Automatic deviation-correcting and alignment paper feeding mechanism and control method

Abstract

The present invention discloses an automatic paper feed mechanism with corrected alignment and a control method, comprising a facial paper feeder head, a cardboard feeder head, a first servo drive device, a second servo drive device, and a correcting mechanism; a cardboard conveyor belt is provided in front of the cardboard feeder head, a facial paper conveyor belt is provided obliquely above the cardboard conveyor belt, and a facial paper alignment mechanism and a cardboard alignment mechanism are provided at the ends of the facial paper conveyor belt and the cardboard conveyor belt, respectively; the facial paper feeder head and the cardboard feeder head are controlled by the first and second servo drives to feed facial paper and cardboard onto the facial paper conveyor belt and the cardboard conveyor belt, respectively, so that the facial paper alignment mechanism and the cardboard alignment mechanism align and laminate the facial paper and cardboard; the correcting mechanism comprises a facial paper correcting device and a cardboard correcting device, which are respectively provided on the facial paper alignment mechanism and the cardboard alignment mechanism. The present invention can adapt to different sizes of paper, improve the alignment accuracy of continuous paper feeding and laminating, and effectively improve production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of paper processing, and in particular to an automatic deviation-correcting and alignment paper feeding mechanism and a control method. Background Art

[0002] A card laminating machine is a paper processing equipment that laminates face paper and cardboard together. It is used to replace manual lamination of face paper and cardboard. It has the advantages of fast processing efficiency and accurate alignment of face paper and cardboard.

[0003] The laminating machine uses a purely mechanical drive, with the two feeder heads driven by the main machine. This speed ratio cannot be adjusted to the main machine's speed based on the length of the paper, nor can it automatically adjust the alignment accuracy. This results in large gaps when the paper breaks during production, and the alignment accuracy is low. The alignment chain has a positioning gauge. If the length of the paper being produced is greater than the spacing of the positioning gauge, the positioning gauge will directly press the end of the paper, resulting in the machine being able to produce only products within the positioning gauge spacing. The machine has poor adaptability to paper lengths and cannot meet the flexible production needs of modern society. Summary of the Invention

[0004] The purpose of the present invention is to provide a paper feeding mechanism and control method with automatic deviation correction and alignment, which combines sensing, servo control and other technologies to achieve automatic alignment adjustment of long and short papers during the paper feeding process, improve the alignment accuracy of continuous paper feeding, and effectively improve production efficiency.

[0005] In order to implement the above solution, an embodiment of the present invention provides a paper feeding mechanism with automatic deviation correction and alignment, including a face paper feeder head, a card paper feeder head, a first servo drive device, a second servo drive device, and a deviation correction mechanism;

[0006] A paper conveyor belt is provided in front of the paper feeding head, a facial paper conveyor belt is provided obliquely above the paper conveyor belt, a transition conveyor belt is provided between the facial paper conveyor belt and the facial paper feeding head, and a facial paper alignment mechanism and a paper card alignment mechanism are provided at the ends of the facial paper conveyor belt and the paper conveyor belt respectively;

[0007] The facial paper feeder head is controlled by the first servo drive device to feed facial paper onto the transition conveyor belt, and the transition conveyor belt conveys the facial paper onto the facial paper conveyor belt. The cardboard feeder head is controlled by the second servo drive device to feed cardboard onto the cardboard conveyor belt, and respectively feeds facial paper and cardboard into the facial paper alignment mechanism and cardboard alignment mechanism through the facial paper conveyor belt and cardboard conveyor belt, so that the facial paper alignment mechanism and cardboard alignment mechanism align and laminate the facial paper and cardboard.

[0008] The correction mechanism includes a face paper correction device and a paper jam correction device. The face paper correction device and the paper jam correction device are respectively arranged on the face paper alignment mechanism and the paper jam alignment mechanism, and are used to detect the paper feeding status.

[0009] Preferably, the face paper alignment mechanism is provided with a plurality of gauge claws so that the gauge claws on the face paper alignment mechanism limit the face paper, and the paper jam alignment mechanism is provided with a plurality of stop gauge assemblies so that the stop gauge assemblies on the paper jam alignment mechanism limit the paper jam, so that the face paper and the paper jam are matched and aligned under the limit of the face paper alignment mechanism and the paper jam alignment mechanism.

