Deviation correcting device for needle head assembly and blood analyzer assembly equipment

Abstract

The utility model provides a deviation correcting device for needle assembly and blood analyzer assembly equipment. The deviation correcting device for needle assembling comprises a feeding mechanism, a clamping mechanism and a rotary assembling mechanism, the rotary assembling mechanism comprises a first support, a rotating assembly, a sleeve, a first double-shaft driving part and two guide rods, the rotating assembly is installed on the first support, the sleeve is connected to the power output end of the rotating assembly, and the first double-shaft driving part is installed on the first support. The first double-shaft driving part is installed on the rotating assembly, the two guide rods are connected with the power output end of the first double-shaft driving part respectively, each guide rod is provided with a guide unit, the two guide units jointly form a guide hole, the guide hole and a feeding port of the sleeve are oppositely arranged, and the two guide units are arranged in the guide hole. The rotating assembly is used for driving the sleeve and the two guide rods to move, so that the liquid inlet end of the needle penetrates through the guide hole and then enters the sleeve.

Description

Technical Field

[0001] The present disclosure relates to the field of medical devices, and in particular to a deviation correction device for needle assembly and blood analyzer assembly equipment. Background Art

[0002] Portable blood analyzer is a compact and portable medical device that is mainly used to quickly and accurately detect various components and indicators in human blood. Figure 1 The figure shows a portable blood analyzer, in which a liquid flow channel and multiple electrode membranes are provided in the detection box. The electrode membranes are used to detect the indicators of various components in the blood. A needle is provided on the side of the detection box. The pipeline in the needle is connected to the liquid flow channel. The blood enters the liquid flow channel through the needle and passes through multiple battery membranes in sequence for detection.

[0003] During the assembly process of the blood analyzer, the needle is screwed into the slot of the test cartridge via a threaded structure to secure the needle to the test cartridge. However, existing assembly equipment directly inserts the threaded end of the needle into the slot of the test cartridge via a rotary clamping device and rotates the device, while the liquid inlet end of the needle is secured by the sleeve of the rotary clamping device. However, when the liquid inlet end of the needle enters the sleeve of the rotary clamping device, there is an issue of inaccurate positioning, resulting in the liquid inlet end of the needle being offset, which in turn makes it impossible for the liquid inlet end of the needle to be inserted into the sleeve, affecting the accuracy of needle assembly.

[0004] Therefore, there is an urgent need for a device that can prevent needle deviation and improve needle assembly accuracy. Utility Model Content

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a correction device for needle assembly and a blood analyzer assembly device that effectively improve the needle assembly accuracy.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] A deviation correction device for needle assembly, comprising:

[0008] The feeding mechanism and the clamping mechanism are arranged adjacent to the clamping mechanism, and the feeding mechanism is used to feed the needle.

[0009] The rotary assembly mechanism comprises a first bracket, a rotary assembly, a sleeve, a first biaxial drive member and two guide rods, the first bracket is arranged adjacent to the clamping mechanism, the rotary assembly is installed on the first bracket, the sleeve is connected to the power output end of the rotary assembly, the first biaxial drive member is installed on the rotary assembly, the two guide rods are respectively connected to the power output end of the first biaxial drive member, each guide rod has a guide unit, and when the first biaxial drive member drives the two guide rods to approach and abut each other, the two guide units jointly form a guide hole, and the guide hole is arranged opposite to the feed port of the sleeve, the clamping mechanism is used to clamp the needle of the feeding mechanism to a position opposite to the guide hole, and the rotary assembly is used to drive the sleeve and the two guide rods to move so that the liquid inlet end of the needle passes through the guide hole and enters the sleeve.

[0010] In one embodiment, the diameter of the guide hole gradually decreases in a direction approaching the sleeve.

[0011] In one embodiment, the rotating assembly includes a first rotating drive member, a mounting frame and a horizontal drive member, the mounting frame is slidably connected to the first bracket, the first rotating drive member and the first dual-axis drive member are both mounted on the mounting frame, the power output end of the first rotating drive member is connected to the sleeve, the horizontal drive member is mounted on the first bracket, and the power output end of the horizontal drive member is connected to the mounting frame.

