An automatic vacuum packaging production line

Abstract

The present invention belongs to the technical field of packaging production lines, specifically, an automatic vacuum packaging production line, including a first production line and a second production line, wherein a feeder and a vacuum machine are arranged on the first production line, and a clamp that moves with a conveyor belt is also arranged on the first production line, and a loading bag for loading materials is placed inside the clamp; the present invention starts to shake up and down slightly with the loading bag through a placing frame by a first electric push rod, so that the materials falling into the loading bag are evenly shaken, the gap between the materials is reduced, and more materials are conveniently loaded. When the loading bag is full of materials, the force of the electric push rod moving up and down is increased, so that the placing frame moves with the connecting plate toward the direction of the slide plate, and the clamps on the rotating plate slide toward each other due to the attraction of opposites, thereby clamping the port of the loading bag, and then when the loading bag is violently shaken again, the materials inside it will not easily spill out through the port.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging production lines, in particular to an automatic vacuum packaging production line. Background Art

[0002] The vacuum packaging production line is a technical equipment that can efficiently, quickly and accurately package various foods, medicines and other items. It realizes highly automated control of the packaging process through computer control, sensor monitoring, mechanical transmission and other technical means, greatly improving production efficiency and product quality. The vacuum packaging production line is generally composed of a series of systems such as material conveying system, automatic weighing system, sealing machine, etc.

[0003] When vacuum packaging production lines are packaging granular foods such as rice, beans, etc., the gaps between the particles will result in uneven filling. First, in the subsequent vacuum sealing process, the air in the gaps is difficult to be completely discharged, affecting the quality and effect of vacuum packaging. Secondly, the gaps between the particles not only affect the appearance of the packaging, but may also cause the air inside the packaging to not be completely extracted, thereby affecting the shelf life and quality of the product. At the same time, during vacuum sealing, the remaining air may expand and bulge due to high temperature and pressure changes, causing the packaging bag to be damaged or deformed.

[0004] To this end, the present invention provides an automatic vacuum packaging production line. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: an automatic vacuum packaging production line described in the present invention comprises a first production line and a second production line, the first production line is provided with a feeder and a vacuum machine, the first production line is also provided with a fixture moving with a conveyor belt, a loading bag for loading materials is placed inside the fixture; a vibration mechanism for shaking the materials in the loading bag is arranged inside the fixture; the vibration mechanism comprises a first electric push rod fixedly mounted at the bottom of the fixture, a "U"-shaped placement frame is fixedly mounted on the output end of the first electric push rod, the loading bag is in the placement frame, a support rod slidably connected to the fixture is fixedly mounted at the bottom of the placement frame, and two gaskets are symmetrically mounted inside the placement frame; two cavities are symmetrically opened inside the fixture, a connecting plate is fixedly mounted on the side wall of the placement frame, the connecting plate is in the cavity, a slide plate is slidably connected inside the cavity, a limit block made of rubber material is fixedly mounted on the bottom of the slide plate, a limit groove matched with the limit block is opened on the top of the connecting plate, and a clamping component for sealing the loading bag is arranged on the top of the slide plate.

[0007] Furthermore, the clamping assembly includes a rotating plate rotatably connected to the skateboard, and a receiving groove is provided on one side of the two rotating plates close to each other. The interior of the receiving groove is slidably connected to a clamping plate made of magnetic material through a spring, and the clamping plate slides in the rotating plate through a sliding rod.

[0008] Furthermore, an air-blowing quick-drying mechanism is provided inside the cavity, and the quick-drying mechanism includes a hollow elastic block fixedly installed in the cavity, a connecting pipe with a one-way valve is fixedly installed on the top of the elastic block, a plurality of baffles are fixedly installed on the top of the clamp, one end of the connecting pipe passes through the baffle and is fixedly installed with an inclined rectangular plate, an air jet hole inclined upward is opened on a side of the rectangular plate away from the connecting pipe, the air jet hole is connected with the inside of the connecting pipe, and an air inlet pipe with a one-way valve is fixedly installed on one side of the elastic block.

[0009] Furthermore, the interior of the connecting pipe is electrically connected to a heating wire, and an arc-shaped guide plate is fixedly mounted on one side of the rectangular plate close to the air injection hole.

[0010] Furthermore, a pressing plate is fixedly mounted on one end of the connecting plate away from the placement frame, and the top and bottom of the pressing plate are both arc-shaped.

