CN109319245B

CN109319245B - Device for automatically pasting test tube label

Info

Publication number: CN109319245B
Application number: CN201810971367.6A
Authority: CN
Inventors: 许波; 许重远; 张菁; 曹国英; 郁继诚; 王晶晶
Original assignee: Southern Hospital Southern Medical University
Current assignee: Southern Hospital Southern Medical University
Priority date: 2018-08-24
Filing date: 2018-08-24
Publication date: 2020-12-01
Anticipated expiration: 2038-08-24
Also published as: CN109319245A

Abstract

The invention discloses a device for automatically pasting test tube labels, which comprises a bottom plate, a storage device, a blocking device, a clamping wheel, a label separating device, a signal processing device and a plurality of sensing devices, wherein the blocking device is used for separating single test tubes, and the clamping wheel is used for moving the test tubes to paste labels. This kind of automatic paste device of test tube label, separate one by one after depositing of test tube is realized through the separation device, utilize label separator to separate the label from the label paper, then utilize the card wheel to drive the test tube and operate and paste the label, utilize elastic component to compress tightly, further realize automatic pasting test tube label to compact structure uses swift high efficiency, has avoided single manpower to paste the label, guarantees speed and the quality that the label pasted. And the device is provided with a signal processing device and a plurality of sensors, so that the applicability of the device for automatically sticking the test tube label is ensured to a greater extent. The invention is used in the field of medical devices.

Description

Device for automatically pasting test tube label

Technical Field

The invention relates to the field of medical devices, in particular to a device for automatically pasting test tube labels.

Background

In biological research and clinical work, test tubes need to be identified according to requirements of biological samples, uniqueness of the test tubes is guaranteed, and a common identification method is to label the test tubes and distinguish the test tubes by information on label paper. In particular, in the field of medical research, test tubes are often used as containers for the temporary storage of blood samples. The nurse prints the patient information on the label paper and tears the printed label paper off to attach to the test tube. The identity of a patient is checked according to the information on the test tube during blood sampling, and the blood sample and the patient information are in one-to-one correspondence in the whole process of collection, transportation and detection.

The test tube is usually labeled by manually peeling the label off the label paper and applying the label to the test tube in alignment with the middle of the test tube. When the test tube is used for blood collection, a large amount of test tube labeling work is required. The manual tube taking and label sticking paper mode needs an operator to repeatedly take tubes and stick labels for a long time, is easy to generate fatigue, and can cause tube taking or label sticking errors. The label paper is difficult for tearing with the label area and drops from the test tube in order to prevent that the label, and the label of pasting on the test tube needs again to be fixed with the hand, and the work efficiency that wastes time and energy is lower. Fatigue is easily caused by long-time repeated operation, so that the label is not adhered in a standard way, and identification is not facilitated, or a wrong label is adhered. Even when the test tube is fatigued, accidents can happen, and the test tube can be damaged.

Disclosure of Invention

The invention aims to provide a device for automatically pasting test tube labels, which is convenient, efficient and high in practicability.

The technical scheme adopted by the invention is as follows: a device for automatically pasting test tube labels,

the label separating device comprises a bottom plate, a storage device, a blocking device, a clamping wheel, a label separating device, a signal processing device and a plurality of sensing devices;

the bottom plate is positioned at the bottom and is provided with a bracket;

the storage device is fixed above the axle center of the clamping wheel through a bracket and is used for storing the test tube;

the blocking device is positioned between the storage device and the clamping wheel, and the test tubes are taken out from the storage device and transferred to the clamping wheel one by one;

a gap is reserved between the clamping wheel and the bottom plate, and the clamping wheel is used for transferring the test tube after obtaining the test tube;

the label separating device is fixed on the bottom plate, is used for separating the label from the label paper and sending the label to the transfer track of the test tube in the card wheel;

each sensing device is used for identifying the working states of the storage device, the blocking device, the card wheel and the label separating device and transmitting information to the signal processing device for processing.

As an improvement of the scheme, the clamping wheel is provided with a plurality of retraction mechanisms for retracting the test tubes along the axial direction, each retraction mechanism comprises a slot position which is opened outwards, a clamping block which can open or close the open position of the slot position and a driving device which drives the clamping block to move, a plurality of elastic components which incline upwards are arranged below the clamping wheel, one end of each elastic component is elastically connected with the bottom plate, and the end which is not connected in each elastic component is higher than the gap between the clamping wheel and the bottom plate.

