CN218112087U

CN218112087U - Adjustable shading structure for UV printing machine

Info

Publication number: CN218112087U
Application number: CN202222015930.7U
Authority: CN
Inventors: 叶文杰; 刘丹; 刘全喜
Original assignee: Wuhan Zhuoyuan Printing Co ltd
Current assignee: Wuhan Zhuoyuan Printing Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-12-23
Anticipated expiration: 2032-07-29

Abstract

The application discloses an adjustable light-shielding structure for UV printing machine relates to the printing field, and it is including setting up the mounting panel in the frame, be provided with the piece that hides that is used for sheltering from the oven opening on the mounting panel, still be provided with on the mounting panel and be used for adjusting the adjusting device of distance between piece and the stock hides. The ultraviolet ray lamp has the effect of reducing light pollution caused by overflow of ultraviolet rays.

Description

Adjustable shading structure for UV printing machine

Technical Field

The application relates to the field of printing, in particular to an adjustable shading structure for a UV printing machine.

Background

A printer is a machine that prints text and images. Modern printing presses typically consist of mechanisms for plating, inking, stamping, feeding (including folding), etc. The principle is that the characters or images to be printed are made into printing plate, then it is mounted on the printing machine, then the ink is coated on the position of the printing plate with characters and images by manual or printing machine, then it is directly or indirectly transferred onto paper or other printing material. To improve the printing image effect of the printing machine, the substrate after being coated with ink is often dried by using ultraviolet rays.

In the related art, chinese patent No. 200720057425.1 proposes a printing machine, which includes a frame, a printing material conveying device, a printing device, and an ultraviolet curing ink curing device, wherein the ultraviolet curing ink curing device includes a first group of ultraviolet curing lamps and a second group of ultraviolet curing lamps, and the printing device, the first group of ultraviolet curing lamps, and the second group of ultraviolet curing lamps are sequentially mounted on the frame. The first group of ultraviolet curing lamps comprise an ultraviolet curing lamp, a first oven is arranged on the rack, the bottom of the first oven is provided with an opening, and the first group of ultraviolet curing lamps are arranged in the first oven; the second group of ultraviolet curing lamps comprises three ultraviolet curing lamps, a second oven is arranged on the rack, the bottom of the second oven is provided with an opening, and the second group of ultraviolet curing lamps are arranged in the second oven.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the ultraviolet curing lamp is arranged in the oven, the bottom of the oven is provided with an opening for printed materials to pass through, so that the printed materials with different thickness sizes can pass through the opening at the bottom of the oven, and the height size of the opening at the bottom of the oven is not less than the maximum thickness size of the printed materials. If the thickness of the printing stock is small, ultraviolet rays overflow from a gap between the printing stock and an opening of the oven, so that the ultraviolet rays are lost and certain light pollution is generated.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that ultraviolet rays overflow from a gap between a printing stock and an opening of an oven to generate light pollution, the application provides an adjustable shading structure for a UV printing machine.

The application provides an adjustable light-shielding structure for UV printing machine adopts following technical scheme:

the utility model provides an adjustable light-shielding structure for UV printing machine, is including setting up the mounting panel in the frame, be provided with the light-shielding piece that is used for sheltering from the oven opening on the mounting panel, still be provided with on the mounting panel and be used for adjusting the adjusting device of distance between light-shielding piece and the stock.

Through adopting above-mentioned technical scheme, in the oven entered into through the oven opening, the shading piece passed through the installation grillage and established in the frame, and the shading piece is located the stock top to the part that has attached to printing ink on the stock for the shading piece can shelter from the opening of oven. When the thickness of stock is different, only need adjust the distance between light-shielding piece and the stock through adjusting device for the oven carries out printing ink drying to the stock of different thickness sizes, light-shielding piece shelters from the oven opening as far as possible under the combined action with the stock, thereby effectively reduces the ultraviolet ray and produces light pollution because of overflowing.

