Tissue dividing and folding machine capable of stably folding and half folding tissues

Abstract

The utility model discloses a tissue separating and folding machine capable of stabilizing and half-folding tissues. The tissue separating and folding machine comprises a rack, a tissue processing mechanism, a first half finger inserting device, a second half finger inserting device, a tissue supporting and lifting device, a tissue pushing device, a tissue discharging device, a double-finger device and a single-finger device, wherein the tissue processing mechanism, the first half finger inserting device, the second half finger inserting device, the tissue supporting and lifting device, the tissue pushing device, the tissue discharging device and the single-finger device are arranged on the rack. According to the paper feeding device, the first half-inserting finger device and the second half-inserting finger device are arranged to enter the paper feeding channel in a half-inserting mode, contact between the paper feeding channel and the arching part of the paper output by the paper processing mechanism can be effectively reduced, and therefore the probability that the paper is damaged when the paper feeding channel acts is effectively reduced; when the paper supporting and lifting device conveys the paper towels to the paper pushing device, the first half finger inserting device and the second half finger inserting device can replace the paper supporting and lifting device to support the paper towels, in addition, the double-finger device and the single-finger device are arranged to be used for half folding the paper towels at the end of the paper towel stack, and therefore the paper towels can be conveniently and rapidly folded. The requirement for cooperation of other devices in work is low, and the half-folding success rate is high.

Description

Technical Field

[0001] This utility model relates to the field of tissue paper processing equipment, and in particular to a tissue paper folding machine that can stably fold tissue paper in half. Background Technology

[0002] After processing, paper towels are usually in whole sheets. To facilitate subsequent processing, transportation, or packaging, and to make it easier to remove the first sheet from a stack of paper towels, the paper towels at the end of many stacks are folded in half.

[0003] ZL202210592488.6 discloses a multi-manipulator tissue paper stacking mechanism, which can stack tissue paper and fold the tissue paper at the end of the tissue paper stack in half. However, in actual use, it was found that when the mechanism folds tissues, one of its robotic arms inserts itself into the tissues. This insertion is done using only one robotic finger. To ensure effective support of the tissues, it needs to be inserted a distance equivalent to the width of the tissue. The folding of the tissues relies on the operation of the vacuum cutter roller, and the folded tissues often form an arc-shaped arch at the top. The robotic finger easily collides with this arch, causing it to get caught and torn, resulting in insufficient insertion stability. Secondly, the mechanism requires complex coordination between the robotic arms to achieve a partial fold at the end of the tissue stack, placing high demands on the precision of each robotic arm and making partial folding failures common. Furthermore, the partial folding process is highly dependent on airflow, which has poor stability in moving the tissues, leading to significant variations in the tissue's position and resulting in a large difference in the actual partial fold amount, making the partial folding effect highly random. Utility Model Content

[0004] The purpose of this invention is to provide a tissue folding machine that can stably fold tissues in half, which can solve one or more of the above-mentioned problems.

[0005] According to one aspect of the present invention, a tissue folding machine capable of stably folding tissues in half is provided, comprising a frame and a tissue processing mechanism, a first half-finger insertion device, a second half-finger insertion device, a paper-supporting lifting device, a paper-pushing device, a paper-discharging device, a two-finger device, and a single-finger device disposed on the frame.

[0006] The frame is equipped with a paper feed path, and the tissue paper handling mechanism can output tissue paper into the paper feed path.

[0007] The first half-finger device and the second half-finger device can enter and exit from both sides of the paper feed path, respectively.

[0008] When the first and second half-finger devices enter the paper feed path, they support the paper towels output by the paper towel handling mechanism. The entry depth of each device is no greater than half the width of the paper feed path. A gap is left between the first and second half-finger devices, allowing the end of the paper towel at the bottom to extend out from this gap. The two-finger device and the single-finger device respectively abut against the two sides of the portion of the paper towel extending from the gap. The single-finger device can extend into the two-finger device.

[0009] When the first and second half-finger insert devices disengage from the paper feed path, the two-finger device and the single-finger device can separate from the portion of the tissue paper extending from the empty space, and the paper-supporting lifting device can support the tissue paper output by the tissue paper handling mechanism.

[0010] The paper lifting device can transport the paper towel to the height of the paper pushing device, and the paper pushing device can push the paper towel laterally onto the paper output device.

[0011] The beneficial effects of this utility model are as follows: By setting the first and second half-insertion devices to partially insert into the paper feeding channel, the contact between the device and the arched part of the paper towels output by the paper towel handling mechanism can be effectively reduced, thereby effectively reducing the probability of damage to the paper towels during operation. Moreover, when the paper lifting device conveys the paper towels to the paper pushing device, the first and second half-insertion devices can replace the paper lifting device in supporting the paper towels, effectively forming a paper towel stack with a specific number of sheets on the paper lifting device. The paper pushing device can then easily... The paper stack on the lifting device is effectively delivered to the paper output device, avoiding the need for the paper stack to be directly transported from top to bottom. This prevents insufficient compactness of the paper stack due to weightlessness, allowing the paper output device to have a certain initial transmission speed and improving output efficiency. In addition, this invention uses a two-finger device and a single-finger device to fold the paper at the end of the paper stack in half. Its operation has low requirements for the coordination of the first half-finger device and the second half-finger device, has a high success rate of folding in half, and the folding action does not rely on airflow, resulting in good stability.

