TWI792382B - Piercing device - Google Patents

Abstract

The present invention discloses a method for cutting a vacuum packaging and a piercing device. The method mainly uses the piercing device to pierce at least one hole in a vacuum packaging bag of the vacuum packaging to make the outside air immediately enter the vacuum packaging bag through the hole, so that the vacuum packaging bag, which was originally in a tightly sealed status become loose, and then the vacuum packaging bag can be cut manually or by an automatic cutting device.

Description

lancing device

The present invention is related to the technology of how to cut a vacuum packaging body, which includes a vacuum packaging bag and an article packed in the vacuum packaging bag, such as a vacuum packaging bag for wafer cassettes and the wafer inside. round box.

The semiconductor industry often uses wafer boxes to load wafers, such as the front opening unified pod (FOUP) to protect the wafers during transportation in the factory, and the front opening shipping box (FOSB ) loads the wafers to protect the wafers during transport between fabs. During the transportation process, in order to avoid the fine dust from the external environment entering the interior and causing pollution and affecting the yield rate, it is usually packaged in a special vacuum packaging bag by vacuum packaging to form a vacuum packaging body. When needed, the special vacuum packaging bag is unpacked to take out the wafer box. At present, the special vacuum packaging bag has a variety of options such as aluminum bag, antistatic bag, plastic bag, etc. The characteristics are different and can be determined according to the needs. For example, the plastic bag used in the 12-inch wafer box The plastic bag used for the round box is relatively soft. In addition, there are also cases where two-layer packaging is used to package the wafer box.

A vacuum packaging body 9 shown in FIG. 9 includes a vacuum packaging bag 91 and an article 92 packed in the vacuum packaging bag 91. The article 92 is a wafer box, such as the above-mentioned front-opening universal wafer box ( FOUP), as for the vacuum packaging bag 91, it is a special packaging bag for the wafer box.

FIG. 10 shows that the vacuum packaging bag 91 includes a sealing portion 910 a and a sealing bottom 910 b that is originally in a sealed state. After the sealing portion 910a is unfolded, an opening is formed. mouth 910, the article 92 is pushed into the vacuum packaging bag 91 from the opening 910a, and then, as shown in Figure 11, a pair of thermal pressing heads 93 of a sealing device (not shown) are thermally pressed to be a closed state of the sealing portion 910a to seal the sealing portion 910a. Finally, the sealing portion 910a is folded and glued with one or more adhesive tapes (not shown in the figure). At this time, as shown in FIG. 9 , the entire package 9 is roughly in the shape of a square. Wherein, in order to avoid pollution and keep dry, a vacuum pump (not shown in the figure) is also used to extract the air in the vacuum packaging bag 91 before heat pressing the sealing portion 910a, and then heat pressing the sealing portion 910a. Ideally, the inside of the vacuum packaging bag 91 is in a vacuum-sealed state at this time, so it can ensure that the item 92 (such as the above-mentioned wafer box) is not polluted.

Since each inner surface of the vacuum packaging bag 91 will shrink inwardly because the air is drawn away, and therefore be close to the article 92, if the vacuum packaging bag 91 is directly cut for taking out the article 92, it may be damaged. The article 92 of the vacuum packaging bag 91 is cut together, which needs to be improved urgently.

The invention provides a method for cutting a vacuum packaging body, the vacuum packaging body includes a vacuum packaging bag and an article packed in the vacuum packaging bag in a vacuum packaging manner. The method includes: first piercing the vacuum packaging bag of the vacuum packaging body, and then cutting the vacuum packaging bag of the vacuum packaging body.

In one embodiment, the above method of the present invention further includes: after puncturing the vacuum packaging bag and before cutting the vacuum packaging bag, performing a gas adjustment operation, the gas adjustment operation includes using a hollow needle to penetrate the vacuum packaging bag, and the gas in the vacuum packaging bag is drawn out or gas is input into the vacuum packaging bag through the hollow needle tube.

