Static lap joint mechanism for new and old paper tapes of paper tube machine

Abstract

The utility model discloses a static lapping mechanism for new and old paper tapes of a paper tube machine. The static lapping mechanism is fixedly mounted on a back plate of the paper tube machine. Comprising a guide shaft, a cutter anvil, a lap joint block, a cutter, a paper dragging roller, a paper storage box and the like. The knife anvil is fixed on the back plate, one side of the knife anvil is provided with a lap joint block, a first guide shaft and a second guide shaft are arranged above the knife anvil, the upper end of the lap joint block is hinged with the second guide shaft, an adhesive tape plate and a cutter, the rotation of the adhesive tape plate is controlled by an air cylinder, and the lower end of the adhesive tape plate is provided with air suction negative pressure; the paper dragging roller is a driving roller driven by a motor; a fourth guide shaft is arranged outside the box, old paper enters the paper storage box from the first guide shaft through the cutter anvil, the paper dragging roller and the like, new paper is cut by the lap joint block cutter together with the old paper from the second guide shaft through the cutter anvil and is connected through the adhesive tape, and lap joint switching of the new paper tape and the old paper tape is achieved. According to the mechanism, rapid, stable and accurate lap joint of new and old paper tapes of the paper tube machine is achieved, the continuity and stability of paper tape supply are improved, and therefore the efficiency and quality of paper tube production are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical fields, more particularly, relate to a kind of static lap joint mechanism of new and old paper tape of paper tube machine. BACKGROUND

[0002] In the normal operation of paper tube machine, the current paper disc will be consumed soon, new paper disc needs to be replaced, in order to ensure the continuity of production, lap joint mechanism is needed to connect new disc paper tape with old disc paper tape.

[0003] The current lap joint method is manual lap joint and automatic lap joint, manual lap joint takes a long time, and new and old paper tapes are prone to misalignment at lap joint position, which affects production efficiency and quality. The traditional automatic lap joint mechanism generally needs to be placed separately, and the space occupied by the paper storage buffer mechanism is relatively large, which is inconvenient to combine with the equipment main machine as a whole. In the lap joint process, the paper storage buffer component is limited by structural limitations, which can affect the paper tape tension during the entire operation of the equipment. The paper disc is only subjected to the traction force of the forming component and is passively fed forward. The paper feeding speed cannot be adjusted, and the equipment is prone to paper tape breakage or paper tape overflow during start-up and shutdown. UTILITY MODEL CONTENT

[0004] The utility model is just based on the above technical problem, and proposes a kind of static lap joint mechanism of new and old paper tape of paper tube machine.

[0005] A kind of static lap joint mechanism of new and old paper tape of paper tube machine, the lap joint mechanism is fixedly installed on the back plate of paper tube machine, the lap joint mechanism includes guide shaft, anvil, lap joint block, cutter, paper trailing roller, paper storage box, the anvil is fixed on the back plate, the anvil is equipped with lap joint block on one side, the anvil and the first guide shaft and the second guide shaft are equipped above the lap joint block, the lap joint block is hinged on the second guide shaft upper end, air cylinder controls the lap joint block, so that it rotates with the second guide shaft as the shaft, the lap joint block lower end is equipped with adhesive tape plate, the adhesive tape plate is suction negative pressure plate, adhesive tape is adsorbed on the adhesive tape plate, the cutter is located in the middle of the adhesive tape plate;The cutter is located on one side of the anvil, the cutter is controlled by the lap joint block, so that it moves towards the anvil and cuts paper tape;The paper trailing roller is located below the anvil, the paper trailing roller is driven to rotate by motor and is driving roller, the paper trailing roller is equipped with paper pressing roller matched with it on one side;The paper storage box is located below the paper trailing roller and the paper pressing roller, the paper storage box is equipped with swing arm, the swing arm rotates with the end shaft on its upper end as center, the swing arm lower end is equipped with the third guide shaft, the fourth guide shaft is equipped outside above the paper storage box.

[0006] Preferably, the first guide shaft and the second guide shaft are both equipped with two limit rings, and new and old paper tapes pass through between the limit rings of the first guide shaft and the second guide shaft respectively.

[0007] Preferably, the inner side of the lower part of the anvil is provided with a knife groove, and the cutting knife can be cut into the knife groove under the controlled horizontal movement.

[0008] Preferably, the middle part of the inner side of the lap joint block is provided with an outwardly inclined elastic pressing plate.

[0009] Preferably, the end of the elastic pressing plate is in a circular arc structure.

[0010] Preferably, the distance between the paper pressing roller and the paper dragging roller is adjustable.

[0011] Preferably, the paper pressing roller is rotatably installed at the lower part of an adjusting block, the upper part of the adjusting block is rotatably connected with a rotating shaft fixed on the back plate, and the lower part of the outer side of the adjusting block is provided with an extension rod, and the distance between the paper pressing roller and the paper dragging roller can be adjusted by changing the length of the extension rod.