[0012] In some embodiments, the first or second half-insertion device is provided with an air blowing hole. The air blowing hole allows air to be blown onto the paper towels when it is not necessary to fold the end of the paper towel stack in half, so that the protruding part of the paper towels does not hang down, thereby preventing the protruding part of the paper towels from folding when supported by the paper lifting device.

[0013] In some embodiments, the first half-insertion finger device includes a first half-insertion finger, a first lifting device, and a first lateral drive device. The first lateral drive device is connected to the first lifting device, the first half-insertion finger is connected to the first lateral drive device, and the first lifting device is mounted on the frame. The first lateral drive device facilitates the entry and exit of the first half-insertion finger in the paper feed path, while the first lifting device facilitates the adjustment of the setting height of the first half-insertion finger.

[0014] In some embodiments, the second half-insertion finger device includes a second half-insertion finger, a second lifting device, and a second lateral drive device. The second lateral drive device is connected to the second lifting device, the second half-insertion finger is connected to the second lateral drive device, and the second lifting device is mounted on the frame. The second lateral drive device facilitates the entry and exit of the second half-insertion finger in the paper feed path, while the second lifting device facilitates the adjustment of the setting height of the second half-insertion finger.

[0015] In some embodiments, the paper-holding lifting device includes a paper-holding component, a third lifting device, and a connecting beam. The paper-holding component is T-shaped and connected to the connecting beam. The connecting beam is connected to the third lifting device, which is mounted on a frame. The third lifting device facilitates the lifting and lowering of the paper-holding component, while the T-shaped shape of the paper-holding component ensures the stability of supporting the paper towel.

[0016] In some embodiments, the paper pushing device includes a push block, a push block seat, a guide mechanism, a push motor, and a base. The push block is mounted on the push block seat, the push motor and the guide mechanism are both mounted on the base, the push motor is connected to the push block seat, the guide mechanism is connected to the push block seat, and the base is connected to the frame.

[0017] In some embodiments, the paper output device includes a conveyor motor, a main drive roller, unit belt conveyor mechanisms, and a support frame. Multiple unit belt conveyor mechanisms are present, and the main drive roller and the multiple unit belt conveyor mechanisms are mounted on the support frame, which is mounted on a machine frame. The conveyor motor can simultaneously drive multiple unit belt conveyor mechanisms via the main drive roller, thereby effectively conveying the paper towels mounted on the unit belt conveyor mechanisms.

[0018] In some embodiments, the tissue paper handling mechanism includes a first cutting blade roller, a second cutting blade roller, a first vacuum blade roller, a second vacuum blade roller, a first paper-pushing fork, and a second paper-pushing fork. The first cutting blade roller cooperates with the first vacuum blade roller, and the second cutting blade roller cooperates with the second vacuum blade roller. The first paper-pushing fork is located below the first vacuum blade roller, and the second paper-pushing fork is located below the second vacuum blade roller. The operation of the matched cutting blade roller and vacuum blade roller can cut the tissue paper covering the two vacuum blade rollers to a certain length, while the alternating downward pressure of the first and second paper-pushing forks can push the cut tissue paper off and press it down.

[0019] In some embodiments, the two-finger device includes a first finger, a second finger, and a first propulsion device. The first propulsion device is connected to the first finger, and the second finger is connected to the first finger. The first finger has a first horizontal finger, and the second finger has a second horizontal finger. The first and second horizontal fingers are arranged vertically and an empty cavity is provided between them. The first propulsion device is connected to a first half-finger insertion device. The first propulsion device can simultaneously drive the movement of the first and second fingers.

[0020] In some embodiments, the single-finger device includes a third finger and a second propulsion device, the second propulsion device being connected to the third finger. The third finger has a third horizontal finger, which is positioned opposite to the cavity. The second propulsion device is connected to a second half-insertion finger device. By positioning the third horizontal finger opposite to the cavity, the third horizontal finger can extend into the cavity under the drive of the second propulsion device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a tissue folding machine that can stably fold tissues in half, according to one embodiment of the present invention.

[0022] Figure 2 This is a cross-sectional view of a paper towel folding machine that can stably fold paper towels in half, according to one embodiment of the present invention.

[0023] Figure 3 This is a cross-sectional view of the structure of a tissue folding machine capable of stabilizing half-folded tissues, according to one embodiment of the present invention, after the processing mechanism and frame are connected.

[0024] Figure 4 This is a schematic diagram of the first and second half-finger insertion devices of a tissue folding machine that can stably fold tissues in half, according to one embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the paper-supporting lifting device of a paper towel folding machine that can stably fold paper towels in half, according to one embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the paper pushing device of a paper towel folding machine that can stably fold paper towels in half, according to one embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the two-finger device and the single-finger device of a tissue folding machine that can stably fold tissues in half, according to one embodiment of the present invention.

[0028] Figure 8This is a schematic diagram of the paper output device of a paper towel folding machine that can stably fold paper towels in half, according to one embodiment of the present invention.

