Intelligent production line for small package modified atmosphere agents for traditional Chinese medicinal materials and finished products

Abstract

The application relates to the technical field of packaging of gas adjusting agents, and specifically discloses an intelligent production line for packaging small-package gas adjusting agents for traditional Chinese medicinal materials and finished grain products, which comprises a conveying device for conveying the small-package gas adjusting agents, a bagging device for loading the small-package gas adjusting agents into outer packaging bags, a packaging device for vacuumizing and packaging the outer packaging bags loaded with the small-package gas adjusting agents, and a bag moving device; the bagging device comprises a bag clamping mechanism, a bagging conveying mechanism and a feeder; the bagging conveying mechanism can convey the outer packaging bags clamped by the bag clamping mechanism to the lower part of a hopper of the feeder; the bag moving device comprises a sealing mold, a clamping mechanism and a heat sealing mechanism; the clamping mechanism and the heat sealing mechanism are arranged in the sealing mold; and the bag moving device is used for conveying the outer packaging bags loaded with the small-package gas adjusting agents to the clamping mechanism. The application has the effects of improving the packaging efficiency of the small-package gas adjusting agents and reducing the labor intensity of workers.

Description

Technical Field

[0001] This application relates to the field of modified atmosphere packaging technology, and in particular to an intelligent production line for small-package modified atmosphere packaging of Chinese medicinal materials and finished grains. Background Technology

[0002] Modified atmosphere packaging (MAP) technology for Chinese medicinal herbs is a green, environmentally friendly, and safe new preservation technology that replaces traditional methods such as sulfur and aluminum phosphide fumigation. It is primarily applicable to the comprehensive storage and preservation of Chinese medicinal herbs during warehousing and distribution, maintaining their good appearance and internal quality. It reduces natural losses during storage and lowers overall storage and preservation costs. When applied to finished grain products, MAP technology can minimize moisture absorption and oxidation, effectively ensuring the quality of the finished grain.

[0003] Small-package modified atmosphere packaging (MAP) refers to MAP that is sealed in a small, gas-exchange-enabled bag. This allows for direct insertion of the MAP into the packaging of medicinal herbs or finished grains during storage or packaging. To prevent the MAP from becoming ineffective during storage and transportation, the small-package MAP must be placed inside an outer packaging bag, which is then vacuum-sealed.

[0004] In related technologies, small-package modified atmosphere packaging agents are often manually filled into outer packaging bags, and then vacuum-sealed by workers using vacuum equipment. This packaging method is inefficient and labor-intensive for workers. Summary of the Invention

[0005] In order to improve the packaging efficiency of small-package modified atmosphere packaging and reduce the labor intensity of workers, this application provides an intelligent production line for small-package modified atmosphere packaging of Chinese medicinal materials and finished grains.

[0006] The intelligent production line for small-packaged modified atmosphere packaging of Chinese medicinal materials and finished grains provided in this application adopts the following technical solution:

[0007] An intelligent production line for small-packaged modified atmosphere packaging of Chinese medicinal materials and finished grains includes...

[0008] A transfer device for transferring small packages of modified atmosphere packaging materials;

[0009] A bagging device for filling small packages of modified atmosphere into outer packaging bags, including a bag clamping mechanism for holding the outer packaging bags, a bagging conveying mechanism for conveying the bag clamping mechanism, and a feeder for conveying the small packages of modified atmosphere. The bagging conveying mechanism can convey the outer packaging bags held by the bag clamping mechanism to the bottom of the feeder's hopper.

[0010] A sealing device for vacuum sealing an outer packaging bag containing a small package of modified atmosphere, comprising an openable and closable sealing mold, a clamping mechanism for holding the outer packaging bag, and a heat sealing mechanism for heat sealing the outer packaging bag, wherein the clamping mechanism and the heat sealing mechanism are both disposed within the sealing mold.

[0011] A bag transfer device is used to transfer outer packaging bags containing small packages of modified atmosphere to a clamping mechanism;

[0012] The conveying device can transfer small packages of modified atmosphere to the hopper of the feeder.

[0013] By adopting the above technical solution, when packaging small packages of modified atmosphere packaging agents, the small packages of modified atmosphere packaging agents are first conveyed to the hopper of the feeder via a conveying device. When the bag-filling conveying mechanism conveys the bag-clamping mechanism holding the outer packaging bag and the outer packaging bag to the bottom of the hopper, the small packages of modified atmosphere packaging agents in the feeder hopper are placed into the outer packaging bag. Next, the bag-transferring device conveys the outer packaging bag containing the small packages of modified atmosphere packaging agents to one of the clamping mechanisms, which then clamps the bag. The sealing mold is then closed, and a vacuum is created inside the sealing mold using a vacuum pump or similar equipment. After the air inside the outer packaging bag is removed, it is heat-sealed by a heat-sealing mechanism. Finally, the sealing mold is opened, and the clamping mechanisms are removed from holding the outer packaging bag.

[0014] Compared to manual packaging, the production line of this application improves the automation level of small-package modified atmosphere packaging, increases the packaging efficiency of small-package modified atmosphere bags, and greatly reduces the labor intensity of workers.

[0015] Optionally, the sealing mold includes a lower seat and an upper cover, and the sealing device includes a mold closing mechanism. The mold closing mechanism includes a mold base, a swing arm, a lifting cylinder, and a connecting arm. One end of the swing arm is rotatable, and the upper cover is disposed on the other end of the swing arm. The lower seat is hinged to the mold base. The cylinder body of the lifting cylinder is rotatable, and the end of the piston rod of the lifting cylinder is hinged to one end of the lower seat. The two ends of the connecting arm are respectively rotatably disposed on the piston rod of the lifting cylinder and the swing arm.

[0016] By adopting the above technical solution, after the clamping mechanism holds the outer packaging bag containing the small package of modified atmosphere solution, the piston rod of the lifting cylinder retracts, causing the cylinder body of the lifting cylinder to rotate, and the lower seat to rotate simultaneously. The lifting cylinder drives the swing arm to rotate through the connecting arm, so that the upper cover moves towards the lower seat.

[0017] The lower seat can rotate, allowing it to be positioned conveniently for the clamping mechanism to hold the outer packaging bag. After the clamping mechanism grips the outer packaging bag, rotating the lower seat brings it closer to the upper cover, facilitating the closing of the upper cover with the lower seat. Driving the lower seat to rotate also synchronously drives the upper cover to move closer to the lower seat, ensuring a proper closing. This design reduces the need for a drive source and improves the structural compactness of the sealing mold.