[0012] In one embodiment, a slide rail is provided on the first bracket, a slide groove is provided on the mounting frame, and the slide rail is embedded in the slide groove so that the mounting frame slides along the extension direction of the slide rail.

[0013] In one embodiment, the guide rod is in an "L" shape.

[0014] In one embodiment, the loading mechanism includes a vibrating loading tray and a loading conveyor frame, the vibrating loading tray is connected to the loading conveyor frame, and the discharge port of the vibrating loading tray is connected to the conveying channel of the loading conveyor frame, so that the needle can enter the loading conveyor frame through the vibrating loading tray.

[0015] In one embodiment, the loading mechanism further includes an in-place detection member, a material clamping groove is provided at one end of the loading conveyor frame away from the vibrating loading tray, the material clamping groove is connected to the conveying channel of the loading conveyor frame, the in-place detection member is installed on the loading conveyor frame, and the detection end of the in-place detection member is arranged toward the material clamping groove.

[0016] In one embodiment, the clamping mechanism includes a second bracket, a transverse driving member, a vertical driving member, a first movable plate, a second movable plate, a second rotating driving member and a clamping assembly. The second bracket is arranged adjacent to the loading conveyor frame, the transverse driving member is installed on the second bracket, the first movable plate is installed on the power output end of the transverse driving member, the vertical driving member is installed on the first movable plate, the power output end of the vertical driving member is connected to the second movable plate, the second rotating driving member is installed on the second movable plate, the power output end of the second rotating driving member is connected to the clamping assembly, and the second rotating driving member is used to drive the clamping assembly to rotate so that the liquid inlet end of the needle is arranged relative to the feed port of the sleeve.

[0017] In one embodiment, the clamping assembly includes a second biaxial drive member and two clamping rods. The second biaxial drive member is connected to the power output end of the second rotary drive member. The two clamping rods are respectively connected to the power output end of the second biaxial drive member. The second biaxial drive member drives the two clamping rods to move closer to or away from each other.

[0018] An assembly device for a blood analyzer comprises the deviation-correcting device for needle assembly described in any one of the above embodiments.

[0019] Compared with the prior art, the present disclosure has at least the following advantages:

[0020] The above-mentioned correction device for needle assembly, the feeding mechanism is used to load the needle, and the two guide rods are each provided with a guide unit, the two guide units are arranged opposite to each other, and the two guide rods are respectively connected to the power output end of the first dual-axis driving member. When the first dual-axis driving member drives the two guide rods to approach and abut each other, the two guide units jointly form a guide hole. At this time, the clamping mechanism clamps the needle in the feeding mechanism and moves it to the guide hole, and the liquid inlet end of the needle passes through the guide hole into the sleeve. Finally, the rotating assembly drives the other end of the needle to be rotated and screwed with the detection box. In this way, the needle is positioned through the guide hole to avoid displacement when the liquid inlet end of the needle enters the sleeve, thereby improving the assembly accuracy of the needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural diagram of a blood analyzer in the prior art;

[0023] Figure 2 This is a schematic structural diagram of a deviation-correcting device for needle assembly according to one embodiment;

[0024] Figure 3 for Figure 2 A schematic structural diagram of a rotary assembly mechanism of a deviation correction device for needle assembly is shown;

[0025] Figure 4 for Figure 2 Another structural schematic diagram of the rotary assembly mechanism of the correction device for needle assembly shown;

[0026] Figure 5 for Figure 2 A schematic structural diagram of a feeding mechanism of a deviation-correcting device for needle assembly is shown;

[0027] Figure 6 for Figure 2 A schematic structural diagram of a clamping mechanism of a deviation correction device for needle assembly is shown;

[0028] Figure 7 for Figure 2 The diagram shown is a working diagram of the correction device for needle assembly. DETAILED DESCRIPTION

