KR20210002285U - One piece vacuum conveyer belt system - Google Patents

Abstract

The one-piece vacuum conveyor belt system according to the present invention includes: a perforated belt in which perforated holes are evenly formed over the entire area, and which are installed to circulately move from a fixed position to an endless track; A plurality of guide rollers installed in the upper and lower portions at intervals along the perforated belt to guide the circulation movement of the perforated belt; a driving unit located at one end of the perforated belt and having one or more driving rollers installed so that the perforated belt is wound; A plurality of suction plates provided with suction holes corresponding to the area of the upper bottom surface of the perforated belt are provided as an upper surface portion, and an inner space is provided that is covered with a suction plate to receive external suction force, and is disposed to cross the perforated belt along the perforated belt. of the suction chamber; and a plurality of suction fans connected to the suction chamber corresponding to the plurality of suction chambers and providing suction force to the pores of the perforated belt by applying a suction force to the suction chamber. Since the present invention as described above can smoothly and accurately transport the sheet while preventing the slip of the sheet constituting the corrugated cardboard, a number of effects such as reducing defects and increasing productivity can be expected.

Description

One-piece vacuum conveyor belt system {ONE PIECE VACUUM CONVEYER BELT SYSTEM}

The present invention relates to a conveyor belt for transporting objects, and more specifically, to a one-piece vacuum conveyor belt system in which air suction force for adsorption of a transported object to the conveyor belt is provided to the conveyor belt.

In general, corrugated cardboard provides improved tensile and compressive strength compared to weight and unit price in order to overcome the limitations of the paper material. A plurality of spatial layers are formed by the corrugated paper, and it also contains a buffering property that alleviates external shocks, so it has a wide variety of versatility.

Corrugated cardboard is mainly used as a packaging material for boxes for packaging goods. Korean Patent Laid-Open Publication No. 10-2009-0124112 (published on December 3, 2009) discloses an apparatus for manufacturing a corrugated cardboard packaging material.

The apparatus for manufacturing the corrugated cardboard packaging material is connected by pressing the adhesive surface of the printing paper with a pressure roller and a wheel while the printing paper is transferred along the perforated conveyor belt without stopping in a state where the adhesive surfaces of the printing paper A and the printing paper B are in contact with each other.

The apparatus for manufacturing such a corrugated cardboard packaging material is such that, in a state where the adhesive surfaces of the printing papers A and B are in contact with each other, the printing paper is transferred along the perforated conveyor belt without stopping, and the adhesive surface of the printing paper is pressed with a pressure roller and a wheel to connect it.

However, in the apparatus for manufacturing a packaging material for corrugated cardboard as described above, since the pores for the sheet moving on the perforated conveyor are spaced apart from each other by several rows, the sheet is slightly slipped and twisted due to insufficient adsorption and alignment, so the product is defective This occurred, and had a disadvantage in that productivity was lowered.

KR 10-2009-0124112 A 2009. 12. 3.

In the present invention, a new technology was created to solve the problems of the prior art, and the present invention prevents distortion caused by slip of corrugated cardboard by vacuum suction, while allowing smooth and accurate transport, and reduces the defect in corrugated cardboard production The goal was to provide a one-piece vacuum conveyor belt system that could increase productivity and increase productivity.

In addition, although not separately described, other objects within the range that can be inferred in consideration of the specific contents and claims and drawings for carrying out the following design, which describes the one-piece vacuum conveyor belt system of the present invention in detail, also included in the overall solution.

