Workbench applied to milk product detection

Abstract

The invention relates to the technical field of milk product detection, in particular to a working table applied to milk product detection, which comprises a working platform, an L-shaped fixing plate is fixed at the top of the working platform, vertical plates are symmetrically fixed at the top of the working platform and positioned in front of and behind the L-shaped fixing plate, and an adjusting mechanism is arranged at the bottom of a horizontal section of the L-shaped fixing plate. And a multi-stage electric push rod is installed at the bottom of the adjusting mechanism, a sampling mechanism is arranged at the pushing end of the multi-stage electric push rod, and positioning mechanisms are symmetrically arranged on the two vertical plates front and back with the adjusting mechanism as the center. The adjusting mechanism is adopted to adjust the position of the sampling mechanism, so that the sampling mechanism can be located in different areas to sample milk products, the representativeness of samples is further improved, a separation component in the sampling mechanism can be matched with an extraction component to extract the milk products at different depths and temporarily store the milk products, and the sampling efficiency is improved. Therefore, the representativeness of the sample is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of milk product detection, in particular to a workbench used for milk product detection. Background Art

[0002] Milk products refer to various foods made from milk as the main raw material through different processing techniques. Common milk products in real life include liquid milk products and paste yogurt-like milk products. The testing of these two types of milk products is crucial to protecting consumer health, maintaining product quality, and promoting industrial development. Milk product testing usually includes but is not limited to microbial testing, chemical composition analysis, and physical property testing. Before conducting milk product testing, the correct sampling method is very important because it directly affects the accuracy and reliability of the test results.

[0003] Among the existing milk detection sampling equipment, there is a utility model patent with publication number CN216207843U that discloses a liquid sampling system. This technical solution is provided with a stirring device and a peristaltic pump sampling device, which can achieve uniform sampling, and is provided with an upper sampling port and a bottom sampling port, which can be sampled in layers as needed.

[0004] Although the above technical solution can perform sampling by upper and bottom layered sampling, since a large amount of milk products are sampled from the production line and stored in a sealed container, although the above stirring device can make the milk products uniform to a certain extent, only using a single upper and bottom sampling position will still result in insufficient representativeness of the sample; in addition, there are many positions where the above device contacts the milk products, among which the peristaltic pump sampling device, the upper sampling port and the bottom sampling port will produce residues of the previously sampled milk products, and the residual milk products will cause deviations in the sample test results of the subsequently sampled milk products, so the above parts need to be cleaned, but cleaning the peristaltic pump sampling device, the upper sampling port and the bottom sampling port is relatively cumbersome and difficult. Summary of the invention

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a workbench for milk product testing, including a work platform, an L-shaped fixed plate is fixed on the top of the work platform, vertical plates are symmetrically fixed on the top of the work platform and located in the front and rear of the L-shaped fixed plate, an adjustment mechanism is arranged at the bottom of the horizontal section of the L-shaped fixed plate, a multi-stage electric push rod is installed at the bottom of the adjustment mechanism, a sampling mechanism is arranged at the pushing end of the multi-stage electric push rod, and positioning mechanisms are symmetrically arranged on the two vertical plates with the adjustment mechanism as the center; the adjustment mechanism includes a cross-shaped frame fixed at the bottom of the horizontal section of the L-shaped fixed plate, a cross-limiting groove is arranged in the cross-shaped frame, a multi-directional slider is slidably connected in the cross-limiting groove, and the multi-directional slider and the L A fixing component is commonly connected between the horizontal sections of the fixed plate, and the multi-directional slider is connected to the multi-stage electric push rod; the sampling mechanism includes a sampling block fixed on the multi-stage electric push rod, a sampling bin is arranged on the right side of the sampling block, a partition component is arranged inside the sampling block, the partition component is used to divide the sampling bin into a plurality of sampling areas, an extraction component is arranged corresponding to each sampling area in the sampling block, a pushing component for sequentially controlling the extraction component is fixed at the left end of the top of the sampling block, an extraction port is arranged on the right side of the sampling block corresponding to each sampling area, and a closing component for closing the extraction port is fixed at the right end of the top of the sampling block; the positioning mechanism is used to position the container for holding the target milk product for sampling.

[0006] Preferably, the fixing member comprises a positioning plate fixed to each side of the multi-directional slider, the positioning plate is provided with a positioning hole, and a positioning seat is fixed to the bottom of the horizontal section of the L-shaped fixing plate and at each end of the cross-shaped frame.

