CN203728280U - Unwinding mechanism of winding drum printing machine - Google Patents
Unwinding mechanism of winding drum printing machine Download PDFInfo
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- CN203728280U CN203728280U CN201320885746.6U CN201320885746U CN203728280U CN 203728280 U CN203728280 U CN 203728280U CN 201320885746 U CN201320885746 U CN 201320885746U CN 203728280 U CN203728280 U CN 203728280U
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- 238000004804 winding Methods 0.000 title abstract 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 7
- 210000003746 feather Anatomy 0.000 description 5
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
An unwinding mechanism of a winding drum printing machine comprises an unwinding support, an unwinding shaft and an unwinding servo control device; the unwinding servo control device comprises an installing frame, a braking fixed sheet, a braking hub, a braking moving sheet and a servo cylinder; the installing frame is connected with the unwinding support; the braking hub is arranged between the braking fixed sheet and the braking moving sheet; the braking moving sheet is arranged between the braking hub and the servo cylinder; the braking hub is connected with the unwinding shaft; a piston rod of the servo cylinder is towards the braking moving sheet and is in contact with the braking moving sheet. The unwinding mechanism is characterized in that the piston rod of the servo cylinder comprises a rod body and an adjusting block; the adjusting block in in threaded connection with the front end of the rod body; the axis of threads is located in the length direction of the rod body. According to the unwinding mechanism of the winding drum printing machine, the position of the adjusting block can be adjusted and accordingly an idle stroke gap of the servo cylinder and a gap caused by abrasion of the braking sheets can be eliminated, a resistance characteristic curve of the unwinding servo control device can be corrected, and accordingly an automatic shutdown of the printing machine due to a high limit alarm shutdown fault alarm of a paper storage box is avoided.
Description
Technical field
The utility model relates to printing machinery, is specifically related to a kind of unreeling structure of web press.
Background technology
The tension force of printing production line is mainly regulated by setting value automatically by tension adjustment case, and the absolute value surplus capacity producing in self-regulating process provides Ge to digest by storing carton.Storage carton is mainly to provide relatively constant tension force to tension adjustment case, and storage carton itself also asks for to work paper roll the normal operating altitude that relatively constant resistance maintains itself.If the resistance that work paper roll is sent here is excessive, stores carton and can cause because front and back are stressed low spacing alarm to shut down; Otherwise, if the resistance that work paper roll is sent here is too small, stores carton and will cause high spacing alarm to shut down.From the friction drag (being drag friction power) of work paper roll, be the main factor that affects the normal work of tension force variotrol, during paper roll work, to guarantee all the time to have in its position, point of contact the resistance consistent with tension force relative size to exist.
The unreeling structure of web press generally comprises and unreels support, unreeling shaft and unreel Servocontrol device, and unreeling shaft is rotatably arranged on and unreels on support; Unreel Servocontrol device and comprise erecting frame, brake stator, brake hubs, brake moving plate and at least one servo cylinder, erecting frame with unreel support and be connected, brake stator is fixed on erecting frame, brake hubs is located between brake stator and brake moving plate, brake moving plate is located between brake hubs and servo cylinder, the cylinder body of servo cylinder is arranged on erecting frame, and the piston rod of servo cylinder contacts towards brake moving plate and with brake moving plate, and brake hubs connects with unreeling shaft.Brake hubs connects with unreeling shaft by feather key conventionally, and brake hubs can rotate and can move axially along unreeling shaft with unreeling shaft, and above-mentioned feather key can be dive key or spline.On above-mentioned erecting frame, be conventionally also provided with and can prevent from braking the brake moving plate detent mechanism of moving plate with brake hubs rotation.
