Needle length detection device

Abstract

The utility model provides a needle length detection device, which relates to the technical field of quality inspection of medical supplies and specifically comprises a workbench, a movable track is arranged on the workbench and used for conveying a carrier, a containing groove is formed in the carrier, a needle seat is arranged in the containing groove, a plurality of needle bodies are contained in the needle seat, and a detection position is arranged on a conveying path of the movable track. The device further comprises a detection mechanism and a lighting assembly. The detection mechanism comprises a first detection piece and a second detection piece, the detection direction of the first detection piece faces the top end of the needle body and forms an included angle with the moving track, the second detection piece is located above the needle base, and a detection point is the intersection of the needle body and the needle base; the lighting assembly and the first detection piece are oppositely arranged on the two sides of the needle body, and the lighting direction faces the needle body. The needle length data is obtained by subtracting the data measured by the two detection pieces, a plurality of needle bodies of the same carrier can be detected, the data are accurate, and the detection efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of quality inspection of medical products, and in particular to a needle length detection device. Background Art

[0002] Among medical supplies, the length of needle products is important product information. The length of the needle body is currently mostly detected by a camera (CCD sensor).

[0003] During the inspection process, the camera must be fixed at certain specific positions of the equipment in order to capture clear and effective images. When it comes to a large number of needle body inspections, existing production often uses manual inspection or single CCD inspection, combined with secondary random inspections.

[0004] However, workers' long-term inspections can easily cause visual and physical and mental fatigue, resulting in missed inspections of products that fail to meet product quality requirements, low efficiency, high labor costs, and difficulty meeting large-scale continuous production. During CCD sensor inspections, due to assembly errors, manufacturing errors, etc., CCD cameras cannot simultaneously shoot multiple needles and multiple reference surfaces, and multiple reference surfaces will interfere with each other, making it impossible to obtain error-free images. Utility Model Content

[0005] The utility model aims to provide a needle length detection device to alleviate the technical problems existing in the prior art using manual detection or single CCD detection.

[0006] The utility model provides a needle length detection device, including a workbench, a movable track is provided on the workbench, the movable track is used to transport a carrier, a holding slot is provided on the carrier, a needle seat is provided in the holding slot, a plurality of needle bodies are held in the needle seat, and a detection position is provided on the transmission path of the movable track; it also includes a detection mechanism and a lighting component; the detection mechanism includes a first detection member and a second detection member, the detection direction of the first detection member is toward the top of the needle body and is at an angle with the movable track, the second detection member is located above the needle seat and the detection point is the intersection of the needle body and the needle seat; the lighting component is arranged on both sides of the needle body opposite to the first detection member and the lighting direction of the lighting component is toward the needle body. After the carrier moves to the detection position, it stops, the first detection member measures the top height of the needle body, and the second detection member measures the height of the intersection of the needle body and the needle seat. After obtaining the two height data, the height of the top height of the needle body is subtracted from the height of the intersection of the needle body and the needle seat, and the effective length of each needle body placed outside the needle seat can be obtained. During the measurement process, the lighting component continuously illuminates the needle body.

[0007] Furthermore, the detection mechanism also includes a first adjustment component; the first adjustment component is transmission-connected to the first detection member, and the first adjustment component drives the first detection member to move closer to or away from the detection position; the driving direction of the first adjustment component forms an angle with the extension direction of the moving track.

[0008] The first adjustment component can adjust the distance between the first detection member and the needle body so that the distance between the first detection member and the needle body is close to the optimal detection distance of the first detection member.

[0009] Furthermore, the needle length detection device also includes a limit assembly; the limit assembly is arranged on one side of the detection position, and the limit assembly includes a limit piece for fixing the position of the needle seat.

[0010] The limiting member fixes the material in the carrier so that the material can be located at the detection point, so that the first detection member and the second detection member can detect the needle body in the needle seat.

[0011] Furthermore, the limit assembly also includes a limit driving member; the driving end of the limit driving member is connected to the limit member; the limit member is provided with a limit hole, and the driving direction of the limit driving member is a vertical direction; when the carrier is located at the detection position, the projection of the limit hole on the horizontal plane coincides with the projection of the containing groove.

[0012] When limiting, the limiting hole is sleeved outside the needle seat until the top surface of the limiting plate is lower than the intersection of the needle body and the needle seat, the limiting member stops moving downward, and the first detection member and the second detection member detect the needle body.

[0013] Furthermore, there are a plurality of the containing slots and the needle seats; the plurality of the containing slots are arranged on the carrier at intervals along the extension direction of the moving track; and the plurality of the needle seats are arranged in a one-to-one correspondence with the plurality of the containing slots.

