Special Physical Indicator for High-Temperature Steam Disinfection Process and Its Processing Method

Abstract

The present invention discloses a special physical indicator for high-temperature steam disinfection process and its processing method, which relates to the technical field of physical indication for steam disinfection. It includes a lower tube body, in the middle of which there is a first accommodating cavity with an open top, and the first accommodating cavity is filled with a color-changing material; a middle tube body, the bottom of which is screwed on the top outer wall of the lower tube body, and there is a mesh partition inside the middle tube body. The mesh partition fits and stops at the top of the lower tube body. The top area of the mesh partition is the second accommodating cavity, and the inside of the second accommodating cavity is filled with a moisture absorption sheet, and the thickness of the moisture absorption sheet is the same as the depth of the second accommodating cavity; the middle of the mesh partition is relatively communicated above the first accommodating cavity; a cap, which is press-fitted on the top outer wall of the middle tube body, and there is an air hole for steam to enter on the top surface of the cap; a breathable membrane; the indicator of the present invention can be placed in the packaged set of tableware, and after the high-temperature steam disinfection is completed, the disinfection status of the set of tableware can be clearly indicated through the indicator.

Description

Technical Field

[0001] The present invention relates to the technical field of steam disinfection physical indication, and specifically to a physical indicator dedicated to high-temperature steam disinfection process and its processing method. Background Art

[0002] The hygienic and safety treatment process of sets of tableware (drinking utensils) needs to strictly follow national standards, including key processes such as washing, cleaning, disinfection, and packaging. However, the current standardized process of "disinfection first and then packaging" has significant defects in actual operation: If the whole process is not completed in a professional purification and disinfection workshop, the risk of secondary pollution caused by the packaging link after the disinfection of sets of tableware (including disposable ones) may occur, and the hygienic quality of the final product is difficult to be effectively guaranteed; For tableware disinfected by high-temperature steam, the industry generally adopts the method of regular sampling and testing. The sampling inspection method can only intermittently evaluate the residual of disinfection agent and the microbial limit. This passive and lagging quality monitoring mode has obvious hygienic and safety hazards and cannot ensure that the disinfection quality of each product leaving the factory meets the national standard requirements. Summary of the Invention

[0003] The purpose of the present invention is to provide a physical indicator dedicated to high-temperature steam disinfection process and its processing method to solve the problems raised in the prior art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A physical indicator dedicated to high-temperature steam disinfection process, including: a lower tube body, in the middle of which there is a first accommodation cavity with an open top, and the first accommodation cavity is filled with a color-changing material;

[0005] A middle tube body, the bottom of which is screwed onto the outer wall of the top end of the lower tube body. There is a mesh partition in the middle tube body, and the mesh partition fits and stops at the top end of the lower tube body. The top area of the mesh partition is a second accommodation cavity, and the second accommodation cavity is filled with a moisture-absorbing sheet, and the thickness of the moisture-absorbing sheet is the same as the depth of the second accommodation cavity; The middle part of the mesh partition is relatively communicated above the first accommodation cavity;

[0006] A cap, which is press-fitted onto the outer wall of the top of the middle tube body, and there is a gas hole for steam to enter on the top surface of the cap;

[0007] A breathable film, which covers the outer wall of the top of the middle tube body to seal the middle tube body. The breathable film is placed between the cap and the middle tube body. The breathable film is used to increase the connection tightness between the cap and the middle tube body and enable the steam to penetrate and contact the moisture-absorbing sheet; The breathable film is also used as the packaging material for sets of tableware. When high-temperature steam disinfects the packaged sets of tableware, the moisture-absorbing sheet gradually dissolves under the action of water vapor and high temperature, enabling the steam to pass through the breathable film and contact the color-changing material, and the color of the color-changing material can indicate the disinfection effect of the sets of tableware.

[0008] Further, a threaded groove is formed in the inner wall of the middle tube body. The threaded groove is located below the mesh partition plate. The outer diameter of the lower tube body is the same as that of the middle tube body. A convex ring is provided at the top end of the lower tube body. The inner diameter of the convex ring is the same as that of the first accommodation cavity. The convex ring is screwed into the threaded groove and abuts against the bottom surface of the mesh partition plate. A recovery ring groove is formed on the top surface of the convex ring. First clamping grooves are symmetrically formed at the bottom of the outer wall of the middle tube body. The bottom of the first clamping groove is an open structure. Second clamping grooves are symmetrically formed on the outer wall of the lower tube body. Both ends of the second clamping groove are open structures.

[0009] Further, the thickness of the moisture absorption sheet is 0.6 - 1.8 mm.

[0010] Further, the thickness of the breathable film covering the middle tube body is 60 - 90 µm.

