Spraying device and roll forming machine

Abstract

The present invention relates to the technical field of roll-to-roll equipment, and provides a spraying device and a roll-to-roll forming machine, wherein an ink-distributing platform is provided on one side of a nozzle seat adjacent to an ink roller, the ink-distributing platform is in an arc shape and its center coincides with the axis of the ink roller, the nozzle seat is provided with an inkjet port on the ink-distributing platform, the inkjet port is adjacent to an access end and is provided in a straight line along the axial direction of the ink-distributing platform, and the inkjet port can spray ink onto the circumferential side wall of the ink roller to form a spraying area; the blowing seat is relatively fixed to the nozzle seat, the blowing seat is adjacent to an exit end, the blowing seat is provided with an air blower port, the air blower port discharges gas along the tangential direction of the ink roller, and the gas acts on the spraying area. By providing the ink-distributing platform, after the ink is sprayed onto the ink roller, it can be evenly diffused between the gaps between the two, and the inkjet port is provided at the access end, thereby extending the contact time between the spraying area and the ink-distributing platform, and providing the blowing seat can prevent the ink from adhering to the exit end to form ink droplets, causing the shaping of the ink-distributing platform to fail.

Description

Technical Field

[0001] The present invention relates to the technical field of roll-to-roll equipment, and in particular to a spraying device and a roll-to-roll forming machine. Background Art

[0002] The SE 90E roll-forming machine is the roll-forming component of the ZJ112 cigarette-joining unit, primarily performing paper feeding, printing, roll-forming, and cutting processes. The brand box component of this equipment primarily prints the trademark image on cigarette paper. During actual production, this machine encountered issues with the brand box due to ink droplets forming at the ink nozzles and uneven ink distribution by the ink roller. This resulted in the printed trademark image being discolored, blurred, and unclean. This severely impacted the quality stability and reliability of cigarette products, increasing the risk of substandard products entering the market.

[0003] Therefore, there is an urgent need for a spraying device and a roll forming machine to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a spraying device and a roll forming machine, which can perform preliminary shaping of the ink coating on the ink roller at the ink jet port to make it evenly distributed and can suppress the generation of ink droplets on the ink roller.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Spraying device, comprising:

[0007] The nozzle holder is located on one radial side of the ink roller and can be fixed relatively to the axis of the ink roller, and an ink uniformity platform is provided on the side of the nozzle holder adjacent to the ink roller, the ink uniformity platform is arc-shaped and its center coincides with the axis of the ink roller, the ink uniformity platform includes an access end and an exit end, the access end and the exit end are respectively located at the head and tail ends of the circumferential direction of the ink uniformity platform, one point of the circumferential side wall of the ink roller can pass through the access end and the exit end in sequence, the nozzle holder is provided with an ink jet port on the ink uniformity platform, the ink jet port is adjacent to the access end and is opened in a straight line along the axial direction of the ink uniformity platform, and the ink jet port can spray ink onto the circumferential side wall of the ink roller to form a spraying area;

[0008] A blowing seat is fixed relatively to the nozzle seat, the blowing seat is adjacent to the exit end, the blowing seat is provided with a blowing port, the blowing port discharges gas along the tangential direction of the ink roller, and the gas acts on the spraying area.

[0009] As a preferred technical solution for the above-mentioned spraying device, the nozzle holder is provided with an ink inlet and a plurality of ink jet ports, the ink inlet is located on the side opposite to the ink uniforming platform, the plurality of ink jet ports are arranged in sequence around the axis of the ink uniforming platform, and the plurality of ink jet ports are all connected to the ink inlet.

[0010] As a preferred technical solution of the above-mentioned spraying device, the ink distribution platform is arranged on one side of the nozzle holder in the first direction, and the nozzle holder includes a plurality of mounting blocks that are detachably connected in sequence along the second direction, and the ink jet port is formed between two adjacent mounting blocks in the second direction;

[0011] The first direction is perpendicular to the second direction.

