CN112875370A - Joint processing mechanism and control method thereof - Google Patents

Joint processing mechanism and control method thereof Download PDF

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Publication number
CN112875370A
CN112875370A CN202110059264.4A CN202110059264A CN112875370A CN 112875370 A CN112875370 A CN 112875370A CN 202110059264 A CN202110059264 A CN 202110059264A CN 112875370 A CN112875370 A CN 112875370A
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CN
China
Prior art keywords
joint
driving roller
die cutting
detection signal
paper tape
Prior art date
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Withdrawn
Application number
CN202110059264.4A
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Chinese (zh)
Inventor
王培学
王培玉
黄晓佳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shantou Dongfeng Printing Co Ltd
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Shantou Dongfeng Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Shantou Dongfeng Printing Co Ltd filed Critical Shantou Dongfeng Printing Co Ltd
Priority to CN202110059264.4A priority Critical patent/CN112875370A/en
Publication of CN112875370A publication Critical patent/CN112875370A/en
Withdrawn legal-status Critical Current

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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
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
    • B65H19/1826—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll
    • B65H19/1836—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll the replacement web being accelerated or running prior to splicing contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/20—Cutting-off the expiring web
    • 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
    • B65H2701/11—Dimensional aspect of article or web
    • B65H2701/113—Size
    • B65H2701/1133—Size of webs

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  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

The invention relates to the technical field of printing equipment and discloses a joint processing mechanism and a control method thereof, wherein the joint processing mechanism comprises a separation driving roller and a control device, wherein the separation driving roller is used for conveying a paper tape processed by a die cutting platform; one end of the joint separation plate is butted with the separation driving roller, and the other end of the joint separation plate is provided with a rotating shaft; the driving mechanism is used for driving the joint separating plate to rotate around the rotating shaft, so that an opening is formed between the joint separating plate and the separating driving roller; the joint detection device is used for acquiring a first detection signal that the head of the paper tape joint reaches the paper feeding driving roller and a second detection signal that the head of the paper tape joint reaches the separating driving roller; and the control device is electrically connected with the driving mechanism, the joint detection device and the die cutting platform, controls the die cutting platform to stop running according to the first detection signal, and controls the driving mechanism to work according to the second detection signal so that the joint of the paper tape runs downwards from the opening. The invention collects the paper tape joints, and avoids abnormal shutdown caused by the fact that the joint adhesive tape sticks to the die cutting knife in die cutting.

Description

Joint processing mechanism and control method thereof
Technical Field
The invention relates to the technical field of printing equipment, in particular to a joint processing mechanism and a control method thereof.
Background
With the development of society, the profit of the printing industry is reduced, and the demand for small-lot and multi-variety printing is increased. The intelligent manufacturing is combined, the production cost is reduced, the production efficiency is improved, and the process is combined to be the necessary choice for printing enterprises. For example, cigarette packet printing, roll paper printing rolling, roll paper unevenness, die cutting, quality control are integrative to be inevitable selection, have not only improved production efficiency, have saved the material, have also reduced staff's amount of labour and staff quantity simultaneously. For web printing, high speed platen die cutting of web is the preferred method because the plate making cost is lower than that of the circular die cutting method. However, in the double-station paper supply without stopping, the joints of the paper rolls need to be connected by adhesive tapes, and the adhesive tapes often stick to the die-cutting knife during die cutting, so that abnormal stopping is caused, and normal production is influenced. Thus, there is a need for an apparatus for handling splices of paper rolls.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a joint processing mechanism and a control method thereof, so as to solve the problem that the tape at the joint of the tape is easy to stick to the die cutting blade in the conventional die cutting, which causes abnormal shutdown.
