Meat ball automatic metering vacuum packaging production line

Abstract

The invention discloses an automatic metering and vacuum packaging production line for meatballs, which comprises a lifting belt, a combined scale packaging device, a vacuum sealing device, a detection conveying device and a control unit, a combined scale is arranged between the packaging device and the lifting belt, and the lifting belt lifts and conveys the meatballs into the combined scale; the combined scale is used for weighing balls and feeding the balls into the packaging device for bagging, the vacuum sealing device is arranged on one side of the packaging device, the detection conveying device is arranged on one side of the vacuum sealing device, and the vacuum sealing device is used for vacuumizing and sealing packaging bags filled with the balls on the packaging device. And the lifting belt, the combined scale, the packaging device, the vacuum sealing device and the detection conveying device are electrically connected with the control unit. The meatball packaging machine is high in automation degree, meatball conveying, metering and packaging are integrated on one production line, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging machines, in particular to an automatic metering vacuum packaging production line for meatballs. Background Art

[0002] The current market mostly relies on manual counting, bagging and boxing, which is slow and causes mental and physical fatigue during long hours of work, resulting in inaccurate counting. Packaging is mainly produced and processed manually and cannot be automated. In the process of manual bag opening, counting and sealing, there are disadvantages such as over-packing, under-packing and unsightly sealing. In order to achieve weighing and mixing of multiple materials, the conventional solution is to install a dividing device on the combination scale to transport and weigh them separately, and then mix them according to demand. However, because the shape, quality and adhesion of each material are different, such as meatballs, which have good shape and fluidity, the meatballs at the end of the linear vibration plate are easy to roll into the hopper together during the vibration process, resulting in different numbers of meatballs in each hopper, which is prone to measurement errors and requires the meatballs to be recycled for measurement, which is time-consuming and inefficient. Summary of the Invention

[0003] The technical problem to be solved by the embodiments of the present invention is to provide a meatball automatic metering vacuum packaging production line, which has a high degree of automation and realizes the integration of meatball transportation, metering and packaging into one production line, making the metering more accurate and greatly improving the production efficiency.

[0004] To achieve the above-mentioned purpose, the present invention discloses an automatic metering vacuum packaging production line for meatballs, comprising a lifting belt, a combination weigher, a packaging device, a vacuum sealing device, a detection and conveying device, and a control unit. The combination weigher is arranged between the packaging device and the lifting belt, and the control unit controls the lifting belt to lift the formed meatballs and feed them into the combination weigher. The combination weigher comprises an upper feed hopper, a weighing mechanism, and a discharge hopper, which are connected to each other from top to bottom. A main vibrating plate is arranged below the discharge port of the upper feed hopper, a guide slot for the meatballs to flow out is provided between the main vibrating plate and the upper feed hopper, and a wire vibrating plate is arranged between the guide slot and the weighing mechanism. The control unit controls a wire vibration driving device to drive the wire vibrating plate to vibrate and transfer the meatballs from the guide slot to the weighing mechanism. The weighing mechanism includes a storage hopper, a weighing hopper, and a mounting frame. The storage hopper is arranged below the end of the wire vibrating plate, and the weighing hopper is arranged below the storage hopper. The storage hopper and the weighing hopper are respectively hung on the peripheral wall of the mounting frame. The storage hopper is used to temporarily store the meatballs sent out by the wire vibrating plate, and the control unit controls the storage hopper to put the meatballs into the empty weighing hopper for weighing, and to put the weighed meatballs into the discharge hopper, so that the discharge hopper can send the weighed meatballs into the packaging device for bagging. The vacuum sealing device is arranged on one side of the packaging device, and the detection and conveying device is arranged on one side of the vacuum sealing device. The control unit controls the vacuum sealing device to vacuum-seal the packaging bag loaded with meatballs on the packaging device, and then conveys the sealed packaging bag to the detection and conveying device. A flow limiting mechanism is movably provided above the discharge end of the linear vibrating plate, and the meatballs on the linear vibrating plate are made to fall evenly into the weighing mechanism through the flow limiting mechanism; Among them, the current limiting mechanism includes a current limiting plate, which is made of flexible material. A support ring frame is set above the weighing mechanism. The current limiting plate is provided with a connecting head fixedly connected to the support ring frame, and a limiting seat is provided on the support ring frame for limiting cooperation with the connecting head.

[0005] Furthermore, the packaging device includes a turntable, a bag feeding mechanism, a bag opening mechanism, and a filling mechanism. Several bag clamping mechanisms are arranged on the periphery of the turntable for clamping the packaging bags delivered by the bag feeding mechanism and sending the packaging bags in sequence through the bag opening mechanism, filling mechanism, and vacuum sealing device under the rotation of the turntable.