During web press work, master control PC calculates the current coil diameter of work paper roll according to paper sheet thickness, produce corresponding data, by bus transfer, arrive the PLC of unreeling structure, by this PLC, produce a corresponding current signal and remove to control intelligent ratio adjusting valve, and this ratio adjusting valve is this current signal and the own initial parameter value stack setting itself, the scale parameter value that calculating makes new advances, and export corresponding control presssure and remove to control servo cylinder, the pressure size of the compressed gas of being sent here according to ratio adjusting valve by servo cylinder again, remove to drive brake moving plate, brake moving plate is applied to the thrust towards brake hubs of corresponding size, the moving plate that makes to brake applies the gripping power of corresponding size jointly with brake stator to brake hubs, between brake hubs and brake facing (comprising brake stator and brake moving plate), produce the friction drag (being drag friction power) of corresponding size, thereby unreeling shaft is produced to the resistance of corresponding size.
From lever principle, master control PC is as long as send corresponding control command to the PLC of unreeling structure according to the size of coil diameter, control ratio adjusting valve, that is to say, the coil diameter of work paper roll from big to small, actuating unit (servo cylinder, brake moving plate, Brake nave boss and brake stator) corresponding output resistance from big to small, thus make the position, point of contact of work paper roll keep resistance and equalization of strain.If servo cylinder has idle travel gap, and/or brake facing produces gap because of wearing and tearing, after these two kinds of gap stacks, will cause drag characteristic curved, like this, when the coil diameter of work paper roll is less than a certain numerical value (as 450 millimeter), according to the scale parameter value of the definite ratio adjusting valve of this coil diameter numerical value (as 40 left and right), remove to control servo cylinder, by the resistance that there will be actuating unit output, it is zero situation, now work position, point of contact resistance and the tension force lack of equilibrium of paper roll, cause storing the rising that is swift in response of carton buffering self-balancing, if at this moment resistance fails to recover, this rising can continue, until high spacing alarm machine halt trouble occurs.
The unreeling structure work-hours of above-mentioned web press long afterwards; servo cylinder has idle travel gap; simultaneously because of brake facing wearing and tearing at brake moving plate Yu between Brake nave boss, Brake nave boss between stator, produce gap with braking; after these two kinds of gap stacks; will cause when on unwinding mechanism of printing machine, remaining working paper coil coil-diameter is less; friction force between brake facing and Sha Che Grains is zero; the resistance that makes the position, point of contact of work paper roll is zero; so that store carton high spacing alarm machine halt trouble warning occurs, thereby cause printer auto-stop.Because the each shutdown of printer all can cause a large amount of substandard products, if do not settled the matter once and for all, often connect a paper and will stop machine No. one time, cause the serious waste of paper roll, and reduce production efficiency, to printing enterprise, bring great loss.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of unreeling structure of web press; this unreeling structure is by regulating; the gap that can eliminate the idle travel gap of servo cylinder and cause because of brake facing wearing and tearing; correction unreels the drag characteristic curve of Servocontrol device; make printer when work work position, point of contact of paper roll keep resistance and equalization of strain, thereby avoid printer the high spacing alarm machine halt trouble auto-stop of reporting to the police to occur because of storage carton.The technical scheme adopting is as follows:
A unreeling structure for web press, comprises and unreels support, unreeling shaft and unreel Servocontrol device, unreeling shaft is rotatably arranged on and unreels on support, unreel Servocontrol device and comprise erecting frame, brake stator, brake hubs, brake moving plate and at least one servo cylinder, erecting frame with unreel support and be connected, brake stator is fixed on erecting frame, brake hubs is located between brake stator and brake moving plate, brake moving plate is located between brake hubs and servo cylinder, brake hubs connects with unreeling shaft, the cylinder body of servo cylinder is arranged on erecting frame, the piston rod of servo cylinder contacts towards brake moving plate and with brake moving plate, it is characterized in that: the piston rod of described servo cylinder comprises the body of rod and adjustment block, body of rod rear end connects the piston of servo cylinder, the adjustment block body of rod front end that is threaded, the axis of described screw thread is on the length direction of the body of rod.