[0012] As a preferred technical solution of the above-mentioned spraying device, the mounting block is provided with an ink outlet groove on the end surface in the second direction, and the ink outlet groove is arranged at an angle on two opposite side walls symmetrically in the third direction, the intersection side of the angle forms an ink outlet connected to the ink inlet, and the opening side of the angle forms the ink jet port on the ink uniforming platform;

[0013] The first direction, the second direction and the third direction are perpendicular to each other.

[0014] As an optimal technical solution for the above-mentioned spraying device, the nozzle holder includes a first mounting block, a second mounting block and a third mounting block connected in sequence along the second direction, and a main channel and a branch channel are opened in the second mounting block. The main channel is opened along the first direction and one end of the main channel forms the ink inlet on the side away from the ink uniforming platform. The branch channel is opened along the second direction, the middle part of the branch channel is connected to the other end of the main channel and the axis of the main channel is the mid-vertical line of the branch channel, and the two ends of the branch channel form the ink outlet on the opposite end surfaces of the second mounting block respectively.

[0015] The roll forming machine includes a shell, the above-mentioned ink roller and the above-mentioned spraying device. The spraying device is fixed relatively to the shell. The ink roller includes a roller shaft and a roller. The roller is sleeved on one axial end of the roller shaft and is fixed relatively to the above-mentioned roller shaft. The roller shaft is rotatably connected to the shell, and the ink sprayed from the inkjet port can be sprayed onto the outer peripheral wall of the roller.

[0016] As an optimal technical solution of the above-mentioned roll-to-form machine, the ink roller also includes a roller seat, which is fixedly connected to the shell, and the roller seat is sleeved on the other axial end of the roller shaft and rotates relative to it. The nozzle seat is connected to the roller seat through a connecting frame, and the connecting frame includes a mounting seat and a connecting rod. The mounting seat can be fixed to the roller seat, and the connecting rod connects the mounting seat and the nozzle seat. The connecting rod and the mounting seat can move and be locked along the first direction, and the nozzle seat and the connecting rod can move and be locked along the second direction.

[0017] As a preferred technical solution for the above-mentioned roll-forming machine, the connecting rod and one of the mounting seat are provided with a first waist-shaped hole along the first direction, the connecting rod and the mounting seat are connected by a first bolt, the first bolt can slide in the first waist-shaped hole, the nozzle seat and one of the connecting rod are provided with a second waist-shaped hole along the second direction, the nozzle seat and the connecting rod are connected by a second bolt, and the second bolt can slide relative to each other in the second waist-shaped hole.

[0018] As an optimal technical solution of the above-mentioned rolling forming machine, the mounting seat is arranged outside the roller seat, and the mounting seat is connected to the roller seat through a third bolt. There are multiple third bolts, which are evenly distributed around the axis of the roller shaft. The third bolt is threadedly connected to the mounting seat, and the end of the third bolt can abut against the outer peripheral wall of the roller seat along the radial direction of the roller seat.

[0019] As a preferred technical solution of the above-mentioned roll-forming machine, the mounting seat is detachably connected to a handle, and the line connecting the handle and the axis of the roller shaft and the line connecting the nozzle seat and the axis of the roller shaft are arranged at an angle.

[0020] Beneficial effects of the present invention:

[0021] The ink uniforming platform is coaxially arranged with the ink roller, and an equidistant gap is formed between the ink uniforming platform and the peripheral side wall of the ink roller. When in use, the ink roller rotates around its own axis, and its peripheral side wall rotates from the access end into the ink uniforming platform. The nozzle seat is provided with an inkjet port at the access end, and the inkjet port sprays ink onto the peripheral side wall of the ink roller to form a spraying area. As the ink roller continues to rotate, the spraying area contacts the ink uniforming platform. The distance between the ink uniforming platform and the ink roller is constant, so that the ink coating is evenly distributed under the extrusion of the ink roller and the ink uniforming platform. Furthermore, in this embodiment, a blowing seat is provided at the exit end, and the air flow blown out of the blowing port is tangent to the peripheral side wall of the ink roller, which can avoid ink dripping at the exit end and prevent the ink droplets from being drawn into the ink roller and causing uneven ink distribution.

