Web inverting device and printing apparatus

Abstract

The utility model discloses a kind of material roll turnover device and printing equipment, this kind of material roll turnover device includes rack, and sequentially arranged feed guide, turnover assembly and discharge guide on rack along material roll transport direction. Feed guide includes feed roller and first guide roller spaced apart along height direction, material roll sequentially via feed roller and first guide roller into turnover assembly, ensure that the material roll from high input can accurately enter turnover assembly according to expected and overturn;Discharge guide includes second guide roller and discharge roller spaced apart along height direction, second guide roller ensure that the material roll of completed turnover can be smoothly conveyed to discharge roller place and output material roll turnover device from discharge roller place. This kind of material roll turnover device is in the height direction of rack, feed roller is located above discharge roller, predetermined height difference is formed between the upper surface of feed roller and the lower surface of discharge roller, especially applicable to the working condition that two printing modules exist height difference in printing equipment.

Description

Technical Field

[0001] This utility model relates to the field of roll material processing technology, and in particular to a roll material turning device that can be used in printing equipment. Background Technology

[0002] In various processing equipment for roll materials, there is often a need to process both sides of the roll material separately. For example, printing equipment needs to perform double-sided printing on roll materials. Usually, multiple printing carriages are set up in the printing equipment. After printing one side of the roll material is printed by other printing carriages, the roll material is flipped over by a flipping device, and then the other printing carriages are used to print the other side of the roll material.

[0003] In such printing equipment, the nozzle positions of each printing carriage are usually fixed. Therefore, the printing accuracy of the printing carriage on both sides of the roll material largely depends on the flipping accuracy of the flipping device when flipping the roll material. However, the flipping device in the existing technology often simply winds the roll material around the flipping roller group for flipping. The accuracy requirements for the relative positions of multiple flipping rollers in the flipping roller group are low. During the high-speed flipping action between the flipping rollers, the roll material is prone to shifting in multiple directions, which makes it impossible for the flipped roll material to be accurately delivered to the corresponding position of the print head of the printing carriage, affecting the final printing effect. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that in the existing technology, the flipping device simply winds the roll of material around the flipping roller group for flipping, and the roll of material is very easy to deviate during the flipping process, which greatly affects the flipping accuracy of the roll of material.

[0005] To solve the above-mentioned technical problems, the present invention discloses a roll turning device, which includes a frame and a feeding guide, a turning component and a discharging guide arranged sequentially on the frame along the roll transport direction.

[0006] The feeding guide includes a feeding roller and a first guide roller arranged at intervals along the height direction. The rolled material enters the turning assembly sequentially through the feeding roller and the first guide roller.

[0007] The discharge guide includes a second guide roller and a discharge roller arranged at intervals along the height direction. The rolled material is sequentially fed out of the rolled material turning device via the second guide roller and the discharge roller.

[0008] Furthermore, in the height direction of the frame, the feed roller is located above the discharge roller, and a predetermined height difference is formed between the upper surface of the feed roller and the lower surface of the discharge roller.

[0009] Using the above technical solution, after the roll material enters the roll material flipping device, it sequentially passes through the feeding guide, the flipping assembly, and the output guide, and is output from the output guide. The first guide roller connects the feeding roller and the flipping assembly, ensuring the roll material enters the flipping assembly smoothly, improving the support stability of the roll material, and reducing the risk of deviation during the flipping process within the flipping assembly. Similarly, the second guide roller connects the flipping assembly and the output roller, enabling the roll material to be smoothly output from the output roller. For example, in printing equipment, the first guide rollers, spaced apart from the feeding roller along the height direction, ensure the roll material accurately enters the flipping assembly and flips as expected. The second guide rollers, also spaced apart from the output roller along the height direction, ensure the flipped roll material is smoothly conveyed to the output roller and output, preventing deviation in other directions. This greatly improves the flipping accuracy of the roll material flipping device, ensuring the flipped roll material is accurately transported towards the downstream printing module.

[0010] Furthermore, in the height direction of the frame, the feed roller is located above the output roller, and a predetermined height difference is formed between the upper surface of the feed roller and the lower surface of the output roller. This not only adapts to the working conditions where there is a height difference between the upstream and downstream components, but also improves the smoothness of the roll material movement in the transport direction by utilizing this height difference, making it easier for the roll material to enter the downstream printing module.

