Automatic tube changing mechanism for detection device

Abstract

The present invention relates to an automatic tube changing mechanism for a detection device, comprising: a storage bin mechanism, a tube conveying mechanism, a plug conveying mechanism, and a waste tube collection mechanism; the tube conveying mechanism includes a tube grasping mechanism and a vertical movement mechanism. The tube grasping mechanism is arranged below the storage bin mechanism and is used for grasping the tubes taken out from the storage bin mechanism. The vertical movement mechanism is connected to the tube grasping mechanism and is used for conveying the tubes grasped by the tube grasping mechanism to align them with the plug conveying mechanism. The waste tube collection mechanism is arranged below the tube grasping mechanism. The automatic tube changing mechanism provided by the present invention does not require manual intervention, can realize full-automatic tube changing, and can ensure that there are no problems such as tube jamming and inaccurate feeding during the tube changing process. At the same time, corresponding sensors are added to further ensure the stable and reliable operation of the automatic tube changing mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of material detection, and particularly to an automatic tube changing mechanism for a detection device. Background Art

[0002] In food, medical, chemical, and security inspection fields, etc., detection equipment and devices are used, and these detection equipment and devices basically use material tubes as the core components of their detection devices and equipment. As a tubular reaction element, the material tube is usually a tubular object such as a test tube or a capillary tube filled with reaction substances inside. In the state of working for a long time, due to the depletion of the internal reaction substances, it needs to be replaced frequently. Based on this situation, if the method of manually replacing the material tube is continued, not only the work efficiency is reduced, but also the cost is increased. Therefore, a device capable of automatically changing tubes is needed. Summary of the Invention

[0003] In view of the above-mentioned drawbacks existing in the prior art, the present invention provides an automatic tube changing mechanism for a detection device, including:

[0004] a material storage bin mechanism, a material tube conveying mechanism, a plug conveying mechanism, and a waste material tube collection mechanism;

[0005] The material tube conveying mechanism includes a material tube grasping mechanism and a vertical movement mechanism. The material tube grasping mechanism is arranged below the material storage bin mechanism and is used for grasping the material tube taken out from the material storage bin mechanism. The vertical movement mechanism is connected to the material tube grasping mechanism and is used for conveying the material tube grasped by the material tube grasping mechanism to align it with the plug conveying mechanism. The waste material tube collection mechanism is arranged below the material tube grasping mechanism.

[0006] According to an embodiment of the present invention, the material storage bin mechanism includes a material storage bin, and the material storage bin includes an upper material storage bin and a lower material storage bin. The upper material storage bin and the lower material storage bin are communicated. A slope is provided at the bottom end of the upper material storage bin, and the lower part of the slope is communicated with the lower material storage bin. An outlet is provided at the bottom end of the lower material storage bin. A material taking roller is arranged in the lower material storage bin, and the material taking roller is arranged above the outlet. The cross-sectional area of the material taking roller is greater than or equal to the area of the outlet. Grooves are provided on the material taking roller; the material taking roller is connected to a first driving device, and the first driving device is used for driving the material taking roller to rotate.

[0007] According to an embodiment of the present application, the shape of the groove matches the shape of the material tube, and the material tube can be embedded in the groove.

[0008] According to an embodiment of the present application, the longitudinal section of the lower material storage bin is trapezoidal, and the length of the top end of the lower material storage bin is greater than the length of the bottom end of the lower material storage bin.

[0009] According to an embodiment of the present application, the angle range of the slope is 3-7°. If the angle is too small, the material tube cannot slide down; if the angle is too large, the material tubes are prone to accumulation.

[0010] According to an embodiment of the present application, it further includes a baffle. The side of the storage bin is open, and the baffle is used to block the opening. The baffle can be used to add a material pipe into the storage bin.

[0011] According to an embodiment of the present invention, the material pipe grasping mechanism includes a first ball screw pair, a second driving device, a first guide rail, a fixed jaw and a movable jaw. A moving platform is connected to the first ball screw pair. The first guide rail is installed on the fixed jaw. The moving platform is slidably connected to the first guide rail. A movable jaw is connected to the moving platform. The second driving device is connected to the first ball screw pair and is used to drive the first ball screw pair to rotate so as to drive the moving platform to slide within the first guide rail. The first guide rail is fixed on the vertical motion mechanism.

