A quality detection device with layered multi-point sampling function for milk powder production

Abstract

The application discloses a quality detection device with layered multi-point sampling function for milk powder production, and relates to the technical field of milk powder detection devices.The detection device comprises a box body, a top cover, a cabinet door, a control box, a sampling mechanism and a feeding mechanism.The cabinet door is hingedly connected to the box body.The sampling mechanism comprises a driving motor.The feeding mechanism comprises a sliding rail.The top cover, the control box and the sliding rail are fixedly connected to the box body.The driving motor is fixedly connected to the top cover.The sampling mechanism and the feeding mechanism are connected to the control box through electric signals.The application can sample and detect different points and different layers of canned milk powder, actively adjusts the milk powder in different layers for directional sampling and detection, and automatically cleans the sampler after detection, so that the next sampling is not interfered by residual samples, and the efficiency of milk powder sampling and detection is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of milk powder testing devices, specifically a quality testing device for milk powder production with stratified multi-point sampling function. Background Technology

[0002] Infant formula is a crucial source of nutrition for infants and young children, and its quality and safety are directly related to consumer health, especially affecting infants' growth and development. Therefore, establishing a rigorous and efficient testing system is essential to ensure that the safety, nutritional value, and quality of infant formula products meet national and international standards.

[0003] In this system, standardization and efficiency in the sampling process are key factors in improving overall testing efficiency. However, current sampling and testing procedures mainly rely on manual operation by testing personnel to collect samples and transfer them to test tubes. This manual sampling method has significant limitations, including low operational efficiency and the need for additional manual cleaning of the sampling equipment after sampling. Summary of the Invention

[0004] The purpose of this invention is to provide a quality testing device for milk powder production with stratified multi-point sampling function, so as to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A quality testing device for milk powder production with layered multi-point sampling function includes a box body, a top cover, a cabinet door, a control box, a sampling mechanism, and a feeding mechanism. The cabinet door is hinged to the box body. The sampling mechanism includes a drive motor. The feeding mechanism includes a slide rail. The top cover, control box, and slide rail are all fixedly connected to the box body. The drive motor is fixedly connected to the top cover. The sampling mechanism and the feeding mechanism are both connected to the control box via electrical signals.

[0006] This invention relates to a sampling and testing device for sampling finished canned milk powder. After the operator opens the can of milk powder, it is placed on the feeding mechanism. The opened milk powder is transported to the inside of the cabinet via a slide rail and the cabinet door is closed. The control box sends a control signal to the sampling mechanism to sample milk powder at multiple points and different layers of the canned milk powder. The sampled milk powder is transferred in batches to different test tubes for quality testing. After sampling is completed, the operator replaces the opened milk powder with can cleaning liquid. The sampling mechanism is moved into the cleaning liquid, and the drive motor outputs fixed-axis torque to perform self-cleaning of the sampling mechanism.

[0007] Furthermore, the sampling mechanism also includes a sampling mechanism, a three-axis mechanism, and a transmission mechanism. The sampling mechanism includes a first motor and a first outer cylinder. The three-axis mechanism includes a side frame and a first transverse slide. The transmission mechanism includes a second outer cylinder, a chassis, and a second gear rod. The first motor is fixedly connected to the side frame, the first outer cylinder is rotatably connected to the side frame, the first transverse slide is fixedly connected to the chassis, and the second gear rod is fixedly connected to the output end of the drive motor. The top cover is provided with a top hole, and the second outer cylinder is fixedly connected to the top hole. The drive motor, the sampling mechanism, and the three-axis mechanism are all connected to the control box via electrical signals.

[0008] The opened milk powder is placed in the feeding mechanism and transported into the box. The three-axis mechanism moves the sampling mechanism to different points above the opened milk powder. The sampling mechanism is inserted into the milk powder and simultaneously samples different layers of the opened milk powder. According to the sampling requirements, the control box sends an electrical signal to the sampling mechanism to adjust the sampling layer spacing so that the sampling mechanism can sample each layer of the opened milk powder at the same time. After the milk powder sample is collected, in order to ensure that the residual sample will not interfere with the next sampling, the operator replaces the opened milk powder with can cleaning solution. The sampling mechanism is moved into the cleaning solution, and the drive motor outputs fixed shaft torque to drive the sampling mechanism to rotate and perform self-cleaning.

