Experimental animal feed double-layer vacuum shaping automatic packaging method and packaging equipment

Abstract

The invention belongs to the technical field of packaging, and discloses an experimental animal feed double-layer vacuum shaping automatic packaging method and packaging equipment. The packaging equipment comprises two groups of first conveyors, two groups of second conveyors, two groups of lifting platforms, two groups of pushing assemblies, two groups of third conveyors, two groups of grabbing assemblies, two groups of fourth conveying mechanisms, two groups of sealing mechanisms and two groups of fifth conveying mechanisms which are arranged side by side, wherein the first conveyors, the second conveyors, the third conveyors, the fourth conveying mechanisms, the sealing mechanisms and the fifth conveying mechanisms are arranged in sequence. According to the double-layer vacuum shaping packaging machine, double-layer vacuum shaping packaging is met, automatic bag feeding, bag pushing and bagging and vacuumizing sealing of a second-layer packaging bag are achieved, the steps can be completed in one piece of equipment, the occupied space is saved, and the packaging efficiency is improved; meanwhile, the double-layer packaging bag achieves independent vacuum packaging, double protection is achieved, contamination of microorganisms in product contents is avoided, a flat packaging form is formed, the risk probability of bumping and bag breaking is reduced, and the bag breaking protection effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging, and relates to a double-layer vacuum packaging method, and in particular to a double-layer vacuum shaping automatic packaging method and packaging equipment for experimental animal feed. Background Art

[0002] SPF-grade experimental animal feed in vacuum packaging can reduce air oxidation and prevent the product from being contaminated by microorganisms in the environment, thus achieving the purpose of product preservation. However, the particles of experimental animal feed are hard. After vacuum packaging, it is easy for the product to break and leak due to friction and collision during transportation and handling. The objective factors affecting the transportation, handling, and loading and unloading processes are too complex. As a manufacturer of experimental animal feed, the cost of investment in management and control is too high, and the effect is limited. It is crucial to develop a packaging that can improve the product's ability to resist transportation and handling risks, as well as equipment to achieve automated packaging.

[0003] The common vacuum packaging products on the market currently have a packaging process of filling, vacuuming, and sealing. Experimental animal feed has its own particularity, with large particles, high hardness, and uneven and angular product surfaces. Conventional vacuum packages are prone to breakage and leakage. In order to reduce the breakage and leakage rate, double-layer vacuum packaging is used, but due to the irregular shape after traditional vacuuming, it is difficult to achieve automated packaging. Summary of the invention

[0004] In order to solve the technical problems of low automation level and easy breakage and leakage of vacuum bags in the existing vacuum packaging technology, the present invention proposes a double-layer vacuum shaping automated packaging method and packaging equipment for experimental animal feed, which effectively reduces the risk probability of bag breakage due to collision and improves the bag breakage protection effect.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The first aspect of the present invention is to provide a double-layer vacuum shaping automatic packaging equipment for experimental animal feed, comprising:

[0007] A first conveyor, wherein the first conveyor comprises two groups, arranged side by side on the left and right, and is used to convey the once-bagged experimental animal feed after once vacuum shaping packaging;

[0008] A second conveyor, wherein the second conveyor comprises two groups, which are arranged side by side at the tail end of the first conveyor and are used to receive and temporarily store the once-bagged experimental animal feed conveyed by the first conveyor;

[0009] A lifting platform, which is longitudinally arranged at the tail end of the two groups of the second conveyors, and is used to receive the once-bagged experimental animal feed conveyed by the second conveyors and lift it to a certain height;

[0010] A pushing assembly, which is transversely arranged between the two second conveyors, and has push plate mechanisms on its left and right sides, respectively, for pushing the once-bagged experimental animal feed lifted on the lifting platform into the second packaging bag on the downstream third conveyor;

[0011] The third conveyor comprises two groups of third conveyors, which are arranged side by side at the rear side of the lifting platform, and the front ends of the third conveyors are provided with open second packaging bags for receiving the first bagged experimental animal feed on the lifting platform to form the second bagged experimental animal feed;

[0012] A grabbing assembly, wherein the grabbing assembly includes two sets of bag-taking mechanisms, and the bag-taking mechanisms are connected to the mechanical arm and are used to grab the second packaging bag and transfer it to the front end of the third conveyor, and the bag mouth of the second packaging bag is arranged in an open shape toward the pushing assembly;

[0013] A fourth conveying mechanism, the fourth conveying mechanism is arranged longitudinally, and the left side of its front end is connected with the rear ends of the two groups of the third conveyors, and is used to receive the secondary bagged experimental animal feed on the third conveyors and convey it to the sealing mechanism position at the tail end;

[0014] Sealing mechanism, the sealing mechanism consists of two groups, which are arranged side by side on the right side of the tail end of the fourth conveying mechanism, and are used for vacuuming and sealing the opened secondary bag experimental animal feed respectively;

[0015] The fifth conveying mechanism consists of two groups, which are arranged side by side on the left side of the tail end of the fourth conveying mechanism and correspond to the two sealing mechanisms on the other side, and are used to convey the secondary bagged experimental animal feed after vacuuming and sealing to the next process.

[0016] Preferably, the second conveyor is a short conveyor belt, and its horizontal height is equal to or less than the horizontal height of the first conveyor.

[0017] Preferably, the lifting platform adopts a scissors-type, cylinder-type, crank-type or mast-type lifting platform. When it is at the lowest point, the left side is connected with the second conveyor; when it is at the highest point, the right side is connected with the third conveyor.

