A desktop test tube labeling machine

Abstract

The utility model discloses a desktop formula test tube labeling machine, including buffer memory device, handling device, labeling device, tray storage device and tray transmission device, buffer memory device is used for buffering test tube, and buffer memory device is equipped with hopper, and the aperture of hopper's mouth is greater than the outer diameter of test tube's pipe cap, and the minimum aperture of hopper is slightly greater than the outer diameter of test tube's pipe cap, handling device is used for handling test tube located in buffer memory device to hopper, the entrance of labeling device is located just below hopper, and labeling device is used for test tube to label, tray storage device can supply tray and storage tray, tray transmission device, tray transmission device can transmit the tray that tray storage device supplies to just below the export of labeling device, and can transmit the tray located just below the export of labeling device to tray storage device and store. It can solve the problem that the existing test tube labeling machine cannot arrange the pipe by oneself, and also cannot classify and store the test tube that labels are completed.

Description

Technical Field

[0001] This utility model relates to the field of test tube preparation technology, specifically to a desktop test tube labeling machine. Background Technology

[0002] A test tube labeling machine is a machine that affixes labels to the surface of test tubes. The general workflow of existing test tube labeling machines is as follows: a batch of test tubes to be labeled are loaded into the test tube labeling machine, the machine identifies the position of the test tubes, then prepares an adhesive label, and then affixes the adhesive label to the body of each test tube in turn.

[0003] When using existing test tube labeling machines, the labeled test tubes cannot be discharged automatically and need to be manually removed, sorted, and stored. If the number of labeled test tubes is large, the manual workload for this action is extremely large and the efficiency is low.

[0004] Therefore, this application is hereby submitted. Summary of the Invention

[0005] The purpose of this invention is to provide a desktop test tube labeling machine that solves the problems of existing test tube labeling machines being unable to automatically arrange the tubes or classify and store the labeled test tubes.

[0006] This invention is achieved through the following technical solution: A desktop test tube labeling machine includes: a buffer device for buffering test tubes, the buffer device having a hopper, the orifice diameter of the hopper being larger than the outer diameter of the test tube cap, and the minimum orifice diameter of the hopper being slightly larger than the outer diameter of the test tube cap; a transport device for transporting test tubes located in the buffer device to the hopper; a labeling device having its inlet located directly below the hopper, and the labeling device for labeling the test tubes; a tray receiving device for supplying and receiving trays; and a tray conveying device for conveying the trays supplied by the tray receiving device to directly below the outlet of the labeling device, and for conveying the trays located directly below the outlet of the labeling device to the tray receiving device for storage.

[0007] In another preferred embodiment, the buffer device includes a buffer rack with a guide plate. The guide plate is inclined to form a loading side and a buffer side on its high and low sides, respectively. Multiple guide tracks extend from the loading side to the buffer side along the guide plate, penetrating the guide plate along its thickness. The width of each guide track is slightly larger than the outer diameter of the test tube body but smaller than the outer diameter of the test tube cap. The hopper is located on the portion of the guide plate on the buffer side. All the guide tracks on the buffer side are aligned on a straight line at one end and are also aligned with the opening of the hopper.

[0008] In another preferred embodiment, the guide plate is divided into multiple ribs by the guide slide, and a guide plate is provided parallel to each rib directly below it. The top surface of the guide plate is fixedly connected to the bottom surface of the corresponding rib by multiple connecting rods. The distance between any two adjacent guide plates is the same as the width of the guide slide sandwiched directly above.

[0009] In another preferred embodiment, the conveying device includes: a fixed frame, which is fixedly connected to the buffer frame and located on the buffer side; the fixed frame is horizontally provided with a translation rail, which is parallel to the line connecting the ends of all the guide slides located on the buffer side; the translation rail is slidably connected to a translation seat, which is provided with a translation force component, and the translation force component is fixedly connected to the fixed frame; and a lifting mechanism, which is located on the translation seat and includes a lifting seat and a lifting assembly, the lifting seat and the lifting mechanism being connected... A vertical sliding connection is provided, and the lifting assembly is used to raise or lower the lifting seat; a gripping mechanism is provided on the lifting seat and is used to grip the cap of the test tube; a positioning ruler is provided on the fixed frame and is arranged parallel to the translation rail, and the positioning ruler has multiple toothed pins spaced apart along its length, and the toothed pins correspond one-to-one with the guide slide; when the translation seat is aligned with any of the positioning teeth, the gripping mechanism is aligned with the corresponding guide slide and is located directly above the end of the corresponding guide slide near the buffer side.

[0010] In another preferred embodiment, the gripping mechanism includes a pair of gripping arms, the root of which is horizontally rotatably connected to the lifting seat. The lifting seat is provided with a synchronous drive assembly, which is respectively connected to the two gripping arms so that the tips of the two gripping arms can synchronously move closer or further away from each other. The tips of the gripping arms are provided with semi-hoops, and the two semi-hoops can hug each other. The semi-hoops are used to hold the cap of the test tube.

[0011] In another preferred embodiment, the lifting assembly includes a top roller, a bottom roller, and a transmission belt; the top roller and the bottom roller are respectively disposed at the upper and lower parts of the lifting mechanism, the top roller and the bottom roller are located in the same vertical plane and the same vertical line, the top roller or the bottom roller is drivenly connected to a lifting motor, and the lifting motor is fixedly connected to the lifting mechanism; the transmission belt is supported on the top roller and the bottom roller; the lifting seat is fixedly connected to the transmission belt.

[0012] In another preferred embodiment, the labeling device includes: a fixing mechanism, which includes a fixing frame and a pair of limiting semi-cylinders, the two limiting semi-cylinders being able to hug each other to form a fixing groove, the top and bottom ends of the fixing groove both penetrating the fixing mechanism, the fixing groove being located directly below the bottom end of the hopper, the fixing groove being used for vertically inserting test tubes; a rotating tube mechanism, which includes a plurality of vertically arranged rotating rollers and rotating roller motors, the rotating roller motors being drivenly connected to at least one of the rotating rollers, all the rotating rollers being arranged in a ring at intervals to form a rotating tube cavity, the rotating tube cavity being coaxially arranged with the fixing groove, so that the sidewall of the test tube in the fixing groove is in contact with all the rotating rollers; and a main printing mechanism, which is used for printing labels, the main printing mechanism having a label outlet, the label outlet being aligned and fitted with the sidewall of the rotating tube cavity, so that the label at the label outlet is in contact with the sidewall of the test tube in the rotating tube cavity.

[0013] In another preferred embodiment, one of the limiting semi-cylinders is fixedly connected to the fixing frame, and the other limiting semi-cylinder is slidably connected to the fixing frame; the fixing frame is slidably connected to a slide block, which is connected to the sliding limiting semi-cylinder via an elastic buffer assembly, and the sliding direction of the slide block is collinear with the sliding direction of the corresponding limiting semi-cylinder; the slide block is provided with a rack, which is parallel to the sliding direction of the slide block, and the rack meshes with a fixed gear, which is driven by a fixed motor, which is fixedly connected to the fixing frame; the rotating roller is rolled on the wall of the fixing groove; when the two limiting semi-cylinders are engaged, all the rotating rollers are parallel to the test tubes located in the fixing groove and are in contact with the side wall of the test tubes located in the fixing groove.