[0012] Preferably, the middle part of the swing arm is connected with one end of a spring, the other end of the spring is fixedly connected with the rear wall of the paper storage box, and the rear wall is located at the rear side of the swing arm.

[0013] Preferably, the end shaft is rotatably installed on the side wall of the paper storage box, and the end shaft is further connected with an angle sensor.

[0014] Preferably, the paper inlet at the upper end of the paper storage box is located directly below the paper dragging roller and the paper pressing roller, the paper inlet is located at one side of the upper end of the paper storage box, the paper outlet at the upper end of the paper storage box is located at the other side of the upper end of the paper storage box, a paper stabilizer is arranged outside the paper outlet, and the paper stabilizer is provided with negative pressure suction holes inside.

[0015] Beneficial effects:

[0016] 1. The new and old paper tape static lap joint mechanism of the paper tube machine realizes automatic lap joint switching, realizes lap joint without stopping during production, guarantees the continuity of paper tape supply, greatly improves the production efficiency, at the same time, the accurate lap joint and cutting process ensure firm and accurate lap joint, reduce paper tape waste, reduce production cost, and guarantee the stability of paper tube production quality;

[0017] 2. The mechanism realizes stable paper tape conveying, avoids deviation and wrinkles through the guide shaft, the paper dragging roller and the paper pressing roller and other components. The distance between the paper pressing roller and the paper dragging roller is adjustable, which is suitable for different paper tapes and has strong universality. The swing arm and the guide shaft in the paper storage box optimize paper tape storage, provide buffer for lap joint switching, and ensure the process stable;

[0018] 3. The elastic pressing plate and the cutting knife in the mechanism avoid paper tape damage, the end shaft is connected with the angle sensor to realize accurate control and monitoring, and stable and accurate paper tape lap joint and conveying provide good conditions for paper tube forming, improve the size precision and physical performance of the paper tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shows a schematic structural diagram of the utility model;

[0020] Figure 2 A front structural diagram of a lap joint block is shown;

[0021] Figure 3 Shows a schematic structural diagram of the cutter and the spring rod;

[0022] Figure 4 Shows a schematic diagram of the adjustment structure of the paper pressing roller;

[0023] Figure 5 Shows a schematic structural diagram of the inner vertical plate of the paper storage box;

[0024] Figure 6 Shows the status of the cutter cutting paper Figure 1 ;

[0025] Figure 7 Shows the status of the cutter cutting paper Figure 2 . DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0027] like Figures 1-7 The static splicing mechanism of the new and old paper tapes 6 of a paper tube machine is shown, and the splicing mechanism is fixedly mounted on the back plate 1 of the paper tube machine.

[0028] The overlapping mechanism covers components such as the guide shaft, the anvil 4, the overlapping block 5, the cutter 10, the paper drag roller 11 and the paper storage box 21. The anvil 4 is firmly fixed on the back plate 1, and a overlapping block 5 is provided on one side. Above the anvil 4 and the overlapping block 5, there are respectively provided a first guide shaft 2 and a second guide shaft 3. Their main purpose is to guide the direction of the paper tape. The old paper tape 6 on the old paper tray first passes around the first guide shaft 2 and then moves downward along the inner side of the anvil 4.

[0029] The upper end of the overlapping block 5 is hinged on the second guide shaft 3 and is controlled by the cylinder 8. The front end of the cylinder 8 is hinged to the overlapping block 5. The overlapping block 5 can rotate around the second guide shaft 3. The lower end of the overlapping block 5 is equipped with a tape plate 30. This tape plate 30 is a suction negative pressure plate that can firmly adsorb the adhesive tape 31.

[0030] The cutter 10 is located on one side of the anvil 4, and its movement is controlled by the overlap block 5. It can move toward the anvil 4 to cut the paper tape. In the horizontal direction, the cutter 10 is located in the middle of the tape plate 30. One end of the cutter 10 is connected to a spring rod 19. When the overlap block 5 pushes the cutter 10 to cut paper, the return spring 20 on the spring rod 19 is compressed. After the overlap block 5 is reset, the cutter 10 will also be reset under the action of the return spring 20; the paper drag roller 11 is located below the anvil 4. It is an active roller driven to rotate by a motor, and a paper pressing roller 12 is provided on one side thereof to cooperate with it for clamping and feeding the paper tape. The old paper tape 6 passes between the paper traction roller 11 and the paper pressing roller 12. The paper storage box 21 is located below the paper traction roller 11 and the paper pressing roller 12. A swing arm 25 is provided inside the paper storage box 21. The swing arm 25 rotates around the end shaft 24 at the upper end. A third guide shaft 27 is provided at the lower end of the swing arm 25. A fourth guide shaft 29 is also provided on the outer side above the paper storage box 21. The old paper tape 6 enters the paper storage box 21 from the paper inlet 22 of the paper storage box 21, and after entering the paper storage box 21, it bypasses the lower side of the third guide shaft 27 at the lower end of the swing arm 25, and then bypasses the fourth guide shaft 29, and finally enters the paper tube forming mechanism.

