CN211812065U - Positioning system of negative pressure conveying platform - Google Patents
Positioning system of negative pressure conveying platform Download PDFInfo
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- CN211812065U CN211812065U CN201922279858.7U CN201922279858U CN211812065U CN 211812065 U CN211812065 U CN 211812065U CN 201922279858 U CN201922279858 U CN 201922279858U CN 211812065 U CN211812065 U CN 211812065U
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Abstract
The utility model relates to an industrial printing technology, and discloses a negative pressure conveying platform positioning system, which comprises a negative pressure conveying platform with a working area, wherein the negative pressure conveying platform comprises an adsorption device and a conveying belt wound outside the adsorption device, and the conveying belt is provided with an air suction hole communicated with the adsorption device; the adsorption device comprises a plurality of negative pressure cavities which are arranged along the conveying direction, the negative pressure cavities of the working area are symmetrically distributed by taking the central line of the working area which is vertical to the conveying direction as a symmetrical axis, and the symmetrical negative pressure cavities are associated; the positioning line of the positioning system is the central line of the working area. During operation, the medium is conveyed and positioned to the central line of the working area, and the negative pressure cavities symmetrically distributed on two sides of the central line of the working area can be effectively covered to the maximum extent, so that the negative pressure adsorption effect is exerted to the maximum extent.
Description
Technical Field
The utility model relates to an industrial printing technology field, more specifically relates to a negative pressure conveying platform positioning method and system.
Background
The industrial printer is widely applied to printing of large-size printing media such as ceramic tiles, wood boards, glass, corrugated paper, buckle plates and the like, ink of various colors or effects is printed on the printing media in an ink-jet mode and is further processed to obtain expected patterns, the ink permeates into the inside of the printing media through corrosion in the printing process, the patterns obtained by spray painting are not easy to fade, and the printing media have the characteristics of water resistance, ultraviolet resistance, scratch resistance and the like.
For hard light media such as corrugated paper, a conveying platform is different from heavy media such as ceramic tiles and the like, and a negative pressure conveying platform is required to be adopted for conveying. For the negative pressure conveying platform adopting the conveying belt to be communicated with the negative pressure device, the corresponding area of the conveying belt communicated with the same negative pressure cavity of the negative pressure device needs to be completely covered to play a role in negative pressure adsorption, and once a certain point is uncovered, the area can not play a role in adsorption completely due to air leakage. Cutting the negative pressure chamber into smaller units of negative pressure chambers and connecting to different negative pressure pumps is a lost solution, but with smaller units more negative pressure pumps are needed to provide the negative pressure, which is not a trivial burden, either in cost or space. Therefore, the positioning method and system of the negative pressure conveying platform need to be improved.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a method for positioning a negative pressure conveying platform, which can reduce the difficulty of negative pressure distribution design, in order to overcome at least one of the disadvantages of the prior art.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a positioning method of a negative pressure conveying platform, wherein the negative pressure conveying platform passes through a working area for working a conveyed medium, and the positioning method comprises the following steps: determining a working center where the medium is to be worked according to the working content, and enabling the medium to be conveyed and positioned to the position where the working center is superposed with the center line of the working area; the central line of the working area is vertical to the conveying direction, and the negative pressure cavities for providing negative pressure for the working area are symmetrically distributed by taking the central line of the working area as a symmetrical axis and are associated with each other.
The utility model discloses a change positioning method and reduce the degree of difficulty that negative pressure conveying platform negative pressure chamber planned. Firstly, determining a working area with a negative pressure adsorption positioning effect in the operation process through fixed-point positioning operation; secondly, the distribution of the negative pressure cavities in the working area adopts a mode of symmetrically distributing along the central line of the working area, and the symmetrical negative pressure cavities are associated; finally, because of the fixed-point positioning mode, the medium needs to be positioned at a certain position of the working area during operation, and the conveying positioning of the medium adopts a center-to-center positioning mode, namely the operation center of the medium is aligned with the central line of the working area. Therefore, the medium is conveyed and positioned to the central line of the working area during operation, the negative pressure cavities symmetrically distributed on two sides of the central line of the working area can be effectively covered to the maximum extent, and the negative pressure adsorption effect is exerted to the maximum extent.
Preferably, the medium being conveyed is given an instantaneous resistance to straightening before it is conveyed during the conveying process.
