CN215082551U

CN215082551U - Sterilization mechanism

Info

Publication number: CN215082551U
Application number: CN202120630883.XU
Authority: CN
Inventors: 吴蓉
Original assignee: Suzhou Light Yuedong Industrial Intelligent Technology Co ltd
Current assignee: Suzhou Light Yuedong Industrial Intelligent Technology Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-12-10
Anticipated expiration: 2031-03-29

Abstract

The utility model discloses a mechanism disinfects, including spreading material spare, at least one first laser emission subassembly: the spreading part is used for spreading materials; the first laser emission assembly is used for adjusting the laser beam with uniform light intensity into a thin line shape to irradiate the material, and the first laser emission assembly is arranged above the material spreading part; spread the material piece and spread the material, then the material pierces through via first laser emission subassembly and disinfects, the utility model discloses a mechanism disinfects utilizes the laser can be with high-efficient, the microorganism that kills fast of the mode that influences the minimum to the material, can be in the short time, high energy density is made to the local region to can accurate controlled temperature, the cooling is fast, can not make the basement material heat up for a long time, do not influence material colour, property, flavor, the laser action process is non-contact effect simultaneously, does not produce cross contamination's characteristics, utilize long and thin linear laser to carry out high-efficient the disinfecting to materials such as rotatory powdered solid, the bactericidal effect is good, the practicality is strong.

Description

Sterilization mechanism

Technical Field

The utility model belongs to the technical field of sterilizing equipment, especially, relate to a sterilization mechanism.

Background

In the field of food, food needs to be sterilized frequently, and radiation sterilization and steam sterilization are sterilization methods mainly adopted in the industries of powdery solid food, medical treatment and the like at present.

However, after practical use, some problems are found in such a sterilization mode: the irradiation can change the genetic molecular structure, so the biological risk is uncertain, and most of foreign enterprises and large domestic enterprises do not accept the irradiation products; and the steam sterilization has high energy consumption, long time consumption, great influence on materials, limited usable materials and environmental pollution.

Therefore, a sterilization mechanism which has small influence on materials, low cost and good sterilization effect is urgently needed to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art and providing a sterilization mechanism with high sterilization efficiency, small influence on materials, low cost, energy conservation and environmental protection.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a sterilization mechanism comprising:

the spreading part is used for spreading materials;

the first laser emission assembly is used for irradiating elongated linear laser onto a material and is arranged above the material paving part;

wherein the spreading member spreads the material and then the material is sterilized by penetration of the first laser emitting assembly.

Furthermore, the spreading part is a roller with a hollow inner part.

Further, the method also comprises the following steps:

at least one second laser emitting assembly;

the material spreading part is a roller with a hollow inner part, the second laser emission component is arranged in the hollow inner part of the roller, and the material spreading part is made of a material with high laser wavelength transmittance.

Further, the first laser emission assembly and the second laser emission assembly have the same structure, and the first laser emission assembly includes:

a laser for emitting a Gaussian laser;

the beam shaper is arranged below the laser and is used for shaping the Gaussian laser emitted by the laser into flat-top laser with uniform light intensity;

the lens assembly is arranged below the beam shaper and is used for elongating the flat-top laser from the laser with a round point-shaped cross section into elongated linear laser;

the lens assembly comprises a concave lens, a first cylindrical lens, a second cylindrical lens and a third cylindrical lens which are coaxially arranged up and down.

Furthermore, the lens component is made of a material with high laser wavelength transmittance, and a coating layer covers the lens component.

Furthermore, a protective film is arranged on the spreading part.

Furthermore, a cooling assembly is arranged on the outer surface of the paving part and comprises a metal block, and the metal block is connected with the cold water circulation assembly.

Furthermore, cooling components are arranged on the outer surface and the inner surface of the paving part, each cooling component comprises a metal block, and the metal blocks are connected with the cold water circulation components

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the utility model discloses the mechanism of disinfecting of scheme utilizes the laser energy high-efficient in order to influence the mode minimum to the material, kill the microorganism fast, can be in the short time, high energy density is made to the local area, and can accurate controlled temperature, the cooling is fast, can not make the basement material heat up for a long time, do not influence material colour, property, flavor, the laser action process is non-contact effect simultaneously, do not produce cross contamination's characteristics, utilize long and thin linear laser to carry out high-efficient the disinfecting to materials such as rotatory powdery solid, excellent in sterilization effect, therefore, the clothes hanger is strong in practicability.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

fig. 1 is a schematic structural diagram of the present invention in the first embodiment;

FIG. 2 is a schematic structural diagram of a first laser emitting assembly;

FIG. 3 is a schematic diagram of the optical path transmission of the laser light through the lens assembly in the Z and X directions in the first embodiment;

FIG. 4 is a schematic diagram of the optical path transmission of the laser light through the lens assembly in the Z and Y directions in the first embodiment;

FIG. 5 is a schematic structural view of the present invention in the second embodiment;

wherein: the device comprises a material spreading part 2, a first laser emitting component 3, a cooling component 5, a second laser emitting component 9, laser 30, a concave lens 31, a first cylindrical lens 32, a second cylindrical lens 33, a third cylindrical lens 34, an optical fiber 35 and a feeding port 60.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not constitute limitations on the invention.