[0011] The processing method of a physical indicator dedicated to the high-temperature steam disinfection process, the processing method comprising the following steps:

[0012] S1. Prepare raw materials, the raw materials including a moisture absorption sheet, a breathable coil material, a lower tube body, a middle tube body, and a cap; the formula composition of the moisture absorption sheet includes 60 - 73% of main materials, 16 - 19% of auxiliary materials, 6 - 9% of adhesives, 9 - 12% of glidants, and the balance is a coating agent;

[0013] S2. Assemble the raw materials into a physical indicator by a processing device:

[0014] S2.1. Fill the second accommodation cavity of the middle tube body with the moisture absorption sheet and fill the first accommodation cavity of the lower tube body with a color-changing material;

[0015] S2.2. Move the middle tube body and the lower tube body below the cap and on the same central line. Place the cap above the breathable coil material, place the middle tube body below the breathable coil material, and place the lower tube body below the middle tube body;

[0016] S2.3. Keep the middle tube body stationary, lower the cap to assemble it above the middle tube body and cut out a breathable film on the breathable film coil material, lift the lower tube body and screw it onto the lower part of the middle tube body to assemble into a physical indicator.

[0017] Further, the main material of the moisture absorption sheet is any one of α-D glucose, maltose, and sucrose; the auxiliary material is polyethylene glycol 6000; the adhesive is any one of sodium carboxymethyl cellulose, copovidone, and sorbitol; the glidant is any one of fumed silica, sodium stearyl fumarate, starch-based glidant, and glyceryl behenate; the coating agent is a pectin / chitosan composite system or a polylactic acid / polycaprolactone blend system.

[0018] Further, the preparation method of the moisture absorption sheet comprises the following steps: mixing each component material roughly together according to the formula ratio; putting the roughly mixed material into a swing mill for pulverization; putting the pulverized material into a ball mill for sufficient grinding; sieving the ground powder material with a 300-mesh sieve to obtain usable powder; pressing the powder into tablets with a tablet press; putting the tablet without floating powder into a coating pan for coating to make a moisture absorption sheet; the number of coating times can be one, two or more according to the disinfection parameter requirements.

[0019] Further, the processing device comprises a column, a first feeding component, a second feeding component, a film material storage component and a covering component. A horizontally arranged first driving rod is vertically provided on the side wall of the column, and the output end of the first driving rod is connected to a vertical plate. A first horizontal toothed plate is arranged at the top end of the vertical plate, and a second horizontal toothed plate is arranged at the bottom end; a first feeding component and a second feeding component are arranged on the inner wall of the column. The first feeding component is located above the second feeding component. The first feeding component is used to grab the middle tube body carrying the moisture absorption sheet, and the second feeding component is used to grab the lower tube body carrying the discoloring material. The first horizontal toothed plate drives the first feeding component to rotate, and the second horizontal toothed plate drives the second feeding component to rotate; the film material storage component is located above the first feeding component, and the covering component is located above the film material storage component.

[0020] Further, the covering component comprises a rear seat body rotatably arranged at the top end of the column. A top telescopic plate is arranged on the side wall of the rear seat body. A second driving rod is vertically arranged at the bottom surface of the outer end of the top telescopic plate. The bottom end of the second driving rod is connected to a centralized plate. Two sliding rods are vertically arranged at both ends of the bottom surface of the centralized plate, and a first spring rod is arranged in the middle of the bottom surface. The bottom end of the first spring rod is connected to a die box. The inside of the die box is a storage cavity. A cutting ring is arranged inside the storage cavity. A retaining ring is arranged on the outer wall of the top end of the cutting ring. The sliding rods penetrate through the die box and are slidably connected to the retaining ring at the bottom end. A plurality of second spring rods are arranged on the top surface of the retaining ring.

[0021] Further, an adjusting cavity is formed above the middle of the storage cavity. A bidirectional screw rod is installed inside the adjusting cavity. Adjusting blocks are symmetrically arranged on the outer walls of both ends of the bidirectional screw rod. The adjusting blocks are slidably placed inside the adjusting cavity. A clamping ring is arranged at the bottom surface of the adjusting block. The clamping ring is located above the retaining ring; a cap is fitted and inserted into the cutting ring, and the top surface of the cap abuts against the inner top surface of the storage cavity. The clamping ring is used to clamp and position the cap.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The core value of the present invention lies in achieving the technological innovation of "packaging first and then disinfection", which changes the disinfection mode of traditional tableware (drinkware). After the invention technology is applied and promoted, the disinfection process will be carried out after packaging, enabling the tableware (drinkware) to complete terminal disinfection in a completely sealed state, fundamentally eliminating the risk of secondary pollution that may be caused in the packaging link after disinfection in the traditional process. This technological innovation not only simplifies the production process and reduces the strict requirements for the cleanliness of the packaging environment, but more importantly, it realizes a leapfrog upgrade from process control to terminal quality assurance, enabling the disinfection effect of each set of tableware (drinkware) to be finally verified. This technology conforms to the preventive control concept of the HACCP system, establishes a traceable terminal disinfection quality assurance system for the catering industry, and has significant industry transformation significance and application value.