As the improvement of above-mentioned scheme, the quantity of calorie wheel is no less than 2, and the distance between two adjacent calorie wheels is less than the length of test tube, and the axle center of each calorie wheel is located same axis and the trench one-to-one between the different calorie wheels.

As an improvement of the scheme, each clamping wheel is a cylinder with a plurality of axial grooves formed in the circumference, the opening of each axial groove is larger than the diameter of a test tube, the section line of each axial groove is a semicircular arc, an induction device is arranged in each axial groove, the axle center of each clamping wheel is fixedly connected with a support rod, the support rod is hinged to a support, and the support is connected with a driving device.

As the improvement of the scheme, the section of the storage device is V-shaped, the opening of the storage device is not smaller than the diameter of the test tube, a channel is arranged at the opening of the storage device, the channel is inclined to point to the axis of the clamping wheel, and the width of the channel is not smaller than the diameter of the test tube.

As the improvement of above-mentioned scheme, the blocking device is including preceding baffle and the backplate that is located strorage device passageway position, and preceding baffle and backplate are opened and closed the passageway in turn under drive arrangement's traction, and the distance of preceding baffle and backplate is 1 ~ 2 times of test tube diameter, is equipped with induction system on the preceding baffle.

As an improvement of the scheme, the label separating device comprises a separating block and a rotating wheel, the rotating wheel is hinged with the support, the separating block is connected to the bottom plate, a gap is reserved between the separating block and the bottom plate, and a protrusion is arranged at one end of the separating block and faces towards the gap between the clamping wheel and the bottom plate.

As an improvement of the scheme, a sensing device is arranged between each elastic component and the separating block, the sensing device is arranged on the other side of each elastic component, the sensing devices are connected to the signal processing device, the length of each elastic component along the axial direction of the clamping wheel is not less than the width of the label, and each elastic component is a spring piece.

As an improvement of the scheme, the clamping blocks are two racks respectively positioned at two ends of the opening of the axial groove, gears are arranged at two ends of the opening of the axial groove, the other ends of the racks are connected to the gears, and the gears are connected with a driving device.

As an improvement of the scheme, the support is provided with an acoustic device, and the acoustic device is connected with the signal processing device.

The invention has the beneficial effects that: the device for automatically pasting the test tube label realizes the storage and transfer of the test tube through the separation device, utilizes the label separation device to separate the label from the label paper, then utilizes the clamping wheel to drive the test tube to rotate to paste the label, and utilizes the elastic device to compress the label, thereby further realizing the automatic pasting of the test tube label, and the device has compact structure, is fast and efficient to use, avoids the single manual pasting of the label, ensures the speed and quality of label pasting, is provided with the signal processing device and a plurality of sensors, and greatly ensures the applicability of the device for automatically pasting the test tube label; furthermore, a plurality of positions for clamping the test tube by a plurality of clamping wheels are arranged, so that the stability of the test tube in the label sticking process is further ensured; meanwhile, the sensing device is arranged in the label separating device, so that the label separating situation can be better monitored in real time, the sensing device is arranged on one side of the elastic assembly and used for monitoring the label adhesion and releasing the test tube, all the sensing devices are connected to the signal processing device, and further, the sensing device can be connected to the sound device, so that the running condition of the device can be monitored in real time, and the practicability of the device is ensured.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

fig. 1 is a schematic view of the automatic test tube labeling apparatus.

Detailed Description

Referring to fig. 1, the present invention is an apparatus for automatically attaching test tube labels, which includes a base plate, a storage device 11, a blocking device 23, a card wheel 31, a label separating device, a signal processing device and a plurality of sensing devices. The bottom plate is positioned at the bottom and is provided with a bracket. The storage device 11 is fixed above the axis of the chuck wheel 31 by a bracket and is used for storing the test tube 12. The blocking device 23 is located between the storage device 11 and the catch wheel 31, and takes out the test tubes 12 one by one from the storage device 11 and transfers them onto the catch wheel 31. A gap is reserved between the clamping wheel 31 and the bottom plate, and the clamping wheel 31 is used for transferring the test tube 12 after obtaining the test tube 12. The label separating device is fixed on the bottom plate, is used for separating the label from the label paper and sending the label to the transfer track of the test tube 12 in the card wheel 31. Each sensing device is used for identifying the working states of the storage device 11, the blocking device 23, the card wheel 31 and the label separating device and transmitting the information to the signal processing device 21 for processing.

