A paper towel stack rotating and compacting mechanism

Abstract

The utility model discloses a kind of paper towel pile rotation compacting mechanism, including rack, turnover mechanism, paper moving mechanism, first conveying device and second conveying device, first conveying device and second conveying device are connected with rack respectively, turnover mechanism is installed on rack, paper moving mechanism includes poking block, pressing block, connecting beam, first lifting mechanism, second lifting mechanism and horizontal moving mechanism, poking block is connected with connecting beam, horizontal moving mechanism is installed on rack, first lifting mechanism is connected with horizontal moving mechanism, connecting beam is connected with first lifting mechanism, second lifting mechanism is installed on connecting beam, and is connected with pressing block, first conveying device can be transported towards turnover mechanism, paper moving mechanism can drive poking block and pressing block from turnover mechanism to move to the place of second conveying device. In the process that paper towel pile moves from turnover mechanism to second conveying device, certain pressure can be exerted to its end portion by pressing block, to effectively avoid paper towel pile to scatter, to ensure the reliability of subsequent processing.

Description

Technical Field

[0001] This utility model relates to the field of paper towel stacking and conveying, and in particular to a paper towel stack rotation and pressing mechanism. Background Technology

[0002] To facilitate packaging and other processing of tissues, after production, tissues are often folded into individual stacks using a tissue folding machine before being sent to subsequent packaging and processing equipment. In the use of tissue stacks, users prefer that the tissues at the ends of the stack be easier to pull out. Therefore, some tissue folding equipment, such as the tissue folding and conveying mechanism disclosed in CN202222929198.4, folds the tissues at the bottom of the stack in half when folding the tissue stack.

[0003] However, in actual use of tissue stacks, users generally prefer to take tissues from the top of the stack. Therefore, the tissue stacks with the bottom tissues folded in half usually need to be flipped before being conveyed to subsequent packaging equipment. Currently, flipping tissue stacks is mostly done manually, which is time-consuming and labor-intensive. Even if a small number of tissue stack processing equipment uses a mechanical structure to flip the tissue stacks, the flipped tissue stacks are prone to scattering during the process of being transferred from the flipping structure to the subsequent conveying equipment, affecting subsequent packaging and other processing. Utility Model Content

[0004] The purpose of this invention is to provide a paper towel stack rotation and pressing mechanism that can solve one or more of the above-mentioned problems.

[0005] According to one aspect of the present invention, a paper towel stack rotation and pressing mechanism is provided, comprising a frame, a flipping mechanism, a paper transfer mechanism, a first conveying device, and a second conveying device. The first and second conveying devices are respectively connected to the frame, and the tilting mechanism is mounted on the frame. The paper-moving mechanism includes a pusher block, a pressure block, a connecting beam, a first lifting mechanism, a second lifting mechanism, and a traversing mechanism. The pusher block is connected to the connecting beam. The traversing mechanism is mounted on the frame. The first lifting mechanism is connected to the traversing mechanism. The connecting beam is connected to the first lifting mechanism. The second lifting mechanism is mounted on the connecting beam and connected to the pressure block. The first conveying device can convey the paper towards the flipping mechanism, and the paper transfer mechanism can drive the pusher and the pressure block from the flipping mechanism to the second conveying device.

[0006] The beneficial effects of this utility model are as follows: In this utility model, the first conveying device can convey a paper towel stack with its bottom half-folded to the flipping mechanism. The flipping mechanism can flip the paper towel stack so that the half-folded position of the paper towel stack changes to its top. A paper-moving mechanism is also provided, which can move the flipped paper towel stack to the second conveying device by the movement of its pusher block. Finally, the second conveying device is used to transport the paper towel stack to subsequent processing equipment such as packaging equipment. Moreover, during the process of the paper towel stack moving from the flipping mechanism to the second conveying device, a certain pressure can be applied to its end by the pressure block to effectively prevent the paper towel stack from falling apart, so as to effectively ensure the integrity of the paper towel stack entering the second conveying device and ensure the reliability of subsequent processing.