[0011] In summary, the roll turning device provided by this utility model can turn the roll with high precision, which is beneficial for downstream components to perform precise operations on the roll, and is especially suitable for working conditions where there is a height difference between upstream and downstream components.

[0012] The present invention also discloses a roll turning device. The turning assembly includes a first turning roller, a second turning roller and a transition roller disposed on a frame. The first turning roller and the second turning roller are spaced apart from each other in the height direction and both extend inclined relative to the transport direction. Furthermore, when viewed along the height direction of the frame, the first turning roller and the second turning roller extend intersectingly with each other.

[0013] The transition roller is located on the same side of the first and second turning rollers and extends along the transport direction.

[0014] The coil material from the feed guide passes through the first turning roller, the transition roller, and the second turning roller in sequence before entering the discharge guide.

[0015] Using the above technical solution, taking the front side of the coil as the top, the coil is flipped after passing through the first flipping roller. At this point, the back side of the coil is on top and the transport direction has changed. Then, the transport direction of the coil is adjusted by the transition roller and a second flip is performed. After the transport direction is adjusted, the front side of the coil is on top and it undergoes a third flip by the second flipping roller. At this point, the back side of the coil is on top and it is output according to the expected transport direction. Therefore, this flipping assembly can not only accurately flip the coil but also ensure that the coil is output according to the expected transport direction, improving the applicability of the coil flipping device.

[0016] The present invention also discloses a roll turning device, wherein the feed roller, the first guide roller, the second guide roller, and the discharge roller all extend perpendicular to the transport direction.

[0017] Furthermore, viewed along the height of the frame, both the first and second turning rollers extend at a 45° angle relative to the transport direction.

[0018] With the above technical solution, since both the first and second turning rollers extend at a 45° angle relative to the transport direction, the roll material output after being turned by the first turning roller can be accurately transported toward the transition roller, and the roll material output from the transition roller can be accurately transported toward the second turning roller. The transport of the roll material between the first turning roller and the transition roller, and between the transition roller and the second turning roller can be well connected, and finally it can be accurately output along the transport direction.

[0019] The present invention also discloses a roll turning device, wherein in the height direction of the frame, the upper surface of the first turning roller is flush with the lower surface of the transition roller, and the upper surface of the transition roller is flush with the lower surface of the second turning roller.

[0020] Furthermore, in the height direction of the frame, the first guide roller is located below the feed roller, and the lower surface of the first guide roller is flush with the lower surface of the first tilting roller.

[0021] The second guide roller is located above the discharge roller, and the upper surface of the second guide roller is flush with the upper surface of the second tilting roller.

[0022] By adopting the above technical solution, the roll material guided by the first guide roller can pass through the first turning roller accurately and smoothly. The roll material entering the turning assembly can be transported smoothly and accurately on the first turning roller, the transition roller and the second turning roller in sequence. At the same time, the roll material output from the turning assembly can be accurately and smoothly transported to the discharge roller by the first guide roller, thereby improving the smoothness of the roll material transportation in the roll material turning device, especially meeting the working condition where there is a height difference between the feeding position and the discharge position of the roll material turning device.

[0023] The present invention also discloses a roll turning device, wherein both ends of the first turning roller and the second turning roller are connected to the frame through adjustment components. The first turning roller and the second turning roller can adjust the position of their respective ends in the height direction and / or their respective tilt angles relative to the transport direction through corresponding adjustment components.

[0024] By adopting the above technical solution, the position and tilt angle of the tilting roller in the height direction can be adjusted by adjusting the components, so that the first tilting roller and the second tilting roller can better meet the installation requirements. For example, the lower surface of the first tilting roller can be made flush with the lower surface of the first guide roller, or the upper surface of the second tilting roller can be made flush with the upper surface of the second guide roller.

[0025] The present invention also discloses a roll turning device, wherein each adjusting component includes an adjusting base plate extending along the height direction and a connecting seat protruding from one side of the adjusting base plate.

[0026] The base plate is provided with a first adjustment hole extending along the height direction, and the base plate fastening assembly is adjustablely connected to the first adjustment hole and to the frame along the height direction.