Preferably, the medium to be conveyed is given an instantaneous thrust from both sides in the conveying direction before or during conveyance to be straightened.
The utility model also provides a negative pressure conveying platform positioning system applying the method, which comprises a negative pressure conveying platform with a working area, wherein the negative pressure conveying platform comprises an adsorption device and a conveying belt wound outside the adsorption device, and the conveying belt is provided with an air suction hole communicated with the adsorption device; the adsorption device comprises a plurality of negative pressure cavities which are arranged along the conveying direction, the negative pressure cavities of the working area are symmetrically distributed by taking the central line of the working area which is vertical to the conveying direction as a symmetrical axis, and the symmetrical negative pressure cavities are associated; the positioning line of the positioning system is the central line of the working area.
The utility model discloses a change positioning system and reduce the degree of difficulty that negative pressure conveying platform negative pressure chamber planned. Firstly, fixed-point positioning operation is realized by establishing a working area; secondly, carrying out centralized control on the negative pressure cavities with the negative pressure adsorption positioning function in the working area in a manner of symmetrical distribution and symmetrical association along the central line of the working area; and finally, the center line of the working area, which is taken as a distribution symmetry axis of the negative pressure cavity, is taken as a positioning line to realize the positioning mode that the medium operation center is aligned with the center line of the working area. Therefore, the medium is conveyed and positioned to the central line of the working area during operation, the negative pressure cavities symmetrically distributed on two sides of the central line of the working area can be effectively covered to the maximum extent, and the negative pressure adsorption effect is exerted to the maximum extent.
In order to convey a medium of a larger size, the negative pressure conveying platform needs to be designed to be larger, but it is not preferable to enlarge the width of the conveyor belt in a lump, and the difficulty of tensioning becomes larger as the width of the conveyor belt becomes larger. Preferably, the negative pressure conveying platform comprises a plurality of conveying units arranged along the vertical conveying direction, and each conveying unit comprises an adsorption device and a conveying belt wound on the outer side of the adsorption device. More preferably, the negative pressure chambers of different transport units form several columns distributed in the transport direction, each column comprising several negative pressure chambers from different transport units arranged in the perpendicular transport direction, the negative pressure chambers in the same column being associated. More preferably, two symmetrical columns of negative pressure chambers in the working area are associated.
The negative pressure conveying platform positioning system further comprises a straightening mechanism arranged above the negative pressure conveying platform and behind the working area, the straightening mechanism comprises a guide rail, two ejection structures and at least one ejection driving device, the two ejection structures are symmetrically arranged, and the at least one ejection structure is connected with the guide rail in a sliding mode and driven by the ejection driving device to slide along the guide rail. The instantaneous thrust of the pushing structure in the straightening mechanism to the piled media from two opposite sides promotes the media to be straightened, and the media are accurately positioned under the action of negative pressure adsorption of the negative pressure conveying platform after being straightened.
The negative pressure conveying platform is further provided with a cross beam which crosses the conveying platform and is perpendicular to the conveying direction, and the guide rail is formed on the cross beam or the cross beam forms the guide rail.
The push structure comprises a push plate and a support, the push plate is connected with the beam through the support, the support of the push structure in sliding connection with the guide rail is provided with a pulley in sliding connection with the beam, and the sliding smoothness of the push structure is improved through the pulley.
The support is font, and the lock joint is on the crossbeam, the pulley sets up in top and one side of font, improves the stability of being connected of support and crossbeam.
The pneumatic boosting structure is arranged on the lower side of the push plate and comprises a boosting block and a boosting cylinder, the boosting block is connected to the boosting cylinder, and the boosting cylinder is fixed on the outer side of the push plate. Even if the straightening mechanism breaks down, the straightening effect on the medium can be realized through the pneumatic boosting structure. The pneumatic boosting structure is inclined from the outer upper side to the inner lower side, the boosting block is wedge-shaped, the wedge-shaped surface faces the inner side and is perpendicular to the conveying platform, the wedge-shaped boosting block moves downwards to the medium under the action of the boosting cylinder, and the wedge-shaped surface forms instant thrust to the medium to promote the medium to be straightened. In order to prevent the push plate from scraping the upper surface of the negative pressure conveying platform, a certain gap needs to be reserved between the push plate and the negative pressure conveying platform, and when the thickness of the medium is small, the bottommost medium is difficult to be pushed to realize alignment. The pneumatic boosting structure arranged obliquely can instantly finish the pushing effect due to the fact that the boosting block is stretched, the distance between the stretched boosting block and the negative pressure conveying platform can be designed to be smaller, and the pneumatic boosting structure can play a role in pushing and aligning media with small thickness.
