CN111572212A - Floating roller mechanism, digital label printing machine and installation method - Google Patents
Floating roller mechanism, digital label printing machine and installation method Download PDFInfo
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- CN111572212A CN111572212A CN202010518561.6A CN202010518561A CN111572212A CN 111572212 A CN111572212 A CN 111572212A CN 202010518561 A CN202010518561 A CN 202010518561A CN 111572212 A CN111572212 A CN 111572212A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4075—Tape printers; Label printers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
Abstract
The invention is suitable for the field of floating rollers, and provides a floating roller mechanism, a digital label printing machine and an installation method. The technical problems that most of traditional narrow-width digital printing machines are printed by single sheets, the production speed is low, and the paper is single-sheet and is not suitable for industrial label production are solved.
Description
Technical Field
The invention belongs to the field of floating rollers, and particularly relates to a floating roller mechanism, a digital label printing machine and an installation method.
Background
Under the current market environment, more and more label customers' demand slowly turns to the individualized printing label of small batch volume, if use traditional offset printing, the flexo press prints, then the cost can very big increase, and because offset printing, the characteristics of flexo printing technique cause inefficiency, consequently needs digital printing machine to solve this problem. Most of the traditional narrow-width digital printing machines are printed by single sheets, the production speed is low, and the paper is single-sheet and is not suitable for industrialized label production.
Disclosure of Invention
The invention aims to provide a floating roller mechanism, a digital label printing machine and an installation method, and aims to solve the technical problems that most of traditional narrow-width digital printing machines are printed by single sheets, the production speed is low, and paper is not suitable for industrial label production because the paper is single-sheet.
The invention is realized in such a way that the floating roller mechanism comprises a mounting flange which is fixedly arranged on a wallboard and penetrates through the wallboard and is provided with a connecting shaft, a first lever which is arranged on the outer side of the wallboard and is fixedly connected with one end of the connecting shaft of the mounting flange, a counterweight balance block which is arranged at one end of the first lever and is used for playing a balance role, a displacement sensor which is movably arranged on the outer side of the wallboard and has a movable end which is movably connected with the other end of the first lever and is used for measuring a displacement distance, a second lever which is arranged on the inner side of the wallboard and has one end which is fixedly connected with the other end of the connecting shaft of the mounting flange, a floating roller which is arranged at the other end of the second lever and is used for tensioning paper, and an air cylinder which is movably arranged on the inner side of.
The further technical scheme of the invention is as follows: the first lever and the second lever are on the same horizontal plane.
The further technical scheme of the invention is as follows: the displacement sensor is a linear displacement sensor.
The further technical scheme of the invention is as follows: the floating roller is an adjustable eccentric floating roller.
The further technical scheme of the invention is as follows: the cylinder is a low friction cylinder.
The invention also provides a digital label printing machine, which further comprises a digital printer, an unreeling mechanism arranged on one side of the digital printer and provided with a deviation correcting unit and a first traction roller unit, and a reeling mechanism arranged on the other side of the digital printer and provided with a second traction roller unit, wherein the number of the floating roller mechanisms is two, and the two floating roller mechanisms are respectively arranged on the unreeling mechanism and the reeling mechanism.
Another object of the present invention is to provide a method for mounting a dancer mechanism of a digital label printer, the method comprising the steps of:
step S1: mounting the mounting flange on the wall plate according to mounting requirements, mounting the first lever and the second lever on a connecting shaft of the mounting flange, and analyzing various acting forces according to the stress conditions of the first lever and the second lever;
step S2: installing a balance weight, a displacement sensor, a floating roller and a cylinder on a first lever and a second lever according to various acting forces;
step S3: finally, the floating roller mechanism is in balance so as to control the tension of the paper.
The further technical scheme of the invention is as follows: the step S1 further includes the steps of:
step S11: analyzing the force acting on the first lever, namely the gravity of the counterweight balance block, and recording the force as G2, and the friction force of the displacement sensor per se as F2;
step S12: the force acting on the second lever was analyzed as the force exerted by the paper on the dancer roll, denoted F1, and a value of twice the paper tension, which was determined according to the digital printer, the gravity of the dancer roll itself, denoted G1, and the force exerted by the air cylinder on the second lever, denoted F3.
The further technical scheme of the invention is as follows: the step S2 further includes the steps of:
step S21: taking the connecting shaft of the mounting flange as a fulcrum, which is marked as O, the G2 acting force of the counterweight balance block needs to act on a point E of the first lever, the point E is the mounting position of the counterweight balance block, the F2 acting force of the displacement sensor needs to act on a point B of the first lever, and the point B is the movable fixed position of the displacement sensor;
step S22: according to the F1 acting force of the floating roller, the point A is required to act on the point A of the second lever, the mounting position of the floating roller is determined according to the position of the second lever acted by the cylinder with different cylinder diameters, the movable fixing position is determined, the mounting position is marked as D, the larger the cylinder diameter is, the larger the output force is, the closer the point D is to the point O, and the closer the point D is to the point A, otherwise, the closer the point D is to the point A, but the requirements of F1 multiplied by L2= F3 multiplied by L1, L2 is the distance from the point A to the point O, and L1 is the distance from the point D to the point A are met.
