Plastic shell mold leakage detection device

Abstract

The invention discloses a plastic shell mold leakage detection device, and relates to the technical field of mold leakage detection, the plastic shell mold leakage detection device comprises a detection box, a fixing assembly and an air delivery pump, a sealing door is arranged at the outer end of the front part of the detection box, fixing seats are arranged on the two sides of the outer part of the detection box, and electric push rods are arranged on the inner sides of the fixing seats; and the output end of the electric push rod is connected with a fixing assembly, a mold is arranged on the inner side of the fixing assembly, and an air conveying pump is arranged on the outer side of the top of the detection box. According to the method, the mode that the mold is filled with water and then the water is pressed out of a leakage point through high pressure is adopted, the situation that in the initial bubble detection process, due to the fact that the leakage point is too small, bubbles are not obvious, a camera cannot effectively capture the bubbles, and judgment missing is caused can be avoided, the detection precision of equipment can be improved, and the operation of filling the interior of the mold is more accurate. And the operation of pressurizing the interior of the mold can be followed by initial bubble detection, so that the reinspection convenience of the equipment can be greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of mold leakage detection, in particular to a plastic shell mold leakage detection device. Background Art

[0002] In industrial production, molds are used for various molds and tools for injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods to obtain the required products. In short, molds are tools used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. The mold is known as the "mother of industry". After long-term use, the common plastic shell molds on the market are prone to leakage at the weak points of the mold due to excessive injection pressure. If the mold leaks, it will seriously affect the molding effect of the injection mold. Therefore, injection molds usually need to be tested for mold leakage after long-term use.

[0003] The common mold leakage detection devices on the market usually place the mold in water, then pressurize the mold to observe whether there are bubbles to determine whether the mold is leaking. However, if the mold cannot be closed or the leakage point is too small, it is very easy to misjudge leakage.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a plastic shell mold leakage detection device is proposed. Summary of the invention

[0005] The object of the present invention is to provide a plastic housing mold leakage detection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plastic shell mold leakage detection device, comprising a detection box, a fixing component and an air pump, wherein a sealing door is provided at the front outer end of the detection box, and fixing seats are provided on both sides of the outside of the detection box, an electric push rod is provided on the inner side of the fixing seat, and the output end of the electric push rod is connected to the fixing component, a mold is placed on the inner side of the fixing component, an air pump is provided on the top outer side of the detection box, and a camera is placed on the inner top of the detection box, a pressurized pipe is connected between the air pump and the mold, and a water inlet pipe is connected to the left bottom of the detection box, and a drain pipe is connected to the right bottom of the detection box.

[0007] Furthermore, after the sealing door is closed, the interior of the detection box is in a sealed state, and the detection box is fixed to the fixing seat by welding.

[0008] Furthermore, the fixing assembly includes a fixing frame, a transverse plate, a pressure sensor, a first connecting seat, a return spring, a second connecting seat, an adjusting seat, a lead screw, a clamping plate, a telescopic seat and a top pressure plate. Transverse plates are provided on both sides of the interior of the fixing frame, and a pressure sensor is arranged on the inner side of the transverse plate. The side of the transverse plate close to the axis of the fixing frame is connected to the first connecting seat, and a return spring is provided on the inner side of the first connecting seat. The side of the return spring away from the first connecting seat is provided with a second connecting seat, and the outer end of the second connecting seat is connected to the adjusting seat. A lead screw is provided on the inner side of the adjusting seat, and the outer end of the lead screw is connected to the clamping plate. A telescopic seat is provided at the top middle end of the adjusting seat, and a top pressure plate is arranged on the inner side of the telescopic seat.

[0009] Furthermore, the fixing frame and the transverse plate are integrated, and the first connecting seats are distributed in an array at the outer end of the transverse plate, and the first connecting seats and the transverse plate are integrated.

[0010] Furthermore, the return spring is fixedly connected to the first connecting seat and the second connecting seat by bolts, and the second connecting seat is integrated with the adjustment seat.

[0011] Furthermore, the transverse plate is elastically connected to the adjustment seat via a return spring, and the transverse plate and the adjustment seat are distributed in parallel.

[0012] Furthermore, the lead screw drives the clamping plate to move inside the adjustment seat, and the clamping plate is clamped and fixed to the mold.