In the present invention, a one-piece vacuum conveyor belt system is constituted as a specific means for solving the problems of the above-described invention, but in the one-piece vacuum conveyor belt system of the present invention, the perforation holes 101 are evenly formed in the entire area, so that a plurality of guide rollers A perforated belt 100 configured to circulate in an endless track by 110, and one or more driving rollers 125 installed to be positioned at one end of the perforated belt 100 to drive the circulating movement of the perforated belt 100 A drive unit 120 and a plurality of suction chambers 130 configured to communicate with a plurality of perforated holes 101 on the inner upper portion of the perforated belt 100 to provide suction force, and a plurality of suction chambers 130 corresponding to the connection A plurality of suction fans 140 configured to provide suction force to the suction chamber 130 through the perforated hole 101 of the perforated belt 100, and a pair of suction chambers 130 connected to each suction fan 140 A communication pipe 150 consisting of a suction pipe 151 installed to be interposed therebetween and a docking chamber 153 having a pair of communication openings 152 installed at the tip of the suction pipe 151 and communicating with the suction chambers 130 on both sides, respectively. As this is included, the suction chamber 130 has a plurality of suction holes 132 corresponding to the perforated holes 101 formed on the inner upper bottom surface of the perforated belt 100 so that the suction power of the suction fan 140 is applied to the suction holes ( An upper opening 162 is provided at the upper end so that the suction plate 131 configured to act from the upper portion to the lower portion of the 132 and the suction plate 131 are coupled to the upper portion, and in the upper opening 162, both lower side side portions The upper chamber 161 is provided with an inner space so as to have a tapered shape from the upper part to the lower part, the lower opening 166 coupled to the lower part of the upper chamber 161 and connected to the upper chamber 161, and the docking chamber 153 ), since the lower chamber 165 provided with the side opening 167 connected to the communication opening 152 of the The perforated belt 10 through the chamber 130 0) is characterized in that it is configured to enable transport by adsorbing a transport object placed on the upper surface.

The present invention is linked to the other guide roller 110 installed at the other end of the perforated belt 100 in the above, and one side of the perforated belt 100 is tilted according to the alignment error of the other guide roller 110 . The other guide is connected to a meander detection unit 170 that detects a meander by A meander correction unit 180 connected to the first lower roller 115 that is the roller 110 and moving the first lower roller 115 is further included, and the correction adjustment unit 182 includes the first lower roller 115 . Including a control screw 183 screwed horizontally to the control screw 183, a compensation motor 184 for driving the control screw 183, and a reduction unit 185 connecting the control screw 183 and the compensation motor 184, As the compensating motor 184 is driven, the adjusting screw 183 is rotated by the reduction unit 185 so that one of the rotating shafts of the first lower roller 115 moves along the compensating guide 181, and the other The rotation shaft of the guide roller 110 is movably installed in the meander correcting unit 180, and the meander correcting unit 180 is interlocked with the meander detecting unit 170 to the other guide roller 110. It may be characterized in that it is configured to correct the meandering of the perforated belt 100 by moving the rotation axis of the.

In addition to this, the communication opening 152 and the side opening 167 respectively penetrating through the docking chamber 153 and the lower chamber 165 are narrower than the docking chamber 153 and the lower chamber 165, and the upper chamber The lower opening 166 formed to penetrate through the 161 and the lower chamber 165, respectively, is formed to be narrower than the upper chamber 161 and the lower chamber 165, and the suction pipe 151 and the docking chamber are formed by the suction fan 140. 153, the lower chamber 165, the upper chamber 161 through the suction hole 132 of the suction plate 131 coupled to the upper opening 162 may be characterized in that it is configured to provide a more improved suction force. .

According to the specific means for solving the above-described problems, the one-piece vacuum conveyor belt system of the present invention can be transported smoothly and accurately while preventing distortion due to slip of the corrugated cardboard by the one-piece vacuum conveyor device, and can reduce defects in corrugated cardboard production It is a design with many expected effects, such as reducing and increasing productivity.

1 is a perspective view of a one-piece vacuum conveyor belt system according to an embodiment of the present invention;
2 is a plan view (a) and a side view (b) of FIG. 1
3 is a cross-sectional view taken along line AA of FIG.
4 is an exploded perspective view of the suction chamber and the suction fan of FIG.
5 is a bottom perspective view of FIG.
6 is a cross-sectional view showing a structure connected during assembly of FIGS. 4 and 5;
7 is an enlarged perspective view of a meander correcting unit according to an embodiment of the present invention;
8 is an enlarged view of a tension adjusting unit according to an embodiment of the present invention;

Hereinafter, various embodiments of the present invention will be described with reference to specific embodiments shown in the accompanying drawings.

1 to 3, the one-piece vacuum conveyor belt system according to an embodiment of the present invention is a plurality of perforated belts 100 for adsorption transfer of corrugated cardboard as main elements, and a plurality of perforated belts 100 for maintaining tension. A guide roller 110, a driving unit 120 for driving the perforated belt 100, a suction chamber 130 for providing an external suction force to the perforated belt 100, and a suction fan for applying a suction force to the suction chamber 130 ( 140).

