A sampling method for testing zongzi (sticky rice dumplings)

Abstract

This invention relates to a sampling method for detecting zongzi (sticky rice dumplings). The method utilizes a cooked zongzi sampling mechanism, which includes a frame. The frame houses a circular sampling sleeve, a zongzi sample ejector rod threaded into the sampling sleeve, a sampling sleeve rotation mechanism for driving the sleeve's rotation, a sampling sleeve anti-rotation mechanism for preventing the sleeve's rotation, an ejector rod rotation mechanism for driving the ejector rod's rotation, and an ejector rod anti-rotation mechanism for preventing the ejector rod's rotation. The sampling sleeve is rotatably and translatably mounted on the frame. A limiting ring is fitted around the end of the ejector rod outside the sampling sleeve, allowing the ejector rod to rotate only relative to the limiting ring. The limiting ring is fixed to the frame. Several planing blades are distributed circumferentially around the end of the sampling sleeve furthest from the limiting ring. A cutting mechanism is located at the front end of the sampling sleeve. This invention aims to achieve the advantages of labor-saving sampling and high sample accuracy, solving the problems of laborious manual insertion and ejection of the sampling tube and low sample accuracy in existing methods.

Description

Technical Field

[0001] This invention relates to the field of food testing technology, and in particular to a sampling method for testing zongzi (sticky rice dumplings). Background Technology

[0002] During the production process, a 2-centimeter-long cylindrical sample (containing the total meat and rice) needs to be taken from the cooked rice dumpling for texture testing. The existing method for preparing the sample involves manually removing the bamboo leaves, inserting a sampling tube into the rice dumpling, and then squeezing out the rice dumpling to the appropriate length to obtain the cylindrical sample. This current insertion method results in severe compression of the rice dumpling, and the adhesion between the rice dumpling and the tube wall during extraction causes significant deformation of the sample. Furthermore, manual sampling is laborious and not conducive to automated sampling. Summary of the Invention

[0003] This invention aims to provide a sampling method for detecting zongzi (sticky rice dumplings) that is labor-saving and has high sampling accuracy, solving the problems of laborious manual insertion and ejection of the sampling tube and low sampling accuracy in existing methods.

[0004] The above technical problems are solved by the following technical solution: a sampling method for detecting zongzi (sticky rice dumplings), using a cooked zongzi sampling mechanism. The cooked zongzi sampling mechanism includes a frame, on which is mounted a circular sampling sleeve, a zongzi sample ejection rod threaded into the sampling sleeve, a sampling sleeve rotation mechanism for driving the sampling sleeve to rotate, a sampling sleeve anti-rotation mechanism for preventing the sampling sleeve from rotating, an ejection rod rotation mechanism for driving the zongzi sample ejection rod to rotate, and an ejection rod anti-rotation mechanism for preventing the zongzi sample ejection rod from rotating. The sampling sleeve is rotatably and translatably mounted on the frame. The sampling sleeve has a limiting ring fitted at one end of the sampling rod located outside the sampling sleeve. The sampling rod can only rotate relative to the limiting ring, which is fixed to the frame. The sampling sleeve has several planing blades distributed circumferentially on its end face away from the limiting ring. A cutting mechanism is provided at the front end of the sampling sleeve. The sampling process involves sampling rice dumplings as follows: initially, the distance between the end of the sampling rod facing the planing blades and the end face of the sampling sleeve containing the planing blades is less than 2 mm and the rod is contained within the sampling sleeve. The sample is then wrapped with rice dumplings... The cooked rice dumpling sample is aligned with the peeler. A sampling sleeve rotation mechanism drives the sampling sleeve to rotate, while a push-out rod anti-rotation mechanism prevents the sample dumpling push-out rod from rotating. This causes the sampling sleeve to rotate and move towards the sample dumpling, inserting itself into the dumpling. When the sampling sleeve reaches a set depth inside the sample dumpling, the rotation mechanism stops. A cutting mechanism separates the portion of the sample dumpling inside the sampling sleeve from the portion outside. The portion of the rice dumpling inside the sampling sleeve is the rice dumpling sample. The sample dumpling is then moved axially along the sampling sleeve to... The portion of the rice dumpling outside the sampling sleeve is removed from the sleeve. The ejector rod rotation mechanism drives the sample ejector rod to rotate, while the sampling sleeve anti-rotation mechanism prevents the sleeve from rotating. The rotation of the ejector rod causes the sampling sleeve to move towards the direction of the limiting ring, increasing the depth to which the ejector rod is inserted into the sampling sleeve. The ejector rod pushes the rice dumpling sample outwards from the sampling sleeve through the remaining portion of the rice dumpling leaf. When the entire sample is ejected from the sampling sleeve, the ejector rod rotation mechanism stops, thus completing the sampling. This method is labor-saving and yields highly accurate samples.

