Printing apparatus with multi-mode switching structure

Abstract

The present application relates to a printing device of multi-mode switching structure, the printing unit at least contains two unit units, the printing unit is arranged between the front mechanism and the rear mechanism, the front mechanism includes the front traction device and the front floating device; the rear mechanism includes the rear traction device and the rear floating device; the rear traction device is connected with the curing mechanism; each unit unit includes a working module, the working module includes a printing mechanism, a unit curing mechanism and a unit floating mechanism; a unit floating seat of the unit floating mechanism is provided with a unit front floating roller and a unit rear floating roller, each unit unit also includes a unit front traction device and a unit rear traction device. The structure has reserved each matching structure, the printing material is arranged according to different modes, different printing mode switching selection can be provided, and different modes have structures that can be shared, so that the printing device of multi-mode switching structure is relatively compact, and a device can meet different mode printing.

Description

TECHNICAL FIELD

[0001] The present application relates to a printing device, and relates to a printing device with a multi-mode switching structure capable of switching to different modes of printing. BACKGROUND

[0002] Different printing devices have different modes of printing structure, and the printing process is continuous without back-off of the printing substrate or intermittent back-off of the printing substrate. Different types of printing devices are selected according to different printing requirements to perform corresponding printing operations on the printing substrate. At present, a printing device can only perform a single mode of printing operation. A single continuous non-back-off printing device has high printing speed, but a large number of printing plate cylinders need to be equipped according to the length of the printing pattern, and the printing cost is higher and the printing cycle is longer. A single intermittent back-off printing device has low printing speed and low efficiency. If a printing factory configures multiple different types of printing devices to meet more modes of printing production requirements, the use cost increases and the use site requirement is higher, which is obviously unreasonable. SUMMARY

[0003] In view of the technical problems in the background art, the technical problems solved by the present application aim to provide a printing device with a multi-mode switching structure that meets more printing process requirements and has relatively reduced cost.

[0004] To solve the above technical problems, the present application adopts the following technical scheme:

[0005] The printing equipment of multi-mode switching structure comprises a front mechanism, a printing unit and a rear mechanism, characterized in that: the printing unit comprises at least two unit units arranged in front of and behind each other, and the printing unit is arranged between the front mechanism and the rear mechanism; the front mechanism comprises a front traction device and a front floating device; the front floating device comprises a front floating roller, and the front floating roller is in transmission connection with a front floating drive motor; the front traction device is arranged in front of the front floating device; the front traction device comprises a front traction roller; the rear mechanism comprises a rear traction device and a rear floating device; the rear traction device is further connected with a centralized curing mechanism; the rear floating device comprises a rear floating roller, and the rear floating roller is in transmission connection with a rear floating drive motor; the rear traction device is arranged behind the rear floating device; the rear traction device comprises a rear traction roller; each unit unit comprises a working module, and the working module comprises a printing mechanism, a unit curing mechanism and a unit floating mechanism; the printing mechanism comprises a plate roller, a transfer roller and an impression roller; the unit floating mechanism comprises a unit floating seat, and the unit floating seat is provided with a front unit floating roller and a rear unit floating roller; the unit floating seat is in transmission connection with a unit floating drive motor; each unit unit further comprises a front unit traction device and a rear unit traction device, and the working module is arranged between the front unit traction device and the rear unit traction device; the front unit traction device comprises a front unit traction roller; the rear unit traction device comprises a rear unit traction roller; the front traction roller, the rear traction roller, the front unit traction roller and the rear unit traction roller are further provided with traction auxiliary pressure rollers.

[0006] The above technical solutions can be further optimized or supplemented as follows.

[0007] For example, it has mode one, which is a centralized curing non-retracting continuous printing mode. In mode one, the substrate output end of the front traction device is connected with the substrate input end of the front printing mechanism in the printing unit. Between the unit unit and another unit unit at the rear side, the substrate output end of the printing mechanism of the unit unit is connected with the substrate input end of the printing mechanism of another unit unit at the rear side. The substrate output end of the rear printing mechanism in the printing unit is connected with the substrate input end of the rear traction device, and the centralized curing mechanism is in a connected online state. Further optimization, in mode one, the front floating device is in a non-floating running state for material receiving or in a state of avoiding material receiving, and the rear floating device is in a non-floating running state for material receiving or in a state of avoiding material receiving; the unit front traction device of the front unit in the printing group is in a state of avoiding material receiving, or the unit front traction device is in a state of receiving and maintaining a synchronous linear speed with the front traction device to pull the printing material; the unit front traction devices of other unit units are in a state of avoiding material receiving; the rear traction device maintains a synchronous linear speed with the front traction device to pull the printing material; the unit curing mechanism and the unit rear traction device are in a state of avoiding material receiving, the unit floating mechanism of the front unit in the printing group is in a non-floating running state for material receiving or in a state of avoiding material receiving, and the other unit floating mechanisms are in a state of avoiding material receiving.