[0007] Preferably, the partition member includes a plurality of horizontal slide grooves opened in the sampling block, each of the horizontal slide grooves is slidably connected with a partition, all the partitions divide the sampling chamber into a plurality of sampling areas, a connecting plate is commonly fixed at the left ends of all the partitions, two mounting holes are arranged in the middle of the upper partition, a left extension plate is fixed on the left side of the sampling block, the left extension plate is located below the upper partition, a matching hole is opened on the left extension plate, and a positioning pin is connected between the matching hole and the mounting hole at the corresponding position.

[0008] Preferably, a lower opening is provided at the right end of the bottom of the sampling block, the lower opening is connected to the sampling chamber, a closing plate is provided at the bottom of the sampling block and located at the position of the lower opening, a fixing seat is fixed at the right end of the bottom of the closing plate, a threaded hole is provided at the bottom of the sampling block and corresponding to the position of the fixing seat, a positioning screw is connected between the fixing seat and the threaded hole, and a partition is slidably connected through the lower opening to enable the sampling chamber to be quickly cleaned.

[0009] Preferably, the extraction component includes a piston plate arranged in the sampling area of ​​the sampling chamber, a through rod is fixed on the left side of the piston plate, the left end of the through rod slides through the sampling block, a sealing rubber pad is arranged between the through rod and the sampling block, a pushing structure cooperating with the pushing component is arranged at the left end of the through rod, an avoidance ring groove is opened on the left side wall of the sampling chamber corresponding to each through rod, and a compression spring is connected between the left side wall of the avoidance ring groove and the piston plate.

[0010] Preferably, the pushed structure comprises a longitudinal rod fixed to the left end of the through rod, and pushed trapezoidal blocks are symmetrically fixed to the front and rear sides of the longitudinal rod, and the top of the pushed trapezoidal blocks is a pushed inclined surface.

[0011] Preferably, the pushing member includes a vertical slide rail fixed at the top left end of the sampling block, a moving rod is connected to the left side of the vertical slide rail through an electric slider, lower extension rods are symmetrically fixed at the front and rear ends of the moving rod, and a pushing inclined surface matching the pushed inclined surface is provided at the bottom of the lower extension rod.

[0012] Preferably, the closing member comprises an L-shaped upper extension rod fixed at the top right end of the sampling block, a horizontal section of the L-shaped upper extension rod being slidably penetrated by a vertical nail, a square plate being fixed at the bottom of the vertical nail, a plurality of leakage holes being evenly provided on the square plate, each leakage hole being at the same distance from the corresponding extraction port, a through hole being provided at the right end of the horizontal section of the L-shaped upper extension rod, two through holes being provided in the middle of the vertical nail, a horizontal pin being connected between the through hole and the through holes at corresponding positions.

[0013] Preferably, an avoidance groove is provided between the piston plate and the through rod, the left end of the avoidance groove is connected to an inner slide rod via an inner spring, and a push slope is provided on the square plate at a position corresponding to the leakage hole.

[0014] Preferably, the positioning mechanism includes a horizontal slide bar slidably connected to the middle of the vertical plate, an arc-shaped limit plate is fixed to the left end of the horizontal slide bar, a circular plate is fixed to the right end of the horizontal slide bar, and a horizontal spring is connected between the circular plate and the vertical plate.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention adopts an adjusting mechanism to adjust the position of the sampling mechanism, so that the sampling mechanism can be located in different areas to sample milk products, thereby improving the representativeness of the samples, and the partitioning components in the sampling mechanism can cooperate with the extraction components to extract and temporarily store milk products at different depths, thereby further increasing the representativeness of the samples, and then by sampling and testing samples of milk products at different positions and depths, reducing the randomness of the test results.

[0016] 2. The present invention adopts a detachable closing plate in conjunction with a connecting plate that can synchronously drive the partition to move to the left, so that the sampling area in the sampling bin can be quickly cleaned, thereby avoiding the situation where the detection result after the subsequent sampling is completed is biased due to the residual milk product previously sampled in the sampling bin. At the same time, in the process of controlling the pushing component to cooperate with the extraction component to fully discharge the milk product in the sampling bin, the inner sliding rod cooperates with the pushing slope so that the inner sliding rod can fully discharge the milk product remaining at the extraction port position, thereby further avoiding the situation where the residual milk product affects the subsequent sample detection.

[0017] 3. The present invention adopts a method in which a pushing member drives an extracting member from top to bottom to extract milk products, thereby sampling milk products from top to bottom, thereby avoiding sampling the milk products at the lower position first, which causes a large-area flow of the milk products above the sampling position, causing the milk products at the same position to be mixed products, making the sample of the milk product after sampling unrepresentative.

