A paper guiding member with self-adapting tension and a paper receiving machine

Abstract

The utility model relates to the paper tension adjusting field of corrugated board, especially a paper guide component with self -adaptation tension adjusting and paper receiving machine, contain wallboard and set up on wallboard many groups are used for receiving paper's roll axle part, its characterized in that, at least one group roll axle part is movably connected with wallboard, at least one group adjusting mechanism is also arranged on wallboard, the executing end of adjusting mechanism is the movable two -way response part, and the two -way response part is connected with any one group roll axle part, the adjusting mechanism selected by the utility model has two -way response part, the two -way response part is for responding to the two scenes of tension increasing and reducing, the roll axle part is movably connected with wallboard, when stress increases or reduces, the two -way response part changes the position of roll axle part to respond to the paper tension step situation, and the new tension adjusting effect solves the problem that paper cracks and influences subsequent paper production due to the unadjustable paper tension.

Description

Technical Field

[0001] This utility model relates to the field of tension adjustment of paper in corrugated cardboard, and more particularly to a paper guide component and paper splicer with adaptive tension adjustment. Background Technology

[0002] In the corrugated cardboard production line, there is a paper splicer to improve paper changing efficiency. The paper splicer is used in conjunction with the single facer. The paper in the paper splicer is pulled by the single facer, thus creating the phenomenon of paper feeding. Under normal circumstances, the speed of the paper in the paper splicer is at least 200m / min. Of course, this speed is related to the customer and the selected fabric. If the weight is low, the speed of the paper splicer will be slower.

[0003] During paper splicing, the paper tension inside the splicer changes. Current splicers, limited by their compact structure, cannot be designed with adjustable tension mechanisms. For example, in patent CN202021051145.1, titled "A Full Servo Splicer for Corrugated Board," although the document mentions paper tension adjustment, the traveling roller assembly is merely a buffer design during splicing, only to achieve basic automatic paper changing functionality. Similarly, this situation is also seen in another prior art document, patent CN202323635691.6, titled "A Splicer with Pin Positioning." This document describes a paper storage mechanism 4 used to ensure constant tension of the raw paper F1 throughout the splicer. The raw paper F1 released from the paper storage mechanism 4 directly enters the single-facer (not shown in the figure).

[0004] It's important to understand that the true need for tension adjustment lies in regulating the paper tension throughout the entire paper production line. Within the splicer, the movement of the traveling roller assembly inevitably causes tension changes in the paper's transport. Sudden tension changes are a natural manifestation of dynamic characteristics. More specifically, the rollers that transport the paper are fixed; they only rotate, not move. When the tension change exceeds the paper's tensile strength, the paper will tear. For example, if the paper can withstand a maximum force of 800N, but in the splicer it experiences 700N, there might be a momentary stress of 1000N, causing it to tear. Especially given the current industry preference for lower grammage paper, which means lower tensile strength, the two existing technologies mentioned above do not truly achieve tension adjustment for a single sheet of paper. Furthermore, these technologies are clearly unsuitable for low-grammage paper. In addition, tension changes on the paper can not only increase but also decrease, and reduced paper tension will affect subsequent production processes. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a paper guide component and paper splicer with adaptive tension adjustment, used to alleviate sudden tension changes and resolve issues of paper cracking and loosening.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a paper guide component with adaptive tension adjustment, comprising a wall plate and multiple sets of rollers for receiving paper disposed on the wall plate, characterized in that at least one set of rollers is movably connected to the wall plate, and at least one set of adjustment mechanism is provided on the wall plate, wherein the actuating end of the adjustment mechanism is a movable bidirectional response part, and the bidirectional response part is connected to any set of rollers.

[0007] The beneficial effects of this utility model are:

[0008] The adjustment mechanism selected in this utility model has a bidirectional response section, which is designed to cope with both increasing and decreasing tension. The roller section and the wall plate are connected movably. When the stress increases or decreases, the bidirectional response section changes the position of the roller section to cope with the step change in paper tension. The new tension adjustment effect solves the problem of paper cracking caused by unadjustable tension and the impact on subsequent paper production.

[0009] The roller section has at least two sets to ensure balanced paper feeding.