[0029] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] The present disclosure provides a correction device for needle assembly, comprising a feeding mechanism, a clamping mechanism and a rotating assembly mechanism, wherein the feeding mechanism is arranged adjacent to the clamping mechanism and is used to feed the needle, and the rotating assembly mechanism comprises a first bracket, a rotating assembly, a sleeve, a first biaxial driving member and two guide rods, wherein the first bracket is arranged adjacent to the clamping mechanism, the rotating assembly is mounted on the first bracket, the sleeve is connected to the power output end of the rotating assembly, the first biaxial driving member is mounted on the rotating assembly, and the two guide rods are respectively connected to the power output end of the first biaxial driving member, each of the guide rods has a guide unit, and when the first biaxial driving member drives the two guide rods to approach and abut each other, the two guide units jointly form a guide hole, and the guide hole is arranged opposite to the feed port of the sleeve, the clamping mechanism is used to clamp the needle of the feeding mechanism to a position opposite to the guide hole, and the rotating assembly is used to drive the sleeve and the two guide rods to move so that the liquid inlet end of the needle passes through the guide hole and enters the sleeve.

[0033] The above-mentioned correction device for needle assembly, the feeding mechanism is used to load the needle, and the two guide rods are each provided with a guide unit, the two guide units are arranged opposite to each other, and the two guide rods are respectively connected to the power output end of the first dual-axis driving member. When the first dual-axis driving member drives the two guide rods to approach and abut each other, the two guide units jointly form a guide hole. At this time, the clamping mechanism clamps the needle in the feeding mechanism and moves it to the guide hole, and the liquid inlet end of the needle passes through the guide hole into the sleeve. Finally, the rotating assembly drives the other end of the needle to be rotated and screwed with the detection box. In this way, the needle is positioned through the guide hole to avoid displacement when the liquid inlet end of the needle enters the sleeve, thereby improving the assembly accuracy of the needle.

[0034] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0035] like Figure 2 、 Figure 3 and Figure 4As shown, a correction device 10 for needle assembly in one embodiment includes a feeding mechanism 100, a clamping mechanism 200 and a rotating assembly mechanism 300. The feeding mechanism 100 is arranged adjacent to the clamping mechanism 200. The feeding mechanism 100 is used to feed the needle. The rotating assembly 300 includes a first bracket 310, a rotating assembly 320, a sleeve 330, a first biaxial driving member 340 and two guide rods 350. The first bracket 310 is arranged adjacent to the clamping mechanism 200. The rotating assembly 320 is installed on the first bracket 310. The sleeve 330 is connected to the power output end of the rotating assembly 320. The first biaxial driving member 340 is installed on the rotating assembly 320. The two guide rods 350 are respectively connected to the power output end of the first dual-axis driving member 340. Each guide rod 350 is provided with a guide unit (not shown). When the first dual-axis driving member 340 drives the two guide rods 350 to approach and abut each other, the two guide units jointly form a guide hole 351. The guide hole 351 is arranged opposite to the feed port of the sleeve 330. The clamping mechanism 200 is used to clamp the needle of the feeding mechanism 100 to a position opposite to the guide hole 351. The rotating assembly 320 is used to drive the sleeve 330 and the two guide rods 350 to move so that the liquid inlet end of the needle passes through the guide hole 351 and enters the sleeve 330.

[0036] In this embodiment, both guide rods 350 are provided with guide units, the two guide units are arranged opposite to each other, and the two guide rods 350 are connected to the power output end of the first biaxial driving member 340, so that when the first biaxial driving member 340 drives the two guide rods 350 to approach and abut each other, the two guide units jointly form a guide hole 351, and the guide hole 351 is used for the liquid inlet end of the needle to pass through, so as to achieve a positioning and guiding effect. Specifically, the movement process of the correction device is as follows: when the feeding mechanism 100 transports the needle to the predetermined position, the clamping mechanism 200 clamps the needle of the feeding mechanism 100 and moves to a position opposite to the guide rod 350. At this time, the first biaxial driving member 340 drives the two guide rods 350 to approach and abut each other, so that the two guide units jointly form a guide hole 351. The rotating assembly 320 drives the sleeve 330, the two guide rods 350 and the first biaxial driving member 340 to move together along the needle direction, so that the liquid inlet end of the needle passes through the guide hole 351 and enters the sleeve 330. When the liquid inlet end of the needle enters the sleeve 330 to a predetermined distance, the first biaxial driving member 340 drives the two guide rods 350 away from each other to avoid the guide rod 350 interfering with the needle continuing to enter the sleeve 330, thereby making the liquid inlet end of the needle completely fixed in the sleeve 330. Furthermore, after the needle is fixed to the sleeve 330, the rotating assembly 320 drives the needle to rotate so that the other end of the needle is rotationally screwed into the slot of the blood testing box.

