High-efficiency sterilization device for packing material

Abstract

The utility model provides an efficient sterilization device for a packing material, which aims at overcoming the defects of poor sterilization effect, higher cost and the like caused by independently adopting soaking type sterilization and spraying type sterilization on the packing material in the prior art, belongs to the technical field of packing material sterilization equipment, and comprises a sterile bin, a soaking bin, a spraying assembly and a guide wheel assembly, an inner cavity of the soaking bin is divided into an upper spraying area and a lower soaking area, and sterilization liquid is stored in the soaking area; the spraying assembly is arranged in the spraying area of the soaking bin, and the guide wheel assembly is used for conveying and guiding the packing materials. The sterilization device sterilizes the packing material by combining spraying sterilization and soaking sterilization, has a better sterilization effect, and is beneficial to reducing the height of the whole device and saving the use amount of a consumable material, namely sterilization liquid, so that the cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging material sterilization equipment, and particularly relates to a high-efficiency packaging material sterilization device. Background Art

[0002] Packaging materials refer to the materials used for manufacturing packaging containers, packaging decoration, packaging printing, packaging transportation, etc., to meet the requirements of product packaging.

[0003] For packaging material sterilization, methods such as sterilization liquid sterilization or light irradiation sterilization can be used. Among them, for sterilization with sterilization liquid, it can be divided into two methods: soaking and spraying. To ensure the sterilization effect, the soaking tank used for soaking sterilization generally needs to be of a relatively high height to store a large amount of sterilization liquid for soaking the packaging materials, resulting in relatively serious consumption of consumables and high sterilization costs. Moreover, when there are bacteria colonies on the surface of the packaging materials, it is difficult for the sterilization liquid to completely penetrate through the bacteria colonies to sterilize the packaging materials, resulting in a decline in the sterilization effect. For sterilization by spraying, it is difficult to make the sterilization liquid and the packaging materials fully contact, and the sterilization effect is poor. Summary of the Invention

[0004] Aiming at the drawbacks of poor sterilization effect and high cost caused by using soaking sterilization and spraying sterilization alone for packaging materials in the prior art, the utility model provides a high-efficiency packaging material sterilization device. This sterilization device sterilizes the packaging materials by combining spraying sterilization and soaking sterilization, has a better sterilization effect, is beneficial to reducing the height of the whole device, saving the usage amount of the consumable of sterilization liquid, and thus reducing the cost.

[0005] The invention object of the utility model is realized through the following technical solutions: A high-efficiency packaging material sterilization device, comprising:

[0006] A sterile chamber, which is provided with an inlet and an outlet;

[0007] A soaking tank, which is arranged below the sterile chamber and is used for sterilizing the packaging materials. The inner cavity of the soaking tank is divided into upper and lower parts: a spraying area and a soaking area. The soaking area stores sterilization liquid;

[0008] A spraying assembly, which is arranged in the spraying area of the soaking tank and is used for spraying sterilization liquid towards the packaging materials;

[0009] A guide wheel assembly, which conveys and guides the packaging materials, so that the packaging materials enter the sterile chamber from the inlet, then enter the soaking tank and repeatedly pass through the spraying area and the soaking area, and finally are output from the outlet;

[0010] A liquid level adjusting device, which is connected with the soaking tank and is used for adjusting the liquid level height of the sterilization liquid in the soaking area.

[0011] Preferably, a partition is provided between the sterile chamber and the soaking chamber to separate them, and two through slots for the packaging material to enter and exit the soaking chamber are provided on the partition; a sealing gasket is fixedly provided in each of the inlet and the outlet, and the packaging material passes through the corresponding sealing gasket when passing through the inlet and the outlet.

[0012] Preferably, the bottom of the soaking chamber has a structure with a gradually decreasing width from top to bottom; the guiding wheel assembly includes a first guiding wheel, a power roller group, a second guiding wheel, a third guiding wheel and a fourth guiding wheel. The first guiding wheel and the power roller group are located in the sterile chamber, the third guiding wheel is located in the spraying area in the soaking chamber and above the spraying assembly, the second guiding wheel and the fourth guiding wheel are located in the soaking area, and the second guiding wheel is located near the bottom in the soaking chamber, and the fourth guiding wheel is located above the second guiding wheel; the first guiding wheel and the third guiding wheel are respectively located on both sides of the connecting line between the power roller group and the fourth guiding wheel; the diameters of the second guiding wheel, the third guiding wheel and the fourth guiding wheel decrease in sequence, and the packaging material passes through the first guiding wheel, the second guiding wheel, the third guiding wheel, the fourth guiding wheel and the power roller group in sequence.