[0011] Furthermore, a guide assembly is provided on the side where the two baffles are close to each other, and the guide assembly includes a guide plate rotatably connected to the baffle through a torsion spring, and a first elastic ball is fixedly installed between the guide plate and the baffle, and a shrinkage hole is opened on the surface of the first elastic ball.

[0012] Furthermore, a detection mechanism is arranged between the first production line and the second production line, the detection mechanism comprises a support table, an electronic scale is installed on the top of the support table, an inclined flow guide component is also arranged on the top of the support table, a storage box is fixedly installed on one side of the support table, a storage opening is opened on the side of the storage box close to the electronic scale, a second electric push rod is fixedly installed on one side of the first production line, and an arc-shaped guide plate is fixedly installed on the side of the clamp close to the second production line; a buffer component is also arranged on the side of the storage box close to the electronic scale.

[0013] Furthermore, the guide assembly includes a fixed frame fixedly installed on the support table, a magnetic block is slidably connected to the inside of the fixed frame, and an electromagnetic coil is electrically connected to the inside of the fixed frame; an air intake assembly is arranged on one side of the fixed frame, and an air outlet assembly is arranged on the side of the fixed frame away from the air intake assembly.

[0014] Furthermore, the buffer assembly includes a connecting rod slidably connected to the storage box through an elastic member, a triangular buffer block is fixedly mounted on one end of the connecting rod away from the storage box, and a plurality of rolling columns are rotatably connected to the surface of the buffer block.

[0015] Furthermore, the air intake component includes an air intake pipe connected to the interior of the fixed frame, one end of the air intake pipe away from the fixed frame is fixedly connected to the first production line, a waterproof and breathable cloth is fixedly installed inside the end of the air intake pipe away from the fixed frame, and a storage box below the air intake pipe port is fixedly installed on the top of the first production line; the air outlet component includes an air outlet pipe connected to the interior of the fixed frame, one end of the air outlet pipe away from the fixed frame is fixedly connected to the first production line, a fixed tube is fixedly installed on one side of the clamp, one end of the fixed tube is aligned with the output rod of the first electric push rod, an end of the fixed tube close to the first electric push rod is rotatably connected to an end cover through a torsion spring, and a hollow second elastic ball is fixedly installed between the end cover and the first fixed tube; the magnetic block and the fixed frame are sealed and slidably connected.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. In the automatic vacuum packaging production line described in the present invention, the first electric push rod starts to slightly shake up and down with the loading bag through the placement frame, so that the materials falling into the loading bag are evenly shaken, the gaps between the materials are reduced, and more materials are convenient to load. When the loading bag is full of materials, the force of the electric push rod moving up and down is increased, so that the placement frame moves with the connecting plate in the direction of the slide plate, and the clamping plates on the rotating plate slide towards each other due to the attraction of opposites, thereby clamping the port of the loading bag, and then when the loading bag is violently shaken again, the materials inside it will not easily spill out through the port. Through the vibration mechanism and clamping assembly designed as above, the loading bag is violently shaken before sealing, thereby reducing the gaps between the materials and avoiding the inability to effectively discharge the air in the bag during vacuum sealing due to the gaps, thereby affecting the quality and effect of vacuum packaging.

[0018] 2. The automatic vacuum packaging production line described in the present invention utilizes a pressing plate to squeeze the elastic block in the cavity, so that the gas in the elastic frame enters the jet hole of the rectangular plate through the connecting tube, and the heating wire in the connecting tube has been pre-activated, so the gas will contact the hot air of the heating wire when passing through the connecting tube and drive it to be blown out. The blown hot air will be guided downward by the arc-shaped guide plate. The blown hot air helps to soften the material of the loading bag so that it fits the food and seals better, improves the sealing effect, and prevents air, moisture or pollutants from entering the package. At the same time, the hot air can increase the temperature of the sealing area of ​​the loading bag port, which helps to make the heat seal more secure and enhance the integrity of the package. The installed arc-shaped guide plate helps the fallen food fall into the loading bag.