The utility model discloses design based on following thinking: the method comprises the steps of firstly, elongating Gaussian laser emitted by a laser from laser with a round point-shaped cross section into slender linear laser, then carrying out light transmission sterilization on materials spread by a spreading piece through the slender linear laser line, wherein the laser adopts single-wavelength laser with high microbial absorption rate and low material absorption rate, so that the color and flavor of the materials are not changed while sterilization is carried out, the microorganisms are killed efficiently and quickly in a mode of having minimum influence on the materials, the substrate material is not heated for a long time, the color, the property and the flavor of the materials are not influenced, meanwhile, the laser action process is a non-contact action, cross pollution is not generated, and the method can be used for materials such as powdery solids.

The following description is made by way of several specific examples.

Example one

Referring to fig. 1, the sterilization mechanism of the present embodiment includes a material spreading member 2 and a first laser emitting assembly 3, which are two parts in total; the spreading member 2 in this embodiment is a roller with a hollow interior, and the spreading member 2 is replaced by the roller in the following description of this embodiment; when the material conveying device works, materials are sequentially conveyed to the roller, and the roller lays the materials on the surface of the roller when rolling.

The first laser emission component 3 is arranged above the roller in an inclined mode and plays a role in sterilizing materials; of course, the number of the first laser emitting assemblies 3 may be two or more, and the larger the number, the stronger the sterilization capability.

In addition, referring to fig. 2-4, in this embodiment, a beam of parallel laser emitted by the first laser emitting assembly needs to be elongated into a slender line and then irradiates on the material, so as to ensure a wide sterilization range for meeting the actual sterilization requirement.

Specifically, the first laser emitting portion 3 includes an upper portion and a lower portion that are sequentially disposed: a laser 30, a beam shaper 35 and a lens assembly; the laser can emit single-wavelength Gaussian laser with the wavelength range of 5-12 microns, the beam shaper 35 shapes the Gaussian laser into flat-top laser with uniform light intensity distribution after receiving the Gaussian laser, and finally the flat-top laser is emitted into the lens assembly.

The lens assembly comprises a concave lens 31, a first cylindrical lens 32, a second cylindrical lens 33 and a third cylindrical lens 34 which are arranged below the beam shaper 35 and are coaxial in sequence.

The concave lens 31, the first cylindrical lens 32, the second cylindrical lens 33 and the third cylindrical lens 34 are all made of materials with high transmittance of laser wavelength of 5-12 microns, and meanwhile, a transmission-enhanced coating film with the wavelength needs to be added.

First cylindrical lens 32, second cylindrical lens 33 and third cylindrical lens 34 are the semicircle cylindricality, and first cylindrical lens 32 and third cylindrical lens 34's structure is symmetry about the structure sets up, the position of second cylindrical lens 33 is the position after first cylindrical lens 32 rotates 90.

In order to ensure that the flat-top laser light can form a long and thin line-shaped laser light with uniform light intensity on the working surface after passing through the lens assembly, the following conditions need to be satisfied among the concave lens 31, the first cylindrical lens 32, the second cylindrical lens 33 and the third cylindrical lens 34:

f₁+d₁= f₂；f₂+d₂=f₃; d₃>0；d₄=f₄。

wherein f is₁、f₂、f₃And f₄Is the focal length of the concave lens, the first cylindrical lens, the second cylindrical lens and the third cylindrical lens, d₁D2, d3 and d4 are the spacing between the concave lens, the first cylindrical lens, the second cylindrical lens and the third cylindrical lens; when the above conditions are satisfied, the laser beam can be irradiated in a long and thin line shape onto the material in the drum.

The working process is as follows: when the roller rolls clockwise, the conveyed material is laid on the outer surface of the roller, and when the material rolls synchronously through the roller, the first laser emission assembly irradiates laser to the material in a slender line shape; the laser can kill microorganisms efficiently and quickly in a mode of minimizing the influence on materials, can control the temperature accurately, is cooled quickly, cannot heat up the substrate materials for a long time, does not influence the color, the property and the flavor of the materials, has a non-contact action in the laser action process, does not produce cross pollution, and has good sterilization effect, low cost and wide practicability.

