Conveying device of stirrer

Abstract

The utility model discloses a stirrer conveying device which comprises a stock bin, a base is arranged at the bottom of the stock bin, a guide seat is arranged in the stock bin and arranged above the base, a gap exists between the guide seat and the base to form a material pushing channel, a first through hole is formed in the middle of the guide seat, and the first through hole is communicated with the material pushing channel. A discharging opening is formed in one side of the base and communicates with the pushing channel, and a first magnet is arranged on the base and corresponds to the first through hole; the selecting and pushing assembly comprises a pushing rod and a pushing mechanism, the pushing rod is slidably arranged in the pushing channel, a second through hole capable of containing the stirrer is formed in one end of the pushing rod and is formed in the end close to the discharging port, the pushing mechanism is arranged on one side of the stock bin, and the pushing device drives the pushing rod to slide left and right along the pushing channel. According to the stirrer conveying device, an automatic mode is adopted, and compared with the mode that stirrers are manually selected and loaded into reaction cups in the market, the efficiency and reliability of the stirrer conveying device are obviously improved, and the cost is obviously reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of in vitro diagnosis, in particular to a conveying device for stirrers. Background Art

[0002] In some in vitro diagnostic analyzers, a large number of stirrers are required for operations such as mixing. There are magnets in the stirrers. A pile of stirrers will attract each other and be stored randomly in the stirrer bin. During the working process, the stirrers need to be individually conveyed to the designated positions. For the traditional method of installing stirrers, generally, the manual placement method is adopted. The stirrers are manually placed into the reaction cups in advance. There is an iron sheet at the bottom of the reaction cup to hold the stirrers in place. When a reaction cup is needed, the reaction cup with the stirrer is placed into the designated position.

[0003] Although the above method can meet the requirement of placing the stirrers at the designated positions, it is easy to be contaminated due to the manual placement method, which affects the accuracy of the in vitro diagnostic analyzer. At the same time, the efficiency is slow when using manual placement. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a conveying device for stirrers. By adopting an automated method, compared with the method of manually selecting stirrers and installing them into reaction cups on the market, its efficiency and reliability are significantly improved, and the cost is significantly reduced.

[0005] The technical solution adopted by the conveying device for stirrers disclosed by the utility model is as follows:

[0006] A conveying device for stirrers includes a bin. A base is provided at the bottom of the bin. A guiding seat is arranged inside the bin. The guiding seat is located above the base, and a gap is formed between the guiding seat and the base to form a pushing channel. A first through hole is provided in the middle of the guiding seat. The first through hole is communicated with the pushing channel. An outlet is provided on one side of the base. The outlet is communicated with the pushing channel. A first magnet is provided on the base corresponding to the first through hole.

[0007] A selecting and pushing assembly, the selecting and pushing assembly includes a push rod and a pushing mechanism. The push rod is slidably arranged in the pushing channel. A second through hole for accommodating a stirrer is provided at one end of the push rod. The second through hole is arranged at the end close to the outlet. The pushing mechanism is arranged on one side of the bin. The pushing device drives the push rod to slide left and right along the pushing channel.

[0008] As a preferred solution, the side of the guiding seat away from the base is a V-shaped inclined surface structure, and the first through hole is located at the center of the bottom of the guiding seat.

[0009] As a preferred solution, a slide groove is provided on one side of the guide seat close to the base, the width of the slide groove is smaller than the width of the stirring bar, a split piece is slidably provided inside the slide groove, the split piece is fixedly connected to the push rod, and there is a gap between the split piece and the second through hole.

[0010] As a preferred solution, a counter-optical coupler is provided on one side of the silo, and the counter-optical coupler is arranged corresponding to the first through hole, and the counter-optical coupler is used to detect whether there is a stirrer in the first through hole.

[0011] As a preferred solution, a second magnet is provided on an end surface of the push rod away from the second through hole.

[0012] As a preferred solution, the number of the second magnet is at least one, and the second magnet is arranged along the extension direction of the push rod.

