CN214000995U - Formula of induced drafting transmission device and printed matter detection device - Google Patents

Abstract

The utility model relates to the field of printing equipment, and discloses an air suction type transmission mechanism and a printed matter detection device, wherein the air suction type transmission mechanism comprises a support, a rotary driving assembly, a driving shaft, a first transmission shaft, a belt and an air suction assembly, a plurality of belt through holes are formed in the belt, the driving shaft and the first transmission shaft are arranged on the support at intervals and are all rotatably arranged, the driving shaft is connected with the output end of the rotary driving assembly, and the belt is wound on the driving shaft and the first transmission shaft; the subassembly that induced drafts is arranged in belt, driving shaft and the first transmission shaft and encloses the space of induced drafting of establishing formation, is provided with a plurality of air suction chambers in the space of induced drafting, and every intracavity that induced drafts all is provided with the fan, and the fan passes through the belt through-hole and adsorbs the work piece on the belt. The air suction type conveying mechanism has the advantages that air suction is uniform, smoothness of workpieces in the conveying process can be guaranteed, and conveying quality of the workpieces is guaranteed.

Description

Formula of induced drafting transmission device and printed matter detection device

Technical Field

The utility model relates to a lithography apparatus field especially relates to a formula of induced drafting transmission device and printed matter detection device.

Background

At present, fields such as lithography apparatus adopt formula of induced drafting transmission device to transmit work pieces such as printed matter usually, and formula of induced drafting transmission device mainly includes the belt of seting up the through-hole and the subassembly that induced drafts, and the subassembly that induced drafts mainly includes the fan, and formula of induced drafting transmission device during operation, the fan induced drafts through the through-hole on the belt and adsorbs the printed matter on the belt to guarantee the planarization of printed matter in the transportation. The suction type conveying mechanism is generally large in conveying distance, so that the suction force on printed matters close to the fan is large, the suction force on printed matters far away from the fan is small, the smoothness of the printed matters in the whole conveying process cannot be guaranteed, and once the printed matters are shifted or bent before the working procedures of processing or detection and the like, the printed matters cannot be recovered in the subsequent conveying process, so that the processing or detection quality of the printed matters is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a formula of induced drafting transmission device and printed matter detection device, this formula of induced drafting transmission device induced drafts evenly, can guarantee the planarization of work piece in transmission process, guarantees the transmission quality of work piece.

Therefore, the utility model adopts the following technical scheme:

an aspiration transport mechanism comprising:

the rotary driving assembly is arranged on the bracket;

the belt is provided with a plurality of belt through holes, the driving shaft and the first transmission shaft are arranged on the bracket at intervals and are rotatably arranged, the driving shaft is connected with the output end of the rotary driving assembly, and the belt is wound on the driving shaft and the first transmission shaft;

the air suction assembly is located in an air suction space formed by the belt, the driving shaft and the first transmission shaft in a surrounding mode, a plurality of air suction cavities are arranged in the air suction space, each air suction cavity is internally provided with a fan, and the fan passes through the belt through holes to adsorb workpieces onto the belt.

Preferably, the air suction assembly further comprises a ventilation plate, the ventilation plate is located above the air suction cavity and connected with the air suction cavity, a plurality of air suction through holes are formed in the ventilation plate, and the air suction through holes can be communicated with the belt through holes.

Preferably, the cross-sectional shape of the air suction through hole is a long strip.

Preferably, the air suction assembly includes:

the mounting bottom plate is arranged below the ventilating plate in parallel;

the two side plates are oppositely arranged between the ventilating plate and the mounting bottom plate, and the ventilating plate, the two side plates, the mounting bottom plate and the bracket are arranged in an enclosing manner to form an air suction chamber;

and the plurality of partition plates are uniformly arranged in the air suction chamber and divide the air suction chamber into a plurality of air suction cavities.

As preferred, the subassembly that induced drafts is still including the regulating plate that is equipped with a plurality of via holes, regulating plate parallel arrangement in the ventilating plate with between the mounting plate, with will the air suction chamber is separated and is formed a plurality of one-to-one and transition chamber and the installation cavity that distributes from top to bottom, the fan set up in the installation cavity, the fan can be through corresponding the via hole with the transition chamber will the work piece adsorb in on the belt.

Preferably, each transition cavity corresponds to a plurality of the through holes.

Preferably, each fan is covered by a shell with an upper opening and a lower opening, the shell is arranged on the mounting bottom plate, and the upper opening of the shell extends into the through hole.

Preferably, the air suction assembly further comprises a plurality of supporting columns, and the supporting columns are uniformly erected in the air suction cavity.

Preferably, the bracket is further provided with a junction box, and the fan is electrically connected with an external power supply through the junction box.

The utility model also provides a printed matter detection device, it includes above-mentioned formula transport mechanism that induced drafts.

The utility model has the advantages that:

the utility model provides an induced draft transmission device, including support, rotary drive subassembly, driving shaft, first transmission shaft, belt and induced draft subassembly, seted up a plurality of belt through-holes on the belt, driving shaft and first transmission shaft interval and all rotate and set up on the support, the driving shaft is connected with rotary drive subassembly's output, the belt is around locating on driving shaft and the first transmission shaft; the subassembly that induced drafts is located belt, driving shaft and first transmission shaft and encloses the space of establishing the formation that induced drafts, is provided with a plurality of air suction chambeies in the space of induced drafting, and every air suction intracavity all is provided with the fan, and the fan passes through the belt through-hole and adsorbs the work piece on the belt, and every fan corresponds an area of belt, can improve the homogeneity that the belt induced drafts, and the part adsorption energy of avoiding the belt to keep away from the fan is poor. The air suction type conveying mechanism has the advantages that air suction is uniform, smoothness of workpieces in the conveying process can be guaranteed, and conveying quality of the workpieces is guaranteed.

The utility model provides a printed matter detection device, including the above-mentioned formula transmission structure that induced drafts, through guaranteeing the planarization of work piece in transmission process, avoid the work piece to warp the interference to the detection, can improve the detection precision of work piece.