In order to achieve the purpose, the invention adopts the following technical scheme:
one aspect of the present invention provides a joint processing mechanism for processing joints of a paper tape conveyed to a die cutting table by a paper feed driving roller, the joint processing mechanism including:
the separating driving roller is used for conveying the paper tape processed by the die cutting platform;
one end of the joint separation plate is butted with the separation driving roller, and the other end of the joint separation plate is provided with a rotating shaft;
the driving mechanism is used for driving the joint separation plate to rotate around the rotating shaft, so that an opening is formed between the joint separation plate and the separation driving roller;
the joint detection device is used for acquiring a first detection signal that the head of the paper tape joint reaches the paper feeding driving roller and a second detection signal that the head of the paper tape joint reaches the separating driving roller;
and the control device is electrically connected with the driving mechanism, the joint detection device and the die cutting platform so as to receive a detection signal of the joint detection device, control the die cutting platform to stop running according to the first detection signal and control the driving mechanism to work according to the second detection signal, so that the joint of the paper tape runs downwards from the opening.
Preferably, the joint detection device is further used for acquiring a third detection signal that the tail part of the paper tape joint leaves the die cutting platform and a fourth detection signal that the tail part of the paper tape joint reaches the separation driving roller; and the control device controls the die cutting platform to be pressed to work according to the third detection signal, and controls the driving mechanism to work according to the fourth detection signal, so that the joint separation plate returns to the position where the separation driving roller is butted.
Preferably, the joint detection device comprises a tape detection device and a first encoder which are arranged at the paper feeding driving roller, and the tape detection device is electrically connected with the control device to acquire the first detection signal; the first encoder is coaxially installed in the paper feed driving roller to acquire the second detection signal.
Preferably, the first encoder is further configured to acquire the third detection signal; the joint detection device further includes a second encoder coaxially installed in the separation driving roller to acquire the fourth detection signal.
Preferably, the joint processing mechanism further comprises a color code detection device arranged at the paper feeding driving roller, and the color code detection device is electrically connected with the control device to detect a die cutting color code of the paper tape transmitted to the paper feeding driving roller.
Preferably, the joint processing mechanism further comprises a joint pressure detection device for acquiring a joint pressure ending signal of the die cutting platform for processing the paper tape, and the controller controls the rotation speed of the separation driving roller according to the joint pressure ending signal.
Preferably, actuating mechanism is including driving actuating cylinder and cylinder base, cylinder base set up in the below that connects the stripper plate, the one end that drives actuating cylinder is installed on the cylinder base, the other end that drives actuating cylinder with the lower surface that connects the stripper plate is inconsistent.
Another aspect of the present invention is to provide a method of controlling the joint processing mechanism as described above, including the steps of:
step S1, acquiring a first detection signal when the head of the paper tape joint reaches the paper feeding driving roller, and controlling the die cutting platform to stop running according to the first detection signal;
step S2, acquiring a second detection signal when the head of the paper tape joint reaches the separation driving roller, controlling the driving mechanism to work according to the second detection signal, and driving the joint separation plate to rotate so as to form an opening between the joint separation plate and the separation driving roller;
in step S3, the ribbon joint transported by the separation driving roller travels downward from the opening to collect the ribbon joint.
Preferably, the control method further includes:
step S4, acquiring a third detection signal that the tail part of the paper tape joint leaves the die cutting platform, controlling the die cutting platform to close and press according to the third detection signal, and performing die cutting processing on the paper tape;
step S5, acquiring a joint pressure ending signal of the die cutting platform for processing the paper tape, and controlling the separation driving roller to run up according to the joint pressure ending signal so that the paper tape joint completely enters the opening;
and step S6, acquiring a fourth detection signal that the tail of the paper tape joint reaches the separation driving roller, and controlling the joint separation plate to rotate according to the fourth detection signal, so that the joint separation plate returns to the position butted with the separation driving roller.
Preferably, the step of controlling the die-cutting platform to close and press according to the third detection signal further includes, before the step of performing the die-cutting process on the paper tape:
detecting a die cutting color code of the paper tape transmitted to the paper feeding driving roller by using a color code detection device;
when the die cutting color marks are detected, the control device is used for controlling the die cutting platform to start, and the paper tape is subjected to die cutting.
Compared with the prior art, the joint processing mechanism and the control method thereof have the advantages that:
according to the joint processing mechanism provided by the embodiment of the invention, the running position of the paper tape joint is detected through the joint detection device, and the movement of the joint separation plate is controlled according to the running position of the paper tape joint, so that an opening is formed between the joint separation plate and the separation driving roller, and the paper tape joint runs downwards from the opening, and the paper tape joint is convenient to collect, so that the abnormal shutdown caused by the fact that an adhesive tape at the joint is easy to stick to a die cutting knife in die cutting is avoided.
