A sample automatic picking device
By designing an automatic sample picking device, which utilizes components such as a picking arm and a servo motor to achieve random sample picking, the problem of insufficient randomness in existing devices is solved, thus improving the detection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN KANGBEIXIN BIOMEDICAL TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-08-04
AI Technical Summary
Existing sample selection devices, when performing random sampling tasks, suffer from insufficient randomness in sample selection due to the lack of a random mechanism in the path planning algorithm, which affects the detection effect.
An automatic sample picking device was designed. The device utilizes components such as a picking arm, servo motor, piezoelectric ceramic and ball bearings in the picking mechanism to achieve random sample picking through random ball bearing movement and electrical signal control.
It improves the randomness of sample selection, reduces systematic bias, and enhances detection results.
Smart Images
Figure CN224594205U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sample testing technology, specifically to an automatic sample picking device. Background Technology
[0002] In the current field of testing and analysis, sample picking devices, as key pretreatment equipment, are widely used in various industries such as food safety, environmental monitoring, drug development, and biological detection. Their core function is to select representative portions from a large number of raw samples for subsequent testing and analysis.
[0003] Existing sample picking devices typically employ robotic arms or pneumatic systems to grasp samples, with their movement trajectories controlled by preset programs. While this approach achieves a degree of automation and improves efficiency, when performing random sampling tasks, the lack of a truly random mechanism in the path planning algorithm often results in periodic or repetitive movement patterns. This trajectories not only reduce the randomness of sample selection but may also lead to some areas being frequently selected while others are ignored, introducing systemic bias and potentially affecting detection results.
[0004] Therefore, an automatic sample picking device is needed to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to provide an automatic sample picking device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An automatic sample picking device includes a sample conveyor belt, a picking mechanism is provided on the outer wall of the sample conveyor belt, a sliding plate is fixedly connected to the outer wall of the sample conveyor belt at a position away from the picking mechanism, a controller is installed on the outer wall of the sample conveyor belt, and a power plug is fixedly connected to the back of the sample conveyor belt.
[0008] The picking mechanism includes a fixed base fixedly connected to the outer wall of the sample conveyor belt. A picking arm is slidably connected to the outer wall of the fixed base. An electric push rod is fixedly connected to the outer wall of the picking arm and inside the fixed base. An upper turntable is rotatably connected to the inside of the fixed base and above the picking arm. A lower turntable is rotatably connected to the inside of the fixed base and below the upper turntable. Both the upper and lower turntables have through slots inside. A servo motor is fixedly connected to the center of the outer wall of both the upper and lower turntables. A piezoelectric ceramic is fixedly connected to the inside of the fixed base and below the lower turntable. A spiral conveyor belt is rotatably connected to the inside of the fixed base and near the piezoelectric ceramic. A drive motor is fixedly connected to the bottom end of the spiral conveyor belt. A guide tube is fixedly connected to the inside of the fixed base and near the spiral conveyor belt. A baffle is slidably connected to the inside of the guide tube. A ball bearing is slidably connected to the top of the baffle and inside the guide tube. A buffer pad is fixedly connected to the top of the piezoelectric ceramic.
[0009] As a preferred embodiment of this utility model, the slide plate is made of ABS plastic and is installed obliquely on the outer wall of the sample conveyor belt.
[0010] As a preferred embodiment of this utility model, the fixed base, upper turntable, lower turntable and baffle are all made of ABS plastic, the shape of the through groove is adapted to the shape of the ball, and the drive motor, servo motor and fixed base are all fixedly connected.
[0011] As a preferred embodiment of this utility model, multiple sets of through grooves and balls are provided, the servo motor drive shafts on the outer walls of the upper and lower turntables rotate in opposite directions, and the connection between the baffle and the fixed seat is a sliding connection.
[0012] As a preferred embodiment of this utility model, the baffle passes through the guide tube and extends to the outside of the fixed base, and the buffer pad is made of sponge.