[0012] According to an embodiment of the present invention, the material pipe grasping mechanism further includes a first sensor. The first sensor is arranged on one side of the moving platform and is used to sense the position of the moving platform to control whether the second driving device operates.

[0013] According to an embodiment of the present invention, the vertical motion mechanism includes a second ball screw pair, a third driving device and a second guide rail. A first slider is connected to the second ball screw pair. A vertical moving platform is fixed to the first slider. The vertical moving platform is slidably connected to the second guide rail. The fixed jaw is installed on the vertical moving platform. The third driving device is connected to the second ball screw pair and is used to drive the second ball screw pair to rotate so as to drive the vertical moving platform to slide within the second guide rail.

[0014] According to an embodiment of the present invention, the vertical motion mechanism further includes a second sensor. The second sensor is arranged on one side close to the initial position of the first slider and is used to sense the position of the first slider to control whether the third driving device operates.

[0015] According to an embodiment of the present invention, the plug conveying mechanism includes a third ball screw pair, a fourth driving device and a third guide rail. A second slider is connected to the third ball screw pair. The second slider is slidably connected to the third guide rail. A plug is connected to the second slider. The fourth driving device is connected to the third ball screw pair and is used to drive the third ball screw pair to rotate so as to drive the second slider to slide within the third guide rail.

[0016] According to an embodiment of the present invention, the plug conveying mechanism further includes a third sensor. The third sensor is arranged on one side close to the initial position of the plug and is used to sense the position of the second slider to control whether the fourth driving device operates.

[0017] According to an embodiment of the present invention, the plug conveying mechanism further includes a fourth sensor. The fourth sensor is arranged above the plug and is used to detect whether there is a material pipe on the plug.

[0018] According to an embodiment of the present invention, the waste pipe collection mechanism includes a chute and a waste box communicated with the chute, and the chute is arranged below the pipe grabbing mechanism.

[0019] According to an embodiment of the present invention, the first guide rail and the second guide rail are horizontally arranged, and the third guide rail is longitudinally arranged.

[0020] According to an embodiment of the present invention, the first driving device, the second driving device, the third driving device and the fourth driving device are all motors.

[0021] According to an embodiment of the present invention, the first sensor, the second sensor and the third sensor are all position sensors, and the fourth sensor is a photoelectric switch sensor.

[0022] The specific working mode of the present invention is as follows:

[0023] The pipes are batch-loaded into the storage bin mechanism. When receiving the signal for replacing the pipe sent by the detection device, the first driving device drives the material-taking roller to rotate, and one pipe is taken out through the rotation of the material-taking roller in the storage bin mechanism. The pipe falls into the pipe grabbing mechanism. The second driving device drives the movable claw to clamp the pipe. Then, the vertical movement mechanism moves upward under the drive of the third driving device to concentrically align the pipe with the plug on the plug conveying mechanism. The plug moves forward under the drive of the fourth driving device to grab the pipe. After the assembly of the pipe and the plug is completed, the vertical movement mechanism moves downward under the drive of the third driving device. When the second sensor detects the first slider, the vertical movement mechanism stops moving. At the same time, the plug continues to move forward to the specified position under the drive of the fourth driving device.

[0024] After the service life of the pipe is exhausted, the fourth driving device drives the plug to move backward. After moving to the initial position, the third driving device drives the vertical movement mechanism to move upward to the specified position. After the movable claw clamps the pipe, the fourth driving device drives the plug to move backward to separate the plug from the pipe until the third sensor detects the second slider and then the plug stops moving; the pipe moves downward with the vertical movement mechanism until the second sensor detects the first slider and then stops. Subsequently, the second driving device drives the movable claw to release the pipe, and the pipe falls into the waste box along the chute. Thus, a complete operation of loading and taking out the pipe by the automatic pipe changing mechanism is completed, and all mechanisms are reset to the initial position for the next operation.