[0006] Furthermore, the bag feeding mechanism includes a bag warehouse, a bag suction nozzle, and a bag feeding mechanism. Several packaging bags are stacked on the bag warehouse. The bag suction nozzle can be raised and lowered above the bag warehouse to suck up the top packaging bags on the bag warehouse. The bag feeding mechanism is arranged between the bag suction nozzle and the turntable so that the bag feeding mechanism clamps the packaging bags on the bag suction nozzle and provides them for the bag clamping mechanism to clamp. A bag pressing mechanism is provided above the head end of the bag warehouse to press the packaging bags on the bag warehouse.

[0007] Furthermore, the bag pressing mechanism includes a pressure rod, one end of which is fixed with a swing seat, the swing seat is rotatably connected to the bag storage, and an elastic component is provided between the swing seat and the bag storage, so that the pressure rod can press the packaging bag on the bag storage under the elastic action of the elastic component.

[0008] Furthermore, the mounting frame is provided with a buffer drive device for linking the opening and closing of the buffer baffle plate of the storage hopper, and the mounting frame is also provided with a weighing drive device for linking the opening and closing of the weighing baffle plate of the weighing hopper. A weighing detection module is provided in the mounting frame for detecting the weight of the meatballs in the weighing hopper.

[0009] Furthermore, the detection and conveying device includes a conveyor belt and a metal detection module. The metal detection module is arranged above the conveyor belt. The conveyor belt conveys the vacuum-sealed packaging bags and detects whether there is metal in the packaging bags through the metal detection module.

[0010] Furthermore, the connecting head has a strip groove, and the connecting component passes through the support ring frame through the strip groove and is fixedly connected to the limit seat. The upper and lower sides of both ends of the limit seat have protrusions extending toward the connecting head, so that the protrusions limit the side walls of the connecting head.

[0011] Furthermore, a rubber curtain is provided between the upper feed hopper and the main vibration plate.

[0012] Furthermore, a first discharge channel and a second discharge channel are set below the discharge hopper, and the discharge port of the discharge hopper is hingedly provided with a first discharge baffle and a second discharge baffle, respectively. The first discharge baffle or the second discharge baffle is driven to open and close by an opening and closing driving device, so that the meatballs in the discharge hopper fall into the first discharge channel or the second discharge channel.

[0013] Furthermore, the bag storage includes a base, a front baffle, and side panels. The front baffle is fixedly arranged at the front end of the base. The side panels are a pair and are slidably arranged on both sides of the base so that the packaging bags can be stacked between the front baffle and the side panels. A pair of limiting rods are provided on the rear end of the base, and a clamping block is provided on the limiting rod for clamping the tail of the packaging bag.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention integrates the conveying, metering, packaging, and boxing of meatballs into a production line. The control system controls the connection of each workstation, so that each device operates synchronously, avoiding contamination caused by direct human contact with food, ensuring food safety and hygiene, reducing weight errors, and the entire process is automated, with neat packaging and high production efficiency. (2) A current limiting plate is provided on each linear vibration plate, which is used to provide a certain tightening force on the meatballs at the discharge end of the linear vibration plate, so that the meatballs on the linear vibration plate can be evenly output, preventing the meatballs from rolling into the weighing mechanism under their own force, and ensuring accurate measurement. (3) The height of the current limiting plate can be adjusted according to the size of different meatballs to ensure that the current limiting plate always maintains a certain tightening force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is the overall structural diagram of the combination weigher; Figure 3 It is a top view of the overall structure of the combination weigher; Figure 4 Schematic diagram of the overall structure of the current limiting mechanism; Figure 5 It is a side view of the overall structure of the storage hopper; Figure 6 It is the side view of the overall structure of the weighing bucket; Figure 7 It is a top view of the overall structure of the packaging device; Figure 8 It is a side view of the overall structure of the bag warehouse. DETAILED DESCRIPTION

[0016] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0017] Reference Figure 1 、 Figure 2 As shown, a meatball automatic metering vacuum packaging production line includes a lifting belt 1, a combination scale 2, a packaging device 3, a vacuum sealing device 4, a detection and conveying device 5, and a control unit. The combination scale 2 is arranged between the packaging device 3 and the lifting belt 1. The lifting belt 1 lifts the meatballs and sends them into the combination scale 2. The meatballs are weighed by the combination scale 2 and sent to the packaging device 3 for bagging. The vacuum sealing device 4 is arranged on one side of the packaging device 3. The detection and conveying device 5 is arranged on one side of the vacuum sealing device 4. The vacuum sealing device is used to vacuum-seal the packaging bags loaded with meatballs on the packaging device 3 and send the sealed packaging bags to the detection and conveying device 5. The lifting belt 1, combination scale 2, packaging device 3, vacuum sealing device 4, and detection and conveying device 5 are respectively electrically connected to the control unit. In this embodiment, the control unit is a PLC, so that the lifting belt 1, combination scale 2, packaging device 3, vacuum sealing device 4, and detection and conveying device 5 are automated through the control unit.