[0018] Preferably, the pusher assembly comprises a mounting frame, an X-axis moving mechanism and the push plate mechanism, wherein:

[0019] The mounting frame is a square frame structure, and both sides of the lower end thereof are fixedly mounted on a frame between the left and right first conveyors and / or the second conveyors;

[0020] The X-axis moving mechanism is movably installed in the installation frame, and the push plate mechanism is symmetrically installed on the left and right sides of the X-axis moving mechanism, so as to drive the push plate mechanism to move forward and backward;

[0021] The front end of the push plate mechanism is provided with two groups of first connecting rods of inverted F-shaped structure, the front end of the first connecting rod is provided with a retractable second connecting rod, the front end of the second connecting rod is vertically provided with a square push plate, and a buffer spring is sleeved thereon.

[0022] Preferably, the pusher assembly further includes a Z-direction moving mechanism, wherein:

[0023] The Z-direction moving mechanism can be installed in the installation frame in a lifting manner, and the X-direction moving mechanism is installed on it to drive the X-direction moving mechanism to adjust up and down.

[0024] Preferably, the pusher assembly further includes a Y-axis moving mechanism, wherein:

[0025] The Y-direction moving mechanism is composed of two groups, which are respectively installed on the left and right sides of the X-direction moving mechanism in a left-right symmetrical manner, and are used to drive the X-direction moving mechanism to adjust left and right.

[0026] Preferably, the level of the third conveyor is higher than that of the second conveyor and lower than that of the push plate mechanism above its front end.

[0027] Preferably, the grabbing assembly further comprises two groups of suction cups, each group comprising two suction cups, which are installed at intervals at the front end positions corresponding to the third conveyor, and are used to cooperate with the bag taking mechanism to open the bag opening of the second packaging bag.

[0028] Preferably, the grabbing assembly further comprises two sets of conveying mechanisms, which are respectively connected to the robotic arms and are used for secondary bagging the sealed experimental animal feed and transferring it to the corresponding fifth conveying mechanism.

[0029] Preferably, at least one first compressed air blowing nozzle is provided on one side wall of the lifting platform, the first compressed air blowing nozzle is externally connected to an air compressor, and the air outlet of the first compressed air blowing nozzle is directly opposite to the bag opening of the second packaging bag at the front end of the third conveyor when the lifting platform rises to a preset position.

[0030] More preferably, at least one second compressed air blowing nozzle is arranged directly above the connection position between the second conveyor belt and the lifting platform, the second compressed air blowing nozzle is externally connected to an air compressor, and the air outlet of the second compressed air blowing nozzle is arranged downward.

[0031] The second aspect of the present invention is to provide a double-layer vacuum shaping automated packaging method for experimental animal feed based on any of the packaging equipment described above, comprising the following steps:

[0032] (1) One-time bagging: The first packaging bag is bagged by a mold, filled with materials into a mold, mold-shaped, vacuumed, and sealed. After the single-layer vacuum shaping is completed, a one-time bagged experimental animal feed is obtained;

[0033] (2) Secondary bagging preparation: The bag taking mechanism cooperates with the robot arm to suck and transfer the second packaging bag to the third conveyor, and cooperates with the corresponding suction cup to open the opening at the front end of the second packaging bag into an open shape;

[0034] (3) Secondary bagging and lifting: The primary bagged experimental animal feed is transported to the lifting platform through the first conveyor and the second conveyor in sequence, and the lifting platform is started to lift the primary bagged experimental animal feed to a preset height;

[0035] (4) Secondary bagging: Start the push plate mechanism on the push assembly to move forward, push the primary bagged experimental animal feed on the lifting platform into the second packaging bag, and then release the negative pressure on the bag taking mechanism and the suction cup;

[0036] (5) Secondary bagging and sealing: Start the third conveying mechanism to convey the secondary bagged experimental animal feed in the open state to the fourth conveying mechanism, and start the fourth conveying mechanism to convey it to the sealing mechanism position at the tail end for vacuuming and sealing;

[0037] (6) Secondary bagging output: The transport mechanism cooperates with the robotic arm to transfer the bagged secondary bagged experimental animal feed to the fifth conveying mechanism, and the fifth conveying mechanism is started to transport it to the next process;

[0038] (7) Repeat the above steps (1) to (6), and the left and right packaging production lines are operated simultaneously to realize double-layer vacuum shaping automated packaging of experimental animal feed.

[0039] The present invention adopts the above technical solution, and has the following technical effects compared with the prior art:

[0040] The double-layer vacuum shaping automated packaging equipment for experimental animal feed provided by the present invention can meet the requirements of double-layer vacuum shaping packaging, realize automatic bagging of the second layer of packaging bags, push the bags into the bags, and vacuum seal. The above steps can be completed in one device, saving space, with a high degree of automation, and significantly improving packaging efficiency. At the same time, in order to ensure smooth secondary bagging of the product, the inner packaging bag opening is blown and arranged to make the inner and outer bags fit in size, which is more conducive to subsequent vacuuming and sealing, and also increases the aesthetics after packaging, ensuring the consistency of packaging. In summary, the double-layer vacuum shaping packaging structure prepared by the automated packaging equipment and the independent vacuum packaging of the double-layer packaging bags meet the requirements of double protection. As long as one layer of packaging is intact, the contamination of microorganisms in the product contents can be avoided. In addition, the shaping also shapes a flat packaging shape, reduces the risk probability of bumping and breaking the bag, and improves the bag breaking protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 The three-dimensional structure of a double-layer vacuum shaping automatic packaging equipment for experimental animal feed of the present invention is shown in FIG. Figure 1 ;

