Printing device for adjusting rotation of ink fountain roller to improve ink absorption of printed matter

Abstract

The present application relates to the technical field of printing, in particular to a printing device capable of adjusting the rotation of ink duct roller to improve ink adsorption of printed matter, comprising a driving frame, a side sealing plate fixedly installed on the driving frame, a rotating groove arranged on the side sealing plate, a roller surface fixedly installed on the side sealing plate, a main terminal movably connected in the rotating groove, a driving motor fixedly installed in the main terminal, a driving gear connected with the motor shaft of the driving motor through a transmission device, a gear ring meshingly installed on the driving gear, a supporting gear meshingly arranged in the gear ring, and a push block fixedly installed on the gear ring; before formal printing, the printing plate and printing content are investigated, and the position of the speed reduction disc is adjusted according to the printing time point, which is equivalent to programming, so that the roller surface can be adjusted in speed according to the set order, and the printing quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the printing technical field, specifically to a printing device for adjusting rotation of an ink fountain roller to improve ink adsorption of printed matter. BACKGROUND

[0002] Printing is a technology of copying the content of original documents such as text, pictures, photos, and anti-fake on paper, textiles, plastic products, leather, PVC, PC, and other material surfaces in batches through processes such as plate making, ink application, and pressure application. Printing has great significance in the promotion of human civilization. With the development of printing machines and other equipment, the printing speed has become faster and faster.

[0003] The ink delivery device, as an important mechanism of the printing machine, determines the quality of the printed matter together with the other three printing elements (printing plate, original document, and printing material). The ink fountain roller is an important component of the ink delivery device, which can carry ink out of the ink fountain to be delivered to the ink string roller.

[0004] However, the ink output of the ink fountain roller on the printing machine is generally manually adjusted, and the ink thickness of the ink fountain roller cannot be strictly segmented and quantitatively adjusted as needed. Since the pattern and color change in printing, the demand for ink changes constantly, and the real-time ink output of the ink fountain roller is inconsistent with the needs in printing. The current ink fountain roller cannot strictly adjust the ink adsorption thickness in time, which affects the efficiency and quality of printing. In view of this, the present application provides a printing device for adjusting rotation of an ink fountain roller to improve ink adsorption of printed matter. SUMMARY

[0005] The present application aims to provide a printing device for adjusting rotation of an ink fountain roller to improve ink adsorption of printed matter to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a printing device for adjusting rotation of an ink fountain roller to improve ink adsorption of printed matter, comprising a driving frame, a side sealing plate fixedly installed on the driving frame, a rotation groove provided on the side sealing plate, a roller surface fixedly installed on the side sealing plate, a main terminal movably connected in the rotation groove, a driving motor fixedly installed in the main terminal, a driving gear connected to the motor shaft of the driving motor through a transmission device, a gear ring meshingly installed on the driving gear, a supporting gear meshingly installed in the gear ring, a push block fixedly installed on the gear ring, and gear shafts of the driving gear and the supporting gear rotatably installed on a support, wherein an end cover is fixedly installed on the support.

[0007] The guide plate is fixedly connected between the main terminal and the end cover, a center groove is arranged on the guide plate, a side groove is communicated with the center groove, a sliding block is slidably connected in the center groove, a top plate is fixedly installed on the sliding block, a limiting block is fixedly installed on the sliding block, a limiting magnet is fixedly installed on the limiting block, a fixed magnet is fixedly installed in the side groove, an adjusting stud is threadedly connected on the sliding block, an adjusting block is fixedly installed on the adjusting stud, a speed reduction disc is fixedly installed on the adjusting stud, and a friction increasing pad is fixedly installed on the roller surface.

[0008] Preferably, the transmission device comprises a driving bevel gear, the driving bevel gear is engaged with a driven bevel gear, the driven bevel gear is coaxially installed with a belt pulley, and the belt pulley is connected with a driving gear through a V-belt.

