CN212768748U - Air suction device for conveying negative pressure belt - Google Patents
Air suction device for conveying negative pressure belt Download PDFInfo
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- CN212768748U CN212768748U CN202021527521.XU CN202021527521U CN212768748U CN 212768748 U CN212768748 U CN 212768748U CN 202021527521 U CN202021527521 U CN 202021527521U CN 212768748 U CN212768748 U CN 212768748U
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- negative pressure
- air suction
- conveying
- induced drafts
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Abstract
The utility model discloses a device that induced drafts that negative pressure belt conveying was used. The air suction device used for the negative pressure belt transmission is provided with a transmission mechanism and an adsorption device, wherein the transmission mechanism comprises a transmission belt and a roller wheel assembly for driving the transmission belt to rotate; adsorption equipment includes the box that induced drafts, and the dish that induced drafts is installed to box one end that induced drafts, and the fan is installed to the box other end that induced drafts, and the fan sets up with the dish that induced drafts relatively, and conveyer is located the dish outside that induced drafts, has evenly laid a plurality of dish holes that induced drafts on the dish that induced drafts, has evenly laid a plurality of belt holes on the conveyer belt, and the belt hole conveys and forms the negative pressure between the two. The utility model has simple structure, the fan is used as a negative pressure source, and when light load and heavy load change, the suction force generated by the negative pressure to the conveying belt does not change greatly; when the printed product is adsorbed and moved by the conveying belt, the printed product is flat in surface and free from concave deformation because of multi-point uniform adsorption and fixation, and the image quality of image acquisition of the detection camera is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of the lithography apparatus technique and specifically relates to a device that induced drafts that negative pressure belt conveying used.
Background
The negative pressure source adopted by the prior absorption product on the air suction belt is a high pressure fan (also called a vortex air pump), as shown in figure 1, the negative pressure source consists of an air suction box 1, an air pipe 13, an air cabinet 12 (a device containing a plurality of parts of the high pressure fan, an air inlet and outlet heat dissipation fan and reducing noise), the air suction belt, belt rollers at two sides of the air suction box, driving rollers, tensioning rollers and deviation rectifying rollers, and an air suction disc is arranged on the air suction box. The high pressure positive blower provides the dish negative pressure that induced drafts, and the negative pressure of dish that induced drafts sees through the aperture on the belt that induced drafts in the operation again and holds the product and move together to reach the purpose of image acquisition, detection.
The negative pressure generated by the high-pressure fan is large, the maximum negative pressure can reach more than 10kPa, when the high-pressure fan works under light load and heavy load changes (related to the area size and the arrangement of products, whether the products are dense or not), because the negative pressure value of a unit area is high, when the air suction area changes greatly, the change of the negative pressure value is large, the change of the suction force (the change of the load) causes heavy burden to the whole transmission system, and after the high-pressure fan works for a period of time, parts of the transmission system are easy to damage, so that the production is stopped.
In order to avoid the situation of excessive negative pressure, the current practice is to install the manually adjustable bleed port 14 on the air duct 13, and adjust the caliber size by human experience to limit the maximum negative pressure, but the negative pressure is too high to hurt the equipment due to carelessness at any time when human operation is always performed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcomes the defects in the prior art and provides an air suction device for conveying a negative pressure belt.
The utility model provides a technical scheme that its technical problem adopted is: an air suction device for negative pressure belt transmission is provided with a transmission mechanism and an adsorption device, wherein the transmission mechanism comprises a transmission belt and a roller wheel assembly for driving the transmission belt to rotate; the adsorption device comprises an air suction box, one end of the air suction box is provided with an air suction disc, the other end of the air suction box is provided with a fan, the fan and the air suction disc are oppositely arranged, and the conveying belt is positioned on the outer side of the air suction disc;
a plurality of air suction disc holes are uniformly paved on the air suction disc, a plurality of belt holes are uniformly paved on the conveying belt, and negative pressure is formed between the belt holes and the air suction disc holes when the belt holes are conveyed to the air suction disc holes.
The air suction disc is used as a negative pressure buffer area, one side of the air suction disc is provided with a fan for manufacturing negative pressure, the other side of the air suction disc is provided with a conveying belt, when a belt hole in the conveying belt passes through a long waist hole in the air suction disc, the negative pressure extends to the belt hole, and at the moment, if a printed product is arranged in the belt hole, the printed product is adsorbed on the conveying belt by the negative pressure and moves together with the conveying belt, so that the purposes of fixing and conveying the product are achieved. The air suction belt is used for transmitting negative pressure of the air suction disc to adsorb and fix a printing product on the belt surface and to transmit and move, and stable collection conditions are provided for image collection of the detection camera.
The fan adopts an AC fan or a DC fan, and the fan can be driven by constant voltage, voltage and speed regulation or PWM control.