[0019] 3. The automatic vacuum packaging production line described in the present invention allows the output end of the second electric push rod to push the vacuum-packed loading bag to the electronic scale of the support table, and utilizes the buffer component to protect the electronic scale, thereby preventing the loading bag from falling directly on the electronic scale and causing damage to the electronic scale. The electronic scale weighs the loading bag to detect whether there is any leakage. Loading bags that are not leaking will enter the second production line, while loading bags that are leaking will be introduced into a storage box. The suction component that is set can recycle the materials scattered during unloading, and the air outlet component can realize the maintenance of the first electric push rod that is used frequently, thereby increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the first production line in the present invention;

[0022] Figure 2 It is a structural schematic diagram of the second production line in the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the loading bag in the present invention;

[0024] Figure 4 It is a schematic diagram of the side cross-sectional structure of the clamp in the present invention;

[0025] Figure 5 It is a structural schematic diagram of the connecting plate in the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the rotating plate in the present invention;

[0027] Figure 7 The present invention Figure 3 Schematic diagram of the structure at B;

[0028] Figure 8 is a schematic diagram of a side cross-sectional structure of a baffle in the present invention;

[0029] Fig. 9 The present invention Figure 1 A schematic diagram of the structure at A;

[0030] Fig.10 It is a schematic cross-sectional structural diagram of the fixing frame in the present invention;

[0031] Fig.11 It is a partial structural schematic diagram of the air intake pipe in the present invention;

[0032] Fig.12 It is a schematic diagram of the partial cross-sectional structure of the fixed pipe in the present invention.

[0033] In the figure: 1. First production line; 2. Unloading machine; 3. Vacuum machine; 4. Clamp; 5. Loading bag; 6. Second production line;

[0034] 10. Vibration mechanism; 11. First electric push rod; 12. Placement frame; 13. Support rod; 14. Gasket; 15. Cavity; 16. Connecting plate; 17. Slide plate; 18. Limit block; 19. Limit groove;

[0035] 20. Clamping assembly; 21. Rotating plate; 22. Storage slot; 23. Clamping plate; 24. Sliding rod; 25. Spring;

[0036] 30. quick-drying mechanism; 31. elastic block; 32. connecting pipe; 33. baffle; 34. rectangular plate; 35. jet hole; 36. heating wire; 37. air inlet pipe; 38. pressing plate; 39. guide plate;

[0037] 40. guide assembly; 41. guide plate; 42. first elastic ball;

[0038] 50. Detection mechanism; 51. Support platform; 52. Electronic scale; 53. Flow guide assembly; 54. Second electric push rod; 55. Storage box; 56. Storage port; 57. Buffer assembly; 58. Air suction assembly; 59. Air outlet assembly;

[0039] 531, fixed frame; 532, magnetic block; 533, electromagnetic coil;

[0040] 571, connecting rod; 572, buffer block; 573, rolling column;

[0041] 581. Inhalation tube; 582. Waterproof breathable cloth; 583. Storage box;

[0042] 591, air outlet pipe; 592, fixed pipe; 593, second elastic ball; 594, end cover;

[0043] 60. Guide plate. DETAILED DESCRIPTION

[0044] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0045] like Figures 1 to 12As shown, an automatic vacuum packaging production line described in an embodiment of the present invention includes a first production line 1 and a second production line 6. A feeder 2 and a vacuum machine 3 are provided on the first production line 1. A clamp 4 that moves following the conveyor belt is also provided on the first production line 1. A loading bag 5 for loading materials is placed inside the clamp 4. A vibration mechanism 10 for shaking the materials in the loading bag 5 is provided inside the clamp 4. The vibration mechanism 10 includes a first electric push rod 11 fixedly installed at the bottom of the clamp 4. A "U"-shaped placement frame 12 is fixedly installed at the output end of the first electric push rod 11. The loading bag 5 is in the placement frame 12. A support rod 13 slidably connected to the clamp 4 is fixedly installed at the bottom of the placement frame 12. Two gaskets 14 are symmetrically installed inside the placement frame 12.

[0046] Specifically, two cavities 15 are symmetrically provided inside the clamp 4, a connecting plate 16 is fixedly installed on the side wall of the placement frame 12, the connecting plate 16 is in the cavity 15, a slide plate 17 is slidably connected inside the cavity 15, a limit block 18 made of rubber material is fixedly installed at the bottom of the slide plate 17, a limit groove 19 adapted to the limit block 18 is provided on the top of the connecting plate 16, and a clamping assembly 20 for sealing the loading bag 5 is provided on the top of the slide plate 17. The clamping assembly 20 includes a rotating plate 21 rotatably connected to the slide plate 17, a receiving groove 22 is provided on the side of the two rotating plates 21 close to each other, a clamping plate 23 made of magnetic material is slidably connected inside the storage groove 22 through a spring 25, and the clamping plate 23 slides inside the rotating plate 21 through a slide rod 24.