Drawings

Fig. 1 is a schematic structural diagram of a belt transmission mechanism provided in an embodiment of the present invention;

fig. 2 is an assembly view of the drive shaft, the first drive shaft, the drive tensioner assembly and the belt provided by the embodiment of the present invention;

fig. 3 is a cross-sectional view of a first drive shaft, a bracket and a mounting assembly provided by an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a printed matter detection apparatus provided by an embodiment of the present invention at a first viewing angle;

fig. 5 is a schematic structural diagram of an air suction assembly provided in an embodiment of the present invention;

fig. 6 is a schematic structural view of the air suction assembly with the hidden ventilation plate provided in the embodiment of the present invention;

fig. 7 is a schematic structural view of the air suction assembly provided by the embodiment of the present invention with the ventilation plate and the adjusting plate hidden;

fig. 8 is a cross-sectional view of a paper receiving assembly provided by an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a printed matter detection device provided by an embodiment of the present invention at a second viewing angle.

In the figure:

1. a support; 2. a rotary drive assembly; 3. a drive shaft; 4. a first drive shaft;

5. a belt; 51. a belt through hole;

6. mounting the component; 61. an installation part; 611. a spherical cavity; 612. tensioning the strip-shaped holes; 613. a first mounting plate; 614. a second mounting plate; 62. a ball head portion; 621. a ball head piece; 6211. a spherical bulge; 622. transmitting a dynamic and static mandrel;

7. a drive tension assembly; 71. a second drive shaft; 72. tensioning the static mandrel;

8. moving the tensioning assembly; 81. tensioning the screw; 82. a fixed block;

9. an air suction assembly; 91. a ventilation board; 911. an air suction through hole; 92. a side plate; 93. mounting a bottom plate; 94. a partition plate; 95. an adjusting plate; 951. a via hole; 96. a support pillar; 97. a housing;

100. a belt drive mechanism;

200. a detection mechanism; 201. a detection component; 202. a detection frame;

300. a paper receiving mechanism; 301. a rubber roller; 302. an adjustment section; 3021. a moving member; 3022. a base; 303. a paper connecting static mandrel; 3031. prevent changeing the platform.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 9, the present embodiment provides a printed matter detection apparatus, which is mainly used for detecting a printed workpiece to determine whether the printing of the workpiece meets requirements, so as to separate a workpiece that is qualified in printing from a workpiece that is unqualified in printing in a subsequent process. The printed matter detection device comprises a belt transmission mechanism 100, a detection mechanism 200, a paper receiving mechanism 300 and a base, wherein the belt transmission mechanism 100 and the paper receiving mechanism 300 are both arranged on the base, the belt transmission mechanism 100 is used for transmitting a workpiece, the belt transmission mechanism 100 comprises a support 1, a belt 5, a driving shaft 3 and a first transmission shaft 4, the driving shaft 3 and the first transmission shaft 4 are arranged on the support 1 at intervals and are rotationally arranged on the support 1, the belt 5 is wound on the driving shaft 3 and the first transmission shaft 4, the position of the first transmission shaft 4 relative to the support 1 is adjustable, the belt 5 wound on the first transmission shaft 4 and the driving shaft 3 can be tensioned by adjusting the distance between the first transmission shaft 4 and the driving shaft 3, the belt 5 is prevented from further moving, the stable operation of the belt 5 is ensured, and therefore the smoothness of the workpiece transmitted on the belt 5 and the stability of workpiece transmission are ensured; the detection mechanism 200 is arranged above the belt transmission mechanism 100, and the detection mechanism 200 is configured to detect the workpiece on the belt transmission mechanism 100 to judge whether the processing quality of the workpiece meets the requirement or not and transmit detection information to a subsequent device to separate the qualified workpiece from the unqualified workpiece; the paper receiving mechanism 300 is located above the upstream of the belt transmission mechanism 100, and receives the workpiece from the previous process together with the belt transmission mechanism 100, the workpiece is transmitted between the paper receiving mechanism 300 and the belt transmission mechanism 100, the paper receiving mechanism 300 applies a certain pressure to the workpiece, so that the workpiece can be stably transmitted to the belt transmission mechanism 100, and the workpiece is prevented from shifting or deforming in the process of being transmitted to the belt transmission mechanism 100, and the detection precision of the detection mechanism 200 is prevented from being influenced. This printed matter detection device can carry out the tensioning to belt 5, prevents belt 5 drunkenness, avoids work piece skew or warp, guarantees the planarization of work piece and the stability of transmission, and the detection precision of work piece is high.

Optionally, in order to improve the anti-shake ability of the printed product detection device, the base is made by a casting process, and the stability of the base can be improved by adjusting the casting time, so that the shake amount of the printed product detection device can still be in a small range under the condition of high-speed work, the printed product detection device can stably transmit a workpiece and the workpiece has good flatness when the printed product detection device works at a high speed, and therefore the interference on the workpiece when the detection mechanism 200 detects the workpiece is small, the detection precision and the detection efficiency are high, the reliability of the printed product quality detection is good, and the application range is wide. In addition, in the embodiment, the base comprises two cast iron plates and a cross beam, the two cast iron plates are arranged oppositely, and the cross beam is arranged between the two cast iron plates, so that the structure is stable; in addition, other mechanisms can be installed between the two cast iron plates, so that the printed matter detection device is compact in structure and small in occupied installation space. Of course, the setting of the base is not limited to this, and may also be other structures, and the setting may be performed according to actual assembly and installation requirements, which is not limited in this embodiment.

In order to provide power for the belt transmission mechanism 100, the belt transmission mechanism 100 further includes a rotation driving assembly 2, the rotation driving assembly 2 is disposed on the support 1, and the driving shaft 3 is connected to an output end of the rotation driving assembly 2. The rotation driving assembly 2 includes, as an example, a rotation motor which drives the driving shaft 3 to rotate through a synchronizing wheel, which is a prior art and is not redundantly described in this embodiment. Of course, in other embodiments, the rotary driving assembly 2 may be in other forms, and any rotary driving assembly 2 capable of driving the driving shaft 3 to rotate relative to the support 1 may be adopted.

The belt drive mechanism 100 is described below with reference to fig. 1 to 3.

In order to tension the belt 5, it is necessary to adjust the distance between the first transmission shaft 4 and the axle shaft 3 so that the first transmission shaft 4 moves relative to the frame 1. Specifically, when the belt 5 is shifted on one side in its conveying direction, it is necessary to adjust the position of the end portion on the corresponding side of the first transmission shaft 4 to tension the belt 5. In the adjustment process of first transmission shaft 4, the central axis that probably appears 4 both ends of first transmission shaft is misaligned the condition, and first transmission shaft 4 will take place to buckle this moment, will receive the influence around the transmission course of locating belt 5 on driving shaft 3 and the first transmission shaft 4 for the stability variation in the planarization of work piece and the transmission course, thereby influence detection mechanism 200's detection result, errors such as good product misstatement appear, reduction printed matter detection device's detection precision. In order to avoid bending of the first transmission shaft 4, when the central axes of the two end parts of the first transmission shaft 4 are not coincident, self-adaptive adjustment can be carried out so as to ensure the smoothness and the stable transmission of the belt 5, the central axes of the two ends of the first transmission shaft 4 can be automatically aligned in the process that the first transmission shaft 4 moves along the support 1, and the bending of the first transmission shaft 4 is avoided.