The present invention also provides a piercing device, which includes a carrying platform for carrying the vacuum package and a first piercing device. The first piercing device faces a first side of the carrying platform, and includes a first telescopic drive device and a first bayonet connected to the first telescopic drive device, and the first bayonet can be positioned on the telescopic drive device Driven by Advance from a first original position to a first puncture position and retreat from the first puncture position to the first original position. Wherein, the first bayonet pierces the vacuum package at the first piercing position, so that a hole is formed on a first side of the vacuum package of the vacuum package. Preferably, the aforementioned carrying platform may include a conveyor belt and a positioning portion. The conveyor belt is used to carry the vacuum package and transport it from an input side to an output side. The positioning part is located on the output side of the conveyor belt, and is used to block the vacuum package at the output side, and when it is detected that the vacuum package reaches a certain position, the conveyor belt is suspended and the first The piercing device is advanced to this first piercing position.

In one embodiment, the puncturing device of the present invention further includes a second puncturing device facing a second side of the carrying platform, the first and second puncturing devices face each other, and the carrying platform is located at Between the first and second puncturing devices, and the second puncturing device includes a second telescopic drive device and a second bayonet connected to the second telescopic drive device, the second bayonet can be positioned between the telescopic drive device Under the driving, it advances from a second original position to a second puncture position on the other side of the vacuum packaging bag that punctures the packaging body, and retreats from the second puncture position to the second original position. Preferably, the aforementioned carrying platform may include the aforementioned conveyor belt and a positioning portion. The conveyor belt. It is used to carry the vacuum packaging body and transport it from an input side to an output side. The positioning part is located on the output side of the conveyor belt, and is used to block the vacuum package at the output side, and when it is detected that the vacuum package reaches a certain position, the conveyor belt is suspended and the first The second piercing device advances to the first and second piercing positions respectively.

In one embodiment, the first puncture device of the above-mentioned puncture device of the present invention includes a first positioning block connected to the first telescopic drive device, the first bayonet is arranged on the first positioning block, and can be connected with the first positioning block. The first positioning block advances and retreats synchronously, the second piercing device includes a second positioning block connected to the second retractable driving device, the second bayonet is arranged on the second positioning block, and can be connected with the second positioning block Advance and retreat synchronously, when the first and second bayonets advance together to reach the respective first and second piercing positions, move the first positioning block synchronously with the first bayonet to reach a first positioning position, and follow the second bayonet synchronously Moving the second positioning block to a second positioning position, so that the vacuum packaging body at the fixed point is just located at the center of the conveyor belt in the width direction.

Compared with the prior art, the present invention first punctures the vacuum packaging bag to make it loose, and then cuts the vacuum packaging bag, so that the probability of cutting the article while cutting the vacuum packaging bag can be reduced .

a, b, a': steps

9: Vacuum package

91: Vacuum bag

911: Bottom

912a~912e: linear incision

913: opening

92: Items

921: handle

1: carrying platform

11: Conveyor belt

12: Detection device

120: Positioning department

13: guide frame

2: The first piercing device

21: The first telescopic drive device

22: First bayonet

22a: Spikes

23: The first positioning block

26: Hollow needle tube

3: Second piercing device

31: The second telescopic driving device

32: Second bayonet

32a: Spikes

33: The second positioning block

34: Pressure reducing valve

G1, G2: void area

Figure 1 shows a schematic flow diagram of two methods of the present invention.

Fig. 2 shows a perspective view of a preferred embodiment of a piercing device of the present invention.

Figure 3 shows a top view of the preferred embodiment of the lancing device of the present invention.

Figure 4 and Figure 5 show the action diagram of the preferred embodiment of the piercing device of the present invention

FIG. 6 shows multiple linear incisions 912a~e cut out on a vacuum package 9 by the method of the present invention.

FIG. 7 shows an opening 913 formed by the aforementioned linear cuts 912a-e.

FIG. 8 shows a schematic diagram of the action of a hollow needle 26 used in the method of the present invention.

FIG. 9 shows a schematic perspective view of the vacuum package 9 .

FIG. 10 shows a schematic perspective view of a vacuum packaging bag 91 and an item 92 of the vacuum packaging body 9 .

FIG. 11 shows a schematic perspective view of a pair of thermal pressing heads 93 thermally pressing the vacuum packaging bag 91 .

