A paper drawing folding machine with adjustable drawing number

Abstract

The application provides a paper drawing folding machine with adjustable paper drawing number, which comprises a box body, a receiving plate, two bottom knife rollers, two line pressing rollers, an upper knife fixed above each bottom knife roller, a paper folding claw arranged below each line pressing roller, a plate changer, a mover, a limiting spring and a speed changer, a rectangular lower passing channel arranged below the line pressing rollers, a conveyor belt arranged below the lower passing channel, a plate changing channel with a rectangular cross section formed in the sidewall of the lower passing channel, a plurality of receiving plates placed in the plate changing channel, the plate changer installed in the plate changing channel, the mover installed on the opposite side of the plate changing channel and movable up and down, the input end and the output end of the speed changer connected with the bottom knife roller and the mover respectively, and the limiting spring arranged on the inner sidewall of the lower passing barrel. The application solves the problem of unadjustable paper stacking number.

Description

Technical Field

[0001] This invention relates to the field of tissue paper processing equipment, and more particularly to a tissue paper folding machine with adjustable draw count. Background Technology

[0002] In the tissue paper industry, traditional folding machines are semi-automatic, requiring manual paper sorting and additional manual labor to feed the sorted paper onto a conveyor line for large rotary cutting. The entire process necessitates continuous paper sorting and feeding, consuming significant manpower. Furthermore, environmental factors can easily affect paper quality. Therefore, automated tissue folding machines are gradually being adopted for paper sorting.

[0003] As described in the "Automatic Paper Folding Machine" with application number "CN201410402141.6", the paper is driven by a power roller that can absorb paper and has a bottom knife on its surface. The paper is cut by the cooperation of the fixed knife roller and the bottom knife, and then sent to the folding roller below to press out creases. After that, a mechanical claw replaces the human hand to stack the paper on the receiving platform. During the stacking process, the receiving platform moves down continuously. After a certain number of papers are stacked, the receiving platform is removed, and the paper on the upper side is sent to the next stage. In actual operation, after the receiving platform is removed, a transition plate moves to the bottom of the mechanical finger to receive the subsequent paper. After the receiving platform returns, the transition plate is pulled out, and the paper on the transition plate will fall onto the receiving platform.

[0004] Because folding machines are relatively precise instruments, adjusting the number of papers stacked on the receiving platform each time can only be achieved by controlling the rotation speed of the fixed blade roller and the folding roller. However, if the rotation speed of the fixed blade roller and the folding roller is too slow, the cutting effect will be poor, and the paper may not be able to be cut due to its extensibility. If the rotation speed of the fixed blade roller and the folding roller is too fast, the paper transfer speed of the receiving platform needs to be increased to ensure that there are not too many papers stacked on the transition plate, which will affect the normal operation of the mechanical fingers. At the same time, when the transition plate is pulled out, the paper stacked on the transition plate may be misaligned, and increasing the transfer speed of the receiving platform may cause the paper on the receiving platform to fall off. Therefore, existing folding machines are usually customized, with fixed sequence of each component, and can only be manufactured with a fixed number of draws. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a tissue folding machine with an adjustable number of tissues, which solves the problem that the number of tissues stacked cannot be adjusted in existing technologies.

[0006] According to an embodiment of the present invention, a tissue folding machine with adjustable number of draws includes a housing, a receiving plate, two bottom knife rollers rotating in opposite directions and located on the same horizontal plane, and two pressure rollers rotating in opposite directions and located on the same horizontal plane. An upper blade is fixed above each bottom knife roller and abuts against the bottom knife roller. A folding claw is provided below each pressure roller.

[0007] It also includes a plate changer, a mover, a limiting spring, and a gearbox. A rectangular lowering channel is provided below the pressure roller, and a conveyor belt is provided below the lowering channel. A plate changing channel with a rectangular cross-section is opened on the side wall of the lowering channel. Multiple receiving plates are placed in the plate changing channel. The plate changer is installed in the plate changing channel and can push the receiving plates into the lowering channel. The mover is installed on the opposite side of the plate changing channel and can move up and down. The input and output ends of the gearbox are connected to the bottom cutter roller and the mover, respectively, to control the speed of the mover's up and down movement. A limiting spring is also provided on the inner side wall of the lowering barrel to fix the receiving plates entering the lowering channel from the plate changing channel during the movement of the mover.

[0008] Preferably, the plate changing channel is an inverted T-shaped three-way channel, one end of the plate changing channel is connected to the lowering channel, the other end is provided with a hydraulic push rod, and the upper part of the plate changing channel is connected to the placement channel.