[0047] During operation, the expanded loading bag 5 is placed in the placement frame 12, and the placement frame 12 and the gasket 14 are used to temporarily fix the loading bag 5. As the conveyor belt of the first production line 1 moves with the clamp 4 and the loading bag 5, the loading bag 5 will move to the bottom of the unloader 2, and the material will be injected into the loading bag 5 through the unloader 2. As the material continues to be injected into the loading bag 5, the first electric push rod 11 at the bottom of the clamp 4 is started, and the first electric push rod 11 starts to slightly shake up and down with the loading bag 5 through the placement frame 12 (controlled by PLC, this is the prior art and will not be described in detail here), so that the material falling into the loading bag 5 is evenly shaken, the gap between the materials is reduced, and more materials are conveniently loaded. When the placement frame 12 moves up and down, the support rod 13 at its bottom will also move with it. The support rod 13 plays the role of auxiliary support to ensure that the placement frame 12 shakes up and down with the loading bag 5 stably.

[0048] When the loading bag 5 is filled with materials, the clamp 4 will move the loading bag 5 filled with materials to the bottom of the vacuum machine 3. At this time, the force of the electric push rod moving up and down is increased (using PLC control as in the same way), so that the placement frame 12 moves with the connecting plate 16 in the direction of the slide plate 17, and the rubber limit block 18 at the bottom of the slide plate 17 will enter the limit groove 19 of the connecting plate 16. The limit block 18 will be squeezed and deformed when entering the limit groove 19, so as to be engaged with the limit groove 19 of the connecting plate 16. At this time, when the connecting plate 16 continues to move upward, it will move with the slide plate 17 and the rotating plate 21. The rotating plate 21 will rotate and slide out in the direction of the placement frame 12 due to the shape of the cavity 15. When both rotating plates 21 slide out of the cavity 15, the clamping plate 23 on the rotating plate 21 slides in the direction of approaching each other due to the attraction between opposite poles, thereby clamping the port of the loading bag 5. Then, when the loading bag 5 is violently shaken again, the material inside it will not easily spill out through the port. After the violent shaking, the connecting plate 16 brings the rotating plate 21 back to its original position. When the two rotating plates 21 are reset, the two clamping plates 23 are also separated, so that the port is reopened without affecting the subsequent vacuum sealing of the loading bag 5 by the vacuum machine 3.

[0049] By means of the vibration mechanism 10 designed as above, the loading bag 5 is violently shaken before sealing, thereby reducing the gaps between materials and avoiding the inability to effectively discharge the air in the bag during vacuum sealing due to the gaps, thereby affecting the quality and effect of the vacuum packaging.

[0050] The cavity 15 is provided with an air-blowing quick-drying mechanism 30, which includes a hollow elastic block 31 fixedly installed in the cavity 15, a connecting pipe 32 with a one-way valve fixedly installed on the top of the elastic block 31, a plurality of baffles 33 fixedly installed on the top of the clamp 4, one end of the connecting pipe 32 passes through the baffle 33 and is fixedly installed with an inclined rectangular plate 34, a side of the rectangular plate 34 away from the connecting pipe 32 is provided with an upwardly inclined jet hole 35, the jet hole 35 is communicated with the inside of the connecting pipe 32, and an air inlet pipe 37 with a one-way valve is fixedly installed on one side of the elastic block 31.

[0051] Specifically, the interior of the connecting tube 32 is electrically connected to a heating wire 36, and a curved guide plate 39 is fixedly installed on one side of the rectangular plate 34 close to the air injection hole 35. A pressing plate 38 is fixedly installed on one end of the connecting plate 16 away from the placement frame 12, and the top and bottom of the pressing plate 38 are both curved.

[0052] Specifically, a guide assembly 40 is provided on the side where the two baffles 33 are close to each other. The guide assembly 40 includes a guide plate 41 rotatably connected to the baffle 33 through a torsion spring. A first elastic ball 42 is fixedly installed between the guide plate 41 and the baffle 33, and a shrinkage hole is opened on the surface of the first elastic ball 42.