[0005] Preferably, the sampling sleeve has a blade mounting ring at one end with the planer blade. The blade mounting ring is coaxial with the sampling sleeve. The planer blade is positioned on the end face of the blade mounting ring away from the sampling sleeve. The outer diameter of the blade mounting ring is larger than the outer diameter of the sampling sleeve, and the inner diameter of the blade mounting ring is smaller than the inner diameter of the sampling sleeve. The two ends of the planer blade along the radial direction of the blade mounting ring are flush with the inner and outer circumferential surfaces of the blade mounting ring. This design ensures that the process of the sampling sleeve entering and exiting the annular groove planed by the planer blade results in low adhesion length of the portion of the sample located outside the sampling sleeve and low adhesion length between the sample and the sampling sleeve. The blade mounting ring has several driving pins on its end face away from the planer. The blade mounting ring is a ferromagnetic structure. The end face of the sampling sleeve connected to the blade mounting ring has a magnet and several pin holes. The driving pins are inserted into the pin holes one by one. The magnet attracts the blade mounting ring and fixes the blade mounting ring and the sampling sleeve together. When taking out the rice dumpling sample, the blade mounting ring is removed first, and then the rice dumpling sample is pushed out by the rice dumpling sample ejection rod. This can minimize the adhesion between the rice dumpling sample and the part of the sample dumpling outside the sampling sleeve and the sampling sleeve, while avoiding interference from the closing of the blade mounting ring in the removal of the rice dumpling sample and causing deformation of the rice dumpling sample.

[0006] Preferably, the end face of the blade mounting ring away from the sampling sleeve is provided with several cutting blades. One end of each cutting blade is connected to a planer blade, which extends beyond the cutting blades along the axial direction of the sampling tube. The cutting blades connected to the planer blade are positioned in front of the planer blade in the direction of rotation when the planer blade rotates and the rice dumpling is being cut. The cutting edge of the cutting blade is located at the end away from the planer blade. The end face of the cutting blade facing the center of the blade mounting ring is on the same circumferential surface as the inner circumferential surface of the blade mounting ring. The radial dimension of the cutting blade gradually increases from the end away from the planer blade to the other end. This ensures good flatness of the circumference of the produced rice dumpling, thereby better reducing adhesion between the rice dumpling and the sampling sleeve.

[0007] Preferably, the end face of the blade mounting ring away from the sampling sleeve is provided with several chip-exiting blades. The ends of these blades facing the center of the blade mounting ring are connected to the planer blades to form a "V"-shaped chip removal groove. The planer blades extend axially beyond the chip-exiting blades along the sampling tube. The chip-exiting blades and the cutting blades connected to the same planer blade are distributed circumferentially on both sides of the planer blade. The side of the chip-exiting blade located on the chip removal groove side is an inclined surface with the end away from the blade mounting ring facing away from the chip removal groove. The radially outer end of the blade mounting ring is provided with several chip removal openings aligned with the chip removal grooves. This allows the chipping generated during the sampling process within the sampling sleeve to be smoothly discharged from the outside of the sampling sleeve.

[0008] Preferably, the sampling sleeve rotation mechanism includes a sampling sleeve external gear ring disposed on the sampling sleeve, a sampling sleeve drive gear meshing with the sampling sleeve external gear ring, and a sampling sleeve drive motor for driving the sampling sleeve drive gear to rotate. The sampling sleeve drive motor is fixed together with the frame, and the sampling sleeve anti-rotation mechanism is a sampling sleeve drive motor brake disposed on the sampling sleeve drive motor to keep the sampling sleeve drive motor in a stopped state.

[0009] Preferably, the ejector rod rotation mechanism includes an external gear ring for the ejector rod portion disposed on the ejector rod of the zongzi-shaped ejector rod, an ejector rod drive gear meshing with the external gear ring for the ejector rod portion, and an ejector rod drive motor for driving the ejector rod drive gear to rotate. The ejector rod drive motor is fixed together with the frame. The ejector rod anti-rotation mechanism is a brake on the ejector rod drive motor portion disposed on the ejector rod drive motor to keep the ejector rod drive motor in a stopped state.

[0010] This invention also includes a plate-flipping cylinder and a sample holder plate hinged to the frame via a plate-connecting shaft. The plate-connecting shaft is perpendicular to the axis of the sampling sleeve. The sample holder plate is located on the side of the sampling sleeve away from the limiting ring. A stop bar is provided on the upper surface of the sample holder plate near the sampling sleeve. The plate-connecting shaft is located at the end of the sample holder plate near the sampling sleeve. The piston rod of the plate-flipping cylinder is hinged to the sample holder plate via a piston rod hinge shaft. The cylinder body of the plate-flipping cylinder is hinged to the frame via a cylinder body hinge shaft. The plate-connecting shaft is located between the piston rod hinge shaft and the sampling sleeve. The stop bar and the plate-connecting shaft are also present. The piston rod hinge shaft and the cylinder hinge shaft are parallel to each other. In use, the triangular sample rice dumpling is placed on the sample rice dumpling support plate with one side flat. One edge of the sample rice dumpling is parallel to and abuts against the stop bar. The sample rice dumpling is located on the side of the stop bar away from the support plate connecting shaft. The support plate tilting cylinder drives the sample rice dumpling support plate to rotate around the support plate connecting shaft, causing the sample rice dumpling to move towards the sampling sleeve. When the sample rice dumpling rotates to the point where the side facing the sampling sleeve is parallel to the sampling sleeve, the support plate tilting cylinder maintains the current extension length, and then the rice dumpling sampling process is performed. This makes sampling more mechanized.