[0018] Fourth, the present invention adopts a positioning mechanism to position the storage barrel for storing milk products, so as to cooperate with the adjustment mechanism to make the sampling position of the milk product consistent each time, thereby ensuring the accuracy of sampling. At the same time, the milk product is extracted by the piston plate in the extraction component, which can not only extract an equal amount of milk product to flow through the extraction port and finally fill the position between the sampling chamber and the piston plate, thereby further improving the accuracy of milk product sampling, but also can be used for liquid milk products and paste-like yogurt milk products through this extraction and sampling method, thereby increasing the applicability of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the first viewing angle structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of the second viewing angle of the present invention.

[0022] Figure 3 It is a structural schematic diagram of the vertical plate and the positioning mechanism in the present invention.

[0023] Figure 4 It is a structural schematic diagram of the L-shaped fixing plate, the adjusting mechanism and the sampling mechanism in the present invention.

[0024] Figure 5 yes Figure 5 Enlarged view of point A in the middle.

[0025] Figure 6It is a schematic structural diagram of the sampling mechanism in the present invention from the first viewing angle.

[0026] Figure 7 It is a schematic diagram of the second viewing angle structure of the sampling mechanism in the present invention.

[0027] Figure 8 It is a partial cross-sectional view of the sampling mechanism in the present invention.

[0028] In the figure: 1. working platform; 11. L-shaped fixing plate; 12. vertical plate; 13. multi-stage electric push rod; 2. adjusting mechanism; 21. cross frame; 211. cross limit groove; 212. multi-directional slider; 22. fixing member; 221. positioning plate; 222. positioning hole; 223. positioning seat; 3. sampling mechanism; 31. sampling block; 311. sampling chamber; 312. extraction port; 313. lower opening; 314. closing plate; 315. fixing seat; 32. partition member; 321. horizontal slide groove; 322. partition; 323. Connecting plate; 324. Mounting hole; 325. Left extension plate; 33. Extraction member; 331. Piston plate; 332. Through rod; 333. Compression spring; 334. Longitudinal rod; 335. Pushed trapezoidal block; 34. Pushing member; 341. Vertical slide rail; 342. Moving rod; 343. Lower extension rod; 35. Closing member; 351. L-shaped upper extension rod; 352. Vertical nail; 353. Square plate; 354. Inner slide rod; 4. Positioning mechanism; 41. Horizontal slide rod; 411. Arc-shaped limit plate; 412. Round plate. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product specifications are used.

[0030] See also Figure 1-Figure 2 A workbench used for milk product testing includes a work platform 1, an L-shaped fixed plate 11 is fixed on the top of the work platform 1, vertical plates 12 are symmetrically fixed on the top of the work platform 1 and located in the front and rear of the L-shaped fixed plate 11, an adjustment mechanism 2 is arranged at the bottom of the horizontal section of the L-shaped fixed plate 11, a multi-stage electric push rod 13 is installed at the bottom of the adjustment mechanism 2, a sampling mechanism 3 is arranged at the pushing end of the multi-stage electric push rod 13, and positioning mechanisms 4 are symmetrically arranged on the two vertical plates 12 with the adjustment mechanism 2 as the center.

[0031] The present invention performs random sampling of liquid milk products at multiple locations through the adjustment mechanism 2 in cooperation with the sampling mechanism 3, thereby avoiding the situation where the samples are insufficiently representative due to a single sampling position and a single sampling depth, thereby ensuring the representativeness of the samples, and through the positioning mechanism 4, it can ensure that the position of the storage barrel storing the milk product is consistent during each sampling process, thereby facilitating the sampling mechanism 3 to sample the stored milk products.

[0032] Specifically, firstly, a storage barrel storing the milk product taken out from the production line is placed at the position of the positioning mechanism 4, and then the storage barrel is positioned by the positioning mechanism 4, and then the position of the sampling mechanism 3 is adjusted by the adjusting mechanism 2, and the position of the sampling mechanism 3 is fixed, and then the multi-stage electric push rod 13 is controlled to push the sampling mechanism 3 until the sampling mechanism 3 is completely immersed in the milk product, and then the sampling mechanism 3 is controlled to sample the milk product at different depths, and then the samples at different depths are stored in the beaker through the sampling mechanism 3, and after the sampling is completed, the adjusting mechanism 2 is controlled to adjust the position of the sampling mechanism 3, and the milk product is sampled again in the above steps, until the sampling is completed at each position of the adjusting mechanism 2, and then different tests are performed on the sampled samples.

