Cigarette packet printing ink heavy metal determination device and method

Abstract

The invention belongs to the technical field of printing ink detection, and discloses a cigarette packet printing ink heavy metal measuring device and method.The device comprises a rotary heating assembly, the rotary heating assembly is used for driving ink to rotate and conducting heating at regular time, and a sealing assembly is installed at the top of the rotary heating assembly; the sealing assembly is used for collecting evaporated liquor generated in the printing ink heating process, the material adding and stirring assembly is installed at the top of the sealing assembly and used for adding auxiliary liquor into printing ink and stirring mixed liquor, and the structure integrates multiple functions of heating, stirring, material adding, condensation and collection and the like; through cooperation of equipment such as the motor, the electric furnace and the electric push rod, automation of ink treatment is achieved, the working efficiency is greatly improved, all functional parts are controlled and coordinated, the stability and reliability of the ink treatment process are ensured, and the complexity of operation is reduced.

Description

Technical Field

[0001] The present invention relates to the field of printing ink detection, and more specifically, to a device and method for determining heavy metals in cigarette package printing ink. Background Art

[0002] The widespread application of ink materials highlights the importance of determining the residual amount of harmful heavy metal elements in production safety. At present, we mainly carry out relevant measurements based on the light industry standard QB2930-2008 and the cigarette production industry standard YQ83-2018. In the field of heavy metal detection, both at home and abroad, instrumental analysis methods dominate. This method is achieved by analyzing the absorption or emission spectra of molecules or atoms through detection instruments. Specific technical means include atomic fluorescence spectroscopy, atomic absorption spectroscopy, and ultraviolet-visible spectrophotometry. Among them, spectrophotometry, as a mature analytical method, can not only perform qualitative analysis of substances, but also quantitative analysis, demonstrating its wide application value in the field of heavy metal detection.

[0003] In the prior art, before testing the printing ink, the ink to be tested needs to be added to a three-necked flask equipped with a condenser at room temperature, and the ink needs to be heated using a heating device until there is no mobile phase in the ink tube to obtain concentrated ink. Then, a nitric acid solution needs to be injected into a beaker and heated again. This operation process is relatively cumbersome. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a device and method for determining heavy metals in cigarette packaging printing ink, which realizes the automation of ink processing, greatly improves work efficiency, ensures the stability and reliability of the ink processing process through control and coordination between various functional components, and reduces the complexity of operation.

[0005] A heavy metal determination device for cigarette pack printing ink comprises a rotating heating component, the rotating heating component is used to drive the ink to rotate and heat it regularly, a sealing component is installed on the top of the rotating heating component, the sealing component is used to collect evaporated liquid generated during the heating process of the ink, and a material adding and stirring component is installed on the top of the sealing component, the material adding and stirring component is used to add auxiliary liquid into the ink and stir the mixed liquid.

[0006] Preferably, the rotating heating assembly includes a base, the top of the base is rotatably connected to a box body, the top of the box body is fixedly connected to a fixed shaft, the bottom of the fixed shaft penetrates the box body and extends to below it, the inner wall of the fixed shaft is rotatably connected to a first rotating shaft, the bottom of the first rotating shaft penetrates the fixed shaft and extends to below it, the top of the base is fixedly connected to a support frame, the support frame is sleeved on the fixed shaft and rotatably connected thereto, and the circumferential outer wall of the first rotating shaft is fixedly connected to fan blades.

[0007] Preferably, a control motor is fixedly connected to the top of the base, a first synchronous wheel is fixedly connected to the output end of the control motor, a second synchronous wheel is fixedly connected to the circumferential outer wall of the first rotating shaft, the first synchronous wheel and the second synchronous wheel are connected via a synchronous belt transmission, a first gear is fixedly connected to the output end of the control motor, an inner gear ring is fixedly connected to the inner wall of the box body, and the first gear is meshed with the inner gear ring.

[0008] Preferably, a hydraulic cylinder is fixedly connected to the top of the box body, an electric furnace is fixedly connected to the output end of the hydraulic cylinder, a beaker is detachably mounted on the inner wall of the electric furnace, an arc surface is provided at the port of the beaker, and a sealing groove is provided on the outer wall of the beaker.

[0009] Preferably, the sealing assembly includes a sealing cover, the inner wall of the sealing cover is sleeved with a connecting pipe, the top of the first rotating shaft extends into the connecting pipe and is rotatably connected thereto, the fan blades are located inside the connecting pipe, the outer wall of the connecting pipe is fixedly connected to a drain pipe, the circumferential outer wall of the drain pipe is fixedly connected to a valve, the circumferential outer wall of the sealing cover is fixedly connected to a plurality of metal pipes, and the ends of the metal pipes are respectively fixedly connected to the sealing cover.

[0010] Preferably, the bottom of the sealing cover is rotatably connected with a first support ring and a second support ring respectively, a support ring is fixedly connected between the first support ring and the second support ring, a cone groove is provided on the top of the support ring, a water collecting groove is provided on the top of the support ring, and the water collecting groove is connected to the lower end of the cone groove; The top of the support ring is provided with an insertion hole, the bottom of the support ring is fixedly connected with a fixing ring by bolts, and a sealing ring is clamped between the fixing ring and the support ring; A plurality of flow guide pipes are fixedly connected to the inner wall of the first branch ring, and ends of the flow guide pipes are fixedly connected to connecting pipes respectively.

