Automatic meatball metering and vacuum packaging production line

Abstract

The application discloses a kind of meat ball automatic metering vacuum packaging production line, including lifting belt, combination scale \ packaging device, vacuum sealing device, detection conveying device, control unit, combination scale is set between packaging device and lifting belt, lifting belt is sent into the combination scale and is lifted into ball, ball is weighed by the combination scale and is sent into packaging device and is bagged, vacuum sealing device is set to one side of packaging device, detection conveying device is set to one side of vacuum sealing device, vacuum sealing device is used to the bag of packaging device on ball is packed and is sealed, and the bag of completion sealing is sent into detection conveying device, and lifting belt, combination scale, packaging device, vacuum sealing device, detection conveying device are electrically connected with control unit respectively.The application is high in degree of automation, realizes ball conveying, metering, packaging integration one production line, and greatly improves production efficiency.

Description

Technical Field

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

[0002] The current market primarily relies on manual counting, bagging, and boxing, which is slow and leads to mental and physical fatigue from prolonged work, resulting in inaccurate counting. Packaging is mainly done manually, making automation impossible. The manual bag opening, counting, and sealing processes suffer from drawbacks such as overpacking, underpacking, and unsightly sealing. To achieve the weighing and mixing of multiple materials, the conventional solution is to install a material distribution device on a combination scale for separate conveying, weighing, and then mixing according to requirements. However, because each material has different shape, quality, and adhesive properties—for example, meatballs, which have good flowability, can easily roll into the hopper during vibration, resulting in inconsistent quantities in each hopper and measurement errors. This necessitates re-collection and re-weighing of the meatballs, leading to time-consuming and inefficient processes. Summary of the Invention

[0003] The technical problem to be solved by the embodiments of the present invention is to provide an automatic meatball metering and vacuum packaging production line. Its automation level realizes the integration of meatball conveying, metering and packaging into one production line, which makes the metering more accurate and greatly improves the production efficiency.

[0004] To achieve the above objectives, this invention discloses an automatic meatball weighing and vacuum packaging production line, comprising a lifting belt, a combined scale, a packaging device, a vacuum sealing device, a detection and conveying device, and a control unit. The combined scale is disposed between the packaging device and the lifting belt. The control unit controls the lifting belt to lift and feed the formed meatballs into the combined scale. The combined scale includes an upper feed hopper, a weighing mechanism, and a discharge hopper that are connected vertically. A main vibrating plate is disposed below the discharge port of the upper feed hopper. A guide slit for meatballs to flow out is provided between the main vibrating plate and the upper feed hopper. A linear vibrating plate is disposed between the guide slit and the weighing mechanism. The control unit controls the linear vibrating drive device to drive the linear vibrating plate to vibrate and convey the meatballs from the guide slit to the weighing mechanism.

[0005] The weighing mechanism includes a storage hopper, a weighing hopper, and a mounting frame. The storage hopper is located below the end of the vibrating plate, and the weighing hopper is located below the storage hopper. The storage hopper and the weighing hopper are respectively hung on the periphery of the mounting frame. The storage hopper is used to temporarily store the pellets delivered by the vibrating plate. The control unit controls the storage hopper to put the pellets into the empty weighing hopper for weighing, and then puts the weighed pellets into the discharge hopper so that the discharge hopper can send the weighed pellets into the packaging device for bagging.

[0006] The vacuum sealing device is located on one side of the packaging device, and the detection and conveying device is located on one side of the vacuum sealing device. The control unit controls the vacuum sealing device to vacuum seal the packaging bag containing the meatballs on the packaging device, and then sends the sealed packaging bag onto the detection and conveying device.

[0007] A flow limiting mechanism is movably installed above the discharge end of the linear vibrating plate, which allows the pellets on the linear vibrating plate to fall evenly into the weighing mechanism.

[0008] The current limiting mechanism includes a current limiting plate made of flexible material. A support ring frame is mounted above the weighing mechanism. The current limiting plate is provided with a connector that is fixedly connected to the support ring frame. The support ring frame is provided with a limit seat for limiting the connection with the connector.