[0037] The above-mentioned correction device 10 for needle assembly, the feeding mechanism 100 is used to load the needle, and the two guide rods 350 are each provided with a guide unit, and the two guide units are arranged opposite to each other. The two guide rods 350 are respectively connected to the power output end of the first dual-axis drive member 340. When the first dual-axis drive member 340 drives the two guide rods 350 to approach and abut each other, the two guide units jointly form a guide hole 351. At this time, the clamping mechanism 200 clamps the needle in the feeding mechanism 100 and moves it to the guide hole 351. The liquid inlet end of the needle passes through the guide hole 351 and enters the sleeve 330. Finally, the rotating assembly 320 drives the other end of the needle to be rotated and screwed with the detection box. In this way, the needle is positioned through the guide hole 351 to avoid displacement when the liquid inlet end of the needle enters the sleeve 330, thereby improving the assembly accuracy of the needle.

[0038] like Figure 4 As shown, in one embodiment, the diameter of the guide hole 351 gradually decreases as it approaches the sleeve 330. It can be understood that the cross-section of the guide hole 351 is tapered, so that the diameter of the guide hole 351 gradually decreases as it approaches the sleeve 330, so that the shape of the guide hole 351 is compatible with the shape of the liquid inlet end of the needle, further improving the accuracy of the needle assembly into the sleeve 330.

[0039] like Figure 3 and Figure 4 As shown, in one embodiment, the rotating assembly 320 includes a first rotating drive member 321, a mounting frame 322 and a horizontal drive member 323, the mounting frame 322 is slidably connected to the first bracket 310, the first rotating drive member 321 and the first dual-axis drive member 340 are both installed on the mounting frame 322, the power output end of the first rotating drive member 321 is connected to the sleeve 330, the horizontal drive member 323 is installed on the first bracket 310, and the power output end of the horizontal drive member 323 is connected to the mounting frame 322. As will be understood, the mounting bracket 322 is slidably mounted on the first bracket 310, and the power output end of the horizontal drive member 323 is connected to the mounting bracket 322. When the clamping mechanism 200 clamps the needle so that it is aligned with the guide hole 351, the horizontal drive member 323 drives the mounting bracket 322 to move horizontally, thereby driving the sleeve 330 and the first biaxial drive member 340 to move horizontally, so that the liquid inlet end of the needle passes through the guide hole 351 and enters the sleeve 330. After the liquid inlet end of the needle is fixed to the sleeve 330, the first rotary drive member 321 drives the sleeve 330 and the needle to rotate, so that the other end of the needle is rotatably screwed into the slot of the blood testing cartridge. In this embodiment, the first rotary drive member 321 and the horizontal drive member 323 may be cylinders or motors.

[0040] like Figure 3 As shown, in one embodiment, the first bracket 310 is provided with a slide rail 311, and the mounting frame 322 is provided with a slide groove (not shown), and the slide rail 311 is embedded in the slide groove so that the mounting frame 322 slides along the extension direction of the slide rail 311. It can be understood that the horizontal driving member 323 drives the mounting frame 322 to slide along the extension direction of the slide rail 311, so that the connection between the mounting frame 322 and the first bracket 310 is more stable.

[0041] like Figure 3 As shown, in one embodiment, the guide rod 350 is L-shaped. In this embodiment, the first dual-axis drive member 340 is mounted on one side of the mounting bracket 322, and the guide rod 350 is L-shaped, so that the guide rod 350 extends from the first dual-axis drive member 340 to be arranged opposite the feed port of the sleeve 330, thereby making the structure of the guide rod 350 more compact.

[0042] like Figure 5 As shown, in one embodiment, the loading mechanism 100 includes a vibrating loading tray 110 and a loading conveyor frame 120, wherein the vibrating loading tray 110 is connected to the loading conveyor frame 120, and the discharge port of the vibrating loading tray 110 is connected to the conveying channel of the loading conveyor frame 120, so that the needle passes through the vibrating loading tray 110 and enters the loading conveyor frame 120. It can be understood that the needle is vibrated by the vibrating loading tray 110 to feed the needle through the vibrating loading tray 110 into the loading conveyor frame 120, so that the needle loading efficiency is higher.