[0011] Preferably, the frame includes a cylinder connecting seat, a tray connecting seat, a proximity holding mechanism, several first sliding holes, and several second sliding holes. The cylinder connecting seat has several cylinder connecting seat portion connecting slide rods, each correspondingly inserted into one of the first sliding holes. The cylinder body hinge shaft is mounted on the cylinder connecting seat. The tray connecting seat has several tray connecting seat portion connecting slide rods, each correspondingly inserted into one of the second sliding holes. The tray connecting shaft is mounted on the tray connecting seat. The axes of the tray connecting seat portion connecting slide rods, the cylinder connecting seat portion connecting slide rods, and the sampling sleeve are parallel. The proximity holding mechanism is used to position the tray connecting seat holding portion connecting slide rod at its limit position when inserted into the second sliding hole. This prevents displacement during sampling rod insertion, thus ensuring accurate control of the sampling sleeve's insertion depth into the rice dumpling.

[0012] Preferably, the near-position holding mechanism includes a three-way valve, a cylinder body disposed within a second sliding hole, and a piston slidably and sealingly connected to the cylinder body. The piston is connected to a connecting rod of the support plate connecting seat located within the cylinder body. The piston isolates a sealed cavity within the cylinder body. The second sliding hole of the cylinder body is a through hole. The sealed cavity has an inlet and outlet. The three-way valve includes a valve body with a first outlet, a second outlet, and an inlet. The inlet is connected to the inlet and outlet. The first outlet is in an unoccupied state, and the second outlet is connected to a gas source. Before the sampling sleeve moves toward the sample pod for sampling, the... The inlet is connected to the second outlet. The gas source inputs gas into the sealed cavity to drive the piston to move to the end position, so that the connecting rod of the support plate is located and held in the position of being inserted into the second sliding hole to the limit position. The process of removing the part of the sample tube outside the sampling sleeve from the sampling sleeve is as follows: the inlet is connected to the first outlet to depressurize the sealed cavity, so that the piston can move towards the direction of the sample tube support plate, and the sample tube is moved along the axis of the sampling sleeve to remove the part of the sample tube outside the sampling sleeve. During the process of moving the part of the sample tube outside the sampling sleeve, the connecting rod of the support plate is pulled out from the second sliding hole, and the connecting rod of the cylinder is pulled out from the first sliding hole.

[0013] Preferably, the cutting mechanism includes a cutting line mounting groove extending circumferentially along the blade mounting ring on the inner circumferential surface of the blade mounting ring, an annular cutting line extending circumferentially along the blade mounting ring within the cutting line mounting groove, and a cable connected to the annular cutting line. The cable passes through a cable through-hole in the wall of the sampling sleeve, with the end of the cable exiting the sampling sleeve away from the blade mounting ring. The cable through-hole passes through the cutting line mounting groove. The process of the cutting mechanism separating the portion of the sample rice dumpling inside the sampling sleeve from the portion outside the sampling sleeve is as follows: pulling the portion of the cable outside the sampling sleeve causes the annular cutting line to move towards the cable through-hole, cutting the rice dumpling sample during the movement of the annular cutting line towards the cable through-hole. This facilitates the removal of the rice dumpling sample by interruption.

[0014] Preferably, the cutting line mounting groove has an inner stop bar located at the end where the cable connects to the annular cutting line. The inner stop bar passes through the annular cutting line. The cable is annular, and the annular cutting line and cable are interlocked and connected together. The sampling sleeve has an outer stop bar passing through the cable at the end furthest from the blade mounting ring. The inner stop bar prevents the entire annular cutting line from entering the cable through-hole during the process of pulling it in, making it easier to install the annular cutting line by extending it circumferentially along the cutting line mounting groove. The outer stop bar prevents the outer end of the cable from retracting into the cable through-hole, improving ease of use.