[0013] As a preferred embodiment of this utility model, the piezoelectric ceramic is installed at an angle in the fixed base, and the piezoelectric ceramic, drive motor, servo motor, electric push rod and controller are all connected by electrical connection.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In this utility model, an automatic sample picking device is designed. The picking mechanism within this device picks up the sample, placing it on a sample conveyor belt. The conveyor belt moves the sample, pulling a baffle out of its fixed base. The baffle no longer obstructs the ball bearings, which slide down the guide tube into the upper turntable. The controller activates a servo motor, which drives both the upper and lower turntables to rotate. The rotating upper turntable causes the ball bearings to rotate. When the ball bearings move into the through-slot in the upper turntable, they fall onto the lower turntable and continue rotating with it. After moving through the through-slot in the lower turntable, the ball bearings pass through the slot and fall onto the piezoelectric ceramic. When the ceramic is struck by the ball bearings, it generates an electric current signal. Upon receiving this signal, the controller activates the electric push rod, which in turn moves the picking arm outward. This outward movement of the picking arm pushes the sample, which is parallel to the fixed base on the sample conveyor belt, into the slide plate. The sample then slides out of the sample conveyor belt along the slide plate. Each time a ball bearing falls onto the piezoelectric ceramic, the picking arm pushes the sample into the slide plate. The ball bearings randomly pass through the slots in the upper and lower turntables, thus randomly picking up the sample. This solves the problem that existing sample picking devices cannot randomly select samples, resulting in insufficient randomness in the picking effect and potentially affecting the detection results. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a side sectional view of the fixing base of this utility model;
[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.
[0019] In the diagram: 1. Sample conveyor belt; 2. Picking mechanism; 3. Slide plate; 4. Controller; 5. Power plug; 201. Fixed base; 202. Picking arm; 203. Electric push rod; 204. Upper turntable; 205. Lower turntable; 206. Through groove; 207. Servo motor; 208. Piezoelectric ceramic; 209. Spiral conveyor belt; 210. Drive motor; 211. Guide tube; 212. Baffle; 213. Ball bearing; 214. Buffer pad. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0021] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.
[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0024] For examples, please refer to Figure 1-3 This utility model provides a technical solution:
[0025] An automatic sample picking device includes a sample conveyor belt 1, a picking mechanism 2 provided on the outer wall of the sample conveyor belt 1, a sliding plate 3 fixedly connected to the outer wall of the sample conveyor belt 1 at a position away from the picking mechanism 2, a controller 4 installed on the outer wall of the sample conveyor belt 1, and a power plug 5 fixedly connected to the back of the sample conveyor belt 1.
[0026] The slide plate 3 is made of ABS plastic and is installed at an angle on the outer wall of the sample conveyor belt 1.
[0027] In this embodiment, reference Figure 2 and Figure 3The picking mechanism 2 includes a fixed base 201 fixedly connected to the outer wall of the sample conveyor belt 1. A picking arm 202 is slidably connected to the outer wall of the fixed base 201. An electric push rod 203 is fixedly connected to the outer wall of the picking arm 202 and inside the fixed base 201. An upper turntable 204 is rotatably connected inside the fixed base 201 and above the picking arm 202. A lower turntable 205 is rotatably connected inside the fixed base 201 and below the upper turntable 204. Both the upper turntable 204 and the lower turntable 205 have through slots 206 inside. A servo motor 20 is fixedly connected to the center of the outer wall of both the upper turntable 204 and the lower turntable 205. 7. A piezoelectric ceramic 208 is fixedly connected inside the fixed base 201 and below the lower turntable 205. A spiral conveyor belt 209 is rotatably connected inside the fixed base 201 and near the position of the piezoelectric ceramic 208. A drive motor 210 is fixedly connected to the bottom end of the spiral conveyor belt 209. A guide pipe 211 is fixedly connected inside the fixed base 201 and near the position of the spiral conveyor belt 209. A baffle 212 is slidably connected inside the guide pipe 211. A ball bearing 213 is slidably connected to the top of the baffle 212 and inside the guide pipe 211. A buffer pad 214 is fixedly connected to the top of the piezoelectric ceramic 208.
[0028] The fixed base 201, upper turntable 204, lower turntable 205, and baffle 212 are all made of ABS plastic. The shape of the through groove 206 is adapted to the shape of the ball 213. The drive motor 210 and servo motor 207 are fixedly connected to the fixed base 201. Multiple sets of through groove 206 and ball 213 are provided. The drive shafts of the servo motors 207 on the outer walls of the upper turntable 204 and lower turntable 205 rotate in opposite directions. The baffle 212 is slidably connected to the fixed base 201. The baffle 212 passes through the guide tube 211 and extends to the outside of the fixed base 201. The buffer pad 214 is made of sponge. The piezoelectric ceramic 208 is installed obliquely inside the fixed base 201. The piezoelectric ceramic 208, drive motor 210, servo motor 207, electric push rod 203, and controller 4 are all electrically connected.