[0027] The connecting seat is provided with a second adjustment hole that extends at an angle relative to the transport direction. The corresponding ends of the first or second tilting roller are movably connected to the second adjustment hole via shaft end fasteners.

[0028] By adopting the above technical solution, the position of the base plate fastening assembly in the first adjustment hole is adjusted, thereby changing the position of the base plate in the height direction, which in turn adjusts the position of the flipping roller in the height direction. At the same time, by adjusting the position of the corresponding end of the first or second flipping roller in the second adjustment hole, the tilt angle of the corresponding flipping roller relative to the transport direction is adjusted, ensuring that the flipping roller can output the roll material in the predetermined transport direction while flipping the roll material.

[0029] The present invention also discloses a roll turning device, wherein the transition roller is provided with fixed seats at both ends.

[0030] Furthermore, the frame is provided with a third adjustment hole extending along the height direction at the corresponding position of each fixed seat, and the fixed seat can be adjustedly connected to the third adjustment hole along the height direction by the fixed seat fastening assembly.

[0031] Using the above technical solution, the position of the transition roller in the height direction can be adjusted through the third adjustment hole via the fixed base to ensure that the lower surface of the transition roller is flush with the upper surface of the first flip roller, and the upper surface of the transition roller is flush with the lower surface of the second flip roller.

[0032] The present invention also discloses a roll turning device, wherein the first turning roller and the second turning roller are both configured as hollow cylindrical structures with multiple air holes formed on their outer peripheral surfaces.

[0033] Furthermore, one end of both the first and second tumbling rollers is connected to an external air pump, so that the first and second tumbling rollers can blow air outward from multiple air holes on their outer periphery.

[0034] By adopting the above technical solution, the air pump continuously and stably supplies air into the turning roller, and multiple air holes on the turning roller blow air outward to form a stable air pressure that slightly suspends the roll material. This transforms the friction between solids into friction between solids and gas. Furthermore, the distribution of air holes reduces the dynamic contact area between the roll material and the turning roller, thereby reducing the friction between the surfaces of the roll material and the turning roller, making the roll material transfer smoother and the wear rate lower.

[0035] The present invention also discloses a roll turning device, wherein the outer peripheral surfaces of the first turning roller and the second turning roller are formed with a plurality of protrusions or recesses.

[0036] By adopting the above technical solution, the contact area between the turning roller and the roll material is reduced by multiple protrusions or recesses on the turning roller, thereby reducing the friction between the surface of the roll material and the turning roller, making the transmission of the roll material more stable.

[0037] The present invention also discloses a printing device, including multiple printing modules and a roll-to-roll device of any one of the above, wherein the roll-to-roll device is disposed between any two printing modules among the multiple printing modules.

[0038] Using the above technical solution, the roll material flipping device, which is set between any two printing modules in a plurality of printing modules, can flip the roll material with high flipping accuracy, ensuring that the flipped roll material is accurately transported to the downstream printing module for printing.

[0039] The beneficial effects of this utility model are as follows:

[0040] This utility model discloses a roll-of-roll turning device, which includes a frame and a feeding guide, a turning assembly, and an output guide arranged sequentially on the frame along the roll transport direction. The feeding guide includes a feeding roller and a first guide roller spaced apart along the height direction, through which the roll enters the turning assembly. The output guide includes a second guide roller and an output roller spaced apart along the height direction, with the second guide roller ensuring that the turned roll is smoothly conveyed to the output roller and exited from the roll-of-roll turning device. This roll-of-roll turning device can turn the roll with high precision, thereby facilitating precise operations on the roll by downstream components. Attached Figure Description

[0041] Figure 1 A three-dimensional structural schematic diagram of the roll turning device provided in the embodiment of this utility model;

[0042] Figure 2 A side view of the roll turning device provided in an embodiment of this utility model;

[0043] Figure 3 A top view of the roll turning device provided in this embodiment of the utility model;

[0044] Figure 4 A schematic diagram of the cooperation structure between the roll flipping device and the roll provided in the embodiment of this utility model;

[0045] Figure 5 A partially enlarged schematic diagram of the adjusting component in the roll turning device provided in this embodiment of the utility model;

[0046] Figure 6 This is a side view of the first turning roller in the roll turning device provided in this embodiment of the utility model.