[0010] Specifically, based on the distribution of the paper, the roller section can be divided into four parts from top to bottom:

[0011] The first layer consists of a first fixed roller, the second layer consists of a floating roller assembly, the third layer consists of a guide roller and a second fixed roller, and the fourth layer consists of a brake roller. The operating principle of the guide roller is existing technology, and its structure will not be described in detail.

[0012] The moving roller assembly is slidably connected to the wall panel. The moving roller assembly contains multiple moving rollers. To provide a more complete explanation of this solution, we will take three moving rollers as an example. It should be noted that this example is not intended to further limit the number of moving rollers.

[0013] Combination Figure 4 , 5 As shown in Figures 10, 11, and 12, the paper passes over the brake roller, the first traveling roller, the first fixed roller, the second traveling roller, the guide roller, the third traveling roller, and the second fixed roller in sequence.

[0014] When releasing the buffered paper, the floating roller assembly moves closer to the first fixed roller. During the process of shortening the distance between the two, the inertia of the floating roller assembly causes tension fluctuations in the paper. For example, the speed of the floating roller assembly is to be increased to 50 m / min per unit time, but in reality, the floating roller assembly reaches 51 m / min and then returns to 50 m / min. This control system and mechanical response characteristic makes the paper prone to exceeding its tensile strength. This state of alternating tension and looseness can easily lead to paper cracking. In particular, the paper weight used now is lighter than before. For example, 42g paper has a lower tensile strength.

[0015] The wall panel has a roller seat side plate corresponding to the first fixed roller. The inner surface of the roller seat side plate has a guide rail. Roller fixing blocks are provided at both ends of the first fixed roller, and the roller fixing blocks are slidably connected to the guide rail. The adjustment mechanism includes two implementation methods. The first method is a spring. When using the spring, a retaining ring is fitted onto both ends of the first fixed roller. Specifically, the first fixed roller includes a mandrel and a roller. The roller is fitted onto the mandrel and rotates on the mandrel under the traction of the paper. The retaining ring is fitted onto the mandrel of the first fixed roller, and a pair of symmetrical connecting seats are provided on the retaining ring. The connecting seats provide constraint to the spring. The mounting fulcrum of the fixed roller has a bidirectional response section where one end of the spring connects to the connecting seat, and the other end of the spring connects to the wall plate, ensuring the spring is always under tension. The advantage of using a spring is that it passively adjusts the tension. When the traveling roller assembly accelerates, its acceleration is rapid, but it also requires a period of acceleration time. When releasing the buffered paper, the paper tension begins to increase. Since the traveling roller assembly is heavier than the first fixed roller, the relatively lighter first fixed roller is first affected by the paper tension, pulling the spring to move on the roller seat side plate (e.g., Figure 10 As shown, it moves to the right in the diagram to counteract the tension fluctuation of the paper F1, while the spring stores energy, and after the speed of the traveling roller assembly steadily increases (in... Figure 10 In the middle, the traveling roller assembly moves to the left in the diagram), the tension of the paper F1 begins to decrease. At this time, the spring releases energy, pulling the first fixed roller to the left in the diagram (as shown). Figure 10 The travel roller assembly moves to the left (as shown in the diagram). This adaptive adjustment of the spacing effectively counteracts tension fluctuations on the paper F1. Similarly, when splicing paper, the travel roller assembly must be reset, and it must move to the left (as shown in the diagram). Figure 10 As the tension of paper F1 increases, the first fixed roller moves to the right as shown in the figure, thus counteracting the tension fluctuations on paper F1.