[0009] Preferably, a plurality of negative pressure pipes are provided in the middle of the bottom cutter roller and the pressing roller, and an annular transition groove is provided coaxially at one end of the bottom cutter roller and the pressing roller. A closed tube is embedded in the transition groove, and a plurality of interconnected negative pressure adsorption holes are provided between the negative pressure pipes and the transition groove, and between the transition groove and the side of the bottom cutter roller / pressing roller.

[0010] Preferably, the sealed tube includes a tubular sealing silicone pad, a tube frame, and a fixing rod. The tube frame is disposed inside the sealing silicone pad. One end of the fixing rod is placed inside the sealing silicone pad and fixedly connected to the tube frame, and the other end is fixedly connected to the side wall of the box. The side of the sealing silicone pad is provided with an opening.

[0011] Preferably, the mover includes a connecting rod, an incomplete gear, and two sets of supporting components. The connecting rod is placed on the outside of the lower pipe. A connecting gear is fixedly sleeved in the middle of the connecting rod, and transmission gears and springs are fixed at both ends. The incomplete gear meshes with the connecting gear.

[0012] The lowering channel has symmetrical strip-shaped openings on its side walls, which penetrate the side walls of the lowering channel. One end of each of the two sets of lifting components passes through the strip-shaped opening and is placed inside the lowering channel, while the other end meshes with the transmission gear and can move upward as the transmission gear rotates.

[0013] Preferably, grooves are provided on the two opposite sidewalls of the lowering channel, the lower end of the limiting spring is fixed in the groove, and the upper end is placed in the lowering channel and is located on the same water surface as the plate changing channel.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The plate changer pushes a receiving plate out of the plate changing channel and places it on the upper side of the mover. The bottom blade roller and the upper blade work together to cut the excessively long raw paper into shorter tissues. The creasing roller can press creases in the middle of the cut tissues. Then the folding claw folds them and stacks them on the receiving plate. After a certain number of papers are stacked on the receiving plate, the receiving plate moves down with the mover under the action of gravity. At this time, the plate changer pushes the new receiving plate in the plate changing channel into the lower channel and is limited by the limiting spring. After the receiving plate is placed on the conveyor belt, the mover immediately returns, squeezes the limiting spring, releases its limitation on the receiving plate, and the receiving plate falls on the mover, and the cycle starts again.

[0016] Since the rotation speed of the bottom cutter roller remains constant, the number of tissues cut off in one revolution remains unchanged. Therefore, the number of tissues stacked on the receiving plate per unit time can be controlled by the speed change of the mover through the gearbox, which changes the speed of the mover and controls the time it takes for the mover to move up and down once. This achieves an adjustable number of tissues. At the same time, since the receiving plate only moves up and down within the lower channel, the tissues stacked on the receiving plate will not tip over. Attached Figure Description

[0017] Figure 1 This is a front sectional view of the folding machine according to an embodiment of the present invention.

[0018] Figure 2 This is an enlarged view of position A in an embodiment of the present invention.

[0019] Figure 3 This is a side sectional view of position A in an embodiment of the present invention.

[0020] Figure 4 This is a structural diagram of position B in an embodiment of the present invention.

[0021] Figure 5 This is a structural diagram of the bottom cutter roller according to an embodiment of the present invention.

[0022] In the above attached diagram: 1. Box body; 2. Placement channel; 3. Negative pressure pipe; 4. Bottom blade roller; 5. Upper blade; 6. Thread pressing roller; 7. Folding claw; 8. Plate changing channel; 9. Hydraulic push rod; 10. Conveyor belt; 11. Connecting gear; 12. Incomplete gear; 13. Rack; 14. Support plate; 15. Lowering channel; 16. Limiting spring; 17. Slider; 18. Fixing rod; 19. Sealing silicone pad; 20. Negative pressure adsorption hole; 21. Transition groove; 22. Detailed Implementation

[0023] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 5 As shown in the figure, this invention provides a tissue folding machine device with adjustable number of tissues, including a housing 1, a receiving plate 14, two bottom knife rollers 4 rotating in opposite directions and located on the same horizontal plane, and two pressure rollers 6 rotating in opposite directions and located on the same horizontal plane. Each bottom knife roller 4 has an upper blade 5 fixed above it, which abuts against the bottom knife roller 4. The side of the bottom knife roller 4 is provided with a bottom blade that cooperates with the upper blade 5. The cooperation of the upper blade 5 and the bottom blade can divide the raw paper into tissues of suitable length. Each pressure roller 6 is provided with a folding claw 7 below it.