[0015] The invention has the following beneficial effects: the rotating method cuts out the annular groove and pushes it into the sampler, resulting in less compression of the sample during sampling, higher sample accuracy, and easier automation of the sampling process; the diameter of the obtained sample is smaller than the inner diameter of the sampling tube, resulting in less adhesion when the sample is removed, which improves the accuracy of the sample; sampling is performed without opening the sample, resulting in high accuracy of the removed sample, and the sample does not stick to the sample ejector rod. It can perform sampling perpendicular to the side of the zongzi, resulting in good perpendicularity of the end face of the produced sample to the circumference, and the sample can be formed in one go without the need for end face trimming. Attached Figure Description

[0016] Figure 1 This is a frontal view of the initial state of the cooked rice dumpling sampling mechanism, with the sample rice dumpling placed on the sample rice dumpling support plate;

[0017] Figure 2 for Figure 1 A magnified view of a portion of point A;

[0018] Figure 3 for Figure 2 A magnified view of a portion of point B;

[0019] Figure 4 for Figure 1A magnified view of a portion at point C;

[0020] Figure 5 This is a right-side view of the sampling sleeve;

[0021] Figure 6 for Figure 1 A magnified view of a portion at point D;

[0022] Figure 7 This is a schematic diagram showing the sample rice dumpling being flipped over so that one side is perpendicular to the sampling sleeve when the sample rice dumpling is supported by the sample holding plate.

[0023] In the diagram: 1. Frame; 2. Sampling sleeve; 3. Sample ejector rod; 4. Limiting ring; 5. Limiting ring connecting frame; 6. Sampling sleeve rotating mechanism; 7. Sampling sleeve external gear ring; 8. Sampling sleeve drive gear; 9. Sampling sleeve drive motor; 10. Upper motor connecting frame; 11. Ejector rod rotating mechanism; 12. Ejector rod external gear ring; 13. Ejector rod drive gear; 14. Ejector rod drive motor; 15. Lower motor connecting frame; 16. Blade mounting ring; 17. Planer blade; 18. Cutting blade; 19. Cutting blade edge; 20. Chip guide plate; 21. Chip removal groove; 22. Side of chip guide plate located on one side of chip removal groove; 23. Chip outlet; 24. Sample tube; 25. Support plate tilting cylinder; 26. Support plate connecting shaft; Support plate 27, stop bar 28, piston rod of support plate tilting cylinder 29, piston rod hinge shaft 30, cylinder body of support plate tilting cylinder 31, cylinder body hinge shaft 32, cylinder connecting seat 33, support plate connecting seat 34, first sliding hole 35, second sliding hole 36, cylinder connecting seat connecting slide rod 37, support plate connecting seat connecting slide rod 38, three-way valve 39, cylinder body 40, piston 41, sealing cavity 42, air inlet and outlet 43, first outlet 44, second outlet 45, inlet 46, cutting line mounting groove 47, annular cutting line 48, cable 49, cable through hole 50, inner barrier bar 51, outer barrier bar 52, side of sample facing the sampling sleeve 53. Detailed Implementation

[0024] 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.

[0025] See Figures 1 to 7A sampling method for detecting zongzi (sticky rice dumplings) is disclosed, which uses a cooked zongzi sampling mechanism for testing. The cooked zongzi sampling mechanism includes a frame 1, a circular sampling sleeve 2, a zongzi sample ejection rod 3 threadedly connected inside the sampling sleeve, a sampling sleeve rotation mechanism for driving the sampling sleeve's rotation, a sampling sleeve anti-rotation mechanism for preventing the sampling sleeve's rotation, an ejection rod rotation mechanism for driving the zongzi sample ejection rod's rotation, and an ejection rod anti-rotation mechanism for preventing the zongzi sample ejection rod's rotation. The sampling sleeve is rotatably and translatably mounted on the frame. A limiting ring 4 is fitted onto one end of the zongzi sample ejection rod outside the sampling sleeve, allowing the zongzi sample ejection rod to rotate only relative to the limiting ring. The limiting ring is fixed to the frame via a limiting ring connecting bracket 5. The sampling sleeve rotation mechanism 6 includes a sampling sleeve external gear ring 7 mounted on the sampling sleeve, a sampling sleeve drive gear 8 meshing with the sampling sleeve external gear ring, and a sampling sleeve drive motor 9 driving the sampling sleeve drive gear. The sampling sleeve drive motor is fixed to the frame via an upper motor connecting bracket 10. The sampling sleeve anti-rotation mechanism is a sampling sleeve drive motor brake mounted on the sampling sleeve drive motor to keep the sampling sleeve drive motor in a stopped state. The ejector rod rotation mechanism 11 includes an ejector rod external gear ring 12 mounted on the ejector rod, an ejector rod drive gear 13 meshing with the ejector rod external gear ring, and an ejector rod drive motor 14 driving the ejector rod drive gear. The ejector rod drive motor is fixed to the frame via a lower motor connecting bracket 15. The ejector rod anti-rotation mechanism is an ejector rod drive motor brake mounted on the ejector rod drive motor to keep the ejector rod drive motor in a stopped state.