[0013] Furthermore, the top pressure plate and the pressure sensor are located on the same vertical line, and the top pressure plate is raised and lowered and adjusted inside the telescopic seat.

[0014] Furthermore, the air pump is connected to the interior of the mold through a pressurized pipe, and the camera is fixed at the vertical center line of the detection box.

[0015] Furthermore, the water inlet pipe is connected to the drain pipe through the detection box, and water enters the water inlet pipe so that the water overflows the top of the mold.

[0016] The present invention provides a plastic housing mold leakage detection device, which has the following beneficial effects:

[0017] 1. The staff of the present invention connects the pressurized tube to the injection port of the mold and closes the sealing door at the same time. At this time, the electric push rod can drive the two molds closer until the two molds are closed. After the two molds are closed, the water inlet pipe is opened, and clean water can be poured into the detection box until the clean water completely covers the mold. After the clean water covers the mold, gas can be injected into the two molds through the air pump. If the mold has leakage, the gas will be exposed from the leakage point of the mold and generate bubbles in the water. This allows the equipment to judge whether the mold has leakage by observing whether bubbles are generated on the water surface through the camera. In addition, thanks to the high-pressure gas transmission state inside the mold, the gas can enter the water body from the leakage point to form more obvious bubbles, which can reduce the probability that the camera is difficult to capture clearly due to too small or too few bubbles.

[0018] 2. After the mold of the present invention completes the leakage detection of internal high-pressure gas transmission, if the camera does not capture obvious bubbles, the electric push rod works to drive the two molds to separate, which allows the water in the detection box to enter the interior of the mold. After the mold is filled with water, the drain pipe is opened and the water in the detection box can be completely discharged. After the water in the detection box is discharged, the air pump can be used to fill the mold with high-pressure gas again. If there is a leakage point in the mold, the water in the mold will leak out from the leakage gap due to the high air pressure. After the mold is filled with water, the reset springs on the upper and lower sides of the adjustment seat are in a state of tension balance. If the mold leaks from the inside to the outside, the clean water stored in the mold will gradually flow out of the mold. At this time, the overall weight of the mold will be reduced. After the weight of the mold is reduced, the reset springs on the upper and lower sides of the adjustment seat are adjusted. The spring tension balance will be released, and the adjusting seat and the mold will gradually move up as the reset spring is reset due to the reduction in weight. During the upward movement of the adjusting seat, the top pressure plate can be driven to move up synchronously, and the upward movement of the top pressure plate can put pressure on the pressure sensor. Through this design, the staff only needs to observe whether the pressure of the pressure sensor increases to determine whether the mold has a leakage problem. The method of filling the mold with water and then using high pressure to press the water out of the leakage point can avoid the situation in the initial bubble detection process where the bubble is not obvious due to the small leakage point, and the camera cannot effectively capture it, resulting in missed judgment. This can improve the detection accuracy of the equipment, and the operation of filling the mold with water and pressurizing the mold can be carried over to the initial bubble detection, which greatly improves the convenience of re-inspection of the equipment.

[0019] 3. Benefiting from the fact that the clamping plate adopts the method of screw displacement and mold clamping, the present invention enables the clamping plate to adapt to molds of various sizes. In addition, the staff can remove or add the reset spring by loosening the bolts connected to the reset spring inside the first connecting seat and the second connecting seat. When the equipment replaces different types of molds, through this operation, the force when the reset spring tension on the upper and lower sides of the adjustment seat is balanced can be adjusted, and by loosening the bolts at the outer end of the telescopic seat, the extension length of the top pressure plate at the outer end of the telescopic seat can be adjusted. By adjusting the extension length of the top pressure plate, the value of the mold water seepage triggering the pressure sensor can be adjusted. This can avoid the situation where the water seepage value is too small and misjudgment is easy to occur after the mold is replaced, or the water seepage value is too large, resulting in too long detection time. Through the above operations, the equipment can flexibly adapt to different types of molds, which improves the scope of application of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional overall structural schematic diagram of a plastic housing mold leakage detection device of the present invention;

[0021] Figure 2 This is a schematic diagram of a state in which the inside of a detection box of a plastic shell mold leakage detection device of the present invention is not filled with water;

[0022] Figure 3 It is a schematic diagram of the water filling state inside the detection box of a plastic shell mold leakage detection device of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of a fixing component of a plastic housing mold leakage detection device of the present invention;

[0024] Figure 5 It is a schematic diagram of the top view of the structure of an adjustment seat of a plastic shell mold leakage detection device of the present invention;

[0025] Figure 6 It is a schematic diagram of the front view structure of an adjustment seat of a plastic shell mold leakage detection device of the present invention;

[0026] Figure 7 The present invention is a schematic diagram of the telescopic seat structure of a plastic shell mold leakage detection device.