According to the control method of the joint processing mechanism, the movement of the joint separating plate is controlled according to the detection signal of the joint detection device, an opening is formed between the joint separating plate and the separating driving roller, so that the paper tape joint moves downwards from the opening, the paper tape joint is convenient to collect, and abnormal halt caused by the fact that an adhesive tape at the joint is easy to stick to a die cutting knife in die cutting can be avoided.
Drawings
FIG. 1 is a schematic structural view of a joint handling mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of an application of a joint handling mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a method of controlling the joint processing mechanism according to an embodiment of the present invention;
in the figure, 1, the driving roller is separated; 11. separating the compression roller; 2. a joint separation plate; 21. a rotating shaft; 31. a driving cylinder; 32. a cylinder base; 41. a tape detection device; 42. a first encoder; 43. a second encoder; 5. a paper feed driving roller; 51. a paper feeding compression roller; 61. die cutting the upper platform; 62. die cutting the lower platform; 63. a die cutting platform drive; 631. a third encoder; 7. a color code detection device; 81. a driving roller; 82. a transfer belt; 9. a paper strap; 101. a first joint plate; 102. a second joint plate.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The joint processing mechanism is used for processing the joints of the paper tape 9 which is transmitted to the die cutting platform through the paper feeding driving roller 5, so that abnormal shutdown caused by the fact that an adhesive tape on the joints of the paper tape sticks a cutter of the die cutting platform is avoided. The paper tape 9 is conveyed to a die cutting platform through the paper feeding driving roller 5, the die cutting platform comprises a die cutting upper platform 61 and a die cutting lower platform 62, the die cutting treatment is carried out on the paper tape 9 through the combined pressure of the die cutting upper platform 61 and the die cutting lower platform 62, and the paper tape 9 subjected to the die cutting treatment is conveyed to the subsequent procedures for further treatment. Wherein, a paper feeding compression roller 51 is arranged above the paper feeding driving roller 5 to press the paper tape 9, so as to ensure that the paper tape 9 can synchronously run along with the paper feeding driving roller 5.
As shown in fig. 1, a joint processing mechanism according to a preferred embodiment of the present invention includes: the device comprises a separating driving roller 1, a joint separating plate 2, a driving mechanism, a joint detecting device and a control device, wherein the separating driving roller 1 is used for conveying a paper tape 9 processed by a die cutting platform, and preferably, a separating pressing roller 11 is further arranged above the separating driving roller 1 so that the paper tape 9 can synchronously run along with the separating driving roller 1; one end of the joint separation plate 2 is butted with the separation driving roller 1, the other end of the joint separation plate 2 is provided with a rotating shaft 21, and the joint separation plate 2 can rotate around the rotating shaft 21, so that the joint separation plate 2 and the separation driving roller 1 are not in a butted state any more, and an opening is formed between the end part of the joint separation plate 2 and the separation driving roller 1; the driving mechanism is used for driving the joint separation plate 2 to rotate around the rotating shaft 21, so that an opening is formed between the joint separation plate 2 and the separation driving roller 1; the joint detection device is used for acquiring a first detection signal that the head of the paper tape joint reaches the paper feeding driving roller 5 and a second detection signal that the head of the paper tape joint reaches the separating driving roller 1; the control device is electrically connected with the driving mechanism, the joint detection device and the die cutting platform to receive a detection signal of the joint detection device, control the die cutting platform to stop running according to the first detection signal and control the driving mechanism to work according to the second detection signal, so that the joint of the paper tape 9 runs downwards from the opening.
The control device obtains the running position of the paper tape joint according to the detection signal of the joint detection device, the driving mechanism is controlled to work, and the driving mechanism controls the joint separation plate 2 to rotate, so that an opening is formed between the joint separation plate 2 and the separation driving roller 1, or the joint separation plate 2 is in butt joint with the separation driving roller 1. According to the state of the joint separation plate 2, the paper tape joints transmitted by the separation driving roller 1 can be conveyed downwards through the opening, so that the collection of the paper tape joints is facilitated, and the paper tape 9 which is normally die-cut and transmitted by the separation driving roller 1 can be transmitted to a subsequent process through the joint separation plate 2, the conveying belt and the driving roller 81, so that the further treatment of the paper tape 9 is facilitated.