[0014] Furthermore, the detection mechanism also includes a mounting plate and a second adjustment component; the first detection member and the first adjustment component are both arranged on the mounting plate; the second adjustment component is arranged on the workbench, the second adjustment component is transmission-connected to the mounting plate, and the second adjustment component drives the mounting plate to move along the extension direction of the movable track.

[0015] The second adjusting component is used to drive the first detecting member to move along the extending direction of the moving track to detect the needle body in each needle seat.

[0016] Furthermore, a guide rail is provided on the workbench; the extension direction of the guide rail is the same as the extension direction of the movable track, and the mounting plate is slidably matched with the guide rail.

[0017] Furthermore, the detection mechanism also includes a third adjustment component; the third adjustment component is transmission-connected to the second detection member; and the driving direction of the third adjustment component is the same as the extending direction of the movable track.

[0018] After the third adjusting component is transmission-connected with the second detecting member, it can drive the second detecting member to move along the extending direction of the moving track, so that the second detecting member can detect the needle body in each needle seat.

[0019] Furthermore, the first detection component is a camera, and the second detection component is a laser sensor.

[0020] Furthermore, there are multiple detection mechanisms; the multiple detection mechanisms are arranged at intervals along the extension direction of the moving track; the lighting assembly includes multiple light sources; the multiple light sources are arranged in a one-to-one correspondence with the multiple detection mechanisms.

[0021] Beneficial effects:

[0022] The needle length detection device provided by the utility model comprises a workbench, a movable track is arranged on the workbench, the movable track is used to transport a carrier, a containing groove is arranged on the carrier, a needle seat is arranged in the containing groove, a plurality of needle bodies are accommodated in the needle seat, and a detection position is arranged on the transmission path of the movable track; it also comprises a detection mechanism and a lighting component; the detection mechanism comprises a first detection member and a second detection member, the detection direction of the first detection member is toward the top of the needle body and forms an angle with the movable track, the second detection member is located above the needle seat and the detection point is the intersection of the needle body and the needle seat; the lighting component is arranged on both sides of the needle body opposite to the first detection member, and the lighting direction of the lighting component is toward the needle body.

[0023] Specifically, the carrier in the utility model is placed in a moving track and moves along the extension direction of the moving track. Multiple needles are placed in the same needle seat, and the needle seat is placed in the carrier and moves with the carrier. When the carrier moves to the detection position, the first detection piece measures the height of the top of the needle body, and the second detection piece measures the height of the intersection of the needle body and the needle seat. After obtaining the two height data, the height of the intersection of the needle body and the needle seat is subtracted from the height of the top of the needle body to obtain the effective length of each needle body placed outside the needle seat. During the measurement process, the lighting component can continuously illuminate the needle body so that the first detection piece can clearly capture and detect. In the utility model, the needle length data is obtained by subtracting the data measured by the two detection pieces. Multiple needles on the same carrier can be detected at the same time, and the data is accurate and the detection efficiency is high. It is suitable for large-scale continuous production. , Detection of the length of the needle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the axial structure of a needle length detection device provided by an embodiment of the utility model;

[0026] Figure 2 A side structural schematic diagram of a needle length detection device provided in an embodiment of the utility model.

[0027] icon:

[0028] 100 - workbench; 110 - moving track;

[0029] 200 – Vehicles;

[0030] 300 - detection mechanism; 310 - first detection member; 320 - second detection member; 330 - first adjustment assembly; 340 - mounting plate; 341 - guide rail; 350 - second adjustment assembly; 360 - third adjustment assembly;

[0031] 400 - limit assembly; 410 - limit member; 420 - limit drive member;

[0032] 500 - Lighting components. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0040] See also Figure 1 , Figure 2 The needle length detection device provided in this embodiment includes a workbench 100, on which a movable track 110 is provided. The movable track 110 is used to transport a carrier 200. A containing groove is provided on the carrier 200, in which a needle holder is provided. A plurality of needle bodies are contained in the needle holder, and a detection position is provided on the transmission path of the movable track 110. It also includes a detection mechanism 300 and a lighting assembly 500. The detection mechanism 300 includes a first detection member 310 and a second detection member 320. The detection direction of the first detection member 310 is toward the top of the needle body and is at an angle to the movable track 110. The second detection member 320 is located above the needle holder and the detection point is the intersection of the needle body and the needle holder. The lighting assembly 500 is arranged on both sides of the needle body opposite to the first detection member 310 and the lighting direction of the lighting assembly 500 is toward the needle body.