[0018] Reference Figure 2 、 Figure 3As shown, further, the combination weigher 2 includes an upper feed hopper 21, a weighing mechanism 22, and a discharge hopper 23 that are connected to each other from top to bottom. The upper feed hopper 21 is mounted above the weighing mechanism 22, and the discharge hopper 23 is arranged below the weighing mechanism 22. A main vibration plate 24 is arranged below the discharge port of the upper feed hopper 21. In this embodiment, a height detection module is provided on the upper feed hopper 21, preferably a photoelectric sensor is adopted, and the height detection module is electrically connected to the control unit. When the height of the balls piled on the main vibration plate 24 is lower than the height detection module, the height detection module feeds back the signal to the control unit, and the control unit then controls the lifting belt to send the balls into the upper feed hopper 21 until the height of the balls piled on the main vibration plate exceeds the height detection module, and the lifting belt stops to continue lifting the material. There is a guide between the main vibration plate 24 and the upper feed hopper 21 for the balls to flow out. The upper feed hopper 21 is provided with a conical surface, and the conical surface of the main vibration plate is used to guide the balls to flow from the center to the surroundings, so that the balls fall onto the wire vibration plate 25. A rubber curtain 27 is provided between the upper feed hopper 21 and the main vibration plate 24. The rubber curtain 27 provides a certain tightening force to the balls on the main vibration plate 24 to prevent the balls from suddenly falling over, ensuring that the balls can be evenly fed onto the wire vibration plate 25. The control unit sends a feeding instruction to the wire vibration drive device, so that the wire vibration drive device drives the wire vibration plate 25 to vibrate and transfer the balls from the guide gap to the weighing mechanism 22, and the balls are weighed by the weighing mechanism 22 and sent to the discharge hopper 23. In this embodiment, the wire vibration drive device preferably adopts a straight vibrator.

[0019] Preferably, a guide rod is fixedly mounted on the weighing mechanism 22, and an adjustment frame is provided on both sides of the upper feed hopper 21. The end of the adjustment frame away from the upper feed hopper is slidably fitted with the guide rod and is fixedly connected to the guide rod through a locking component. In this embodiment, the locking component is preferably a screw, so that the height of the upper feed hopper can be adjusted, thereby controlling the distance between the upper feed hopper and the main vibration plate to ensure the stability of the feed.

[0020] Combine Figure 4 As shown, it is better that a number of flow limiting mechanisms 26 are set above the discharge end of the wire vibration disk 25, a support ring frame 28 is set above the weighing mechanism 22, an adjustment block is fixedly set in the middle of the guide rod, the support ring frame 28 is fixedly connected to the adjustment block, and a number of flow limiting mechanisms 26 are equidistantly arranged on the support ring frame 28 along the circumferential direction, and the adjustment block is fixedly connected to the guide rod through a locking component. In this embodiment, the locking component is preferably a screw, so that the distance between the flow limiting mechanism 26 and the wire vibration disk 25 can be controlled by adjusting the support ring frame 28.

[0021] Specifically, the current limiting mechanism 26 includes a current limiting plate 261, on which a connector 262 fixedly connected to the support ring frame 28 is provided. In this embodiment, the current limiting plate 261 is made of soft rubber material, so that the current limiting plate 261 can provide a certain tightening force to the meatballs at the discharge end of the wire vibration plate 25, so that the meatballs on the wire vibration plate 25 can fall evenly into the weighing mechanism 22, avoiding the meatballs rolling into the weighing mechanism 22 under their own force, thereby ensuring accurate measurement.

[0022] A limiting seat 263 is provided on the support ring frame 28, and a strip groove 2621 is provided on the connecting head 262. The connecting component passes through the support ring frame 28 through the strip groove 2621 and is fixedly connected to the limiting seat 263. In this embodiment, the connecting component preferably adopts screws and nuts, so that the height of the current limiting plate 261 can be adjusted according to the size of different meatballs to ensure that the current limiting plate 261 always maintains a certain tightening force. The upper and lower sides of both ends of the limiting seat 263 have protrusions 2631 extending toward the connecting head 262, so that the protrusions 2631 limit the side walls of the connecting head 262 to prevent the current limiting plate from tilting left and right.