According to the invention, the running position of the paper tape joint is detected by the joint detection device, and the movement of the joint separation plate 2 is controlled according to the running position of the paper tape joint, so that an opening is formed between the joint separation plate 2 and the separation driving roller 1, and the paper tape joint runs downwards from the opening, so that the paper tape joint is convenient to collect, and thus, the abnormal shutdown caused by the fact that an adhesive tape at the joint is easy to stick to a die cutting rule in die cutting is avoided.
Preferably, the joint detection device is further used for acquiring a third detection signal that the tail part of the paper tape joint leaves the die cutting platform and a fourth detection signal that the tail part of the paper tape joint reaches the separation driving roller 1; the control device controls the die cutting platform to close and press according to the third detection signal so as to perform normal die cutting processing on the paper tape 9; and controlling the driving mechanism to work according to the fourth detection signal, so that the joint separation plate 2 returns to the position where the separation driving roller 1 is butted, and a product obtained by die cutting treatment is conveniently and normally transported to a subsequent process through the joint separation plate 2 for further treatment.
Preferably, the joint detection device includes a tape detection device 41 and a first encoder 42 disposed at the paper feeding driving roller 5, and the tape detection device 41 is electrically connected to the control device to detect a joint tape of the paper tape 9 conveyed to the paper feeding driving roller 5, so as to obtain the first detection signal. And the control device controls the die cutting platform to stop running according to the first detection signal, so that the paper tape 9 with the joint does not undergo die cutting treatment when passing through the die cutting platform, and the joint treatment mechanism can conveniently treat the joint of the paper tape. Preferably, the tape detection device 41 is a tape detection sensor. The first encoder 42 is coaxially installed in the paper feed driving roller 5 to acquire the second detection signal. Preferably, the first encoder 42 is a counting encoder. Since the distance from the paper feeding driving roller 5 to the die cutting platform is determined and the distance from the die cutting platform to the separating driving roller 1 is determined, the first encoder 42 can acquire a second detection signal that the head of the paper tape joint reaches the separating driving roller 1. Further, a third detection signal that the tail of the ribbon joint leaves the die cutting platform can be obtained by the first encoder 42.
Further, the joint detection device further includes a second encoder 43, and the second encoder 43 is coaxially installed in the separation driving roller 1 to acquire the fourth detection signal. Preferably, the second encoder 43 is a counting encoder. The count of the count encoder is calculated by a control device to acquire a fourth detection signal. Since the distance from the die cutting platform to the separating drive roller 1 is determined, the fourth detection signal that the tail of the tape tab reaches the separating drive roller 1 can be obtained by the second encoder 43.
Preferably, the joint processing mechanism further comprises a color code detection device 7 arranged at the paper feeding driving roller 5, and the color code detection device 7 is electrically connected with the control device to detect a die cutting color code of the paper tape 9 transmitted to the paper feeding driving roller 5. The control device is also used for receiving the detection signal of the color code detection device 7 so as to obtain the signal transmitted from the die cutting color code to the paper feeding driving roller 5, thereby facilitating the control of the die cutting platform to carry out normal die cutting processing on the paper tape 9. Preferably, the color patch detecting device 7 is a color patch detecting sensor. Further, the joint processing mechanism further comprises a pressing detection device for acquiring a pressing ending signal of the die cutting platform for processing the paper tape 9, and the control device controls the rotating speed of the separation driving roller 1 according to the pressing ending signal. When the closing pressure detection device detects that the closing pressure of the die cutting platform is finished, the controller controls the separation driving roller 1 to run in an accelerated mode, so that the paper tape joint is conveyed downwards from the opening in an accelerated mode. Preferably, the pressing detection device is a third encoder 631 disposed in the die cutting platform driving device 63. Further, the third encoder 631 is a count encoder.