[0013] Preferably, the spraying assembly includes a water inlet pipe, and a number of spraying units are provided on the water inlet pipe. Each spraying unit includes two parallel spraying pipes, and a plurality of nozzles are provided on the spraying pipes, and the nozzles on the two spraying pipes are arranged oppositely.

[0014] Preferably, the spraying direction of the nozzle is inclined upward.

[0015] Preferably, the cross-sectional area of the inner cavity of the spraying pipe gradually decreases from the end close to the water inlet pipe to the other end.

[0016] Preferably, a switch for controlling the opening and closing of the spraying pipe is provided on the spraying pipe. Both the water inlet pipe and the switch are located outside the soaking chamber, and the part of the spraying pipe with nozzles is located inside the spraying pipe.

[0017] Preferably, the sterilizing liquid is hydrogen peroxide.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The utility model combines soaking and spraying for sterilization. The spraying method of the sterilizing liquid can wash the bacteria and other microorganisms on the surface of the packaging material, and the soaking method can make the packaging material fully contact with the sterilizing liquid. Moreover, the repeated spraying and soaking methods can greatly improve the sterilization effect on the packaging material.

[0020] 2. Due to the setting of the spraying device, the packaging material can achieve full contact with the sterilizing liquid without staying in the soaking area for a long time. Therefore, the depth of the soaking area can be set shallower, which is beneficial to reducing the height of the soaking chamber and thus saving the sterilizing liquid;

[0021] 3. The setting of the guide wheel assembly enables the packaging material to pass through the spraying area and the soaking area longitudinally repeatedly, which is beneficial to shortening the transverse length of the soaking bin, thus further reducing the volume of the soaking bin, saving the sterilizing liquid and reducing costs.

[0022] 4. When the packaging material passes through the spraying device for the second and third times, the relative spraying direction of the spraying unit to the packaging material changes, which can achieve a better flushing effect and is beneficial to flushing the bacteria on the surface of the packaging material. Brief Description of the Drawings

[0023] Figure 1 is a perspective view of the present utility model.

[0024] Figure 2 is a schematic diagram of the internal structure of the present utility model.

[0025] Figure 3 is Figure 2 an enlarged view of part A in

[0026] Figure 4 is a perspective view of the spraying assembly.

[0027] Figure 5 is a front view of the spraying assembly.

[0028] Figure 6 is a schematic diagram of the internal structure of the spraying pipe.

[0029] Reference numerals in the drawings: 1. Sterile bin, 101. Sealing gasket, 102. Inlet, 103. Outlet, 2. Soaking bin, 201. Spraying area, 202. Soaking area, 203. Partition board, 204. Through groove, 3. Spraying assembly, 301. Water inlet pipe, 302. Spraying unit, 303. Spraying pipe, 304. Nozzle, 305. Switch, 4. Guide wheel assembly, 401. First guide wheel, 402. Power roller group, 403. Second guide wheel, 404. Third guide wheel, 405. Fourth guide wheel, 5. Liquid level adjusting device, 501. Return pipe, 502. Water storage bin, 503. Adjusting bin, 504. Connecting piece, 505. Power device, 506. First water outlet, 507. Drainage port, 508. Second water outlet, 509. Third water outlet, 6. Packaging material. Detailed Description of the Embodiment

[0030] The present utility model will be further described below with reference to the embodiments shown in the drawings: Embodiment

[0031] As Figures 1-6 shown, a high-efficiency sterilization device for packaging materials includes:

[0032] Sterile chamber 1 is provided with an inlet 102 and an outlet 103. A sealing gasket 101 is fixedly provided in each of the inlet 102 and the outlet 103. The sealing gasket 101 is of an annular structure, and the hollow part of the sealing gasket 101 is of a flat structure for the packaging material 6 to pass through. When the packaging material 6 passes through the inlet 102 and the outlet 103, it passes through the corresponding sealing gasket 101 respectively.

[0033] Soaking chamber 2 is arranged below the sterile chamber 1 and is used for sterilizing the packaging material 6. The inner cavity of the soaking chamber 2 is divided into two upper and lower parts, namely a spraying area 201 and a soaking area 202. The soaking area 202 stores a sterilizing liquid, and the sterilizing liquid is hydrogen peroxide or peracetic acid. The bottom of the soaking chamber 2 is of a structure with a gradually decreasing width from top to bottom; the sterile chamber 1 and the soaking chamber 2 are separated by a partition plate 203, and two through grooves 204 for the packaging material 6 to enter and exit the soaking chamber 2 are provided on the partition plate 203. The steam generated by the sterilizing liquid in the soaking chamber 2 can enter the sterile chamber 1 through the through grooves 204 to keep the inside of the sterile chamber 1 in a sterile state.

