阅读说明：本技术 数码印刷机及其基材校正装置 (Digital printing machine and base material correcting device thereof ) 是由 姜飞肖 余茂基 蒙文雯 江洪 于 2021-08-16 设计创作，主要内容包括：本发明实施例提供一种数码印刷机及其基材校正装置,所述装置包括承载架以及均组装于所述承载架上的滑移模块和丝杆螺母机构,滑移模块包括组装于承载架上且与数码印刷机中用于支撑限位料卷的供料轴平行设置的滑轨以及滑动设置于滑轨上且与供料轴相对固定的滑块；述丝杆螺母机构中的丝杆与所述滑轨平行设置,丝杆螺母机构中的螺母与所述供料轴相对固定,丝杆螺母机构还包括组装于所述丝杆的一端用于驱动丝杆旋转的驱动件。本实施例通过控制驱动件驱动丝杆旋转,螺母沿丝杆的轴向移动,使得装载于供料轴上的料卷沿供料轴的轴向移动,最终使打印基材重新恢复平直,在数码印刷机进行打印作业时也能有效的校正打印基材,提高了打印效率和打印质量。(The embodiment of the invention provides a digital printing machine and a substrate correcting device thereof, wherein the device comprises a bearing frame, a sliding module and a screw rod nut mechanism which are assembled on the bearing frame, wherein the sliding module comprises a sliding rail which is assembled on the bearing frame and is arranged in parallel with a feeding shaft for supporting a limiting material roll in the digital printing machine, and a sliding block which is arranged on the sliding rail in a sliding way and is relatively fixed with the feeding shaft; the screw rod and the sliding rail in the screw rod nut mechanism are arranged in parallel, the nut in the screw rod nut mechanism is relatively fixed with the feeding shaft, and the screw rod nut mechanism further comprises a driving piece which is assembled at one end of the screw rod and used for driving the screw rod to rotate. This embodiment is rotatory through control driving piece drive lead screw, and the nut is along the axial displacement of lead screw for load in the epaxial material of supply and follow the axial displacement of supply axle, finally make and print the substrate and resume straight again, also can effectual correction print the substrate when digital printer prints the operation, improved printing efficiency and printing quality.)

1. The base material correcting device of the digital printing machine is characterized by comprising a bearing frame, a sliding module and a screw rod nut mechanism, wherein the sliding module and the screw rod nut mechanism are assembled on the bearing frame; the feed screw and the slide rail are arranged in parallel, a nut in the feed screw and nut mechanism is relatively fixed with the feed shaft, and the feed screw and nut mechanism further comprises a driving piece assembled at one end of the feed screw and used for driving the feed screw to rotate.

2. The substrate correcting apparatus for a digital printer according to claim 1, wherein one of the carriers is provided at each of both ends of the feed shaft, one of the carriers is provided with the feed screw and nut mechanism, and the other carrier is provided with the slide module.

3. The substrate correcting apparatus for a digital printer according to claim 2, wherein the carriage provided with the feed screw-nut mechanism is also provided with the slide module.

4. The substrate correcting apparatus for a digital printer according to claim 1, wherein the driving member is an operating handle fixed to an end of the lead screw for a user to rotate the lead screw, or the driving member is a rotary power member drivingly connected to an end of the lead screw and outputting rotary power to rotate the lead screw.

5. The substrate correcting apparatus for a digital printer according to claim 1 or 2, wherein the carriage includes a support base plate and a carrier base plate vertically connected to the support base plate, and the feed screw-nut mechanism and the slide module are respectively assembled to the carrier base plate of the corresponding carriage.

6. A digital printing machine comprising a supply spool for carrying a roll of material, a printing device for printing on a print substrate delivered from said roll of material, and a substrate correction device assembled to one side of said supply spool, wherein said substrate correction device is a substrate correction device as claimed in any one of claims 1 to 5.

7. The digital printer according to claim 6, wherein the two ends of the feeding shaft are respectively pivoted to the corresponding support frames, the support frames respectively provided at the two ends of the feeding shaft are further correspondingly fixed to the slide block, and one of the support frames is further fixed relative to the nut of the feed screw-nut mechanism.

8. The digital printer according to claim 6, wherein two ends of the feeding shaft are respectively pivoted on the sliding blocks corresponding to the sliding modules, and the sliding blocks are further fixed relative to the nuts in the feed screw-nut mechanism.

9. The digital printer according to claim 6, further comprising a power assembly for driving the feed shaft to rotate.

10. The digital printer according to claim 7, wherein two of said supporting frames further have connecting plates extending therefrom, and a guide shaft parallel to said feeding shaft and having two ends pivotally connected to the corresponding connecting plates is disposed between the two connecting plates, and a middle section of said guide shaft is pressed against the printing substrate extending from the roll to straighten the printing substrate and output the printing substrate through a lower portion of said guide shaft.