[0010] Preferably, the facial paper alignment mechanism includes a first facial paper chain and a second facial paper chain, and the guide claws are respectively arranged on the first and second facial paper chains.

[0011] Preferably, the paper jam alignment mechanism includes a first paper jam chain, a second paper jam chain, a third paper jam chain, and a fourth paper jam chain. The first, second, third, and fourth paper jam chains are arranged in parallel, and the several stop gauge assemblies are respectively arranged on the first, second, third, and fourth paper jam chains. The alignment drive device drives the gauge claws and stop gauge assemblies to move synchronously.

[0012] Preferably, the stop gauge assembly includes a stop gauge seat and a stop gauge block. The stop gauge block is arranged on the stop gauge seat. The stop gauge seat is fixedly arranged on the first, second, third and fourth paper jam chains. A pair of strip grooves are provided at the bottom of the stop gauge block, which is fixedly connected to the stop gauge seat by screws passing through the strip grooves, so that the stop gauge block on the stop gauge seat limits the paper jam.

[0013] Preferably, it also includes a facial paper feeding rack and a card paper feeding rack, the facial paper feeding rack is used to stack facial paper, the facial paper feeding head is set on the facial paper feeding rack, the card paper feeding rack is used to stack card paper, and the card paper feeding head is set on the card paper feeding rack.

[0014] Preferably, it also includes a conveying control system, which is electrically connected to the first servo drive device, the second servo drive device, the alignment drive device, the face paper correction device, and the paper jam correction device. The conveying control system cooperates with the first servo drive device, the second servo drive device, the alignment drive device, the face paper correction device, and the paper jam correction device to achieve precise positioning of the face paper and the paper jam.

[0015] Preferably, a paper feeding mechanism and control method for automatic deviation correction and alignment comprises the following steps:

[0016] Step 1: Turn on the power, enter the conveying control system, adjust the starting position of the face paper feeder head and the card paper feeder head, start the face paper conveyor belt, card paper conveyor belt, and transition conveyor belt, and prepare to feed paper;

[0017] Step 2: The paper length, the operating speed of the main machine, the feed speed of the intermediate conveyor, and the paper spacing are input. The conveying control system calculates the speed ratio of the first and second servo drives to the main machine speed based on these parameters, thereby controlling the paper feed speeds of the tissue paper feeder and the card paper feeder. The conveying control system calculates the time required for the tissue paper to reach the set distance based on the paper feed speed of the tissue paper feeder, the operating speed of the main machine, and the paper spacing, and adjusts the activation time of the second servo drive accordingly.

[0018] Step 3: The conveying control system controls the first servo drive device to start according to the given parameters, so that it drives the tissue paper feeder head to feed the tissue paper on the tissue paper feed rack onto the transition conveyor belt, and the transition conveyor belt feeds the tissue paper forward to the tissue paper conveyor belt, and the tissue paper feeder head continuously feeds the tissue paper onto the transition conveyor belt within the time it takes for the tissue paper to reach the paper jam position; when the start time of the second servo drive device reaches the time set by the conveying control system, it starts the second servo drive device, so that the second servo drive device drives the paper jam on the paper jam feed rack to be fed onto the paper jam conveyor belt;

[0019] Step 4: The facial paper and card paper are respectively sent to the designated position by the facial paper conveyor belt and the card paper conveyor belt. The facial paper correction device and the card paper correction device detect whether there is a paper feeding error between the facial paper and the card paper and provide feedback. The conveying control system automatically adjusts the start time of the alignment drive device according to the feedback information, so that after a certain conveying adjustment of the facial paper and the card paper, the leading edge of the facial paper intersects with the leading edge of the card paper, so that the two papers are completely aligned.

[0020] Preferably, facial paper and card paper are respectively fed into the facial paper alignment mechanism and card paper alignment mechanism through the facial paper conveyor belt and card paper conveyor belt, so that the leading edge of the facial paper is restricted on the gauge claws of the first and second facial paper chains, and the leading edge of the card paper is restricted on the stop gauge blocks of the first, second, third and fourth card paper chains.