The further technical scheme of the invention is as follows: the step S3 further includes the steps of:
step S31: in the floating roller mechanism, G1 and G2 are balanced about a point O, so three acting forces borne by the floating roller are respectively F1, F2 and F3, F2 is the friction force of a displacement sensor, and F2=0 during balancing, so as to sum up, when the floating roller is balanced, F1 multiplied by L2= F3 multiplied by L1, L2 is the distance from the point A to the point O, and L1 is the distance from the point D to the point A, therefore, when the tension of the paper needs to be controlled, F1/2, the force F3 of an air cylinder can be adjusted, if the floating roller is unbalanced, the lifting and the descending of the point A can be caused, and at the same time, the point B is lifted and descended, and at the moment, the displacement sensor can feed the displacement of the point B back to the traction roller unit, and the tension of the paper can be changed by adjusting the speed of the traction roller unit, so that the floating roller mechanism conforms to the balance force of the paper, and the purpose of controlling the tension of the paper can.
The invention has the beneficial effects that: adopt two carry over pinch rolls unit double floating roll mechanism design, carry out accurate control to the tension of printing in-process paper, make the paper move more stably in the printing engine, platform perfect adaptation host computer speed, the linkage is stable, operates steadily, and production speed is very fast, and it is fast to trade the list, is fit for middle-size and small-size order, does not have the plate-making, trades version and printing ink, and is with low costs, moves noiselessness and pollution-free, and printing quality is stable.
Drawings
FIG. 1 is a first structural diagram of a floating roller mechanism provided by an embodiment of the invention;
FIG. 2 is a second structural diagram of a floating roller mechanism according to an embodiment of the present invention;
FIG. 3 is a front view structural diagram of a digital label printer according to an embodiment of the present invention;
FIG. 4 is a rear view structural diagram of a digital label printer according to an embodiment of the present invention;
fig. 5 is a perspective view of a digital label printer according to an embodiment of the present invention;
fig. 6 is a schematic force diagram of a floating roller mechanism according to an embodiment of the present invention.
Detailed Description
Reference numerals: the device comprises the following components of 1-a wall plate 2-a connecting shaft 3-a mounting flange 4-a first lever 5-a counterweight balance block 6-a displacement sensor 7-a second lever 8-a floating roller 9-an air cylinder 10-a digital printer 11-a deviation rectifying unit 12-a first traction roller unit 13-an unreeling mechanism 14-a second traction roller unit 15-a reeling mechanism 16-a floating roller mechanism.
Fig. 3 to 5 show a digital label printing machine according to the present invention, which further includes a digital printer 10, an unwinding mechanism 13 having a deviation correcting unit 11 and a first pull roll unit 12 disposed at one side of the digital printer 10, and a winding mechanism 15 having a second pull roll unit 14 disposed at the other side of the digital printer 10, wherein two floating roll mechanisms 16 are disposed on the unwinding mechanism 13 and the winding mechanism 14, respectively. The digital printer 10, the unreeling mechanism 13 with the deviation correcting unit 11 and the first pull roll unit 12, and the reeling mechanism 15 with the second pull roll unit 14 used by the digital label printer are all devices in the prior art, so that redundant description is not given, and the reeling and unreeling positions are controlled to rotate by a servo motor during use, so that the paper reeling diameter is monitored in real time, and stable reeling and unreeling tension is provided; unreel the end and rectify automatically, position stability when guaranteeing that the paper gets into digital printing machine 10, two carry over pinch rolls units adopt servo motor control, real-time supervision motor speed, guarantee that paper tension in service is stable, and through two floating roll mechanism 16, further tension of accurate control paper in digital printing machine 10, read the position of floating roll 8 through displacement sensor 6, match with the speed of adaptation digital printing machine 10, it is stable at paper tension, print under the circumstances of paper velocity invariant, guarantee the stability of printing quality, the upgrading of printing from the sheet-fed paper to the web printing has still been realized, and the production efficiency is improved, and the unit cost is reduced.
Fig. 1-2 show a floating roller mechanism 16, floating roller mechanism 16 includes fixed mounting and just runs through the mounting flange 3 that wallboard 1 has connecting axle 2 on wallboard 1, set up in the wallboard 1 outside and with 2 one end fixed connection's of connecting axle of mounting flange 3 first lever 4 one end sets up the counter weight balancing piece 5 that first lever 4 one end is used for playing the balancing act, the activity sets up on wallboard 1 outside and expansion end swing joint first lever 4 other end is used for measuring displacement distance's displacement sensor 6, set up at wallboard 1 inboard and one end with mounting flange 3's 2 other end fixed connection's of connecting axle second lever 7 sets up the floating roller 8 that is used for taut paper on the second lever 7 other end, and the activity sets up 1 inboard and expansion end swing joint of wallboard second lever 7 is used for the pulling the cylinder 9 of second lever 7.
