A disc paper lapping device

Abstract

The patent discloses a disc paper lapping device, which comprises a U-shaped pressing block, a rotating shaft, a paper guide roller, a bonding plate and a pneumatic cylinder. A glue box is arranged in the U-shaped pressing block, which is used to provide glue to the paper tape. The disc paper moves to the direction of the bonding plate in the form of the paper tape under the drive of the paper guide roller. The pneumatic cylinder is connected with the U-shaped pressing block through the rotating shaft. The pneumatic cylinder drives the U-shaped pressing block to switch between the lifting state and the pressing state. When the U-shaped pressing block is in the lifting state, the paper tape runs without contacting the U-shaped pressing block. When the U-shaped pressing block is in the pressing state, the U-shaped pressing block presses the paper tape with glue in the bonding plate to perform lapping. The patent can quickly and accurately complete the lapping operation after the paper tape is disconnected, effectively improves the lapping efficiency and quality, and ensures the continuity of the tobacco filter rod production.

Description

Technical Field

[0001] This patent belongs to the field of tobacco production technology, specifically relating to a paper roll overlapping device. Background Technology

[0002] In the production of tobacco filter rods, paper tape, as a key raw material, plays a crucial role in the stable and continuous transport of filter rods, significantly impacting production efficiency and product quality. During transmission, the paper tape is inevitably prone to breakage due to various factors, including material properties, equipment operating conditions, and the external environment. If a paper tape breakage occurs and cannot be rejoined promptly and efficiently, production will be interrupted. This not only reduces production efficiency and increases production costs but may also negatively affect subsequent processing of the filter rods due to poor rejoining quality, ultimately harming the filter rod's quality.

[0003] Currently, in the tobacco filter rod production industry, the overlapping operation after the paper tape breaks is traditionally mostly done manually. Operators need to stop the machine quickly after the paper tape breaks, manually align the two ends of the broken tape, apply glue, and then apply pressure to bond them firmly. This manual overlapping method has many drawbacks: Firstly, the response speed of manual operation is slow; it takes time from the paper tape breaking to completing the overlap, seriously affecting the continuity of production and leading to low production efficiency. Secondly, the quality of manual overlapping is greatly affected by factors such as the operator's experience, skills, and sense of responsibility, making it difficult to guarantee the consistency and firmness of the paper tape overlap. If the paper tape is not accurately aligned during overlapping, it may cause subsequent paper tape transmission misalignment, affecting the forming quality of the filter rod; if the glue is applied unevenly or the pressure is insufficient, the overlap may easily break again, causing a second shutdown and further aggravating production losses.

[0004] With the tobacco industry's ever-increasing demands for production efficiency and product quality, traditional manual paper tape splicing methods are no longer sufficient to meet the needs of modern production. Therefore, developing a device capable of automatic paper tape splicing to improve efficiency and quality, and ensure continuous and stable production, has become a pressing technical problem in the tobacco filter rod manufacturing industry. Utility Model Content

[0005] The purpose of this patent is to provide a paper roll overlapping device to improve the efficiency and quality of paper roll overlapping.

[0006] To solve the above-mentioned technical problems, this patent adopts the following technical solution:

[0007] A paper roll overlap device includes a U-shaped pressure block, a rotating shaft, a guide roller, an adhesive plate, and a cylinder.

[0008] The paper roll moves towards the bonding plate in the form of a paper strip driven by the guide rollers.

[0009] The U-shaped pressure block contains a glue box, which is used to supply glue to the paper tape.

[0010] The cylinder is connected to the U-shaped pressure block via a rotating shaft. Driven by the cylinder, the U-shaped pressure block is switched between a raised state and a pressed state.

[0011] When the U-shaped pressure block is in the raised state, the paper tape runs without contact with the U-shaped pressure block;

[0012] When the U-shaped pressure block is in the pressing state, it presses the paper tape with glue onto the adhesive plate to overlap.