[0029] In the diagram: 1. Frame, 2. Tissue paper handling mechanism, 3. First half-finger insertion device, 4. Second half-finger insertion device, 5. Paper lifting device, 6. Paper pushing device, 7. Paper output device, 8. Two-finger device, 9. Single-finger device, 11. Frame body, 12. First connecting block, 13. First stop block, 14. Second connecting block, 15. Second stop block, 111. First connecting bar, 112. Second connecting bar, 23. First vacuum knife roller, 24. Second vacuum knife roller, 25. First paper fork, 26. Second paper fork, 31. First half-finger insertion, 32. ... 33. First lifting device; 321. First lifting motor; 322. First belt conveyor; 323. First slide rail; 324. First slider; 331. First drive motor; 332. First bracket; 333. First movable beam; 334. First guide rail; 335. First guide block; 41. Second half-insertion finger; 42. Second lifting device; 43. Third lateral driving device; 421. Second lifting motor; 422. Second belt conveyor; 423. Second slide rail; 424. Second slider; 431. Second drive motor. 432. Second support, 433. Second movable beam, 434. Second guide rail, 435. Second guide block, 51. Paper support component, 52. Third lifting device, 53. Connecting beam, 521. Third lifting motor, 522. Third belt conveyor, 523. Third slide rail, 524. Third slider, 61. Push block, 62. Push block seat, 63. Guide mechanism, 64. Push motor, 65. Base, 631. Slider, 632. Guide rail, 633. Guide rail seat, 71. Conveyor motor, 72. Main drive roller, 73. Unit belt 74. Conveying mechanism, 75. Support plate, 81. First finger, 82. Second finger, 83. First propulsion device, 811. First horizontal finger, 821. Second horizontal finger, 831. First beam, 832. First finger seat, 833. First cylinder, 834. First cylinder seat, 91. Third finger, 92. Second propulsion device, 911. Third horizontal finger, 921. Second beam, 922. Second finger seat, 923. Second cylinder, 924. Second cylinder seat, 10. Paper feed path, 20. Empty space, 30. Cavity, 40. Air blowing hole. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] refer to Figures 1 to 8The present invention relates to a paper towel folding machine that can stably fold paper towels in half, comprising a frame 1 and a paper towel processing mechanism 2, a first half-finger insertion device 3, a second half-finger insertion device 4, a paper lifting device 5, a paper pushing device 6, a paper output device 7, a double-finger device 8, and a single-finger device 9 mounted on the frame 1.

[0032] The frame 1 includes a frame body 11, a first connecting block 12, a first stop block 13, a second connecting block 14, and a second stop block 15. The frame body 11 is provided with a first connecting strip 111 and a second connecting strip 112. There can be multiple first connecting blocks 12, and all first connecting blocks 12 are fixedly connected to the first connecting strip 111 by screws. There can also be multiple second connecting blocks 14, and all second connecting blocks 14 are fixedly connected to the second connecting strip 112 by screws. There are also multiple first stop blocks 13 and multiple second stop blocks 15. The number of first connecting blocks 12, first stop blocks 13, second connecting blocks 14, and second stop blocks 15 are approximately equal. Multiple first stop blocks 13 are connected to multiple first connecting blocks 12 by screws, and multiple second stop blocks 15 are connected to multiple second connecting blocks 14 by screws. After the multiple first stop blocks 13 and multiple second stop blocks 15 are set up, they are one-to-one opposite each other.

[0033] A longitudinal paper feed path 10 is formed between the first stop 13 and the second stop 15, and the paper feed path 10 is equivalent to the width of the paper towel to be output.

[0034] The tissue paper handling mechanism 2 includes a first cutting blade roller, a second cutting blade roller, a first vacuum blade roller 23, a second vacuum blade roller 24, a first paper-shifting fork 25, and a second paper-shifting fork 26. The first cutting blade roller cooperates with the first vacuum blade roller 23, and the second cutting blade roller cooperates with the second vacuum blade roller 24. Both the first vacuum blade roller 23 and the second vacuum blade roller 24 are driven by servo motors. The first paper-shifting fork 25 and the second paper-shifting fork 26 are mounted on the frame 1, with the first paper-shifting fork 25 located below the first vacuum blade roller 23 and the second paper-shifting fork 26 located below the second vacuum blade roller 24.

[0035] The first stop 13 and the second stop 15 are respectively located below the first vacuum cutter roller 23 and the second vacuum cutter roller 24, so that the paper feed path 10 is located below the paper towel processing mechanism 2, and the cut paper towel can be conveyed to the top of the paper feed path 10 by the first vacuum cutter roller 23 or the second vacuum cutter roller 24.

[0036] The first paper fork 25 is mounted on the frame 1 via a mounting shaft, and the second paper fork 26 is mounted on the frame 1 via a mounting shaft. The two paper forks are arc-shaped structures made of metal plates or metal rods. Under the action of the two mounting shafts, the two paper forks alternately press down to push the paper towel into the paper feed path 10.

[0037] The first half-insertion device 3 includes a first half-insertion 31, a first lifting device 32, and a first lateral drive device 33.

