CN109292491B - Automatic deviation rectifying mechanism and method - Google Patents

Automatic deviation rectifying mechanism and method Download PDF

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Publication number
CN109292491B
CN109292491B CN201811121964.6A CN201811121964A CN109292491B CN 109292491 B CN109292491 B CN 109292491B CN 201811121964 A CN201811121964 A CN 201811121964A CN 109292491 B CN109292491 B CN 109292491B
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pressing block
medium
cut
driving
block shaft
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CN109292491A (en
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丁彩红
陈垒
童云
黄浩
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Jiangxi Dele Intelligent Technology Co.,Ltd.
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Donghua University
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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
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B65H5/068—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between one or more rollers or balls and stationary pressing, supporting or guiding elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/36—Article guides or smoothers, e.g. movable in operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The invention relates to an automatic deviation rectifying mechanism, which comprises a support frame and is characterized by also comprising: the driving roller is arranged on the supporting frame; n left compression roller mechanisms and N right compression roller mechanisms are arranged on the supporting frame, and N is more than or equal to 1; the left pressing block shaft is provided with N left pressing blocks in a penetrating way, and the right pressing block shaft is provided with N right pressing blocks in a penetrating way; a marker disposed on the medium to be cut; and the left detection component and the right detection component are used for identifying the sign line. The invention further provides an automatic deviation rectifying method based on the automatic deviation rectifying mechanism. The invention utilizes the improvement of the roller set structure, does not increase redundant structures and saves space; the deviation rectification of small-sized equipment, particularly equipment with short transmission distance can be realized.