[0016] Another implementation method is to use a piston-type pneumatic piston. The piston of the pneumatic piston is connected to the roller fixing block. In this case, the bidirectional response part is the piston in the pneumatic piston. The advantage of using a pneumatic piston is that it actively adjusts the tension. Compared with the spring laterally, the pulling force of the spring is directly proportional to its stretching length. The pneumatic piston provides a fixed force. Assuming that the pulling force to move the first fixed roller 10cm requires 30N, the pneumatic piston provides 10N of force to the roller fixing block, and the remaining 20N of pulling force is provided when the paper is taut. When selecting a spring, the pulling force to activate the spring's stored energy should gradually increase. Although a spring with a suitable elastic coefficient can be selected according to the fabric, in reality, some manufacturers not only... Even when producing paper with the same fabric, different fabrics of paper have different tensile strength values. Therefore, when dealing with high-grammage paper, the pressure applied to the roller fixing block can be appropriately reduced, and the paper tension can be appropriately increased to reduce the likelihood of paper loosening. Conversely, when dealing with low-grammage paper, the pressure applied to the roller fixing block can be appropriately increased, and the paper tension can be appropriately reduced to reduce the likelihood of paper tearing. In this way, the tightness of the paper can be considered simultaneously when producing paper with different fabrics. Furthermore, when used in conjunction with other testing mechanisms, if the tension on paper F1 is detected to be relatively high, the pneumatic piston can actively increase the amount of compressed air to ensure that paper F1 is within a more suitable tension range.

[0017] In this specific implementation, the adjustment mechanism has three sets. The second set of adjustment mechanisms is used in conjunction with the paper guide roller. Similarly, the second set of adjustment mechanisms ensures that the paper is taut when fed into the single-facer or double-facer, that is... Figure 11 If the tension of paper F2 fluctuates, it can cause the core paper and face paper to shift when they are bonded together.

[0018] The third adjustment mechanism is used to adjust the tension of the F3 paper.

[0019] In some cases, paper may exhibit a loose edge, meaning one side of the paper is tight while the other is loose. There are many reasons for this, such as the paper roll having this issue at the factory, the paper being applied crookedly during manual tape application, or the paper roll being improperly placed on the paper rack. To address this problem, the first fixed roller can move on the roller seat side plate using a synchronous gear and chain drive, while the guide roller moves on the wall plate using a slider and guide rail drive. This is because, when dealing with a loose edge, the synchronous gear method effectively controls the offset. After the paper passes through the guide roller, to ensure the final paper delivery is balanced, the slider and guide rail drive method causes the guide roller to make an adaptive adjustment. In other words, the guide roller is relatively tilted under the fine adjustment of the spring, so the tilt of the paper remains within the error range.

[0020] The above layout is designed for situations where there is a tension edge. It provides a specific layout for the guide roller and the first fixed roller. In cases where there is no tension edge, the first fixed roller and the guide roller can be freely selected to use guide rails or gear drives.

[0021] Similarly, the second moving roller can also be moved by a guide rail or by a chain drive, just like the first fixed roller.

[0022] It should be noted that in other embodiments, the remaining floating rollers can also be selected to use the adjustment mechanism.

[0023] The paper guide component of this utility model is used in a paper splicer. The paper splicer also includes a paper rack and a cutter seat, a paper changing carriage and a paper changing roller. The paper rack provides the original paper roll and the spare paper roll. The paper changing carriage carries the connection between the new paper roll and the old paper. The paper changing roller feeds the new paper from the spare paper roll into the paper changing carriage. The cutter seat cuts off the remaining material from the old paper. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention.

[0025] Figure 2 This is a side view of the present invention.

[0026] Figure 3 This is a perspective view of the present invention in cross-section.

[0027] Figure 4 yes Figure 3 Enlarged diagram of point A.

[0028] Figure 5 yes Figure 3 Enlarged diagram of point B.

[0029] Figure 6 yes Figure 1 Another 3D view from another direction.

[0030] Figure 7 yes Figure 6 Enlarged diagram of point C.

[0031] Figure 8 yes Figure 1 A 3D view from another direction.

[0032] Figure 9 yes Figure 8 An enlarged schematic diagram of point D.

[0033] Figure 10 This is a cross-sectional view of the present invention.

[0034] Figure 11 yes Figure 10 Enlarged diagram of point E.

[0035] Figure 12 yes Figure 10 Enlarged schematic diagram at point F.

[0036] Figure 13 This is a schematic diagram of the assembly of the pneumatic piston and the first roller. Detailed Implementation

[0037] like Figure 1-13 As shown, a paper guide component with adaptive tension adjustment includes a wall plate 1 and multiple sets of rollers for receiving paper disposed on the wall plate 1. The characteristic is that at least one set of rollers is movably connected to the wall plate 1, and at least one set of adjustment mechanism is provided on the wall plate 1. The actuating end of the adjustment mechanism is a movable bidirectional response part, and the bidirectional response part is connected to any set of rollers.