[0027] In the figure: 1. detection box; 2. sealing door; 3. fixing seat; 4. electric push rod; 5. fixing assembly; 501. fixing frame; 502. horizontal plate; 503. pressure sensor; 504. first connecting seat; 505. reset spring; 506. second connecting seat; 507. adjustment seat; 508. lead screw; 509. clamping plate; 510. telescopic seat; 511. top pressure plate; 6. mold; 7. air pump; 8. camera; 9. pressurized pipe; 10. water inlet pipe; 11. drain pipe. DETAILED DESCRIPTION

[0028] See also Figures 1 to 7 The present invention provides a technical solution: a plastic shell mold leakage detection device, including a detection box 1, a fixing component 5 and an air pump 7, a sealing door 2 is provided at the front outer end of the detection box 1, and fixing seats 3 are provided on both sides of the outside of the detection box 1, an electric push rod 4 is provided on the inner side of the fixing seat 3, and the output end of the electric push rod 4 is connected to the fixing component 5, a mold 6 is placed on the inner side of the fixing component 5, an air pump 7 is provided on the top outer side of the detection box 1, and a camera 8 is placed on the inner top of the detection box 1, a pressurized pipe 9 is connected between the air pump 7 and the mold 6, and a water inlet pipe 10 is connected to the left bottom of the detection box 1, and a drain pipe 11 is connected to the right side of the bottom of the detection box 1.

[0029] See also Figures 1 to 7 After the sealing door 2 is closed, the interior of the detection box 1 is sealed, and the detection box 1 is welded and fixed to the fixing seat 3. The fixing assembly 5 includes a fixing frame 501, a horizontal plate 502, a pressure sensor 503, a first connecting seat 504, a return spring 505, a second connecting seat 506, an adjustment seat 507, a lead screw 508, a clamping plate 509, a telescopic seat 510 and a top pressure plate 511. The fixing frame 501 is provided with horizontal plates 502 on both sides of the interior, and the pressure sensor 503 is arranged on the inner side of the horizontal plate 502. A first connecting seat 504 is connected to the side close to the central axis of the fixed frame 501, and a return spring 505 is arranged on the inner side of the first connecting seat 504. A second connecting seat 506 is arranged on the side away from the first connecting seat 504, and an adjustment seat 507 is connected to the outer end of the second connecting seat 506. A lead screw 508 is arranged on the inner side of the adjustment seat 507, and a clamping plate 509 is connected to the outer end of the lead screw 508. A telescopic seat 510 is arranged at the top middle end of the adjustment seat 507, and the inner end of the telescopic seat 510 is connected to the inner end of the telescopic seat 510. A top pressure plate 511 is arranged on the side, the fixed frame 501 and the horizontal plate 502 are integrated, and the first connecting seat 504 is distributed in an array at the outer end of the horizontal plate 502, and the first connecting seat 504 and the horizontal plate 502 are integrated, the return spring 505 is fixedly connected with the first connecting seat 504 and the second connecting seat 506 by bolts, and the second connecting seat 506 and the adjustment seat 507 are integrated, the horizontal plate 502 is elastically connected with the adjustment seat 507 by the return spring 505, and the horizontal plate 502 and the adjustment seat 507 are flat. The screw 508 drives the clamping plate 509 to move inside the adjustment seat 507, and the clamping plate 509 is clamped and fixed with the mold 6. The top pressure plate 511 and the pressure sensor 503 are located on the same vertical line, and the top pressure plate 511 is raised and lowered inside the telescopic seat 510. The air pump 7 is connected to the inside of the mold 6 through the pressure pipe 9, and the camera 8 is fixed at the vertical center line of the detection box 1. The water inlet pipe 10 is connected to the drain pipe 11 through the detection box 1, and the water in the water inlet pipe 10 overflows the top of the mold 6.