As a further preferred embodiment, since the drum is irradiated with the laser light for a long time, the temperature of the drum may rise; therefore, a cooling component 5 is additionally arranged on the outer surface of the roller, and the cooling component 5 comprises a metal block which is connected with a cold water circulation component; when the metal block cooling device works, the metal block is close to the roller, the metal block and the roller are subjected to close-range heat transfer, and then the metal block is cooled by the cold water circulating assembly, so that the roller is rapidly cooled, and the temperature of the roller is kept constant within the process requirement range.

Example two

Referring to fig. 5, the present embodiment discloses another sterilization mechanism, which is different from the first embodiment in that: the hollow roller of the material spreading member 2 is made of a material with high laser transmittance of a single wavelength in a wavelength range of 5-12 microns, and the material spreading member is replaced by a light-transmitting roller in the following description of the embodiment; in addition, a second laser emission component with the same structure as the first laser emission component is arranged in the hollow of the light-transmitting roller, and the number of the second laser emission components can be two or more.

Wherein, owing to add the second laser emission subassembly in the printing opacity cylinder cavity, and even high printing opacity material also can only reach laser 95% ~99% and see through, the printing opacity cylinder can heat up after long-time accumulation, so also need cool off the printing opacity cylinder, surface and the internal surface at the printing opacity cylinder have all set up a cooling module in this embodiment to can reach the rapid refrigerated function of the temperature of printing opacity cylinder, maintain the temperature of printing opacity cylinder invariable in the technological requirement scope.

In addition, the printing opacity cylinder in this embodiment is 10.6 microns laser high light transmission material, and the thickness can guarantee that structural strength within range is the thinner the better to reduce the absorption of printing opacity cylinder itself to the laser, promote the ability and the efficiency of disinfecting.

In order to ensure the safety of food contact, a protective film such as an aluminum oxide or silicon dioxide coating film is additionally arranged on the light-transmitting roller for protection.

The working process of the embodiment is as follows: the material is laid on the outer surface of the roller, when the material rolls synchronously through the roller, the first laser emission assembly and the second laser emission assembly irradiate the elongated linear laser to the material simultaneously, and the material can be sterilized by penetrating the laser in the upper direction and the lower direction, so that the uneven sterilization effect caused by the fact that a beam of laser penetrates the material can be balanced; meanwhile, laser irradiation is carried out in the upper direction and the lower direction of the materials, so that the thickness of the spreading materials can be increased to improve the yield of the sterilized materials.

Of course, the two embodiments described above cannot include all embodiments, the auxiliary material component may also be a conveyor belt, and when the conveyor belt is used for transmission, only one first laser emission component located outside the material spreading component can be used for penetrating and sterilizing, so that the equipment can meet the use requirements in different fields.

At present, in the experiment of some powdery solid materials, such as spice, the power of laser is 400-1600 milliwatts per square millimeter, the paving thickness is 1-5 millimeters, and the acting time is 0.01-1 second, so that the sterilization requirement can be well met.

The utility model discloses a mechanism disinfects, utilize the laser energy with the mode high efficiency that influences the minimum, kill the microorganism fast, can be in the short time, high energy density is made to local area, and can accurate controlled temperature, the cooling is fast, can not make the basement material heat up for a long time, do not influence material colour, property, flavor, the laser action process is non-contact effect simultaneously, do not produce cross contamination's characteristics, utilize long and thin linear laser to carry out high-efficient the disinfecting to materials such as rotatory powdery solid, excellent in sterilization effect, therefore, the clothes hanger is strong in practicability.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. A sterilizing mechanism, comprising:

the spreading part is used for spreading materials;

2. The sterilizing mechanism as set forth in claim 1, wherein: the spreading part is a roller with a hollow inner part.

3. The sterilizing mechanism of claim 1, further comprising:

at least one second laser emitting assembly;

4. The sterilizing mechanism of claim 3, wherein the first and second laser emitting assemblies are identical in construction, the first laser emitting assembly comprising:

a laser for emitting a Gaussian laser;

5. The sterilizing mechanism of claim 4, further comprising: the lens component is made of materials with high laser wavelength transmittance, and a coating layer covers the lens component.

6. The sterilizing mechanism as set forth in claim 1, wherein: and a protective film is also arranged on the spreading part.

7. The sterilizing mechanism of claim 2, further comprising: and a cooling component is arranged on the outer surface of the spreading part and comprises a metal block, and the metal block is connected with the cold water circulation component.

8. The sterilizing mechanism as claimed in claim 3, wherein cooling units are provided at both the outer surface and the inner surface of the paver, said cooling units comprising a metal block connected to a cold water circulation unit.