[0013] Furthermore, the cylinder includes a piston rod,

[0014] The U-shaped pressure block includes a power connection plate, a middle plate, and a lower pressure plate.

[0015] One end of the power connection plate is connected to the output end of the cylinder.

[0016] The other end of the power connection plate is connected to the middle plate, and the middle plate is connected to the lower pressure plate via a rotating shaft.

[0017] When the U-shaped pressure block is in the raised state, the thrust generated by the extended piston rod causes the paper tape to run without contact with the U-shaped pressure block;

[0018] When the U-shaped pressure block is in the pressing state, the tension generated by the piston rod retraction causes the middle plate connected to the power connecting plate to drive the lower pressure plate to move downward around the axis. The lower pressure plate presses the paper tape with glue in the adhesive plate to overlap.

[0019] Furthermore, one end of the cylinder is fixed to the housing of the paper roll splicing device, and the output end of the cylinder is hinged to the power connection plate.

[0020] Furthermore, the cylinder is positioned below the paper belt drive path.

[0021] Furthermore, the lower pressure plate is at least partially right-angled, and when the U-shaped pressure block is in the pressing state, the right-angled shape of the lower pressure plate can be adapted to connect with the adhesive plate.

[0022] Furthermore, the length of the power connection plate is shorter than that of the lower pressure plate.

[0023] Furthermore, the glue box is located inside the lower pressure plate.

[0024] Furthermore, the glue box is positioned between the bonding plate and the middle plate.

[0025] Furthermore, multiple paper guide rollers are provided.

[0026] Furthermore, the guide rollers are arranged symmetrically, and the paper belt is driven between the guide rollers.

[0027] Furthermore, the paper roll overlap device is used in the tobacco filter rod production forming machine. The paper roll is installed in the paper roll rotation system and is transferred to the paper storage box system in the form of paper strip through the paper roll overlap device.

[0028] In this patent, the term "cigarette roll paper" refers to cigarette roll paper, a special thin sheet of paper used to wrap tobacco shreds. As an auxiliary material for cigarettes, it plays a significant role in the tobacco industry. Cigarette roll paper can be used on cigarette rolling machines with a speed of 5000-6000 cigarettes / min to roll tobacco shreds, making them into a sturdy and intact cigarette.

[0029] This patent provides a paper roll overlapping device that can quickly and accurately complete the overlapping operation after the paper roll is broken, effectively improving the overlapping efficiency and quality, and ensuring the continuity of tobacco filter rod production.

[0030] Compared with the prior art, this patent has the following advantages:

[0031] 1. Significantly improve production efficiency

[0032] Traditional manual overlapping methods require manual operation after machine shutdown, which is slow and time-consuming, seriously affecting production continuity. However, the device of this patent, through the coordinated action of components such as guide rollers, cylinders, and U-shaped pressure blocks, can quickly complete automatic overlapping after the paper tape breaks, without the need for long machine shutdowns, significantly shortening the overlapping time, effectively reducing losses caused by production interruptions, and improving overall production efficiency.

[0033] 2. Improve the quality of paper tape overlap.

[0034] The quality of manual overlapping is greatly affected by factors such as the operator's experience, and problems such as inaccurate alignment and weak adhesion are prone to occur. In the device of this patent, the glue box can evenly spray glue onto the paper tape, and the U-shaped pressure block can apply stable pressure to the overlapping part of the two paper tapes under the drive of the cylinder, ensuring that the glue can fully exert its adhesiveness, making the paper tape overlap firm and accurately aligned, effectively avoiding problems such as secondary breakage caused by poor overlapping quality, and ensuring the quality stability of subsequent filter rod processing;

[0035] 3. Reduce manual labor intensity

[0036] Traditional manual overlapping requires operators to constantly monitor the paper tape status, which is labor-intensive. The device of this patent realizes the automated operation of paper tape overlapping, reducing reliance on manual labor, reducing the workload of operators, and avoiding quality risks caused by human error.