In a preferred embodiment, the storage unit 11 is used for storing the test tubes 12, and the storage unit 11 has a length that can stably hold the test tubes 12. The storage unit 11 is generally formed in a funnel shape, and may be provided in a V-shape in cross section. The storage unit 11 should be at least higher than the axis of the click wheel 31. The lower part of the storage device 11 is provided with an opening, which is slightly larger than the diameter of the test tube 12. At the opening of the storage device 11, a channel is provided, which is located between the storage device 11 and the chuck wheel 31, the width of the channel is slightly larger than the diameter of the test tube 12, and the outlet of the channel is directed to the chuck wheel 31.

The blocking device 22 is arranged on the passage, the blocking device 22 at least comprises a front baffle and a rear baffle, and the front baffle and the rear baffle alternately open and close the passage under the traction of the driving device. Preceding baffle and backplate homoenergetic stretch out to the passageway in, preceding baffle is used for the export of shutoff passageway, and the backplate is used for the entry of shutoff passageway, is used for controlling test tube 12 single falling. And can hold next test tube 12 between preceding baffle and the backplate, the straight-line distance of preceding baffle and backplate is roughly between 1 ~ 2 times test tube 12 diameters promptly. The driving device can be respectively arranged at one end of the front baffle and one end of the rear baffle, particularly, the two ends of the cross rod are respectively connected with the front baffle and the rear baffle, the driving device is arranged on the cross rod, and the cross rod drives the front baffle and the rear baffle to move.

In a preferred embodiment, the chuck wheel 31 is provided with a plurality of retraction mechanisms for retracting the test tubes 12 in the axial direction, each retraction mechanism includes a slot opening outward, a latch 32 capable of opening or closing the slot opening, and a driving device for driving the latch 32 to move. The shaft center of the clamping wheel 31 is directly or indirectly connected to the bracket, and the clamping wheel 31 can rotate along the shaft center. One or more card wheels 31 can be arranged, but when one card wheel 31 is arranged, enough axial length for stably supporting the test tube 12 for label pasting must be ensured. Two test tubes 12 are arranged, and the two test tubes should be respectively located at two sides of the label sticking position of the test tube 12, and the slots on the different card wheels 31 correspond one to one. The click wheel 31 is generally circular, but may be a cylinder having a polygonal cross section. The clamping wheels 31 are provided with a plurality of axial grooves along the circumference, the axial grooves are used as the above-mentioned slots, the opening of each axial groove should be larger than the radius of the test tube 12, and the inner width of each axial groove can accommodate one test tube 12. The cross section of the axial groove may be V-shaped, or may be other shapes, and may be provided in particular as a circle. Generally, the axial grooves should be uniformly arranged along the axis and have uniform size.

The openings of the axial grooves are provided with clamping blocks 32, and each clamping block 32 is connected with a driving device. A sensing device is provided in each axial slot and is connected to the signal processing device 21 for controlling the movement of the latch 32. A driving device is connected to the axial center of the chuck wheel 31, and a motor may be directly provided to drive the chuck wheel 31. A gap is reserved between the clamping wheel 31 and the bottom plate, interference between the clamping wheel 31 and the bottom plate in the rotating process is avoided, and meanwhile, the gap is reserved for sticking and pressing the label. The fixture blocks 32 are two racks respectively located at two ends of the opening of the axial groove, two ends of the opening of the axial groove are provided with gears, the other ends of the racks are connected to the gears, and the gears are connected with a driving device. The rack should be provided with a limit to prevent the rack from separating from the opening of the axial groove.

In a preferred embodiment, elastic members 51 are provided at a position below the chuck wheel 31 for pressing the label stuck on the test tube 12. One end of each elastic component 51 is elastically connected with the bottom plate, and the end of each elastic component 51 which is not connected is higher than the gap between the clamping wheel 31 and the bottom plate. When the chuck wheel 31 rotates with the test tube 12, the elastic members 51 can contact and apply a certain pressure to the wall of the test tube 12. The length of each elastic component 51 along the direction of the card wheel 31 should be greater than the width of the label and face the position of the label, so as to ensure that the card wheel 31 can press the elastic component 51 after driving the test tube 12 to stick and take away the label.

