CN-115962891-B - Air tightness testing structure of pre-penetrating-free inner core of membrane product with central hole

Abstract

The invention relates to the technical field of diaphragm airtight testing tools, in particular to a diaphragm product airtight testing structure without pre-penetrating inner cores, which comprises an upper mounting plate and an upper jig plate fixedly mounted on the bottom surface of the upper mounting plate, wherein a pressing assembly is arranged in the mounting hole and comprises an upper positioning core shell mounted in the mounting hole, a sliding seat is connected in the upper positioning core shell in a sliding manner, an upper positioning core is mounted on the bottom surface of the sliding seat, a spring is arranged on the top surface of the sliding seat, a lower movable template is arranged below the upper jig plate, a plurality of placing male dies are fixedly mounted on the upper surface of the lower movable template, a built-in hole is arranged in the placing male dies, a lower positioning core needle head is fixedly mounted on the top surface of the lower positioning core shell, and an air inlet hole is formed in the lower positioning core shell. The invention is convenient to operate, omits the process of manually penetrating the diaphragm on the inner core, and is beneficial to improving the testing efficiency.

Inventors

• YU WANCHUN
• SU HUIMIN
• YU JIANPING

Assignees

• 广东贝洛新材料科技有限公司

Dates

Publication Date

20260512

Application Date

20221128

Claims (4)

1. 1. The pre-penetrating inner core-free airtight test structure for the membrane products with the central holes is characterized by comprising an upper mounting plate (1) and an upper jig plate (10) fixedly mounted on the bottom surface of the upper mounting plate (1), a plurality of mounting holes (12) communicated with the outside are formed in the upper mounting plate (1) and the upper jig plate (10), a pressing assembly (2) is arranged in the mounting holes (12), the pressing assembly (2) comprises an upper positioning core shell (20) fixedly mounted in the mounting holes (12), a sliding seat (22) is connected in the upper positioning core shell (20) in a sliding manner, an upper positioning core (23) is fixedly mounted on the bottom surface of the sliding seat (22), and a spring (21) is arranged on the top surface of the sliding seat (22); The lower movable die plate (3) is arranged below the upper jig plate (10), a plurality of placing convex dies (31) which are arranged in a matrix are fixedly arranged on the upper surface of the lower movable die plate (3), built-in holes (32) are formed in the placing convex dies (31), ventilation components (4) are arranged in the built-in holes (32), each ventilation component (4) comprises a lower positioning core shell (41) arranged in each built-in hole (32), lower positioning core needle heads (43) penetrating through the top plate body of the corresponding placing convex dies (31) are fixedly arranged on the top surface of each lower positioning core shell (41), and air inlet holes (42) communicated with the corresponding lower positioning core needle heads (43) are formed in the corresponding lower positioning core shells (41); A slide hole (201) communicated with the outside is formed in the upper positioning core shell (20), and the slide seat (22) and the upper positioning core (23) are both positioned in the slide hole (201) and are in sliding connection with the slide hole (201); an air inlet joint (33) for ventilating the air inlet hole (42) is fixedly arranged on the bottom hole wall of the built-in hole (32); a slip ring (40) is fixedly arranged on the bottom end cylinder body of the lower positioning core shell (41), and the slip ring (40) is fixedly arranged on the inner wall of the built-in hole (32).
2. 2. The pre-penetrating inner core free airtight test structure for membrane products with central holes of claim 1, wherein the lower positioning core needle (43) is hollow and cylindrical and is used for airtight test operation by discharging gas outwards along the lower positioning core needle (43).
3. 3. The pre-penetrating-free inner core airtight test structure for membrane products with central holes of claim 1, wherein the bottom end of the spring (21) is fixedly arranged on the top surface of the sliding seat (22), and the top end of the spring (21) is fixedly arranged on an external frame body.
4. 4. The pre-penetrating-free inner core airtight test structure for membrane products with central holes of claim 1 is characterized in that guide holes (11) communicated with the outside are formed in the upper mounting plate (1) and the upper jig plate (10), guide posts (30) are fixedly arranged on the lower movable mould plate (3) opposite to the guide holes (11), and the guide posts (30) are located in the guide holes (11) and are in sliding connection with the guide holes (11).