[0030] The specific operation is as follows: the staff opens the sealing door 2 and places the upper and lower (left and right molds) of the mold 6 to be tested on the inner side of the fixed frame 501 respectively. At this time, the staff turns the screw 508 to drive the clamping plate 509 to move in the direction of the mold 6, so that the fixed frame 501 can fix the mold 6 through the clamping plate 509 on the mold 6. After the mold 6 and the clamping plate 509 are fixed, the staff connects the pressurized tube 9 with the injection port of the mold 6 and closes the sealing door 2 at the same time. At this time, the electric push rod 4 works to drive the two molds 6 to move closer until the two molds 6 are closed. After the two molds 6 are closed, the water inlet pipe 10 is opened to pour clean water into the inside of the inspection box 1 until the clean water completely submerges the mold 6. 6, the air pump 7 can be used to inject gas into the two molds 6. If there is leakage in the mold 6, the gas will be exposed from the leakage point of the mold 6 and generate bubbles in the water. This allows the device to use the camera 8 to shoot whether bubbles are generated on the water surface to determine whether the mold 6 has a leakage problem. In addition, thanks to the high-pressure gas transmission state inside the mold 6, the gas can enter the water body from the leakage point to form relatively obvious bubbles, which can reduce the probability that the camera 8 is difficult to capture clearly due to too small or too few bubbles. After the mold 6 completes the internal high-pressure gas transmission leakage detection, if the camera 8 does not capture obvious bubbles, the electric push rod 4 works to drive the two molds 6 to separate, which allows the water in the detection box 1 to enter the interior of the mold 6. After the inside of the mold 6 is filled with water, the drain pipe 11 is opened, and the water in the detection box 1 can be completely discharged. After the water in the detection box 1 is discharged, the high-pressure gas can be poured into the mold 6 again through the operation of the air pump 7. If there is a leakage point in the mold 6, the water in the mold 6 will leak out from the leakage gap due to the high air pressure state. After the inside of the mold 6 is filled with water, the return springs 505 on the upper and lower sides of the adjustment seat 507 are in a tension balance state. If the mold 6 leaks from the inside to the outside, the clean water stored in the mold 6 will gradually flow out of the mold 6. At this time, the overall weight of the mold 6 will be reduced. After the weight of the mold 6 is reduced, the tension balance of the return springs 505 on the upper and lower sides of the adjustment seat 507 will be released, and the adjustment seat 507 and the mold 6 will gradually return to the original position due to the weight reduction and the return spring 505 is reset. In the process of adjusting the seat 507 moving upward, the top pressure plate 511 can be driven to move upward synchronously, and the upward movement of the top pressure plate 511 can apply pressure to the pressure sensor 503. Through this design, the staff only needs to observe whether the pressure of the pressure sensor 503 increases to determine whether the mold 6 has a leakage problem. The method of filling the mold 6 with water and then using high pressure to press the water out of the leakage point can avoid the situation in which the camera 8 cannot effectively capture the bubble due to the small leakage point during the initial bubble detection process, resulting in unclear bubbles. This can improve the detection accuracy of the equipment, and the operation of filling the mold 6 with water and applying pressure to the mold 6 can be carried over to the initial bubble detection, which greatly improves the convenience of re-inspection of the equipment.Thanks to the fact that the clamping plate 509 adopts the method of displacement of the lead screw 508 and clamping with the mold 6, the clamping plate 509 can adapt to molds 6 of various sizes. In addition, the staff can remove or add the reset spring 505 by loosening the bolts connected to the reset spring 505 inside the first connecting seat 504 and the second connecting seat 506. When the equipment replaces different types of molds 6, through this operation, the force of the reset spring 505 on the upper and lower sides of the adjustment seat 507 can be adjusted when the tension is balanced, and by loosening the bolts at the outer end of the telescopic seat 510, the extension length of the top pressure plate 511 at the outer end of the telescopic seat 510 can be adjusted. By adjusting the extension length of the top pressure plate 511, the value of the mold 6 water seepage triggering pressure sensor 503 can be adjusted. This can avoid the situation that after replacing the mold 6, the water seepage value is too small and it is easy to misjudge or the water seepage value is too large, resulting in a long detection time. Through the above operations, the equipment can flexibly adapt to different types of molds 6, which improves the scope of application of the equipment. ,