[0009] Furthermore, the packaging device includes a turntable, a bag feeding mechanism, a bag opening mechanism, and a filling mechanism. The outer periphery of the turntable is provided with several bag clamping mechanisms for clamping the packaging bags fed out by the bag feeding mechanism and feeding the packaging bags sequentially through the bag opening mechanism, the filling mechanism, and the vacuum sealing device under the rotation of the turntable.

[0010] Furthermore, the bag feeding mechanism includes a bag magazine, a suction nozzle, and a bag feeding mechanism. Several packaging bags are stacked on the bag magazine. The suction nozzle is vertically and vertically positioned above the bag magazine to suck up the topmost packaging bag on the bag magazine. The bag feeding mechanism is positioned between the suction nozzle and the turntable so that the bag feeding mechanism can clamp the packaging bag on the suction nozzle and allow it to be clamped by the bag clamping mechanism. A bag pressing mechanism is provided above the head end of the bag magazine to press the packaging bags on the bag magazine tightly.

[0011] Furthermore, the bag pressing mechanism includes a pressing rod, one end of which is fixedly provided with a swing seat. The swing seat is rotatably connected to the bag magazine, and an elastic component is provided between the swing seat and the bag magazine, so that the pressing rod presses the packaging bag on the bag magazine under the elastic action of the elastic component.

[0012] Furthermore, the mounting frame is equipped with a buffer drive device for linking the opening and closing of the buffer baffle of the storage hopper, and the mounting frame is also equipped with a weighing drive device for linking the opening and closing of the weighing baffle of the weighing hopper. The mounting frame is equipped with a weighing detection module for detecting the weight of the pellets in the weighing hopper.

[0013] Furthermore, the detection and conveying device includes a conveyor belt and a metal detection module. The metal detection module is positioned above the conveyor belt. The conveyor belt conveys the vacuum-sealed packaging bags and detects whether there is metal inside the packaging bags through the metal detection module.

[0014] Furthermore, the connector has a strip groove, through which the connecting component passes through the support ring and is fixedly connected to the limiting seat. The upper and lower sides of the limiting seat have protrusions extending toward the connector, so that the protrusions limit the sidewall of the connector.

[0015] Furthermore, a rubber curtain is provided between the upper feed hopper and the main vibrating plate.

[0016] Furthermore, a first discharge channel and a second discharge channel are provided below the discharge hopper, and a first discharge baffle and a second discharge baffle are respectively hinged to the discharge port of the discharge hopper. The first discharge baffle or the second discharge baffle is opened and closed by the opening and closing drive device, so that the balls in the discharge hopper fall into the first discharge channel or the second discharge channel.

[0017] Furthermore, the bag storage includes a base, a front baffle, and side plates. The front baffle is fixedly disposed at the front end of the base. The side plates are a pair and are slidably disposed on both sides of the base, so that the packaging bags are stacked between the front baffle and the side plates. A pair of limiting rods are provided on the rear end of the base, and a clamping block is sleeved on the limiting rod for clamping the tail of the packaging bag.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] (1) This invention integrates meatball conveying, metering, packaging, and boxing into one production line. The control system controls the connection of each station, so that each device operates synchronously, avoiding contamination caused by direct human contact with food, ensuring food safety and hygiene, reducing weight errors, and automating the entire process, resulting in neat packaging and high production efficiency. (2) A flow restrictor is set on each vibrating plate. The flow restrictor provides a certain tightening force to the meatballs at the discharge end of the vibrating plate, so that the meatballs on the vibrating plate can be output evenly, preventing the meatballs from rolling into the weighing mechanism under their own force, thus ensuring accurate metering. (3) The height of the flow restrictor can be adjusted according to the size of different meatballs to ensure that the flow restrictor always maintains a certain tightening force. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the combination scale;

[0022] Figure 3 This is a top view of the overall structure of the combination scale;

[0023] Figure 4 This is a schematic diagram of the overall structure of the current limiting mechanism;

[0024] Figure 5 This is a side view of the overall structure of the storage hopper;

[0025] Figure 6 This is a side view of the overall structure of the weighing hopper;

[0026] Figure 7 This is a top view of the overall structure of the packaging device;