Fig. 1 shows a schematic flow chart of a preferred embodiment of the method of the present invention, the method is to cut a vacuum package, in this embodiment, take the vacuum package 9 shown in Fig. 9 as an example, the vacuum package The body 9 includes the above-mentioned vacuum packaging bag 91 and the above-mentioned articles 92 packaged in the vacuum packaging bag 91 in a vacuum packaging manner. The article 92 may be the above-mentioned wafer cassette, and the vacuum packaging bag 91 may be the above-mentioned special packaging bag for wafer cassettes, but not limited thereto.

As shown in Figure 1(A), the method includes step a of puncturing the vacuum The vacuum packaging bag 91 of the packaging body 9, and the step b of cutting the vacuum packaging bag 91 of the vacuum packaging body 9. In this embodiment, step a can be punctured by an operator using a sharp tool (such as a needle or an awl) to puncture the vacuum packaging bag 91, or choose a puncturing device shown in FIG. 2 to automatically puncture the vacuum Packaging bag 91. This step b can cut the vacuum packaging bag 91 by operating a blade by the operator or another person, or cut the vacuum packaging bag 91 by an automatic cutting device (not shown), so as to cut the vacuum packaging bag 91 in the vacuum At least one linear cut is formed on the packaging bag 91 .

Once the vacuum packaging bag 91 is punctured and one or more holes appear, its vacuum-tight state will be destroyed, and the outside air will quickly enter the vacuum packaging bag 91 from the one or more holes, To make the vacuum packaging bag 91 become loose and no longer close to the article 92, so when the vacuum packaging bag 91 is cut with a blade, it is less likely to be cut into the vacuum packaging bag 91. item 92, thereby reducing the chance of cutting the item 92.

As shown in FIG. 2 , the piercing device includes a platform 1 for carrying the vacuum package 9 and a first piercing device 2 . In this embodiment, the first piercing device 2 faces a first side of the carrying platform 1 (for example, the left side in the figure), and includes a first telescopic drive device 21 and a A first bayonet 22 of the device 21. The first telescopic driving device 21 can be a biaxial pneumatic cylinder. The first bayonet 22 can advance from a first home position shown in Figure 3 and Figure 4 to a first puncturing position shown in Figure 5 under the drive of the first retractable drive device 21 and from the first stabbing position The broken position retreats to the first original position. The first bayonet 22 pierces the vacuum package 9 at the first piercing position, so that at least one Hole, at this moment, outside air immediately enters in this vacuum packaging bag 91 from this hole, so that this vacuum packaging bag 91 becomes loose. In this embodiment, the bayonet 22 has two sharp thorns 22a, so two holes can be pierced on the first side of the vacuum packaging bag 91 to increase the path for air to enter the vacuum packaging bag 91, thereby Accelerate the loosening speed of the vacuum packaging bag 91, and improve its slackness.

Preferably, the piercing device also includes a second piercing device 3, in this embodiment, the second piercing device 3 faces a second side of the carrying platform 1 (for example As shown on the right side in the figure), the carrying platform 1 is located between the first piercing device 2 and the second piercing device 3 , and the first piercing device 2 and the second piercing device 3 are facing each other. Wherein, the second piercing device 3 includes a second telescopic driving device 31 and a second bayonet 32 connected to the second telescopic driving device 31 . The second telescopic driving device 31 can be a biaxial pneumatic cylinder. The second bayonet 32 can advance from a second home position shown in Fig. 3 and Fig. 4 to a second piercing position shown in Fig. The broken position retreats to the second original position. The second bayonet 32 pierces the vacuum package 9 at the second broken position, so that at least one break is formed on a second side (such as the right side in the figure) of the vacuum bag 91 of the vacuum package 9. Hole. In this embodiment, the bayonet 32 has two spikes 32 a, so it can pierce two holes on the second side of the vacuum packaging bag 91 . As mentioned above, the more holes are formed on the vacuum packaging bag 91 , the faster the vacuum packaging bag 91 becomes loose, and the degree of its relaxation becomes higher accordingly.

Preferably, the carrying platform 1 includes a conveyor belt 11 and a positioning portion 120 . As shown in FIG. 3 , the conveyor belt 11 can carry the vacuum packaging body 9 and transport it from an input side to an output side. The positioning portion 120 is located on the output side of the conveyor belt 11 for blocking the vacuum packaging body 9 at the output side.