[0018] Optionally, the mold closing mechanism further includes a swing rod, a swing seat, and a hinge seat. The hinge seat and the swing seat are respectively hinged to both ends of the swing arm. Both ends of the swing rod are respectively hinged to the hinge seat and the swing seat. The swing seat is connected to the upper cover.

[0019] By adopting the above technical solution, when the swing arm rotates relative to the hinge seat, the swing rod also rotates relative to the hinge seat. Through the swing arm and the swing rod, the swing seat rotates relative to the swing arm, thereby causing the upper cover connected to the swing seat to rotate together. The rotation of the swing arm moves the upper cover towards the lower seat; that is, when the upper cover and lower seat are closed, the upper cover rotates relative to the swing arm through the swing rod and the swing seat, causing the upper cover to rotate closer to the lower seat. The reverse is true when the swing arm rotates to separate the upper cover from the lower seat. This arrangement not only facilitates the closing of the upper cover and lower seat but also improves the efficiency of the closing process.

[0020] Optionally, the sealing mold includes a lower seat and an upper cover that fits onto the lower seat, and the packaging device further includes a flattening mechanism, which includes a flattening plate that is slidably disposed in the lower seat and a flattening drive source for driving the flattening plate to reciprocate.

[0021] By adopting the above technical solution, the lower seat is equipped with a flattening mechanism, so that after the outer packaging bag is placed into the lower seat and clamped by the clamping mechanism, it will come into contact with the flattening plate. After the upper cover closes with the lower seat, the lower seat can be rotated to near horizontal position by the lifting cylinder and the hinge seat, thereby allowing the flattening plate inside the lower seat to move to a near horizontal state. At this time, the flattening plate supports the outer packaging bag and the small packaged modified atmosphere solution inside the outer packaging bag. Then, a vacuum is drawn, and the flattening drive source drives the flattening plate to move back and forth. Through the flattening mechanism, the small packaged modified atmosphere solution can be evenly distributed inside the outer packaging bag, making the heat-sealed outer packaging bag flat overall, which is convenient for packing and transportation.

[0022] Because the outer packaging bag is held by a clamping mechanism, the air between the upper cover and the lower seat, and outside the outer packaging bag, is drawn out during vacuuming. This makes the air pressure inside the outer packaging bag greater than outside, causing the outer packaging bag to expand. The space created by the expanded outer packaging bag helps the flat plate to evenly distribute the small packaged modified atmosphere inside the outer packaging bag, improving the uniformity of the distribution of the small packaged modified atmosphere in the outer packaging bag, and making the overall outer packaging bag flatter after heat sealing.

[0023] Optionally, the heat sealing mechanism includes a heating block and a resilient abutting block, wherein when the upper cover is closed on the lower seat, the abutting block and the heating block abut against each other;

[0024] The clamping block is mounted on the lower seat, and the heating block is mounted on the upper cover; or

[0025] The heating block is mounted on the lower seat, and the abutting block is mounted on the lower seat.

[0026] By employing the above technical solution, when the outer packaging bag is placed into the lower seat, the opening of the outer packaging bag contacts the heating block or the clamping block, and then the clamping mechanism clamps the outer packaging bag. Next, the upper cover and lower seat are closed, and the clamping block and heating block clamp the outer packaging bag, thus preventing gas inside the outer packaging bag from escaping and facilitating the expansion of the outer packaging bag during vacuuming. After vacuuming and flattening, the opening of the outer packaging bag is heat-sealed by heating with the heating block.

[0027] This heat-sealing mechanism not only heat-seals the outer packaging bag, but also helps to evenly distribute the modified atmosphere packaging agent inside the outer packaging bag.

[0028] Optionally, the bagging device further includes a sorting mechanism, which includes an upper sorting component and a lower sorting component;

[0029] The upper finishing component includes a finishing hammer and an upper finishing drive source for driving the finishing hammer to reciprocate in the vertical direction.

[0030] The lower sorting component includes a sorting plate and a lower sorting drive source for driving the sorting plate to reciprocate in the vertical direction.

[0031] The sorting plate is located below the sorting hammer, and the bagging and conveying mechanism can convey the outer packaging bag held by the bag clamping mechanism to the area below the sorting hammer and above the sorting plate.

[0032] By adopting the above technical solution, after the small package of modified atmosphere packaging agent is placed into the outer packaging bag, the upper and lower sorting drive sources are activated, causing the sorting hammer to reciprocate into the outer packaging bag to push the small package of modified atmosphere packaging agent to the bottom of the outer packaging bag. At the same time, the sorting plate reciprocates to push the bottom of the outer packaging bag, so that the small package of modified atmosphere packaging agent can evenly fill the bottom of the outer packaging bag. This setting prevents the modified atmosphere packaging agent in the small package from accumulating at the opening of the outer packaging bag, which facilitates the subsequent clamping mechanism to clamp the opening of the outer packaging bag and the subsequent heat sealing mechanism to heat seal the opening of the outer packaging bag.

[0033] Optionally, the lower sorting assembly further includes a shaking block and a shaking rod. The shaking block has a movable hole, and the shaking rod passes through the movable hole. The diameter of the movable hole is larger than the diameter of the shaking rod. One end of the shaking rod is connected to the sorting plate. The lower sorting drive source is used to drive the shaking block to reciprocate in the vertical direction.

[0034] By adopting the above technical solution, the shaking block is driven to move back and forth in the vertical direction by the sorting drive source. Since the diameter of the movable hole is larger than the diameter of the shaking rod, the shaking rod not only moves in the vertical direction in the movable hole, but also swings in the movable hole. This causes the sorting plate to shake while moving in the vertical direction, which helps the small package of modified atmosphere to fill the bottom of the outer packaging bag evenly.