The first lever 4 and the second lever 7 are on the same horizontal plane, and on the horizontal plane of agreement, so as to ensure the uniformity; the displacement sensor 6 is a linear displacement sensor, and the moving distance can be measured more accurately by adopting the linear displacement sensor; the floating roller 8 is an adjustable eccentric floating roller, so that the selection type of the floating roller 8 is more flexible and changeable, and the floating roller can adapt to more equipment; the cylinder 9 is a low-friction cylinder, and low-friction cylinders with different cylinder diameters can be selected according to different requirements and can also be selected according to the requirements of customers.
A method of installing a dancer mechanism of a digital label printer, the method comprising the steps of:
step S1: installing an installation flange 3 on a wall plate 1 according to installation requirements, installing a first lever 4 and a second lever 7 on a connecting shaft 2 of the installation flange 3, and analyzing various applied forces according to the stress conditions of the first lever 4 and the second lever 7, as shown in fig. 6;
step S11: analyzing the force acting on the first lever 4, namely the gravity of the counterweight balance block 5, and recording the force as G2, and the friction force of the displacement sensor 6 per se, and recording the force as F2;
step S12: the force acting on the second lever 7 is analyzed as the force exerted by the paper on the dancer roller 8, denoted F1, and has a value twice the paper tension determined according to the digital printer 10, the gravity of the dancer roller 8 itself is denoted G1, and the force exerted by the air cylinder 9 on the second lever 7 is denoted F3.
Step S2: installing a balance weight 5, a displacement sensor 6, a floating roller 8 and a cylinder 9 on the first lever 4 and the second lever 7 according to various acting forces;
step S21: taking the connecting shaft 2 of the mounting flange 3 as a fulcrum, which is marked as O, the G2 acting force of the counterweight balance block 5 needs to act on a point E of the first lever 4, the point E is the mounting position of the counterweight balance block 5, the F2 acting force of the displacement sensor 6 needs to act on a point B of the first lever 4, and the point B is the movable fixing position of the displacement sensor 6;
step S22: the point A is the installation position of the floating roller 8 when the F1 acting force of the floating roller 8 needs to act on the point A of the second lever 7, the installation position of the air cylinder 9 is determined according to the position of the air cylinder 9 with different cylinder diameters acting on the second lever 7, the movable fixing position is marked as D, the point D is closer to the point O when the output force is larger and the point D is closer to the point A, and the point D is closer to the point A on the contrary, but F1 multiplied by L2= F3 multiplied by L1, L2 is the distance from the point A to the point O, and L1 is the distance from the point D to the point A.
Step S3: the dancer mechanism 16 is eventually brought into equilibrium to control the tension of the paper.
Step S31: in the dancing roller mechanism 16, G1 and G2 are balanced about point O, so the three acting forces applied to the dancing roller 8 are F1, F2, and F3, f2 is the friction of the displacement sensor 6 itself, and F2=0 in equilibrium, and as can be seen from the above, when the dancer roller 8 is in equilibrium, f1 XL 2= F3 XL 1, L2 is the distance from the point A to the point O, L1 is the distance from the point D to the point A, therefore, when the tension F1/2 of the paper needs to be controlled, the force F3 of the air cylinder 9 can be adjusted, if the dancer roll 8 is unbalanced, it will cause the point a to rise and fall, and at the same time point B will rise and fall, and at this time the displacement sensor 6 will feed the displacement of point B back to the pull roll unit, the tension of the paper is changed by adjusting the speed of the traction roller unit, so that the floating roller mechanism 16 conforms to the balance force, and the aim of controlling the tension of the paper is fulfilled.
Adopt two carry over pinch rolls unit double floating roll mechanism design, carry out accurate control to the tension of printing in-process paper, make the paper move more stably in the printing engine, platform perfect adaptation host computer speed, the linkage is stable, operates steadily, and production speed is very fast, and it is fast to trade the list, is fit for middle-size and small-size order, does not have the plate-making, trades version and printing ink, and is with low costs, moves noiselessness and pollution-free, and printing quality is stable.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a floating roll mechanism, its characterized in that, floating roll mechanism includes that fixed mounting just runs through the wallboard and has the mounting flange of connecting axle on the wallboard, set up in the wallboard outside and with mounting flange's connecting axle one end fixed connection's first lever sets up first lever one end is used for playing the counter weight balancing piece of balancing act, and the activity sets up on the wallboard outside and expansion end swing joint the first lever other end is used for measuring displacement distance's displacement sensor, set up in the wallboard inboard and one end with mounting flange's connecting axle other end fixed connection's second lever sets up the floating roll that is used for taut paper on the second lever other end, and the activity sets up on the wallboard inboard and expansion end swing joint the second lever is used for the pulling the cylinder of second lever.