[0034] Spraying assembly 3 is arranged in the spraying area 201 of the soaking chamber 2 and is used for spraying the sterilizing liquid towards the packaging material 6; the spraying assembly 3 includes a water inlet pipe 301, and three spraying units 302 are provided on the water inlet pipe 301. The spraying unit 302 includes two mutually parallel spraying pipes 303. A plurality of nozzles 304 are arranged on the spraying pipes 303 along the length direction of the spraying pipes 303. The nozzles 304 on the two spraying pipes 303 are arranged oppositely, and the spraying direction of the nozzles 304 is inclined upwards. A switch 305 for controlling the opening and closing of the spraying pipe 303 is provided on the spraying pipe 303. Both the water inlet pipe 301 and the switch 305 are located outside the soaking chamber 2, and the part of the spraying pipe 303 with nozzles 304 is located inside the spraying pipe 303; the end of the water inlet pipe 301 can be connected to structures such as a water pump (not shown in the drawings) for conveying the sterilizing liquid into the water inlet pipe 301, so that the spraying assembly 3 can achieve the spraying function. In order to prevent the difference in the pressure at different positions in the spraying pipe 303 from causing too large a difference in the hydrogen peroxide flow rate sprayed by each nozzle 304, the inner cavity of the spraying pipe 303 is designed to be conical. The smaller the water flow rate in the inner cavity of the spraying pipe 303 is, the farther away from the water inlet pipe 301, and the smaller the diameter of the inner cavity of the spraying pipe 303 is at the place farther away from the water inlet pipe 301, that is, the cross-sectional area of the inner cavity of the spraying pipe 303 gradually decreases from one end close to the water inlet pipe 301 to the other end, so that the nozzles 304 far away from the water inlet pipe 301 can also ensure the spraying amount.

[0035] The guide wheel assembly 4 guides the conveyance of the packaging material 6, enabling the packaging material 6 to enter the sterile chamber 1 from the inlet 102, then enter the soaking chamber 2 and repeatedly pass through the spraying area 201 and the soaking area 202, and finally be output from the outlet 103; the guide wheel assembly 4 includes a first guide wheel 401, a power roller group 402, a second guide wheel 403, a third guide wheel 404, and a fourth guide wheel 405. The first guide wheel 401 and the power roller group 402 are located inside the sterile chamber 1. The third guide wheel 404 is located inside the spraying area 201 of the soaking chamber 2 and above the spraying assembly 3. The second guide wheel 403 and the fourth guide wheel 405 are located inside the soaking area 202, and the second guide wheel 403 is located near the bottom inside the soaking chamber 2, and the fourth guide wheel 405 is located above the second guide wheel 403. The first guide wheel 401 and the third guide wheel 404 are respectively located on both sides of the connection line between the power roller group 402 and the fourth guide wheel 405. The diameters of the second guide wheel 403, the third guide wheel 404, and the fourth guide wheel 405 decrease in sequence. The packaging material 6 sequentially passes through the first guide wheel 401, the second guide wheel 403, the third guide wheel 404, the fourth guide wheel 405, and the power roller group 402. In the present utility model, the power roller group 402 is used to provide power for the conveyance of the packaging material 6.

