CN210553616U

CN210553616U - Drying mode of single-color or multi-color automatic printing machine and conveying device thereof

Info

Publication number: CN210553616U
Application number: CN201920583955.2U
Authority: CN
Inventors: 邱德强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-05-19
Anticipated expiration: 2029-04-26

Abstract

The utility model relates to a monochromatic or polychrome automatic printing machine's stoving mode and conveyor thereof, realize the circulation of platen between stamp device and drying device through turnover conveyor between stamp device and the drying device, drying device includes oven, tongs mechanism, shift fork mechanism, first push mechanism, picture peg and second push mechanism. The utility model has the advantages that: the utility model discloses monochromatic or polychrome automatic printing machine's stoving mode and transport mode conveniently go up and down to operate, and overall structure is simple and easy, the installation is maintained conveniently.

Description

Drying mode of single-color or multi-color automatic printing machine and conveying device thereof

Technical Field

The utility model relates to a calico printing machine, in particular to drying mode and conveyor of monochromatic or polychrome automatic calico printing machine.

Background

At present, at home and abroad: the printing machine is divided into a circular screen printing machine and a flat screen printing machine according to a printing plate. The printing plate of the circular screen printer is cylindrical, the circular screen printer directly adopts a guide belt, the printing speed is high and can reach 5000m per hour, but the circular screen printer only can print fixed patterns, is suitable for grey cloth produced in batch and has a narrow application range. The printing plate of the flat screen printing machine is a planar screen printing plate, and the cloth feeding of the flat screen printing machine is provided with a guide belt and a bedplate. The flat screen printing machine is called a circular or oval printing machine, is suitable for various printing materials, such as mucilage, water paste, printing ink and the like, and has a wide application range.

The working table plates of the traditional circular and oval printing machines run on the same plane according to circular or oval tracks, the occupied area is large, the number of the table plates is small, and the yield is greatly limited in the printing process. In addition, according to the printing process requirement, the printing surface needs to be dried after each chromatography printing is finished, so that next chromatography printing can be carried out, the existing drying mechanism adopts one-to-one open type heating due to the structural limitation of the printing machine, so that most of the energy of the whole heating is dissipated in the working environment, a large amount of energy is wasted, in order to improve the drying speed, the energy can be further reduced by only increasing the power of the drying mechanism.

A novel printing machine with small occupied area and a large number of table plates is provided with a three-dimensional feeding frame and a three-dimensional discharging frame, wherein two groups of vertical feeding or discharging mechanisms and a horizontal direction adjusting mechanism for connecting the two groups of vertical feeding or discharging mechanisms are arranged on the three-dimensional feeding frame and the three-dimensional discharging frame. Taking the vertical feeding mechanism as an example, feeding chains rotating in the vertical direction are installed on two sides of the vertical feeding mechanism in the vertical direction, a plurality of feeding supporting pieces are installed on the non-sprocket sides of the feeding chains, and the printing bedplate supports the feeding supporting pieces on two sides. The feeding chain is driven by the transmission mechanism to drive the printing table plate to move in the vertical direction. When the automatic printing machine works, the printing table plate moves vertically from bottom to top under the action of the vertical feeding mechanism and then is transferred to the other vertical feeding mechanism by the horizontal direction adjusting mechanism to move from top to bottom. Although the novel printing machine with the structure increases the number of the table plates in unit area and improves the yield, the novel printing machine still has certain problems: two sets of perpendicular feed mechanism on three-dimensional advance, ejection of compact frame adopt the chain structure, and the chain can't accomplish two sets of perpendicular feed mechanism paces unanimously completely when the drive stamp platen, and after the accumulation error, the level is transferred to the perpendicular feed mechanism stamp platen height at mechanism both ends and is not at same horizontal plane, causes the level to transfer to the unable smooth handing-over stamp platen of mechanism, consequently has great problem in the aspect of above-mentioned structural reliability, stability.

