Air tightness detection device

By combining airway pressurization and a multi-sealing mechanism with a pressure sensor, the problem of low efficiency in airtightness testing of injection molded parts in existing technologies has been solved, achieving efficient and automated airtightness testing.

CN223581293UActive Publication Date: 2025-11-21KUNSHAN JINLIAN PLASTIC PROD
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Patent Information

Application Number
CN202422708161.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-11-21
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

Existing airtightness testing methods are inefficient and cannot easily and effectively test the airtightness of injection molded parts of specific shapes. Existing devices also have complex structures.

Method used

An airtightness testing device was designed, which pressurizes the inner cavity of the injection molded part by inflating it with air through an air channel, and seals the functional holes of the injection molded part by using the first, second, third and fourth sealing mechanisms. Combined with a pressure sensor tester for continuous monitoring, it realizes automated testing.

Benefits of technology

It enables a simple and effective test of the airtightness of injection molded parts. The device has a simple structure, a high degree of automation, and is easy to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air tightness detection device, which comprises a base, a first sealing mechanism, a second sealing mechanism, a third sealing mechanism, a fourth sealing mechanism, a profiling seat and a detection piece, and is characterized in that an inner cavity of an injection molding piece placed at the upper part of the profiling seat is inflated and pressurized through an air passage; the first sealing mechanism, the second sealing mechanism, the third sealing mechanism and the fourth sealing mechanism are used for sealing functional holes of the injection molding part, the pressure sensor tester is used for continuously monitoring the pressure of an inner cavity of the injection molding part to test the air tightness of the injection molding part, and the device is simple in structure, high in automation degree, convenient to operate and high in practicability. The air tightness of the injection molding part can be simply and effectively detected.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to airtightness detection technical field, especially, relate to a kind of airtightness detection device. BACKGROUND

[0002] Injection molding part refers to the injection molding machine production various injection molding products collectively called injection molding part, including various packaging, parts etc. Mainly by polyethylene or polypropylene and add a variety of organic solvents after being made. After injection molding, to ensure the qualified rate of factory products, air tightness detection needs to be carried out.

[0003] The existing airtightness detection is generally to manually plug the functional hole of injection molding part, then pressurize injection molding part, and then detect the pressure in injection molding part. This detection method is inefficient. In addition, the current airtightness detection device is mostly complex in structure, and cannot simply and effectively detect the airtightness of injection molding part of specific shape. UTILITY MODEL CONTENT

[0004] The utility model mainly solves the technical problem to provide a kind of airtightness detection device, and the detection device is inflated and pressurized to the inner cavity of injection molding part placed on the upper part of profiling seat by air passage, then the functional hole of injection molding part is sealed by first sealing mechanism, second sealing mechanism, third sealing mechanism and fourth sealing mechanism, and the airtightness of injection molding part is tested by using pressure sensor test instrument to continuously monitor the pressure in the inner cavity of injection molding part. The device is simple in structure, high in automation degree, easy to operate, and can simply and effectively detect the airtightness of injection molding part.

[0005] To solve the above technical problems, one technical scheme of the utility model is as follows: a kind of airtightness detection device, the detection device includes:

[0006] The base, first sealing mechanism, second sealing mechanism, third sealing mechanism, fourth sealing mechanism, profiling seat and detection piece are all arranged on the upper part of the base. The first sealing mechanism and the second sealing mechanism are arranged on the left and right sides of the profiling seat respectively. The third sealing mechanism is arranged on the front side of the profiling seat. The fourth sealing mechanism is arranged on the upper part of the profiling seat. The profiling seat is arranged on the upper part of the base. The detection piece is arranged on one side of the profiling seat.