Specifically, the belt transmission mechanism 100 includes a mounting assembly 6, the mounting assembly 6 includes a ball head portion 62 and two mounting portions 61, the two mounting portions 61 are respectively located at two sides of the first transmission shaft 4 and can both move relative to the bracket 1, so as to adjust the positions of two ends of the first transmission shaft 4 and tension the belt 5; the mounting part 61 is provided with a spherical cavity 611, the first transmission shaft 4 is rotatably arranged on the spherical head part 62, the two ends of the spherical head part 62 are provided with spherical protrusions 6211, and the spherical protrusions 6211 are in rolling fit in the spherical cavities 611 on the corresponding sides. When the central axes of the two ends of the first transmission shaft 4 are not coincident in the tensioning process, the ball head part 62 can rotate in the ball cavity 611 matched with the ball protrusion 6211 by a certain angle, so that the two ends of the first transmission shaft 4 are automatically aligned, and the bending of the first transmission shaft 4 is avoided. This belt drive mechanism 100's simple structure just practices thrift the space, and the tensioning of belt 5 is simple and convenient, and can avoid causing first transmission shaft 4 crooked because the adjustment volume at first transmission shaft 4 both ends is different at the in-process of tensioning, can guarantee the planarization and the stationarity of belt 5 working process, and then guarantee the level and smooth and the precision that the work piece detected of work piece. The belt transmission mechanism 100 provided by the embodiment can ensure that the transverse movement amount of the belt 5 is within the range of +/-0.2 mm, and the flatness and the transmission stability of the belt 5 are good.

Optionally, in order to reduce the effect of the shake on the transmission of the belt transmission mechanism 100, the ball head 62 includes a driving and static mandrel 622 and two ball head pieces 621, and the first transmission shaft 4 is sleeved on the driving and static mandrel 622 and can rotate relative to the driving and static mandrel 622; the two ball head pieces 621 are respectively and fixedly arranged at two ends of the dynamic and static transmission mandrel 622, and each ball head piece 621 is provided with a spherical bulge 6211. Because the shake will decline gradually when transmitting between each spare part, locate first transmission shaft 4 cover on transmission sound dabber 622 in order to realize that first transmission shaft 4 rotates with installation department 61 and be connected, can make the shake of first transmission shaft 4 pass through transmission sound dabber 622, bulb piece 621, installation department 61 and spread into support 1 after declining to reduce belt drive mechanism 100's shake degree, improve belt drive mechanism 100's stability of transmission, make it still can guarantee transmission quality when high-speed work. The connection mode of the first transmission shaft 4 and the ball head 62 is not limited to this, and the first transmission shaft 4 may be rotatably provided on the ball head 62. Of course, the above is only a preferred embodiment, the arrangement manner of the first transmission shaft 4 is not limited to this, in other embodiments, when the central axes of the two ends of the first transmission shaft 4 need to be automatically aligned in the adjustment process, the first transmission shaft 4 may be sleeved on the static transmission shaft 622, and the static transmission shaft 622 is directly connected to the mounting portion 61, which is not limited in this embodiment.

In order to reduce the friction between the first transmission shaft 4 and the transmission stationary spindle 622, the first transmission shaft 4 is disposed on the transmission stationary spindle 622 through a bearing. Specifically, the first transmission shaft 4 and the transmission stationary spindle 622 are connected by two bearings. In order to install the bearing, both ends of the first transmission shaft 4 are both inwards recessed to form shaft necks, shaft shoulders are arranged on the corresponding transmission static mandrel 622, one side of the bearing is respectively connected with the shaft necks on the first transmission shaft 4 and the shaft shoulders on the transmission static mandrel 622 in a butting mode, in order to limit the other side of the bearing, an end cover is further arranged on the other side of the bearing, and the bearing, the first transmission shaft 4 and the transmission static mandrel 622 are connected together through the end cover. In addition, in order to further limit the movement of the first transmission shaft 4 along the axial direction of the transmission stationary spindle 622, a limit sleeve is further provided on the transmission stationary spindle 622. Of course, the connection mode of the first transmission shaft 4 and the transmission stationary spindle 622 is not limited to this, and may be connected through other structures as long as the first transmission shaft 4 is sleeved on the transmission stationary spindle 622 and can rotate around the transmission stationary spindle 622.

Optionally, the transmission quiet spindle 622 is split type structure with two ball pieces 621 at its both ends, and the installation of transmission quiet spindle 622 is made things convenient for to split type structure's setting, and in addition, because the shake will further decrement when transmitting between transmission quiet spindle 622 and ball piece 621, split type result can also further reduce the influence of shake to belt drive mechanism 100. Of course, in other embodiments, the transmission stationary core shaft 622 and the two ball head pieces 621 may also be an integrated structure, and may be configured according to actual requirements, which is not limited in this embodiment.

Furthermore, in order to form the spherical cavity 611 and facilitate the installation of the spherical protrusion 6211 and the spherical cavity 611, the installation part 61 further includes, for example, a first installation plate 613 and a second installation plate 614, as shown in fig. 3, the second installation plate 614 is capable of moving relative to the bracket 1 in a direction for tensioning the belt 5, the first installation plate 613 is disposed on a side of the second installation plate 614 away from the bracket 1, and opposite sides of the first installation plate 613 and the second installation plate 614 are each provided with a hemispherical cavity, and the two hemispherical cavities are capable of cooperating to form the spherical cavity 611. Exemplarily, when the first transmission shaft 4, the stationary transmission core shaft 622 and the mounting portion 61 are assembled, the first transmission shaft 4 is connected to the stationary transmission core shaft 622 through a bearing, an end cover and a limiting sleeve, the second mounting plate 614 is disposed on the support 1, one end of the stationary transmission core shaft 622 extends into the hemispherical cavity of the second mounting plate 614, the ball head 621 penetrates through the hemispherical cavity of the second mounting plate 614 and is sleeved at one end of the stationary transmission core shaft 622, the ball head 621 is fixedly connected to the stationary transmission core shaft 622, and the first mounting plate 613 is fixed to the second mounting plate 614, so that the first transmission shaft 4 is mounted. Wherein, the ball head 621 and the transmission stationary spindle 622 can be fixedly connected by bolts. Of course, the order of mounting the first transmission shaft 4 and the mounting assembly 6 is not limited thereto, and may be adjusted according to actual mounting requirements.

