber compound and affect the performance. The most suitable amount can be found through experiments.

Claims

1. A special gasket mold for the rear seal of a submersible cable vulcanization production line, characterized in that, It includes a rear gasket base body, a rear gasket upper cover body and a rear gasket through-hole core; the appearance of the rear gasket base body is cylindrical, and the internal cavity is provided with geometric bodies with the same axis line relying on the body. The geometric bodies extend upward and outward from the central bottom in sequence as a hollow inverted small frustum, a hollow inverted medium frustum, a hollow cylinder and a hollow inverted large frustum. The hollow cylinder is provided with a first annular bottom surface, the inner circle of the first annular bottom surface coincides with the top circle of the hollow inverted small frustum, the hollow inverted large frustum is provided with a second annular bottom surface, and the inner circle of the second annular bottom surface coincides with the top circle of the hollow cylinder; the appearance of the rear gasket upper cover body is cylindrical and matches the rear gasket base body up and down. The lower end surface of the rear gasket upper cover body extends upward and outward from the center in sequence as an inverted medium frustum and an inverted large frustum with the same axis line. The horizontal inclination of the side surface of the inverted medium frustum is the same as that of the side surface of the hollow inverted medium frustum, the horizontal inclination of the side surface of the inverted large frustum is the same as that of the side surface of the hollow inverted large frustum and the height of the inverted large frustum is the same as the height of the hollow inverted large frustum; the rear gasket through-hole core includes a small cylinder with the same axis line and an inverted small frustum connected below it. The horizontal inclination of the side surface of the inverted small frustum is the same as that of the side surface of the hollow inverted small frustum and the height of the inverted small frustum is the same as the height of the hollow inverted small frustum. When the rear gasket upper cover body is buckled on the rear gasket base body, the top surface of the small cylinder is close to the bottom surface of the inverted medium frustum.

2. The special gasket mold for the rear seal of a submersible cable vulcanization production line according to claim 1, characterized in that, An annular first diversion groove is provided on the first annular bottom surface, and the rear gasket base body is provided with a first radial small through-hole that penetrates outward starting from the first diversion groove.

3. The special gasket mold for the rear seal of a submersible cable vulcanization production line according to claim 1, characterized in that, An annular second diversion groove is provided on the second annular bottom surface, and the rear gasket base body is provided with a second radial small through-hole that penetrates outward starting from the second diversion groove.

4. A special gasket mold for post-sealing of a submersible cable vulcanization production line according to claim 2, characterized in that, The first radial small through-hole is provided with two and is symmetric.

5. A special gasket mold for post-sealing of a submersible cable vulcanization production line according to claim 3, characterized in that, The second radial small through-hole is provided with two and is symmetric.

6. The special gasket mold for post-sealing of a submersible cable vulcanization production line according to claim 1, characterized in that, The outer edge of the top surface of the rear gasket base body is provided as an annular notch.

7. A special gasket mold for the rear seal of a submersible cable vulcanization production line according to claim 1, characterized in that A semi-circular groove is provided on the bottom surface of the inverted small frustum of the rear gasket through-hole core.

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