[0053] When working, the connecting plate 16 will move with the two curved pressing plates 38 (the two sides of the pressing plates 38 are designed to be curved in order to better protect the elastic block 31 and prevent the elastic frame from breaking after being squeezed in multiple stages). The pressing plates 38 are used to squeeze the elastic block 31 in the cavity 15, so that the gas in the elastic frame enters the air injection hole 35 of the rectangular plate 34 through the connecting tube 32. The heating wire 36 in the connecting tube 32 has been started in advance, so when the gas passes through the connecting tube 32, it will contact the hot air of the heating wire 36 and drive it to be blown out, so that the blown gas becomes hot air. The blown hot air will be guided downward (at the port of the loading bag 5) by the curved guide plate 39. The blown hot air helps to soften the material of the loading bag 5, so that it fits the food and seals better, improves the sealing effect, and prevents air, moisture or pollutants from entering the package. At the same time, the hot air can increase the temperature of the sealing area of ​​the port of the loading bag 5, which helps to make the heat seal more firm and enhance the integrity of the package. When the pressing plate 38 no longer squeezes the elastic block 31, air is replenished through the air inlet pipe 37, thereby facilitating subsequent squeezing and blowing.

[0054] Since there is a gap between the clamp 4 and the placing frame 12, the arc-shaped guide plate 41 is installed to assist the falling food to fall into the loading bag 5. At the same time, the first elastic ball 42 is provided to play a buffering role to prevent the food from falling on the guide plate 41 without buffering and being broken.

[0055] A detection mechanism 50 is set between the first production line 1 and the second production line 6. The detection mechanism 50 includes a support platform 51, an electronic scale 52 is installed on the top of the support platform 51, and an inclined flow guide component 53 is also set on the top of the support platform 51. A storage box 55 is fixedly installed on one side of the support platform 51, and a storage port 56 is opened on the side of the storage box 55 close to the electronic scale 52. A second electric push rod 54 is fixedly installed on one side of the first production line 1, and an arc-shaped guide plate 60 is fixedly installed on the side of the fixture 4 close to the second production line 6. The flow guide component 53 includes a fixed frame 531 fixedly installed with the support platform 51, a magnetic block 532 is slidably connected inside the fixed frame 531, and an electromagnetic coil 533 is electrically connected inside the fixed frame 531.

[0056] Specifically, the buffer assembly 57 includes a connecting rod 571 slidably connected to the storage box 55 through an elastic member, and a triangular buffer block 572 is fixedly installed at one end of the connecting rod 571 away from the storage box 55, and a plurality of rolling posts 573 are rotatably connected to the surface of the buffer block 572. The air intake assembly 58 includes an air intake pipe 581 connected to the interior of the fixed frame 531, one end of the air intake pipe 581 away from the fixed frame 531 is fixedly connected to the first production line 1, a waterproof and breathable cloth 582 is fixedly installed inside the end of the air intake pipe 581 away from the fixed frame 531, and a storage box 583 below the port of the air intake pipe 581 is fixedly installed on the top of the first production line 1; the air outlet assembly 59 includes an air outlet pipe 591 connected to the interior of the fixed frame 531, one end of the air outlet pipe 591 away from the fixed frame 531 is fixedly connected to the first production line 1, a fixed pipe 592 is fixedly installed on one side of the clamp 4, one end of the fixed pipe 592 is aligned with the output rod of the first electric push rod 11, and an end cover 594 is rotatably connected to the end of the fixed pipe 592 close to the first electric push rod 11 through a torsion spring, and a hollow second elastic ball 593 is fixedly installed between the end cover 594 and the first fixed pipe 592; the magnetic block 532 and the fixed frame 531 are sealed and slidably connected.