[0009] Furthermore, the sampling mechanism also includes a first gear rod, a first cylinder, and an inner cylinder. The first outer cylinder is provided with a first side tooth groove. The first gear rod is fixedly connected to the output end of the first motor. The first gear rod meshes with the tooth surface of the first side tooth groove. The first cylinder is fixedly connected to the first outer cylinder. The output end of the first cylinder is fixedly connected to the inner cylinder. The inner cylinder is slidably connected to the first outer cylinder.

[0010] During sampling, the first motor outputs a fixed-axis torque to the first gear rod. Through the meshing of the teeth between the first gear rod and the first side tooth groove, the fixed-axis torque of the first motor output section is transmitted to the first outer cylinder, causing the first outer cylinder to rotate around its axis. At the same time, the output end of the first cylinder pushes the inner cylinder to move away from the first motor at a constant speed, causing the screw rod to move helically away from the first motor along its axis. After the screw rod rotates and enters the sample from the can, the milk powder samples of different layers are located in the gap of the screw rod. The output end of the first cylinder drives the inner cylinder to move closer to the first motor, and the screw rod carries the sample milk powder to the first outer cylinder.

[0011] Furthermore, the sampling mechanism also includes a second cylinder, a screw rod, and a pull rod. The second cylinder and the screw rod are both fixedly connected to the inner cylinder. The output end of the second cylinder is fixedly connected to the pull rod. The inner cylinder is provided with a sliding hole, and the pull rod is slidably connected to the sliding hole. The screw rod contacts the inner wall of the first outer cylinder and is provided with a through hole. The end of the pull rod away from the second cylinder is fixedly connected to the screw rod, and the pull rod contacts the through hole. The first motor, the first cylinder, and the second cylinder are all connected to the control box via electrical signals.

[0012] The screw rod is made of rubber. One end of the screw rod is fixed to the inner cylinder, and the other end is fixedly assembled with the pull rod. During sampling, according to the sampling requirements, the output end of the second cylinder drives the pull rod to move, and the pull rod drives the rubber screw rod to deform, changing the thread pitch of the screw rod. The output end of the first cylinder drives the inner cylinder to move closer to the first motor, and the screw rod carries the sample milk powder to the first outer cylinder. The outer diameter edge of the screw rod contacts the inner wall of the first outer cylinder.

[0013] Furthermore, the three-axis mechanism also includes a second transverse slide and a longitudinal slide. The second transverse slide is slidably connected to the first transverse slide, the longitudinal slide is slidably connected to the second transverse slide, and the side frame is slidably connected to the longitudinal slide. The first transverse slide, the second transverse slide, and the longitudinal slide are all connected to the control box via electrical signals.

[0014] Through the sliding assembly between the second transverse slide and the first transverse slide, the longitudinal slide drives the sampling mechanism to move above different points of the opened milk powder, and the side frame slides down along the longitudinal slide, and the sampling mechanism samples the milk powder.

[0015] Furthermore, the transmission mechanism also includes a rotating column, which has a second side tooth groove. The second gear rod meshes with the tooth surface of the second side tooth groove, and the rotating column is rotatably connected to the second outer cylinder.

[0016] During the self-cleaning operation, the operator replaces the opened milk powder with canned cleaning liquid. The side frame is adjusted by the sliding assembly between the second and first transverse slides, causing the sampling mechanism to deviate from the axis of the rotating column. The drive motor outputs fixed-axis torque to the second gear rod. Through the meshing of the teeth between the second gear rod and the second side tooth groove, the rotating column drives the sampling mechanism to revolve around its axis in the cleaning liquid via the chassis, accelerating the cleaning of residual samples on the screw rod.

[0017] Furthermore, the feeding mechanism also includes an electric slide table and a test tube rack. The positioning ring is slidably connected to the slide rail, the test tube rack is fixedly connected to the electric slide table, and the electric slide table is connected to the control box via an electrical signal.