In this embodiment, when the two detection devices 12 of the positioning part 120 are touched by the vacuum package 9, it means that the vacuum package 9 has been transported to a predetermined position by the conveyor belt 11. At this time, These two detection devices 12 will send a signal to a driving mechanism (not shown in the figure) of this conveyor belt 11, so that this driving mechanism suspends driving this conveyor belt 11, and this conveyor belt 11 stops conveying at this moment. At the same time, the signal is also sent to the first piercing device 2 and/or the second piercing device 3, so that they start the above-mentioned action of piercing the vacuum packaging bag 91 . In short, when the positioning unit 120 detects that the vacuum packaging body 9 has reached the fixed position, it stops the conveying belt 11 from conveying, and makes the first piercing device 2 advance to the first piercing position, and /or the second piercing device 3 advances to the second piercing position.

In this embodiment, the first puncturing device 2 further includes a first positioning block 23 connected to the first retractable driving device 21, the first bayonet 22 is positioned on the first above the positioning block 23, and can advance and retreat synchronously with the first positioning block 23. In addition, the second piercing device 3 includes a second positioning block 33 connected to the second retractable driving device 31 , the second bayonet 32 is located above the second positioning block 33 and can be synchronized with the second positioning block 33 advance and retreat. When the first and second bayonets 22 and 32 advance together to reach the respective first and second piercing positions, the first positioning block 23 is moved synchronously with the first bayonet 22 to reach a first positioning position, and then the second The bayonet 32 moves the second positioning block 33 synchronously to a second positioning position. At this time, as shown in FIG. 5 , the vacuum packaging body 9 at the fixed point is just located at the center of the conveyor belt 11 in the width direction. In more detail, if the vacuum packaging body 9 at the fixed point is slightly to the right, it will be pushed to the left by the second positioning block 33; otherwise, if it is slightly to the left, it will be pushed to the left by the first positioning block 23 Move to the right, in any case, as long as the first and second positioning blocks 23 and 33 reach the first and second positioning positions respectively, the vacuum packaging body 9 will just be located at the center.

Preferably, the second puncturing device 3 further includes a pressure reducing valve 34 connected to the second telescopic driving device 31 , the pressure reducing valve 34 can be adjusted for the thrust of the second telescopic driving device 31 Turn down, so that the thrust of the second telescopic driving device 31 is less than the thrust of the first telescopic driving device 21, so that the first positioning block 23 of the first telescopic driving device 21 can be used as a positioning edge to ensure that the The vacuum package 9 can be positioned at the center.

After the first puncturing device 2 and/or the second puncturing device 3 complete the above-mentioned puncturing action, the punctured vacuum packaging body 9 is moved to a bag cutting workstation ( not shown in the figure). In addition, the punctured vacuum packaging body 9 can also be moved to the bag cutting station by a robot arm or other transfer devices. In the bag cutting workstation, as mentioned above, the operation of cutting the vacuum packaging bag 91 can be performed manually or by the automatic cutting device, so as to form at least one linear cut in the vacuum packaging bag 91 .

In this embodiment, as shown in FIG. 6, a plurality of linear incisions 912a to 912e (indicated by dotted lines) can be sequentially cut on a bottom surface 911 of the vacuum packaging bag 91, next to each linear incision 912a to 912e The arrows in the indicate the direction in which they are cut. As shown in FIG. 7, these linear cuts 912a to 912e cause the outer wrapping of the vacuum package 9 The container 91 presents an opening 913 as shown, so that the article 92 is partially exposed. Then, the vacuum packaging bag 91 can be removed from the article 92 manually or by an automatic bag removing device (not shown in the figure). However, the opening 913 is only an example. In fact, only one linear cut can be formed. As for how many linear cuts to be formed on the bottom surface 911 and what kind of opening to form, it can be determined according to actual needs.

Preferably, as shown in FIG. 3 , the carrying platform 1 also includes two guide frames 13 located on the input side of the conveyor belt 11 , and the two guide frames 13 are used to initially guide the vacuum packaging on the conveyor belt 11 . Body 9.