2. The dancer mechanism of claim 1, wherein the first lever and the second lever are on a same horizontal plane.
3. The dancer mechanism of claim 2, wherein the displacement sensor is a linear displacement sensor.
4. The dancer mechanism of claim 3, wherein the dancer is an adjustable eccentric dancer.
5. A dancer mechanism as in claim 4, wherein the cylinder is a low friction cylinder.
6. The digital label printing machine with the floating roller mechanism according to any one of claims 1 to 5, further comprising a digital printer, an unwinding mechanism with a deviation correcting unit and a first pull roller unit disposed at one side of the digital printer, and a winding mechanism with a second pull roller unit disposed at the other side of the digital printer, wherein the number of the floating roller mechanisms is two, and the two floating roller mechanisms are disposed on the unwinding mechanism and the winding mechanism respectively.
7. The method of mounting a dancer mechanism for a digital label printer according to claim 6, comprising the steps of:
step S1: mounting the mounting flange on the wall plate according to mounting requirements, mounting the first lever and the second lever on a connecting shaft of the mounting flange, and analyzing various acting forces according to the stress conditions of the first lever and the second lever;
step S2: installing a balance weight, a displacement sensor, a floating roller and a cylinder on a first lever and a second lever according to various acting forces;
step S3: finally, the floating roller mechanism is in balance so as to control the tension of the paper.
8. The mounting method according to claim 7, wherein the step S1 further includes the steps of:
step S11: analyzing the force acting on the first lever, namely the gravity of the counterweight balance block, and recording the force as G2, and the friction force of the displacement sensor per se as F2;
step S12: the force acting on the second lever was analyzed as the force exerted by the paper on the dancer roll, denoted F1, and a value of twice the paper tension, which was determined according to the digital printer, the gravity of the dancer roll itself, denoted G1, and the force exerted by the air cylinder on the second lever, denoted F3.
9. The mounting method according to claim 8, wherein the step S2 further includes the steps of:
step S21: taking the connecting shaft of the mounting flange as a fulcrum, which is marked as O, the G2 acting force of the counterweight balance block needs to act on a point E of the first lever, the point E is the mounting position of the counterweight balance block, the F2 acting force of the displacement sensor needs to act on a point B of the first lever, and the point B is the movable fixed position of the displacement sensor;
step S22: according to the F1 acting force of the floating roller, the point A is required to act on the point A of the second lever, the mounting position of the floating roller is determined according to the position of the second lever acted by the cylinder with different cylinder diameters, the movable fixing position is determined, the mounting position is marked as D, the larger the cylinder diameter is, the larger the output force is, the closer the point D is to the point O, and the closer the point D is to the point A, otherwise, the closer the point D is to the point A, but the requirements of F1 multiplied by L2= F3 multiplied by L1, L2 is the distance from the point A to the point O, and L1 is the distance from the point D to the point A are met.
10. The mounting method according to claim 9, wherein the step S3 further includes the steps of:
step S31: in the floating roller mechanism, G1 and G2 are balanced about a point O, so three acting forces borne by the floating roller are respectively F1, F2 and F3, F2 is the friction force of a displacement sensor, and F2=0 during balancing, so as to sum up, when the floating roller is balanced, F1 multiplied by L2= F3 multiplied by L1, L2 is the distance from the point A to the point O, and L1 is the distance from the point D to the point A, therefore, when the tension of the paper needs to be controlled, F1/2, the force F3 of an air cylinder can be adjusted, if the floating roller is unbalanced, the lifting and the descending of the point A can be caused, and at the same time, the point B is lifted and descended, and at the moment, the displacement sensor can feed the displacement of the point B back to the traction roller unit, and the tension of the paper can be changed by adjusting the speed of the traction roller unit, so that the floating roller mechanism conforms to the balance force of the paper, and the purpose of controlling the tension of the paper can.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010518561.6A CN111572212B (en) | 2020-06-09 | 2020-06-09 | Floating roller mechanism, digital label printer and installation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010518561.6A CN111572212B (en) | 2020-06-09 | 2020-06-09 | Floating roller mechanism, digital label printer and installation method |
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| CN111572212A true CN111572212A (en) | 2020-08-25 |
| CN111572212B CN111572212B (en) | 2023-10-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022104788A1 (en) * | 2020-11-23 | 2022-05-27 | 深圳市博泰数码智能技术有限公司 | Automatic die-cutting device |
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| Publication number | Publication date |
|---|---|
| CN111572212B (en) | 2023-10-13 |
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