[0027] Figure 8 This is a side view of the overall structure of the bag storage unit. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Reference Figure 1 , Figure 2 As shown, an automatic meatball weighing and 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 located between the packaging device 3 and the lifting belt 1. The lifting belt 1 lifts the meatballs and feeds them into the combination scale 2. The combination scale 2 weighs the meatballs and sends them into the packaging device 3 for bagging. The vacuum sealing device 4 is located on one side of the packaging device 3, and the detection and conveying device 5 is located on one side of the vacuum sealing device 4. The vacuum sealing device is used to vacuum seal the packaging bags containing the meatballs on the packaging device 3 and send the sealed packaging bags onto 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 all electrically connected to the control unit. In this embodiment, the control unit is a PLC, thereby realizing the automated operation of the lifting belt 1, combination scale 2, packaging device 3, vacuum sealing device 4, and detection and conveying device 5 through the control unit.

[0030] Reference Figure 2 , Figure 3As shown, the combined scale 2 further includes an upper feed hopper 21, a weighing mechanism 22, and a discharge hopper 23 that are connected vertically. The upper feed hopper 21 is mounted above the weighing mechanism 22, and the discharge hopper 23 is located below the weighing mechanism 22. A main vibrating plate 24 is located 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, and the height detection module is electrically connected to the control unit. When the height of the balls accumulated on the main vibrating plate 24 is lower than that of the height detection module, the height detection module feeds the signal back to the control unit. The control unit then controls the lifting belt to feed the balls into the upper feed hopper 21 until the height of the balls accumulated on the main vibrating plate exceeds that of the height detection module. At this point, the lifting belt stops feeding. There is a guide between the main vibrating plate 24 and the upper feed hopper 21 for the balls to flow out. The feed slit is connected to the weighing mechanism 22, and several linear vibrating discs 25 are arranged circumferentially between the feed slit and the main vibrating disc 25. In this embodiment, the top surface of the main vibrating disc is a conical surface. The lifting belt 1 feeds the pellets into the upper feed hopper 21. The conical surface of the main vibrating disc guides the pellets to flow from the center to the surrounding areas, so that the pellets fall onto the linear vibrating discs 25. A rubber curtain 27 is provided between the upper feed hopper 21 and the main vibrating disc 24. The rubber curtain 27 provides a certain tightening force on the pellets on the main vibrating disc 24 to prevent the pellets from suddenly tipping over and to ensure that the pellets can be evenly fed onto the linear vibrating discs 25. The control unit sends a feeding command to the linear vibration drive device, so that the linear vibration drive device drives the linear vibrating disc 25 to vibrate and transmit the pellets from the feed slit to the weighing mechanism 22. The weighing mechanism 22 weighs the pellets and sends them into the discharge hopper 23. In this embodiment, the linear vibration drive device is preferably a linear vibrator.

[0031] Preferably, a guide rod is fixedly installed 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 engaged with the guide rod and is fixedly connected to the guide rod by a locking component. In this embodiment, the locking component is preferably a screw, so as to adjust the height of the upper feed hopper, thereby controlling the distance between the upper feed hopper and the main vibrating plate and ensuring the stability of the feeding.

[0032] Combination Figure 4 As shown, more preferably, a plurality of flow limiting mechanisms 26 are mounted above the discharge end of the linear vibrating plate 25, a support ring frame 28 is mounted above the weighing mechanism 22, an adjusting block is fixedly mounted in the middle of the guide rod, the support ring frame 28 is fixedly connected to the adjusting block, the plurality of flow limiting mechanisms 26 are equidistantly arranged on the support ring frame 28 in the circumferential direction, and the adjusting block is fixedly connected to the guide rod by 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 linear vibrating plate 25 can be controlled by adjusting the support ring frame 28.

[0033] Specifically, the flow limiting mechanism 26 includes a flow limiting plate 261, on which a connector 262 is fixedly connected to the support ring frame 28. In this embodiment, the flow limiting plate 261 is made of soft rubber, thereby using the flow limiting plate 261 to provide a certain tightening force on the balls at the discharge end of the vibrating plate 25, so that the balls on the vibrating plate 25 can fall evenly into the weighing mechanism 22, avoiding the balls from rolling into the weighing mechanism 22 under their own force, and ensuring the accuracy of measurement.