[0014] In another preferred embodiment, the pallet storage device includes: two stacking compartments, each with a stacking groove vertically extending from its bottom to form a pallet outlet; a plurality of pallets, the size of which matches the size of the stacking groove, the pallets being stackable vertically within the stacking groove, with the pallet outlets facing upwards; and two pallet dispensing mechanisms, each located at the pallet outlet of one of the stacking compartments and fixedly connected to the corresponding stacking compartment, each dispensing mechanism including a pair of limiting plates and a control component, the two limiting plates being symmetrically arranged at the pallet outlets. The stacking bin is located on opposite sides; the control component includes a pair of limit motors, which are fixedly connected to the stacking bin. Each limit motor corresponds to a limit plate, and the limit plate is fixedly connected to the output shaft of the corresponding limit motor, so that the limit plate can switch between a first state and a second state. When the limit plate is in the first state, the projection of the limit plate onto the outlet is located inside the outlet, and the top of the limit plate abuts against the bottommost pallet. When the limit plate is in the second state, the projection of the limit plate onto the outlet is located outside the outlet.

[0015] In another preferred embodiment, the pallet conveying device includes: a pair of conveyor belts, the two conveyor belts being arranged parallel to each other to form a lifting gap between the two conveyor belts; each conveyor belt having a tube loading position and a lifting position at its two ends; each conveyor belt having a pallet receiving position located between the tube loading position and the lifting position; the tube loading position being located directly below the fixing groove; and the lifting position and the pallet receiving position being located directly below the pallet outlets of the two stacking bins, respectively; all pallets being located in the stacking bins directly above the pallet receiving positions; and a lifting mechanism having a lifting platform located within the lifting gap and at the lifting position. Directly below, the lifting platform is used to lift the tray containing test tubes into the corresponding stacking bin, so that the tray is contained within the stacking bin by the corresponding tray unloading mechanism; the outer wall of the conveyor belt is vertically provided with baffles, the top of the baffles is set at a height higher than the top surface of the conveyor belt, and the distance between the two baffles is slightly larger than the size of the tray; the inner sides of the upper part of the two baffles are symmetrically provided with first positioning stops and second positioning stops; when the tray contacts the two first positioning stops, the tray is located in the tube loading position; when the tray contacts the two second positioning stops, the tray is located in the lifting position.

[0016] Because this utility model adopts the above-mentioned technical solution, it has the following positive effects compared with the prior art: This utility model discloses a desktop test tube labeling machine. It incorporates a buffer device to buffer and stack the produced test tubes. A hopper, a conveying device, and a labeling device are included. The conveying device places the buffered test tubes into the hopper, allowing them to fall into the inlet of the labeling device, where they are labeled. A tray storage device supplies trays for classifying and holding test tubes, and stores trays containing the classified test tubes. A tray conveying device transports the trays provided by the tray storage device to the outlet of the labeling device to hold the labeled test tubes. The tray conveying device then transports the trays containing the test tubes to the tray storage device for final storage. Through the coordination of these features, this desktop test tube labeling machine effectively solves the problems of existing test tube labeling machines that cannot automatically arrange the tubes or classify and store labeled test tubes. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 A schematic diagram of a desktop test tube labeling machine provided by this utility model; Figure 2 A schematic diagram of a buffer device for a desktop test tube labeling machine provided by this utility model; Figure 3 A schematic diagram of the handling device for a desktop test tube labeling machine provided by this utility model; Figure 4 A schematic diagram of the fixing mechanism and the rotating mechanism of the labeling device of a desktop test tube labeling machine provided by this utility model; Figure 5 A schematic diagram of the main printing mechanism of the labeling device of a desktop test tube labeling machine provided by this utility model; Figure 6 A schematic diagram of the auxiliary printer of the labeling device of a desktop test tube labeling machine provided by this utility model; Figure 7 A schematic diagram of a tray storage device for a desktop test tube labeling machine provided by this utility model; Figure 8 A schematic diagram of the stacking compartment of a tray storage device for a desktop test tube labeling machine provided by this utility model; Figure 9 A schematic diagram of the tray of a tray storage device for a desktop test tube labeling machine provided by this utility model; Figure 10 A schematic diagram of a tray transfer device for a desktop test tube labeling machine provided by this utility model; Figure 11 This is a schematic diagram of the lifting mechanism of the tray transfer device of a desktop test tube labeling machine provided by this utility model.

[0018] The attached diagram shows the markings and corresponding component names: 10-Buffer rack; 11-Guide plate; 111-Guide slide; 112-Rib; 113-Guide plate; 12-Baffle; 13-Base plate; 14-Upright plate; 15-Hopper; 16-First detector; 17-Second detector; 18-Identification beam; 181-Pipe cap seat; 1811-Flanged opening; 20-Fixing frame; 21-Transfer rail; 22-Transfer seat; 23-Lifting seat; 231-Monitoring plate; 2311- Third detector; 2312-Fourth detector; 24-Positioning ruler; 241-Toothed needle; 25-Grip arm; 251-Half hoop; 26-Top roller; 27-Bottom roller; 28-Transmission belt; 29-Lifting motor; 30-Fixed groove; 31-Rotating roller; 32-Fixed frame; 33-Limiting half-cylinder; 331-Rack; 332-Fixed gear; 34-Slide block; 35-Spring slide rod; 36-Edge-finding stop bar; 37-Fifth detector Device; 38-Main unit; 381-Main printer; 382-Main printing paper; 39-Secondary printer; 40-Stacking compartment; 401-Limit window; 402-Observation port; 41-Stacking slot; 411-Discharge port; 42-Pallet; 421-Belt; 43-Limit plate; 44-Limit motor; 441-Motor base; 45-Limit spring; 46-Receiving compartment; 50-Conveyor belt; 501-Pipe loading position; 502-Pattern 503 - Lifting position; 504 - Pipe picking conveyor belt; 505 - Buffer conveyor belt; 51 - Lifting platform; 511 - Slide bar; 512 - Lifting plate; 513 - Support plate; 514 - Fixed rod; 52 - Lifting motor; 53 - Lifting screw; 54 - Fixed frame; 55 - Baffle; 551 - First positioning stop bar; 552 - Second positioning stop bar; 553 - Beam plate; 56 - First drive shaft; 57 - Second drive shaft. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane". Example

[0022] Please refer to Figures 1 to 11 As shown, this embodiment provides a desktop test tube labeling machine, including: a buffer device for buffering test tubes, the buffer device having a hopper 15, the orifice diameter of the hopper 15 being larger than the outer diameter of the test tube cap, and the minimum orifice diameter of the hopper 15 being slightly larger than the outer diameter of the test tube cap; a second component including a conveying device for conveying test tubes located in the buffer device to the hopper 15; a third component including a labeling device, the inlet of which is located directly below the hopper 15, the labeling device being used to label the test tubes; a fourth component including a tray storage device, the tray storage device being able to supply and store trays 42; and a fifth component including a tray transport device, the tray transport device being able to transport the trays 42 supplied by the tray storage device to directly below the outlet of the labeling device, and being able to transport the trays 42 located directly below the outlet of the labeling device to the tray storage device for storage.