[0011] Preferably, the material adding and stirring assembly comprises a feed pipe, the bottom of the feed pipe is fixedly connected to the sealing cover, the outer wall of the feed pipe is provided with a second sliding hole, the circumferential outer wall of the feed pipe is fixedly connected to a mounting ring, the outer wall of the mounting ring is fixedly connected to a storage hopper, the top of the storage hopper is an open structure and is buckled with a hopper cover, and the bottom of the storage hopper is fixedly connected to a liquid guide tube; The inner wall of the second sliding hole is slidably connected with a sliding block, the outer wall of the sliding block is respectively fixedly connected with a first connecting tube and a second connecting tube, and the end of the second connecting tube is fixedly connected with the liquid guiding tube; The inner wall of the slider is fixedly connected with a sealing plug, and a through hole is provided at the bottom of the sealing plug. The inner wall of the sealing plug is rotatably connected with a connecting shaft, and one end of the connecting shaft close to the second connecting pipe is fixedly connected with a sealing plate, and both ends of the sealing plate are arc structures. The circumferential outer wall of the connecting shaft is fixedly connected with a second gear, and the inner wall of the sealing plug is fixedly connected with a pressure block, and the inner wall of the pressure block is slidably connected with an extension rod, and the circumferential outer wall of the extension rod is sleeved with a spring, the bottom of the extension rod is fixedly connected with a toothed plate, and the toothed plate is meshed with the second gear, the top of the extension rod is fixedly connected with a pressure rod, and the top of the pressure rod is fixedly connected with a sliding rod, the end of the sliding rod passes through the slider and is slidably connected to it, the end of the sliding rod passes through the slider and is slidably connected to it, one end of the spring is fixedly connected to the pressure block, and the other end of the spring is fixedly connected to the toothed plate.

[0012] Preferably, a first sliding hole is opened on the outer wall of the feeding tube, an electric push rod is fixedly connected to the inner wall of the mounting ring, an extension plate is fixedly connected to the output end of the electric push rod, and the end of the extension plate passes through the first sliding hole and is slidably connected thereto; The top of the feeding tube is fixedly connected to a driving motor, the output end of the driving motor passes through the feeding tube and is rotatably connected thereto, the output end of the driving motor is fixedly connected to a cross shaft, the outer circumferential wall of the cross shaft is slidably connected to a cross sleeve, the outer circumferential wall of the feeding tube is rotatably connected to a first rotating sleeve, and the outer wall of the first rotating sleeve is fixedly connected to the extension plate; The outer circumferential wall of the cross sleeve is fixedly connected with a positioning ring, the outer circumferential wall of the positioning ring is fixedly connected with a liquid storage tank, the inner wall of the liquid storage tank is rotatably connected with a rotating cover, and the inner wall of the rotating cover is fixedly connected with the first connecting pipe; A plurality of infusion tubes are fixedly connected to the bottom of the liquid storage tank; The circumferential outer wall of the cross sleeve is fixedly connected to a plurality of first brackets, the inner walls of the first brackets are provided with pipe sleeves, the outer walls of the pipe sleeves are fixedly connected to two second rotating shafts, the ends of the second rotating shafts respectively penetrate the first brackets and are rotatably connected thereto, torsion springs are sleeved at both ends of the second rotating shafts, the two ends of the second rotating shafts are fixedly connected to limiting sleeves, the inner walls of the pipe sleeves are fixedly connected to hollow rods, the hollow rods are respectively fixedly connected to corresponding infusion tubes, the outer walls of the hollow rods are provided with a plurality of drainage holes, one end of the torsion spring is fixedly connected to the limiting sleeve, and the other end of the torsion spring is fixedly connected to the first bracket.

[0013] Preferably, the inner wall of the discharge pipe is rotatably connected to a second rotating sleeve, the inner wall of the second rotating sleeve is fixedly connected to a plurality of second brackets, the outer wall of the cross shaft is fixedly connected to a cross ring, the outer walls of the cross ring are respectively fixedly connected to a plurality of second brackets, the inner walls of the second brackets are rotatably connected to rollers, and the outer walls of the hollow rod are respectively in sliding contact with the outer walls of the corresponding rollers.

[0014] A method for measuring heavy metals in cigarette packaging printing ink, comprising the following steps: S1. Add the ink to be tested into the beaker, add an appropriate amount of nitric acid solution into the storage hopper, install the beaker on the electric furnace, push the beaker upward by the hydraulic cylinder, insert the end of the beaker into the socket, and make the sealing ring fit into the sealing groove of the outer wall of the beaker, so as to seal the gap between the beaker and the support ring; S2, timing the running time of the control motor, controlling the time required for the beaker to rotate to the bottom of the feeding tube, the control motor drives the first gear to rotate, the first gear drives the inner gear ring to rotate, the inner gear ring drives the box to rotate, the box drives the beaker to rotate, the heating temperature of the electric furnace is set, and the electric furnace is started to start heating while the beaker rotates; S3, when the beaker rotates, the supporting ring is driven to rotate, and the first branch ring and the second branch ring are driven to rotate through the supporting ring. When the supporting ring rotates, the control motor drives the second synchronous wheel to rotate through the first synchronous wheel, drives the first rotating shaft to rotate rapidly through the second synchronous wheel, and drives the fan blade to rotate rapidly through the first rotating shaft, and the water vapor inside the sealing cover is sucked into the connecting pipe through the metal pipe. The sucked water vapor contacts the inner wall of the connecting pipe, condenses to form liquid and accumulates inside the connecting pipe. The water vapor entering the sealing cover condenses into liquid and flows into the top of the supporting ring, flows into the water collecting tank along the cone groove, and enters the connecting pipe through the guide pipe to collect the evaporated liquid; S4, control the motor to rotate the beaker to the bottom of the feeding tube within the set time, then the beaker stops heating, the control motor stops, the electric push rod pushes the extension plate to slide along the inner wall of the first sliding hole, the extension plate drives the cross sleeve to slide downward along the cross axis through the first rotating sleeve, the cross sleeve drives the liquid storage tank and the rotating cover to move through the positioning ring, drives the first connecting tube to move through the rotating cover, drives the slider to slide downward along the second sliding hole through the first connecting tube, and drives the multiple hollow rods to move downward when the cross sleeve moves, at this time the hollow rods extend to the inside of the beaker, and when the hollow rods move downward, under the torsion of the torsion spring, the multiple hollow rods spread outward with the cross axis as the center; S5, when the slider slides to the bottom of the second sliding hole, the bottom of the slider is in contact with the feeding tube, the slider slides upward along the slider, the slider drives the pressure rod to move, the pressure rod drives the extension rod to move, the extension rod drives the tooth plate to move, the spring is compressed, the tooth plate drives the second gear to rotate, the second gear drives the sealing plate to rotate through the connecting shaft, the sealing plate releases the blocking of the through hole, the nitric acid solution in the storage hopper flows into the liquid storage tank through the liquid guide tube, the second connecting tube, the sealing plug and the first connecting tube, the nitric acid solution in the liquid storage tank enters the hollow rod through the infusion tube, and flows into the beaker through the drainage hole; S6. The cross shaft is driven to rotate by a driving motor, the cross shaft drives the cross sleeve to rotate, the cross sleeve drives the multiple hollow rods to rotate, the concentrated ink and nitric acid solution in the beaker are mixed and stirred by the hollow rods, when the cross shaft rotates, the second bracket is driven to rotate by the cross ring, and the middle part of the hollow rod is driven to rotate by the second bracket, so as to improve the stability of the hollow rod when rotating; S7. After stirring, the electric push rod drives the cross sleeve to move upward through the extension plate, and drives the multiple hollow rods to move through the cross sleeve. At this time, the bottoms of the multiple hollow rods are squeezed by the roller shaft, and are close to the cross shaft and stored in the discharge pipe. When the cross sleeve moves, it drives the slider to move upward. At this time, the slider is out of contact with the discharge pipe. At this time, under the tension of the spring, the tooth plate drives the second gear to rotate in the opposite direction, and the through hole on the sealing plug is blocked by the sealing plate; S8. Timing the running time of the control motor, controlling the motor to drive the box to rotate again, controlling the time for the beaker to rotate to the initial position, and at the same time controlling the heating temperature of the electric furnace in sections to perform microwave digestion to obtain digested ink.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The structure integrates multiple functions such as heating, stirring, adding, condensation collection, etc. Through the cooperation of motors, electric furnaces, electric push rods and other equipment, the automation of ink processing is realized, which greatly improves work efficiency. Through control and coordination between various functional components, the stability and reliability of the ink processing process are ensured, and the complexity of operation is reduced.