[0037] 4. Ensure continuous and stable production

[0038] The components of this patented device work together seamlessly, enabling it to quickly respond to paper tape breakage and automatically reconnect the tape, thus maintaining a continuous and stable production process. This not only helps maintain the normal operating rhythm of the production line but also reduces equipment wear and tear caused by frequent shutdowns and restarts, extends equipment lifespan, and indirectly reduces production costs.

[0039] In summary, this automatic paper splicing device performs excellently in improving production efficiency, ensuring splicing quality, reducing labor intensity, and ensuring production continuity, and can well meet the needs of modern tobacco filter rod production. Attached Figure Description

[0040] The above content of this patent and the following detailed embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are merely examples of the claimed technical solution.

[0041] Figure 1 This is a schematic diagram of the paper tray overlapping device in this patent.

[0042] Figure 2 This is a schematic diagram of the U-shaped pressure block and the cylinder in this patent.

[0043] Figure 3 This is a schematic diagram of the U-shaped pressure block in the raised state in this patent;

[0044] Figure 4 This is a schematic diagram of the U-shaped pressure block in the pressing state in this patent;

[0045] Figure 5 This is a schematic diagram showing the position of the paper roll overlapping device in the forming machine in this patent.

[0046] The reference numerals in the attached figures are explained as follows:

[0047] Paper roll overlap device: 100

[0048] U-shaped pressure block: 10

[0049] Plastic box: 11

[0050] Power connection plate: 12

[0051] Medium plate: 13

[0052] Lower pressure plate: 14

[0053] Piston rod: 15

[0054] Shaft: 20

[0055] Paper guide roller: 30

[0056] Adhesive board: 40

[0057] Cylinder: 50

[0058] Paper tape: 60

[0059] Shell frame: 70

[0060] Paper roll rotary system: 200

[0061] Paper storage box system: 300

[0062] Negative pressure suction box: 400

[0063] Paper accelerator roller: 500 Detailed Implementation

[0064] The detailed features and advantages of this patent are described below in the specific embodiments. The content is sufficient to enable any person skilled in the art to understand the technical content of this patent and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, a person skilled in the art can easily understand the related objectives and advantages of this patent.

[0065] This specification also uses several compound terms to describe devices, components, equipment, etc. that include more than one function, or to assign additional functions to a corresponding device, component, equipment, etc. Those skilled in the art will understand that such compound terms can be implemented by a single or multiple devices, components, equipment, etc., as long as they are reasonable under the interpretation rules of this patent terminology.

[0066] It should be noted that in this specification, similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and interpreted in subsequent figures. In this specification and claims, several terms will be used, and unless otherwise indicated, these terms will be defined as having the following meanings:

[0067] The terms “comprising” or “having” have the same meaning as “containing”, and also include other forms of the term, such as the gerund and singular forms in English, meaning including but not limited to, and not intended to exclude, for example, other elements, components, integers or steps.

[0068] All other terms used herein for special definition are intended to have the general meaning understood by one of ordinary skill in the art, and in particular, meaning that one of ordinary skill in the art, upon reading the claims, specification and drawings of this patent, can directly and without doubt determine how the technical solution of this patent can be implemented.

[0069] Even if there are incomplete descriptions, omissions, or ambiguities in the grammar, words, punctuation, graphics, symbols, etc. of the claims, specification, and drawings of this patent, a person skilled in the art can still arrive at the only correct understanding by reading the claims, specification, and drawings as a whole without extensive reasoning or experimentation, and effectively exclude various incorrect interpretations that are not aimed at achieving the purpose of this patent.

[0070] Those skilled in the art would first choose to read the claims, specification, and drawings of this patent to reasonably interpret the terms; secondly, they would choose to refer to the relevant definitions in other documents published by the applicant before the filing date to reasonably interpret the terms; thirdly, they would choose the references cited in this patent to reasonably interpret the terms; and finally, they would choose to combine the technical dictionaries, technical manuals, reference books, textbooks, national or industry technical standards, etc., commonly used by those skilled in the art to reasonably interpret the terms.