[0008] For another example, it has mode 2, which is a group curing non-retraction continuous printing mode. In mode 2, the substrate output end of the front traction device is connected with the substrate input end of the front printing mechanism in the printing group; in each unit of the unit, the substrate output end of the printing mechanism is connected with the substrate input end of the unit curing mechanism; between the unit unit and another unit unit at the rear side, the substrate output end of the unit curing mechanism of the unit unit is connected with the substrate input end of the printing mechanism of another unit unit at the rear side; the substrate output end of the unit curing mechanism of the rear unit in the printing group is connected with the substrate input end of the rear traction device. Further optimization, in mode 2, the front floating device is in a non-floating operating state for material receiving or in a state of avoiding material receiving, the rear floating device is in a non-floating operating state for material receiving or in a state of avoiding material receiving, the unit front traction device and / or the unit rear traction device of the unit unit is in a state of avoiding material receiving, or the unit front traction device and / or the unit rear traction device is in a state of receiving material and maintains a synchronous linear speed with the front traction device to pull the printing substrate; the rear traction device maintains a synchronous linear speed with the front traction device to pull the printing substrate; the unit curing mechanism is in a material receiving operating state, and the unit floating mechanism is in a non-floating operating state for material receiving or in a state of avoiding material receiving.

[0009] For example, it has mode three, mode three is a group curing intermittent whole back printing mode, in mode three, the substrate output end of the front traction device is connected with the substrate input end of the front floating device, the substrate output end of the front floating device is connected with the substrate input end of the unit front floating roller of the unit floating mechanism of the unit in the printing group; in each unit, the substrate output end of the unit front floating roller is connected with the substrate input end of the printing mechanism, the substrate output end of the printing mechanism is connected with the substrate input end of the unit curing mechanism, the substrate output end of the unit curing mechanism is connected with the substrate input end of the unit rear floating roller of the unit floating mechanism; between the unit and the other unit behind, the substrate output end of the unit rear floating roller of the unit floating mechanism of the unit is connected with the substrate input end of the unit front floating roller of the unit floating mechanism of the other unit behind; the substrate output end of the unit rear floating roller of the unit floating mechanism of the unit behind in the printing group is connected with the substrate input end of the rear floating device, the substrate output end of the rear floating device is connected with the substrate input end of the rear traction device. Further optimization, in mode three, the front floating device is in the connected floating operation state, the rear floating device is in the connected floating operation state, the unit front traction device and / or the unit rear traction device of the unit is in the avoiding receiving state, or, the unit front traction device and / or the unit rear traction device is in the receiving state and keeps the synchronous linear speed traction of the substrate with the front traction device; the rear traction device keeps the synchronous linear speed traction of the substrate with the front traction device; the unit curing mechanism is in the receiving operation state, and the unit floating mechanism is in the receiving non-floating operation state for phase adjustment.

[0010] For another example, it has mode four, which is a group curing intermittent group retreat printing mode. In mode four, the front traction device of each unit has a substrate input end and a substrate output end, and the rear traction device of each unit has a substrate input end and a substrate output end; in each unit group, the substrate output end of the unit front traction device is connected with the substrate input end of the unit front floating roller, the substrate output end of the unit front floating roller is connected with the substrate input end of the printing mechanism, the substrate output end of the printing mechanism is connected with the substrate input end of the unit curing mechanism, the substrate output end of the unit curing mechanism is connected with the substrate input end of the unit rear floating roller, and the substrate output end of the unit rear floating roller is connected with the substrate input end of the unit rear traction device; between the unit group unit and another unit group unit at the rear, the substrate output end of the unit rear traction device of the unit group unit is connected with the substrate input end of the unit front traction device of another unit group unit at the rear. Further optimization, in mode four, the front floating device is in a non-floating operating state for material splicing or in a state avoiding material splicing, the rear floating device is in a non-floating operating state for material splicing or in a state avoiding material splicing, the unit front traction device and the unit rear traction device of the unit unit are respectively in a material splicing operating state, and the unit front traction device and the unit rear traction device maintain a synchronous linear speed to pull the printing substrate; the front traction device and / or the rear traction device are in a state avoiding material splicing, or the front traction device and / or the rear traction device are in a material splicing state and maintain a synchronous linear speed with the unit front traction device to pull the printing substrate; the unit curing mechanism is in a material splicing operating state, and the unit floating mechanism is in a connecting floating operating state.

[0011] In addition, the front traction roller, the rear traction roller, the front unit traction roller, and the rear unit traction roller are respectively connected to the traction motor; the front floating device also includes a front fixed roller, which corresponds to the front floating roller, and the rear floating device also includes a rear fixed roller, which corresponds to the rear floating roller; the unit floating mechanism also includes a front unit fixed roller and a rear unit fixed roller, which corresponds to the front unit floating roller, and the rear unit fixed roller corresponds to the rear unit floating roller; the centralized curing mechanism includes a first curing component, which is arranged next to the rear traction roller, and the unit curing mechanism includes a second curing component, which is equipped with a feed roller, and the second curing component is arranged next to the feed roller; the feed roller also has a cooling structure.

[0012] The beneficial effects of the present application are that in the printing equipment of the multi-mode switching structure, the structure has reserved various matching structures, the printing substrate can be arranged in different paths according to different needs, different printing mode switching can be provided, and the structure can be shared in different modes, so that the printing equipment of the multi-mode switching structure is relatively compact, one equipment can meet different mode printing, adapt to different printing process requirements, and the use cost is relatively low; multiple printing equipment does not need to be purchased, and the use site requirement is also relatively low; for small single printing products of new specifications, new cylinders do not need to be configured, intermittent back printing is used by using existing specification cylinders, the delivery cycle is short, and the efficiency is high. The printing equipment of the multi-mode switching structure has mode one, mode two, mode three and mode four, and various printing working modes are used for selection and arrangement, wherein mode one is a centralized curing non-back continuous printing mode, mode two is a grouped curing non-back continuous printing mode, mode three is a grouped curing intermittent whole back printing mode, and mode four is a grouped curing intermittent grouped back printing mode. According to different printing requirements, the corresponding mode can be switched and selected for use. When used, the printing substrate can be arranged according to different requirements of the mode, so as to achieve the effect of one machine with multiple functions. BRIEF DESCRIPTION OF DRAWINGS

[0013] The related details and working principles of the embodiments and examples of the present application will be described below in combination with the drawings.