In order to conveniently adjust the position of the first transmission shaft 4 to tension the belt 5 and save the installation space, as shown in fig. 1, the belt transmission mechanism 100 further includes a movable tensioning assembly 8, the movable tensioning assembly 8 includes a tensioning screw 81 and a fixing block 82 disposed on the bracket 1, a tensioning threaded through hole is disposed on the fixing block 82, one end of the tensioning screw 81 abuts against the installation portion 61, and the other end is in threaded connection with the tensioning threaded through hole. When the belt 5 is tensioned, one end of the tensioning screw 81, which is far away from the mounting portion 61, is screwed, so that the mounting portion 61 is driven to move by the pushing action of the tensioning screw 81 on the mounting portion 61, and the tensioning of the belt 5 is realized. Because the tensioning of belt 5 usually needs to remove first transmission shaft 4 to the direction of keeping away from driving shaft 3, consequently can satisfy the tensioning demand of belt 5 through the one-way adjustment first transmission shaft 4's of tensioning screw 81 to the push action of installation department 61 position, simple structure and convenient maintenance, in addition, realize through screw-thread fit that the adjustment of installation department 61 position can also reach laborsaving effect.

Illustratively, the mounting portion 61 is provided with a tensioning slot 612, the tensioning slot 612 is arranged along a direction capable of tensioning the belt 5, and a tensioning connector can pass through the tensioning slot 612 and be fixed on the bracket 1, so that the mounting portion 61 can move relative to the bracket 1 and be fixed at a proper position through the tensioning connector to adjust the position of the first transmission shaft 4 and tension the belt 5.

Optionally, the mounting portion 61 is provided with two tensioning bar-shaped holes 612, the two tensioning bar-shaped holes 612 are arranged at two ends of the mounting portion 61 in parallel, the two tensioning bar-shaped holes 612 are arranged so that the mounting portion 61 can be stably adjusted without shaking, and the mounting portion 61 cannot rotate during the position adjustment process. In this embodiment, two tension bar holes 612 are provided on the second mounting plate 614 along a direction parallel to the conveying direction of the belt 5. In addition, a mounting hole is provided on the bracket 1 to fix the tension connection member, thereby disposing the mounting portion 61 on the bracket 1. Exemplarily, the tensioning connecting piece can be a bolt, the bolt connection is stable and reliable, the structure is simple, and the installation and the disassembly are convenient. Of course, the arrangement of the tension bar hole 612 is not limited thereto, and in other embodiments, the tension bar hole 612 may be arranged at an angle to the conveying direction of the belt 5 as long as the position adjustment of the mounting portion 61 to tension the belt 5 is achieved. In addition, the number of the tensioning strip-shaped holes 612 is not limited to this, and may be set according to actual needs, which is not limited by this embodiment.

Further, in order to increase the moving range of the mounting portion 61 and enhance the adjusting capability of the movable tensioning assembly 8, a plurality of mounting holes are formed in the bracket 1, at least one tensioning connecting piece passes through the tensioning strip-shaped hole 612 and then is selectively fixed in the mounting hole to adjust and fix the position of the mounting portion 61, and the mounting portion 61 can be adjusted to a proper position and then fixed on the bracket 1 to flexibly adjust the position of the mounting portion 61. Of course, the installation portion 61 is not limited to this, and other configurations are possible as long as the installation portion 61 can be fixed to the bracket 1 while being adjustable in position in the direction in which the belt 5 is tensioned.

Exemplarily, the tensioning of the belt 5 is as follows: the tension connecting member connected to the mounting hole is loosened slightly, and then the tension screw 81 is screwed so that the tension screw 81 moves in a direction approaching the mounting portion 61, thereby pushing the mounting portion 61 to move, the corresponding mounting portion 61 can slide along the tension connecting member, and when the mounting portion 61 is adjusted to a proper position, the tension connecting member is screwed, that is, the mounting portion 61 is fixed and the tension of the belt 5 is completed. The tensioning screw 81 and the fixing block 82 are simple in structure, tensioning connecting pieces only need to be unscrewed during tensioning at each time, parts such as the tensioning connecting pieces do not need to be detached, operation is easy and labor-saving, and the position of the mounting portion 61 can be conveniently adjusted to tension the belt 5. In addition, when the adjustment range of the tensioning strip-shaped hole 612 cannot meet the tensioning requirement of the belt 5, the tensioning connecting piece can be unscrewed and taken down, the position of the installation part 61 is adjusted, the installation part 61 drives the first transmission shaft 4 to move towards the direction far away from the driving shaft 3, the tensioning connecting piece penetrates through the tensioning strip-shaped hole 612 and then is fixed in the corresponding installation hole, and the tensioning step is repeated to tension the belt 5. Of course, the structure of the moving tension assembly 8 is not limited thereto as long as the position adjustment of the mounting portion 61 to tension the belt 5 can be achieved.

In this embodiment, both sides of the support 1 are provided with a transmission strip hole right opposite to the first transmission shaft 4, the first transmission shaft 4 is sleeved on the transmission static mandrel 622, and both ends of the transmission static mandrel 622 respectively penetrate through the two transmission strip holes and are fixed on the support 1 through the ball head 621 and the mounting portion 61. The transmission strip-shaped hole can guide the motion of the transmission and static mandrel 622 and the installation part 61, and can also play a certain limiting role in the transmission direction perpendicular to the belt 5.

The scope of use of the mobile tensioning assembly 8 is not limited thereto and may be used with other belt drive mechanisms. In other embodiments, the first transmission shaft 4 may be directly rotatably disposed on the mounting portion 61, in which case both ends of the first transmission shaft 4 respectively pass through the two transmission bar holes and are connected to the mounting portion 61, and the position of the mounting portion 61 is adjusted by moving the tensioning assembly 8.

Optionally, to further achieve the tensioning of the belt 5, the belt drive mechanism 100 further comprises a drive tensioning assembly 7, the drive tensioning assembly 7 being disposed on the bracket 1 and configured to tension the belt 5.