[0035] Optionally, the transmission device includes a main transmission mechanism, multiple auxiliary transmission mechanisms, multiple flow limiting mechanisms, and multiple filling boxes for loading small packages of modified atmosphere. The main transmission mechanism includes a main conveyor belt for transporting the filling boxes, and the auxiliary transmission mechanisms include multiple auxiliary conveyor belts for transporting the filling boxes onto the main conveyor belt. The flow limiting mechanisms and auxiliary conveyor belts are alternately arranged along the transmission direction of the main conveyor belt. The flow limiting mechanism includes a flow limiting block that is slidably disposed on the main conveyor belt in a vertical direction and a flow limiting drive source for driving the flow limiting block to rise and fall. The flow limiting block can move its upper end to be above the roller of the main conveyor belt, and the flow limiting block can also move to be below the upper end of the roller of the main conveyor belt.

[0036] By adopting the above technical solution, after producing small-packaged modified atmosphere (MAP) solutions using multiple devices that fill small bags with modified atmosphere powder, the MAP solutions produced by each device are placed into filling boxes located on different secondary conveyor belts. These filling boxes are then transported to the main conveyor belt via the secondary conveyor belts for consolidated packaging of the MAP solutions produced by multiple devices. By incorporating sensors, when a filling box on the secondary conveyor belt is about to move onto the main conveyor belt, and when a filling box on the main conveyor belt is about to move to the junction of the main and secondary conveyor belts, a current-limiting drive source moves a current-limiting block so that its upper end is positioned above the rollers of the main conveyor belt. This blocks the filling box on the main conveyor belt, allowing it to move smoothly from the secondary conveyor belt to the main conveyor belt, minimizing the risk of collisions between the filling boxes transported from the secondary conveyor belt and those on the main conveyor belt, which could lead to the filling box tipping over or becoming stuck on the main conveyor belt.

[0037] Optionally, the main transmission mechanism includes a main return conveyor belt and a main elevator. The main conveyor belt is used to transport the filling box to the main elevator, and the main elevator is used to transport the filling box to the main return conveyor belt. The secondary transmission mechanism includes a secondary return conveyor belt and a secondary elevator. The secondary return conveyor belt is used to transport the filling box to the secondary return conveyor belt, and the secondary return conveyor belt is used to transport the filling box to the secondary conveyor belt. The transmission device also includes multiple return mechanisms corresponding to the secondary return conveyor belt. Each return mechanism includes a blocking component and a pushing component.

[0038] The pushing assembly includes a pushing block and a pushing drive source. The pushing block is slidably disposed on the main return conveyor belt along the transmission direction of the secondary return conveyor belt, and the pushing drive source drives the pushing block to reciprocate.

[0039] The pushing assembly and the blocking assembly are arranged along the transmission direction of the main return conveyor belt. The blocking assembly includes a blocking block that is slidably disposed on the main return conveyor belt in the vertical direction and a blocking drive source that drives the blocking block to rise and fall. The blocking block can move its upper end to be above the roller of the main return conveyor belt, and the blocking block can also move itself to be below the upper end of the roller of the main return conveyor belt.

[0040] By adopting the above technical solution, after the small packages of modified atmosphere powder (MAP) in the filling box are transferred to the feeder, the empty filling boxes are then transported to the main elevator via the main conveyor belt, and from there to the main return conveyor belt. Sensors are installed on each secondary return conveyor belt to detect the number of filling boxes. On the secondary return conveyor belt with fewer filling boxes, the blocking block of the return mechanism rises under the action of the blocking drive source to block the filling boxes. At this time, the pushing drive source drives the pushing block to move closer to the secondary return conveyor belt, pushing the blocked filling boxes onto the secondary return conveyor belt. The secondary return conveyor belt transports the filling boxes to the secondary elevator, and then the secondary elevator transports the filling boxes back to the secondary conveyor belt. This achieves a filling box cycle, enabling the aggregation of small packages of MAP produced by multiple machines and the supply of filling boxes to multiple machines.

[0041] Optionally, the transmission device includes a main transmission mechanism and a feeding mechanism. The main transmission mechanism includes a main conveyor belt. The feeding mechanism includes a feeding bucket rotatably mounted on the main conveyor belt and a clamping assembly mounted on the feeding bucket. The feeding bucket can be rotated so that one end is aligned with the hopper inlet of the feeder. The clamping assembly includes a clamping hook and a clamping drive source for driving the clamping hook to move toward the feeding bucket.

[0042] By adopting the above technical solution, when the filling box containing small packages of modified atmosphere powder is conveyed to the feeding mechanism on the main conveyor belt, the clamping hook is driven by the clamping drive source to move towards the feeding hopper, so that the feeding hopper and the end of the clamping hook clamp the filling box. Then, the feeding hopper is rotated until one end of the feeding hopper is aligned with the feeder, and the small packages of modified atmosphere powder in the filling box enter the feeding hopper and then enter the hopper of the feeder.

[0043] This design is simple and makes it easy to add small packages of modified atmosphere from the filling box into the feeder's hopper.

[0044] In summary, this application includes at least one of the following beneficial technical effects:

[0045] 1. Small packages of modified atmosphere packaging are conveyed to the bagging device via a conveying device. The bagging device fills the small packages of modified atmosphere packaging into outer packaging bags. Then, the bag transfer device transfers the outer packaging bags containing the small packages of modified atmosphere packaging to the sealing device. Finally, the sealing device vacuum heat-seals the outer packaging bags containing the small packages of modified atmosphere packaging. This setup achieves full automation of the small package modified atmosphere packaging process, improves the packaging efficiency of small package modified atmosphere packaging, and reduces the labor intensity of workers.

[0046] 2. Through the mold closing mechanism, when the upper cover and the lower seat are closed, the lower seat can rotate to a near horizontal position. Through the clamping mechanism and the heat sealing mechanism, the outer packaging bag can expand during vacuuming, which helps the small package of modified atmosphere to move inside the outer packaging bag. Through the flattening mechanism, the small package of modified atmosphere can be evenly distributed inside the outer packaging bag. In this way, the outer packaging bag that completes vacuuming and heat sealing is small in size and flat, making it easy to transport.

[0047] 3. The upper and lower sorting components ensure that the small packages placed inside the outer packaging bag can evenly fill the bottom wall of the outer packaging bag, facilitating the subsequent clamping of the bag opening and heat sealing of the outer packaging bag. Attached Figure Description

[0048] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0049] Figure 2 This is a schematic diagram highlighting the structure of the transmission device in the embodiments of this application.

[0050] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0051] Figure 4 This is a schematic diagram highlighting the bagging device and the bag-transferring device in the embodiments of this application.