Servo cylinder can apply the thrust towards brake hubs to brake moving plate; By rotating adjustment block, adjustment block is moved, the length of adjustable whole piston rod along the length direction of the body of rod.During initialization, conventionally piston rod is adjusted to minimum length, piston rod front end (lever front end or adjustment block) contacts with brake moving plate.Unreeling structure work-hours long afterwards, if servo cylinder has idle travel gap, or because brake facing weares and teares at brake moving plate Yu between Brake nave boss, between Brake nave boss and brake stator, produce gap, the gap that can cause according to the wearing and tearing of the idle travel gap of servo cylinder and/or brake facing, rotate adjustment block, make adjustment block towards brake moving plate, move suitable distance along the length direction of the body of rod, now whole piston rod increases suitable length, the piston rod of servo cylinder and brake moving plate again close contact, and brake moving plate, brake hubs, brake stator is close contact successively, thereby eliminate above-mentioned gap, correction unreels the drag characteristic curve of Servocontrol device, make drag characteristic curve again newly get back to linear relationship, make printer when work work position, point of contact of paper roll keep resistance and equalization of strain.
In a kind of concrete scheme, the above-mentioned body of rod is cylinder, and lever front end portion has externally threaded external thread section, and adjustment block is provided with screw, and the negative thread of this screw is meshed with the outside thread of external thread section.In this case, the axis of externally threaded axis and negative thread all with the dead in line of the body of rod, the axes orientation of the body of rod is the length direction of the body of rod.While needing, rotate adjustment block, adjustment block is moved on external thread section, when lever front end is retracted in the screw in adjustment block, the length of whole piston rod increases.After regulating the position of adjustment block, adjustment block should be substantially equal to original body of rod and the area of contact of the moving plate that brakes conventionally with the area of contact of brake moving plate, before and after making to regulate, contact area is substantially constant, more preferably in scheme, the face area of above-mentioned adjustment block towards brake moving plate one end equals the face area of lever front end.For the ease of operation, the latter half of cross-sectional plane outer rim of preferred above-mentioned adjustment block is shaped as equilateral polygon (as regular hexagon or octagon), can be with this position of the tool holdings such as spanner during adjusting.
In another kind of concrete scheme, above-mentioned lever front end is provided with screw along body of rod length direction, in this screw, is provided with screw rod, and this screw front end is fixedly connected with adjustment block.More preferably the above-mentioned body of rod is cylinder, is located at the axis of screw and the dead in line of the body of rod of lever front end.In this case, the front end face of adjustment block contacts with brake moving plate.Above-mentioned screw rod conventionally and adjustment block make one.During initialization, conventionally screw rod is screwed in to screw completely, now piston rod has minimum length, and the length of piston rod is the summation of body of rod length and adjustment block length; While needing adjusting piston pole length, rotate adjustment block, make screw rod from screw, stretch out suitable length, thereby make piston rod increase corresponding length.For the ease of operation, the cross-sectional plane outer rim of preferred above-mentioned adjustment block is shaped as equilateral polygon (as regular hexagon or octagon), can be by tool holding adjustment blocks such as spanners during adjusting.
In order to make the moving plate stress equalization that brakes, above-mentioned servo cylinder is typically provided with a plurality of (for example four).More preferably in scheme, above-mentioned a plurality of servo cylinders were upwards uniformly distributed in the week of unreeling shaft, and the moving plate stress equalization that is so more conducive to brake, between make to brake each position of moving plate and Brake nave boss, the friction force that produces between brake each position of stator and Brake nave boss is balanced.
Above-mentioned brake hubs connects with unreeling shaft by feather key conventionally, and brake hubs can rotate and can move axially along unreeling shaft with unreeling shaft.Above-mentioned feather key can be dive key or spline.
Conventionally, in order to prevent from braking, moving plate rotates with brake hubs, be beneficial to more accurately control the friction drag between brake moving plate and brake hubs, on above-mentioned erecting frame, be also provided with brake moving plate detent mechanism, in a kind of concrete scheme, brake moving plate detent mechanism comprises a plurality of radius stays and a plurality of abutment sleeve, each radius stay all parallels with unreeling shaft, radius stay is identical with abutment sleeve quantity and corresponding one by one, abutment sleeve be socketed on radius stay and with radius stay bearing fit, each abutment sleeve is all fixedly connected with brake moving plate.Generally, above-mentioned a plurality of radius stay was upwards uniformly distributed in the week of unreeling shaft; Each abutment sleeve is all fixedly connected with the edge of brake moving plate.Servo cylinder is during to brake moving plate applied thrust, and brake moving plate and abutment sleeve are along the moving axially of unreeling shaft under the guiding of radius stay, and brake moving plate produces positive pressure to brake hubs; Meanwhile, due to the restriction of radius stay and abutment sleeve, after contacting with brake hubs, brake moving plate can not rotate with brake hubs.