[0033] See also Figure 1 and Figure 3 The positioning mechanism 4 includes a horizontal slide bar 41 slidably connected to the middle of the vertical plate 12, an arc-shaped limit plate 411 is fixed to the left end of the horizontal slide bar 41, a circular plate 412 is fixed to the right end of the horizontal slide bar 41, and a horizontal spring is connected between the circular plate 412 and the vertical plate 12. The positioning mechanism 4 is used to position the storage barrel storing the milk product, so as to facilitate the sampling mechanism 3 to sample the milk product. Specifically, the storage barrel storing the milk product taken out from the production line is first placed at the position of the positioning mechanism 4, and then the two arc-shaped limit plates 411 are pushed outward, and the storage barrel is placed on the two arc-shaped limit plates 411, and then the push on the arc-shaped limit plates 411 is released, and at this time, the arc-shaped limit plates 411 will adjust the position of the storage barrel so that the center position of the storage barrel and the adjustment mechanism 2 are consistent.

[0034] See also Figure 2 and Figure 4The adjustment mechanism 2 includes a cross-shaped frame 21 fixed to the bottom of the horizontal section of the L-shaped fixing plate 11, a cross-shaped limit groove 211 is arranged in the cross-shaped frame 21, a multi-directional slider 212 is slidably connected in the cross-shaped limit groove 211, a fixing component 22 is commonly connected between the multi-directional slider 212 and the horizontal section of the L-shaped fixing plate 11, and the multi-directional slider 212 is connected to the multi-stage electric push rod 13; the fixing component 22 includes a positioning plate 221 fixed to each side of the multi-directional slider 212, a positioning hole 222 is opened on the positioning plate 221, a positioning seat 223 is fixed to the bottom of the horizontal section of the L-shaped fixing plate 11 and at each end of the cross-shaped frame 21, and a threaded section (not shown in the figure) is arranged in the positioning seat 223.

[0035] The adjustment mechanism 2 is used to adjust the position of the sampling mechanism 3, so that the sampling mechanism 3 can be located in different areas to sample milk products, thereby improving the representativeness of the sample. Specifically, when the storage barrel is positioned, the multi-directional slider 212 is controlled to move. After the multi-directional slider 212 moves, one of the positioning seats 223 just corresponds to the position of one of the positioning holes 222. Then, the positions of the positioning seats 223 and the positioning holes 222 are fixed by fixing screws, so that the positions of the multi-directional slider 212 and the sampling mechanism 3 are fixed.

[0036] See also Figure 4 , Figure 6 and Figure 7 The sampling mechanism 3 includes a sampling block 31 fixed on the multi-stage electric push rod 13, a sampling chamber 311 is arranged on the right side of the sampling block 31, a partition member 32 is arranged inside the sampling block 31, and the partition member 32 is used to divide the sampling chamber 311 into a plurality of sampling areas, an extraction member 33 is arranged corresponding to each sampling area in the sampling block 31, a pushing member 34 for sequentially controlling the extraction member 33 is fixed at the left end of the top of the sampling block 31, an extraction port 312 is arranged on the right side of the sampling block 31 corresponding to each sampling area, and a closing member 35 for closing the extraction port 312 is fixed at the right end of the top of the sampling block 31.

[0037] The sampling mechanism 3 is used to sample the milk products taken out from the production line in the storage barrel, and the milk products at different depths are extracted and temporarily stored through the partition member 32 and the extraction member 33, so as to increase the representativeness of the sample. At the same time, the pushing member 34 is used to drive the extraction member 33 from top to bottom to extract the milk products, so that the milk products are sampled from top to bottom in sequence, thereby ensuring the accuracy of the sampling.

[0038] Specifically, after the adjusting mechanism 2 completes the position adjustment of the sampling mechanism 3, the multi-stage electric push rod 13 is controlled to drive the sampling mechanism 3 to move downward, so that the sampling block 31 moves into the milk product until the sampling block 31 is completely immersed in the milk product, and then the multi-stage electric push rod 13 stops pushing the sampling block 31, and then the closing member 35 is controlled to release the closing effect on the extraction port 312, and then the pushing member 34 is controlled to drive each extraction member 33 to extract milk products of different depths, and the milk products will flow into the sampling chamber 311 from the extraction port 312. At this time, the sampling chamber 311 divided into different sampling areas by the partition member 32 will be sequentially stored with the same amount of milk products from top to bottom. After the same amount of milk products are stored in each sampling area divided by the partition member 32, the closing member 35 is controlled to close all the extraction ports 312.