[0047] Explanation of reference numerals in the attached figures:

[0048] 10. Roll turning device;

[0049] 100. Frame; 110. Side panel;

[0050] 200. Feed guide; 210. Feed roller; 220. First guide roller;

[0051] 300, Tilting assembly; 301, Air hole; 310, First tilting roller; 320, Second tilting roller; 330, Transition roller;

[0052] 400. Discharge guide; 410. Discharge roller; 420. Second guide roller;

[0053] 500. Adjustment component; 510. Adjustment base plate; 520. Connecting seat;

[0054] 600. Fixture;

[0055] 20. Coiled material. Detailed Implementation

[0056] As mentioned in the background section, existing flipping devices simply wrap the roll of material around a set of flipping rollers for flipping. The roll of material is very easy to deviate during the flipping process, which greatly affects the flipping accuracy of the roll of material.

[0057] To address this, the present invention provides a roll material turning device. This device includes a feeding guide at the upstream end of the turning assembly, comprising a feeding roller and a first guide roller spaced apart along the height direction. The roll material enters the turning assembly sequentially via the feeding roller and the first guide roller, ensuring that the roll material input from a high position can accurately enter the turning assembly and be turned as expected. At the downstream end of the turning assembly, an output guide is provided, comprising a second guide roller and an output roller spaced apart along the height direction. The roll material is sequentially fed out of the roll material turning device via the second guide roller and the output roller, ensuring that the turned roll material can be smoothly transported to the output roller and output. Furthermore, in the height direction of the frame, the feeding roller is located above the output roller, and a predetermined height difference is formed between the upper surface of the feeding roller and the lower surface of the output roller. The feeding guide and the output guide guide the transport of the roll material, improving the turning accuracy of the roll material within the turning assembly, which is beneficial for downstream components to perform precise operations on the roll material.

[0058] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0059] like Figure 1 As shown, this embodiment provides a roll flipping device 10, which can be used to flip any roll of paper, plastic sheet or flexible conductive sheet, etc. For example, the roll flipping device 10 can be set in a double-sided printing machine, a laminating machine, a circuit board processing line, etc. This embodiment does not limit this only. For ease of understanding, the following description takes flipping paper by the roll flipping device 10 as an example.

[0060] Specifically, this roll-over device 10 includes a frame 100, and a feed guide 200, a turnover assembly 300, and a discharge guide 400 sequentially arranged on the frame 100 along the roll transport direction. The frame 100 may include two spaced-apart side plates 110, and multiple roller groups can be arranged between the two side plates 110 to support the rollers. To ensure that the spacing between the two side plates 110 is equal at all points, at least two precision-machined mandrels of equal length can be placed between the two side plates 110 during assembly to ensure that the two side plates 110 are assembled parallel to each other.

[0061] Furthermore, the feeding guide 200 includes a feeding roller 210 and a first guide roller 220 arranged at intervals along the height direction, and the rolled material enters the flipping assembly 300 sequentially via the feeding roller 210 and the first guide roller 220.

[0062] The discharge guide 400 includes a second guide roller 420 and a discharge roller 410 arranged at intervals along the height direction. The rolled material is sequentially fed out of the rolled material turning device 10 via the second guide roller 420 and the discharge roller 410.

[0063] In typical printing equipment, the upstream printing module is higher than the downstream printing module. That is, the roll material is input into the roll turning device 10 from a high position and output from the roll turning device 10 to a low position. Therefore, in this embodiment, in the height direction of the frame 100, the feed roller 210 is located above the output roller 410, and a predetermined height difference is formed between the upper surface of the feed roller 210 and the lower surface of the output roller 410. The height difference can be designed according to the actual situation and specific needs, for example, it can be 10 cm, 15 cm or 24 cm.

[0064] Of course, in other cases, such as when the roll material is input into the roll turning device 10 from a low position and output from the roll turning device 10 to a high position, the feed roller 210 may be positioned below the discharge roller 410 in the height direction, and a predetermined height difference may be formed between the lower surface of the feed roller 210 and the upper surface of the discharge roller 410. This embodiment does not limit this to a single case.

