Rubber airtightness detection device

Abstract

The utility model belongs to the technical field of rubber products, and particularly relates to a rubber airtightness detection device which comprises a rack, a top plate is fixedly mounted at the top of the rack, and a detector is fixedly mounted in one side of the top plate; a detection mechanism is fixedly mounted at the bottom of the top plate; a positioning mechanism is slidably mounted at the top of the rack through a guide rail; wherein the positioning mechanism comprises a lower detection die holder and a positioning assembly, a pull rod is fixedly mounted on one side of the lower detection die holder, a sliding seat is fixedly mounted at the bottom of the lower detection die holder, and the positioning assembly is slidably mounted in the cavity and the mounting cavity. According to the utility model, the rubber between the upper detection die holder and the lower detection die holder can be supported through the positioning assembly arranged in the cavity, and the area can push the pressure value at the position to change, so that the air leakage area can be conveniently positioned, and subsequent positioning detection analysis and improvement on the air leakage area are facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of rubber product technology, and specifically relates to a rubber airtightness testing device. Background Technology

[0002] Rubber is a highly elastic natural or synthetic polymer material widely used in the manufacture of various products. It can be obtained from natural sources or manufactured through chemical synthesis. Rubber products are made from natural or synthetic rubber as the main raw material through a series of processing techniques. These products are widely used in daily life and industrial fields due to their excellent elasticity, wear resistance, aging resistance, and good sealing performance.

[0003] Problems with existing technology:

[0004] While existing rubber air tightness testing devices can detect leaks in rubber, they cannot effectively locate the leaking area during the testing process. This necessitates the use of separate equipment for subsequent testing, which in turn affects the efficiency of subsequent rubber production improvements. Utility Model Content

[0005] The purpose of this invention is to provide a rubber airtightness testing device, which can support the rubber located between the upper and lower testing molds by setting a positioning component inside the cavity. This can cause a change in the pressure value at the location, thereby facilitating the location of the leakage area and making subsequent location detection analysis and improvement of the leakage area.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A rubber air tightness testing device includes a frame, a top plate fixedly installed on the top of the frame, and a testing instrument fixedly installed inside one side of the top plate.

[0008] A detection mechanism is fixedly installed at the bottom of the top plate, and a positioning mechanism is slidably installed on the top of the frame via a guide rail;

[0009] The positioning mechanism includes a lower detection mold base and a positioning component. A pull rod is fixedly installed on one side of the lower detection mold base, and a slide is fixedly installed on the bottom of the lower detection mold base. The positioning component is slidably installed inside the cavity and the mounting cavity.

[0010] The pull rod pulls the detection mold base, causing the slide to move linearly, so that the slide moves on the surface of the guide rail.

[0011] The positioning component includes a support plate and a spring. A connecting rod is fixedly installed on the bottom of the support plate, and the spring drives the bottom of the support plate to abut against the pressure sensor.

[0012] The connecting rod is slidably installed between the cavity and the mounting cavity, and the connecting rod abuts against the support plate and the cavity.

[0013] The pressure sensor is fixedly installed inside the mounting cavity, and the support plate is slidably installed with the lower detection mold base.

[0014] The testing mechanism includes a mounting plate and a cylinder. A vertical rod is fixedly installed on the bottom of the mounting plate. The cylinder pushes the connecting seat to drive the upper testing mold base to move vertically. An air supply pipe is fixedly installed on one side of the upper testing mold base.

[0015] The bottom of the upright is fixedly installed to the frame, the cylinder is fixedly installed on the top of the mounting plate, and the interior of the upper detection mold base is provided with a groove, which is connected to the detector through the air supply pipe.

[0016] The technical effects achieved by this utility model are as follows:

[0017] This invention utilizes a positioning mechanism installed at the top of the guide rail. A pull rod installed on one side of the lower detection mold base can push the lower detection mold base to a predetermined position. Activation of the detection mechanism allows the upper detection mold base to move vertically to the top of the lower detection mold base, thus clamping the rubber between them. Since the upper detection mold base is connected to the detector via an air supply pipe, activation of the detector allows compressed gas to be injected into the interior of the upper detection mold base. Because the rubber isolates the cavity of the lower detection mold base from the upper detection mold base, airtightness testing can be performed by observing changes in the internal pressure value of the upper detection mold base. Leakage areas will push the corresponding support plate, causing the connecting rod to move downwards and compressing the spring. The downward movement of the connecting rod allows it to contact the top of the pressure sensor, applying a certain pressure value to the sensor. Therefore, by using multiple pressure sensors, support plates, and connecting rods, the airtightness deficiencies in different areas of the rubber can be located, facilitating subsequent detection and analysis of leakage areas and improving subsequent production processes. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the overall installation structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the positioning mechanism structure in this utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the lower detection mold base in this utility model;

