A handheld sample information machine

Abstract

This invention relates to the field of information acquisition device technology, specifically a handheld sample information printer, comprising a main body of an inkjet printer, a display screen and a coding nozzle mounted on the outer side of the main body, and a positioning component for positioning the coding position of a packaging carton on the outer side of the main body. The positioning component includes a horizontal frame with one end movably penetrating through the main body of the inkjet printer, a vent groove penetrating through the top of the horizontal frame, an opening on one side of the horizontal frame, and a sealing plug movably penetrating into one end of the horizontal frame. A partition component for separating the internal space of the horizontal frame is provided on one side of the main body of the inkjet printer, and a spring is fixedly connected to the end of the horizontal frame away from the sealing plug. The partition component includes a partition plate slidably connected to the inner wall of the horizontal frame, and a slider is provided on one side of the partition plate. This invention solves the problem of difficulty in positioning packaging cars during movement and reduces the degree of misalignment in sample information coding.

Description

Technical Field

[0001] This invention relates to the field of information acquisition device technology, specifically a handheld sample information machine. Background Technology

[0002] In routine testing and sampling, samplers will encounter various types of samples and need to fill out sample information forms or write sample information on the samples.

[0003] A search revealed that patent application number CN201720979625.6 discloses a handheld terminal for collecting sample information. The terminal uses a central processing unit to standardize sample information, forming electronic tags corresponding to the samples, which can be printed out to avoid damage or invalidation of the collected information.

[0004] However, the aforementioned device requires collecting information from a large number of samples and then printing the information labels onto the moving packaging cartons on the conveyor belt. Handheld sample collection devices are difficult to keep in sync with the packaging cartons on the conveyor belt, making it inconvenient to position the cartons. This results in inconsistent printing positions on the cartons, easily leading to significant misalignment of the printing positions. When it is necessary to read the information on a large number of packaging cartons, it is also necessary to find the printing position, which increases the difficulty of information reading. Therefore, a device is needed that can position the packaging cartons during the movement process to reduce the degree of misalignment of sample information printing. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a handheld sample information machine that solves the problem of difficulty in positioning packaging cartons during movement and reduces the degree of misalignment in sample information coding.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a handheld sample information machine, comprising a coding machine body, a display screen and a coding nozzle mounted on the outside of the coding machine body, and a positioning component for positioning the coding position of a packaging carton mounted on the outside of the coding machine body;

[0007] The positioning component includes a horizontal frame that extends through the main body of the inkjet printer at one end. A vent groove is provided at the top of the horizontal frame that extends through the horizontal frame. The horizontal frame has an opening on one side. A sealing plug that extends through the horizontal frame is provided at one end of the horizontal frame. A partition component for separating the internal space of the horizontal frame is provided on one side of the main body of the inkjet printer. A spring is fixedly connected to the end of the horizontal frame away from the sealing plug.

[0008] Preferably, the partition assembly includes a partition plate that is slidably connected to the inner wall of the transverse frame. A slider is provided on one side of the partition plate, with one end extending movably to the outside of the transverse frame. A mounting plate is fixedly connected to the end of the slider away from the partition plate. A first bolt for fixing the mounting plate to the main body of the inkjet printer is connected to one side of the mounting plate.

[0009] Preferably, a bracket is fixedly connected to the side of the partition plate near the sealing plug, and a rotating rod is provided between the two sides of the bracket, with both ends extending movably to the outside of the bracket. A rubber wheel that abuts against the inner wall of the transverse frame is fixedly connected to the middle of the rotating rod, and cleaning wheels for cleaning dust on the bottom inner side of the transverse frame are fixedly connected to both ends of the rotating rod.

[0010] Preferably, the bottom of the horizontal frame is provided with a material holding box that extends movably into the interior, and curved plates are fixedly connected to both sides of the material holding box.

[0011] Preferably, a take-up box with an opening on one side is fixedly connected to one side of the main body of the inkjet printer. A winding rod is rotatably connected between the two sides of the inner wall of the take-up box. A torsion spring is fixedly connected between the bottom of the winding rod and the take-up box. A plastic film for covering the opening at one end of the horizontal frame is fixedly connected to the outer side of the winding rod. A circular plate fixed to the winding rod is installed between the plastic film and the torsion spring.