Specifically, the transmission tensioning assembly 7 comprises a plurality of second transmission shafts 71, the second transmission shafts 71 are rotatably arranged on the support 1, and the belt 5 is sequentially wound on the driving shaft 3, the first transmission shaft 4 and the plurality of second transmission shafts 71. As shown in fig. 2, in the present embodiment, the transmission tensioning assembly 7 includes three second transmission shafts 71, wherein one second transmission shaft 71 and the first transmission shaft 4 are disposed on one side of the support 1, and the other two second transmission shafts 71 and the driving shaft 3 are disposed on the other side of the support 1. Of course, the number and arrangement of the driving shaft 3, the first transmission shaft 4, and the second transmission shaft 71 are not limited to this, and may be flexibly designed according to actual requirements.

In order to further reduce the vibration of the belt transmission mechanism 100 during operation, so that the belt transmission mechanism 100 can smoothly transmit workpieces at a higher transmission speed, and increase the application range of the belt transmission mechanism 100, in this embodiment, the transmission tensioning assembly 7 further includes a plurality of tensioning static mandrels 72 in one-to-one correspondence with the second transmission shafts 71, both ends of the tensioning static mandrels 72 are fixed on the bracket 1, and each second transmission shaft 71 is sleeved on the corresponding tensioning static mandrel 72 and can rotate relative to the corresponding tensioning static mandrel 72. When the belt transmission mechanism 100 works, the vibration of the second transmission shaft 71 is transmitted to the bracket 1 through the static tensioning shaft 72, and the energy of the vibration is gradually weakened, so that the shaking of the belt transmission mechanism 100 is reduced. In other embodiments, in order to further reduce the jitter of the belt transmission mechanism 100, the driving shaft 3 may also be disposed on the tension static shaft 72, and the driving shaft 3 is directly driven to rotate by the rotation driving assembly 2, which is not limited in this embodiment. Practice proves that the printed matter detection device provided by the embodiment can ensure that the jitter amount of the belt transmission mechanism 100 is less than 50 microns at the transmission speed of 300 m/min.

In order to reduce the friction between the second transmission shaft 71 and the stationary tensioner shaft 72, the second transmission shaft 71 and the stationary tensioner shaft 72 are also connected by two bearings. The second transmission shaft 71 and the static tension mandrel 72 are connected in a similar manner to the first transmission shaft 4 and the static tension mandrel 622, and redundant description is omitted in this embodiment.

Of course, the application range of the transmission tensioning assembly 7 is not limited to this, and the transmission tensioning assembly can also be used in other belt transmission mechanisms, and this embodiment is not limited to this.

Optionally, in order to improve the smoothness of the workpiece when the workpiece is conveyed on the belt 5, reduce the false alarm rate of the detection mechanism 200, and improve the detection accuracy of the printed matter detection device, as shown in fig. 2 and 5, a plurality of belt through holes 51 are formed in the belt 5, the belt transmission mechanism 100 further includes an air suction assembly 9, and the air suction assembly 9 can adsorb the workpiece on the belt 5 through the belt through holes 51. In the present embodiment, the plurality of belt through holes 51 are uniformly arranged to uniformly distribute the suction force, which can improve the flatness of the workpiece.

Specifically, the air suction assembly 9 is positioned in an air suction space formed by surrounding the belt 5, the driving shaft 3 and the first transmission shaft 4, so that the structure of the belt transmission mechanism 100 is compact, and the installation space is saved; because the area of the part of the belt 5 used for conveying the workpiece is larger, when one fan is adopted for adsorbing the workpiece, only the part of the belt 5 opposite to the air suction inlet of the fan has large suction force, and the part of the belt far away from the air suction inlet of the fan has small suction force, so that the smoothness of the workpiece on the whole conveying plane of the belt 5 cannot be ensured. In order to improve the adsorption capacity and the air suction uniformity of the air suction assembly 9, a plurality of air suction cavities are arranged in the air suction space, a fan is arranged in each air suction cavity, and the fan adsorbs a workpiece on the belt 5 through the belt through hole 51. The setting of a plurality of air suction chambers can make induced draft evenly, and every fan corresponds an area of belt 5, avoids belt 5 to keep away from the partial adsorption efficiency of fan poor, has increased the adsorption area of belt 5, can guarantee the planarization of work piece at the in-process of transmission, reduces the skew or the deformation of work piece in the transmission course, guarantees the transmission quality of work piece to improve this printed matter detection device's detection precision. In addition, the setting of a plurality of fans makes every fan only need very little power can guarantee adsorption quality, can the energy saving, and the power consumption is little, and every fan can be dismantled alone, can in time replace when one of them fan trouble, does not influence printed matter detection device's work, makes things convenient for printed matter detection device's maintenance simultaneously. For example, six fans are provided in the embodiment, and the total power of the six fans is 720W, so that the adsorption requirement of the workpiece can be met. Of course, the arrangement of the air suction assembly 9 is not limited to this, as long as the air suction assembly 9 can suck the workpiece onto the belt 5 through the belt through hole 51 on the belt 5.

Optionally, as shown in fig. 5, the air suction assembly 9 further includes a ventilation plate 91, the ventilation plate 91 is located above the air suction cavity and connected to the air suction cavity, a plurality of air suction through holes 911 are provided on the ventilation plate 91, and the air suction through holes 911 can be communicated with the belt through holes 51. Because belt 5 is longer along the both sides distance of transmission direction, the middle part rigidity of belt 5 is relatively weak, the deformation can take place under the effort of the subassembly 9 that induced drafts, influence the planarization of belt 5 and the stationarity of transmission, and then influence the stationarity of the work piece of transmission on belt 5 and detection result of detection mechanism 200, consequently set up ventilating plate 91 in the below of one side of belt 5 transmission work piece, can provide the supporting role to belt 5 when the formation chamber that induced drafts increases suction, improve the planarization of belt 5 and the stationarity of transmission, thereby improve printed matter detection device's detection precision.

In this embodiment, since the position of the belt through hole 51 disposed on the belt 5 changes constantly when the belt 5 is in operation, in order to reduce the situation that the suction force on the workpiece on the belt 5 is small when the belt through hole 51 and the suction through hole 911 are not aligned during the operation of the belt 5 as much as possible, the suction through hole 911 is set to be a long strip shape, so that the suction area is increased as much as possible while the ventilation plate 91 supports the belt 5, the workpiece is smoothly adsorbed on the belt 5, and the detection accuracy of the workpiece is improved.