[0021] Figure 4 This is a schematic diagram of the detection mechanism in this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Frame; 2. Top plate; 3. Detector; 4. Detection mechanism; 41. Mounting plate; 42. Upright pole; 43. Cylinder; 44. Connecting seat; 45. Upper detection mold base; 46. Air supply pipe; 5. Guide rail; 6. Positioning mechanism; 61. Lower detection mold base; 62. Tie rod; 63. Slide; 64. Cavity; 65. Positioning assembly; 651. Support plate; 652. Connecting rod; 653. Spring; 654. Pressure sensor; 66. Mounting cavity. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figure 1-4 As shown, a rubber air tightness testing device includes a frame 1, a top plate 2 fixedly installed on the top of the frame 1, and a testing instrument 3 fixedly installed inside one side of the top plate 2.

[0026] A detection mechanism 4 is fixedly installed at the bottom of the top plate 2, and a positioning mechanism 6 is slidably installed on the top of the frame 1 via a guide rail 5;

[0027] The positioning mechanism 6 includes a lower detection mold base 61 and a positioning component 65. A pull rod 62 is fixedly installed on one side of the lower detection mold base 61, and a slide block 63 is fixedly installed on the bottom of the lower detection mold base 61. The positioning component 65 is slidably installed inside the cavity 64 and the mounting cavity 66.

[0028] See attached document Figure 1 , Figure 2 and Figure 3 In this embodiment, the pull rod 62 pulls the detection mold base 61, which drives the slide 63 to move linearly, so that the slide 63 moves on the surface of the guide rail 5.

[0029] In the above embodiment, the rubber sample to be tested can be placed on the top of the lower testing mold base 61, and the lower testing mold base 61 can be pushed by the hand lever 62 to drive the slide 63 and the rubber to move, so that the rubber moves to the bottom of the testing mechanism 4. The rubber is sealed and clamped by the action of the testing mechanism 4 and the lower testing mold base 61, and the air tightness is tested. During the test, the leakage area can be located by the positioning component 65.

[0030] Specifically, the positioning component 65 includes a support plate 651 and a spring 653. A connecting rod 652 is fixedly installed at the bottom of the support plate 651, and the spring 653 can drive the bottom of the support plate 651 to abut against the pressure sensor 654. Therefore, the gas leaking from the leaking area can push the support plate 651 to move the connecting rod 652 downward, thereby compressing the spring 653. During the downward movement of the bottom of the support plate 651, a certain pressure can be applied to the pressure sensor 654, thereby cooperating with the detector 3 to locate the leaking area.

[0031] More specifically, the connecting rod 652 is slidably installed between the cavity 64 and the mounting cavity 66, while the pressure sensor 654 is fixedly installed inside the mounting cavity 66. The support plate 651 is slidably installed with the lower detection mold base 61, and the connecting rod 652 abuts between the support plate 651 and the cavity 64. The spring 653 is sleeved on the outside of the connecting rod 652. Therefore, after the detection is completed, the rubber is adsorbed onto the surface of the lower detection mold base 61 because the detection mechanism 4 and the lower detection mold base 61 clamp the rubber. The reaction force of the spring 653 can push the support plate 651 to separate the rubber from the lower detection mold base 61.

[0032] See attached document Figure 1 and Figure 4 In this embodiment, the detection mechanism 4 includes a mounting plate 41 and a cylinder 43. A vertical rod 42 is fixedly installed at the bottom of the mounting plate 41. The cylinder 43 pushes the connecting seat 44 to drive the upper detection mold base 45 to move vertically. An air supply pipe 46 is fixedly installed on one side of the upper detection mold base 45.

[0033] In the above embodiment, since the output shaft of the cylinder 43 is fixedly installed with the connecting seat 44, and the connecting seat 44 is fixedly installed with the upper detection mold base 45, when the cylinder 43 is started, the connecting seat 44 can drive the upper detection mold base 45 to move toward the positioning mechanism 6, thereby fixing the rubber clamp.