[0014] Figure 1 It is a structural schematic diagram of the present application.

[0015] Figure 2 It is a printing work mode one printing substrate arrangement structure schematic diagram in the present application.

[0016] Figure 3 It is another way of printing work mode one printing substrate arrangement structure schematic diagram in the present application.

[0017] Figure 4 It is a printing work mode two printing substrate arrangement structure schematic diagram in the present application.

[0018] Figure 5 It is a printing work mode three printing substrate arrangement structure schematic diagram in the present application.

[0019] Figure 6 It is a printing work mode four printing substrate arrangement structure schematic diagram in the present application.

[0020] In the drawings:

[0021] 1, front mechanism;

[0022] 10, front traction device; 101, front traction roller;

[0023] 11. Front floating device; 110. Front floating roller;

[0024] 2. Printing unit;

[0025] 20. Unit unit; 21. Working module; 22. Printing mechanism; 23. Unit curing mechanism; 24. Unit floating mechanism;

[0026] 221, plate roller; 222, transfer roller; 223, printing bottom roller;

[0027] 231. Second curing component; 232. Feed roller;

[0028] 241, unit floating seat; 242, unit front floating roller; 243, unit rear floating roller;

[0029] 25. Unit front traction device; 251. Front unit traction roller;

[0030] 26. Unit rear traction device; 261. Rear unit traction roller;

[0031] 3. Lagging institutions;

[0032] 30. Rear traction device; 301. Rear traction roller;

[0033] 31. Rear floating device; 311. Rear floating roller;

[0034] 4. Centralized curing mechanism; 40. First curing component;

[0035] 50. Printing materials. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the implementation of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] Referring to the accompanying drawings, the printing device with a multi-mode switching structure in an embodiment of this embodiment includes a front mechanism 1, a printing unit 2 and a rear mechanism 3, which can provide a plurality of modes for selecting and replacing printing on a roll-type substrate.

[0038] Among them, the printing group 2 includes at least two group units 20, and multiple groups can be set according to needs. The group units 20 are arranged in front of each other, and the printing group 2 is arranged between the front mechanism 1 and the rear mechanism 3, that is, multiple group units 20 are arranged between the front mechanism 1 and the rear mechanism 3.

[0039] The leading mechanism 1 includes a leading traction device 10 and a leading floating device 11 .

[0040] The front traction device 10 can be used to cooperate with traction of the printing substrate.

[0041] The front floating device 11 can be used to float a printing substrate. The front floating device 11 includes a front floating roller 110. The front floating roller 110 can float in conjunction with the printing substrate. The front floating roller 110 is connected to a front floating drive motor, which drives the front floating roller 110 to float, such as the left and right floating operation shown in the figure.

[0042] The front traction device 10 is arranged before the front floating device 11 , that is, when the printing substrate is wound, it can first pass through the front traction device 10 and then pass through the front floating device 11 to be laid out.

[0043] The rearward mechanism 3 includes a rearward traction device 30 and a rearward floating device 31 .

[0044] The rear traction device 30 can be used to cooperate with traction of the printing substrate.

[0045] The rear traction device 30 is also connected to the centralized curing mechanism 4 , which can cooperate with the centralized curing mechanism 4 to perform corresponding curing on the printed substrate according to needs.

[0046] The rear floating device 31 can be used to float the printing substrate. The rear floating device 31 includes a rear floating roller 311, which can float in conjunction with the printing substrate. The rear floating roller 311 is connected to a rear floating drive motor, which drives the rear floating roller 311 to float, such as the left and right floating motion shown in the figure.

[0047] The rear traction device 30 is arranged behind the rear floating device 31 , that is, when the printing substrate is wound, it can first pass through the rear floating device 31 and then pass through the rear traction device 30 to be laid out.

[0048] Among them, each unit 20 includes a working module 21, and the working module 21 includes a printing mechanism 22, a unit curing mechanism 23 and a unit floating mechanism 24; the printing mechanism 22 can be used to print the substrate, and the printing mechanism 22 includes a plate roller 221, a transfer roller 222 and a printing bottom roller 223, wherein the transfer roller 222 and the printing bottom roller 223 are used for input and output of the substrate, which is relatively mature; according to needs, the unit curing mechanism 23 can cooperate to perform corresponding curing on the printed substrate.

[0049] Among them, the unit floating mechanism 24 includes a unit floating seat 241, and the unit floating seat 241 is provided with a unit front floating roller 242 and a unit rear floating roller 243. The unit front floating roller 242 and the unit rear floating roller 243 will float together with the unit floating seat 241; the unit floating seat 241 is connected to the unit floating drive motor, and the unit floating drive motor cooperates to drive the unit floating seat 241 to perform floating operation, such as the floating operation of left and right activities in the figure.