Optionally, the light-shielding member is set as a light-shielding cloth, the adjusting device includes an installation roller, an adjusting roller and a connection roller which are sequentially arranged on the installation plate at intervals in a direction away from the oven, the installation roller, the adjusting roller and the connection roller are all arranged along a direction perpendicular to the transport direction of the printing material, the installation roller and the connection roller are all fixedly installed on the installation plate, and the adjusting roller is arranged on the installation plate in a sliding manner in a direction close to/away from the rack;

one end of the shading cloth is fixedly connected with the connecting roller, the other end of the shading cloth is sequentially wound on the adjusting roller and the mounting roller, and a positioning assembly used for locking and positioning the adjusting roller is arranged on the mounting plate.

Through adopting above-mentioned technical scheme, the one end of shading cloth and connecting roller rigid coupling, the other end are in proper order around establishing adjusting roller and installation roller setting, and when the thickness size of stock diminishes, can order about the adjusting roller and move towards the direction of keeping away from the frame on the mounting panel, and the one end that the connecting roller was kept away from to shading cloth moved towards the direction that is close to the stock under the action of gravity this moment, has reduced the clearance between shading cloth and the stock. Finally, the adjusting roller is locked and positioned by using the positioning assembly, so that the shading cloth stably shades the opening of the oven as far as possible under the combined action of the shading cloth and the printing stock, and the light pollution caused by overflow of ultraviolet rays is effectively reduced.

Optionally, the locating component include with the screw rod and the threaded sleeve of the coaxial rigid coupling of dancer rools are established nut on the screw rod, run through on the mounting panel and seted up the confession the screw rod slides the groove of sliding of wearing to establish, the nut with the dancer rools end portion activity butt respectively is in on the both sides face of mounting panel.

Through adopting above-mentioned technical scheme, when the dancer rools slided on the mounting panel, the screw rod part of dancer rools tip wore to establish the mounting panel and slided in the groove that slides through the groove that slides. When the adjusting roller needs to be locked and positioned, the nut only needs to be rotated, the nut moves towards the direction close to the mounting plate under the driving of the screw threads of the screw rod, when the nut and the end part of the adjusting roller are respectively abutted against the two side faces of the mounting plate, the nut stops rotating, and the adjusting roller is quickly locked and positioned on the mounting plate under the combined action of the screw rod and the nut, so that the shading cloth stably shades the opening of the oven.

Optionally, an anti-slip structure is arranged between the mounting plate and the nut.

Through adopting above-mentioned technical scheme, the friction between nut and the mounting panel can be increased in the setting of anti-skidding structure for the regulating roller is stabilized the locking and is fixed a position on the mounting panel, thereby makes the shading cloth stably shelter from the opening of oven.

Optionally, a plurality of scale marks are arranged on the mounting plate, and the scale marks are arranged at intervals along the sliding direction of the adjusting roller.

Through adopting above-mentioned technical scheme, many scale marks set up along the direction interval of sliding of dancer rools for the staff can refer to the scale mark and remove the dancer rools to the assigned position fast, thereby has improved the governing speed to the dancer rools position.

Optionally, a plurality of clamping grooves are formed in the inner wall of the sliding groove and are arranged at intervals along the sliding direction of the adjusting roller, and clamping balls matched with the clamping grooves in a clamping mode are elastically connected to the circumferential wall of the cambered surface of the screw rod.

Through adopting above-mentioned technical scheme, when the position of adjusting roller, rotate the nut earlier for the nut no longer with the mounting panel butt, then rotate the screw rod, make the joint ball rotate to the inslot wall butt no longer with the groove that slides, can order about the screw rod fast this moment and slide at the inslot that slides, thereby reach the position of quick adjustment adjusting roller. After the adjusting of the position of the adjusting roller is completed, the screw rod is rotated, so that the clamping ball is rotated to be clamped with the clamping groove, and the adjusting roller is pre-positioned on the mounting plate under the interaction of the clamping ball and the clamping groove. And finally, the stable locking and positioning of the adjusting roller can be completed only by rotating the nut to enable the end parts of the nut and the adjusting roller to be respectively abutted against the two side surfaces of the mounting plate.