Technical Field

The embodiment of the invention relates to the technical field of digital printing machines, in particular to a digital printing machine and a base material correcting device thereof.

Background

An existing digital printing machine generally adopts a feeding device to supply printing substrates for a printing device, the existing feeding device comprises two support frames which are arranged oppositely at a preset interval and a feeding shaft assembled on the two support frames, a material roll formed by winding the printing substrates is sleeved on the feeding shaft and supported by the feeding shaft (the air inflation shaft is usually adopted as the feeding shaft, the air inflation shaft is used for inflating and tensioning and supporting and limiting the material roll), when feeding is implemented, the material roll is pulled to rotate around the central axis of the feeding shaft or the feeding shaft is driven to rotate by external force to drive the material roll to rotate synchronously, and then the printing substrates are output continuously. However, due to the influence of the material of the printing substrate, the printing substrate is prone to shift on the feeding shaft along the axial direction of the feeding shaft, and therefore the output printing substrate correspondingly shifts left and right in the width direction, and further the printing device of the digital printer shifts the printing pattern when printing the printing substrate, and the printing quality is reduced.

In order to effectively correct the left-right offset problem of the printing substrate, the conventional correction method generally needs to pause the printing operation of the digital printing machine, then release the limit of the feeding shaft to the material roll (when the air-inflated shaft is used as the feeding shaft, the air inflated by the air-inflated shaft is released to loosen the air-inflated shaft and the material roll), then move the material roll along the axial direction of the feeding shaft to return the printing substrate supplied by the material roll to the correct preset area, then support and limit the material roll by the feeding shaft again (when the air-inflated shaft is used as the feeding shaft, the air-inflated shaft is inflated again), and then print the printing operation again.

Obviously, the above-mentioned mode efficiency of correcting is lower relatively to printing the substrate, moreover, along with printing the frequency increase that the substrate appears and controls the skew, need frequent start-stop digital printing machine, very big degree the influence digital printing machine's printing efficiency.

Disclosure of Invention

The technical problem to be solved by the embodiments of the present invention is to provide a substrate correction device of a digital printing machine, which can correct a printing substrate without stopping the machine.

A further object of embodiments of the present invention is to provide a digital printer capable of calibrating a printing substrate without stopping the digital printer.

In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions: a base material correcting device of a digital printing machine comprises a bearing frame, a sliding module and a screw rod nut mechanism, wherein the sliding module and the screw rod nut mechanism are assembled on the bearing frame; the feed screw and the slide rail are arranged in parallel, a nut in the feed screw and nut mechanism is relatively fixed with the feed shaft, and the feed screw and nut mechanism further comprises a driving piece assembled at one end of the feed screw and used for driving the feed screw to rotate.

Furthermore, the two ends of the feeding shaft are respectively provided with one bearing frame, one bearing frame is provided with the screw and nut mechanism, and the other bearing frame is provided with the sliding module.

Furthermore, the bearing frame provided with the feed screw and nut mechanism is also provided with the sliding module.

Furthermore, the driving part is an operating handle fixed at one end of the screw rod for a user to rotate the screw rod, or the driving part is a rotary power part which is in transmission connection with one end of the screw rod and outputs rotary power to drive the screw rod to rotate.

Furthermore, the bearing frame comprises a support substrate and a bearing substrate vertically connected with the support substrate, and the screw-nut mechanism and the sliding module are respectively assembled on the bearing substrate of the corresponding bearing frame.

On the other hand, in order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions: a digital printing machine comprises a feeding shaft for loading a material roll, a printing device for printing a printing substrate output by the material roll and a substrate correcting device assembled on one side of the feeding shaft, wherein the substrate correcting device is the substrate correcting device.

Furthermore, two ends of the feeding shaft are respectively pivoted on the corresponding support frames, the support frames respectively arranged at two ends of the feeding shaft are correspondingly fixed on the sliding block, and one of the support frames is relatively fixed with the nut in the feed screw nut mechanism.

Furthermore, two ends of the feeding shaft are respectively pivoted on the sliding blocks corresponding to the sliding modules, and the sliding blocks are relatively fixed with nuts in the feed screw nut mechanism.

Further, the digital printer further comprises a power assembly for driving the feeding shaft to rotate.

Furthermore, two the support frames still stretch out respectively and have the connecting plate, still be provided with between two the connecting plate with the feed shaft is parallel and both ends respectively the pivot axis on the connecting plate that corresponds, the axis middle section supports presses on the printing substrate that stretches out from the material book and makes printing substrate straighten and export via the axis below of leading.