[0039] Then, the multi-stage electric push rod 13 is controlled to drive the sampling mechanism 3 to move upward and away from the milk product. At the same time, the operator takes a number of beakers corresponding to the number of extraction components 33, and waits at the position of the closing component 35 for the closing component 35 to release the sealing effect on the extraction port 312 until the milk product in the sampling chamber 311 flows into the beaker. Then, the pushing component 34 is controlled to cooperate with the extraction component 33 to fully discharge the milk product in the sampling chamber 311, thereby completing the sampling of the milk product at one position.

[0040] See also Figure 6-Figure 8 The extraction member 33 includes a piston plate 331 arranged in the sampling area of ​​the sampling chamber 311, a through rod 332 is fixed to the left side of the piston plate 331, the left end of the through rod 332 slides through the sampling block 31, a sealing rubber pad is arranged between the through rod 332 and the sampling block 31, and a push structure cooperating with the pushing member 34 is arranged at the left end of the through rod 332, and an avoidance ring groove is opened on the left side wall of the sampling chamber 311 corresponding to each through rod 332, and a compression spring 333 is connected between the left side wall of the avoidance ring groove and the piston plate 331; the push structure includes a longitudinal rod 334 fixed to the left end of the through rod 332, and a pushed trapezoidal block 335 is symmetrically fixed to the front and rear sides of the longitudinal rod 334, and the top of the pushed trapezoidal block 335 is a pushed inclined surface.

[0041] The pushing member 34 includes a vertical slide rail 341 fixed to the top left end of the sampling block 31. The left side of the vertical slide rail 341 is connected to a moving rod 342 through an electric slider. The moving rod 342 has lower extension rods 343 symmetrically fixed at the front and rear ends. The bottom of the lower extension rod 343 is provided with a pushing inclined surface that matches the pushed inclined surface.

[0042] The extraction member 33 is used to extract the milk product in the storage barrel, and the extraction is carried out from top to bottom in sequence, so that the depth of each extraction is different, thereby increasing the representativeness of the sample. Specifically, when the multi-stage electric push rod 13 drives the sampling block 31 to be completely immersed in the milk product, the sealing member 35 is controlled to release the sealing effect on the extraction port 312, and then the electric slider is controlled to drive the moving rod 342 and the lower extension rod 343 to move downward. At this time, the lower extension rod 343 will be released from the pushed trapezoidal block 335 in sequence from top to bottom, and through the receiving The cooperation between the push inclined surface and the pushing inclined surface makes each pushed trapezoidal block 335 move to the left, and at the same time, the pushed trapezoidal block 335 drives the through rod 332 and the piston plate 331 to move to the left, and the piston plate 331 will compress the air in the sampling chamber 311 and on the left side of the piston plate 331, and at the same time compress the compression spring 333, so as to extract the milk product, and the milk product will flow into the sampling chamber 311 through the extraction port 312 until the milk product fills the part of the sampling chamber 311 located on the right side of the piston plate 331.

[0043] See also Figure 4 , Figure 5 , Figure 7 and Figure 8 The partition member 32 includes a plurality of horizontal slide grooves 321 provided in the sampling block 31, each of the horizontal slide grooves 321 is slidably connected with a partition 322, all the partitions 322 divide the sampling chamber 311 into a plurality of sampling areas, a connecting plate 323 is fixed to the left ends of all the partitions 322, two mounting holes 324 are provided in the middle of the upper partition 322, a left extension plate 325 is fixed to the left side of the sampling block 31, the left extension plate 325 is located below the upper partition 322, a matching hole is provided on the left extension plate 325, and a positioning pin is connected between the matching hole and the mounting hole 324 at the corresponding position.

[0044] A lower opening 313 is provided at the right end of the bottom of the sampling block 31, and the lower opening 313 is connected to the sampling chamber 311. A closing plate 314 is provided at the bottom of the sampling block 31 and located at the position of the lower opening 313. A fixing seat 315 is fixed at the right end of the bottom of the closing plate 314. A threaded hole is provided at the bottom of the sampling block 31 and corresponding to the position of the fixing seat 315, and a positioning screw is connected between the fixing seat 315 and the threaded hole.

[0045] The partition member 32 is used to divide the sampling bin 311, so that the sampling bin 311 is divided into a plurality of identical sampling areas, thereby ensuring that the amount of sampled milk products is equal. At the same time, the partition 322 can be synchronously moved to the left through the connecting plate 323, and the closing plate 314 at the lower opening 313 is detachable, so that the sampling area in the sampling bin 311 can be quickly cleaned, thereby avoiding the occurrence of deviations in the test results after subsequent sampling due to the residual previously sampled milk products in the sampling bin 311.