[0065] In this embodiment, after the roll material enters the roll material flipping device 10, it sequentially passes through the feeding guide 200, the flipping assembly 300, and the discharge guide 400, and is output from the discharge guide 400. Specifically, in the height direction of the frame 100, the feeding roller 210 is located above the discharge roller 410, and a predetermined height difference is formed between the upper surface of the feeding roller 210 and the lower surface of the discharge roller 410 to accommodate working conditions where there is a height difference between upstream and downstream components. For example, in printing equipment, the printing module located upstream of the roll material flipping device 10 is typically higher than the printing module located downstream of the roll material flipping device 10. Furthermore, the feed guide 200 also includes first guide rollers 220 spaced apart from the feed roller 210 along the height direction to ensure that the roll material can accurately enter the flipping assembly 300 and be flipped as expected. The discharge guide 400 also includes second guide rollers 420 spaced apart from the discharge roller 410 along the height direction to ensure that the flipped roll material can be smoothly conveyed to the discharge roller 410 and output, avoiding the output roll material from deviating in other directions.

[0066] Specifically, the flipping assembly 300 includes a first flipping roller 310, a second flipping roller 320, and a transition roller 330 disposed on the frame 100. The first flipping roller 310 and the second flipping roller 320 are spaced apart from each other in the height direction. At the same time, the first flipping roller 310 and the second flipping roller 320 extend obliquely relative to the transport direction, while the transition roller 330 is located on the same side of the first flipping roller 310 and the second flipping roller 320 and extends along the transport direction.

[0067] More specifically, in this embodiment, the feed roller 210, the first guide roller 220, the second guide roller 420, and the discharge roller 410 all extend perpendicular to the transport direction.

[0068] like Figure 2 As shown, viewed from the side of the frame 100, in the height direction of the frame 100, the upper surface of the first turning roller 310 is flush with the lower surface of the transition roller 330, and the upper surface of the transition roller 330 is flush with the lower surface of the second turning roller 320.

[0069] Furthermore, such as Figure 3 As shown, viewed along the height of the frame 100, the first turning roller 310 and the second turning roller 320 extend intersectingly. Specifically, both the first turning roller 310 and the second turning roller 320 extend at a 45° angle relative to the transport direction. Since both the first turning roller 310 and the second turning roller 320 extend at a 45° angle relative to the transport direction, the roll material output after being turned by the first turning roller 310 can be accurately transported toward the transition roller 330. The roll material output from the transition roller 330 can be accurately transported toward the second turning roller 320. The transport of the roll material between the first turning roller 310 and the transition roller 330, and between the transition roller 330 and the second turning roller 320, can be well connected, and finally it can be accurately output along the transport direction.

[0070] In this embodiment, as Figure 4 As shown, the coil 20 from the feed guide 200 sequentially passes through the first turning roller 310, the transition roller 330, and the second turning roller 320 into the discharge guide 400. Taking the front side of the coil 20 as an example, the coil 20 first passes through the upper surface of the feed roller 210 into the coil turning device 10, then is transported along the height direction to the first guide roller 220, and from the lower surface of the first guide roller 220 to the lower surface of the first turning roller 310. After passing through the first turning roller 310, the coil 20 is turned over. At this point, the reverse side of the coil 20 is facing upwards and its transport direction has changed. Then, the transport direction of the coil 20 is adjusted by the transition roller 330 and a second flip is performed. After the transport direction adjustment, the front side of the coil 20 faces upwards and is flipped a third time by the second flipping roller 320. Now, the reverse side of the coil 20 faces upwards and is transported to the second guide roller 420 according to the expected transport direction. After passing the upper surface of the second guide roller 420, it is transported along the height direction to the output roller 410 and finally output from the output roller 410. Therefore, this flipping assembly 300 can not only accurately flip the coil 20 but also ensure that the coil 20 is output according to the expected transport direction, improving the applicability of the coil flipping device 10.

[0071] Furthermore, the first guide roller 220, located between the feed roller 210 and the first turning roller 310, can transition the transport direction of the roll material, ensuring that the roll material enters the first turning roller 310 horizontally. Similarly, the second guide roller 420, located between the second turning roller 320 and the discharge roller 410, can transition the transport direction of the roll material, ensuring that the roll material is output horizontally from the second turning roller 320 and enters the discharge roller 410 vertically. This ensures that the direction of the roll material entering or exiting the turning assembly 300 is not affected by the feed roller 210 and the discharge roller 410, thus ensuring that the roll material is accurately turned.