[0023] The desktop test tube labeling machine disclosed in this embodiment uses a buffer device to buffer and stack the produced test tubes. A hopper 15, a conveying device, and a labeling device are included. The conveying device places the buffered test tubes into the hopper 15, allowing them to fall into the inlet of the labeling device, where they are labeled. A tray storage device supplies trays 42 for classifying and holding test tubes, and stores trays 42 containing the classified test tubes. A tray transfer device transports the trays 42 provided by the tray storage device to the outlet of the labeling device to hold the labeled test tubes. The trays 42 then transfer the trays 42 containing the test tubes to the tray storage device for storage. Through the coordination of these features, this desktop test tube labeling machine effectively solves the problems of existing test tube labeling machines that cannot automatically arrange tubes or classify and store labeled test tubes.

[0024] To further explain the specific structure of the buffer device, the buffer device includes a buffer rack 10, which is provided with a guide plate 11. The guide plate 11 is inclined so that a loading side and a buffer side are formed on the high side and the low side of the guide plate 11, respectively. The guide plate 11 extends with multiple guide slides 111 along the direction from the loading side to the buffer side. The guide slides 111 penetrate the guide plate 11 along the thickness direction of the guide plate 11. The width of the guide slides 111 is slightly larger than the outer diameter of the test tube body and smaller than the outer diameter of the test tube cap. The hopper 15 is located on the portion of the guide plate 15 located on the buffer side. The ends of all the guide slides 111 located on the buffer side are on the same straight line and are on the same straight line as the opening of the hopper 15.

[0025] By setting up a buffer rack 10 to provide a basic support structure, and by setting up a guide plate 11 on it, the guide plate 11 is tilted and a guide slide 111 is opened on the guide plate 11, and the extension direction and width of the guide slide 111 are restricted, so that the test tubes can be vertically inserted into the guide slide 111 from top to bottom from the loading side, and then slide along the guide slide 111 from the loading side to the buffer side, so as to be continuously stacked on the buffer side. Multiple guide slides 111 are arranged in parallel, and the endpoint of each guide slide 111 is the buffer side. After each transport by the transport device, the test tubes buffered in the guide slide 111 will be automatically replenished to the buffer side under the action of gravity. Therefore, when the subsequent transport device transports, it only needs to make a straight back and forth on the buffer side to pass through the endpoint of all guide slides 111 and the hopper 15 in sequence, thereby effectively reducing the total transport distance.

[0026] In order to monitor the buffer status of the buffer device, the buffer device is also provided with a first detector 16 and a second detector 17. The first detector 16 is located on the buffer side and is used to detect whether there are test tubes on the buffer side of each guide slide 111. The second detector 17 is located above the guide plate 11 and is used to detect the number of test tubes on the buffer side of each guide slide 111.

[0027] By setting a first detector 16, the system monitors whether there are filled test tubes in the buffer side of each guide slide 111. If there are, the system can stop and grab the test tubes there. If not, the system can skip the guide slide 111 and move on to the next guide slide 111. By setting a second detector 17, the system monitors whether there are enough test tubes in the buffer of the guide slide 111. If there are not enough, the system will remind personnel to replenish the test tubes. Through the cooperation of the above features, the test tube buffer device can effectively solve the problem of neatly stacked test tubes and the long total stroke when mechanically grabbing test tubes.

[0028] To further explain the specific structure of the first detector 16, the first detector 16 includes a first base beam, which is horizontally disposed on the buffer side and fixedly connected to the buffer frame 10. A plurality of first distance sensors are horizontally spaced on the side of the first base beam facing the buffer side, and the first distance sensors correspond one-to-one with and are aligned with the guide slide 111.

[0029] To further explain the specific structure of the second detector 17, the second detector 17 includes a second base beam, which is horizontally positioned above the guide plate 11 and fixedly connected to the buffer rack 10. A preset distance is reserved between the second base beam and the guide plate 11, which is greater than the height of the test tube cap. Multiple second distance sensors are horizontally spaced at the bottom of the second base beam, and the second distance sensors correspond one-to-one with and are aligned with the guide slide 111.

[0030] It should be noted that the first distance sensor and the second distance sensor mentioned above can be any kind of distance sensor in the prior art, as long as they can detect the distance between the sensor and the corresponding object (if the distance is a preset distance, then the test tube exists; if the distance is much greater than the preset distance, then the test tube does not exist).

[0031] Preferably, to avoid premature or excessive replenishment of test tubes, the second base beam is located in the middle of the guide plate 11 and directly above the position near the buffer side.

[0032] To further distinguish the purpose of each guide rail 111, the second base beam is located directly above the guide plate 11 at one of the three equal divisions along the extension direction of the guide rail 111; a marker beam 18 is provided directly above the guide plate 11 at another one of the three equal divisions along the extension direction of the guide rail 111, both ends of the marker beam 18 are fixedly connected to the buffer rack 10, a preset distance is reserved between the marker beam 18 and the guide plate 11, the preset distance is greater than the height of the tube cap, the marker beam 18 is provided with multiple tube cap seats 181, the tube cap seats 181 correspond one-to-one with the guide rail 111 and are aligned, the tube cap seats 181 are used to place tube caps of different colors.

[0033] With the above settings, each guide slide 111 can have a different width, or different types of test tubes can be buffered in it. Then, different colored caps (corresponding to the cap colors of the test tubes buffered in the guide slide 111) can be set on the cap seat 181 to effectively distinguish them.

[0034] To more effectively secure the pipe cap and clearly see its color, the top surface of the marking beam 18 is inclined, and the pipe cap seat 181 is located on the top of the marking beam 18. The pipe cap seat 181 is cylindrical and is vertically connected to the top surface of the marking beam 18 so that the bottom end of the pipe cap seat 181 is closed. The side wall of the pipe cap seat 181 facing the loading side has a flared opening 1811 along the generatrix, and the flared opening 1811 penetrates the pipe cap seat 181 along the generatrix direction.

[0035] To prevent unnecessary lateral swaying during the test tube's descent, the guide plate 11 is divided into multiple ribs 112 by the guide slide 111. A guide plate 113 is provided parallel to each rib 112 directly below it. The top surface of the guide plate 113 is fixedly connected to the bottom surface of the corresponding rib 112 by multiple connecting rods. The distance between any two adjacent guide plates 113 is the same as the width of the guide slide 111 sandwiched above.

[0036] To prevent hard contact between the test tube and the buffer side and to regulate the vertical position of the test tube, a baffle 12 is vertically installed on the buffer side, and the baffle 12 is fixedly connected to the buffer rack 10; a buffer layer is laid on the side of the baffle 12 facing the loading side; when the test tube is located on the buffer side, the side wall of the test tube is in line contact with the buffer layer.