[0046] Specifically, when the sampling of the milk product at one position is completed, the multi-stage electric push rod 13 is first controlled to drive the sampling mechanism 3 to move upward and away from the milk product, and then the positioning screw is unscrewed to separate the fixing seat 315 and the sampling block 31, and then the closing plate 314 is removed. After the closing plate 314 is removed, the positioning pin is first removed, and then the operator controls the connecting plate 323 to move to the left and drives the partition 322 to move to the left until the mounting hole 324 on the right side corresponds to the position of the matching hole, and then the position of the partition 322 and the connecting plate 323 is fixed again by the positioning pin, and then the extraction component 33 is controlled to move to the left as a whole, and then the operator can use a dry cleaning cloth to clean the part of the side wall used to store milk products in the sampling chamber 311 and the right end of the extraction component 33 from the lower opening 313. After the cleaning is completed, the extraction component 33 and the partition 322 are returned to their original positions, and the milk product is sampled at the subsequent position again.

[0047] See also Figure 6-Figure 8 The closing member 35 includes an L-shaped upper extension rod 351 fixed to the right end of the top of the sampling block 31, and a vertical nail 352 is slidably penetrated through the horizontal section of the L-shaped upper extension rod 351, and a square plate 353 is fixed to the bottom of the vertical nail 352. A plurality of leakage holes are evenly opened on the square plate 353, and each leakage hole is at the same distance from the corresponding extraction port 312. A through hole is opened at the right end of the horizontal section of the L-shaped upper extension rod 351, and two through holes are set in the middle of the vertical nail 352, and a horizontal pin is connected between the through hole and the through hole at the corresponding position; an avoidance groove is jointly arranged between the piston plate 331 and the through rod 332, and the left end of the avoidance groove is connected to the inner sliding rod 354 through an inner spring, and a pushing slope is opened on the square plate 353 and at the position corresponding to the leakage hole.

[0048] The closing member 35 is used to close the extraction port 312, thereby ensuring that the milk product will not penetrate into the extraction port 312 before it reaches the specified depth, thereby avoiding the representativeness of the sample after the sampling is completed. In the process of controlling the pushing member 34 to cooperate with the extraction member 33 to fully discharge the milk product in the sampling chamber 311, the inner slide rod 354 cooperates with the pushing slope so that the inner slide rod 354 can fully discharge the milk product remaining at the extraction port 312, thereby further avoiding the situation where the residual milk product affects the subsequent sample detection.

[0049] Specifically, when the multi-stage electric push rod 13 drives the sampling block 31 to be completely immersed in the milk product, the horizontal pin is pulled out first, and then the vertical pin 352 and the square plate 353 are pulled upward until the leakage hole on the square plate 353 corresponds to the position of the extraction port 312, and the milk product can be extracted through the extraction component 33; when the multi-stage electric push rod 13 is controlled to drive the sampling mechanism 3 to move upward and away from the milk product, the above steps are repeated to make the leakage hole correspond to the position of the extraction port 312, and the horizontal pin is controlled to fix the through hole and the through hole on the lower side, and then the pushing component 34 is controlled to cooperate with the extraction component 33 to discharge the milk product in the sampling chamber 311. When the piston plate 331 moves to the position of the extraction port 312, the inner slide rod 354 will discharge the residual milk product in the extraction port 312 until it is discharged through the leakage hole into the beaker placed on the outside in advance.

[0050] The working steps of the present invention are as follows: the first step is to place the storage barrel storing the milk product taken out from the production line at the position of the positioning mechanism 4, then push the two arc-shaped limit plates 411 outward, and place the storage barrel on the two arc-shaped limit plates 411, and then release the push on the arc-shaped limit plates 411. At this time, the arc-shaped limit plates 411 will adjust the position of the storage barrel so that the center position of the storage barrel and the adjustment mechanism 2 are consistent.

[0051] In the second step, when the storage barrel is positioned, the multi-directional slider 212 is controlled to move. After the multi-directional slider 212 has moved, one of the positioning seats 223 just corresponds to the position of one of the positioning holes 222. Then, the positions of the positioning seats 223 and the positioning holes 222 are fixed by fixing screws, so that the positions of the multi-directional slider 212 and the sampling mechanism 3 are fixed.