[0021] Preferably, the conveying control system controls the starting time between the alignment drive devices according to the paper feeding error between the facial paper and the card paper, so that the facial paper conveyor belt sends the facial paper to the upper limit of the gauge claw, and the card paper conveyor belt sends the card paper to the upper limit of the gauge block, and the first and second facial paper chains are synchronized with the first, second, third and fourth card paper chains to run and convey forward, and the facial paper on the first and second facial paper chains is fed into the first, second, third and fourth card paper chains, so that the leading edges of the facial paper and the card paper intersect and are limited on the gauge block.

[0022] The implementation of the embodiments of the present invention has the following beneficial effects:

[0023] The facial paper feeder head, card paper feeder head, and the card paper alignment mechanism use servo motors, and the servo motors work independently and are controlled by the conveying control system. The conveying control system controls the starting sequence between the facial paper feeder head and the card paper feeder head according to the front and rear position difference between the facial paper feeder head and the card paper feeder head and the length of the paper. At the same time, the conveying control system accurately controls the paper feeding speed of the facial paper feeder head and the card paper feeder head, so that the facial paper and the card paper can be accurately mounted.

[0024] The alignment errors between the face paper and the jammed paper are detected by the face paper correction device and the jammed paper correction device, so that the conveying control system can adjust the alignment errors, thereby improving the alignment accuracy of continuous paper feeding and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the paper feeding mechanism for facial paper and card paper;

[0027] Figure 3 This is the main view of the overall structure of the tissue paper alignment mechanism;

[0028] Figure 4 This is the main view of the overall structure of the paper jam alignment mechanism;

[0029] Figure 5 It is a top view of the overall structure of the tissue paper alignment mechanism;

[0030] Figure 6 It is a top view of the overall structure of the paper jam alignment mechanism;

[0031] Figure 7 To show Figure 1 Schematic diagram of the structure of part A in FIG;

[0032] Figure 8 To show Figure 1 Schematic diagram of the structure of part B;

[0033] Figure 9 To show Figure 4 Schematic diagram of the C part structure;

[0034] Figure 10 This is the main view of the overall structure of the stop gauge assembly;

[0035] Figure 11 It is a top view of the overall structure of the retaining gauge assembly. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0037] Reference Figure 1 As shown, a paper feeding mechanism with automatic deviation correction and alignment and a control method thereof include a facial paper feeding rack 1, a card paper feeding rack 2, a facial paper feeder head 3, a card paper feeder head 4, a first servo drive device, a second servo drive device, a deviation correction mechanism, and a conveying control system.

[0038] The facial paper feeder head 3 is arranged on the facial paper feeding rack 1, the card paper feeder head 4 is arranged on the card paper feeding rack 2, a card paper conveyor belt 7 is arranged in front of the card paper feeding rack 2, a facial paper conveyor belt 8 is arranged obliquely above the card paper conveyor belt 7, a facial paper alignment mechanism 5 is arranged above the end of the facial paper conveyor belt 8, a card paper alignment mechanism 6 is arranged at the end of the card paper conveyor belt 7, and a transition conveyor belt 9 is arranged between the facial paper feeding rack 1 and the facial paper conveyor belt 8.

[0039] Reference Figure 2-Figure 4 As shown, the face paper alignment mechanism 5 is provided with a plurality of gauge claws 51, so that the gauge claws 51 on the face paper alignment mechanism 5 limit the face paper, and the paper jam alignment mechanism 6 is provided with a plurality of gauge components 61, so that the gauge components 61 on the paper jam alignment mechanism 6 limit the paper jam, so that the face paper and the paper jam are matched and aligned under the limitation of the face paper alignment mechanism 5 and the paper jam alignment mechanism 6.