[0018] After the operator opens the canned milk powder, it is placed on the positioning ring. The positioning ring transports the canned milk powder along the slide rail to the inside of the cabinet and closes the door. When sampling, the output end of the first cylinder pushes the inner cylinder to move away from the first motor, and the milk powder sample carried by the screw rod is transferred in batches to different test tubes in the test tube rack for testing.

[0019] Furthermore, the feeding mechanism also includes a positioning ring, a clamping block, and a compression spring. The positioning ring is fixedly connected to the electric slide table. The positioning ring is provided with a sliding groove. Several sets of sliding grooves, clamping blocks, and compression springs are provided. Several sets of sliding grooves, clamping blocks, and compression springs are evenly distributed along the circumference of the positioning ring. The clamping block is slidably connected to the sliding groove, and the compression spring is fixedly connected to the sliding groove and the clamping block.

[0020] After the operator opens the can of milk powder, it is placed at the center of the positioning ring. Several sets of clamping blocks evenly distributed around the circumference of the positioning ring contact the can of milk powder. Through the compression spring, the force of the compression spring to restore the deformation can clamp different cans of milk powder.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention designs a sampling mechanism. During sampling, the first motor outputs a fixed-axis torque to the first gear rod, causing the first outer cylinder to rotate around its axis. Simultaneously, the output end of the first cylinder pushes the inner cylinder away from the first motor at a uniform speed, causing the screw rod to move helically along its axis. After the screw rod rotates and enters the opened sample, the milk powder samples of different layers are located in the gap between the screw rods. The screw rod is made of rubber, with one end fixed to the inner cylinder and the other end fixedly assembled with the pull rod. According to the sampling requirements, the output end of the second cylinder drives the pull rod to move, and the pull rod causes the rubber screw rod to deform, changing the thread pitch of the screw rod. The output end of the first cylinder drives the screw rod to carry the sample milk powder to the first outer cylinder. The outer diameter edge of the screw rod contacts the inner wall of the first outer cylinder. The output end of the first cylinder pushes the inner cylinder away from the first motor, transferring the sample milk powder carried by the screw rod in batches to the test tube rack. Different test tubes are used for testing, and a deformable screw rod is used to simultaneously sample different points and layers of canned milk powder. This invention features a three-axis mechanism. During self-cleaning, the operator replaces the opened milk powder with the cleaning solution. The side frame is adjusted by sliding the second and first transverse slides to deviate the sampling mechanism from the axis of the rotating column. The drive motor outputs a fixed-axis torque to the second gear rod. Through the meshing of the teeth between the second gear rod and the second side tooth groove, the rotating column drives the sampling mechanism to revolve around its axis in the cleaning solution via the chassis, accelerating the cleaning of residual samples on the screw rod and ensuring that residual samples will not interfere with the next sampling. This invention can sample and test different points and layers of canned milk powder. By actively adjusting, it performs directional sampling and testing of milk powder in different layers. After the test is completed, the sampler self-cleans, avoiding residual samples from interfering with the next sampling, and greatly improving the efficiency of milk powder sampling and testing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a partial sectional view of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the sampling mechanism structure of the present invention;

[0025] Figure 4 for Figure 3 A magnified view of part A;

[0026] Figure 5 This is a schematic diagram of the sampling mechanism structure of the present invention;

[0027] Figure 6 This is a partial cross-sectional view of the sampling mechanism of the present invention;

[0028] Figure 7 This is a schematic diagram of the transmission mechanism structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the feeding mechanism of the present invention;

[0030] Figure 9 for Figure 8 A magnified schematic diagram of part B.