[0025] The beneficial effects of the present invention are as follows:

[0026] The automatic tube-changing mechanism provided by the present invention has a simple structure. By the mutual cooperation among the storage bin mechanism, the tube conveyor mechanism, the plug conveyor mechanism and the waste tube collection mechanism, it can achieve full-automatic tube changing without manual intervention. The design of the storage bin mechanism can ensure that there are no problems such as material jamming and inaccurate feeding during the tube-changing process. At the same time, corresponding sensors are added to further ensure the stable and reliable operation of the automatic tube-changing mechanism. Brief Description of the Drawings

[0027] Figure 1 Schematic perspective view of the automatic tube-changing mechanism for a detection device according to an embodiment of the present invention;

[0028] Figure 2 Schematic structural view of the storage bin mechanism according to an embodiment of the present invention;

[0029] Figure 3 Schematic structural view of the storage bin according to an embodiment of the present invention;

[0030] Figure 4 Schematic structural view of the tube conveyor mechanism according to an embodiment of the present invention;

[0031] Figure 5 Schematic structural view of the plug conveyor mechanism according to an embodiment of the present invention;

[0032] Figure 6 Schematic structural view of the waste tube collection mechanism according to an embodiment of the present invention.

[0033] Explanation of the main element symbols: 1. Storage bin mechanism; 11. Storage bin; 111. Upper storage bin; 112. Lower storage bin; 113. Discharge port; 12. Material-taking roller; 13. First driving device; 10. Security inspection machine main body; 11. Outer shell; 12. Inner side plate of the channel; 13. Main body frame; 2. Tube conveyor mechanism; 21. Tube-grabbing mechanism; 210. First ball screw pair; 211. Second driving device; 212. First guide rail; 213. Fixed clamping jaw; 214. Movable clamping jaw; 215. Moving platform; 216. First sensor; 22. Vertical movement mechanism; 220. Second ball screw pair; 221. Third driving device; 222. Second guide rail; 223. First slider; 224. Vertical moving platform; 225. Second sensor; 3. Plug conveyor mechanism; 30. Third ball screw pair; 31. Fourth driving device; 32. Third guide rail; 33. Second slider; 34. Plug; 35. Third sensor; 36. Fourth sensor; 4. Waste tube collection mechanism; 41. Chute; 42. Waste box.

[0034] The above explanation of the main element symbols further elaborates on the present invention in conjunction with the drawings and specific embodiments. Detailed implementation manners

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

[0037] In addition, in the embodiments of the present invention, words such as "according to an embodiment of the present application" or "preferably" are used to give examples, illustrations or explanations. Any embodiment or design solution described as "according to an embodiment of the present application" or "preferably" in the embodiments of the present invention should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "according to an embodiment of the present application" or "preferably" is intended to present relevant concepts in a specific manner.

[0038] Refer to the attached Figure 1 As shown, an embodiment of the present invention provides an automatic tube changing mechanism for a detection device. In addition to being applied to ordinary detection equipment and devices in fields such as food, medical, chemical, and security inspection, it can also be integrally installed in a turnstile to meet the automatic tube changing requirements of the dangerous goods detection device in the turnstile passage. Even when the flow of people or freight volume is large, it can achieve rapid tube changing without delaying the security inspection efficiency. The automatic tube changing mechanism includes a storage bin mechanism 1, a tube conveying mechanism 2, a plug conveying mechanism 3, and a waste tube collection mechanism 4;

[0039] The tube conveying mechanism 2 includes a tube grasping mechanism 21 and a vertical movement mechanism 22. The tube grasping mechanism 21 is arranged below the storage bin mechanism 1 and is used to grasp the tubes taken out from the storage bin mechanism 1. The vertical movement mechanism 22 is connected to the tube grasping mechanism 21 and is used to convey the tubes grasped by the tube grasping mechanism 21 to align them with the plug conveying mechanism 3. The waste tube collection mechanism 4 is arranged below the tube grasping mechanism 21.