[0037] To make full use of space, the buffer rack 10 includes a base plate 13 and multiple upright plates 14. The base plate 14 is horizontally positioned directly below the guide plate 11. The edge of the guide plate 11 is fixedly connected to the base plate 14 through all the upright plates 14, so as to form an installation space between the guide plate 13 and the base plate 14.

[0038] To further explain the specific structure of the handling device, the handling device includes: a fixed frame 20, which is fixedly connected to the buffer frame 10 and located on the buffer side; a horizontally arranged translation rail 21 on the fixed frame 20, the translation rail 21 being parallel to the line connecting all the guide slides 111 at one end on the buffer side, a translation seat 22 slidably connected to the translation rail 21, the translation seat 22 having a translation force component (not shown), the translation force component being fixedly connected to the fixed frame 20; and a second component including a lifting mechanism, the lifting mechanism being located on the translation seat 22, the lifting mechanism having a lifting seat 23 and a lifting assembly, the lifting seat 23 being connected to the lifting... The mechanism is vertically slidably connected, and the lifting assembly is used to raise or lower the lifting seat 23; the third includes a gripping mechanism, which is disposed on the lifting seat 23 and is used to grip the cap of the test tube; the fourth includes a positioning ruler 24, which is disposed on the fixed frame 20 and is parallel to the translation rail 21. The positioning ruler 24 is provided with a plurality of toothed pins 241 at intervals along the length direction, and the toothed pins 241 correspond one-to-one with the guide slide 111; when the translation seat 22 is aligned with any one of the positioning pins 241, the gripping mechanism is aligned with the corresponding guide slide 111 and is located directly above the end of the corresponding guide slide 111 near the buffer side.

[0039] By setting up a fixed frame 20, a basic structural support is provided and it is fixed to the buffer frame 10; by setting up a translation rail 21, a translation seat 22, and translational force components, the translation seat 22 can move horizontally and orientingly within the fixed frame 20; by setting up a lifting mechanism, a lifting seat 23, and a lifting assembly, and by setting the lifting mechanism to be located on the translation seat 22, the lifting seat 23 can perform lifting and lowering actions with the translation seat 22 as a reference; based on this, by setting up a gripping mechanism and placing it on the lifting seat 23, the gripping mechanism is used to grip the cap of the test tube. Then, the test tube is lifted by the lifting seat 23 and vertically removed from the guide slide 111 of the buffer device. Then, it is moved by the translation seat 22 to the top of the hopper 15 and the test tube is released. By setting the positioning ruler 24, the toothed needles 241 are opened on the positioning ruler 24 so that the toothed needles 241 correspond one-to-one with the guide slide 111. Using the toothed needles 241 as reference points, the moving distance of the translation seat 22 is accurately positioned, so that the gripping mechanism can smoothly stop directly above the end point of the guide slide 111 corresponding to the toothed needles 241.

[0040] It should be noted that the aforementioned translational force component can be any type of power component in the existing technology, such as a cylinder, hydraulic cylinder, gear and rack mechanism, as long as it can drive the translation seat 22 to move in a directional and quantitative manner.

[0041] To further improve positioning accuracy, the translation seat 22 is equipped with a distance sensor, which cooperates with the toothed needle 241 to detect the vertical distance from the distance sensor to the toothed needle 241.

[0042] With the above settings, when the distance sensor aligns with the toothed needle 241, the detection distance will change from an extremely far instant to the distance between the distance sensor and the toothed needle 241. Compared with human eye confirmation, the alignment accuracy is significantly improved.

[0043] To further explain the specific structure of the gripping mechanism, the gripping mechanism includes a pair of gripping arms 25. The root of the gripping arm 25 is horizontally rotatably connected to the lifting seat 23. The lifting seat 23 is provided with a synchronous drive assembly, which is respectively connected to the two gripping arms 25 so that the head ends of the two gripping arms 25 can synchronously move closer or further away from each other. The head end of the gripping arm 25 is provided with a semi-hoop 251, and the two semi-hoops 251 can hug each other. The semi-hoops 251 are used to hold the cap of the test tube.

[0044] With the above setup, the two gripping arms 25 are driven to move away from each other using the synchronous drive assembly, and then lowered by the lifting seat 23 so that the gripping arms 25 and the tube cap are on the same plane. Then, the two gripping arms 25 are driven to move closer to each other using the synchronous drive assembly until the two half-hoops 251 hold the tube cap tightly. Then, the lifting seat 23 is raised until the test tube is pulled out from the guide slide 111 of the buffer device. Then, the translation seat 22 is moved to the top of the hopper 15, and the two gripping arms 25 are driven to move away from each other using the synchronous drive assembly to release the clamped test tube.

[0045] To provide one interpretation of the specific structure of the synchronous drive assembly, the synchronous drive assembly includes two stepper motors, which correspond one-to-one with and are connected to the gripping arm 25, and the two stepper motors rotate synchronously and in opposite directions.

[0046] To provide a second interpretation of the specific structure of the synchronous drive assembly, the synchronous drive assembly includes a stepper motor, a drive gear, and a driven gear. The stepper motor is connected to the drive gear, the drive gear meshes with the driven gear, the driven gear has the same shape as the drive gear, the drive gear and the driven gear are each meshed with a drive gear, the two drive gears have the same shape, and the two drive gears are respectively fixedly connected to the tail ends of the two gripping arms 25 and coaxially arranged.

[0047] To provide a third interpretation of the specific structure of the synchronous drive assembly, the synchronous drive assembly includes two drive cylinders, each corresponding to one of the gripping arms 25. The drive cylinders are hinged to the lifting seat 23, and the push rods of the drive cylinders are hinged to the corresponding gripping arms 25. The two drive cylinders are symmetrically arranged and extend and retract synchronously.

[0048] To avoid invalid operation, a monitoring plate 231 is provided on the top of the lifting seat 23, and a third detector 2311 is provided on the bottom surface of the monitoring plate 231. The third detector 2311 is used to monitor whether a test tube is held between the two half-hoops 251.

[0049] The monitoring plate 231 is tilted upward at one end away from the lifting seat 23 to form a viewing section. The bottom surface of the viewing section is provided with a fourth detector 2312, which is used to monitor whether there is a test tube at the end of any guide slide 111.

[0050] It should be noted that the third detector 2311 and the fourth detector 2312 mentioned above can be any kind of distance sensor in the prior art.

[0051] To further explain the specific structure of the lifting assembly, the lifting assembly includes a top roller 26, a bottom roller 27, and a transmission belt 28; the top roller 26 and the bottom roller 27 are respectively located at the upper and lower parts of the lifting mechanism, the top roller 26 and the bottom roller 27 are located in the same vertical plane and the same vertical line, the top roller 26 or the bottom roller 27 is drivenly connected to a lifting motor 29, and the lifting motor 29 is fixedly connected to the lifting mechanism; the transmission belt 28 is supported on the top roller 26 and the bottom roller 27; the lifting seat 23 is fixedly connected to the transmission belt 28.

[0052] With the above setup, the lifting motor 29 drives the top roller 26 or the bottom roller 27 to rotate, which in turn drives the transmission belt 28 to drive the lifting seat 23 to rise and fall.