In preferred version, above-mentioned erecting frame is provided with brake moving plate is applied to the pull back spring of the back pressure thrust of servo cylinder (towards).In one concrete scheme, above-mentioned pull back spring is Compress Spring, erecting frame is provided with the spring position-limited lever that is parallel to unreeling shaft, pull back spring is enclosed within on spring position-limited lever, pull back spring rear end contacts with brake moving plate, front end contacts with erecting frame, by pull back spring is set, the piston rod front end of make to brake moving plate and servo cylinder is kept in touch.Common above-mentioned pull back spring is provided with a plurality of, and each pull back spring is located at brake hubs outside.
In the utility model, the piston rod length of servo cylinder is adjustable, by regulating the position of adjustment block, can make whole piston rod increase suitable length, with the gap of eliminating the idle travel gap of servo cylinder and causing because of brake facing wearing and tearing, correction unreels the drag characteristic curve of Servocontrol device, make printer when work work position, point of contact of paper roll keep resistance and equalization of strain, thereby avoid printer, because storing carton, high spacing alarm machine halt trouble warning auto-stop occurs, paper roll is fully used, reduce substandard products, enhance productivity and economic benefit.And, owing to passing through to regulate the position of adjustment block, can eliminate because of brake facing wearing and tearing at brake moving plate Yu between Brake nave boss, Brake nave boss between stator, produce gap with braking, therefore before brake facing weares and teares completely, conventionally without changing brake assemblies (comprising brake moving plate, Brake nave boss and brake stator), thereby greatly extend the service life of brake assemblies.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model preferred embodiment 1;
Fig. 2 unreels the structural representation of Servocontrol device in the utility model preferred embodiment 1;
Fig. 3 is the structural representation (part) of servo cylinder piston rod in the utility model preferred embodiment 1;
Fig. 4 is the schematic diagram (part) of servo cylinder piston rod after regulating in the utility model preferred embodiment 1;
Fig. 5 is the structural representation (part) of servo cylinder piston rod in the utility model preferred embodiment 2.
The specific embodiment
Embodiment 1
As depicted in figs. 1 and 2, the unreeling structure of this web press comprises and unreels support 1, unreeling shaft 2 and unreel Servocontrol device 3, and unreeling shaft 2 is rotatably arranged on and unreels on support 1, unreel Servocontrol device 3 and comprise erecting frame 31, brake stator 32, brake hubs 33, brake moving plate 34 and a plurality of servo cylinder 35, erecting frame 31 with unreel support 1 and be connected, brake stator 32 is fixed on erecting frame 31, brake hubs 33 is located between brake stator 32 and brake moving plate 34, brake moving plate 34 is located between brake hubs 33 and servo cylinder 35, brake hubs 33 connects (in the present embodiment with unreeling shaft 2, minor axis 36 is rotatably installed on erecting frame 31, minor axis 36 is connected with one end of unreeling shaft 2 by coupler 37, brake hubs 33 connects with minor axis 36 by feather key (as dive key or spline), thereby realize connecting between brake hubs 33 and unreeling shaft 2, make brake hubs 33 can with unreeling shaft 2 rotate and can moving axially along unreeling shaft 2), the cylinder body 351 of servo cylinder 35 is arranged on erecting frame 31, the piston rod 352 of servo cylinder 35 contacts towards brake moving plate 32 and with brake moving plate 32, the piston rod 352 of servo cylinder 35 comprises the body of rod 3521 and adjustment block 3522, and the body of rod 3521 rear ends connect the piston of servo cylinders 35, adjustment block 3522 body of rod 3521 front ends that are threaded.