[0050] Each unit 20 further includes a front traction device 25 and a rear traction device 26, with the working module 21 disposed between the front traction device 25 and the rear traction device 26. The front traction device 25 and the rear traction device 26 can be used to wind the printing substrate. When the printing substrate is input or output from each unit 20, the front traction device 25 and the rear traction device 26 can cooperate to pull the printing substrate in and out as needed.

[0051] In the printing equipment with a multi-mode switching structure, various matching structures have been reserved in its structure. The printing material (i.e., the printing material, which is a continuous roll material) can be routed and wound along different paths according to different needs, and can be selected for switching between different printing modes. In addition, different modes have a common structure, which makes the printing equipment with a multi-mode switching structure relatively compact, and one device can meet the printing needs of different modes. The cost of use is relatively low, there is no need to purchase multiple printing devices, and the site requirements for use are also relatively low.

[0052] The following optimization or further explanation may be performed based on the above embodiments.

[0053] The printing device with this multi-mode switching structure has at least Mode 1, Mode 2, Mode 3, and Mode 4. Multiple printing working modes are available for selection and arrangement. Mode 1 is a centralized curing non-retracting continuous printing mode, Mode 2 is a group curing non-retracting continuous printing mode, Mode 3 is a group curing intermittent overall retracting printing mode, and Mode 4 is a group curing intermittent group retracting printing mode. The corresponding mode can be switched and selected according to different printing needs. When in use, the printing material can be arranged accordingly according to the different required modes. In Mode 1 and Mode 2, the transfer roller 222 can be arranged with rubber blankets connected end to end (with almost no gap between the end and the end); in Mode 3 and Mode 4, the transfer roller 222 can be arranged with rubber blankets spaced apart end to end to form an avoidance space for intermittent retraction.

[0054] For example, in mode 1, the rear traction device 30 is further connected to the centralized curing mechanism 4. After the substrates are printed in different units 20, they are centrally cured at the centralized curing mechanism 4. The substrates do not retreat during the entire normal printing process.

[0055] The printing material output end of the front traction device 10 is connected to the printing material input end of the front printing mechanism 22 (of the unit 20) in the printing unit 2, so that the printing material output and input are connected and arranged in a winding manner;

[0056] Between the unit unit 20 and the other unit unit 20 at the rear, the substrate output end of the printing mechanism 22 of the unit unit 20 is connected to the substrate input end of the printing mechanism 22 of the other unit unit 20 at the rear, so that the substrate output and input are connected and arranged in a winding manner; the substrate can be pulled straight through between the two printing mechanisms 22, such as directly feeding the substrate horizontally;

[0057] The substrate output end of the rear printing mechanism 22 (of the unit 20) in the printing unit 2 is connected to the substrate input end of the rear traction device 30, so that the substrate output and input are connected and arranged in a winding manner;

[0058] The rear traction device 30 is also connected to the centralized curing mechanism 4, which coordinates with the curing mechanism 4 to cure the printed substrate. The centralized curing mechanism 4 is in an online state, allowing the printed substrate to pass through it while it is in operation, allowing the centralized curing mechanism 4 to centrally cure the printed substrate. In Mode 1, the centralized curing mechanism 4 is in an online state. In other modes (such as Modes 2, 3, and 4, discussed below), the rear traction device 30 is still connected to the centralized curing mechanism 4, and the centralized curing mechanism 4 is in an engaged avoidance state, an engaged non-curing state, or an online state (even for secondary curing). Of course, the centralized curing mechanism 4 can also be omitted.

[0059] In addition, mode 1 can also be optimized:

[0060] The front floating device 11 is in a non-floating state for splicing (i.e., the printing material passes through the front floating device 11 without the need for corresponding floating operation) or in a state for avoiding splicing (i.e., the printing material does not pass through the front floating device 11). The non-floating state for splicing means that the printing material can be spliced ​​and passed through, but does not require floating operation during the printing process (the same applies below and will not be repeated).

[0061] The rear floating device 31 is in a non-floating state for splicing (i.e., the printing material passes through the rear floating device 31 without corresponding floating operation) or in a avoiding splicing state (i.e., the printing material does not pass through the front floating device 11);

[0062] The unit front traction device 25 of the leading unit 20 in the printing unit 2 is in a state of avoiding splicing (i.e., the substrate is not wound through the unit front traction device 25), or the unit front traction device 25 is in a state of splicing (i.e., the substrate is laid through the unit front traction device 25) and the unit front traction device 25 and the leading traction device 10 maintain a synchronous linear speed to pull the substrate; the unit front traction devices 25 of the other unit units 20 are in a state of avoiding splicing (i.e., the substrate is not wound through them);

[0063] The rear traction device 30 and the front traction device 10 maintain a synchronous linear speed to pull the printing substrate;

[0064] The unit curing mechanism 23 and the unit post-traction device 26 are in a state of avoiding the material splicing (i.e., the substrate does not pass through them), and the substrate does not need to be unit cured or post-tracted.

[0065] The unit floating mechanism 24 (such as its unit front floating roller 242) of the front unit unit 20 in the printing unit 2 is in a non-floating operation state for material splicing (i.e., the printing material is laid out through the unit floating mechanism 24, but no corresponding floating operation is required) or in a material-avoiding state, and the other unit floating mechanisms 24 are in a material-avoiding state (i.e., the printing material does not pass through these unit floating mechanisms 24).