[0040] Reference Figure 1 As shown, the facial paper feed rack 1 and the card paper feed rack 2 are respectively provided with a first lifting assembly and a second lifting assembly. The first lifting assembly includes a paper board, a first conveyor shaft, a second conveyor belt, a lifting drive device, a first lifting chain, a second lifting chain, a third lifting chain, and a fourth lifting chain. The left end of the first conveyor shaft is provided with a first driving sprocket and a second driving sprocket, the right end of the first conveyor shaft is provided with a third driving sprocket and a fourth driving sprocket, and both ends of the second conveyor shaft are provided with a first driven sprocket and a second driven sprocket. The paper board is provided on the facial paper feed rack 1 and the card paper feed rack 2. At the lower part of the paper feed rack, one end of the first and second lifting chains are respectively wound around the first and second driven sprockets and fixedly connected to the first and fourth driving sprockets, and the other ends are respectively fixedly connected to the left sides of the paper board. One end of the third and fourth lifting chains are respectively fixedly connected to the second and third driving sprockets, and the other ends are respectively fixedly connected to the right sides of the placement plate. When the facial paper pile is stacked on the paper board, the second transmission shaft is driven to rotate by the lifting drive device, so that the first, second, third and fourth lifting chains drive the paper board to move up and down, thereby driving the facial paper pile to rise and fall.

[0041] The face paper feeder head and the back paper feeder head in the embodiment of the present invention are prior art, and the prior art is a feeder head with Chinese patent publication number CN203652881U, which will not be repeated here.

[0042] Reference Figure 1 、 Figure 7 、 Figure 8 As shown, the facial paper feeder 1 and the card paper feeder 2 are respectively provided with a first servo drive device and a second servo drive device. The first and second servo drive devices are electrically connected to the conveying control system. In the present invention, the conveying control system calculates the speed ratio of the first and second servo drives to the host speed based on the length of the paper and the rotation speed of the intermediate conveyor belt, thereby controlling the paper feeding speed of the facial paper feeder head 3 and the card paper feeder head 4. The conveying control system controls the first servo drive device to drive the facial paper feeder head 3 to absorb the facial paper and feed it onto the intermediate conveyor belt 9. At the same time, the lifting drive device drives the first, second, third, and fourth lifting chains to contract, thereby driving the facial paper on the cardboard to rise to the bottom of the facial paper feeder head 3, and the lifting drive device stops, thereby realizing automatic paper suction, feeding, and lifting. After the facial paper enters the intermediate conveyor belt 9, it is fed onto the facial paper conveyor belt 8.

[0043] The rotational speed of the first and second servo drive devices is proportional to the rotational speed of the transition conveyor belt 9, so that the distance between any adjacent facial papers fed into the transition conveyor belt 9 remains consistent, avoiding deviation of facial papers and cardboard during the transportation process due to the different rotational speeds between the first and second servo drive devices, resulting in inaccurate alignment between them and affecting the laminating quality.

[0044] The rotational speed of the first and second servo drive devices is inversely proportional to the length of the paper, so that the rotational speed of the first servo drive device, the second servo drive device, and the transition conveyor belt 9 decreases as the length of the paper increases, thereby controlling the paper feeding speed of the surface paper feeder 3 and the card paper feeder head 4 according to the size of different papers.

[0045] In the present invention, a transition conveyor belt 9 is provided between the facial paper feed rack 1 and the facial paper conveyor belt 8, so that a certain distance is formed between the facial paper feed rack 1 and the card paper feed rack 2. In order to ensure the consistent transmission between facial paper and card paper, it is necessary to control the starting sequence of the first and second servo drive devices to compensate for the distance between the facial paper feed rack 1 and the card paper feed rack 2. Therefore, the conveying control system calculates the time required for the facial paper to reach its set distance based on the paper feeding speed of the facial paper feeder head 3, the operating speed of the host computer and the spacing between the papers, thereby controlling the starting sequence between the first and second servo drive devices. When the facial paper reaches the distance set by the conveying control system within the set time, the conveying control system then starts the second servo drive device, so that the second servo drive device drives the jam paper feeder head 4 to feed the jam paper on the jam paper feed rack 2 onto the jam paper conveyor belt 7, ensuring that the positions of the facial paper and the jam paper are consistent, thereby compensating for the distance difference between the facial paper and the jam paper during the conveying process, avoiding the situation where the jam paper reaches the jam paper aligning mechanism 6 first and the facial paper does not reach the facial paper alignment mechanism 5, thereby causing paper leakage, affecting subsequent processes.