[0023] Reference Figure 2 As shown, further, the weighing mechanism 22 includes a plurality of storage hoppers 221, a plurality of weighing hoppers 222, and a mounting frame 223. The plurality of storage hoppers 221 are respectively arranged below the end of the linear vibration plate 25, and the plurality of weighing hoppers 222 are respectively arranged below the storage hopper 221, and the plurality of storage hoppers 221 and the weighing hoppers 222 are respectively hung on the peripheral wall of the mounting frame 223 along the circumferential direction, and the linear vibration driving device is fixedly installed on the mounting frame 223. In this embodiment, the upper peripheral wall of the mounting frame 223 is circumferentially provided with a plurality of buffer support frames, and the buffer support frame has a first mounting groove. The storage hopper 221 is provided with a plurality of buffer support frames. A first mounting plate 2210 is fixedly provided on both sides of 21, and a hopper mounting rod is provided between the first mounting plates 2210, so that the hopper mounting rod of the hopper 221 is clamped on the first mounting groove of the buffer support frame, and a plurality of weighing support frames are circumferentially provided on the lower peripheral wall of the mounting frame 223, and the weighing support frame has a second mounting groove, and a second mounting plate 2220 is fixedly provided on both sides of the weighing hopper 222, and a weighing hopper mounting rod is provided between the second mounting plates 2220, so that the weighing hopper mounting rod of the weighing hopper 222 is clamped on the second mounting groove of the weighing support frame.

[0024] Combine Figure 5As shown, in this embodiment, the lower opening of the storage hopper 221 is hingedly connected with a buffer stopper plate 2211, and a buffer driving plate 2212 is rotatably provided on the upper part of the first mounting plate 2210, and a first connecting rod 2213 is hinged between the buffer driving plate 2212 and the buffer stopper plate 2211, and a buffer driving device is fixedly installed on the peripheral wall of the mounting frame 223 on the buffer support frame and is electrically connected to the control unit. In this embodiment, the buffer driving device preferably adopts a servo motor, the output shaft of which is fixedly provided with a first eccentric wheel, and a buffer driving rod 2214 is provided on the buffer driving plate 2212. The first eccentric wheel is driven by the buffer driving device to rotate and push the buffer driving rod 2214 to drive the buffer driving plate 2212 to rotate, thereby linking the buffer stopper plate 2211 to open the lower opening of the storage hopper 221, and a buffer elastic component is also provided between the top of the buffer driving plate 2212 and the first mounting plate, so that the buffer stopper plate 2211 maintains a normally closed state with the discharge port of the storage hopper 221 under the elastic action of the buffer elastic component.

[0025] Combine Figure 6 As shown, the lower opening of the weighing bucket 222 is hinged with a weighing material blocking plate 2221, and the upper part of the second mounting plate 2220 is rotatably provided with a weighing drive plate 2222, and a second connecting rod 2223 is hinged between the weighing drive plate 2222 and the weighing material blocking plate 2221. The peripheral wall of the mounting frame 223 is fixedly installed with a weighing drive device on the weighing support frame and is electrically connected to the control unit. In this embodiment, the weighing drive device preferably adopts a servo motor, and a second eccentric wheel is fixedly provided on its output shaft. A weighing drive rod 2224 is provided on the heavy drive plate 2222. The weighing drive device drives the second eccentric wheel to rotate, pushing the weighing drive rod 2224 to drive the weighing drive plate 2222 to rotate, thereby linking the weighing baffle plate 2221 to open the lower opening of the weighing bucket 222. A weighing elastic component is also provided between the top of the weighing drive plate 2222 and the second mounting plate, so that the weighing baffle plate 2221 and the discharge port of the weighing bucket 222 remain in a normally closed state under the elastic action of the weighing elastic component.

[0026] The structures of the above-mentioned storage hopper 221 and weighing hopper 222 are prior art and will not be repeated in this embodiment.

[0027] Furthermore, a weighing detection module is provided in the mounting frame 223, and the weighing detection module is electrically connected to the control unit. In this embodiment, the weighing detection module preferably adopts a weighing sensor, and the sensing end of the weighing sensor conflicts with the weighing bucket mounting rod, so that the weight of the meatballs in the weighing bucket 222 is detected by the weighing detection module. After the weight of the meatballs in the weighing bucket reaches the set weight, the weighing detection module feeds back the signal to the control unit, and the control unit then controls the weighing drive device to link the weighing baffle to open, so that the measured meatballs fall into the discharge hopper 23, and the discharge hopper 23 sends the measured meatballs to the designated workstation for packaging, thereby ensuring accurate measurement and reducing weight errors.