[0066] For example, in mode 2, after the substrates are printed in different unit units 20, they are directly cured by the unit curing mechanism 23 in the corresponding unit unit 20, thus achieving group curing. In addition, the substrates do not return during the entire normal printing process.

[0067] The printing material output end of the front traction device 10 is connected to the printing material input end of the front printing mechanism 22 (of the unit 20) in the printing unit 2, so that the printing material output and input are connected and arranged in a winding manner;

[0068] In each unit 20, the substrate output end of the printing mechanism 22 is connected to the substrate input end of the unit curing mechanism 23, so that the substrate output and input are connected and arranged in a winding manner;

[0069] Between the unit unit 20 and another unit unit 20 at the rear side, the substrate output end of the unit curing mechanism 23 of the unit unit 20 is connected to the substrate input end of the printing mechanism 22 of the other unit unit 20 at the rear side, so as to realize the substrate output and input connection and winding layout;

[0070] The substrate output end of the unit curing mechanism 23 of the rear unit unit 20 in the printing unit 2 is connected to the substrate input end of the rear traction device 30, so that the substrate output and input are connected and arranged in a winding manner.

[0071] In addition, mode 2 can also be optimized:

[0072] The front floating device 11 is in a non-floating state for splicing (i.e., the printing material passes through the front floating device 11 without corresponding floating operation) or in a state for avoiding splicing (i.e., the printing material does not pass through the front floating device 11).

[0073] The rear floating device 31 is in a non-floating state for splicing (i.e., the printing material passes through the rear floating device 31 without corresponding floating operation) or in a avoiding splicing state (i.e., the printing material does not pass through the front floating device 11);

[0074] The unit front traction device 25 and / or the unit rear traction device 26 of the unit unit 20 are in a state of avoiding the material splicing (i.e., the substrate is not wound through them), or the unit front traction device 25 and / or the unit rear traction device 26 are in a state of splicing (i.e., the substrate is not wound through them) and the unit front traction device 25 and / or the unit rear traction device 26 pull the substrate at a synchronous linear speed with the front traction device 10;

[0075] The rear traction device 30 and the front traction device 10 maintain a synchronous linear speed to pull the printing substrate;

[0076] The unit curing mechanism 23 is in a material receiving operation state so as to connect the printing substrates in the corresponding unit unit 20 and perform group curing processing on them;

[0077] The unit floating mechanism 24 is in a non-floating state for splicing (i.e., the printing material passes through the unit floating mechanism 24 without corresponding floating operation) or in a state for avoiding splicing (i.e., the printing material does not pass through the unit floating mechanism 24).

[0078] For example, in mode three, after the substrate is printed in different unit units 20, it is directly cured by the unit curing mechanism 23 in the corresponding unit unit 20 to achieve group curing. In addition, the substrate is intermittently retreated as a whole during the normal printing process to eliminate blank spaces on the substrate. The intermittent retreat is controlled by the front floating device 11 and the rear floating device 31 through floating coordination, wherein:

[0079] The printing material output end of the front traction device 10 is connected to the printing material input end of the front floating device 11, so that the printing material output and input are connected and arranged in a winding manner;

[0080] The substrate output end of the front floating device 11 is connected to the substrate input end of the unit front floating roller 242 of the unit floating mechanism 24 of the front unit unit 20 in the printing unit 2, so as to realize the substrate output and input connection winding layout;

[0081] In each unit 20, the substrate output end of the unit front floating roller 242 is connected to the substrate input end of the printing mechanism 22, the substrate output end of the printing mechanism 22 is connected to the substrate input end of the unit curing mechanism 23, and the substrate output end of the unit curing mechanism 23 is connected to the substrate input end of the unit rear floating roller 243 of the unit floating mechanism 24, so that the substrate output and input are connected and arranged in a winding manner;

[0082] Between the unit unit 20 and another unit unit 20 at the rear side, the substrate output end of the unit rear floating roller 243 of the unit floating mechanism 24 of the unit unit 20 is connected to the substrate input end of the unit front floating roller 242 of the unit floating mechanism 24 of the other unit unit 20 at the rear side, so that each unit unit 20 realizes a substrate output and input connection winding layout;

[0083] The substrate output end of the unit rear floating roller 243 of the unit floating mechanism 24 of the rear unit unit 20 in the printing unit 2 is connected to the substrate input end of the rear floating device 31, so that the substrate output and input are connected and arranged in a winding manner;

[0084] The printing material output end of the rear floating device 31 is connected to the printing material input end of the rear traction device 30, so that the printing material output and input are connected and arranged in a winding manner.

[0085] In addition, mode three can also be optimized:

[0086] The front floating device 11 is in a connected floating operation state, and the rear floating device 31 is in a connected floating operation state, so that the entire printing substrate can be intermittently retreated (and returned to its original position after retreat) through floating operation.