[0041] The moving track 110 in this embodiment is composed of two limit plates arranged in parallel. The carrier 200 is placed between the two limit plates and moves along the extension direction of the limit plates. When moving, the carrier 200 at the rear pushes the carrier 200 at the front to move. Multiple needles are placed in the same needle seat, and the needle seat is placed in the carrier 200 and moves with the carrier 200.

[0042] The needle body is assembled with the needle seat, a shell is disposed outside the needle seat, and the needle tip portion 2 of the needle body is exposed outside the needle seat and the shell.

[0043] The carrier 200 moves to the detection position and stops. The first detection component 310 measures the height of the top of the needle body, and the second detection component 320 measures the height of the intersection of the needle body and the needle seat. After obtaining the two height data, the height of the top of the needle body is subtracted from the height of the intersection of the needle body and the needle seat to obtain the effective length of each needle body placed outside the needle seat.

[0044] During the measurement process, the lighting assembly 500 continuously illuminates the needle body so that the first detection member 310 can clearly photograph and detect. In the present invention, the needle length data is obtained by subtracting the data measured by the two detection members, and multiple needle bodies on the same carrier can be detected at the same time, and the data is accurate and the detection efficiency is high, which is suitable for the detection of the length of the needle body in large-scale continuous production.

[0045] In this embodiment, the detection mechanism 300 further includes a first adjustment component 330. The first adjustment component 330 is in transmission connection with the first detection member 310, and the first adjustment component 330 drives the first detection member 310 to move closer to or away from the detection position. The driving direction of the first adjustment component 330 forms an angle with the extension direction of the moving track 110.

[0046] When the first detection member 310 detects the needle body, in order to ensure accurate shooting and detection, the distance between the first detection member 310 and the needle body can be adjusted by the first adjustment component 330, so that the distance between the first detection member 310 and the needle body is close to the optimal detection distance of the first detection member 310, thereby ensuring that the detection result of the first detection member 310 is accurate.

[0047] The included angle between the first detection member 310 and the moving track 110 must be greater than 0° and less than 45°, and the inverse sine function cannot be 26.564°.

[0048] In this embodiment, the needle length detection device further includes a limit assembly 400. The limit assembly 400 is disposed on one side of the detection position, and the limit assembly 400 includes a limit member 410 for fixing the position of the needle seat.

[0049] When the carrier 200 moves to the detection position, the material in the carrier 200 is fixed by the limit member 410 so that the needle seat can be located at the detection point. After the needle seat is fixed, the first detection member 310 and the second detection member 320 detect the needle body in the needle seat. After the detection, the limit member 410 is reset to allow the carrier 200 to continue to move, and the subsequent carrier 200 can move to the detection position again for detection.

[0050] In this embodiment, the limit assembly 400 further includes a limit driving member 420. The driving end of the limit driving member 420 is connected to the limit member 410. The limit member 410 is provided with a limit hole, and the driving direction of the limit driving member 420 is a vertical direction. When the carrier 200 is located at the detection position, the projection of the limit hole on the horizontal plane coincides with the projection of the containing groove.

[0051] Specifically, the limit member 410 moves in the vertical direction under the drive of the limit driving member 420. When the needle seat reaches the detection position, the limit member 410 moves downward so that the limit hole is sleeved outside the needle seat until the top surface of the limit plate is lower than the intersection of the needle body and the needle seat. The limit member 410 stops moving downward, and the first detection member 310 and the second detection member 320 detect the needle body.

[0052] In this embodiment, the limiting driving member 420 is a cylinder, and the limiting member 410 is a limiting plate.

[0053] As an implementable method, the limit drive component 420 can also use a motor in conjunction with a screw rod, a conveyor belt and other structures to achieve the driving function.

[0054] In this embodiment, there are multiple receiving slots and needle seats. The multiple receiving slots are arranged on the carrier 200 at intervals along the extending direction of the moving track 110. The multiple needle seats are arranged one by one corresponding to the multiple receiving slots.

[0055] During the inspection, the inspection mechanism 300 inspects the needle bodies in each receiving slot in sequence to improve the inspection efficiency, and does not require too many carriers 200 to hold the needle seats.

[0056] In this embodiment, the detection mechanism 300 further includes a mounting plate 340 and a second adjustment assembly 350. The first detection member 310 and the first adjustment assembly 330 are both disposed on the mounting plate 340. The second adjustment assembly 350 is disposed on the workbench 100, and the second adjustment assembly 350 is transmission-connected with the mounting plate 340, and the second adjustment assembly 350 drives the mounting plate 340 to move along the extension direction of the moving track 110.