[0028] The first and second discharge channels 231 and 232 are respectively provided at the bottom of the discharge hopper 23. In this embodiment, a discharge support frame is provided at the bottom of the discharge hopper 23, which is fixedly connected to the mounting frame 223, and the upper parts of the discharge channels 231 and the second discharge channels 232 are fixedly provided on the discharge support frame, and the discharge port of the discharge hopper 23 is respectively hingedly provided with a first discharge baffle 233 and a second discharge baffle 234. An opening and closing drive device is respectively installed on both sides of the discharge support frame and is electrically connected to the control unit. In this embodiment, the opening and closing drive device preferably adopts a cylinder, and its telescopic end is hinged to the first discharge baffle 233 / the second discharge baffle 234. The first discharge baffle 233 or the second discharge baffle 234 is driven to open and close by the opening and closing drive device, so that the meatballs in the discharge hopper 23 fall into the first discharge channel 231 or the second discharge channel 232, thereby sending the weighed meatballs to the corresponding workstation for packaging.

[0029] In this embodiment, the first discharge channel 231 is connected to the packaging device so that the measured meatballs can be introduced into the packaging device 3 through the first discharge channel 231 for small-size packaging, while the second discharge channel 232 is used to introduce the measured meatballs into another workstation for large-size packaging, thereby realizing large and small bag packaging.

[0030] Alternatively, when the meatballs after weighing are unqualified, the second unloading baffle 234 can be opened to allow the unqualified meatballs to be sent out through the second unloading channel 232 for recycling, thereby ensuring the qualified rate of packaging.

[0031] Therefore, in this embodiment, different packaging modes can be set through the control unit. For example, when small-size packaging is set, the control unit controls the opening and closing drive device to drive the first discharge baffle 233 to open the first discharge channel 231, and the meatballs are sent to the packaging device 3 for bagging. When large-size packaging is set, the control unit controls the opening and closing drive device to drive the second discharge baffle 234 to open the second discharge channel 232, so that the second discharge channel 232 guides the meatballs into the large packaging bag, and then the worker manually seals it.

[0032] Reference Figure 1 、 Figure 7 As shown, the packaging device 3 includes a turntable, a bag feeding mechanism 32, a bag opening mechanism 33, a filling mechanism 34, and a leveling mechanism 35. A plurality of bag clamping mechanisms 36 are provided on the periphery of the turntable for clamping the packaging bags delivered by the bag feeding mechanism 32, and the turntable is driven by the rotating drive device to link the bag clamping mechanisms 36 to sequentially deliver the packaging bags through the bag opening mechanism 33, the filling mechanism 34, the leveling mechanism 35, and the vacuum sealing device 4.

[0033] Combine Figure 8 As shown, the bag feeding mechanism 32 includes a bag storage 321, a bag suction nozzle 322, and a bag feeding mechanism 323. Several packaging bags are stacked on the bag storage 321. The bag suction nozzle 322 is liftably arranged above the bag storage 321. The bag feeding mechanism 32 is rotatably arranged between the bag suction nozzle 322 and the turntable.

[0034] Among them, the bag storage 321 includes a base 3211, a front baffle 3212, and a side panel 3213. The front baffle 3212 is fixedly arranged at the front end of the base 3211 for limiting the front end of the packaging bag. The side panels 3213 are a pair and are slidably arranged on both sides of the base 3211, so that a stacking space for placing packaging bags is formed between the front baffle 3212 and the side panels 3213. In this embodiment, a screw linear module is arranged below the base 3211, and the lower part of the side panel 3213 is threadedly connected to the screw of the screw linear module, so that the side panels 3213 are driven to move close to or away from each other through the screw linear module, thereby adjusting the distance between the side panels 3213 according to the width of the packaging bag to ensure that the side panels can limit the two sides of the packaging bag and make the packaging bags stacked neatly.

[0035] Furthermore, a pair of limiting rods 3214 are provided on the rear end of the base 3211, and the rear end of the packaging bag is limited by the limiting rods 3214. An adjusting plate is also provided on the rear side of the base 3211, and the limiting rods 3214 are provided on the adjusting plate. The adjusting plate has a strip hole groove, and the locking component is fixedly connected to the base 3211 through the strip hole groove, so that the distance between the limiting rod 3214 and the front baffle 3212 can be adjusted according to the length of the packaging bag, and a clamping block 3215 is provided on the limiting rod 3214, so that the clamping block 3215 is used to clamp the tail of the packaging bag to prevent the packaging bag from collapsing.

[0036] More preferably, a bag pressing mechanism 324 is provided above the head end of the bag storage 321, and the bag pressing mechanism 324 includes a pressure rod 3241, and a swing seat 3242 is fixedly provided at one end of the pressure rod 3241. The swing seat 3242 is rotatably connected to the bag storage 321, and an elastic component 3243 is provided between the swing seat 3242 and the bag storage 321. In this embodiment, the elastic component 3243 is a tension spring, so that the pressure rod 3241 always presses the packaging bags on the bag storage 321 under the elastic action of the elastic component 3243, ensuring that the packaging bags are stacked neatly and stably.