[0022] Thus, in this embodiment, by setting up an ink uniformity platform, after the ink is sprayed onto the ink roller, it can diffuse evenly between the gap between the two, and the ink jet port is set at the access end, thereby extending the contact time between the spraying area and the ink uniformity platform, and by setting up a blowing seat, it can be prevented that the ink adheres to the exit end to form ink droplets, causing the shaping of the ink uniformity platform to fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0024] Figure 1 Schematic diagram of the structure of the spraying device provided by an embodiment of the present invention;

[0025] Figure 2 1 is an exploded schematic diagram of a spraying device provided by an embodiment of the present invention;

[0026] Figure 3 is a front view of a spraying device provided by an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the assembly of the nozzle holder and the blowing holder provided in an embodiment of the present invention;

[0028] Figure 5 is an exploded schematic diagram of a nozzle holder provided by an embodiment of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the second mounting block provided by an embodiment of the present invention.

[0030] In the picture:

[0031] X, first direction; Y, second direction; Z, third direction;

[0032] 100, nozzle holder; 101, first mounting block; 102, second mounting block; 103, third mounting block; 110, ink distribution platform; 111, access port; 112, exit port; 120, ink jet port; 130, ink inlet; 140, ink outlet slot; 141, ink outlet; 150, main flow channel; 160, branch flow channel;

[0033] 200, ink roller; 210, roller shaft; 220, roller; 230, roller seat;

[0034] 300, hair dryer seat; 310, hair dryer outlet;

[0035] 410, mounting seat; 420, connecting rod; 421, second waist-shaped hole; 430, first bolt; 440, second bolt; 450, third bolt. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0037] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0040] like Figures 1 to 6As shown, the present application provides a spraying device, including a nozzle holder 100 and a blowing holder 300. The nozzle holder 100 is located on one radial side of the ink roller 200 and can be fixed relative to the axis of the ink roller 200. An ink uniformity platform 110 is provided on the side of the nozzle holder 100 adjacent to the ink roller 200. The ink uniformity platform 110 is arc-shaped and its center coincides with the axis of the ink roller 200. The ink uniformity platform 110 includes an access end 111 and an exit end 112. The access end 111 and the exit end 112 are respectively located at the head and tail ends of the circumferential direction of the ink uniformity platform 110. One point of the circumferential side wall of the ink roller 200 can pass through the access end 111 and the exit end 112 in sequence. At the exit end 112, the nozzle holder 100 is provided with an ink jet port 120 on the ink uniforming platform 110. The ink jet port 120 is adjacent to the access end 111 and is formed in a straight line along the axial direction of the ink uniforming platform 110. The ink jet port 120 can spray ink onto the peripheral side wall of the ink roller 200 to form a spraying area; the blowing seat 300 is relatively fixed to the nozzle holder 100, and the blowing seat 300 is adjacent to the exit end 112. The blowing seat 300 is provided with a blowing port 310, and the blowing port 310 discharges gas along the tangential direction of the ink roller 200, and the gas acts on the spraying area.

[0041] A roll-to-roll forming machine is also provided, comprising a shell, the above-mentioned spraying device and an ink roller 200. The spraying device is fixed relative to the shell. The ink roller 200 comprises a roller shaft 210 and a roller 220. The roller 220 is sleeved on one axial end of the roller shaft 210 and is fixed relative to the roller shaft 210. The roller shaft 210 is rotatably connected to the shell, and the ink sprayed from the inkjet port 120 can be sprayed onto the outer peripheral wall of the roller 220.

[0042] Specifically, the ink distribution platform 110 is coaxially arranged with the ink roller 200, and an equidistant gap is formed between the ink distribution platform 110 and the peripheral side wall of the ink roller 200. When in use, the ink roller 200 rotates around its own axis, and its peripheral side wall rotates from the access end 111 into the ink distribution platform 110. The nozzle holder 100 is provided with an ink jet port 120 at the access end 111. The ink jet port 120 sprays ink onto the peripheral side wall of the ink roller 200 to form a spraying area. As the ink roller 200 continues to rotate, the spraying area is increased. The area is in contact with the ink uniforming platform 110, and the distance between the ink uniforming platform 110 and the ink roller 200 is certain, so that the ink coating is evenly distributed under the extrusion of the ink roller 200 and the ink uniforming platform 110. Furthermore, in this embodiment, a blowing seat 300 is provided at the exit end 112, and the air flow blown out by the blowing port 310 is tangent to the peripheral side wall of the ink roller 200, which can avoid the ink from gathering at the exit end 112 and prevent the ink droplets from being drawn into the ink roller 200 and causing uneven ink distribution.

