Toilet paper roll and rewinding device for production of toilet paper roll

Abstract

The invention discloses a toilet paper roll and a rewinding device for production of the toilet paper roll, and belongs to the field of toilet paper and toilet paper production equipment.The rewinding device comprises two rewinding rollers which are horizontally and rotationally arranged, a water distribution pipe is arranged above the two rewinding rollers, and a plurality of atomizing nozzles are evenly arranged on the water distribution pipe in the axial direction of the rewinding rollers; water or viscous glue liquid is sprayed to a toilet paper layer wound in a toilet paper roll through the atomization spray head, then drying treatment is conducted, a bonded and hardened inner rolling layer is formed in the produced toilet paper roll, the inner rolling layer is used for replacing a traditional paper tube, the manufacturing cost is reduced, and the effects of supporting and convenient hanging can be achieved.

Description

Technical Field

[0001] The invention relates to the field of toilet paper and toilet paper production equipment, in particular to a toilet paper roll and a rewinding device for its production. Background Art

[0002] Toilet paper rolls are divided into two types: those with paper tubes and those without paper tubes. The paper tubes in toilet paper rolls with paper tubes are usually made of raw materials such as waste paper or wood pulp, which plays a role of support and convenient hanging. However, the cost of the paper tubes is relatively high. After the toilet paper roll is used up, the internal paper tubes are likely to be discarded, causing great waste. Although toilet paper rolls without paper tubes are cheaper, they cannot have the advantages of toilet paper rolls with paper tubes due to their solid internal structure. Therefore, it is currently necessary to develop a toilet paper roll that has the advantages of both, and to develop corresponding production equipment. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a toilet paper roll having the advantages of both toilet paper rolls with paper tubes and toilet paper rolls without paper tubes, and a rewinding device for production thereof.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] A toilet paper roll comprises an inner roll layer and an outer roll layer, wherein the inner roll layer is a wound adhesive hardened toilet paper, and the outer roll layer is a wound soft toilet paper, and the toilet paper wound around the inner roll layer and the toilet paper wound around the outer roll layer are an integrated structure.

[0006] As a preferred technical solution, the inner roll layer is a hollow structure.

[0007] As a preferred technical solution, the inner roll layer is circumferentially corrugated.

[0008] A rewinding device for producing the toilet paper roll comprises two horizontally rotatable rewinding rollers, a water distribution pipe is arranged above the two rewinding rollers, a plurality of atomizing nozzles are evenly arranged on the water distribution pipe along the axial direction of the rewinding rollers, the atomizing nozzles face between the two rewinding rollers, and a water spraying power element is connected to the water distribution pipe.

[0009] As a preferred technical solution, it also includes an inner support rod for winding toilet paper.

[0010] As a preferred technical solution, a plurality of raised portions and recessed portions are alternately provided in the circumferential direction of the inner support rod.

[0011] As a preferred technical solution, one end of the inner support rod is fixedly connected to a baffle.

[0012] As a preferred technical solution, two rollers are horizontally rotatably arranged in front of the rewinding roller.

[0013] As a preferred technical solution, a fixed plate and a push plate are provided between the two rollers. The fixed plate is fixedly arranged and has a first opening groove for avoiding the inner support rod. A sliding seat is provided on the push plate. The sliding seat is slidably arranged along the axial direction of the roller. The push plate has a second opening groove for avoiding the inner support rod.

[0014] As a preferred technical solution, wheels are rotatably arranged at both ends of the sliding stroke of the slide, one of the wheels is driven by a servo motor, a transmission belt is connected between the two wheels, and the transmission belt is fixedly connected to the slide.

[0015] As a preferred technical solution, a pressure roller is horizontally arranged above the two rewinding rollers, and the end of the pressure roller is rotatably connected to a swing arm, one end of the swing arm is rotatably arranged, and the other end is driven by a cylinder to swing up and down.

[0016] As a preferred technical solution, a cutting and gluing mechanism is provided between the rewinding roller and the supporting roller.

