TWI846348B - Cutting tool with sucker - Google Patents

Abstract

A cutting tool includes an assembling base, a sucker, a blade and a pneumatic base. The assembling base includes a port connected with the pneumatic base. The port has a channel opening formed on a top surface of the assembling base. The sucker with a working surface is detachably assembled on the top surface of the assembling base. A slot which is not in communication with the channel opening and at least a gas channel which is in communication with the channel opening are disposed on the working surface. The sucker is composed of a first assembly and a second assembly connected with each other. The blade is received in the slot with a bottom end engaged with the slot and is clamped by the first and second assembly.

Description

Nozzle knife

The invention relates to a device for cutting open bags, in particular a nozzle knife.

In recent years, the semiconductor industry has developed and the demand for chips is high. Therefore, the equipment and efficiency of the transportation process of wafers, the raw materials of chips, have also been paid attention to. The industry has developed devices for transporting wafers, such as front-opening universal wafer boxes (FOUP) and front-opening wafer transport boxes (FOSB). In order to prevent the intrusion of impurities during transportation, the wafer box must be wrapped in a packaging bag and evacuated. When transported to the processing plant, the packaging bag must be opened first. However, the packaging bag is tightly attached to the wafer box due to the vacuum. Cutting it directly with a blade will cut the wafer box, so a device must be developed to avoid the above situation. The known bag cutting device can refer to the invention patent No. I774455.

To solve the above-mentioned problems, the present invention provides a nozzle knife, which includes: a pneumatic base; a mounting base, which is provided with a connection port for connecting to the pneumatic base, and the connection port forms a channel opening on a top surface of the mounting base; a nozzle, which is detachably fixed to the top surface of the mounting base, and the nozzle includes a working surface, and the working surface is provided with at least one air channel connected to the channel opening, and a receiving groove not connected to the channel opening, wherein the nozzle is composed of a first component and a second component that can be matched; a blade arranged in the receiving groove, which is tightly clamped by the first component and the second component, and the bottom end of the blade is against the bottom of the receiving groove, and the tip of the blade extends out of the working surface.

Preferably, the receiving groove is formed by being recessed to a depth from the side of the first component facing the second component, and the side of the second component facing the receiving groove is a plane.

Furthermore, the thickness of the blade is greater than the depth of the receiving groove, so that the second component is tightly against the blade, and a gap is formed between the first component and the second component.

Preferably, the first component and the second component are locked together with a plurality of screws.

Preferably, a filter covering the channel opening is provided between the mounting base and the nozzle.

Preferably, the mounting base is further provided with at least one quick-release component, and the pneumatic base is provided with at least one docking component that can be combined with the quick-release component.

1: Install the base

10: Channel

11: Channel opening

12: Filter

2: Suction nozzle

200: Square bottom block

201: Pillar

202: Ring Wall

203: Working surface

21: First component

211: First airway

212: First side

213: Storage tank

214: Background

22: Second component

221: Second airway

222: Second side

23: Gap

3: Blade

31: Blade tip

4: Pneumatic base

41: Groove

51: Quick-release components

52: Docking components

61: Screws

62: Screws

Figure 1 is a three-dimensional schematic diagram of the present invention; Figures 2 and 3 are three-dimensional exploded schematic diagrams of the present invention; Figure 4 is a top view schematic diagram of the present invention; Figure 5 is a cross-sectional schematic diagram of the present invention.

Please refer to Figures 1 to 3, which show the nozzle blade provided by the present invention, which includes a mounting base 1, a nozzle 2, a blade 3 and a pneumatic base 4. The mounting base 1 is assembled on the pneumatic base 4, and the pneumatic base 4 is used to extract air and generate suction. In this embodiment, the mounting base 1 is provided with two quick-release components 51. On the other hand, the pneumatic base 4 is provided with two grooves 41, and the grooves 41 are provided with two docking components 52 that can be combined with the quick-release components 51. According to this, the mounting base 1 can be combined with the pneumatic base 4, and can also be easily disassembled. The above-mentioned quick-release components 51 and docking components 52 implement the plug-in and unplug functions in a pneumatic manner, which belongs to the known technology and will not be described in detail.

As mentioned above, the mounting base 1 is connected to the pneumatic base 4 via a connection port (not shown in the figure), wherein a channel 10 is provided inside the mounting base 1, and the channel 10 forms a channel opening 11 on the top surface of the mounting base 1. In this embodiment, the channel opening 11 is covered with a filter 12 made of a metal material to block chips and prevent them from intruding into the pneumatic base 4.

The nozzle 2 is fixed to the top surface of the mounting base 1 by a plurality of screws 61, and the nozzle 2 can be removed by removing the screws 61. The nozzle 2 has a square bottom block 200 as a whole, and a column 201 is provided on the square bottom block 200. The top end of the column 201 is concave, thereby forming a ring wall 202, and the ring wall 202 surrounds a working surface 203. In this embodiment, the nozzle 2 is composed of a first component 21 and a second component 22, which are respectively formed into an L shape, and can be assembled left and right to form the aforementioned overall structure.