Therefore, in view of the above phenomena, in patent CN102582225A, a platen moving pair of a full-automatic printing machine is proposed, which includes a frame, and a feeding side lifting and conveying mechanism, a discharging side lifting and conveying mechanism, and a horizontal conveying mechanism mounted on the frame, and its innovation points are: the feeding side lifting conveying mechanism and the discharging side lifting conveying mechanism respectively comprise a lifting bearing support and a lifting transfer support, platen supporting members are distributed on the lifting bearing support and the lifting transfer support, clamping driving mechanisms are arranged on the lifting bearing support and the lifting transfer support, and transfer driving mechanisms are arranged on the lifting transfer support. The structural form of the lifting conveying mechanism is convenient for improving the number of the printing table plates in a unit space on the basis of not increasing the occupied area of the printing machine, and the printing efficiency is ensured to be improved. And the clamping and loosening actions of the lifting bearing support and the lifting connection support are utilized, and the lifting connection support is matched to realize the sequential movement of the printing table plates, so that the printing table plates are ensured to be smoothly connected, and the running reliability and stability of the equipment are improved.

In the above mechanism, the movement of the platen is realized by adopting the matching of the feeding side lifting and conveying mechanism, the discharging side lifting and conveying mechanism and the horizontal conveying mechanism, and for the arrangement of the feeding side lifting and conveying mechanism and the discharging side lifting and conveying mechanism, a plurality of components such as a platen supporting member, a lifting bearing support, a clamping driving mechanism, a lifting handover support, a handover driving mechanism and the like are required, wherein the related components are more, the whole structure is bulkier, the installation and maintenance are inconvenient, and the like, and the lifting operation is more complicated.

Therefore, it is very necessary to develop a drying mode and a conveying device for a monochrome or multicolor automatic printing machine, which has a simple and easy whole structure, is convenient to install and maintain, and is convenient for lifting operation.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a single color or polychrome automatic printing machine's that overall structure is simple and easy, the installation is maintained conveniently and is conveniently carried out the operation of going up and down drying mode and conveyor thereof.

In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a drying mode and conveyor of monochromatic or polychrome automatic printing machine, includes stamp device, drying device and turnover conveyor, realize the circulation of platen between stamp device and drying device through turnover conveyor between stamp device and the drying device, its innovation point lies in: the drying device comprises

The oven is provided with at least two ascending channels and descending channels which are arranged adjacently and can contain the bedplate, and the bottoms of the ascending channels and the descending channels are communicated;

the gripper mechanism is arranged at the top of the oven and used for moving the bedplate conveyed on the turnover conveying device into the descending channel or moving the bedplate in the ascending channel onto the turnover conveying device;

the shifting fork mechanism is provided with a supporting plate or a bracket for supporting the bedplate, and the supporting plate or the bracket is driven by the first horizontal driving mechanism to reciprocate at a first height position at the bottom of the ascending channel and the descending channel;

the first pushing mechanism is respectively positioned in the ascending channel and the descending channel and is used for driving the bedplate in the ascending channel or the descending channel to move to a second height position along the vertical direction;

the inserting plates are respectively arranged at the side parts of the ascending channel and the descending channel, and are driven by a second horizontal driving mechanism or a rotary driving mechanism to horizontally reciprocate at a third height position of the ascending channel or the descending channel so as to move in or out of the bottom end of the bedplate;

the second pushing mechanism is respectively positioned in the ascending channel and the descending channel and is used for driving the bedplate in the ascending channel or the descending channel to move to a fourth height position along the vertical direction;

the first height position, the second height position, the third height position and the fourth height position are sequentially arranged in the ascending channel or the descending channel from bottom to top, and the lower limit positions of the first pushing mechanism and the second pushing mechanism are both located below the first height position.

Further, the oven is provided with more than two ascending channels and descending channels which are adjacently arranged and can contain the bedplate, and the ascending channels and the descending channels are arranged at intervals.

Further, the first horizontal driving mechanism is an air cylinder driving structure, a hydraulic oil cylinder driving structure or a screw rod pair transmission driving structure.

Further, the first pushing mechanism is an air cylinder driving structure, a hydraulic oil cylinder driving structure or a screw rod pair transmission driving structure.

Further, the second pushing mechanism is an air cylinder driving structure, a hydraulic oil cylinder driving structure or a screw rod pair transmission driving structure.

Furthermore, the gripper mechanism comprises a connecting support, the connecting support extends along the descending channel to the ascending channel, a feeding side clamp and a discharging side clamp are mounted on the connecting support, and the feeding side clamp and the discharging side clamp are driven by a horizontal synchronous moving mechanism to realize synchronous movement in the horizontal direction.

