Novel vacuum pressing airbag damage detection device

Abstract

The utility model provides a novel vacuum press-fit air bag damage detection device, which comprises a vacuum press-fit template group, a pressure measuring device and a PLC, the vacuum press-fit template group comprises an upper press-fit template and a lower press-fit template, the upper press-fit template comprises a rubber plate fixing plate, an air bag fixing plate and a vacuum air bag, and the lower press-fit template comprises a rubber plate fixing plate, an air bag fixing plate and a vacuum air bag. The vacuum air bag is fixed on the lower surface of the rubber plate fixing plate through the air bag fixing plate; the pressure measuring device is used for measuring the pressure in the vacuum air bag and is connected with the PLC; the lower pressing template comprises a lower hot plate, and an air bag detection plate, a detection cover plate and a burning iron plate which are sequentially arranged in the lower hot plate from bottom to top, the detection cover plate and the burning iron plate are detachably arranged in the lower hot plate, and during detection, the burning iron plate and the detection cover plate are detached; the upper surface of the air bag detection plate is an uneven surface.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pressing, in particular to a novel vacuum pressing airbag damage detection device. Background Art

[0002] After the flexible circuit board's substrate is covered with an insulating film or reinforcing material, a rapid vacuum laminating machine is used to heat and pressurize it. This ensures that the film or reinforcing material adheres tightly to the substrate, preventing bubbles and other defects that could cause scrap. However, during vacuum laminating, the airbag can break while the machine continues to operate normally without sounding an abnormality alarm, resulting in defects or scrapping of the laminated product. Therefore, there is an urgent need for a new vacuum laminating airbag damage detection device that can quickly generate an alarm signal when the airbag breaks. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a new vacuum pressing airbag damage detection device, including a vacuum pressing template group, a pressure measuring device and a PLC, the vacuum pressing template group includes an upper pressing template and a lower pressing template, the upper pressing template includes a rubber plate fixing plate, an airbag fixing plate and a vacuum airbag, the vacuum airbag is fixed to the lower surface of the rubber plate fixing plate through the airbag fixing plate; the pressure measuring device is used to measure the pressure in the vacuum airbag and is connected to the PLC; the lower pressing template includes a lower hot plate and an airbag detection plate, a detection cover plate and a burning iron plate arranged in the lower hot plate from bottom to top, the detection cover plate and the burning iron plate are both detachable and arranged in the lower hot plate, and the burning iron plate and the detection cover plate are removed during detection; the upper surface of the airbag detection plate is uneven.

[0004] Optionally, a plurality of detection pins arranged at intervals are provided on the upper surface of the airbag detection plate, and the uneven surface is formed between the plurality of detection pins and the upper surface of the airbag detection plate.

[0005] Optionally, the new vacuum pressed airbag damage detection device further includes a detection connecting rod, a first detection hole is provided on the rubber plate fixing plate, a second detection hole connected to the first detection hole is provided on the airbag fixing plate, and the second detection hole is connected to the interior of the vacuum airbag; the detection connecting rod is a hollow tubular structure, the first end of the detection connecting rod is connected to the interior of the vacuum airbag through the first detection hole and the second detection hole in sequence, and the second end of the detection connecting rod is connected to the pressure measuring device.

[0006] Optionally, the first end of the detection connecting rod is inserted into the first detection hole and the second detection hole in sequence, and the detection connecting rod is sealed and connected to the first detection hole and the second detection hole respectively through sealing rings.

[0007] Optionally, a first inflation hole is further provided on the rubber plate fixing plate, and the first inflation hole is connected to the air source through an air pressure pipeline; a second inflation hole is provided on the airbag fixing plate and is connected to the first inflation hole, and the second inflation hole is connected to the interior of the vacuum air bag; during detection, the air source inflates the vacuum air bag at low pressure.

[0008] Optionally, the first inflation hole and the first detection hole are arranged diagonally, and the second inflation hole and the second detection hole are arranged diagonally.

[0009] Optionally, the pressure measuring device is a pressure monitoring sensor.

[0010] Optionally, a recess is provided on the upper surface of the lower hot plate, and the airbag detection plate, the detection cover plate and the burning iron plate are sequentially arranged in the recess from bottom to top.