[0042] Figure 2 The three-dimensional structure of a double-layer vacuum shaping automatic packaging equipment for experimental animal feed of the present invention is shown in FIG. Figure 2 ;

[0043] Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure of part A of a double-layer vacuum shaping automated packaging equipment for experimental animal feed is shown;

[0044] Figure 4 For the present invention Figure 2 A schematic diagram of the partially enlarged structure of part B of a double-layer vacuum shaping automated packaging equipment for experimental animal feed is shown;

[0045] Figure 5 This is a schematic diagram of the main structure of a double-layer vacuum shaping automated packaging device for experimental animal feed according to the present invention;

[0046] Figure 6 This is a schematic diagram of the top view of a double-layer vacuum shaping automated packaging device for experimental animal feed according to the present invention;

[0047] Figure 7 For the present invention Figure 6 A schematic cross-sectional structure diagram of a double-layer vacuum shaping automated packaging device for experimental animal feed in the AA direction is shown;

[0048] Figure 8 The three-dimensional structure of the pusher assembly in the double-layer vacuum shaping automatic packaging equipment for experimental animal feed of the present invention is shown in FIG. Figure 1 ;

[0049] Fig. 9 The three-dimensional structure of the pusher assembly in the double-layer vacuum shaping automatic packaging equipment for experimental animal feed of the present invention is shown in FIG. Figure 2 ;

[0050] Fig.10 For the present invention Fig. 9 A schematic diagram of the partially enlarged structure of part C on a pusher assembly in a double-layer vacuum shaping automated packaging device for experimental animal feed is shown;

[0051] Fig.11 For the present invention Fig. 9 A schematic diagram of the partially enlarged structure of part D on a pusher assembly in a double-layer vacuum shaping automated packaging device for experimental animal feed is shown;

[0052] Fig.12 The three-dimensional structure of the pusher assembly in the double-layer vacuum shaping automatic packaging equipment for experimental animal feed of the present invention is shown in FIG. Figure 3 ;

[0053] Fig.13 This is a schematic diagram of the main structure of a material pushing component in a double-layer vacuum shaping automated packaging device for experimental animal feed according to the present invention;

[0054] Fig.14 It is a schematic cross-sectional view of a material pushing component in a double-layer vacuum shaping automated packaging device for experimental animal feed according to the present invention;

[0055] Fig.15 It is a right view structural schematic diagram of a material pushing component in a double-layer vacuum shaping automatic packaging device for experimental animal feed of the present invention;

[0056] Fig.16 It is a left-side structural schematic diagram of a material pushing component in a double-layer vacuum shaping automatic packaging device for experimental animal feed of the present invention;

[0057] Fig.17 It is a schematic diagram of the arrangement structure of the blowing nozzle in a double-layer vacuum shaping automatic packaging equipment for experimental animal feed of the present invention;

[0058] Fig.18 The present invention is a schematic structural diagram of a shaping mechanism in a double-layer vacuum shaping automated packaging device for experimental animal feed. DETAILED DESCRIPTION

[0059] The present invention is described in detail and specifically by specific examples below to provide a better understanding of the present invention, but the following examples do not limit the scope of the present invention.

[0060] In some embodiments, Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, a double-layer vacuum shaping automatic packaging equipment for experimental animal feed is provided, which mainly includes a first conveyor 100, a second conveyor 200, a lifting platform 300, a pushing assembly 400, a third conveyor 500, a grab assembly 600, a fourth conveying mechanism 700, a sealing mechanism 800 and a fifth conveying mechanism 900 arranged in sequence. Among them, the first conveyor 100, the second conveyor 200, the third conveyor 500, the fourth conveying mechanism 700, the sealing mechanism 800 and the fifth conveying mechanism 900 are arranged in two groups side by side to form a double production line structure, which greatly improves the packaging efficiency of the experimental animal feed.

[0061] Specifically, the first conveyor 100 is composed of two groups, arranged side by side on the left and right, and is used to convey the once-bagged experimental animal feed after the first vacuum shaping packaging. The first conveyor 100 adopts a long conveyor belt, and a bagging mold, a material filling mold, a shaping mold, a vacuuming and sealing device are arranged upstream thereof, which is used to vacuum pack the material for the first time. The first conveyor 100 is in a long running state during use, and is used to convey the once-bagged experimental animal feed to the second conveyor 200 one by one, and its conveying speed is determined according to the bagging feeding rate of the lifting platform 300, the grabbing assembly 600 and the pushing assembly 400. Alternating continuous operation is realized.

[0062] The second conveyor 200 is composed of two groups, arranged side by side at the tail end of the first conveyor 100, and is used to receive and temporarily store the once-bagged experimental animal feed delivered by the first conveyor 100. The second conveyor 200 uses a short conveyor belt, which runs and pauses at intervals as needed. When in use, the second conveyor 200 cooperates with the lifting platform 300 to run or pause, so as to stop the forward conveyance of the received once-bagged experimental animal feed, and then starts again after the lifting platform 300 descends and resets, so as to transfer the once-bagged experimental animal feed to the lifting platform 300.