In a preferred embodiment, the label separator is located near the gap between the wheel 31 and the base plate for separating the labels from the label paper on the label tape 43 and feeding the labels into the transfer track of the test tubes 12 in the wheel 31. The label separating device comprises a rotating wheel 41 and a separating block 42, wherein the rotating wheel 41 is hinged with the bracket and is provided with a driving device. The separating block 42 is attached to the base plate with a gap therebetween through which the label tape 43 can pass. A damper may be provided in the gap between the separating block 42 and the base plate to keep the label tape 43 in a taut state when the rotating wheel 41 pulls the label paper. And one end of the separating block 42 has a projection, which is generally acute, for separating the label and the label paper. The bulge is close to the gap between the card wheel 31 and the bottom plate, so that the separated label can be suspended in the gap between the card wheel 31 and the bottom plate, and the test tube 12 on the card wheel 31 can be adhered and the label can be taken away by rotating the card wheel 31. The rotating wheel 41 is provided with a slot for fixing the label paper, and the label tape 43 is driven by rotating the rotating wheel 41. The separating block 42 is fixed to the base plate by a snap fit, facilitating the mounting and removal of the label tape 43.

As a preferred embodiment, a sensing means is provided between the elastic member 51 and the tag detaching means, and a sensing means is provided at the other side of the elastic member 51 and both connected to the signal processing means 21. An induction device is arranged between the elastic component 51 and the label separation device and used for inducing the label and monitoring whether the label is separated and then moves to a certain position. And the other side is provided with a sensing device which can monitor whether the label is smoothly adhered to the label or not, and the signal processing device 21 is utilized to judge whether the clamping block 32 is loosened to enable the test tube 12 to fall down or not.

In a preferred embodiment, an audio device 24 is further provided on the stand, and the audio device 24 is connected to the signal processing device 21. The sound device 24 can be used for voice broadcasting to reflect the working condition of the automatic labeling device for the test tube 12 in real time, so that the user experience is improved, and the occurrence of excessive labor or error conditions is avoided. Or can be set as a light reminding device to prompt the corresponding state

In a preferred embodiment, each of the sensing devices is wirelessly connected to the signal processing device 21, and may be in a form of an area network or a bluetooth connection. The drive device is generally a small motor, a steering engine, a stepping motor, or the like. For more precise and effective control, a stepping motor should be used, and the rotor should be stationary when the motor is stopped.

In the present embodiment, two clamping wheels 31 are provided, 4 axial grooves are respectively provided on the two clamping wheels 31, and the cross section of the axial groove is a semicircle with a radius equal to the diameter of the test tube 12. The same support rod is connected and fixed at the axle center position of the two clamping wheels 31, and the support rod is connected with a longitudinal rod and fixed on one end of the storage device 11. The catch wheel 31 may thus be indirectly connected to the rack, since the storage unit 11 is connected to the rack. The storage device 11 and the label separating device are both located between the two card wheels 31, and the position of the label separating device is determined according to the position of the test tube 12 to which the label needs to be attached. In the separating block 42, the cross section of the separating block 42 is a right triangle, and the projection of the separating block is an acute angle of the right triangle, and the separation of the label and the label paper is realized through the acute angle. The elastic member 51 should be disposed at a position behind the test tube 12 to which the label is attached, and the elastic member 51 is two rows of spring pieces, one end of which is connected to the base plate and the other end of which is suspended. The suspended end should be inclined away from the label to avoid abrasion of the label while pressing the label on the test tube 12.

In the present embodiment, the sensing devices are 7 sensors 23. The sensors 23 may be photoelectric proximity switches, inductive proximity switches, capacitive proximity switches, hall proximity switches, laser ranging sensors, etc., as long as object identification and mutual identification are ensured. In the same automatic test tube labeling device, the same type of sensor is generally used to realize mutual identification. One of the sensors 23 is located on the front bezel for identifying the location of the axial slot on the card wheel 31, referred to as the first sensor. One of the sensors 23 is located between the label separating device and the card wheel 31, above the base plate, for identifying the separated labels, called the second sensor. A further sensor 23, called the third sensor, is located on the side of the elastic element 51 remote from the label separating device, to identify whether the test tube 12 in the axial slot is completely labelled. The remaining four sensors 23 are located in the axial slots to identify whether there are test tubes 12 in the axial slots, called fourth sensors. The serial number designation of the sensor 23 is for convenience of description only and is not otherwise specifically limited. Furthermore, the directions of left, right, up, down, clockwise, counterclockwise and the like are all directions viewed from the top of fig. 1, and are only for convenience of description, and do not represent specific directional positions. The device for automatically sticking the label of the test tube 12 is provided with an acoustic device 24 which is connected to the signal processing device 21 and plays the voice according to the actual situation. And the signal processing means 21 may be arranged inside the body.