Optionally, as shown in fig. 5 to 7, the air suction assembly 9 further includes a mounting bottom plate 93, two side plates 92 and a plurality of partition plates 94, wherein the mounting bottom plate 93 is disposed in parallel below the ventilation plate 91; the two side plates 92 are oppositely arranged between the ventilating plate 91 and the mounting bottom plate 93, and the ventilating plate 91, the two side plates 92, the mounting bottom plate 93 and the bracket 1 are enclosed to form an air suction chamber; the plurality of partition plates 94 are uniformly arranged in the air suction chamber and divide the air suction chamber into a plurality of air suction cavities. When the printed matter detection device works, the fan adsorbs the workpiece on the belt 5 through the air suction through hole 911 on the ventilating plate 91 and the belt through hole 51 on the belt 5, so that the smoothness of the workpiece is ensured, and the detection precision of the workpiece is improved.

When the air suction assembly 9 adsorbs a workpiece, although the area of the belt 5 corresponding to each air suction cavity is reduced by arranging the plurality of air suction cavities, the adsorption capacity of the fan far away from the air suction opening is smaller than that of the fan near the air suction opening, the air suction is uneven, in order to further improve the adsorption uniformity of the air suction assembly 9, as shown in fig. 6-7, the air suction assembly 9 further comprises an adjusting plate 95 provided with a plurality of through holes 951, the adjusting plate 95 is arranged between the ventilating plate 91 and the mounting base plate 93 in parallel to divide the air suction cavities into a plurality of transition cavities and mounting cavities which are in one-to-one correspondence and distributed up and down, the fan is arranged in the mounting cavities, the fan can adsorb the workpiece on the belt 5 through the corresponding through the through holes 951 and the transition cavities, compared with the fan directly sucking air towards the belt 5, the air suction can be homogenized in the transition cavities by the transition cavities towards the belt 5, so that the suction force on the corresponding parts on the belt 5 is even, the adsorption effect to the work piece is good, can avoid the not even induced drafting that the distance difference of the different parts of belt 5 and the inlet scoop of fan arouses. In this embodiment, the adjusting plate 95 is disposed near the ventilating plate 91, so as to reduce the height of the transition chamber and the volume of the transition chamber, thereby improving the air suction capability of the air suction assembly 9 as much as possible at a certain working efficiency of the fan. Certainly, the setting of the fan is not limited to this, and in other embodiments, one transition cavity may also correspond to a plurality of via holes 951 to further enhance the air suction capability of the air suction assembly 9, and the setting may be performed according to the actual air suction requirement, and this embodiment does not limit this. In addition, mounting plate 93 is a plurality of backup pads in this embodiment, and a plurality of backup pads are even and the interval sets up on support 1, and the fan sets up in the backup pad, can save material, practices thrift printed matter detection device's manufacturing cost and alleviates printed matter detection device's weight.

Optionally, each fan is covered by a housing 97 having an upper opening and a lower opening, the housing 97 is disposed on the mounting base plate 93, and the upper opening of the housing 97 extends into the through hole 951. The inlet scoop of fan is linked together through shell 97 and transition chamber, can make the regional more concentrated that induced drafts of fan, and the work efficiency of fan is high, and is better to the adsorption effect of work piece.

Exemplarily, in this embodiment, the air suction assembly 9 further includes a plurality of support columns 96, the plurality of support columns 96 are disposed in parallel with each other and uniformly stand in the air suction cavity, and both ends of each support column 96 are respectively connected to the mounting bottom plate 93 and the ventilation plate 91 to support the ventilation plate 91, so as to prevent the middle portion of the ventilation plate 91 from being weak in rigidity and thus from deforming, further improve the flatness of the belt 5, and ensure the detection accuracy of the workpiece. The number of the support columns 96 in this embodiment is eight, and the eight support columns 96 are spaced and uniformly arranged in the suction cavity near the side plate 92, although the number and arrangement manner of the support columns 96 are not limited thereto, and the arrangement may be performed according to actual requirements.

In order to provide power for the fan and enable the printed matter detection device to be tidy and easy to distinguish in order to facilitate the electric connection of the fan and an external power supply, a junction box is further arranged on the support 1, and the fan is electrically connected with the external power supply through the junction box. Exemplarily, the wire sets up and laminates on support 1 along the inside profile of support 1, and the wire both ends link to each other with fan and terminal box respectively to realize the electricity of fan and terminal box and a plurality of wires are clean and tidy orderly in support 1 is inside, make things convenient for the installation and the maintenance of fan, and can not cause the interference to other structures of printed matter detection device inside. Of course, the arrangement of the junction box is not limited to this, and the junction box can be arranged according to actual assembly requirements as long as the electric connection between the fan and the external power supply can be realized.

Of course, the application range of the air suction assembly 9 is not limited to this, and the air suction assembly can also be used in other belt transmission mechanisms, which is not limited in this embodiment.

The paper feeding mechanism 300 is described below with reference to fig. 4 and 8.

In order to stably transmit the workpiece to the transmission mechanism and avoid the workpiece from deviating or deforming in the process of transmitting the workpiece to the transmission mechanism, the paper receiving mechanism 300 comprises a mounting frame, a rubber roller 301 and two adjusting parts 302, the mounting frame is positioned above the belt transmission mechanism 100, and the mounting frame is fixedly arranged on the support 1; two regulating parts 302 set up in the both ends of rubber roll 301, in order to make the position of paper receiving mechanism 300 adjust in order to be applicable to the work piece of different thickness, regulating part 302 includes moving member 3021 and sets up the base 3022 on the mounting bracket, is equipped with the recess on base 3022, and moving member 3021 sets up in the recess and can reciprocate along the recess, and rubber roll 301 rotates and sets up on moving member 3021. When a workpiece is transmitted to the printed matter detection device from the previous process for detection, the workpiece is easy to deviate and deform when entering the printed matter detection device, the rubber roller 301 can act together with the belt transmission mechanism 100 to apply certain pressure to the workpiece, so that the workpiece is stably transmitted to the belt transmission mechanism 100 and is transmitted to the lower part of the detection mechanism 200 by the belt 5 for detection. In addition, the surface of the rubber roller 301 is soft, and the processed workpiece cannot be damaged. Because different workpiece thicknesses may be different, the paper receiving effect of the rubber roll 301 is poor when a thinner workpiece passes between the paper receiving mechanism 300 and the belt transmission mechanism 100, and a thicker workpiece is not easy to pass between the paper receiving mechanism 300 and the belt transmission mechanism 100, and the pressure is too large, so that the workpiece is easy to be damaged.

