TWM583938U - Sealing detection device for package bag - Google Patents

Abstract

The invention provides a sealing detecting device for a packaging bag, which mainly comprises at least one mouth unit, a detecting unit and a processor. The sealing unit is used to form a mouth on a package, and the detecting unit is used to detect the sealing of the package. The detecting unit comprises a transmitting unit and a receiving unit, wherein the transmitting unit is configured to project an ultrasonic signal to the sealing portion, wherein part of the ultrasonic signal penetrates the sealing and forms an ultrasonic detecting signal. The detecting unit receives the ultrasonic detecting signal and transmits the ultrasonic detecting signal to the processor. The processor judges whether the sealing of the packaging bag is complete according to the amplitude of the ultrasonic detecting signal, and can quickly and accurately complete the sealing detection of the packaging bag.

Description

Packaging bag sealing device

The invention relates to a sealing detecting device for a packaging bag, in particular to a detecting device capable of detecting a sealing of an opaque packaging bag.

Packaging refers to the protective layer and decoration on the outside of the object. Different objects have different packaging methods and materials. In the manufacturing process of electronic products, after completing a certain process step, it is often necessary to move the electronic semi-finished product to another production line or another factory, and proceed to the next stage of the process.

In the case of a printed circuit board, when the printed circuit board is moved to the next production line or factory, the printed circuit board is usually packaged and then transported to improve the yield of the product.

If the sealing of the packaging bag is incomplete, the external air may enter the packaging bag from the defective portion of the sealing and contact with the packaged object in the packaging bag, so that the packaged object is oxidized or corroded. Therefore, after the sealing of the packaging bag is completed, it is necessary to further check whether the sealing of the packaging bag is complete.

It is generally possible to see the seal through the naked eye and initially determine whether the seal is complete, but the accuracy of this test method is very low, especially when the package is made of opaque material. Another method of detection is to apply a color liquid to the seal of the package. If the seal of the package is incomplete, liquid leakage may occur, thereby determining whether the seal of the package is complete. However, this detection method needs to wait for a period of time to determine whether the sealing is complete, and therefore has a problem of poor detection efficiency.

One of the objects of the present invention is to provide a sealing detecting device for a packaging bag, which mainly detects the sealing of the packaging bag through ultrasonic waves, and is particularly suitable for detecting the sealing of the opaque packaging bag, for example, for detecting the sealing of the aluminum foil bag. The sealing detecting device of the present invention is detected in a fully automatic manner, and the sealing detection of the packaging bag can be completed quickly and prepared.

One of the objects of the present invention is to provide a sealing detecting device for a packaging bag, comprising an adjacent port unit and a detecting unit. When the sealing unit forms a seal on the packaging bag, the sealing can be detected immediately by an adjacent detecting unit.

One of the objects of the present invention is to provide a sealing detecting device for a packaging bag, wherein the driving unit is connected and drives the detecting unit to be displaced along the bag mouth, and the processor is electrically connected to the detecting unit and the driving unit. The processor may receive the displacement data of the detecting unit by the driving unit, and receive the ultrasonic detecting signal by the detecting unit, thereby obtaining an incomplete area of the packaging bag.

In order to achieve the above object, the present invention provides a sealing detecting device for a packaging bag, comprising: at least one mouth unit for forming a mouth on the packaging bag; a detecting unit adjacent to the sealing unit, and comprising: a launching unit, For emitting an ultrasonic signal, wherein the ultrasonic signal is projected on the sealing of the packaging bag and penetrates the sealing or is reflected by the sealing to generate an ultrasonic detecting signal; a receiving unit is configured to receive the ultrasonic detecting signal; and The processor is electrically connected to the receiving unit, and the receiving unit receives the ultrasonic detecting signal, and determines whether the sealing of the packaging bag is complete according to the ultrasonic detecting signal.

The sealing detecting device, wherein the processor determines whether the sealing of the packaging bag is complete according to the amplitude or intensity of the ultrasonic detecting signal.

