Paper conveying deviation rectifying device for printing

Abstract

The utility model discloses a paper conveying deviation rectifying device for printing, and relates to the technical field of paper conveying devices. The device comprises a conveying table and a printing machine, the conveying table comprises a conical roller, floating frames are rotationally connected to the front face and the back face of the conical roller, two first supporting frames are fixedly connected to the top of the conveying table, and first telescopic rods are fixedly connected to the front face and the back face of each floating frame; the opposite sides of the two first telescopic rods are fixedly connected with the corresponding sides of the two first supporting frames, and the outer surfaces of the first telescopic rods are sleeved with first springs. By arranging the conical roller, specifically, when paper deviates, the contact area of the edge of the paper and the conical surface is increased, so that friction force is increased, transverse component force in the opposite direction is generated, and the transverse force overcomes the resistance of the spring, pushes the floating frame and the conical roller to integrally move and drives the paper to reset towards the center; the paper conveying device solves the problem that an existing paper conveying device does not have the deviation rectifying function, so that paper is separated from a conveying center area, and paper wrinkles or equipment jamming is possibly caused.

Description

Technical Field

[0001] This utility model belongs to the technical field of paper transport devices, and in particular relates to a paper transport and correction device for printing. Background Technology

[0002] Paper transport devices are mechanical devices used to automatically and accurately deliver paper, commonly used in printing presses. Their core objective is to ensure that paper passes smoothly, without jamming or overlapping, through the equipment. However, existing paper transport devices still have some problems.

[0003] For example, the utility model patent with publication number CN212126989U includes a positioning plate, with a turntable rotatably embedded on the adjacent sides of the two positioning plates, and a rotating shaft between the two turntables. Both ends of the rotating shaft are fixedly connected to connecting plates, and the connecting plates are fixed to the adjacent turntables with screws. This utility model does not have the function of correcting deviation during the paper transmission process, which may cause paper to accidentally leave the transmission center area, resulting in paper wrinkles or equipment jamming. Therefore, we propose a paper transmission correction device for printing. Utility Model Content

[0004] The purpose of this invention is to provide a paper conveying and correction device for printing. By setting a conical roller, specifically when the paper is transported in the center, the outer surface of the conical roller contacts the top of the paper. The conical roller rotates between two floating frames, and the springs on both sides are in a balanced state. When the paper deviates, the contact area between the edge of the paper and the conical surface increases, resulting in increased friction and generating a lateral force in the opposite direction. The lateral force overcomes the resistance of the springs and pushes the floating frames and the conical roller to move as a whole, causing the paper to return to the center. This solves the problem that existing paper conveying devices do not have a correction function, which may cause paper wrinkles or equipment jamming if the paper accidentally leaves the conveying center area.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a paper conveying and correction device for printing, comprising a conveyor table and a printing press. The printing press is placed on the top right side of the conveyor table. A conveyor belt is rotatably connected inside the conveyor table. A motor is fixedly connected to the front of the conveyor table via a support frame. The output end of the motor is fixedly connected to the drive shaft in the conveyor belt. A conical roller is arranged above the conveyor belt. Floating frames are rotatably connected to both the front and back of the conical roller. Two support frames are fixedly connected to the top of the conveyor table. Telescopic rods are fixedly connected to both the front and back of the floating frames. The opposite sides of the two telescopic rods are fixedly connected to the corresponding sides of the two support frames. A spring is sleeved on the outer surface of each telescopic rod. The combination of the conical roller and the floating frame realizes dynamic lateral correction during paper conveying. It uses the friction force of the conical surface to adaptively adjust the paper position, avoiding paper wrinkles or equipment jamming caused by paper deviation, thus improving the reliability of the device operation.

[0007] Furthermore, two limiting plates are provided on the right side of the conical roller. The bottom of the limiting plates contacts the top of the conveyor belt, and the limiting plates directly contact the surface of the conveyor belt to limit the paper offset range, prevent excessive correction, and further ensure that the paper is always in the center area of ​​the conveyor, thereby improving the correction effect of the device.