[0016] 2. The cross sleeve, hollow rod and other components are not only used for adding and mixing nitric acid solution, but can also be conveniently stored in the discharge pipe after stirring, realizing the effective use of space. The introduction of the torsion spring enables the hollow rod to automatically expand outward when moving downward, ensuring that the nitric acid solution can be evenly distributed in the beaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the rotary heating assembly of the present invention; Figure 3 This is a schematic diagram of the installation structure of the fixed shaft of the present invention; Figure 4 It is a schematic diagram of the installation structure of the first synchronous wheel of the present invention; Figure 5 It is a partial structural schematic diagram of the beaker of the present invention; Figure 6 It is a schematic diagram of the overall structure of the sealing assembly of the present invention; Figure 7 It is a schematic diagram of the installation structure of the support ring of the present invention; Figure 8 It is a schematic diagram of the installation structure of the sealing ring of the present invention; Fig. 9 It is a schematic diagram of the installation structure of the drainage pipe of the present invention; Fig.10 This is a schematic diagram of the overall structure of the material adding and stirring assembly of the present invention; Fig.11 This is a schematic diagram of the internal structure of the feed pipe of the present invention; Fig.12 It is a schematic diagram of the installation structure of the cross sleeve of the present invention; Fig.13 It is a schematic diagram of the installation structure of the cross ring of the present invention; Fig.14 It is a schematic diagram of the installation structure of the slider of the present invention; Fig.15 It is a schematic diagram of the installation structure of the sealing plug of the present invention; Fig.16 It is a schematic diagram of the installation structure of the second gear of the present invention.

[0019] Explanation of the numbers in the figure: 1. Rotating heating component; 101. Base; 102. Box; 103. Support frame; 104. Fixed shaft; 105. First rotating shaft; 106. Control motor; 107. Internal gear ring; 108. First synchronous wheel; 109. First gear; 110. Second synchronous wheel; 111. Fan blade; 112. Hydraulic cylinder; 113. Electric furnace; 114. Beaker; 115. Arc surface; 116. Sealing groove; 2. Sealing component ; 201, sealing cover; 202, connecting pipe; 203, metal pipe; 204, guide pipe; 205, support ring; 206, cone groove; 207, water collecting tank; 208, fixing ring; 209, sealing ring; 210, plug hole; 211, drain pipe; 212, valve; 213, first branch ring; 214, second branch ring; 3, material adding and stirring assembly; 301, feed pipe; 302, first slide hole; 303, second slide hole; 304, installation Ring; 305, storage hopper; 306, liquid guide tube; 307, electric push rod; 308, drive motor; 309, extension plate; 310, cross shaft; 311, first rotating sleeve; 312, cross sleeve; 313, liquid storage tank; 314, rotating cover; 315, infusion tube; 316, first bracket; 317, second rotating shaft; 318, limit sleeve; 319, torsion spring; 320, pipe sleeve; 321, hollow rod; 322, second rotating Sleeve; 323, cross ring; 324, second bracket; 325, roller; 326, first connecting pipe; 327, second connecting pipe; 328, slider; 329, slide rod; 330, sealing plug; 331, connecting shaft; 332, sealing plate; 333, through hole; 334, second gear; 335, tooth plate; 336, extension rod; 337, spring; 338, pressure block; 339, pressure rod; 340, drainage hole; 341, positioning ring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the implementation mode of the present application clearer, the technical solution in the implementation mode of the present application will be clearly and completely described in combination with the drawings in the implementation mode of the present application. Obviously, the described implementation mode is a part of the implementation mode of the present application, not all the implementation modes. Based on the implementation mode in the present application, all other implementation modes obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application. The specific implementation modes of the present invention are described in detail in combination with the drawings in the specification. Embodiment 1:

[0021] like Figure 1-Figure 5As shown, a heavy metal determination device for cigarette package printing ink includes a rotating heating component 1, which is used to drive the ink to rotate and heat it regularly. The rotating heating component 1 includes a base 101, the top of the base 101 is rotatably connected to a box 102, the top of the box 102 is fixedly connected to a fixed shaft 104, the bottom of the fixed shaft 104 penetrates the box 102 and extends to the bottom thereof, the inner wall of the fixed shaft 104 is rotatably connected to a first rotating shaft 105, the bottom of the first rotating shaft 105 penetrates the fixed shaft 104 and extends to the bottom thereof, the top of the base 101 is fixedly connected to a support frame 103, the support frame 103 is sleeved on the fixed shaft 104 and rotatably connected thereto, and the circumferential outer wall of the first rotating shaft 105 is fixedly connected to a fan blade 111.

[0022] A control motor 106 is fixedly connected to the top of the base 101, a first synchronous wheel 108 is fixedly connected to the output end of the control motor 106, a second synchronous wheel 110 is fixedly connected to the circumferential outer wall of the first rotating shaft 105, the first synchronous wheel 108 and the second synchronous wheel 110 are connected via a synchronous belt transmission, a first gear 109 is fixedly connected to the output end of the control motor 106, an inner gear ring 107 is fixedly connected to the inner wall of the box body 102, and the first gear 109 is meshed with the inner gear ring 107.

[0023] A hydraulic cylinder 112 is fixedly connected to the top of the box body 102, and an electric furnace 113 is fixedly connected to the output end of the hydraulic cylinder 112. A beaker 114 is detachably mounted on the inner wall of the electric furnace 113. An arc surface 115 is provided at the end of the beaker 114, and a sealing groove 116 is provided on the outer wall of the beaker 114. Embodiment 2:

[0024] This embodiment provides a device for measuring heavy metals in cigarette packaging printing ink, which further includes the following structure based on the first embodiment: like Figure 1 and Figure 6-Figure 9 As shown, a sealing component 2 is installed on the top of the rotating heating component 1. The sealing component 2 is used to collect the evaporating liquid generated during the heating process of the ink. The sealing component 2 includes a sealing cover 201. The inner wall of the sealing cover 201 is sleeved with a connecting pipe 202. The top of the first rotating shaft 105 extends into the connecting pipe 202 and is rotatably connected thereto. The fan blade 111 is located inside the connecting pipe 202. The outer wall of the connecting pipe 202 is fixedly connected to a drain pipe 211. The circumferential outer wall of the drain pipe 211 is fixedly connected to a valve 212. The circumferential outer wall of the sealing cover 201 is fixedly connected to a plurality of metal tubes 203. The ends of the metal tubes 203 are respectively fixedly connected to the sealing cover 201.

[0025] The bottom of the sealing cover 201 is rotatably connected with a first support ring 213 and a second support ring 214, respectively. A support ring 205 is fixedly connected between the first support ring 213 and the second support ring 214. A cone groove 206 is formed on the top of the support ring 205. A water collecting groove 207 is formed on the top of the support ring 205. The water collecting groove 207 is connected to the lower end of the cone groove 206. An insertion hole 210 is provided on the top of the supporting ring 205 , and a fixing ring 208 is fixedly connected to the bottom of the supporting ring 205 by bolts, and a sealing ring 209 is clamped between the fixing ring 208 and the supporting ring 205 .

[0026] A plurality of flow guide pipes 204 are fixedly connected to the inner wall of the first branch ring 213 , and ends of the flow guide pipes 204 are fixedly connected to the connecting pipes 202 , respectively. Embodiment three:

[0027] This embodiment provides a device for measuring heavy metals in cigarette packaging printing ink, which further includes the following structure based on the second embodiment: like Figure 1 and Figure 10-Figure 16 As shown, a material adding and stirring assembly 3 is installed on the top of the sealing assembly 2. The material adding and stirring assembly 3 is used to add auxiliary liquid into the ink and stir the mixed liquid. The material adding and stirring assembly 3 includes a feed pipe 301. The bottom of the feed pipe 301 is fixedly connected to the sealing cover 201. A second sliding hole 303 is opened on the outer wall of the feed pipe 301. A mounting ring 304 is fixedly connected to the circumferential outer wall of the feed pipe 301. A storage hopper 305 is fixedly connected to the outer wall of the mounting ring 304. The top of the storage hopper 305 is an open structure and is buckled with a hopper cover. The bottom of the storage hopper 305 is fixedly connected to a liquid guide tube 306.

[0028] The inner wall of the second sliding hole 303 is slidably connected to a sliding block 328 , the outer wall of the sliding block 328 is fixedly connected to a first connecting tube 326 and a second connecting tube 327 , respectively, and the end of the second connecting tube 327 is fixedly connected to the liquid guiding tube 306 .

[0029] The inner wall of the slider 328 is fixedly connected to a sealing plug 330, a through hole 333 is provided at the bottom of the sealing plug 330, the inner wall of the sealing plug 330 is rotatably connected to a connecting shaft 331, the end of the connecting shaft 331 close to the second connecting pipe 327 is fixedly connected to a sealing plate 332, both ends of the sealing plate 332 are arc-shaped structures, the outer wall of the circumference of the connecting shaft 331 is fixedly connected to a second gear 334, the inner wall of the sealing plug 330 is fixedly connected to a pressing block 338, the inner wall of the pressing block 338 is slidably connected to an extension rod 336, and the extension rod 337 is slidably connected to the extension rod 336. A spring 337 is sleeved on the outer wall of the circle 36, a tooth plate 335 is fixedly connected to the bottom of the extension rod 336, the tooth plate 335 is meshed with the second gear 334, a pressure rod 339 is fixedly connected to the top of the extension rod 336, a slide rod 329 is fixedly connected to the top of the pressure rod 339, the end of the slide rod 329 passes through the slider 328 and is slidably connected thereto, the end of the slide rod 329 passes through the slider 328 and is slidably connected thereto, one end of the spring 337 is fixedly connected to the pressure block 338, and the other end of the spring 337 is fixedly connected to the tooth plate 335.

