CN217196446U

CN217196446U - Forming die for sealing rubber pad

Info

Publication number: CN217196446U
Application number: CN202123352392.2U
Authority: CN
Inventors: 郭明杨; 钟代全; 冯印; 张榆杨
Original assignee: Chengdu Tuoke Sealing Member Co ltd
Current assignee: Chengdu Tuoke Sealing Member Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-08-16
Anticipated expiration: 2031-12-29

Abstract

The application provides a sealing rubber pad forming die, from top to bottom includes rubber injection plate, last mould and lower mould in proper order. The bottom surface of the upper die is provided with a forming groove with the same outline as the rubber pad, the periphery of the forming groove is communicated with a plurality of transverse glue channels, the upper parts of the transverse glue channels are communicated with longitudinal glue channels, the top surface of the upper die is provided with an annular groove, the longitudinal glue channels are all communicated with the bottom surface of the annular groove, an exhaust passage is arranged between every two adjacent transverse glue channels, one end of each exhaust passage is communicated with the forming groove and used for exhausting air and redundant glue in the forming groove; the bottom of the glue injection plate is provided with an annular flange with an annular structure, the annular flange is embedded in the annular groove, and solid rubber raw materials are prevented between the bottom surface of the annular flange and the bottom surface of the annular groove; the top surface of the lower die is provided with a positioning pin for mounting the electrode plate. The rubber can be directly melted and formed on the electrode plate, so that the rubber pad has higher sealing effect.

Description

Forming die for sealing rubber pad

Technical Field

The utility model belongs to the technical field of the rubber pad manufacturing, especially, relate to a sealing rubber pad forming die.

Background

The electrode plate of the hydrogen energy battery usually adopts a separate sealing gasket for sealing, but the sealing gasket is not easy to arrange and lay on the electrode plate, the bonding efficiency is low, and the mounting position precision of the sealing gasket is low, thus easily causing sealing failure.

SUMMERY OF THE UTILITY MODEL

For solving prior art not enough, the utility model provides a sealing rubber pad forming die can directly melt the shaping with rubber on the plate electrode, has higher production efficiency, makes sealing rubber pad have better sealed effect simultaneously.

In order to realize the purpose of the utility model, the following scheme is proposed:

a sealing rubber pad forming die sequentially comprises a rubber injection plate, an upper die and a lower die from top to bottom.

The bottom surface of the upper die is provided with a forming groove with the same outline as the rubber pad, the periphery of the forming groove is communicated with a plurality of transverse glue channels, the upper parts of the transverse glue channels are communicated with longitudinal glue channels, the top surface of the upper die is provided with an annular groove, the longitudinal glue channels are all communicated with the bottom surface of the annular groove, an exhaust passage is arranged between every two adjacent transverse glue channels, one end of each exhaust passage is communicated with the forming groove and used for exhausting air and redundant glue in the forming groove;

the bottom of the glue injection plate is provided with an annular flange with an annular structure, the annular flange is embedded in the annular groove, and solid rubber raw materials are placed between the bottom surface of the annular flange and the bottom surface of the annular groove;

the top surface of the lower die is provided with a positioning pin for mounting the electrode plate.

Furthermore, an exhaust groove with an annular structure is formed in the outer side, located on the forming groove, of the upper die, and the other end of the exhaust channel is communicated with the exhaust groove.

Furthermore, the height dimension of the transverse glue channel is smaller than that of the forming groove.

Furthermore, the upper section of the longitudinal rubber channel is in a conical structure.

Furthermore, the bottom surface of the annular flange is provided with a groove along the annular track.

Furthermore, the part of the transverse rubber channel communicated with the longitudinal rubber channel is in a cylindrical hole structure.

