CN219636525U - Gear rack reverse pulling device for printing equipment - Google Patents
Gear rack reverse pulling device for printing equipment Download PDFInfo
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- CN219636525U CN219636525U CN202320394989.3U CN202320394989U CN219636525U CN 219636525 U CN219636525 U CN 219636525U CN 202320394989 U CN202320394989 U CN 202320394989U CN 219636525 U CN219636525 U CN 219636525U
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
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- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of printing equipment, in particular to a gear rack reverse pulling device for the printing equipment, which comprises first sliding rails and paired second sliding rails, wherein each first sliding rail is provided with a first sliding block, each second sliding rail is provided with a second sliding block, a rotatable first floating roller is arranged between the two first sliding blocks, and a rotatable second floating roller is arranged between the two second sliding blocks; a driving motor is arranged between the first sliding rail and the second sliding rail, an output shaft of the driving motor is fixedly connected with a driving roller, each second sliding block is fixedly connected with a rack, and a first gear meshed with the rack in a transmission way is fixedly sleeved on the peripheral side surface of the driving roller. The second floating roller is driven to move up and down through the driving motor to realize the back pulling of paper, the mode of adopting the torsion spring back pulling in the past is replaced, the tension of the paper is relatively stable, the printing position is enabled to be more accurate, the production efficiency is improved, in addition, the transmission mode of the gear and the rack is adopted, the adjusting precision is further improved, and the product quality is further improved.
Description
Technical Field
The utility model relates to the technical field of printing equipment, in particular to a gear rack back-pulling device for printing equipment.
Background
The operation of the material during the printing process usually requires a paper feed buffer, and is particularly directed to a printing apparatus in an intermittent operation mode during the printing process, and the paper needs to be pulled back during the printing process, so that the paper feed buffer is required to maintain a certain tension by using the reverse pull structure.
See application number: patent document CN201520554388X discloses an integrated double-guide paper feeding and back-drawing system, comprising a frame mounted and fixed at the front end of a printing machine; the frame of (a) installs the traction roller at the top, the mid-mounting of frame has two pairs of linear guide that are separated and parallel arrangement each other, still install feed roll and dancer roll between traction roller and linear guide, linear guide includes feed linear guide and returns paper linear guide, wherein be equipped with the left transfer roller of taking the feed extension spring on the feed linear guide, be equipped with the right transfer roller of taking the feed extension spring on the return paper linear guide, two pairs of linear guide play a pull back's effect, the suitability is strong, when the circumstances of fold or walk the skew appears in the printing paper, left transfer roller and right transfer roller slide from top to bottom along linear guide under the effect of corresponding feed extension spring and return paper extension spring, will bear the printing paper and straighten, guarantee can not appear walking the position and walk the circumstances of skew. The pull-back mode of the printing equipment mainly returns through the elasticity of the tension spring, has the problems of low controllability and low pull-back response speed, easily causes insufficient paper tension, and is unstable in paper feeding process, so that the production efficiency is low.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a gear rack reverse pulling device for printing equipment, which can solve the problem of low production efficiency.
The aim of the utility model is achieved by the following technical scheme: the utility model provides a gear rack reverse pulling device for printing equipment, which comprises a pair of first sliding rails and a pair of second sliding rails which are arranged at intervals along the paper conveying direction, wherein each first sliding rail is provided with a first sliding block which is in sliding fit with the first sliding rail, each second sliding rail is provided with a second sliding block which is in sliding fit with the second sliding rail, at least one rotatable first floating roller is arranged between the two first sliding blocks, and at least one rotatable second floating roller is arranged between the two second sliding blocks; a driving motor is arranged between the first sliding rail and the second sliding rail, an output shaft of the driving motor is fixedly connected with a driving roller, a rack is fixedly connected to one side of each second sliding block, facing the driving roller, of the driving roller, and a first gear meshed with the rack in a transmission manner is fixedly sleeved on the side face of the periphery of the driving roller.
And a rotatable driven roller is further arranged between the first sliding rail and the second sliding rail, and the driving roller and the driven roller are aligned in the height direction.