[0046] Reference Figure 2As shown, facial paper and cardboard are respectively fed into the facial paper alignment mechanism 5 and the cardboard alignment mechanism 6 under the transportation of the facial paper conveyor belt 8 and the cardboard conveyor belt 7. The correction mechanism includes a facial paper correction device and a cardboard correction device. The facial paper correction device is arranged on the facial paper alignment mechanism 5, and the cardboard correction device is arranged on the cardboard alignment mechanism 6. The facial paper correction device and the cardboard correction device preferably adopt photoelectric eyes for detecting the paper feeding status.

[0047] Reference Figure 4 、 Figure 6 As shown, the paper jam alignment mechanism 6 includes a first paper jam chain 62, a second paper jam chain 63, a third paper jam chain 64, and a fourth paper jam chain 65. The paper jam conveyor belt 7 is set on the frame. The first, second, third, and fourth paper jam chains 62, 63, 64, and 65 are arranged in parallel and are set at the end of the paper jam conveyor belt 7. The end of the frame is rotated back and forth with a first sprocket shaft and a second sprocket shaft. The first sprocket shaft corresponds to the first, second, third, and fourth paper jam chains 62, 63, 64, and 65. , 65 are fixedly provided with a first driving sprocket, and the second sprocket shaft is fixedly provided with a first driven sprocket corresponding to the first, second, third and fourth paper jamming chains 62, 63, 64, 65, so that the first, second, third and fourth paper jamming chains 62, 63, 64, 65 are respectively tensioned on the first driving sprocket and the first driven sprocket, and the first sprocket shaft is driven to rotate by the alignment driving device, so that the first, second, third and fourth paper jamming chains 62, 63, 64, 65 are linked to move synchronously.

[0048] In combination Figure 9 、 Figure 10 As shown, in the present invention, the number of chain links of the first, second, third and fourth paper jam chains 62, 63, 64 and 65 is preferably 40, and a plurality of stop gauge assemblies 61 are respectively arranged on the first, second, third and fourth paper jam chains 62, 63, 64 and 65. In the present invention, each paper jam chain preferably adopts two stop gauge assemblies 61, and a stop gauge assembly 61 is arranged every 20 links of the first, second, third and fourth paper jam chains 62, 63, 64 and 65. The stop gauge assembly 61 includes a stop gauge seat 611 and a stop gauge block 612. The stop gauge block 612 is arranged on the stop gauge seat 611, and the stop gauge seat 611 is fixedly arranged on the first, second, third and fourth paper jam chains 62, 63, 64 and 65. Figure 10 、 Figure 11As shown; when the paper jam is input to the first, second, third and fourth paper jam chains 62, 63, 64 and 65 through the paper jam conveyor belt, the stop block 612 on the first, second, third and fourth paper jam chains 62, 63, 64 and 65 limits the leading edge of the paper jam. Compared with the prior art, two paper jam chains are used and stop blocks are provided on the chains. However, since the paper jam is affected by moisture, it is inevitable that the corners will be warped and deformed, which causes the paper jam to be unable to be normally limited on the stop block 612 and the paper cannot be aligned. Moreover, when the paper is thin or the span of the paper is large, the paper is prone to slight deformation when limited by the stop block, thereby affecting the subsequent process. The present invention adopts four paper jam chains. The paper jam chains 62, 63, 64, and 65, when the paper jam has no defects, the leading edge of the paper jam is limited to the first, second, third, and fourth paper jam chains 62, 63, 64, and 65. When the paper jam is warped and deformed, the first and fourth paper jam chains 62 and 65 cannot limit the leading edge of the paper jam, but the distance between the second and third paper jam chains 63 and 64 is smaller than the distance between the first and fourth paper jam chains 62 and 65, so that the second and third paper jam chains 63 and 64 still limit the leading edge of the paper jam, thereby ensuring that the paper jam always remains aligned and is not affected by the warping and deformation of the paper jam, and ensuring that different papers are subjected to uniform force when limiting, thereby avoiding deformation of the paper due to uneven force.