[0071] All references cited in this application are incorporated herein by way of quotation, to the extent that they do not contradict the disclosure herein. It will be apparent to those skilled in the art that products (apparatus, components, devices, compounds, compositions, materials, etc.) and methods (processes, steps, conditions, parameters, equipment, and test methods, equipment, etc.) not specifically described herein can be applied to the implementation of the inventions fully disclosed herein without the need for excessive experimentation. This patent is intended to cover all functional equivalents known in the art of the methods, apparatus, apparatus components, materials, processes, and techniques specifically described herein. All cited references include:

[0072] The following publications are included: Marks' Standard Handbook for Mechanical Engineers (11th edition and other editions prior to the filing date of this application), published by McGraw-Hill, Inc.; DeGarmo's Materials and Processes in Manufacturing (13th edition and other editions prior to the filing date of this application), published by Wiley; Machinery's Handbook (32nd edition and other editions prior to the filing date of this application), published by IndustrialPress Inc.; Mechanical Design Handbook (6th edition and other editions prior to the filing date of this application), edited by Cheng Daxian, published by Chemical Industry Press; and Modern Mechanical Design Handbook (6th edition and other editions prior to the filing date of this application), edited by Wen Bangchun, published by Machinery Industry Press.

[0073] This patent will now be described with reference to the accompanying drawings, in which similar reference numerals denote similar elements. While specific structures and arrangements are discussed, it should be understood that this is done merely for illustrative purposes. Those skilled in the art will recognize that other structures and arrangements can be used without departing from the spirit and scope of this patent. It will be clear to those skilled in the art that this patent can also be used in a variety of other applications.

[0074] like Figures 1-5 As shown, this patent provides a paper roll overlapping device. The paper roll overlapping device 100 is applied in a tobacco filter rod production forming machine. The paper roll is installed in the paper roll rotation system 200 and is transferred to the paper storage box system 300 in the form of paper belt 60 through the paper roll overlapping device 100.

[0075] The paper roll overlapping device 100 includes a U-shaped pressure block 10, a rotating shaft 20, a paper guide roller 30, an adhesive plate 40, and a cylinder 50. The paper roll 60 moves towards the adhesive plate 40 under the drive of the paper guide roller 30. The output end of the cylinder 50 is connected to the U-shaped pressure block 10. Under the action of the rotating shaft 20, the U-shaped pressure block 10 can press the paper roll 60 with glue on the adhesive plate 40 to complete the overlapping of the new and old paper rolls.

[0076] In actual operation, when the paper tape 60 is in normal transmission, the U-shaped pressure block 10 is in a raised state under the action of the cylinder 50, that is, the U-shaped pressure block 10 maintains a certain distance from the adhesive plate 40, which does not affect the normal conveying of the paper tape 60. When the paper tape 60 breaks, the new paper tape end is conveyed to the adhesive plate 40 by the guide roller 30. At this time, when the normally transmitting paper tape 60 passes through the glue box 11, the glue box 11 will automatically spray glue onto a specific part of the paper tape 60 under the control of the control system or the operator. After the glue-sprayed part of the paper tape 60 continues to be transmitted to the adhesive plate 40, the operator or the corresponding auxiliary mechanism places the other end of the broken paper tape 60 on top of the glue-sprayed part. Subsequently, the operator can send a signal command from the control system to switch from the lifting state to the pressing state, causing cylinder 50 to activate. Cylinder 50 retracts, pulling the U-shaped pressure block 10 to rotate around the shaft 20, causing the other end of the U-shaped pressure block 10 to move towards the adhesive plate 40, ultimately pressing it firmly onto the overlapping part of the two paper tapes. Under pressure, the adhesive on the overlapping part of the two paper tapes can fully exert its adhesiveness, firmly bonding the two together and completing the paper tape overlap. After the overlap is completed, cylinder 50 changes from retraction to extension, pushing the U-shaped pressure block 10 to rotate in the opposite direction around the shaft 20, causing its other end to detach from the adhesive plate 40. At this time, the paper tape 60 continues to travel normally under the drive of the guide roller 30, and the entire automatic paper splicing process is completed.