Wherein, the peripheral side of driven roller is fixed to be overlapped and is equipped with the second gear with rack transmission meshing.
The number of the first floating rollers is two, the two first floating rollers are arranged at intervals along the paper conveying direction, a rotatable first guide roller is further arranged above the first sliding rail, and the first guide roller is located at the middle position of the two first floating rollers.
And a rotatable second guide roller is further arranged between the first sliding rail and the second sliding rail.
And one side of the second sliding rail far away from the first sliding rail is also provided with a rotatable third guide roller.
Wherein, driving motor is servo motor.
The first sliding block is also provided with a tension spring which drives the first sliding block to move upwards or move towards the first sliding block.
The gear rack back-pulling device for the printing equipment has the following beneficial effects: the second floating roller is driven to move up and down through the driving motor to realize the back pulling of paper, the mode of adopting the torsion spring back pulling in the past is replaced, the tension of the paper is relatively stable, the printing position is enabled to be more accurate, the production efficiency is improved, in addition, the transmission mode of the gear and the rack is adopted, the adjusting precision is further improved, and the product quality is further improved.
Drawings
The utility model will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the utility model, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 is a schematic diagram of a rack and pinion reverse drawing device for a printing apparatus according to an embodiment.
Fig. 2 is a schematic structural view of a rack and pinion reverse pulling apparatus for a printing apparatus according to another embodiment.
Reference numerals: the device comprises a first sliding rail 1, a first sliding block 11, a first floating roller 12, a second sliding rail 2, a second sliding block 21, a second floating roller 22, a first guide roller 31, a second guide roller 32, a third guide roller 33, a driving motor 41, a driving roller 42, a driven roller 43, a rack 50, a first gear 51 and a second gear 52.
Detailed Description
The utility model will be further described with reference to the following examples.
As shown in fig. 1 to 2, the embodiment of the rack-and-pinion reverse pulling device for printing equipment of the present utility model includes a pair of first slide rails 1 and a pair of second slide rails 2 that are disposed at intervals along the paper conveying direction, each first slide rail 1 is provided with a first slide block 11 that is in sliding fit with the first slide rail 1, each conveying second slide rail 2 is provided with a second slide block 21 that is in sliding fit with the second slide rail 2, two rotatable first floating rollers 12 are disposed between the two first slide blocks 11, and in other embodiments, the number of first floating rollers 12 may be only one, and one rotatable second floating roller 22 is disposed between the respective second slide blocks 21. In addition, the first slider 11 is also provided with a tension spring (not shown) that urges it upward or toward.
In this embodiment, the number of the first floating rollers 12 is two, the two first floating rollers 12 are arranged at intervals along the paper conveying direction, a rotatable first guide roller 31 is further arranged above the first sliding rail 1, the first guide roller 31 is located at the middle position of the two first floating rollers 12, a rotatable second guide roller 32 is further arranged between the first sliding rail 1 and the second sliding rail 2, and a rotatable third guide roller 33 is further arranged on one side, away from the first sliding rail 1, of the second sliding rail 2.
As an improvement, a driving motor 41 is arranged between the first sliding rail 1 and the second sliding rail 2, an output shaft of the driving motor 41 is fixedly connected with a driving roller 42, a rack 50 is fixedly connected on one side of each second sliding block 21 facing the driving roller 42, and a first gear 51 in transmission engagement with the rack 50 is fixedly sleeved on the outer peripheral side surface of the driving roller 42. In order to ensure the smoothness of the movement of the second floating roller 22 in the height direction, a rotatable driven roller 43 is further provided between the first slide rail 1 and the second slide rail 2, and the driving roller 42 is aligned with the driven roller 43 in the height direction. The outer peripheral side surface of the driven roller 43 is fixedly sleeved with a second gear 52 which is in driving engagement with the rack 50.
Preferably, the driving motor 41 is a servo motor, and the servo motor is suitable for an intermittent offset press, and can work more accurately and stably.