The perforated belt 100 is installed so that the perforated holes 101 are uniformly formed in the entire area inside the outer boundary rim, and cyclically move in the form of an endless track from a fixed position.

The perforated belt 100 has an upper surface and a lower surface arranged in a horizontal shape, one side of the right side is inclined, and the other side of the left side is wound around an object such as a roller.

The perforated belt 100 is installed on rollers (guide roller 110, driving roller 125, tension roller 190) that are rotatably fixed in position to maintain a cyclically rotated endless track.

The perforated belt 100 can accurately transfer a plate-shaped object such as corrugated cardboard from one side to the other by the suction force provided to the horizontal upper surface portion and the pores. The transfer object is prevented from being warped by the adsorption force provided to the perforated belt 100, and the external loading arrangement is maintained and transferred.

The plurality of guide rollers 110 are rotatably installed on the frame body of the conveyor system, and are installed in the upper and lower portions at intervals along the perforated belt 100 to guide the circulation movement of the perforated belt 100. .

The plurality of guide rollers 110 includes a plurality of upper rollers 111 and lower rollers 115 and 116 that are respectively spaced apart.

Among the plurality of upper rollers 111 , the remaining four except those disposed at both ends of the perforated belt 100 are rotatably coupled to both sidewalls of the suction chamber 130 to move upward through the upper surface of the suction chamber 130 . It supports the bottom surface of the perforated belt 100 that is moved by being exposed.

The upper part of the perforated belt 100 is smoothly supported by the upper roller 111 and circulated to the lower part.

The plurality of lower rollers 115 and 116 includes a first lower roller 115 supporting both upper surface portions in the lower portion of the perforated belt 100 and three second lower rollers 116 supporting the lower surface portion.

The first lower roller 115 has a diameter about twice that of the second lower roller 116 , and the second lower roller 116 is smaller than that, and is in contact with the lower bottom surface of the perforated belt 100 to make it smooth Creates a circular movement.

The driving unit 120 is positioned at one end of the perforated belt 100 and has a driving roller 125 installed so that the perforated belt 100 is wound.

The driving unit 120 includes a driving motor 121 and a coupler 122 connected to the driving roller 125 . The rotating shaft of the driving roller 125 is connected to the driving motor 121 through a coupler 122 .

The driving roller 125 is located on the lower left side of the perforated belt 100, is lower than the upper roller 111 which is the guide roller 110 at the left end, has the largest diameter among the rollers, and is wound The belt 100 is transferred by torque and frictional force by rotational force. The driving motor 121 and the driving roller 125 cyclically move the perforated belt 100 in a pre-selected rotation direction.

The plurality of suction chambers 130 have a suction plate 131 provided with suction holes 132 corresponding to the area of the upper bottom surface of the perforated belt 100 as an upper surface portion, and are covered with the suction plate 131 to provide an external An internal space receiving the suction force is provided, and is disposed to cross the perforated belt 100 along the perforated belt 100 .

The plurality of suction chambers 130 receive a suction force provided from the outside, and provide a structure in which the suction force is transmitted to the suction holes 132 of the suction plate 131 , so the pores flowing onto the suction plate 131 . It is possible to create an adsorption force for the transported object placed on the belt (100).

The plurality of suction fans 140 are connected to the suction chamber 130 to correspond to the plurality of suction chambers 130 and provide suction power to the pores of the perforated belt 100 by applying suction force to the suction chamber 130 . will do

The plurality of suction fans 140 are installed on the support, and are composed of a blower 141 and a blower motor 142 to suck the air in the suction chamber 130 by an impeller therein and discharge it to the outside.

4 and 5 , the one-piece vacuum conveyor belt system according to the present embodiment may further include a communication pipe 150 connecting the plurality of suction chambers 130 to the suction fan 140 in pairs.

One end of the communication pipe 150 is connected to the blower 141 of the suction fan 140 , and the other end is connected to the pair of suction chambers 130 .

The communication pipe 150 is a docking chamber provided with a suction pipe 151 connected to the suction fan 140 , and a pair of communication openings 152 that cross the suction pipe 151 and are connected to the pair of suction chambers 130 . (153) may be provided.

Since the suction chamber 130 is connected to one pair of suction fans 140 , one suction fan 140 may provide suction force to the pair of suction chambers 130 .