[0034] Furthermore, a limiting seat 263 is provided on the support ring frame 28, and a strip groove 2621 is provided on the connector 262. The connecting component passes through the strip groove 2621 and is fixedly connected to the limiting seat 263 through the support ring frame 28. In this embodiment, the connecting component is preferably made of screws and nuts, so that the height of the flow limiting plate 261 can be adjusted according to the size of different balls, ensuring that the flow limiting plate 261 always maintains a certain tightening force. The upper and lower sides of the two ends of the limiting seat 263 have protrusions 2631 extending toward the connector 262, so that the protrusions 2631 limit the fit against the side wall of the connector 262, and prevent the flow limiting plate from tilting left and right.

[0035] Reference Figure 2 As shown, the weighing mechanism 22 further includes a plurality of storage hoppers 221, a plurality of weighing hoppers 222, and a mounting frame 223. The storage hoppers 221 are respectively disposed below the end of the linear vibrating plate 25, and the weighing hoppers 222 are respectively disposed below the storage hoppers 221. The storage hoppers 221 and weighing hoppers 222 are respectively hung circumferentially on the peripheral wall of the mounting frame 223. The linear vibration drive device is fixedly mounted on the mounting frame 223. In this embodiment, the upper peripheral wall of the mounting frame 223 is provided with a plurality of buffer support frames circumferentially, and the buffer support frames have first mounting grooves. The storage hoppers 221 and 222 are respectively disposed below the end of the linear vibrating plate 25. First mounting plates 2210 are fixedly installed 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 engaged in the first mounting groove of the buffer support frame. A plurality of weighing support frames are provided circumferentially on the lower peripheral wall of the mounting frame 223. The weighing support frames have second mounting grooves. Second mounting plates 2220 are fixedly installed 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 engaged in the second mounting groove of the weighing support frame.

[0036] Combination Figure 5As shown, in this embodiment, the lower opening of the storage hopper 221 is hinged with a buffer baffle plate 2211, and a buffer drive plate 2212 is rotatably mounted on the upper part of the first mounting plate 2210. A first connecting rod 2213 is hinged between the buffer drive plate 2212 and the buffer baffle plate 2211. A buffer drive device is fixedly mounted on the peripheral wall of the mounting frame 223 on the buffer support frame and electrically connected to the control unit. In this embodiment, the buffer drive device is preferably a servo motor, and a first eccentric wheel is fixedly mounted on its output shaft. A buffer drive rod 2214 is mounted on the buffer drive plate 2212. The buffer drive device drives the first eccentric wheel to rotate and pushes the buffer drive rod 2214 to drive the buffer drive plate 2212 to rotate, thereby linking the buffer baffle plate 2211 to open the lower opening of the storage hopper 221. A buffer elastic component is also provided between the top of the buffer drive plate 2212 and the first mounting plate, so that the buffer baffle plate 2211 and the discharge port of the storage hopper 221 remain in a normally closed state under the elastic action of the buffer elastic component.

[0037] Combination Figure 6 As shown, a weighing baffle 2221 is hinged to the lower opening of the weighing hopper 222, and a weighing drive plate 2222 is rotatably mounted on the upper part of the second mounting plate 2220. A second connecting rod 2223 is hinged between the weighing drive plate 2222 and the weighing baffle 2221. A weighing drive device is fixedly mounted on the periphery of the mounting frame 223 on the weighing support frame and electrically connected to the control unit. In this embodiment, the weighing drive device is preferably a servo motor, and a second eccentric wheel is fixedly mounted on its output shaft. A weighing drive rod 2224 is provided on the weighing drive plate 2222. The weighing drive device drives the second eccentric wheel to rotate, which in turn drives the weighing drive rod 2224 to rotate the weighing drive plate 2222. This, in turn, links the weighing baffle plate 2221 to open the lower opening of the weighing hopper 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 remains in a normally closed state with the discharge port of the weighing hopper 222 under the elastic action of the weighing elastic component.