[0052] In the third step, after the adjustment mechanism 2 has completed the position adjustment of the sampling mechanism 3, the multi-stage electric push rod 13 is controlled to drive the sampling mechanism 3 to move downward, so that the sampling block 31 moves into the milk product until the sampling block 31 is completely immersed in the milk product, and then the multi-stage electric push rod 13 stops pushing the sampling block 31, and then the closing member 35 is controlled to release the closing effect on the extraction port 312, and then the pushing member 34 is controlled to drive each extraction member 33 to extract milk products of different depths, and the milk products will flow into the sampling chamber 311 from the extraction port 312. At this time, the sampling chamber 311 divided into different sampling areas by the partition member 32 will be sequentially stored with the same amount of milk products from top to bottom. After the same amount of milk products are stored in each sampling area divided by the partition member 32, the closing member 35 is controlled to close all the extraction ports 312.

[0053] Then, the multi-stage electric push rod 13 is controlled to drive the sampling mechanism 3 to move upward and away from the milk product. At the same time, the operator takes a number of beakers corresponding to the number of extraction components 33, and waits at the position of the closing component 35 for the closing component 35 to release the sealing effect on the extraction port 312 until the milk product in the sampling chamber 311 flows into the beaker. Then, the pushing component 34 is controlled to cooperate with the extraction component 33 to fully discharge the milk product in the sampling chamber 311, thereby completing the sampling of the milk product at one position.

[0054] In the fourth step, when the sampling of the milk product at one position is completed, the multi-stage electric push rod 13 is first controlled to drive the sampling mechanism 3 to move upward and away from the milk product, and then the positioning screw is unscrewed to separate the fixing seat 315 and the sampling block 31, and then the closing plate 314 is removed. After the closing plate 314 is removed, the positioning pin is first removed, and then the operator controls the connecting plate 323 to move to the left and drives the partition 322 to move to the left until the mounting hole 324 on the right side corresponds to the position of the matching hole, and then the position of the partition 322 and the connecting plate 323 is fixed again by the positioning pin, and then the extraction component 33 is controlled to move to the left as a whole, and then the operator can use a dry cleaning cloth to clean the part of the side wall used to store milk products in the sampling chamber 311 and the right end of the extraction component 33 from the lower opening 313. After the cleaning is completed, the extraction component 33 and the partition 322 are returned to their original positions.

[0055] The fifth step is to control the adjusting mechanism 2 to adjust the position of the sampling mechanism 3 after the extraction member 33 and the partition 322 return to their original positions, and sample the milk product again using the above steps until sampling is completed at each position of the adjusting mechanism 2, and then perform different tests on the sampled samples.

[0056] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention and they are still covered by the protection scope of the present invention.

Claims

1. A workbench for milk product testing, comprising a work platform (1), an L-shaped fixing plate (11) fixed on the top of the work platform (1), and vertical plates (12) symmetrically fixed on the top of the work platform (1) and located in front and behind the L-shaped fixing plate (11), characterized in that: The bottom of the horizontal section of the L-shaped fixed plate (11) is provided with an adjustment mechanism (2), the bottom of the adjustment mechanism (2) is provided with a multi-stage electric push rod (13), the pushing end of the multi-stage electric push rod (13) is provided with a sampling mechanism (3), and the two vertical plates (12) are symmetrically provided with positioning mechanisms (4) with the adjustment mechanism (2) as the center. The adjustment mechanism (2) comprises a cross-shaped frame (21) fixed at the bottom of the horizontal section of the L-shaped fixing plate (11), a cross-shaped limiting groove (211) is arranged in the cross-shaped frame (21), a multi-directional slider (212) is slidably connected in the cross-shaped limiting groove (211), a fixing member (22) is commonly connected between the multi-directional slider (212) and the horizontal section of the L-shaped fixing plate (11), and the multi-directional slider (212) is connected to a multi-stage electric push rod (13); The sampling mechanism (3) comprises a sampling block (31) fixed on the multi-stage electric push rod (13); a sampling chamber (311) is arranged on the right side of the sampling block (31); a partition member (32) is arranged inside the sampling block (31); the partition member (32) is used to divide the sampling chamber (311) into a plurality of sampling areas; an extraction member (33) is arranged in the sampling block (31) corresponding to each sampling area; a pushing member (34) is fixed at the left end of the top of the sampling block (31) for sequentially controlling the extraction member (33); an extraction port (312) is arranged on the right side of the sampling block (31) corresponding to each sampling area; a sealing member (35) is fixed at the right end of the top of the sampling block (31) for sealing the extraction port (312); the positioning mechanism (4) is used to position a container for holding a sampled target milk product.