Description

Automatic deviation rectifying mechanism and method
Technical Field
The invention relates to a mechanism for automatically correcting the deviation of a medium to be cut in the transmission process and an automatic deviation correcting method based on the mechanism.
Background
The off-tracking of media is a problem which is difficult to avoid for a transmission device, and in a printing device and a post-printing cutting device, the off-tracking of media is always a research focus. In the process of medium conveying, due to the abrasion of the roller set and the action of other uncontrollable factors, the medium is difficult to avoid deviation, and the medium needs to be corrected in real time.
At present, the deviation correction of the medium in the industry is mainly the source deviation correction in large-scale equipment, and the separation unreeling module and the host machine keep a correct path in transmission by moving the unreeling frame left and right. This approach is not suitable for small short transmission distance devices. Patent US20030033918A1 provides a cutter follow-up cutting mode for correcting and cutting deviation, when a medium deviates, the cutting line is aligned and cut through the integral rotation of a cutter set, the method can only be applied to trace deviation, and certain requirements are met for the structure of the cutter set.
Disclosure of Invention
The invention aims to provide a medium deviation rectifying mechanism suitable for small-sized cutting equipment and an automatic deviation rectifying method based on the medium deviation rectifying mechanism.
In order to achieve the above object, the technical solution of the present invention is to provide an automatic deviation rectifying mechanism, which includes a supporting frame, and is characterized by further including:
the driving roller is arranged on the supporting frame, is vertical to the transmission direction of the medium to be cut and is used for transmitting the medium to be cut to the cutting mechanism;
the left compression roller mechanism and the right compression roller mechanism are matched with the driving roller to provide clamping force for the medium to be cut;
the left pressing block shaft is provided with N left pressing blocks in a penetrating mode, the right pressing block shaft is provided with N right pressing blocks in a penetrating mode, the left pressing block shaft and the right pressing block shaft are arranged on the supporting frame, the left pressing blocks correspond to the left pressing roller mechanisms in a one-to-one mode, the right pressing blocks correspond to the right pressing roller mechanisms in a one-to-one mode, the left pressing block shaft and the left pressing blocks drive the left pressing roller mechanism group to move, accordingly, the clamping force of the left pressing roller mechanism and the driving roller to a medium to be cut is adjusted, the right pressing block shaft and the right pressing blocks drive the right pressing roller mechanism to move, and therefore, the clamping force of;
the marker is arranged on the medium to be cut and is vertical to the transmission direction of the medium to be cut;
the left detection assembly is composed of J left detection units, the right detection assembly is composed of K right detection units, J is larger than or equal to 1, K is larger than or equal to 1, a medium to be cut firstly passes through the left detection assembly and the right detection assembly and then passes through the driving roller, and the control unit drives the left pressing block shaft and the right pressing block shaft to act according to the time difference of the left detection assembly and the right detection assembly detecting the same mark on the medium to be cut, so that the clamping force is adjusted.
Preferably, the left pressing block and the right pressing block are cams and have the same structure.
Preferably, the left compression roller mechanism and the right compression roller mechanism have the same structure and comprise a fixed seat arranged on the support frame and a lever type compression bar hinged to the fixed seat, one end of the lever type compression bar is higher than the other end of the lever type compression bar under the action of a spring, the higher end of the lever type compression bar is always kept in contact with a corresponding left pressing block or right pressing block, the left pressing block or right pressing block generates downward pressure on the lever type compression bar, the lower end of the lever type compression bar is provided with an elastic cylindrical roller capable of freely rotating, and the elastic cylindrical roller is matched with the driving roller to form the clamping force on the medium to be cut.
Preferably, the number of the left detection units is the same as the number of the right detection units.
Preferably, the markers are L marker lines distributed along the conveying direction of the medium to be cut, and each marker line is perpendicular to the conveying direction of the medium to be cut and spans the whole medium to be cut.
The invention also provides an automatic deviation rectifying method based on the automatic deviation rectifying mechanism, which is characterized by comprising the following steps of:
step 1, driving a left pressing block shaft and a right pressing block shaft, driving a left pressing roller mechanism group to act by the left pressing block shaft and the left pressing block, and driving a right pressing roller mechanism to act by the right pressing block shaft and the right pressing block, so that gaps are formed between the left pressing roller mechanism and a driving roller and between the right pressing roller mechanism and the driving roller, and a medium to be cut penetrates through the gaps from the space between the left pressing roller mechanism and the driving roller and between the right pressing roller mechanism and the driving roller;