Compared with the prior art, the utility model has following beneficial effect: the utility model discloses a change positioning method and reduce the degree of difficulty that negative pressure conveying platform negative pressure chamber planned. Firstly, determining a working area with a negative pressure adsorption positioning effect in the operation process through fixed-point positioning operation; secondly, the distribution of the negative pressure cavities in the working area adopts a mode of symmetrically distributing along the central line of the working area, and the symmetrical negative pressure cavities are associated; finally, because of the fixed-point positioning mode, the medium needs to be positioned at a certain position of the working area during operation, and the conveying positioning of the medium adopts a center-to-center positioning mode, namely the operation center of the medium is aligned with the central line of the working area. Therefore, the medium is conveyed and positioned to the central line of the working area during operation, the negative pressure cavities symmetrically distributed on two sides of the central line of the working area can be effectively covered to the maximum extent, and the negative pressure adsorption effect is exerted to the maximum extent.
Drawings
FIG. 1 is a first schematic view of a positioning method of a negative pressure transfer platform.
FIG. 2 is a second schematic view of a positioning method of the negative pressure transfer platform.
Fig. 3 is a schematic structural diagram of a positioning system of the negative pressure conveying platform.
FIG. 4 is a side view of the negative pressure transfer platform positioning system.
Fig. 5 is a schematic structural view of the squaring mechanism.
Fig. 6 is a schematic structural view of a pneumatic booster structure.
Description of reference numerals: the device comprises a working area B, a working center A, a working area central line I, instantaneous resistance F, instantaneous thrust T, a medium Z, a negative pressure conveying platform 100, a negative pressure cavity 110, a conveying belt 120 pushing structure 210, a pushing plate 211, a support 212, a pulley 213, a boosting block 2141 and a boosting cylinder 2142.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention. The present invention will be described in further detail with reference to specific embodiments.
Example 1
As shown in fig. 1 to 2, a method for positioning a negative pressure conveying platform, where the negative pressure conveying platform passes through a working area B where a conveyed medium Z is operated, includes: determining a working center A where the medium Z is to be worked according to the working content, and enabling the medium Z to be conveyed and positioned to the position where the working center A is coincident with a working area central line I; the central line I of the working area is vertical to the conveying direction, and the negative pressure cavities for providing negative pressure for the working area B are symmetrically distributed by taking the central line I of the working area as a symmetric axis and are associated with each other.
The utility model discloses a change positioning method and reduce the degree of difficulty that negative pressure conveying platform negative pressure chamber planned. Firstly, determining a working area B playing a role in negative pressure adsorption positioning in the operation process through fixed-point positioning operation; secondly, for the distribution of the negative pressure cavities in the working area B, the negative pressure cavities are symmetrically distributed along the central line I of the working area, and the symmetrical negative pressure cavities are associated; finally, because a fixed-point positioning mode is adopted, the medium Z needs to be positioned at a certain position of the working area B during operation, and a center-to-center positioning mode is adopted for conveying and positioning the medium Z, namely the operation center A of the medium Z is aligned with the central line I of the working area. Therefore, the medium Z is conveyed and positioned on the central line I of the working area during operation, and the negative pressure cavities symmetrically distributed on two sides of the central line I of the working area can be effectively covered to the maximum extent, so that the negative pressure adsorption effect is exerted to the maximum extent.
For the determination of the job center a, if the size of the target pattern to be printed is equivalent to the printing format of the carriage used for printing, the job center a may be determined according to the target area expected to be printed on the printing medium Z; if the size of the target pattern to be printed is much smaller than the printing swath of the carriage used for printing, the job center a may be determined from the center of symmetry of the print medium Z.
Preferably, as shown in fig. 1, the medium Z to be conveyed is given an instantaneous resistance F during conveyance to straighten it before conveyance.
Preferably, as shown in fig. 2, the medium Z to be conveyed is given an instantaneous thrust T from both sides in the conveying direction before or during conveyance to be straightened.