[0049] Refer again Figure 11 As shown, it is better that a pair of strip grooves 613 are provided at the bottom of the stop gauge block 611, which are fixedly connected to the stop gauge seat 611 respectively by screws passing through the strip grooves 613. Compared with the prior art in which the stop gauge and the chain are fixed, the paper jam stop gauge cannot be adjusted. Due to slight differences in the chain itself and the tolerances accumulated by other mating parts or the tolerances accumulated over a long period of work, the front and rear position deviation of the product reaches more than 0.6 mm. The movable range of the stop gauge seat 611 in the present invention is less than 4 mm. The stop gauge seat 611 is moved along the chain lock by loosening the chain lock, and is adjusted according to the deviation of the adjacent stop gauge seats 611, so that the stop gauge seats 611 on the first, second, third and fourth paper jam chains 62, 63, 64 and 65 are kept in the same radial position, thereby avoiding the situation in which the paper is tilted due to the front and rear position difference of the stop gauge seat 611.

[0050] Reference Figure 3 、 Figure 5As shown, the facial paper alignment mechanism 5 has a first facial paper chain 52 and a second facial paper chain 53, and the facial paper conveyor belt 8 is obliquely arranged above the cardboard conveyor belt 7. The first and second facial paper chains 52 and 53 are arranged in parallel, and multiple gauge claws 51 are respectively arranged on the first and second facial paper chains 52 and 53. A second driving sprocket, a second driven sprocket, and a third driven sprocket are respectively provided on both sides of the frame. The first and second facial paper chains 52 and 53 are tensioned on the first driving sprocket, the second driven sprocket, and the third driven sprocket. The second driving sprocket is driven to rotate by the gauge claw driving device, so that the first and second facial paper chains 52 and 53 are linked to move synchronously. In the present invention, the number of chain sections of the first and second facial paper chains 52 and 53 is preferably 40, and multiple gauge claws are respectively provided on the first and second facial paper chains 52 and 53, and each facial paper chain preferably adopts two gauge claws 51.

[0051] Reference Figures 1-6 As shown, the facial paper conveyor belt 8 sends the facial paper to the gauge claws 51 of the first and second facial paper chains 52 and 53, so that the gauge claws 51 hook the leading edge of the facial paper for limit alignment, and the paper jam conveyor belt 7 sends the paper jam to the stop gauge seat 611 of the first, second, third and fourth paper jam chains 62, 63, 64 and 65, so that the stop gauge block 612 limits and aligns the leading edge of the paper jam. At the same time, when the facial paper and paper jam enter the facial paper alignment mechanism 5 and the paper jam alignment mechanism 6, the facial paper deviation correction device and the paper jam deviation correction device respectively detect the paper feeding error between the facial paper and the paper jam. When a paper feeding error is detected between the facial paper and the paper jam, the facial paper deviation correction device and the paper jam deviation correction device respectively feed back to the conveying control system The system makes the conveying control system adjust the start-up time between the alignment driving devices according to the paper feeding error between the facial paper and the paper jam, so that it adjusts the paper feeding error between the facial paper and the paper jam, and synchronizes the operation of the first and second facial paper chains and the first, second, third and fourth paper jam chains 62, 63, 64, 65 and conveys them forward, thereby ensuring the precise alignment between the facial paper and the paper jam, and the facial paper on the first and second facial paper chains 52, 53 is fed into the first, second, third and fourth paper jam chains 62, 63, 64, 65, so that the leading edges of the facial paper and the paper jam intersect and are limited on the stop block 612, so that they intersect and align 62, 63, 64, 65, thereby realizing automatic mounting of the facial paper and the paper jam.

[0052] Reference Figures 1-8 As shown, the control method of the present invention comprises the following steps:

[0053] Step 1: Turn on the power, enter the conveying control system, adjust the starting position of the face paper feeder head and the card paper feeder head, start the face paper conveyor belt, card paper conveyor belt, and transition conveyor belt, and prepare to feed paper.