Furthermore, the feeding side fixture is the same as the discharging side fixture in structure and comprises a fixture support, a pair of clamping jaw mounting supports are arranged on two sides of the bottom end of the fixture support, the clamping jaw mounting supports are driven by lifting cylinders mounted on the fixture support to lift up and down, a swing shaft is mounted on the clamping jaw mounting supports and formed by hinging between a bearing and the clamping jaw mounting supports, clamping jaws are mounted on two sides of the swing shaft, and the swing shaft is connected and driven by a swing cylinder mounted at the bottom end of the fixture support through a connecting rod to rotate so as to drive the clamping jaws to swing to clamp the bedplate.

Furthermore, the horizontal synchronous moving mechanism comprises a horizontal synchronous rotating shaft arranged on the connecting support, a pair of feed side driving synchronous belt wheels and discharge side driving synchronous belt wheels which are distributed in parallel are arranged on the horizontal synchronous rotating shaft, a feed side driven synchronous belt wheel and a discharge side driven synchronous belt wheel are respectively arranged on two sides of the connecting support, the feed side driving synchronous belt wheel and the feed side driven synchronous belt wheel realize synchronous rotation through a feed side synchronous belt, the discharge side driving synchronous belt wheel and the discharge side driven synchronous belt wheel realize synchronous rotation through a discharge side synchronous belt, the feed side clamp is fixed with the feed side synchronous belt, the discharge side clamp is fixed with the discharge side synchronous belt, a guide rail extending along the long axis direction of the connecting support is also arranged on the connecting support, and guide rollers matched with the guide rail are arranged on the feed side clamp and the discharge side clamp, the horizontal synchronous rotating shaft is driven by a horizontal synchronous motor to rotate and drive the feeding side clamp and the discharging side clamp to synchronously move in the same direction along the extending direction of the cross-connecting support.

Furthermore, the gripper mechanism is a lifting driving mechanism which is arranged in the descending channel and the ascending channel and drives the bedplate to reciprocate up and down at the upper part of the descending channel or the ascending channel, a pair of translation rollers are arranged at the two sides of the descending channel and the ascending channel, and the translation rollers are driven by a horizontal driving mechanism to move in or out of the lower part of the bedplate.

The utility model has the advantages that:

(1) the utility model discloses a drying mode and conveyor thereof of monochromatic or polychrome automatic printing machine, wherein, drying device includes the oven that has ascending passageway and decline passageway, tongs mechanism, second push mechanism, the picture peg, first push mechanism and fork mechanism, can accomplish smoothly through the cooperation of these parts and move the platen that the printing was accomplished to drying device with the decline that the platen of having transported on the turnover conveyor moved to the oven in, and at the same time the next platen moves to the stamp position, and begin the next round of printing, continue immigration stoving after accomplishing the printing, and last platen moves down in the decline passageway, and move gradually the stoving bottom of the case, the platen of bottom is under the effect of fork mechanism, push the platen to ascending passageway, then make progressively move up to the printing plane of stamp device, and move the platen in the ascending passageway to the station of next stamp device and print under the effect of tongs mechanism, the continuous operation of single-color or multi-color printing and drying is realized repeatedly, and the lifting operation is convenient; in addition, the utility model discloses the drying mode of monochromatic or polychrome automatic printing machine and its conveyor whole structure is simple and easy, the installation maintenance is convenient;

(2) the utility model discloses monochromatic or polychrome automatic printing machine's stoving mode and conveyor thereof, wherein, the design of the horizontal synchronization moving mechanism in the tongs mechanism, make feed side anchor clamps, discharge side anchor clamps can realize the equidirectional synchronous movement, thereby can realize the synchronous going on that the platen moves in and moves out, has also reduced the platen and has moved out or move in the latency of going on step by step, improve work efficiency, also reduced the required power supply simultaneously, practice thrift the cost, reduce the energy consumption;

(3) the utility model discloses monochromatic or polychrome automatic printing machine's stoving mode and conveyor thereof, wherein, to tongs mechanism, adopt lift drive mechanism, translation gyro wheel and horizontal drive mechanism three's cooperation, make tongs mechanism whole homoenergetic set up in the box, the printing device can directly set up in turnover conveyor's top like this, the platen that prints promptly is directly sent into drying device and is dried, and the platen that drying device sent out directly carries out one set of stamp next again, reduce the printing device, the holistic area occupied of turnover conveyor and drying device three, when especially needing to adopt many sets of printing device and drying device, the holistic area occupied of effectual reduction printing machine.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of the drying mode and the conveying device of the single-color or multi-color automatic printing machine of the present invention.