[0087] The unit front traction device 25 and / or the unit rear traction device 26 of the unit unit 20 are in a state of avoiding the material splicing (i.e., the printing substrate is not wound through them), or the unit front traction device 25 and / or the unit rear traction device 26 are in a state of splicing (i.e., the printing substrate is not wound through them) and pull the printing substrate at a synchronous linear speed with the front traction device 10;

[0088] The rear traction device 30 and the front traction device 10 maintain a synchronous linear speed to pull the printing substrate;

[0089] The unit curing mechanism 23 is in a material receiving operation state so as to connect the printing substrates in the corresponding unit unit 20 and perform group curing processing on them;

[0090] The unit floating mechanism 24 is in a non-floating operating state for receiving materials and is used for phase adjustment so that in this mode the printing material is connected in the corresponding unit unit 20 for phase adjustment, and no floating operation is required during the printing process.

[0091] For example, in mode 4, after the substrates are printed in different unit units 20, they are directly cured by the unit curing mechanism 23 in the corresponding unit unit 20 to achieve group curing. In addition, the substrates are intermittently grouped and retracted during the entire normal printing process, which can eliminate blank gaps on the substrates. The intermittent group retraction will be controlled by the front floating roller 242 and the rear floating roller 243 of each unit unit 20 along with the unit floating seat 241 through floating coordination and grouping, wherein:

[0092] Each unit front traction device 25 has a substrate input end and a substrate output end. The substrate will be input from the substrate input end and output from the substrate output end, and the corresponding unit front traction device 25 cooperates to pull the substrate. Each unit rear traction device 26 has a substrate input end and a substrate output end. The substrate will be input from the substrate input end and output from the substrate output end, and the corresponding unit front traction device 25 cooperates to pull the substrate.

[0093] In each unit 20, the substrate output end of the unit front traction device 25 is connected to the substrate input end of the unit front floating roller 242, the substrate output end of the unit front floating roller 242 is connected to the substrate input end of the printing mechanism 22, the substrate output end of the printing mechanism 22 is connected to the substrate input end of the unit curing mechanism 23, the substrate output end of the unit curing mechanism 23 is connected to the substrate input end of the unit rear floating roller 243, and the substrate output end of the unit rear floating roller 243 is connected to the substrate input end of the unit rear traction device 26, so that each unit 20 realizes a substrate output and input connection winding layout;

[0094] Between the unit unit 20 and another unit unit 20 at the rear side, the printing material output end of the unit rear traction device 26 of the unit unit 20 is connected with the printing material input end of the unit front traction device 25 of another unit unit 20 at the rear side, so as to realize the printing material output and input connection and winding layout between the unit units 20.

[0095] In addition, mode 4 can also be optimized:

[0096] The front floating device 11 is in a non-floating state for splicing (i.e., the printing material passes through the front floating device 11 without corresponding floating operation) or in a state for avoiding splicing (i.e., the printing material does not pass through the front floating device 11).

[0097] The rear floating device 31 is in a non-floating state for splicing (i.e., the printing material passes through the rear floating device 31 without corresponding floating operation) or in a avoiding splicing state (i.e., the printing material does not pass through the front floating device 11);

[0098] The unit front traction device 25 and the unit rear traction device 26 of the unit 20 are respectively in a receiving operation state to link the printing substrate in the corresponding unit 20 for matching traction conveying, and to avoid the tension fluctuation affecting the printing quality during the intermittent grouping retreat operation matching process of the units 20 (grouped and controlled by the unit front traction device 25 and the unit rear traction device 26 through floating matching), and to ensure the printing stability.

[0099] The unit front traction device 25 and the unit rear traction device 26 keep the synchronous linear speed traction of the printing substrate;

[0100] The front traction device 10 and / or the rear traction device 30 is in a state of avoiding receiving, or the front traction device 10 and / or the rear traction device 30 is in a receiving state and keeps the synchronous linear speed traction of the printing substrate with the unit front traction device 25;

[0101] The unit curing mechanism 23 is in a receiving operation state to link the printing substrate in the corresponding unit 20 for grouping curing treatment;

[0102] The unit floating mechanism 24 is in a linking floating operation state to link the printing substrate in the corresponding unit 20 for floating, matching the retreat of the printing substrate in the corresponding unit 20, and floating back to the original position after the retreat is completed.

[0103] In addition to the above four modes, in the printing device with a multi-mode switching structure, the front traction device 10 includes a front traction roller 101; the rear traction device 30 includes a rear traction roller 301; the unit front traction device 25 includes a front unit traction roller; the unit rear traction device 26 includes a rear unit traction roller; the front traction roller 101, the rear traction roller 301, the front unit traction roller, and the rear unit traction roller are also respectively connected to traction motors, and the corresponding traction motors (such as servo motors) drive the corresponding traction rollers to run for active traction of the printing substrate; the front traction roller 101, the rear traction roller 301, the front unit traction roller, and the rear unit traction roller are also respectively equipped with traction auxiliary pressure rollers for cooperating with the corresponding traction rollers to stably traction the printing substrate; the front floating device 11 also includes a front fixed roller, which corresponds to the front floating roller 110 to cooperate with the floating effect of the printing substrate; the rear floating device 31 also includes a rear fixed roller, which corresponds to the rear floating roller 311 to cooperate with the floating effect of the printing substrate; the unit floating The mechanism 24 also includes a front fixed roller and a rear fixed roller of the unit. The front fixed roller of the unit cooperates with the front floating roller 242 of the unit, and the rear fixed roller of the unit cooperates with the rear floating roller 243 of the unit to cooperate with the floating effect of the substrate; the substrate is stored or pulled back and forth or the tension of the substrate is controlled by the floating effect of the substrate; the centralized curing mechanism 4 is connected to the rear traction device 30, and the centralized curing mechanism 4 includes a first curing component 40. The first curing component 40 can be configured next to the rear traction roller 301. The structure Relatively more compact; the unit curing mechanism 23 includes a second curing component 231, which is equipped with a feed roller 232, and is positioned adjacent to the feed roller 232. The feed roller 232 may also include a cooling structure (such as a water-cooling channel or an air-cooling channel) to prevent excessive temperatures during curing. During the substrate retraction process (e.g., in Mode 3 or Mode 4), the feed roller 232 and the bottom printing roller 223 can be driven by corresponding motors to reverse and retract simultaneously. After retraction is complete, forward rotation resumes to continue printing. To avoid the splicing state, the unit front traction device 25 and the unit rear traction device 26 can be provided with corresponding transition rollers for the substrate to bypass.