[0024] 2. Innovatively, discolored silica gel is used as a visualization carrier, and the obvious color change of the discolored silica gel enables manufacturers of complete sets of tableware (drinkware) and end consumers to identify whether the disinfection of the tableware (drinkware) is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic structural diagram of a special physical indicator for the high-temperature steam disinfection process of the present invention;

[0026] Figure 2 Schematic side cross-sectional structure diagram of the indicator of the present invention;

[0027] Figure 3 Schematic structural diagram of the processing device of the indicator of the present invention;

[0028] Figure 4 Schematic structural diagram of the assembled part of the processing device of the present invention;

[0029] Figure 5 Schematic structural diagram of the first feeding component and the second feeding component of the present invention;

[0030] Figure 6 Schematic structural diagram of the butt joint between the lower tube body and the support seat of the present invention;

[0031] Figure 7 Schematic structural diagram of the butt joint between the middle tube body and the support ring of the present invention;

[0032] Figure 8 Schematic cross-sectional structure diagram of a first perspective of the mold box of the present invention;

[0033] Figure 9 Schematic cross-sectional structure diagram of another perspective of the mold box of the present invention;

[0034] Figure 10 Schematic structural diagram of the film material storage component of the present invention.

[0035] Figure 11Schematic diagram of the restraint plate structure of the present invention.

[0036] Reference numerals:

[0037] 100, indicator; 110, lower tube body; 111, convex ring; 112, recovery ring groove; 113, second card slot; 114, first accommodation cavity; 120, middle tube body; 121, first card slot; 122, mesh partition; 123, second accommodation cavity; 124, threaded groove; 130, cap; 131, air hole; 140, breathable film; 200, moisture absorption sheet; 300, discoloring silica gel particles; 400, upright column; 410, first driving rod; 420, vertical plate; 430, first horizontal toothed plate; 440, second horizontal toothed plate; 500, first feeding assembly; 510, first rotating column; 511, first support seat; 512, second support seat; 513, first gear; 520, first horizontal support plate; 530, supporting ring; 531, first clamping block; 532, circumferential cutting groove; 600, second feeding assembly; 610, second rotating column; 611, third support seat; 612, fourth support seat; 613, second gear; 620, second horizontal support plate; 630, third driving rod; 631, rotating motor; 640, supporting seat; 641, second clamping block; 700, film material storage assembly; 710, guide rail; 711, moving seat; 720, end plate; 721, inclined moving groove; 730, bidirectional driving rod; 731, restraint plate; 732, vertical moving groove; 740, guide post; 741, guide block; 750, film releasing wheel frame; 760, film winding wheel frame; 770, breathable coil material; 800, covering assembly; 810, rear seat body; 820, top telescopic plate; 830, second driving rod; 840, centralized plate; 841, first spring rod; 842, sliding rod; 850, die box; 851, storage cavity; 852, adjustment cavity; 860, bidirectional screw; 861, adjustment block; 862, clamping ring; 870, cutting ring; 871, retaining ring; 872, second spring rod; 910, blanking conveyor belt; 911, receiving box; 920, first feeding conveyor belt; 921, receiving block; 930, second feeding conveyor belt; 940, third feeding conveyor belt. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Embodiment:

[0040] As Figures 1 - 2As shown in the figure, to solve the problems existing in disinfection before packaging, a special physical indicator for high-temperature steam disinfection process is provided, including:

[0041] A lower tube body 110, in the middle of which there is a first accommodation cavity 114 with an open top, and the first accommodation cavity 114 is filled with a color-changing material;

[0042] A middle tube body 120, the bottom of which is screwed onto the top outer wall of the lower tube body 110. There is a mesh partition 122 inside the middle tube body 120. The mesh partition 122 fits and stops at the top of the lower tube body 110. The top area of the mesh partition 122 is a second accommodation cavity 123, and the second accommodation cavity 123 is filled with a moisture-absorbing sheet 200; there is a first through hole in the middle of the mesh partition 122, and the first through hole is relatively communicated above the first accommodation cavity 114;

[0043] A cap 130, which covers the top outer wall of the middle tube body 120, and there is an air hole 131 for steam to enter on the top surface of the cap 130;

[0044] A breathable film 140, which covers the top outer wall of the middle tube body 120 to seal the middle tube body 120. The breathable film 140 is placed between the cap 130 and the middle tube body 120. The breathable film 140 is used to increase the connection tightness between the cap 130 and the middle tube body 120 and enable the steam to penetrate and contact the moisture-absorbing sheet 200; the breathable film 140 is also used as the packaging material for the set of tableware; when the high-temperature steam disinfects the packaged set of tableware, the moisture-absorbing sheet 200 gradually dissolves under the action of water vapor and high temperature, so that the steam passes through the breathable film 140 and contacts the color-changing material, and the color of the color-changing material can indicate the disinfection effect of the set of tableware.

