CN213245445U

CN213245445U - Air tightness testing machine for rubber film product

Info

Publication number: CN213245445U
Application number: CN202022737275.7U
Authority: CN
Inventors: 赖锦柱
Original assignee: Pan Stone Anhui Hydraulic Industries Co ltd
Current assignee: Pan Stone Anhui Hydraulic Industries Co ltd
Priority date: 2020-11-21
Filing date: 2020-11-21
Publication date: 2021-05-21
Anticipated expiration: 2030-11-21

Abstract

The utility model discloses an air tightness testing machine for rubber film products, which comprises a frame, wherein an operation cavity is arranged above the frame, a plurality of guide mechanisms are arranged on the bottom of the operation cavity, and a fixed table is arranged on each guide mechanism and can move back and forth along the guide mechanisms; the rubber film product fixing device is characterized in that a mold is fixed on the fixing table and comprises an upper mold and a lower mold, an upper mold cavity is formed below the upper mold, a lower mold cavity is formed above the lower mold, a stepped cavity is formed at the top of the lower mold cavity so as to be capable of accommodating a rubber film product, an air exhaust cavity is formed below the stepped cavity, an air exhaust pipe is communicated with the air exhaust cavity, and a pressure sensor is arranged in the upper mold cavity. The air tightness testing machine for the rubber membrane product has the characteristics of simplicity and convenience in operation and high sensitivity.

Description

Air tightness testing machine for rubber film product

Technical Field

The utility model relates to a rubber product detection area specifically, relates to an air tightness test machine of rubber membrane goods.

Background

A rubber film product, namely a film-shaped rubber product; such products need to be tested for gas tightness after production as long as they function as seals. In the rubber molding process, air holes are generated, but the air holes are very fine and are difficult to observe by naked eyes, so that the air tightness inspection is challenged.

At present, although some devices for detecting the air tightness of rubber products are also available on the market, the devices generally have the defects of inconvenient operation or poor detection sensitivity, so that the detection efficiency and effect are greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an air tightness test machine of rubber membrane product, this air tightness test machine of rubber membrane product have easy and simple to handle and the high characteristics of sensitivity.

In order to achieve the purpose, the utility model provides an air tightness testing machine for rubber film products, which comprises a frame, wherein an operation cavity is arranged above the frame, a plurality of guide mechanisms are arranged on the bottom of the operation cavity, a fixed table is arranged on each guide mechanism, and the fixed table can move back and forth along the guide mechanisms;

the rubber film product fixing device is characterized in that a mold is fixed on the fixing table and comprises an upper mold and a lower mold, an upper mold cavity is formed below the upper mold, a lower mold cavity is formed above the lower mold, a stepped cavity is formed at the top of the lower mold cavity so as to be capable of accommodating a rubber film product, an air exhaust cavity is formed below the stepped cavity, an air exhaust pipe is communicated with the air exhaust cavity, and a pressure sensor is arranged in the upper mold cavity.

Preferably, the fixing table is provided with a plurality of fixing holes, and a protrusion is formed at the bottom of the lower die and can be fixed in the fixing holes.

Preferably, the top of the upper die is provided with an annular ring, and the annular ring can press the rubber film product.

Preferably, a first driving mechanism is connected to the rear end of the fixed table, and the first driving mechanism drives the fixed table to move back and forth along the guide mechanism.

Preferably, the guide mechanism comprises a guide rail and a crawler, the fixed table is clamped on the guide rail, and the end of the fixed table is provided with the crawler.

Preferably, a display is arranged on the top cover of the operation cavity, and the display is electrically connected with the pressure sensor so as to be capable of displaying pressure data in the upper die cavity.

Preferably, two fixing tables are arranged in the operation cavity, and the fixing tables are respectively matched with a first supporting column and a second supporting column; a first pressing plate and a second pressing plate are respectively fixed on the first supporting column and the second supporting column; the first pressing plate and the second pressing plate are connected with a second driving mechanism so as to drive the first pressing plate and the second pressing plate to reciprocate in the vertical direction; the first pressing plate and the second pressing plate can be abutted against the top of the upper die.

Preferably, the first driving mechanism is an air pump or a hydraulic pump.

Preferably, the second driving mechanisms are each independently an air pump or a hydraulic pump.

Preferably, the display is a liquid crystal display.

In the technical solution, the utility model provides an air tightness test machine of rubber membrane article's specific operation is as follows: firstly, an operator places a rubber film product in a stepped concave cavity of a lower die, and then covers an upper die above the lower die, so that the rubber film product is placed between the upper die and the lower die; fixing the mold on a fixed table, starting an air pump to pump air from an air exhaust pipe, and if no air hole is formed in the rubber film product, normally preventing the air pressure in the upper mold cavity from being reduced; if the rubber film product is provided with the air holes, the air pressure in the upper die cavity is reduced, and an operator can judge that the rubber film product is provided with the holes through the reduction of the air pressure and judge that the air tightness is poor. Therefore, the air tightness testing machine of the rubber membrane product has the characteristics of simple and convenient operation and high sensitivity.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a preferred embodiment of an air tightness testing machine for rubber film products provided by the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a schematic structural diagram of a preferred embodiment of the mold provided by the present invention;

fig. 4 is an enlarged view of a portion a of fig. 1.