[0043] Thus, in this embodiment, by setting up the ink uniforming platform 110, after the ink is sprayed onto the ink roller 200, it can be evenly diffused between the two, and the ink nozzle 120 is set at the access end 111, thereby extending the contact time between the spraying area and the ink uniforming platform 110, and by setting up the blowing seat 300, it can be avoided that the ink adheres to the exit end 112 to form ink droplets, causing the ink uniforming platform 110 to fail in shaping the spraying area.

[0044] Preferably, the distance between the ink distribution platform 110 and the ink roller 200 is 0.1 mm.

[0045] Optionally, the nozzle holder 100 is provided with an ink inlet 130 and a plurality of ink jet ports 120. The ink inlet 130 is located on the side opposite to the ink distribution platform 110. The plurality of ink jet ports 120 are arranged in sequence around the axis of the ink distribution platform 110 and are all connected to the ink inlet 130. This can reduce the phenomenon of ink accumulation in the ink jet ports 120 and the impact of ink viscosity blockage on the ink flow of the nozzle holder 100. When one ink jet port 120 is blocked, the other ink jet ports 120 can still flow ink normally, reducing the frequency of disassembly and cleaning of the nozzle holder 100.

[0046] In this embodiment, the ink inlet 130 is disposed on a side facing away from the ink distribution platform 110 . In other embodiments, the ink inlet 130 is disposed on two opposite sides of the ink distribution platform 110 in the third direction Z.

[0047] Optionally, the ink distribution platform 110 is disposed on one side of the nozzle holder 100 in the first direction X. The nozzle holder 100 includes a plurality of mounting blocks that are sequentially detachably connected along the second direction Y, with an ink jet port 120 formed between two adjacent mounting blocks in the second direction Y. The first direction X is perpendicular to the second direction Y. Thus, the nozzle holder 100 is formed by the plurality of mounting blocks that are assembled along the second direction Y. At least one of the two adjacent mounting blocks defines a groove. The groove includes an ink jet port 120 formed on the ink distribution platform 110 along the first direction X, and a cleaning port formed along the second direction Y. When the two adjacent mounting blocks are fixed, the cleaning port is blocked. In this manner, the groove can be exposed by removing the corresponding mounting block, allowing staff to clean the interior of the ink jet port 120.

[0048] Optionally, an ink outlet groove 140 is formed on the end surface of the mounting block in the second direction Y. The ink outlet groove 140 is arranged at an angle with two opposite walls symmetrically disposed in the third direction Z. The intersection of the angle forms an ink outlet 141 connected to the ink inlet 130, and the opening of the angle forms the ink jet outlet 120 on the ink distribution platform 110. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other. In this way, the oil discharged from the ink outlet 141 can evenly fill the ink outlet groove 140, ensuring uniform distribution of ink at the ink jet outlet 120.

[0049] Optionally, the nozzle holder 100 includes a first mounting block 101, a second mounting block 102 and a third mounting block 103 connected in sequence along the second direction Y, and a main channel 150 and a branch channel 160 are opened in the second mounting block 102. The main channel 150 is opened along the first direction X and one end thereof forms an ink inlet 130 on the side away from the ink uniforming platform 110. The branch channel 160 is opened along the second direction Y, and the middle part of the branch channel 160 is connected to the other end of the main channel 150 and the axis of the main channel 150 is the mid-vertical line of the branch channel 160. The two ends of the branch channel 160 form ink outlets 141 on the opposite end surfaces of the second mounting block 102 respectively.

[0050] Specifically, in this embodiment, the nozzle holder 100 is provided with two inkjet ports 120, which are recorded as the first inkjet port and the second inkjet port. The first inkjet port is formed between the first mounting block 101 and the second mounting block 102, and the second inkjet port is formed between the second mounting block 102 and the third mounting block 103. The ink can flow from the ink inlet 130 through the main channel 150 and the branch channel 160 in sequence to reach the two inkjet ports 120, and since the distance between the ink inlet 130 and the two ink outlets 141 is close, the ink in the inkjet port 120 is more uniform.