[0025] In addition, it also includes a plate changer, a mover, a limiting spring 17, and a gearbox. A rectangular lowering channel 16 is provided below the pressure roller 6, and a conveyor belt 10 is provided below the lowering channel 16. A plate changing channel 8 with a rectangular cross section is opened on the side wall of the lowering channel 16. Multiple receiving plates 14 are placed in the plate changing channel 8. The plate changer is installed in the plate changing channel 8 and can push the receiving plates 14 into the lowering channel 16. The mover is installed on the opposite side of the plate changing channel 8 and can move up and down. The input end and output end of the gearbox are connected to the bottom cutter roller 4 and the mover, respectively, to control the speed of the mover's up and down movement. A limiting spring 17 is also provided on the inner side wall of the lowering barrel to fix the receiving plates 14 that enter the lowering channel 16 from the plate changing channel 8 during the movement of the mover.

[0026] The plate changer pushes a receiving plate 14 out of the plate changing channel 8 and places it on the upper side of the mover. A large roll is placed outside the folding machine. The raw paper is conveyed to the bottom knife roller 4 by the transmission components such as the transmission roller. The bottom knife and the upper blade 5 on the bottom knife roller 4 work together to cut the excessively long paper into shorter tissues. The pressure roller 6 can press creases in the middle of the cut tissues. Then the folding claw 7 folds and stacks them on the receiving plate 14. After a certain number of papers are stacked on the receiving plate 14, the receiving plate 14 moves down with the mover under the action of gravity. At this time, the plate changer pushes the new receiving plate 14 in the plate changing channel 8 into the lower channel 16 and is limited by the limiting spring 17. After the receiving plate 14 is placed on the conveyor belt 10, the mover immediately returns, squeezes the limiting spring 17, releases its limitation on the receiving plate 14, and the receiving plate 14 falls on the mover and the cycle starts again.

[0027] Since the rotation speed of the bottom cutter roller 4 remains constant, the number of tissues cut off in one rotation remains constant. Therefore, the number of tissues stacked on the receiving plate 14 per unit time is controlled by the speed change of the mover through the gearbox, which changes the speed of the mover to control the time it takes for the mover to move up and down once. The less time it takes, the fewer tissues are stacked on the receiving plate 14, and vice versa, thus achieving an adjustable number of tissues. At the same time, since the receiving plate only moves up and down within the lower channel 16, the tissues stacked on the receiving plate will not tip over.

[0028] The plate changing channel 8 is an inverted T-shaped three-way channel. One end of the plate changing channel 8 is connected to the lowering channel 16, and the other end is equipped with a hydraulic push rod 9. The upper part of the plate changing channel 8 is connected to the placement channel 2. The receiving plate 14, the placement channel 2 and the lowering channel 16 have the same cross-section.

[0029] To prevent multiple receiving plates 14 from being stacked flat in the channel, when the mover moves the old receiving plate 14 down, the hydraulic push rod 9 extends and pushes the bottom receiving plate 14 from the plate changing channel 8 into the lowering channel 16, where it is limited by the limiting spring 17. Subsequent paper pulls are then stacked on the new receiving plate 14. By directly replacing the receiving plate 14, the previous transition plate is replaced to assist in the receiving, thus preventing the paper pull from being damaged when it is pulled out.

[0030] like Figure 5 As shown, multiple negative pressure pipes 3 are provided in the middle of the bottom cutter roller 4 and the pressure roller 6. An annular transition groove 22 is coaxially provided at one end of the bottom cutter roller 4 and the pressure roller 6. A closed tube is embedded in the transition groove 22. Multiple interconnected negative pressure adsorption holes 21 are provided between the negative pressure pipes 3 and the transition groove 22, and between the transition groove 22 and the side of the bottom cutter roller 4 / pressure roller 6.

[0031] The sealed tube includes a tubular sealing silicone pad 20, a tube support, and a fixing rod 19. The tube support is located inside the sealing silicone pad 20. One end of the fixing rod 19 is placed inside the sealing silicone pad 20 and fixedly connected to the tube support, and the other end is fixedly connected to the side wall of the housing 1. The side of the sealing silicone pad 20 has a rectangular opening. The tube support allows the sealing silicone pad 20 to remain in a tubular shape and fit against the side wall of the transition groove 22.