step 2, driving a left pressing block shaft and a right pressing block shaft, driving a left pressing roller mechanism to act by the left pressing block shaft and the left pressing block, and driving a right pressing roller mechanism to act by the right pressing block shaft and the right pressing block, so that the left pressing roller mechanism is matched with a driving roller to form clamping force on a medium to be cut, and meanwhile, the right pressing roller mechanism is matched with the driving roller to form clamping force on the medium to be cut;
step 3, the driving roller transmits the medium to be cut to the cutting mechanism;
step 4, in the transmission process, if the left detection assembly and the right detection assembly simultaneously detect the same marker on the medium to be cut, the medium to be cut is not deviated, the step 3 is returned, if the left detection assembly detects the same marker on the medium to be cut before the right detection assembly, the medium to be cut is judged to be deviated rightwards, the step 5 is carried out, if the right detection assembly detects the same marker on the medium to be cut before the left detection assembly, the medium to be cut is judged to be deviated leftwards, and the step 6 is carried out;
step 5, obtaining deviation amount according to the time difference by the control unit, driving the left pressing block shaft and the right pressing block shaft according to the deviation amount, driving the left pressing roller mechanism to act by the left pressing block shaft and the left pressing block, so that the clamping force of the left pressing roller mechanism and the driving roller to the medium to be cut is reduced, and simultaneously driving the right pressing roller mechanism group to act by the right pressing block shaft and the right pressing block, so that the clamping force of the right pressing roller mechanism and the driving roller to the medium to be cut is increased, and returning to the step 4;
and 6, obtaining deviation amount according to the time difference by the control unit, driving the left pressing block shaft and the right pressing block shaft according to the deviation amount, driving the left pressing roller mechanism group to act by the left pressing block shaft and the left pressing block, so that the clamping force of the left pressing roller mechanism and the driving roller on the medium to be cut is increased, and simultaneously driving the right pressing roller mechanism to act by the right pressing block shaft and the right pressing block, so that the clamping force of the right pressing roller mechanism and the driving roller on the medium to be cut is reduced, and returning to the step 4.
Preferably, the method for increasing and adjusting the clamping force by using the automatic deviation rectifying mechanism comprises the following steps:
and controlling the left press block shaft to rotate a certain angle towards the small diameter direction of the left press block cam profile, or controlling the right press block shaft to rotate a certain angle towards the small diameter direction of the right press block cam profile.
Preferably, the method for realizing the clamping force reduction adjustment by adopting the automatic deviation rectifying mechanism comprises the following steps:
and controlling the left press block shaft to rotate a certain angle towards the large diameter direction of the left press block cam profile, or controlling the right press block shaft to rotate a certain angle towards the large diameter direction of the right press block cam profile.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: by improving the roller set structure, redundant structures are not increased, and the space is saved; the deviation rectification of small-sized equipment, particularly equipment with short transmission distance can be realized.
Drawings
FIG. 1 is a schematic composition diagram of the present invention;
FIG. 2 is a partial schematic view of the present invention;
FIG. 3 is a schematic diagram of the media transport and deskewing process of the cutting apparatus according to the present invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The invention relates to a deviation rectifying mechanism of cutting equipment, which comprises a support frame 1, a driving roller 2, a left compression roller mechanism 3, a right compression roller mechanism, a left pressing block shaft 4, a right pressing block shaft 4', a left pressing block 5, a right pressing block, a left detection sensor 6-1 and a right detection sensor 6-2, as shown in figure 1.
The supporting piece 1 is a portal structure supporting piece and is used for mounting other parts and is fixed on a rack of the whole cutting machine. The driving roller 2 is rotatably arranged on the support frame 1, and a power mechanism controlled by the control unit drives the driving roller 2 to rotate. The left compression roller mechanism 3 and the right compression roller mechanism are installed on the upper portion of the deviation rectifying mechanism, and the left compression roller mechanism 3 and the right compression roller mechanism are in tangential contact with the driving roller 2. The left pressing block shaft 4 and the right pressing block shaft 4' are respectively and rotatably arranged at the left side and the right side of the support frame 1 and are driven to rotate by a left power mechanism II and a right power mechanism II which are controlled by the control unit. The left pressing block 5 is fixedly arranged on the left pressing block shaft 4 in a shaft hole matching mode, and the right pressing block is also fixedly arranged on the right pressing block shaft 4' in a shaft hole matching mode. The number of the left pressing blocks 5 and the number of the right pressing blocks are respectively equal to the number of the left pressing roll mechanisms 3 and the number of the right pressing roll mechanisms, and the left pressing blocks and the right pressing blocks are in one-to-one correspondence. In the present embodiment, the left and right compacts 5 and 4 or more are provided in number of at least 4 and are divided in half on the left and right compact shafts 4 and 4' on the left and right sides. The left detection sensor 6-1 and the right detection sensor 6-2 are arranged on the left side and the right side and are fixedly arranged on the support frame 1, and the left detection sensor 6-1 and the right detection sensor 6-2 are positioned above the medium 7 to be cut.