[0030] A first sliding hole 302 is formed on the outer wall of the feeding tube 301, an electric push rod 307 is fixedly connected to the inner wall of the mounting ring 304, an extension plate 309 is fixedly connected to the output end of the electric push rod 307, and the end of the extension plate 309 passes through the first sliding hole 302 and is slidably connected thereto.

[0031] A driving motor 308 is fixedly connected to the top of the feeding tube 301, and the output end of the driving motor 308 passes through the feeding tube 301 and is rotatably connected thereto. A cross shaft 310 is fixedly connected to the output end of the driving motor 308, and a cross sleeve 312 is slidably connected to the circumferential outer wall of the cross shaft 310. A first rotating sleeve 311 is rotatably connected to the circumferential outer wall of the feeding tube 301, and the outer wall of the first rotating sleeve 311 is fixedly connected to the extension plate 309.

[0032] The outer circumferential wall of the cross sleeve 312 is fixedly connected with a positioning ring 341 , the outer circumferential wall of the positioning ring 341 is fixedly connected with a liquid storage tank 313 , the inner wall of the liquid storage tank 313 is rotatably connected with a rotating cover 314 , and the inner wall of the rotating cover 314 is fixedly connected to the first connecting pipe 326 .

[0033] A plurality of infusion tubes 315 are fixedly connected to the bottom of the liquid storage tank 313 .

[0034] A plurality of first brackets 316 are fixedly connected to the circumferential outer wall of the cross sleeve 312, a pipe sleeve 320 is provided on the inner wall of the first bracket 316, two second rotating shafts 317 are fixedly connected to the outer wall of the pipe sleeve 320, the ends of the second rotating shafts 317 respectively penetrate the first bracket 316 and are rotatably connected thereto, a torsion spring 319 is sleeved on both ends of the second rotating shaft 317, a limiting sleeve 318 is fixedly connected to both ends of the second rotating shaft 317, a hollow rod 321 is fixedly connected to the inner wall of the pipe sleeve 320, the hollow rod 321 is fixedly connected to the corresponding infusion tube 315, a plurality of drainage holes 340 are opened on the outer wall of the hollow rod 321, one end of the torsion spring 319 is fixedly connected to the limiting sleeve 318, and the other end of the torsion spring 319 is fixedly connected to the first bracket 316.

[0035] The inner wall of the discharge pipe 301 is rotatably connected to the second rotating sleeve 322, the inner wall of the second rotating sleeve 322 is fixedly connected to multiple second brackets 324, the outer wall of the cross shaft 310 is fixedly connected to a cross ring 323, the outer walls of the cross ring 323 are respectively fixedly connected to the multiple second brackets 324, the inner walls of the second brackets 324 are rotatably connected to the rollers 325, and the outer walls of the hollow rod 321 are in sliding contact with the corresponding outer walls of the rollers 325.