After the technical scheme is adopted, the embodiment of the invention at least has the following beneficial effects: in the embodiment of the invention, the bearing frame is arranged and the sliding module and the screw rod nut mechanism are assembled on the bearing frame, when the printing base material supplied by the material roll on the feeding shaft deviates left and right along the width direction, an operator can control the driving piece at one end of the screw rod in the screw rod nut mechanism to drive the screw rod to rotate so as to enable the nut on the screw rod to move along the axial direction of the screw rod, because the slide rail of the sliding module is arranged in parallel with the feeding shaft, and the screw rod is arranged in parallel with the slide rail, when the nut moves along the axial direction of the screw rod, the slide block correspondingly moves along the axial direction of the slide rail, so that the feeding shaft and the material roll loaded on the feeding shaft move along the axial direction of the feeding shaft, the position of the printing base material supplied by the material roll in the width direction is adjusted, the printing base material is finally restored to be straight again, and the printing base material can be effectively corrected when the digital printing machine performs printing operation, the printing efficiency and the printing quality are improved.

Drawings

FIG. 1 is a schematic diagram of a substrate calibration device of a digital printer according to an alternative embodiment of the present invention, with a feeding shaft detached.

Fig. 2 is a schematic view of an alternative embodiment of the digital printer according to the present invention in an assembled state.

FIG. 3 is a schematic cross-sectional view of the axial plane of the length of the feed screw and the feed shaft of an alternative embodiment of the substrate calibration device of the digital printer according to the present invention.

Detailed Description

The present application will now be described in further detail with reference to the accompanying drawings and specific examples. It should be understood that the following illustrative embodiments and description are only intended to explain the present invention, and are not intended to limit the present invention, and features of the embodiments and examples in the present application may be combined with each other without conflict.

As shown in fig. 1-3, an alternative embodiment of the present invention provides a substrate calibration device 1 of a digital printing machine, which includes a carrier 10, and a sliding module 12 and a lead screw nut mechanism 14 both assembled on the carrier 10, where the sliding module 12 includes a sliding rail 121 assembled on the carrier 10 and arranged parallel to a supply shaft 3 of the digital printing machine for supporting a spacing material roll a, and a sliding block 123 slidably arranged on the sliding rail 121 and fixed relative to the supply shaft 3; the feed screw 141 of the feed screw and nut mechanism 14 is arranged in parallel with the slide rail 121, the nut 143 of the feed screw and nut mechanism 14 is fixed relative to the feed shaft 3, and the feed screw and nut mechanism 14 further includes a driving member 145 assembled at one end of the feed screw 141 for driving the feed screw 141 to rotate.

In the embodiment of the invention, by arranging the carrier 10 and assembling the sliding module 12 and the screw-nut mechanism 14 on the carrier 10, when the printing substrate B supplied by the roll a on the supply shaft 3 deviates left and right along the width direction, an operator can control the driving element 145 at one end of the screw 141 in the screw-nut mechanism 14 to drive the screw 141 to rotate, so that the nut 143 on the screw 141 moves along the axial direction of the screw 141, because the slide rail 121 of the sliding module 12 is arranged parallel to the supply shaft 3, and the screw 141 is arranged parallel to the slide rail 121, when the nut 143 moves along the axial direction of the screw 141, the slider 123 correspondingly moves along the axial direction of the slide rail 121, so that the supply shaft 3 and the roll a loaded on the supply shaft 3 move along the axial direction of the supply shaft 3, thereby adjusting the position of the printing substrate B supplied by the roll a in the width direction, and finally enabling the printing substrate B to restore to be straight again, the printing base material B can be effectively corrected while the digital printer performs printing operation, and the printing efficiency and the printing quality are improved. In specific implementation, the nut 143 and the feeding shaft 3 are relatively fixed, and may be directly connected and fixed, or may be connected and fixed through a transfer member.

In yet another alternative embodiment of the invention, as shown in fig. 1, one of the carriers 10 is provided with the lead screw and nut mechanism 14, and the other carrier 10 is provided with the sliding module 12, respectively, at both ends of the feed shaft 3. In this embodiment, the two loading frames 10 are respectively supported and loaded from two ends of the feeding shaft 3, so that the overall structure is simpler and the assembly is more convenient. It will be appreciated that in other embodiments, the two loading ledges 10 may also be connected in one piece, corresponding to only one longer loading ledge, also to the effect that the supply shaft 3 is effectively supported.

In yet another alternative embodiment of the present invention, the carrier 10 provided with the lead screw-nut mechanism 14 is also provided with the slip module 12. In the present embodiment, the sliding module 12 is also disposed on the carriage 10 provided with the lead screw and nut mechanism 14, and two sliding modules 12 are disposed at two ends of the feeding shaft to support the feeding shaft 3, so that the feeding shaft 3 has better stability and is more stable when moving along the axial direction.