[0051] Optionally, the ink roller 200 also includes a roller seat 230, which is fixedly connected to the shell. The roller seat 230 is sleeved on the other axial end of the roller shaft 210 and rotates relative to it. The nozzle seat 100 is connected to the roller seat 230 through a connecting frame. The connecting frame includes a mounting seat 410 and a connecting rod 420. The mounting seat 410 can be fixed to the roller seat 230. The connecting rod 420 connects the mounting seat 410 and the nozzle seat 100. The connecting rod 420 and the mounting seat 410 can move and be locked along the first direction X, and the nozzle seat 100 and the connecting rod 420 can move and be locked along the second direction Y.

[0052] Specifically, during use, when ink is sprayed from the ink nozzle 120 onto the ink roller 200, a force is always applied to the ink roller 200 away from the nozzle holder 100, and when the ink roller 200 contacts the ink uniforming platform 110, the ink is squeezed between the two to achieve the effect of spreading the ink on the peripheral side wall of the ink roller 200 and evenly distributing the ink. While the ink is being squeezed, the ink roller 200 and the ink uniforming platform 110 are also subjected to a reaction force applied by the ink, causing the two to move away from each other. In this way, the distance between the ink roller 200 and the ink uniforming platform 110 gradually increases, resulting in ink accumulation. In addition, an ink uniforming roller is generally also provided in the roll-to-roll forming machine. The ink distribution roller is parallel to the ink roller 200, and the peripheral side walls of the two can squeeze the spraying area at the same time, further squeezing and flattening the ink on the ink roller 200. This causes the ink roller 200 to wear during the contact process with the ink distribution roller, and also causes the distance between the ink roller 200 and the ink distribution platform 110 to increase. For this reason, in this embodiment, the nozzle holder 100 can adjust the distance between it and the ink roller 200 through the connecting frame, and adjust it in the first direction X and the second direction Y respectively to maintain the concentric setting between the ink distribution platform 110 and the ink roller 200, thereby ensuring that the distance between the ink distribution platform 110 and the peripheral side walls of the ink roller 200 is equal everywhere.

[0053] In other embodiments, the roller seat 230 and the housing are integrally formed.

[0054] Optionally, one of the connecting rod 420 and the mounting seat 410 has a first waist-shaped hole along the first direction X, and the connecting rod 420 and the mounting seat 410 are connected by a first bolt 430, and the first bolt 430 can slide in the first waist-shaped hole, and one of the nozzle seat 100 and the connecting rod 420 has a second waist-shaped hole 421 along the second direction Y, and the nozzle seat 100 and the connecting rod 420 are connected by a second bolt 440, and the second bolt 440 can slide relative to each other in the second waist-shaped hole 421.

[0055] Specifically, in this embodiment, the connecting rod 420 includes a first connecting section and a second connecting section, which are connected and fixed in an L-shape. The first connecting section defines a first waist-shaped hole, and the mounting base 410 defines a first threaded hole. A first bolt 430 passes through the first waist-shaped hole and is threadedly connected to the first threaded hole. When the relative position between the mounting base 410 and the connecting rod 420 needs to be locked, the first bolt 430 is rotated forward, further advancing the first bolt 430 into the first threaded hole. The nut of the first bolt 430 tightens the first connecting section against the mounting base 410. When the relative position of the connecting rod 420 and the mounting base 410 in the first direction X needs to be adjusted, the first bolt 430 is rotated backward. The second connecting section defines a second waist-shaped hole 421. The nozzle holder 100 has a connecting ear protruding in the third direction Z. The connecting ear defines a second threaded hole corresponding to the second waist-shaped hole 421. The second bolt 440 passes through the second waist-shaped hole 421 and is threadedly connected to the second threaded hole.