[0038] The first lifting device 32 includes a first lifting motor 321, a first belt conveyor 322, a first slide rail 323, and a first slider 324. The body of the first lifting motor 321 is fixedly mounted on the frame 1 with screws, while the drive wheel of the first belt conveyor 322 is rotatably mounted on the frame 1 via a shaft. The output shaft of the first lifting motor 321 is connected to any drive wheel of the first belt conveyor 322, so that the first lifting motor 321 can drive the first belt conveyor 322 to work. The first belt conveyor 322 is arranged longitudinally. The first slide rail 323 is fixedly mounted on the frame 1 with screws and is also arranged longitudinally. The first slider 324 is slidably sleeved on the first slide rail 323.

[0039] The first transverse drive device 33 includes a first drive motor 331, a first bracket 332, a first movable beam 333, a first guide rail 334, and a first guide block 335. The body of the first drive motor 331 is fixedly mounted on the first bracket 332 via a connecting block. The first bracket 332 is fixedly connected to the first slider 324 of the first lifting device 32 via screws. The first bracket 332 is also fixedly connected to the conveyor belt of the first belt conveyor 322 via a connecting block. The first guide rail 334 is fixedly mounted on the first bracket 332 via screws and is arranged transversely. The first movable beam 333 is fixedly connected to the first guide block 335 via screws. The first guide block 335 is slidably fitted onto the first guide rail 334. The output shaft of the first drive motor 331 is connected to the first movable beam 333 via a connecting rod, enabling the first drive motor 331 to drive the first movable beam 333 to slide along the first guide rail 334.

[0040] The second half-finger device 4 includes a second half-finger 41, a second lifting device 42, and a second lateral drive device 43.

[0041] The second lifting device 42 includes a second lifting motor 421, a second belt conveyor 422, a second slide rail 423, and a second slider 424. The body of the second lifting motor 421 is fixedly mounted on the frame 1 with screws, while the drive wheel of the second belt conveyor 422 is rotatably mounted on the frame 1 via a shaft. The output shaft of the second lifting motor 421 is connected to any two drive wheels of the second belt conveyor 422, so that the second lifting motor 421 can drive the second belt conveyor 422 to work. The second belt conveyor 422 is arranged longitudinally. The second slide rail 423 is fixedly mounted on the frame 1 with screws and is also arranged longitudinally. The second slider 424 is slidably sleeved on the second slide rail 423.

[0042] The second transverse drive device 43 includes a second drive motor 431, a second bracket 432, a second movable beam 433, a second guide rail 434, and a second guide block 435. The body of the second drive motor 431 is fixedly mounted on the second bracket 432 via a connecting block. The second bracket 432 is fixedly connected to the second slider 424 of the second lifting device 42 via screws. The second bracket 432 is also fixedly connected to the conveyor belt of the second belt conveyor 422 via a connecting block. The second guide rail 434 is fixedly mounted on the second bracket 432 via screws and is arranged transversely. The second movable beam 433 is fixedly connected to the second guide block 435 via screws. The second guide block 435 is slidably fitted onto the second guide rail 434. The output shaft of the second drive motor 431 is connected to the second movable beam 433 via a connecting rod, enabling the second drive motor 431 to drive the second movable beam 433 to slide along the second guide rail 434.

[0043] There can be multiple first half-fingers 31, all of which are fixedly connected to the first movable beam 343 by screws. The first half-fingers 31 can move as the first movable beam 343 moves. There can also be multiple second half-fingers 41, all of which are fixedly connected to the second movable beam 443 by screws. The second half-fingers 41 can move as the second movable beam 443 moves. The multiple first half-fingers 41 and multiple second half-fingers 42 are arranged in a one-to-one correspondence.

[0044] Driven by the first lateral drive device 33 and the second lateral drive device 43, the first half-insertion finger 31 and the second half-insertion finger 41 can be inserted laterally into the paper feed path 10 from both sides of the paper feed path 10, and can also be disengaged from both sides of the paper feed path 10 by retraction.

[0045] Furthermore, the first half-insertion finger 31 and the second half-insertion finger 41 are respectively located below the first vacuum cutter roller 23 and the second vacuum cutter roller 24. When the first half-insertion finger 31 of the first half-insertion finger device 3 and the second half-insertion finger 41 of the second half-insertion finger device 4 enter the paper feeding channel 10, the first half-insertion finger 31 and the second half-insertion finger 41 can support the paper towels output by the paper towel handling mechanism 2 to the paper feeding channel 10. The entry amount of the first half-insertion finger device 31 and the second half-insertion finger device 41 into the paper feeding channel 10 is not greater than half the width of the paper feeding channel 10, and at the same time, the entry amount of the first half-insertion finger device 31 and the second half-insertion finger device 41 into the paper feeding channel 10 is not less than one-quarter of the width of the paper feeding channel 10.

[0046] Furthermore, a gap 20 is left between the first half-finger 31 of the first half-finger device 3 and the second half-finger 41 of the second half-finger device 4 that enter the paper feed path 10, and the end of the paper towel at the bottom supported on the first half-finger 31 and the second half-finger 41 can extend vertically from the gap 20.