Example 2
As shown in fig. 3 to 4, a positioning system of a negative pressure conveying platform 100 applying the above method includes a negative pressure conveying platform 100 having a working area, the negative pressure conveying platform 100 includes an adsorption device and a conveying belt 120 wound around the adsorption device, and the conveying belt 120 is provided with an air suction hole communicated with the adsorption device; the suction device comprises a plurality of negative pressure cavities 110 which are arranged along the conveying direction, the negative pressure cavities 110 of the working area are symmetrically distributed by taking the central line of the working area which is vertical to the conveying direction as a symmetrical axis, and the symmetrical negative pressure cavities 110 are associated; the positioning line of the positioning system is the central line of the working area.
The utility model discloses a change positioning system and reduce the degree of difficulty that negative pressure conveying platform 100 negative pressure chamber 110 planned. Firstly, fixed-point positioning operation is realized by establishing a working area; secondly, the negative pressure cavities 110 with the negative pressure adsorption positioning function in the working area are centrally controlled in a symmetrical distribution and symmetrical association mode along the central line of the working area; finally, the center line of the working area, which is the distribution symmetry axis of the negative pressure cavity 110, is used as a positioning line to realize the positioning mode that the medium operation center is aligned with the center line of the working area. Therefore, the medium is conveyed and positioned on the central line of the working area during operation, and the negative pressure cavities 110 symmetrically distributed on two sides of the central line of the working area can be effectively covered to the maximum extent, so that the negative pressure adsorption effect is exerted to the maximum extent.
In order to convey a medium of a larger size, the negative pressure conveying platform 100 needs to be designed to be larger, but it is not desirable to enlarge the width of the conveyor belt 120 at once, and the difficulty of tensioning becomes greater as the width of the conveyor belt 120 becomes larger. Preferably, the negative pressure conveying platform 100 includes a plurality of conveying units arranged along a vertical conveying direction, and each conveying unit includes a suction device and a conveying belt 120 wound around the outer side of the suction device. More preferably, the underpressure cavities 110 of different transport units form several columns distributed in the transport direction, each column comprising several underpressure cavities 110 from different transport units arranged in the perpendicular transport direction, the underpressure cavities 110 in the same column being associated. More preferably, in connection with fig. 1, two symmetrical columns of sub-ambient pressure cavities 110 in the working area are associated.
As shown in fig. 5, the positioning system of the negative pressure conveying platform 100 further includes a centering mechanism disposed above the negative pressure conveying platform 100 and behind the working area, the centering mechanism includes a guide rail, two pushing structures 210 symmetrically disposed, and at least one pushing driving device, wherein at least one pushing structure 210 is slidably connected to the guide rail and is driven by the pushing driving device to slide along the guide rail. The instantaneous thrust of the pushing structure 210 in the straightening mechanism to the piled media from the two opposite sides promotes the straightening of the media, and the media are accurately positioned due to the negative pressure adsorption action of the negative pressure conveying platform 100 after the straightening.
The negative pressure conveying platform 100 is further provided with a cross beam crossing the conveying platform and perpendicular to the conveying direction, and the guide rail is formed on the cross beam or the cross beam forms the guide rail.
The pushing structure 210 comprises a pushing plate 211 and a bracket 212, the pushing plate 211 is connected with the beam through the bracket 212, a pulley 213 which is connected with the beam in a sliding manner is arranged on the bracket 212 of the pushing structure 210 which is connected with the guide rail in a sliding manner, and the sliding smoothness of the pushing structure 210 is improved through the pulley 213.
The bracket 212 is -shaped and is buckled on the cross beam, and the pulleys 213 are arranged at the top and one side of the -shaped, so that the connection stability of the bracket 212 and the cross beam is improved.