[0045] In the above solution:

[0046] 1. Using the breathable film 140 to wrap the set of tableware can ensure that when the packaged tableware is steam-disinfected, the steam can pass through the breathable film 140 to disinfect the tableware, and at the same time, the steam can enter the second accommodation cavity 123 of the middle tube body 120 through the air hole 131;

[0047] 2. Using the breathable film 140 to wrap the middle tube body 120 can not only increase the connection tightness between the cap 130 and the middle tube body 120, prevent the cap 130 from loosening from the middle tube body 120, but also play a certain degree of isolation effect to prevent large external particles from entering the second accommodation cavity 123, ensuring that only high-temperature steam can pass through the breathable film 140; at the same time, the breathable film 140 can restrain and position the moisture-absorbing sheet 200 to prevent the moisture-absorbing sheet 200 from shifting;

[0048] 3. Design a dissolvable moisture absorber 200 that can dissolve only after being impacted by high-temperature steam for a specified time, so that the high-temperature steam can contact the discoloring material. When the discoloring material changes color, it can indicate the steam disinfection effect. After the steam disinfection is completed, the factory quality inspection personnel only need to observe the color of the discoloring material to determine whether the set of tableware is qualified for disinfection, realizing post-packaging disinfection and accurately grasping the disinfection result. When using the set of tableware, the user can understand the disinfection status of the set of tableware through the indicator, making the user feel more at ease when using it.

[0049] 4. Design a physical indicator 100 assembled from three parts: a lower tube body 110, a middle tube body 120, and a cap 130. The lower tube body 110 and the middle tube body 120 store the moisture absorber 200 and the discoloring material respectively, with simple assembly and convenient material addition.

[0050] 5. The design of the mesh partition 122 has the following effects:

[0051] 5.1. The mesh partition 122 can block the discoloring material to prevent it from overflowing into the first accommodation cavity 114 during assembly. At the same time, during assembly, it can also stop the lower tube body 110, making the assembly more simple and accurate.

[0052] 5.2. The mesh partition 122 can prevent the discoloring material from flowing out into the first accommodation cavity 114 when the moisture absorber 200 dissolves.

[0053] 5.3. When the moisture absorber 200 dissolves into a liquid, the liquid can disperse into the hole grooves of the grid partition. The hole grooves at the edge can temporarily store the liquid, and this part of the liquid will not flow into the first accommodation cavity 114, preventing the dissolved liquid from occupying the space of the first accommodation cavity 114 and affecting the discoloration of the discoloring particles when contacting high-temperature steam.

[0054] As an embodiment, a threaded groove 124 is provided on the inner wall of the middle tube body 120. The threaded groove 124 is located below the mesh partition 122. The outer diameter of the lower tube body 110 is the same as that of the middle tube body 120. A convex ring 111 is provided at the top of the lower tube body 110. The inner diameter of the convex ring 111 is the same as the inner diameter of the first accommodation cavity 114. The convex ring 111 is screwed into the threaded groove 124 and stops against the bottom surface of the mesh partition 122. A recovery ring groove 112 is provided on the top surface of the convex ring 111. First card slots 121 are symmetrically provided at the bottom of the outer wall of the middle tube body 120, and the bottom of the first card slots 121 is an open structure. Second card slots 113 are symmetrically provided on the outer wall of the lower tube body 110, and both ends of the second card slots 113 are open structures.

[0055] In the above solution: The dissolved liquid temporarily stored at the edge of the mesh partition 122 can fall into the recovery ring groove 112, increasing the storage space.

[0056] The settings of the first card slot 121 and the second card slot 113 can achieve the following effects: facilitating the transfer and positioning during the assembly of the indicator; facilitating the positioning of the indicator during packaging.

[0057] When the convex ring 111 is screwed into the threaded groove 124, the convex ring 111 can contact the mesh partition 122, enabling the lower tube body 110 to be accurately and quickly screwed into place.

[0058] As an embodiment, the thickness of the breathable film 140 covering the middle tube body 120 is 60 - 90 µm; the breathable film 140 is exemplarily any one of CPP, RCP, modified TPU, modified PP, ePTFE. The selection of the breathable film 140 is not limited to the above examples, and other environmentally friendly food materials can also be used.

[0059] As an embodiment, the color-changing material is color-changing silica gel particles 300. After being exposed to 100 °C for 10 minutes, the color-changing silica gel changes from blue to pink, indicating that the disinfection level is qualified and meets the standard.

[0060] As an embodiment, the shape of the indicator includes but is not limited to cylindrical, multi-prismatic, or other regular geometric shapes; the multi-prismatic shape is exemplarily: triangular prism, square prism, pentagonal prism, hexagonal prism.

[0061] To enable the moisture-absorbing sheet 200 to be fully dissolved only after being exposed to 100 °C for 10 minutes and cause the color-changing material to change color, the following formula and preparation process of the moisture-absorbing sheet 200 are given:

[0062] The formula composition of the moisture-absorbing sheet 200: 60 - 73% of the main material, 16 - 19% of the auxiliary material, 6 - 9% of the binder, 9 - 12% of the glidant, and the balance is the coating agent; the main material of the moisture-absorbing sheet 200 is any one of α-D glucose, maltose, and sucrose; the auxiliary material is polyethylene glycol 6000; the binder is any one of sodium carboxymethylcellulose, copovidone, and sorbitol; the glidant is any one of fumed silica, sodium stearyl fumarate, starch-based glidant, and glyceryl behenate; the coating agent is a pectin / chitosan composite system or a polylactic acid / polycaprolactone blend system;

[0063] The preparation process of the moisture-absorbing sheet 200:

[0064] 1) According to the formula ratio, mix the component materials roughly together;

[0065] 2) Put the roughly mixed materials into a swing hammer mill for pulverization;

[0066] 3) Put the pulverized materials into a ball mill for sufficient grinding for 6 hours;

[0067] 4) Use a 300-mesh sieve to screen the ground powder materials to obtain the usable powder;

[0068] 5) Use a tablet press to press the powder into tablets (usually circular, but not limited to circular, and can be oval, triangular, square or other regular geometric shapes), with a thickness between 0.6 - 1.8 mm;

[0069] 6) Place the tablet core with floating powder removed into a coating pan for coating to make tablets. The number of coating times can be one, two or multiple times according to the requirements of disinfection parameters.