[0057] During operation, after the vacuum packaging of the loading bag 5 is completed, the clamp 4 will continue to move with the loading bag 5 to the second electric push rod 54, so that the loading bag 5 and the second electric push rod 54 are in the same straight line. At this time, the electric push rod is started, and the output end of the second electric push rod 54 pushes the vacuum-packed loading bag 5 to the electronic scale 52 of the support table 51. Since the loading bag 5 is loaded vertically, the center of gravity will change and fall when it is pushed by the second electric push rod 54 and is no longer constrained by the placement frame 12. The falling loading bag 5 will contact the arc-shaped guide plate 60, and thus be guided by the guide plate 60 to fall in the direction of the storage box 55. When the loading bag 5 falls, it will contact the inclined surface of the buffer block 572 to prevent the loading bag 5 from falling directly on the electronic scale 52 and causing damage to the electronic scale 52. As the loading bag 5 is tipped over and in coordination with the rolling column 573 on the buffer block 572, the buffer block 572 will slide and retract into the storage box 55, thereby ensuring that the loading bag 5 can slowly fall on the electronic scale 52, and the buffer block 572 will be reset under the action of the elastic member for the next use. The loading bag 5 is weighed by the electronic scale 52 to detect whether there is leakage (the method of using the electronic scale 52 to detect whether there is leakage is called the weighing method leakage detection, which belongs to the prior art and will not be described in detail here). When there is no leakage in the loading bag 5, the second electric push rod 54 is started again, and the second electric push rod 54 pushes the loading bag 5 to the second production line 6. Since there is a gap between the second production line 6 and the support platform 51, the magnetic block 532 is used to make up for the gap, so that the loading bag 5 is conveniently pushed to the second production line 6. It should be noted that the first production line 1, the second production line 6, the electronic scale 52 and the magnetic block 532 are all on the same plane, so the translation movement of the loading bag 5 can be ensured.

[0058] When the weight detected by the electronic scale 52 does not meet the preset value, it means that the loading bag 5 is leaking. At this time, the electromagnetic coil 533 in the fixed frame 531 starts to be energized to restore the magnetism. The restored magnetism of the electromagnetic coil 533 will cause the magnetic block 532 in the fixed frame 531 to slide away, thereby forming an inclined obstacle between the electronic scale 52 and the second production line 6. When the second electric push rod 54 continues to push the loading bag 5 to move, it will be guided by the inclined magnetic block 532 to the storage port 56 of the storage box 55, and then fall into the storage box 55 for collection and repackaging.

[0059] Since the magnetic block 532 and the fixed frame 531 are sealed and slidably connected, when the magnetic block 532 moves in the direction of separating from the electromagnetic coil 533, the external gas will be sucked into the fixed frame 531 through the suction pipe 581. When the suction pipe 581 sucks in the gas, one end of the suction pipe 581 is aligned with the placement frame 12, so that the food scattered by the unloader 2 when unloading can be sucked in (during the vacuum packaging vacuuming process or the transportation of the loading bag 5, the rice and other granular foods leaked and trapped), so that the food scattered outside the loading bag 5 is sucked toward the waterproof breathable cloth 582 of the suction pipe 581, and the gas will enter the fixed frame 531 through the waterproof breathable cloth 582, while the food will be blocked at the waterproof breathable cloth 582, and fall into the storage box 583 for storage when there is no suction.

[0060] When the magnetic block 532 slides back to the fixed frame 531, the gas in the fixed frame 531 will be squeezed by the magnetic block 532 into the air outlet pipe 591. When the clamp 4 moves to the appropriate position, it will be in the same line as the second electric push rod 54. At this time, the fixed tube 592 on one side of the clamp 4 will fit with one end of the air outlet pipe 591. Therefore, the gas ejected from the air outlet pipe 591 will enter the fixed tube 592 and rotate to open the internal end cover 594 (made of lightweight material), allowing the end cover 594 to squeeze the second elastic ball 593 inside the fixed tube 592, so that the lubricating oil pre-stored in the second elastic ball 593 is sprayed to the output end of the first electric push rod 11 through the shrinkage hole.

[0061] The structure designed above can inspect the quality of the vacuum-packed loading bags 5 and remove unqualified loading bags 5. At the same time, the scattered materials during unloading can be recycled, and the first electric push rod 11 used frequently can be maintained to increase its service life.