[0043] like Figure 5 As shown, in one embodiment, the feeding mechanism 100 further includes an in-place detection member 130, and a clamping groove 121 is provided at one end of the feeding conveyor frame 120 away from the vibrating feeding tray 110. The clamping groove 121 is communicated with the conveying channel of the feeding conveyor frame 120, and the in-place detection member 130 is mounted on the feeding conveyor frame 120, with the detection end of the in-place detection member 130 facing the clamping groove 121. In this embodiment, the in-place detection member 130 is a sensor, and the detection end of the in-place detection member 130 is disposed toward the clamping groove 121. When the needle enters the clamping groove 121 through the conveying channel of the feeding conveyor frame 120, the in-place detection member 130 detects that the needle has reached the clamping groove 121, and the in-place detection member 130 releases a signal to cause the clamping mechanism 200 to clamp the needle in the clamping groove 121.

[0044] like Figure 6As shown, in one embodiment, the clamping mechanism 200 includes a second bracket 210, a transverse driving member 220, a vertical driving member 230, a first movable plate 240, a second movable plate 250, a second rotating driving member 260 and a clamping assembly 270, the second bracket 210 is arranged adjacent to the loading conveyor frame 120, the transverse driving member 220 is installed on the second bracket 210, the first movable plate 240 is installed on the power output end of the transverse driving member 220, the vertical driving member 230 is installed on the first movable plate 240, the power output end of the vertical driving member 230 is connected to the second movable plate 250, the second rotating driving member 260 is installed on the second movable plate 250, the power output end of the second rotating driving member 260 is connected to the clamping assembly 270, and the second rotating driving member 260 is used to drive the clamping assembly 270 to rotate so that the liquid inlet end of the needle is arranged relative to the feed port of the sleeve 330. As can be understood, the transverse drive member 220 and the vertical drive member 230 drive the clamping assembly 270 to move horizontally and vertically, so that the clamping assembly 270 clamps the needle to a position opposite the guide hole 351. Furthermore, since the liquid inlet end of the needle is positioned downward when the needle is loaded, the second rotary drive member 260 rotates the clamping assembly 270 90° to position the liquid inlet end of the needle opposite the guide hole 351, thereby allowing the liquid inlet end of the needle to pass through the guide hole 351 and enter the sleeve 330. In this embodiment, the transverse drive member 220, the vertical drive member 230, and the second rotary drive member 260 can be cylinders or motors.

[0045] like Figure 6 As shown, in one embodiment, the clamping assembly 270 includes a second biaxial drive member 271 and two clamping rods 272. The second biaxial drive member 271 is connected to the power output end of the second rotary drive member 260, and the two clamping rods 272 are respectively connected to the power output end of the second biaxial drive member 271. The second biaxial drive member 271 drives the two clamping rods 272 to move closer to or away from each other. In this embodiment, the second biaxial drive member 271 is a motor or a cylinder, which drives the two clamping rods 272 to move closer to each other to clamp the needle, and drives the two clamping rods 272 to move away from each other to release the needle.

[0046] The present application also provides an assembly device for a blood analyzer, comprising the deviation correction device 10 for needle assembly described in any of the above embodiments.

[0047] Compared with the prior art, the present disclosure has at least the following advantages:

[0048] The above-mentioned correction device 10 for needle assembly, the feeding mechanism 100 is used to load the needle, and the two guide rods 350 are each provided with a guide unit, and the two guide units are arranged opposite to each other. The two guide rods 350 are respectively connected to the power output end of the first dual-axis drive member 340. When the first dual-axis drive member 340 drives the two guide rods 350 to approach and abut each other, the two guide units jointly form a guide hole 351. At this time, the clamping mechanism 200 clamps the needle in the feeding mechanism 100 and moves it to the guide hole 351. The liquid inlet end of the needle passes through the guide hole 351 and enters the sleeve 330. Finally, the rotating assembly 320 drives the other end of the needle to be rotated and screwed with the detection box. In this way, the needle is positioned through the guide hole 351 to avoid displacement when the liquid inlet end of the needle enters the sleeve 330, thereby improving the assembly accuracy of the needle.