[0017] The present invention adopts the above technical solution, and has the following advantages compared with the prior art:

[0018] Based on the property that toilet paper can bond and harden after being humidified and then dried, a water distribution pipe is added to the traditional rewinding device. Water or viscous glue is sprayed onto the toilet paper layer wound inside the toilet paper roll through the atomizing nozzle on the water distribution pipe. After drying, a bonded and hardened inner roll layer can be formed inside the toilet paper roll produced. The manufacturing cost of the inner roll layer is much lower than that of the paper tube, and it has good economy. At the same time, the inner roll layer can also play a supporting and convenient hanging role, and has a high promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a toilet paper roll in the present invention;

[0020] Figure 2 The present invention is a method for producing Figure 1 A schematic structural diagram of a toilet paper roll rewinding device is shown;

[0021] Figure 3 for Figure 2 A magnified view of part of the structure at center A;

[0022] Figure 4 for Figure 2 The effect diagram of the middle rewinding device;

[0023] Figure 5 for Figure 2 Axial view of the inner strut.

[0024] In the figure,

[0025] 11-inner winding layer; 12-outer winding layer; 21-machine body; 211-rewinding roller; 212-pressing roller; 2121-swing arm; 2122-cylinder; 213-water distribution pipe; 2131-atomizing nozzle; 2132-pneumatic sprayer; 214-blowing hole; 215-cutting and gluing mechanism; 216-supporting roller; 217-fixing plate; 2171-first opening groove; 218-push plate; 2181-second opening groove; 2182-sliding seat; 2191-servo motor; 2192-rotating wheel; 2193-transmission belt; 22-inner support rod; 221-protrusion; 222-inner recess; 223-blocking plate. DETAILED DESCRIPTION

[0026] The specific implementation methods of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0027] like Figure 1 As shown, a toilet paper roll comprises an integrated structure formed by winding a continuous toilet paper, wherein a small portion of the toilet paper layer wound inside is an inner roll layer 11, and the inner roll layer 11 is in a bonded and hardened state, which is formed by humidifying the toilet paper of the inner roll layer 11 and then air-drying, air-drying or baking. The liquid used for humidification can be water or a viscous glue liquid. Most of the toilet paper layer wound outside is an outer roll layer 12, and the outer roll layer 12 is in a soft state that can be used by people. The inner roll layer 11 is used to replace the traditional paper tube and plays a similar role to the traditional paper tube. Specifically, the inner roll layer 11 is a hollow structure, which is convenient for putting the toilet paper roll on an axle rod structure so that it can be flexibly rotated and convenient for users to extract. The inner roll layer 11 can provide support for the outer roll layer 12. The circumferential direction of the inner roll layer 11 is corrugated. This shape increases the interlayer contact area of ​​the toilet paper in the inner roll layer 11, which is beneficial to the bonding of the dried inner roll layer 11 to form an overall structure and prevent the inner roll layer 11 from loosening and softening.

[0028] like Figure 2-Figure 5As shown, a rewinding device for producing the toilet paper roll comprises a body 21 and an inner support rod 22, wherein the body 21 is provided with a rewinding station and a core-pulling station, two rewinding rollers 211 are horizontally arranged at the rewinding station, both of the two rewinding rollers 211 are rotatably connected to the body 21, and the two rewinding rollers 211 are driven to rotate by a motor. Since the motor belongs to a conventional power mechanism, it is not shown in the accompanying drawings, a pressure roller 212 is horizontally arranged above the two rewinding rollers 211, and the end of the pressure roller 212 is rotatably connected to a swing arm 2121, one end of the swing arm 2121 is rotatably connected to the body 21, and the top of the body 21 is rotatably connected to a cylinder 2122, and the telescopic rod of the cylinder 2122 is rotatably connected to the other end of the swing arm 2121 When the cylinder 2122 is extended, the swing arm 2121 is pushed to swing downward, so that the pressure roller 212 falls; when the cylinder 2122 is shortened, the swing arm 2121 is pulled to swing upward, so that the pressure roller 212 rises; a water distribution pipe 213 is also provided above the two rewinding rollers 211; a plurality of atomizing nozzles 2131 are evenly arranged on the water distribution pipe 213 along the axial direction of the rewinding roller 211; the plurality of atomizing nozzles 2131 are all directed toward between the two rewinding rollers 211; a water spraying power element is provided on the machine body 21; in the present embodiment, a pneumatic sprayer 2132 is selected as the water spraying power element; a water inlet of the pneumatic sprayer 2132 is connected to a water storage tank, an air inlet is connected to an external air source device, and a water outlet is connected to the water distribution pipe 213.