In the present embodiment, the remaining four pairs of suction chambers 130 excluding the suction chamber 130 on the left are connected to the four suction fans 140 . Of course, the suction chamber 130 and the suction fan 140 may be further disposed according to the transport length of the perforated belt 100 .

The suction chamber 130 includes an upper chamber 161 , a partition 163 , and a lower chamber 165 .

The upper chamber 161 provides an internal space, and is provided with an upper opening 162 covered by the suction plate 131 corresponding to the suction plate 131 , and the lower both side portions in the upper opening 162 are formed from the upper portion. It has a shape that tapers downward.

The upper chamber 161 has a wide upper part, a lower lower part, and a narrow upper part, and has a structure in which the suction force provided from the lower chamber 165 is widely provided to the suction plate 131 .

The partition 163 is installed at intervals in the upper chamber 161 to partition the inner space, but a connection bar 164 for interconnection is provided at the upper portion to support the bottom surface of the suction fan 140 .

The partition 163 partitions the upper chamber 161 so that the suction force provided from the lower chamber 165 is sufficiently transmitted to the suction plate 131 placed on the upper part of the upper chamber 161, thereby suppressing the occurrence of large turbulence in a large space. It can reduce the decrease in suction pressure by playing a role, and improve the durability of the upper chamber (161).

The lower chamber 165 is coupled to a lower portion of the upper chamber 161 , and a lower opening 166 connected to the upper chamber 161 is provided. The side opening 167 formed in the side portion of the lower chamber 165 is connected to the communication opening 152 of the docking chamber 153 installed at the front end of the communication pipe 150 .

The lower chamber 165 has a rectangular parallelepiped shape elongated back and forth, sufficiently supporting the narrowed lower end of the upper chamber 161, and the lower opening formed in the upper surface is in the inner spaces of the upper chamber 161 separated by the partition 163, respectively. By being connected, the suction force provided from the suction fan 140 may be applied to the upper chamber 161 .

The lower chamber 165 is also provided with a plurality of support plates 168 for internal support as an element for preventing plate-shaped compressive deformation. The lower opening 166 is formed between the plurality of support plates 168 .

The upper chamber 161 and the lower chamber 165 are coupled by a coupling member 169 . An "L"-shaped coupling member 169 is installed on the lower chamber 165 , the lower part of the coupling member 169 is coupled to the lower chamber 165 , and the upright upper part is a partition ( 163).

At this time, as shown in FIG. 6 , a pair of communication openings 152 and each side opening 167 formed to pass through the docking chamber 153 and the lower chamber 165 at the front end of the suction pipe 151 are the docking chambers ( 153) and the lower chamber 165, and the lower openings 166 formed to penetrate through the upper chamber 161 and the lower chamber 165 on both sides, respectively, are the upper chamber 161 and the lower chamber 165. The suction plate 131 is formed narrower and coupled to the upper opening 162 through the suction pipe 151, the docking chamber 153, the lower chamber 165, and the upper chamber 161 by the suction fan 140. The suction hole 132 provides more improved suction power, and the suction hole 132 of the suction plate 131 and the perforated hole 101 of the perforated belt 100 are placed on the upper surface of the perforated belt 100 by the improved suction power. By adsorbing a plate-shaped transfer object, such as corrugated cardboard, it is loaded at a certain position to prevent distortion or fall.

Referring to FIG. 7 , the one-piece vacuum conveyor belt system according to the present embodiment further includes a meandering detecting unit 170 for detecting a meandering due to tilting of the perforated belt 100 and a meandering correcting unit 180 for correcting it. may include

The meandering sensing unit 170 is installed on both sides of the suction chamber 130 located in the front of the perforated belt 100 or the suction plate 131 of the suction chamber 130 located in the front of the perforated belt ( 100) is configured to control the meandering correction unit 180 to correct the position of the perforated belt 100 by sensing when the perforated belt 100 is tilted to one side of both sides because it is composed of a proximity sensor that detects the proximity.

The meander correction unit 180 is connected to the first lower roller 115, which is another guide roller 110 installed at the other end of the perforated belt 100 among the plurality of guide rollers 110, and the first lower roller ( 115) will be moved. The other guide roller 110 corresponds to the first lower roller 115 among the lower rollers on the left.

The meander correction unit 180 is connected to the correction guide 181 installed on both sides of the first lower roller 115 and the first lower roller 115 to move one side of the rotation shaft of the first lower roller 115 to the left and right. and a movable correction adjustment unit 182 .