[0052] Figure 5 This is a schematic diagram of the structure of the sorting component highlighted in the embodiments of this application.

[0053] Figure 6 This is a schematic diagram highlighting the packaging device in the embodiments of this application.

[0054] Figure 7 This is a schematic diagram highlighting the heat sealing mechanism and the clamping mechanism in the embodiments of this application.

[0055] Explanation of reference numerals in the attached figures:

[0056] 1. Conveying device; 11. Main conveying mechanism; 111. Main conveyor belt; 112. Main return conveyor belt; 113. Main hoist; 12. Auxiliary conveying mechanism; 121. Auxiliary conveyor belt; 122. Auxiliary return conveyor belt; 123. Auxiliary hoist; 13. Flow limiting mechanism; 131. Flow limiting block; 132. Flow limiting drive source; 14. Return mechanism; 141. Blocking assembly; 1411. Blocking block; 1412. Blocking drive source; 142. Pushing assembly; 1421. Pushing block; 1422. 1. Material pushing drive source; 15. Feeding mechanism; 151. Feeding motor; 152. Feeding hopper; 153. Clamping assembly; 1531. Clamping drive source; 1532. Clamping hook; 2. Bagging device; 21. Bagging machine platform; 22. Bagging transmission mechanism; 221. Bagging motor; 222. Bagging turntable; 23. Bag clamping mechanism; 231. Main clamping claw cylinder; 232. Secondary clamping claw cylinder; 24. Feeder; 25. Sorting mechanism; 251. Upper sorting assembly; 2511. Upper sorting drive source; 2512, Sorting hammer; 252, Lower sorting assembly; 2521, Lower sorting drive source; 2522, Sorting plate; 2523, Shaking block; 2524, Shaking rod; 2525, Movable hole; 2526, Limit block; 26, Vibration cylinder; 27, Vibration plate; 3, Packaging device; 31, Packaging motor; 32, Packaging tray; 321, Mounting column; 33, Sealing mold; 331, Lower seat; 332, Upper cover; 34, Mold closing mechanism; 341, Mold base; 342, Lifting cylinder; 343. Swing arm; 344. Swing rod; 345. Swing seat; 346. Hinge seat; 347. Connecting arm; 35. Clamping mechanism; 351. Clamping plate; 352. Clamping motor; 36. Heat sealing mechanism; 361. Pressing block; 362. Heating block; 37. Flattening mechanism; 371. Flattening plate; 372. Flattening drive source; 38. Discharge conveyor belt; 4. Bag transfer device; 41. Bag transfer motor; 42. Bag transfer arm; 43. Fixed clamping plate; 44. Rotating clamping plate; 45. Rotating motor. Detailed Implementation

[0057] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0058] This application discloses an intelligent production line for small-packaged modified atmosphere packaging of traditional Chinese medicinal materials and finished grains. (Refer to...)Figure 1 The intelligent production line for small-package modified atmosphere packaging of Chinese medicinal materials and finished grains includes a conveying device 1 for conveying small-package modified atmosphere packaging, a bagging device 2 for filling small-package modified atmosphere packaging into outer packaging bags, a sealing device 3 for vacuum sealing the outer packaging bags containing small-package modified atmosphere packaging, and a bag transfer device 4 for conveying the outer packaging bags containing small-package modified atmosphere packaging from the bagging device 2 to the sealing device 3.

[0059] Reference Figure 2 The transmission device 1 includes a main transmission mechanism 11, four sets of auxiliary transmission mechanisms 12, three sets of flow limiting mechanisms 13, four sets of return mechanisms 14, a feeding mechanism 15, and multiple loading boxes (not shown in the figure). The loading boxes are used to load small packages of modified atmosphere.

[0060] Reference Figure 2 The main conveying mechanism 11 includes a main conveyor belt 111, a main return conveyor belt 112, and a main elevator 113. The main conveyor belt 111 is located above the main return conveyor belt 112, and the frame of the main conveyor belt 111 is fixed on the frame of the main return conveyor belt 112. The conveying directions of the main conveyor belt 111 and the main return conveyor belt 112 are opposite. The main elevator 113 is located at one end of the main conveyor belt 111 and the main return conveyor belt 112. The main conveyor belt 111 is used to convey the filling boxes to the main elevator 113, and the main elevator 113 is used to convey the filling boxes to the main return conveyor belt 112. The main return conveyor belt 112 is used to convey the filling boxes away from the main elevator 113.

[0061] Reference Figure 2 The secondary conveying mechanism 12 includes a secondary conveyor belt 121, a secondary return conveyor belt 122, and a secondary elevator 123. The secondary conveyor belt 121 is located above the secondary return conveyor belt 122, and its frame is fixed to the frame of the secondary return conveyor belt 122. The conveying directions of the secondary conveyor belt 121 and the secondary return conveyor belt 122 are opposite. The secondary return conveyor belt 122 is used to convey the filling box away from the main return conveyor belt 112. The secondary elevator 123 is located at one end of the secondary conveyor belt 121 and the secondary return conveyor belt 122. The secondary conveyor belt 121 is used to convey the filling box towards the main conveyor belt 111 until it is transferred to the main conveyor belt 111. The secondary return conveyor belt 122 is used to convey the filling box away from the main return conveyor belt 112 until it is transferred to the secondary elevator 123. The secondary elevator 123 is used to transfer the filling box onto the secondary return conveyor belt 122.

[0062] Reference Figure 2The current limiting mechanism 13 is mounted on the frame of the main conveyor belt 111. The auxiliary conveyor belt 121 and the current limiting mechanism 13 are staggered along the transmission direction of the main conveyor belt 111. The current limiting mechanism 13 and the adjacent auxiliary conveyor belt 121 are arranged along the transmission direction of the main conveyor belt 111. The current limiting mechanism 13 includes three current limiting blocks 131 and a current limiting drive source 132. The current limiting drive source 132 is a cylinder fixed on the frame of the main conveyor belt 111. The piston rod of the current limiting drive source 132 extends and retracts vertically. The three current limiting blocks 131 are all fixed to the ends of the piston rods of the current limiting drive source 132. The current limiting blocks 131 can move so that their upper ends are above the rollers of the main conveyor belt 111, and the current limiting blocks 131 can also move so that they are below the upper ends of the rollers of the main conveyor belt 111.