Before the device for automatically pasting the label of the test tube 12 is started, the cross rod rotates anticlockwise, and the front baffle extends out to seal the outlet of the channel. The storage device 11 is used to stack test tubes 12, and due to the arrangement of the passage structure, one of the test tubes 12 will fall between the positions of the front and rear shutters. When the clamp wheel 31 rotates counterclockwise under the driving of the supporting rod, the first sensor and the fourth sensor cooperate to sense whether the test tube 12 is on the clamp wheel 31 or not, and transmit the signal to the signal processing device 21. When the first sensor is opposite to the fourth sensor, the signal processing device 21 first stops the motion of the clamp wheel 31 after judging, and then judges whether the test tube 12 is in the axial groove or not according to the signal of the fourth sensor. When the test tube 12 is judged to be present, the chuck wheel 31 continues to rotate. When it is judged that there is no test tube 12 in the chuck wheel 31, the cross bar of the blocking device 22 rotates clockwise, the rear baffle extends out of the inlet of the blocking passage, and the front baffle contracts to open the outlet of the passage. At this point the tube 12 between the front and rear baffles falls by gravity and falls into the axial slot of the click wheel 31. When the signal processing device 21 does not receive the signal that the fourth sensor senses the presence of the test tube 12 in the axial slot, the transverse rod of the blocking device 22 is rotated clockwise or counterclockwise repeatedly for 5 times, and the signal processing device 21 still does not receive the corresponding signal and broadcasts "please check whether to place the test tube" through the sound device 24. When the fourth sensor senses the existence of the test tube 12 in the axial groove, the signal is transmitted to the signal processing device 21, and the signal processing device 21 sends a signal to drive the fixture block 32 to act, so as to seal the opening of the axial groove. So that the test tube 12 does not fall out of the axial slot during the subsequent rotation of the click wheel 31. At the same time, the cross bar in the barrier 22 rotates counterclockwise, the tailgate retracts to open the access entrance, and the front tailgate extends to close the access exit in preparation for the next release of the test tube 12.

In the label separating apparatus, the label tape 43 is passed through the gap between the separating block 42 and the base plate, passed around the projection, and connected to the reel 41. The label tape 43 is connected to the clamping groove of the rotating wheel 41, the rotating wheel 41 can drive the label tape 43, the label tape 43 realizes the separation of labels and label paper at the protruding position, and part of the label paper is suspended. The wheel 41 rotates and the label paper continues to advance after it is separated from the label paper until the second sensor is covered. The second sensor sends a signal to the signal processing device 21, and the signal processing device 21 controls the rotating wheel 41 to be stationary, at this time, the label is stationary, and a part of the label is stuck on the label paper and is suspended below the clamping wheel 31. If there is no label above the second sensor of the rotary wheel 31, the signal processing device 21 does not receive the signal of the label sensed by the signal of the second sensor for more than 20s, and at this time, the acoustic device 24 will broadcast "please check the label paper".

When the label separating apparatus is operated smoothly, the chucking wheel 31 is rotated, and the chucking wheel 31 rotates together with the test tube 12. When the card wheel 31 rotates to the position of the label, the test tube 12 is stuck with the label, the card wheel 31 continues to rotate, the label and the label paper are completely separated, and the label is positioned on the test tube 12. Continuing to rotate the click wheel 31, the test tube 12 passes through the position of the elastic member 51. During the rotation of the chuck wheel 31, the elastic component 51 performs compression fitting on the label on the test tube 12. Then test tube 12 comes the third sensor position, and when signal processing device 21 received third sensor and fourth sensor and had the signal of sensing the label, fixture block 32 on the drive card wheel 31 was opened, and the opening in axial groove was opened, and test tube 12 was because gravity drops, accomplished the pasting of test tube 12 label. When the card wheel 31 continues to rotate, the label of the following test tube 12 continues to be pasted.

Of course, the design creation is not limited to the above embodiments, and the combination of different features of the above embodiments can also achieve good effects. Those skilled in the art can make equivalent changes or substitutions without departing from the spirit of the present invention, and such equivalent changes or substitutions are included in the scope defined by the claims of the present application.