[0057] Specifically, the second adjustment component 350 can drive the mounting plate 340 to move along the extension direction of the movable track 110. When detecting the needle bodies in multiple needle seats on the carrier 200, the position of the needle seats in the carrier 200 can be fixed by the limiting member 410. The second adjustment component 350 drives the first detection member 310 to move along the extension direction of the movable track 110 to realize the detection of the needle bodies in each needle seat.

[0058] In addition, the distance between the first detecting member 310 and the moving track 110 can also be adjusted by the second adjusting component 350 so that the first detecting member 310 can be further approached to the needle body.

[0059] In this embodiment, a guide rail 341 is provided on the workbench 100. The extending direction of the guide rail 341 is the same as the extending direction of the moving track 110, and the mounting plate 340 is slidably matched with the guide rail 341.

[0060] The guide rail 341 is used to guide the moving direction of the mounting plate 340. The second adjustment assembly 350 drives the mounting plate 340 to slide along the extending direction of the guide rail 341 to prevent the moving direction of the mounting plate 340 from deviating from the preset direction. Specifically, a slider is provided on the guide rail 341 in this embodiment, and the mounting plate 340 is connected to the slider to achieve sliding cooperation with the guide rail 341. When the second adjustment assembly 350 is in operation, the second adjustment assembly 350 drives the slider to move along the guide rail 341, thereby driving the mounting plate 340 to move.

[0061] The second adjustment assembly 350 in this embodiment includes a motor and a ball screw, and the motor is arranged on the bottom surface of the workbench 100. The ball screw includes a screw and a moving part on the screw, and the motor is connected to the screw through a sprocket, thereby driving the screw to rotate. The screw is connected to the mounting plate 340, and under the rotation of the screw, the moving part moves along the extension direction of the screw to realize the movement of the mounting plate 340, thereby realizing the movement of the first detection member 310 and the first adjustment assembly 330.

[0062] In this embodiment, the detection mechanism 300 further includes a third adjustment component 360. The third adjustment component 360 is in transmission connection with the second detection member 320. The driving direction of the third adjustment component 360 is the same as the extending direction of the moving track 110.

[0063] After the third adjustment component 360 is in transmission connection with the second detection member 320, the second detection member 320 can be driven to move along the extension direction of the moving track 110, so that the second detection member 320 can detect the needle body in each needle seat. Similarly, the third adjustment component 360 also adjusts the position of the detection point of the second detection member 320 so that the second detection member 320 can be closer to the needle body, thereby improving the accuracy of the detection result of the second detection member 320.

[0064] Please refer again Figure 1 Specifically, the third adjustment component 360 in this embodiment is a driving cylinder, the driving direction of the driving cylinder is the same as the extension direction of the movable track 110, and the driving cylinder in this embodiment is installed on the workbench 100 through a bracket to increase the height of the second detection member 320 so that the height of the detection end of the second detection member 320 can be higher than the intersection of the needle body and the needle seat.

[0065] In this embodiment, the first detection element 310 is a camera, and the second detection element 320 is a laser sensor.

[0066] Specifically, the first detection member 310 in this embodiment is a CCD camera, which can focus on the needle tip during detection to obtain accurate height information. The second detection member 320 is a laser sensor head, which is located on the side of the needle seat during detection, and the detection direction is parallel to the plane where the needle body and the needle seat are located, so as to accurately measure the height of the intersection of the needle body and the needle seat.

[0067] In this embodiment, there are a plurality of detection mechanisms 300 , which are arranged at intervals along the extending direction of the moving track 110 .

[0068] Specifically, the multiple detection mechanisms 300 in this embodiment can detect multiple needle seats in multiple carriers 200 at the same time, thereby improving the detection efficiency.

[0069] In addition, it should be noted that see Figure 1 In this embodiment, the number of detection mechanisms 300 is two, and the number of first detection members 310 in each detection mechanism 300 is less than the number of needle seats in a single carrier 200. In multiple detection mechanisms 300, multiple first detection members 310 are arranged at intervals, and the distance between two adjacent first detection members 310 is the same as the width of a needle seat.

[0070] As an implementable manner, the number of first detection members 310 in each detection mechanism 300 may be the same as the number of needle seats in a single carrier 200. Under this structure, synchronous detection of multiple needle seats can be achieved.

[0071] Moreover, in this embodiment, there are four needle seats on a single carrier 200, and each detection mechanism 300 includes two first detection members 310. For example, when the two first detection members 310 are performing detection, they first detect the first and third needle seats. After the detection, the two first detection members 310 are driven by the second adjustment component 350 to move, and the displacement distance is the width of a needle seat.