[0008] Furthermore, a slider is fixedly connected to the top of the limiting plate, and two threaded rods are threaded inside the slider. The threads of the threaded rods are arranged in two opposite directions. Two support frames are fixedly connected to the top of the conveyor table. The interior of the support frame is rotatably connected to the outer surface of the threaded rods. Pulleys are fixedly connected to the front of each of the two threaded rods. Synchronous belts are provided on the outer surfaces of the two pulleys. The two pulleys are connected by synchronous belt transmission. A knob is fixedly connected to the front of the pulley on the left side. The cooperation between the threaded rods and the slider realizes bidirectional synchronous adjustment of the spacing of the limiting plate, quickly adapting to different paper widths and improving the adaptability of the limiting plate.

[0009] Furthermore, a pressure plate is provided on the right side of the limiting plate. The bottom of the pressure plate contacts the top of the conveyor belt. The pressure plate applies continuous pressure to the corrected paper, thereby smoothing the paper and ensuring that the paper enters the printing unit stably.

[0010] Furthermore, a support frame three is fixedly connected to the top of the conveyor table near the pressure plate. Two telescopic rods are fixedly connected to the top of the pressure plate. The top of the telescopic rods is fixedly connected to the bottom of the support frame three. A spring two is sleeved on the outer surface of the telescopic rods. The combination of the spring two and the telescopic rods ensures that the pressure plate is always in close contact with the paper surface, thereby improving the stability of the pressure plate.

[0011] Furthermore, baffles are slidably connected to the outer surfaces of the two telescopic rods, and threaded rods are fixedly connected to the top of the baffles. The top of the threaded rods extends through the top of the support frame three and outwards. A knob is rotatably connected to the top of the support frame three. The inside of the knob is threadedly connected to the outer surface of the threaded rods. The knob and the threaded rods enable precise adjustment of the pressure plate height, ensuring linear and controllable pressure adjustment to adapt to different paper thicknesses and avoid overpressure that could cause thin paper to deform or thick paper to slip.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model, by setting a conical roller, specifically, when the paper is transported in the center, the outer surface of the conical roller contacts the top of the paper. The conical roller rotates between two floating frames, and the springs on both sides are in a balanced state. When the paper deviates, the contact area between the edge of the paper and the conical surface increases, resulting in increased friction and generating a lateral force in the opposite direction. The lateral force overcomes the resistance of the springs and pushes the floating frames and the conical roller to move as a whole, driving the paper back to the center. This avoids paper wrinkles or equipment jamming caused by paper deviation during the paper transport process, and improves the reliability of the device operation.

[0014] 2. This utility model uses a limiting plate. Specifically, when the knob is turned, the pulley and the synchronous belt drive the two threaded rods to rotate simultaneously. Since the two threaded rods are set with threads in opposite directions, the two sliders move in opposite directions at the same time, thereby adjusting the distance between the two limiting plates. The limiting plates further restrict the possibility of paper deviation, and the spacing of the limiting plates is adjustable to adapt to different paper widths, further improving the device's correction capability.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the conical roller structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting plate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the knob of this utility model;