[0049] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art could make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present patent shall be determined by the appended claims.

Claims

1. A correction device for needle assembly, comprising a feeding mechanism and a clamping mechanism, wherein the feeding mechanism is arranged adjacent to the clamping mechanism, and the feeding mechanism is used to feed the needle, characterized in that: The correction device for needle assembly also includes a rotating assembly mechanism, which includes a first bracket, a rotating assembly, a sleeve, a first biaxial drive member and two guide rods. The first bracket is arranged adjacent to the clamping mechanism, the rotating assembly is installed on the first bracket, the sleeve is connected to the power output end of the rotating assembly, the first biaxial drive member is installed on the rotating assembly, and the two guide rods are respectively connected to the power output end of the first biaxial drive member. Each of the guide rods has a guide unit. When the first biaxial drive member drives the two guide rods to approach and abut each other, the two guide units jointly form a guide hole. The guide hole is arranged opposite to the feed port of the sleeve. The clamping mechanism is used to clamp the needle of the feeding mechanism to a position opposite to the guide hole. The rotating assembly is used to drive the sleeve and the two guide rods to move so that the liquid inlet end of the needle passes through the guide hole and enters the sleeve.

2. The correction device for needle assembly according to claim 1, characterized in that: The diameter of the guide hole gradually decreases in a direction approaching the sleeve.

3. The correction device for needle assembly according to claim 1, characterized in that: The rotating assembly includes a first rotating drive member, a mounting frame and a horizontal drive member. The mounting frame is slidably connected to the first bracket. The first rotating drive member and the first dual-axis drive member are both installed on the mounting frame. The power output end of the first rotating drive member is connected to the sleeve. The horizontal drive member is installed on the first bracket. The power output end of the horizontal drive member is connected to the mounting frame.

4. The correction device for needle assembly according to claim 3, characterized in that: The first bracket is provided with a slide rail, the mounting frame is provided with a slide groove, and the slide rail is embedded in the slide groove so that the mounting frame slides along the extending direction of the slide rail.

5. The deviation-correcting device for needle assembly according to claim 1, characterized in that: The guide rod is in an "L" shape.

6. The deviation-correcting device for needle assembly according to claim 1, characterized in that: The feeding mechanism includes a vibrating feeding tray and a feeding conveyor frame. The vibrating feeding tray is connected to the feeding conveyor frame. The discharge port of the vibrating feeding tray is connected to the conveying channel of the feeding conveyor frame, so that the needle can enter the feeding conveyor frame through the vibrating feeding tray.

7. The deviation-correcting device for needle assembly according to claim 6, characterized in that: The feeding mechanism also includes an in-place detection member. A material clamping groove is provided at one end of the feeding conveyor frame away from the vibrating feeding tray. The material clamping groove is connected to the conveying channel of the feeding conveyor frame. The in-place detection member is installed on the feeding conveyor frame, and the detection end of the in-place detection member is arranged toward the material clamping groove.

8. The deviation-correcting device for needle assembly according to claim 6, characterized in that: The clamping mechanism includes a second bracket, a transverse driving member, a vertical driving member, a first movable plate, a second movable plate, a second rotating driving member and a clamping assembly. The second bracket is arranged adjacent to the loading conveyor frame, the transverse driving member is installed on the second bracket, the first movable plate is installed on the power output end of the transverse driving member, the vertical driving member is installed on the first movable plate, the power output end of the vertical driving member is connected to the second movable plate, the second rotating driving member is installed on the second movable plate, the power output end of the second rotating driving member is connected to the clamping assembly, and the second rotating driving member is used to drive the clamping assembly to rotate so that the liquid inlet end of the needle is arranged relative to the feed port of the sleeve.

9. The deviation-correcting device for needle assembly according to claim 8, characterized in that: The clamping assembly includes a second biaxial drive member and two clamping rods. The second biaxial drive member is connected to the power output end of the second rotating drive member. The two clamping rods are respectively connected to the power output end of the second biaxial drive member. The second biaxial drive member drives the two clamping rods to move closer to or away from each other.

10. An assembly device for a blood analyzer, characterized in that: The invention comprises a deviation-correcting device for needle assembly according to any one of claims 1 to 9.

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