[0031] In summary, when using the plastic shell mold leakage detection device, the staff first opens the sealing door 2, and places the upper and lower (left and right molds) of the mold 6 to be detected on the inner side of the fixed frame 501 respectively. At this time, the staff twists the lead screw 508 to drive the clamping plate 509 to move in the direction of the mold 6, so that the fixed frame 501 can fix the mold 6 through the clamping plate 509 to the mold 6. After the mold 6 and the clamping plate 509 are fixed, the staff connects the pressurized tube 9 with the injection port of the mold 6 and closes the sealing door 2 at the same time;

[0032] Then, the electric push rod 4 works to drive the two molds 6 to move closer until the two molds 6 are closed. After the two molds 6 are closed, the water inlet pipe 10 is opened to pour clean water into the detection box 1 until the clean water completely covers the mold 6. After the clean water covers the mold 6, the air pump 7 works to inject gas into the two molds 6. If there is leakage in the mold 6, the gas will be exposed from the leakage point of the mold 6 and generate bubbles in the water. This allows the device to use the camera 8 to shoot whether bubbles are generated on the water surface to determine whether there is a leakage problem in the mold 6. In addition, thanks to the high-pressure gas supply state inside the mold 6, the gas can enter the water body from the leakage point to form relatively obvious bubbles, which can reduce the probability that the camera 8 is difficult to capture clearly due to too small or too few bubbles;

[0033] Then, after the mold 6 completes the internal high-pressure gas leakage detection, if the camera 8 does not capture obvious bubbles, the electric push rod 4 works to drive the two molds 6 to separate, which allows the water in the detection box 1 to enter the interior of the mold 6. After the mold 6 is filled with water, the drain pipe 11 is opened and the water in the detection box 1 can be completely discharged. After the water in the detection box 1 is discharged, the air pump 7 works to fill the mold 6 with high-pressure gas again. If there is a leakage point in the mold 6, the water in the mold 6 will leak out from the leakage gap due to the high air pressure. After the mold 6 is filled with water, the reset springs 505 on the upper and lower sides of the adjustment seat 507 are in a tension balance state. If the mold 6 leaks from the inside to the outside, the clean water stored in the mold 6 will gradually flow out of the mold 6. At this time, the overall weight of the mold 6 will be reduced. After the weight of the mold 6 is reduced, the reset springs 505 on the upper and lower sides of the adjustment seat 507 are adjusted. 5 The tension balance will be released, and the adjustment seat 507 and the mold 6 will gradually move up as the reset spring 505 is reset due to the weight reduction. During the upward movement of the adjustment seat 507, the top pressure plate 511 can be driven to move up synchronously, and the upward movement of the top pressure plate 511 can pressurize the pressure sensor 503. Through this design, the staff only needs to observe whether the pressure of the pressure sensor 503 increases to determine whether the mold 6 has an internal leakage problem. The method of filling the mold 6 with water and then using high pressure to press the water out of the leakage point can avoid the situation in which the camera 8 cannot effectively capture the bubble due to the small leakage point in the initial bubble detection process, resulting in the bubble not being obvious. This can improve the detection accuracy of the equipment, and the operation of filling the mold 6 with water and the operation of pressurizing the mold 6 can be carried forward to the initial bubble detection, which greatly improves the convenience of re-inspection of the equipment;

[0034] Finally, thanks to the way in which the clamping plate 509 adopts the displacement of the lead screw 508 and the clamping engagement with the mold 6, the clamping plate 509 can adapt to molds 6 of various sizes. In addition, the staff can remove or add the reset spring 505 by loosening the bolts connected to the reset spring 505 inside the first connecting seat 504 and the second connecting seat 506. When the equipment replaces different types of molds 6, through this operation, the force when the tension of the reset spring 505 on the upper and lower sides of the adjustment seat 507 is balanced can be adjusted, and by loosening the bolts at the outer end of the telescopic seat 510, the extension length of the top pressure plate 511 at the outer end of the telescopic seat 510 can be adjusted. By adjusting the extension length of the top pressure plate 511, the value of the pressure sensor 503 triggered by the water seepage of the mold 6 can be adjusted. This can avoid the situation where the water seepage value is too small and misjudgment is easy to occur after the mold 6 is replaced, or the water seepage value is too large, resulting in a long detection time. Through the above operations, the equipment can flexibly adapt to different types of molds 6, which improves the scope of application of the equipment.