[0070] The processing method of the physical indicator 100 dedicated to the high - temperature steam disinfection process includes the following steps:

[0071] S1. Make raw materials, which include a moisture - absorbing sheet 200, a breathable coil 770, a lower tube body 110, a middle tube body 120, and a cap 130; The production formula of the moisture - absorbing sheet 200 is: main ingredient: maltose, content 66%; auxiliary ingredient: polyethylene glycol 6000, content 16%; binder: sodium carboxymethylcellulose, content 9%; glidant: fumed silica, content 9%; coating agent: pectin / chitosan composite system; The breathable coil 770 is made of CPP material with a thickness of 60 microns;

[0072] S2. Assemble the raw materials into the physical indicator 100 by a processing device:

[0073] S2.1. Fill the second accommodation cavity 123 of the middle tube body 120 with the moisture - absorbing sheet 200, and fill the first accommodation cavity 114 of the lower tube body 110 with a color - changing material;

[0074] S2.2. Move the middle tube body 120 and the lower tube body 110 below the cap 130 and on the same center line. Place the cap 130 above the breathable coil 770, place the middle tube body 120 below the breathable coil 770, and place the lower tube body 110 below the middle tube body 120;

[0075] S2.3. Keep the middle tube body 120 stationary, lower the cap 130 to assemble above the middle tube body 120 and cut out the breathable film 140 on the breathable film 140 coil, lift the lower tube body 110 and screw - install it below the middle tube body 120 to assemble the physical indicator 100;

[0076] S2.4. Lift and unload the physical indicator 100.

[0077] As Figures 3 - 11 shown, the processing device of the physical indicator 100 dedicated to the high - temperature steam disinfection process includes:

[0078] A vertical column 400, a first loading component 500, a second loading component 600, a film material storage component 700, and a covering component 800. A horizontally arranged first driving rod 410 is vertically provided on the side wall of the vertical column 400. The output end of the first driving rod 410 is connected to a vertical plate 420. A first horizontal toothed plate 430 is provided at the top of the vertical plate 420, and a second horizontal toothed plate 440 is provided at the bottom. The inner wall of the vertical column 400 is provided with the first loading component 500 and the second loading component 600. The first loading component 500 is located above the second loading component 600. The first loading component 500 is used to grasp the middle tube body 120 carrying the moisture-absorbing sheet 200, and the second loading component 600 is used to grasp the lower tube body 110 carrying the discoloring material. The first horizontal toothed plate 430 drives the first loading component 500 to rotate, and the second horizontal toothed plate 440 drives the second loading component 600 to rotate. The film material storage component is located above the first loading component 500, and the covering component 800 is located above the film material storage component.

[0079] In order to enable the first loading component 500 to achieve the rapid transfer of the middle tube body 120, the following solution is given: The first loading component 500 includes a first support seat 511, a first rotating column 510, and a second support seat 512. The top of the first rotating column 510 is rotatably connected to the first support seat 511, and the bottom is rotatably connected to the second support seat 512. The first support seat 511 and the second support seat 512 are vertically provided on the side wall of the vertical column 400. A first gear 513 is provided on the outer wall of the first rotating column 510. One side of the first gear 513 is meshed and connected to the first horizontal toothed plate 430. A first horizontal support plate 520 is fixedly provided on the outer wall of the first rotating column 510. A support ring 530 is provided at the end of the first horizontal support plate 520. First clamping blocks 531 are symmetrically provided at the bottom of the inner wall of the support ring 530. A circumferential cutting groove 532 is provided at the top of the inner wall of the support ring 530. When the middle tube body 120 is placed in the support ring 530, the first clamping blocks 531 are inserted into the first clamping grooves 121.

[0080] To enable the second loading component 600 to achieve rapid transfer of the lower tube body 110, the following solution is provided: The second loading component 600 includes a third support base 611, a second rotating column 610, and a fourth support base 612. The top end of the second rotating column 610 is rotatably connected to the third support base 611, and the bottom end is rotatably connected to the fourth support base 612. The third support base 611 and the fourth support base 612 are vertically arranged on the side wall of the column 400. A second gear 613 is provided on the outer wall of the second rotating column 610, and the other side of the second gear 613 is meshed and connected to the second horizontal toothed plate 440. A second horizontal support plate 620 is fixedly provided on the outer wall of the second rotating column 610. A third driving rod 630 is provided on the top surface of the end of the second horizontal support plate 620. A rotating motor 631 is provided at the top end of the third driving rod 630. The output end of the rotating motor 631 is connected to a support base 640. A placement groove is provided in the middle of the support base 640. Second clamping blocks 641 are symmetrically provided on the inner wall of the placement groove. When the lower tube body 110 is placed in the support base 640, the second clamping blocks 641 are inserted into the second clamping grooves 113.

