Fragrant printed tissue manufacturing equipment and process

Abstract

The invention provides fragrant printed paper towel manufacturing equipment and process, and relates to the technical field of paper towel manufacturing, the fragrant printed paper towel manufacturing equipment comprises a printing device and a fragrant dyeing device, the fragrant dyeing device comprises a first mounting frame and two groups of first conveying devices arranged on the inner side of the first mounting frame, and the first conveying devices are symmetrically arranged; the first conveying devices are belt type conveying devices, a conveying channel for paper towels to penetrate through is formed between the two first conveying devices, each first conveying device comprises a belt wheel and a conveying belt arranged on the outer side of the belt wheel in a sleeving mode, a coating roller is arranged on the outer side of the conveying belt, and the surface of the conveying belt is coated with liquid perfume through the coating roller. According to the device, the contact time of the liquid perfume and the tissue is prolonged, the size of the device is reduced, rapid generation and manufacturing of the tissue are completed, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tissue manufacturing, and particularly to an apparatus and process for manufacturing scented printed tissues. Background Art

[0002] The manufacturing of tissues requires processing steps such as embossing, scenting, cutting, and packaging. Among them, according to the different models of the produced tissues, the embossing process and the scenting process are both different.

[0003] Some production equipment sprays liquid fragrance on the surface of the tissue by spraying. This process has advantages such as low equipment cost and simple operation process. However, limited by the spraying method, a sealing cover needs to be installed outside the spraying equipment to avoid fragrance overflow. Pressing the liquid fragrance on the surface of the tissue by a pressing roller can solve the technical problems existing in spray scenting. However, with the acceleration of the production line speed, the contact time between the pressing roller and the tissue is further shortened, and the shortened contact time of the liquid fragrance affects the scenting effect of the tissue and the quality of the scented printed tissue. Summary of the Invention

[0004] In view of the above problems, the present invention provides an apparatus and process for manufacturing scented printed tissues, which increases the contact time between the liquid fragrance and the tissue, simplifies the volume of the equipment, completes the rapid production and manufacturing of tissues, and improves the production efficiency.

[0005] To solve the above problems, the technical solution adopted by the present invention is: An apparatus for manufacturing scented printed tissues includes a printing device and a scenting device. The scenting device includes a first mounting frame and a first conveying device disposed inside the first mounting frame. The first conveying device is symmetrically arranged in two groups. The first conveying device is a belt conveying device. A conveying channel for the tissue to pass through is formed between the two groups of the first conveying devices. The first conveying device includes a pulley and a conveyor belt sleeved outside the pulley. A coating roller is disposed outside the conveyor belt, and the liquid fragrance is coated on the surface of the conveyor belt through the coating roller. A heating roller is disposed inside the conveyor belt, and the heating roller abuts against the inner wall of the conveyor belt to accelerate the drying of the liquid fragrance.

[0006] Preferably, a cleaning device, a drying device, and a cooling device are further disposed on the moving path of the conveyor belt. Residual substances on the surface of the conveyor belt are removed through the cleaning device and the drying device, and the surface temperature of the conveyor belt is controlled to be reduced below a set threshold through the cooling device.

[0007] Preferably, the cleaning device includes a first cleaning roller and a second cleaning roller arranged at intervals, and a cleaning solution with good volatility is adsorbed on the surface of the first cleaning roller.

[0008] Preferably, the drying device includes a drying box, which is provided with a drying opening at the lower end and abuts against the surface of the conveyor belt. An air inlet pipe is connected to the first side of the drying box, and an air outlet pipe is connected to the second side.

[0009] Preferably, the first conveying device further includes side baffles arranged outside the conveyor belt. An air inlet is provided on the side of the side baffle close to the cooling device. A partition baffle is arranged between the cooling device and the heating roller. A through strip-shaped opening is formed in the side wall of the partition baffle. The first end of the air inlet pipe is connected to the drying box, and the second end of the air inlet pipe is located on the side of the heating roller away from the cooling device.