[0038] The beneficial effects of this utility model are:

[0039] The adjustment mechanism selected in this utility model has a bidirectional response section, which is designed to cope with two scenarios: increased tension and decreased tension. The roller shaft and the wall plate 1 are movably connected. When the stress increases or decreases, the bidirectional response section changes the position of the roller shaft to cope with the step tension of the paper. The new tension adjustment effect solves the problem of paper cracking caused by unadjustable tension and the impact on subsequent paper production.

[0040] Specifically, based on the distribution of the paper, the roller section can be divided into four parts from top to bottom:

[0041] The first layer consists of a first fixed roller 21, the second layer consists of a floating roller assembly 22, the third layer consists of a guide roller 23 and a second fixed roller 24, and the fourth layer consists of a brake roller 25. The operating principle of the guide roller is existing technology, and its structure will not be described in detail.

[0042] The moving roller assembly 22 is slidably connected to the wall panel 1. The moving roller assembly 22 contains multiple moving rollers. To provide a more complete explanation of this solution, we will take three moving rollers as an example. It should be noted that this example is not intended to further limit the number of moving rollers.

[0043] Combination Figure 4 , 5 As shown in 10, 11, and 12, the paper passes through the brake roller 25, the first floating roller 22a, the first fixed roller 21, the second floating roller 22b, the guide roller 23, the third floating roller 22c, and the second fixed roller 24 in sequence.

[0044] When releasing the buffered paper, the floating roller assembly 22 moves closer to the first fixed roller 21. During the process of shortening the distance between the two, the inertia of the floating roller assembly 22 causes tension fluctuations in the paper. For example, the speed of the floating roller assembly 22 needs to be increased to 50 m / min per unit time, but in reality, the floating roller assembly 22 reaches 51 m / min and then returns to 50 m / min. This characteristic of the control system and mechanical response can easily exceed the tensile strength. This state of alternating tension and looseness can easily cause the paper to crack. In particular, the paper weight used now is lighter than before. For example, 42g paper has a lower tensile strength.

[0045] The wall panel 1 is provided with a roller seat side plate 101 corresponding to the first fixed roller 21. The inner surface of the roller seat side plate 101 is provided with a guide rail 102. The two ends of the first fixed roller 21 are provided with roller fixing blocks 21a, which are slidably connected to the guide rail 102. The adjustment mechanism includes two implementation methods. The first method is a spring 31. When using the spring 31, the two ends of the first fixed roller 21 are fitted with retaining rings 21b. Specifically, the first fixed roller 21 includes a mandrel and a roller. The roller is fitted on the mandrel and rotates on the mandrel under the traction of the paper. The retaining rings 21b are fitted on the mandrel of the first fixed roller 21. The retaining rings 21b are provided with a pair of symmetrical connecting seats 21c. The connecting seats 21c provide constraint to the spring 31 on the first fixed roller 21. The mounting fulcrum, the connecting seat 21c, is the mounting fulcrum that provides constraint to the spring 31 and the first fixed roller 21. The bidirectional response part is one end of the spring 31 connected to the connecting seat 21c, and the other end of the spring 31 connected to the wall plate 1, so that the spring 31 is always in a stretched state. The advantage of using the spring 31 is that it is a passive tension adjustment. When the floating roller assembly 22 accelerates, the acceleration of the floating roller assembly 22 is very fast, but it also needs a time to accelerate. When the buffered paper is released, the tension of the paper F1 begins to increase. Since the weight of the floating roller assembly 22 is greater than that of the first fixed roller 31, the relatively lighter first fixed roller 31 is first affected by the tension of the paper F1, pulling the spring 31 to move on the roller seat side plate 101 (e.g. Figure 10 As shown, it moves to the right in the diagram to counteract the tension fluctuation of the paper F1. Meanwhile, spring 31 stores energy, and after the speed of the traveling roller assembly 22 steadily increases (in... Figure 10 In the middle, the traveling roller assembly moves to the left in the figure), and the tension of the paper F1 begins to decrease. At this time, the spring 31 pulls the first fixed roller 21 to the left in the figure. This behavior of adaptively adjusting the spacing can effectively counteract the tension fluctuations on the paper F1. Similarly, when receiving paper, the position of the traveling roller assembly 22 must be reset, that is, the traveling roller assembly 22 must move to the left in the figure (as shown). Figure 10 As shown in the figure, when the tension of the paper F1 increases, it drags the first fixed roller 21 to the right in the figure to counteract the tension fluctuation on the paper F1.