[0047] The two-finger device 8 includes a first finger 81, a second finger 82, and a first propulsion device 83. The first propulsion device 83 includes a first beam 831, a first finger seat 832, a first cylinder 833, and a first cylinder seat 834. The cylinder body of the first cylinder 833 is fixedly mounted on the first cylinder seat 834 by screws. The piston rod of the first cylinder 833 is fixedly connected to the first beam 831 by screws. There can be multiple first finger seats 832, and all first finger seats 832 are fixedly connected to the first beam 831 by screws. There are also multiple first fingers 81, and each of the multiple first fingers 81 is fixedly connected to the multiple first finger seats 832 one-to-one by screws. There are also multiple second fingers 82, and the number of second fingers 82 is equal to the number of first fingers 81. The multiple second fingers 82 are connected to the multiple first fingers 81 by screws.

[0048] The single-finger device 9 includes a third finger 91 and a second propulsion device 92. The second propulsion device 92 includes a second beam 921, a second finger seat 922, a second cylinder 923, and a second cylinder seat 924. The cylinder body of the second cylinder 923 is fixedly mounted on the second cylinder seat 924 with screws. The piston rod of the second cylinder 923 is fixedly connected to the second beam 921 with screws. There can be multiple second finger seats 922, and all second finger seats 922 are fixedly connected to the second beam 921 with screws. There are also multiple third fingers 91, and the multiple third fingers 91 are fixedly connected to the multiple second finger seats 922 one-to-one with screws. The number of third fingers 91 is also equivalent to the number of first fingers 81.

[0049] The first cylinder seat 834 is fixedly connected to the first bracket 332 of the first lifting device 32 by screws, and the second cylinder seat 934 is fixedly connected to the second bracket 422 of the second lifting device 42 by screws, so that the two-finger device 8 can rise and fall together with the first half-finger insertion device 3, and the single-finger device 9 can rise and fall together with the second half-finger insertion device 4.

[0050] The first finger 81 has a first horizontal finger 811, the second finger 82 has a second horizontal finger 821, and the third finger 91 has a third horizontal finger 911. The first horizontal finger 811, the second horizontal finger 821, and the third horizontal finger 831 are arranged parallel to the horizontal plane, and the first horizontal finger 811 and the second horizontal finger 821 are arranged vertically, with the first horizontal finger 811 located above the second horizontal finger 821. A cavity 30 is provided between the adjacent first horizontal finger 811 and the second horizontal finger 821, and multiple third horizontal fingers 911 are arranged opposite to multiple cavities 30. The multiple third horizontal fingers 911 can extend into the multiple cavities 30 one by one.

[0051] Furthermore, the first horizontal finger 811 and the second horizontal finger 821 are both located below the first half-insertion finger 31, while the third horizontal finger 31 is located below the second half-insertion finger 41.

[0052] When the end of the paper towel at the bottom supported by the first half-insertion finger 31 and the second half-insertion finger 41 can extend vertically from the cavity 20, under the operation of the first propulsion device 93 and the second propulsion device 92, the first horizontal finger 811 and the second horizontal finger 821 of the double-finger device 8 can abut against one side of the part of the paper towel extending vertically from the cavity, and the third horizontal finger 911 of the single-finger device 9 can abut against the other side of the part of the paper towel extending vertically from the cavity, and the multiple third horizontal fingers 31 can be inserted into the multiple cavities 30 one by one.

[0053] The paper-holding lifting device 5 includes a paper-holding component 51, a third lifting device 52, and a connecting beam 53. The paper-holding component 51 is T-shaped, and the third lifting device 52 includes a third lifting motor 521, a third belt conveyor 522, a third slide rail 523, and a third slider 524. The body of the third lifting motor 521 is fixedly mounted on the frame 1 with screws. The drive wheel of the third belt conveyor 522 is rotatably mounted on the frame 1 via a shaft. The output shaft of the third lifting motor 521 is connected to any drive wheel of the third belt conveyor 522, so that the third lifting motor 521 can drive the third belt conveyor 522 to work. The third belt conveyor 522 is arranged longitudinally. The third slide rail 523 is fixedly mounted on the frame 1 with screws. The third slide rail 523 is also arranged longitudinally. The third slider 524 is slidably sleeved on the third slide rail 523. There are multiple paper support pieces 51. The bottom side of all paper support pieces 51 is fixedly connected to the connecting beam 53 via a connecting block. The connecting beam 53 is fixedly connected to the conveyor belt of the third belt conveyor 522 of the third lifting device 52 via a clamping block. At the same time, the connecting beam 53 is also fixedly connected to the third slider 524 via a connecting plate.

[0054] The paper-holding component 51 is located below the two-finger device 8 and the single-finger device 9, and can be raised and lowered under the drive of the third lifting motor 521. After the first half-finger device 3 and the second half-finger device 4 are disengaged from the paper feeding channel 10, and at the same time, the two-finger device 8 and the single-finger device 9 can also be separated from the part of the paper towel that extends vertically from the empty space, the paper-holding component 51 of the paper-holding lifting device 5 can support the paper towel output by the paper towel processing mechanism 2.