The sealing detecting device, wherein the processor compares the amplitude of the ultrasonic detecting signal with an amplitude threshold, and when the amplitude of the ultrasonic detecting signal is greater than the amplitude threshold, it is determined that the sealing is complete, if the amplitude of the ultrasonic detecting signal is smaller than the amplitude threshold The value determines that the seal is incomplete.

The sealing detecting device comprises a driving unit connected to the detecting unit, and drives the detecting unit to be displaced along the sealing of the packaging bag.

In the sealing detecting device, the processor is electrically connected to the driving unit, and the driving unit receives a driving displacement signal, and the displacement or position of the detecting unit is obtained by driving the displacement signal, so that the processor detects the signal and the driving displacement by the ultrasonic wave. The signal is known to the area where the closure of the package is incomplete.

The sealing detecting device, wherein the transmitting unit and the receiving unit are respectively located on different surfaces of the sealing of the packaging bag, and the receiving unit receives the ultrasonic detecting signal penetrating the sealing.

The sealing detecting device, wherein the transmitting unit and the receiving unit are respectively located on the same surface of the sealing of the packaging bag, and the receiving unit receives the ultrasonic detecting signal reflected or scattered by the sealing.

The sealing detecting device comprises a carrying unit for carrying the packaging bag, and driving the sealing of the carrying bag to be displaced in the sealing unit and the detecting unit.

The sealing detecting device, wherein the surface of the carrying unit is provided with at least one adsorption hole for forming a negative pressure and adsorbing the packaging bag.

Please refer to FIG. 1 , which is a perspective view of an embodiment of a sealing detecting device for a packaging bag of the present invention. As shown in the figure, the sealing detecting device 10 of the packaging bag of the present invention is mainly used for sealing and detecting a packaging bag 12, and is particularly suitable for detecting an opaque packaging bag 12, such as an aluminum foil bag, and includes A port unit 11, a detecting unit 13, a driving unit 15, and a processor 17.

The sealing unit 11 includes an upper sealing unit 111 and a lower sealing unit 113, wherein the upper sealing unit 111 faces the lower sealing unit 113 and is used to form a sealing opening 121 between the two packages. Specifically, the upper sealing unit 111 can be connected to a driving unit 115. For example, the driving unit 115 can be a pneumatic cylinder, and the upper sealing unit 111 is driven away from or close to the lower sealing unit 113 through the driving unit 115. The upper sealing unit 111 and the lower sealing unit 113 can pressurize and heat the packaging bag 12 between the two, and form a sealing 121 on the packaging bag 12.

The detecting unit 13 includes a transmitting unit 131 and a receiving unit 133. The transmitting unit 131 is configured to generate an ultrasonic signal, and the receiving unit 133 is configured to receive an ultrasonic signal. In the present embodiment, the transmitting unit 131 and the receiving unit 133 are respectively located on different surfaces of the sealing 121 of the packaging bag 12, wherein the transmitting unit 131 faces the receiving unit 133 and is used to detect the sealing 121 of the packaging bag 12 therebetween. .

In an embodiment of the present invention, as shown in FIG. 2 and FIG. 3, the transmitting unit 131 is located above the packaging bag 12, and projects an generated ultrasonic signal 141 to the sealing 121 of the packaging bag 12, and a part of the ultrasonic wave. The signal 141 will penetrate the seal 121 of the package 12. Specifically, the ultrasonic signal 141 undergoes energy attenuation during the penetration of the sealing 121 of the packaging bag 12, so that the amplitude of the ultrasonic signal 141 is lowered, wherein the ultrasonic signal 141 penetrating the sealing 121 of the packaging bag 12 can be Defined as an ultrasonic detection signal 143.