[0029] The inner support rod 22 is a slender rod body, and a plurality of protrusions 221 and inner recesses 222 are alternately provided in the circumferential direction thereof to form a corrugated outer circumferential surface. A baffle plate 223 is fixedly connected to one end of the inner support rod 22 .

[0030] During the rewinding operation, the toilet paper needs to be laid on the two rewinding rollers 211, and the inner support rod 22 is placed between the two rewinding rollers 211 to press the toilet paper. The machine body 21 in front of the rewinding roller 211 is provided with a blowing hole 214 facing upward and rearward, and the blowing hole 214 is connected to an external air source device. The air blown out by the blowing hole 214 is used to fold the end of the toilet paper back and cover the inner support rod 22, and then the cylinder 2122 is started to make the pressure roller 212 press the toilet paper above the inner support rod 22, and then the motor is started to make the two rewinding rollers 211 rotate in the same direction, driving the inner support rod 22 to rotate and wind the toilet paper, and the pneumatic sprayer 2132 is started at the same time as the motor is started, so that multiple atomizing nozzles 2131 spray water mist on the toilet paper wound on the inner support rod 22, so that it absorbs water and moistens and adheres to the outer peripheral surface of the inner support rod 22, forming a contact with the outer periphery of the inner support rod 22 The pneumatic sprayer 2132 stops working after the inner support rod 22 rotates a certain number of times, so that water mist is no longer sprayed on the subsequently wound toilet paper, so that only a small part of the inner toilet paper layer of the rewound toilet paper roll is humidified, and then naturally bonded and hardened after drying to form the inner roll layer 11. If it is necessary to enhance the bonding and hardening effect of the inner roll layer 11, a proper amount of viscous glue can be added to the sprayed water. Since most of the toilet paper layers on the outside of the toilet paper roll are not humidified, they remain soft to form an outer roll layer 12 for people to use. During the rewinding process, as the diameter of the toilet paper roll gradually increases, the pressure roller 212 gradually lifts up, and the cylinder 2122 acts as an air spring, so that the pressure roller 212 maintains a certain pressure on the toilet paper roll, and its function is to make the toilet paper roll tightly wound.

[0031] The core pulling station is located in front of the rewinding station. Two rollers 216 are horizontally arranged at the core pulling station. The two rollers 216 are rotatably connected to the machine body 21 respectively. A fixed plate 217 and a push plate 218 are arranged between the two rollers 216. The fixed plate 217 is fixedly connected to the machine body 21. A first opening groove 2171 for avoiding the inner support rod 22 is arranged on the fixed plate 217. A second opening groove 2181 for avoiding the inner support rod 22 is arranged on the push plate 218. A slide seat 2182 is fixedly connected to the bottom of the push plate 218. The slide seat 2182 is arranged along the roller 217. 16 is axially slidably connected to the body 21, and the two ends of the sliding stroke of the slide 2182 on the body 21 are rotatably connected with wheels 2192 respectively, a transmission belt 2193 is connected between the two wheels 2192, and the transmission belt 2193 is fixedly connected to the slide 2182. A servo motor 2191 is also provided on the body 21, and the servo motor 2191 is transmission-connected to a wheel 2192. The servo motor 2191 drives the wheel 2192 and the transmission belt 2193 to rotate, which can drive the slide 2182 and the push plate 218 to slide back and forth.