[0038] The structures of the above-mentioned storage hopper 221 and weighing hopper 222 are existing technologies, and will not be repeated here in this embodiment.

[0039] Furthermore, a weighing detection module is installed inside the mounting frame 223. The weighing detection module is electrically connected to the control unit. In this embodiment, the weighing detection module preferably uses a weighing sensor. The sensing end of the weighing sensor abuts against the mounting rod of the weighing hopper, thereby detecting the weight of the balls in the weighing hopper 222 through the weighing detection module. After the weight of the balls in the weighing hopper reaches the set weight, the weighing detection module feeds the signal back to the control unit. The control unit then controls the weighing drive device to open the weighing baffle, so that the weighed balls fall into the discharge hopper 23. The discharge hopper 23 then sends the weighed balls to the designated station for packaging, thereby ensuring accurate measurement and reducing weight errors.

[0040] Below the discharge hopper 23, a first discharge channel 231 and a second discharge channel 232 are provided. In this embodiment, a discharge support frame is provided at the lower part of the discharge hopper 23. The discharge support frame is fixedly connected to the mounting frame 223. The upper parts of the discharge channel 231 and the second discharge channel 232 are fixedly installed on the discharge support frame. The discharge port of the discharge hopper 23 is respectively hinged to a first discharge baffle 233 and a second discharge baffle 234. Opening and closing drive devices are respectively installed on both sides of the discharge support frame and electrically connected to the control unit. In this embodiment, the opening and closing drive device is preferably a cylinder. Its extension end is hinged to the first discharge baffle 233 / second discharge baffle 234. The opening and closing drive device drives the first discharge baffle 233 or the second discharge baffle 234 to open and close, so that the balls in the discharge hopper 23 fall into the first discharge channel 231 or the second discharge channel 232, thereby sending the weighed balls to the corresponding workstation for packaging.

[0041] In this embodiment, the first feeding channel 231 is connected to the packaging device so that the metered meatballs can be fed into the packaging device 3 for small-sized packaging through the first feeding channel 231, while the second feeding channel 232 is used to feed the metered meatballs into another station for large-sized packaging, thereby realizing packaging of large and small bags.

[0042] Alternatively, if the weighed meatballs are substandard, the second feeding baffle 234 can be opened to allow the substandard meatballs to be sent out through the second feeding channel 232 for recycling, thus ensuring the packaging qualification rate.

[0043] Therefore, in this embodiment, different packaging modes can be set by the control unit. For example, when setting small-sized packaging, the control unit controls the opening and closing drive device to drive the first feeding baffle 233 to open the first feeding channel 231 and send the balls into the packaging device 3 for bagging. When setting large-sized packaging, the control unit controls the opening and closing drive device to drive the second feeding baffle 234 to open the second feeding channel 232, so that the second feeding channel 232 introduces the balls into the large packaging bag, and then the worker manually seals it.

[0044] 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. Several bag clamping mechanisms 36 are arranged on the outer periphery of the turntable to clamp the packaging bags fed out by the bag feeding mechanism 32. Under the drive of the rotation drive device, the bag clamping mechanisms 36 are linked to feed the packaging bags sequentially through the bag opening mechanism 33, the filling mechanism 34, the leveling mechanism 35, and the vacuum sealing device 4.

[0045] Combination 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 vertically and vertically positioned above the bag storage 321. The bag feeding mechanism 32 is rotatably positioned between the bag suction nozzle 322 and the turntable.

[0046] The bag storage unit 321 includes a base 3211, a front baffle 3212, and side plates 3213. The front baffle 3212 is fixedly disposed at the front end of the base 3211 to restrict the front end of the packaging bag. The side plates 3213 are a pair and are slidably disposed 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 plates 3213. In this embodiment, a lead screw linear module is disposed below the base 3211. The lower part of the side plates 3213 is threadedly connected to the lead screw of the lead screw linear module. The lead screw linear module drives the side plates 3213 to move closer or further apart, thereby adjusting the distance between the side plates 3213 according to the width of the packaging bag to ensure that the side plates can restrict both sides of the packaging bag and make the packaging bags stacked neatly.