[0007] Preferably, the fourth sealing mechanism comprises a first driving member, a support plate, a plurality of support rods, a first mounting plate, a first connecting plate, a second connecting plate, a third connecting plate, a first profiled sealing member, a second profiled sealing member and a third profiled sealing member, the plurality of support rods are vertically arranged on the upper portion of the base, the support plate is arranged on the upper portion of the support rods, the first driving member is arranged on the upper portion of the support plate, the moving end of the first driving member is connected with the first mounting plate, the first connecting plate, the second connecting plate and the third connecting plate are arranged on the lower portion of the first mounting plate, the first profiled sealing member is arranged on the lower portion of the first connecting plate, the second profiled sealing member is arranged on the lower portion of the second connecting plate, and the third profiled sealing member is arranged on the lower portion of the third connecting plate.

[0008] Preferably, the first sealing mechanism and the second sealing mechanism each comprise a cushion block, a second driving member, a first driving plate and a fourth profiled sealing member, the cushion block is arranged on the upper portion of the base, the second driving member is arranged on the upper portion of the cushion block, the moving end of the second driving member is connected with the first driving plate, and the fourth profiled sealing member is arranged on one side of the first driving plate close to the profiled seat.

[0009] Preferably, the third sealing mechanism comprises a support, a second mounting plate, a third driving member, a second driving plate and a fifth profiled sealing member, the support is arranged on the upper portion of the base, the second mounting plate is arranged on the upper portion of the support in an inclined manner, the third driving member is arranged on the upper portion of the second mounting plate, the moving end of the third driving member is connected with the second driving plate, and the fifth profiled sealing member is arranged on one side of the second driving plate close to the profiled seat.

[0010] Preferably, the angle arranged between the second mounting plate and the support is 45°.

[0011] Preferably, the upper portion of the profiled seat is provided with a profiled cavity, and the profiled cavity is provided with an air duct for inflating the profiled cavity.

[0012] Preferably, the profiled cavity is further provided with a mounting groove, the mounting groove is used for mounting a detection member, and the detection member is provided with a pressure sensor tester.

[0013] The beneficial effects of the utility model are as follows:

[0014] The detection device inflates and pressurizes the inner cavity of the injection molding part placed on the upper portion of the profiled seat through the air duct, seals the functional hole of the injection molding part through the first sealing mechanism, the second sealing mechanism, the third sealing mechanism and the fourth sealing mechanism, continuously monitors the pressure of the inner cavity of the injection molding part by using the pressure sensor tester to test the air tightness of the injection molding part, and the device has the advantages of simple structure, high automation degree, convenient operation and simple and effective detection of the air tightness of the injection molding part. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a schematic view of the overall structure of the utility model;

[0016] Fig. 2 is a schematic view of the base layout of the utility model;

[0017] Fig. 3 is a schematic view of the first mounting plate layout of the utility model.

[0018] The parts in the drawings are marked as follows:

[0019] 100, base;

[0020] 200, first sealing mechanism; 201, cushion block; 202, second driving member; 203, first driving plate; 204, fourth profiling sealing element;

[0021] 300, second sealing mechanism;

[0022] 400, third sealing mechanism; 401, support; 402, second mounting plate; 403, third driving member; 404, second driving plate; 405, fifth profiling sealing element;

[0023] 500, fourth sealing mechanism; 501, first driving member; 502, support plate; 503, support rod; 504, first mounting plate; 505, first connecting plate; 506, second connecting plate; 507, third connecting plate; 508, first profiling sealing element; 509, second profiling sealing element; 510, third profiling sealing element;

[0024] 600, profiling seat; 601, profiling cavity; 602, air passage;

[0025] 700, detection member. DETAILED DESCRIPTION

[0026] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined.