[0009] Preferably, the rotating groove is an annular through groove, the side sealing plates are divided into two, the driving frame comprises a center shaft penetrating the roller surface and a connecting rod installed thereon, and the side sealing plates are provided in two, the roller surface is in a cylindrical shape and is installed between the two side sealing plates, and the driving frame is driven by a motor on the printing machine.

[0010] Preferably, the main terminal and the end cover are inserted into the roller surface through the rotating groove, and the main terminal and the end cover are both provided with a fixing piece, the fixing piece is connected to the rack of the printing machine, and the driving motor is installed in the cavity of the main terminal.

[0011] Preferably, a plurality of support gears are provided, the gear ring is provided with internal teeth, and the driving gear and the support gear are sleeved on the gear ring, and the two push blocks are equidistantly installed on the gear ring.

[0012] Preferably, the side grooves are arranged on both sides of the center groove, and the side grooves and the center grooves are arranged in multiple groups on the guide plate, the limiting block is slidably connected in the side groove, and the top plate is provided with rounded corners on both sides.

[0013] Preferably, the speed reduction disc is installed at the top of the adjusting stud, the adjusting block is installed at the middle of the adjusting stud, the sliding block is provided with a distance scale, and the friction increasing pad is bonded with a plurality of strips on the inner wall of the roller surface.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1. The ink fountain roller for ink adsorption is arranged as a hollow roller, and a main terminal with a driving motor is inserted in the roller surface, a mechanism for roller surface speed adjustment is connected to the main terminal, the height of the speed reduction disc can be adjusted by rotating the adjusting stud, a plurality of speed reduction discs with different heights are arranged, a gear ring can be driven to rotate through the transmission device, the push block installed on the gear ring pushes the speed reduction disc upwards and contacts the friction pad on the roller surface to generate friction force for speed reduction of the roller surface, and the friction force generated by each speed reduction disc is different, so that the roller surface speed changes according to the preset rule, when the speed is high, the amount of adsorbed ink is small, when the speed is low, the amount of adsorbed ink is large, and in a work section of the push block movement, the speed of the roller surface can be automatically adjusted according to the demand of the amount of ink to carry out high-quality printing.

[0016] 2. Before formal printing, the printing plate and the printing content are observed, the approximate ink demand change in the printing process is calculated according to the change of patterns and characters, and the position of the speed reduction disc is adjusted according to the printing time point, which is equivalent to "programming", so that the roller surface can be adjusted in speed according to the set sequence to improve the printing quality. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a sectional view of the ink fountain roller structure of the present application.

[0018] Figure 2 It is Figure 1 the enlarged schematic view of area A in the middle;

[0019] Figure 3 It is Figure 1 the enlarged schematic view of area B in the middle.

[0020] In the figure: driving frame 1, side sealing plate 2, rotating groove 3, roller surface 4, main terminal 5, driving motor 6, driving bevel gear 7, driven bevel gear 8, V-belt pair 9, driving gear 10, gear ring 11, support gear 12, push block 13, support 14, end cover 15, guide plate 16, center groove 17, side groove 18, sliding block 19, top plate 20, limit block 21, limit magnet 22, fixed magnet 23, adjusting stud 24, adjusting block 25, speed reduction disc 26, friction pad 27. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] Please refer to Figures 1 to 3The application provides a technical scheme: a printing device for adjusting the rotation of an ink fountain roller to improve the ink adsorption of printed matters, which comprises a driving frame 1, a side sealing plate 2 fixedly installed on the driving frame 1, a rotating groove 3 arranged on the side sealing plate 2, a roller surface 4 fixedly installed on the side sealing plate 2, a main terminal 5 movably connected in the rotating groove 3, a driving motor 6 fixedly installed in the main terminal 5, a driving gear 10 connected with a motor shaft of the driving motor 6 through a transmission device, a gear ring 11 meshingly installed on the driving gear 10, a supporting gear 12 meshingly arranged in the gear ring 11, a push block 13 fixedly installed on the gear ring 11, and gear shafts of the driving gear 10 and the supporting gear 12 rotatably installed on a support 14, and an end cover 15 fixedly installed on the support 14.