Illustratively, the rubber roller 301 is metal-cored and coated with vulcanized rubber on the outer surface. Of course, the material of the rubber roller 301 is not limited thereto, and other materials may be used in other embodiments as long as the paper splicing function can be achieved without damaging the workpiece.

Optionally, in order to facilitate the adjustment of the position of the rubber roller 301, the paper receiving mechanism 300 further includes a paper receiving adjusting member, and the paper receiving adjusting member passes through the moving member 3021 and is in threaded fit with the base 3022. When the position of the rubber roller 301 needs to be adjusted, the moving piece 3021 can be driven to move up and down in the base 3022 by rotating the paper receiving adjusting piece. Specifically, a reset piece is arranged between the moving piece 3021 and the base 3022, the paper receiving adjusting piece penetrates through the moving piece 3021 and is in threaded fit in the base 3022, and the upper part of the moving piece 3021 is abutted against the paper receiving adjusting piece under the action of the reset piece. Of course, the connection manner of the moving member 3021 and the base 3022 is not limited thereto as long as it is achieved that the moving member 3021 can move up and down in the base 3022 along the groove.

Illustratively, the paper receiving adjusting piece is a bolt, and the resetting piece is a spring. In this embodiment, one adjusting portion 302 includes two splicing adjusting members and two returning members, so that the installation of the rubber roller 301 is more reliable. Specifically, be provided with the shoulder hole on moving member 3021, the tip of shoulder hole up, the threaded hole of shoulder hole and base 3022 is worn to locate in proper order by the paper receiving adjusting part, and the spring housing is located on the paper receiving adjusting part and is held in the main aspects of shoulder hole, adopts this kind of setting, can save arrangement space. Of course, the types and the number of the paper receiving adjusting piece and the resetting piece are not limited to the above, and the paper receiving adjusting piece and the resetting piece can be arranged according to actual installation requirements.

In order to further increase rubber roll 301's control range to increase the application scope of paper receiving subassembly 300, be provided with the paper receiving bar hole on the mounting bracket, the paper receiving bar hole extends along vertical direction, and one side that base 3022 is close to the mounting bracket is equipped with paper receiving thread through-hole, and the paper receiving connecting piece can pass paper receiving bar hole and with paper receiving thread through-hole threaded connection. When the adjusting range of the adjusting part 302 cannot meet the adjusting requirement of the rubber roller 301, the paper receiving connector can be unscrewed, so that the paper receiving connector slides in the paper receiving strip-shaped hole to adjust the position of the adjusting part 302, and when the adjusting part 302 is adjusted to a proper position, the paper receiving connector is screwed down to fix the adjusting part 302. In this embodiment, the number of the paper connecting connectors is two to ensure the installation stability of the adjusting part 302. Of course, the installation manner of the adjusting portion 302 is not limited to this, and any structure that can realize the up-and-down movement of the adjusting portion 302 with respect to the mounting frame and can fix the adjusting portion 302 after the movement can be adopted.

Optionally, in order to prevent the moving member 3021 from moving along the axis direction of the rubber roll 301 when moving in the groove of the base 3022, a baffle is connected to a side of the base 3022 away from the rubber roll 301 to limit the moving member 3021.

In order to improve the precision of the printed matter detection device and further reduce the shake of the printed matter detection device, in this embodiment, the paper receiving mechanism 300 further includes a paper receiving stationary core shaft 303, the rubber roller 301 is sleeved on the paper receiving stationary core shaft 303 and can rotate relative to the paper receiving stationary core shaft 303, and two ends of the paper receiving stationary core shaft 303 are respectively connected with the moving member 3021 on the corresponding side. In order to reduce friction, the rubber roller 301 is arranged on the paper receiving static mandrel 303 through a bearing, the installation mode of the rubber roller 301 and the third static mandrel 303 is the same as that of the second transmission shaft 71 and the tensioning static mandrel 72, and redundant description is not provided in the application.

Specifically, in order to realize the connection between the third static mandrel 303 and the moving member 3021, both ends of the third static mandrel 303 are both recessed inward to form an anti-rotation platform 3031, the moving member 3021 is provided with a paper receiving through hole, the cross-sectional shape of the paper receiving through hole is the same as the end face shape of the paper receiving static mandrel 303, the paper receiving static mandrel 303 is arranged in the paper receiving through hole in a penetrating manner, and the paper receiving static mandrel 303 can be prevented from rotating and affecting the paper receiving of the rubber roller 301. As an example, the paper splicing stationary core shaft 303 and the moving member 3021 may be fixed by threaded connection, a bolt may pass through the moving member 3021 to abut against the rotation-preventing platform 3031 of the paper splicing stationary core shaft 303, or a bolt may pass through the moving member 3021 and then be in threaded connection with the paper splicing stationary core shaft 303, which may be set according to actual installation requirements, and this embodiment does not limit this.

In this embodiment, an external driving member is not provided to drive the rubber roller 301 to rotate, but the rubber roller 301 is driven to rotate by the transmission of the belt 5. Specifically, when the printed matter detection device works, the belt 5 drives the conveyed workpiece to move, the rubber roller 301 is driven to rotate through the interaction of the workpiece and the rubber roller 301, an external driving piece is not required to be arranged, and the cost and the installation volume of the printed matter detection device can be saved. Of course, the driving method of the rubber roller 301 is not limited to this, in other embodiments, the rubber roller 301 may also be connected to an external driving element, the rubber roller 301 and the belt 5 move at the same linear velocity to enable the workpiece to be transmitted between the rubber roller 301 and the belt 5, the transmission effect is good, the driving method of the rubber roller 301 may be set according to actual requirements, and this embodiment does not limit this.

Of course, the application range of the paper receiving mechanism 300 is not limited to this, the type of the transmission mechanism is not limited to this, and the paper receiving mechanism 300 may also be used in other belt transmission mechanisms and other transmission mechanisms, which is not limited in this embodiment.

The detection mechanism 200 is described below in conjunction with fig. 4 and 9.