Claims

1. A printing device with a multi-mode switching structure, comprising a front mechanism (1), a printing unit (2) and a rear mechanism (3), characterized in that: The printing unit (2) includes at least two unit units (20), the unit units (20) are arranged in front of each other, and the printing unit (2) is arranged between the front mechanism (1) and the rear mechanism (3). The leading mechanism (1) comprises a leading traction device (10) and a leading floating device (11); the leading floating device (11) comprises a leading floating roller (110), and the leading floating roller (110) is connected to the leading floating drive motor in a transmission manner; the leading traction device (10) is arranged in front of the leading floating device (11); the leading traction device (10) comprises a leading traction roller (101); The rearward mechanism (3) includes a rearward traction device (30) and a rearward floating device (31); the rearward traction device (30) is further connected to the centralized solidification mechanism (4); the rearward floating device (31) includes a rearward floating roller (311), and the rearward floating roller (311) is transmission-connected to the rearward floating drive motor; the rearward traction device (30) is arranged behind the rearward floating device (31); the rearward traction device (30) includes a rearward traction roller (301); Each unit (20) includes a working module (21), the working module (21) includes a printing mechanism (22), a unit curing mechanism (23) and a unit floating mechanism (24); the printing mechanism (22) includes a plate roller (221), a transfer roller (222) and a printing bottom roller (223); The unit floating mechanism (24) includes a unit floating seat (241), a unit front floating roller (242) and a unit rear floating roller (243) are provided on the unit floating seat (241), and the unit floating seat (241) is in driving connection with the unit floating drive motor; Each unit (20) further comprises a unit front traction device (25) and a unit rear traction device (26), and the working module (21) is arranged between the unit front traction device (25) and the unit rear traction device (26); The unit front traction device (25) includes a front unit traction roller (251); the unit rear traction device (26) includes a rear unit traction roller (261); The front traction roller (101), the rear traction roller (301), the front unit traction roller (251), and the rear unit traction roller (261) are also respectively equipped with traction auxiliary pressure rollers; The printing device has modes 1, 2, 3 and 4. Mode 1 is a centralized curing non-retracting continuous printing mode, mode 2 is a group curing non-retracting continuous printing mode, mode 3 is a group curing intermittent overall retracting printing mode, and mode 4 is a group curing intermittent group retracting printing mode. In mode 1: the centralized curing mechanism (4) is in an online connection state; the unit front traction device (25) of the preceding unit unit (20) in the printing unit (2) is in a state of avoiding material splicing, or the unit front traction device (25) is in a state of splicing and maintains a synchronous linear speed with the preceding traction device (10) to pull the printing material; the unit front traction devices (25) of the other unit units (20) are in a state of avoiding material splicing; the unit curing mechanism (23) and the unit rear traction device (26) are in a state of avoiding material splicing; the unit floating mechanism (24) of the preceding unit unit (20) in the printing unit (2) is in a state of non-floating operation for splicing or in a state of avoiding material splicing, and the other unit floating mechanisms (24) are in a state of avoiding material splicing; In mode 2: the unit floating mechanism (24) is in a material receiving non-floating operation state or in a material receiving avoidance state; In mode three: the front floating device (11) and the rear floating device (31) are both in a connected floating operation state; the unit floating mechanism (24) is in a material-connected non-floating operation state for phase adjustment; In mode 4: the front floating device (11) and the rear floating device (31) are both in a non-floating operating state for receiving materials or in a state of avoiding receiving materials, the front traction device (25) and the rear traction device (26) of the unit unit (20) are respectively in a material receiving operating state, and the front traction device (25) and the rear traction device (26) maintain a synchronous linear speed to pull the printing substrate; the unit floating mechanism (24) is in a connected floating operating state; In mode 1 and mode 2, the front floating device (11) and the rear floating device (31) are both in a non-floating operating state for receiving materials or in a state of avoiding receiving materials; Among them, in mode 2, mode 3 and mode 4, the unit curing mechanism (23) is in a material receiving operation state.

2. The printing device with a multi-mode switching structure according to claim 1, wherein: In mode one, The printing material output end of the front traction device (10) is connected to the printing material input end of the front printing mechanism (22) in the printing unit (2). Between the unit unit (20) and another unit unit (20) at the rear side, the printing material output end of the printing mechanism (22) of the unit unit (20) is connected to the printing material input end of the printing mechanism (22) of another unit unit (20) at the rear side. The printing material output end of the rear printing mechanism (22) in the printing unit (2) is connected to the printing material input end of the rear traction device (30).

