A universal plastic weld burst testing apparatus

Abstract

The utility model discloses a general plastic welding explosion detection equipment, including explosion -proof box, the door plate is rotatably installed on the explosion -proof box, be provided with control host computer, booster pump and water tank subassembly on the explosion -proof box, the air pipe is installed to the outlet of booster pump, one end of air pipe is connected with the communicating pipe, and one end of communicating pipe is connected with the plugging tool, the utility model discloses through water tank subassembly, uses synchronous controller drive installation ring electric push rod, through L type connecting frame drive support plate automatic rise to higher than the highest position of the water surface in the box, and the operator can place workpiece by hand, and it is convenient for subsequent plugging tool, and the electric push rod is started again, and the support plate that carries workpiece can be slowly moved to completely immerse under water, this design does not need personnel to bend, and especially adapts bulky workpiece, can prevent the workpiece deviation, the collision box wall caused by artificial uneven force, and the operation convenience is improved.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of plastic welding testing equipment, specifically a general-purpose plastic welding explosion testing equipment. Background Technology

[0002] Plastic welding technology is widely used in industries such as automotive, electronics, medical, and consumer goods. The quality of the welds directly affects the product's sealing performance, structural strength, and service life. To ensure that welded joints meet design requirements, burst pressure testing is typically used to assess the strength and integrity of the welded area. Traditional testing methods often involve visually inspecting for bubbles in water; this involves filling the welded workpiece with compressed air and then immersing it in water, observing for the presence of bubbles to determine if a leak exists.

[0003] However, in traditional testing equipment, workpieces must be manually handled and completely submerged in a water tank. Operators must bend over significantly or reach deep into the tank to place and position the workpiece, and then install sealing fixtures. This process is not only inconvenient but also affects testing efficiency to some extent. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing solutions are too simplistic. It mainly provides a universal plastic welding explosion detection device to solve the technical problems mentioned in the background, such as the need for manual handling of workpieces to be immersed in water tanks and placement and sealing installation by bending over or stretching out arms, which is inconvenient and inefficient.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A general-purpose plastic welding explosion detection device includes an explosion-proof box, a door panel rotatably mounted on the explosion-proof box, a control host, a booster pump and a water tank assembly on the explosion-proof box, an air pipe installed at the air outlet of the booster pump, a connecting pipe connected to one end of the air pipe, and a sealing fixture connected to one end of the connecting pipe.

[0006] More preferably, the water tank assembly includes an explosion-proof box with an installation inside the box body. An installation ring is installed on the outside of the box body, and an electric push rod is installed through the installation ring. The telescopic end of the electric push rod is equipped with a support plate through an L-shaped connecting frame. The electric push rod and the L-shaped connecting frame are symmetrically distributed about the vertical center line of the box body. The bottom of the box body is connected to a drain pipe through a valve.

[0007] More preferably, a telescopic rod is installed through the bottom of the mounting ring, the telescopic rod is connected to the support plate through an L-shaped connecting frame, and the telescopic rod and the L-shaped connecting frame are symmetrically distributed about the vertical center line of the box.

[0008] In a further preferred embodiment, the door panel is provided with a control panel, and an observation hole is provided on the door panel, with a protective glass installed inside the observation hole.

[0009] More preferably, the explosion-proof box is provided with feet at the bottom and near the four corners.

[0010] More preferably, the support plate has a plurality of holes arranged in a ring, and a baffle net is provided inside the holes, and the support plate is provided with anti-slip texture.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This universal plastic welding explosion detection equipment uses a water tank assembly. A synchronous controller drives an electric push rod on the mounting ring within the water tank assembly to move automatically upwards to its maximum stroke position via an L-shaped connecting frame. This position is above the water level inside the tank, eliminating the need for operators to bend over or reach deep into the tank to place workpieces. Workpiece placement can be completed simply by reaching out, facilitating the subsequent installation of sealing fixtures on the workpiece. The synchronous controller then restarts the electric push rod, driving the support plate carrying the workpiece to slowly move downwards until it is completely submerged. This reduces the bending and arm extension required for operation, especially for heavier or larger workpieces. It eliminates the need for manual assistance in pushing the workpiece into the water, preventing uneven force during manual operation from causing the workpiece to shift or collide with the tank's inner wall, thus improving operational convenience.

[0012] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of this utility model.

[0014] Numbering on the map: 1. Explosion-proof box; 2. Door panel; 3. Control panel; 4. Control host; 5. Booster pump; 6. Air pipe; 7. Water tank assembly; 701. Box body; 702. Mounting ring; 703. Telescopic rod; 704. Electric push rod; 705. L-shaped connecting frame; 706. Support plate. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0016] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0017] Please refer to the appendix carefully. Figure 1-3 A general-purpose plastic welding explosion detection device includes an explosion-proof box 1, a door panel 2 rotatably mounted on the explosion-proof box 1, a control host 4, a booster pump 5 and a water tank assembly 7 on the explosion-proof box 1, an air pipe 6 installed at the air outlet of the booster pump 5, one end of the air pipe 6 is connected to a connecting pipe, and the connecting pipe is connected to a sealing fixture (different specifications of sealing fixtures can be replaced according to requirements) through a flange quick-change connector.