[0040] The material pipes to be reacted are batch-loaded into the storage bin mechanism 1. When a new material pipe needs to be loaded, that is, when the signal for replacing the material pipe sent by the detection device is received, the material pipe falls from the storage bin mechanism 1 into the material pipe grasping mechanism 21. The material pipe grasping mechanism 21 grasps the material pipe and moves upward through the vertical motion mechanism 22 to concentrically align the material pipe with the plug conveying mechanism 3. Then the plug conveying mechanism 3 moves forward and inserts into the material pipe to grasp the material pipe. During operation, the plug conveying mechanism 3 inserts into the material pipe to block the opening of the material pipe. When the material pipe is used up and a new material pipe needs to be replaced, the plug conveying mechanism 3 moves backward and separates from the material pipe. Then after the vertical motion mechanism 22 moves the material pipe down to the designated position, the material pipe grasping mechanism 21 releases the material pipe, and the material pipe falls into the waste material pipe collection mechanism 4.

[0041] The present invention utilizes the storage bin mechanism 1 to automatically obtain the material pipe, the material pipe grasping mechanism 21 to automatically grasp or release the material pipe, and at the same time utilizes the vertical motion mechanism 22 to send the material pipe to the concentric alignment with the plug conveying mechanism. Then the plug conveying mechanism 3 moves to block the material pipe, rather than the plug conveying mechanism 3 remaining stationary and the material pipe being directly conveyed to be closely attached to the plug conveying mechanism 3, so as to avoid the damage of the material pipe caused by excessive force and also avoid the problem of insecure fitting caused by insufficient force, thereby quickly making the plug conveying mechanism 3 block the material pipe more tightly and meeting the requirements of some detection devices and equipment with time limit requirements or large detection quantities.

[0042] Therefore, the present invention adopts the mutual cooperation among the storage bin mechanism 1, the material pipe conveying mechanism 2, the plug conveying mechanism 3 and the waste material pipe collection mechanism 4, so that the tube replacement work can be autonomously completed by the automatic tube replacement mechanism of the present invention throughout the process, without relying on manual labor and without disassembling the detection equipment and devices, greatly improving the work efficiency.

[0043] To solve the problems such as material jamming and inaccurate material feeding existing in most automatic tube replacement mechanisms due to the instability of the automatic tube replacement mechanism, as Figures 2-3 shown, the storage bin mechanism 1 of the present invention includes a storage bin 11. The storage bin 11 includes an upper storage bin 111 and a lower storage bin 112. The upper storage bin 111 and the lower storage bin 112 are communicated. A slope is provided at the bottom end of the upper storage bin 111, and the lower part of the slope is communicated with the lower storage bin 112. An outlet 113 is provided at the bottom end of the lower storage bin 112. A material taking roller 12 is provided in the lower storage bin 112. The material taking roller 12 is arranged above the outlet 113. The cross-sectional area of the material taking roller 12 is greater than or equal to the area of the outlet 113. Grooves are provided on the material taking roller 12. The material taking roller 12 is connected with a first driving device 13, and the first driving device 13 is used to drive the material taking roller 12 to rotate.

[0044] The lower storage bin 112 provided in the storage bin mechanism 1 is connected to the lower slope of the upper storage bin 111, which can ensure that the material pipe accurately falls into the material taking roller 12. The grooves provided on the material taking roller 12 can ensure that only one material pipe is taken out each time, with accurate feeding and no problems such as material jamming. Specifically, the angle range of the slope is 3-7°. If the angle is too small, the material pipe cannot slide down, and if the angle is too large, it will cause the material pipes to pile up.

[0045] Preferably, the shape of the groove matches the shape of the material pipe, and the material pipe can be embedded in the groove to ensure that only one material pipe is taken out each time, with accurate feeding and no problems such as material jamming.

[0046] Preferably, the longitudinal section of the lower storage bin is trapezoidal, and the length of the top end of the lower storage bin is greater than the length of the bottom end of the lower storage bin.

[0047] Preferably, it further includes a baffle. There is an opening on the side of the storage bin 11, and the baffle is used to block the opening. The baffle can be used to add material pipes to the storage bin 11.