The first component 21 is provided with a first air passage 211, which penetrates downward from the working surface 203 to the bottom end, and can be connected with the channel opening 11 of the mounting base 1. The first component 21 has a first side surface 212 facing the second component 22, wherein the first side surface 212 is concavely provided with a receiving groove 213 for receiving the blade 3, the depth of the receiving groove 213 is slightly smaller than the thickness of the blade 3, and the receiving groove 213 is not connected to the bottom end of the first component 21, and a bottom edge 214 is formed, so that the receiving groove 213 is not connected to the channel opening 11.

The second component 22 is provided with a second air passage 221, which penetrates downward from the working surface 203 to the bottom end, and can be connected with the channel opening 11 of the mounting base 1. The second component 22 has a second side surface 222 facing the first component 21, wherein the portion of the second side surface 222 facing the receiving groove 213 is a plane.

The blade 3 is accommodated in the receiving groove 213 of the first component 21, with its bottom end abutting against the bottom edge 214 of the receiving groove 213, and its two sides also abut against the two sides of the receiving groove 213 respectively, and the tip 31 of the blade 3 extends out of the working surface 203. Since the thickness of the blade 3 is slightly greater than the depth of the receiving groove 213, the blade 3 occupies the entire receiving groove 213 and is higher than the receiving groove 213.

The first component 21 and the second component 22 are locked together by having the first side surface 212 and the second side surface 222 facing each other, and are locked together by having a plurality of screws 62 passing through them horizontally. Since the blade 3 is slightly higher than the receiving groove 213, the second side surface 222 of the second component 22 is against the blade 3, not the first side surface 212, so as shown in FIG4, a gap 23 is formed between the first component 21 and the second component 22. Referring to FIG5 again, the blade 3 is firmly clamped and fixed by the first component 21 and the second component 22 by the clamping force of the screw 62, and the blade 3 is contacted over a large area, thereby generating an extremely stable fixing effect, thereby reducing the probability of loosening.

With the above structure, when the suction nozzle 2 of the present invention starts to evacuate air on the pneumatic base 4, the airflow will enter from the first air channel 211 and the second air channel 221 of the suction nozzle 2, and enter the pneumatic base 4 through the channel opening 11, thereby forming a negative pressure at the working surface 203 of the suction nozzle 2. When the suction nozzle 2 is pressed against the vacuum packaging of the wafer box, the above negative pressure will attract the packaging bag to the blade 3, so that the packaging bag is cut by the blade 3, thereby not damaging the body of the wafer box. In addition, when the blade 3 is working, even if the tip of the blade is under pressure, the position of the blade 3 is based on its bottom end against the bottom edge 214 of the receiving groove 213, and it will not continue to move downward, thereby producing the effect of not retreating backwards, avoiding affecting the work of cutting the bag.

The advantage of the present invention is that it is a module that can be quickly plugged in and out of the pneumatic base. It is very easy to switch to another module. At the same time, just loosen the screws and remove the first or second component to remove the blade for replacement, which improves the efficiency of maintenance.

However, the disclosure of the above embodiments is only used to illustrate the present invention, not to limit the present invention. Any replacement of equivalent components should still fall within the scope of the present invention.

In summary, those familiar with the technology in this field can understand that the present invention can achieve the aforementioned purpose and is in compliance with the provisions of the Patent Law, and therefore the application is filed in accordance with the law.

1: Install the base

10: Channel

11: Channel opening

12: Filter

203: Working surface

21: First component

211: First airway

212: First side

213: Storage tank

214: Background

22: Second component

221: Second airway

222: Second side

3: Blade

31: Blade tip

4: Pneumatic base

51: Quick-release components

61: Screws

62: Screws

Claims (6)

A nozzle blade, comprising: a pneumatic base; a mounting base, which is provided with a connection port for connecting to the pneumatic base, the connection port forming a channel opening on a top surface of the mounting base; a nozzle, which is detachably fixed to the top surface of the mounting base, the nozzle comprising a working surface, the working surface being provided with at least one air passage connected to the channel opening, and a receiving groove not connected to the channel opening, wherein the nozzle is composed of a first component and a second component that can be matched; a blade disposed in the receiving groove, which is tightly clamped by the first component and the second component, the bottom end of the blade abuts against the bottom of the receiving groove, and the tip of the blade protrudes from the working surface. The nozzle blade as described in claim 1, wherein the receiving groove is formed by being recessed to a depth from the side of the first component facing the second component, and the side of the second component facing the receiving groove is a plane. The nozzle blade as described in claim 2, wherein the thickness of the blade is greater than the depth of the receiving groove, so that the second component is tightly against the blade, and a gap is formed between the first component and the second component. The nozzle knife as described in claim 1, wherein the first component and the second component are locked together with a plurality of screws. The nozzle knife as described in claim 1, wherein a filter covering the channel opening is provided between the mounting base and the nozzle. The nozzle knife as described in claim 1, wherein the mounting base is further provided with at least one quick-release component, and the pneumatic base is provided with at least one docking component that can be combined with the quick-release component.

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