[0018] In this embodiment, as Figure 3 As shown, the water tank assembly 7 includes a housing 701 installed inside the explosion-proof housing 1. An installation ring 702 is installed on the outer side of the housing 701, and an electric push rod 704 is installed through the installation ring 702. The telescopic end of the electric push rod 704 is connected to a support plate 706 via an L-shaped connecting bracket 705. The electric push rod 704 and the L-shaped connecting bracket 705 are symmetrically distributed about the vertical centerline of the housing 701. A drain pipe is connected to the bottom of the housing 701 via a valve. All electric push rods 704 can be driven by a synchronous controller. 04 Synchronous start-up: The electric push rod 704 drives the support plate 706 to move stably upward or downward through the corresponding L-shaped connecting frame 705. When the support plate 706 is raised to the highest position, the operator can easily place the test workpiece on the support plate 706. Then, the electric push rod 704 is started again, which can move the support plate 706 carrying the test workpiece into the water inside the box 701, which makes it easier for the staff to adjust the test workpiece and install the sealing tooling, thus improving the convenience of using the device.

[0019] In this embodiment, as Figure 3As shown, a telescopic rod 703 is installed through the bottom of the mounting ring 702. The telescopic rod 703 is connected to the support plate 706 via an L-shaped connecting frame 705, and the telescopic rod 703 and the L-shaped connecting frame 705 are symmetrically distributed about the vertical center line of the housing 701. When the support plate 706 moves up and down under the action of driving force, its displacement is synchronously transmitted to the telescopic rod 703 through the L-shaped connecting frame 705, so that the telescopic end of the telescopic rod 703 extends and retracts along the moving trajectory of the support plate 706. The symmetrical distribution structure of the telescopic rod 703 and the L-shaped connecting frame 705 can provide stable guiding support for the support plate 706, preventing tilting, swaying or offset problems that may occur during the movement of the support plate 706, and improving the operational stability of the support plate 706 when moving up and down.

[0020] In this embodiment, as Figure 3 As shown, the support plate 706 has several holes arranged in a ring, and baffles are installed inside the holes. The support plate 706 also has anti-slip textures. When the support plate 706 moves into the water in the box 701 under the action of driving force, the water in the box 701 can flow smoothly upward through the holes on the support plate 706, so that the support plate 706 can enter the water smoothly. When the workpiece to be tested is placed on the support plate 706, the anti-slip textures on the surface of the support plate 706 can increase the friction between the workpiece and the support plate 706, and improve the stability of the workpiece on the support plate 706. In addition, the baffle inside the holes can prevent impurities in the water or small debris generated during the test from entering the lower holes of the chamber 701 and causing blockage without affecting the flow of water, thus ensuring that the holes remain unobstructed for a long time.

[0021] In this embodiment, as Figure 1 and Figure 2 As shown, a control panel 3 is provided on the door panel 2, and an observation hole is provided on the door panel 2. The observation hole is fitted with protective glass, which can be made of explosion-proof tempered glass. The operator can observe the testing status of the workpiece inside the explosion-proof box 1 through the protective glass on the door panel 2 without opening the door panel 2. This makes it easy to keep track of the testing progress and judge the testing effect in a timely manner. In addition, if the workpiece is damaged during the test, the explosion-proof tempered glass can form a physical barrier to prevent fragments of the broken workpiece from flying to the outside of the explosion-proof box 1, thus avoiding personal injury to the operator.

[0022] In this embodiment, as Figure 1 and Figure 2 As shown, the bottom of the explosion-proof box 1 is equipped with feet near the four corners. By adjusting the feet at the four corners of the bottom of the explosion-proof box 1, the height of the feet can be adjusted according to the ground conditions of the actual use scenario, thereby adjusting the explosion-proof box 1 to a relatively horizontal state, ensuring the stability of the test workpiece placement, and improving the overall reliability and adaptability of the device.

[0023] It should be noted that the control panel 3 and the control host 4 used in this utility model are both mature systems of existing blasting detection devices, so their specific structures and control methods will not be described in detail here; and they are electrically connected to the core actuators such as the electric push rod 704, the booster pump 5 and the synchronous controller in this utility model.

[0024] The specific operating procedure of this utility is as follows: First, adjustable feet are installed at the bottom of the explosion-proof box 1 near the four corners. The operator rotates the adjustment knob of each foot according to the flatness of the ground to change the height and calibrate the explosion-proof box 1 to a relatively level state.

[0025] Next, inject an appropriate amount of water into the chamber 701, then turn on the interior lighting of the explosion-proof chamber 1 through the control panel 3 on the door panel 2 to facilitate observation of the workpiece status, and enter the "parameter setting interface" to preset the test parameters according to the specifications of the workpiece to be tested (such as volume and pressure resistance level).

