CN219115048U - Tandem roller device of printing machine - Google Patents
Tandem roller device of printing machine Download PDFInfo
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- CN219115048U CN219115048U CN202223486200.1U CN202223486200U CN219115048U CN 219115048 U CN219115048 U CN 219115048U CN 202223486200 U CN202223486200 U CN 202223486200U CN 219115048 U CN219115048 U CN 219115048U
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Abstract
The utility model discloses a roller stringing device of a printing machine, which comprises a roller stringing device, a worm gear transmission mechanism, an eccentric adjusting mechanism and a crank connecting rod mechanism. The worm and gear transmission mechanism comprises a worm and gear box arranged on the outer side of the operation side wall plate, and a worm wheel which is meshed with the worm and is arranged on the worm wheel shaft are arranged in the worm and gear box; the eccentric adjusting mechanism comprises an eccentric block mounting seat fixed on one end face of the worm wheel shaft, an eccentric block movably embedded in the eccentric block mounting seat and an adjusting bolt inserted into bolt through holes on a pair of short sides of the eccentric block mounting seat and connected in a first threaded hole of the eccentric block in a threaded mode. The crank connecting rod mechanism comprises an internal thread joint bearing, an external thread joint bearing and a Y-shaped joint which are sequentially connected with a second threaded hole of the eccentric block through screws, and the other end of the Y-shaped joint is fixed on the operation side wallboard. The utility model can steplessly adjust the axial serial quantity of the serial roller, thereby meeting different printing requirements.
Description
Technical Field
The utility model relates to a roller stringing device of a printing machine.
Background
Tandem rollers are used in both the ink and water paths of the printer. In the ink path, the roller is mainly used for the serial dynamic friction to ensure that the thicknesses of the ink layers axially different on the surface of the roller body can be smoothly transited. In waterways, a stable water source is provided by the serial movement. The cluster roller thus has an indispensable effect on the quality of the final printing. The amount of the run-in roller is usually achieved by an eccentric amount. The cluster roller in the traditional printing machine adopts fixed eccentric quantity to adjust the cluster quantity. Due to the instability and diversity of the ink feed, the fixed eccentricity often does not fully satisfy the resolution of the printing problem in each case. In order to avoid the occurrence of axial abrupt change of ink layer thickness due to the limitation that the serial amount of the serial roller is fixed, improvement of the existing serial amount adjusting mechanism is needed.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a roller stringing device of a printing machine, which can steplessly adjust the axial stringing quantity of a roller stringing, thereby meeting different printing requirements.
The purpose of the utility model is realized in the following way: a roller-stringing device of a printer comprises a roller-stringing device, a worm gear transmission mechanism, an eccentric adjusting mechanism and a crank connecting rod mechanism which are bridged between a driving side wall plate and an operating side wall plate of the printer through a roller-stringing mandrel,
the worm and gear transmission mechanism comprises a worm and gear box arranged on the outer side of the operation side wall plate, and a worm wheel which are meshed with the worm and are arranged on a worm wheel shaft are arranged in the worm and gear box, wherein the worm is arranged on a roller mandrel penetrating out of the operation side wall plate;
the eccentric adjusting mechanism comprises an eccentric block mounting seat, an eccentric block and an adjusting bolt;
the eccentric block mounting seat is a rectangular frame with a long side larger than a short side, bolt holes are respectively formed on the end faces of a pair of short sides of the eccentric block mounting seat along the long side symmetry axis of the eccentric block mounting seat, and the eccentric block mounting seat is fixed on one end face of the worm wheel shaft in a mode that the long side symmetry axis intersects with the axis of the worm wheel shaft;
the eccentric block is movably embedded in the eccentric block mounting seat, a first threaded hole is formed in the end face of the eccentric block along the moving direction, and a second threaded hole perpendicular to the first threaded hole is formed in the side face of the eccentric block;
the adjusting bolt is inserted into a pair of bolt through holes on the short edges of the eccentric block mounting seat and is in threaded connection with the first threaded hole of the eccentric block, the adjusting bolt is rotated to enable an eccentric amount to be arranged between the axis of the second threaded hole of the eccentric block and the axis of the worm wheel shaft, and after adjustment is completed, a nut is used for locking the tail of the adjusting bolt;
the crank connecting rod mechanism comprises an internal thread knuckle bearing, an external thread knuckle bearing and a Y-shaped joint;
the inner ring of the internal thread joint bearing is connected in the second threaded hole of the eccentric block through a screw;
the rod end of the external thread joint bearing is connected with the rod end of the internal thread joint bearing;
one end of the Y-shaped connector is connected with the inner ring of the external thread joint bearing, and the other end of the Y-shaped connector is fixed on the operation side wallboard.