[0010] Preferably, the cooling device includes a cooling roller. A hollow cooling channel is formed inside the cooling roller for the cooling medium to flow through. The cooling roller is located on the side close to the coating roller. The cooling channel is connected to a control valve. A first control component and a second control component are arranged outside the control valve, and the opening degree of the control valve is jointly adjusted by the first control component and the second control component.

[0011] Preferably, the cooling device further includes a detection roller. A detection channel for accommodating a low-boiling liquid is formed inside the detection roller. The detection channel is connected to the first control component for adjusting the opening degree of the control valve.

[0012] Preferably, a rotation speed detection component is installed outside the cooling roller, and the rotation speed detection component is electrically connected to the second control component for adjusting the opening degree of the control valve.

[0013] Preferably, the printing device includes a second mounting frame, and two groups of embossing rollers are arranged on the inner wall of the second mounting frame. The two groups of embossing rollers are opposite to the two groups of the first conveying devices.

[0014] A manufacturing process of scented printed paper towels uses the above-mentioned scented printed paper towel manufacturing equipment, and includes the following steps: S1. Start the manufacturing equipment and control the paper towels to pass through the printing device and the fragrance dyeing device in sequence to complete printing and fragrance dyeing; S2. The coating roller continuously rotates to coat the liquid fragrance on the surface of the conveyor belt, and the conveyor belt abuts against the paper towels to realize the fragrance dyeing of the paper towels; S3. Control the heating roller to rotate synchronously, and heat the fragrance-dyed paper towels through the heating roller to accelerate the drying of the paper towels.

[0015] The beneficial effects of the present invention are as follows: Compared with the prior art, through the above structural design, the fragrance dyeing and drying of the paper towels can be completed synchronously within a very short distance, the contact time between the liquid fragrance and the paper towels is increased, the volume of the equipment is streamlined, the rapid generation and manufacturing of the paper towels are completed, and the production efficiency is improved. Description of the Drawings

[0016] Figure 1Schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 For the present invention Figure 1 Schematic diagram of the front view structure.

[0018] Figure 3 For the present invention Figure 1 Schematic diagram of the top view structure.

[0019] Figure 4 For the present invention Figure 1 Schematic diagram of the side view structure.

[0020] Figure 5 For the present invention Figure 2 Schematic diagram of the sectional view taken along the line A-A of the present invention.

[0021] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at position B of the present invention.

[0022] Figure 7 For the present invention Figure 5 Schematic diagram of the enlarged structure at position C of the present invention.

[0023] Figure 8 Schematic diagram of the three-dimensional structure of the control valve, the first control assembly and the second control assembly of the present invention.

[0024] In the figure: 100, printing device; 110, second mounting bracket; 120, embossing roller; 200, fragrance dyeing device; 210, first mounting bracket; 220, first conveying device; 2201, conveying channel; 221, pulley; 222, conveyor belt; 223, side baffle; 2231, air inlet; 2232, partition baffle; 230, coating roller; 240, cooling roller; 241, cooling channel; 250, heating roller; 260, first cleaning roller; 270, second cleaning roller; 300, drying device; 310, drying box; 320, air outlet pipe; 330, air inlet pipe; 400, control valve; 410, conduction joint; 500, first control assembly; 510, first interface; 600, second control assembly; 610, second interface. Detailed implementation manners

[0025] The present invention will be further described below with reference to the drawings and embodiments.

[0026] In order to solve the problems mentioned in the background art, refer to the attached Figure 1 - attached Figure 8, A fragrance printing tissue manufacturing device, including a printing device 100 and a fragrance dyeing device 200. The fragrance dyeing device 200 includes a first mounting frame 210 and a first conveying device 220 arranged inside the first mounting frame 210. Patterns are formed on the surface of the tissue by the printing device 100, and the tissue can be conveyed by the first conveying device 220. While conveying, liquid fragrance is coated on the surface of the tissue to achieve fragrance dyeing.