[0023] A guide plate 16 is fixedly connected between the main terminal 5 and the end cover 15, a central groove 17 is arranged on the guide plate 16, the central groove 17 is communicated with a side groove 18, a sliding block 19 is slidably connected in the central groove 17, a top plate 20 is fixedly installed on the sliding block 19, a limiting block 21 is fixedly installed on the sliding block 19, a limiting magnet 22 is fixedly installed on the limiting block 21, a fixed magnet 23 is fixedly installed in the side groove 18, an adjusting stud 24 is threadedly connected on the sliding block 19, an adjusting block 25 is fixedly installed on the adjusting stud 24, a speed reduction disc 26 is fixedly installed on the adjusting stud 24, and a friction increasing pad 27 is fixedly installed on the roller surface 4.

[0024] The transmission device comprises a driving bevel gear 7, the driving bevel gear 7 is meshingly installed with a driven bevel gear 8, the driven bevel gear 8 is coaxially installed with a belt pulley, the driving gear 10 is connected with a V-belt pair 9, and the direction of the torque generated by the driving motor 6 can be changed through the cooperation of the driving bevel gear 7 and the driven bevel gear 8, and the driving gear 10 is driven to rotate through the V-belt pair 9.

[0025] The rotating groove 3 is an annular through groove, the side sealing plate 2 is divided into two parts, the driving frame 1 comprises a central shaft penetrating through the roller surface 4 and a connecting rod installed thereon, the side sealing plate 2 is provided with two parts, the roller surface 4 is in a cylindrical shape and is installed between the two side sealing plates 2, the driving frame 1 is driven by a motor on a printing machine, and when printing, the driving frame 1 drives the side sealing plate 2 to rotate, thereby driving the roller surface 4 to continuously rotate slowly, ink is adsorbed from the ink fountain and is transferred to a printing plate;

[0026] The main terminal 5 and the end cover 15 are inserted into the roller surface 4 through the rotating groove 3, the main terminal 5 and the end cover 15 are both installed with a fixing piece, and the fixing piece is connected to a rack of the printing machine, the driving motor 6 is installed in a cavity of the main terminal 5, the main terminal 5 is fixed during the rotation of the roller surface 4 and the side sealing plate 2, thereby sliding in the rotating groove 3, and the driving motor 6 in the main terminal 5 drives the transmission device;

[0027] The support gears 12 are provided in plurality, and the gear ring 11 is provided with internal teeth, sleeved on the driving gear 10 and the support gears 12, two of the push blocks 13 are equidistantly installed on the gear ring 11, when the driving gear 10 rotates, it can drive the gear ring 11 to rotate cyclically and reciprocally, thereby driving the push blocks 13 to move, the push blocks 13 can contact the top plates 20 arranged and installed one by one, thereby making the sliding blocks 19 move upwards, and the two push blocks 13 can work alternately, having continuity;

[0028] The side grooves 18 are arranged on both sides of the central groove 17, and the side grooves 18 and the central groove 17 are arranged in plurality of groups on the guide plate 16, the limiting blocks 21 are slidingly connected in the side grooves 18, and the top plates 20 are provided with rounded corners on both sides, when the push blocks 13 move to the bottom of the top plates 20, they can be lifted thereon, thereby making the sliding blocks 19 slide upwards in the central groove 17, and the limiting blocks 21 slide upwards in the side grooves 18, and the same-polarity magnetic poles of the limiting magnets 22 and the fixed magnets 23 are opposite, having repulsion, when the push blocks 13 pass through the bottom of the top plates 20, the repulsion makes the sliding blocks 19 reset;