[0032] The bottom knife roller 4 rotates continuously, while the sealed tube remains stationary under the action of the fixing rod 19, not rotating with the bottom knife roller 4. As shown in the figure, because the tissue paper is relatively light, it needs to be adsorbed by the negative pressure pipe 3 and the negative pressure suction hole. In actual operation, the contact area between the left bottom knife roller 4 and the left pressure roller 6 and the tissue paper is only the upper right quarter circle; the contact area between the right bottom knife roller 4 and the tissue paper is only the left half circle; and the contact area between the right pressure roller 6 and the tissue paper is only the upper left quarter circle. Therefore... The external vacuum extraction machine only evacuates the negative pressure pipe 3 corresponding to the part that contacts the paper. The opening of the closed pipe installed in the transition groove 22 and the bottom knife roller 4 / pressure roller 6 are the same as the paper contact surface. For example, the sealing silicone pad 20 installed in the buffer groove of the bottom knife roller 4 on the left has a quarter-circle opening on the upper right side. The other sealing silicone pads 20 are similar. Thus, when paper needs to be absorbed, the negative pressure suction hole 21 is connected to the negative pressure pipe 3, and when paper does not need to be absorbed, the negative pressure pipe 3 is closed.

[0033] Therefore, as the bottom blade roller 4 and the pressure roller 6 rotate, multiple negative pressure pipes 3 will intermittently connect to the vacuum extraction machine. However, since it takes a certain amount of time for the negative pressure adsorption hole 21 corresponding to the negative pressure pipe 3 to return to normal pressure after it is separated from the paper, it will draw outside air into the vacuum pipe from the vacuum adsorption hole. After the paper is separated from the negative pressure adsorption hole 21, the sealing tube immediately seals the negative pressure adsorption hole 21 to prevent paper scraps or dust in the air from being drawn into the negative pressure pipe 3, blocking the negative pressure adsorption hole 21 and affecting the normal operation of the vacuum extraction machine.

[0034] The mover includes a connecting rod, an incomplete gear 12, and two sets of supporting components. The connecting rod is placed on the outside of the lower pipe. A connecting gear 11 is fixedly sleeved in the middle of the connecting rod, and transmission gears and springs are fixed at both ends. The incomplete gear 12 meshes with the connecting gear 11.

[0035] The sidewall of the lowering channel 16 is symmetrically provided with strip-shaped openings that penetrate the sidewall of the lowering channel 16. One end of each of the two sets of lifting components passes through the strip-shaped opening and is placed inside the lowering channel 16, while the other end meshes with the transmission gear and can move upward as the transmission gear rotates.

[0036] The transfer assembly includes a rack 13 and a support strip 15. One end of the support strip 15 is fixedly connected to the upper end of the rack 13, and the other end is placed in the lower channel 16. A groove is provided on the side wall of the strip-shaped opening. A slider 18 is symmetrically fixed at the end of the support strip 15 near the rack 13 and can be embedded in the groove to ensure that the support strip 15 can only move up and down. The front and rear sections of the lower side of the receiving plate 14 rest on the two support strips 15 respectively.

[0037] The bottom roller 4 rotates, which drives the gearbox and the incomplete gear 12 to rotate, thereby driving the connecting gear 11 and the transmission gear to rotate, causing the entire support assembly to move downward. The spring begins to store energy. Under the influence of gravity, the receiving plate 14 moves downward along with the support bar 15 until it is placed on the conveyor belt 10, and then moves with the conveyor belt 10 to the next stage.

[0038] After the receiving plate 14 is placed on the conveyor belt 10, the incomplete gear 12 and the connecting gear 11 no longer mesh. The spring drives the connecting rod, the connecting gear 11 and the transmission gear to reverse, driving the rack 13 and the support bar 15 to move up to their original positions. Then the incomplete gear 12 meshes with the connecting gear 11 again, driving the support bar 15 to move down again.

[0039] By controlling the rotational speed of the incomplete gear 12 through the gearbox, the moving speed of the support strip 15 can be controlled, thus controlling the time it takes for the support strip 15 to move from the top to the drive belt and back to the top. The less time there is, the fewer tissues are stacked on the receiving plate 14, thereby achieving adjustable tissue count.

[0040] Grooves are provided on the two opposite side walls of the lowering channel 16. The lower end of the limiting spring 17 is fixed in the groove, and the upper end is placed in the lowering channel 16 and is located on the same water surface as the plate changing channel 8.