[0072] After the displacement is completed, the detection points of the two first detection members 310 are respectively opposite to the positions of the second and fourth needle seats in the carrier 200, so as to detect the needle bodies in the second and fourth needle seats. In the above-mentioned misalignment detection method, the displacement distance of the first detection member 310 is short, and there is no need to move a long distance, and multiple needle seats can be detected, the detection efficiency is high, and fewer first detection members 310 are required.

[0073] In this embodiment, the lighting assembly 500 includes a plurality of light sources, and the plurality of light sources are arranged in a one-to-one correspondence with the plurality of detection mechanisms 300 .

[0074] Specifically, the light source in this embodiment is an LED lamp, and a plurality of LED lamps are evenly arranged on one side of the second detection member 320, and each light source corresponds to a needle holder, so as to realize the illumination of the needle body in each needle holder.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A needle length detection device, comprising a workbench (100), wherein the workbench (100) is provided with a movable track (110), wherein the movable track (110) is used to transport a carrier (200), wherein the carrier (200) is provided with a receiving groove, wherein a needle holder is provided in the receiving groove, wherein a plurality of needle bodies are contained in the needle holder, and wherein a detection position is provided on the transmission path of the movable track (110); wherein the movable track (110) is provided with a detection position; ... Also includes a detection mechanism (300) and a lighting assembly (500); The detection mechanism (300) comprises a first detection member (310) and a second detection member (320), wherein the detection direction of the first detection member (310) is toward the top of the needle body and forms an angle with the moving track (110), and the second detection member (320) is located above the needle seat and the detection point is the intersection of the needle body and the needle seat; The lighting assembly (500) and the first detection member (310) are arranged on two sides of the movable track (110) opposite to each other, and the lighting direction of the lighting assembly (500) is toward the needle body.

2. The needle length detection device according to claim 1, characterized in that: The detection mechanism (300) further includes a first adjustment component (330); The first adjustment component (330) is transmission-connected to the first detection member (310), and the first adjustment component (330) drives the first detection member (310) to move closer to or farther from the detection position; The driving direction of the first adjustment component (330) forms an angle with the extension direction of the moving track (110).

3. The needle length detection device according to claim 2, characterized in that: The needle length detection device further comprises a limit assembly (400); The position limiting assembly (400) is arranged on one side of the detection position, and the position limiting assembly (400) comprises a position limiting member (410) for fixing the position of the needle seat.

4. The needle length detection device according to claim 3, characterized in that: The limiting assembly (400) further includes a limiting driving member (420); The driving end of the position-limiting driving member (420) is connected to the position-limiting member (410); The limiting member (410) is provided with a limiting hole, and the driving direction of the limiting driving member (420) is a vertical direction; When the carrier (200) is located at the detection position, the projection of the limiting hole on the horizontal plane coincides with the projection of the containing groove.

5. The needle length detection device according to claim 2, characterized in that: There are a plurality of the containing slots and the needle seats; A plurality of the containing grooves are arranged on the carrier (200) at intervals along the extension direction of the moving track (110); The plurality of needle seats are arranged in one-to-one correspondence with the plurality of containing grooves.

6. The needle length detection device according to claim 5, characterized in that: The detection mechanism (300) further comprises a mounting plate (340) and a second adjustment component (350); The first detection member (310) and the first adjustment component (330) are both arranged on the mounting plate (340); The second adjustment component (350) is disposed on the workbench (100), and the second adjustment component (350) is transmission-connected to the mounting plate (340), and the second adjustment component (350) drives the mounting plate (340) to move along the extension direction of the movable track (110).

7. The needle length detection device according to claim 6, characterized in that: The workbench (100) is provided with a guide rail (341); The extension direction of the guide rail (341) is the same as the extension direction of the movable track (110), and the mounting plate (340) is slidably matched with the guide rail (341).

8. The needle length detection device according to claim 5, characterized in that: The detection mechanism (300) further includes a third adjustment component (360); The third adjustment component (360) is transmission-connected to the second detection member (320); The driving direction of the third adjustment component (360) is the same as the extending direction of the moving track (110).

9. The needle length detection device according to claim 1, characterized in that: The first detection component (310) is a camera, and the second detection component (320) is a laser sensor.

10. The needle length detection device according to any one of claims 1 to 9, characterized in that: There are multiple detection mechanisms (300); A plurality of the detection mechanisms (300) are arranged at intervals along the extension direction of the moving track (110); The lighting assembly (500) comprises a plurality of light sources; The plurality of light sources and the plurality of detection mechanisms (300) are arranged in one-to-one correspondence.

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