[0063] Reference Figure 2 By installing sensors on the secondary conveyor belt 121 and the main conveyor belt 111, when it is detected that one of the loading boxes on the secondary conveyor belt 121 is about to enter the main conveyor belt 111, and a loading box on the main conveyor belt 111 is about to enter the intersection of the main conveyor belt 111 and the secondary conveyor belt 121, the current limiting drive source 132 drives the current limiting block 131 to rise to block the loading box on the main conveyor belt 111 from continuing to move, thereby allowing the loading box on the secondary conveyor belt 121 to be moved onto the main conveyor belt 111.

[0064] Reference Figure 2 The return mechanism 14 is configured in correspondence with the secondary return conveyor belt 122. The return mechanism 14 includes a blocking component 141 and a pushing component 142, which are arranged along the transmission direction of the main return conveyor belt 112.

[0065] Reference Figure 2 The blocking assembly 141 and the adjacent secondary return conveyor belt 122 are arranged along the transmission direction of the main return conveyor belt 112. The blocking assembly 141 consists of three blocking blocks 1411 and a blocking drive source 1412. The blocking drive source 1412 is a cylinder fixed on the frame of the main return conveyor belt 112, and the piston rod of the blocking drive source 1412 extends and retracts in the vertical direction. The three blocking blocks 1411 are all fixed to the ends of the piston rods of the blocking drive source 1412. The blocking blocks 1411 can move so that their upper ends are above the rollers of the main return conveyor belt 112, and the blocking blocks 1411 can also move so that they are below the upper ends of the rollers of the main return conveyor belt 112.

[0066] Reference Figure 2The pushing assembly 142 includes three pushing blocks 1421 and a pushing drive source 1422. The pushing drive source 1422 is a cylinder fixed on the frame of the main return conveyor belt 112. The piston rod of the pushing drive source 1422 extends and retracts along the transmission direction of the secondary return conveyor belt 122. The three pushing blocks 1421 are all directly opposite the adjacent secondary return conveyor belt 122 and are all fixed to the end of the piston rod of the pushing drive source 1422. The pushing blocks 1421 are slidably disposed on the main return conveyor belt 112 along the extension direction of the secondary return conveyor belt 122, and the upper end of the pushing blocks 1421 is located at the upper end of the main return conveyor belt 112.

[0067] Reference Figure 2 By installing sensors on the secondary return conveyor belt 122 to detect the number of boxes on the secondary return conveyor belt 122, for secondary return conveyor belts 122 with fewer boxes, the blocking drive source 1412 drives the blocking block 1411 to rise to block the boxes on the main return conveyor belt 112, and then the corresponding pushing drive source 1422 drives the pushing block 1421 to move towards the secondary return conveyor belt 122 to push the boxes onto the secondary return conveyor belt 122.

[0068] Reference Figure 3 The feeding mechanism 15 includes a feeding motor 151, a feeding bucket 152, and two sets of clamping assemblies 153. The feeding bucket 152 is hinged to the frame of the main conveyor belt 111. The output shaft of the feeding motor 151 is fixedly connected to the hinge shaft of the feeding bucket 152. The hinge shaft connecting the feeding bucket 152 to the main conveyor belt 111 is fixedly connected to the feeding bucket 152 itself, thereby enabling the feeding motor 151 to drive the feeding bucket 152 to rotate. The two sets of clamping assemblies 153 are located on both sides of the feeding bucket 152. Each clamping assembly 153 includes a clamping drive source 1531 and a clamping hook 1532. The clamping drive source 1531 is a cylinder whose cylinder body is fixed to the feeding bucket 152. The clamping hook 1532 is fixed to the end of the piston rod of the clamping drive source 1531. The end of the clamping hook 1532 is located below the rollers of the main conveyor belt 111, and the clamping hook 1532 can move its end out between the rollers of the main conveyor belt 111.

[0069] Reference Figure 3 When the loading box moves to the lower side of the feeding bucket 152 and between the two clamping hooks 1532, the clamping drive source 1531 drives the clamping hooks 1532 to move closer to the feeding bucket 152. The end of the clamping hooks 1532 drives the loading box to move upward until the clamping hooks 1532 clamp the loading box with the feeding bucket 152.

[0070] Reference Figure 4The bagging device 2 includes a bagging machine base 21, a bagging conveying mechanism 22, multiple bag clamping mechanisms 23 for clamping outer packaging bags, a feeder 24 for conveying small packages of modified atmosphere powder, and a sorting mechanism 25 for assisting bagging. The bagging conveying mechanism 22 includes a bagging motor 221 fixed on the bagging machine base 21 and a bagging turntable 222 fixed on the output shaft of the bagging motor 221. The bagging turntable can be rotated by starting the bagging motor 221.

[0071] Reference Figure 4 The bag clamping mechanism 23 is eccentrically positioned on the bagging tray and is circumferentially distributed around the rotation axis of the bagging tray. The bag clamping mechanism 23 includes a main gripper cylinder 231 and two symmetrically arranged auxiliary gripper cylinders 232. The two auxiliary gripper cylinders 232 are respectively fixed to different grippers of the main gripper cylinder 231. The main gripper cylinder 231 can drive the two auxiliary gripper cylinders 232 to move closer or further apart. The grippers of the two auxiliary gripper cylinders 232 are positioned opposite each other, allowing them to clamp the outer packaging bag. When the outer packaging bag is placed at the bag clamping mechanism 23, it is transferred to one of the auxiliary gripper cylinders 232 using a robotic arm or suction cup, where it is clamped.

[0072] Reference Figure 4 A vibrating cylinder 26 is fixed on the bagging machine base 21. The piston rod of the vibrating cylinder 26 extends and retracts vertically. A vibrating plate 27 is fixed to the end of the piston rod of the vibrating cylinder 26. The feeder 24 is fixed on the vibrating plate 27. The bag clamping turntable can be rotated so that the outer packaging bag clamped by one of the bag clamping mechanisms 23 moves to the bottom of the feeder 24 hopper. The feeding bucket 152 can be rotated so that one end is aligned with the feeder 24 hopper inlet. After the clamping assembly 153 clamps the filling box with the feeding bucket 152, the small packaged modified atmosphere agent in the filling box enters the feeding bucket 152 by rotating the feeding bucket 152, and then falls into the feeder 24 hopper.