[0026] A blade mounting ring 16 is provided on the end face of the sampling sleeve away from the limiting ring, and on the end of the sampling sleeve with the planer blade. The blade mounting ring is coaxial with the sampling sleeve, and a plurality of planer blades 17 are provided on the end face of the blade mounting ring away from the sampling sleeve. The outer diameter of the blade mounting ring is larger than the outer diameter of the sampling sleeve, and the inner diameter of the blade mounting ring is smaller than the inner diameter of the sampling sleeve. The two ends of the planer blades along the radial direction of the blade mounting ring are flush with the inner and outer circumferential surfaces of the blade mounting ring. A plurality of cutting blades 18 are provided on the end face of the blade mounting ring away from the sampling sleeve, and one end of each cutting blade is connected to the planer blade. The planer blade extends beyond the cutting blade along the axial direction of the sampling tube. The cutting blade and the planer blade are connected to the planer blade. The cutting blade is located in front of the planer blade in the direction of rotation when the planer blade rotates and planes the rice dumpling. The cutting edge 19 of the cutting blade is located at the end away from the planer blade. The end face of the cutting blade facing the center of the blade mounting ring is on the same circumferential surface as the inner circumferential surface of the blade mounting ring. The radial dimension of the cutting blade gradually increases from the end away from the planer blade to the other end. The blade mounting ring has several chip guide plates 20 on its end face away from the sampling sleeve. The ends of the chip guide plates facing the center of the blade mounting ring are connected to the planer blades to form "V"-shaped chip removal grooves 21. The planer blades extend axially beyond the chip guide plates along the sampling tube. The chip guide plates and cutting blades connected to the same planer blade are distributed circumferentially on both sides of the planer blade. The side 22 of the chip guide plate on the chip removal groove side is an inclined surface with the end away from the blade mounting ring facing away from the chip removal groove. The radially outer end of the blade mounting ring has several chip removal openings 23 aligned with the chip removal grooves. During the sampling process within the sampling tube 24, the chip residue generated is discharged from the chip removal openings into the gap between the sampling tubes.

[0027] The cooked rice dumpling sampling mechanism also includes a support plate flipping cylinder 25 and a sample rice dumpling support plate 27 hinged to the frame via a support plate connecting shaft 26. The support plate connecting shaft is perpendicular to the axis of the sampling sleeve, and in this embodiment, the sampling sleeve is horizontally arranged. The sample rice dumpling support plate is located on the side of the sampling sleeve away from the limiting ring. A baffle 28 is provided on the upper surface of the end of the sample rice dumpling support plate near the sampling sleeve. The support plate connecting shaft is located at the end of the sample rice dumpling support plate near the sampling sleeve. The piston rod 29 of the support plate flipping cylinder is hinged to the rice dumpling support plate via a piston rod hinge shaft 30. The cylinder body 31 of the support plate flipping cylinder is hinged to the frame via a cylinder body hinge shaft 32. The support plate connecting shaft is located between the piston rod hinge shaft and the sampling sleeve. The baffle, the support plate connecting shaft, the piston rod hinge shaft, and the cylinder body hinge shaft are parallel to each other. Furthermore: the frame is equipped with a cylinder connecting seat 33, a tray connecting seat 34, a near-position holding mechanism, a plurality of first sliding holes 35, and a plurality of second sliding holes 36; the cylinder connecting seat is equipped with a plurality of cylinder connecting seat part connecting slide rods 37, which are correspondingly inserted into the first sliding holes, and the cylinder body hinge shaft is set on the cylinder connecting seat; the tray connecting seat is equipped with a plurality of tray connecting seat part connecting slide rods 38, which are correspondingly inserted into the second sliding holes, and the tray connecting shaft is set on the tray connecting seat. The axes of the tray connecting seat part connecting slide rods, the cylinder connecting seat part connecting slide rods, and the sampling sleeve are parallel; the near-position holding mechanism is used to keep the tray connecting seat holding part connecting slide rods in the limit position when inserted into the second sliding hole. The near-position holding mechanism includes a three-way valve 39, a cylinder 40 disposed in a second sliding hole, and a piston 41 slidably sealed and connected to the cylinder. The piston is connected to a sliding rod of a support plate connecting seat located in the cylinder. The piston isolates a sealing cavity 42 in the cylinder. The second sliding hole of the cylinder is a through hole. The sealing cavity has an inlet and outlet port 43. The three-way valve has a first outlet 44, a second outlet 45, and an inlet 46. The inlet is connected to the inlet and outlet port. The first outlet is in an unused state. The second outlet is connected to an air source. The front end of the sampling sleeve is provided with a cutting mechanism. The cutting mechanism includes a cutting line mounting groove 47 extending circumferentially along the blade mounting ring on the inner circumferential surface of the blade mounting ring, an annular cutting line 48 extending circumferentially along the blade mounting ring within the cutting line mounting groove, and a cable 49 connected to the annular cutting line. The cable passes through a cable through hole 50 in the wall of the sampling sleeve. The end of the cable passes through the sampling sleeve away from the blade mounting ring, and the cable through hole passes through the cutting line mounting groove. An inner stop bar 51 is provided inside the end of the cable that connects to the annular cutting line. The inner stop bar passes through the annular cutting line. The cable is annular, and the annular cutting line and the cable are interlocked and connected together. An outer stop bar 52 is provided outside the sampling sleeve at the end away from the blade mounting ring, passing through the cable. In the initial state, the distance between the end of the sample ejector rod facing the planer and the end face of the sampling sleeve where the planer is located is less than 2 mm, and it is contained within the sampling sleeve.