The correction guide 181 supports the installation part to which the first lower roller 115 is rotatably coupled, and is installed above and below the installation part of the first lower roller 115 .

The correction adjustment unit 182 includes an adjustment screw 183 screwed horizontally to the installation part of the first lower roller 115 , a correction motor 184 and an adjustment screw 183 for driving the adjustment screw 183 , and It includes a reduction unit 185 for connecting the correction motor (184).

As the correction motor 184 is driven, the adjustment screw 183 is rotated by the reduction unit 185 , and one of the rotation shafts of the first lower roller 115 moves along the correction guide 181 . Accordingly, the first lower roller 115 is moved, and the meandering according to the abnormal alignment of the perforated belt 100 is corrected.

As such, the installation part of the first lower roller 115, the central axis is movably installed in the meander correcting unit 180, the meandering correcting unit 180 is connected to the meandering detecting unit 170 to the first lower roller ( By moving the central axis of the 115), it is possible to correct the meandering of the perforated belt 100.

The meandering corrector 180 may include a control unit capable of automatically controlling the correcting motor 184 by detecting the meandering angle of the first lower roller 115 by the meandering detecting unit 170 .

In this embodiment, the mounting portion of each roller includes elements to which the rotation shafts are rotatably coupled.

Referring to FIG. 8 , the one-piece vacuum conveyor belt system according to the present embodiment may further include a tension roller 190 and a tension adjusting unit 195 .

The tension roller 190 is installed adjacent to the driving roller 125 so that the perforated belt 100 is wound.

The tension adjusting unit 195 is a link 196 to the tension roller 190 to be relatively rotatably installed on the central axis of the driving roller 125 so as to move the tension roller 190 .

The tension roller 190 and the driving roller 125 are connected by a pair of links 196 installed on both sides.

The link 196 has a thin case block shape that connects the rotation shaft of the tension roller 190 and the rotation shaft of the driving roller 125 , and the upper end is connected to the installation part of the rotation shaft of the tension roller 190 , and the lower end is idling. It is connected to the installation part of the driving roller 125 so as to be idling.

The tension adjusting unit 195 may include a link 196 , a rotation driving unit 197 , and a rotation bar 198 connected to the link 196 .

The rotating ring part 191 is configured to rotate freely by a bearing coupled to the driving roller 125 .

When a pushing or pulling force is applied to the rotation driving unit 197 by a tension driving means (not shown) such as hydraulic pressure or an air cylinder, the rotating ring unit 191 and the link 196 integrally coupled with the rotating driving unit 197 ) rotates based on the driving roller 125 .

At this time, as the link 196 is rotated with respect to the axis of rotation of the driving roller 125 , the axis of rotation of the tension roller 190 may be moved.

The link 196 has a long rotation limiting hole 192 formed therein, and by combining a separate piece to the rotation limiting long hole 192 to have a correlation with a separate limiting means, the rotation angle of the rotation ring part 191 and the tension roller The tension applied to (190) may be preset so as to be limited.

In this embodiment, the tension of the perforated belt 100 wound around the tension roller 190 is adjusted by rotating the tension roller 190 obliquely from side to side. When the link 196 is rotated to the left, the tension of the driving roller 125 wound around the tension roller 190 is relieved, and when the link 196 is rotated to the right, the tension of the driving roller 125 wound around the tension roller 190 is relieved. tension is strengthened.

As such, according to the present embodiment, the tension of the perforated belt 100 may be appropriately adjusted by the movement of the tension roller 190 by the tension adjusting unit 195 .

Although the embodiments of the present invention have been described as described above, those of ordinary skill in the art based thereon can add or change components within the scope not departing from the essential technical spirit of the present invention described in the claims. , it will be possible to variously modify and change the present invention by deletion or addition, which is also included within the scope of the present invention.