[0012] Preferably, the end of the transverse frame away from the sealing plug is provided with a clamp for fixing the plastic film to the transverse frame. Both ends of the clamp are provided with a second bolt that extends movably into the interior of the transverse frame. The clamp is provided with a through hole that matches the second bolt. A guide rod for guiding the movement direction of the plastic film is fixedly connected to one side of the inkjet printer body.

[0013] Preferably, the top of the inkjet printer body is equipped with a dehumidification component for reducing the moisture content in the air inside. The dehumidification component includes a sealing cover with one end extending into the interior of the inkjet printer body and communicating with the ventilation groove of the horizontal frame. Horizontal bars are fixedly connected to both sides of the inner wall of the sealing cover. A water storage box is fixedly connected between the two horizontal bars. A metal rod is fixedly connected between the water storage box and the sealing cover. Multiple inclined fins are fixedly connected to the top end of the metal rod.

[0014] Preferably, the bottom of the water storage box is connected to a hose, one end of which extends movably to the outside of the sealing cover, and the end of the transverse frame near the sealing plug is connected to a connecting pipe adapted to the hose.

[0015] Compared with the prior art, the present invention provides a handheld sample information device, which has the following beneficial effects:

[0016] 1. The positioning components can be set to position the packaging carton during movement, reducing the degree of misalignment of sample information coding and making it easier to view the sample information on the packaging carton.

[0017] 2. By using the set separation components, the dust content in the surrounding air is reduced during the coding position positioning process, thus optimizing the air quality of the working environment.

[0018] 3. The dehumidification components can reduce the heat generated during the operation of the inkjet printer, maintain stable operation of the inkjet printer, and reduce the moisture content of the air inside the inkjet printer, thus reducing the possibility of rust on internal parts in a humid environment. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the positioning component of the present invention;

[0022] Figure 3 This is a partial cross-sectional view of the positioning component of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the separator component of the present invention;

[0024] Figure 5 This is a partial cross-sectional view of the dehumidification component of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the winding box and clamping plate of the present invention;

[0026] Figure 7 This is a partial cross-sectional view of the winding box and clamping plate of the present invention.

[0027] In the diagram: 1. Main body of the inkjet printer; 2. Positioning assembly; 21. Horizontal frame; 22. Sealing plug; 23. Separator assembly; 231. Separator plate; 232. Slider; 233. Mounting plate; 234. First bolt; 24. Spring; 3. Bracket; 4. Rotating rod; 5. Rubber wheel; 6. Cleaning wheel; 7. Material box; 8. Arc plate; 9. Rewinding box; 10. Winding rod; 11. Torsion spring; 12. Plastic film; 13. Round plate; 14. Clamping plate; 15. Second bolt; 16. Guide rod; 17. Dehumidification assembly; 171. Sealing cover; 172. Crossbar; 173. Water storage box; 174. Metal rod; 175. Inclined fins; 18. Hose; 19. Connecting pipe. Detailed Implementation

[0028] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0029] Example 1

[0030] Figures 1-4 In one embodiment of the present invention, a handheld sample information machine includes a coding machine body 1, a display screen and a coding nozzle mounted on the outside of the coding machine body 1, and a positioning component 2 for positioning the coding position of a packaging carton. The packaging carton is transported by a belt conveyor. The coding machine body 1 is pre-set with the information input format. The operator inputs the sample information from the display screen on one side of the coding machine body 1, then moves the coding machine body 1 to the front of the packaging carton, places the sample inside the packaging carton, and positions the coding position of the packaging carton moving on the belt conveyor using the positioning component 2. The coding nozzle prints the product information on the packaging carton and generates a QR code. The complete sample information can be displayed by scanning the QR code with a mobile phone-specific QR code query software. This method is convenient, fast, and has a low error rate for batch labeling of sample information.