Optionally, the shading cloth is provided with air holes.

By adopting the technical scheme, when the printing ink on the printing stock is dried by the oven, the water in the printing ink is evaporated into the water vapor, the shading cloth shields the opening of the oven, and the air holes in the shading cloth are beneficial to the discharge of the water vapor in the oven, so that the drying efficiency of the oven on the printing stock is improved.

Optionally, a reflective layer is disposed on the light shielding cloth.

Through adopting above-mentioned technical scheme, the shading cloth shelters from the opening of oven, and the ultraviolet ray in the oven shines on the shading cloth through the opening of oven, and the reflection stratum on the shading cloth reflects this part's ultraviolet ray to the oven in this moment, not only can effectively reduce the ultraviolet ray and produce light pollution because of overflowing, can also realize the high-efficient utilization to ultraviolet ray simultaneously, and then reach the purpose that improves oven drying efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the thicknesses of the printing stocks are different, the distance between the shading piece and the printing stocks is only required to be adjusted through the adjusting device, so that when the drying oven is used for drying the printing stocks with different thicknesses and sizes, the shading piece shields the opening of the drying oven as much as possible under the combined action of the shading piece and the printing stocks, and the light pollution caused by overflow of ultraviolet rays is effectively reduced;

2. the plurality of scale marks are arranged at intervals along the sliding direction of the adjusting roller, so that a worker can quickly move the adjusting roller to a specified position by referring to the scale marks, and the adjusting speed of the position of the adjusting roller is increased;

3. the setting in joint ball and joint groove for can carry out prepositioning to the dancer roll at the in-process of carrying out position control to the dancer roll, make the dancer roll can be locked and fix a position on the mounting panel fast and stably.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a mounting plate, an adjusting device, a shading cloth, a positioning assembly, an anti-skid structure and scale marks in the embodiment of the application.

FIG. 3 is a schematic structural diagram of a mounting roller, an adjusting roller, a connecting roller, a positioning assembly, an anti-slip structure and scale marks in an embodiment of the application.

Fig. 4 is a schematic sectional structure view of the mounting plate, the adjusting roller and the screw in the embodiment of the present application.

Fig. 5 is a partially enlarged schematic view of a portion a in fig. 4.

Reference numerals are as follows: 1. a frame; 2. mounting a plate; 3. an oven; 4. an adjustment device; 41. mounting a roller; 42. a regulating roller; 43. a connecting roller; 5. a shade cloth; 6. a positioning assembly; 61. a screw; 62. a nut; 7. a sliding groove; 8. an anti-slip structure; 9. scale lines; 10. a clamping groove; 11. clamping the ball; 12. air holes are formed; 13. a feeding roller; 14. a blanking roller; 15. a counterweight roller; 16. a spring; 17. a printing device.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

Referring to fig. 1, the uv printer includes a frame 1 and a printing apparatus 17 disposed on the frame 1, a loading roller 13 is disposed on a front rotating frame of the frame 1, and a unloading roller 14 is disposed on a rear rotating frame of the frame 1. The frame 1 is also provided with an oven 3 with an ultraviolet lamp, the oven 3 is positioned at one side of the printing device 17 close to the blanking roller 14, and the bottom of the oven 3 is provided with an opening. The printing stock is wound on the feeding roller 13, and one end of the printing stock sequentially penetrates through the printing device 17 and the oven 3 to be wound on the discharging roller 14. The feeding roller 13 unreels the printing stock and the discharging roller 14 rolls the printing stock, so that the printing stock is stably transmitted on the rack 1. After the printing device 17 performs ink printing on the printed material, the printed material is transferred into the oven 3 for drying, so that the ink on the printed material is quickly cured.