[0027] Embodiment: refer to Figs. 1-3 The detection device comprises:

[0028] The base 100 comprises a first sealing mechanism 200, a second sealing mechanism 300, a third sealing mechanism 400, a fourth sealing mechanism 500, a contour seat 600, and a detection element 700. The first sealing mechanism 200, the second sealing mechanism 300, the third sealing mechanism 400, and the fourth sealing mechanism 500 are all disposed on the upper part of the base 100. The first sealing mechanism 200 and the second sealing mechanism 300 are respectively disposed on the left and right sides of the contour seat 600. The third sealing mechanism 400 is disposed on the front side of the contour seat 600. The fourth sealing mechanism 500 is disposed on the upper part of the contour seat 600. The contour seat 600 is disposed on the upper part of the base 100, and the detection element 700 is disposed on one side of the contour seat 600.

[0029] The air passage 602 inflates and pressurizes the inner cavity of the injection molded part placed on the upper part of the contour seat 600. Then, the first sealing mechanism 200, the second sealing mechanism 300, the third sealing mechanism 400 and the fourth sealing mechanism 500 seal the functional holes of the injection molded part. The pressure sensor tester continuously monitors the pressure in the inner cavity of the injection molded part to test its airtightness. This device has a simple structure, a high degree of automation, is easy to operate, and can simply and effectively test the airtightness of the injection molded part.

[0030] Furthermore, the fourth sealing mechanism 500 includes a first driving member 501, a support plate 502, a plurality of support rods 503, a first mounting plate 504, a first connecting plate 505, a second connecting plate 506, a third connecting plate 507, a first contoured seal 508, a second contoured seal 509, and a third contoured seal 510. The plurality of support rods 503 are vertically arranged on the upper part of the base 100, the support plate 502 is arranged on the upper part of the support rods 503, the first driving member 501 is arranged on the upper part of the support plate 502, and the moving end of the first driving member 501 is connected to the first mounting plate 504. The first connecting plate 505, the second connecting plate 506, and the third connecting plate 507 are arranged in sequence on the lower part of the first mounting plate 504. The first contoured seal 508 is arranged on the lower part of the first connecting plate 505, the second contoured seal 509 is arranged on the lower part of the second connecting plate 506, and the third contoured seal 510 is arranged on the lower part of the third connecting plate 507.

[0031] Among them, reference Fig. 2 As shown, both the first sealing mechanism 200 and the second sealing mechanism 300 include a pad 201, a second driving member 202, a first driving plate 203, and a fourth contour sealing member 204. The pad 201 is disposed on the upper part of the base 100, the second driving member 202 is disposed on the upper part of the pad 201, the moving end of the second driving member 202 is connected to the first driving plate 203, and the fourth contour sealing member 204 is disposed on the side of the first driving plate 203 near the contour seat 600.

[0032] The third sealing mechanism 400 comprises a bracket 401, a second mounting plate 402, a third driving member 403, a second driving plate 404 and a fifth profiled sealing member 405, the bracket 401 is arranged at the upper portion of the base 100, the second mounting plate 402 is arranged at the upper portion of the bracket 401 in an inclined manner, the third driving member 403 is arranged at the upper portion of the second mounting plate 402, the moving end of the third driving member 403 is connected with the second driving plate 404, and the fifth profiled sealing member 405 is arranged at the side of the second driving plate 404 close to the profiling seat 600.

[0033] It should be particularly pointed out that the angle arranged between the second mounting plate 402 and the bracket 401 is 45°.

[0034] It should be further pointed out that the upper portion of the profiling seat 600 is provided with a profiling cavity 601, and the profiling cavity 601 is provided with an air channel 602 for inflating the profiling cavity 601.

[0035] In addition, the profiling cavity 601 is also provided with a mounting groove, and the mounting groove is used for mounting a detection member 700, and the detection member 700 is provided with a pressure sensor tester.

[0036] The working principle of the utility model is as follows:

[0037] 1, the injection molding part is placed on the upper portion of the profiling seat 600, the opening end of the injection molding part is placed in the profiling cavity 601 of the profiling seat 600, the first driving member 501 moves downward by driving the first mounting plate 504, the first mounting plate 504 drives the first connecting plate 505, the second connecting plate 506 and the third connecting plate 507, and the first mounting plate 504 drives the first profiled sealing member 508, the second profiled sealing member 509 and the third profiled sealing member 510 to plug the three function holes on the upper portion of the injection molding part.