[0035] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A plastic housing mold leakage detection device, characterized in that: The invention comprises a detection box (1), a fixing assembly (5) and an air delivery pump (7); the front outer end of the detection box (1) is provided with a sealing door (2), and the two outer sides of the detection box (1) are provided with fixing seats (3); the inner side of the fixing seat (3) is provided with an electric push rod (4), and the output end of the electric push rod (4) is connected to the fixing assembly (5); the fixing assembly (5) comprises a fixing frame (501), a horizontal plate (502), a pressure sensor (503), and a first connecting seat (504). , a return spring (505), a second connecting seat (506), an adjusting seat (507), a lead screw (508), a locking plate (509), a telescopic seat (510) and a top pressure plate (511), the interior of the fixed frame (501) is provided with a transverse plate (502) on both sides, and a pressure sensor (503) is arranged on the inner side of the transverse plate (502), the transverse plate (502) is connected to a first connecting seat (504) on one side close to the central axis of the fixed frame (501), and the first connecting seat ( A return spring (505) is arranged on the inner side of the return spring (505), a second connection seat (506) is arranged on the side of the return spring (505) away from the first connection seat (504), and the outer end of the second connection seat (506) is connected to an adjustment seat (507), a lead screw (508) is arranged on the inner side of the adjustment seat (507), and the outer end of the lead screw (508) is connected to a clamping plate (509), and a telescopic seat (510) is arranged at the top middle end of the adjustment seat (507), and the telescopic seat (510) is arranged at the top middle end of the adjustment seat (507). A top pressure plate (511) is arranged on the inner side of the shrink seat (510), a mold (6) is arranged on the inner side of the fixing assembly (5), an air pump (7) is arranged on the outer side of the top of the detection box (1), and a camera (8) is arranged on the inner top of the detection box (1), a pressurizing pipe (9) is connected between the air pump (7) and the mold (6), a water inlet pipe (10) is connected to the left bottom of the detection box (1), and a drainage pipe (11) is connected to the right side of the bottom of the detection box (1).

2. A plastic housing mold leakage detection device according to claim 1, characterized in that: After the sealing door (2) is closed, the interior of the detection box (1) is in a sealed state, and the detection box (1) is fixed to the fixing seat (3) by welding.

3. A plastic housing mold leakage detection device according to claim 1, characterized in that: The fixing frame (501) and the transverse plate (502) are integrated, and the first connecting seats (504) are distributed in an array at the outer end of the transverse plate (502), and the first connecting seats (504) and the transverse plate (502) are integrated.

4. A plastic housing mold leakage detection device according to claim 1, characterized in that: The return spring (505) is fixedly connected to the first connecting seat (504) and the second connecting seat (506) by means of bolts, and the second connecting seat (506) and the adjustment seat (507) are integrated.

5. A plastic housing mold leakage detection device according to claim 1, characterized in that: The transverse plate (502) is elastically connected to the adjustment seat (507) via a return spring (505), and the transverse plate (502) and the adjustment seat (507) are distributed in parallel.

6. A plastic housing mold leakage detection device according to claim 1, characterized in that: The lead screw (508) drives the clamping plate (509) to move inside the adjustment seat (507), and the clamping plate (509) is clamped and fixed to the mold (6).

7. A plastic housing mold leakage detection device according to claim 1, characterized in that: The top pressure plate (511) and the pressure sensor (503) are located on the same vertical line, and the top pressure plate (511) is raised and lowered and adjusted inside the telescopic seat (510).

8. A plastic housing mold leakage detection device according to claim 1, characterized in that: The air delivery pump (7) is connected to the interior of the mold (6) through a pressure pipe (9), and the camera (8) is fixed at the vertical center line of the detection box (1).

9. A plastic housing mold leakage detection device according to claim 1, characterized in that: The water inlet pipe (10) is connected to the drain pipe (11) through the detection box (1), and water is introduced into the water inlet pipe (10) so that the water overflows the top of the mold (6).

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