Description of the reference numerals

1. Operation chamber 2, fixed station

3. Guide mechanism 4, fixed orifices

5. Top cover 6 and display

7. A first support column 8 and a second support column

9. Second pressing plate 10, first pressing plate

11. Second driving mechanism 12 and upper die

13. Upper die cavity 14 and lower die

15. Air extraction cavity 16 and step-shaped concave cavity

17. Annular ring 18, exhaust tube

19. Pressure sensor 20, first drive mechanism

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, the terms "upper, lower, top, bottom" and the like are included in the terms in an orientation that represents only an orientation of the term in a conventional use state or a colloquial meaning understood by those skilled in the art, and should not be construed as limiting the term.

The utility model provides an air tightness testing machine for rubber membrane products, as shown in figures 1-3, the air tightness testing machine for rubber membrane products comprises a frame, an operation cavity 1 is arranged above the frame, a plurality of guide mechanisms 3 are arranged on the bottom of the operation cavity 1, a fixed table 2 is arranged on the guide mechanisms 3, and the fixed table 2 can move back and forth along the guide mechanisms 3;

be fixed with the mould on the fixed station 2, the mould includes upper die 12 and bed die 14, the below of upper die 12 is formed with mould chamber 13, the top of bed die 14 is formed with down the die cavity, the top of die cavity is formed with stepped cavity 16 down in order to settle rubber membrane goods, the below of stepped cavity 16 is formed with aspirating chamber 15 (stepped cavity 16, form with the through-hole between the aspirating chamber 15 and carry out the intercommunication), the intercommunication of aspirating chamber 15 has exhaust tube 18 (aspirating tube 18 is connected with the air pump), it is provided with pressure sensor 19 (pressure sensor 19 is connected with pressure display structure, like the manometer) to go up the die cavity 13.

The air tightness test machine of the rubber film product has the following specific operations: first, the operator places the rubber film product in the stepped cavity 16 of the lower mold 14, and then covers the upper mold 12 above the lower mold 14, so that the rubber film product is placed between the upper mold 12 and the lower mold 14; fixing the mould on the fixed table 2, starting an air pump to pump air from the air pumping pipe 18, and if no air hole exists in the rubber film product, the air pressure in the upper mould cavity 13 is normally not reduced; if the rubber film product has air holes, the air pressure in the upper mold cavity 13 is reduced, and an operator can judge that the rubber film product has holes through the reduction of the air pressure, and judge that the air tightness is poor. Therefore, the air tightness testing machine of the rubber membrane product has the characteristics of simple and convenient operation and high sensitivity.

In addition, the guide mechanism 3 in the utility model can facilitate the position adjustment of the fixed platform 2, when the mould needs to be placed and taken, the fixed platform 2 only needs to be extended to the outside of the operation cavity 1 along the guide mechanism 3, thereby facilitating the operation of personnel; when the air tightness needs to be detected, only the fixing table 2 needs to be arranged in the operation cavity 1, so that the operation safety and stability are improved.

In the above embodiment, the fixing manner of the mold on the fixing table 2 may be selected in a wide range, but in order to further improve the convenience of fixing, it is preferable that a plurality of fixing holes 4 are provided on the fixing table 2, and a protrusion is formed on the bottom of the lower mold 14, which can be fitted into the fixing hole 4. In the presence of a plurality of fixing holes 4, the operator can adjust the position of the mold on the fixing table 2 according to specific needs, thereby further improving the practicality thereof.

In the above embodiment, in order to completely isolate the upper mold cavity 13 from the lower mold cavity, it is preferable that the top of the upper mold 12 is provided with an annular ring 17, and the annular ring 17 can press the rubber film product. The annular ring 17 can completely press the edge of the rubber film product, so that the upper die cavity 13 and the lower die cavity can be completely isolated, and the detection of air tightness is facilitated.

The utility model discloses in, what fixed station 2 can be manual movement, also can be automatic movement, in order to realize automatic removal, preferably, the rear end setting of fixed station 2 is connected with first actuating mechanism 20, first actuating mechanism 20 drive fixed station 2 along guiding mechanism 3 seesaw. That is, the reciprocating driving of the fixed table 2 can be achieved only by activating the first driving mechanism 20.

In the present invention, the specific structure of the guide mechanism 3 can be selected within a wide range, but in order to further improve the stability of the movement of the fixed table 2, preferably, as shown in fig. 4, the guide mechanism 3 includes a guide rail and a crawler belt, the fixed table 2 is clamped on the guide rail, and the end portion of the fixed table 2 is provided with the crawler belt.