[0031] In the diagram: 1. Cabinet body; 2. Top cover; 21. Top hole; 3. Cabinet door; 4. Control box; 5. Sampling mechanism; 51. Drive motor; 52. Sampling mechanism; 521. First motor; 522. First gear rod; 523. First outer cylinder; 5231. First side tooth groove; 524. First cylinder; 525. Inner cylinder; 5251. Sliding hole; 526. Second cylinder; 527. Screw rod; 5271. Through hole; 528. Pull rod; 53. Three-axis mechanism; 531, side frame; 532, first transverse slide; 533, second transverse slide; 534, longitudinal slide; 54, transmission mechanism; 541, second outer cylinder; 542, chassis; 543, rotating column; 5431, second side tooth groove; 544, second gear rod; 6, feeding mechanism; 61, slide rail; 62, electric slide; 63, test tube rack; 64, positioning ring; 641, slide groove; 65, clamping block; 66, compression spring. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figure 1 , Figure 2 As shown, the present invention provides a technical solution for a quality testing device for milk powder production with a multi-point sampling function, comprising a housing 1, a top cover 2, a cabinet door 3, a control box 4, a sampling mechanism 5, and a feeding mechanism 6. The cabinet door 3 is hinged to the housing 1. The sampling mechanism 5 includes a drive motor 51. The feeding mechanism 6 includes a slide rail 61. The top cover 2, the control box 4, and the slide rail 61 are all fixedly connected to the housing 1. The drive motor 51 is fixedly connected to the top cover 2. The sampling mechanism 5 and the feeding mechanism 6 are both connected to the control box 4 via electrical signals.

[0034] This invention is a sampling and testing device for sampling finished canned milk powder. After the operator opens the can of milk powder, it is placed on the feeding mechanism 6. The opened milk powder is transported to the inside of the cabinet 1 via the slide rail 61 and the cabinet door 3 is closed. The control box 4 sends a control signal to the sampling mechanism 5 to sample milk powder at multiple points and different layers of the canned milk powder. The sampled milk powder is transferred in batches to different test tubes for quality testing. After sampling is completed, the operator replaces the opened milk powder with can cleaning liquid. The sampling mechanism 5 is moved into the cleaning liquid, and the drive motor 51 outputs fixed-axis torque to perform self-cleaning of the sampling mechanism 5.

[0035] like Figure 3 As shown, the sampling mechanism 5 also includes a sampling mechanism 52, a three-axis mechanism 53, and a transmission mechanism 54. The sampling mechanism 52 includes a first motor 521 and a first outer cylinder 523. The three-axis mechanism 53 includes a side frame 531 and a first transverse slide 532. The transmission mechanism 54 includes a second outer cylinder 541, a chassis 542, and a second gear rod 544. The first motor 521 is fixedly connected to the side frame 531, the first outer cylinder 523 is rotatably connected to the side frame 531, the first transverse slide 532 is fixedly connected to the chassis 542, and the second gear rod 544 is fixedly connected to the output end of the drive motor 51. The top cover 2 is provided with a top hole 21, and the second outer cylinder 541 is fixedly connected to the top hole 21. The drive motor 51, the sampling mechanism 52, and the three-axis mechanism 53 are all connected to the control box 4 via electrical signals.

[0036] The opened milk powder is placed on the feeding mechanism 6 and transported to the inside of the box 1. The three-axis mechanism 53 moves the sampling mechanism 52 above different points of the opened milk powder and lowers the sampling mechanism 52 into the milk powder. The sampling mechanism 52 simultaneously samples different layers of the opened milk powder. According to the sampling requirements, the control box 4 sends an electrical signal to the sampling mechanism 52 to adjust the sampling layer spacing so that the sampling mechanism 52 can simultaneously sample each layer of the opened milk powder. After the milk powder sample is collected, in order to ensure that the residual sample will not interfere with the next sampling, the operator replaces the opened milk powder with the can cleaning solution. The sampling mechanism 5 is moved into the cleaning solution, and the drive motor 51 outputs fixed shaft torque to drive the sampling mechanism 5 to rotate and perform self-cleaning.

[0037] like Figure 4 As shown, the sampling mechanism 52 also includes a first gear rod 522, a first cylinder 524, and an inner cylinder 525. The first outer cylinder 523 is provided with a first side tooth groove 5231. The first gear rod 522 is fixedly connected to the output end of the first motor 521. The first gear rod 522 meshes with the tooth surface of the first side tooth groove 5231. The first cylinder 524 is fixedly connected to the first outer cylinder 523. The output end of the first cylinder 524 is fixedly connected to the inner cylinder 525. The inner cylinder 525 is slidably connected to the first outer cylinder 523.