Fig. 2 is a schematic diagram showing a specific structure of the feed-side jig in fig. 1.

Fig. 3-7 are diagrams of the movement process of the bottom platen in the descending channel.

Fig. 8-12 are diagrams of the movement of the bottom platen in the descent passage.

Detailed Description

The following examples are presented to enable those skilled in the art to more fully understand the present invention and are not intended to limit the scope of the present invention.

Examples

The drying mode and the conveying device of the automatic single-color or multi-color printing machine of the embodiment are shown in fig. 1 and comprise a printing device, a drying device 1 and a turnover conveying device 2, and the platen is circulated between the printing device and the drying device 1 through the turnover conveying device 2.

The specific structure of the drying device 1 comprises

An oven 11, the oven has two ascending channels 111 and two descending channels 112 which are adjacently arranged and can accommodate the bedplate, and the bottoms of the ascending channels 111 and the descending channels 112 are communicated.

A gripper mechanism 12, the gripper mechanism 12 is arranged at the top of the oven 11 and is used for moving the table plates conveyed on the turnover conveying device into the descending channel 112 or moving the table plates in the ascending channel 111 onto the turnover conveying device; in this embodiment, the gripper mechanism 12 includes a connecting bracket 121, the connecting bracket 121 extends along the descending channel 112 to the ascending channel 111, a feeding-side clamp 122 and a discharging-side clamp 123 are mounted on the connecting bracket 121, and the feeding-side clamp 122 and the discharging-side clamp 123 are driven by a horizontal synchronous moving mechanism 124 to realize synchronous movement in the horizontal direction; wherein, the horizontal synchronous moving mechanism 124 includes a horizontal synchronous rotating shaft 1241 installed on the connecting support 121, a pair of driving synchronous pulleys on the feeding side and a driving synchronous pulley on the discharging side are installed on the horizontal synchronous rotating shaft 1241, a pair of driving synchronous pulleys on the feeding side and a pair of driving synchronous pulleys on the discharging side are installed on the horizontal synchronous rotating shaft 1243, a driven synchronous pulley on the feeding side and a driven synchronous pulley on the discharging side are installed on both sides of the connecting support 121, the driving synchronous pulleys on the feeding side and the driven synchronous pulleys on the feeding side 1244 are synchronously rotated by a synchronous belt 1246 on the feeding side, the driving synchronous pulleys on the discharging side 1243 and the driven synchronous pulleys on the discharging side 1245 are synchronously rotated by a synchronous belt 1247 on the discharging side, the clamp 122 on the feeding side is fixed with the synchronous belt 1246 on the feeding side, the clamp 123 on the discharging side is fixed with the synchronous belt 1247 on the, All install on ejection of compact side anchor clamps 123 with guide rail matched with guide roller, horizontal synchronization axis of rotation 1241 is rotated and is driven feeding side anchor clamps 122, ejection of compact side anchor clamps 123 and carry out synchronous equidirectional motion along handing-over support 121's extending direction by the drive of horizontal synchronization motor.

In a more specific embodiment of the present embodiment, the feed-side jig 122 and the discharge-side jig 123 are identical in structure, in this embodiment, the feed-side jig 122 is taken as an example, and as shown in fig. 3, the feed-side jig includes a jig support 1221, a pair of jaw mounting supports 1222 are provided on both sides of a bottom end of the jig support 1221, the jaw mounting supports 1222 are driven by a lifting cylinder 1223 mounted on the jig support 1221 to move up and down, a swing shaft 1224 is mounted on the jaw mounting supports 1222, the swing shaft 1224 is hinged to the jaw mounting supports 1222 through a bearing 1225, a jaw 1226 is mounted on both sides of the swing shaft 1224, and the swing shaft 1224 is connected to a swing cylinder 1227 mounted on the bottom end of the jig support 1221 through a connecting rod 1228 and is driven to rotate, so as to drive the jaw 1226 to swing to clamp the.