2. A workbench for milk product testing according to claim 1, characterized in that: The fixing member (22) comprises a positioning plate (221) fixed to each side of the multi-directional sliding block (212), a positioning hole (222) being provided on the positioning plate (221), and a positioning seat (223) being fixed at the bottom of the horizontal section of the L-shaped fixing plate (11) and at each end of the cross-shaped frame (21).

3. A workbench for milk product testing according to claim 1, characterized in that: The partition member (32) comprises a plurality of horizontal slide grooves (321) provided in the sampling block (31), each of the horizontal slide grooves (321) being slidably connected with a partition plate (322), all the partition plates (322) dividing the sampling chamber (311) into a plurality of sampling areas, a connecting plate (323) being fixed to the left ends of all the partition plates (322), two mounting holes (324) being arranged in the middle of the partition plate (322) at the upper end, a left extension plate (325) being fixed to the left side of the sampling block (31), the left extension plate (325) being located below the partition plate (322) at the upper end, a matching hole being provided on the left extension plate (325), and a positioning pin being connected between the matching hole and the mounting hole (324) at the corresponding position.

4. A workbench for milk product testing according to claim 3, characterized in that: A lower opening (313) is provided at the right end of the bottom of the sampling block (31), and the lower opening (313) is communicated with the sampling chamber (311). A closing plate (314) is provided at the bottom of the sampling block (31) and located at the position of the lower opening (313). A fixing seat (315) is fixed at the right end of the bottom of the closing plate (314). A threaded hole is provided at the bottom of the sampling block (31) and at a position corresponding to the fixing seat (315). A positioning screw is connected between the fixing seat (315) and the threaded hole. The lower opening (313) cooperates with a partition plate (322) that is slidably connected, so that the sampling chamber (311) can be quickly cleaned.

5. A workbench for milk product testing according to claim 1, characterized in that: The extraction member (33) comprises a piston plate (331) arranged in the sampling area of ​​the sampling chamber (311), a through rod (332) is fixed on the left side of the piston plate (331), the left end of the through rod (332) slides through the sampling block (31), a sealing rubber pad is arranged between the through rod (332) and the sampling block (31), a pushing structure cooperating with the pushing member (34) is arranged at the left end of the through rod (332), an avoidance ring groove is opened on the left side wall of the sampling chamber (311) corresponding to each through rod (332), and a compression spring (333) is connected between the left side wall of the avoidance ring groove and the piston plate (331).

6. A workbench for milk product testing according to claim 5, characterized in that: The push structure comprises a longitudinal rod (334) fixed to the left end of the through rod (332), and push trapezoidal blocks (335) are symmetrically fixed to the front and rear sides of the longitudinal rod (334), and the top of the push trapezoidal blocks (335) is a push inclined surface.

7. A workbench for milk product testing according to claim 6, characterized in that: The pushing member (34) comprises a vertical slide rail (341) fixed to the left end of the top of the sampling block (31); a moving rod (342) is connected to the left side of the vertical slide rail (341) via an electric slider; lower extension rods (343) are symmetrically fixed to the front and rear ends of the moving rod (342); and a pushing inclined surface matching the pushed inclined surface is arranged at the bottom of the lower extension rod (343).

8. A workbench for milk product testing according to claim 5, characterized in that: The closing member (35) comprises an L-shaped upper extension rod (351) fixed at the top right end of the sampling block (31); a vertical nail (352) is slidably penetrated through the horizontal section of the L-shaped upper extension rod (351); a square plate (353) is fixed at the bottom of the vertical nail (352); a plurality of leakage holes are evenly provided on the square plate (353); each leakage hole is at the same distance from the corresponding extraction port (312); a through hole is provided at the right end of the horizontal section of the L-shaped upper extension rod (351); two through holes are provided in the middle of the vertical nail (352); a horizontal pin is connected between the through hole and the through hole at the corresponding position.

9. A workbench for milk product testing according to claim 8, characterized in that: An avoidance groove is provided between the piston plate (331) and the through rod (332), the left end of the avoidance groove is connected to an inner slide rod (354) via an inner spring, and a push slope is provided on the square plate (353) at a position corresponding to the leakage hole.

10. A workbench for milk product testing according to claim 1, characterized in that: The positioning mechanism (4) comprises a horizontal sliding rod (41) slidably connected to the middle part of the vertical plate (12), an arc-shaped limiting plate (411) is fixed to the left end of the horizontal sliding rod (41), a circular plate (412) is fixed to the right end of the horizontal sliding rod (41), and a horizontal spring is connected between the circular plate (412) and the vertical plate (12).

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