[0036] Working principle: add the ink to be tested into the beaker 114, add an appropriate amount of 50% nitric acid solution into the storage hopper 305, install the beaker 114 on the electric furnace 113, push the beaker 114 upward through the hydraulic cylinder 112, insert the end of the beaker 114 into the socket 210, and make the sealing ring 209 stuck into the sealing groove 116 of the outer wall of the beaker 114, so as to seal the gap between the beaker 114 and the support ring 205; The running time of the control motor 106 is timed to control the time required for the beaker 114 to rotate to the bottom of the discharge pipe 301. The control motor 106 drives the first gear 109 to rotate, the first gear 109 drives the inner gear ring 107 to rotate, the inner gear ring 107 drives the box 102 to rotate, and the box 102 drives the beaker 114 to rotate. The heating temperature of the electric furnace 113 is set to control the temperature to be heated below 100° C. The electric furnace 113 is started to start heating while the beaker 114 rotates; When the beaker 114 rotates, the supporting ring 205 is driven to rotate, and the first branch ring 213 and the second branch ring 214 are driven to rotate through the supporting ring 205. When the supporting ring 205 rotates, the control motor 106 drives the second synchronous wheel 110 to rotate through the first synchronous wheel 108, and drives the first rotating shaft 105 to rotate rapidly through the second synchronous wheel 110, and drives the fan blade 111 to rotate rapidly through the first rotating shaft 105, and the water vapor inside the sealing cover 201 is sucked into the connecting pipe 202 through the metal tube 203. The sucked water vapor contacts the inner wall of the connecting pipe 202, condenses to form liquid and accumulates inside the connecting pipe 202. The water vapor entering the sealing cover 201 condenses into liquid and flows into the top of the supporting ring 205, and flows into the water collecting tank 207 along the cone groove 206, and enters the connecting pipe 202 through the guide pipe 204 to collect the evaporated liquid. The control motor 106 rotates the beaker 114 to the bottom of the discharge pipe 301 within the set time. At this time, the beaker 114 stops heating, the control motor 106 stops, and the electric push rod 307 pushes the extension plate 309 to slide along the inner wall of the first sliding hole 302. The extension plate 309 drives the cross sleeve 312 to slide downward along the cross shaft 310 through the first rotating sleeve 311. The cross sleeve 312 drives the liquid storage tank 313 and the rotating cover 314 to move through the positioning ring 341, drives the first connecting pipe 326 to move through the rotating cover 314, and drives the slider 328 to slide downward along the second sliding hole 303 through the first connecting pipe 326. When the cross sleeve 312 moves, it drives the multiple hollow rods 321 to move downward. At this time, the hollow rods 321 extend to the inside of the beaker 114. When the hollow rods 321 move downward, under the torsion of the torsion spring 319, the multiple hollow rods 321 are expanded outward with the cross shaft 310 as the center; When the slider 328 slides to the bottom of the second sliding hole 303, the bottom of the sliding rod 329 abuts against the feeding tube 301, and the sliding rod 329 slides upward along the slider 328, and the pressing rod 339 is driven to move by the sliding rod 329, and the extension rod 336 is driven to move by the pressing rod 339, and the extension rod 336 drives the tooth plate 335 to move. At this time, the spring 337 is compressed, and the second gear 334 is driven to rotate by the tooth plate 335, and the second gear 334 drives the sealing plate 332 to rotate through the connecting shaft 331. At this time, the sealing plate 332 releases the obstruction of the through hole 333, and the nitric acid solution with a mass fraction of 50% in the storage hopper 305 flows into the liquid storage tank 313 through the liquid guide tube 306, the second connecting tube 327, the sealing plug 330 and the first connecting tube 326. The nitric acid solution in the liquid storage tank 313 enters the hollow rod 321 through the infusion tube 315, and flows into the beaker 114 through the drainage hole 340; The cross shaft 310 is driven to rotate by the driving motor 308, the cross shaft 310 drives the cross sleeve 312 to rotate, the cross sleeve 312 drives the plurality of hollow rods 321 to rotate, the concentrated ink and the nitric acid solution in the beaker 114 are mixed and stirred by the hollow rods 321, when the cross shaft 310 rotates, the second bracket 324 is driven to rotate by the cross ring 323, and the middle part of the hollow rod 321 is driven to rotate by the second bracket 324, so as to improve the stability of the hollow rod 321 when rotating; After stirring, the electric push rod 307 drives the cross sleeve 312 to move upward through the extension plate 309, and drives the multiple hollow rods 321 to move through the cross sleeve 312. At this time, the bottoms of the multiple hollow rods 321 are squeezed by the roller shaft 325, and are close to the cross shaft 310 and stored in the discharge pipe 301. When the cross sleeve 312 moves, it drives the slider 328 to move upward. At this time, the slider 329 is out of contact with the discharge pipe 301. At this time, under the pulling force of the spring 337, the tooth plate 335 drives the second gear 334 to rotate in the opposite direction, and the through hole 333 on the sealing plug 330 is blocked by the sealing plate 332; The running time of the control motor 106 is timed, the control motor 106 drives the box 102 to rotate again, the time for the beaker 114 to rotate to the initial position is controlled, and the heating temperature of the electric furnace 113 is controlled in sections to perform microwave digestion. The digested ink obtained has a digestion program set as follows: heating from room temperature to 100°C for 5 minutes and keeping it warm for 5 minutes, then heating to 150°C for 5 minutes and keeping it warm for 5 minutes, then heating to 170°C for 5 minutes and keeping it warm for 5 minutes, and finally heating to 200°C for 10 minutes and keeping it warm for 20 minutes; The digested ink obtained is then filtered through a membrane filter to obtain a sample to be tested, and a graphite furnace atomic absorption spectrometer, a flame atomic absorption spectrometer and a hydride generation-atomic absorption spectrometer are used to determine the heavy metal concentrations in the sample to be tested. The graphite furnace atomic absorption spectrometer is used to detect Pb, Cd, Cr, Cu, Ni and Mn, the flame atomic absorption spectrometer is used to detect Zn and Fe, and the hydride generation-atomic absorption spectrometer is used to detect As, Hg and Se.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for determining heavy metals in cigarette packaging printing ink, comprising a rotating heating component (1), characterized in that: The rotary heating component (1) is used to drive the ink to rotate and heat it regularly. A sealing component (2) is installed on the top of the rotary heating component (1). The sealing component (2) is used to collect evaporated liquid generated during the heating process of the ink. A material adding and stirring component (3) is installed on the top of the sealing component (2). The material adding and stirring component (3) is used to add auxiliary liquid into the ink and stir the mixed liquid.

2. The heavy metal determination device for cigarette package printing ink according to claim 1, characterized in that: The rotary heating component (1) comprises a base (101), the top of the base (101) is rotatably connected to a box body (102), the top of the box body (102) is fixedly connected to a fixed shaft (104), the bottom of the fixed shaft (104) passes through the box body (102) and extends below it, the inner wall of the fixed shaft (104) is rotatably connected to a first rotating shaft (105), the bottom of the first rotating shaft (105) passes through the fixed shaft (104) and extends below it, the top of the base (101) is fixedly connected to a support frame (103), the support frame (103) is sleeved on the fixed shaft (104) and rotatably connected thereto, and the circumferential outer wall of the first rotating shaft (105) is fixedly connected to a fan blade (111).

3. The heavy metal determination device for cigarette package printing ink according to claim 2, characterized in that: A control motor (106) is fixedly connected to the top of the base (101); a first synchronous wheel (108) is fixedly connected to the output end of the control motor (106); a second synchronous wheel (110) is fixedly connected to the circumferential outer wall of the first rotating shaft (105); the first synchronous wheel (108) and the second synchronous wheel (110) are connected via a synchronous belt transmission; a first gear (109) is fixedly connected to the output end of the control motor (106); an inner gear ring (107) is fixedly connected to the inner wall of the housing (102); and the first gear (109) meshes with the inner gear ring (107).

4. The heavy metal determination device for cigarette package printing ink according to claim 3, characterized in that: A hydraulic cylinder (112) is fixedly connected to the top of the box body (102), an output end of the hydraulic cylinder (112) is fixedly connected to an electric furnace (113), a beaker (114) is detachably mounted on the inner wall of the electric furnace (113), a curved surface (115) is provided at the port of the beaker (114), and a sealing groove (116) is provided on the outer wall of the beaker (114).