The receiving unit 133 is located below the packaging bag 12, receives the ultrasonic detecting signal 143 penetrating the sealing 121 of the packaging bag 12, and determines whether the sealing 121 of the packaging bag 12 is intact through the ultrasonic detecting signal 143. In the present embodiment, the transmitting unit 131 and the receiving unit 133 are respectively located above and below the packaging bag 12, but in actual application, the transmitting unit 131 and the receiving unit 133 may also be located below and above the packaging bag 12, respectively.

Specifically, the principle that the sealing unit 11 forms the sealing 121 on the packaging bag 12 is to press and heat the bag bodies on both sides of the packaging bag 12 so that the bag bodies on both sides are closely attached. If the bags on both sides of the package 12 are not tightly fitted, there will be a gap between the bags on both sides of the cover 121, and the structure of the seal 121 on the package 12 may be incomplete, so that the package 12 cannot be formed. A confined space. For example, when the structure of the closure 121 is incomplete, the package 12 will not be able to form a vacuum package.

In the process of penetrating the seal 121 of the package 12, the ultrasonic signal 141 may have different degrees of attenuation due to the different materials penetrated. Specifically, when the ultrasonic signal 141 penetrates the complete and incomplete seal 121, there is a gap and/or air in the seal 121, so that the ultrasonic signal 141 is attenuated to different degrees and formed with different strengths and/or The amplitude of the ultrasonic detection signal 143.

In the present embodiment, the strength and/or amplitude of the ultrasonic detecting signal 143 received by the receiving unit 133 can be used to determine whether the sealing 121 on the packaging bag 12 is complete, so as to complete the detection of the sealing 121 of the packaging bag 12. Specifically, when the structure of the sealing 121 is incomplete and there is a gap, the ultrasonic signal 141 will have a large amplitude attenuation during the process of penetrating the sealing 121.

In practical applications, the receiving unit 133 can be electrically connected to a processor 17, such as a computer, a microprocessor (CPU), etc., wherein the processor 17 can receive the ultrasonic detecting signal 143 by the receiving unit 133 and detect the signal 143 according to the ultrasonic wave. It is determined whether the seal 121 of the package 12 is intact, for example, based on the amplitude or intensity of the ultrasonic detection signal 143.

Specifically, the processor 17 can store or set an amplitude threshold and compare the amplitude and amplitude thresholds of the ultrasonic detection signal 143. In an embodiment of the present invention, when the amplitude of the ultrasonic detecting signal 143 is greater than the amplitude threshold, the processor 17 determines that the sealing 121 of the package 12 is intact. On the other hand, when the amplitude of the ultrasonic detecting signal 143 is smaller than the amplitude threshold 143, the processor 17 determines that the sealing 121 of the package 12 is incomplete.

Since the ultrasonic signal can penetrate the opaque material, the sealing detecting device 10 of the present invention is also suitable for detecting the sealing 121 of the opaque packaging bag 12. In general, when the package 12 is an aluminum foil bag, the operator will not be able to visually judge whether the seal 121 of the aluminum foil bag is intact. In contrast, the sealing detecting device 10 of the present invention can still detect the sealing 121 of the aluminum foil bag through the transmitting and receiving ultrasonic signals.

In addition, the sealing 121 of the general packaging bag 12 is generally elongated, and the detecting unit 13 may not completely cover the entire sealing 121. For this purpose, the detecting unit 13 can be connected to a driving unit 15 . For example, the driving unit 15 can be a pneumatic cylinder or a stepping motor, and the detecting unit 13 can be displaced along the sealing 121 by the driving unit 15 to detect the sealing 121 of the packaging bag 12 . , as shown in Figure 1 and Figure 3. Of course, if the detecting unit 13 can completely cover the entire sealing 121, it may be unnecessary to provide the driving unit 15.

In an embodiment of the present invention, the processor 17 can also be electrically connected to the driving unit 15, and the driving unit 15 receives a driving displacement signal, and knows the position of the detecting unit 13 according to the driving displacement signal. Specifically, when the driving unit 15 is a pneumatic cylinder, the driving displacement signal may be a length in which the pneumatic cylinder extends. The pneumatic cylinder connects and drives the detecting unit 13, so that the length of the air cylinder extending is related to the displacement and position of the detecting unit 13. In this way, the processor 17 can know the displacement and/or position of the detecting unit 13 via the driving displacement signal, and know the area of the sealing 121 detected by the detecting unit 13.