[0046] Another implementation uses a piston-type pneumatic piston 51. The piston of the pneumatic piston 51 is connected to the roller fixing block 21a. In this case, the bidirectional response unit is the piston in the pneumatic piston 51. The advantage of using the pneumatic piston 51 is that it actively adjusts the tension. Compared with the spring 31 laterally, the pulling force of the spring 31 is directly proportional to its stretching length. The pneumatic piston 51 provides a fixing force. Assuming that the pulling force to move the first fixed roller 21 by 10cm is 30N, the pneumatic piston 51 provides a force of 10N to the roller fixing block 21a, and the remaining 20N of pulling force is provided when the paper is taut. When selecting the spring 31, the pulling force to pull the energy stored in the spring 31 should gradually increase. Although a spring 31 with a suitable elastic coefficient can be selected according to the fabric, In reality, some manufacturers produce paper with different fabrics than just the same material. Different fabrics also have different tensile strengths. Therefore, when dealing with high-grammage paper, the pressure applied to the roller fixing block 21a can be appropriately reduced to increase the paper tension and reduce the likelihood of the paper becoming loose. Conversely, when dealing with low-grammage paper, the pressure applied to the roller fixing block 21a can be appropriately increased to reduce the paper tension and reduce the likelihood of the paper cracking. In this way, the tightness of the paper can be considered simultaneously when producing paper with different fabrics. Furthermore, when used in conjunction with other testing mechanisms, if the tension on paper F1 is detected to be relatively high, the pneumatic piston 51 can actively increase the amount of compressed air to ensure that paper F1 is within a more suitable tension range.

[0047] In another embodiment, the adjusting device includes a transmission mechanism consisting of a first motor and a chain. The bidirectional response part is a positioning block (not shown in the figure) fixed on one or more links of the chain. The roller fixing block 21a is connected to the positioning block. A drive gear is sleeved on the motor shaft of the first motor. The drive gear meshes with the chain. Under the action of the first motor, the drive gear moves the first fixed roller 21 through the chain.

[0048] In this specific implementation, the adjustment mechanism has three sets. The second set of adjustment mechanisms is used in conjunction with the paper guide roller 23. Similarly, the second set of adjustment mechanisms ensures that the paper passing to the single-facer or double-facer is taut, that is... Figure 11 If the tension of paper F2 fluctuates, it can cause misalignment between the core paper and the face paper.

[0049] The third adjustment mechanism is used to adjust the tension of the F3 paper.

[0050] In some cases, paper may exhibit a loose edge, meaning one side of the paper is tight while the other is loose. There are many reasons for this, such as the paper roll having this issue at the factory, the paper being applied crookedly during manual tape application, or the paper roll being improperly placed on the paper rack. To address this problem, the first fixed roller 21 can also move on the roller seat side plate 101 using a synchronous gear and chain (not shown in the figure) transmission method. The motor shaft of the second motor drives the chain to rotate. The synchronous gears rotate, and the paper guide roller 23 moves on the wall plate 1 using the transmission method of the roller fixing block 21a and the guide rail 102. This is because, when dealing with the tightness of the paper, the synchronous gears can effectively control the offset. After the paper passes through the paper guide roller 23, in order to ensure that the paper is finally delivered in a balanced manner, the transmission method of the roller fixing block 21a and the guide rail 102 will cause the paper guide roller 23 to make an adaptive adjustment. That is to say, the paper guide roller 23 is relatively tilted under the fine adjustment of the spring 31. Of course, the tilt of the paper is still kept within the error range.