[0031] The positioning component 2 includes a horizontal frame 21 that extends through the main body 1 of the inkjet printer at one end. A ventilation groove is provided at the top of the horizontal frame 21, extending through it. One side of the horizontal frame 21 is open, and a sealing plug 22 extends through it to one end. A partition component 23 is provided on one side of the main body 1 to separate the internal space of the horizontal frame 21. A spring 24 is fixedly connected to the end of the horizontal frame 21 away from the sealing plug 22, pressing the sealing plug 22 into the interior of the horizontal frame 21 to increase the firmness of the connection between the sealing plug 22 and the horizontal frame 21. After the sample information is entered into the main body 1 of the inkjet printer from the display screen, the operator moves the main body 1 by holding its bottom and moves it close to a packaging carton on the belt conveyor. The sample is placed into the packaging carton. As the packaging carton is transported by the belt conveyor, it pushes the sealing plug 22, which in turn moves the horizontal frame 21. The horizontal frame pushes the spring 24 as it moves towards the sealing plug 22. Spring 24 compresses the separating component 23, causing spring 24 to contract. As the packaging carton pushes the transverse frame 21, the degree of compression of spring 24 increases. Eventually, the elastic force of spring 24 exceeds the friction between the packaging carton and the belt conveyor. The packaging carton is blocked by the sealing plug 22, and the speed of the belt conveyor begins to decrease, causing relative movement between the packaging carton and the belt conveyor. At this time, the operator controls the inkjet printer body 1 to spray code onto the packaging carton from the inkjet nozzle. After the coding is completed, the inkjet printer body 1 is moved away from the packaging carton. After the packaging carton is no longer blocked by the sealing plug 22, it continues to move with the belt conveyor. Spring 24 pushes the transverse frame 21 to move away from the sealing plug 22 to the starting point. This process is repeated to complete the coding process on the surface of each packaging carton transported on the belt conveyor. This can locate the packaging carton during the movement, reduce the misalignment of the sample information coding, and facilitate the viewing of sample information on the packaging carton.

[0032] When the sealing plug 22 blocks the packaging carton on the belt conveyor, the packaging carton pushes the sealing plug 22 and the transverse frame 21 to compress the spring 24. As the degree of compression of the spring 24 increases, the force pushing the transverse frame 21 and the sealing plug 22 to block the packaging carton also gradually increases. When positioning the coding position of the packaging carton, the force of blocking the packaging carton can be controlled to gradually increase from small to large, reducing the collision force between the packaging carton and the moving packaging carton when positioning, and reducing the damage to the packaging carton.

[0033] The separator assembly 23 includes a separator plate 231 that is slidably connected to the inner wall of the transverse frame 21. A slider 232 is provided on one side of the separator plate 231, with one end extending movably to the outside of the transverse frame 21. A mounting plate 233 is fixedly connected to the end of the slider 232 away from the separator plate 231. A first bolt 234 for fixing the mounting plate 233 to the inkjet printer body 1 is connected to one side of the mounting plate 233. When the separator assembly 23 is installed inside the transverse frame 21, the sealing plug 22 is first removed from inside the transverse frame 21, and then removed from the transverse frame 21 without the sealing plug 22. Insert the partition plate 231 into the transverse frame 21 through the opening, and push the partition plate 231 to slide along the inner wall of the transverse frame 21 until the mounting plate 233 presses against the inkjet printer body 1. Turn the first bolt 234, and the first bolt 234 moves towards the inkjet printer body 1 until the first bolt 234 enters the inkjet printer body 1. Then fix the mounting plate 233 on the inkjet printer body 1. Then insert the sealing plug 22 into the transverse frame 21. When the packaging carton moving on the belt conveyor pushes the transverse frame 21 to move, the interior of the transverse frame 21 is located at... As the space between the partition plate 231 and the sealing plug 22 gradually increases, the air pressure in this area decreases. Due to the pressure difference, air from outside the horizontal frame 21 enters the area between the partition plate 231 and the sealing plug 22 inside the horizontal frame 21. Since cardboard boxes easily generate debris, the dust content in the working area is high. When air enters the horizontal frame 21, some dust enters the horizontal frame 21 along with the air. After the coding is completed, the main body 1 of the inkjet printer is moved away from the packaging cardboard box. When there is no packaging cardboard box to push the sealing plug 22 and the horizontal frame 21, the spring 24 pushes the horizontal frame 21 to the starting point. At this time, the space between the partition plate 231 and the sealing plug 22 inside the horizontal frame 21 decreases. The air between the partition plate 231 and the sealing plug 22 inside the horizontal frame 21 is pushed to the outside of the horizontal frame 21. Some of the dust that entered the horizontal frame 21 with the air moves to the outside of the horizontal frame 21 and settles at the bottom of the horizontal frame 21. By using the process of positioning the coding position, the dust content in the surrounding air is reduced, and the air quality of the working environment is optimized.