[0056] Optionally, the mounting seat 410 is sleeved outside the roller seat 230, and the mounting seat 410 is connected to the roller seat 230 through a third bolt 450. A plurality of third bolts 450 are provided, which are evenly distributed around the axis of the roller shaft 210. The third bolts 450 are threadedly connected to the mounting seat 410, and the end of the third bolt 450 can abut against the outer peripheral wall of the roller seat 230 along the radial direction of the roller seat 230. Specifically, a plurality of third threaded holes are provided on the outer peripheral side of the mounting seat 410, and the third threaded holes are provided along the radial direction of the roller seat 230. The plurality of third threaded holes correspond one to one with the plurality of third bolts 450, and the third bolts 450 can be threadedly connected to the mounting seat 410 through the third threaded holes. By screwing the third bolts 450, the third bolts 450 can be moved close to or away from the peripheral side wall of the roller seat 230. When it is necessary to fix the relative position between the mounting seat 410 and the roller seat 230, the third bolts 450 are rotated forward so that the plurality of third bolts 450 are all in contact with the outer peripheral wall of the roller seat 230 to achieve locking. When it is necessary to adjust the relative position of the mounting seat 410 and the roller seat 230, one or more third bolts 450 can be rotated in the reverse direction to release the locking state.

[0057] Furthermore, when assembling the equipment, it is generally necessary to first rotatably connect the ink roller 200 to the shell; then install the nozzle holder 100, and adjust it along the first direction X and / or the second direction Y so that the center of the ink uniformity platform 110 of the nozzle holder 100 coincides with the axis of the ink roller 200, and the distance between the ink uniformity platform 110 and the peripheral side wall of the ink roller 200 meets the use requirements; then rotatably connect the ink uniformity roller to the shell, and an extrusion gap is formed between the peripheral side wall of the ink uniformity roller and the peripheral side wall of the ink roller 200; finally, by rotating the mounting seat 410, the nozzle holder 100 can be as close to the extrusion gap as possible, so that the spraying area exiting from the ink uniformity platform 110 can enter the extrusion gap formed between the ink uniformity roller and the ink roller 200 as soon as possible.

[0058] Optionally, a handle is detachably connected to the mounting base 410. The line connecting the handle and the axis of the roller shaft 210 forms an angle with the line connecting the nozzle holder 100 and the axis of the roller shaft 210. Specifically, in this embodiment, a socket for receiving the handle is provided on one axial end surface of the mounting base 410. During normal operation of the roll-to-roll forming machine, the socket is idle. To adjust the relative position of the nozzle holder 100 and the ink roller 200 by rotating the mounting base 410, the handle is inserted into the socket, and the operator rotates the mounting base 410 using the handle as the force point. The handle is convenient for the operator to hold, making rotation and adjustment of the mounting base 410 easier.

[0059] Furthermore, the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. Spraying device, characterized in that, include: The nozzle seat (100) is located on one radial side of the ink roller (200) and can be fixed relative to the axis of the ink roller (200). An ink uniformity platform (110) is provided on one side of the nozzle seat (100) adjacent to the ink roller (200). The ink uniformity platform (110) is in an arc shape and its center coincides with the axis of the ink roller (200). The ink uniformity platform (110) includes an access end (111) and an exit end (112). The access end (111) and the exit end (112) are respectively Located at the circumferential ends of the ink uniforming platform (110), one point of the circumferential side wall of the ink roller (200) can sequentially pass through the access end (111) and the exit end (112), the nozzle holder (100) is provided with an ink jet port (120) on the ink uniforming platform (110), the ink jet port (120) is adjacent to the access end (111) and is provided in a straight line along the axial direction of the ink uniforming platform (110), and the ink jet port (120) can spray ink onto the circumferential side wall of the ink roller (200) to form a spraying area; A blowing seat (300), wherein the blowing seat (300) is relatively fixed to the nozzle seat (100), the blowing seat (300) is adjacent to the exit end (112), and the blowing seat (300) is provided with a blowing port (310), the blowing port (310) discharges gas along the tangential direction of the ink roller (200), and the gas acts on the spraying area; The ink distribution platform (110) is arranged on one side of the nozzle holder (100) in a first direction (X), and the nozzle holder (100) includes a plurality of mounting blocks that are detachably connected in sequence along a second direction (Y), and the ink jet port (120) is formed between two adjacent mounting blocks in the second direction (Y); The first direction (X) is perpendicular to the second direction (Y); The nozzle holder (100) comprises a first mounting block (101), a second mounting block (102) and a third mounting block (103) connected in sequence along the second direction (Y); a main channel (150) and a branch channel (160) are provided in the second mounting block (102); the main channel (150) is opened along the first direction (X) and one end thereof forms an ink inlet (130) on the side facing away from the ink uniforming platform (110); the branch channel (160) is opened along the second direction (Y); the middle part of the branch channel (160) is connected to the other end of the main channel (150) and the axis of the main channel (150) is the mid-perpendicular line of the branch channel (160); and the two ends of the branch channel (160) form ink outlets (141) on the opposite end surfaces of the second mounting block (102).