[0007] In some embodiments, the lateral movement mechanism includes a first slider, a first guide rail, a first drive device, and a first bracket. The first guide rail is mounted on a frame, the first slider is slidably disposed on the first guide rail, the first drive device is connected to the first slider, and the first bracket is connected to the first slider. The first drive device can drive the first slider to move along the first guide rail, and the first bracket connected to the first slider can follow suit to achieve lateral movement of the first bracket.

[0008] In some embodiments, the first lifting mechanism includes a second slider, a second guide rail, a second drive device, and a second support. The second guide rail is connected to a traversing mechanism. The second slider is slidably mounted on the second guide rail. The second drive device is connected to the second slider. The second support is connected to the second slider. The connecting beam is connected to the second support. The second drive device can drive the second slider to move along the second guide rail, and the second support connected to the second slider can move accordingly to realize the lifting and lowering movement of the connecting beam connected to the second support.

[0009] In some embodiments, the second lifting mechanism includes a lead screw, a nut, a lead screw seat, a connecting plate, and a third driving device. The lead screw seat is connected to a connecting beam, the lead screw is rotatably connected to the lead screw seat, the third driving device is connected to the lead screw, the nut is connected to the connecting plate, and the nut is threadedly connected to the lead screw. The connecting plate is connected to the pressure block. The third driving device can drive the lead screw to rotate, and the nut can move up and down along the lead screw, thereby enabling the pressure plate connected to the nut via the connecting plate to move up and down.

[0010] In some embodiments, the present invention further includes a pressure cylinder, a connecting strip, and a pressure needle. The pressure cylinder is connected to the connecting beam and the connecting strip. The pressure needle is connected to the connecting strip. When the tissue stack approaches the second conveying device, the pressure cylinder can apply pressure to the top of the tissue stack through its operation, thereby further improving the compactness of the tissue stack and reducing the probability of it becoming loose. At the same time, it can make the top half-folded part of the tissue stack adhere better to the tissue stack, effectively reducing the probability of the half-folded part failing.

[0011] In some embodiments, the flipping mechanism includes a first clamping block, a second clamping block, a guide post, a turntable, a first cylinder, a second cylinder, and a fourth driving device. The fourth driving device is connected to the turntable, the guide post is mounted on the turntable, the first clamping block and the second clamping block are slidably connected to the guide post, the first cylinder and the second cylinder are both connected to the turntable, the first cylinder is connected to the first clamping block, and the second cylinder is connected to the second clamping block. The first cylinder and the second cylinder can drive the first clamping block and the second clamping block to move towards or away from each other.

[0012] In some embodiments, the flipping mechanism includes a first limiting block and a second limiting block, the first limiting block being connected to a first clamping block, and the second limiting block being connected to a second clamping block. The first and second limiting blocks can limit the tissue stack during flipping, reducing unexpected displacement of the tissue stack during flipping. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a paper towel stack rotation and pressing mechanism according to one embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the flipping mechanism of a paper towel stack rotation and pressing mechanism according to one embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the flipping mechanism of a paper towel stack rotation and pressing mechanism according to one embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram of the paper-moving mechanism of a paper towel stack rotation and pressing mechanism according to one embodiment of the present invention.

[0017] Figure 5 This is a schematic diagram of the paper-moving mechanism of a paper towel stack rotation and pressing mechanism according to one embodiment of the present invention.

[0018] Figure 6 The left view is a schematic diagram of the paper-moving mechanism of the paper towel stack rotation and pressing mechanism according to one embodiment of the present invention.

[0019] In the diagram: 1. Frame, 2. Tilting mechanism, 3. Paper transfer mechanism, 4. First conveying device, 5. Second conveying device, 21. First clamping block, 22. Second clamping block, 23. Guide column, 24. Turntable, 25. First cylinder, 26. Second cylinder, 28. First limiting block, 29. Second limiting block, 31. Push block, 32. Pressing block, 33. Connecting beam, 34. First lifting mechanism, 35. Second lifting mechanism, 36. Lateral movement mechanism, 361. First slider, 362. First guide rail, 364. First bracket, 341. Second slider, 342. Second guide rail, 343. Second drive device, 344. Second bracket, 351. Lead screw, 352. Nut, 353. Lead screw seat, 354. Connecting plate, 355. Third drive device, 6. Pressing cylinder, 7. Connecting bar, 8. Pressing needle. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The present invention relates to a paper towel stack rotation and pressing mechanism, comprising a frame 1, a flipping mechanism 2, a paper transfer mechanism 3, a first conveying device 4, and a second conveying device 5.