[0053] To improve the cooperation effect between the transmission belt 28 and the top roller 26 and the bottom roller 27, the roller surfaces of the top roller 26 and the bottom roller 27 are respectively provided with toothed surfaces of the same shape; the inner surface of the transmission belt 28 is provided with a toothed rack that meshes with the toothed surfaces.

[0054] To further explain the specific structure of the labeling device, the labeling device includes: a fixing mechanism, which includes a fixing frame 32 and a pair of limiting semi-cylinders 33. The two limiting semi-cylinders 33 can be joined to form a fixing groove 30. The top and bottom ends of the fixing groove 30 both penetrate the fixing mechanism. The fixing groove 30 is located directly below the bottom end of the hopper 15. The fixing groove 30 is used for vertically inserting test tubes; the second part includes a tube-spinning mechanism, which includes several vertically arranged rotating rollers 31 and a rotating roller motor. The rotary roller motor is driven by at least one of the rotary rollers 31. All the rotary rollers 31 are arranged in a ring at intervals to form a rotary tube cavity. The rotary tube cavity is coaxially arranged with the fixed groove 30 so that the side wall of the test tube in the fixed groove 30 is in line contact with all the rotary rollers 31. The third part includes a main printing mechanism for printing labels. The main printing mechanism has a label outlet, which is aligned with the side wall of the rotary tube cavity so that the label at the label outlet contacts the side wall of the test tube in the rotary tube cavity.

[0055] By setting a fixing mechanism with a fixing groove 30 for inserting the test tube to be labeled, the test tube is positioned to prevent positional and angular deviations during labeling. A rotating tube mechanism, comprising several rotating rollers 31 and a rotating roller 31 motor, is also set. All rotating rollers 31 are arranged in a ring-shaped interval to form a rotating tube cavity, which is coaxial with the fixing groove 30. This ensures that the test tube located in the fixing groove 30 is also located within the rotating tube cavity, with its sidewall in line contact with all rotating rollers 31. The rotating roller 31 motor drives at least one rotating roller 31 to rotate, thus rotating the test tube through friction. The remaining rotating rollers 31 passively rotate with the test tube under the action of friction, stabilizing the position and angle of the test tube during rotation. The main printing mechanism prints labels to be affixed to test tubes. The label outlet of the main printing mechanism is aligned with the side wall of the rotating tube cavity, ensuring that the printed label ejected from the label outlet contacts the side wall of the test tube inside the rotating tube cavity. As the test tube rotates, the ejected label adheres to the surface of the test tube. A fixing mechanism, including a fixing frame 32 and a pair of limiting semi-cylinders 33, allows for variable width of the fixing groove 30 to accommodate different types of test tubes. It effectively fixes test tubes of different outer diameters. Specifically, the two limiting semi-cylinders 33 are used to clamp the test tube. With this design, when the two limiting semi-cylinders 33 move away from each other, the test tube loses friction and falls freely, directly into the tray 42 placed directly below.

[0056] It should be noted that the main printing mechanism mentioned above can be any label printer in the existing technology, as long as it can print labels for affixing.

[0057] It should be noted that the labeling device is located within the installation space.

[0058] To ensure the stability of the test tube clamping while preventing damage to the test tube structure due to hard contact between the limiting half-cylinder 33 and the test tube, one limiting half-cylinder 33 is fixedly connected to the fixing frame 32, and the other limiting half-cylinder 33 is slidably connected to the fixing frame 32; the fixing frame 32 is slidably connected to a slide block 34, which is connected to the sliding limiting half-cylinder 33 through an elastic buffer component, and the sliding direction of the slide block 34 is collinear with the sliding direction of the corresponding limiting half-cylinder 33; the slide block 34... 4. A rack 331 is provided, which is parallel to the sliding direction of the slide block 34. The rack 331 is engaged with a fixed gear 332, which is connected to a fixed motor. The fixed motor is fixedly connected to the fixed frame 32. The rotating roller 31 is rolled on the wall of the fixed groove 30. When the two limiting half cylinders 33 are engaged, all the rotating rollers 31 are parallel to the test tubes located in the fixed groove 30 and are in contact with the side wall of the test tubes located in the fixed groove 30.

[0059] With the above configuration, one limiting half-cylinder 33 is fixedly connected to the fixed frame 32, so that only the other limiting half-cylinder 33 needs to be moved to bring the two limiting half-cylinders 33 closer or further apart; by setting a fixed motor, a fixed gear 332 and a rack 331, the fixed motor drives the fixed gear 332 to rotate, and through the meshing of the fixed gear 332 and the rack 331, the limiting half-cylinder 33 slides on the fixed frame 32; by setting a slide block 34 and an elastic buffer assembly, under the premise that the limiting half-cylinder 33 is clamped with the test tube, the elastic buffer assembly is used to provide elastic buffering to avoid irreversible deformation of the test tube due to hard contact; by setting a rotating roller 31 on the groove wall of the fixed groove 30, the rotating roller 31 replaces the groove wall of the fixed groove 30 to contact the side wall of the test tube. The roller surface of the rotating roller 31 can be covered with a rubber layer, which not only avoids hard contact, but also increases friction and facilitates the rotation of the test tube.

[0060] To further explain the specific structure of the elastic buffer assembly, the elastic buffer assembly includes multiple spring slide rods 35, the two ends of which are connected to the slide block 34 and the limiting half cylinder 33 respectively, so that the slide block 34 and the limiting half cylinder 33 are elastically spaced apart; the sliding direction of the spring slide rods 35 is parallel to that of the slide block 34.

[0061] It should be noted that the aforementioned spring slide rod 35 refers to a rod-shaped component fitted with a spring. One end of the rod is fixedly connected to the slide block 34, and the other end is slidably fitted with the limiting half-cylinder 33. The spring is clamped between the slide block 34 and the limiting half-cylinder 33.

[0062] To further explain the specific structure of the main printing mechanism, the main printing mechanism includes a main unit 38, a main printer 381, and a main printing paper 382; the main printer 381 and the main printing paper 382 are both located on the main unit 38, the main printer 381 is provided with a paper inlet and a label outlet, and the main printing paper 382 enters from the paper inlet and exits from the label outlet.

[0063] In order to print classification labels, the above-mentioned test tube labeling device also includes a secondary printer 39, which is used to print classification labels.

[0064] With the above settings, the secondary printer 39 can be used to print classification labels separately, and the printed classification labels can be directly dropped into the tray below.

[0065] It should be noted that the aforementioned secondary printer 39 can be any type of label printer in the prior art.