[0013] As a preferred solution, a reflective optical coupler is provided under the base, and the reflective optical coupler is provided corresponding to the discharge port, and the reflective optical coupler is used to detect whether there is a reaction cup at the discharge port.

[0014] As a preferred solution, the pushing mechanism includes a mounting plate, a motor and a slide rail, the mounting plate is fixed on one side of the silo, the motor is fixed above the mounting plate, a transmission wheel is rotatably provided on the other side of the mounting plate, the output shaft of the motor is provided with a driving wheel, the transmission wheel and the driving wheel are connected by a belt, a movable slider is provided on the belt, the movable slider is slidably connected to the slide rail, the slide rail is horizontally fixed on one side of the silo, the lower end of the movable slider is fixedly connected to the push rod through a connecting arm, and the movable slider drives the push rod to move.

[0015] As a preferred solution, a reset optical coupler is provided on one side of the silo, and an optical coupler baffle is provided on the side of the movable slider corresponding to the reset optical coupler.

[0016] The beneficial effect of the transmission device of a stirring bar disclosed by the utility model is as follows: a reaction cup is placed below the discharge port of the base, the stirring bar is poured into the silo at will, the stirring bar gathers at the bottom of the silo, and the second through hole on the push rod is aligned with the first through hole on the guide seat, so that the stirring bar can fall into the second through hole through the first through hole under the adsorption action of the first magnet, the push rod is pushed toward the discharge port side by the pushing mechanism, the stirring bar in the first through hole is blocked by the push rod and retained in the first through hole, the stirring bar in the second through hole moves to the discharge port together with the push rod, and under the action of gravity, the stirring bar falls from the discharge port into the reaction cup, completing the effect of automatic feeding, and repeating the above actions, thereby improving efficiency and avoiding the occurrence of human pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a transmission device of a stirring bar.

[0018] Figure 2 It is another perspective structural schematic diagram of a stirring bar transmission device of the present utility model.

[0019] Figure 3 It is a cross-sectional view of a stirring bar transmission device of the present utility model.

[0020] Figure 4 It is an exploded view of the bin structure of a stirring bar transmission device of the present utility model. Specific embodiments

[0021] The present utility model will be further described and explained below in conjunction with specific embodiments and the attached drawings of the specification:

[0022] Please refer to Figure 1 , Figure 3 and Figure 4 , a stirring bar transmission device, including a bin 10, a base 11 is provided at the bottom of the bin 10, a guiding seat 12 is provided inside the bin 10, the guiding seat 12 is arranged above the base 11, and a gap is formed between the guiding seat 12 and the base 11 to form a pushing channel 121, and a first through hole 122 is provided in the middle of the guiding seat 12, the first through hole 122 is communicated with the pushing channel 121, the side of the guiding seat 12 away from the base 11 is a V-shaped inclined surface structure, the first through hole 122 is located at the center of the bottom of the guiding seat 12, an outlet 111 is provided on one side of the base 11, the outlet 111 is communicated with the pushing channel 121, and a first magnet 112 is provided on the base 11 corresponding to the first through hole 122.

[0023] When the stirring bars are poured in, they gather at the bottom of the guiding seat 12 and thus automatically slide towards the lower place. The guiding seat 12 is provided with a first through hole 122 to facilitate the entry of the stirring bars.

[0024] An opposed photoelectric coupler 13 is provided on one side of the bin 10, the opposed photoelectric coupler 13 is arranged corresponding to the first through hole 122, and the opposed photoelectric coupler 13 is used to detect whether there is a stirring bar in the first through hole 122.

[0025] A selection and pushing assembly 20, the selection and pushing assembly 20 includes a push rod 21 and a pushing mechanism 22, the push rod 21 is slidably arranged in the pushing channel 121, and a second through hole 211 for accommodating the stirring bar is provided at one end of the push rod 21, and the second through hole 211 is arranged at one end close to the outlet 111, and the pushing mechanism 22 is arranged on one side of the bin 10, and the pushing device drives the push rod 21 to slide left and right along the pushing channel 121.