The downside of push pedal 211 still is equipped with pneumatic boosting structure, as shown in fig. 6, pneumatic boosting structure includes boosting block 2141 and boosting cylinder 2142, boosting block 2141 connects in boosting cylinder 2142, boosting cylinder 2142 is fixed in the push pedal 211 outside. Even if the straightening mechanism breaks down, the straightening effect on the medium can be realized through the pneumatic boosting structure. The pneumatic boosting structure is inclined from the outer upper side to the inner lower side, the boosting block 2141 is wedge-shaped, the wedge-shaped surface faces the inner side and is perpendicular to the conveying platform, the wedge-shaped boosting block 2141 moves downwards to the medium under the action of the boosting cylinder 2142, and the wedge-shaped surface forms instant thrust to the medium to promote the medium to be straightened. In order to prevent the push plate 211 from being scraped to the upper surface of the negative pressure conveying platform 100, a certain gap needs to be reserved between the push plate 211 and the negative pressure conveying platform 100, and when the thickness of the medium is small, it is difficult to ensure that the bottommost medium is pushed to achieve alignment. The inclined pneumatic boosting structure is instantly completed due to the fact that the boosting block 2141 is stretched to play a role in pushing, the distance between the stretched boosting block 2141 and the negative pressure conveying platform 100 can be designed to be smaller, and a medium with small thickness can also play a role in pushing and righting.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A negative pressure conveying platform positioning system is characterized by comprising a negative pressure conveying platform with a working area, wherein the negative pressure conveying platform comprises an adsorption device and a conveying belt wound on the outer side of the adsorption device, and an air suction hole communicated with the adsorption device is formed in the conveying belt; the adsorption device comprises a plurality of negative pressure cavities which are arranged along the conveying direction, the negative pressure cavities of the working area are symmetrically distributed by taking the central line of the working area which is vertical to the conveying direction as a symmetrical axis, and the symmetrical negative pressure cavities are associated; the positioning line of the positioning system is the central line of the working area.
2. The system of claim 1, wherein the vacuum transfer platform comprises a plurality of transfer units arranged in a vertical transfer direction, each transfer unit comprising a suction device and a belt wound around the suction device.
3. The negative pressure transport platform positioning system of claim 2, wherein the negative pressure chambers of different transport units form several columns distributed along the transport direction, each column comprising several negative pressure chambers from different transport units arranged along the vertical transport direction, the negative pressure chambers in the same column being associated.
4. The negative pressure transport platform positioning system of claim 3, wherein two symmetrical columns of negative pressure cavities in the work area are associated.
5. The negative-pressure conveying platform positioning system according to any one of claims 1 to 4, further comprising a centering mechanism disposed above the negative-pressure conveying platform and behind the working area, wherein the centering mechanism comprises a guide rail, two symmetrically disposed pushing structures and at least one pushing driving device, wherein at least one pushing structure is slidably connected with the guide rail and is driven by the pushing driving device to slide along the guide rail.
6. The negative pressure conveying platform positioning system according to claim 5, wherein the conveying platform is further provided with a beam crossing the conveying platform and perpendicular to the conveying direction, the guide rail is formed on the beam or the beam forms the guide rail.
7. The system of claim 6, wherein the pushing structure comprises a pushing plate and a support, the pushing plate is connected to the beam through the support, and a pulley slidably connected to the beam is disposed on the support of the pushing structure slidably connected to the guide rail.
8. The negative pressure conveying platform positioning system as claimed in claim 7, wherein the bracket is -shaped and is fastened to the cross beam, and the pulley is disposed on the top and one side of the -shaped bracket.
9. The negative pressure conveying platform positioning system as claimed in claim 7, wherein the push plate is further provided with a pneumatic boosting structure on the lower side thereof, the pneumatic boosting structure comprises a boosting block and a boosting cylinder, the boosting block is connected to the boosting cylinder, and the boosting cylinder is fixed on the outer side of the push plate.
10. The negative pressure transfer platform positioning system of claim 9, wherein the pneumatic booster structure is inclined from an outer upper side to an inner lower side, and the booster block is wedge-shaped with a wedge surface facing inward and perpendicular to the transfer platform.
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| CN201922279858.7U CN211812065U (en) | 2019-12-16 | 2019-12-16 | Positioning system of negative pressure conveying platform |
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| CN201922279858.7U CN211812065U (en) | 2019-12-16 | 2019-12-16 | Positioning system of negative pressure conveying platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111038975A (en) * | 2019-12-16 | 2020-04-21 | 广州晶绘实业有限公司 | Negative pressure conveying platform positioning method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111038975A (en) * | 2019-12-16 | 2020-04-21 | 广州晶绘实业有限公司 | Negative pressure conveying platform positioning method and system |
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Effective date of registration: 20230314 Address after: 102, No.10 Yuhua Road, Jiuyu Village, Xintang Town, Zengcheng District, Guangzhou City, Guangdong Province, 511340 Patentee after: Drive Digital Electronics (Guangdong) Co.,Ltd. Address before: No.10 Yuhua Road, jiuyu Development Zone, Xintang, Guangzhou, Guangdong 511340 Patentee before: GUANGZHOU CRYSTALJET INDUSTRY Co.,Ltd. |