[0011] Compared with the prior art, the technical solution of the embodiment of the utility model has the following beneficial effects:

[0012] The utility model arranges an airbag detection plate in the lower hot plate, and the uneven surface of the airbag detection plate is squeezed against the inflated vacuum bag, so that the surface of the vacuum bag forms a wave-peak and trough-shaped curved surface due to the mutual squeezing with the uneven surface of the airbag detection plate, causing the rupture of the vacuum bag to open and form air leakage; when the actual air pressure in the vacuum bag is insufficient or lower than the air pressure set value, the pressure measuring device feeds back the actual air pressure to the PLC, and the PLC alarms, thereby achieving the purpose of timely monitoring of the vacuum bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0014] Figure 1 A schematic structural diagram of a vacuum pressing template assembly provided in one embodiment of the present invention;

[0015] Figure 2 A schematic structural diagram of an upper pressing template provided in one embodiment of the present utility model;

[0016] Figure 3 A schematic structural diagram of a lower pressing template provided in one embodiment of the present utility model;

[0017] Figure 4 This is a structural schematic diagram of an airbag detection plate and a detection cover provided in one embodiment of the present utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] The terms "first," "second," "third," "fourth," and so on (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way are interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in orders other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or apparatuses. The terms "on" and "above" and any variations thereof are intended to describe positional relationships and do not imply a relationship of direct contact between the objects being described.

[0020] As described in the background art, vacuum pressing machines currently available on the market are unable to detect whether the airbag is damaged or generate an alarm when the airbag is damaged.

[0021] To solve the above technical problems, please refer to Figures 1 to 4The utility model provides a new vacuum pressing airbag damage detection device, including a vacuum pressing template group, a pressure measuring device and a PLC, the vacuum pressing template group includes an upper pressing template 1 and a lower pressing template 2, the upper pressing template 1 includes a rubber plate fixing plate 101, an airbag fixing plate 102 and a vacuum airbag 103, the vacuum airbag 103 is fixed to the lower surface of the rubber plate fixing plate 101 through the airbag fixing plate 102; the pressure measuring device is used to measure the vacuum airbag 1 03, and is connected to the PLC; the lower pressing template 2 includes a lower hot plate 204 and an airbag detection plate 203, a detection cover 202 and a burning iron plate 201 arranged in the lower hot plate 204 from bottom to top, the detection cover 202 and the burning iron plate 201 are both detachable and arranged in the lower hot plate 204. During detection, the burning iron plate 201 and the detection cover 202 are removed; the upper surface of the airbag detection plate 203 is uneven.

[0022] The detection method of the airbag damage detection device includes:

[0023] Remove the burning iron plate 201 and the detection cover plate 202 from the lower heating plate 204;

[0024] Close the upper pressing template 1 and the lower pressing template 2;

[0025] Vacuuming the cavity formed by closing the upper pressing template 1 and the lower pressing template 2;

[0026] Low-pressure air is inflated and boosted into the vacuum air bag 103, and the vacuum air bag 103 expands downward, and its surface will be squeezed with the uneven surface of the air bag detection plate 203. When the vacuum air bag 103 is damaged, the surface of the vacuum air bag 103 is squeezed with the uneven surface of the air bag detection plate 203 to form a wave-like curved surface, causing the rupture of the vacuum air bag 103 to be open, thereby causing air leakage; when the actual air pressure in the vacuum air bag 103 is insufficient or lower than the air pressure setting value, the pressure measuring device feeds back the actual air pressure to the PLC, and the PLC alarms.

[0027] In summary, the present invention arranges an airbag detection plate 203 in the lower hot plate 204, and the uneven surface of the airbag detection plate 203 is squeezed against the inflated vacuum air bag 103, so that the surface of the vacuum air bag 103 forms a crest and trough-shaped curved surface due to the mutual squeezing with the uneven surface of the airbag detection plate 203, causing the rupture of the vacuum air bag 103 to be open, thereby forming an air leak; when the actual air pressure in the vacuum air bag 103 is insufficient or lower than the air pressure setting value, the pressure measuring device feeds back the actual air pressure to the PLC, and the PLC alarms, thereby achieving the purpose of timely monitoring of the vacuum air bag 103.

[0028] In order to make the above-mentioned purposes, features and beneficial effects of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] One embodiment of the present invention provides a new vacuum pressing airbag damage detection device, including a vacuum pressing template group, a pressure measuring device and a PLC. The vacuum pressing template group includes an upper pressing template 1 and a lower pressing template 2. The upper pressing template 1 includes a rubber plate fixing plate 101, an airbag fixing plate 102 and a vacuum airbag 103. The vacuum airbag 103 is fixed to the lower surface of the rubber plate fixing plate 101 through the airbag fixing plate 102. The pressure measuring device is used to measure the pressure in the vacuum airbag 103 and is connected to the PLC. The lower pressing template 2 includes a lower hot plate 204, an airbag detection plate 203, a detection cover plate 202 and a fired iron plate 201. The lower hot plate 204 is located at the bottom layer, and the fired iron plate 201 is located at the top layer. The airbag detection plate 203, the detection cover plate 202 and the fired iron plate 201 are arranged in the lower hot plate 204 from bottom to top. As an embodiment, a recess is provided on the upper surface of the lower hot plate 204, and the airbag detection plate 203, the detection cover plate 202 and the fired iron plate 201 are arranged in the recess in sequence from bottom to top, and the upper surface of the fired iron plate 201 is flush with the upper surface of the lower hot plate 204.