[0054] Step 2: Input the paper length, the main machine speed, the transfer conveyor belt speed, and the paper spacing. The conveyor control system calculates the speed ratio of the first and second servo drives to the main machine speed based on its parameters, thereby controlling the paper feed speed of the tissue paper feeder and the card paper feeder. The conveyor control system calculates the time required for the tissue paper to reach the set distance based on the paper feed speed of the tissue paper feeder, the main machine speed (the default is 30 m / min if not set), and the paper spacing. This is used to adjust the start time of the second servo drive.

[0055] Step 3: The conveying control system controls the first servo drive device to start according to the given parameters, so that it drives the facial paper feeder head to feed the facial paper on the facial paper feed rack onto the transition conveyor belt, and the transition conveyor belt feeds the facial paper forward to the facial paper conveyor belt, and the facial paper feeder head continuously feeds the facial paper onto the transition conveyor belt within the time when the facial paper reaches the paper jam position; when the start-up time of the second servo drive device reaches the time set by the conveying control system, it starts the second servo drive device, so that the second servo drive device drives the paper jam on the paper jam feed rack to be fed onto the paper jam conveyor belt.

[0056] Step 4: The facial paper and card paper are respectively sent to the designated position by the facial paper conveyor belt and the card paper conveyor belt. The facial paper correction device and the card paper correction device detect whether there is a paper feeding error between the facial paper and the card paper and provide feedback. The conveying control system automatically adjusts the start time of the alignment drive device according to the feedback information, so that after a certain conveying adjustment of the facial paper and the card paper, the leading edge of the facial paper intersects with the leading edge of the card paper, so that the two papers are completely aligned.

[0057] The embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any modifications made based on the spirit of the main technical solution of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A paper feeding mechanism with automatic deviation correction and alignment, characterized in that: It includes a facial paper feeder head, a card paper feeder head, a first servo drive device, a second servo drive device, a deviation correction mechanism, a facial paper feeder rack, and a card paper feeder rack; The facial paper feeding rack is used to stack facial papers, and the facial paper feeding head is arranged on the facial paper feeding rack. The card paper feeding rack is used to stack card paper, and the card paper feeding head is arranged on the card paper feeding rack; A paper conveyor belt is provided in front of the paper feeding head, a facial paper conveyor belt is provided obliquely above the paper conveyor belt, a transition conveyor belt is provided between the facial paper conveyor belt and the facial paper feeding head, and a facial paper alignment mechanism and a paper card alignment mechanism are provided at the ends of the facial paper conveyor belt and the paper conveyor belt respectively; The facial paper feeder head is controlled by the first servo drive device to feed facial paper onto the transition conveyor belt, and the transition conveyor belt conveys the facial paper onto the facial paper conveyor belt. The cardboard feeder head is controlled by the second servo drive device to feed cardboard onto the cardboard conveyor belt, and respectively feeds facial paper and cardboard into the facial paper alignment mechanism and cardboard alignment mechanism through the facial paper conveyor belt and cardboard conveyor belt, so that the facial paper alignment mechanism and cardboard alignment mechanism align and laminate the facial paper and cardboard. The correction mechanism includes a face paper correction device and a paper jam correction device, which are respectively arranged on the face paper alignment mechanism and the paper jam alignment mechanism, and are used to detect the paper feeding status; The face paper alignment mechanism is provided with a plurality of gauge claws, so that the gauge claws on the face paper alignment mechanism limit the face paper, and the paper jam alignment mechanism is provided with a plurality of stop gauge components, so that the stop gauge components on the paper jam alignment mechanism limit the paper jam, so that the face paper and the paper jam are aligned under the limit of the face paper alignment mechanism and the paper jam alignment mechanism; The paper jam alignment mechanism includes a first paper jam chain, a second paper jam chain, a third paper jam chain, and a fourth paper jam chain. The first, second, third, and fourth paper jam chains are arranged in parallel. The plurality of stop gauge assemblies are respectively arranged on the first, second, third, and fourth paper jam chains. The alignment drive device drives the gauge claws and the stop gauge assemblies to move synchronously. The stop gauge assembly includes a stop gauge seat and a stop gauge block. The stop gauge block is arranged on the stop gauge seat. The stop gauge seat is fixedly arranged on the first, second, third and fourth paper jam chains. A pair of strip grooves are provided at the bottom of the stop gauge block, which is fixedly connected to the stop gauge seat by screws passing through the strip grooves, so that the stop gauge block on the stop gauge seat limits the paper jam.