[0055] The paper pushing device 6 includes a pusher block 61, a pusher block seat 62, a guide mechanism 63, a pusher motor 64, and a base 65. Multiple pusher blocks 61 are fixedly mounted on the pusher block seat 62 with screws. The guide mechanism 63 includes a slider 631, a guide rail 632, and a guide rail seat 633. Preferably, there are two sliders 631, two guide rails 632, and two guide rail seats 633. Both guide rail seats 633 are fixedly mounted on the base 65 with screws. Two sliders 631 are slidably mounted on the two guide rails 632 respectively, and the sliders 631 are fixedly connected to the pusher block seat 62 with screws. Thus, the guide mechanism 63 is also connected to the pusher block seat 62. The base 65 is fixedly connected to the frame 1 with screws.

[0056] Once set, the pusher block 61 can move from one side to the other under the paper feed path 10, driven by the pusher motor 64. In addition, there are gaps between adjacent pushers 61, through which each paper support 51 can pass.

[0057] The paper output device 7 includes a conveyor motor 71, a main drive roller 72, unit belt conveyor mechanisms 73, and a support 74. There are multiple unit belt conveyor mechanisms 73, which can be conventional belt conveyor mechanisms with drive wheels and conveyor belts. The drive wheels of all unit belt conveyor mechanisms 73 are rotatably mounted on the support 74 via pins. The conveyor belts of each unit belt conveyor mechanism 73 bypass their own drive wheels and simultaneously bypass the main drive roller 72. The conveyor motor 71 is fixedly mounted on the support 74 with screws. The output shaft of the conveyor motor 71 is connected to the main drive roller 72 via a coupling. The main drive roller 72 is rotatably mounted on the support 74 via bearings, enabling the conveyor motor 71 to drive the main drive roller 72 to rotate.

[0058] The top of the paper output device 7 is also provided with a tray 75, which is connected to all unit belt conveyor mechanisms 73 by screws and is located below the top of the conveyor belt of each unit belt conveyor mechanism 73. It can be used to support the paper towel stack when conveying the paper towel stack.

[0059] The paper output device 7 is located on one side below the paper feed channel 10, and the height of the paper output device 7 matches the height of the pusher block 61. The paper lifting device 5 is configured to transport paper towels to the height of the pusher device 6. The pusher block 61 can be moved to push the stack of paper towels in the paper feed channel 10 laterally onto the paper output device 7.

[0060] The working principle of this high-stability tissue paper folding machine is as follows: After being processed by the tissue paper processing mechanism 2, the large outer tissue paper can be folded on the paper lifting device 5. Specifically, the large outer tissue paper can be fed to the first vacuum cutter roller 23 and the second vacuum cutter roller 24. With the action of the cylinder, the first cutting cutter roller and the second cutting cutter roller can intermittently approach the first vacuum cutter roller 23 and the second vacuum cutter roller 24 to cut the large tissue paper on the first vacuum cutter roller 23 and the second vacuum cutter roller 24 to form single tissue paper. The single tissue paper is cross-conveyed to the paper feeding channel 10 under the operation of the first vacuum cutter roller 23 and the second vacuum cutter roller 24. Through the alternating pressing of the first paper fork 5 and the second paper fork 6, the tissue paper can be pushed into the paper feeding channel 10.

[0061] Subsequently, under the operation of the first transverse drive device 33 and the second transverse drive device 43, the first half-insertion finger 31 and the second half-insertion finger 41 can be simultaneously inserted from both sides of the paper feed path 10. Specifically, the first drive motor 331 can drive the first movable beam 333 to move along the first guide rail 334, so that the first half-insertion finger 331 located on the first movable beam 333 moves to achieve the insertion action. The second drive motor 431 can drive the second movable beam 433 to move along the second guide rail 434, so that the second half-insertion finger 42 located on the second movable beam 433 moves to achieve the insertion action. The entry amount of the first half-insertion finger 31 and the second half-insertion finger 41 into the paper feed path 10 is less than half of the paper feed path 10, so as to avoid contact with the middle arched part of the paper towel input into the paper feed path 10, and to leave a gap 20 between the first half-insertion finger 31 and the second half-insertion finger 41.

[0062] The tissue entering the paper feed path 10 can be supported by the first half-insertion finger 31 and the second half-insertion finger 41, and at this time, the end of the tissue at the bottom supported by the first half-insertion finger 31 and the second half-insertion finger 41 can extend vertically from the empty space 20.

[0063] Furthermore, under the operation of the first lifting device 32 and the second lifting device 42, the first half-finger 31 and the second half-finger 41 can also descend as the amount of paper towels input into the paper feeding channel 10 increases. Specifically, the first lifting motor 321 can drive the first belt conveyor 322 to work, so that the first transverse drive device 33 moves along the first slide rail 323, thereby the first half-finger 31 connected to the first transverse drive device 33 also moves accordingly. The second lifting motor 421 can drive the second belt conveyor 422 to work, so that the second transverse drive device 43 moves along the second slide rail 423, thereby the second half-finger 41 connected to the second transverse drive device 43 also moves accordingly.