The utility model discloses regard as the negative pressure source with the fan, the advantage does:
firstly, when light load and heavy load change, the suction force generated by the negative pressure to the conveying belt does not change greatly (the variable load is small);
even when the fan is in heavy load, the suction force generated by the negative pressure to the conveying belt cannot be large (the maximum load is small), because the maximum negative pressure of the fan vacuum source is not equal to 1/10 of the maximum negative pressure of the high-pressure fan vacuum source; the negative pressure value of the unit area is small, more and larger areas are used for increasing the suction force, and the weight of the conveying belt and the printed products is not large, so that the change of the suction force is not large even under the change of light load/heavy load, and the risk that a high-pressure fan damages a transmission system when serving as a negative pressure source is avoided;
and thirdly, the air volume of the fan is not less than that of the high-pressure fan, the price is much lower than that of the high-pressure fan, and an air pipe, a fixed frame (even an air cabinet) and a noise pollution prevention facility are not needed.
Further, the device comprises a visual image detection device, wherein the visual image detection device is positioned outside the conveying belt and is provided with a detection camera and an illumination light source.
Further, the roller assembly comprises a driving roller, a tensioning roller, a deviation rectifying roller and a plurality of belt steering rollers, and the rollers are integrated through a conveying belt.
The driving roller is used for driving a power source for rotating the conveying belt, the tensioning roller is used for adjusting the tightness of the conveying belt, the deviation rectifying roller is used for adjusting the deviation of the conveying belt, and the belt roller is used for maintaining the relative position of the belt surface and the air draft disc surface and the steering relation of the belt.
Further, conveyer is located the dish top setting that induced drafts, and visual image detection device is located conveyer top.
Further, the conveyer belt is arranged below the air suction disc, and the visual image detection device is arranged below the conveyer belt.
Further, the shape of the air suction disc hole is long waist-shaped.
The utility model has the advantages that: the utility model discloses simple structure has following advantage:
(1) the fan is used as a negative pressure source, and when light load and heavy load change, the suction force generated by the negative pressure to the conveying belt does not change greatly;
(2) the maximum negative pressure of the fan vacuum source is not equal to 1/10 of the maximum negative pressure of the high-pressure fan vacuum source, so that the high-pressure fan is prevented from being used as a negative pressure source to damage a transmission system;
(3) the fan does not need an air pipe, a fixed frame (even an air cabinet) and a noise pollution prevention facility, so that the production cost is reduced;
(4) when the printed product is adsorbed and moved by the conveying belt, the printed product is flat in surface and free of concave deformation because of multi-point uniform adsorption and fixation, and the image quality of image acquisition of the detection camera is greatly improved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a prior art configuration;
FIG. 2 is a schematic structural view of embodiment 1;
FIG. 3 is a schematic structural view of example 2;
FIG. 4 is a schematic structural view of the suction plate;
fig. 5 is a schematic view of the joint of the suction belt.
In the figure: 1. the automatic printing machine comprises an air suction box, 2 an air suction disc, 3 a fan, 4 a conveying belt, 5 a belt steering roller, 6 a driving roller, 7 a tensioning roller, 8 a deviation correcting roller, 9 a printing product, 10 a detection camera, 11 an illumination light source, 12 an air cabinet, 13 an air pipe, 14 an air guide port, 21 an air suction disc hole and 41 a belt hole.
Detailed Description
The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Example 1
If the printing surface of the printed product 9 is not easy to wear, the suction device used for conveying by using the negative pressure belt sucking air from the front surface is adopted, as shown in fig. 2, an arrow indicates the conveying direction of the conveying belt 4, and a dotted line indicates a camera detection light path.
The suction device used for transmitting the positively arranged negative pressure belt is provided with a visual image detection device, a transmission mechanism and an adsorption device, wherein the visual image detection device is provided with a detection camera 10 and an illumination light source 11, and the transmission mechanism comprises a transmission belt 4 and a roller wheel assembly for driving the transmission belt 4 to rotate; the adsorption device comprises an air suction box 1, an air suction disc 2 is arranged on the upper end face of the air suction box 1, a fan 3 is arranged on the lower end face of the air suction box 1, a conveying belt 4 is positioned above the air suction disc 2, a printing product 9 is adsorbed on the conveying belt 4, and the printing face of the printing product 9 is arranged upwards; an illumination light source 11 is arranged above the printed product 9, and a detection camera 10 is positioned above the illumination light source 11.
A plurality of long waist-shaped air suction disc holes 21 are uniformly laid on the air suction disc 2, and a plurality of belt holes 41 are uniformly laid on the conveying belt 4, as shown in fig. 4 and 5.
The roller assembly comprises a driving roller 6, a tensioning roller 7, a deviation rectifying roller 8 and three belt steering rollers 5, and the rollers are integrated through a conveying belt 4.
The printed product 9 depends on the negative pressure of the belt holes 41 to be adsorbed on the belt surface of the conveying belt 4, the source of the negative pressure is the fan 3, when the belt holes 41 move to the long-waist-shaped air suction disc holes 21, the negative pressure is naturally generated, the area of the printed product 9 is large, the belt holes 41 are covered at the same time, namely, in the moving process of the conveying belt 4, partial belt holes 41 do not adsorb the upper long-waist-shaped air suction disc holes 21 to cause no negative pressure, but the negative pressure generated by other belt holes 41 to the upper air suction disc holes 21 is still enough to provide enough adsorption force.