In the present embodiment, the left platen mechanism and the right platen mechanism have the same structure, and the present embodiment will be described by taking the left platen mechanism as an example. Fig. 2 shows a partial view of the present invention. The left press roller mechanism comprises a fixed seat 31, a lever type press plate 32, a spring 33 and an elastic cylindrical roller 34. The fixing seat 31 is fixedly installed on the support frame 1. The middle part of the lever type pressure plate 32 is rotatably arranged on the fixed seat 31 by taking the hinge fulcrum A as a rotating center, and the front end of the lever type pressure plate 32 is provided with an elastic cylindrical roller 34 which can freely rotate. The resilient cylindrical roller 34 is arranged above the drive roll 2 and tangential to the surface of the drive roll 2. The end of the lever type pressure lever 32 is a plane and always keeps contact with the surface of the corresponding left pressing block 5. The upper end of the spring 33 is fixedly installed on the upper portion of the fixed seat 31, the other end of the spring 33 is fixedly installed at a position between the hinge pivot a and the tail end of the lever type pressure lever 32, and the two springs 33 are respectively arranged at two ends of the fixed seat 31. Under the action of the spring 33, the outer surface of the left pressing block 5 is always in contact with the tail end of the lever type pressing plate 32.
With reference to fig. 3, the automatic deviation rectifying method based on the deviation rectifying mechanism disclosed in the present embodiment includes the following steps;
step 1, the left power mechanism II and the right power mechanism II drive the left pressing block shaft 4 and the right pressing block shaft 4' to rotate for a certain angle in the same direction under the control of the control unit, so that the elastic cylindrical roller 34 of the left pressing roller mechanism 3 and the elastic cylindrical roller of the right pressing roller mechanism are lifted and leave the surface of the driving roller 2;
step 2, a medium 7 to be cut penetrates through the space between the driving roller 2 and the left and right pressing roller mechanisms 3 and 4, and after the medium 7 to be cut penetrates through the space, the left and right power mechanisms II drive the left and right pressing block shafts 4 and 4' to rotate for a certain angle in the direction opposite to the direction in the step 1 under the control of the control unit, so that the elastic cylindrical roller 34 of the left pressing roller mechanism 3 and the elastic cylindrical roller of the right pressing roller mechanism are pressed down on the medium 7 to be cut;
and 3, under the driving of the driving roller 2, the medium 7 to be cut is driven to be conveyed forwards at a constant speed.
And 4, in the conveying process of the medium 7 to be cut, a left detection sensor 6-1 and a right detection sensor 6-2 which are positioned above the medium 7 to be cut are used for detecting whether the medium 7 to be cut deviates or not. If the left detection sensor 6-1 and the right detection sensor 6-2 simultaneously detect that the transverse marking line Tx on the medium 7 to be cut is detected, the medium 7 to be cut is not deviated, and at the moment, the left detection sensor 6-1 and the right detection sensor 6-2 return the detection results to the control unit without processing, and the step 3 is returned; if the left detection sensor 6-1 detects the transverse sign line Tx before the right detection sensor 6-2, the right deviation is determined, and the step 5 is entered; if the right detection sensor 6-2 detects the transverse sign line Tx before the left detection sensor 6-1, the left deviation is determined, and the step 6 is entered;
step 5, the left detection sensor 6-1 and the right detection sensor 6-2 return results to the control unit, and according to the transmission speed and the deviation, the right power mechanism II drives the right press block shaft 4' to rotate a certain angle towards the small diameter direction of the cam profile of the right press block under the control of the control unit, and simultaneously drives the left press block shaft 4 to rotate a certain angle in the opposite direction under the control of the control unit, and the step 4 is returned;
and 6, returning results to the control unit by the left detection sensor 6-1 and the right detection sensor 6-2, driving the left press block shaft 4 to rotate a certain angle towards the small diameter direction of the cam profile of the left press block 5 by the left power mechanism II under the control of the control unit according to the transmission speed and the deviation amount, driving the right press block shaft 4' to rotate a certain angle in the opposite direction by the right power mechanism II under the control of the control unit, and returning to the step 4.
And (5) adjusting the off-tracking medium 7 to be cut through the steps 5 and 6 until the off-tracking is not achieved. The cut medium is transmitted to the transverse cutter 8 for transverse cutting after being subjected to deviation correction, and then is longitudinally cut into a plurality of strips by the longitudinal cutter 9.
It should be noted that, the deviation rectifying mechanism and the deviation rectifying method disclosed in the present invention are not only one kind shown in fig. 2 and fig. 3, but those skilled in the art can design different mechanisms to implement the deviation rectifying method of the present invention without departing from the scope of the present invention.