[0047] Furthermore, a pair of limiting rods 3214 are provided on the rear end of the base 3211 to limit the rear end of the packaging bag. An adjusting plate is also provided on the rear side of the base 3211, and the limiting rods 3214 are set on the adjusting plate. The adjusting plate has a strip-shaped hole groove. The locking component is fixedly connected to the base 3211 through the strip-shaped hole groove. In this way, the distance between the limiting rods 3214 and the front baffle 3212 can be adjusted according to the length of the packaging bag. A pressing block 3215 is sleeved on the limiting rods 3214, so that the pressing block 3215 can press the tail of the packaging bag to prevent the packaging bag from collapsing.

[0048] More preferably, a bag pressing mechanism 324 is provided above the head end of the bag storage 321. The bag pressing mechanism 324 includes a pressing rod 3241. One end of the pressing rod 3241 is fixedly provided with a swing seat 3242. 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 pressing rod 3241 always presses the packaging bag on the bag storage 321 tightly under the elastic action of the elastic component 3243, ensuring that the packaging bags are stacked neatly and stably.

[0049] In this embodiment, a lifting drive device is provided on one side of the bag storage 321. The lifting drive device is preferably a lead 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 top layer of packaging bags in the bag storage 322. The bag feeding mechanism is set between the bag storage 321 and the turntable. The bag feeding mechanism includes a bag feeding claw and a swing arm drive device. In this embodiment, the swing arm drive device is fixedly installed on one side of the base. It is preferably a motor. Its output shaft is fixedly equipped with a swing arm. The bag feeding claw is set on the swing arm. In this embodiment, the bag feeding mechanism uses pneumatic fingers so that the swing arm drive device can link with the bag feeding claw to grab the packaging bag on the bag suction nozzle 322 and then send the packaging bag to the bag clamping mechanism 36 for clamping.

[0050] The bag clamping mechanism 36 includes a first bag clamping claw and a second bag clamping claw fixedly mounted on a turntable. In this embodiment, the first bag clamping claw and the second bag clamping claw are preferably pneumatic fingers, which clamp the two sides of the bag opening of the packaging bag respectively. A gap driving mechanism is provided between the first bag clamping claw and the second bag clamping claw, which drives the first bag clamping claw and the second bag clamping claw to move closer or further apart. In this embodiment, the gap driving mechanism is a conventional structure and will not be described again here.

[0051] Furthermore, in this embodiment, the bag opening mechanism 33 includes a first bag opening nozzle and a second bag opening nozzle respectively disposed on the front and rear sides of the packaging bag. The first bag opening nozzle and the second bag opening nozzle are driven by a bag opening driving device to move close together or separate. In this embodiment, the bag opening driving device is preferably a cylinder. After the turntable sends the packaging bag on the bag clamping mechanism 36 between the first bag opening nozzle and the second bag opening nozzle, the bag opening driving device drives the first bag opening nozzle and the second bag opening nozzle to move close together and respectively suck up the front and rear bag surfaces of the packaging bag. Then, the bag opening driving device drives the first bag opening nozzle and the second bag opening nozzle to move separate, separating the front and rear bag surfaces of the packaging bag opening, thereby ensuring that the subsequent packaging bag filling work can be carried out.

[0052] Furthermore, a bag-supporting arm is rotatably mounted on the turntable, and a bag-supporting mechanism is mounted at the end of the bag-supporting arm away from the turntable. The bag-supporting mechanism includes a first bag-supporting plate and a second bag-supporting plate arranged opposite each other. The bag-insertion driving device drives the bag-supporting arm to lower and insert the first bag-supporting plate and the second bag-supporting plate into the opening of the packaging bag. The bag-supporting driving device then drives the first bag-supporting plate and the second bag-supporting plate to move close together or away from each other to support the opening of the packaging bag. In this embodiment, the bag-insertion driving device and the bag-supporting driving device are preferably cylinders. The bag-supporting mechanism is existing technology and will not be described again here.