[0029] The speed reduction disc 26 is installed on the top of the adjusting stud 24, and the adjusting block 25 is installed on the middle part of the adjusting stud 24, the sliding block 19 is provided with a distance scale, and the friction increasing pad 27 is bonded with a plurality of strips on the inner wall of the roller surface 4, before printing, the approximate ink demand change can be calculated according to the change of the printing plate pattern, thereby adjusting the position of the speed reduction disc 26, according to a complete printing process, the push block 13 passes through the bottom of the top plate 20 arranged in the first position, and the speed reduction disc 26 is pressed onto the friction increasing pad 27, the friction force generated can block the rotation of the roller surface 4, thereby changing the rotation speed, and the size of the friction force is positively correlated with the pressure between the speed reduction disc 26 and the friction increasing pad 27, so at the time point when the ink demand is large, the position of the speed reduction disc 26 is adjusted upwards, the push block 13 presses the speed reduction disc 26 tightly on the friction increasing pad 27 to reduce the speed, so that the roller surface 4 absorbs more ink, on the contrary, at the stage when the ink demand is small, the push block 13 passes through the bottom of the top plate 20 with a lower position of the speed reduction disc 26, the friction force generated is small, the rotation speed of the roller surface is fast, and the ink absorbed is less, so in one work section of the push block 13, the speed of the roller surface can be automatically adjusted according to the ink demand;

[0030] Working principle: first, before printing, the printing plate and the printing content are evaluated and calculated, according to the change of pattern and text, the approximate ink demand change in the printing process is calculated, and then the position of the plurality of speed reduction discs 26 on the guide plate 16 is adjusted, from the first speed reduction disc, at the time point of large ink demand, the speed reduction disc 26 on the adjusting screw 24 is moved up by rotating the adjusting block 25, at the time point of small ink demand, the speed reduction disc 26 on the adjusting screw 24 is moved down by rotating the adjusting block 25, after adjusting the position of the speed reduction disc 26 according to the printing time point, the guide plate 16 and other structures connected to it are inserted into the roller surface 4 through the main terminal 5, and the main terminal 5 and the end cover 15 are fixed on the rack of the printing machine, and then printing is carried out; the roller surface 4 is continuously and slowly rotated by driving the side sealing plate 2 to rotate through the driving frame 1, so that the ink is adsorbed from the ink fountain and transferred to the printing plate, and the main terminal 5 is fixed, so that it slides in the rotating groove 3, and the driving motor 6 in the main terminal 5 drives the transmission device, the torque direction generated by the driving motor 6 can be changed through the cooperation of the driving bevel gear 7 and the driven bevel gear 8, and the driving gear 10 is driven to rotate through the V-belt pair 9, when the driving gear 10 rotates, the gear ring 11 can rotate back and forth, so as to drive the push block 13 to move, in one printing section, the push block 13 starts from the bottom of the top plate 20 arranged in the first position, passes through one by one, so that the sliding block 19 slides up in the center groove 17, the limiting block 21 slides up in the side groove 18, the speed reduction disc 26 installed on the adjusting screw 24 on the sliding block 19 moves up and contacts the friction increasing pad 27, the friction force generated can block the rotation of the roller surface 4, so as to change its speed, and the size of the friction force is positively related to the pressure between the speed reduction disc 26 and the friction increasing pad 27, so at the time point of large ink demand, the position of the speed reduction disc 26 is higher, the push block 13 presses the speed reduction disc 26 on the friction increasing pad 27 to reduce the speed, so that the roller surface 4 adsorbs more ink, on the contrary, at the stage of small ink demand, the push block 13 passes through the bottom of the top plate 20 with low position of the speed reduction disc 26, the friction force is small, the roller surface rotates fast, and the adsorbed ink is less, and after the push block 13 passes through, the repulsion force generated by the limiting magnet 22 and the fixed magnet 23 can reset the top plate 20 for the next movement, so in one section of the push block 13 movement, the roller surface can be automatically adjusted according to the pre-set ink demand, and the two push blocks 13 work alternately and continuously to carry out high quality printing.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A printing device for regulating the rotation of a fountain roller to improve ink absorption of a printed product, comprising a driving frame (1), characterized in that: The driving frame (1) is fixedly installed with a side sealing plate (2), and the side sealing plate (2) is provided with a rotating groove (3); the side sealing plate (2) is fixedly installed with a roll surface (4), and the rotating groove (3) is movably connected with a main terminal (5); the main terminal (5) is fixedly installed with a driving motor (6), and the motor shaft of the driving motor (6) is connected with a driving gear (10) through a transmission device; the driving gear (10) is meshingly installed with a gear ring (11), and the gear ring (11) is meshed with a supporting gear (12); the gear ring (11) is fixedly installed with a push block (13), and the gear shafts of the driving gear (10) and the supporting gear (12) are rotatably installed on a support (14); and the support (14) is fixedly installed with an end cover (15). The main terminal (5) and the end cover (15) are fixedly connected with a guide plate (16), and the guide plate (16) is provided with a central groove (17) which is communicated with a side groove (18); the central groove (17) is slidably connected with a sliding block (19), and the sliding block (19) is fixedly installed with a top plate (20); the sliding block (19) is fixedly installed with a limiting block (21), and the limiting block (21) is fixedly installed with a limiting magnet (22); the side groove (18) is fixedly installed with a fixed magnet (23), and the same-polarity magnetic poles of the limiting magnet (22) and the fixed magnet (23) face each other; the sliding block (19) is threadedly connected with an adjusting stud (24), and the adjusting stud (24) is fixedly installed with an adjusting block (25); the adjusting stud (24) is fixedly installed with a speed-reducing disc (26), and the roll surface (4) is fixedly installed with a friction-increasing pad (27). From the first speed-reducing disc, at the time point when the ink amount demand is large, the adjusting stud (24) is rotated by the adjusting block (25) to drive the speed-reducing disc (26) on the adjusting stud (24) to move upward, and at the time point when the ink amount demand is small, the adjusting stud (24) is rotated by the adjusting block (25) to drive the speed-reducing disc (26) on the adjusting stud (24) to move downward.