[0038] During sampling, the first motor 521 outputs a fixed-axis torque to the first gear rod 522. Through the meshing of the teeth between the first gear rod 522 and the first side tooth groove 5231, the fixed-axis torque of the first motor 521 is transmitted to the first outer cylinder 523, causing the first outer cylinder 523 to rotate around its axis. At the same time, the output end of the first cylinder 524 pushes the inner cylinder 525 to move away from the first motor 521 at a constant speed, causing the screw rod 527 to move helically away from the first motor 521 along its axis. After the screw rod 527 rotates into the opened sample, the milk powder samples of different layers are located in the gap of the screw rod 527. The output end of the first cylinder 524 drives the inner cylinder 525 to move closer to the first motor 521, and the screw rod 527 carries the sample milk powder to the first outer cylinder 523.

[0039] like Figure 5 , Figure 6 As shown, the sampling mechanism 52 also includes a second cylinder 526, a screw rod 527, and a pull rod 528. The second cylinder 526 and the screw rod 527 are both fixedly connected to the inner cylinder 525. The output end of the second cylinder 526 is fixedly connected to the pull rod 528. The inner cylinder 525 is provided with a sliding hole 5251. The pull rod 528 is slidably connected to the sliding hole 5251. The screw rod 527 contacts the inner wall of the first outer cylinder 523. The screw rod 527 is provided with a through hole 5271. The end of the pull rod 528 away from the second cylinder 526 is fixedly connected to the screw rod 527. The pull rod 528 contacts the through hole 5271. The first motor 521, the first cylinder 524, and the second cylinder 526 are all connected to the control box 4 via electrical signals.

[0040] The screw rod 527 is made of rubber. One end of the screw rod 527 is fixed to the inner cylinder 525, and the other end is fixedly assembled with the pull rod 528. During sampling, according to the sampling requirements, the output end of the second cylinder 526 drives the pull rod 528 to move. The pull rod 528 causes the rubber screw rod 527 to deform, and the thread pitch of the screw rod 527 changes. The output end of the first cylinder 524 drives the inner cylinder 525 to move closer to the first motor 521. The screw rod 527 carries the sample milk powder to the first outer cylinder 523, and the outer diameter edge of the screw rod 527 contacts the inner wall of the first outer cylinder 523.

[0041] like Figure 4 As shown, the three-axis mechanism 53 also includes a second transverse slide 533 and a longitudinal slide 534. The second transverse slide 533 is slidably connected to the first transverse slide 532, and the longitudinal slide 534 is slidably connected to the second transverse slide 533. The side frame 531 is slidably connected to the longitudinal slide 534. The first transverse slide 532, the second transverse slide 533, and the longitudinal slide 534 are all connected to the control box 4 via electrical signals.

[0042] Through the sliding assembly between the second transverse slide 533 and the first transverse slide 532, the longitudinal slide 534 drives the sampling mechanism 52 to move above different points of the opened milk powder, the side frame 531 slides down along the longitudinal slide 534, and the sampling mechanism 52 samples the milk powder.

[0043] like Figure 7 As shown, the transmission mechanism 54 also includes a rotating column 543, which has a second side tooth groove 5431. The second gear rod 544 meshes with the tooth surface of the second side tooth groove 5431, and the rotating column 543 is rotatably connected to the second outer cylinder 541.

[0044] During the self-cleaning operation, the operator replaces the opened milk powder with the canned cleaning solution. The side frame 531 is adjusted by the sliding assembly between the second transverse slide 533 and the first transverse slide 532, so that the sampling mechanism 52 deviates from the axis of the rotating column 543. The drive motor 51 outputs fixed-axis torque to the second gear rod 544. Through the meshing of the tooth surfaces between the second gear rod 544 and the second side tooth groove 5431, the rotating column 543 drives the sampling mechanism 52 to revolve around its axis in the cleaning solution through the chassis 542, accelerating the cleaning of residual samples on the screw rod 527.

[0045] like Figure 8 As shown, the feeding mechanism 6 also includes an electric slide table 62 and a test tube rack 63. The positioning ring 64 is slidably connected to the slide rail 61, the test tube rack 63 is fixedly connected to the electric slide table 62, and the electric slide table 62 is connected to the control box 4 via an electrical signal.