[0077] Specifically, multiple guide rollers 30 can be provided and arranged symmetrically. They are used to drive the paper belt 60 at different positions along its transmission path. The paper belt 60 passes through the adhesive plate 40 in its transmission path. The guide rollers 30 are installed at appropriate positions along the transmission path of the paper belt 60. Their main function is to drive the paper belt 60 to travel stably along a preset path through their own rotation, ensuring that the paper belt 60 can be continuously and smoothly conveyed during the production process. During transmission, the paper belt 60 passes through the guide rollers 30 and the adhesive plate 40 in sequence. The adhesive plate 40 provides a flat and stable operating platform for the overlap of the paper belt 60.

[0078] Specifically, the fixed end of the cylinder 50 is fixed to the housing frame 70 of the paper overlap device 100. As an example, the cylinder 50 can be connected to the fixed base of the housing frame 70 of the paper overlap device 100 by means of hinge. This connection method allows the cylinder 50 to rotate flexibly within a limited range, providing more room for its extension and retraction. The output end of the cylinder 50 is hinged to the U-shaped pressure block 10. When the cylinder 50 moves in extension and retraction, it generates a pulling or pushing force, thereby pulling the U-shaped pressure block 10 to rotate around the rotating shaft 20, realizing the pressing and disengaging action between the other end of the U-shaped pressure block 10 and the adhesive plate 40.

[0079] Specifically, the U-shaped pressure block 10 includes a power connecting plate 12, a middle plate 13, and a lower pressure plate 14. The power connecting plate 12 is connected to the middle plate 13, and the middle plate 13 is connected to the lower pressure plate 14 via a rotating shaft 20. The power connecting plate 12 is hinged to the output end (i.e., piston rod) of the cylinder 50. The output end of the cylinder 50 generates a pulling or pushing force in a direction perpendicular to the power connecting plate 12. The pulling or pushing force generated by the output end of the cylinder 50 is transmitted along the power connecting plate 12 to the middle plate 13, and then through the middle plate 13 to the lower pressure plate 14. Under the action of the rotating shaft 20, the lower pressure plate 14 moves in the same direction as the output end of the cylinder 50, that is, the lower pressure plate 14 moves downward to press the new and old paper tapes together, thereby completing the overlap. The cylinder used in this patent can be a cylinder already used in the prior art. As an example, the cylinder in this patent can refer to the cylinder in Chinese patent document CN103447203A, which consists of a piston cylinder body, a piston and a piston rod. The piston divides the inner cavity of the piston cylinder body into an upper cavity and a lower cavity, and the piston rod can extend or retract from the lower cavity of the piston cylinder body.

[0080] Specifically, the cylinder 50 is positioned below the transmission path of the paper tape 60, and the lower pressure plate 14 is at least partially right-angled. When the U-shaped pressure block 10 is in the pressing state, the cylinder 50 indirectly drives the lower pressure plate 14 to move downwards. At this time, the right-angled shape of the lower pressure plate 14 can be adapted to connect with the adhesive plate 40. (Refer to...) Figure 4In this design, the length of the power connection plate 12 is less than that of the lower pressure plate 14. This patent employs a U-shaped pressure block 10 in conjunction with the cylinder 50. Thus, only the lower pressure plate 14 is used above the transmission path of the paper tape 60 for pressing new and old paper tapes, while all other power control components are located below the transmission path of the paper tape 60. This saves space in the production equipment. Furthermore, referring to… Figure 5 It can be seen that the paper roll rotation system 200 and the paper storage box system 300 connected before and after the paper roll overlap device 100 are larger in volume, so there is more space for equipment placement under the paper roll overlap device 100, providing more design space for the other components of the forming machine.

[0081] Specifically, the rotating shaft 20 is fixed on the column of the housing frame 70 of the paper roll overlapping device 100, and the U-shaped pressure block 10 rotates freely around the rotating shaft 20.