[0038] 2, the second driving member 202 drives the first driving plate 203, the first driving plate 203 drives the fourth profiled sealing member 204 to be close to the left and right sides of the injection molding part, and the fourth profiled sealing member 204 plugs the two function holes on the left and right sides of the injection molding part.

[0039] 3, the third driving member 403 drives the second driving plate 404, the second driving plate 404 drives the fifth sealing member to be close to the back of the injection molding part, and the fifth sealing member plugs the function hole behind the injection molding part.

[0040] 4, the air pump inflates and pressurizes in the profiling cavity 601 through the air channel 602, and the pressure sensor tester continuously monitors the pressure in the cavity of the injection molding part to test the air tightness of the injection molding part, the device has the advantages of simple structure, high automation degree, convenient operation and the like, and can simply and effectively detect the air tightness of the injection molding part.

[0041] The above are only embodiments of the present application, and do not limit the patent scope of the present application, and any equivalent structural transformation or direct or indirect application in other related technical fields using the content of the present application specification and drawings is also included in the patent protection scope of the present application.

Claims

1. An airtightness testing device, characterized in that, The detection device includes: The device comprises a base, a first sealing mechanism, a second sealing mechanism, a third sealing mechanism, a fourth sealing mechanism, a contouring seat, and a detection component. The first, second, third, and fourth sealing mechanisms are all located on the upper part of the base. The first and second sealing mechanisms are respectively located on the left and right sides of the contouring seat. The third sealing mechanism is located on the front side of the contouring seat. The fourth sealing mechanism is located on the upper part of the contouring seat. The contouring seat is located on the upper part of the base. The detection component is located on one side of the contouring seat.

2. The airtightness testing device according to claim 1, characterized in that: The fourth sealing mechanism includes a first driving component, a support plate, several support rods, a first mounting plate, a first connecting plate, a second connecting plate, a third connecting plate, a first contour seal, a second contour seal, and a third contour seal. The support rods are vertically arranged on the upper part of the base, and the support plate is arranged on the upper part of the support rods. The first driving component is arranged on the upper part of the support plate, and the moving end of the first driving component is connected to the first mounting plate. The first, second, and third connecting plates are arranged sequentially on the lower part of the first mounting plate. The first contour seal is arranged on the lower part of the first connecting plate, the second contour seal is arranged on the lower part of the second connecting plate, and the third contour seal is arranged on the lower part of the third connecting plate.

3. The airtightness testing device according to claim 2, characterized in that: Both the first sealing mechanism and the second sealing mechanism include a pad, a second driving member, a first driving plate, and a fourth contour sealing member. The pad is disposed on the upper part of the base, the second driving member is disposed on the upper part of the pad, the moving end of the second driving member is connected to the first driving plate, and the fourth contour sealing member is disposed on the side of the first driving plate near the contour seat.

4. The airtightness testing device according to claim 3, characterized in that: The third sealing mechanism includes a bracket, a second mounting plate, a third driving member, a second driving plate, and a fifth contour seal. The bracket is disposed on the upper part of the base, the second mounting plate is inclinedly disposed on the upper part of the bracket, the third driving member is disposed on the upper part of the second mounting plate, the moving end of the third driving member is connected to the second driving plate, and the fifth contour seal is disposed on the side of the second driving plate near the contour seat.

5. The airtightness testing device according to claim 4, characterized in that: The angle between the second mounting plate and the bracket is 45°.

6. The airtightness testing device according to claim 5, characterized in that: The upper part of the contouring base is provided with a contouring cavity, and the contouring cavity is provided with an air passage for inflating the contouring cavity.

7. The airtightness testing device according to claim 6, characterized in that: The cavity is also provided with a mounting groove for mounting a test piece, which is equipped with a pressure sensor tester.