Claims

1. The utility model provides an automatic paste device of test tube label which characterized in that:

comprises a bottom plate, a storage device (11), a blocking device (22), a card wheel (31), a label separating device, a signal processing device (21) and a plurality of sensing devices;

the bottom plate is positioned at the bottom and is provided with a bracket;

the storage device (11) is fixed above the axle center of the clamping wheel (31) through a bracket and is used for storing the test tube (12);

the blocking device (22) is positioned between the storage device (11) and the clamping wheel (31), and the test tubes (12) are taken out from the storage device (11) one by one and transferred onto the clamping wheel (31);

a gap is reserved between the clamping wheel (31) and the bottom plate, and the clamping wheel (31) is used for transferring the test tube (12) after obtaining the test tube (12);

the label separating device is fixed on the bottom plate, is used for separating the label from the label paper and sending the label to a transfer track of the test tube (12) in the card wheel (31);

each sensing device is used for identifying the working states of the storage device (11), the blocking device (22), the card wheel (31) and the label separating device and transmitting information to the signal processing device (21) for processing;

the test tube detection device is characterized in that a plurality of retraction mechanisms for retracting the test tube (12) are arranged on the clamp wheel (31) along the axial direction, each retraction mechanism comprises a slot position which is opened outwards, a clamping block (32) which can open or close an opening of the slot position and a driving device for driving the clamping block (32) to move, a plurality of elastic assemblies (51) which incline upwards are arranged below the clamp wheel (31), one end of each elastic assembly (51) is elastically connected with the bottom plate, and the end, which is not connected, of each elastic assembly (51) is higher than a gap between the clamp wheel (31) and the bottom plate.

2. The apparatus for automatically labeling test tubes according to claim 1, wherein: the number of the clamping wheels (31) is not less than 2, the distance between every two adjacent clamping wheels (31) is less than the length of the test tube (12), the axle center of each clamping wheel (31) is located on the same axis, and the groove positions between different clamping wheels (31) are in one-to-one correspondence.

3. The apparatus for automatically labeling test tubes according to claim 2, wherein: each clamping wheel (31) is a cylinder with a plurality of axial grooves formed in the circumference, the axial grooves serve as the groove positions, the opening of each axial groove is larger than the diameter of the test tube (12), the section line of each axial groove is a semicircular arc, an induction device is arranged in each axial groove, the axis of each clamping wheel (31) is fixedly connected with a supporting rod, the supporting rod is hinged to a support, and the support is connected with a driving device.

4. The apparatus for automatically labeling test tubes according to claim 3, wherein: the cross-section of strorage device (11) is the V word form, the opening of strorage device (11) is not less than the diameter of test tube (12), the opening part of strorage device (11) is equipped with the passageway, the directional card wheel (31) axis of passageway slope, the width of passageway is not less than test tube (12) diameter.

5. An apparatus for automatically labeling test tubes according to any one of claims 2 to 4, wherein: the blocking device (22) comprises a front baffle and a rear baffle which are located on a channel of the storage device (11), the front baffle and the rear baffle are alternately opened and closed under the traction of the driving device, the distance between the front baffle and the rear baffle is 1-2 times of the diameter of the test tube (12), and an induction device is arranged on the front baffle.

6. An apparatus for automatically labeling test tubes according to any one of claims 2 to 4, wherein: the label separating device comprises a rotating wheel (41) and a separating block (42), wherein the rotating wheel (41) is hinged with the support, the separating block (42) is connected to the bottom plate, a gap is reserved between the separating block and the bottom plate, one end of the separating block (42) is provided with a protrusion, and the protrusion faces the gap between the clamping wheel (31) and the bottom plate.

7. The apparatus for automatically labeling test tubes according to claim 6, wherein: a sensing device is arranged between each elastic component (51) and the separating block (42), the sensing device is arranged on the other side of each elastic component (51) and is connected to the signal processing device (21), the length of each elastic component (51) along the axial direction of the clamping wheel (31) is not less than the width of the label, and each elastic component (51) is a spring piece.

8. The apparatus for automatically labeling test tubes according to claim 7, wherein: the fixture blocks (32) are two racks respectively positioned at two ends of the opening of the axial groove, gears are arranged at two ends of the opening of the axial groove, the other ends of the racks are connected to the gears, and the gears are connected with a driving device.

9. The apparatus for automatically labeling test tubes according to claim 8, wherein: the support is provided with an acoustic device (24), and the acoustic device (24) is connected with the signal processing device (21).