With reference to figure 3 and Fig. 4, in the present embodiment, the body of rod 3521 is cylinder, the body of rod 3521 leading sections are to have externally threaded external thread section 3523, adjustment block 3522 is provided with screw 3524, the negative thread of this screw 3524 is meshed with the outside thread of external thread section 3523, in this case, on external thread section 3523 axis of the negative thread of externally threaded axis and screw 3524 all with the dead in line of the body of rod 3521, the axes orientation of the body of rod 3521 is the length direction (axis that is to say the negative thread of externally threaded axis on external thread section 3523 and screw 3524 is all on the length direction of the body of rod 3521) of the body of rod 3521.Conventionally in design, the face area of adjustment block 3522 towards brake moving plate 34 one end is substantially equal to the face area of the body of rod 3521 front ends, like this, after regulating the position of adjustment block 3522, the area of contact of adjustment block 3522 and brake moving plate 34 is substantially equal to the area of contact of original body of rod 3521 and brake moving plate 34, makes to regulate front and back contact area substantially constant; Preferably make the face area of adjustment block 3522 towards brake moving plate 34 one end equal the face area of the body of rod 3521 front ends.The cross-sectional plane outer rim of adjustment block latter half of 3525 is shaped as regular hexagon, can be with this position of the tool holdings such as spanner during adjusting.
With reference to figure 2, in the present embodiment, brake stator 32 comprises brake stator seat 321 and a plurality ofly determine friction lining 322, determines friction lining 322 and is located at and brakes stator seat 321 in the one side of brake hubs 33; Brake moving plate 34 comprises brake moving plate seat 341 and a plurality of movable friction plate 342, and movable friction plate 342 is located at brake moving plate seat 341 in the one side of brake hubs 33; Brake hubs 33 is cylindric, and end face coordinates with movable friction plate 342 thereafter, its front end face with determine friction lining 322 and coordinate.
In the present embodiment, servo cylinder 35 is provided with four, these four servo cylinders 35 were upwards uniformly distributed in the week of unreeling shaft 2, moving plate 32 stress equalizations that are so more conducive to brake, make to brake moving plate 32 each positions Yu between Brake nave boss 33, brake stator 34 each positions are Yu the friction force producing between Brake nave boss 33 is balanced.
On erecting frame 31, be also provided with brake moving plate detent mechanism, in the present embodiment, brake moving plate detent mechanism comprises a plurality of radius stays 38 and a plurality of abutment sleeve 39, each radius stay 38 all parallels with unreeling shaft 2, radius stay 38 is identical with abutment sleeve 39 quantity and corresponding one by one, abutment sleeve 39 be socketed on radius stay 38 and with radius stay 38 bearing fits, each abutment sleeve 39 is all fixedly connected with brake moving plate 34.Above-mentioned a plurality of radius stay 38 was upwards uniformly distributed in the week of unreeling shaft 2; Each abutment sleeve 39 is all fixedly connected with the edge of brake moving plate 34.Servo cylinder 35 is during to brake moving plate 34 applied thrust, and brake moving plate 34 and abutment sleeve 39 are along the moving axially of unreeling shaft 2 under the guiding of radius stay 38, and 34 pairs of brake hubs of brake moving plate 33 produce positive pressures; Meanwhile, due to the restriction of radius stay 38 and abutment sleeve 39, after contacting with brake hubs 33, brake moving plate 34 can not rotate with brake hubs 33.
Erecting frame 31 is provided with brake moving plate 34 is applied to the pull back spring 310 of the back pressure thrust of servo cylinder 35 (towards), in the present embodiment, pull back spring 310 is Compress Spring, erecting frame 31 is provided with the spring position-limited lever 311 that is parallel to unreeling shaft 2, pull back spring 310 is enclosed within on spring position-limited lever 311, and pull back spring 310 rear ends contact with brake moving plate 34, front end contacts with erecting frame 31.By pull back spring 310 is set, the moving plate 34 that makes to brake is kept in touch with piston rod 352 front ends of servo cylinder 35.In the present embodiment, pull back spring 310 is provided with two, and two pull back springs 310 are symmetrically set in brake hubs 33 outsides.