The embodiment of the application discloses an adjustable shading structure for UV printing machine. Referring to fig. 1, the adjustable shading structure for the UV printing machine includes four mounting plates 2 arranged on a frame 1, the four mounting plates 2 are two by two in one group, and the two groups of mounting plates 2 are distributed on two sides of an oven 3 along the transmission direction of the printing material. Two mounting panels 2 of the same group are respectively aligned and arranged on two sides of a printing stock, and the mounting panels 2 are vertically arranged on the machine frame 1 through screws. Be provided with between two mounting panels 2 of the same group and be used for carrying out the shading piece that shelters from to oven 3 opening, still be provided with adjusting device 4 that is used for adjusting the distance between shading piece and the stock on the mounting panel 2.

Referring to fig. 2, the light-shielding member is set as a light-shielding cloth 5, a reflective layer is coated on the light-shielding cloth 5, the reflective layer is set as a nano titanium dioxide fiber mirror reflective coating, the light-shielding cloth 5 is hung between two mounting plates 2 in the same group, and the light-shielding cloth 5 can shield an opening of the oven 3. Ultraviolet rays in the oven 3 irradiate on the shading cloth 5 through an opening of the oven 3, and at the moment, the reflection layer on the shading cloth 5 reflects the ultraviolet rays to the oven 3, so that the light pollution caused by the overflow of the ultraviolet rays can be effectively reduced, the efficient utilization of the ultraviolet rays can be realized, and the aim of improving the drying efficiency of the oven 3 is fulfilled.

In order to further improve the drying efficiency of the oven 3, referring to fig. 2, a plurality of air holes 12 are formed in the light-shielding cloth 5, and the plurality of air holes 12 are uniformly distributed in the light-shielding cloth 5. When the shading cloth 5 shields the opening of the oven 3, water vapor in the oven 3 can be quickly discharged through the air holes 12, so that the drying efficiency of the oven 3 on printing ink on a printing stock is further improved.

Referring to fig. 2 and 3, a sliding groove 7 is formed in the mounting plate 2 in a penetrating manner, and the sliding groove 7 is vertically arranged. The adjusting device 4 comprises a mounting roller 41, an adjusting roller 42 and a connecting roller 43 which are arranged between two mounting plates 2 in the same group, and the mounting roller 41, the adjusting roller 42 and the connecting roller 43 are all arranged along the vertical printing material conveying direction. The installation roller 41 is located on one side of the sliding groove 7 close to the oven 3, the connection roller 43 is located on one side of the sliding groove 7 far from the oven 3, and the installation roller 41 and the connection roller 43 are both fixedly installed at one end of the installation plate 2 far from the rack 1. The adjusting roller 42 is connected on the mounting plate 2 in a sliding manner through the sliding groove 7, and the two ends of the adjusting roller 42 are respectively in sliding abutting connection with the two mounting plates 2 in the same group. One end of the shading cloth 5 is fixedly bonded with the connecting roller 43, the other end is sequentially wound on the adjusting roller 42 and the mounting roller 41, and the counterweight roller 15 is bonded at one end of the shading cloth 5 far away from the connecting roller 43. The shade cloth 5 drops on the frame 1 under the action of the weight roller 15, and the weight roller 15 is disposed such that the shade cloth 5 is wound around the adjustment roller 42 and the installation roller 41 in tension.

When the thickness of the printing stock is reduced, the adjusting roller 42 can be driven to move towards the direction far away from the rack 1 on the mounting plate 2, and at the moment, one end of the shading cloth 5 far away from the connecting roller 43 moves towards the direction close to the printing stock under the action of gravity of the counterweight roller 15, so that the gap between the shading cloth 5 and the printing stock is reduced, the opening of the oven 3 is stably shielded as far as possible under the combined action of the shading cloth 5 and the printing stock, and the light pollution caused by overflow of ultraviolet rays is effectively reduced.