2. The printing device of claim 1, wherein the rotation of the roller is adjusted to improve ink absorption of the printed matter. The transmission device comprises a driving bevel gear (7) which is meshingly installed with a driven bevel gear (8), and the driven bevel gear (8) is coaxially installed with a belt pulley; the driving gear (10) is connected through a V-belt pair (9).

3. The printing device of claim 1, wherein the rotation of the roller is adjusted to improve ink absorption of the printed matter. The rotating groove (3) is an annular through groove, and the side sealing plate (2) is divided into two pieces; the driving frame (1) comprises a central shaft penetrating through the roll surface (4) and a connecting rod installed thereon, and the side sealing plate (2) is provided with two pieces; the roll surface (4) is cylindrical and is installed between the two pieces of side sealing plate (2); and the driving frame (1) is driven by a motor on a printing machine.

4. The printing device of claim 1, wherein the printing device is characterized by: The main terminal (5) and the end cover (15) are inserted into the roll surface (4) through the rotating groove (3), and the main terminal (5) and the end cover (15) are both installed with a fixing piece which is connected to the rack of the printing machine; and the driving motor (6) is installed in the cavity of the main terminal (5).

5. The printing device of claim 1, wherein the printing device is characterized by: The support gear (12) is provided with multiple, and the gear ring (11) is provided with internal teeth, sleeved on the driving gear (10) and the support gear (12), and the push block (13) is equidistantly provided with two on the gear ring (11).

6. The printing device of claim 1, wherein the printing device is characterized by: The side groove (18) is arranged on the two sides of the center groove (17), and the side groove (18) and the center groove (17) are arranged in multiple groups on the guide plate (16), the limiting block (21) is slidably connected in the side groove (18), and the top plate (20) is provided with a round corner on both sides.

7. The printing device of claim 1, wherein the printing device is characterized by: The speed reduction disc (26) is installed on the top of the adjusting stud (24), the adjusting block (25) is installed on the middle part of the adjusting stud (24), the sliding block (19) is provided with a distance scale, and the friction increasing pad (27) is bonded with multiple on the inner wall of the roller surface (4).

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