Claims (5)

1. The utility model provides an automatic mechanism of rectifying, includes the support frame, its characterized in that still includes:
the driving roller is arranged on the supporting frame, is vertical to the transmission direction of the medium to be cut and is used for transmitting the medium to be cut to the cutting mechanism;
the left compression roller mechanism and the right compression roller mechanism are matched with the driving roller to provide clamping force for the medium to be cut;
the left pressing block shaft is provided with N left pressing blocks in a penetrating mode, the right pressing block shaft is provided with N right pressing blocks in a penetrating mode, the left pressing block shaft and the right pressing block shaft are arranged on the supporting frame, the left pressing blocks correspond to the left pressing roller mechanisms in a one-to-one mode, the right pressing blocks correspond to the right pressing roller mechanisms in a one-to-one mode, the left pressing block shaft and the left pressing blocks drive the left pressing roller mechanism group to move, accordingly, the clamping force of the left pressing roller mechanism and the driving roller to a medium to be cut is adjusted, the right pressing block shaft and the right pressing blocks drive the right pressing roller mechanism to move, and therefore, the clamping force of;
the marker is arranged on the medium to be cut and is vertical to the transmission direction of the medium to be cut; the marker is L marker lines distributed along the transmission direction of the medium to be cut, and each marker line is perpendicular to the transmission direction of the medium to be cut and spans the whole medium to be cut;
the left detection assembly consists of J left detection units, the right detection assembly consists of K right detection units, J is larger than or equal to 1, K is larger than or equal to 1, a medium to be cut firstly passes through the left detection assembly and the right detection assembly and then passes through the driving roller, and the control unit drives the left pressing block shaft and the right pressing block shaft to act according to the time difference of the left detection assembly and the right detection assembly detecting the same marker on the medium to be cut so as to adjust the clamping force;
the left pressing block and the right pressing block are cams and have the same structure;
the left compression roller mechanism and the right compression roller mechanism are identical in structure and comprise a fixing seat arranged on the supporting frame and a lever type compression bar hinged with the fixing seat, one end of the lever type compression bar is higher than the other end of the lever type compression bar under the action of a spring, the higher end of the lever type compression bar is always kept in contact with a corresponding left pressing block or right pressing block, the left pressing block or right pressing block generates downward force on the lever type compression bar, the lower end of the lever type compression bar is provided with an elastic cylindrical roller capable of freely rotating, and the elastic cylindrical roller is matched with the driving roller to form clamping force on the medium to be cut.
2. The automatic deviation rectifying mechanism according to claim 1, wherein the number of the left detecting units is the same as the number of the right detecting units.
3. An automatic deviation rectifying method based on the automatic deviation rectifying mechanism of claim 1, characterized by comprising the following steps:
step 1, driving a left pressing block shaft and a right pressing block shaft, driving a left pressing roller mechanism to act by the left pressing block shaft and the left pressing block, and driving a right pressing roller mechanism to act by the right pressing block shaft and the right pressing block, so that gaps are formed between the left pressing roller mechanism and a driving roller and between the right pressing roller mechanism and the driving roller, and a medium to be cut penetrates through the gaps from the space between the left pressing roller mechanism and the driving roller and between the right pressing roller mechanism and the driving roller;
step 2, driving a left pressing block shaft and a right pressing block shaft, driving a left pressing roller mechanism to act by the left pressing block shaft and the left pressing block, and driving a right pressing roller mechanism to act by the right pressing block shaft and the right pressing block, so that the left pressing roller mechanism is matched with a driving roller to form clamping force on a medium to be cut, and meanwhile, the right pressing roller mechanism is matched with the driving roller to form clamping force on the medium to be cut;
step 3, the driving roller transmits the medium to be cut to the cutting mechanism;
step 4, in the transmission process, if the left detection assembly and the right detection assembly simultaneously detect the same marker on the medium to be cut, the medium to be cut is not deviated, the step 3 is returned, if the left detection assembly detects the same marker on the medium to be cut before the right detection assembly, the medium to be cut is judged to be deviated rightwards, the step 5 is carried out, if the right detection assembly detects the same marker on the medium to be cut before the left detection assembly, the medium to be cut is judged to be deviated leftwards, and the step 6 is carried out;
step 5, obtaining deviation amount according to the time difference by the control unit, driving the left pressing block shaft and the right pressing block shaft according to the deviation amount, driving the left pressing roller mechanism to act by the left pressing block shaft and the left pressing block, so that the clamping force of the left pressing roller mechanism and the driving roller to the medium to be cut is reduced, and simultaneously driving the right pressing roller mechanism group to act by the right pressing block shaft and the right pressing block, so that the clamping force of the right pressing roller mechanism group and the driving roller to the medium to be cut is increased, and returning to the step 4;
and 6, obtaining deviation amount according to the time difference by the control unit, driving the left pressing block shaft and the right pressing block shaft according to the deviation amount, driving the left pressing roller mechanism to act by the left pressing block shaft and the left pressing block, so that the clamping force of the left pressing roller mechanism and the driving roller on the medium to be cut is increased, driving the right pressing roller mechanism to act by the right pressing block shaft and the right pressing block, so that the clamping force of the right pressing roller mechanism and the driving roller on the medium to be cut is reduced, and returning to the step 4.
4. The automatic deviation rectifying method according to claim 3, wherein the method for increasing and adjusting the clamping force by using the automatic deviation rectifying mechanism according to claim 3 comprises the following steps:
and controlling the left press block shaft to rotate a certain angle towards the small diameter direction of the left press block cam profile, or controlling the right press block shaft to rotate a certain angle towards the small diameter direction of the right press block cam profile.
5. The automatic deviation rectifying method according to claim 3, wherein the method for realizing the clamping force reduction adjustment by using the automatic deviation rectifying mechanism according to claim 3 comprises the following steps:
and controlling the left press block shaft to rotate a certain angle towards the large diameter direction of the left press block cam profile, or controlling the right press block shaft to rotate a certain angle towards the large diameter direction of the right press block cam profile.
CN201811121964.6A 2018-09-26 2018-09-26 Automatic deviation rectifying mechanism and method Active CN109292491B (en)

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Application Number Priority Date Filing Date Title
CN201811121964.6A CN109292491B (en) 2018-09-26 2018-09-26 Automatic deviation rectifying mechanism and method

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Application Number Priority Date Filing Date Title
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CN109292491B true CN109292491B (en) 2021-02-05

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60167841A (en) * 1984-02-09 1985-08-31 Fuji Xerox Co Ltd Paper skew correcting device
JPH0867377A (en) * 1994-08-31 1996-03-12 Fujitsu Ltd Paper sheet carrying device
JPH10109789A (en) * 1996-10-01 1998-04-28 Mita Ind Co Ltd Paper sheet conveying device

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Effective date of registration: 20211228

Address after: 334202 Xiangtun Ecological Industrial Park B05-02, Dexing high tech Industrial Park, Shangrao City, Jiangxi Province

Patentee after: Jiangxi Dele Intelligent Technology Co.,Ltd.

Address before: 200050 No. 1882, Changning District, Shanghai, West Yan'an Road

Patentee before: DONGHUA University