In the present invention, in order to enable the operator to observe the detection result more conveniently, preferably, a display 6 is provided on the top cover 5 of the operation cavity 1, the display 6 is electrically connected to the pressure sensor 19 so as to display the pressure data in the upper mold cavity 13.

In the present invention, in order to avoid the occurrence of movement between the upper mold 12 and the lower mold 14 during the detection process, preferably, two fixed tables 2 are disposed in the operation chamber 1, and the fixed tables 2 are respectively matched with the first supporting column 7 and the second supporting column 8; a first pressing plate 10 and a second pressing plate 9 are respectively fixed on the first supporting column 7 and the second supporting column 8; the first pressing plate 10 and the second pressing plate 9 are both connected with a second driving mechanism 11 so as to be capable of driving the first pressing plate 10 and the second pressing plate 9 to reciprocate in the vertical direction; the first and

second platens

10, 9 are each capable of pressing against the top of the upper mold 12. After the mold is placed on the stationary table 2, the second drive mechanism 11 is activated so that the first and

second platens

10, 9 apply pressure to the top of the upper mold 12, thereby preventing separation therebetween.

In the present invention, the specific structure of the first driving mechanism 20 can be selected within a wide range, but in order to further improve the convenience of operation, it is preferable that the first driving mechanism 20 is an air pump or a hydraulic pump.

In the present invention, the specific structure of the second driving mechanism 11 can be selected within a wide range, but in order to further improve the convenience of operation, it is preferable that the second driving mechanisms 11 are each independently an air pump or a hydraulic pump.

Further, in the present invention, the specific structure of the display 6 can be selected in a wide range, but in order to improve the display effect, it is preferable that the display 6 is a liquid crystal display.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. The air tightness testing machine for the rubber film product is characterized by comprising a frame, wherein an operation cavity (1) is arranged above the frame, a plurality of guide mechanisms (3) are arranged at the bottom of the operation cavity (1), a fixed table (2) is arranged on each guide mechanism (3), and the fixed table (2) can move back and forth along the guide mechanisms (3);

the rubber film forming die is characterized in that a die is fixed on the fixed table (2), the die comprises an upper die (12) and a lower die (14), an upper die cavity (13) is formed below the upper die (12), a lower die cavity is formed above the lower die (14), a stepped cavity (16) is formed at the top of the lower die cavity to enable a rubber film product to be placed, an air exhaust cavity (15) is formed below the stepped cavity (16), the air exhaust cavity (15) is communicated with an air exhaust pipe (18), and a pressure sensor (19) is arranged in the upper die cavity (13).

2. The airtightness testing machine for rubber film products as defined in claim 1, wherein said fixing table (2) is provided with a plurality of fixing holes (4), and a bottom of said lower mold (14) is formed with projections which can be fitted into said fixing holes (4).

3. The airtightness testing machine for rubber film articles as defined in claim 1, wherein the upper mold (12) is provided at the top with an annular ring (17), and the annular ring (17) is capable of pressing the rubber film article.

4. The airtightness testing machine for rubber film products as defined in claim 1, wherein a first driving mechanism (20) is connected to a rear end of said fixing table (2), and said first driving mechanism (20) drives said fixing table (2) to move back and forth along said guide mechanism (3).

5. The airtightness testing machine for rubber film products as defined in claim 1, wherein the guide mechanism (3) comprises a guide rail and a crawler, the fixed table (2) is clamped on the guide rail, and the crawler is provided at an end of the fixed table (2).

6. The machine for testing the airtightness of rubber film products according to claim 1, wherein a display (6) is provided on the top cover (5) of the operating chamber (1), and the display (6) is electrically connected to the pressure sensor (19) so as to be able to display the pressure data in the upper mold chamber (13).

7. The airtightness testing machine for rubber film products as defined in claim 1, wherein two fixed tables (2) are disposed in said operation chamber (1), said fixed tables (2) being respectively fitted with a first supporting column (7) and a second supporting column (8); a first pressing plate (10) and a second pressing plate (9) are respectively fixed on the first supporting column (7) and the second supporting column (8); the first pressing plate (10) and the second pressing plate (9) are connected with a second driving mechanism (11) so as to drive the first pressing plate (10) and the second pressing plate (9) to reciprocate in the vertical direction; the first pressing plate (10) and the second pressing plate (9) can be pressed against the top of the upper die (12).

8. The airtightness testing machine for a rubber film product according to claim 4, wherein the first driving mechanism (20) is an air pump or a hydraulic pump.

9. The airtightness testing machine for a rubber film article according to claim 7, wherein the second driving mechanisms (11) are each independently an air pump or a hydraulic pump.

10. The machine for testing the airtightness of rubber film products according to claim 6, wherein the display (6) is a liquid crystal display.