[0062] Working principle: Place the expanded loading bag 5 into the placement frame 12, and use the placement frame 12 and the gasket 14 to temporarily fix the loading bag 5. As the conveyor belt of the first production line 1 moves with the clamp 4 and the loading bag 5, the loading bag 5 will move to the bottom of the unloader 2, and the material will be injected into the loading bag 5 through the unloader 2. As the material continues to be injected into the loading bag 5, start the first electric push rod 11 at the bottom of the clamp 4, and let the first electric push rod 11 start to slightly shake up and down with the loading bag 5 through the placement frame 12. When the placement frame 12 moves up and down, the support rod 13 at its bottom will also move with it, and the support rod 13 plays an auxiliary support role. When the loading bag 5 is filled with materials, the clamp 4 will move the loading bag 5 filled with materials to the bottom of the vacuum machine 3. At this time, the force of the electric push rod moving up and down is increased, so that the placement frame 12 moves with the connecting plate 16 in the direction of the slide plate 17, and the rubber limit block 18 at the bottom of the slide plate 17 enters the limit groove 19 of the connecting plate 16. The limit block 18 will be squeezed and deformed when entering the limit groove 19, so as to engage with the limit groove 19 of the connecting plate 16. At this time, when the connecting plate 16 continues to move upward, it will move with the slide plate 17 and the rotating plate 21. The rotating plate 21 will rotate and slide out in the direction of the placement frame 12 due to the shape of the cavity 15. When the two rotating plates 21 slide out of the cavity 15, the clamping plates 23 on the rotating plates 21 slide in the direction of approaching each other due to the attraction between opposite poles, thereby clamping the port of the loading bag 5. After the violent shaking is completed, the connecting plate 16 resets with the rotating plate 21, and the two clamping plates 23 of the two rotating plates 21 will also separate when they reset, so that the port is reopened, which does not affect the subsequent use of the vacuum machine 3 to vacuum seal the loading bag 5.

[0063] When the connecting plate 16 moves, it will move with the two arc-shaped pressing plates 38, and the pressing plates 38 will squeeze the elastic block 31 in the cavity 15, so that the gas in the elastic frame will enter the air injection hole 35 of the rectangular plate 34 through the connecting pipe 32. The heating wire 36 in the connecting pipe 32 has been started in advance, so when the gas passes through the connecting pipe 32, it will contact the hot air of the heating wire 36 and drive it to blow out. Since there is a gap between the clamp 4 and the placement frame 12, the arc-shaped guide plate 41 installed will help the fallen food fall into the loading bag 5.

[0064] After the vacuum packaging of the loading bag 5 is completed, the clamp 4 will continue to move with the loading bag 5 and reach the second electric push rod 54, so that the loading bag 5 and the second electric push rod 54 are in the same straight line. At this time, the electric push rod is started, and the output end of the second electric push rod 54 pushes the vacuum-packed loading bag 5 to the electronic scale 52 of the support table 51. Since the loading bag 5 is loaded vertically, the center of gravity will change and fall when it is pushed by the second electric push rod 54 and is no longer constrained by the placement frame 12. The falling loading bag 5 will contact the arc-shaped guide plate 60, and thus be guided by the guide plate 60 to fall in the direction of the storage box 55. As the loading bag 5 falls and cooperates with the rolling column 573 on the buffer block 572, the buffer block 572 will slide and retract into the storage box 55, thereby ensuring that the loading bag 5 can slowly fall on the electronic scale 52.

[0065] The electronic scale 52 is used to weigh the loading bag 5 to detect whether there is any leakage. When the loading bag 5 is not leaking, the second electric push rod 54 is continued to be started, and the second electric push rod 54 pushes the loading bag 5 to the second production line 6. Since there is a gap between the second production line 6 and the support platform 51, the magnetic block 532 is used to fill the gap, so that the loading bag 5 is conveniently pushed to the second production line 6. When the weight does not meet the preset value after the electronic scale 52 detects, it means that the loading bag 5 is leaking. At this time, the electromagnetic coil 533 in the fixed frame 531 starts to be energized to restore the magnetism. The restored magnetic electromagnetic coil 533 will cause the magnetic block 532 in the fixed frame 531 to slide away from the upper side, thereby forming an inclined obstacle between the electronic scale 52 and the second production line 6. When the second electric push rod 54 continues to push the loading bag 5 to move, it will be guided to the storage port 56 of the storage box 55 by the inclined magnetic block 532, so that it falls into the storage box 55 for collection and repackaging.

[0066] Since the magnetic block 532 and the fixed frame 531 are sealed and slidably connected, when the magnetic block 532 moves in the direction of separating from the electromagnetic coil 533, the external gas will be sucked into the fixed frame 531 through the suction pipe 581. When the suction pipe 581 sucks in the gas, one end of the suction pipe 581 is aligned with the placement frame 12, so that the food scattered by the unloader 2 during unloading can be sucked in, so that the food scattered outside the loading bag 5 is sucked toward the waterproof breathable cloth 582 of the suction pipe 581, and the gas will enter the fixed frame 531 through the waterproof breathable cloth 582, while the food will be blocked at the waterproof breathable cloth 582 and fall into the storage box 583 for storage when there is no suction. When the magnet 532 slides back into the fixed frame 531 to reset, the gas in the fixed frame 531 will be squeezed by the magnet 532 into the air outlet pipe 591. When the clamp 4 moves to the appropriate position, it will be in the same line as the second electric push rod 54. At this time, the fixed tube 592 on one side of the clamp 4 will fit with one end of the air outlet pipe 591. Therefore, the gas ejected from the air outlet pipe 591 will enter the fixed tube 592 and rotate to push open the internal end cover 594, allowing the end cover 594 to squeeze the second elastic ball 593 inside the fixed tube 592, so that the lubricating oil pre-stored in the second elastic ball 593 is sprayed to the output end of the first electric push rod 11 through the shrinkage hole.