When the bedplate is clamped, firstly, the lifting cylinder 1223 drives the clamping jaw mounting bracket 1222 to move downwards, so as to drive the clamping jaw 1226 to move downwards, after the lifting cylinder 1223 descends to the limit, the lower end of the clamping jaw 1226 is lower than the lower end of the highest bedplate and is positioned at the upper end of the second highest bedplate, then the swinging cylinder 1227 works again, pulls one side hinged with the connecting rod 1228 to move upwards, meanwhile, the other end of the connecting rod 1228 is fixedly connected with the swinging shaft 1224, so that the lower end of the highest bedplate cannot move downwards, and the swinging shaft 1224 is rotated, so that the hook of the clamping jaw 1226 is inserted into the lower end of the bedplate, the lifting cylinder 1223 drives the clamping jaw mounting bracket 1222 to move upwards, at the same time, the bedplate also moves upwards under the clamping action of the clamping jaw 1226, so that the bedplate is clamped, and when the bedplate needs to be put down, the lifting cylinder 1223 drives the clamping jaw mounting bracket 1222 to move downwards first, then, the swing cylinder 1227 moves downwards to enable the clamping jaws to be opened towards the two outer sides of the bedplate to be separated from the bedplate, and then the lifting cylinder 1223 moves upwards again to finish the lowering of the bedplate.

The second structure of the gripper mechanism 12 is: a lifting driving mechanism for driving the bedplate to reciprocate up and down at the upper part of the descending channel 112 or the ascending channel 111 is arranged in each of the descending channel 112 and the ascending channel 111, a pair of translation rollers are arranged at the two sides of each of the descending channel 112 and the ascending channel 111, and the translation rollers are driven by a horizontal driving mechanism to move in or out of the lower part of the bedplate; for the horizontal driving mechanism, an air cylinder or a hydraulic cylinder or a lead screw nut pair can be adopted, and other similar driving mechanisms can also be adopted. To tongs mechanism, adopt lift actuating mechanism, translation gyro wheel and horizontal drive mechanism three's cooperation, make tongs mechanism whole homoenergetic set up in the box, the stamp device can directly set up in turnover conveyor 2's top like this, the good platen of stamp directly sends into drying device 1 and dries promptly, and the platen that drying device 1 sent out directly carries out next set of stamp again, reduce the stamp device, the holistic area occupied of turnover conveyor 2 and drying device 1 three, especially when needing to adopt many sets of stamp device and drying device, the holistic area occupied of effectual reduction calico printing machine.

A fork mechanism 13, the fork mechanism 13 having a pallet or carriage 131 for supporting the platen, the pallet or carriage 131 being driven by a first horizontal driving mechanism 132 to reciprocate at a first height position at the bottom of the ascending path 111 and the descending path 112; the first horizontal driving mechanism 132 may be an air cylinder driving mechanism, a hydraulic oil cylinder driving mechanism, or a screw pair transmission driving mechanism, and may also be a structure form known in the art.

A first pushing mechanism 14 respectively positioned in the ascending channel 111 and the descending channel 112, wherein the first pushing mechanism 14 is used for driving the bedplate in the ascending channel 111 or the descending channel 112 to move to the second height position along the vertical direction.

An insert plate 15 is provided at the side of the ascending path 111 and the descending path 112, respectively, and the insert plate 15 is driven by a second horizontal driving mechanism or a rotary driving mechanism to horizontally reciprocate at a third height position of the ascending path 111 or the descending path 112 so as to move in or out of the bottom end of the table.

A second pushing mechanism 16 respectively located in the ascending path 111 and the descending path 112, the second pushing mechanism 16 being used for driving the platen in the ascending path 111 or the descending path 112 to move to the fourth height position along the vertical direction.

The first height position, the second height position, the third height position and the fourth height position are sequentially arranged in the ascending channel 111 or the descending channel 112 from bottom to top, and the lower limit positions of the first pushing mechanism 14 and the second pushing mechanism 16 are all positioned below the first height position.