[0037] In this embodiment, a lifting drive device is provided on one side of the bag warehouse 321. The lifting drive device preferably adopts a screw linear module. The bag suction nozzle 322 is connected to an air source. By opening the air source, the lifting drive device drives the bag suction nozzle 322 to suck up the packaging bag on the top layer of the bag warehouse 322. The bag feeding mechanism is arranged between the bag warehouse 321 and the turntable. The bag feeding mechanism includes a bag feeding clamp and a swing arm drive device. In this embodiment, the swing arm drive device is fixedly installed on one side of the base, and preferably adopts a motor. The output shaft is fixedly provided with a swing arm, and the bag feeding clamp is provided on the swing arm. In this embodiment, the bag feeding mechanism adopts pneumatic fingers to enable the swing arm drive device to link the bag feeding clamp to clamp the packaging bag on the bag suction nozzle 322, and then send the packaging bag to the bag clamping mechanism 36 for clamping by the bag clamping mechanism 36.

[0038] The bag clamping mechanism 36 includes a first bag clamping jaw and a second bag clamping jaw fixedly arranged on the turntable. In this embodiment, the first bag clamping jaw and the second bag clamping jaw preferably adopt pneumatic fingers, so that the first bag clamping jaw and the second bag clamping jaw respectively clamp the two sides of the bag opening of the packaging bag, and a spacing drive mechanism is provided between the first bag clamping jaw and the second bag clamping jaw, which drives the first bag clamping jaw and the second bag clamping jaw to move closer or away from each other through the spacing drive mechanism. In this embodiment, the spacing drive mechanism is an existing structure and will not be repeated here.

[0039] Furthermore, in this embodiment, the bag opening mechanism 33 includes a first bag opening suction nozzle and a second bag opening suction nozzle respectively arranged on the front and rear sides of the packaging bag. The first bag opening suction nozzle and the second bag opening suction nozzle are driven to move close to or apart by a bag opening driving device. In this embodiment, the bag opening driving device preferably adopts a cylinder. After the turntable sends the packaging bag on the bag clamping mechanism 36 between the first bag opening suction nozzle and the second bag opening suction nozzle, the bag opening driving device drives the first bag opening suction nozzle and the second bag opening suction nozzle to move close to each other and respectively suck the front and rear bag surfaces of the packaging bag, and then drives the first bag opening suction nozzle and the second bag opening suction nozzle to move apart by the bag opening driving device to separate the front and rear bag surfaces of the bag opening of the packaging bag, thereby ensuring the subsequent filling of the packaging bag.

[0040] Furthermore, a bag-supporting arm is rotatably provided on the turntable, and a bag-supporting mechanism is provided at one end of the bag-supporting arm away from the turntable. The bag-supporting mechanism includes a first bag-supporting piece and a second bag-supporting piece arranged opposite to each other. The bag-insertion driving device drives the bag-supporting arm to drive the first bag-supporting piece and the second bag-supporting piece to descend and be inserted into the bag opening of the packaging bag, and then the bag-supporting driving device drives the first bag-supporting piece and the second bag-supporting piece to move close to or away from each other to support the bag opening of the packaging bag. In this embodiment, the bag-insertion driving device and the bag-supporting driving device are preferably cylinders, and the bag-supporting mechanism is an existing technology and will not be repeated here.

[0041] During specific operation, after the first bag opening suction nozzle and the second bag opening suction nozzle open the bag opening of the packaging bag, the bag insertion driving device drives the bag supporting arm to drive the first bag insertion piece and the second bag insertion piece to insert into the bag opening of the packaging bag, and then the bag supporting drive device drives the first bag insertion piece and the second bag insertion piece to move away from each other to support the bag opening of the packaging bag. The bag supporting arm rotates with the turntable, so that the first bag insertion piece and the second bag insertion piece move with the packaging bag from the work station of the bag opening mechanism 33 to the work station of the filling mechanism 34, so that when the filling mechanism 34 fills the packaging bag with food, the first bag insertion piece and the second bag insertion piece maintain the bag opening of the packaging bag in an open state at all times. After the filling is completed, the first bag insertion piece and the second bag insertion piece rise under the drive of the bag supporting arm and return to the work station of the bag opening mechanism 33 to perform the next bag supporting action.