[0034] A bracket 3 is fixedly connected to the side of the partition plate 231 near the sealing plug 22. A rotating rod 4, with both ends extending movably outwards from the bracket 3, is provided between the two sides of the bracket 3. A rubber wheel 5, which abuts against the inner wall of the transverse frame 21, is fixedly connected to the middle of the rotating rod 4. Cleaning wheels 6, used for cleaning dust from the bottom inner side of the transverse frame 21, are fixedly connected to both ends of the rotating rod 4. A material collection box 7, with one end extending movably into its interior, is provided at the bottom of the transverse frame 21. Arc-shaped plates 8 are fixedly connected to both sides of the material collection box 7. As the packaging carton on the belt conveyor pushes the sealing plug 22 and the transverse frame 21 to move, the transverse frame 21 moves towards the sealing plug 22, and the partition plate 231 moves relative to the transverse frame 21, causing the rubber wheel 5 to move along the transverse frame 21. The rollers roll towards the bottom inside the frame 21, which in turn drives the cleaning wheel 6 to move along the bottom of the horizontal frame 21. Dust in the air enters the area between the partition plate 231 and the sealing plug 22 from the opening of the horizontal frame 21. When the inkjet printer body 1 is moved away from the packaging carton after the inkjet printing is finished, the spring 24 pushes the horizontal frame 21 to move back to the initial point. The cleaning wheel 6 pushes the dust inside the horizontal frame 21 towards the sealing plug 22. Finally, the dust between the partition plate 231 and the sealing plug 22 falls into the material collection box 7. The probability of the dust entering the material collection box 7 being carried to the outside of the horizontal frame 21 by the air flowing inside the horizontal frame 21 is reduced. This allows for the collection of a larger amount of dust in the air and improves the ability to remove dust from the surrounding environment.

[0035] When there is a lot of dust inside the container 7, press down on the arc plate 8 from below to move the container 7 towards the bottom of the horizontal frame 21 until the container 7 is completely moved outside the horizontal frame 21, pour out the dust inside the container 7, and then push the container 7 back into the horizontal frame 21. The arc plate 8 makes it easy to remove the container 7 from inside the horizontal frame 21, making it easy to collect and centrally process the dust in the surrounding environment.

[0036] Example 2

[0037] Reference Figures 1-7Based on Embodiment 1, a take-up box 9 with an opening on one side is fixedly connected to one side of the main body 1 of the inkjet printer. A winding rod 10 is rotatably connected between the two sides of the inner wall of the take-up box 9. A torsion spring 11 is fixedly connected between the bottom of the winding rod 10 and the take-up box 9. A plastic film 12 for covering the opening at one end of the transverse frame 21 is fixedly connected to the outside of the winding rod 10. A circular plate 13 fixed to the winding rod 10 is installed between the plastic film 12 and the torsion spring 11. After the plastic film 12 is pulled out from the inside of the take-up box 9, it is fixed to the end of the transverse frame 21 away from the sealing plug 22. After the opening at the end of the transverse frame 21 away from the sealing plug 22 is covered by the plastic film 12, dust cannot enter, thus preventing dust from the surrounding environment from entering the end of the transverse frame 21 away from the sealing plug 22. To prevent dust from adhering to the spring 24 and the inner wall of the transverse frame 21 and becoming difficult to clean, when the packaging carton on the belt conveyor pushes the transverse frame 21 towards the sealing plug 22, the distance between the end of the transverse frame 21 away from the sealing plug 22 and the winding box 9 is shortened. The torsion spring 11 drives the winding rod 10 to rotate and wind the plastic film 12 onto the winding rod 10. When the spring 24 pushes the transverse frame 21 towards the starting point, the distance between the end of the transverse frame 21 away from the sealing plug 22 and the winding box 9 increases. The plastic film 12 pulls the winding rod 10 to rotate and causes the torsion spring 11 to twist. The plastic film 12 on the winding rod 10 is pulled to move away from the inkjet printer body 1, keeping the plastic film 12 always covering the opening of the transverse frame 21 away from the sealing plug 22.

