CN220563932U - Automatic deviation correcting and conveying device of offset press - Google Patents

Automatic deviation correcting and conveying device of offset press Download PDF

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Publication number
CN220563932U
CN220563932U CN202321911952.XU CN202321911952U CN220563932U CN 220563932 U CN220563932 U CN 220563932U CN 202321911952 U CN202321911952 U CN 202321911952U CN 220563932 U CN220563932 U CN 220563932U
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China
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deviation rectifying
paper
cylinder
conveyor belt
deviation
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CN202321911952.XU
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丁运
蔡建杰
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Jiangsu Ruyu Machinery Manufacturing Co ltd
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Jiangsu Ruyu Machinery Manufacturing Co ltd
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Abstract

The utility model discloses an automatic deviation rectifying and conveying device of an offset press, which comprises a base and a top seat, wherein a deviation rectifying mechanism for rectifying paper is arranged on the base, a main conveying belt for conveying the paper is arranged on the deviation rectifying mechanism, a return mechanism for returning the paper to carry out secondary deviation rectifying is arranged on the top seat, and a paper receiving mechanism for receiving the paper is arranged on one side of the deviation rectifying mechanism outputting the paper; the utility model has simple structure and reasonable design, changes the deviation rectifying mode of paper from using the deflection and extrusion of the roller to changing the radius of the inner arc and the outer arc of the main conveyor belt to the bending main conveyor belt to realize deviation rectifying, reduces the production cost and the later use cost of the deviation rectifying device, improves the deviation rectifying efficiency, simultaneously realizes the secondary deviation rectifying of the paper which is not completely rectified and is sent back to the initial end of the deviation rectifying mechanism, further expands the deviation rectifying range of the deviation rectifying mechanism and improves the deviation rectifying accuracy.