[0042] The filling mechanism 34 includes a hopper, which is arranged on one side of the turntable in a liftable manner. When the packaging bag moves to the bottom of the hopper, the hopper is driven down by the discharge driving device, so that the discharge port of the hopper extends into the bag opening of the packaging bag. The meatballs sent out from the first discharge channel are received by the hopper, and the meatballs are introduced into the packaging bag through the hopper, thereby completing the automatic filling of the meatballs. In this embodiment, the discharge driving device is fixedly installed on one side of the turntable, and preferably uses a cylinder, whose telescopic end is fixedly connected to the hopper.

[0043] The leveling mechanism 35 includes a first leveling push plate and a second leveling push plate that are arranged relatively to each other, and a telescopic cylinder is fixedly installed on one side of the turntable, and its telescopic end is fixedly connected to the first leveling push plate / the second leveling push plate. The telescopic cylinder drives the first leveling push plate and the second leveling push plate to move similarly, so that the meatballs in the packaging bag are flattened, so as to facilitate the subsequent vacuum sealing work.

[0044] The vacuum sealing device in this embodiment can refer to a fully automatic vacuum packaging machine with Chinese Utility Model Publication No. CN205150346U. In this embodiment, a feeding mechanism is provided between the turntable and the vacuum sealing device 4. The feeding mechanism receives the filled packaging bag on the bag clamping mechanism and feeds it into the vacuum packaging chamber of the vacuum sealing device 4. The clamping claws in the vacuum packaging chamber clamp the filled packaging bag, causing the vacuum pump to evacuate the packaging bag in the vacuum packaging chamber, and then the packaging device in the vacuum packaging chamber seals the bag. Finally, the vacuum sealing device 4 transfers the vacuum-sealed packaging bag and drops it onto the detection and conveying device. Since the above-mentioned vacuum sealing device is a prior art, this embodiment will not be repeated here.

[0045] The detection and conveying device 5 includes a conveyor belt and a metal detection module. The metal detection module is arranged above the conveyor belt. In this embodiment, the metal detection module preferably adopts a metal detector. The conveyor belt receives the vacuum-packed packaging bags on the vacuum sealing device and transmits them to the designated workstation so that the staff can carry out the packing work and use the metal detection module to detect the passing packaging bags to detect whether there is metal in the packaging bags, so as to ensure food safety.

[0046] Through the above settings, the synchronous operation of each device is achieved, that is, the connection of each workstation of the control system is achieved, the whole process is automated, the production efficiency is greatly improved, the contamination caused by direct human contact with food is avoided, and food safety and hygiene are ensured.

[0047] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They cannot be used to limit the scope of protection of the present invention. Any modifications made based on the spirit of the main technical solution of the present invention should be included in the scope of protection of the present invention.

Claims

1. A meatball automatic metering vacuum packaging production line, characterized in that: The invention comprises a lifting belt (1), a combination weigher (2), and a control unit. The combination weigher (2) is arranged between the packaging device (3) and the lifting belt (1). The control unit controls the lifting belt (1) to lift the formed meatballs and feed them into the combination weigher (2). The combination weigher (2) comprises an upper feed hopper (21) that is connected to each other, a weighing mechanism (22), and a discharge hopper (23). A main vibration plate (24) is arranged below the discharge port of the upper feed hopper (21). The main vibration plate (24) is provided on the upper feed hopper (21). 4) There is a guide slot for the meatballs to flow out between the upper feed hopper (21), and a wire vibration plate (25) is provided between the guide slot and the weighing mechanism (22). The control unit controls the wire vibration driving device to drive the wire vibration plate (25) to vibrate and transfer the meatballs from the guide slot to the weighing mechanism (22), so that the weighed meatballs are placed in the discharge hopper, so that the discharge hopper (23) can send the weighed meatballs into the packaging device (3) for bagging; A flow limiting mechanism (26) is movably provided above the discharge end of the linear vibration plate (25), and the meatballs on the linear vibration plate (25) are uniformly dropped into the weighing mechanism (22) through the flow limiting mechanism (26); The current limiting mechanism (26) includes a current limiting piece (261), the current limiting piece (261) is made of a flexible material, a support frame is provided above the weighing mechanism (22), a connector (262) fixedly connected to the support frame is provided on the current limiting piece (261), and a limiting seat (263) is provided on the support frame for limiting cooperation with the connector (262).

2. The meatball automatic metering vacuum packaging production line according to claim 1, characterized in that: The packaging device (3) comprises a turntable, a bag feeding mechanism (32), a bag opening mechanism (33), and a filling mechanism (34). A plurality of bag clamping mechanisms (36) are provided on the periphery of the turntable for clamping the packaging bags delivered by the bag feeding mechanism (32) and sequentially delivering the packaging bags through the bag opening mechanism (33), the filling mechanism (34), and the vacuum sealing device (4) under the rotation of the turntable.