[0082] Specifically, a glue box 11 is also installed on the U-shaped pressure block 10. The glue box 11 is positioned above the path of the paper tape 60 from the guide roller 30 to the adhesive plate 40, and maintains an appropriate distance from the upper surface of the paper tape 60.

[0083] More specifically, the glue box 11 stores glue for overlapping the paper tapes 60, and has a small glue outlet at the bottom to evenly spray the glue onto the paper tapes 60 passing below it. More specifically, the glue box 11 is located inside the lower pressure plate 14 and is arranged between the bonding plate 40 and the middle plate 13.

[0084] Specifically, this patent includes an automatic paper-receiving and overlapping device 100 at a specific workstation in the tobacco filter rod production workshop. The guide roller 30 is fixed to the equipment housing frame 70 via a bracket. The paper strip 60 passes through the guide roller 30, and smooth transmission is achieved through the rotation of the guide roller 30. An adhesive plate 40 is installed below the upper and lower guide rollers 30, with a smooth and flat surface, providing a reliable support surface for the overlapping of the paper strip 60. (Reference) Figure 5 After the paper tape 60 is overlapped, it moves to the paper acceleration roller 500 under the drive of the guide roller 30, and further enters the storage box system 300 for storage under the drive of the paper acceleration roller 500. When the tobacco filter rod production forming machine is running, the paper tape 60 is output to the forming machine through the negative pressure suction box 400 for the production of tobacco filter rods. The storage box system 300 of this patent can adopt the storage box system in the prior art. As an example, the storage box of Chinese patent document CN221274774U is used as the storage box system 300 of this patent. The storage box (i.e., the storage box system 300) includes:

[0085] The paper storage box has a paper storage cavity and a paper feeding cavity that are connected inside. The paper storage cavity has a paper inlet and the paper feeding cavity has a paper feeding outlet.

[0086] The paper feed roller (i.e., paper acceleration roller 500) is located at the paper feed port and is used to transport the paper strip (i.e. paper belt 60) of the formed paper roll to the paper storage cavity.

[0087] The detection component, located inside the paper storage chamber, is used to detect the amount of paper in the paper storage chamber;

[0088] The control component (i.e., the control system), the paper feed roller, and the detection component are all connected to the control component via signals. The control component can adjust the rotation speed of the paper feed roller according to the amount of paper measured by the detection component.

[0089] The paper storage chamber and the paper feeding chamber are connected to the paper inlet and the paper feeding outlet of the paper storage box, respectively. The paper storage chamber is also connected to the paper feeding chamber so that the paper strips of the formed paper roll enter the paper storage chamber through the paper inlet and are then discharged from the paper feeding outlet through the paper feeding chamber.

[0090] To prevent paper strips from accumulating inside the paper storage box, the connection between the paper storage chamber and the paper feeding chamber should be a certain distance away from both the paper inlet and the paper feeding port. The specific locations of the paper inlet, the paper feeding port, and the connection between the paper storage chamber and the paper feeding chamber are determined based on the actual structure and dimensions of the paper storage box in production.

[0091] The paper storage chamber and the paper feeding chamber are arranged vertically side by side. The paper inlet and the paper feeding outlet are both located at the top of the paper storage box, and the connection between the paper storage chamber and the paper feeding chamber is located at the bottom of the paper storage box.

[0092] The paper feed roller is located at the paper feed port. The paper strip passes around the paper feed roller and is fed into the paper storage cavity under the action of friction between the paper feed roller and the paper strip. The paper feed roller is usually set as a cylindrical roller, and its specific number is determined according to the type of paper strip and the designed paper feed speed in actual production.

[0093] To facilitate the adjustment and control of the paper feed roller speed, preferably, the paper feed roller can be configured to include a roller part and a drive motor for driving the roller part. The drive motor is mounted in the paper storage cavity via a motor mounting bracket, and the roller part is sleeved on the output shaft of the drive motor.