When printing production is switched to printing stocks with different thickness sizes, the position of the adjusting roller 42 on the mounting plate 2 needs to be adjusted, and in order to quickly adjust and position the adjusting roller 42 on the mounting plate 2, referring to fig. 3 and 4, a graduated scale is adhered on the mounting plate 2 and is positioned on the side surface of two mounting plates 2 in the same group, which are deviated from each other. The graduated scale is provided with a plurality of scale marks 9, and the scale marks 9 are arranged at intervals along the length direction of the sliding groove 7. The adjusting roller 42 can be quickly adjusted to a proper position on the mounting plate 2 by observing the scale marks 9 on the scale to drive the adjusting roller 42 to slide along the length direction of the sliding groove 7.

In order to realize the quick locking and positioning of the adjusting roller 42 on the mounting plate 2, referring to fig. 3 and 4, the mounting plate 2 is provided with a positioning assembly 6 for locking and positioning the adjusting roller 42, and the positioning assembly 6 comprises a screw rod 61 coaxially fixedly connected with the adjusting roller 42 and a nut 62 sleeved on the screw rod 61 through a thread. The adjusting roller 42 is arranged in a hollow mode, the screw rod 61 coaxially penetrates through the adjusting roller 42 and is fixedly connected with the adjusting roller 42 through a screw, and the part, extending out of the adjusting roller 42, of the screw rod 61 penetrates through the mounting plate 2 through the sliding groove 7. The nut 62 is located on the side of the mounting plate 2 away from the adjusting roller 42, and when the adjusting roller 42 needs to be locked on the mounting plate 2, the nut 62 only needs to be driven to rotate relative to the screw 61, and the nut 62 moves towards the direction close to the mounting plate 2 under the driving of the thread of the screw 61. When the end parts of the nut 62 and the adjusting roller 42 are respectively abutted against two side surfaces of the mounting plate 2, the nut 62 stops rotating, and at the moment, the adjusting roller 42 is quickly locked and positioned on the mounting plate 2 under the combined action of the screw 61 and the nut 62, so that the opening of the oven 3 is stably shielded by the shading cloth 5.

In order to improve the stability of the installation of the adjusting roller 42, referring to fig. 3 and 4, an anti-slip structure 8 is arranged between the mounting plate 2 and the nut 62, the anti-slip structure 8 may be a frosted layer arranged on the mounting plate 2 or a damping strip adhered on the mounting plate 2, and in the embodiment of the present application, the anti-slip structure 8 is arranged as a damping strip. Two damping strips are correspondingly bonded on each mounting plate 2, the two damping strips are bonded on the side face, close to the nut 62, of each mounting plate 2, the two damping strips are located on two sides of the sliding groove 7 respectively, and the length direction of each damping strip is consistent with that of the sliding groove 7. The nut 62 is pressed against the mounting plate 2 by the damping strip, so that the mounting of the adjusting roller 42 is more stable.

Because when locking the location to dancer roll 42, need stabilize the lift to dancer roll 42, this mounting means inefficiency, for further improvement to dancer roll 42's locking location efficiency, refer to fig. 4 and fig. 5, all correspond on the inslot wall of 7 both sides in the groove of sliding and seted up a plurality of joint grooves 10, a plurality of joint grooves 10 set up along dancer roll 42's slip direction interval. Two mounting grooves are formed in the circumferential wall of the cambered surface at the two ends of the screw rod 61 and distributed along the radial direction of the screw rod 61. Be provided with spring 16 in the mounting groove, spring 16 sets up along the radial direction of screw rod 61 is flexible, and spring 16's one end and mounting groove inner wall rigid coupling, other end rigid coupling have joint ball 11, and joint ball 11 slides and sets up in the mounting groove, and joint ball 11 and joint groove 10 joint adaptation. When the spring 16 is at the original length, the snap ball 11 is arranged at the driven part of the spring 16 to extend out of the mounting groove.