The beneficial effects of the utility model reside in that: the rubber material can be directly molded on the electrode plate by using the molding die to form the sealing rubber pad; the adhesive is not needed to be bonded independently, so that the production efficiency is higher; the precision of the forming position between the sealing rubber pad and the electrode plate is higher, and the sealing effect can be improved; and meanwhile, the top surface of the sealing rubber pad formed by the forming groove is flat, so that the sealing effect can be further improved.

Drawings

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

Fig. 1 shows a schematic structural diagram of an embodiment of an electrode plate and a sealing rubber gasket.

Fig. 2 shows an overall configuration diagram of the present application.

Fig. 3 shows a bottom view of the upper die.

Fig. 4 shows an enlarged view at a in fig. 3.

Fig. 5 shows a cross-sectional view of the present application.

Fig. 6 shows an enlarged view at B in fig. 5.

Fig. 7 shows an enlarged view at C in fig. 5.

The labels in the figure are: the device comprises a glue injection plate-1, an annular flange-11, a groove-12, an upper die-2, a forming groove-21, a transverse glue channel-22, a longitudinal glue channel-23, an annular groove-24, an exhaust channel-25, an exhaust groove-26 and a lower die-3.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are some embodiments of the present invention, not all embodiments.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

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 the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and this is only for the convenience of description of the present invention and simplification of the description. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 2 to 7, a mold for molding a gasket includes, from top to bottom, a rubber injection plate 1, an upper mold 2, and a lower mold 3.

Specifically, the bottom surface of the upper die 2 is provided with a forming groove 21 having the same profile as the rubber gasket for forming a sealing rubber gasket body, so as to ensure the accuracy of the profile of the rubber gasket and the position between the rubber gasket and the electrode plate. The peripheral side of the forming groove 21 is communicated with a plurality of transverse glue channels 22, a longitudinal glue channel 23 is communicated above the transverse glue channels 22, the top surface of the upper die 2 is provided with an annular groove 24, and the longitudinal glue channels 23 are all communicated with the bottom surface of the annular groove 24. An exhaust passage 25 is arranged between every two adjacent transverse rubber passages 22, one end of each exhaust passage 25 is communicated with the forming groove 21 and used for exhausting air and redundant rubber liquid in the forming groove 21, so that bubbles in the formed rubber pad are prevented, and local rubber leakage caused by too large pressure when the rubber liquid is too much is avoided;

specifically, the bottom of the glue injection plate 1 is provided with an annular flange 11 with an annular structure, the annular flange 11 is embedded in an annular groove 24, and a solid rubber raw material is placed between the bottom surface of the annular flange 11 and the bottom surface of the annular groove 24;

specifically, the top surface of the lower die 3 is provided with a positioning pin for mounting the electrode plate.

When the electrode plate is used, solid rubber raw materials are placed in the annular groove 24, the annular flange 11 is installed in the annular groove 24, the rubber is distributed in the annular groove 24, the electrode plate shown in figure 1 is installed on the top surface of the lower die 3, and the electrode plate is positioned by the positioning pins to prevent the electrode plate from moving. And then integrally heating the die, and enabling the rubber material to be in a viscoelastic state by utilizing the temperature of the die. By moving the glue injection plate 1 downwards, the glue solution is sent into the forming groove 21 through the longitudinal glue channel 23 and the transverse glue channel 22, and the original air in the forming groove 21 is exhausted from the exhaust channel 25. When the bottom surface of the annular flange 11 contacts the bottom surface of the annular groove 24, the glue-injection plate 1 stops moving downwards. And then cooling the mold, and vulcanizing and molding the rubber in the mold. A sealing rubber pad as shown in fig. 1 may be formed on the electrode plate. The bottom surface of the forming groove 21 is used for forming the top surface of the rubber pad, so that the top surface of the rubber pad is smoother, and the sealing effect is improved.

The electrode plate can be coated with adhesive along the track of the rubber gasket by using gluing equipment before the fluidized forming of the sealing gasket so as to improve the connection stability between the sealing rubber gasket and the electrode plate.