The working process of the air suction device used for conveying the negative pressure belt is as follows:
(1) the fan 3 is started to drive the whole adsorption device to start working;
(2) the driving roller 6 is started to operate to drive the conveying belt 4 to circularly operate between each roller and the air suction disc 2;
(3) starting an illumination light source 11 and a detection camera 10 to prepare for image acquisition;
(4) the card sending mechanism of the previous process works, the printed products 9 enter from the feeding side of the conveying belt 4, the printing surfaces of the printed products 9 are arranged upwards, the printed products 9 are immediately adsorbed on the belt by the negative pressure on the conveying belt 4, the force for fixing the products at the feeding side is eliminated, and then the printed products 9 move along with the conveying belt 4;
(5) when the printed surface of the printed product 9 passes through the image acquisition area, the detection camera 10 starts image acquisition and transmits the image to an industrial personal computer for analysis and judgment, and when the printed product 9 is adsorbed and moved by the conveying belt 4, the printed product 9 has a flat surface and no concave deformation because of multi-point uniform adsorption and fixation, thereby greatly improving the image quality of the image acquisition of the detection camera;
(6) when the printed products 9 move to the discharging side, the delivery feeding side mechanism continues to transmit, at the moment, the printed products 9 are also separated from the suction range of the conveyor belt 4, and the printed products 9 enter the next procedure.
Example 2
If the printed surface of the printed product 9 is easily worn, the suction device used for negative pressure belt transmission is used for sucking air from the reverse side, as shown in fig. 3, the arrow indicates the transmission direction of the transmission belt 4, and the dotted line indicates the camera detection light path.
The difference from the embodiment 1 is that: an air suction disc 2 is arranged on the lower end face of an air suction box 1, a fan 3 is arranged on the upper end face of the air suction box 1, a conveying belt 4 is positioned below the air suction disc 2, a printing product 9 is adsorbed on the conveying belt 4, and the printing face of the printing product 9 is arranged downwards; an illumination light source 11 is arranged below the printed product 9, and a detection camera 10 is arranged below the illumination light source 11.
The negative pressure belt that adopts the reverse side to induced draft conveys the device that induced drafts that uses, and printing product 9 is normally carried to the hairpin mechanism, and the printing face of printing product 9 exports downwards, can not wear and tear the printing face of printing product 9, has improved the image quality that detects camera image acquisition greatly.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (6)
1. The utility model provides a device that induced drafts that negative pressure belt conveying used which characterized in that: the device is provided with a conveying mechanism and an adsorption device, wherein the conveying mechanism comprises a conveying belt (4) and a roller wheel assembly for driving the conveying belt (4) to rotate; the adsorption device comprises an air suction box (1), one end of the air suction box (1) is provided with an air suction disc (2), the other end of the air suction box (1) is provided with a fan (3), the fan (3) and the air suction disc (2) are oppositely arranged, and a conveying belt (4) is positioned on the outer side of the air suction disc (2);
a plurality of air suction disc holes (21) are uniformly paved on the air suction disc (2), a plurality of belt holes (41) are uniformly paved on the conveying belt (4), and negative pressure is formed between the belt holes (41) when the belt holes (41) are conveyed to the air suction disc holes (21).
2. The suction device for negative pressure belt transmission according to claim 1, wherein: the device also comprises a visual image detection device, wherein the visual image detection device is positioned on the outer side of the conveying belt (4) and is provided with a detection camera (10) and an illumination light source (11).
3. The suction device for negative pressure belt transmission according to claim 1, wherein: the roller wheel assembly comprises a driving roller wheel (6), a tensioning roller wheel (7), a deviation rectifying roller wheel (8) and a plurality of belt steering roller wheels (5), and the roller wheels form a whole through a conveying belt (4).
4. The suction device for negative pressure belt transmission according to claim 2, wherein: conveyor belt (4) are located air suction disc (2) top setting, and visual image detection device is located conveyor belt (4) top.
5. The suction device for negative pressure belt transmission according to claim 2, wherein: conveyor belt (4) are located air suction disc (2) below and set up, and visual image detection device is located conveyor belt (4) below.
6. The suction device for negative pressure belt transmission according to claim 1, wherein: the shape of the air suction disc hole (21) is long waist shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021527521.XU CN212768748U (en) | 2020-07-28 | 2020-07-28 | Air suction device for conveying negative pressure belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021527521.XU CN212768748U (en) | 2020-07-28 | 2020-07-28 | Air suction device for conveying negative pressure belt |
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| Publication Number | Publication Date |
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| CN212768748U true CN212768748U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021527521.XU Active CN212768748U (en) | 2020-07-28 | 2020-07-28 | Air suction device for conveying negative pressure belt |
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| CN (1) | CN212768748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938559A (en) * | 2021-03-24 | 2021-06-11 | 深圳市全印数码科技有限公司 | Calico printing machine conveying system and calico printing machine |
-
2020
- 2020-07-28 CN CN202021527521.XU patent/CN212768748U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938559A (en) * | 2021-03-24 | 2021-06-11 | 深圳市全印数码科技有限公司 | Calico printing machine conveying system and calico printing machine |
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