[0063] In order to avoid the second conveyor 200 from colliding with the pushing assembly 400 above when conveying the bagged experimental animal feed and to achieve the purpose of avoiding the pushing assembly 400, the second conveyor 200 and the third conveyor 500 at the upstream and downstream are arranged in an up-and-down staggered manner, and the lifting platform 300 is set between the second conveyor 200 and the third conveyor 500 to realize the transfer of the bagged experimental animal feed.

[0064] The lifting platform 300 is longitudinally arranged at the tail end of the two groups of the second conveyors 200, and is used to receive the once-bagged experimental animal feed transported from the second conveyor 200 and lift it to a certain height, and cooperate with the pushing assembly 400 to push the once-bagged experimental animal feed lifted on the lifting platform 300 into the second packaging bag at the front end of the third conveyor 500 to realize the bagging action.

[0065] In order to realize the secondary packaging of the left and right production lines simultaneously and improve the production efficiency, the pushing assembly 400 is symmetrically arranged, and the left and right sides thereof are respectively provided with a pushing plate mechanism 450. The pushing assembly 400 is transversely arranged between the two second conveyors 200, and can be used to simultaneously push the primary bagged experimental animal feed lifted on the left and right ends of the lifting platform 300 into the second packaging bag on the downstream third conveyor 500.

[0066] The third conveyor 500 is composed of two groups, arranged side by side at the rear side of the lifting platform 300, and the front end thereof is provided with an open second packaging bag, which is used to receive the first bagged experimental animal feed on the lifting platform 300 to form a second bagged experimental animal feed. The level of the third conveyor 500 is higher than the level of the second conveyor 200, and lower than the level of the push plate mechanism 450 above the front end thereof. The third conveyor 500, like the second conveyor 200, uses a short conveyor belt, and runs and pauses at intervals as needed, so as to cyclically switch between the bagging action and the conveying action.

[0067] In order to achieve secondary bagging, the grabbing assembly 600 is used to grab the second packaging bag in advance. The grabbing assembly 600 includes two sets of bag picking mechanisms 610, which are connected to the robot arm to form a conventional vacuum suction cup manipulator for grabbing the second packaging bag and transferring it to the front end of the third conveyor 500. The grabbing assembly 600 cooperates with the suction cup 620 at the front end of the third conveyor 500 to open the bag opening of the second packaging bag, and the bag opening of the second packaging bag is arranged in an open shape toward the pushing assembly 400, and is aligned with the primary bagging experimental animal feed on the lifting platform 300.

[0068] The fourth conveying mechanism 700 is arranged longitudinally, and its front and rear ends are respectively used to connect the third conveyor 500 and the fifth conveying mechanism 900 to achieve continuous transfer of materials.

[0069] The left side of the front end is connected with the rear ends of the two sets of the third conveyors 500, and is used to receive the secondary bagged experimental animal feed on the third conveyors 500 and convey it to the sealing mechanism 800 at the tail end. The sealing mechanism 800 is used to vacuum and seal the secondary bagged experimental animal feed. The fourth conveying mechanism 700 also adopts interval operation and pause operation as needed to alternately realize the conveying and sealing of materials.

[0070] The sealing mechanism 800 adopts a conventional commercially available heat sealer, which consists of two groups, arranged side by side on the right side of the tail end of the fourth conveying mechanism 700, and arranged opposite to the fifth conveying mechanism 900, and are respectively used for vacuuming and sealing the opened secondary bagged experimental animal feed.

[0071] The fifth conveying mechanism 900 serves as the output mechanism of the equipment. It consists of two groups, which are arranged side by side on the left and right sides of the tail end of the fourth conveying mechanism 700, and are arranged corresponding to the two sealing mechanisms 800 on the other side, and are used to convey the secondary bagged experimental animal feed after vacuuming and sealing to the next process.

[0072] In some of the embodiments, Figure 5 , Figure 6 and Figure 7 As shown, as a buffering platform for the once-bag experimental animal feed, the second conveyor 200 uses a short conveyor belt and can only store one once-bag experimental animal feed at a time. In order to achieve a stable transfer of the once-bag experimental animal feed between the first conveyor 100 and the second conveyor 200, the horizontal height of the second conveyor 200 is designed to be equal to or less than the horizontal height of the first conveyor 100.

[0073] In some of the embodiments, Figure 2 , Figure 5 and Figure 7 As shown, the lifting platform 300 is used as a lifting mechanism for the single-bag experimental animal feed, and it can adopt a scissor-type, cylinder-type, crank-arm or mast-type lifting platform as needed. The installation requirements of the lifting platform 300 are as follows: when the lifting platform 300 descends to the lowest point, its left side is connected with the second conveyor 200, so that the single-bag experimental animal feed on it can be transported to the lifting platform 300 by starting the second conveyor 200. When the lifting platform 300 rises to the highest point, its right side is connected with the third conveyor 500, so that the single-bag experimental animal feed on the lifting platform 300 can be pushed into the second packaging bag in cooperation with the pushing assembly 400.

[0074] It is worth noting that the lifting height of the lifting platform 300 is further adjusted as needed, so that when the lifting platform 300 rises to the highest point, its horizontal height is higher than the horizontal height of the third conveyor 500. This facilitates the formation of a height difference between the lifting platform 300 and the third conveyor 500 on one side, and facilitates the second packaging bag to be opened and adsorbed in place, avoiding the bottom of the first bagged experimental animal feed from scraping the bottom of the second packaging bag opening during the pushing process, so that the secondary bagging can be carried out smoothly.