The implementation principle of the adjustable shading structure for the UV printing machine is as follows: the position of the regulating roller 42 on the mounting plate 2 is adjusted in dependence on the thickness of the printing material before starting the printing press. When adjusting the position of adjusting roller 42, rotate nut 62 earlier for nut 62 no longer with mounting panel 2 butt, then rotate screw rod 61, make joint ball 11 rotate to no longer with the inslot wall butt of sliding groove 7, can order about screw rod 61 to slide in sliding groove 7 fast this moment, and adjust adjusting roller 42 to suitable position according to scale mark 9 on mounting panel 2. After the position of the adjusting roller 42 is adjusted, the screw rod 61 is rotated, so that the clamping ball 11 is rotated to be clamped with the clamping groove 10, and the adjusting roller 42 is pre-positioned on the mounting plate 2 under the interaction of the clamping ball 11 and the clamping groove 10.

Then, only the nut 62 needs to be rotated, so that the end parts of the nut 62 and the adjusting roller 42 respectively abut against the two side surfaces of the mounting plate 2, and the stable locking and positioning of the adjusting roller 42 can be completed. At the moment, the shading cloth 5 drops on the frame 1 under the action of the counterweight roller 15, and the counterweight roller 15 is arranged to enable the shading cloth 5 to be tensioned and wound on the adjusting roller 42 and the mounting roller 41, so that the shading cloth 5 stably shields the opening of the oven 3 as much as possible under the combined action of the shading cloth 5 and a printing stock, and further, the light pollution caused by overflow of ultraviolet rays is effectively reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An adjustable light-shielding structure for a UV printer, characterized in that: the drying oven is characterized by comprising a mounting plate (2) arranged on a rack (1), wherein a shading piece used for shading an opening of an oven (3) is arranged on the mounting plate (2), and an adjusting device (4) used for adjusting the distance between the shading piece and a printing stock is further arranged on the mounting plate (2).

2. The adjustable shading structure for a UV printer according to claim 1, characterized in that: the shading piece is arranged as shading cloth (5), the adjusting device (4) comprises an installation roller (41), an adjusting roller (42) and a connecting roller (43) which are sequentially arranged on the installation plate (2) at intervals towards the direction far away from the oven (3), the installation roller (41), the adjusting roller (42) and the connecting roller (43) are all arranged along the direction vertical to the transmission direction of the printing stock, the installation roller (41) and the connecting roller (43) are all fixedly arranged on the installation plate (2), and the adjusting roller (42) is arranged on the installation plate (2) in a sliding manner towards the direction close to or far away from the rack (1);

one end of shading cloth (5) with connecting roller (43) rigid coupling, the other end are in proper order around establishing adjusting roller (42) with installation roller (41) set up, be provided with on mounting panel (2) be used for right adjusting roller (42) carry out locking positioning's locating component (6).

3. The adjustable shading structure for a UV printer according to claim 2, characterized in that: locating component (6) include with screw rod (61) and the thread bush of the coaxial rigid coupling of dancer (42) are established nut (62) on screw rod (61), run through on mounting panel (2) and seted up the confession screw rod (61) slide groove (7) of sliding and wearing to establish, nut (62) with dancer (42) tip activity butt respectively is in on the both sides face of mounting panel (2).

4. The adjustable shade structure for UV printers of claim 3, wherein: an anti-skid structure (8) is arranged between the mounting plate (2) and the nut (62).

5. The adjustable shading structure for a UV printer according to claim 2, characterized in that: be provided with many scale marks (9) on mounting panel (2), many scale mark (9) are followed the slip direction interval of dancer (42) sets up.

6. The adjustable shade structure for UV printers of claim 3, wherein: seted up a plurality of joint grooves (10) on the inslot wall in groove (7) that slides, it is a plurality of joint groove (10) are followed the direction of sliding interval of adjusting roller (42) sets up, on screw rod (61) cambered surface perisporium elastic connection have with joint ball (11) of joint groove (10) joint adaptation.

7. The adjustable shading structure for a UV printer according to claim 2, characterized in that: the shading cloth (5) is provided with air holes (12).

8. The adjustable shading structure for a UV printer according to claim 2, characterized in that: and a reflecting layer is arranged on the shading cloth (5).