[0021] Figure 5 This is a schematic diagram of the pressure plate structure of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Conveyor table; 11. Conveyor belt; 111. Motor; 12. Conical roller; 121. Floating frame; 122. Support frame one; 123. Telescopic rod one; 124. Spring one; 13. Limiting plate; 131. Slider; 132. Threaded rod; 133. Support frame two; 134. Pulley; 135. Synchronous belt; 136. Knob one; 14. Pressure plate; 141. Support frame three; 142. Telescopic rod; 143. Spring; 144. Baffle; 145. Threaded rod; 146. Knob two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figures 1-5As shown, this utility model is a paper conveying and correction device for printing, including a conveyor table 1 and a printing press 2. The printing press 2 is placed on the top right side of the conveyor table 1. A conveyor belt 11 is rotatably connected inside the conveyor table 1. A motor 111 is fixedly connected to the front of the conveyor table 1 via a support frame. The output end of the motor 111 is fixedly connected to the drive shaft in the conveyor belt 11. A conical roller 12 is arranged above the conveyor belt 11. Floating frames 121 are rotatably connected to both the front and back of the conical roller 12. Two support frames 122 are fixedly connected to the top of the conveyor table 1. Telescopic rods 123 are fixedly connected to both the front and back of the floating frames 121. The opposite sides of the two telescopic rods 123 are opposite to the two support frames 122. One side is fixedly connected, and the outer surface of the telescopic rod 123 is fitted with a spring 124. By setting a conical roller 12, specifically when the paper is transported in the center, the outer surface of the conical roller 12 contacts the top of the paper. The conical roller 12 rotates between two floating frames 121, and the springs 124 on both sides are in a balanced state. When the paper deviates, the contact area between the edge of the paper and the conical surface increases, resulting in increased friction and generating a lateral force in the opposite direction. The lateral force overcomes the resistance of the spring 124 and pushes the floating frame 121 and the conical roller 12 to move as a whole, driving the paper to return to the center. This avoids paper wrinkles or equipment jamming caused by deviation during paper transport, and improves the reliability of the device operation.

[0026] Two limiting plates 13 are provided on the right side of the conical roller 12, and the bottom of the limiting plates 13 contacts the top of the conveyor belt 11.

[0027] A slider 131 is fixedly connected to the top of the limiting plate 13. Two threaded rods 132 are internally threaded, with the threads of the first threaded rods 132 arranged in opposite directions. Two support frames 133 are fixedly connected to the top of the conveyor table 1. The support frames 133 are rotatably connected to the outer surface of the first threaded rods 132. Pulleys 134 are fixedly connected to the front of each of the two threaded rods 132. Synchronous belts 135 are provided on the outer surface of the two pulleys 134, and the two pulleys 134 are connected by synchronous belts 135. The pulley 134 on the left side... A knob 136 is fixedly connected to the front of the device. By setting a limiting plate 13, specifically, rotating the knob 136 causes the pulley 134 and the synchronous belt 135 to drive the two threaded rods 132 to rotate simultaneously. Since the threaded rods 132 have two threads in opposite directions, the two sliders 131 move in opposite directions simultaneously, thereby adjusting the distance between the two limiting plates 13. The limiting plates 13 further limit the possibility of paper deviation, and the spacing of the limiting plates 13 is adjustable to adapt to different paper widths, further improving the device's correction capability.

[0028] A pressure plate 14 is provided on the right side of the limiting plate 13, and the bottom of the pressure plate 14 contacts the top of the conveyor belt 11.

[0029] A support frame 3 141 is fixedly connected to the top of the conveyor 1 near the pressure plate 14. Two telescopic rods 142 are fixedly connected to the top of the pressure plate 14. The top of the telescopic rods 142 is fixedly connected to the bottom of the support frame 3 141. A spring 2 143 is sleeved on the outer surface of the telescopic rods 142.

[0030] Two telescopic rods 142 are slidably connected to baffles 144 on their outer surfaces. A threaded rod 145 is fixedly connected to the top of the baffles 144. The top of the threaded rod 145 passes through the top of the support frame 141 and extends to the outside. A knob 146 is rotatably connected to the top of the support frame 141. The inside of the knob 146 is threadedly connected to the outer surface of the threaded rod 145.