[0022] The first conveying device 4 is preferably a belt conveyor. The body of the first conveying device 4 is fixedly connected to the frame 1 by screws. The second conveying device 5 is also preferably a belt conveyor. The body of the second conveying device 5 is also fixedly connected to the frame 1 by screws. The frame 1 is provided with a through hole, through which the second conveying device 5 passes.

[0023] The flipping mechanism 2 includes a first clamping block 21, a second clamping block 22, a guide post 23, a turntable 24, a first cylinder 25, a second cylinder 26, and a fourth drive device. The fourth drive device is preferably a motor. The body of the fourth drive device is fixedly mounted on the frame 1 with screws. The output shaft of the fourth drive device is connected to the turntable 24 through a belt drive mechanism, so that the fourth drive device can drive the turntable 24 to rotate. The guide post 23 is preferably two, and the two guide posts 23 are respectively fixedly mounted on the turntable 24 by connecting blocks. The first clamping block 21 is connected to the guide post 23 through a guide sleeve, so that the first clamping block 21 can move along the guide post 23. The second clamping block 22 is also connected to the guide post 23 through a guide sleeve, so that the second clamping block 22 can move along the guide post 23. A crossbeam is connected to the first clamping block 21, and multiple first additional clamping blocks are connected to the crossbeam. The first additional clamping blocks can move with the first clamping block 21. Another crossbeam is connected to the second clamping block 22, and multiple second additional clamping blocks are connected to the crossbeam. The second additional clamping blocks can move with the second clamping block 21.

[0024] The cylinder bodies of the first cylinder 25 and the second cylinder 26 are both fixedly connected to the turntable 24 by screws. The piston rod of the first cylinder 25 is connected to a connecting plate to connect to the first clamping block 21. The piston rod of the second cylinder 26 is connected to another connecting plate to connect to the second clamping block 22. The first cylinder 25 can drive the first clamping block 21 to move, and the second cylinder 26 can drive the second clamping block 22 to move, so that the first clamping block 21 and the second clamping block 22 move towards each other or away from each other.

[0025] The flipping mechanism 2 also includes a first limiting block 28 and a second limiting block 29. The first limiting block 28 is fixedly connected to the first clamping block 21 by bolts. The first limiting block 28 is set perpendicular to the first clamping block 21. The second limiting block 28 is connected to the second clamping block 22. The second limiting block 29 is set perpendicular to the second clamping block 22. The first additional clamping block can also be connected to the first limiting block 28, and the second additional clamping block can also be connected to the second limiting block 29.

[0026] The paper transfer mechanism 3 includes a pusher block 31, a pressure block 32, a connecting beam 33, a first lifting mechanism 34, a second lifting mechanism 35, and a transverse movement mechanism 36.

[0027] The lateral movement mechanism 36 includes a first slider 361, a first guide rail 362, a first drive device, and a first bracket 364. The lateral movement mechanism 36 is mounted on a frame 1. Preferably, the first guide rail 362 is fixedly mounted on the frame 1 with screws, and the first slider 361 is slidably fitted onto the first guide rail 362. The first drive device is preferably a cylinder, with the cylinder body fixedly connected to the frame 1 with screws. The piston rod of the first drive device is connected to the first slider 361, and the first bracket 364 is connected to the first slider 361. The piston rod and the first guide rail 362 are arranged parallel to the horizontal plane, allowing the first drive device to drive the first slider 361 and the first bracket 364 to move parallel to the horizontal plane, thus achieving lateral movement.

[0028] The first lifting mechanism 34 is connected to the transverse mechanism 36. Preferably, the first lifting mechanism 34 includes a second slider 341, a second guide rail 342, a second drive device 343, and a second support 344. The second guide rail 342 is fixedly connected to the first support 364 of the transverse mechanism 36 by screws. The second slider 341 is slidably disposed on the second guide rail 342. The second drive device 343 is preferably a conveyor belt device. The conveyor belt device is provided with a conveyor belt that can transport vertically. The second slider 341 is fixedly connected to the conveyor belt by a connecting block. The second guide rail 342 is also arranged perpendicular to the horizontal plane. The second support 344 is fixedly connected to the second slider 341 by screws.