100: perforated belt 101: perforated hole
110: guide roller 111: upper roller
115: first lower roller 116: second lower roller
120: driving unit 121: driving motor
122: coupler 125: drive roller
130: suction chamber 131: suction plate
132: suction hole 140: suction fan
141: blower 142: blower motor
150: communication pipe 151: suction pipe
152: communication opening 153: docking chamber
161: upper chamber 162: upper opening
163: partition 164: connecting bar
165: lower chamber 166: lower opening
167: side opening 168: support plate
169: coupling member 170: meander detection unit
180: meander correction unit 181: correction guide
182: compensation adjustment unit 183: adjustment screw
184: compensation motor 185: reduction unit
190: tension roller 191: rotating ring part
192: rotation limiting long hole 195: tension control unit
196: link 197: rotary drive part
198: rotation bar

Claims (3)

The perforated belt 100 in which the perforated holes 101 are uniformly formed over the entire area and circulated in an endless track by a plurality of guide rollers 110, and the perforated belt 100 to drive the circulation movement of the perforated belt 100 A plurality of suction configured to communicate with the driving unit 120 having one or more driving rollers 125 installed to be positioned at one end of the and a plurality of perforated holes 101 on the inner upper portion of the perforated belt 100 to provide suction force A plurality of suction fans 140 connected to the chamber 130 and the plurality of suction chambers 130 and configured to provide suction force to the suction chamber 130 through the perforated holes 101 of the perforated belt 100, each The suction pipe 151 connected to the suction fan 140 and installed to be interposed between a pair of suction chambers 130, respectively, and communication openings 152 installed at the front end of the suction pipe 151 to communicate with the suction chambers 130 on both sides, respectively. ) a communication tube 150 consisting of a docking chamber 153 having a pair is included;
The suction chamber 130,
A plurality of suction holes 132 corresponding to the perforated hole 101 are formed on the inner upper bottom surface of the perforated belt 100 so that the suction force of the suction fan 140 acts from the top to the bottom of the suction hole 132. plate 131;
The upper opening 162 is provided at the upper end so that the suction plate 131 is coupled to the upper chamber, and the inner space is provided so that the lower side side portions in the upper opening 162 have a tapered shape from the top to the bottom. (161);
A lower chamber 165 provided with a lower opening 166 coupled to the lower portion of the upper chamber 161 and connected to the upper chamber 161 and a side opening 167 connected to the communication opening 152 of the docking chamber 153 . ;
Since is included, a transfer object placed on the upper surface of the perforated belt 100 is adsorbed and transported through a pair of suction chambers 130 on both sides of the communication tube 150 by one suction fan 140 and the communication tube 150 . One-piece vacuum conveyor belt system, characterized in that configured to be possible.
According to claim 1,
It interlocks with the other guide roller 110 installed at the other end of the perforated belt 100, and detects a meandering due to tilting of one side of the perforated belt 100 according to an alignment error of the other guide roller 110. a meandering detection unit 170;
Among the plurality of guide rollers 110 , it is connected to the other guide roller 110 installed at the other end of the perforated belt 100 , and is connected to the first lower roller 115 which is the other guide roller 110 . A meander correction unit 180 for moving the first lower roller 115 is further included;
The meander correction unit 180 is connected to the correction guides 181 installed on both sides of the first lower roller 115 and the first lower roller 115 to move one side of the rotation shaft of the first lower roller 115 left and right. A correction adjustment unit 182 configured to be movable is included;
The correction adjustment unit 182 includes an adjustment screw 183 screwed horizontally to the first lower roller 115 , a correction motor 184 for driving the adjustment screw 183 , and an adjustment screw 183 and a correction motor As the correction motor 184 is driven, including the reduction unit 185 connecting the configured to move along the calibration guide 181 ;
The rotation shaft of the other guide roller 110 is movably installed in the meander correcting unit 180 , and the meandering correcting unit 180 is interlocked with the meander detecting unit 170 and the other guide roller One-piece vacuum conveyor belt system, characterized in that it is configured to correct the meandering of the perforated belt (100) by moving the rotating shaft of (110).
According to claim 1,
The communication opening 152 and the side opening 167 formed to penetrate through the docking chamber 153 and the lower chamber 165, respectively, are narrower than the docking chamber 153 and the lower chamber 165;
The lower opening 166 formed to pass through the upper chamber 161 and the lower chamber 165, respectively, is formed to be narrower than the upper chamber 161 and the lower chamber 165;
The suction hole 132 of the suction plate 131 coupled to the upper opening 162 through the suction pipe 151, the docking chamber 153, the lower chamber 165, and the upper chamber 161 by the suction fan 140 One-piece vacuum conveyor belt system, characterized in that it is configured to provide more improved suction power.

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