[0027] Specifically, the first conveying device 220 is symmetrically arranged in two groups. The first conveying device 220 is a belt conveying device. A conveying channel 2201 for the tissue to pass through is formed between the two groups of the first conveying devices 220. By setting the first conveying device 220 as a belt conveying device, the length of the conveying channel 2201 can be extended, the contact time between the first conveying device 220 and the tissue can be extended, the liquid fragrance and the tissue can be fully contacted, the amount of liquid fragrance penetration can be increased, the fragrance dyeing effect of the tissue can be improved, and the quality of the finished tissue can be improved.

[0028] The first conveying device 220 includes belt pulleys 221 and a conveyor belt 222 sleeved outside the belt pulleys 221. A coating roller 230 is arranged on the outside of the conveyor belt 222. The liquid fragrance can be continuously coated on the surface of the conveyor belt 222 through the coating roller 230. After coating, the conveyor belt 222 contacts the tissue to achieve the transfer of the liquid fragrance; a heating roller 250 is arranged inside the conveyor belt 222. The heating roller 250 abuts against the inner wall of the conveyor belt 222 to accelerate the drying of the liquid fragrance. By setting the heating roller 250, local heating can be carried out after the liquid fragrance is coated, the volatilization of the liquid components in the liquid fragrance can be accelerated, and the rapid drying of the tissue can be achieved.

[0029] A container for accommodating the liquid fragrance can be installed at the upper end of the coating roller 230. The liquid fragrance is brushed on the surface of the coating roller 230 through a brushing device at the lower end of the container. During the continuous rotation of the coating roller 230, the liquid fragrance in the container can be coated on the surface of the conveyor belt 222.

[0030] Furthermore, a cleaning device, a drying device 300 and a cooling device are also arranged on the moving path of the conveyor belt 222. The residual substances on the surface of the conveyor belt 222 are removed through the cleaning device and the drying device 300 to ensure that the surface of the conveyor belt 222 can be continuously cleaned, and one cleaning can be completed within one rotation cycle, avoiding the accumulation of impurities on the surface and affecting the coating of the liquid fragrance; the surface temperature of the conveyor belt 222 is controlled to be reduced below the set threshold through the cooling device. By setting the cooling device, the heated conveyor belt 222 can be cooled down, avoiding the premature volatilization of the liquid fragrance due to too high surface temperature of the conveyor belt 222 and affecting the subsequent fragrance dyeing effect.

[0031] By setting up a cooling device, the running length of the conveyor belt 222 can be greatly shortened. It can actively cool down, accelerate the rapid cooling of the conveyor belt 222, and improve the overall working efficiency.

[0032] Through the drying device 300, the residual cleaning water stains on the surface of the conveyor belt 222 can be removed, ensuring the stability of subsequent fragrance dyeing.

[0033] Through the above structural design, the fragrance dyeing and drying of the paper towel can be completed synchronously within a very short distance, reducing the volume of the equipment, completing the rapid production and manufacturing of the paper towel, and improving the production efficiency.

[0034] Specifically, the cleaning device includes a first cleaning roller 260 and a second cleaning roller 270 arranged at intervals. The surface of the first cleaning roller 260 adsorbs a cleaning solution with good volatility. The above cleaning solution is selected as a non-irritating and safe solution, which is specifically selected according to production needs. During the cleaning process, the substances remaining on the surface of the conveyor belt 222 are first cleaned once by the continuous rotation of the first cleaning roller 260, and then passed through the second cleaning roller 270 to perform a second cleaning on the surface of the conveyor belt 222, which can absorb most of the liquid cleanly, ensuring the stability of the subsequent fragrance dyeing agent on the conveyor belt 222.

[0035] Specifically, the drying device 300 includes a drying box 310. The lower end of the drying box 310 is provided with a drying opening and abuts against the surface of the conveyor belt 222. The first side of the drying box 310 is connected to an air inlet pipe 330, and the second side is connected to an air outlet pipe 320. Drying gas with a certain temperature can enter the drying box 310 from the air inlet pipe 330, and after drying the surface of the conveyor belt 222, it is discharged from the air outlet pipe 320, and the residual liquid on the surface of the conveyor belt 222 is carried away during the flow process to achieve drying.