As can be seen from the above, the processor 17 can receive the ultrasonic detecting signal 143 by the detecting unit 13 and know whether the detected sealing 143 is complete. In addition, the processor 17 can also receive the driving displacement signal from the driving unit 15 and know the area of the sealing 121 detected by the detecting unit 13. The processor 17 can further combine the ultrasonic detecting signal 143 and the driving displacement signal to know an incomplete area of the sealing 121 of the packaging bag 12.

In an embodiment of the present invention, the sealing unit 11 is adjacent to the detecting unit 13, and immediately after the sealing unit 11 forms the sealing 121 in the packaging bag 11, the sealing member 121 of the packaging bag 12 is detected through the detecting unit 13.

The sealing device 10 can also include a carrying unit 19, wherein the carrying unit 19 is used to carry the packaging bag 12 and drive the packaging bag 12 to be displaced. Specifically, the carrying unit 19 can be a plate body, and at least one adsorption hole 191 is disposed on the surface of the plate body, wherein the adsorption hole 191 can be connected to a pump, and the package bag 12 located on the carrying unit 19 is adsorbed by the generated negative pressure.

In addition, the carrying unit 19 can also be connected to a slide rail and a driving unit (not shown), and the carrying unit 19 and the packaging bag 12 are displaced at the sealing unit 11 and the detecting unit 13. Specifically, the carrying unit 19 can drive the packaging bag 12 to the sealing unit 11 and form a sealing 121 on the packaging bag 12 with the sealing unit 11. Then, the carrying unit 19 can drive the packaging bag 12 away from the sealing unit 11, displace the sealing 121 of the packaging bag 12 to the detecting path of the detecting unit 13 or the detecting unit 13, and detect whether the sealing 121 of the packaging bag 12 is intact by the detecting unit 13.

Please refer to FIG. 4 , which is a perspective view of still another embodiment of the sealing detecting device of the packaging bag of the present invention. As shown in the figure, the sealing detecting device 20 of the packaging bag of the present invention is mainly used for sealing and detecting a packaging bag 12, and comprises a mouth unit 11, a detecting unit 23, a driving unit 15 and a processing. 17.

The sealing detecting device 20 of the present embodiment is similar to the configuration of FIG. 1, with the main difference being that the detecting unit 23 of the sealing detecting device 20 of the present embodiment is located on the same surface of the packaging bag 12.

As shown in FIG. 4 and FIG. 5, the detecting unit 23 includes a transmitting unit 231 and a receiving unit 233, wherein the transmitting unit 231 and the receiving unit 233 are both located on the same surface of the packaging bag 12, for example, on the upper surface or the lower surface of the packaging bag 12. surface. In contrast, the transmitting unit 131 and the receiving unit 133 of FIG. 1 are respectively located on different surfaces of the packaging bag 12.

The transmitting unit 231 is configured to generate an ultrasonic signal 241 and project the ultrasonic signal 241 to the sealing 121 of the packaging bag 12. Part of the ultrasonic signal 241 will penetrate the seal of the package 12, and part of the ultrasonic signal 241 will be reflected or scattered by the seal 121 of the package 12, wherein the ultrasonic signal reflected or scattered by the seal 121 of the package 12 The detection unit 233 can be used to receive the ultrasonic detection signal 243 reflected or scattered by the sealing 121.

When the ultrasonic signal 241 is reflected by the seal 121 of the package 12, it may be differently attenuated due to the difference in material and/or structure. Thereby, the processor 17 can be determined by the ultrasonic detecting signal 243 received by the detecting unit 233 to determine whether the sealing 121 of the packaging bag 12 is intact. Specifically, the processor 17 can determine whether the seal 12 of the package 12 is intact by the amplitude, the receiving angle, and/or the receiving time of the ultrasonic detecting signal 243.