Further, the control device is electrically connected with a die cutting platform driving device 63, and the control device controls the working state of the driving device of the die cutting platform according to the detection signal of the adhesive tape detection device 41 and the detection signal of the color code detection device 7, so that the die cutting upper platform 61 and the die cutting lower platform 62 are in a separation or pressing state. Specifically, when the adhesive tape detection device 41 detects that the paper tape joint is transmitted to the paper feeding driving roller 5, the control device controls the driving device of the die cutting platform to work, so that the die cutting upper platform 61 and the die cutting lower platform 62 are in a separated state, the paper tape 9 with the joint passes through the die cutting platform without die cutting, the paper tape 9 with the joint enters the joint processing mechanism for joint processing, the paper tape joint runs downwards through an opening between the joint separation plate 2 and the separation driving roller 1, and the paper tape joint is collected. When the color code detection device 7 detects the die cutting color code of the paper tape 9, the control device controls the driving device of the die cutting platform to work, so that the die cutting upper platform 61 and the die cutting lower platform 62 enter a normal die cutting working mode, and the paper tape 9 is subjected to die combination and die cutting processing.
In an alternative embodiment, the driving mechanism includes a driving cylinder 31 and a cylinder base 32, the cylinder base 32 is disposed below the joint separation plate 2, one end of the driving cylinder 31 is mounted on the cylinder base 32, the other end of the driving cylinder 31 abuts against the lower surface of the joint separation plate 2, and the driving cylinder 31 drives the joint separation plate 2 to rotate. Wherein, the other end of the driving cylinder 31 may abut against the middle portion of the joint separating plate 2 or the end where the rotating shaft 21 is not installed.
In the present invention, the structure of the driving mechanism is not limited to the structure of the driving cylinder 31, and may be other driving types, as long as the joint separating plate 2 can be driven to rotate around the rotating shaft 21.
In an optional embodiment, the joint processing mechanism further comprises a joint collecting device, and the joint collecting device is arranged below the opening and is used for facilitating centralized processing of the paper tape joints.
Optionally, the joint collecting device comprises a first joint plate 101 and a second joint plate 102, one side of the first joint plate 101 is abutted with the separation driving roller 1, the other side is fixed with the second joint plate 102, and the first joint plate 101 is inclined downwards so that the paper tape joint can run downwards through the opening; the second joint plate 102 is angled, preferably at an acute angle, with respect to the first joint plate 101, so as to facilitate collection of the tape joint at the intersection of the first joint plate 101 and the second joint plate 102.
In the present invention, the structure of the joint collecting device is not limited to the structure of the first joint plate 101 and the second joint plate 102, and may be a cylindrical or square cylindrical structure, and the joint collecting device is placed below the opening to collect the tape joint.
As shown in fig. 3, the method for controlling a joint processing mechanism according to the embodiment of the present invention includes the following steps:
step S1, acquiring a first detection signal that the head of the paper tape joint reaches the paper feeding driving roller 5, and controlling the die cutting platform to stop running according to the first detection signal;
step S2, acquiring a second detection signal that the head of the paper tape joint reaches the separation driving roller 1, controlling the driving mechanism to work according to the second detection signal, and driving the joint separation plate 2 to rotate so as to form an opening between the joint separation plate 2 and the separation driving roller 1;
in step S3, the ribbon joint conveyed by the separation driving roller 1 runs downward from the opening to collect the ribbon joint.
According to the control method of the joint processing mechanism, the movement of the joint separating plate 2 is controlled according to the detection signal of the joint detection device, an opening is formed between the joint separating plate 2 and the separating driving roller 1, so that the paper tape joint moves downwards from the opening, the paper tape joint is convenient to collect, and abnormal halt caused by the fact that an adhesive tape at the joint is easy to stick to a die cutting rule in die cutting can be avoided.
Preferably, the control method further includes:
step S4, acquiring a third detection signal that the tail part of the paper tape joint leaves the die cutting platform, controlling the die cutting platform to close and press according to the third detection signal, and performing die cutting processing on the paper tape 9;
step S5, acquiring a joint pressure ending signal of the die cutting platform for processing the paper tape 9, and controlling the separation driving roller 1 to run at an accelerated speed according to the joint pressure ending signal so that the paper tape joint completely enters the opening;
and step S6, acquiring a fourth detection signal that the tail part of the paper tape joint reaches the separation driving roller 1, and controlling the joint separation plate 2 to rotate according to the fourth detection signal, so that the joint separation plate 2 returns to a position butted with the separation driving roller 1, and the paper tape 9 subjected to normal die cutting processing is not influenced to be transmitted to a subsequent process for further processing.