[0029] The working process of this utility model is as follows: When the automatic sample picking device designed in this scheme is running, the sample is placed on the sample conveyor belt 1. The sample conveyor belt 1 moves the sample forward, pulling the baffle 212 out of the fixed seat 201. The baffle 212 no longer blocks the ball 213, and the ball 213 slides down along the guide tube 211 into the upper turntable 204. The controller 4 starts the servo motor 207, and the servo motor 207 drives the upper turntable 204. As the lower turntable 205 rotates, the rotating upper turntable 204 drives the ball bearing 213 to rotate. When the ball bearing 213 moves into the through groove 206 in the upper turntable 204, it passes downward through the through groove 206 and falls onto the lower turntable 205. The ball bearing 213 continues to rotate with the lower turntable 205. When the ball bearing 213 moves into the through groove 206 in the lower turntable 205, it passes through the through groove 206 and falls onto the piezoelectric ceramic 208. The piezoelectric ceramic 208 is subjected to... When the ball 213 impacts, it generates a current signal. After receiving the current signal generated by the piezoelectric ceramic 208, the controller 4 activates the electric push rod 203. The electric push rod 203 pushes the picking arm 202 outward. The outward-moving picking arm 202 pushes the sample on the sample conveyor belt 1, which is parallel to the fixed seat 201. The sample is pushed into the slide plate 3 by the picking arm 202 and slides out of the sample conveyor belt 1 along the slide plate 3. Whenever the ball 213 falls onto the piezoelectric ceramic 208, the controller 4 activates the electric push rod 203. The electric push rod 203 drives the picking arm 202 to push the sample into the slide plate 3. The ball 213 on the piezoelectric ceramic 208 moves to both sides and rolls into the spiral conveyor belt 209. The controller 4 drives the drive motor 210, which drives the spiral conveyor belt 209 to rotate. The rotating spiral conveyor belt 209 drives the ball 213 to move upward. The upward-moving ball 213 will enter the guide tube 211.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sample automatic picking device comprising a sample conveyor belt (1), characterized in that: The outer wall of the sample conveyor belt (1) is provided with a picking mechanism (2), and a sliding plate (3) is fixedly connected to the outer wall of the sample conveyor belt (1) at a position away from the picking mechanism (2). A controller (4) is installed on the outer wall of the sample conveyor belt (1), and a power plug (5) is fixedly connected to the back of the sample conveyor belt (1). The picking mechanism (2) includes a fixed base (201) fixedly connected to the outer wall of the sample conveyor belt (1). A picking arm (202) is slidably connected to the outer wall of the fixed base (201). An electric push rod (203) is fixedly connected to the outer wall of the picking arm (202) and inside the fixed base (201). An upper turntable (204) is rotatably connected inside the fixed base (201) and above the picking arm (202). A lower turntable (205) is rotatably connected inside the fixed base (201) and below the upper turntable (204). A through groove (206) is opened inside both the upper turntable (204) and the lower turntable (205). A servo motor (206) is fixedly connected to the center of the outer wall of both the upper turntable (204) and the lower turntable (205). 7) A piezoelectric ceramic (208) is fixedly connected inside the fixed base (201) and below the lower turntable (205). A spiral conveyor belt (209) is rotatably connected inside the fixed base (201) and near the piezoelectric ceramic (208). A drive motor (210) is fixedly connected to the bottom end of the spiral conveyor belt (209). A guide pipe (211) is fixedly connected inside the fixed base (201) and near the spiral conveyor belt (209). A baffle (212) is slidably connected inside the guide pipe (211). A ball bearing (213) is slidably connected to the top of the baffle (212) and inside the guide pipe (211). A buffer pad (214) is fixedly connected to the top of the piezoelectric ceramic (208).
2. The automatic sample picking device according to claim 1, wherein: The slide plate (3) is made of ABS plastic and is installed at an angle on the outer wall of the sample conveyor belt (1).
3. The automatic sample picking device according to claim 1, wherein: The fixed base (201), upper turntable (204), lower turntable (205) and baffle (212) are all made of ABS plastic. The shape of the through groove (206) is adapted to the shape of the ball (213). The drive motor (210), servo motor (207) and fixed base (201) are all fixedly connected.
4. The automatic sample picking device according to claim 1, wherein: Multiple sets of the through groove (206) and the ball bearings (213) are provided. The servo motors (207) on the outer walls of the upper turntable (204) and the lower turntable (205) rotate in opposite directions. The baffle (212) is connected to the fixed seat (201) by a sliding connection.
5. The automatic sample picking device according to claim 1, wherein: The baffle (212) passes through the guide tube (211) and extends to the outside of the fixed seat (201), and the buffer pad (214) is made of sponge.
6. The automatic sample picking device according to claim 1, wherein: The piezoelectric ceramic (208) is obliquely installed in the fixed seat (201), and the piezoelectric ceramic (208), the driving motor (210), the servo motor (207), the electric push rod (203) and the controller (4) are electrically connected.