Referring to fig. 1, the working process of the rack and pinion reverse pulling device of this embodiment is as follows: the paper passes through the second dancer 22 on the right side after passing through the first guide roller 31 from the first dancer 12 on the left side, and then passes through the third dancer after passing through the second guide roller 32 and the second dancer 22 sequentially after exiting from the second dancer 22 on the right side. Since the first dancer 12 on the left side and the first dancer 12 on the right side are fixed together on the first slider 11, the slider is pulled down by a tension spring, so that the sheet is maintained at a tension within a range. The first gear 51 is fixed to an output shaft of the driving motor 41, and the second gear 52 is rotatable with the rotation of the first gear 51 with the aid of the rack 50. When the driving motor 41 is operated, the rack 50 is lifted or lowered to drive the second dancer 22 to be lifted or lowered, and when the paper is pulled back, the second dancer 22 is lowered.
The gear rack back-pulling device for the printing equipment of the embodiment drives the second floating roller 22 to move up and down to achieve back-pulling of paper through the driving motor 41, replaces the mode of back-pulling by a torsion spring in the past, enables the tension of the paper to be relatively stable, enables printing registration to be more accurate, improves production efficiency, and further improves adjusting precision by adopting a transmission mode of gears and racks 50, thereby improving product quality.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (8)
1. The rack and pinion reverse pulling device for the printing equipment is characterized by comprising a pair of first sliding rails and a pair of second sliding rails which are arranged at intervals along the paper conveying direction, wherein each first sliding rail is provided with a first sliding block which is in sliding fit with the first sliding rail, each second sliding rail is provided with a second sliding block which is in sliding fit with the second sliding rail, at least one rotatable first floating roller is arranged between the two first sliding blocks, and at least one rotatable second floating roller is arranged between the two second sliding blocks;
a driving motor is arranged between the first sliding rail and the second sliding rail, a driving roller is fixedly connected to an output shaft of the driving motor, racks are fixedly connected to one sides of the second sliding blocks facing the driving roller, and a first gear meshed with the racks in a transmission mode is fixedly sleeved on the side face of the periphery of the driving roller.
2. A rack and pinion reverse pull apparatus for printing equipment as claimed in claim 1, wherein: and a rotatable driven roller is further arranged between the first sliding rail and the second sliding rail, and the driving roller and the driven roller are aligned in the height direction.
3. A rack and pinion reverse pull apparatus for printing equipment according to claim 2, wherein: and a second gear meshed with the rack in a transmission way is fixedly sleeved on the outer peripheral side surface of the driven roller.
4. A rack and pinion reverse pull apparatus for printing equipment as claimed in claim 1, wherein: the number of the first floating rollers is two, the two first floating rollers are arranged at intervals along the paper conveying direction, a rotatable first guide roller is further arranged above the first sliding rail, and the first guide roller is located at the middle position of the two first floating rollers.
5. A rack and pinion reverse pull apparatus for printing equipment as claimed in claim 1, wherein: and a rotatable second guide roller is further arranged between the first sliding rail and the second sliding rail.
6. A rack and pinion reverse pull apparatus for printing equipment as claimed in claim 1, wherein: and a rotatable third guide roller is further arranged on one side, away from the first slide rail, of the second slide rail.
7. A rack and pinion reverse pull apparatus for printing equipment as claimed in claim 1, wherein: the driving motor is a servo motor.
8. A rack and pinion reverse pull apparatus for printing equipment as claimed in claim 1, wherein: the first sliding block is also provided with a tension spring for driving the first sliding block to move upwards or move towards the first sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320394989.3U CN219636525U (en) | 2023-03-03 | 2023-03-03 | Gear rack reverse pulling device for printing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320394989.3U CN219636525U (en) | 2023-03-03 | 2023-03-03 | Gear rack reverse pulling device for printing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219636525U true CN219636525U (en) | 2023-09-05 |
Family
ID=87810604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320394989.3U Active CN219636525U (en) | 2023-03-03 | 2023-03-03 | Gear rack reverse pulling device for printing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219636525U (en) |
-
2023
- 2023-03-03 CN CN202320394989.3U patent/CN219636525U/en active Active
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