[0051] The above layout is designed for situations where there is a tension edge. It provides a specific layout for the guide roller 23 and the first fixed roller 21. In the absence of a tension edge, the first fixed roller 21 and the guide roller 23 can freely choose either the guide rail 102 or a gear drive.

[0052] Similarly, the second moving roller 22 can also be moved by the guide rail 102 or by chain drive, just like the first fixed roller 21.

[0053] It should be noted that in other embodiments, the remaining floating rollers can also be selected to use the adjustment mechanism.

[0054] Similarly, the second moving roller 22b can also be moved by the guide rail 102 or by chain drive, just like the first fixed roller 21.

[0055] The paper guide component of this utility model is used in a paper splicer. The paper splicer also includes a paper rack 41, a paper changing carriage 42, and a paper changing roller section 43. The paper rack 41 provides the original paper roll and the spare paper roll. The paper changing carriage 42 carries the connection between the new paper roll and the old paper. The paper changing roller section 43 feeds the new paper from the spare paper roll into the paper changing carriage 42.

[0056] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A paper guide component with adaptive tension adjustment, comprising a wall plate and multiple sets of roller sections disposed on the wall plate for receiving paper, characterized in that, At least one set of roller sections is movably connected to the wall panel, and at least one set of adjustment mechanisms is provided on the wall panel. The actuating end of the adjustment mechanism is a movable bidirectional response part, which is connected to any set of roller sections.

2. The paper guide component with adaptive tension adjustment according to claim 1, characterized in that, The inner surface of the wall panel is equipped with a guide rail, and the two ends of the roller shaft are equipped with roller fixing blocks, which are slidably connected to the guide rail.

3. A paper guide component with adaptive tension adjustment according to claim 1, characterized in that, The roller section has synchronous teeth at both ends, and a chain is provided on the inner surface of the wall plate. The roller section meshes with the chain through the synchronous teeth.

4. A paper guide component with adaptive tension adjustment according to claim 1, characterized in that, The regulating mechanism is a passive regulating structure.

5. A paper guide component with adaptive tension adjustment according to claim 4, characterized in that, The adjustment mechanism is a spring, and the bidirectional response part is one end of the spring connected to the roller shaft, while the other end of the spring is connected to the wall plate.

6. A paper guide component with adaptive tension adjustment according to claim 1, characterized in that, The regulating mechanism is an active regulating structure.

7. A paper guide component with adaptive tension adjustment according to claim 6, characterized in that, The adjusting mechanism is a piston-type pneumatic piston, and the bidirectional response part is the piston of the pneumatic piston, which is connected to the roller shaft; or the adjusting mechanism includes a transmission mechanism composed of a first motor and a chain, and the bidirectional response part is a positioning block fixed on one or more links of the chain. The roller fixing block is connected to the positioning block. Under the action of the first motor, a drive gear is sleeved on the motor shaft of the first motor, and the drive gear realizes the movement of the first fixed roller through the chain.

8. A paper guide component with adaptive tension adjustment according to claim 5, characterized in that, The adjustment mechanism has at least two sets, at least one set of adjustment mechanism is a spring, and at least one set of adjustment mechanism is an active adjustment structure. The active adjustment structure is a piston-type pneumatic piston, and the bidirectional response part is the piston of the pneumatic piston. The piston is connected to the roller shaft part. Each adjustment mechanism corresponds to only one roller shaft part. Alternatively, the active adjustment structure is a transmission mechanism consisting of a first motor and a chain. The bidirectional response part is a positioning block fixed on one or several links of the chain. The roller fixing block is connected to the positioning block. Under the action of the first motor, the motor shaft of the first motor is fitted with an active gear. The active gear realizes the movement of the first fixed roller through the chain.

9. A paper guide component with adaptive tension adjustment according to claim 1, characterized in that, The roller section has at least two sets to ensure balanced paper feeding. The inner surface of the wall panel is equipped with guide rails. Each set of roller sections has roller fixing blocks at both ends, which are slidably connected to the guide rails. The other set of roller sections has synchronous teeth at both ends, and the inner surface of the wall panel is equipped with a chain. The roller section engages with the chain through the synchronous teeth.

10. A paper splicing machine, characterized in that, It includes a paper guide component with adaptive tension adjustment as described in any one of claims 1-9.

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