Description

Air tightness testing structure of pre-penetrating-free inner core of membrane product with central hole Technical Field The invention relates to the technical field of diaphragm airtight testing tools, in particular to a pre-penetrating-free inner core airtight testing structure for diaphragm products with central holes. Background Before the membrane products are put into use, the air tightness of the membrane can influence the performance of the membrane, in order to remove the membrane with poor air tightness, the air tightness test operation is generally required to be carried out on the membrane in advance, and when the air tightness test operation is carried out, a corresponding air tightness test structure is generally required to be used; The invention patent with the authorized bulletin number of CN208109354U discloses a diaphragm air tightness testing device and a diaphragm air tightness rapid evaluation system, wherein the diaphragm air tightness testing device comprises a first cover plate provided with a first notch and a second cover plate provided with a second notch, the first notch and the second notch are combined to form a sealed air chamber, and a diaphragm is pressed in the sealed air chamber; Although this technical scheme has the advantage that can carry out accurate, the quick detection to the gas tightness, but this technical scheme is when specifically using, because the central part of taking the diaphragm of centre bore is provided with the through-hole, when taking centre bore diaphragm class product tradition to carry out the gas tightness test, need wear the diaphragm of taking the centre bore in advance on the inner core, utilize the inner core to carry out the shutoff to the centre bore position of diaphragm, place the diaphragm after the shutoff on the external corresponding terrace die of placing and test, this process operating personnel need at first insert the inner core in every diaphragm again carry out follow-up test operation, this process delays time, can cause operating personnel's operation man-hour longer, the productivity is low, be unfavorable for improving work efficiency. In view of the above, we propose a pre-penetrating-free inner core airtight test structure for membrane products with central holes. Disclosure of Invention The invention aims to provide a pre-penetrating-free inner core airtight test structure for diaphragm products with central holes, which aims to solve the defects in the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: The utility model provides a take airtight test structure of centre bore diaphragm class product exempt from to wear inner core in advance, includes mounting panel and the upper jig board of fixed mounting on the upper mounting panel bottom surface, the mounting panel with be provided with a plurality of mounting holes that are linked together with the external world in the upper jig board, be provided with the hold-down subassembly in the mounting hole, the hold-down subassembly includes the fixed mounting in the mounting hole goes up the location core casing, go up location core casing sliding connection has the slide, fixed mounting has last location core on the bottom surface of slide, be provided with the spring on the top surface of slide; The lower movable mould board is arranged below the upper jig board, a plurality of placing male dies which are arranged in a matrix are fixedly arranged on the upper surface of the lower movable mould board, a built-in hole is formed in the placing male dies, a ventilation assembly is arranged in the built-in hole, the ventilation assembly comprises a lower positioning core shell arranged in the built-in hole, a lower positioning core needle head penetrating out of the top board body of the placing male dies is fixedly arranged on the top surface of the lower positioning core shell, and an air inlet hole communicated with the lower positioning core needle head is formed in the lower positioning core shell. As a preferable technical scheme of the invention, the lower positioning core needle is hollow and cylindrical and is used for performing airtight test operation by discharging gas outwards along the lower positioning core needle. As a preferable technical scheme of the invention, the bottom end of the spring is fixedly arranged on the top surface of the sliding seat, and the top end of the spring is fixedly arranged on an external frame body, so that the upper positioning core is conveniently driven by the elasticity of the spring to be stably inserted into the central hole of the diaphragm. As a preferable technical scheme of the invention, guide holes communicated with the outside are formed in the upper mounting plate and the upper jig plate, a guide post is fixedly arranged at the position, opposite to the guide holes, of the lower movable die plate, the guide post is positioned in the guide holes and is i