[0048] The material pipe gripping mechanism 21 is used to grip the material pipe taken out from the storage bin mechanism 1, and cooperates with the vertical movement mechanism 22 to transport the material pipe to the plug conveying mechanism 3. Preferably, as Figure 4 shown, the material pipe gripping mechanism 21 includes a first ball screw pair 210, a second driving device 211, a first guide rail 212, a fixed jaw 213 and a movable jaw 214. A moving platform 215 is connected to the first ball screw pair 210. The first guide rail 212 is installed on the fixed jaw 213. The moving platform 215 is slidably connected to the first guide rail 212. A movable jaw 214 is connected to the moving platform 215. The second driving device 211 is connected to the first ball screw pair 210 and is used to drive the first ball screw pair 210 to rotate to drive the moving platform 215 to slide within the first guide rail 212. The first guide rail 212 is fixed on the vertical movement mechanism 22.

[0049] Preferably, as Figure 4 shown, the material pipe gripping mechanism 21 further includes a first sensor 216. The first sensor 216 is arranged on one side of the moving platform 215 and is used to sense the position of the moving platform 215 to control whether the second driving device operates.

[0050] Preferably, as Figure 4As shown in the figure, the vertical motion mechanism 22 includes a second ball screw pair 220, a third driving device 221, and a second guide rail 222. A first slider 223 is connected to the second ball screw pair 220. A vertical moving platform 224 is fixed to the first slider 223. The vertical moving platform 224 is slidably connected to the second guide rail 222. The fixed jaw 213 is installed on the vertical moving platform 224. The third driving device 221 is connected to the second ball screw pair 220 and is used to drive the second ball screw pair 220 to rotate so as to drive the vertical moving platform 224 to slide within the second guide rail 222.

[0051] Preferably, as Figure 4 shown in the figure, the vertical motion mechanism 22 further includes a second sensor 225. The second sensor 225 is arranged on one side close to the initial position of the first slider 223 and is used to sense the position of the first slider 223 to control whether the third driving device 221 operates.

[0052] Preferably, as Figure 5 shown in the figure, the plug conveying mechanism 3 includes a third ball screw pair 30, a fourth driving device 31, and a third guide rail 32. A second slider 33 is connected to the third ball screw pair 30. The second slider 33 is slidably connected to the third guide rail 32. A plug 34 is connected to the second slider 33. The fourth driving device 31 is connected to the third ball screw pair 30 and is used to drive the third ball screw pair 30 to rotate so as to drive the second slider 33 to slide within the third guide rail 32.

[0053] The plug conveying mechanism 3 is not only a conveying mechanism that conveys the plug to be concentrically aligned with the material pipe. At the same time, the plug 34 provided thereon can block the open end of the material pipe. At the same time, the plug is provided with a through hole. After the plug blocks the material pipe, a closed gas path is formed among the material pipe, the plug, and the reactant to be measured, which can enable the reactant in the material pipe to directly enter the material pipe, can react better with the object to be measured, produce a more accurate detection result, will not enter the inside of the detection device and remain in the detection device, affecting the subsequent detection result, and ensures the accuracy of the detection result.

[0054] Preferably, as Figure 5 shown in the figure, the plug conveying mechanism 3 further includes a third sensor 35. The third sensor 35 is arranged on one side close to the initial position of the plug 34 and is used to sense the position of the second slider 33 to control whether the fourth driving device 31 operates.

[0055] Under the drive of the fourth driving device 31, the plug conveying mechanism 3 moves forward to insert the plug 34 into the material pipe; also under the drive of the fourth driving device 31, it moves backward to pull out the plug 34 from the material pipe. When the third sensor 35 senses the position of the second slider 33, the fourth driving device stops operating and the plug conveying mechanism 3 stops moving.

[0056] Preferably, asFigure 5 As shown, the plug conveying mechanism 3 further includes a fourth sensor 36. The fourth sensor 36 is arranged above the plug 34 and is used to detect whether there is a material pipe on the plug 34.