[0073] Reference Figure 4 The sorting mechanism 25 includes an upper sorting component 251 and a lower sorting component 252. The upper sorting component 251 is located directly above the lower sorting component 252. The bag clamping turntable can rotate so that the outer packaging bag clamped by one of the bag clamping mechanisms 23 moves between the upper sorting component 251 and the lower sorting component 252.

[0074] Reference Figure 4 The upper finishing component 251 includes an upper finishing drive source 2511 and a finishing hammer 2512. The upper finishing drive source 2511 is a cylinder whose cylinder body is fixed on the bagging machine base 21. The piston rod of the upper finishing drive source 2511 extends and retracts in the vertical direction. The finishing hammer 2512 is located below the finishing drive source and is fixedly connected to the end of the piston rod of the upper finishing drive source 2511.

[0075] Reference Figure 5 The lower sorting assembly 252 includes a lower sorting drive source 2521, a sorting plate 2522, a shaking block 2523, and two shaking rods 2524. The lower sorting drive source 2521 is a cylinder whose cylinder body is fixed on the bagging machine base 21, and the piston rod of the lower sorting drive source 2521 extends and retracts vertically. The shaking block 2523 is fixed to the end of the piston rod of the lower sorting drive source 2521, and two movable holes 2525 extend vertically through the shaking block 2523. The two shaking rods 2524 are respectively inserted into different movable holes 2525, and the diameter of the movable holes 2525 is larger than the diameter of the shaking rods 2524. The sorting plate 2522 is located above the shaking block 2523 and below the sorting hammer 2512. The upper end of the shaking rod 2524 is fixedly connected to the sorting plate 2522, and the lower end of the shaking rod 2524 is fixed with a limiting block 2526 whose diameter is larger than that of the movable hole 2525.

[0076] Reference Figure 4 , Figure 5 When the outer packaging bag containing the small package of modified atmosphere powder moves between the upper sorting component 251 and the lower sorting component 252, the upper sorting drive source 2511 drives the sorting hammer 2512 to move up and down. The sorting hammer 2512 extends into the outer packaging bag and pushes the small package of modified atmosphere powder located at the bag opening to the bottom of the outer packaging bag. At the same time, the lower drive source drives the shaking block 2523 to move up and down, and the sorting plate 2522 moves up and down and shakes, thereby causing the lower end of the outer packaging bag to shake, so that the bottom of the outer packaging bag is filled with the small package of modified atmosphere powder.

[0077] Reference Figure 6 The packaging device 3 includes a packaging motor 31, a packaging tray 32 fixed on the output shaft of the packaging motor 31, and a plurality of sealing molds 33 arranged on the packaging motor 31, and a mold closing mechanism 34 having the same number of sealing molds 33.

[0078] Reference Figure 6 The sealing molds 33 are eccentrically mounted on the packaging tray 32 and are evenly distributed circumferentially around the rotation axis of the packaging tray 32. The mold closing mechanism 34 is symmetrically arranged with the sealing molds 33, and each mold closing mechanism 34 is used to drive the opening and closing of different sealing molds 33. The sealing mold 33 includes a lower base 331 and an upper cover 332. The upper cover 332 can close to the lower base 331, and the upper cover 332 can also be separated from the lower base 331.

[0079] Reference Figure 4 , Figure 6The bag-transfer device 4 includes a bag-transfer motor 41, a bag-transfer arm 42, a fixed clamping plate 43, a rotating clamping plate 44, and a rotating motor 45. One end of the bag-transfer arm 42 is fixed to the output shaft of the bag-transfer motor 41. The rotating motor 45 and the clamping plate are both fixed to the other end of the arm. The rotating clamping plate 44 is fixed to the output shaft of the rotating motor 45 and is used to abut against the fixed clamping plate 43. By driving the bag-transfer arm 42 to rotate through the bag-transfer motor 41, the fixed clamping plate 43 and the rotating clamping plate 44 can be moved to the adjacent bag-clamping mechanism 23, and can also be moved to the adjacent sealing mold 33. By driving the rotating clamping plate 44 to rotate through the rotating motor 45, the rotating clamping plate 44 and the fixed clamping plate 43 can clamp or release the outer packaging bag, thereby achieving the function of transferring the outer packaging bag.

[0080] Reference Figure 6 The mold clamping mechanism 34 includes a mold base 341 and a lifting cylinder 342. The mold base 341 is fixed on the packaging tray 32, and the lower seat 331 is hinged to the mold base 341. The cylinder body of the lifting cylinder 342 is hinged to the packaging tray 32, and the piston rod of the lifting cylinder 342 passes through the packaging tray 32, with the end of the piston rod hinged to the lower seat 331. By extending and retracting the piston rod of the lifting cylinder 342, the lower seat 331 can be rotated until it is nearly horizontal.

[0081] Reference Figure 6 , Figure 4 The mold closing mechanism 34 also includes a swing arm 343, a swing rod 344, a swing seat 345, a hinge seat 346, and a connecting arm 347. A mounting post 321 is fixed on the packaging tray 32, and the mounting post 321 is coaxial with the rotation axis of the packaging tray 32. The hinge seat 346 is fixed to the side wall of the mounting post 321. One end of the swing arm 343 is hinged to the hinge seat 346, and the other end of the swing arm 343 is hinged to the swing seat 345, which is fixed to the upper cover 332. Both ends of the swing rod 344 are hinged to the hinge seat 346 and the swing seat 345, respectively. Rotating the swing arm 343 allows the swing seat 345 to swing through the swing rod 344 and the hinge seat 346. The two ends of the connecting arm 347 are respectively hinged to the piston rod of the swing arm 343 and the lifting cylinder 342. The hinge end of the connecting arm 347 and the swing arm 343 is located between the hinge seat 346 and the swing seat 345.

[0082] Reference Figure 6 , Figure 7 By extending and retracting the piston rod of the lifting cylinder 342, the connection between the connecting arm 347 and the lifting cylinder 342 moves, thereby causing the swing arm 343 to rotate, so that the upper cover 332 moves to close or separate from the lower seat 331.