The roller stringing device of the printer comprises a worm gear box, a worm wheel shaft, a deep groove ball bearing, a framework oil seal, a bearing end cover and a roller sleeve, wherein the shaft sleeve, the deep groove ball bearing and the framework oil seal are respectively arranged at two ends of the worm wheel shaft in sequence in the worm gear box; the worm gear box is internally provided with a deep groove ball bearing and a framework oil seal at two ends of the worm respectively in sequence, and the outer end of the cluster roller mandrel is also provided with a bearing end cover.
The roller stringing device of the printing machine, wherein millimeter scale marks are arranged on the surface of one long side of the eccentric block mounting seat.
The roller stringing device of the printer further comprises a guide mechanism, wherein the guide mechanism comprises guide holes which are formed in the upper portion of the worm gear box and parallel to the mandrel of the roller stringing, two sliding bearings which are arranged at two ends of the guide holes in a one-to-one correspondence mode, and a guide column, one end of which is fixed on the operation side wall plate, and the other end of which is inserted into the guide holes from the inner side face of the worm gear box.
The tandem roller device of the printing machine has the following characteristics: by arranging the eccentric adjusting mechanism consisting of the eccentric block mounting seat, the eccentric block and the adjusting bolt, the utility model optimizes the limitation that the prior art can only adjust the fixed eccentric amount, can adjust any position of the eccentric block in the eccentric block mounting seat according to the printing requirement, realizes the requirements of different eccentric amounts of the tandem roller, furthest homogenizes the printing ink and provides a water source, so that the printing ink transferred onto the printing plate is more uniform in the axial direction, reduces or eliminates the occurrence of the condition that the thickness of the printing ink layer is suddenly changed in the axial direction, and ensures the printing quality.
Drawings
FIG. 1 is a schematic view of a cluster tool of a printing press according to the present utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a partial axial cross-sectional view of a cluster tool of the printer of the present utility model;
fig. 4 is an A-A view of fig. 3.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, the cluster roller device of the printer of the present utility model includes a cluster roller 1, a worm gear, a eccentric adjusting mechanism 3, a crank link mechanism 4 and a guide mechanism 5, which are bridged between a driving side wall plate and an operating side wall plate 100 of the printer through a cluster roller mandrel 10 and a bearing block 11.
The worm and gear transmission mechanism comprises a worm and gear box 2 arranged on the outer side of the operation side wall plate 100, wherein a worm 21 arranged on a cluster roller mandrel 10 penetrating out of the operation side wall plate 100 and a worm wheel 22 meshed with the worm 21 and arranged on a worm wheel shaft 20 are arranged in the worm and gear box 2; the worm gear box 2 is internally provided with a shaft sleeve 23, a deep groove ball bearing 24 and a framework oil seal 25 at two ends of a worm wheel shaft 20 in sequence respectively, and a bearing end cover 26 is arranged at one end of the worm wheel shaft 20; the worm gear box 2 is also internally provided with a deep groove ball bearing 24 and a framework oil seal 25 at two ends of the worm 21 respectively, and a bearing end cover 26 is also arranged at the outer end of the cluster roller mandrel 10.