Description

Automatic deviation correcting and conveying device of offset press
Technical Field
The utility model relates to the technical field of offset press equipment, in particular to an automatic deviation correcting and conveying device of an offset press.
Background
Offset presses are widely used in printing industry, and are used for printing of various books, magazines, packages and advertisements, and in the actual operation process, the offset presses need to ensure the accurate position of the printing paper in the conveying process so as to ensure the printing quality and efficiency, however, due to various reasons including uneven distribution of mechanical vibration and friction force, abrasion of a conveying belt, tiny deviation of mechanical equipment and the like, the position deviation of the printing paper in the conveying process, namely a so-called "deviation" phenomenon, can influence the printing quality, can possibly cause damage of the printing equipment, and reduces the production efficiency, so that deviation correcting devices are arranged in many offset presses so as to correct the deviation problem of the paper.
The prior art has the following defects:
at present, the traditional deviation correcting device mainly adopts a roller deflection and extrusion mode to correct, in the conveying process, if the position of paper deviates from a preset path, the deviation correcting device is started, the moving path of the paper is changed by controlling the rotation angle of the rollers or the distance between the rollers, so that the deviation correcting is realized, but the deviation correcting mode needs a plurality of rollers to be matched, so that the production cost and the later maintenance cost are higher, the whole conveying speed of the conveying device is required to be reduced when the deviation correcting is carried out, even part of the deviation correcting machine also needs to stop the conveying device to correct the deviation, otherwise, the deviation correcting accuracy is influenced, and the deviation correcting efficiency is lower.
Disclosure of Invention
The utility model aims to provide an automatic deviation correcting and conveying device of an offset press, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the automatic deviation correcting and conveying device for the offset press comprises a base and a top seat, wherein a deviation correcting mechanism for correcting paper is arranged on the base, a main conveying belt for conveying the paper is arranged on the deviation correcting mechanism, a return mechanism for returning the paper to carry out secondary deviation correction is arranged on the top seat, and a paper receiving mechanism for receiving the paper is arranged on one side of the deviation correcting mechanism, which outputs the paper;
the correcting mechanism comprises:
the support frames are symmetrically arranged on the upper end face of the base, mounting shafts are movably arranged between the support frames, a correction cylinder is arranged on the middle of each mounting shaft, and the correction cylinders are rotatably connected with the mounting shafts through bearings;
the auxiliary cylinders are arranged on the upper end face of the base through mounting frames, the auxiliary cylinders are symmetrically arranged on two sides of the deviation correcting cylinder, and the main conveyor belt is movably arranged in the sliding grooves on the deviation correcting cylinder and the auxiliary cylinders;
the first motor is arranged on the upper end face of the base, the output end of the first motor is connected with a screw rod, a U-shaped frame is arranged on a screw nut of the screw rod, and the top end of the U-shaped frame is connected with mounting shafts on two sides of the deviation correcting cylinder respectively.
Preferably, the return mechanism includes:
the telescopic rods are symmetrically arranged on one side of the lower end face of the top seat, the telescopic rods are positioned above the paper receiving mechanism, connecting blocks are arranged at the lower ends of the telescopic rods, a plurality of connecting rods are symmetrically arranged on one side, away from the telescopic rods, of the lower end face of the top seat, and the lower ends of the connecting blocks and the connecting rods are rotationally connected with a return cylinder;
a sub-conveyor belt provided in a groove on the return cylinder for return conveyance of the sheet;
the second motor is arranged on the lower end face of the top seat, and the output end of the second motor is connected with the rotating shaft of the return cylinder;
the guide cover is arranged on one side of the connecting block and one side of the connecting rod respectively, and the shape of the guide cover is matched with the radian of two ends of the auxiliary conveyor belt.
Preferably, the main conveyor belt is made of a rubber material.
Preferably, the shape and the size of the deviation rectifying cylinder are consistent with those of the auxiliary cylinder.
Preferably, a plurality of photoelectric sensors (the type of the photoelectric sensors is NT-RG 32) are arranged on the lower end face of the top seat.
Preferably, limiting plates are arranged at two ends of the mounting shaft and used for preventing the mounting shaft from falling off the supporting frame.
Compared with the prior art, the utility model has the beneficial effects that:
the automatic deviation correcting and conveying device for the offset press is provided with a deviation correcting mechanism, wherein the deviation correcting mechanism comprises a supporting frame, an installation shaft, a deviation correcting cylinder, an auxiliary cylinder, a first motor, a screw rod and a U-shaped frame, a deviation correcting mode of paper is changed from deflection and extrusion by using a roller to change the radius of an inner arc and an outer arc of a main conveying belt, so that deviation correction is realized, the required structure of the mode is simpler, the production cost of the deviation correcting device and the later use cost are reduced, the deviation correcting process can be carried out in the paper conveying process, the deviation correcting purpose can be achieved without reducing or stopping the main conveying belt, and the deviation correcting efficiency is improved;