[0026] In the above scheme, a slide groove 123 is opened on the side of the guide seat 12 close to the base 11, and the width of the slide groove 123 is smaller than the width of the stirring bar to prevent the stirring bar from being stuck in the slide groove 123. A partition plate 23 is slidably provided inside the slide groove 123, and the partition plate 23 is fixedly connected to the push rod 21, and there is a gap between the partition plate 23 and the second through hole 211.

[0027] The splitting piece 23 is fixedly connected to the push rod 21, so that the splitting piece 23 moves with the push rod 21. When the splitting piece 23 passes over the first through hole 122, it will separate the stirring bar entering the first through hole 122 from the stirring bar pile in the silo 10. This process realizes the separation of the selected stirring bar.

[0028] A second magnet 212 is provided on one end surface of the push rod 21 away from the second through hole 211. The number of the second magnet 212 is at least one, and the second magnet 212 is arranged along the extension direction of the push rod 21. The number of the second magnet 212 is at least one, and the second magnet 212 is arranged along the extension direction of the push rod 21.

[0029] The second magnet 212 on the push rod 21 will suck the stirrer into the first through hole 122 to complete the task of selecting the stirrer. When the second through hole 211 is aligned with the first through hole 122, the first magnet 112 will suck the selected stirrer from the first through hole 122 to the second through hole 211. This process sucks the stirrer into the second through hole 211 to prepare for subsequent transmission.

[0030] A reflective optical coupler 14 is disposed below the base 11 . The reflective optical coupler 14 is disposed corresponding to the discharge port 111 . The reflective optical coupler 14 is used to detect whether there is a reaction cup at the discharge port 111 .

[0031] Please refer to Figure 2 The pushing mechanism 22 includes a mounting plate 221, a motor 222 and a slide rail 223. The mounting plate 221 is fixed on one side of the silo 10, the motor 222 is fixed above the mounting plate 221, and a transmission wheel 224 is rotatably provided on the other side of the mounting plate 221. The output shaft of the motor 222 is provided with a driving wheel 225. The transmission wheel 224 and the driving wheel 225 are connected by a belt 226. A movable slider 227 is provided on the belt 226. The movable slider 227 is slidably connected to the slide rail 223. The slide rail 223 is horizontally fixed to one side of the silo 10. The lower end of the movable slider 227 is fixedly connected to the push rod 21 through a connecting arm 228. The movable slider 227 drives the push rod 21 to move. A reset optical coupler 229 is provided on one side of the silo 10, and an optical coupler baffle is provided on the side of the movable slider 227 corresponding to the reset optical coupler 229.

[0032] The driving wheel 225 is rotated by the motor 222, thereby driving the belt 226 to rotate along the driving wheel 225 and the driven wheel 224, causing the moving slider 227 to move along with the belt 226, achieving the purpose of driving the push rod 21 to move. The optical coupling baffle on one side of the moving slider 227 and the reset optical coupler 229 can detect whether the moving slider 227 has moved in place.

[0033] Working principle: The reaction cup is placed below the discharge port 111 of the base 11, and the magnetic stirrers are randomly poured into the hopper 10. Since the upper surface of the guiding seat 12 is an inclined plane, the magnetic stirrers will slide along the inclined plane to the first through hole 122 at the bottom; when the reflection optical coupler 14 detects that there is a reaction cup in front, the motor 222 rotates, driving the slider 227 to move left and right on the slide rail 223, and then driving the connecting arm 228 and the push rod 21 to move left and right through the slider. When the push rod 21 moves towards the discharge port 111, the second magnet 212 on the push rod 21 will suck the magnetic stirrer into the first through hole 122, completing the task of selecting the magnetic stirrer.