[0029] The connecting beam 33 is fixedly connected to the second bracket 344 of the first lifting mechanism 34 by screws, and there are multiple toggle blocks 31, all of which are fixedly connected to the connecting beam 33 by screws.

[0030] The second lifting mechanism 35 is mounted on the connecting beam 33. Preferably, the second lifting mechanism 35 includes a lead screw 351, a nut 352, a lead screw seat 353, a connecting plate 354, and a third driving device 355. There are multiple lead screw seats 353, lead screws 351, and nuts 352. All lead screw seats 353 are fixedly connected to the connecting beam 33 by screws. Multiple lead screws 351 are rotatably connected to multiple lead screw seats 353. The lead screws 351 are arranged perpendicular to the horizontal plane. The third driving device 355 is connected to all lead screws 351 via a belt drive. Multiple nuts 352 are respectively connected to multiple lead screws 351 via threaded connections. The connecting plate 354 is fixedly connected to all nuts 352 by screws, thus restricting the rotation of the nuts 352.

[0031] There can be multiple pressure blocks 32, and all pressure blocks 32 are fixedly connected to the connecting plate 354 by screws.

[0032] Once set up, the first conveying device 4 can convey the paper towards the flipping mechanism 2, and the paper transfer mechanism 3, relying on the operation of its first driving device, second driving device 343 and third driving device 355, can drive the push block 31 and the pressure block 32 from the flipping mechanism 2 to the second conveying device 5.

[0033] This tissue stack rotation and pressing mechanism also includes a pressure cylinder 6, a connecting bar 7, and pressure needles 8. The cylinder body of the pressure cylinder 6 is fixedly connected to the connecting beam 33 via a cylinder seat. The piston rod of the pressure cylinder 6 is set perpendicular to the horizontal plane and is connected to the connecting bar 7. There can be multiple pressure needles 8, and all pressure needles 8 are fixedly embedded in the connecting bar 7.

[0034] When this tissue stack rotation and pressing mechanism is in use, the first conveying device 4 can convey the tissue stack with its bottom half-folded to the flipping mechanism 2 for flipping. Specifically, initially, there is a accommodating space between the first clamping block 21 and the second clamping block 22. The tissue stack can enter the accommodating space under the conveying of the first conveying device 4. At this time, the first cylinder 25 can drive the first clamping block 21 to move, and the second cylinder 26 can drive the second clamping block 22 to move, so that the first clamping block 21 and the second clamping block 22 move towards each other. The first clamping block 21 and the second clamping block 22 clamp the tissue stack in the accommodating space. The side of the tissue stack is also restricted by the first limiting block 28 and the second limiting block 29. After that, the fourth driving device works to drive the turntable 24 to rotate, and the tissue stack clamped by the first clamping block 21 and the second clamping block 22 can rotate accordingly. After the tissue stack is flipped, the tissue stack becomes a half-folded top. Then, the first cylinder 25 can drive the first clamping block 21 to move, and the second cylinder 26 can drive the second clamping block 22 to move, so that the first clamping block 21 and the second clamping block 22 move in opposite directions, so that the first clamping block 21 and the second clamping block 22 no longer hold the stack of paper towels.

[0035] Then, the flipped tissue stack can be transferred from the flipping mechanism 2 to the second conveying device 5 by the transfer mechanism 3. Specifically, the first driving device and the second driving device 343 can work together to enable the push block 31 and the pressure block 32 to move laterally and longitudinally, so that the push block 31 and the pressure block 32 can enter the space between the first clamping block 21 and the second clamping block 22. The push block 31 can abut against one side of the tissue stack, while the pressure block 32 will be located above the tissue stack.

[0036] Then, the third drive device 355 can work to drive the lead screw 351 to rotate, so that the nut 352 can move linearly to realize the downward movement of the pressure block 32. The pressure block 32 slightly abuts against the top of the tissue stack. Then, the first drive device and the second drive device 343 work together again to move the pusher block 31 and the pressure block 32. The pusher block 31 can push the tissue stack that is slightly pressed by the pressure block 32 to the second conveyor device 5.