[0036] The liquid level adjusting device 5 is connected to the soaking chamber 2 and is used to adjust the liquid level height of the sterilizing liquid in the soaking area 202. The liquid level adjusting device 5 includes a water storage chamber 502. A reflux pipe 501 extending into the water storage chamber 502 is fixedly connected to the bottom of the soaking chamber 2. An adjusting chamber 503 that can only slide longitudinally is provided in the water storage chamber 502. The reflux pipe 501 extends into the bottom of the adjusting chamber 503 and the adjusting chamber 503 is slidably connected relative to the reflux pipe 501. A connecting member 504 is fixedly provided at the upper end of the adjusting chamber 503. A power device 505 for driving the connecting member 504 to lift and lower is fixedly provided on the water storage chamber 502. In this embodiment, the connecting member 504 is a lead screw, and the power device 505 includes a motor (not shown in the drawings) fixed on the water storage chamber 502. A nut meshing with the lead screw is fixedly provided on the rotating shaft of the motor (not shown in the drawings). In actual use, the power device 505 can also adopt a driving structure such as a cylinder. A first water outlet 506 for communicating the inner cavity of the adjusting chamber 503 and the inner cavity of the water storage chamber 502 is provided at a position near the upper end of the adjusting chamber 503. A drain port 507 is provided at the bottom of the water storage chamber 502. A second water outlet 508 for communicating the inner cavity of the reflux pipe 501 and the inner cavity of the water storage chamber 502 is provided at the lowest point of the reflux pipe 501 located in the water storage chamber 502. A third water outlet 509 for communicating the inner cavity of the adjusting chamber 503 and the inner cavity of the water storage chamber 502 is provided at the bottom of the adjusting chamber 503. The sum of the cross-sectional areas of the second water outlet 508 and the third water outlet 509 is smaller than the cross-sectional area of the reflux pipe 501. The spraying amount of the spraying assembly 3 per unit time is smaller than the maximum flow rate of the first water outlet 506, and the spraying amount of the spraying assembly 3 is greater than the flow rates of the second water outlet 508 and the third water outlet 509.

[0037] In the present utility model, the packaging material 6 enters the sterile chamber 1 from the inlet 102 of the sterile chamber 1, passes through the first guide wheel 401, then enters the spraying area 201 of the soaking chamber 2 through one of the through slots 204 on the partition plate 203, and passes through the first spraying unit 302 in the spraying assembly 3 from top to bottom. The spray head 304 in the spraying unit 302 sprays the sterilizing liquid towards the packaging material 6, which can initially moisten the packaging material 6 and wash away the bacteria colonies and other microorganisms on the packaging material 6. Then the packaging material 6 enters the soaking area 202 and passes through the second guide wheel 403. During this process, the packaging material 6 is sterilized by being soaked in the sterilizing liquid. The packaging material 6 then leaves the soaking area 202 and enters the spraying area 201 and passes through the third spraying unit 302 in the spraying assembly 3 from bottom to top, then passes through the third guide wheel 404, then passes through the second spraying unit 302 in the spraying assembly 3 from top to bottom, then enters the soaking area 202 and passes through the fourth guide wheel 405 and then passes through the gap between the first spraying unit 302 and the second spraying unit 302 in the spraying assembly 3, and finally passes through the second through slot 204 on the partition plate 203 and is output from the outlet 103 of the sterile chamber 1 through the power roller.

[0038] During the whole process, the packaging material 6 enters the spraying area 201 three times and the soaking area 202 twice, that is, the packaging material 6 is sterilized five times by spraying-soaking-spraying-spraying-soaking. Among them, the first spraying is mainly to pre-wet the packaging material 6 and initially rinse the bacteria colonies and other microorganisms. The first soaking is to allow the packaging material 6 to come into full contact with the sterilizing liquid. The second spraying and the third spraying are carried out continuously. Since the spraying direction of the nozzle 304 in the spraying unit 302 is set to be inclined upward, and the packaging material 6 passes through the spraying assembly 3 for the second time from bottom to top through the third spraying unit 302, and the packaging material 6 passes through the spraying assembly 3 for the third time from top to bottom through the second spraying unit 302. That is, the direction of the second spraying is inclined towards the conveying direction of the packaging material 6, and the direction of the third spraying is inclined away from the conveying direction of the packaging material 6, so that spraying in different directions can be realized, which can achieve a better spraying effect on the packaging material 6, is beneficial to flushing the bacteria colonies and other microorganisms on the surface of the packaging material 6, and the second soaking can wash away the bacteria colonies and other microorganisms floating on the surface of the packaging material 6 after flushing, and can make the sterilizing liquid and the packaging material 6 contact more fully, playing a role in complete sterilization.

[0039] The utility model can also adjust the liquid level height in the soaking chamber 2 through the liquid level adjusting device 5. During adjustment, the power device 505 drives the screw rod to lift, driving the adjusting chamber 503 to lift and lower in the water storage chamber 502. The bottom of the adjusting chamber 503 is slidably connected to the return pipe 501, so that the adjusting chamber 503 can always be kept in communication with the return pipe 501 when lifting and lowering. When the height of the adjusting chamber 503 rises, the first water outlet 506 on the adjusting chamber 503 rises. At this time, as the spraying assembly 3 continuously sprays the sterilizing liquid, the liquid level of the sterilizing liquid in the soaking chamber 2 and the liquid level in the adjusting chamber 503 will continuously rise until the sterilizing liquid in the adjusting chamber 503 can be discharged from the first water outlet 506; when the height of the adjusting chamber 503 drops, the first water outlet 506 on the adjusting chamber 503 is lower than the liquid level in the soaking chamber 2, and the sterilizing liquid in the adjusting chamber 503 will continuously be discharged from the first water outlet 506 into the water storage chamber 502 until the liquid levels in the soaking chamber 2, the adjusting chamber 503 and the position of the first water outlet 506 are flush; during the above process, the drain port 507 always remains open, and the sterilizing liquid in the water storage chamber 502 can continuously be discharged from the drain port 507. The sterilizing liquid discharged from the drain port 507 can be externally connected to a filtering device (not shown in the drawings) for filtering and then reused, which is beneficial to saving the use of the sterilizing liquid.