[0053] In actual operation, after the first and second opening nozzles open the bag opening, the bag insertion drive device drives the bag support arm to insert the first and second bag insertion pieces into the bag opening. Then, the bag support drive device drives the first and second bag insertion pieces to move apart and support the bag opening. The bag support arm rotates with the turntable, causing the first and second bag insertion pieces to move from the bag opening mechanism 33 to the filling mechanism 34 along with the bag. This ensures that the first and second bag insertion pieces keep the bag opening open while the filling mechanism 34 is filling the bag with food. After filling is complete, the first and second bag insertion pieces rise under the drive of the bag support arm and return to the bag opening mechanism 33 for the next bag opening action.

[0054] The filling mechanism 34 includes a hopper, which is vertically and flexibly disposed on one side of the turntable. When the packaging bag moves to the bottom of the hopper, the hopper is driven to descend by the feeding drive device, so that the feeding port of the hopper extends into the opening of the packaging bag. The hopper receives the pellets sent out by the first feeding channel and guides the pellets into the packaging bag through the hopper, thereby completing the automatic filling of the pellets. In this embodiment, the feeding drive device is fixedly installed on one side of the turntable, preferably a cylinder, and its telescopic end is fixedly connected to the hopper.

[0055] The leveling mechanism 35 includes a first leveling push plate and a second leveling push plate arranged opposite to each other, and a telescopic cylinder is fixedly installed on one side of the turntable. The telescopic end of the cylinder is fixedly connected to the first leveling push plate / second leveling push plate. The telescopic cylinder drives the first leveling push plate and the second leveling push plate to move close to each other so as to flatten the balls in the packaging bag, so as to facilitate the subsequent vacuum sealing work.

[0056] In this embodiment, the vacuum sealing device can refer to a fully automatic vacuum sealing machine disclosed in Chinese Utility Model Publication No. CN205150346U. In this embodiment, the feeding mechanism between the turntable and the vacuum sealing device 4 picks up the filled packaging bag from the bag clamping mechanism and sends it into the vacuum sealing cavity of the vacuum sealing device 4. The grippers in the vacuum sealing cavity clamp the filled packaging bag, and the vacuum pump evacuates the packaging bag in the vacuum sealing cavity. Then, the sealing device in the vacuum sealing cavity 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 prior art, it will not be described again in this embodiment.

[0057] The detection and conveying device 5 includes a conveyor belt and a metal detection module. The metal detection module is located above the conveyor belt. In this embodiment, the metal detection module preferably adopts a metal detector. The conveyor belt receives the vacuum-sealed bags from the vacuum sealing device and conveys them to the designated workstation so that the staff can carry out the boxing work. The metal detection module is used to detect whether there is metal inside the bags, thereby ensuring food safety.

[0058] The above settings enable the synchronous operation of each device, that is, to connect the various workstations of the control system, realize full-process automation, greatly improve production efficiency, avoid contamination caused by direct human contact with food, and ensure food safety and hygiene.

[0059] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art 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. All modifications made according to the spirit of the main technical solution of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic meatball metering and vacuum packaging production line, characterized in that, The system includes a lifting belt (1), a combined scale (2), and a control unit. The combined scale (2) is located between the packaging device (3) and the lifting belt (1). The control unit controls the lifting belt (1) to lift and feed the formed balls into the combined scale (2). The combined scale (2) includes an upper feed hopper (21) that is connected vertically, a weighing mechanism (22), and a discharge hopper (23). A main vibrating plate (24) is located below the discharge port of the upper feed hopper (21). The main vibrating plate (24) and... There is a guide slit between the upper feed hopper (21) for the balls to flow out. A line vibrating plate (25) is provided between the guide slit and the weighing mechanism (22). The control unit controls the line vibration drive device to drive the line vibrating plate (25) to vibrate and convey the balls from the guide slit to the weighing mechanism (22). The weighing mechanism (22) puts the weighed balls into the discharge hopper so that the discharge hopper (23) sends the weighed balls into the packaging device (3) for bagging. A flow limiting mechanism (26) is movably installed above the discharge end of the linear vibrating plate (25). The flow limiting mechanism (26) allows the pellets on the linear vibrating plate (25) to fall evenly into the weighing mechanism (22). The flow limiting mechanism (26) includes a flow limiting plate (261), which is made of flexible material. A support ring frame is mounted above the weighing mechanism (22). A connector (262) is fixedly connected to the support ring frame on the flow limiting plate (261), and a limit seat (263) is provided on the support ring frame for limiting cooperation with the connector (262). The packaging device (3) includes a turntable, a bag feeding mechanism (32), a bag opening mechanism (33), and a filling mechanism (34). The outer periphery of the turntable is provided with several bag clamping mechanisms (36) for clamping the packaging bags fed out by the bag feeding mechanism (32) and feeding the packaging bags sequentially through the bag opening mechanism (33), the filling mechanism (34), and the vacuum sealing device (4) under the rotation of the turntable. 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 vertically and vertically positioned above the bag storage (321) to suck up the topmost packaging bag on the bag storage (321). The bag feeding mechanism (323) is positioned between the bag suction nozzle (322) and the turntable so that the bag feeding mechanism (323) can clamp the packaging bag on the bag suction nozzle (322) and allow it to be clamped by the bag clamping mechanism (36). A bag pressing mechanism (324) is provided above the head end of the bag storage (321) to press the packaging bag on the bag storage (321).