[0031] A specific application of this embodiment is as follows: In use, firstly, adjust the distance between the two limiting plates 13 according to the paper width. Rotate knob 136. Due to the action of pulley 134 and synchronous belt 135, the two threaded rods 132 rotate simultaneously. Since the threaded rods 132 have two opposite threads, the two sliders 131 move in opposite directions simultaneously, thereby adjusting the distance between the two limiting plates 13. Then, adjust the pressure of the pressure plate 14 according to the paper thickness and material. Rotate knob 2 146 to rotate it on top of support frame 3 141, thereby moving threaded rod 2 145 inside it to adjust the position of baffle 144 on the outer surface of telescopic rod 142. Then, adjust the preload of spring 2 143 to adjust the pressure of pressure plate 14, avoiding excessive pressure that could damage the paper. If the paper is damaged or the pressure is too low to effectively smooth it, the motor 111 is started, driving the conveyor belt 11 to move. The paper is placed on top of the conveyor belt 11. When the paper is transported in the center, the outer surface of the conical roller 12 contacts the top of the paper. The conical roller 12 rotates between the two floating frames 121. The springs 124 on both sides are in a balanced state. When the paper deviates, the contact area between the edge of the paper and the conical surface increases, resulting in increased friction and generating a lateral force in the opposite direction. The lateral force overcomes the resistance of the springs 124 and pushes the floating frames 121 and the conical roller 12 to move as a whole, driving the paper back to the center. Then the paper is fed between the two limiting plates 13 to further maintain the paper in the center area. Finally, the paper is further smoothed after passing the bottom of the pressure plate 14 and enters the printing press 2.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A paper conveying and correction device for printing, comprising a conveyor table (1) and a printing press (2), wherein the printing press (2) is placed on the top right side of the conveyor table (1), a conveyor belt (11) is rotatably connected inside the conveyor table (1), a motor (111) is fixedly connected to the front of the conveyor table (1) via a support frame, and the output end of the back of the motor (111) is fixedly connected to the drive shaft in the conveyor belt (11), characterized in that: A conical roller (12) is provided above the conveyor belt (11). A floating frame (121) is rotatably connected to both the front and back of the conical roller (12). Two support frames (122) are fixedly connected to the top of the conveyor platform (1). Telescopic rods (123) are fixedly connected to both the front and back of the floating frame (121). The opposite sides of the two telescopic rods (123) are fixedly connected to the sides corresponding to the two support frames (122). A spring (124) is sleeved on the outer surface of the telescopic rod (123).

2. The paper sheet transport deviation correcting device for printing according to claim 1, wherein Two limiting plates (13) are provided on the right side of the conical roller (12), and the bottom of the limiting plates (13) is in contact with the top of the conveyor belt (11).

3. The paper sheet transport deviation correcting device for printing according to claim 2, wherein The top of the limiting plate (13) is fixedly connected to a slider (131). The slider (131) is internally threaded with two threaded rods (132). The threads of the threaded rods (132) are arranged in two opposite directions. The top of the conveyor (1) is fixedly connected to two support frames (133). The support frames (133) are rotatably connected to the outer surface of the threaded rods (132). The front of each of the two threaded rods (132) is fixedly connected to a pulley (134). The outer surface of the two pulleys (134) is provided with a synchronous belt (135). The two pulleys (134) are connected by a synchronous belt (135). The pulley (134) on the left side is fixedly connected to a knob (136).

4. The paper sheet transport deviation correcting device for printing according to claim 3, wherein A pressure plate (14) is provided on the right side of the limiting plate (13), and the bottom of the pressure plate (14) contacts the top of the conveyor belt (11).

5. A paper sheet transport deviation correcting device for printing according to claim 4, wherein The top of the conveyor (1) is fixedly connected to a support frame three (141) near the pressure plate (14). The top of the pressure plate (14) is fixedly connected to two telescopic rods (142). The top of the telescopic rods (142) is fixedly connected to the bottom of the support frame three (141). The outer surface of the telescopic rods (142) is fitted with a spring two (143).

6. A paper sheet transport deviation correcting device for printing according to claim 5, wherein Two telescopic rods (142) are slidably connected to baffles (144) on their outer surfaces. A threaded rod (145) is fixedly connected to the top of the baffles (144). The top of the threaded rod (145) passes through the top of the support frame (141) and extends to the outside. A knob (146) is rotatably connected to the top of the support frame (141). The inside of the knob (146) is threadedly connected to the outer surface of the threaded rod (145).

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