[0028] The sampling process of zongzi using the cooked zongzi sampling mechanism is as follows: The inlet is connected to the second outlet. The gas source inputs gas into the sealed cavity to drive the piston to move to the end position, so that the sliding rod of the tray connecting seat is located and maintained at the extreme position of the second sliding hole. The sample zongzi is triangular. The sample zongzi is placed on the sample zongzi holding plate with one side flat. One edge of the sample zongzi is parallel to the baffle and abuts against the baffle. The sample zongzi is located on the side of the baffle away from the tray connecting shaft. The tray holding plate is driven by the tray flipping cylinder to rotate the tray holding plate around the tray connecting shaft, so that the sample zongzi moves towards the sampling sleeve. When the sample zongzi rotates to the point where the side 53 of the sample zongzi facing the sampling sleeve is perpendicular to the sampling sleeve (i.e., Figure 7 When the sample sleeve is in the "state" (as described in the original text), the holding plate flipping cylinder maintains the current extension length. Simultaneously, the sampling sleeve rotation mechanism drives the sampling sleeve to rotate while the ejector rod anti-rotation mechanism prevents the ejector rod from rotating, causing the sampling sleeve to rotate and move towards the sample pod, inserting into it. The sampling sleeve rotation mechanism stops when the depth of the sampling sleeve inside the sample pod reaches a set value.

[0029] The cutting mechanism separates the portion of the rice dumpling inside the sampling sleeve from the portion outside the sleeve. The portion of the rice dumpling inside the sampling sleeve is the rice dumpling sample. The process of the cutting mechanism separating the portion of the rice dumpling inside the sampling sleeve from the portion outside the sampling sleeve is as follows: the portion of the cable outside the sampling sleeve moves the annular cutting line toward the cable through hole until it can no longer move. The annular cutting line is blocked by the inner stop bar and cannot move further. During the process of the annular cutting line moving toward the cable through hole, the rice dumpling sample is cut off from the rice dumpling.

[0030] The sample tube is moved axially along the sampling sleeve to remove the part of the sample tube outside the sampling sleeve. The specific process is as follows: the inlet is connected to the first outlet to depressurize the sealing cavity, so that the piston can move toward the direction of the sample tube support plate. The sample tube is moved axially along the sampling sleeve to remove the part of the sample tube outside the sampling sleeve. During the process of moving the part of the sample tube outside the sampling sleeve, the slide rod of the support plate connecting seat is pulled out from the second slide hole, and the slide rod of the cylinder connecting seat is pulled out from the first slide hole.

[0031] The ejector rod is driven to rotate by the ejector rod rotation mechanism, while the sampling sleeve is prevented from rotating by the sampling sleeve anti-rotation mechanism. The result of the ejector rod rotating is that the sampling sleeve moves toward the direction of the limiting ring, thereby increasing the depth of the ejector rod inserted into the sampling sleeve. The ejector rod pushes the sample toward the outside of the sampling sleeve through the part of the zongzi leaf remaining on the sample. When the sample is completely ejected from the sampling sleeve, the ejector rod rotation mechanism stops, thus completing the sampling of the zongzi.

[0032] To further improve the accuracy of the rice dumpling sample, in another embodiment, the following changes were made: the end face of the blade mounting ring away from the planer is provided with several driving pins, the blade mounting ring is a ferromagnetic structure, the end face of the sampling sleeve connected to the blade mounting ring is provided with a magnet and several pin holes, the driving pins are correspondingly inserted into the pin holes, the magnet attracts the blade mounting ring and fixes the blade mounting ring and the sampling sleeve together; when taking out the rice dumpling sample, the blade mounting ring is removed first and then the rice dumpling sample is pushed out by the rice dumpling sample ejection rod.