[0036] It should be noted that the abutting state between the drying box 310 and the conveyor belt 222 changes according to the shape of the surface of the conveyor belt 222. There is a slight gap between the drying box 310 and the conveyor belt 222 to avoid the drying box 310 rubbing against the conveyor belt 222 and affecting the normal transmission of the conveyor belt 222. The surface of the conveyor belt 222 can be provided with uneven printing protrusions to complete printing and fragrance dyeing while conveying the paper towel. Moreover, the uneven surface of the conveyor belt 222 can effectively accommodate the liquid fragrance, further enhancing the effect of fragrance dyeing.

[0037] The first conveying device 220 here further includes side baffles 223 arranged outside the conveyor belt 222. Through the side baffles 223, a sealing barrier can be formed on both sides of the conveyor belt 222 to separate the inner and outer sides of the conveyor belt 222. An air inlet 2231 is provided on the side of the side baffle 223 close to the cooling device. A partition baffle 2232 is arranged between the cooling device and the heating roller 250. Through the partition baffle 2232, the cooling roller 240 and the heating roller 250 can be separated, reducing the influence caused by heat transfer between the two; a through strip-shaped opening is formed on the side wall of the partition baffle 2232. The first end of the air inlet pipe 330 is communicated with the drying box 310, and the second end of the air inlet pipe 330 is located on the side of the heating roller 250 away from the cooling device.

[0038] Through the above structural design, a directional air flow can be formed inside the conveyor belt 222. The air flow can flow in from the air inlet 2231, pass through the cooling roller 240 and the strip-shaped opening of the partition baffle 2232 to enter the side of the heating roller 250, and finally the gas is extracted from the side of the air inlet pipe 330 and enters the first side of the drying box 310 to complete the drying of the surface of the conveyor belt 222.

[0039] Through the above structural design, a directional air flow can be formed inside the conveyor belt 222. While avoiding the influence caused by the continuous increase in the temperature around the heating roller 250, the heating roller 250 can also be used to heat the gas, and the heat of this part can be fully utilized and introduced into the drying box 310 to dry the outer surface of the conveyor belt 222, ensuring the normal operation of the equipment while improving the efficiency of resource utilization.

[0040] For the above heating roller 250, the inside can be heated by circulating a heating medium, or the surface can be heated by installing resistance heating wires.

[0041] Specifically, the cooling device includes a cooling roller 240. A hollow cooling channel is formed in the inner wall of the cooling roller 240 for the cooling medium to flow through. The cooling medium continuously passes through to take away the heat on the surface of the conveyor belt 222; both the inner wall of the conveyor belt 222 and the surface of the cooling roller 240 are made of metal materials, which can accelerate the dissipation of heat; the cooling roller 240 is located on the side close to the coating roller 230. The cooling channel 241 is communicated with a control valve 400. A first control component 500 and a second control component 600 are arranged outside the control valve 400. By jointly adjusting the opening degree of the control valve 400 by the first control component 500 and the second control component 600, the flow rate of the cooling medium in the cooling channel can be changed by jointly controlling the opening degree of the control valve 400, and it can be adaptively adjusted according to the rotation speed and surface heat of the conveyor belt 222.

[0042] The cooling device here further includes a detection roller. A detection channel for accommodating a low-boiling liquid is formed on the inner wall of the detection roller. The detection channel is communicated with the first control assembly 500 for adjusting the opening degree of the control valve 400. The first control assembly 500 can be selected as a hydraulic telescopic structure. The detection roller abuts against the inner wall of the conveyor belt 222. After the surface temperature of the conveyor belt 222 rises, the low-boiling liquid in the detection roller is heated to become gaseous, and its internal volume increases, which can push the hydraulic telescopic structure to extend. There are two parallel valve cores arranged inside the control valve 400, and the hydraulic telescopic structure can control the movement of the first valve core to control the opening degree inside the control valve 400.