[0066] To further explain the specific structure of the pallet storage device, the pallet storage device includes: two stacking compartments 40, each stacking compartment 40 having a stacking groove 41 vertically formed, the bottom of which extends vertically through the stacking compartment 40 to form a pallet outlet 411; secondly, a plurality of pallets 42, the size of which matches the size of the stacking groove 41, the pallets 42 being able to be stacked vertically within the stacking groove 41, with the pallet outlets of the pallets 42 facing upwards; and thirdly, two pallet dispensing mechanisms, each pallet dispensing mechanism being located at the pallet outlet 411 of the stacking compartment 40 and fixedly connected to the corresponding stacking compartment 40, the pallet dispensing mechanism including a pair of limiting plates 43 and a control component, the two limiting plates... 43 are symmetrically arranged on opposite sides of the stacking bin 40; the control component includes a pair of limit motors 44, the limit motors 44 are fixedly connected to the stacking bin 40, the limit motors 44 correspond one-to-one with the limit plates 43, and the limit plates 43 are fixedly connected to the output shaft of the corresponding limit motors 44, so that the limit plates 43 can switch between a first state and a second state; when the limit plates 43 are in the first state, the projection of the limit plates 43 on the outlet 411 is located inside the outlet 411, and the top of the limit plates 43 abuts against the bottommost tray 42; when the limit plates 43 are in the second state, the projection of the limit plates 43 on the outlet 411 is located outside the outlet 411.

[0067] By setting up a stacking bin 40 and opening a stacking groove 41 vertically in the stacking bin 40, pallets 42 are stacked in the stacking groove 41, effectively reducing the floor space occupied by stacking pallets 42. By setting the bottom of the stacking groove 41 to extend vertically through the stacking bin 40 to form a pallet outlet 411, the pallets 42 can fall from the pallet outlet 411 under the action of gravity, thus allowing the pallets 42 to fall onto the conveyor belt. By setting up a pallet dispensing mechanism, which includes a pair of limit plates 43 and a control component, the control component controls the state of the limit plates 43, thereby partially sealing the pallet outlet through the limit plates 43. The outlet 411 can be closed or opened, allowing it to switch between closed and open states. When a pallet 42 needs to be provided, the limit plate 43 is controlled to open the outlet 411 until a pallet 42 falls. Then, the limit plate 43 is controlled to partially close the outlet 411, allowing only one pallet 42 to fall. By repeating the above operation, pallets 42 can be arranged sequentially on the conveyor belt. By setting a limit motor 44, the position state of the limit plate 43 is switched by rotating the limit motor 44, thereby switching the opening and closing state of the outlet 411.

[0068] It should be noted that, in the above cases, the limiting plate 43 can be set horizontally or vertically, and both can achieve the desired effect.

[0069] To further optimize the force distribution on the limiting plate 43, the output shaft of the limiting motor 44 is horizontally positioned; the limiting plate 43 is vertically positioned and perpendicularly connected to the output shaft of the limiting motor 44, and the limiting plate 43 has a limiting edge; when in the first state, the limiting edge is located at the top of the limiting plate 43 and is parallel to the ground, and the limiting edge abuts against the tray 42 located at the bottom; when in the second state, the limiting edge is vertically positioned.

[0070] With the above settings, the limiting plate 43 is set vertically, which significantly improves its vertical bending and deformation resistance compared to the horizontal setting of the limiting plate 43, and avoids unnecessary bending caused by bearing the weight of the pallet 42.

[0071] To further explain the specific shape of the limiting plate 43, the limiting plate 43 is in the shape of a right-angled triangle, one right-angled side of the limiting plate 43 is the limiting side, and the middle part of the limiting plate 43 is connected to the output shaft of the limiting motor 44.

[0072] With the above settings, the area of ​​the limiting plate 43 is minimized while ensuring its structural performance and functionality, thereby further improving its bending resistance and making it easier to rotate with the limiting motor 44. The angular part with the limiting edge is also easier to cooperate with the edge of the tray 42.

[0073] To further optimize the setting position and mating structure of the limiting plate 43, a limiting window 401 is opened on the side wall at the bottom of the stacking bin 40. A motor base 441 is provided on the outer side of the limiting window 401. The motor base 441 is fixedly connected to the stacking bin 40, and the limiting motor 44 is detachably mounted on the motor base 441. When the limiting plate 43 is in the first state, one corner of the limiting plate 43 with the limiting edge is located inside the limiting window 401. When the limiting plate 43 is in the second state, the limiting plate is located outside the limiting window 401.

[0074] The above settings ensure that the rotation of the limiting plate 43 is not obstructed or blocked by other structures, while also ensuring that the distance between the limiting plate 43 and the pallet 42 is close enough, and effectively preventing the limiting plate 43 from contacting the stacking warehouse 40 in the second state.

[0075] In order to enable the limiting plate 43 to quickly return from the second state to the first state, the motor base 441 is provided with a limiting spring 45 on the side near the limiting plate 43, and the limiting spring 45 is connected to a corner of the limiting plate 43 where the limiting edge is located; when the limiting spring 45 is in the natural state, the limiting plate 43 is in the first state.

[0076] With the above settings, the limit plate 43 is quickly reset by utilizing the reset elasticity of the limit spring 45. When reset is required, the power supply of the limit motor 44 is simply cut off, and the limit plate 43 can be quickly pulled back to the first state by utilizing the reset elasticity of the limit spring 45, so that the remaining trays 42 fall down.

[0077] To facilitate observation of the number of pallets 42 inside the stacking warehouse 40 and to replenish them in a timely manner, the stacking warehouse 40 is in the shape of a cuboid column. Two limiting windows are symmetrically opened at the bottom of the two side walls formed by the long side and the high side of the stacking warehouse 40. An observation port 402 is vertically opened in the middle of the side wall formed by the short side and the high side of the stacking warehouse 40.

[0078] In order to reduce the stacking height of the pallets 42 and the rotation range of the limiting plate 43, the pallet 42 is a rectangular plate, and a ring band 421 is cut out along the thickness direction at the bottom of the side wall of the pallet 42 so that the lower part of the pallet 42 matches the inner part of the upper part of the pallet 42; the bottom surface of the top edge of the ring band 421 contacts and engages with the limiting edge.

[0079] With the above settings, on the one hand, the bottom of the upper tray 42 can be inserted into the opening of the lower tray 42 to reduce the vertical stacking height; on the other hand, by making the limiting edge cooperate with the top edge of the ring belt 421, the length of the limiting edge is effectively shortened, so that the limiting plate 43 can rotate more quickly.

[0080] In order to cooperate with the pallet conveying device, the above-mentioned test tube pallet storage device also includes a receiving compartment 46, all of the stacking compartments 40 are located on the top of the receiving compartment 46, and all of the tray outlets 411 are connected to the receiving compartment 46.

[0081] To further explain the specific structure of the pallet conveying device, the pallet conveying device includes: a pair of conveyor belts 50, which are arranged in parallel and spaced apart to form a lifting gap between them; each conveyor belt 50 has a tube loading position 501 and a lifting position 502 at its two ends; each conveyor belt 50 has a receiving position 503 located between the tube loading position 501 and the lifting position 502; the tube loading position 501 is located directly below the fixing groove 30; the lifting position 502 and the receiving position 503 are located directly below the tray outlets 411 of the two stacking bins 40; all pallets 42 are located in the stacking bins 40 directly above the receiving positions 503; and a second component includes a lifting mechanism with a lifting platform 51 located within the lifting gap. The lifting platform 51 is located directly below the lifting position 502 and is used to lift the tray 42 containing test tubes into the corresponding stacking bin 40, so that the tray 42 is contained within the stacking bin 40 by the corresponding tray unloading mechanism. A baffle 55 is vertically provided on the outer wall of the conveyor belt 50. The top of the baffle 55 is higher than the top surface of the conveyor belt 50, and the distance between the two baffles 55 is slightly greater than the size of the tray 42. A first positioning rod 551 and a second positioning rod 552 are symmetrically protruding from the inner sides of the upper part of the two baffles 55. When the tray 42 contacts the two first positioning rods 551, the tray 42 is located in the tube loading position 501; when the tray 42 contacts the two second positioning rods 552, the tray 42 is located in the lifting position 502.