this automatic conveyer that rectifies of offset press, through being provided with return mechanism, return mechanism is including telescopic link, connecting block, connecting rod, a return section of thick bamboo, vice conveyer belt, second motor and guide cover, has realized sending back the paper that does not rectify thoroughly and rectify the initiating terminal of mechanism and has rectified the secondary, has further enlarged the range of rectifying the mechanism, avoids appearing because paper offset angle is too big, once rectifies the incomplete condition, has also improved the accuracy of rectifying.
Drawings
FIG. 1 is an overall front view of the present utility model;
FIG. 2 is a schematic side view of the internal structure of the present utility model;
FIG. 3 is a top view of the deviation correcting mechanism of the present utility model;
FIG. 4 is a schematic diagram of the deviation correcting device of the present utility model;
fig. 5 is a schematic diagram of the return mechanism of the present utility model for paper guide capture.
In the figure: 1. a base; 2. a top base; 3. a deviation correcting mechanism; 301. a support frame; 302. a mounting shaft; 303. a correction cylinder; 304. an auxiliary cylinder; 305. a first motor; 306. a screw rod; 307. a U-shaped frame; 4. a main conveyor belt; 5. a return mechanism; 501. a telescopic rod; 502. a connecting block; 503. a connecting rod; 504. a return cylinder; 505. a secondary conveyor belt; 506. a second motor; 507. a guide cover; 6. a paper receiving mechanism; 7. a photoelectric sensor; 8. and a limiting disc.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.
Examples
Referring to fig. 1-5, the present utility model provides a technical solution for an automatic deviation correcting and conveying device for an offset press: an automatic deviation rectifying and conveying device of offset press comprises a base 1 and a top seat 2, wherein a deviation rectifying mechanism 3 for rectifying paper is arranged on the base 1, a main conveying belt 4 for conveying paper is arranged on the deviation rectifying mechanism 3, a return mechanism 5 for returning the paper to carry out secondary deviation rectifying is arranged on the top seat 2, a paper receiving mechanism 6 for receiving the paper is arranged on one side of the paper output by the deviation rectifying mechanism 3, one end of the main conveying belt 4, which is far away from the deviation rectifying mechanism 3, is connected with an external driving mechanism to provide power input, the deviation rectifying mechanism 3 comprises a supporting frame 301, an auxiliary cylinder 304 and a first motor 305, the supporting frames 301 are symmetrically and fixedly arranged on the upper end face of the base 1, a mounting shaft 302 is connected between the supporting frames 301 in a sliding manner through a hole, a deviation rectifying cylinder 303 is arranged on the middle of the mounting shaft 302, the deviation rectifying cylinder 303 is rotationally connected with the mounting shaft 302 through a mounting bearing, the auxiliary cylinder 304 is rotatably arranged on the upper end surface of the base 1 through a mounting frame, the auxiliary cylinder 304 is symmetrically arranged on two sides of the deviation rectifying cylinder 303, the main conveyor belt 4 is slidably connected in the sliding grooves on the deviation rectifying cylinder 303 and the auxiliary cylinder 304, the deviation rectifying cylinder 303 and the auxiliary cylinder 304 synchronously rotate along with the rotation of the main conveyor belt 4, the first motor 305 is arranged on the upper end surface of the base 1 through the mounting frame, the output end of the first motor 305 is connected with a screw rod 306, both ends of the screw rod 306 are respectively fixed with a bracket, the screw rod nut of the screw rod 306 is fixedly connected with a U-shaped frame 307, the top ends of the U-shaped frame 307 are respectively connected with mounting shafts 302 on two sides of the deviation rectifying cylinder 303, when the deviation of paper on the main conveyor belt 4 is detected to be corrected, the first motor 305 is started according to a control signal of an external controller, the first motor 305 drives the screw rod 306 to rotate a certain number of turns according to a designated direction, the deviation rectifying cylinder 303 is realized through the actions of the screw nut and the U-shaped frame 307, at the moment, the middle section of the main conveyor belt 4 positioned at the two auxiliary cylinders 304 is bent and stretched to a certain extent under the action of the deviation rectifying cylinder 303, the radius of the inner arc of the bent part of the main conveyor belt 4 is smaller, the radius of the outer arc is larger, when paper passes through the main conveyor belt 4, the moving speed of the part close to the inner arc is slower, and the moving speed of the part close to the outer arc is faster, so that the setting angle of the paper on the main conveyor belt 4 in the moving process is adjusted, the deviation rectifying aim is fulfilled, the deviation rectifying mechanism 3 converts the deviation rectifying mode of the paper into the radius of the inner arc and the outer arc of the main conveyor belt 4 from the roller deflection and extrusion, the deviation rectifying mode is simpler, the production cost of the deviation rectifying device and the later use cost are reduced, the deviation rectifying process can be performed in the paper transmission process, the deviation rectifying efficiency is improved without the need of the main conveyor belt 4 to be reduced or stopped, and the deviation rectifying aim is fulfilled.