[0072] Furthermore, when the roll is flipped using this flipping assembly 300, no deviation in other directions occurs; and the transport of the roll between the first flipping roller 310 and the transition roller 330, and between the transition roller 330 and the second flipping roller 320, can be well connected, and finally it can be accurately output along the transport direction.

[0073] To reduce the risk of the roll material shifting during the flipping process, in this embodiment, both the first flipping roller 310 and the second flipping roller 320 are configured as hollow cylindrical structures with multiple air holes 301 formed on their outer peripheral surfaces.

[0074] Furthermore, one end of both the first turning roller 310 and the second turning roller 320 is connected to an external air pump. With the air pump continuously and stably supplying air into the turning roller, multiple air holes 301 on the turning roller blow air outward, forming a stable air pressure that slightly suspends the roll material. This transforms the friction between solids into friction between solids and gas. Moreover, the distribution of air holes 301 reduces the dynamic contact area between the roll material and the turning roller, thereby reducing the friction between the surfaces of the roll material and the turning roller, making the roll material transport smoother and the wear rate lower. The outer peripheral surfaces of the first turning roller 310 and the second turning roller 320 can form ten, eighteen, twenty, or other numbers of air holes 301. This embodiment does not specifically limit this number.

[0075] In this embodiment, the multiple air holes 301 should be evenly and alternately distributed on the outer peripheral surface of the turning roller, such as... Figure 5 As shown, taking the first turning roller 310 as an example, the first turning roller 310 is provided with multiple air vents 301 at intervals along the circumference. The air vents 301 in two adjacent rows are staggered from each other. Furthermore, the distance between two adjacent air vents 301 in each air vent 301 can be 62 mm, 50 mm, 45 mm or other distances. This embodiment does not make specific limitations on this.

[0076] Of course, the outer peripheral surfaces of the first turning roller 310 and the second turning roller 320 may also form multiple protrusions or recesses to reduce the contact area between the turning roller and the roll material, thereby reducing the friction between the roll material and the surface of the turning roller, making the transmission of the roll material more stable. The outer peripheral surfaces of the first turning roller 310 and the second turning roller 320 may form ten, eighteen, twenty or other numbers of protrusions and recesses. This embodiment does not make specific limitations on this.

[0077] Furthermore, taking the outer peripheral surfaces of the first flip roller 310 and the second flip roller 320 as an example, the height of the protrusion relative to the outer peripheral surface of the flip roller can be 0.02 mm, 0.05 mm or 0.11 mm. This embodiment does not specifically limit this as well.

[0078] It should be noted that, for this type of flipping assembly 300, the feed guide 200 and the discharge guide 400 need to ensure that, in the height direction of the frame 100, the first guide roller 220 is located below the feed roller 210, and the lower surface of the first guide roller 220 is flush with the lower surface of the first flipping roller 310; the second guide roller 420 is located above the discharge roller 410, and the upper surface of the second guide roller 420 is flush with the upper surface of the second flipping roller 320. This ensures that the roll material guided by the first guide roller 220 can pass accurately and smoothly through the first flipping roller 310. Simultaneously, the roll material output from the flipping assembly 300, guided by the first guide roller 220, can be accurately and smoothly transported to the discharge roller 410, thereby improving the smoothness of the roll material transport within the roll flipping device 10, especially meeting the condition where there is a height difference between the feed and discharge positions of the roll flipping device 10.

[0079] To ensure that the first and second turning rollers 310 and 320 in the turning assembly 300 are assembled in predetermined positions, and to guarantee the positional relationship between other rollers (e.g., guide rollers), thereby improving the smoothness of the roll transport, in this embodiment, as follows: Figure 1 and Figure 6 As shown, both ends of the first tilting roller 310 and the second tilting roller 320 are connected to the frame 100 via adjusting components 500. The first tilting roller 310 and the second tilting roller 320 can respectively adjust the position of their ends in the height direction and their tilt angle relative to the transport direction via the corresponding adjusting components 500. Of course, the adjusting components 500 can also adjust only the position of each tilting roller in the height direction, or only the tilt angle of each tilting roller relative to the transport direction. This embodiment does not limit this to a single method.