In yet another alternative embodiment of the present invention, as shown in fig. 1, the driving element 145 is an operation handle fixed at one end of the screw rod 141 for a user to rotate the screw rod 141, or the driving element 145 is a rotary power element which is in transmission connection with one end of the screw rod 141 and outputs rotary power to drive the screw rod 141 to rotate. In this embodiment, the driving member 145 correspondingly adopts an operation handle or a rotary power member, so that the printing substrate B can be manually or automatically corrected, and different implementation modes can be flexibly selected according to corresponding design requirements and cost in specific implementation. In addition, there are many embodiments of the operating handle, such as: handles, levers, rockers, handwheels, or the like, with the handwheel being employed in the embodiments of fig. 1-3; in addition, the rotary power member may be a rotary motor, and may be replaced by another structural member capable of outputting rotary power, for example: a rotary cylinder, etc.

In yet another alternative embodiment of the present invention, as shown in fig. 1, the carrier 10 includes a supporting substrate 101 and a carrying substrate 103 vertically connected to the supporting substrate 10, and the lead screw-nut mechanism 14 and the sliding module 12 are respectively assembled on the carrying substrate 103 of the corresponding carrier 10. In this embodiment, the supporting frame 10 employs the supporting substrate 101 and the supporting substrate 103, and has a simple structure, and can effectively implement the installation of the feed screw-nut mechanism 14 and the sliding module 12 and the stable support of the feeding shaft 3.

On the other hand, as shown in fig. 2, another digital printer according to an embodiment of the present invention includes a feeding shaft 3 for loading a material roll a, a printing device 5 for printing a printing substrate B output from the material roll a, and a substrate calibration device 1 assembled on one side of the feeding shaft 3, where the substrate calibration device 1 is the substrate calibration device according to the embodiment. The digital printer of the embodiment adopts the base material correcting device, and can effectively correct the printing base material B without stopping the printer.

In another alternative embodiment of the present invention, as shown in fig. 1, two ends of the feeding shaft 3 are respectively pivoted on the corresponding support frames 6, the support frames 6 respectively disposed at two ends of the feeding shaft 3 are further correspondingly fixed to the sliding block 123, and one of the support frames 6 is further fixed relative to the nut 143 of the feed screw-nut mechanism 14. In this embodiment, the two ends of the feeding shaft 3 are respectively pivoted to the corresponding support frames 6, and the support frames 6 are correspondingly fixed to the sliding block 123, and are relatively fixed to the nut 143 of the feed screw nut mechanism 14 through one support frame 6, so that the structural layout can be effectively optimized, and the assembly efficiency of the structure can be improved.

In yet another alternative embodiment of the present invention, as shown in fig. 1, two ends of the feeding shaft 3 are respectively pivoted on the sliding blocks 123 corresponding to the sliding module 12, and the sliding blocks 123 are further fixed relative to the nuts 143 in the feed screw and nut mechanism 14. In this embodiment, the two ends of the feeding shaft 3 are pivotally connected to the corresponding sliding blocks 123 of the sliding module 12, and the sliding blocks 123 are relatively fixed to the nuts 143 of the feed screw and nut mechanism 14, so that the overall assembly can be realized.

In yet another alternative embodiment of the present invention, as shown in fig. 1, the digital printer further comprises a power assembly 7 for driving the feed shaft 3 to rotate. In this embodiment, a power assembly 7 is also provided, which drives the feeding shaft 3 to actively rotate the material roll a to actively supply the printing substrate a outwards. In the embodiment shown in fig. 1-3, the power assembly 7 comprises a speed reducer 70 assembled on the support frame 6 and a rotary power member 72 connected to the speed reducer 70 for driving the feed shaft 3 to rotate.

In yet another alternative embodiment of the present invention, as shown in fig. 1 to fig. 3, two connection plates 60 are further extended from each of the two support frames 6, a guide shaft 62 parallel to the feeding shaft 3 and having two ends pivotally connected to the corresponding connection plates 60 is further disposed between the two connection plates 60, and a middle section of the guide shaft 62 is pressed against the printing substrate B extended from the material roll a to straighten the printing substrate B and output the printing substrate B through a lower portion of the guide shaft 62. In this embodiment, the guide shaft 62 is further provided to guide the printing substrate B drawn from the roll a, and the middle section of the guide shaft 62 is pressed against the printing substrate B extending from the roll a to straighten the printing substrate B and output the printing substrate B through the lower side of the guide shaft 62, so as to prevent the printing substrate B from deviating and effectively guide the printing substrate B.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.