[0041] When the support strip 15 is at its top, it will squeeze the limiting spring 17 into the groove. When the support strip 15 moves down, the receiving plate 14 moves down with it. Then the limiting spring 17 rebounds and the upper end is placed in the lowering channel 16. Then the new receiving plate 14 is pushed into the lowering channel 16 by the hydraulic push rod 9. The front and rear sections of the new receiving plate 14 rest on the two limiting springs 17 respectively to receive the tissue.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A tissue paper folding machine with adjustable number of draws, comprising a housing, a receiving plate, two bottom knife rollers rotating in opposite directions and located on the same horizontal plane, and two pressure rollers rotating in opposite directions and located on the same horizontal plane, wherein an upper blade is fixed above each bottom knife roller and abuts against the bottom knife roller, and a folding claw is provided below each pressure roller; Its features are: It also includes a plate changer, a mover, a limiting spring, and a gearbox. A rectangular lowering channel is provided below the pressure roller, and a conveyor belt is provided below the lowering channel. A plate changing channel with a rectangular cross-section is opened on the side wall of the lowering channel. Multiple receiving plates are placed in the plate changing channel. The plate changer is installed in the plate changing channel and can push the receiving plates into the lowering channel. The mover is installed on the opposite side of the plate changing channel and can move up and down. The input end and output end of the gearbox are connected to the bottom cutter roller and the mover, respectively, to control the speed of the mover's up and down movement. A limiting spring is also provided on the inner side wall of the lowering channel to fix the receiving plates entering the lowering channel from the plate changing channel during the movement of the mover. The mover includes a connecting rod, an incomplete gear, and two sets of lifting components. The connecting rod is placed outside the lowering channel. A connecting gear is fixedly sleeved in the middle of the connecting rod, and transmission gears and springs are fixed at both ends. The incomplete gear meshes with the connecting gear. The sidewall of the lowering channel is symmetrically provided with strip-shaped openings that penetrate the sidewall of the lowering channel. One end of each of the two sets of lifting components passes through the strip-shaped openings and is placed inside the lowering channel, while the other end meshes with the transmission gear and can move with the rotation of the transmission gear. The lifting assembly includes a rack and a support bar. One end of the support bar is fixedly connected to the upper end of the rack, and the other end is placed in the lowering channel. A sliding groove is provided on the side wall of the strip-shaped opening. A slider is symmetrically fixed at the end of the support bar near the rack and can be embedded in the sliding groove. The bottom roller rotates, which drives the gearbox and the incomplete gear to rotate, thereby driving the connecting gear and the transmission gear to rotate, which in turn drives the entire support assembly to move downward. The spring begins to store energy, and under the influence of gravity, the receiving plate moves downward along with the support bar until it is placed on the conveyor belt, and then moves with the conveyor belt to the next stage. After the receiving plate is placed on the conveyor belt, the incomplete gear and the connecting gear no longer mesh. The spring drives the connecting rod, the connecting gear and the transmission gear to reverse, which drives the rack and the support bar to move up to their original positions. Then the incomplete gear meshes with the connecting gear again, which drives the support bar to move down again.

2. The adjustable-number tissue folding machine as described in claim 1, characterized in that: The plate changing channel is an inverted T-shaped three-way channel. One end of the plate changing channel is connected to the lowering channel, and the other end is equipped with a hydraulic push rod. The upper part of the plate changing channel is connected to the placement channel.

3. The adjustable-number tissue folding machine as described in claim 2, characterized in that: The receiving plate, placement channel, and lowering channel have the same cross-section.

4. The adjustable-number tissue folding machine as described in claim 1, characterized in that: Multiple negative pressure pipes are provided in the middle of the bottom cutter roller and the pressure roller. An annular transition groove is coaxially provided at one end of the bottom cutter roller and the pressure roller. A closed tube is embedded in the transition groove. Multiple interconnected negative pressure adsorption holes are provided between the negative pressure pipes and the transition groove, and between the transition groove and the side of the bottom cutter roller / pressure roller.

5. A tissue folding machine with adjustable draw count as described in claim 4, characterized in that: The sealed tube includes a tubular sealing silicone pad, a tube frame, and a fixing rod. The tube frame is disposed inside the sealing silicone pad. One end of the fixing rod is placed inside the sealing silicone pad and fixedly connected to the tube frame, and the other end is fixedly connected to the side wall of the box. The side of the sealing silicone pad has an opening.

6. The adjustable-number tissue folding machine as described in claim 1, characterized in that: The two opposite side walls of the lowering channel are provided with grooves. The lower end of the limiting spring is fixed in the groove, and the upper end is placed in the lowering channel and is located on the same water surface as the plate changing channel.

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