[0043] After the surface temperature of the conveyor belt 222 rises, the first valve core moves in the first direction, increasing the opening degree inside the control valve 400 and increasing the flow rate of the cooling medium per unit time; on the contrary, after the surface temperature of the conveyor belt 222 drops, the first valve core moves in the second direction, reducing the opening degree inside the control valve 400 and reducing the flow rate of the cooling medium, reducing the loss of resources.

[0044] A rotation speed detection assembly is installed outside the cooling roller 240. The rotation speed detection assembly is electrically connected to the second control assembly 600 for adjusting the opening degree of the control valve 400. The second control assembly 600 here can also be set as a telescopic structure and can be selected as an electric control telescopic structure; by detecting the rotation speed of the cooling roller 240 through the rotation speed detection assembly to adjust the telescopic state of the second control assembly 600, and finally adjusting the opening degree of the second valve core to achieve the adjustment of the flow rate per unit time.

[0045] The above rotation speed detection assembly can be selected as an existing electromagnetic induction detection device or an optoelectronic rotation speed detection device. The above is prior art and will not be elaborated here.

[0046] The printing device 100 includes a second mounting frame 110. Two groups of embossing rollers 120 are arranged on the inner wall of the second mounting frame 110. The two groups of embossing rollers 120 are opposite to the two groups of first conveying devices 220. During the rotation process, the two groups of embossing rollers 120 can extrude and print the paper towels located in the middle. The embossing rollers 120 are opposite to the first conveying device 220 to achieve continuous printing and fragrance dyeing of the paper towels.

[0047] The following will be elaborated in combination with the manufacturing process.

[0048] A manufacturing process for scented printed paper towels uses the above-mentioned manufacturing equipment for scented printed paper towels and includes the following steps: S1. Start the manufacturing equipment and control the paper towels to pass through the printing device 100 and the fragrance dyeing device 200 in sequence to complete printing and fragrance dyeing. Under the action of mechanical pressure, an imprint is formed on the surface of the paper towels to achieve the printing operation. The liquid fragrance is coated on the surface of the paper towels through the fragrance dyeing device 200, and the paper towels are fragranced under the action of liquid diffusion.

[0049] S2. The coating roller 230 rotates continuously to coat the liquid fragrance on the surface of the conveyor belt 222. The conveyor belt 222 abuts against the paper towel to achieve fragrance dyeing of the paper towel. During the process of the surface of the conveyor belt 222 contacting the coating roller 230, the coating roller 230 continuously coats the existing dye on its surface on the surface of the conveyor belt 222. Then the conveyor belt 222 and the opposite conveyor belt 222 complete the extrusion of the paper towel. Under the action of pressure, the liquid fragrance can be extruded into the interior of the paper towel. Here, the length of the conveying channel 2201 becomes longer, which can extend the diffusion time and enhance the effect of liquid fragrance coating.

[0050] S3. Control the heating roller 250 to rotate synchronously, and heat the fragrance-dyed paper towel through the heating roller 250 to accelerate the drying of the paper towel. Through the heating roller 250, the conveyor belt 222 and the outer paper towel can be heated and dried locally, and the production and manufacturing of the paper towel can be achieved within a short distance, improving the effect of paper towel production and the effect of fragrance dyeing.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A scented printed tissue manufacturing device, comprising a printing device (100) and a scent dyeing device (200), wherein the scent dyeing device (200) comprises a first mounting frame (210) and a first conveying device (220) arranged inside the first mounting frame (210), characterized in that: The first conveying devices (220) are symmetrically arranged in two groups. The first conveying devices (220) are belt conveying devices. A conveying channel (2201) for paper towels to pass through is formed between the two groups of the first conveying devices (220). The first conveying devices (220) include a pulley (221) and a conveying belt (222) sleeved on the outside of the pulley (221). A coating roller (230) is arranged on the outside of the conveying belt (222). Liquid fragrance is coated on the surface of the conveying belt (222) by the coating roller (230). A heating roller (250) is arranged on the inside of the conveying belt (222). The heating roller (250) is pressed against the inner wall of the conveying belt (222) to accelerate the drying of the liquid fragrance.