[0075] In some of the embodiments, Figure 8 , Fig. 9 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16 As shown, the pusher assembly 400 mainly includes a mounting frame 410, an X-direction moving mechanism 430 and the pusher mechanism 450. As required, a Z-direction moving mechanism 420 and a Y-direction moving mechanism 440 may also be provided to achieve three-dimensional adjustment of the pusher mechanism 450 to meet different packaging requirements.

[0076] The mounting frame 410 is a square frame structure, and the lower ends of the mounting frame 410 are fixedly mounted on the racks between the first conveyor 100 and / or the second conveyor 200. The mounting frame 410 includes a bottom plate 411, a top plate 412, a left connecting square tube 413, and a right connecting square tube 414, and the bottom plate 411 and the top plate 412 are arranged in parallel up and down.

[0077] Specifically, the left ends of the bottom plate 411 and the top plate 412 are welded together using two left connecting square tubes 413 arranged at intervals, and the right ends are welded together using two right connecting square tubes 414 arranged at intervals, forming a square steel frame structure as a whole, providing a stable installation foundation for the installation of the X-axis moving mechanism 430 and the push plate mechanism 450.

[0078] The X-axis moving mechanism 430 can be movably installed in the installation frame 410, and the push plate mechanism 450 is symmetrically installed on the left and right sides thereof, for driving the push plate mechanism 450 to move forward and backward, so as to accurately push the once-bagged experimental animal feed on the lifting platform 300 into the second packaging bag on the third conveyor 500.

[0079] Specifically, the X-axis moving mechanism 430 mainly includes a first screw rod 431, a first I-shaped guide rail 432, a first fixed mounting frame 433, a first guide wheel 434, a first nut 435, a first fixed connection block 436, a nut gear 437, and a first driving motor 438. The first I-shaped guide rail 432 is two first I-shaped guide rails 432 that are spaced apart from each other and fixedly mounted in the mounting frame 410. The first screw rod 431 is transversely mounted in the mounting frame 410 and is located between the upper and lower first I-shaped guide rails 432. The top and bottom ends of the first fixed mounting frame 433 are slidably mounted in the grooves of the first I-shaped guide rail 432 through a plurality of first guide wheels 434.

[0080] The first screw rod 431 is provided with a first nut 435, one end of the first nut 435 is connected to the push plate mechanism 450 on both sides through a bearing via the first fixed mounting frame 433, and the other end is connected to the first driving motor 438 by a chain through a nut gear 437. When in use, the first driving motor 438 is started to drive the first nut 435 to move forward and backward on the first screw rod 431, and then drive the push plate mechanism 450 to move forward and backward.

[0081] like Figure 4 , Fig. 9 and Fig.14 As shown, the push plate mechanism 450 includes two groups of connecting plates 451 arranged symmetrically on the left and right, a connecting bracket 452, a first connecting rod 453, a second connecting rod 454, a square push plate 455 and a buffer spring 456. The connecting plate 451 is fixedly mounted on the X-direction moving mechanism 430 or the Y-direction moving mechanism 440 by bolts, and is an integral structure with the connecting bracket 452.

[0082] The front end of the connecting bracket 452 is provided with two sets of first connecting rods 453 of inverted F-shaped structure, the front end of the first connecting rod 453 is provided with a retractable second connecting rod 454, and the front end of the second connecting rod 454 is vertically provided with a square push plate 455, and a buffer spring 456 is sleeved on it. When the primary bagged experimental animal feed is pushed forward, the square push plate 455 is subjected to a reverse force and relatively moves in the reverse direction. Under the buffering effect of the buffer spring 456, the impact force on the primary bagged experimental animal feed can be effectively reduced, ensuring the smooth secondary bagging.

[0083] As a preferred embodiment thereof, Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16As shown, in order to achieve the up and down adjustment of the push plate mechanism 450, the push assembly 400 also includes a Z-direction moving mechanism 420. The Z-direction moving mechanism 420 can be installed in the installation frame 410, and the X-direction moving mechanism 430 is installed thereon to drive the X-direction moving mechanism 430 to adjust up and down.

[0084] Specifically, the Z-direction moving mechanism 420 mainly includes a first vertical guide rail 421, a second vertical guide rail 422, a second vertical sliding frame 423, a second guide wheel 424, a first vertical sliding frame 425, an active walking wheel 426, a driven walking wheel 427, a second driving motor 428, and a limit block 429. The first vertical guide rail 421 and the second vertical guide rail 422 are respectively vertically and fixedly installed at both ends of the mounting frame 410, and the upper and lower ends and the middle part thereof are respectively connected to the first I-shaped guide rail 432 and the first screw rod 431.

[0085] The side wall of the second vertical sliding frame 423 is slidably mounted in the groove of the first vertical guide rail 421 through a plurality of second guide wheels 424 arranged at intervals. The first vertical guide rail 421 adopts an I-shaped channel steel structure. The lower end and the upper end of the first vertical sliding frame 425 at the other end are slidably mounted on the first vertical guide rail 421 through active running wheels 426 and driven running wheels 427, respectively. The active running wheels 426 are connected to the second driving motor 428. The upper and lower ends of the first vertical sliding frame 425 are movably mounted on the first vertical guide rail 421 by limiting blocks 429.