[0080] Specifically, such as Figure 6As shown, each adjustment assembly 500 includes an adjustment base plate 510 extending in the height direction and a connecting seat 520 protruding from one side of the adjustment base plate 510. The adjustment base plate 510 is mounted on the frame 100, and the connecting seat 520 is used to mount the corresponding end of the flipping roller and connect it to the adjustment base plate 510.

[0081] The adjusting base plate 510 is provided with a first adjusting hole extending in the height direction. The base plate fastening assembly (e.g., fastening bolt) can be adjustedly connected to the first adjusting hole and to the frame 100 in the height direction. By changing the position of the adjusting base plate 510 in the height direction, the position of the turning roller in the height direction is changed, so that the lower surface of the first turning roller 310 is flush with the lower surface of the first guide roller 220, and the upper surface of the second turning roller 320 is flush with the upper surface of the second guide roller 420.

[0082] Meanwhile, the connecting seat 520 is provided with a second adjustment hole that extends obliquely relative to the transport direction. The corresponding ends of the first tilting roller 310 or the second tilting roller 320 are movably connected to the second adjustment hole via shaft end fasteners (e.g., fastening bolts). By adjusting the position of the corresponding ends of the first tilting roller 310 or the second tilting roller 320 on the second adjustment hole, the tilt angle of the corresponding tilting roller relative to the transport direction can be adjusted. For example, the first tilting roller 310 and the second tilting roller 320 can both extend obliquely at 45° relative to the transport direction. The right angle between the first tilting roller 310 and the second tilting roller 320 should be 90°. Of course, in actual practice, a very small deviation (e.g., 0.2°) in the tilt angle of the first tilting roller 310 and the second tilting roller 320 relative to the transport direction is allowed.

[0083] Furthermore, such as Figure 1 As shown, the transition roller 330 is provided with a fixed seat 600 at both ends, and the frame 100 is provided with a third adjustment hole extending along the height direction at the corresponding position of each fixed seat 600. The fixed seat 600 is adjustablely connected to the third adjustment hole along the height direction by a fixed seat 600 fastening assembly (e.g., fastening bolt). By adjusting the position of the fixed seats 600 at both ends of the transition roller 330 in the height direction, it is ensured that the lower surface of the transition roller 330 is flush with the upper surface of the first flip roller 310, and the upper surface of the transition roller 330 is flush with the lower surface of the second flip roller 320.

[0084] The means and design for adjusting the positions of the first flipping roller 310, the second flipping roller 320, and the transition roller 330 are not limited to the structures in the above embodiments. For example, the adjusting base plate 510 can be mounted on the frame 100 through a strip hole, or the adjusting base plate 510 can be slidably mounted on a guide rail along the height direction on the frame 100. The connecting seat 520 at the end of the flipping roller can be hinged to the adjusting base plate 510, or the connecting seat 520 can cooperate with the corresponding gear on the adjusting base plate 510 through an adjusting gear, etc. The fixing seat 600 at the end of the transition roller 330 can be connected to a nut on the frame 100 through a screw extending along the height direction, etc. Those skilled in the art can design according to actual conditions and specific needs, and this embodiment does not limit this to a single design.

[0085] Furthermore, the structure of the flipping component 300 is not limited to the structure in the above embodiment. It is also possible to simply provide a flipping roller that extends at an angle of 45° relative to the transport direction. After the roll material output from the first guide roller 220 is flipped by the flipping roller, the roll material will be output in a direction that is 90° inclined relative to the input direction. This embodiment does not limit this to a single aspect.

[0086] This embodiment also discloses a printing device, including multiple printing modules and a roll-to-roll device 10 of any one of the above, wherein the roll-to-roll device 10 is disposed between any two printing modules among the multiple printing modules.

[0087] In this embodiment, the roll flipping device 10, which is set between any two printing modules in a plurality of printing modules, is particularly suitable for the working condition where the two printing modules are spaced apart in the height direction. It can ensure that the roll output from the higher printing module is flipped and accurately transported to the lower printing module.