[0031] As a further improvement, a paper clamping block 13 is provided under the overlapping block 5. The paper clamping block 13 can rotate in a controlled manner, and the end of the front section of the new paper tape 7 is clamped on the paper clamping block 13. When the new paper tape 7 is cut, the paper clamping block 13 will rotate in a controlled manner to take away the cut front section.

[0032] The new paper tape 7 on the new paper tray passes around the second guide shaft 3, and both the new paper tape 7 and the old paper tape 6 pass vertically downward between the knife anvil 4 and the overlapping block 5. The end of the new paper tape 7 is connected to the paper clamping block 13 under the overlapping block 5. The paper clamping block 13 tightens the new paper tape 7. When the overlapping block 5 rotates under the action of the cylinder 8, it pushes the cutter 10 to cut the new paper tape 7 and the old paper tape 6; at this time, Figures 6-7 As shown, the adhesive tape 31 at the bottom of the overlapping block 5 will connect the rear section 701 of the new paper tape 7 with the front section 602 of the old paper tape 6. The adhesive tape 31 is a single-sided tape. The rear section 601 of the old paper tape 6 stops feeding due to loss of power, and the front section 702 of the new paper tape 7 will be rolled away by the paper clamping block 13, thereby realizing the overlapping switching of the new and old paper tapes.

[0033] It should be noted that when the adhesive tape 31 is pasting the new paper tape 7 and the old paper tape 6, the conveying speeds of the two paper tapes are equal, that is, they are relatively stationary, so that the overlapping effect can be guaranteed.

[0034] It should be noted that the paper tube forming mechanism is provided with a paper tape traction device, which can pull out the paper tape in the paper storage box 21 .

[0035] As a further improvement, two limiting rings 32 are provided on the first guide shaft 2 and the second guide shaft 3. The new and old paper tapes pass through the limiting rings 32 of the first guide shaft 2 and the second guide shaft 3 respectively to prevent the paper tapes from deviating.

[0036] As a further improvement, a knife groove 9 is provided on the inner side of the lower part of the anvil 4, and the cutter 10 can be controlled to move laterally and cut into the knife groove 9 to ensure the accuracy and stability of the cutting and ensure that the tape can firmly stick the new paper tape 7 and the old paper tape 6.

[0037] As a further improvement, Figures 1-2 As shown, an outwardly inclined elastic pressure plate 14 is provided in the middle of the inner side of the overlap block 5, which has the effect of pressing and guiding the paper tape. The end of the elastic pressure plate 14 is an arc structure to avoid damage to the paper tape.

[0038] As a further improvement, the distance between the pressure roller 12 and the paper drag roller 11 is adjustable. The pressure roller 12 is rotatably mounted on the outer shaft 15 at the lower part of the adjustment block 16. The upper part of the adjustment block 16 is rotatably connected to the rotating shaft 17 fixed to the back plate 1. A telescopic rod 18 is provided at the lower part of the outer side of the adjustment block 16. The front section of the telescopic rod 18 is hinged to the lower side of the inner side of the adjustment block 16. By changing the length of the telescopic rod 18, the distance between the pressure roller 12 and the paper drag roller 11 can be adjusted, and appropriate pressure is provided to the contact surface between the pressure roller 12 and the paper drag roller 11 to adapt to paper tapes of different thicknesses.

[0039] As a further improvement, the middle part of the swing arm 25 is connected to one end of the spring 26, and the other end of the spring 26 is fixedly connected to the rear wall of the paper storage box 21. The rear wall is located on the rear side of the swing arm 25 to provide the swing arm 25 with a reset force.

[0040] As a further improvement, the end shaft 24 is rotatably mounted on the side wall of the paper storage box 21. The end shaft 24 is also connected to an angle sensor for monitoring the rotation angle of the swing arm 25. According to the rotation angle of the swing arm 25, it can be known that the equipment is running at an increased speed or a decreased speed. According to this detection result, the rotation speed of the paper-drawing roller 11 can be adjusted to adapt to the operating speed of the equipment.

[0041] The paper feed port 22 at the upper end of the paper storage box 21 is located directly below between the paper drag roller 11 and the paper pressing roller 12. The paper feed port 22 is located on one side of the upper end of the paper storage box 21. The paper outlet 23 at the upper end of the paper storage box 21 is located on the other side of the upper end of the paper storage box 21. A paper stabilizer 28 is provided on the outside of the paper outlet 23. The inside of the paper stabilizer 28 has a negative pressure adsorption hole to ensure stable transportation of the paper tape in the paper storage box 21.