[0034] According to the above structure, the bottom of the upright 42 is fixedly installed with the frame 1, and the cylinder 43 is fixedly installed on the top of the mounting plate 41. At the same time, since the upper detection mold base 45 has a groove inside, and the groove is connected to the detector 3 through the air supply pipe 46, compressed gas can be sent to the groove of the upper detection mold base 45 through the detector 3. Since the groove of the upper detection mold base 45 is isolated from the positioning mechanism 6 by rubber, the purpose of air tightness detection can be achieved by observing whether the internal pressure of the upper detection mold base 45 changes through the detector 3.

[0035] The working principle of this utility model is as follows: By placing the rubber on the top of the lower detection mold base 61, and pushing the pull rod 62 to move the rubber from the lower detection mold base 61 to the bottom of the upper detection mold base 45, the cylinder 43 is activated, causing the connecting seat 44 to move the upper detection mold base 45 downward. After the rubber is sealed and clamped by the action of the upper detection mold base 45 and the lower detection mold base 61, the detector 3 is activated to send compressed air into the groove of the upper detection mold base 45 through the air supply pipe 46. After turning off the air source, the system is allowed to stand for a period of time to allow the pressure to stabilize. This step is to eliminate initial fluctuations caused by factors such as temperature changes. By observing the changes in the internal pressure of the upper detection mold base 45 monitored by the detector 3, airtightness detection is achieved. When leakage occurs, the gas leakage can push the support plate 651 to move the connecting rod 652 down, so that the bottom of the connecting rod 652 abuts against the pressure sensor 654 and applies a certain pressure to the pressure sensor 654. This makes it easier to locate the location of the leakage area and facilitates subsequent targeted detection and analysis, thereby facilitating subsequent production improvements.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A rubber air tightness testing device, characterized by, Include: Frame (1), the top of the frame (1) is fixedly installed with a top plate (2), one side of the top plate (2) is fixedly installed with a detector (3) inside; The bottom of the top plate (2) is fixedly installed with a detection mechanism (4), and the top of the frame (1) is slidably installed with a positioning mechanism (6) through a guide rail (5); Wherein, the positioning mechanism (6) comprises a lower detection mold base (61) and a positioning assembly (65), one side of the lower detection mold base (61) is fixedly installed with a pull rod (62), the bottom of the lower detection mold base (61) is fixedly installed with a sliding seat (63), and the positioning assembly (65) is slidably installed in the cavity (64) and the installation cavity (66).

2. The rubber air tightness detection device according to claim 1, characterized in that: The pull rod (62) pulls the lower detection mold base (61) to drive the sliding seat (63) to move linearly, so that the sliding seat (63) moves on the surface of the guide rail (5).

3. The rubber air tightness detection device according to claim 1, characterized in that: The positioning assembly (65) comprises a support plate (651) and a spring (653), the bottom of the support plate (651) is fixedly installed with a connecting rod (652), and the bottom of the support plate (651) is abutted with a pressure sensor (654) driven by the spring (653).

4. The rubber air tightness detection device according to claim 3, characterized in that: The connecting rod (652) is slidably installed between the cavity (64) and the installation cavity (66), and the connecting rod (652) is abutted between the support plate (651) and the cavity (64).

5. The rubber air tightness detection device according to claim 3, characterized in that: The pressure sensor (654) is fixedly installed in the installation cavity (66), and the support plate (651) is slidably installed with the lower detection mold base (61).

6. The rubber air tightness detection device according to claim 1, wherein: The detection mechanism (4) comprises an installation plate (41) and a gas cylinder (43), the bottom of the installation plate (41) is fixedly installed with a vertical rod (42), the gas cylinder (43) drives a connecting seat (44) to drive an upper detection mold base (45) to move vertically, and one side of the upper detection mold base (45) is fixedly installed with a gas supply pipe (46).

7. A device for testing the air tightness of a rubber according to claim 6, characterized in that: The bottom of the vertical rod (42) is fixedly installed with the frame (1), the gas cylinder (43) is fixedly installed on the top of the installation plate (41), the inside of the upper detection mold base (45) is provided with a groove, and the groove is communicated with the detector (3) through the gas supply pipe (46).

Images