In this embodiment, the first pushing mechanism 14, the second pushing mechanism 16, the second horizontal driving mechanism or the rotating driving mechanism 151 has the same structure as the first horizontal driving mechanism 132, and the description thereof is omitted.

In the embodiment, the oven 11 is not limited to two ascending channels 12 and two descending channels 13 that are adjacently arranged and can accommodate the platens, and more than two ascending channels 12 and two descending channels 13 that are adjacently arranged and can accommodate the platens may be arranged in the oven 11 according to actual needs, and the ascending channels 12 and the descending channels 13 are arranged at intervals.

The working principle is as follows: moving the printed bedplate from the bedplate conveyed by the turnover conveying device to a descending channel 112 in the oven 11 for drying through a gripper mechanism 12 arranged at the top of the oven, simultaneously moving the next bedplate to a printing position, starting the next round of printing, continuously moving the printed bedplate into the descending channel 112 in the oven after the printing is finished, as shown in fig. 3, driving the bedplate at the bottom in the descending channel 112 to move to a fourth height position along the vertical direction by a second pushing mechanism 16 in the descending channel 112, as shown in fig. 4, and simultaneously driving a third height position in the descending channel 112 to move to an external third height position by a second horizontal driving mechanism or a rotary driving mechanism 151; as shown in fig. 5, the platen at the fourth height position in the descending passage 111 is driven by the first pushing mechanism 14 in the descending passage 112 to move from the fourth height position to the second height position in the vertical direction, and at the same time, the second pushing mechanism 16 descends to the original position, and the inserting plate 15 is driven by the second horizontal driving mechanism or the rotary driving mechanism 151 to move to the third height position in the descending passage 112 at the external third height position; as shown in fig. 6 and 7, the first pushing mechanism 14 is finally lowered to the home position, so that the pallet at the second height position is lowered onto the pallet or carriage 131 in the fork mechanism 13 at the first height position in the lowering passage 112.

Then, as shown in fig. 8, the pallet or tray 131 is driven by the first horizontal driving mechanism 132 from the first height position at the bottom of the descent passage 112 to the first height position at the bottom of the ascent passage 111; as shown in fig. 9, the platen at the bottom in the ascending channel 111 is then driven by the first pushing mechanism 14 in the ascending channel 111 to move from the first height position to the second height position in the vertical direction; as shown in fig. 10 and 11, the platen at the second height position is driven by the second pushing mechanism 16 in the ascending channel 111 to move to the fourth height position along the vertical direction, the first pushing mechanism 14 descends to the original position while the second pushing mechanism 16 is driven upwards, and the inserting plate 15 is driven by the second horizontal driving mechanism or the rotary driving mechanism 151 to move to the third height position outside at the third height position in the ascending channel 111; as shown in fig. 12, after the platens reach the fourth height position, the insert plate 15 is driven by the second horizontal driving mechanism or the rotary driving mechanism 151 to move to the third height position in the ascending channel 111 from the external third height position, and at the same time, the second pushing mechanism 16 is lowered to the original position, so that the bottom platen in the ascending channel 111 falls to the third height position in the ascending channel 111, the top platen in the ascending channel 111 is gradually moved upwards to the printing plane of the printing device, the platens in the ascending channel are moved to the turnover conveying device under the action of the gripper mechanism, and then the turnover conveying device is moved to the station of the next printing device for printing, and the continuous operation of printing with single color or multiple colors and drying is realized repeatedly.

The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a drying mode and conveyor of monochromatic or polychrome automatic printing machine, includes stamp device, drying device and turnover conveyor, realize the circulation of platen between stamp device and drying device through turnover conveyor between stamp device and the drying device, its characterized in that:

the drying device comprises

the inserting plates are respectively arranged at the side parts of the ascending channel and the descending channel, and are driven by a second horizontal driving mechanism or a rotary driving mechanism to horizontally reciprocate at a third height position of the ascending channel or the descending channel so as to move in or out of the bottom end of the bedplate; the second pushing mechanism is respectively positioned in the ascending channel and the descending channel and is used for driving the bedplate in the ascending channel or the descending channel to move to a fourth height position along the vertical direction;

2. The drying mode of the automatic mono-color or multi-color printing machine and the conveying device thereof according to claim 1, wherein: the oven is provided with more than two ascending channels and descending channels which are adjacently arranged and can contain the bedplate, and the ascending channels and the descending channels are arranged at intervals.