Brief description is the principle of work of the unreeling structure of this web press once:
During web press work, master control PC calculates the current coil diameter of work paper roll 4 according to paper sheet thickness, produce corresponding data, by bus transfer, arrive the PLC of unreeling structure, by this PLC, produce a corresponding current signal and remove to control intelligent ratio adjusting valve, and this ratio adjusting valve is this current signal and the own initial parameter value stack setting itself, the scale parameter value that calculating makes new advances, and export corresponding control presssure and remove to control servo cylinder 35, the pressure size of the compressed gas of being sent here according to ratio adjusting valve by servo cylinder 35 again, remove to drive brake moving plate 34, brake moving plate 34 is applied to the thrust towards brake hubs 33 of corresponding size, the moving plate 34 that makes to brake applies the gripping power of corresponding size jointly with brake stator 32 to brake hubs 33, between brake hubs 33 and brake facing (comprising brake stator 32 and brake moving plate 34), produce the friction drag (being drag friction power) of corresponding size, thereby unreeling shaft 2 is produced to the resistance of corresponding size, make the position, point of contact of work paper roll 4 keep resistance and equalization of strain.
With reference to figure 3, during unreeling structure initialization, piston rod 352 is adjusted to minimum length, now the body of rod 3521 front ends are given prominence to outside screw 3524, and the body of rod 3521 front ends contact with brake moving plate 34.
Long afterwards, if occur, printer, because the situation that high spacing alarm machine halt trouble is reported to the police occurs storage carton, should overhaul unreeling structure work-hours.If find that servo cylinder 35 has idle travel gap, or because of brake facing wearing and tearing (comprising the wearing and tearing of determining friction lining 322 and movable friction plate 342) at brake moving plate 34 Yu between Brake nave boss 33, between Brake nave boss 33 and brake stator 32, produce gap, the gap that can cause according to the wearing and tearing of the idle travel gap of servo cylinder 35 and/or brake facing, regulate as follows: with reference to figure 4, rotate adjustment block 3522, adjustment block 3522 is moved forward gradually on external thread section 3523, the body of rod 3521 front ends are retracted in the screw 3524 in adjustment block 3522, now the front end face of adjustment block 3522 contacts with brake moving plate 34, when after this adjustment block 3522 continues to move forward gradually on external thread section 3523, the length of whole piston rod 352 increases gradually, and pushes brake moving plate 34 to brake hubs 33 gradually, piston rod 352 and brake moving plate 34 again close contact (being adjustment block 3522 and brake moving plate 34 close contacts) when servo cylinder 35, and brake moving plate 34, brake hubs 33, brake stator 32 are successively during close contact, eliminate in above-mentioned gap, the drag characteristic curve that unreels Servocontrol device is revised, make drag characteristic curve again newly get back to linear relationship, the position, point of contact of the paper roll of guaranteeing to work when next printer works keeps resistance and equalization of strain.
Embodiment 2
As shown in Figure 5, in the present embodiment, the piston rod 352 of servo cylinder 35 adopts following structure: the body of rod 3521 front end edge body of rod 3521 length directions are provided with screw 3526, in this screw 3526, are provided with screw rod 3527, and these screw rod 3527 front ends are fixedly connected with adjustment block 3522; The body of rod 3521 is cylinder, is located at the axis of screw 3526 and the dead in line of the body of rod 3521 of the body of rod 3521 front ends; Screw rod 3527 is made one with adjustment block 3522; The cross-sectional plane outer rim of adjustment block 3522 is shaped as equilateral polygon (as regular hexagon or octagon), can be by tool holding adjustment blocks 3522 such as spanners during adjusting.During initialization, screw rod 3527 can be screwed in to screw 3526 completely, now piston rod 352 has minimum length, and the length of piston rod 352 is the summation of the body of rod 3521 length and adjustment block 3522 length; While needing the length of adjusting piston bar 352, rotate adjustment block 3522, make screw rod 3527 stretch out suitable length from screw 3526, thereby make piston rod 352 increase corresponding length.In this case, during initialization and after regulating, the front end face that piston rod 352 all passes through adjustment block 3522 contacts with brake moving plate 34.