[0026] Next, operate the control panel 3 to control the synchronous controller to drive the electric push rod 704 on the mounting ring 702 in the water tank assembly 7 to start synchronously. The telescopic end of the electric push rod 704 drives the support plate 706 to move upward to the highest stroke position through the L-shaped connecting frame 705, so that the support plate 706 is higher than the water surface inside the tank 701, making it convenient for the operator to reach out and operate. At this time, the workpiece to be tested is placed on the surface of the support plate 706.

[0027] Next, select the appropriate sealing fixture according to the specifications of the air inlet interface of the workpiece to be tested and manually tighten it at the workpiece interface to ensure no gap leakage. Then connect the air pipe 6 at the outlet of the booster pump 5 to the connecting pipe, and connect the other end of the connecting pipe to the air inlet of the sealing fixture to complete the air circuit closed loop construction. After connection, manually check the tightness of each interface to avoid loosening that could cause air leakage and affect the accuracy of the test results. After confirming that the workpiece and the air circuit are connected correctly, close the door 2 of the explosion-proof box 1.

[0028] Next, the electric push rod 704 is restarted via the synchronous controller, driving the support plate 706 to slowly move the workpiece under test downwards until the support plate 706 is completely submerged in water, so that the entire workpiece is covered by water. Then, the electric push rod 704 is stopped. Then, the control panel 3 or the manual valve is operated to briefly turn on the booster pump 5 to check the air intake system pressure, which must be greater than 6 bar. After turning off the booster pump 5, observe whether the pressure is stable. If the pressure does not drop significantly, it means that there is no leak in the air circuit. If it drops, open the door panel 2 to check the interface, and retighten or replace the sealing components until the air circuit is sealed. At the same time, confirm that the manual high-pressure air intake valve and exhaust valve are closed to prepare for subsequent automatic testing.

[0029] During testing, the system opens the high-pressure intake valve during the intake phase, and the booster pump 5 starts to inject high-pressure gas into the workpiece through the air passage. The control host 4 monitors the pressure in real time. When the preset test pressure is reached, the system enters the "high-pressure buffer time". During this time, the booster pump 5 continues to run to ensure uniform pressure inside the workpiece. After the buffer time ends, the high-pressure intake valve and the booster pump 5 are closed to stop the inflation and ensure stable pressure. During the pressure holding phase, the high-pressure intake valve and exhaust valve are kept closed. The control host 4 continuously monitors the pressure changes inside the workpiece through the pressure sensor (the pressure sensor is installed on the connecting pipe). If the workpiece is airtight, the pressure is stable. If there is a leak, the high-pressure gas will overflow, causing the pressure to drop and bubbles to be generated in the water at the leak point. The operator can observe the bubbles through the explosion-proof tempered glass and, in combination with the pressure curve and values ​​displayed in real time on the control panel 3, comprehensively judge whether the airtightness of the workpiece meets the standard.

[0030] After the pressure holding time is over, the exhaust stage begins. The high-pressure exhaust valve is opened, and the high-pressure gas inside the workpiece is discharged to the outside through the exhaust valve and air passage. After the control host 4 monitors the pressure and closes the exhaust valve when it drops to normal pressure, the air tightness test process is completed.

[0031] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A general-purpose plastic welding explosion detection device, comprising an explosion-proof box (1), characterized in that: The explosion-proof box (1) is rotatably mounted with a door panel (2). The explosion-proof box (1) is equipped with a control host (4), a booster pump (5) and a water tank assembly (7). The booster pump (5) is equipped with an air pipe (6) at its outlet. One end of the air pipe (6) is connected to a connecting pipe, and one end of the connecting pipe is connected to a sealing fixture.

2. The universal plastic welding explosion detection equipment according to claim 1, characterized in that: The water tank assembly (7) includes an explosion-proof box (1) inside which is installed in the box body (701). An installation ring (702) is installed on the outside of the box body (701). An electric push rod (704) is installed through the installation ring (702). The telescopic end of the electric push rod (704) is equipped with a support plate (706) through an L-shaped connecting frame (705). The electric push rod (704) and the L-shaped connecting frame (705) are symmetrically distributed about the vertical center line of the box body (701). The bottom of the box body (701) is connected to a drain pipe through a valve.

3. The universal plastic welding explosion detection equipment according to claim 2, characterized in that: The bottom of the mounting ring (702) is fitted with a telescopic rod (703), which is connected to the support plate (706) via an L-shaped connecting frame (705). The telescopic rod (703) and the L-shaped connecting frame (705) are symmetrically distributed about the vertical center line of the box (701).

4. The universal plastic welding explosion detection equipment according to claim 1, characterized in that: The door panel (2) is provided with a control panel (3), and the door panel (2) has an observation hole with a protective glass inside.

5. The universal plastic welding explosion detection equipment according to claim 1, characterized in that: Foot cups are provided at the bottom of the explosion-proof box (1) and near the four corners.

6. The universal plastic welding explosion detection device according to claim 3, characterized in that: The support plate (706) has several holes arranged in a ring, and a baffle net is installed inside the holes. The support plate (706) also has anti-slip texture.

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