[0094] Therefore, the control component can adjust the speed of the drive unit by adjusting the speed of the drive motor, thereby adjusting the input speed of the paper strip. Compared with manually driving the paper feed roller, it has a high degree of automation, is easy to operate, and achieves precise adjustment of the speed of the paper feed roller with high adjustment accuracy.

[0095] The detection component is used to detect the quality of the paper in the storage cavity. It can be set as a photoelectric sensor or an ultrasonic sensor. The paper strip at the bottom is located on the signal propagation path of the sensor. When the sensor can receive the reflected signal transmitted by the reflective component or the receiver located at the end of the signal propagation path can receive the incident signal, the signal propagation path of the sensor is not blocked by the paper strip, indicating that the amount of paper in the storage cavity is too low and the control component needs to increase the speed of the paper feed roller.

[0096] The detection assembly includes a photoelectric sensor located at the bottom of the paper storage cavity and a reflective component located at the end of the photoelectric sensor's illumination path. The two components are respectively located on the inner side of the paper storage cavity and the inner side of the paper feeding cavity.

[0097] Alternatively, the photoelectric sensor and the reflective assembly can be positioned on a pair of opposing inner surfaces of the paper storage cavity in an orthogonal direction.

[0098] The control component is connected to the paper feed roller and the detection component by signal. It is used to adjust the rotation speed of the paper feed roller according to the quality in the paper storage cavity, thereby controlling the quality in the paper storage cavity. Its specific structure and connection relationship are determined according to the actual production needs and with reference to the existing technology, and will not be described in detail here.

[0099] The control component can adjust the speed of the feed roller according to the amount of paper in the paper storage chamber, thereby controlling the amount of paper in the paper storage chamber and avoiding insufficient paper in the paper storage box to provide enough time for changing the formed paper roll;

[0100] The paper feeding chamber is connected to the paper storage chamber. The paper feeding chamber can lift the paper strips in the paper storage chamber, which prevents the paper strips from piling up in the paper storage box and causing them to stick together and tangle.

[0101] Working principle:

[0102] When the paper tape 60 is in normal production operation, the guide roller 30 rotates continuously, and the paper tape 60 passes at a constant speed below the glue box 11 and above the adhesive plate 40 under its drive. At this time, the glue box 11 is in the closed state and no glue spraying operation is performed. The U-shaped pressure block 10 is in the raised state under the support of the cylinder 50, and there is enough space between its side arm end and the adhesive plate 40 for the paper tape 60 to pass through.

[0103] Once the paper tape 60 breaks, a signal will be sent through a sensing device (such as a sensor), or the operator can directly control the guide roller 30 to stop rotating. The operator will then pull the rear end of the broken paper tape above the adhesive plate 40. Afterward, the control system will issue a command or the operator can manually control the glue box 11 to start, while simultaneously controlling the front end of the broken paper tape to move forward under the drive of the guide roller 30. As it passes through the glue box 11, the glue box 11 sprays glue onto the lower surface of the paper tape.

[0104] After the front paper tape, coated with adhesive, moves above the bonding plate 40 and stops, the operator places the end of the rear paper tape overlapping the adhesive portion of the front paper tape. Next, the operator activates the control button to switch from the lifting state to the pressing state. At this time, the piston rod of cylinder 50 retracts, pulling the U-shaped pressure block 10 to rotate around the shaft 20. Its lower pressure plate 14 moves downwards and presses against the overlapping area of ​​the old and new paper tapes.

[0105] After a period of pressure application to ensure a firm bond between the two paper tapes, the piston rod of cylinder 50 extends, the U-shaped pressure block 10 returns to its raised position, and the glue box 11 closes. The guide roller 30 resumes continuous rotation, driving the bonded paper tape forward, and production returns to normal.