The return mechanism 5 comprises a telescopic rod 501, a secondary conveyor belt 505, a second motor 506 and a guide cover 507, wherein the telescopic rod 501 is symmetrically arranged on one side of the lower end face of the top seat 2, the telescopic rod 501 is positioned above the paper receiving mechanism 6, the lower end of the telescopic rod 501 is welded with a connecting block 502, one side of the lower end face of the top seat 2, which is far away from the telescopic rod 501, is symmetrically provided with a plurality of connecting rods 503, the lower ends of the connecting blocks 502 and the connecting rods 503 are rotationally connected with a return cylinder 504, the secondary conveyor belt 505 is arranged in a groove on the return cylinder 504 and used for returning paper, the second motor 506 is arranged on the lower end face of the top seat 2 through a bracket, the output end of the second motor 506 is connected with a rotating shaft of the return cylinder 504, the guide cover 507 is respectively arranged on one side of the connecting blocks 502 and the connecting rods 503 and used for capturing paper requiring secondary deviation correction and releasing back, the shape of the guide cover 507 is matched with the radian of the two ends of the secondary conveyor belt 505, when the paper is corrected for the first time, the paper still does not need to be corrected for the second time, the telescopic rod 501 and the second motor 506 are started, the second motor 506 drives the auxiliary conveyor belt 505 to start rotating, the telescopic rod 501 drives the return cylinder 504 and the auxiliary conveyor belt 505 at the side to integrally descend through the connecting block 502 until the lowest end of the guide cover 507 can catch the paper to be dropped, the paper rises along with the guide cover 507 after falling onto the guide cover 507 until being caught by the auxiliary conveyor belt 505, then the paper moves along with the auxiliary conveyor belt 505 until the other end is caught again by the guide cover 507 at the position and is released onto the main conveyor belt 4 below again, the secondary correction is performed, the paper which is not corrected thoroughly is sent back to the initial end of the correction mechanism 3 for the second correction through the return mechanism 5, the correction range of the correction mechanism 3 is further widened, the deviation-correcting range of the paper is avoided, under the condition of incomplete correction at one time, the correction accuracy is improved.
The main conveyor belt 4 is made of a rubber material having good flexibility and tensile strength, capable of being bent when needed, and capable of being restored to an original state after the bending force is removed.
The shape and the size of the deviation rectifying cylinder 303 are consistent with those of the auxiliary cylinder 304, so that the main conveyor belt 4 can be always in a horizontal state, and stable friction force between paper and the upper surface of the main conveyor belt 4 is ensured.
A plurality of photoelectric sensors 7 are installed on the lower end face of the top seat 2 through a mounting bracket, when the photoelectric sensors 7 detect that paper is offset, offset signals are transmitted to an external controller through wires, and the external controller drives the main conveyor belt 4 to bend by controlling the moving direction and distance of the deviation correcting cylinder 303, so that deviation correction is performed.
The two ends of the installation shaft 302 are in threaded connection with limiting plates 8 for preventing the installation shaft 302 from falling off the supporting frame 301, so that accidents are avoided.
The working principle of the utility model is as follows:
when the automatic deviation correcting and conveying device of the offset press is used, the photoelectric sensor 7 detects that paper is deviated, deviation signals are transmitted to the external controller through wires, the external controller calculates the direction and distance of the main conveying belt 4 which needs to deviate, the first motor 305 is started according to the control signals of the external controller, the first motor 305 drives the screw rod 306 to rotate a certain circle number according to the appointed direction, then the deviation correcting cylinder 303 is deviated through the action of the screw nut and the U-shaped frame 307, at the moment, the main conveying belt 4 is positioned at the middle section of the two auxiliary cylinders 304 and is subjected to certain bending stretching under the action of the deviation correcting cylinder 303, the deviation correcting speed is different at the inner side and the outer side of the bending part of the main conveying belt 4, the purpose of paper deviation correcting is achieved, after the first deviation correcting of paper is finished, before the paper leaves, if the photoelectric sensor 7 detects that the paper is still not corrected, the secondary deviation correcting is needed, the telescopic rod 501 and the second motor 506 are started to drive the auxiliary conveying belt 505 to rotate according to the appointed direction, then the telescopic rod drives the auxiliary conveying belt 502 to drive the auxiliary conveying belt 504 to rotate, the auxiliary conveying belt 505 to drop down to the auxiliary conveying belt 507 to the second side through the auxiliary conveying belt 505, the auxiliary conveying belt 505 is guided by the auxiliary conveying belt 505 to the second side of the auxiliary conveying belt 507 to be completely drop down along with the auxiliary conveying belt 507, and the auxiliary conveying belt 505 is completely drops down along with the auxiliary conveying belt 507, and the auxiliary conveying belt 505 is guided by the auxiliary conveying belt 505, and the auxiliary conveying belt 505 is completely drops down along with the auxiliary conveying cover 505, and the auxiliary conveying belt 505 is completely drops is guided down and is completely and guided down along the auxiliary conveying cover 5 after the auxiliary conveying cover is completely and is completely lower down lower cover is guided down lower cover is lower cover 5; the utility model has simple structure and reasonable design, the deviation rectifying