Preferably, the step S1 includes detecting the joint tape of the paper tape 9 conveyed to the paper feed driving roller 5 by the tape detecting device 41 to obtain the first detection signal.
When the adhesive tape with the joints is detected, the control device is used for controlling the die cutting platform to stop die cutting work on the paper tape 9, so that the paper tape 9 with the joints can directly enter the joint processing mechanism to be subjected to joint processing without die cutting processing when passing through the die cutting platform.
Preferably, the step of controlling the die-cutting platform to close and press according to the third detection signal further includes, before the step of performing the die-cutting process on the paper tape 9, the following steps:
detecting a die cutting color code of the paper tape 9 conveyed to the paper feeding driving roller 5 by using a color code detection device 7;
when the die cutting color marks are detected, the control device is used for controlling the die cutting platform to be started to perform die cutting work on the paper tape 9, so that normal die cutting processing on the paper tape 9 without joints is not influenced under the condition of no work.
The working process of the invention is as follows:
the paper tape 9 passes through the paper feed driving roller 5 and runs synchronously with the paper feed driving roller 5. When the paper tape 9 with the joint passes through the paper feeding driving roller 5, the adhesive tape detection sensor detects the adhesive tape and sends a first detection signal to the control device, and the control device controls the driving device of the die cutting platform to stop running, so that the die cutting upper platform 61 and the die cutting lower platform 62 are in a pressure release state and do not perform die cutting work any more. And simultaneously, the control device starts to calculate the count of the first encoder 42 coaxially arranged on the paper feeding driving roller 5, when the head of the paper tape joint reaches the separation driving roller 1, the control device controls the driving air cylinder 31 to work, the joint separation plate 2 is driven to rotate around the rotating shaft 21 through the driving air cylinder 31 to be lifted upwards, an opening is formed between the joint separation plate 2 and the separation driving roller 1, and the paper tape 9 with the joint is enabled to run downwards through the opening to enter the joint collecting device for collection. The control device calculates the time that the tail part of the paper tape joint leaves the die cutting platform through the first encoder 42, when the control device calculates that the paper tape joint leaves the die cutting platform, the color code detection sensor detects the die cutting color code of the paper tape 9, and when the control device detects that the die cutting color code reaches the paper feeding driving roller 5, the control device controls the die cutting platform to work and enter a normal die cutting mode. When the pressing of the die cutting upper platform 61 and the die cutting lower platform 62 is finished, the control device controls the separation driving roller 1 to run up, so that the paper tape 9 with the joint quickly enters the joint collecting device through the opening. When the signal indicating that the tail of the paper tape joint reaches the separating driving roller 1 is obtained through counting by the second encoder 43, the joint completely enters the joint device, the control device controls the driving cylinder 31 to return to the original position, so that the joint separating plate 2 and the separating driving roller 1 are in a butt joint state, the paper tape 9 subjected to the die cutting treatment is transmitted to the driving roller 81 through the separating driving roller 1 and the joint separating plate 2, and is further transmitted to a subsequent process through the driving roller 81 and the transmission belt 82 for further treatment.
In summary, the embodiment of the present invention provides a joint processing mechanism and a control method thereof, which detect an operation position of a paper tape joint through a joint detection device, and control a movement of a joint separation plate 2 according to the operation position of the paper tape joint, so that an opening is formed between the joint separation plate 2 and a separation driving roller 1, and the paper tape joint moves downward from the opening, which is convenient for collecting the paper tape joint, thereby preventing an adhesive tape at the joint from easily sticking a die cutting knife during die cutting to cause abnormal shutdown.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (10)

1. A joint processing mechanism for processing joints of a paper tape conveyed to a die cutting platform by a paper feed driving roller, the joint processing mechanism comprising:
the separating driving roller is used for conveying the paper tape processed by the die cutting platform;
one end of the joint separation plate is butted with the separation driving roller, and the other end of the joint separation plate is provided with a rotating shaft;
the driving mechanism is used for driving the joint separation plate to rotate around the rotating shaft, so that an opening is formed between the joint separation plate and the separation driving roller;
the joint detection device is used for acquiring a first detection signal that the head of the paper tape joint reaches the paper feeding driving roller and a second detection signal that the head of the paper tape joint reaches the separating driving roller;
and the control device is electrically connected with the driving mechanism, the joint detection device and the die cutting platform so as to receive a detection signal of the joint detection device, control the die cutting platform to stop running according to the first detection signal and control the driving mechanism to work according to the second detection signal, so that the joint of the paper tape runs downwards from the opening.