5. The heavy metal determination device for cigarette package printing ink according to claim 4, characterized in that: The sealing assembly (2) comprises a sealing cover (201), the inner wall of the sealing cover (201) is sleeved with a connecting pipe (202), the top of the first rotating shaft (105) extends into the connecting pipe (202) and is rotatably connected thereto, the fan blade (111) is located inside the connecting pipe (202), the outer wall of the connecting pipe (202) is fixedly connected to a drainage pipe (211), the circumferential outer wall of the drainage pipe (211) is fixedly connected to a valve (212), and the circumferential outer wall of the sealing cover (201) is fixedly connected to a plurality of metal pipes (203), and the ends of the metal pipes (203) are respectively fixedly connected to the sealing cover (201).

6. The heavy metal determination device for cigarette package printing ink according to claim 5, characterized in that: The bottom of the sealing cover (201) is rotatably connected to a first support ring (213) and a second support ring (214), a support ring (205) is fixedly connected between the first support ring (213) and the second support ring (214), a cone groove (206) is provided on the top of the support ring (205), a water collecting groove (207) is provided on the top of the support ring (205), and the water collecting groove (207) is connected to the lower end of the cone groove (206); The top of the support ring (205) is provided with an insertion hole (210), the bottom of the support ring (205) is fixedly connected to a fixing ring (208) by bolts, and a sealing ring (209) is clamped between the fixing ring (208) and the support ring (205); A plurality of flow guide tubes (204) are fixedly connected to the inner wall of the first branch ring (213), and ends of the flow guide tubes (204) are respectively fixedly connected to the connecting tubes (202).

7. The heavy metal determination device for cigarette package printing ink according to claim 6, characterized in that: The material adding and stirring assembly (3) comprises a feed tube (301), the bottom of the feed tube (301) is fixedly connected to the sealing cover (201), the outer wall of the feed tube (301) is provided with a second sliding hole (303), the circumferential outer wall of the feed tube (301) is fixedly connected to a mounting ring (304), the outer wall of the mounting ring (304) is fixedly connected to a storage hopper (305), the top of the storage hopper (305) is an open structure and is buckled with a hopper cover, and the bottom of the storage hopper (305) is fixedly connected to a liquid guide tube (306); The inner wall of the second sliding hole (303) is slidably connected to a sliding block (328), the outer wall of the sliding block (328) is respectively fixedly connected to a first connecting tube (326) and a second connecting tube (327), and the end of the second connecting tube (327) is fixedly connected to the liquid guiding tube (306); The inner wall of the slider (328) is fixedly connected to a sealing plug (330), a through hole (333) is provided at the bottom of the sealing plug (330), the inner wall of the sealing plug (330) is rotatably connected to a connecting shaft (331), one end of the connecting shaft (331) close to the second connecting pipe (327) is fixedly connected to a sealing plate (332), both ends of the sealing plate (332) are arc-shaped structures, the outer circumferential wall of the connecting shaft (331) is fixedly connected to a second gear (334), the inner wall of the sealing plug (330) is fixedly connected to a pressing block (338), the inner wall of the pressing block (338) is slidably connected to an extension rod (336), and the extension rod (336) is slidably connected to the inner wall of the pressing block (338). 36) A spring (337) is sleeved on the circumferential outer wall, the bottom of the extension rod (336) is fixedly connected to a tooth plate (335), the tooth plate (335) is meshed with the second gear (334), the top of the extension rod (336) is fixedly connected to a pressure rod (339), the top of the pressure rod (339) is fixedly connected to a slide rod (329), the end of the slide rod (329) passes through the slider (328) and is slidably connected thereto, the end of the slide rod (329) passes through the slider (328) and is slidably connected thereto, one end of the spring (337) is fixedly connected to the pressure block (338), and the other end of the spring (337) is fixedly connected to the tooth plate (335).

8. The heavy metal determination device for cigarette package printing ink according to claim 7, characterized in that: The outer wall of the feed tube (301) is provided with a first sliding hole (302), the inner wall of the mounting ring (304) is fixedly connected with an electric push rod (307), the output end of the electric push rod (307) is fixedly connected with an extension plate (309), and the end of the extension plate (309) passes through the first sliding hole (302) and is slidably connected thereto; The top of the feeding tube (301) is fixedly connected to a driving motor (308); the output end of the driving motor (308) passes through the feeding tube (301) and is rotatably connected thereto; the output end of the driving motor (308) is fixedly connected to a cross shaft (310); the circumferential outer wall of the cross shaft (310) is slidably connected to a cross sleeve (312); the circumferential outer wall of the feeding tube (301) is rotatably connected to a first rotating sleeve (311); the outer wall of the first rotating sleeve (311) is fixedly connected to the extension plate (309); The outer circumferential wall of the cross sleeve (312) is fixedly connected to a positioning ring (341), the outer circumferential wall of the positioning ring (341) is fixedly connected to a liquid storage tank (313), the inner wall of the liquid storage tank (313) is rotatably connected to a rotating cover (314), and the inner wall of the rotating cover (314) is fixedly connected to the first connecting pipe (326); A plurality of infusion tubes (315) are fixedly connected to the bottom of the liquid storage tank (313); A plurality of first brackets (316) are fixedly connected to the circumferential outer wall of the cross sleeve (312); a tube sleeve (320) is provided on the inner wall of each of the first brackets (316); two second rotating shafts (317) are fixedly connected to the outer wall of each of the tube sleeves (320); the ends of the second rotating shafts (317) respectively penetrate the first brackets (316) and are rotatably connected thereto; torsion springs (319) are sleeved on both ends of the second rotating shafts (317); both ends of the second rotating shafts (317) are fixedly connected to limiting sleeves (318); a hollow rod (321) is fixedly connected to the inner wall of each of the tube sleeves (320); the hollow rods (321) are respectively fixedly connected to corresponding infusion tubes (315); a plurality of drainage holes (340) are provided on the outer wall of the hollow rod (321); one end of the torsion spring (319) is fixedly connected to the limiting sleeve (318); and the other end of the torsion spring (319) is fixedly connected to the first bracket (316).