Preferably, as shown in fig. 3 and 4, the upper mold 2 is provided with an exhaust groove 26 having an annular structure on the outer side of the molding groove 21, the other end of the exhaust passage 25 is communicated with the exhaust groove 26, and air or glue discharged from the periphery of the molding groove 21 is discharged into the exhaust groove 26 through the exhaust passage 25 and is discharged in a concentrated manner.

Preferably, as shown in fig. 7, the height dimension of the transverse rubber channel 22 is smaller than the height dimension of the forming groove 21, so that the top surface of the rubber in the transverse rubber channel 22 is lower than the top surface of the product in the forming groove 21 after pouring, and the sealing effect is not affected.

Preferably, as shown in fig. 7, the upper section of the longitudinal glue channel 23 is a conical structure, which facilitates the downward flow of the glue solution, and increases the pressure of the lower section of the longitudinal glue channel 23, so that the glue solution can be smoothly pressed into the forming groove 21.

Preferably, as shown in fig. 6, the bottom surface of the annular flange 11 is provided with a groove 12 along an annular track, after the rubber pad is cured and molded, the glue solution remaining in the annular groove 24 is molded into a solid state, the groove 12 is used to mold a convex strip structure on the top of the solid glue remaining in the annular groove 24, and the convex strip structure is used to facilitate taking out the remaining glue remaining in the annular groove 24.

Preferably, as shown in fig. 4, the portion where the transverse glue channel 22 is communicated with the longitudinal glue channel 23 is in a cylindrical hole structure, and the cylindrical hole is used to slow down the impact force when the glue solution is injected into the forming groove 21, reduce the fluctuation of the glue solution, make the flow of the glue solution smoother, and avoid the occurrence of bubbles or local glue break.

The foregoing is only a preferred embodiment of the invention and is not intended to be the only or limiting embodiment of the invention. It should be understood by those skilled in the art that various changes and equivalent substitutions made herein may be made without departing from the scope of the invention as defined by the appended claims.

Claims

1. A sealing rubber pad forming die is characterized by comprising a rubber injection plate (1), an upper die (2) and a lower die (3) from top to bottom in sequence;

the bottom surface of the upper die (2) is provided with a forming groove (21) with the same outline as the rubber pad, the periphery of the forming groove (21) is communicated with a plurality of transverse rubber channels (22), the upper part of each transverse rubber channel (22) is communicated with a longitudinal rubber channel (23), the top surface of the upper die (2) is provided with an annular groove (24), the longitudinal rubber channels (23) are all communicated with the bottom surface of the annular groove (24), an exhaust passage (25) is arranged between every two adjacent transverse rubber channels (22), one end of each exhaust passage (25) is communicated with the forming groove (21) and used for exhausting air and redundant rubber liquid in the forming groove (21);

the bottom of the rubber injection plate (1) is provided with an annular flange (11) with an annular structure, the annular flange (11) is embedded in the annular groove (24), and solid rubber raw materials are placed between the bottom surface of the annular flange (11) and the bottom surface of the annular groove (24);

the top surface of the lower die (3) is provided with a positioning pin for mounting the electrode plate.

2. A mold for molding a gasket rubber according to claim 1, wherein the upper mold (2) is provided with an exhaust groove (26) of an annular structure at the outer side of the molding groove (21), and the other end of the exhaust passage (25) is communicated with the exhaust groove (26).

3. A rubber gasket molding die of claim 1, wherein the height dimension of the transverse rubber path (22) is smaller than the height dimension of the molding groove (21).

4. A rubber gasket forming mold as claimed in claim 1, wherein the upper section of the longitudinal rubber path (23) is of a conical structure.

5. A sealing rubber pad forming die as claimed in claim 1, wherein the bottom surface of the annular flange (11) is provided with a groove (12) along the circular path.

6. The mold for molding sealing rubber gasket of claim 1, wherein the connection between the transverse rubber channel (22) and the longitudinal rubber channel (23) is cylindrical.