[0083] Reference Figure 6 ,Figure 7 The packaging device 3 also includes multiple sets of clamping mechanisms 35, multiple sets of heat sealing mechanisms 36, and multiple sets of flattening mechanisms 37. The clamping mechanisms 35, heat sealing mechanisms 36, and flattening mechanisms 37 are all arranged correspondingly to the sealing mold 33 and are all located inside the sealing mold 33. The number of heat sealing mechanisms 36 and flattening mechanisms 37 is the same as that of the sealing mold 33. The number of clamping mechanisms 35 is twice that of the sealing mold 33, that is, one set of heat sealing mechanisms 36, one set of flattening mechanisms 37, and two sets of clamping mechanisms 35 are provided on one set of sealing mold 33.

[0084] Reference Figure 7 The heat-sealing mechanism 36 includes an elastic abutment block 361 and a heating block 362 that can generate heat when energized. The abutment block 361 is fixed to the lower seat 331, and the heating block 362 is fixed to the upper cover 332. When the upper cover 332 is closed with the lower seat 331, the abutment block 361 and the heating block 362 abut against each other. In other embodiments, the heating block 362 may also be disposed on the lower seat 331, and the abutment block 361 may also be disposed on the upper cover 332.

[0085] Reference Figure 7 Two sets of clamping mechanisms 35 on a set of sealing molds 33 are located on both sides of the abutment block 361, including a clamping plate 351 and a clamping motor 352. The clamping motor 352 is fixed on the lower seat 331, and one end of the clamping plate 351 is fixed on the clamping motor 352. The clamping plate 351 can rotate until it abuts against the abutment block 361. When clamping the outer packaging bag, the clamping plate 351 is first driven to rotate by the clamping motor 352, then the opening of the outer packaging bag is moved to abut against the abutment block 361, and then the clamping plate 351 is driven to reset by the clamping motor 352 to clamp the opening of the outer packaging bag.

[0086] Reference Figure 7 The leveling mechanism 37 includes a leveling plate 371 and a leveling drive source 372. The leveling drive source 372 is a cylinder whose cylinder body is fixed to the lower seat 331. The piston rod of the leveling drive source 372 passes through the lower seat 331 and is fixedly connected to the leveling plate 371. The leveling plate 371 is slidably disposed within the lower seat 331 along the extension and retraction direction of the piston rod of the leveling drive source 372. When the lower seat 331 rotates to a near-horizontal position, the extension and retraction direction of the piston rod of the leveling drive source 372 is nearly vertical.

[0087] Reference Figure 7 While the sealing mold 33 is being evacuated, the spreading plate 371 is driven to move back and forth by the spreading drive source 372, which helps the small package of modified atmosphere to be evenly distributed inside the outer packaging bag.

[0088] Reference Figure 6The packaging device 3 also includes a discharge conveyor belt 38. After the sealing mold 33 is opened, the outer packaging bag that has been packaged is removed from the clamping mechanism 35, and the outer packaging bag falls onto the discharge conveyor belt 38 and is transported to the filling box for sealing and packaging.

[0089] The implementation principle of an intelligent production line for small-packaged modified atmosphere packaging (MAP) for Chinese medicinal materials and finished grains according to this application embodiment is as follows: First, the conveyor device 1 aggregates the production of small-packaged MAP from multiple devices. Then, the bagging device 2 fills the bottom of the outer packaging bag with the small-packaged MAP. Next, the bag-transferring device 4 transfers the outer packaging bag containing the small-packaged MAP to the lower seat 331 and fixes it with the clamping mechanism 35. Then, the sealing mold 33 is closed and a vacuum is drawn. At the same time, the spreading mechanism 37 evenly distributes the small-packaged MAP inside the outer packaging bag. Finally, the heat-sealing mechanism 36 heat-seals the opening of the outer packaging bag, and the sealed outer packaging bag and small-packaged MAP are then fed onto the discharge conveyor belt 38.

[0090] This setup improves the packaging efficiency of modified atmosphere packaging in small bags and greatly reduces the workload of staff.

[0091] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An intelligent production line for small-packaged modified atmosphere packaging of Chinese medicinal materials and finished grains, characterized in that: include A transmission device (1) is used to transmit small packages of modified atmosphere; The bagging device (2) is used to fill small packages of modified atmosphere into outer packaging bags. It includes a bag clamping mechanism (23) for clamping the outer packaging bags, a bagging conveying mechanism (22) for conveying the bag clamping mechanism (23), and a feeder (24) for conveying the small packages of modified atmosphere. The bagging conveying mechanism (22) can convey the outer packaging bags clamped by the bag clamping mechanism (23) to the bottom of the hopper of the feeder (24). The packaging device (3) is used to vacuum seal the outer packaging bag containing the small package of modified atmosphere, including a sealing mold (33) that can be opened and closed, a clamping mechanism (35) for clamping the outer packaging bag, and a heat sealing mechanism (36) for heat sealing the outer packaging bag. The clamping mechanism (35) and the heat sealing mechanism (36) are both arranged inside the sealing mold (33). Bag transfer device (4) is used to transfer the outer packaging bag containing the small package of modified atmosphere to the clamping mechanism (35); The conveying device (1) is capable of conveying small packages of modified atmosphere to the hopper of the feeder (24); The sealing mold (33) includes a lower seat (331) and an upper cover (332) covering the lower seat (331). The packaging device (3) includes a mold closing mechanism (34). The mold closing mechanism (34) includes a mold base (341), a swing arm (343), a lifting cylinder (342), and a connecting arm (347). One end of the swing arm (343) is rotatable. The upper cover (332) is disposed on the other end of the swing arm (343). The lower seat (331) is hinged to the mold base (341). The cylinder body of the lifting cylinder (342) is rotatable. The end of the piston rod of the lifting cylinder (342) is hinged to one end of the lower seat (331). The two ends of the connecting arm (347) are respectively rotatably disposed on the piston rod of the lifting cylinder (342) and the swing arm (343). The packaging device (3) further includes a flattening mechanism (37), which includes a flattening plate (371) slidably disposed in the lower seat (331) and a flattening drive source (372) for driving the flattening plate (371) to reciprocate; The leveling drive source (372) is a cylinder whose cylinder body is fixed on the lower seat (331). The piston rod of the leveling drive source (372) passes through the lower seat (331) and is fixedly connected to the leveling plate (371). The leveling plate (371) is slidably disposed in the lower seat (331) along the extension and retraction direction of the piston rod of the leveling drive source (372). When the lower seat (331) rotates to a near-horizontal position, the extension and retraction direction of the piston rod of the leveling drive source (372) is nearly vertical. While the sealing mold (33) is being evacuated, the leveling drive source (372) drives the leveling plate (371) to reciprocate.