2. The scented printed tissue manufacturing equipment according to claim 1, characterized in that: A cleaning device, a drying device (300) and a cooling device are also provided on the moving path of the conveyor belt (222); residual substances on the surface of the conveyor belt (222) are removed by the cleaning device and the drying device (300); and the surface temperature of the conveyor belt (222) is controlled to be lowered to below a set threshold by the cooling device.

3. The scented printed tissue manufacturing equipment according to claim 2, characterized in that: The cleaning device comprises a first cleaning roller (260) and a second cleaning roller (270) which are arranged at intervals, and a cleaning solution with high volatility is adsorbed on the surface of the first cleaning roller (260).

4. The scented printed tissue manufacturing equipment according to claim 2, characterized in that: The drying device (300) comprises a drying box (310), the lower end of the drying box (310) being provided with a drying opening which abuts against the surface of the conveyor belt (222), the first side of the drying box (310) being connected to an air inlet duct (330), and the second side being connected to an air outlet duct (320).

5. The scented printed tissue manufacturing equipment according to claim 4, characterized in that: The first conveying device (220) further comprises a side baffle (223) arranged on the outside of the conveying belt (222); an air inlet (2231) is arranged on a side of the side baffle (223) close to the cooling device; a partition baffle (2232) is arranged between the cooling device and the heating roller (250); a through strip opening is formed on a side wall of the partition baffle (2232); a first end of the air inlet duct (330) is connected to the drying box (310); and a second end of the air inlet duct (330) is located on a side of the heating roller (250) away from the cooling device.

6. The scented printed tissue manufacturing equipment according to claim 2, characterized in that: The cooling device comprises a cooling roller (240), the inner wall of which is formed with a hollow cooling channel (241) for cooling medium to flow through, the cooling roller (240) being located on a side close to the coating roller (230), the cooling channel (241) being connected to a control valve (400), a first control component (500) and a second control component (600) being arranged on the outside of the control valve (400), and the opening of the control valve (400) being cooperatively adjusted by the first control component (500) and the second control component (600).

7. The scented printed tissue manufacturing equipment according to claim 6, characterized in that: The cooling device further comprises a detection roller, the inner wall of which is formed with a detection channel for accommodating low-boiling-point liquid, and the detection channel is connected to the first control component (500) for adjusting the opening size of the control valve (400).

8. The scented printed tissue manufacturing equipment according to claim 6, characterized in that: A rotation speed detection component is installed on the outside of the cooling roller (240), and the rotation speed detection component is electrically connected to the second control component (600) for adjusting the opening size of the control valve (400).

9. The scented printed tissue manufacturing equipment according to claim 1, characterized in that: The printing device (100) comprises a second mounting frame (110), and two groups of embossing rollers (120) are arranged on the inner wall of the second mounting frame (110), and the two groups of embossing rollers (120) are opposite to the two groups of the first conveying devices (220).

10. A process for manufacturing scented printed tissue paper, characterized in that: The scented printed tissue manufacturing device according to any one of claims 1 to 9 comprises the following steps: S1, starting the manufacturing equipment and controlling the paper towel to pass through the printing device (100) and the fragrance dyeing device (200) in sequence to complete the printing and fragrance dyeing; S2, the coating roller (230) continuously rotates to coat the liquid fragrance on the surface of the conveyor belt (222), and the conveyor belt (222) and the paper towel are in contact with each other to achieve fragrance dyeing of the paper towel; S3, controlling the heating roller (250) to rotate synchronously, heating the scented paper towel through the heating roller (250), and accelerating the drying of the paper towel.

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