3. The printing device with a multi-mode switching structure according to claim 2, wherein: In mode one, The rear traction device (30) and the front traction device (10) maintain a synchronous linear speed to pull the printing material.

4. The printing device with a multi-mode switching structure according to claim 1, wherein: In mode 2, The printing material output end of the front traction device (10) is connected to the printing material input end of the front printing mechanism (22) in the printing unit (2); In each unit (20), the printing material output end of the printing mechanism (22) is connected to the printing material input end of the unit curing mechanism (23); Between the unit unit (20) and another unit unit (20) at the rear side, the printing material output end of the unit curing mechanism (23) of the unit unit (20) is connected to the printing material input end of the printing mechanism (22) of the other unit unit (20) at the rear side; The printing material output end of the unit curing mechanism (23) of the rear unit unit (20) in the printing unit (2) is connected to the printing material input end of the rear traction device (30).

5. The printing device with a multi-mode switching structure according to claim 4, characterized in that: In mode 2, The unit front traction device (25) and / or the unit rear traction device (26) of the unit unit (20) are in a state of avoiding the material connection, or the unit front traction device (25) and / or the unit rear traction device (26) are in a state of connecting the material and pull the printing substrate at a synchronous linear speed with the front traction device (10); The rear traction device (30) and the front traction device (10) maintain a synchronous linear speed to pull the printing material.

6. The printing device with a multi-mode switching structure according to claim 1, wherein: In model three, The printing material output end of the front traction device (10) is connected to the printing material input end of the front floating device (11). The printing material output end of the front floating device (11) is connected to the printing material input end of the unit front floating roller (242) of the unit floating mechanism (24) of the front unit unit (20) in the printing unit (2); In each unit (20), the substrate output end of the unit front floating roller (242) is connected to the substrate input end of the printing mechanism (22), the substrate output end of the printing mechanism (22) is connected to the substrate input end of the unit curing mechanism (23), and the substrate output end of the unit curing mechanism (23) is connected to the substrate input end of the unit rear floating roller (243) of the unit floating mechanism (24); Between the unit unit (20) and another unit unit (20) at the rear side, a printing material output end of a unit rear floating roller (243) of a unit floating mechanism (24) of the unit unit (20) is connected to a printing material input end of a unit front floating roller (242) of a unit floating mechanism (24) of another unit unit (20) at the rear side; The printing material output end of the unit rear floating roller (243) of the unit floating mechanism (24) of the rear unit unit (20) in the printing unit (2) is connected to the printing material input end of the rear floating device (31). The printing material output end of the rear floating device (31) is connected to the printing material input end of the rear traction device (30).

7. The printing device with a multi-mode switching structure according to claim 6, wherein: In model three, The unit front traction device (25) and / or the unit rear traction device (26) of the unit unit (20) are in a state of avoiding the material connection, or the unit front traction device (25) and / or the unit rear traction device (26) are in a state of connecting the material and pull the printing substrate at a synchronous linear speed with the front traction device (10); The rear traction device (30) and the front traction device (10) maintain a synchronous linear speed to pull the printing material.

8. The printing device with a multi-mode switching structure according to claim 1, wherein: In mode four, Each unit front traction device (25) has a printing material input end and a printing material output end. Each unit rear traction device (26) has a printing material input end and a printing material output end; In each unit (20), the substrate output end of the unit front traction device (25) is connected to the substrate input end of the unit front floating roller (242), the substrate output end of the unit front floating roller (242) is connected to the substrate input end of the printing mechanism (22), the substrate output end of the printing mechanism (22) is connected to the substrate input end of the unit curing mechanism (23), the substrate output end of the unit curing mechanism (23) is connected to the substrate input end of the unit rear floating roller (243), and the substrate output end of the unit rear floating roller (243) is connected to the substrate input end of the unit rear traction device (26); between the unit unit (20) and another unit unit (20) at the rear side, the substrate output end of the unit rear traction device (26) of the unit unit (20) is connected to the substrate input end of the unit front traction device (25) of another unit unit (20) at the rear side.

9. The printing device with a multi-mode switching structure according to claim 8, wherein: In mode four, The front traction device (10) and / or the rear traction device (30) are in a state of avoiding the material connection, or the front traction device (10) and / or the rear traction device (30) are in a state of connecting the material and pull the printing material at a synchronous linear speed with the unit front traction device (25).

10. The printing device with a multi-mode switching structure according to any one of claims 1 to 9, characterized in that: The front traction roller (101), the rear traction roller (301), the front unit traction roller (251), and the rear unit traction roller (261) are also respectively connected to a traction motor; The front floating device (11) further comprises a front fixed roller, which is matched with the front floating roller (110). The rear floating device (31) further includes a rear fixed roller, and the rear fixed roller corresponds to and cooperates with the rear floating roller (311); The unit floating mechanism (24) further includes a unit front fixed roller and a unit rear fixed roller, The front fixed roller of the unit and the front floating roller of the unit (242) are matched with each other. The unit rear fixed roller and the unit rear floating roller (243) are matched with each other; The centralized curing mechanism (4) includes a first curing component (40), which is arranged beside the rear traction roller (301). The unit curing mechanism (23) includes a second curing component (231), the second curing component (231) is equipped with a feeding roller (232), and the second curing component (231) is arranged beside the feeding roller (232); the feeding roller (232) also has a cooling structure.

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