[0064] Simultaneously, the first propulsion device 83 of the two-finger device 8 is activated. The first cylinder 833 of the first propulsion device 83 drives the first finger seat 832 to move laterally, so that the first horizontal finger 811 and the second horizontal finger 821 can contact one side of the part of the paper towel that extends vertically from the empty space 20. At the same time, the second propulsion device 92 of the single-finger device 9 is activated. The second cylinder 923 of the second propulsion device 92 drives the second finger seat 922 to move laterally, so that the third horizontal finger 911 can contact the other side of the paper towel to be folded in half. As the first cylinder 833 and the second cylinder 923 continue to work, the third horizontal finger 31 can drive the part of the paper towel that is in contact with it to insert into the cavity 30 opposite to it, so that the end of the paper towel is folded.

[0065] Then, the paper-holding component 51 on the paper-holding lifting device 5 can rise to below the paper towel with folds at the above end under the operation of the third lifting motor 521. Specifically, the third lifting motor 521 can drive the third belt conveyor 522 to work, so that the paper-holding component 51 connected to the third belt conveyor 522 can move along the third slide rail 523 accordingly, thereby realizing the lifting of the paper-holding component 51.

[0066] Then, the first lateral drive device 33 and the first lifting device 32 of the first half-finger device 3 operate, causing the first half-finger 31 to disengage from the paper feed path 10 and reset. The second lateral drive device 43 and the second lifting device 42 of the second half-finger device 4 operate, causing the second half-finger 41 to disengage from the paper feed path 10 and reset. At the same time, the first push device 83 of the double-finger device 8 and the second push device 92 of the single-finger device 9 operate, allowing the first finger 81, the second finger 82, and the third finger 91 to separate from the portion of the paper towel that extends vertically from the empty space 20 and reset.

[0067] Then the tissue paper supported by the first half-insertion finger 31 and the second half-insertion finger 41 can be supported by the paper support member 51. At the same time, the folded part of the tissue paper extending from the empty position 20 can be pressed onto the paper support member 51 to maintain its folded state, thus realizing the half-fold of that part.

[0068] Furthermore, the tissues output from the tissue handling mechanism 2 to the paper feeding channel 10 can now be supported by the paper support member 51, and under the operation of the third lifting motor 521, the paper support member 51 can descend as more tissues are input into the paper feeding channel 10.

[0069] When the number of tissues on the paper holder 51 is equal to the number of tissues required for the tissue stack, under the operation of the first lateral drive device 33 and the second lateral drive device 43, the first half-insertion finger 31 and the second half-insertion finger 41 can be simultaneously inserted from both sides of the paper feed path 10. At this time, the first half-insertion finger 31 and the second half-insertion finger 41 can replace the paper holder 51 in supporting the output tissues, and the tissues input into the paper feed path 10 become folded on the first half-insertion finger 31 and the second half-insertion finger 41, and are separated into tissue stacks with a specific number of tissues on the paper holder 51 of the paper lifting device 5. Afterwards, under the operation of the first lifting device 32 and the second lifting device 42, the first half-insertion finger 31 and the second half-insertion finger 41 can also descend as the number of tissues input into the paper feed path 10 increases.

[0070] At the same time, the third lifting motor 521 can drive the paper support 51 to move down quickly until the paper towels on the paper towel stack on the paper support 51 are lifted to the height of the paper pusher 6.

[0071] At this time, the paper pushing device 6 can work, and the pushing motor 64 can drive the push block seat 62 to move. The movement of the push block seat 62 is also restricted by the guide rail 632. The push block seat 62 will move along the guide rail 632, and the push block 61 connected to the push block seat 61 will also move. The push block 61 can move laterally from one side below the paper feeding channel 10 to the other side below the paper feeding channel 10. During its movement, it can push the paper towel stack on the paper support 51 onto the paper output device 7.

[0072] Afterwards, the paper output device 7 can send the paper towel stacks on it to the subsequent processing equipment. Specifically, the conveyor motor 71 of the paper output device 7 can drive the main drive roller 72 to rotate. The rotation of the main drive roller 72 can drive the various unit belt conveyor mechanisms 73 to work synchronously to convey the paper towel stacks on the paper output device 7.

[0073] After the pusher block 61 of the paper pushing device 6 pushes the stack of tissues onto the paper output device 7, the third lifting motor 521 can drive the paper support 51 to rise, so as to move it below the first half-insertion finger 31 and the second half-insertion finger 41.

[0074] Furthermore, while the first half-insertion finger 31 and the second half-insertion finger 41 support the tissue, the two-finger device 8 and the single-finger device 9 can work to fold the end of the tissue that is supported on the first half-insertion finger 31 and the second half-insertion finger 41 and protrude from the empty space in half again. Then the paper support piece 51 can rise to support the tissue again... This cycle repeats, and a stack of tissues with the ends of the paper half-folded can be formed. The production process does not require stopping the machine, realizing continuous automatic tissue stacking production, which greatly improves production efficiency.

[0075] In addition, the first half-finger insertion device 3 or the second half-finger insertion device 4 is provided with an air blowing hole 40. In this embodiment, it is preferable that the first half-finger 31 of the first half-finger insertion device 3 and the second half-finger 41 of the second half-finger insertion device 4 are both provided with air blowing holes 40.