[0038] A clamping plate 14 for fixing the plastic film 12 to the horizontal frame 21 is provided at one end away from the sealing plug 22. Both ends of the clamping plate 14 are provided with a second bolt 15 that extends into the horizontal frame 21. The clamping plate 14 has a through hole that matches the second bolt 15. A guide rod 16 for guiding the movement direction of the plastic film 12 is fixedly connected to one side of the inkjet printer body 1. Rotating the second bolt 15 away from the horizontal frame 21 moves the clamping plate 14 away from the horizontal frame 21, inserting the end of the plastic film 12 away from the winding box 9 into the gap between the clamping plate 14 and the horizontal frame 21. Then, rotating the second bolt 15 into the horizontal frame 21 moves the clamping plate 14 to squeeze the plastic film 12, fixing the plastic film 12 to the horizontal frame 21, which is convenient for fixing the plastic film 12.

[0039] A dehumidification assembly 17 for reducing the moisture content of the air inside the inkjet printer body 1 is installed on the top. The dehumidification assembly 17 includes a sealing cover 171 with one end extending into the inkjet printer body 1 and communicating with the ventilation groove of the transverse frame 21. Horizontal bars 172 are fixedly connected to both sides of the inner wall of the sealing cover 171. A water storage box 173 is fixedly connected between the two horizontal bars 172. A metal rod 174 is fixedly connected between the water storage box 173 and the sealing cover 171. Multiple inclined fins 175 are fixedly connected to the top end of the metal rod 174. The ventilation groove of the transverse frame 21 remains inside the inkjet printer body 1 as the transverse frame 21 moves. The heat generated during the operation of the inkjet printer body 1 raises the temperature of the air inside. The heated air enters the sealing cover 171 and reacts with the cooler metal... When rod 174 and inclined fin 175 come into contact, the air is cooled, and the moisture inside condenses on the surface of metal rod 174 and inclined fin 175. The condensed water droplets slide down the inclined fin 175 and metal rod 174 into the water storage box 173. Because metal rod 174 and inclined fin 175 dissipate heat quickly and are far from the main body of the inkjet printer 1, their surface temperature is lower than the internal temperature of the main body of the inkjet printer 1. This allows the heat generated by the main body of the inkjet printer 1 during operation to be cooled as it moves with the air around metal rod 174 and inclined fin 175. This reduces the heat generated by the main body of the inkjet printer 1 during operation, maintains stable operation of the main body of the inkjet printer 1, and reduces the moisture content of the air inside the main body of the inkjet printer 1, reducing the possibility of rust on internal parts of the main body of the inkjet printer 1 in a humid environment.

[0040] A flexible hose 18 is connected to the bottom of the water storage box 173. One end of the hose 18 extends movably to the outside of the sealing cover 171. A connecting pipe 19, compatible with the hose 18, is connected to the end of the horizontal frame 21 near the sealing plug 22. Normally, a rubber stopper is used to plug the hose 18 and the connecting pipe 19. Periodically, the rubber stopper inside the hose 18 and the connecting pipe 19 is removed, and then the hose 18 is fitted over the connecting pipe 19. Water condensed inside the water storage box 173 flows along the hose 18 and the connecting pipe 19 into the horizontal frame 21, washing away dust inside the horizontal frame 21 and increasing the humidity inside the horizontal frame 21. This reduces the possibility of dust being carried by the air and causing dust to be stirred up. The air flowing inside the horizontal frame 21 passes through... The connecting pipe 19 and the hose 18 flow into the sealing cover 171, increasing the airflow speed around the sealing cover 171, the metal rod 174, and the inclined fins 175. This accelerates the evaporation rate of moisture on the surfaces of the sealing cover 171, the metal rod 174, and the inclined fins 175, allowing air with a higher air content to be carried out from the hose 18 to the outside of the inkjet printer body 1. Then, the hose 18 is disconnected from the connecting pipe 19, and the hose 18 and the connecting pipe 19 are re-plugged with rubber plugs. This drains the water condensed inside the inkjet printer body 1 and accelerates the evaporation of the condensate. It also removes the air with a high moisture content caused by the evaporation of the condensate, preventing the water condensed inside the inkjet printer body 1 from spilling onto the internal parts, thus improving the dehumidification effect inside the inkjet printer body 1.