Claims

1. A sampling method for detecting zongzi (sticky rice dumplings), characterized in that, The sampling is performed using a cooked rice dumpling sampling mechanism, which includes a frame. The frame has a circular sampling sleeve, a rice dumpling ejector rod threaded into the sampling sleeve, a sampling sleeve rotation mechanism for driving the sampling sleeve's rotation, a sampling sleeve anti-rotation mechanism for preventing the sampling sleeve's rotation, an ejector rod rotation mechanism for driving the rice dumpling ejector rod's rotation, and an ejector rod anti-rotation mechanism for preventing the rice dumpling ejector rod's rotation. The sampling sleeve is rotatably and translatably mounted on the frame. A limiting ring is fitted around one end of the rice dumpling ejector rod outside the sampling sleeve, allowing the ejector rod to rotate only relative to the limiting ring. The limiting ring is fixed to the frame. The sampling sleeve is located away from the limiting ring. Several planers are arranged circumferentially along the end face of the sampling sleeve, and a cutting mechanism is provided at the front end of the sampling sleeve. The sampling process for zongzi (sticky rice dumplings) is as follows: In the initial state, the distance between the end of the zongzi sample ejector rod facing the planers and the end face of the sampling sleeve containing the planers is less than 2 mm, and the sample is contained within the sampling sleeve. The cooked zongzi sample wrapped in bamboo leaves is aligned with the planers. The sampling sleeve is rotated by the sampling sleeve rotation mechanism, while the ejector rod anti-rotation mechanism prevents the ejector rod from rotating. This causes the sampling sleeve to rotate and move towards the zongzi sample, inserting into it. When the sampling sleeve reaches a set depth within the zongzi sample, the sampling sleeve rotation mechanism stops. The cutting mechanism separates the portion of the rice dumpling inside the sampling sleeve from the portion outside. The part of the rice dumpling inside the sampling sleeve is the rice dumpling sample. Moving the rice dumpling axially along the sampling sleeve removes the portion outside the sleeve. A rotating ejector mechanism drives the ejector rod to rotate, while a locking mechanism prevents the sampling sleeve from rotating. The rotation of the ejector rod causes the sampling sleeve to move towards the direction of the limiting ring, increasing the depth to which the ejector rod is inserted. The ejector rod pushes the rice dumpling sample outwards through the remaining portion of the rice dumpling leaf. When the rice dumpling sample is completely removed from the sampling sleeve... When the sample is ejected, the ejector rod rotation mechanism stops, thus completing the sampling of the zongzi (rice dumpling) sample. A blade mounting ring is welded to one end of the sampling sleeve equipped with a planer. The blade mounting ring is coaxial with the sampling sleeve. The planer is positioned on the end face of the blade mounting ring furthest from the sampling sleeve. The outer diameter of the blade mounting ring is larger than the outer diameter of the sampling sleeve, and the inner diameter of the blade mounting ring is smaller than the inner diameter of the sampling sleeve. The two ends of the planer along the blade mounting ring are flush with the inner and outer circumferential surfaces of the blade mounting ring. This ensures that during the process of the sampling sleeve entering and exiting the annular groove planed by the planer, the adhesion length between the zongzi sample and the portion located outside the sampling sleeve is low, and the adhesion length between the zongzi sample and the sampling sleeve is low.

2. The sampling method for detecting zongzi (sticky rice dumplings) according to claim 1, characterized in that, The blade mounting ring has several cutting blades on its end face away from the sampling sleeve. One end of each cutting blade is connected to a planer blade. The planer blade extends beyond the cutting blade along the axial direction of the sampling tube. The cutting blade is located in front of the planer blade in the direction of rotation when the planer blade rotates and planes the rice dumpling. The cutting edge of the cutting blade is located at the end away from the planer blade. The end face of the cutting blade facing the center of the blade mounting ring is on the same circumferential surface as the inner circumferential surface of the blade mounting ring. The radial dimension of the cutting blade along the blade mounting ring gradually increases from the end away from the planer blade to the other end.

3. The sampling method for detecting zongzi (sticky rice dumplings) according to claim 2, characterized in that, The blade mounting ring has several chip guide plates on its end face away from the sampling sleeve. The chip guide plates are connected to the planer blades one by one at the end facing the center of the blade mounting ring and are lower than the planer blades. The chip guide plates and cutting plates connected to the same planer blade are distributed on both sides of the planer blade along the circumference of the sampling sleeve. A "V" shaped chip removal groove is formed between the chip guide plates and the planer blade. The side of the chip guide plate located on the chip removal groove is a sloped surface with a defect away from the blade mounting ring and away from the chip removal groove. The radial outer end of the blade mounting ring has a chip removal port that is aligned one-to-one with the chip removal groove.

4. A sampling method for detecting zongzi (sticky rice dumplings) according to claim 1, 2, or 3, characterized in that, The sampling sleeve rotation mechanism includes a sampling sleeve external gear ring disposed on the sampling sleeve, a sampling sleeve drive gear meshing with the sampling sleeve external gear ring, and a sampling sleeve drive motor driving the sampling sleeve drive gear to rotate. The sampling sleeve drive motor is fixed to the frame. The sampling sleeve anti-rotation mechanism is a sampling sleeve drive motor brake disposed on the sampling sleeve drive motor to keep the sampling sleeve drive motor in a stopped state. The ejector rod rotation mechanism includes an ejector rod external gear ring disposed on the ejector rod, an ejector rod drive gear meshing with the ejector rod external gear ring, and an ejector rod drive motor driving the ejector rod drive gear to rotate. The ejector rod drive motor is fixed to the frame. The ejector rod anti-rotation mechanism is an ejector rod drive motor brake disposed on the ejector rod drive motor to keep the ejector rod drive motor in a stopped state.