[0057] Preferably, as Figure 6 shown, the waste material pipe collecting mechanism 4 includes a chute 41 and a waste box 42 communicated with the chute 41. The chute 41 is arranged below the material pipe grasping mechanism 21.

[0058] Specifically, the first guide rail 212 and the second guide rail 222 are horizontally arranged, and the third guide rail 32 is longitudinally arranged.

[0059] Specifically, the first driving device 13, the second driving device 211, the third driving device 221 and the fourth driving device 31 are all motors.

[0060] In order to further ensure the stable and reliable operation of the automatic pipe changing mechanism, specifically, the first sensor 216, the second sensor 225 and the third sensor 35 are all position sensors, and the fourth sensor 36 is a photoelectric switch sensor.

[0061] The specific working mode of the present invention is as follows:

[0062] The material pipes are batch loaded into the storage bin mechanism 1. When receiving the signal of replacing the material pipe sent by the detection device, that is, when the detection device uses up one material pipe and needs to replace a new one, the first driving device 13 drives the material taking roller 12 to rotate. One material pipe is taken out from the storage bin mechanism 1 through the rotation of the material taking roller 12, and the material pipe falls into the material pipe grasping mechanism 21. The second driving device 211 drives the movable clamping jaw 214 to clamp the material pipe tightly. Then, the vertical movement mechanism 22 moves upward under the drive of the third driving device 221 to concentrically align the material pipe with the plug 34 on the plug conveying mechanism 3. The plug moves forward under the drive of the fourth driving device 31 to grasp the material pipe. After the assembly of the material pipe and the plug 34 is completed, the vertical movement mechanism 22 moves downward under the drive of the third driving device 221. When the second sensor 225 detects the first slider 223, the vertical movement mechanism 22 stops moving. At the same time, the plug 34 continues to move forward to the specified position under the drive of the fourth driving device 31.

[0063] After the service life of the material pipe is exhausted, the fourth driving device 31 drives the plug 34 to move backward. After moving to the initial position, the third driving device 221 drives the vertical movement mechanism 22 to move upward to the specified position. After the movable clamping jaw 214 clamps the material pipe, the fourth driving device 31 drives the plug 34 to move backward to separate the plug 34 from the material pipe. Until the third sensor 35 detects the second slider 33, the plug 34 stops moving; the material pipe moves downward with the vertical movement mechanism 22 until the second sensor 225 detects the first slider 223 and then stops. Subsequently, the second driving device 211 drives the movable clamping jaw 214 to release the material pipe, and the material pipe falls into the waste box 42 along the chute 41. Thus, a complete operation of loading and removing the pipe by the automatic pipe changing mechanism is completed, and all mechanisms are reset to the initial position for the next operation.

[0064] The automatic pipe changing mechanism provided by the present invention has a simple structure. By the mutual cooperation among the storage bin mechanism, the material pipe conveying mechanism, the plug conveying mechanism and the waste material pipe collecting mechanism, it can realize the full-automatic replacement of the material pipe without manual intervention. Moreover, the design of the storage bin mechanism can ensure that there are no problems such as material jamming and inaccurate feeding during the pipe changing process. At the same time, corresponding sensors are added to further ensure the stable and reliable operation of the automatic pipe changing mechanism.

[0065] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0066] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. An automatic tube-changing mechanism for a detection device, characterized in that, include: A material storage bin mechanism (1), a material pipe conveying mechanism (2), a plug conveying mechanism (3), and a waste material pipe collecting mechanism (4); The material pipe conveying mechanism (2) comprises a material pipe grabbing mechanism (21) and a vertical movement mechanism (22); the material pipe grabbing mechanism (21) is arranged below the material storage bin mechanism (1) and is used to grab the material pipe taken out of the material storage bin mechanism (1); the vertical movement mechanism (22) is connected to the material pipe grabbing mechanism (21) and is used to convey the material pipe grabbed by the material pipe grabbing mechanism (21) so that the material pipe is aligned with the plug conveying mechanism (3); and the waste material pipe collecting mechanism (4) is arranged below the material pipe grabbing mechanism (21); The plug conveying mechanism (3) comprises a third ball screw pair (30), a fourth driving device (31) and a third guide rail (32); the third ball screw pair (30) is connected to a second slider (33); the second slider (33) is slidably connected to the third guide rail (32); the second slider (33) is connected to a plug (34); the fourth driving device (31) is connected to the third ball screw pair (30) and is used to drive the third ball screw pair (30) to rotate so as to drive the second slider (33) to slide in the third guide rail (32); The waste material pipe collecting mechanism (4) comprises a chute (41) and a waste material box (42) connected to the chute (41); the chute (41) is arranged below the material pipe grabbing mechanism (21).