[0040] When the utility model stops being used, the spraying assembly 3 stops spraying the sterilizing liquid. At this time, through the second water outlet 508 and the third water outlet 509, the sterilizing liquid in the soaking chamber 2 and the adjusting chamber 503 can be completely discharged.

[0041] It should be understood that in the claims and the specification of the present utility model, all "including..." should be understood in an open-ended sense, that is, its meaning is equivalent to "at least containing...", rather than in a closed sense, that is, its meaning should not be understood as "only containing...".

[0042] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the technical field to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. An efficient sterilization device for packaging materials, characterized in that, Comprising: A sterile chamber, which is provided with an inlet and an outlet; A soaking chamber, which is arranged below the sterile chamber and is used for sterilizing packaging materials. The inner cavity of the soaking chamber is divided into an upper spraying area and a lower soaking area. The soaking area stores a sterilizing liquid; A spraying assembly, which is arranged in the spraying area of the soaking chamber and is used for spraying the sterilizing liquid towards the packaging materials; A guiding wheel assembly, which conveys and guides the packaging materials, enabling the packaging materials to enter the sterile chamber from the inlet, then enter the soaking chamber and repeatedly pass through the spraying area and the soaking area, and finally be output from the outlet.

2. The high-efficiency sterilization device for packaging materials according to claim 1, wherein, A partition is arranged between the sterile chamber and the soaking chamber to separate them. There are two through grooves on the partition for the packaging materials to enter and exit the soaking chamber respectively; A sealing gasket is fixedly arranged in each of the inlet and the outlet, and the packaging materials pass through the corresponding sealing gaskets when passing through the inlet and the outlet respectively.

3. The high-efficiency sterilization device for packaging materials according to claim 1, characterized in that, The bottom of the soaking chamber has a structure that gradually narrows from top to bottom; The guiding wheel assembly includes a first guiding wheel, a power roller group, a second guiding wheel, a third guiding wheel and a fourth guiding wheel. The first guiding wheel and the power roller group are located in the sterile chamber. The third guiding wheel is located in the spraying area of the soaking chamber and above the spraying assembly. The second guiding wheel and the fourth guiding wheel are located in the soaking area, and the second guiding wheel is located near the bottom in the soaking chamber, and the fourth guiding wheel is above the second guiding wheel; The first guiding wheel and the third guiding wheel are respectively on both sides of the connection line between the power roller group and the fourth guiding wheel; The diameters of the second guiding wheel, the third guiding wheel and the fourth guiding wheel decrease in sequence, and the packaging materials pass through the first guiding wheel, the second guiding wheel, the third guiding wheel, the fourth guiding wheel and the power roller group in sequence.

4. The high-efficiency sterilization device for packaging materials according to claim 1, wherein, The spraying assembly includes a water inlet pipe, and a number of spraying units are arranged on the water inlet pipe. Each spraying unit includes two parallel spraying pipes, and a plurality of nozzles are arranged on the spraying pipes. The nozzles on the two spraying pipes are arranged oppositely.

5. The high-efficiency sterilization device for packaging materials according to claim 4, wherein The spraying direction of the nozzles is inclined upwards.

6. The high-efficiency sterilization device for packaging materials according to claim 4 or 5, characterized in that, The cross-sectional area of the inner cavity of the spraying pipe gradually decreases from the end close to the water inlet pipe to the other end.

7. The high-efficiency sterilization device for packaging materials according to claim 6, characterized in that, A switch for controlling the opening and closing of the spraying pipe is arranged on the spraying pipe. Both the water inlet pipe and the switch are located outside the soaking chamber, and the part of the spraying pipe with nozzles is located inside the spraying pipe.

8. An efficient sterilization device for packaging materials according to claim 1, characterized in that, The sterilizing liquid is hydrogen peroxide.

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