5. A sampling method for detecting zongzi (sticky rice dumplings) according to claim 1, 2, or 3, characterized in that, It also includes a plate-tilting cylinder and a sample holder plate hinged to the frame via a plate-connecting shaft. The plate-connecting shaft is perpendicular to the sampling tube. The sample holder plate is located on the side of the sampling sleeve away from the limiting ring. A stop bar is provided on the upper surface of the sample holder plate near the sampling sleeve. The plate-connecting shaft is located at the end of the sample holder plate near the sampling sleeve. The piston rod of the plate-tilting cylinder is also hinged to the sample holder plate via a piston rod hinge shaft. The cylinder body of the plate-tilting cylinder is hinged to the frame via a cylinder body hinge shaft. The plate-connecting shaft is located between the piston rod hinge shaft and the sampling sleeve. The bar, the support plate connecting shaft, the piston rod hinge shaft, and the cylinder body hinge shaft are parallel to each other. In use, a triangular sample rice dumpling is placed on the sample rice dumpling support plate, with one edge of the sample rice dumpling parallel to and abutting against the support bar. The sample rice dumpling is located on the side of the support bar away from the support plate connecting shaft. The support plate flipping cylinder drives the sample rice dumpling support plate to rotate around the support plate connecting shaft, causing the sample rice dumpling to move towards the sampling sleeve. When the sample rice dumpling rotates to the point where the side of the sample rice dumpling facing the sampling sleeve is parallel to the sampling sleeve, the support plate flipping cylinder maintains the current output length, and then the rice dumpling sampling process is carried out.

6. The sampling method for detecting zongzi (sticky rice dumplings) according to claim 5, characterized in that, The frame is provided with a cylinder connecting seat, a tray connecting seat, a proximity holding mechanism, a plurality of first sliding holes, and a plurality of second sliding holes; the cylinder connecting seat is provided with a plurality of cylinder connecting seat part connecting slide rods, which are correspondingly inserted into the first sliding holes, and the cylinder body hinge shaft is provided on the cylinder connecting seat; the tray connecting seat is provided with a plurality of tray connecting seat part connecting slide rods, which are correspondingly inserted into the second sliding holes, and the tray connecting shaft is provided on the tray connecting seat; the axes of the tray connecting seat part connecting slide rods, the cylinder connecting seat part connecting slide rods, and the sampling sleeve are parallel; the proximity holding mechanism is used to keep the sample holder plate in the position closest to the sampling sleeve.

7. The sampling method for detecting zongzi (sticky rice dumplings) according to claim 6, characterized in that, The near-position holding mechanism includes a three-way valve, a cylinder body disposed within a second sliding hole, and a piston slidably and sealingly connected to the cylinder body. The piston is connected to a connecting rod of the support plate connecting seat located within the cylinder body. The piston isolates a sealing cavity within the cylinder body, and the sealing cavity has an inlet and outlet. The three-way valve includes a valve body with a first outlet, a second outlet, and an inlet. The inlet is connected to the inlet and outlet. The first outlet is in an unoccupied state, and the second outlet is connected to a gas source. The sampling sleeve... Before moving towards the sample zongzi for sampling, the inlet is connected to the second outlet. The gas source inputs gas into the sealed cavity to drive the piston to move to the end position, so that the zongzi support plate is kept in the position closest to the sampling sleeve. The process of removing the sample zongzi from the sampling sleeve is as follows: the inlet is connected to the first outlet so that the piston can move towards the direction of the sealed cavity. Then, the sample zongzi is moved along the axial direction of the sampling sleeve to remove it from the sampling sleeve. During the process of moving the sample zongzi, the slide rod of the support plate connecting seat is pulled out from the second slide hole, and the slide rod of the cylinder connecting seat is pulled out from the first slide hole.

8. A sampling method for detecting zongzi (sticky rice dumplings) according to claim 2 or 3, characterized in that, The cutting mechanism includes a cutting line mounting groove extending circumferentially along the blade mounting ring on the inner circumferential surface of the blade mounting ring, an annular cutting line extending circumferentially along the blade mounting ring within the cutting line mounting groove, and a cable connected to the annular cutting line. The cable passes through a cable through hole in the wall of the sampling sleeve, and the end of the cable exits the sampling sleeve away from the blade mounting ring. The cable through hole passes through the cutting line mounting groove. The process by which the cutting mechanism separates the cooked rice dumpling inside the sampling sleeve from the cooked rice dumpling outside the sampling sleeve is as follows: the portion of the cable outside the sampling sleeve is pulled, causing the annular cutting line to move toward the cable through hole, and the rice dumpling is cut during the movement of the annular cutting line toward the cable through hole.

9. The sampling method for detecting zongzi (sticky rice dumplings) according to claim 8, characterized in that, The cutting line mounting groove is provided with an inner barrier bar at the end where the cable connects to the annular cutting line. The inner barrier bar passes through the annular cutting line. The cable is annular, and the annular cutting line and the cable are interlocked and connected together. The sampling sleeve is provided with an outer barrier bar passing through the cable at the end away from the blade mounting ring.

Images