[0082] By setting up a pair of conveyor belts 50 parallel and spaced apart to form a lifting gap, and setting up a lifting mechanism with a lifting platform 51 between them, the lifting platform 51 can smoothly lift the pallet 42 located at the lifting position 502 from bottom to top and place it into the corresponding stacking bin 40, so that the pallet 42 is contained and stored in the stacking bin 40 by the corresponding pallet dispensing mechanism. The conveyor belt 50 includes a tube loading position 501, a lifting position 502, and a receiving position 503. In use, the pallet 42 is placed from top to bottom through the stacking bin 40 directly above the receiving position 503, and then the pallet 42 is conveyed to the tube loading position 501 by the conveyor belt 50. The tube loading position 501 holds the test tubes falling from the fixing slot 30, and then the conveyor belt 50 carries the test tubes containing the test tubes. The test tube tray 42 is conveyed to the lifting position 502, and the lifting platform 51 smoothly lifts the tray 42 containing the test tubes from bottom to top into the corresponding stacking bin 40, so that the tray 42 is contained in the stacking bin 40 by the corresponding tray dispensing mechanism; by setting baffles 55, the tray is effectively prevented from slipping off the sides of the conveyor belt 50; by setting the first positioning baffle 551 and the second positioning baffle 552, the tray 42 can be accurately positioned to ensure that it is in the tube loading position 501 or the lifting position 502; on the other hand, the conveyor belt 50 can continuously convey, and the tray 42 can slide relative to the conveyor belt 50 after being blocked by the first positioning baffle 551 or the second positioning baffle 552, which can still ensure that it is in the tube loading position 501 or the lifting position 502.

[0083] It should be noted that the portion of the conveyor belt 50 with the lifting position 502 and the receiving position 503 is located inside the receiving chamber 46, while the portion with the pipe loading position 501 is located outside the receiving chamber 46, but within the installation space.

[0084] To further explain the specific structure of the lifting mechanism, the lifting mechanism includes a lifting motor 52, a lifting screw 53, and a fixing frame 54; the fixing frame 54 is fixedly connected to the base frame of the side wall of the conveyor belt 50; the lifting motor 52 is detachably connected to the fixing frame 54; the lifting screw 53 is drivenly connected to the lifting motor 52, and the lifting screw 53 is vertically arranged; the lifting platform 51 is screwed to the lifting screw 53, and the lifting platform 51 and the fixing frame 54 are slidably connected through a plurality of sliding rods 511, and the sliding rods 511 are arranged parallel to the lifting screw 53.

[0085] With the above settings, the lifting motor 52 drives the lifting screw 53 to rotate in a directional manner, which can drive the lifting platform 51 connected to it to rise or fall; by setting the slide bar 511, the rotation limit of the lifting platform 51 is set so that it can only rise and fall, but cannot rotate.

[0086] To further explain the specific structure of the lifting platform 51, the lifting platform 51 includes a lifting plate 512 and a support plate 513. The lifting plate 512 and the support plate 513 are spaced apart and fixedly connected by multiple fixing rods 514. The fixing rods 514 are arranged parallel to the lifting screw 53. The middle part of the lifting plate 512 is screwed to the lifting screw 53. The support plate 513 is located directly above the lifting plate 512, and the top surface of the support plate 513 is used to support the tray 42.

[0087] With the above configuration, the lifting screw 53 can be screwed into the middle of the lifting plate 512 to improve the force balance of the lifting plate 512 and the support plate 513 during the lifting process, thereby improving the stability of both.

[0088] It should be noted that, Figure 10 In order to make it easier to intuitively show the specific positions of the pipe loading position 501, the lifting position 502 and the receiving position 503, a tray is drawn at each of the three positions, so that the specific position of the three can be indicated by the specific position of the tray.

[0089] To further enhance structural stability and integrity, the bottoms of the two baffles 55 are fixedly connected by two beams 553.

[0090] To further optimize the specific structure of the conveyor belt 50, the conveyor belt 50 includes a tube-picking conveyor belt 504 and a buffer conveyor belt 505. The tube-picking conveyor belt 504 and the buffer conveyor belt 505 are linearly arranged. The tube loading position 501 is set at the end of the tube-picking conveyor belt 504 away from the buffer conveyor belt 505, and the receiving position 503 is set at the end of the tube-picking conveyor belt 504 close to the buffer conveyor belt 505. The lifting position 502 is set at the end of the buffer conveyor belt 505 away from the tube-picking conveyor belt 504. The tube-picking conveyor belt 504 and the buffer conveyor belt 505 are arranged close to each other and connected so that the tray can be conveyed from the receiving position 503 to the lifting position 502.

[0091] To ensure the synchronization of the two pipe-retrieving conveyor belts 504, the two pipe-retrieving conveyor belts 504 are connected by a first drive shaft 56. The first drive shaft 56 is located directly above a beam plate 553. The first drive shaft 56 is connected to a first drive motor (not shown in the figure), and the first drive motor is fixedly connected to the beam plate 553.

[0092] To ensure the synchronization of the two buffer conveyor belts 505, the two buffer conveyor belts 505 are connected by a second drive shaft 57. The second drive shaft 57 is located directly above another beam plate 553. The second drive shaft 57 is connected to a second drive motor (not shown in the figure), and the second drive motor is fixedly connected to the beam plate 553.

[0093] Preferably, the conveying speed of the buffer conveyor belt 505 is greater than the conveying speed of the tube-taking conveyor belt 504.

[0094] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A desktop test tube labeling machine, characterized in that, include: A buffer device for buffering test tubes, the buffer device having a hopper, the orifice of the hopper having a diameter larger than the outer diameter of the test tube cap, and the minimum orifice of the hopper having a diameter slightly larger than the outer diameter of the test tube cap. A transport device for transporting test tubes located in the buffer device to the hopper; A labeling device, the inlet of which is located directly below the hopper, is used to label test tubes; A pallet storage device, which is capable of supplying and storing pallets; A pallet transport device is provided that can transport the pallet supplied by the pallet storage device to a location directly below the outlet of the labeling device, and can transport the pallet located directly below the outlet of the labeling device to the pallet storage device for storage.

