CN209505193U - A kind of printing machine vacuum tank elevating mechanism - Google Patents
A kind of printing machine vacuum tank elevating mechanism Download PDFInfo
- Publication number
- CN209505193U CN209505193U CN201821977633.8U CN201821977633U CN209505193U CN 209505193 U CN209505193 U CN 209505193U CN 201821977633 U CN201821977633 U CN 201821977633U CN 209505193 U CN209505193 U CN 209505193U
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- vacuum tank
- printing machine
- elevating mechanism
- eccentric shaft
- mechanism according
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Abstract
The utility model provides a kind of printing machine vacuum tank elevating mechanism, and including the vacuum box assembly being arranged between two side plates of printing machine, which includes vacuum tank and the rubber roller that is arranged on the downside of vacuum tank；The side of the vacuum tank is pivotally connected with two side plates, and the other side is connect by an eccentric adjustment with two side plates；The eccentric adjustment includes the driving device of an eccentric shaft and driving eccentric shaft turns, and the side that vacuum tank is connect with the eccentric adjustment can be swung up and down with the rotation of eccentric shaft.The structure of the elevating mechanism is simple and Adjustment precision is high.
Description
Technical field
The utility model relates to printer technology field, in particular to a kind of printing machine vacuum tank elevating mechanism.
Background technique
The vacuum tank of lower type printing press paper feed unit and paper feeding rubber roller are an integral structure (integral structure system at present
Referred to as vacuum box assembly), realize the lifting of vacuum tank, generally by lifting motor control lead screw rotation so as to adjust paper feeding
Gap between rubber roller and lower compression roller.Such scenario-frame is complicated, and at high cost, maintenance cost is also higher, and lead screw transmission
Idle running affects the Adjustment precision in gap.
As it can be seen that the prior art has much room for improvement and improves.
Utility model content
Place in view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of printing machine vacuum tank liters
Descending mechanism, structure is simple and Adjustment precision is high.
In order to achieve the above object, the utility model takes following technical scheme:
A kind of printing machine vacuum tank elevating mechanism should including the vacuum box assembly being arranged between two side plates of printing machine
Vacuum box assembly includes vacuum tank and the rubber roller that is arranged on the downside of vacuum tank；The side of the vacuum tank connects with two side plate pivots
It connects, the other side is connect by an eccentric adjustment with two side plates；The eccentric adjustment include an eccentric shaft and
Drive eccentric shaft turns driving device, the side that vacuum tank is connect with the eccentric adjustment can with the rotation of eccentric shaft and
It swings up and down.
In the printing machine vacuum tank elevating mechanism, the eccentric shaft it is arranged between two end axis, two
End axis passes through bearing block respectively and two side plates are rotatablely connected, and the driving device is sequentially connected with a wherein butt axis.
In the printing machine vacuum tank elevating mechanism, the both ends of the eccentric shaft are rotatably provided with square respectively
The sliding block of shape, position corresponding with sliding block transversely offers U-shaped fluting, two sliding blocks point on the siding at the vacuum tank both ends
It is not slidably disposed in two U-shaped flutings.
In the printing machine vacuum tank elevating mechanism, the sliding block passes through bearing and eccentric axis connection.
In the printing machine vacuum tank elevating mechanism, the upper and lower sides of the U-shaped fluting are respectively detachably provided with one
Cushion block.
In the printing machine vacuum tank elevating mechanism, the end of the end axis far from driving device is fixed with a positioning
Block, rectilinear(-al) of the contour of the locating piece by a helix and radially connected helix both ends, axis corresponding with the end axis
It holds and is provided with a proximity sensor on seat, the circumferential surface setting of the proximity sensor face locating piece.
In the printing machine vacuum tank elevating mechanism, the driving device is motor, which passes through a retarder
With corresponding end axis connection.
In the printing machine vacuum tank elevating mechanism, one piece of support is respectively detachably provided on described two side plates
The siding of plate, the vacuum tank both ends is rotatablely connected far from the side of eccentric shaft by a drive-connecting shaft and two pieces of support plates.
The utility model has the advantages that
The utility model provides a kind of printing machine vacuum tank elevating mechanism, the side of vacuum tank and two sides of printing machine
Plate is pivotally connected, and the other side is connect by an eccentric adjustment with two side plates, drives eccentric shaft to turn by driving device
When dynamic the corresponding side of vacuum tank can swing up and down, thus by the rotational angle for adjusting eccentric shaft, adjustable vacuum
The height of case, so that the gap between rubber roller and lower compression roller is adjusted, relative to lifting motor plus the elevating mechanism of lead screw, structure
It is simpler, and the idle running of lead screw transmission is not present, Adjustment precision is higher.
Detailed description of the invention
Fig. 1 is the perspective view of printing machine vacuum tank elevating mechanism provided by the utility model.