[0088] It should be noted that, in addition to the specific embodiments described above, those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model is presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to that embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. In order to provide a deep understanding of this utility model, many specific details are included in the above description, and this utility model may also be implemented without using these details. In addition, in order to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0089] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0090] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0091] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0092] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0093] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A roll material inverting device, characterized by, The roll turnover device comprises a rack, and a feeding guide, a turnover assembly and a discharging guide arranged in sequence along a material roll conveying direction on the rack. The feeding guide comprises feeding rollers and first guide rollers arranged in sequence along a height direction, and the material roll passes through the feeding rollers and the first guide rollers in sequence to enter the turnover assembly. The discharging guide comprises second guide rollers and discharging rollers arranged in sequence along the height direction, and the material roll passes through the second guide rollers and the discharging rollers in sequence to be discharged from the roll turnover device. In the height direction of the rack, the feeding rollers are located above the discharging rollers, and a predetermined height difference is formed between the upper surface of the feeding rollers and the lower surface of the discharging rollers.

2. The roll turnover device according to claim 1, wherein The turnover assembly comprises first turnover rollers, second turnover rollers and a transition roller arranged on the rack, the first turnover rollers and the second turnover rollers are spaced apart from each other in the height direction and both extend obliquely relative to the conveying direction, and the first turnover rollers and the second turnover rollers extend across each other in the height direction of the rack. The transition roller is located on the same side of the first turnover rollers and the second turnover rollers and extends along the conveying direction. The material roll from the feeding guide passes through the first turnover rollers, the transition roller and the second turnover rollers in sequence to enter the discharging guide.

3. The roll stock inversion apparatus of claim 2, wherein, The feeding rollers, the first guide rollers, the second guide rollers and the discharging rollers all extend perpendicularly to the conveying direction. The first turnover rollers and the second turnover rollers both extend obliquely at an angle of 45° relative to the conveying direction in the height direction of the rack. In the height direction of the rack, the upper surface of the first turnover rollers is flush with the lower surface of the transition roller, and the upper surface of the transition roller is flush with the lower surface of the second turnover rollers.

4. The roll material turning device of claim 3, wherein In the height direction of the rack, the first guide rollers are located below the feeding rollers, and the lower surface of the first guide rollers is flush with the lower surface of the first turnover rollers; and the second guide rollers are located above the discharging rollers, and the upper surface of the second guide rollers is flush with the upper surface of the second turnover rollers. Both ends of the first turnover rollers and the second turnover rollers are connected to the rack through adjusting assemblies, and the first turnover rollers and the second turnover rollers can respectively adjust the position of the respective end portion in the height direction and / or the inclination angle relative to the conveying direction through the corresponding adjusting assemblies. Each adjusting assembly comprises an adjusting base plate extending along the height direction and a connecting seat protruding from one side of the adjusting base plate. The adjusting base plate is provided with a first adjusting hole extending along the height direction, and a base plate fastening assembly is adjustably connected to the first adjusting hole and the rack in the height direction.

5. A roll material turning device according to claim 3 or 4, characterised in that The first adjusting hole is provided with a first adjusting hole extending along the height direction, and a base plate fastening assembly is adjustably connected to the first adjusting hole and the rack in the height direction.

6. The roll material turning device of claim 5, wherein, ​ ​ A second adjusting hole extending obliquely relative to the conveying direction is arranged on the connecting seat, and a corresponding end of the first turnover roller or the second turnover roller is movably connected to the second adjusting hole through an axle end fastener.

7. A roll material turning device according to claim 3 or 4, characterised in that The transition roller is provided with a fixing seat at both ends, and The machine frame is provided with a third adjusting hole extending in the height direction at a corresponding position of each fixing seat, and the fixing seat is adjustably connected to the third adjusting hole through a fixing seat fastening assembly.

8. The roll material turning device of claim 3 or 4, wherein The first turnover roller and the second turnover roller are both hollow cylindrical structures with a plurality of air holes formed on the outer circumferential surface; and One end of the first turnover roller and the second turnover roller is connected with an external air pump, so that the first turnover roller and the second turnover roller can blow air outward from the plurality of air holes on the outer circumferential surface.

9. The roll material turning device of claim 3 or 4, wherein The outer circumferential surface of the first turnover roller and the second turnover roller forms a plurality of protrusions or recesses.

10. A printing apparatus characterized by comprising: The printing system comprises a plurality of printing modules and the web turnover device according to any one of claims 1-9, and the web turnover device is arranged between any two of the printing modules.

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