[0106] The terms and expressions used in this specification are for illustrative purposes and not for limitation. Their use is not intended to exclude any equivalents of the features or portions thereof shown, but rather to facilitate the understanding that various modifications may be possible within the scope of this patent claim. Therefore, it should be understood that while this patent has been specifically disclosed through preferred embodiments, exemplary embodiments, and optional features, variations or modifications of the concepts disclosed herein may be adopted by those skilled in the art, and such variations and modifications are therefore considered to be within the scope of this patent as defined by the appended claims. The specific embodiments given in this specification are examples of useful embodiments of this patent, and it will be apparent to those skilled in the art that this patent can be implemented using many variations of the devices, device components, and method steps disclosed herein.

[0107] The foregoing description of specific embodiments fully discloses the general features of this patent, enabling others to easily modify and / or adapt such embodiments for various applications by applying knowledge within the scope of the art, without excessive experimentation or deviation from the general concept of this patent. Therefore, based on the teachings and guidance provided herein, it is intended that such modifications and alterations be included within the meaning and scope of equivalents of the disclosed embodiments. It should be understood that the wording or terminology used herein is for descriptive purposes and not intended to be limiting; thus, the wording or terminology in this specification will be interpreted by those skilled in the art based on the foregoing teachings and guidance.

[0108] Furthermore, the scope of this patent should not be limited to any of the exemplary embodiments described above, but only to the appended claims and their equivalents.

Claims

1. A paper roll overlap device, characterized in that, The paper roll overlap device includes a U-shaped pressure block, a rotating shaft, a paper guide roller, an adhesive plate, and a cylinder. The paper roll moves in the form of a paper strip towards the bonding plate under the drive of the guide roller. A glue box is arranged inside the U-shaped pressure block, and the glue box is used to supply glue to the paper tape. The cylinder is connected to the U-shaped pressure block via the rotating shaft, and the cylinder drives the U-shaped pressure block to switch between a raised state and a pressed state. When the U-shaped pressure block is in the raised state, the paper tape runs without contact with the U-shaped pressure block; When the U-shaped pressure block is in the pressing state, the U-shaped pressure block presses the paper tape with the glue onto the adhesive plate to overlap.

2. The paper roll overlapping device according to claim 1, characterized in that, The cylinder includes a piston rod. The U-shaped pressure block includes a power connection plate, a middle plate, and a lower pressure plate. One end of the power connection plate is connected to the output end of the cylinder. The other end of the power connection plate is connected to the middle plate, and the middle plate is connected to the lower pressure plate via the rotating shaft. When the U-shaped pressure block is in the raised state, the thrust generated by the extended piston rod causes the paper tape to run without contact with the U-shaped pressure block; When the U-shaped pressure block is in the pressing state, the tension generated by the retraction of the piston rod causes the middle plate connected to the power connecting plate to drive the lower pressure plate to move downward around the rotating shaft. The lower pressure plate presses the paper tape with the glue in the adhesive plate to overlap.

3. The paper roll overlapping device according to claim 2, characterized in that, One end of the cylinder is fixed to the housing of the paper roll overlapping device. The output end of the cylinder is hinged to the power connection plate.

4. The paper roll overlapping device according to claim 2, characterized in that, The cylinder is positioned below the paper tape drive path.

5. The paper roll overlap device according to claim 4, characterized in that, The lower pressure plate is at least partially right-angled. When the U-shaped pressure block is in the pressing state, the right-angled shape of the lower pressure plate can be adapted to and connected with the adhesive plate.

6. The paper roll overlapping device according to claim 5, characterized in that, The length of the power connection plate is less than that of the lower pressure plate.

7. The paper roll overlapping device according to claim 2, characterized in that, The glue box is located inside the lower pressure plate.

8. The paper roll overlapping device according to claim 7, characterized in that, The adhesive box is arranged between the adhesive plate and the middle plate.

9. The paper roll overlapping device according to claim 1, characterized in that, Multiple paper guide rollers are provided.

10. The paper roll overlapping device according to claim 9, characterized in that, The paper guide rollers are arranged symmetrically, and the paper strip is driven between the paper guide rollers.

Images