Fig. 2 is the enlarged drawing of S portion in Fig. 1.
Fig. 3 is the cross-sectional view of printing machine vacuum tank elevating mechanism provided by the utility model.
Fig. 4 is the F magnified partial view in Fig. 3.
Fig. 5 is the structural schematic diagram of eccentric adjustment in printing machine vacuum tank elevating mechanism provided by the utility model.
Fig. 6 is the enlarged drawing of the part G in Fig. 5.
Fig. 7 is the distribution of locating piece and proximity sensor in printing machine vacuum tank elevating mechanism provided by the utility model
Figure.
Specific embodiment
The utility model provides a kind of printing machine vacuum tank elevating mechanism, to make the purpose of this utility model, technical solution
And effect is clearer, clear, and the utility model is further described as follows in conjunction with drawings and embodiments.It should manage
Solution, specific embodiment described herein only to explain the utility model, are not used to limit the utility model.
Fig. 1-7, a kind of printing machine vacuum tank elevating mechanism provided by the utility model are please referred to, including is arranged in printing machine
Vacuum box assembly 1 between two side plates 90, the vacuum box assembly include vacuum tank 1.1 and the rubber roller that is arranged on the downside of vacuum tank
1.2；The side (front side or rear side) of the vacuum tank is pivotally connected with two side plates 90, and the other side passes through an eccentric adjustment machine
Structure 2 is connect with two side plates 90；The eccentric adjustment includes the driving dress of an eccentric shaft 2.1 and driving eccentric shaft turns
2.2 are set, the side that vacuum tank is connect with the eccentric adjustment can be swung up and down with the rotation of eccentric shaft.
When due to eccentric shaft turns, the side that vacuum tank is connect with the eccentric adjustment can be swung up and down, therefore logical
The rotational angle of eccentric shaft, the height of adjustable vacuum tank are overregulated, to adjust the gap between rubber roller and lower compression roller, phase
For the elevating mechanism of lifting motor plus lead screw, structure is simpler, and manufacturing cost is lower, and the sky of lead screw transmission is not present
Journey, Adjustment precision are higher.
Specifically, the eccentric shaft 2.1 is eccentrically arranged between two end axis 2.3, two end axis pass through bearing respectively
Seat 2.4 and two side plates 90 are rotatablely connected, and the driving device 2.2 is sequentially connected with a wherein butt axis.Driving device driving
Axis rotation is held, to drive center line rotation of the eccentric shaft around end axis, since bearing block is fixed on side plate 90, end axis is not
It can move, the upper and lower position of eccentric shaft can change with rotation, so that rubber roller opposite end axis be made to move up and down, lower compression roller is connection
On two side plates 90, upper and lower position is motionless, it is possible to realize that rubber roller is moved up and down with respect to lower compression roller.
Further, the both ends of the eccentric shaft 2.1 are rotatably provided with the sliding block 2.5 of rectangle respectively, described
Position corresponding with sliding block transversely offers U-shaped fluting 1.1a on the siding at 1.1 both ends of vacuum tank, and two sliding blocks can be slided respectively
It is arranged in two U-shaped flutings dynamicly.
Eccentric shaft is contacted by sliding block with U-shaped fluting, eccentric shaft itself can be prevented to be worn, therefore its use can be improved
Service life reduces frequency of maintenance, and then reduces maintenance cost；And when being swung due to vacuum tank, with the phase of eccentric shaft horizontally
It is variation to position, if the hole that U-shaped fluting is set as one with slider shape phase cylinder will be led after sliding block enters the hole
Cause vacuum tank that can not swing, and if U-shaped fluting is set as the long sliding hole being laterally arranged, although will not influence vacuum tank pendulum
It is dynamic, but assembly and disassembly are more troublesome, and being set as U-shaped fluting herein not only will not influence vacuum tank swing, and sliding block can be from U-shaped when assembly and disassembly
The opening of fluting passes in and out, and is convenient to mount and dismount.
In the present embodiment, the sliding block 2.5 is connect by bearing with eccentric shaft 2.1.It can be replaced after slider wear,
Guarantee degree of regulation.
Preferably, the upper and lower sides of the U-shaped fluting 1.1a are respectively detachably provided with a cushion block 1.1b.The sliding block
2.5 upper and lower sides and cushion block friction can prevent U-shaped fluting to be worn in itself and influence degree of regulation, which is expendable part, mill
It can be replaced after damage, to guarantee degree of regulation.Specifically, the cushion block is the L-type block being made of main part and interconnecting piece,
Middle main part offsets with sliding block, and interconnecting piece is connect with the wallboard screws of vacuum tank end, as in Figure 2-4, the cushion block of the structure
It assembles and disassembles simple and fast.