[0037] In addition, the coordinated operation of the first driving device and the second driving device 343 enables the pressure needle 8 to move together with the push block 31, and the pressure needle 8 can always be on top of the tissue stack. Before the tissue stack is pushed to the second conveying device 5, the pressure cylinder 6 can be activated. The pressure cylinder 6 can drive the pressure needle 8 to move down, and the pressure needle 8 can press the tissue stack to further improve the contact tightness of each tissue in the tissue stack. After that, the pressure cylinder 6 drives the pressure needle 8 to move up to detach from the tissue stack.

[0038] When the pusher block 31 pushes the tissue stack onto the second conveyor device 5, the first drive device, the second drive device 343 and the third drive device 355 can work together to make the pusher block 31 and the pressing block 32 detach from the tissue stack. Then the second conveyor device 5 can transport the tissue stack to subsequent packaging equipment and other processing equipment.

[0039] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A paper towel stack rotary pressing mechanism, characterized in that, It includes a frame, a flipping mechanism, a paper transfer mechanism, a first conveying device, and a second conveying device. The first and second conveying devices are respectively connected to the frame, and the tilting mechanism is mounted on the frame. The paper-moving mechanism includes a pusher block, a pressure block, a connecting beam, a first lifting mechanism, a second lifting mechanism, and a traversing mechanism. The pusher block is connected to the connecting beam. The traversing mechanism is mounted on the frame. The first lifting mechanism is connected to the traversing mechanism. The connecting beam is connected to the first lifting mechanism. The second lifting mechanism is mounted on the connecting beam and connected to the pressure block. The first conveying device can convey the paper towards the flipping mechanism, and the paper transfer mechanism can drive the pusher and the pressure block from the flipping mechanism to the second conveying device.

2. The paper towel stack rotary pressing mechanism according to claim 1, characterized in that, The traversing mechanism includes a first slider, a first guide rail, a first driving device, and a first bracket. The first guide rail is mounted on the frame, the first slider is slidably disposed on the first guide rail, the first driving device is connected to the first slider, and the first bracket is connected to the first slider.

3. The paper towel stack rotary pressing mechanism according to claim 1, characterized in that, The first lifting mechanism includes a second slider, a second guide rail, a second drive device, and a second support. The second guide rail is connected to the transverse mechanism. The second slider is slidably mounted on the second guide rail. The second drive device is connected to the second slider. The second support is connected to the second slider. The connecting beam is connected to the second support.

4. The tissue stack rotary pressing mechanism according to claim 1, characterized in that, The second lifting mechanism includes a lead screw, a nut, a lead screw seat, a connecting plate, and a third driving device. The lead screw seat is connected to the connecting beam, the lead screw is rotatably connected to the lead screw seat, the third driving device is connected to the lead screw, the nut is connected to the connecting plate, the nut is threadedly connected to the lead screw, and the connecting plate is connected to the pressure block.

5. The paper towel stack rotary pressing mechanism according to claim 1, characterized in that, It includes a pressure cylinder, a connecting bar, and a pressure needle. The pressure cylinder is connected to the connecting beam and the connecting bar. The pressure needle is connected to the connecting bar.

6. The paper towel stack rotary pressing mechanism according to claim 1, characterized in that, The flipping mechanism includes a first clamping block, a second clamping block, a guide post, a turntable, a first cylinder, a second cylinder, and a fourth driving device. The fourth driving device is connected to the turntable. The guide post is mounted on the turntable. The first clamping block and the second clamping block are slidably connected to the guide post. The first cylinder and the second cylinder are both connected to the turntable. The first cylinder is connected to the first clamping block, and the second cylinder is connected to the second clamping block. The first cylinder and the second cylinder can drive the first clamping block and the second clamping block to move towards or away from each other.

7. A paper towel stack rotary pressing mechanism according to claim 6, characterized in that, The flipping mechanism includes a first limiting block and a second limiting block, wherein the first limiting block is connected to a first clamping block and the second limiting block is connected to a second clamping block.

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