[0034] The push rod 21 moves away from the discharge port 111. When the dividing piece 23 reaches above the first through hole 122, the magnetic stirrer dividing piece 23 will push away the magnetic stirrers above the first through hole 122, separating the selected magnetic stirrer from the pile of magnetic stirrers in the warehouse, and retaining the selected magnetic stirrer in the first through hole 122. The magnetic stirrer selection and pushing assembly 20 continues to move in the above direction. When the second through hole 211 is aligned with the first through hole 122, the selected magnetic stirrer will be sucked into the second through hole 211 by the second magnet 212 below; then the magnetic stirrer push rod 21 moves towards the discharge port 111, driving the selected magnetic stirrer to move together; when the second through hole 211 is aligned with the discharge port 111, the selected magnetic stirrer will fall into the discharge port 111 under the action of gravity, falling into the reaction cup below, completing the process of selecting and transporting a single magnetic stirrer.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A stirring bar transmission device, characterized in that It includes a silo, a base is provided at the bottom of the silo, a guide seat is provided inside the silo, the guide seat is arranged above the base, and a gap is formed between the guide seat and the base to form a material pushing channel. A first through hole is provided in the middle of the guide seat, the first through hole is communicated with the material pushing channel, an outlet is provided on one side of the base, the outlet is communicated with the material pushing channel, and the base is provided with a first magnet corresponding to the first through hole; A selection and pushing assembly, the selection and pushing assembly includes a push rod and a pushing mechanism. The push rod is slidably arranged in the material pushing channel, and a second through hole for accommodating a stirrer is provided at one end of the push rod, and the second through hole is arranged at one end close to the outlet. The pushing mechanism is arranged on one side of the silo, and the pushing mechanism drives the push rod to slide left and right along the material pushing channel.

2. The transfer device of a magnetic stir bar according to claim 1, characterized in that, The side of the guide seat away from the base is a V-shaped inclined surface structure, and the first through hole is located at the center of the bottom of the guide seat.

3. The transfer device of a magnetic stir bar according to claim 2, wherein A chute is provided on the side of the guide seat close to the base, the width of the chute is smaller than the width of the stirrer, a dividing piece is slidably arranged inside the chute, the dividing piece is fixedly connected with the push rod, and a gap exists between the dividing piece and the second through hole.

4. The transfer device of a magnetic stir bar according to claim 2, wherein, An opposed photoelectric coupler is provided on one side of the silo, the opposed photoelectric coupler is arranged corresponding to the first through hole, and the opposed photoelectric coupler is used to detect whether there is a stirrer in the first through hole.

5. The transmission device of a magnetic stir bar according to claim 1, wherein A second magnet is provided on the surface of the end of the push rod away from the second through hole.

6. The conveying device of a magnetic stir bar according to claim 5, characterized in that, The number of the second magnets is at least one, and the second magnets are arranged in a row along the extending direction of the push rod.

7. The conveying device of a magnetic stir bar according to claim 1, wherein A reflective photoelectric coupler is provided below the base, the reflective photoelectric coupler is arranged corresponding to the outlet, and the reflective photoelectric coupler is used to detect whether there is a reaction cup at the outlet.

8. The transfer device of a magnetic stir bar according to claim 1, characterized in that, The pushing mechanism includes a mounting plate, a motor and a slide rail. The mounting plate is fixed on one side of the silo, the motor is fixed above the mounting plate, a transmission wheel is rotatably arranged on the other side of the mounting plate, a driving wheel is provided on the output shaft of the motor, the transmission wheel and the driving wheel are connected by a belt for transmission, a moving slider is provided on the belt, the moving slider is slidably connected with the slide rail, the slide rail is horizontally fixed on one side of the silo, and the lower end of the moving slider is fixedly connected with the push rod through a connecting arm, and the moving slider drives the push rod to move.

9. The transfer device of a magnetic stir bar according to claim 8, characterized in that, A reset photoelectric coupler is provided on one side of the silo, and a photoelectric coupler blocking piece is provided on the side surface of the moving slider corresponding to the reset photoelectric coupler.

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