[0042] As a further improvement, the paper storage box 21 is provided with a vertical plate 33, which is installed on the outer side of the swing arm 25, the distance between the vertical plate 33 and the swing arm 25 is adjustable, the vertical plate 33 is provided with an arc-shaped long hole 34, the movement track of the third guide shaft 27 is the same as the shape of the arc-shaped long hole 34, and the outer end of the third guide shaft 27 is provided with a baffle 25, which is located on the outer side of the arc-shaped long hole 34.

[0043] Before the new paper tape 7 and the old paper tape 6 are overlapped, the rotating speed of the paper trailing roller 11 can be increased, and a certain amount of old paper tape 6 is stored in the paper storage box 21, so that the equipment can normally operate during the overlapping.

[0044] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A static splicing mechanism for new and old paper tapes of a paper tube machine, characterized in that: The overlapping mechanism is fixedly mounted on the back plate of the paper tube machine, and the overlapping mechanism includes a guide shaft, a knife anvil, a overlapping block, a cutter, a paper drag roller, and a paper storage box. The knife anvil is fixed on the back plate, and an overlapping block is provided on one side of the knife anvil. A first guide shaft and a second guide shaft are provided above the knife anvil and the overlapping block. The upper end of the overlapping block is hinged on the second guide shaft, and the cylinder controls the overlapping block to rotate with the second guide shaft as the axis. A tape plate is provided at the lower end of the overlapping block, and the tape plate is a suction negative pressure plate. The adhesive tape is adsorbed on the tape plate. The cutter is located in the middle of the tape plate; the cutter is located on one side of the anvil, and the cutter is controlled by the overlap block so that it moves toward the anvil to cut the paper tape; the paper drag roller is located below the anvil, and the paper drag roller is an active roller driven to rotate by a motor, and a paper pressing roller is provided on one side of the paper drag roller to cooperate with it; the paper storage box is located below the paper drag roller and the paper pressing roller, and a swing arm is provided in the paper storage box, and the swing arm rotates around the end shaft at its upper end, and a third guide shaft is provided at the lower end of the swing arm, and a fourth guide shaft is provided on the outer side above the paper storage box.

2. The static splicing mechanism for new and old paper tapes of the paper tube machine according to claim 1, characterized in that: The first guide shaft and the second guide shaft are each provided with two limiting rings, and the new and old paper tapes pass around between the limiting rings of the first guide shaft and the second guide shaft respectively.

3. The static splicing mechanism for new and old paper tapes of the paper tube machine according to claim 1, characterized in that: A knife groove is provided on the inner side of the lower part of the knife anvil, and the cutter can cut into the knife groove by controlled transverse movement.

4. The static splicing mechanism for new and old paper tapes of the paper tube machine according to claim 1, characterized in that: An elastic pressing plate inclined outward is provided in the middle of the inner side of the connecting block.

5. The static splicing mechanism for new and old paper tapes of the paper tube machine according to claim 4, characterized in that: The end of the elastic pressing plate is an arc structure.

6. The static splicing mechanism for new and old paper tapes of a paper tube machine according to claim 1, characterized in that: The distance between the paper pressing roller and the paper pulling roller is adjustable.

7. The static splicing mechanism for new and old paper tapes of the paper tube machine according to claim 6, characterized in that: The paper pressing roller is rotatably mounted on the lower part of the adjustment block, the upper part of the adjustment block is rotatably connected to the rotating shaft fixed on the back plate, and a telescopic rod is provided at the lower part of the outer side of the adjustment block. By changing the length of the telescopic rod, the distance between the paper pressing roller and the paper pulling roller can be adjusted.

8. The static splicing mechanism for new and old paper tapes of a paper tube machine according to claim 1, characterized in that: The middle portion of the swing arm is connected to one end of the spring, and the other end of the spring is connected and fixed to the rear wall of the paper storage box, and the rear wall is located at the rear side of the swing arm.

9. The static splicing mechanism for new and old paper tapes of a paper tube machine according to claim 1, characterized in that: The end shaft is rotatably mounted on the side wall of the paper storage box, and the end shaft is also connected to the angle sensor.

10. The static splicing mechanism for new and old paper tapes of a paper tube machine according to claim 1, characterized in that: The paper feed at the upper end of the paper storage box is located directly below between the paper traction roller and the paper pressing roller, the paper feed is located on one side of the upper end of the paper storage box, and the paper outlet at the upper end of the paper storage box is located on the other side of the upper end of the paper storage box. A paper stabilizer is provided on the outer side of the paper outlet, and a negative pressure adsorption hole is provided on the inner side of the paper stabilizer.

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