2. The desktop test tube labeling machine according to claim 1, characterized in that, The buffer device includes a buffer rack with a guide plate. The guide plate is inclined to form a loading side and a buffer side on its high side and low side, respectively. The guide plate extends with multiple guide tracks along the direction from the loading side to the buffer side. The guide tracks penetrate the guide plate along its thickness direction. The width of the guide tracks is slightly larger than the outer diameter of the test tube body and smaller than the outer diameter of the test tube cap. The hopper is located on the portion of the guide plate situated on the buffer side; All of the guide slides are located on the same straight line at one end on the buffer side, and are also on the same straight line as the opening of the hopper.

3. The desktop test tube labeling machine according to claim 2, characterized in that, The guide plate is divided into multiple ribs by the guide slide. A guide plate is provided parallel to each rib directly below it. The top surface of the guide plate is fixedly connected to the bottom surface of the corresponding rib by multiple connecting rods. The distance between any two adjacent guide plates is the same as the width of the guide slide sandwiched directly above.

4. The desktop test tube labeling machine according to claim 2, characterized in that, The conveying device includes: A fixed frame is fixedly connected to the buffer frame and located on the buffer side; the fixed frame is horizontally provided with a translation rail, the translation rail is parallel to the line connecting all the guide slides at one end on the buffer side, the translation rail is slidably connected with a translation seat, the translation seat is provided with a translation force component, and the translation force component is fixedly connected to the fixed frame; A lifting mechanism is provided on the translation seat. The lifting mechanism includes a lifting seat and a lifting assembly. The lifting seat is vertically slidably connected to the lifting mechanism. The lifting assembly is used to raise or lower the lifting seat. A gripping mechanism is provided on the lifting seat and is used to grip the cap of the test tube; A positioning ruler is provided on the fixed frame and is arranged parallel to the translation rail. The positioning ruler is provided with a plurality of toothed pins at intervals along the length direction, and the toothed pins correspond one-to-one with the guide slide. When the translation seat is aligned with any of the teeth, the gripping mechanism is aligned with the corresponding guide slide and is located directly above the end of the corresponding guide slide near the buffer side.

5. The desktop test tube labeling machine according to claim 4, characterized in that, The gripping mechanism includes a pair of gripping arms, the root of which is horizontally rotatably connected to the lifting seat. The lifting seat is provided with a synchronous drive assembly, which is respectively connected to the two gripping arms so that the tips of the two gripping arms can move closer or further away from each other synchronously. The gripping arm has a semi-hoop at its head end, and the two semi-hoops can hug each other. The semi-hoops are used to hold the cap of the test tube.

6. The desktop test tube labeling machine according to claim 5, characterized in that, The lifting assembly includes a top roller, a bottom roller, and a transmission belt; The top roller and the bottom roller are respectively located at the upper and lower parts of the lifting mechanism. The top roller and the bottom roller are located in the same vertical plane and the same vertical line. The top roller or the bottom roller is driven by a lifting motor, and the lifting motor is fixedly connected to the lifting mechanism. The transmission belt is supported on the top roller and the bottom roller; The lifting seat is fixedly connected to the transmission belt.

7. The desktop test tube labeling machine according to claim 1, characterized in that, The labeling device includes: The fixing mechanism includes a fixing frame and a pair of limiting semi-cylinders. The two limiting semi-cylinders can be joined together to form a fixing groove. The top and bottom ends of the fixing groove are both through the fixing mechanism. The fixing groove is located directly below the bottom end of the hopper. The fixing groove is used to vertically insert test tubes. A tube-spinning mechanism includes several vertically arranged rotating rollers and a rotating roller motor. The rotating roller motor is connected to at least one of the rotating rollers. All the rotating rollers are arranged in a ring at intervals to form a tube-spinning cavity. The tube-spinning cavity is coaxially arranged with the fixed groove so that the side wall of the test tube in the fixed groove is in line contact with all the rotating rollers. The main printing mechanism is used to print labels. The main printing mechanism has a label outlet, which is aligned with the side wall of the spiral cavity so that the label at the label outlet contacts the side wall of the test tube inside the spiral cavity.

8. The desktop test tube labeling machine according to claim 7, characterized in that, One of the limiting semi-cylinders is fixedly connected to the fixed frame, and the other limiting semi-cylinder is slidably connected to the fixed frame; The fixed frame is slidably connected to a slide block, and the slide block is connected to the sliding limiting half-cylinder through an elastic buffer component. The sliding direction of the slide block and the sliding direction of the corresponding limiting half-cylinder are collinear. The slide block is provided with a rack, which is arranged parallel to the sliding direction of the slide block. The rack meshes with a fixed gear, which is driven by a fixed motor. The fixed motor is fixedly connected to the fixed frame. The rotating roller is tumbling against the wall of the fixed groove; When the two limiting half-cylinders are engaged, all the rotating rollers are arranged parallel to the test tube located in the fixed groove and in contact with the side wall line of the test tube located in the fixed groove.

9. The desktop test tube labeling machine according to claim 7, characterized in that, The tray storage device includes: Two stacking bins, each having a stacking groove in the vertical direction, the bottom of which extends vertically through the bin to form a tray outlet; Multiple pallets, the size of which matches the size of the stacking slot, the pallets being able to be stacked vertically in the stacking slot, with the pallet openings facing upwards; Two pallet dispensing mechanisms are provided, each located at the pallet dispensing port of the stacking bin and fixedly connected to the corresponding stacking bin. Each pallet dispensing mechanism includes a pair of limiting plates and a control component. The two limiting plates are symmetrically arranged on opposite sides of the stacking bin. The control component includes a pair of limiting motors, each fixedly connected to the stacking bin. Each limiting motor corresponds to one of the limiting plates, and each limiting plate is fixedly connected to the output shaft of the corresponding limiting motor, so that the limiting plate can switch between a first state and a second state. When the limiting plate is in the first state, the projection of the limiting plate on the outlet is located inside the outlet, and the top of the limiting plate abuts against the tray located at the bottom. When the limiting plate is in the second state, the projection of the limiting plate onto the outlet is located outside the outlet.

10. The desktop test tube labeling machine according to claim 9, characterized in that, The pallet transfer device includes: A pair of conveyor belts are arranged in parallel and spaced apart to form a lifting gap between the two conveyor belts. Each end of the conveyor belt is provided with a tube loading position and a lifting position. The conveyor belt is provided with a tray receiving position, which is located between the tube loading position and the lifting position. The tube loading position is located directly below the fixed groove. The lifting position and the tray receiving position are located directly below the tray outlets of the two stacking bins, respectively. All of the pallets are located in the stacking bin directly above the receiving position; The lifting mechanism is equipped with a lifting platform located within the lifting gap and directly below the lifting position. The lifting platform is used to lift the tray containing test tubes to the corresponding stacking bin, so that the tray is contained within the stacking bin by the corresponding tray dispensing mechanism for storage. The outer side wall of the conveyor belt is vertically provided with baffles, the top of the baffles is set at a height higher than the top surface of the conveyor belt, and the distance between the two baffles is slightly larger than the size of the tray; The upper inner sides of the two baffles are respectively provided with a first positioning stop and a second positioning stop symmetrically protruding; When the tray comes into contact with the two first positioning stops, the tray is located at the tube loading position; When the tray comes into contact with the two second positioning stops, the tray is in the lifting position.

Images