[0086] When in use, starting the second drive motor 428 can drive the active walking wheel 426 to move up and down on the first vertical guide rail 421, thereby driving the X-direction moving mechanism 430 installed thereon to move up and down, and then driving the push plate mechanism 450 installed on the X-direction moving mechanism 430 to adjust up and down.

[0087] As another preferred embodiment, Figure 8 , Fig. 9 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16 As shown, in order to achieve the left-right adjustment of the push plate mechanism 450, the push assembly 400 further includes a Y-direction moving mechanism 440. The Y-direction moving mechanism 440 is composed of two groups, which are symmetrically installed on the left and right sides of the X-direction moving mechanism 430, respectively, for driving the X-direction moving mechanism 430 to adjust left and right.

[0088] Specifically, the Y-axis moving mechanism 440 mainly includes two groups of first U-shaped brackets 441, second U-shaped brackets 442, third guide wheels 443, ball nuts 444, seat bearings 445, third drive motors 446, and third screw rods 447, which are arranged symmetrically on both sides. The inner end of the first U-shaped bracket 441 is fixedly mounted on the first fixed mounting frame 433 by bolts. The top and bottom of the second U-shaped bracket 442 can be slidably mounted in the U-shaped grooves at the top and bottom of the first U-shaped bracket 441 through a plurality of third guide wheels 443, and can be telescopically slid along the length direction of the first U-shaped bracket 441 under the action of external force. A corresponding push plate mechanism 450 is installed on the first U-shaped bracket 441.

[0089] In order to realize the automatic extension and retraction of the first U-shaped bracket 441, the third screw rod 447 is installed at the outer end of the first U-shaped bracket 441 by using an L-shaped mounting plate. A ball nut 444 is sleeved on the other end of the third screw rod 447, and both ends of the ball nut 444 are fixedly installed on the first U-shaped bracket 441 by using seat bearings 445. The gear at one end of the ball nut 444 is connected to the third drive motor 446 through a chain. When in use, the third drive motor 446 is started, and the third screw rod 447 can be driven to move forward and backward through the rotation of the ball nut 444, thereby realizing the adjustment of the longitudinal direction of the push plate mechanism 450.

[0090] In some of the embodiments, Figure 1 , Figure 3 , Figure 5 and Figure 7 As shown, the grab assembly 600 cooperates with the bag taking mechanism 610 to open the second packaging bag. The grab assembly 600 also includes two groups of suction cups 620, each group of two, which are installed at intervals at the front end position corresponding to the third conveyor 500, and are used to cooperate with the bag taking mechanism 610 to open the bag mouth of the second packaging bag.

[0091] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the grabbing assembly 600 also includes two sets of transport mechanisms 630, which are respectively connected to the robotic arms and are used to bag the experimental animal feed after sealing and transfer it to the corresponding fifth conveying mechanism 900. Similar to the bag taking mechanism 610, the transport mechanism 630 is connected to the robotic arm to form a conventional vacuum suction cup type robot.

[0092] As a preferred embodiment thereof, Figure 5 and Fig.17As shown, in order to ensure the smooth secondary bagging of the product, at least one first compressed air blowing nozzle 301 is provided on one side wall of the lifting platform 300, and the first compressed air blowing nozzle 301 is connected to an external air compressor through a connecting pipe and a solenoid valve. When the lifting platform 300 rises to a preset position, the air outlet of the first compressed air blowing nozzle 301 faces the bag opening of the second packaging bag at the front end of the third conveyor 500, so as to blow air into the second packaging bag, blow and arrange the opening of the second packaging bag, so that the inner and outer bags are in the same size, which is more conducive to subsequent vacuuming and sealing, and also increases the aesthetics after packaging, ensuring the consistency of packaging.

[0093] As a preferred embodiment thereof, Figure 5 As shown, at least one second compressed air blowing nozzle 302 is arranged directly above the connection position between the second conveyor belt 200 and the lifting platform 300. The second compressed air blowing nozzle 302 is externally connected to an air compressor, and the air outlet of the second compressed air blowing nozzle is arranged downward. Its purpose is to blow the flat bag mouth of the once bagged feed to the bottom when the once bagged feed passes through the connection position between the second conveyor belt 200 and the lifting platform 300, so as to facilitate the subsequent second bagging.

[0094] As a preferred embodiment thereof, Fig.18 As shown, the first bagged experimental animal feed is shaped and arranged so that the product appearance has a regular and uniform rectangular shape, solving the limitation of the automated fitting bagging, vacuum and sealing process due to different sizes and irregular shapes. The first shaping plate 001 and the second shaping plate 002 are respectively set on the corresponding downstream conveyor or the upstream primary packaging conveyor 000. The first shaping plate 001 and the second shaping plate 002 are used to shape and arrange the first bagged experimental animal feed.

[0095] The first shaping platen 001 is arranged obliquely and is set upstream. The first shaping platen 001 is two symmetrically installed on both sides of the conveyor belt, and is telescopically installed on the racks on both sides of the conveyor using the first telescopic cylinder 002. The second shaping platen 002 is designed as an isosceles structure. There are two of them, which are symmetrically installed on both sides of the conveyor belt, and are telescopically installed on the racks on both sides of the conveyor using the second telescopic cylinder 003.

[0096] When in use, the first telescopic cylinder 002 is activated to adjust the distance between the two first shaping plates 001, so as to achieve flexible adjustment of the shaping entrance between the first shaping plates 001. At the same time, the second telescopic cylinder 003 is activated to squeeze and shape the first bagged experimental animal feed transferred between the two second shaping plates 002. The shaped bagged experimental animal feed has a flat packaging shape, which reduces the risk of bumping and breaking the package, and improves the protection effect of breaking the package.