All the other structures of the present embodiment are identical with embodiment 1.
Claims (10)
1. a unreeling structure for web press, comprises and unreels support, unreeling shaft and unreel Servocontrol device, and unreeling shaft is rotatably arranged on and unreels on support, unreel Servocontrol device and comprise erecting frame, brake stator, brake hubs, brake moving plate and at least one servo cylinder, erecting frame with unreel support and be connected, brake stator is fixed on erecting frame, brake hubs is located between brake stator and brake moving plate, brake moving plate is located between brake hubs and servo cylinder, brake hubs connects with unreeling shaft, the cylinder body of servo cylinder is arranged on erecting frame, the piston rod of servo cylinder contacts towards brake moving plate and with brake moving plate, it is characterized in that: the piston rod of described servo cylinder comprises the body of rod and adjustment block, body of rod rear end connects the piston of servo cylinder, the adjustment block body of rod front end that is threaded, the axis of described screw thread is on the length direction of the body of rod.
2. the unreeling structure of web press according to claim 1, is characterized in that: the described body of rod is cylinder, and lever front end portion has externally threaded external thread section, and adjustment block is provided with screw, and the negative thread of this screw is meshed with the outside thread of external thread section.
3. the unreeling structure of web press according to claim 2, is characterized in that: the face area of described adjustment block towards brake moving plate one end equals the face area of lever front end.
4. the unreeling structure of web press according to claim 2, is characterized in that: the latter half of cross-sectional plane outer rim of described adjustment block is shaped as equilateral polygon.
5. the unreeling structure of web press according to claim 1, is characterized in that: described lever front end is provided with screw along body of rod length direction, and in this screw, be provided with screw rod, this screw front end is fixedly connected with adjustment block.
6. the unreeling structure of web press according to claim 5, is characterized in that: the described body of rod is cylinder, is located at the axis of screw and the dead in line of the body of rod of lever front end.
7. the unreeling structure of web press according to claim 5, is characterized in that: the cross-sectional plane outer rim of described adjustment block is shaped as equilateral polygon.
8. according to the unreeling structure of the web press described in claim 1-7 any one, it is characterized in that: described servo cylinder is provided with a plurality of, above-mentioned a plurality of servo cylinders were upwards uniformly distributed in the week of unreeling shaft.
9. according to the unreeling structure of the web press described in claim 1-7 any one, it is characterized in that: on described erecting frame, be also provided with brake moving plate detent mechanism, brake moving plate detent mechanism comprises a plurality of radius stays and a plurality of abutment sleeve, each radius stay all parallels with unreeling shaft, radius stay is identical with abutment sleeve quantity and corresponding one by one, abutment sleeve be socketed on radius stay and with radius stay bearing fit, each abutment sleeve is all fixedly connected with brake moving plate.
10. according to the unreeling structure of the web press described in claim 1-7 any one, it is characterized in that: described erecting frame is provided with brake moving plate is applied to the pull back spring to back pressure; Described pull back spring is Compress Spring, and erecting frame is provided with the spring position-limited lever that is parallel to unreeling shaft, and pull back spring is enclosed within on spring position-limited lever, and pull back spring rear end contacts with brake moving plate, front end contacts with erecting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885746.6U CN203728280U (en) | 2013-12-31 | 2013-12-31 | Unwinding mechanism of winding drum printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885746.6U CN203728280U (en) | 2013-12-31 | 2013-12-31 | Unwinding mechanism of winding drum printing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203728280U true CN203728280U (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320885746.6U Expired - Lifetime CN203728280U (en) | 2013-12-31 | 2013-12-31 | Unwinding mechanism of winding drum printing machine |
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| CN (1) | CN203728280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675006A (en) * | 2020-08-12 | 2020-09-18 | 佛山市帝益机械科技有限公司 | Tie up sticky tape unwinding device |
-
2013
- 2013-12-31 CN CN201320885746.6U patent/CN203728280U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675006A (en) * | 2020-08-12 | 2020-09-18 | 佛山市帝益机械科技有限公司 | Tie up sticky tape unwinding device |
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