[0046] After the operator opens the canned milk powder, it is placed on the positioning ring 64. The positioning ring 64 transports the canned milk powder along the slide rail 61 to the inside of the cabinet 1 and closes the cabinet door 3. When sampling, the output end of the first cylinder 524 pushes the inner cylinder 525 to move away from the first motor 521, and the screw rod 527 carries the sample milk powder in batches to different test tubes in the test tube rack 63 for testing.

[0047] like Figure 9 As shown, the feeding mechanism 6 also includes a positioning ring 64, a clamping block 65, and a compression spring 66. The positioning ring 64 is fixedly connected to the electric slide table 62. The positioning ring 64 is provided with a sliding groove 641. Several sets of sliding grooves 641, clamping blocks 65, and compression springs 66 are provided. Several sets of sliding grooves 641, clamping blocks 65, and compression springs 66 are evenly distributed along the circumference of the positioning ring 64. The clamping block 65 is slidably connected to the sliding groove 641, and the compression spring 66 is fixedly connected to the sliding groove 641 and the clamping block 65.

[0048] After the operator opens the can of milk powder, it is placed at the center of the positioning ring 64. Several sets of clamping blocks 65, evenly distributed around the circumference of the positioning ring 64, contact the can of milk powder. Through the compression spring 66, the force of the compression recovery deformation can be used to clamp different cans of milk powder.

[0049] The working principle of this invention: After the operator opens the canned milk powder, it is placed on the feeding mechanism 6. The opened milk powder is transported to the inside of the cabinet 1 via the slide rail 61 and the cabinet door 3 is closed. The control box 4 sends a control signal to the sampling mechanism 5 to sample milk powder of different layers at multiple points on the canned milk powder. The sampled milk powder is transferred in batches to different test tubes for quality testing. During sampling, the first motor 521 outputs a fixed-axis torque to the first gear rod 522, causing the first outer cylinder 523 to rotate around its axis. At the same time, the output end of the first cylinder 524 pushes the inner cylinder 525 away from the first motor 521 at a uniform speed, causing the screw rod 527 to spirally move away from the first motor 521 along its axis. After the screw rod 527 rotates into the opened sample, the milk powder samples of different layers are located in the gap of the screw rod 527. The output end of the first cylinder 524 drives the inner cylinder 525 to move closer to the first motor 521. The screw rod 527 carries the sample milk powder to the first outer cylinder 523. 527 is made of rubber. One end of the screw rod 527 is fixed to the inner cylinder 525, and the other end is fixedly assembled with the pull rod 528. During sampling, according to the sampling requirements, the output end of the second cylinder 526 drives the pull rod 528 to move. The pull rod 528 causes the rubber screw rod 527 to deform, changing the thread pitch of the screw rod 527. The output end of the first cylinder 524 drives the inner cylinder 525 to move closer to the first motor 521. The screw rod 527 carries the sample milk powder to the first outer cylinder 525. 23. The outer diameter edge of the screw rod 527 contacts the inner wall of the first outer cylinder 523. The output end of the first cylinder 524 pushes the inner cylinder 525 to move away from the first motor 521, transferring the sample milk powder carried by the screw rod 527 in batches to different test tubes of the test tube rack 63 for testing. After sampling is completed, the operator replaces the opened milk powder with the can cleaning liquid. The sampling mechanism 5 moves into the cleaning liquid, and the drive motor 51 outputs fixed-axis torque to perform self-cleaning of the sampling mechanism 5.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quality testing device for milk powder production with stratified multi-point sampling function, characterized in that: The detection device includes a housing (1), a top cover (2), a cabinet door (3), a control box (4), a sampling mechanism (5), and a feeding mechanism (6). The cabinet door (3) is hinged to the housing (1). The sampling mechanism (5) includes a drive motor (51). The feeding mechanism (6) includes a slide rail (61). The top cover (2), the control box (4), and the slide rail (61) are all fixedly connected to the housing (1). The drive motor (51) is fixedly connected to the top cover (2). The sampling mechanism (5) and the feeding mechanism (6) are both connected to the control box (4) via electrical signals. The sampling mechanism (5) further includes a sampling mechanism (52), a three-axis mechanism (53), and a transmission mechanism (54). The sampling mechanism (52) includes a first motor (521) and a first outer cylinder (523). The three-axis mechanism (53) includes a side frame (531) and a first transverse slide (532). The transmission mechanism (54) includes a second outer cylinder (541), a chassis (542), and a second gear rod (544). The first motor (521) is fixed to the side frame (531). The first outer cylinder (523) is rotatably connected to the side frame (531), the first transverse slide (532) is fixedly connected to the chassis (542), the second gear rod (544) is fixedly connected to the output end of the drive motor (51), the top cover (2) is provided with a top hole (21), the second outer cylinder (541) is fixedly connected to the top hole (21), and the drive motor (51), sampling mechanism (52), and three-axis mechanism (53) are all connected to the control box (4) by electrical signals. The sampling mechanism (52) further includes a first gear rod (522), a first cylinder (524), and an inner cylinder (525). The first outer cylinder (523) is provided with a first side tooth groove (5231). The first gear rod (522) is fixedly connected to the output end of the first motor (521). The first gear rod (522) meshes with the tooth surface of the first side tooth groove (5231). The first cylinder (524) is fixedly connected to the first outer cylinder (523). The output end of the first cylinder (524) is fixedly connected to the inner cylinder (525). The inner cylinder (525) is slidably connected to the first outer cylinder (523). The sampling mechanism (52) further includes a second cylinder (526), ​​a screw rod (527), and a pull rod (528). The second cylinder (526) and the screw rod (527) are fixedly connected to the inner cylinder (525). The output end of the second cylinder (526) is fixedly connected to the pull rod (528). The inner cylinder (525) is provided with a sliding hole (5251). The pull rod (528) is slidably connected to the sliding hole (5251). The screw rod (527) is in contact with the inner wall of the first outer cylinder (523). The screw rod (527) is provided with a through hole (5271). The end of the pull rod (528) away from the second cylinder (526) is fixedly connected to the screw rod (527). The pull rod (528) is in contact with the through hole (5271). The first motor (521), the first cylinder (524), and the second cylinder (526) are all connected to the control box (4) via electrical signals. The feeding mechanism (6) also includes an electric slide (62) and a test tube rack (63). The electric slide (62) is slidably connected to the slide rail (61), and the test tube rack (63) is fixedly connected to the electric slide (62). The electric slide (62) is connected to the control box (4) via an electrical signal.