[0081] The working processes of the above-mentioned first loading component 500 and second loading component 600 are as follows: The first loading component 500 and the second loading component 600 rotate in opposite directions. When taking materials, the first driving rod 410 extends outwards, thereby driving the vertical plate 420 to move inwards. The first horizontal toothed plate drives the first gear 513 to rotate, and the second horizontal toothed plate drives the second gear 613 to rotate, so that the first horizontal support plate 520 and the second horizontal support plate 620 rotate synchronously and in opposite directions;

[0082] A manipulator or a worker takes the middle tube body 120 loaded with the moisture-absorbing sheet 200 from the third loading conveyor belt 940, and then places it in the support ring 530. The first clamping block 531 is inserted into the first clamping groove 121. The first clamping block 531 supports and positions the middle tube body 120, and the top of the middle tube body 120 extends out of the support ring 530;

[0083] A manipulator or a worker takes the lower tube body 110 loaded with the discoloring silica gel particles 300 from the second loading conveyor belt 930, and then places it in the support base 640. The lower tube body 110 is inserted into the placement groove, and the second clamping blocks 641 are inserted into the second clamping grooves 113. The second clamping blocks 641 restrict and position the lower tube body 110, and the top of the lower tube body 110 extends out of the support base 640;

[0084] After the material taking is completed, the first driving rod 410 retracts to drive the first horizontal toothed plate and the second horizontal toothed plate to move, thereby driving the first horizontal support plate 520 and the second horizontal support plate 620 to rotate inwards. The top surface of the middle tube body 120 is attached to the bottom surface of the breathable coil 770, and the lower tube body 110 is placed directly below the middle tube body 120;

[0085] After the cap 130 is fully closed, the third driving rod 630 drives the rotary motor 631 to lift. At the same time, the rotary motor 631 drives the support base 640 to rotate, so that the convex ring 111 is screwed into the thread groove 124 of the middle pipe body 120, and the top end of the convex ring 111 abuts against the mesh partition plate 122.

[0086] Since the breathable film 140 is small, it is very inconvenient to separately cut and manufacture the breathable film 140 from the breathable coil material 770 and then cover it on the middle pipe body 120. To solve the above problems, the following solution is given: The film material storage assembly 700 includes a film release wheel frame 750, a film winding wheel frame 760, an end plate 720 and a moving seat 711. The moving seat 711 is slidably installed on the top of the guide rail 710. A bidirectional driving rod 730 is provided on the top of the moving seat 711. An end plate 720 is provided at the end of the moving seat 711. Oblique moving grooves 721 are symmetrically formed on the inner wall of the end plate 720. One end of the breathable coil material 770 is wound around the film release wheel frame 750, and the other end is wound around the film winding wheel frame 760. Both ends of the bidirectional driving rod 730 are connected to the film release wheel frame 750 and the film winding wheel frame 760. The film release wheel frame 750 and the film winding wheel frame 760 are slidably placed in the oblique moving grooves 721. Both ends of the bidirectional driving rod 730 are connected to the constraint plate 731. A vertical moving groove 732 is formed on the inner wall of the constraint plate 731. A guide block 741 is vertically slidably embedded in the vertical moving groove 732. A guide post 740 is connected to the side wall of the guide block 741. The guide post 740 penetrates the oblique moving groove 721 and its end is connected to the film release wheel frame 750 or the film winding wheel frame 760. The working process of the film material storage assembly 700 is as follows:

[0087] Before the first feeding assembly 500 needs to rotate, the moving seat 711 moves outward along the guide rail 710, so that the film release wheel frame 750 and the film winding wheel frame 760 move outward, thus leaving a space for the first feeding assembly 500 to rotate.

[0088] In the initial state, the film release wheel frame 750 releases the breathable coil material 770, and then winds it onto the film winding wheel frame 760. The breathable coil material 770 is in a taut state. The top surface of the middle pipe body 120 first adheres to the bottom surface of the taut breathable coil material 770.

[0089] When the capping assembly 800 caps the cap 130, the bidirectional driving rod 730 drives the constraint plate 731 to move inward. The guide block 741 moves vertically along the vertical moving groove 732, and the guide post 740 moves along the oblique moving groove 721, so that the film release wheel frame 750 and the film winding wheel frame 760 tilt and move synchronously inward and downward. At this time, the breathable film 140 material can be released from the taut state and covered on the middle pipe body 120, avoiding the influence of pulling of the breathable coil material 770 on the covering effect, and at the same time, full - range covering can be realized.