[0030] The detection cover 202 and the burning iron plate 201 can be detachably arranged in the lower hot plate 204. As for whether the airbag detection plate 203 is fixedly arranged in the lower hot plate 204 or detachably arranged in the lower hot plate 204, the present invention does not make any specific restrictions on this.

[0031] During the pressing operation, the airbag detection plate 203, the detection cover plate 202 and the fired iron plate 201 are all arranged in the lower hot plate 204, and the substrate of the flexible circuit board with an insulating film or reinforcing auxiliary materials adhered to the surface is placed on the lower pressing template 2 for pressing operation.

[0032] The upper surface of the airbag inspection plate 203 is uneven. During damage inspection of the vacuum airbag 103, the sintered iron plate 201 and the inspection cover 202 must first be removed from the lower hot plate 204, exposing the uneven surface of the airbag inspection plate 203. The upper and lower pressing plates 1 and 2 are then joined together. After this, a cavity is formed between the upper and lower pressing plates 1 and 2, and this cavity is evacuated. When the vacuuming is completed, the vacuum air bag 103 is inflated and pressurized at low pressure, and the vacuum air bag 103 expands downward, and its surface will be squeezed with the uneven surface of the air bag detection plate 203. When the vacuum air bag 103 is damaged, the surface of the vacuum air bag 103 is squeezed with the uneven surface of the air bag detection plate 203 to form a wave-like curved surface, causing the rupture of the vacuum air bag 103 to be open, thereby causing air leakage; when the actual air pressure in the vacuum air bag 103 is insufficient or lower than the air pressure setting value, the pressure measuring device feeds back the actual air pressure to the PLC, and the PLC alarms.

[0033] In the present invention, during the damage detection operation of the vacuum air bag 103, low-pressure inflation and pressurization are used to inflate and pressurize the vacuum air bag 103. The reason is that the upper surface of the air bag detection plate 203 is uneven. If high-pressure inflation and pressurization are used, the inflation speed of the vacuum air bag 103 will be too fast, and the vacuum air bag 103 will explode when the uneven surface of the air bag detection plate 203 and the vacuum air bag detection plate 203 are squeezed against each other.

[0034] The present invention does not impose any specific restrictions on the formation structure of the uneven surface of the airbag detection plate 203. As an example, please refer to Figure 4 The upper surface of the airbag detection plate 203 is provided with a plurality of detection pins 20301 spaced apart from each other, and the uneven surface is formed between the plurality of detection pins 20301 and the upper surface of the airbag detection plate 203. Of course, the present invention is not limited to this, and a plurality of protrusions or grooves may be spaced apart on the upper surface of the airbag detection plate 203 to form the uneven surface of the airbag detection plate 203.

[0035] The present invention does not impose any specific limitation on how the pressure measuring device measures the pressure in the vacuum air bag 103 .

[0036] As an embodiment, the pressure measuring device measures the pressure in the vacuum air bag 103 by detecting the connecting rod. Figure 2The rubber plate fixing plate 101 is provided with a first detection hole 10101, and the airbag fixing plate 102 is provided with a second detection hole 10201 connected to the first detection hole 10101, and the second detection hole 10201 is connected to the interior of the vacuum air bag 103; the detection connecting rod is a hollow tubular structure, and the first end of the detection connecting rod is connected to the interior of the vacuum air bag 103 through the first detection hole 10101 and the second detection hole 10201 in sequence, and the second end of the detection connecting rod is connected to the pressure measuring device, and the pressure inside the vacuum air bag 103 is detected by the pressure measuring device.

[0037] In order to prevent air leakage, as an embodiment, the first end of the detection connecting rod is inserted into the first detection hole 10101 and the second detection hole 10201 in sequence, and the detection connecting rod is sealed and connected to the first detection hole 10101 and the second detection hole 10201 through sealing rings respectively.