mode of paper is changed into the bending main conveyor belt 4 from the deflection and extrusion of the roller through the deviation rectifying mechanism 3 to change the radius of the inner arc and the outer arc of the main conveyor belt 4 to realize deviation rectifying, the required structure of the mode is simpler, the production cost of the deviation rectifying device and the later use cost are reduced, the deviation rectifying process can be carried out in the paper transmission process, the deviation rectifying purpose can be achieved without the need of decelerating or stopping the main conveyor belt 4, the deviation rectifying efficiency is improved, meanwhile, the secondary deviation rectifying of the paper which is not rectified thoroughly is sent back to the starting end of the deviation rectifying mechanism 3 through the return mechanism 5, the deviation rectifying range of the deviation rectifying mechanism 3 is further enlarged, the situation that the deviation rectifying angle of the paper is overlarge and the deviation rectifying is not thorough at one time is avoided, and the deviation rectifying accuracy is improved.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides an offset press automatic deviation correcting conveyer, includes base (1) and footstock (2), its characterized in that: the paper correction device is characterized in that a correction mechanism (3) for correcting paper is arranged on the base (1), a main conveyor belt (4) for conveying the paper is arranged on the correction mechanism (3), a return mechanism (5) for returning the paper to perform secondary correction is arranged on the top seat (2), and a paper receiving mechanism (6) for receiving the paper is arranged on one side of the correction mechanism (3) for outputting the paper;
the deviation rectifying mechanism (3) comprises:
the support frames (301), the support frames (301) are symmetrically arranged on the upper end face of the base (1), mounting shafts (302) are movably arranged between the support frames (301), deviation rectifying cylinders (303) are arranged on the mounting shafts (302) in the middle, and the deviation rectifying cylinders (303) are rotatably connected with the mounting shafts (302) through bearings;
the auxiliary cylinder (304) is arranged on the upper end face of the base (1) through a mounting frame, the auxiliary cylinders (304) are symmetrically arranged on two sides of the deviation rectifying cylinder (303), and the main conveyor belt (4) is movably arranged in the sliding grooves on the deviation rectifying cylinder (303) and the auxiliary cylinder (304);
the device comprises a first motor (305), wherein the first motor (305) is arranged on the upper end face of a base (1), the output end of the first motor (305) is connected with a screw rod (306), a U-shaped frame (307) is arranged on a screw rod nut of the screw rod (306), and the top ends of the U-shaped frames (307) are respectively connected with mounting shafts (302) on two sides of a deviation rectifying cylinder (303).
2. The automatic deviation rectifying and conveying device of the offset press according to claim 1, wherein: the return mechanism (5) comprises:
the telescopic rod (501), telescopic rod (501) symmetry sets up in one side of footstock (2) lower terminal surface, telescopic rod (501) are located the top of paper receiving mechanism (6), the lower extreme of telescopic rod (501) is provided with connecting block (502), the one side of keeping away from telescopic rod (501) on footstock (2) lower terminal surface symmetry is provided with a plurality of connecting rod (503), the lower extreme rotation of connecting block (502) and connecting rod (503) is connected with a return section of thick bamboo (504);
a secondary conveyor belt (505), the secondary conveyor belt (505) being disposed in a recess on the return cylinder (504) for return transport of the sheet;
the second motor (506) is arranged on the lower end face of the top seat (2), and the output end of the second motor (506) is connected with the rotating shaft of the return cylinder (504);
the guide cover (507) is arranged on one side of the connecting block (502) and one side of the connecting rod (503) respectively, and the shape of the guide cover (507) is matched with the radian of two ends of the auxiliary conveyor belt (505).
3. The automatic deviation rectifying and conveying device of the offset press according to claim 1, wherein: the main conveyor belt (4) is made of rubber material.
4. The automatic deviation rectifying and conveying device of the offset press according to claim 1, wherein: the shape and the size of the deviation correcting cylinder (303) are consistent with those of the auxiliary cylinder (304).
5. The automatic deviation rectifying and conveying device of the offset press according to claim 1, wherein: a plurality of photoelectric sensors (7) are arranged on the lower end face of the top seat (2).
6. The automatic deviation rectifying and conveying device of the offset press according to claim 1, wherein: limiting plates (8) are arranged at two ends of the installation shaft (302) and used for preventing the installation shaft (302) from falling off the supporting frame (301).
CN202321911952.XU 2023-07-20 2023-07-20 Automatic deviation correcting and conveying device of offset press Active CN220563932U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321911952.XU CN220563932U (en) 2023-07-20 2023-07-20 Automatic deviation correcting and conveying device of offset press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321911952.XU CN220563932U (en) 2023-07-20 2023-07-20 Automatic deviation correcting and conveying device of offset press

Publications (1)

Publication Number Publication Date
CN220563932U true CN220563932U (en) 2024-03-08

Family

ID=90089273

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321911952.XU Active CN220563932U (en) 2023-07-20 2023-07-20 Automatic deviation correcting and conveying device of offset press

Country Status (1)

Country Link
CN (1) CN220563932U (en)

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