The detection mechanism 200 comprises a detection frame 202 and a detection assembly 201, wherein the detection frame 202 is positioned above and connected with the bracket 1; the detection assembly 201 is arranged on the detection frame 202 and used for detecting the workpiece, and by arranging the detection mechanism 200, high-quality detection of the workpiece can be realized at high speed, the detection efficiency is high, the detection precision is good, and the labor cost is saved.

Illustratively, the detecting assembly 201 includes a position sensor electrically connected to the image collector, an image collector for detecting the position of the workpiece on the belt 5 and sending an electrical signal to the image collector upon detection of the workpiece; the image collector is started when receiving the signal of the position sensor, collects the image of the workpiece and transmits the image to the processor; the processor compares and judges the image acquired by the image acquisition device with a standard image and is electrically connected with the actuator, if the image acquired by the image acquisition device is matched with the standard image, the workpiece is qualified, the processor sends an electric signal to the actuator, and the actuator is controlled to transmit the qualified workpiece to the paper delivery device; if the image acquired by the image acquisition device is different from the standard image, the workpiece is unqualified, the processor sends an electric signal to the actuator, and the actuator is controlled to transmit the unqualified workpiece to the waste device. Of course, the arrangement of the detecting element 201 is not limited to this, and the detecting element 201 may be any detecting element that can determine whether the workpiece meets the requirement.

Optionally, the detecting component 201 can move relative to the detecting frame 202 along a direction perpendicular to the conveying direction of the belt 5, and when the printed matter detecting device works, the position of the detecting component 201 can be adjusted according to different workpieces, so that the detecting effect is better. In other embodiments, the inspection assembly 201 may also be moved in a direction perpendicular to the plane of transport of the belt 5 to accommodate inspection of different workpieces.

In order to realize the movement of the detecting component 201, the detecting mechanism 200 further includes a detecting driving component, the detecting driving component is disposed on the detecting frame 202, and an output end of the detecting driving component is connected to the detecting component 201. For example, the detection drive may be a cylinder. The detection mechanism 200 further includes a detection control member electrically connected to an input end of the detection driving member, and when the position of the detection assembly 201 is adjusted, the detection control member inputs movement information to the detection control member, and the detection control member controls the detection driving member to drive the detection assembly 201 to move along the detection frame 202.

In order to provide guidance for the movement of the detection assembly 201 along the detection frame 202 and prevent the movement direction of the detection assembly 201 from deviating, a guide slide rail is arranged on the detection frame 202, a guide slide block is arranged on the detection assembly 201, the guide slide block is in sliding fit with the guide slide rail, and the output end of the detection driving part is connected with the detection assembly 201 so as to drive the detection assembly 201 to move along the guide slide rail. Through setting up mutual sliding fit's direction slide rail and direction slider, can provide the direction for the removal of detecting element 201 along detecting frame 202 to guarantee the stability of detecting element 201 removal process.

The belt transmission mechanism 100, the moving tensioning assembly 8, the transmission tensioning assembly 7, the air suction assembly 9, the detection mechanism 200 and the paper receiving mechanism 300 can be designed in a modularized mode, any one of the mechanisms or assemblies can be applied to other devices as a module, the mechanisms or assemblies can be flexibly combined according to actual needs, and the application range is wide.

In the description herein, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used for convenience of description and simplicity of operation, but do not indicate or imply that the structures referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. An induced draft type conveying mechanism, comprising:

the device comprises a support (1) and a rotary driving component (2), wherein the rotary driving component (2) is arranged on the support (1);

the belt-type rotary driving device comprises a driving shaft (3), a first transmission shaft (4) and a belt (5), wherein a plurality of belt through holes (51) are formed in the belt (5), the driving shaft (3) and the first transmission shaft (4) are arranged on a support (1) at intervals and are arranged on the support in a rotating mode, the driving shaft (3) is connected with the output end of a rotary driving assembly (2), and the belt (5) is wound on the driving shaft (3) and the first transmission shaft (4);

air suction assembly (9), air suction assembly (9) are located belt (5) driving shaft (3) with first transmission shaft (4) enclose establish the space of induced drafting of formation, be provided with a plurality of air suction chambers in the space of induced drafting, every the intracavity of induced drafting all is provided with the fan, the fan passes through belt through-hole (51) with the work piece adsorb in on belt (5).

2. The air suction type conveying mechanism is characterized in that the air suction assembly (9) further comprises a ventilation plate (91), the ventilation plate (91) is located above the air suction cavity and connected with the air suction cavity, a plurality of air suction through holes (911) are formed in the ventilation plate (91), and the air suction through holes (911) can be communicated with the belt through holes (51).

3. Aspiration transport mechanism according to claim 2, characterized in that the cross-sectional shape of the aspiration through hole (911) is elongated.

4. Aspiration transport mechanism according to claim 2, characterized in that the aspiration assembly (9) comprises:

a mounting base plate (93) disposed in parallel below the ventilation plate (91);

the two side plates (92) are oppositely arranged between the ventilating plate (91) and the mounting bottom plate (93), and the ventilating plate (91), the two side plates (92), the mounting bottom plate (93) and the bracket (1) are enclosed to form an air suction chamber;

and the partition plates (94) are uniformly arranged in the air suction chamber and divide the air suction chamber into a plurality of air suction cavities.

5. The air suction type conveying mechanism according to claim 4, wherein the air suction assembly (9) further comprises an adjusting plate (95) provided with a plurality of through holes (951), the adjusting plate (95) is arranged between the ventilating plate (91) and the mounting base plate (93) in parallel so as to separate the air suction cavity into a plurality of one-to-one transition cavities and mounting cavities which are distributed up and down, the fan is arranged in the mounting cavities, and the fan can adsorb the workpiece onto the belt (5) through the corresponding through holes (951) and the transition cavities.

6. The aspiration transport mechanism of claim 5, wherein each transition cavity corresponds to a plurality of vias (951).

7. The air suction type conveying mechanism according to claim 5, wherein each fan is externally covered by a shell (97) with an upper opening and a lower opening, the shell (97) is arranged on the mounting base plate (93), and the upper opening of the shell (97) extends into the through hole (951).

8. The aspiration transport mechanism of claim 1, wherein the aspiration assembly (9) further comprises a plurality of support posts (96), and the plurality of support posts (96) are uniformly erected in the aspiration cavity.

9. The aspiration type transmission mechanism according to claim 1, wherein the bracket (1) is further provided with a junction box, and the fan is electrically connected with an external power supply through the junction box.

10. A printed matter inspection apparatus comprising the suction transport mechanism of any one of claims 1-9.

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