2. The splice handling mechanism of claim 1, wherein the splice detection device is further configured to acquire a third detection signal that the tail of the splice of the web exits the die cutting station and a fourth detection signal that the tail of the splice of the web reaches the separation drive roller; and the control device controls the die cutting platform to be pressed to work according to the third detection signal, and controls the driving mechanism to work according to the fourth detection signal, so that the joint separation plate returns to the position where the separation driving roller is butted.
3. The joint processing mechanism according to claim 2, wherein the joint detection means includes a tape detection means and a first encoder provided at the paper feed driving roller, the tape detection means being electrically connected to the control means to acquire the first detection signal; the first encoder is coaxially installed in the paper feed driving roller to acquire the second detection signal.
4. The splice processing mechanism of claim 3, wherein the first encoder is further configured to acquire the third detection signal; the joint detection device further includes a second encoder coaxially installed in the separation driving roller to acquire the fourth detection signal.
5. The joint processing mechanism according to claim 1, further comprising a color patch detecting device provided at the paper feed driving roller, the color patch detecting device being electrically connected to the control device to detect a die-cut color patch of the paper tape conveyed to the paper feed driving roller.
6. The joint processing mechanism according to claim 5, further comprising a joint pressure detection device for obtaining a joint pressure end signal of the die cutting platform for processing the paper tape, wherein the controller controls the rotation speed of the separation driving roller according to the joint pressure end signal.
7. The joint processing mechanism according to claim 1, wherein the driving mechanism comprises a driving cylinder and a cylinder base, the cylinder base is disposed below the joint separating plate, one end of the driving cylinder is mounted on the cylinder base, and the other end of the driving cylinder abuts against a lower surface of the joint separating plate.
8. A method of controlling a joint treatment mechanism according to any one of claims 1 to 7, comprising the steps of:
step S1, acquiring a first detection signal when the head of the paper tape joint reaches the paper feeding driving roller, and controlling the die cutting platform to stop running according to the first detection signal;
step S2, acquiring a second detection signal when the head of the paper tape joint reaches the separation driving roller, controlling the driving mechanism to work according to the second detection signal, and driving the joint separation plate to rotate so as to form an opening between the joint separation plate and the separation driving roller;
in step S3, the ribbon joint transported by the separation driving roller travels downward from the opening to collect the ribbon joint.
9. The control method according to claim 8, characterized by further comprising:
step S4, acquiring a third detection signal that the tail part of the paper tape joint leaves the die cutting platform, controlling the die cutting platform to close and press according to the third detection signal, and performing die cutting processing on the paper tape;
step S5, acquiring a joint pressure ending signal of the die cutting platform for processing the paper tape, and controlling the separation driving roller to run up according to the joint pressure ending signal so that the paper tape joint completely enters the opening;
and step S6, acquiring a fourth detection signal that the tail of the paper tape joint reaches the separation driving roller, and controlling the joint separation plate to rotate according to the fourth detection signal, so that the joint separation plate returns to the position butted with the separation driving roller.
10. The method as claimed in claim 9, wherein the step of controlling the die-cutting platform to work in combination according to the third detection signal, and before the step of performing the die-cutting process on the paper tape, further comprises:
detecting a die cutting color code of the paper tape transmitted to the paper feeding driving roller by using a color code detection device;
when the die cutting color marks are detected, the control device is used for controlling the die cutting platform to start, and the paper tape is subjected to die cutting.
CN202110059264.4A 2021-01-15 2021-01-15 Joint processing mechanism and control method thereof Withdrawn CN112875370A (en)

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