When the first piercing device 2 and/or the second piercing device 3 perform the above piercing action, if it is necessary to avoid piercing the article 92 in the vacuum packaging bag 91, as shown in FIG. Select the gaps G1 and G2 located on the left side and the right side of the vacuum package 9. The gaps G1 and G2 are mainly caused by the left and right handles 921 (see FIG. 10). Further, as is generally known, the article 92 is generally not flat on each side, and therefore, although the air inside the vacuum-packed bag 91 is drawn away, its inner sides will not all be close to each other. The article 92, such as the above-mentioned handle 921 protruding out, will create the above-mentioned void areas G1 and G2, and other protruding elements of the article 92 will also create other void areas. These void areas of the vacuum packaging body 9 form a large enough space between its vacuum packaging bag 91 and the article 92, therefore, one or more of these void areas can be selected to allow the first piercing device 2 to And/or the second piercing device 3 punctures to avoid stabbing the article 92.

After the vacuum packaging bag 91 is punctured, it should ideally present an appropriate degree of tightness and facilitate subsequent cutting of the vacuum packaging bag 91. However, it may become too loose or still not loose enough (this is related to the vacuum packaging). The degree to which the air in the bag 91 is drawn away is related to its material), so as to affect the efficiency and yield rate of cutting the vacuum packaging bag 91. Therefore, as shown in FIG. 1(B), it can be considered that before the step b, a gas adjustment operation of step a' is performed (but this is not necessary), and the gas adjustment operation includes using a hollow needle tube 26 (see FIG. 8 ) pierces the vacuum packaging bag 91, and extracts the gas in the vacuum packaging bag 91 through the hollow needle tube 26 or enters the gas into the vacuum packaging bag 91, so that the vacuum packaging bag 91 is in a desired elastic state, To facilitate the follow-up to break the vacuum Packing bag 91 is carried out.

In summary, it can be seen that, before the present invention cuts the vacuum packaging bag 91 of the vacuum packaging body 9, it first punctures the vacuum packaging bag 91 so that the vacuum packaging bag 91 becomes loose and no longer tightly bound. The article in the vacuum packaging bag 91 can reduce the probability of cutting the article 92 when the vacuum packaging bag 91 is cut.

a, b, a': steps

Claims (6)

A puncturing device is used to puncture a vacuum packaging bag of a vacuum package, an article of the vacuum package is packed in the vacuum packaging bag, the puncturing device includes: a device for conveying The conveyor belt of the vacuum packaging body is provided with a positioning part to stop the vacuum packaging body at a fixed point; Driving device, a first positioning block connected with the first telescopic driving device and a first bayonet located on the first positioning block, the first telescopic driving device can drive the first positioning block and the first bayonet in the Synchronous movement between a first home position and a first piercing position, wherein, when the first positioning block and the first bayonet move to the first piercing position, the first positioning block pushes against the vacuum package body to the conveyor belt in the center of the width direction, and the first bayonet pierces the vacuum packaging bag; a second piercing device located on the other side of the fixed point position is opposite to the first piercing device , the second piercing device includes a second telescopic drive device, a second positioning block connected to the second telescopic drive device and a second bayonet set on the second positioning block, the second telescopic drive device can driving the second positioning block and the second bayonet to move synchronously between a second original position and a second piercing position, wherein when the second positioning block and the second bayonet move to the second piercing position When, the second positioning block arrives Pushing the vacuum packaging body to the center of the conveyor belt in the width direction, and the second bayonet pierces the vacuum packaging bag; wherein, when the vacuum packaging body reaches the fixed point, the conveyor belt stops conveying, and the second bayonet pierces the vacuum packaging bag; The first and second piercing devices advance to the first and second piercing positions respectively. The piercing device as claimed in claim 1, wherein when the vacuum package reaches the fixed position, the first and second piercing devices advance to the first and second piercing positions simultaneously. The puncturing device as claimed in claim 2, wherein the second telescoping driving device is provided with a pressure reducing valve to make the thrust of the second telescopic driving device smaller than the thrust of the first telescopic driving device. The piercing device as claimed in claim 1, wherein a detection device is provided on the positioning part to detect whether the vacuum package reaches the fixed point. The piercing device as claimed in claim 1, wherein, two sides of the conveyor belt are respectively provided with a guide frame for guiding the vacuum package into the conveyor belt. The piercing device as claimed in claim 1, further comprising a hollow needle tube, used for piercing the vacuum packaging bag and injecting or extracting gas after the first and second piercing devices puncture the vacuum packaging bag.

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