[0097] In addition, based on Figures 1 to 16 The packaging equipment shown provides a double-layer vacuum shaping automatic packaging method for experimental animal feed, which specifically includes the following steps:

[0098] (1) One-time bagging: The first packaging bag is bagged by a mold, filled with materials into a mold, mold-shaped, vacuumed, and sealed. After the single-layer vacuum shaping is completed, a one-time bagged experimental animal feed is obtained;

[0099] (2) Secondary bagging preparation: The bag taking mechanism 610 cooperates with the robot arm to suck and transfer the second packaging bag to the third conveyor 500, and cooperates with the corresponding suction cup 620 to open the opening at the front end of the second packaging bag into an open shape;

[0100] (3) Secondary bagging and lifting: The primary bagged experimental animal feed is transported to the lifting platform 300 through the first conveyor 100 and the second conveyor 200 in sequence, and the lifting platform 300 is started to lift the primary bagged experimental animal feed to a preset height;

[0101] (4) Secondary bagging: Start the push plate mechanism 450 on the pushing assembly 400 to move forward, push the primary bagged experimental animal feed on the lifting platform 300 into the second packaging bag, and then release the negative pressure on the bag taking mechanism 610 and the suction cup 620;

[0102] (5) Secondary bagging and sealing: Start the third conveying mechanism 500 to convey the secondary bagged experimental animal feed in the open state to the fourth conveying mechanism 700, and start the fourth conveying mechanism 700 to convey it to the sealing mechanism 800 at the tail end for vacuuming and sealing;

[0103] (6) Secondary bagging output: The transport mechanism 630 cooperates with the robotic arm to transfer the bagged secondary bagged experimental animal feed to the fifth conveying mechanism 900, and the fifth conveying mechanism 900 is started to convey it to the next process;

[0104] (7) Repeat the above steps (1) to (6), and the left and right packaging production lines are operated simultaneously to realize double-layer vacuum shaping automated packaging of experimental animal feed.

[0105] In summary, the packaging process of the double-layer vacuum shaping automated packaging method for experimental animal feed is as follows: the first layer undergoes mold bagging, material mold filling, mold shaping, vacuuming, and sealing. After the single-layer vacuum shaping is completed, it undergoes secondary bagging, vacuuming, and sealing to complete the double-layer vacuum shaping packaging. According to needs, the product appearance is shaped into a regular and uniform rectangular shape through shaping, which solves the problem of the automated fitting bagging, vacuuming, and sealing processes that are limited by different sizes and irregular shapes.

[0106] The original double-layer vacuum-molded packaging structure of the present invention realizes double protection. As long as one layer of packaging is intact, the contamination of microorganisms in the product contents can be avoided. In addition, the shaping also creates a flat packaging shape, reducing the risk of bumping and breaking the package and improving the protection effect against package breakage.

[0107] The specific embodiments of the present invention are described in detail above, but they are only examples, and the present invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions made to the present invention are also within the scope of the present invention. Therefore, the equalization changes and modifications made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.

Claims

1. A double-layer vacuum shaping automatic packaging equipment for experimental animal feed, characterized in that: include: A first conveyor (100), wherein the first conveyor (100) comprises two groups, arranged side by side on the left and right, and is used to convey the once-bagged experimental animal feed that has been once vacuum-formed and packaged; A second conveyor (200), wherein the second conveyor (200) is composed of two groups, arranged side by side on the left and right sides at the tail end position corresponding to the first conveyor (100), and is used to receive and temporarily store the once-bagged experimental animal feed conveyed by the first conveyor (100); A lifting platform (300), the lifting platform (300) is longitudinally arranged at the rear end of the two groups of the second conveyors (200), and is used to receive the once-bagged experimental animal feed conveyed by the second conveyors (200) and lift it to a certain height; A material pushing assembly (400), the material pushing assembly (400) is transversely arranged between the two second conveyors (200), and a push plate mechanism (450) is respectively arranged on the left and right sides thereof, for pushing the once bagged experimental animal feed lifted on the lifting platform (300) into the second packaging bag on the downstream third conveyor (500); The third conveyor (500) is composed of two groups, which are arranged side by side on the left and right sides at the rear side of the lifting platform (300), and the front ends of the third conveyors (500) are provided with open second packaging bags one by one, and are used to receive the primary bagged experimental animal feed on the lifting platform (300) to form secondary bagged experimental animal feed; A grabbing assembly (600), the grabbing assembly (600) comprising two sets of bag taking mechanisms (610), the bag taking mechanisms (610) being connected to the robot arm and used for grabbing the second packaging bag and transferring it to the front end of the third conveyor (500), with the bag opening of the second packaging bag being arranged in an open shape toward the pushing assembly (400); A fourth conveying mechanism (700), the fourth conveying mechanism (700) is arranged longitudinally, and the left side of its front end is connected to the rear ends of the two groups of the third conveyors (500), and is used to receive the secondary bagged experimental animal feed on the third conveyors (500) and convey it to the sealing mechanism (800) at the tail end; Sealing mechanisms (800), the sealing mechanisms (800) are in two groups, arranged side by side on the right side of the tail end of the fourth conveying mechanism (700), and are used to perform vacuuming and sealing processing on the opened secondary bagged experimental animal feed respectively; The fifth conveying mechanism (900) is composed of two groups, which are arranged side by side on the left side of the tail end of the fourth conveying mechanism (700), and are arranged corresponding to the two sealing mechanisms (800) on the other side, and are used to convey the secondary bagged experimental animal feed after vacuuming and sealing to the next process.