[0090] To synchronously solve the problems of the automatic covering of the cap 130 and the rapid feeding of the fabricated physical indicator 100, the following solution is provided: The covering assembly 800 includes a rear seat body 810 rotatably provided at the top end of the column 400. A top telescopic plate 820 is provided on the side wall of the rear seat body 810. A second driving rod 830 is vertically provided at the bottom surface of the outer end of the top telescopic plate 820. The bottom end of the second driving rod 830 is connected to a concentrated plate 840. Two sliding rods 842 are vertically provided at both ends of the bottom surface of the concentrated plate 840, and a first spring rod 841 is provided in the middle of the bottom surface. The bottom end of the first spring rod 841 is connected to a die box 850. The inside of the die box 850 is a storage cavity 851. A cutting ring 870 is provided inside the storage cavity 851. A retaining ring 871 is provided on the outer wall of the top end of the cutting ring 870. The sliding rod 842 slidably penetrates through the die box 850 and its bottom end is connected to the retaining ring 871. A plurality of groups of second spring rods 872 are provided on the top surface of the retaining ring 871. An adjustment cavity 852 is opened above the middle of the storage cavity 851. A bidirectional screw rod 860 is installed inside the adjustment cavity 852. Adjustment blocks 861 are symmetrically provided on the outer walls of both ends of the bidirectional screw rod 860. The adjustment blocks 861 are slidably placed inside the adjustment cavity 852. A clamping ring 862 is provided on the bottom surface of the adjustment block 861. The clamping ring 862 is located above the retaining ring 871; the cap 130 is fitted and inserted into the cutting ring 870, and the top surface of the cap 130 abuts against the inner top surface of the storage cavity 851. The clamping ring 862 is used to clamp and position the cap 130.

[0091] During covering:

[0092] The first step: The second driving rod 830 drives the concentrated plate 840 to descend once, and the cap 130 is covered on the outside of the middle pipe body 120. The die box 850 abuts against the surface of the supporting ring 530. The breathable coil material 770 is placed between the cap 130 and the middle pipe body 120. Then the second driving rod 830 drives the concentrated plate 840 to descend a second time. The first spring rod 841 contracts, the sliding rod 842 slides downward and pushes the cutting ring 870 to move downward and stretches the second spring rod 872. The cutting ring 870 extends into the cutting groove 532 of the supporting ring 530 and cuts out a circular breathable film 140;

[0093] After the cap 130 is covered, the lower pipe body 110 is screwed into the middle pipe body 120;

[0094] The second step: The second driving rod 830 contracts and drives the cap 130 to lift. Since the cap 130 has been interference-fitted on the middle pipe body 120, when the cap 130 is lifted, the middle pipe body 120 and the lower pipe body 110 can be driven to lift accordingly. The assembled indicator 100 passes through the cutting hole of the breathable coil material 770, realizing the automatic feeding of the indicator 100;

[0095] Step 3: The motor drives the rear seat body to rotate, causing the top telescopic plate 820 to rotate onto the blanking conveyor belt 910. The second driving rod 830 drives the indicator 100 to descend, causing the indicator 100 to insert into the receiving box 911 of the blanking conveyor belt 910. Then, the bidirectional screw 860 drives the adjusting block 861 to move outward along the adjusting cavity 852, and the two sets of clamping rings 862 are disengaged, causing the clamping ring 862 to disengage from the cap 130. The indicator 100 can then be transferred into the receiving box 911.

[0096] Subsequently, the top telescopic plate 820 extends outward, causing the die box 850 to move onto the first loading conveyor belt 920. The die box 850 covers the cap 130. The bidirectional screw 860 rotates to drive the clamping ring 862 to approach and clamp the cap 130, achieving automatic grasping of the cap 130 and causing the cap 130 to disengage from the receiving block 921 of the first loading conveyor belt 920.

[0097] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. Physical indicator dedicated to high-temperature steam disinfection process, characterized in that Comprising: A lower tube body, in the middle of which there is a first accommodation cavity with an open top, and a color-changing material is filled in the first accommodation cavity; A middle tube body, the bottom of which is screwed onto the outer wall of the top end of the lower tube body. There is a mesh partition inside the middle tube body, and the mesh partition fits and stops at the top end of the lower tube body. The top area of the mesh partition is the second accommodation cavity, and a moisture-absorbing sheet is filled in the second accommodation cavity. The thickness of the moisture-absorbing sheet is the same as the depth of the second accommodation cavity; the middle part of the mesh partition is relatively communicated above the first accommodation cavity; A cap, which is press-fitted onto the outer wall of the top of the middle tube body, and there is an air hole for steam to enter on the top surface of the cap; A breathable film, which covers the outer wall of the top of the middle tube body to seal the middle tube body. The breathable film is placed between the cap and the middle tube body. The breathable film is used to increase the connection tightness between the cap and the middle tube body and enable the steam to penetrate and contact the moisture-absorbing sheet; the breathable film is also used as the packaging material for the set of tableware. When the high-temperature steam disinfects the packaged set of tableware, the moisture-absorbing sheet gradually dissolves under the action of water vapor and high temperature, so that the steam passes through the breathable film and contacts the color-changing material, and the color of the color-changing material can indicate the disinfection effect of the set of tableware.