3. The meatball automatic metering vacuum packaging production line according to claim 2, characterized in that: The bag feeding mechanism (32) includes a bag storehouse (321), a bag suction nozzle (322), and a bag feeding mechanism (323). A plurality of packaging bags are stacked on the bag storehouse (321). The bag suction nozzle (322) is movably arranged above the bag storehouse (321) for sucking up the packaging bags on the uppermost layer of the bag storehouse (321). The bag feeding mechanism (323) is arranged between the bag suction nozzle (322) and the turntable so that the bag feeding mechanism (323) can clamp the packaging bags on the bag suction nozzle (322) and provide them for the bag clamping mechanism (36) to clamp. A bag pressing mechanism (324) is arranged above the head end of the bag storehouse (321) for pressing the packaging bags on the bag storehouse (321).

4. The meatball automatic metering vacuum packaging production line according to claim 3, characterized in that: The bag pressing mechanism (324) comprises a pressing rod (3241), one end of which is fixedly provided with a swing seat (3242), the swing seat (3242) being rotatably connected to the bag storage (321), and an elastic component (3243) being provided between the swing seat (3242) and the bag storage (321), so that the pressing rod (3241) can press the packaging bag on the bag storage (321) under the elastic action of the elastic component (3243).

5. The meatball automatic metering vacuum packaging production line according to claim 1, characterized in that: The weighing mechanism (22) includes a storage hopper (221), a weighing hopper (222), and a mounting frame (223). The storage hopper (221) is arranged below the end of the wire vibrating plate (25), and the weighing hopper (222) is arranged below the storage hopper (221). The storage hopper (221) and the weighing hopper (222) are respectively hung on the peripheral wall of the mounting frame (223). The storage hopper (221) is used to temporarily store the meatballs sent out by the wire vibrating plate (25), and the control unit controls the storage hopper (221) to put the meatballs into the empty weighing hopper (222) for weighing. The mounting frame (223) is provided with a buffer drive device for linking the opening and closing of the buffer material blocking plate (2211) of the storage hopper (221). The mounting frame (223) is also provided with a weighing drive device for linking the opening and closing of the weighing material blocking plate (2221) of the weighing hopper (222). A weighing detection module is provided in the mounting frame (223) for detecting the weight of the meatballs in the weighing hopper (222).

6. The meatball automatic metering vacuum packaging production line according to claim 1, characterized in that: It also includes a vacuum sealing device (4) and a detection and conveying device (5), wherein the detection and conveying device (5) is arranged on one side of the vacuum sealing device (4), and the control unit controls the vacuum sealing device (4) to vacuum-seal the packaging bag loaded with meatballs on the packaging device (3), and then convey the sealed packaging bag to the detection and conveying device (5); The detection and conveying device (5) comprises a conveyor belt and a metal detection module. The metal detection module is arranged above the conveyor belt. The conveyor belt conveys the vacuum-sealed packaging bags and detects whether there is metal in the packaging bags through the metal detection module.

7. The meatball automatic metering vacuum packaging production line according to claim 1, characterized in that: The connector (262) has a strip groove (2621), and the connecting component passes through the support ring frame (28) through the strip groove (2621) and is fixedly connected to the limiting seat (263). The upper and lower sides of both ends of the limiting seat (263) have protrusions (2631) extending toward the connector (262), so that the protrusions (2631) limit the side wall of the connector (262).

8. The meatball automatic metering vacuum packaging production line according to claim 1, characterized in that: A rubber curtain (27) is provided between the upper feed hopper (21) and the main vibration plate (24).

9. The meatball automatic metering vacuum packaging production line according to claim 1, characterized in that: A first discharge channel (231) and a second discharge channel (232) are provided below the discharge hopper (23), and a first discharge baffle (233) and a second discharge baffle (234) are hingedly provided at the discharge port of the discharge hopper (23), respectively. The first discharge baffle (233) or the second discharge baffle (234) is driven to open and close by an opening and closing driving device, respectively, so that the meatballs in the discharge hopper (23) fall into the first discharge channel (231) or the second discharge channel (232).

10. The meatball automatic metering vacuum packaging production line according to claim 3, characterized in that: The bag storage (321) comprises a base (3211), a front baffle (3212), and side panels (3213). The front baffle (3212) is fixedly arranged at the front end of the base (3211). The side panels (3213) are a pair and are slidably arranged on both sides of the base (3211) so that the packaging bags can be stacked between the front baffle (3212) and the side panels (3213). A pair of limiting rods (3214) are provided on the rear end of the base (3211), and a pressing block (3215) is provided on the limiting rods (3214) for pressing the tail of the packaging bag.

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