The eccentric adjusting mechanism 3 comprises an eccentric block mounting seat 31, an eccentric block 32 and an adjusting bolt 33; wherein,,
the eccentric block mounting seat 31 is a rectangular frame with a long side larger than a short side, bolt holes are respectively formed on the end faces of a pair of short sides of the eccentric block mounting seat 31 along the long side symmetry axis of the eccentric block mounting seat 31, and millimeter scale marks are formed on the surface of one long side of the eccentric block mounting seat 31; the eccentric block mounting seat 31 is fixed on the other end surface of the worm wheel shaft 20 in such a manner that the long-side symmetry axis intersects with the axis of the worm wheel shaft 20;
the eccentric block 32 is movably embedded in the eccentric block mounting seat 31, a first threaded hole is formed in the end face of the eccentric block 32 along the moving direction, the first threaded hole is a fine thread, and a second threaded hole perpendicular to the first threaded hole is formed in the side face of the eccentric block 32; a pointer is arranged on the surface of the eccentric block 32 corresponding to the millimeter scale mark on the eccentric block mounting seat 31;
the adjusting bolt 33 is inserted into the bolt through hole on the eccentric block mounting seat 31 and is in threaded connection with the first threaded hole of the eccentric block 32, the adjusting bolt 33 is rotated to enable an eccentric amount d to be arranged between the axis of the second threaded hole of the eccentric block 32 and the axis of the worm wheel shaft 20, the eccentric amount d is the axial serial amount of the serial roller 1, and after adjustment, the tail of the adjusting bolt 33 is locked by a nut 34.
The crank-link mechanism 4 includes an internally threaded knuckle bearing 41, an externally threaded knuckle bearing 42, and a Y-joint 43; wherein,,
the inner ring of the internal thread knuckle bearing 41 is connected in the second threaded hole of the eccentric block 32 through a screw 40; a rubber round belt 44 is arranged between the adjusting bolt 33 and the tail end of the screw 40 in the second threaded hole of the eccentric slide block 32, and the rubber round belt 44 can play a role in guiding and eliminating the gap between the screw 40 and the adjusting bolt 33;
the rod end of the external thread knuckle bearing 42 is connected with the rod end of the internal thread knuckle bearing 41;
one end of the Y-joint 43 is connected to the inner race of the externally threaded knuckle bearing 42, and the other end of the Y-joint 43 is fixed to the operation side wall plate 100.
The guide mechanism 5 includes a guide hole 50 provided in the upper portion of the worm wheel and worm box 2 and parallel to the spindle of the cluster roller 10, two slide bearings 51 provided at both ends of the guide hole 50 in one-to-one correspondence, and a guide post 52 having one end fixed to the operation side wall plate 100 and the other end inserted into the guide hole 50 from the inner side surface of the worm wheel and worm box 2.
When the roller stringing device of the printer works, the roller stringing 1 is driven to rotate by a driving mechanism which is arranged on the outer side of the driving side wall plate and is in transmission connection with the roller stringing mandrel 10, the worm 21 in the worm gear box 2 is synchronously rotated after the roller stringing 1 rotates, the worm wheel 22 is driven to rotate at the same time, the worm wheel shaft 20 is further driven to rotate, the eccentric block mounting seat 31 fixed on the end face of the worm wheel shaft 20 and the eccentric block 32 are driven to rotate together, the crank connecting rod mechanism 4 connected to the eccentric block 32 is driven to drive the worm gear box 2 to axially reciprocate, the worm gear box 2 can only axially reciprocate by the guide mechanism 5, and the roller stringing 1 is driven to axially reciprocate between the driving side wall plate and the operating side wall plate 100.
When the amount of the cluster roller 1 needs to be adjusted, the screw 40 connected with the second threaded hole of the eccentric block 32 is removed, then the nut 34 is loosened to rotate the adjusting bolt 33, so that the eccentric block 32 moves in the eccentric block mounting seat 31, the eccentric amount d between the axis of the second threaded hole on the eccentric block 32 and the axis of the worm wheel shaft 20 is adjusted, after the pointer on the eccentric block 32 is observed to be aligned with a scale mark on the eccentric block mounting seat 31 in the adjusting process, the value of the eccentric amount d can be read, namely, the adjustment of the amount of the cluster roller 1 is completed, and the nut 34 is locked on the tail of the adjusting bolt 33. If the second threaded hole on the eccentric block 32 is not coaxial with the inner ring of the internal thread knuckle bearing 41, the worm 21 is driven to rotate by rotating the cluster roller 1, so that the worm wheel 22 rotates, the second threaded hole on the eccentric block 32 is coaxial with the inner ring of the internal thread knuckle bearing 41, and then the screw 40 is screwed into the second threaded hole on the eccentric block 32, so that adjustment is completed.