2. The double-layer vacuum shaping automatic packaging equipment for experimental animal feed according to claim 1 is characterized in that: The second conveyor (200) is a short conveyor belt, and its horizontal height is equal to or less than the horizontal height of the first conveyor (100).

3. The double-layer vacuum shaping automatic packaging equipment for experimental animal feed according to claim 1 is characterized in that: The lifting platform (300) is a scissor-type, cylinder-type, crank-arm or mast-type lifting platform. When it is at the lowest point, the left side is connected to the second conveyor (200); when it is at the highest point, the right side is connected to the third conveyor (500).

4. The double-layer vacuum shaping automatic packaging equipment for experimental animal feed according to claim 1 is characterized in that: The pusher assembly (400) comprises a mounting frame (410), an X-direction moving mechanism (430) and the push plate mechanism (450), wherein: The installation frame (410) is a square frame structure, and both sides of its lower end are fixedly installed on the frame between the left and right first conveyors (100) and / or the second conveyors (200); The X-direction moving mechanism (430) is movably installed in the installation frame (410), and the push plate mechanism (450) is symmetrically installed on the left and right sides thereof, respectively, for driving the push plate mechanism (450) to move forward and backward; The front end of the push plate mechanism (450) is provided with two groups of first connecting rods (453) of an inverted F-shaped structure, the front end of the first connecting rod (453) is provided with a retractable second connecting rod (454), and the front end of the second connecting rod (454) is vertically provided with a square push plate (455) and a buffer spring (456) is sleeved thereon.

5. The double-layer vacuum shaping automatic packaging equipment for experimental animal feed according to claim 4 is characterized in that: The pusher assembly (400) further comprises a Z-direction moving mechanism (420), wherein: The Z-direction moving mechanism (420) is installed in the installation frame (410) in a liftable manner, and the X-direction moving mechanism (430) is installed thereon, for driving the X-direction moving mechanism (430) to adjust up and down.

6. The double-layer vacuum shaping automatic packaging equipment for experimental animal feed according to claim 4 is characterized in that: The pusher assembly (400) further comprises a Y-direction moving mechanism (440), wherein: The Y-direction moving mechanism (440) consists of two groups, which are respectively installed on the left and right sides of the X-direction moving mechanism (430) in a left-right symmetrical manner, and are used to drive the X-direction moving mechanism (430) to adjust left and right.

7. The double-layer vacuum shaping automatic packaging equipment for experimental animal feed according to claim 1 is characterized in that: The level of the third conveyor (500) is higher than the level of the second conveyor (200), and lower than the level of the push plate mechanism (450) above its front end.

8. The double-layer vacuum shaping automatic packaging equipment for experimental animal feed according to claim 1 is characterized in that: The grabbing assembly (600) further includes two groups of suction cups (620), each group consisting of two suction cups, which are installed at intervals at the front end positions corresponding to the third conveyor (500) and are used to cooperate with the bag taking mechanism (610) to open the bag mouth of the second packaging bag.

9. The double-layer vacuum shaping automatic packaging equipment for experimental animal feed according to claim 1, characterized in that: The grabbing assembly (600) further comprises two sets of transport mechanisms (630), which are respectively connected to the robotic arms and are used to bag the experimental animal feed for the second time after sealing, and transfer it to the corresponding fifth conveying mechanism (900).

10. A double-layer vacuum shaping automated packaging method for experimental animal feed based on the packaging equipment according to any one of claims 1 to 9, characterized in that: The steps include: (1) One-time bagging: The first packaging bag is bagged by a mold, filled with materials into a mold, mold-shaped, vacuumed, and sealed. After the single-layer vacuum shaping is completed, a one-time bagged experimental animal feed is obtained; (2) Secondary bagging preparation: using the bag taking mechanism (610) in cooperation with the robot arm to suck and transfer the second packaging bag to the third conveyor (500), and cooperating with the corresponding suction cup (620) to open the opening at the front end of the second packaging bag into an open shape; (3) Secondary bagging and lifting: The primary bagged experimental animal feed is transported to the lifting platform (300) via the first conveyor (100) and the second conveyor (200) in sequence, and the lifting platform (300) is started to lift the primary bagged experimental animal feed to a preset height; (4) Secondary bagging: Start the push plate mechanism (450) on the pushing assembly (400) to move forward, push the primary bagged experimental animal feed on the lifting platform (300) into the second packaging bag, and then release the negative pressure on the bag taking mechanism (610) and the suction cup (620); (5) Secondary bagging and sealing: starting the third conveying mechanism (500) to convey the secondary bagged experimental animal feed in an open state to the fourth conveying mechanism (700), and starting the fourth conveying mechanism (700) to convey it to the sealing mechanism (800) at the tail end for vacuuming and sealing; (6) Secondary bagging output: The transport mechanism (630) cooperates with the robotic arm to transfer the bagged secondary bagged experimental animal feed to the fifth conveying mechanism (900), and the fifth conveying mechanism (900) is started to convey it to the next process; (7) Repeat the above steps (1) to (6), and the left and right packaging production lines are operated simultaneously to realize double-layer vacuum shaping automated packaging of experimental animal feed.

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