[0076] If the air inlet 40 can be connected to an external air source, then when it is not necessary to fold the ends of the paper towel stack in half, when the first half-insertion finger 31 and the second half-insertion finger 41 enter the paper feeding channel 10, and the end of the paper towel at the bottom supported by the first half-insertion finger 31 and the second half-insertion finger 41 can extend vertically from the empty space 20, the two-finger device 8 and the single-finger device 9 can remain inactive, and instead, the air source will blow air out through the air inlet 40. The airflow can blow the paper towel extending from the empty space 20 into a horizontal arrangement. Thus, when the first half-insertion finger 31 and the second half-insertion finger 41 are removed from the paper feeding channel 10, the paper holding part 51 of the paper holding lifting device 5 can support the paper towel output by the paper towel processing mechanism 2, and the end of the paper towel will not be folded on the paper holding part 51, that is, there will be no half-folding effect.

[0077] 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 tissue folding machine capable of stably folding tissues in half, characterized in that, It includes a frame and a tissue handling mechanism mounted on the frame, a first half-finger insertion device, a second half-finger insertion device, a paper lifting device, a paper pushing device, a paper output device, a two-finger device, and a single-finger device. The frame is equipped with a paper feed path, and the tissue paper handling mechanism can output tissue paper into the paper feed path. The first half-finger device and the second half-finger device can enter and exit from both sides of the paper feed path, respectively. When the first and second half-finger devices enter the paper feed path, they support the paper towels output by the paper towel handling mechanism. The entry depth of each device is no greater than half the width of the paper feed path. A gap is left between the first and second half-finger devices, allowing the bottom end of the supported paper towel to extend through this gap. The two-finger device and the single-finger device respectively abut against the sides of the portion of the paper towel extending from the gap. The single-finger device can extend into the two-finger device. When the first and second half-finger insert devices disengage from the paper feed path, the two-finger device and the single-finger device can separate from the portion of the tissue paper extending from the empty space, and the paper-supporting lifting device can support the tissue paper output by the tissue paper handling mechanism. The paper lifting device can transport the paper towel to the height of the paper pushing device, and the paper pushing device can push the paper towel laterally onto the paper output device.

2. The tissue folding machine capable of stabilizing half-folding of tissues according to claim 1, characterized in that, The first half-finger device or the second half-finger device is provided with an air blowing hole.

3. The tissue folding machine capable of stabilizing half-folding of tissues according to claim 1, characterized in that, The first half-insertion device includes a first half-insertion, a first lifting device, and a first lateral drive device. The first lateral drive device is connected to the first lifting device, the first half-insertion is connected to the first lateral drive device, and the first lifting device is mounted on the frame.

4. The tissue folding machine capable of stabilizing half-folding of tissues according to claim 1, characterized in that, The second half-finger device includes a second half-finger, a second lifting device, and a second lateral drive device. The second lateral drive device is connected to the second lifting device, the second half-finger is connected to the second lateral drive device, and the second lifting device is mounted on the frame.

5. The tissue folding machine capable of stabilizing half-folding of tissues according to claim 1, characterized in that, The paper-holding lifting device includes a paper-holding component, a third lifting device, and a connecting beam. The paper-holding component is T-shaped and connected to the connecting beam. The connecting beam is connected to the third lifting device, which is mounted on the frame.

6. The tissue folding machine capable of stabilizing half-folding of tissues according to claim 1, characterized in that, The paper pushing device includes a push block, a push block seat, a guide mechanism, a push motor, and a base. The push block is mounted on the push block seat, and the push motor and the guide mechanism are both mounted on the base. The push motor is connected to the push block seat, the guide mechanism is connected to the push block seat, and the base is connected to the frame.

7. The tissue folding machine capable of stabilizing half-folding of tissues according to claim 1, characterized in that, The paper output device includes a conveyor motor, a main drive roller, a unit belt conveyor mechanism, and a support. There are multiple unit belt conveyor mechanisms. The main drive roller and the multiple unit belt conveyor mechanisms are mounted on the support, and the support is mounted on the machine frame.

8. The tissue folding machine capable of stabilizing half-folding of tissues according to claim 1, characterized in that, The tissue paper processing mechanism includes a first cutting blade roller, a second cutting blade roller, a first vacuum blade roller, a second vacuum blade roller, a first paper-pushing fork, and a second paper-pushing fork. The first cutting blade roller cooperates with the first vacuum blade roller, and the second cutting blade roller cooperates with the second vacuum blade roller. The first paper-pushing fork is located below the first vacuum blade roller, and the second paper-pushing fork is located below the second vacuum blade roller.

9. The tissue folding machine capable of stabilizing half-folding of tissues according to claim 1, characterized in that, The two-finger device includes a first finger, a second finger, and a first propulsion device. The first propulsion device is connected to the first finger, and the second finger is connected to the first finger. The first finger has a first horizontal finger, and the second finger has a second horizontal finger. The first horizontal finger and the second horizontal finger are arranged vertically and vertically, with a cavity between them. The first propulsion device is connected to a first half-finger insertion device.

10. The tissue folding machine capable of stabilizing half-folding of tissues according to claim 9, characterized in that, The single-finger device includes a third finger and a second propulsion device. The second propulsion device is connected to the third finger. The third finger has a third horizontal finger, which is positioned opposite to the cavity. The second propulsion device is connected to a second half-finger insertion device.

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