The above embodiments are provided for illustrating the present utility model and not for limiting the present utility model, and various changes and modifications may be made by one skilled in the relevant art without departing from the spirit and scope of the present utility model, and thus all equivalent technical solutions should be defined by the claims.
Claims (4)
1. A roller-stringing device of a printer comprises a roller-stringing device, a worm gear transmission mechanism, an eccentric adjusting mechanism and a crank connecting rod mechanism which are bridged between a driving side wall plate and an operating side wall plate of the printer through a roller-stringing mandrel,
the worm and gear transmission mechanism comprises a worm and gear box arranged on the outer side of the operation side wall plate, and a worm wheel which are meshed with the worm and are arranged on a worm wheel shaft are arranged in the worm and gear box, wherein the worm is arranged on a roller mandrel penetrating out of the operation side wall plate;
the eccentric adjusting mechanism comprises an eccentric block mounting seat, an eccentric block and an adjusting bolt;
the eccentric block mounting seat is a rectangular frame with a long side larger than a short side, bolt holes are respectively formed on the end faces of a pair of short sides of the eccentric block mounting seat along the long side symmetry axis of the eccentric block mounting seat, and the eccentric block mounting seat is fixed on one end face of the worm wheel shaft in a mode that the long side symmetry axis intersects with the axis of the worm wheel shaft;
the eccentric block is movably embedded in the eccentric block mounting seat, a first threaded hole is formed in the end face of the eccentric block along the moving direction, and a second threaded hole perpendicular to the first threaded hole is formed in the side face of the eccentric block;
the adjusting bolt is inserted into a pair of bolt through holes on the short edges of the eccentric block mounting seat and is in threaded connection with the first threaded hole of the eccentric block, the adjusting bolt is rotated to enable an eccentric amount to be arranged between the axis of the second threaded hole of the eccentric block and the axis of the worm wheel shaft, and after adjustment is completed, a nut is used for locking the tail of the adjusting bolt;
the crank connecting rod mechanism comprises an internal thread knuckle bearing, an external thread knuckle bearing and a Y-shaped joint;
the inner ring of the internal thread joint bearing is connected in the second threaded hole of the eccentric block through a screw;
the rod end of the external thread joint bearing is connected with the rod end of the internal thread joint bearing;
one end of the Y-shaped connector is connected with the inner ring of the external thread joint bearing, and the other end of the Y-shaped connector is fixed on the operation side wallboard.
2. The roller assembly of claim 1, wherein the worm gear box is provided with a shaft sleeve, a deep groove ball bearing and a framework oil seal at two ends of the worm gear shaft in sequence, and a bearing end cover is arranged at the other end of the worm gear shaft; the worm gear box is internally provided with a deep groove ball bearing and a framework oil seal at two ends of the worm respectively in sequence, and the outer end of the cluster roller mandrel is also provided with a bearing end cover.
3. The cluster roller assembly of a printer of claim 1, wherein the eccentric mass mount has millimeter scale markings on a surface of one long side.
4. A tandem roller apparatus of a printer according to any one of claims 1 to 3, further comprising a guide mechanism including a guide hole provided in an upper portion of the worm wheel and worm box and parallel to a spindle of the tandem roller, two slide bearings provided at both ends of the guide hole in one-to-one correspondence, and a guide post having one end fixed to the operation side wall plate and the other end inserted into the guide hole from an inner side surface of the worm wheel and worm box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223486200.1U CN219115048U (en) | 2022-12-26 | 2022-12-26 | Tandem roller device of printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223486200.1U CN219115048U (en) | 2022-12-26 | 2022-12-26 | Tandem roller device of printing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219115048U true CN219115048U (en) | 2023-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223486200.1U Active CN219115048U (en) | 2022-12-26 | 2022-12-26 | Tandem roller device of printing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219115048U (en) |
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- 2022-12-26 CN CN202223486200.1U patent/CN219115048U/en active Active
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