[0038] In order to prevent the detection connecting rod from deforming during the detection process and causing inaccurate detection results, as an embodiment, since the detection connecting rod is a hard tubular structure, such as a steel pipe, and to facilitate the connection of the hard tubular detection connecting rod with the pressure measuring device, the second end of the detection connecting rod is connected to the pressure measuring device via a Teflon air tube.

[0039] Because the air source needs to supply gas to the vacuum airbag 103, the upper pressing template 1 is provided with inflation holes that communicate with the vacuum airbag 103. Specifically, the rubber plate fixing plate 101 is provided with a first inflation hole 10102, which is connected to the air source via a pneumatic pipeline. The airbag fixing plate 102 is provided with a second inflation hole 10202 that communicates with the first inflation hole 10102 and communicates with the interior of the vacuum airbag 103. To prevent gas leakage, the pneumatic pipelines are sealed to the first and second inflation holes 10102, 10202, respectively, via inflation seals. During the pressing operation, the air source inflates the vacuum airbag 103 with high-pressure gas; during airbag damage detection, the air source inflates the vacuum airbag 103 with low-pressure gas.

[0040] In order to facilitate the assembly and replacement of the rubber plate fixing plate 101 and the airbag fixing plate 102, as an embodiment, the inflation hole and the detection hole can be shared, that is, the first inflation hole 10102 and the first detection hole 10101 are diagonally arranged, and the second inflation hole 10202 and the second detection hole 10201 are diagonally arranged.

[0041] Pressure measuring devices are a relatively mature technology in the field of pressure monitoring. Therefore, the present invention does not limit the specific type of pressure measuring devices. As an embodiment, the pressure measuring device is a pressure monitoring sensor.

[0042] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A new vacuum pressed airbag damage detection device, characterized in that: It includes a vacuum pressing template group, a pressure measuring device and a PLC, the vacuum pressing template group includes an upper pressing template and a lower pressing template, the upper pressing template includes a rubber plate fixing plate, an airbag fixing plate and a vacuum airbag, the vacuum airbag is fixed to the lower surface of the rubber plate fixing plate through the airbag fixing plate; the pressure measuring device is used to measure the pressure in the vacuum airbag and is connected to the PLC; the lower pressing template includes a lower hot plate and an airbag detection plate, a detection cover plate and a burning iron plate arranged in the lower hot plate from bottom to top, the detection cover plate and the burning iron plate are both detachable and arranged in the lower hot plate, and the burning iron plate and the detection cover plate are removed during detection; the upper surface of the airbag detection plate is uneven.

2. The novel vacuum pressed airbag damage detection device according to claim 1 is characterized in that: The upper surface of the airbag detection plate is provided with a plurality of detection pins arranged at intervals, and the uneven surface is formed between the plurality of detection pins and the upper surface of the airbag detection plate.

3. The novel vacuum pressing airbag damage detection device according to claim 1 is characterized in that: It also includes a detection connecting rod, a first detection hole is provided on the rubber plate fixing plate, a second detection hole connected to the first detection hole is provided on the airbag fixing plate, and the second detection hole is connected to the interior of the vacuum air bag; the detection connecting rod is a hollow tubular structure, the first end of the detection connecting rod is connected to the interior of the vacuum air bag through the first detection hole and the second detection hole in sequence, and the second end of the detection connecting rod is connected to the pressure measuring device.

4. The novel vacuum pressed airbag damage detection device according to claim 3 is characterized in that: The first end of the detection connecting rod is inserted into the first detection hole and the second detection hole in sequence, and the detection connecting rod is sealed and connected to the first detection hole and the second detection hole respectively through sealing rings.

5. The novel vacuum pressing airbag damage detection device according to claim 3 is characterized in that: The rubber plate fixing plate is also provided with a first inflation hole, which is connected to the air source through an air pressure pipeline; the airbag fixing plate is provided with a second inflation hole connected to the first inflation hole, and the second inflation hole is connected to the interior of the vacuum air bag; during testing, the air source inflates the vacuum air bag at low pressure.

6. The novel vacuum pressed airbag damage detection device according to claim 5 is characterized in that: The first inflation hole and the first detection hole are arranged diagonally, and the second inflation hole and the second detection hole are arranged diagonally.

7. The novel vacuum pressing airbag damage detection device according to claim 1 is characterized in that: The pressure measuring device is a pressure monitoring sensor.

8. The novel vacuum pressing airbag damage detection device according to claim 1 is characterized in that: A recess is provided on the upper surface of the lower hot plate, and the airbag detection plate, the detection cover plate and the sintered iron plate are sequentially arranged in the recess from bottom to top.

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