[0032] The rewound toilet paper roll is rolled onto the two rollers 216, so that the inner support rod 22 inside it is stuck in the first opening groove 2171 and the second opening groove 2181, and the baffle 223 on the inner support rod 22 is located on the side of the fixed plate 217 away from the push plate 218. A cutting and gluing mechanism 215 is provided between the rewinding station and the core pulling station. The cutting and gluing mechanism 215 is used to cut the toilet paper and apply glue to the end of the toilet paper in front of it. The cutting and gluing mechanism 215 is a prior art and its structure is not described here in detail. According to the working principle, the cut and glued toilet paper roll is rolled on two rollers 216 until the end of the toilet paper coated with glue is adhered to the toilet paper roll, and then the servo motor 2191 is started to make the push plate 218 push the toilet paper roll away from the fixed plate 217. The baffle plate 223 on the inner support rod 22 is blocked by the fixed plate 217, so that the inner support rod 22 cannot move with the toilet paper roll, thereby pulling the inner support rod 22 out of the toilet paper roll, and the inner roll layer 11 in the toilet paper roll forms a hollow structure.

[0033] In practical applications, two inner support rods 22 can be provided, and the two inner support rods 22 can be used alternately in the rewinding station and the core pulling station. When the core pulling operation is performed on the previous toilet paper roll, the next toilet paper roll can be rewound at the same time, thereby reducing waiting time and improving work efficiency.

[0034] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A toilet paper roll, characterized in that: The invention comprises an inner roll layer (11) and an outer roll layer (12), wherein the inner roll layer (11) is a rolled adhesive hardened toilet paper, and the outer roll layer (12) is a rolled soft toilet paper, and the toilet paper rolled around the inner roll layer (11) and the toilet paper rolled around the outer roll layer (12) form an integrated structure.

2. The toilet paper roll according to claim 1, characterized in that: The inner roll layer (11) is a hollow structure.

3. The toilet paper roll according to claim 1, characterized in that: The inner volume layer (11) is in a corrugated shape in the circumferential direction.

4. A rewinding device for producing a toilet paper roll as claimed in claim 1, comprising two horizontally rotatable rewinding rollers (211), characterized in that: A water distribution pipe (213) is provided above the two rewinding rollers (211); a plurality of atomizing nozzles (2131) are evenly provided on the water distribution pipe (213) along the axial direction of the rewinding rollers (211); the atomizing nozzles (2131) face between the two rewinding rollers (211); and a water spraying power element is connected to the water distribution pipe (213).

5. The rewinding device according to claim 4, characterized in that: Also included is an inner support rod (22) for rolling up toilet paper.

6. The rewinding device according to claim 5, characterized in that: The inner support rod (22) is provided with a plurality of protrusions (221) and inner recesses (222) alternately in the circumferential direction.

7. The rewinding device according to claim 5, characterized in that: One end of the inner support rod (22) is fixedly connected to a baffle plate (223).

8. The rewinding device according to claim 7, characterized in that: Two support rollers (216) are arranged in a horizontally rotatable manner in front of the rewinding roller (211).

9. The rewinding device according to claim 8, characterized in that: A fixed plate (217) and a push plate (218) are provided between the two rollers (216); the fixed plate (217) is fixedly arranged and is provided with a first opening groove (2171) for avoiding the inner support rod (22); the push plate (218) is provided with a slide seat (2182); the slide seat (2182) is slidably arranged along the axial direction of the roller (216); and the push plate (218) is provided with a second opening groove (2181) for avoiding the inner support rod (22).

10. The rewinding device according to claim 9, characterized in that: Rotating wheels (2192) are rotatably provided at both ends of the sliding travel of the slide seat (2182), one of the rotating wheels (2192) is driven by a servo motor (2191), a transmission belt (2193) is connected between the two rotating wheels (2192), and the transmission belt (2193) is fixedly connected to the slide seat (2182).

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