3. The drying mode of the automatic mono-color or multi-color printing machine and the conveying device thereof according to claim 1, wherein: the first horizontal driving mechanism is a cylinder driving structure, a hydraulic oil cylinder driving structure or a screw rod pair transmission driving structure.

4. The drying mode of the automatic mono-color or multi-color printing machine and the conveying device thereof according to claim 1, wherein: the first pushing mechanism is a cylinder driving structure, a hydraulic oil cylinder driving structure or a screw rod pair transmission driving structure.

5. The drying mode of the automatic mono-color or multi-color printing machine and the conveying device thereof according to claim 1, wherein: the first horizontal driving mechanism is a cylinder driving structure, a hydraulic oil cylinder driving structure or a screw rod pair transmission driving structure.

6. The drying mode of the automatic mono-color or multi-color printing machine and the conveying device thereof according to claim 1, wherein: the second pushing mechanism is a cylinder driving structure, a hydraulic oil cylinder driving structure or a screw rod pair transmission driving structure.

7. The drying mode of the automatic mono-color or multi-color printing machine and the conveying device thereof according to claim 1, wherein: the gripper mechanism comprises a connecting support, the connecting support extends along the descending channel to the ascending channel, a feeding side clamp and a discharging side clamp are mounted on the connecting support, and the feeding side clamp and the discharging side clamp are driven by a horizontal synchronous moving mechanism to realize synchronous movement in the horizontal direction.

8. The drying mode of the automatic mono-color or multi-color printing machine and the conveying device thereof according to claim 7, wherein: the feeding side anchor clamps are the same with ejection of compact side anchor clamps structure, all include an anchor clamps support, have a pair of clamping jaw installing support in the both sides of anchor clamps support bottom, the clamping jaw installing support is carried out the oscilaltion by the lift cylinder drive of installing on the anchor clamps support, installs an oscillating axle on the clamping jaw installing support, and this oscillating axle forms through articulating between bearing and the clamping jaw installing support, all installs a clamping jaw in the both sides of oscillating axle, the oscillating axle is connected and is driven through the connecting rod by the swing cylinder of installing in anchor clamps support bottom and rotates to drive the clamping jaw and swing in order to clip the platen.

9. The drying mode of the automatic mono-color or multi-color printing machine and the conveying device thereof according to claim 7, wherein: the horizontal synchronous moving mechanism comprises a horizontal synchronous rotating shaft arranged on a connecting support, a pair of feed side driving synchronous belt wheels and discharge side driving synchronous belt wheels which are distributed in parallel are arranged on the horizontal synchronous rotating shaft, a feed side driven synchronous belt wheel and a discharge side driven synchronous belt wheel are respectively arranged on two sides of the connecting support, the feed side driving synchronous belt wheel and the feed side driven synchronous belt wheel realize synchronous rotation through a feed side synchronous belt, the discharge side driving synchronous belt wheel and the discharge side driven synchronous belt wheel realize synchronous rotation through a discharge side synchronous belt, a feed side clamp is fixed with the feed side synchronous belt, a discharge side clamp is fixed with the discharge side synchronous belt, a guide rail extending along the long axis direction of the connecting support is also arranged on the connecting support, and guide rollers matched with the guide rail are arranged on the feed side clamp and the discharge side clamp, the horizontal synchronous rotating shaft is driven by a horizontal synchronous motor to rotate and drive the feeding side clamp and the discharging side clamp to synchronously move in the same direction along the extending direction of the cross-connecting support.

10. The drying mode of the automatic mono-color or multi-color printing machine and the conveying device thereof according to claim 1, wherein: the gripper mechanism is a lifting driving mechanism which is arranged in the descending channel and the ascending channel and drives the bedplate to reciprocate up and down at the upper part of the descending channel or the ascending channel, a pair of translation rollers are arranged at the two sides of the descending channel and the ascending channel, and the translation rollers are driven by a horizontal driving mechanism to move in or out of the lower part of the bedplate.