The above description is only one of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, that is, the changes in shape, structure, features and spirit as described in the scope of the present patent application are Modifications are intended to be included in the scope of the present patent application.

10‧‧‧ Sealing detection device  11‧‧‧Seal unit  111‧‧‧Upper sealing unit  113‧‧‧ Lower sealing unit  115‧‧‧Drive unit  12‧‧‧Package bags  121‧‧‧ Seal  13‧‧‧Detection unit  131‧‧‧Emission unit  133‧‧‧ receiving unit  141‧‧‧Supersonic signal  143‧‧‧Supersonic detection signal  15‧‧‧Drive unit  17‧‧‧Processor  19‧‧‧ Carrying unit  191‧‧‧Adsorption holes  20‧‧‧ Sealing detection device  23‧‧‧Detection unit  231‧‧‧ Launch unit  233‧‧‧ receiving unit  

Fig. 1 is a perspective view showing an embodiment of a sealing detecting device for a packaging bag of the present invention.

Fig. 2 is a block diagram showing an embodiment of a detecting unit of the sealing detecting device of the packaging bag of the present invention.

Fig. 3 is a perspective view showing an embodiment of a sealing detecting device for the packaging bag of the present invention.

Fig. 4 is a perspective view showing still another embodiment of the sealing detecting device of the packaging bag of the present invention.

Fig. 5 is a block diagram showing still another embodiment of the detecting unit of the sealing detecting device of the packaging bag of the present invention.

Claims (9)

A sealing detecting device for a packaging bag, comprising: at least one mouth unit for forming a mouth on the packaging bag; a detecting unit adjacent to the sealing unit, and comprising: a transmitting unit for emitting an ultrasonic wave a signal, wherein the ultrasonic signal is projected on the seal of the package and penetrates or is reflected by the seal to generate an ultrasonic detecting signal; a receiving unit for receiving the ultrasonic detecting signal; and a processing The receiving unit is electrically connected to the receiving unit, and the receiving unit receives the ultrasonic detecting signal, and determines whether the sealing of the packaging bag is complete according to the ultrasonic detecting signal. The sealing detecting device according to claim 1, wherein the processor determines whether the sealing of the packaging bag is complete according to the amplitude or intensity of the ultrasonic detecting signal. The sealing detecting device according to claim 2, wherein the processor compares an amplitude of the ultrasonic detecting signal with an amplitude threshold, and when the amplitude of the ultrasonic detecting signal is greater than the amplitude threshold, determining the sealing Completely, if the amplitude of the ultrasonic detecting signal is less than the amplitude threshold, it is determined that the sealing is incomplete. The sealing detecting device according to claim 1, comprising a driving unit connected to the detecting unit and driving the detecting unit to be displaced along a sealing of the packaging bag. The sealing detection device of claim 4, wherein the processor is electrically connected to the driving unit, and the driving unit receives a driving displacement signal, and the displacement or position of the detecting unit is obtained by the driving displacement signal. The processor is configured to obtain an incomplete region of the package by the ultrasonic detecting signal and the driving displacement signal. The sealing detecting device of claim 1, wherein the transmitting unit and the receiving unit are respectively located on different surfaces of the sealing of the packaging bag, and the receiving unit receives the ultrasonic detecting signal penetrating the sealing. The sealing detecting device of claim 1, wherein the transmitting unit and the receiving unit are respectively located on the same surface of the sealing of the packaging bag, and the receiving unit receives the ultrasonic detection reflected or scattered by the sealing member. Signal. The sealing detecting device of claim 1, comprising a carrying unit for carrying the packaging bag, and driving the sealing of the carrying bag to be displaced at the sealing unit and the detecting unit. The sealing detecting device according to claim 1, wherein the surface of the carrying unit is provided with at least one adsorption hole for forming a negative pressure and adsorbing the packaging bag.