2. The spraying device according to claim 1, characterized in that The nozzle holder (100) is provided with an ink inlet (130) and a plurality of ink ejection ports (120); the ink inlet (130) is located on a side opposite to the ink uniforming platform (110); the plurality of ink ejection ports (120) are arranged in sequence around the axis of the ink uniforming platform (110); and the plurality of ink ejection ports (120) are all connected to the ink inlet (130).

3. The spraying device according to claim 1, characterized in that The mounting block is provided with an ink outlet groove (140) on the end surface in the second direction (Y), and the ink outlet groove (140) includes two side walls, the two side walls are symmetrically arranged in the third direction (Z), and the two side walls are arranged at an angle, the intersection side of the angle forms an ink outlet (141) connected to the ink inlet (130), and the opening side of the angle forms the ink jet port (120) on the ink uniforming platform (110); The first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other.

4. Roll forming machine, characterized in that, The invention comprises a shell, the ink roller (200) and the spraying device according to claim 1, wherein the spraying device is fixed relative to the shell, the ink roller (200) comprises a roller shaft (210) and a roller (220), the roller (220) is sleeved on one axial end of the roller shaft (210) and is fixed relative to the roller shaft (210), the roller shaft (210) is rotatably connected to the shell, and the ink sprayed from the inkjet port (120) can be sprayed onto the outer peripheral wall of the roller (220).

5. The roll forming machine according to claim 4, characterized in that The ink roller (200) further includes a roller seat (230), wherein the roller seat (230) is fixedly connected to the shell, and the roller seat (230) is sleeved on the other axial end of the roller shaft (210) and rotates relative to the shell, and the nozzle seat (100) is connected to the roller seat (230) via a connecting frame, and the connecting frame includes a mounting seat (410) and a connecting rod (420), and the mounting seat (410) can be fixed to the roller seat (230), and the connecting rod (420) connects the mounting seat (410) and the nozzle seat (100), and the connecting rod (420) and the mounting seat (410) can move and be locked along the first direction (X), and the nozzle seat (100) and the connecting rod (420) can move and be locked along the second direction (Y).

6. The roll forming machine according to claim 5, characterized in that One of the connecting rod (420) and the mounting seat (410) is provided with a first waist-shaped hole along the first direction (X), and the connecting rod (420) and the mounting seat (410) are connected by a first bolt (430), and the first bolt (430) can slide in the first waist-shaped hole, and one of the nozzle seat (100) and the connecting rod (420) is provided with a second waist-shaped hole (421) along the second direction (Y), and the nozzle seat (100) and the connecting rod (420) are connected by a second bolt (440), and the second bolt (440) can slide relatively in the second waist-shaped hole (421).

7. The roll forming machine according to claim 5, characterized in that The mounting seat (410) is sleeved outside the roller seat (230), and the mounting seat (410) is connected to the roller seat (230) through a third bolt (450). A plurality of the third bolts (450) are provided and are evenly distributed around the axis of the roller shaft (210). The third bolts (450) are threadedly connected to the mounting seat (410), and the end of the third bolt (450) can abut against the outer peripheral wall of the roller seat (230) along the radial direction of the roller seat (230).

8. The roll forming machine according to claim 7, characterized in that The mounting seat (410) is detachably connected to a handle, and a line connecting the handle and the axis of the roller shaft (210) and a line connecting the nozzle seat (100) and the axis of the roller shaft (210) are arranged at an angle.

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