2. The automatic deviation-correcting and alignment paper feeding mechanism according to claim 1, characterized in that: The facial paper alignment mechanism comprises a first facial paper chain and a second facial paper chain, and the guide claws are respectively arranged on the first and second facial paper chains.

3. The automatic deviation-correcting and alignment paper feeding mechanism according to any one of claims 1 to 2, characterized in that: It also includes a conveying control system, which is electrically connected to the first servo drive device, the second servo drive device, the alignment drive device, the face paper correction device, and the paper jam correction device. The conveying control system cooperates with the first servo drive device, the second servo drive device, the alignment drive device, the face paper correction device, and the paper jam correction device to achieve precise positioning of the face paper and the paper jam.

4. The control method of a paper feeding mechanism with automatic deviation correction and alignment according to claim 3, characterized in that: The steps include: Step 1: Turn on the power, enter the conveying control system, adjust the starting position of the face paper feeder head and the card paper feeder head, start the face paper conveyor belt, card paper conveyor belt, and transition conveyor belt, and prepare to feed paper; Step 2: The paper length, the operating speed of the main machine, the feed speed of the intermediate conveyor, and the paper spacing are input. The conveying control system calculates the speed ratio of the first and second servo drives to the main machine speed based on these parameters, thereby controlling the paper feed speeds of the tissue paper feeder and the card paper feeder. The conveying control system calculates the time required for the tissue paper to reach the set distance based on the paper feed speed of the tissue paper feeder, the operating speed of the main machine, and the paper spacing, and adjusts the activation time of the second servo drive accordingly. Step 3: The conveying control system controls the first servo drive device to start according to the given parameters, so that it drives the tissue paper feeder head to feed the tissue paper on the tissue paper feed rack onto the transition conveyor belt, and the transition conveyor belt feeds the tissue paper forward to the tissue paper conveyor belt, and the tissue paper feeder head continuously feeds the tissue paper onto the transition conveyor belt within the time it takes for the tissue paper to reach the paper jam position; when the start time of the second servo drive device reaches the time set by the conveying control system, it starts the second servo drive device, so that the second servo drive device drives the paper jam on the paper jam feed rack to be fed onto the paper jam conveyor belt; Step 4: The facial paper and card paper are respectively sent to the designated position by the facial paper conveyor belt and the card paper conveyor belt. The facial paper correction device and the card paper correction device detect whether there is a paper feeding error between the facial paper and the card paper and provide feedback. The conveying control system automatically adjusts the start time of the alignment drive device according to the feedback information, so that after a certain conveying adjustment of the facial paper and the card paper, the leading edge of the facial paper intersects with the leading edge of the card paper, so that the two papers are completely aligned.

5. The control method of a paper feeding mechanism with automatic deviation correction and alignment according to claim 4, characterized in that: The facial paper and card paper are respectively sent to the facial paper alignment mechanism and card paper alignment mechanism through the facial paper conveyor belt and card paper conveyor belt, so that the leading edge of the facial paper is restricted on the gauge claws of the first and second facial paper chains, and the leading edge of the card paper is restricted on the stop gauge blocks of the first, second, third and fourth card paper chains.

6. The control method of the paper feeding mechanism with automatic deviation correction and alignment according to claim 5, characterized in that: The conveying control system controls the starting time between the alignment drive devices according to the paper feeding error between the facial paper and the card paper, so that the facial paper conveyor belt sends the facial paper to the upper limit of the gauge claw, and the card paper conveyor belt sends the card paper to the upper limit of the gauge block, and the first and second facial paper chains are synchronized with the first, second, third and fourth card paper chains to run and convey forward, and the facial paper on the first and second facial paper chains is fed into the first, second, third and fourth card paper chains, so that the leading edges of the facial paper and the card paper intersect and are limited on the gauge block.

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