See Fig. 5-7, the end of the end axis 2.3 far from driving device 2.2 is fixed with a locating piece 2.6, the locating piece
Contour is arranged on bearing block 2.4 corresponding with the end axis by the rectilinear(-al) of a helix and radially connected helix both ends
There is a proximity sensor 2.7, the circumferential surface setting of the proximity sensor face locating piece.The circumferential surface of proximity sensor and locating piece
The distance between be with the rotational angle of end axis it is one-to-one, when needing control terminal axis to turn to some angle, then controlling
After target angle is arranged in system processed, control system can generate a target range according to according to the target angle, and when end, axis turns
It moves when meeting target range position, proximity sensor can be triggered, and control system controls driving device and stops, and hold axis at this time
Rotational angle is target angle, and the control logic of the control process is simple, and control is reliable and control precision is high.
In the present embodiment, proximity sensor 2.7 is fixed on a mounting rack 2.7a, the mounting rack and 2.4 spiral shell of bearing block
Nail connection.Further, the mounting rack is provided with the signal output connector 2.7b of the proximity sensor, is used for and signal
Transmission line connection.
Specifically, the driving device 2.2 is motor, which passes through a retarder 2.2a and corresponding end axis 2.3
Connection.It can be improved output torque by retarder.
In addition, one piece of support plate 90.1 is respectively detachably provided on described two side plates 90,1.1 both ends of vacuum tank
Side of the siding far from eccentric shaft 2.1 pass through a drive-connecting shaft 3 and the rotation connections of two pieces of support plates.Two pieces of support plates are arranged can
Increase the distance between drive-connecting shaft 3 and eccentric shaft 2.1, eccentric shaft turns certain angle, vacuum tank swing angle is smaller, thus partially
The rotational angle of mandrel caused rubber roller and is pushed there are when certain error, causing the swing angle error of vacuum tank smaller
Gap error between roller is smaller.
It is understood that for those of ordinary skills, can with technical solution according to the present utility model and
The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement all should belong to the protection of the utility model
Range.
Claims (8)
1. a kind of printing machine vacuum tank elevating mechanism, which is characterized in that including the vacuum being arranged between two side plates of printing machine
Box assembly, the vacuum box assembly include vacuum tank and the rubber roller that is arranged on the downside of vacuum tank；The side of the vacuum tank with two
Side plate is pivotally connected, and the other side is connect by an eccentric adjustment with two side plates；The eccentric adjustment includes one
The driving device of eccentric shaft and driving eccentric shaft turns, the side that vacuum tank is connect with the eccentric adjustment can be with bias
The rotation of axis and swing up and down.
2. printing machine vacuum tank elevating mechanism according to claim 1, which is characterized in that be arranged to the eccentric shaft
Between two end axis, two end axis pass through bearing block respectively and two side plates are rotatablely connected, the driving device and wherein one
The transmission connection of butt axis.
3. printing machine vacuum tank elevating mechanism according to claim 2, which is characterized in that distinguish at the both ends of the eccentric shaft
It is rotatably provided with the sliding block of rectangle, position corresponding with sliding block transversely opens up on the siding at the vacuum tank both ends
There is U-shaped fluting, two sliding blocks are respectively slidably arranged in two U-shaped flutings.
4. printing machine vacuum tank elevating mechanism according to claim 3, which is characterized in that the sliding block is by bearing and partially
Mandrel connection.
5. printing machine vacuum tank elevating mechanism according to claim 3, which is characterized in that the upper and lower sides of the U-shaped fluting
Respectively it is detachably provided with a cushion block.
6. printing machine vacuum tank elevating mechanism according to claim 3, which is characterized in that the end axis far from driving device
End is fixed with a locating piece, the contour of the locating piece by a helix and radially connected helix both ends straight line group
At being provided with a proximity sensor on bearing block corresponding with the end axis, the circumferential surface of the proximity sensor face locating piece is set
It sets.
7. printing machine vacuum tank elevating mechanism according to claim 2, which is characterized in that the driving device is motor,
The motor passes through a retarder and corresponding end axis connection.
8. printing machine vacuum tank elevating mechanism according to claim 1, which is characterized in that each removable on described two side plates
It is provided with one piece of support plate with unloading, the siding at the vacuum tank both ends passes through a drive-connecting shaft and two pieces far from the side of eccentric shaft
Support plate rotation connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821977633.8U CN209505193U (en) | 2018-11-28 | 2018-11-28 | A kind of printing machine vacuum tank elevating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821977633.8U CN209505193U (en) | 2018-11-28 | 2018-11-28 | A kind of printing machine vacuum tank elevating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209505193U true CN209505193U (en) | 2019-10-18 |
Family
ID=68191119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821977633.8U Active CN209505193U (en) | 2018-11-28 | 2018-11-28 | A kind of printing machine vacuum tank elevating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209505193U (en) |
-
2018
- 2018-11-28 CN CN201821977633.8U patent/CN209505193U/en active Active
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