2. The automatic tube-changing mechanism for a detection device according to claim 1, wherein, The storage bin mechanism (1) comprises a storage bin (11), wherein the storage bin (11) comprises an upper storage bin (111) and a lower storage bin (112), wherein the upper storage bin (111) and the lower storage bin (112) are connected, wherein a slope is provided at the bottom end of the upper storage bin (111), wherein the lower part of the slope is connected to the lower storage bin (112), wherein a discharge port (113) is provided at the bottom end of the lower storage bin (112), wherein a material taking roller (12) is provided in the lower storage bin (112), wherein the material taking roller (12) is arranged above the discharge port (113), wherein the transverse cross-sectional area of the material taking roller (12) is greater than or equal to the area of the discharge port (113), and wherein a groove is provided on the material taking roller (12); wherein the material taking roller (12) is connected to a first driving device (13), wherein the first driving device (13) is used to drive the material taking roller (12) to rotate.

3. The automatic tube changing mechanism for a detection device according to claim 1, characterized in that The material tube grasping mechanism (21) comprises a first ball screw pair (210), a second driving device (211), a first guide rail (212), a fixed clamping jaw (213) and a movable clamping jaw (214); the first ball screw pair (210) is connected to a moving platform (215); the first guide rail (212) is mounted on the fixed clamping jaw (213); the moving platform (215) is slidably connected to the first guide rail (212); the moving platform (215) is connected to the movable clamping jaw (214); the second driving device (211) is connected to the first ball screw pair (210) and is used to drive the first ball screw pair (210) to rotate so as to drive the moving platform (215) to slide in the first guide rail (212); the first guide rail (212) is fixed to the vertical motion mechanism (22).

4. The automatic tube changing mechanism for a detection device according to claim 1 or 3, characterized in that, The material pipe grasping mechanism (21) further includes a first sensor (216). The first sensor (216) is arranged on one side of the moving platform (215) and is used to sense the position of the moving platform (215) to control whether the second driving device operates.

5. The automatic tube changing mechanism for the detection device according to claim 3, characterized in that The vertical movement mechanism (22) includes a second ball screw pair (220), a third driving device (221) and a second guide rail (222). A first slider (223) is connected to the second ball screw pair (220). A vertical moving platform (224) is fixed to the first slider (223). The vertical moving platform (224) is slidably connected to the second guide rail (222). The fixed jaw (213) is installed on the vertical moving platform (224). The third driving device (221) is connected to the second ball screw pair (220) and is used to drive the second ball screw pair (220) to rotate to drive the vertical moving platform (224) to slide in the second guide rail (222).

6. The automatic tube changing mechanism for a detection device according to claim 5, wherein The vertical movement mechanism (22) further includes a second sensor (225). The second sensor (225) is arranged on one side close to the initial position of the first slider (223) and is used to sense the position of the first slider (223) to control whether the third driving device (221) operates.

7. The automatic tube changing mechanism for a detection device according to claim 1, characterized in that, The plug conveying mechanism (3) further includes a third sensor (35). The third sensor (35) is arranged on one side close to the initial position of the plug (34) and is used to sense the position of the second slider (33) to control whether the fourth driving device (31) operates.

8. The automatic tube changing mechanism for a detection device according to claim 1 or 7, characterized in that, The plug conveying mechanism (3) further includes a fourth sensor (36). The fourth sensor (36) is arranged above the plug (34) and is used to detect whether there is a material pipe on the plug (34).

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