2. The quality testing device for milk powder production with stratified multi-point sampling function according to claim 1, characterized in that: The three-axis mechanism (53) further includes a second transverse slide (533) and a longitudinal slide (534). The second transverse slide (533) is slidably connected to the first transverse slide (532). The longitudinal slide (534) is slidably connected to the second transverse slide (533). The side frame (531) is slidably connected to the longitudinal slide (534). The first transverse slide (532), the second transverse slide (533), and the longitudinal slide (534) are all connected to the control box (4) via electrical signals.

3. The quality testing device for milk powder production with stratified multi-point sampling function according to claim 1, characterized in that: The transmission mechanism (54) further includes a rotating column (543), on which a second side tooth groove (5431) is provided. The second gear rod (544) meshes with the tooth surface of the second side tooth groove (5431), and the rotating column (543) is rotatably connected to the second outer cylinder (541).

4. The quality testing device for milk powder production with stratified multi-point sampling function according to claim 1, characterized in that: The feeding mechanism (6) further includes a positioning ring (64), a clamping block (65), and a compression spring (66). The positioning ring (64) is fixedly connected to the electric slide table (62). The positioning ring (64) is provided with a sliding groove (641). The sliding groove (641), clamping block (65), and compression spring (66) are provided in several groups. The several groups of sliding grooves (641), clamping blocks (65), and compression springs (66) are evenly distributed along the circumference of the positioning ring (64). The clamping block (65) is slidably connected to the sliding groove (641). The compression spring (66) is fixedly connected to the sliding groove (641) and the clamping block (65).

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