2. The intelligent production line for small-packaged modified atmosphere packaging of Chinese medicinal materials and finished grains according to claim 1, characterized in that: The mold closing mechanism (34) further includes a swing rod (344), a swing seat (345), and a hinge seat (346). The hinge seat (346) and the swing seat (345) are respectively hinged to both ends of the swing arm (343). The two ends of the swing rod (344) are respectively hinged to the hinge seat (346) and the swing seat (345). The swing seat (345) is connected to the upper cover (332).

3. The intelligent production line for small-packaged modified atmosphere packaging of Chinese medicinal materials and finished grains according to claim 1, characterized in that: The heat sealing mechanism (36) includes a heating block (362) and an elastic abutment block (361). When the upper cover (332) is closed on the lower seat (331), the abutment block (361) and the heating block (362) abut against each other. The clamping block (361) is disposed on the lower seat (331), and the heating block (362) is disposed on the upper cover (332).

4. The intelligent production line for small-packaged modified atmosphere packaging of Chinese medicinal materials and finished grains according to claim 1, characterized in that: The heat sealing mechanism (36) includes a heating block (362) and an elastic abutment block (361). When the upper cover (332) is closed on the lower seat (331), the abutment block (361) and the heating block (362) abut against each other. The heating block (362) is disposed on the lower seat (331), and the abutting block (361) is disposed on the upper cover (332).

5. The intelligent production line for small-packaged modified atmosphere packaging of Chinese medicinal materials and finished grains according to claim 1, characterized in that: The bagging device (2) further includes a sorting mechanism (25), which includes an upper sorting component (251) and a lower sorting component (252); The upper finishing component (251) includes a finishing hammer (2512) and an upper finishing drive source (2511) for driving the finishing hammer (2512) to reciprocate in the vertical direction; The lower sorting component (252) includes a sorting plate (2522) and a lower sorting drive source (2521) for driving the sorting plate (2522) to reciprocate in the vertical direction; The sorting plate (2522) is located below the sorting hammer (2512), and the bagging and conveying mechanism (22) can convey the outer packaging bag held by the bag clamping mechanism (23) to the area below the sorting hammer (2512) and above the sorting plate (2522).

6. The intelligent production line for small-packaged modified atmosphere packaging of Chinese medicinal materials and finished grains according to claim 5, characterized in that: The lower finishing assembly (252) further includes a shaking block (2523) and a shaking rod (2524). The shaking block (2523) has a movable hole (2525), and the shaking rod (2524) passes through the movable hole (2525). The diameter of the movable hole (2525) is larger than the diameter of the shaking rod (2524). One end of the shaking rod (2524) is connected to the finishing plate (2522). The lower finishing drive source (2521) is used to drive the shaking block (2523) to reciprocate in the vertical direction.

7. The intelligent production line for small-packaged modified atmosphere packaging of Chinese medicinal materials and finished grains according to claim 1, characterized in that: The transmission device (1) includes a main transmission mechanism (11), multiple auxiliary transmission mechanisms (12), multiple flow limiting mechanisms (13), and multiple filling boxes for loading small packages of modified atmosphere. The main transmission mechanism (11) includes a main conveyor belt (111) for transporting the filling boxes. The auxiliary transmission mechanisms (12) include multiple auxiliary conveyor belts (121) for transporting the filling boxes onto the main conveyor belt (111). The flow limiting mechanisms (13) and the auxiliary conveyor belts (121) are connected along the main conveyor belt. The conveying directions of the belt (111) are alternately arranged. The current limiting mechanism (13) includes a current limiting block (131) that is slidably arranged on the main conveyor belt (111) in the vertical direction and a current limiting drive source (132) that drives the current limiting block (131) to rise and fall. The current limiting block (131) can move its upper end to be above the roller of the main conveyor belt (111). The current limiting block (131) can also move itself to be below the upper end of the roller of the main conveyor belt (111).

8. The intelligent production line for small-packaged modified atmosphere packaging of Chinese medicinal materials and finished grains according to claim 7, characterized in that: The main transmission mechanism (11) includes a main return conveyor belt (112) and a main elevator (113). The main conveyor belt (111) is used to transfer the loading box to the main elevator (113), and the main elevator (113) is used to transfer the loading box to the main return conveyor belt (112). The secondary transmission mechanism (12) includes a secondary return conveyor belt (122) and a secondary elevator (123). The secondary return conveyor belt (122) is used to transfer the loading box to the secondary elevator (123), and the secondary elevator (123) is used to transfer the loading box to the secondary conveyor belt (121). The transmission device (1) also includes a plurality of return mechanisms (14) corresponding to the secondary return conveyor belt (122). The return mechanism (14) includes a blocking component (141) and a pushing component (142). The pushing assembly (142) includes a pushing block (1421) and a pushing drive source (1422). The pushing block (1421) is slidably disposed on the main return conveyor belt (112) along the transmission direction of the secondary return conveyor belt (122). The pushing drive source (1422) drives the pushing block (1421) to reciprocate. The pushing assembly (142) and the blocking assembly (141) are arranged along the transmission direction of the main return conveyor belt (112). The blocking assembly (141) includes a blocking block (1411) that is slidably disposed on the main return conveyor belt (112) in the vertical direction and a blocking drive source (1412) that drives the blocking block (1411) to rise and fall. The blocking block (1411) can move its upper end to be above the roller of the main return conveyor belt (112). The blocking block (1411) can also move itself to be below the upper end of the roller of the main return conveyor belt (112).

9. The intelligent production line for small-packaged modified atmosphere packaging of Chinese medicinal materials and finished grains according to claim 1, characterized in that: The transmission device (1) includes a main transmission mechanism (11) and a feeding mechanism (15). The main transmission mechanism (11) includes a main conveyor belt (111). The feeding mechanism (15) includes a feeding bucket (152) rotatably mounted on the main conveyor belt (111) and a clamping assembly (153) mounted on the feeding bucket (152). The feeding bucket (152) can be rotated to align one end with the hopper inlet of the feeder (24). The clamping assembly (153) includes a clamping hook (1532) and a clamping drive source (1531) for driving the clamping hook (1532) to move closer to the feeding bucket (152).

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