9. The device for measuring heavy metals in cigarette packaging printing ink according to claim 8, characterized in that: The inner wall of the discharge tube (301) is rotatably connected to a second rotating sleeve (322), the inner wall of the second rotating sleeve (322) is fixedly connected to a plurality of second brackets (324), the outer wall of the cross shaft (310) is fixedly connected to a cross ring (323), the outer walls of the cross ring (323) are respectively fixedly connected to the plurality of second brackets (324), the inner walls of the second brackets (324) are rotatably connected to rollers (325), and the outer walls of the hollow rod (321) are respectively in sliding contact with the outer walls of the corresponding rollers (325).

10. A method for measuring heavy metals in cigarette printing ink, applicable to the cigarette printing ink heavy metal measuring device according to claim 9, characterized in that: The following steps are involved: S1. Add the ink to be tested into the beaker (114), add an appropriate amount of nitric acid solution into the storage hopper (305), install the beaker (114) on the electric furnace (113), push the beaker (114) upward by the hydraulic cylinder (112), insert the end of the beaker (114) into the inside of the socket (210), make the sealing ring (209) fit into the sealing groove (116) on the outer wall of the beaker (114), and seal the gap between the beaker (114) and the support ring (205); S2, timing the operation time of the control motor (106), controlling the time required for the beaker (114) to rotate to the bottom of the discharge pipe (301), controlling the motor (106) to drive the first gear (109) to rotate, driving the inner gear ring (107) to rotate through the first gear (109), driving the box (102) to rotate through the inner gear ring (107), driving the beaker (114) to rotate through the box (102), setting the heating temperature of the electric furnace (113), and starting the electric furnace (113) to start heating while the beaker (114) rotates; S3, when the beaker (114) rotates, the supporting ring (205) is driven to rotate, and the first support ring (213) and the second support ring (214) are driven to rotate through the supporting ring (205). When the supporting ring (205) rotates, the control motor (106) drives the second synchronous wheel (110) to rotate through the first synchronous wheel (108), and drives the first rotating shaft (105) to rotate rapidly through the second synchronous wheel (110), and drives the fan blade (111) to rotate rapidly through the first rotating shaft (105). The pipe (203) draws water vapor inside the sealing cover (201) into the connecting pipe (202); the drawn water vapor contacts the inner wall of the connecting pipe (202), condenses to form liquid and accumulates inside the connecting pipe (202); the water vapor entering the sealing cover (201) condenses into liquid and flows into the top of the support ring (205), flows into the water collecting tank (207) along the conical groove (206), and enters the connecting pipe (202) through the guide pipe (204), so that the evaporated liquid is collected; S4, the control motor (106) rotates the beaker (114) to below the discharge tube (301) within a set time, at which time the beaker (114) stops heating, the control motor (106) stops, the electric push rod (307) pushes the extension plate (309) to slide along the inner wall of the first sliding hole (302), the extension plate (309) drives the cross sleeve (312) to slide downward along the cross shaft (310) through the first rotating sleeve (311), and the cross sleeve (312) drives the liquid storage tank (313) and the rotating shaft (310) through the positioning ring (341). The cover (314) moves, and the first connecting tube (326) moves by rotating the cover (314), and the slider (328) slides downward along the second sliding hole (303) by the first connecting tube (326). When the cross sleeve (312) moves, the plurality of hollow rods (321) move downward, and at this time, the hollow rods (321) extend to the inside of the beaker (114). When the hollow rods (321) move downward, under the torsion of the torsion spring (319), the plurality of hollow rods (321) spread outward with the cross shaft (310) as the center. S5. When the slider (328) slides to the bottom of the second slide hole (303), the bottom of the slide rod (329) abuts against the feed tube (301), and the slide rod (329) slides upward along the slider (328), and the slide rod (329) drives the pressure rod (339) to move, and the pressure rod (339) drives the extension rod (336) to move, and the extension rod (336) drives the tooth plate (335) to move. At this time, the spring (337) is compressed, and the tooth plate (335) drives the second gear (334) to rotate, and the second gear (334) is driven to rotate. 4) The sealing plate (332) is driven to rotate by the connecting shaft (331), and the sealing plate (332) releases the obstruction to the through hole (333), and the nitric acid solution in the storage hopper (305) flows into the liquid storage tank (313) through the liquid guide tube (306), the second connecting tube (327), the sealing plug (330) and the first connecting tube (326), and the nitric acid solution in the liquid storage tank (313) enters the hollow rod (321) through the liquid infusion tube (315), and flows into the beaker (114) through the liquid discharge hole (340); S6. The cross shaft (310) is driven to rotate by a driving motor (308), the cross shaft (310) is driven to rotate the cross sleeve (312), the cross sleeve (312) is driven to rotate the plurality of hollow rods (321), the concentrated ink and the nitric acid solution in the beaker (114) are mixed and stirred by the hollow rods (321), the second bracket (324) is driven to rotate by the cross ring (323) when the cross shaft (310) rotates, the middle part of the hollow rod (321) is driven to rotate by the second bracket (324), and the stability of the hollow rod (321) during rotation is improved; S7. After stirring, the electric push rod (307) drives the cross sleeve (312) to move upward through the extension plate (309), and drives the multiple hollow rods (321) to move through the cross sleeve (312). At this time, the bottoms of the multiple hollow rods (321) are squeezed by the roller shaft (325), and are close to the cross shaft (310) and stored in the discharge tube (301). When the cross sleeve (312) moves, it drives the slider (328) to move upward. At this time, the slider (329) is separated from the contact with the discharge tube (301). At this time, under the pulling force of the spring (337), the tooth plate (335) pushes the second gear (334) to rotate in the opposite direction, and blocks the through hole (333) on the sealing plug (330) through the sealing plate (332); S8, timing the operation time of the control motor (106), controlling the motor (106) to drive the box (102) to rotate again, controlling the time for the beaker (114) to rotate to the initial position, and at the same time controlling the heating temperature of the electric furnace (113) in sections, performing microwave digestion, and obtaining digested ink.

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