2. The physical indicator dedicated to the high-temperature steam disinfection process according to claim 1, characterized in that: Threaded grooves are provided on the inner wall of the middle tube body, and the threaded grooves are located below the mesh partition. The outer diameter of the lower tube body is the same as the outer diameter of the middle tube body. A convex ring is provided at the top end of the lower tube body, and the inner diameter of the convex ring is the same as the inner diameter of the first accommodation cavity. The convex ring is screwed into the threaded groove and stops at the bottom surface of the mesh partition; a recovery ring groove is provided on the top surface of the convex ring; first card slots are symmetrically provided at the bottom of the outer wall of the middle tube body, and the bottom of the first card slots is an open structure; second card slots are symmetrically provided on the outer wall of the lower tube body, and both ends of the second card slots are open structures.

3. The physical indicator dedicated to the high-temperature steam disinfection process according to claim 1, wherein: The thickness of the moisture-absorbing sheet is 0.6 - 1.8 mm.

4. The physical indicator dedicated to the high-temperature steam disinfection process according to claim 1, characterized in that: The breathable film covering the middle tube body has a thickness of 60 - 90 µm.

5. The processing method of the special physical indicator for high-temperature steam disinfection process according to claim 1, characterized in that: The processing method comprises the following steps: S1. Making raw materials, the raw materials include a moisture-absorbing sheet, a breathable coil, a lower tube body, a middle tube body and a cap; the formula composition of the moisture-absorbing sheet includes 60 - 73% of main materials, 16 - 19% of auxiliary materials, 6 - 9% of adhesives, 9 - 12% of glidants, and the balance is coating agents; S2. Assembling the raw materials into a physical indicator by a processing device: S2.

1. Filling the moisture-absorbing sheet into the second accommodation cavity of the middle tube body and filling the color-changing material into the first accommodation cavity of the lower tube body; ​ ​ 6. The processing method of the special physical indicator for high-temperature steam disinfection process according to claim 5, characterized in that: ​ 7. The processing method of the special physical indicator for high-temperature steam disinfection process according to claim 6, characterized in that: The preparation method of the moisture-absorbing sheet comprises the following steps: mixing each component material roughly together according to the formula ratio; putting the roughly mixed material into a swing crusher for crushing; putting the crushed material into a ball mill for sufficient grinding; sieving the ground powder material with a 300-mesh sieve to obtain the usable powder; pressing the powder into tablets with a tablet press; putting the tablet without floating powder into a coating pan for coating to make the moisture-absorbing sheet; the number of coating times can be one, two or more according to the requirements of disinfection parameters.

8. The processing method of the special physical indicator for high-temperature steam disinfection process according to claim 7, characterized in that: The processing device comprises a column, a first feeding component, a second feeding component, a film material storage component and a covering component. A horizontally arranged first driving rod is vertically arranged on the side wall of the column. The output end of the first driving rod is connected to a vertical plate. A first horizontal toothed plate is arranged at the top end of the vertical plate, and a second horizontal toothed plate is arranged at the bottom end thereof; the inner wall of the column is provided with the first feeding component and the second feeding component. The first feeding component is located above the second feeding component. The first feeding component is used for grasping the middle tube body carrying the moisture-absorbing sheet, and the second feeding component is used for grasping the lower tube body carrying the discoloring material. The first horizontal toothed plate drives the first feeding component to rotate, and the second horizontal toothed plate drives the second feeding component to rotate; the film material storage component is located above the first feeding component, and the covering component is located above the film material storage component.

9. The processing method of the special physical indicator for high-temperature steam disinfection process according to claim 8, characterized in that: The covering component comprises a rear seat body which is rotatably arranged at the top end of the column. A top telescopic plate is arranged on the side wall of the rear seat body. A second driving rod is vertically arranged at the bottom surface of the outer end of the top telescopic plate. The bottom end of the second driving rod is connected to a centralized plate. Two sliding rods are vertically arranged at both ends of the bottom surface of the centralized plate, and a first spring rod is arranged in the middle of the bottom surface thereof. The bottom end of the first spring rod is connected to a die box. The inside of the die box is a storage cavity. A cutting ring is arranged inside the storage cavity. A retaining ring is arranged on the outer wall of the top end of the cutting ring. The sliding rods penetrate through the die box in a sliding manner and the bottom ends thereof are connected to the retaining ring. A plurality of second spring rods are arranged on the top surface of the retaining ring.

10. The processing method of the special physical indicator for high-temperature steam disinfection process according to claim 9, characterized in that: An adjusting cavity is formed above the middle of the storage cavity. A bidirectional screw rod is installed inside the adjusting cavity. Adjusting blocks are symmetrically arranged on the outer walls of both ends of the bidirectional screw rod. The adjusting blocks are slidably placed inside the adjusting cavity. A clamping ring is arranged at the bottom surface of the adjusting block. The clamping ring is located above the retaining ring; a cap is fitted and inserted into the cutting ring and the top surface of the cap abuts against the inner top surface of the storage cavity. The clamping ring is used for clamping and positioning the cap.

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