[0041] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handheld sample information machine, comprising a coding machine body (1), wherein a display screen and a coding nozzle are mounted on the outside of the coding machine body (1), characterized in that: The outer side of the inkjet printer body (1) is equipped with a positioning component (2) for positioning the inkjet printing position of the packaging carton. The positioning component (2) includes a horizontal frame (21) that extends through the main body (1) of the inkjet printer. The top of the horizontal frame (21) is provided with a ventilation groove that extends through the horizontal frame (21). The horizontal frame (21) has an opening on one side. A sealing plug (22) that extends through the horizontal frame (21) is provided at one end of the horizontal frame (21). A partition component (23) for separating the internal space of the horizontal frame (21) is provided on one side of the main body (1). A spring (24) is fixedly connected to the end of the horizontal frame (21) away from the sealing plug (22). The partition assembly (23) includes a partition plate (231) that is slidably connected to the inner wall of the transverse frame (21). A slider (232) is provided on one side of the partition plate (231) with one end extending movably to the outside of the transverse frame (21). A mounting plate (233) is fixedly connected to one end of the slider (232) away from the partition plate (231). A first bolt (234) for fixing it to the inkjet printer body (1) is connected to one side of the mounting plate (233). A bracket (3) is fixedly connected to the side of the partition plate (231) near the sealing plug (22). A rotating rod (4) with both ends extending to the outside of the bracket (3) is provided between the two sides of the bracket (3). A rubber wheel (5) that abuts against the inner wall of the transverse frame (21) is fixedly connected to the middle of the rotating rod (4). A cleaning wheel (6) for cleaning dust at the bottom of the inner side of the transverse frame (21) is fixedly connected to both ends of the rotating rod (4).

2. The handheld sample information device according to claim 1, characterized in that: The bottom of the horizontal frame (21) is provided with a material container (7) that extends movably into its interior, and curved plates (8) are fixedly connected to both sides of the material container (7).

3. A handheld sample information device according to claim 1, characterized in that: The main body (1) of the inkjet printer is fixedly connected to a winding box (9) with an opening on one side. A winding rod (10) is rotatably connected between the two sides of the inner wall of the winding box (9). A torsion spring (11) is fixedly connected between the bottom of the winding rod (10) and the winding box (9). A plastic film (12) for covering the opening at one end of the horizontal frame (21) is fixedly connected to the outside of the winding rod (10). A circular plate (13) fixed to the winding rod (10) is installed between the plastic film (12) and the torsion spring (11).

4. A handheld sample information device according to claim 3, characterized in that: The horizontal frame (21) is provided with a clamp (14) for fixing the plastic film (12) on the horizontal frame (21) at one end away from the sealing plug (22). Both ends of the clamp (14) are provided with a second bolt (15) that extends into the horizontal frame (21) at one end. A guide rod (16) for guiding the movement direction of the plastic film (12) is fixedly connected to one side of the inkjet printer body (1).

5. A handheld sample information device according to claim 1, characterized in that: The top of the inkjet printer body (1) is equipped with a dehumidification component (17) for reducing the moisture content in the air inside. The dehumidification component (17) includes a sealing cover (171) that extends into the inkjet printer body (1) and communicates with the ventilation groove of the transverse frame (21). Horizontal bars (172) are fixedly connected to both sides of the inner wall of the sealing cover (171). A water storage box (173) is fixedly connected between the two horizontal bars (172). A metal rod (174) is fixedly connected between the water storage box (173) and the sealing cover (171). A plurality of inclined fins (175) are fixedly connected to one end of the top of the metal rod (174).

6. A handheld sample information device according to claim 5, characterized in that: The bottom of the water storage box (173) is connected to a hose (18), one end of which extends movably to the outside of the sealing cover (171), and the end of the transverse frame (21) near the sealing plug (22) is connected to a connecting pipe (19) that is compatible with the hose (18).

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