2. The automatic metering and vacuum packaging production line for meatballs according to claim 1, characterized in that, The bag pressing mechanism (324) includes a pressing rod (3241), one end of which is fixedly provided with a swing seat (3242). The swing seat (3242) is rotatably connected to the bag storage (321), and an elastic member (3243) is provided between the swing seat (3242) and the bag storage (321) so that the pressing rod (3241) presses the packaging bag on the bag storage (321) under the elastic action of the elastic member (3243).

3. The automatic metering and vacuum packaging production line for meatballs 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 located below the end of the linear vibrating plate (25), and the weighing hopper (222) is located below the storage hopper (221). The storage hopper (221) and the weighing hopper (222) are respectively hung on the periphery of the mounting frame (223). The storage hopper (221) is used to temporarily store the pellets sent out by the linear vibrating plate (25), and the control unit controls the storage hopper (221) to put the pellets 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 baffle (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 baffle (2221) of the weighing hopper (222). The mounting frame (223) is provided with a weighing detection module for detecting the weight of the pellets in the weighing hopper (222).

4. The automatic metering and vacuum packaging production line for meatballs according to claim 1, characterized in that, It also includes a vacuum sealing device (4) and a detection conveying device (5). The detection conveying device (5) is located on one side of the vacuum sealing device (4). The control unit controls the vacuum sealing device (4) to vacuum seal the packaging bag containing the meatballs on the packaging device (3) and send the sealed packaging bag into the detection conveying device (5). The detection and conveying device (5) includes a conveyor belt and a metal detection module. The metal detection module is located above the conveyor belt. The conveyor belt conveys the vacuum-sealed packaging bag and detects whether there is metal inside the packaging bag through the metal detection module.

5. The automatic metering and vacuum packaging production line for meatballs according to claim 1, characterized in that, The connector (262) has a strip groove (2621), and the connecting component passes through the strip groove (2621) through the support ring frame (28) and is fixedly connected to the limiting seat (263). The upper and lower sides 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).

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

7. The automatic metering and vacuum packaging production line for meatballs according to claim 1, characterized in that, The discharge hopper (23) is provided with a first discharge channel (231) and a second discharge channel (232) below it. The discharge port of the discharge hopper (23) is respectively hinged with a first discharge baffle (233) and a second discharge baffle (234). The first discharge baffle (233) or the second discharge baffle (234) is opened and closed by the opening and closing drive device, so that the balls in the discharge hopper (23) fall into the first discharge channel (231) or the second discharge channel (232).

8. The automatic metering and vacuum packaging production line for meatballs according to claim 1, characterized in that, The bag storage unit (321) includes a base (3211), a front baffle (3212), and a side plate (3213). The front baffle (3212) is fixedly disposed at the front end of the base (3211). The side plates (3213) are a pair and are slidably disposed on both sides of the base (3211) so that the packaging bags are stacked between the front baffle (3212) and the side plates (3213). A pair of limiting rods (3214) are provided on the rear end of the base (3211), and a pressing block (3215) is sleeved on the limiting rod (3214) for pressing the tail of the packaging bag.

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