[0067] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic vacuum packaging production line, comprising a first production line (1) and a second production line (6), wherein the first production line (1) is provided with a feeder (2) and a vacuum machine (3), and the first production line (1) is also provided with a clamp (4) that moves with a conveyor belt, wherein a loading bag (5) for loading materials is placed inside the clamp (4); Features: The clamp (4) is provided with a vibration mechanism (10) for shaking the material in the loading bag (5); The vibration mechanism (10) comprises a first electric push rod (11) fixedly mounted on the bottom of the clamp (4); a U-shaped placement frame (12) is fixedly mounted on the output end of the first electric push rod (11); the loading bag (5) is located in the placement frame (12); a support rod (13) slidably connected to the clamp (4) is fixedly mounted on the bottom of the placement frame (12); and two gaskets (14) are symmetrically mounted inside the placement frame (12); Two cavities (15) are symmetrically formed inside the clamp (4); a connecting plate (16) is fixedly mounted on the side wall of the placement frame (12); the connecting plate (16) is located inside the cavity (15); a slide plate (17) is slidably connected inside the cavity (15); a limit block (18) made of rubber is fixedly mounted on the bottom of the slide plate (17); a limit groove (19) matching the limit block (18) is formed on the top of the connecting plate (16); and a clamping assembly (20) for sealing the loading bag (5) is provided on the top of the slide plate (17); The clamping assembly (20) comprises a rotating plate (21) rotatably connected to the slide plate (17); a receiving groove (22) is provided on a side of the two rotating plates (21) close to each other; a clamping plate (23) made of a magnetic material is slidably connected inside the receiving groove (22) via a spring (25); and the clamping plate (23) slides inside the rotating plate (21) via a sliding rod (24); An air-blowing quick-drying mechanism (30) is arranged inside the cavity (15), and the quick-drying mechanism (30) comprises a hollow elastic block (31) fixedly mounted in the cavity (15); a connecting pipe (32) with a one-way valve is fixedly mounted on the top of the elastic block (31); a plurality of baffles (33) are fixedly mounted on the top of the clamp (4); one end of the connecting pipe (32) passes through the baffle (33) and is fixedly mounted with an inclined rectangular plate (34); a side of the rectangular plate (34) away from the connecting pipe (32) is provided with an air injection hole (35) inclined upward, and the air injection hole (35) is connected to the inside of the connecting pipe (32); an air inlet pipe (37) with a one-way valve is fixedly mounted on one side of the elastic block (31); A detection mechanism (50) is arranged between the first production line (1) and the second production line (6), the detection mechanism (50) comprising a support platform (51), an electronic scale (52) being installed on the top of the support platform (51), an inclined flow guide component (53) being also arranged on the top of the support platform (51), a storage box (55) being fixedly installed on one side of the support platform (51), a storage opening (56) being provided on a side of the storage box (55) close to the electronic scale (52), a second electric push rod (54) being fixedly installed on one side of the first production line (1), and an arc-shaped guide plate (60) being fixedly installed on a side of the clamp (4) close to the second production line (6); A buffer component (57) is also provided on one side of the storage box (55) close to the electronic scale (52); The flow guide assembly (53) comprises a fixed frame (531) fixedly mounted on the support platform (51), a magnetic block (532) being slidably connected inside the fixed frame (531), and an electromagnetic coil (533) being electrically connected inside the fixed frame (531); An air intake component (58) is provided on one side of the fixing frame (531), and an air outlet component (59) is provided on a side of the fixing frame (531) away from the air intake component (58).

2. An automatic vacuum packaging production line according to claim 1, Features: The interior of the connecting tube (32) is electrically connected to a heating wire (36), and a curved guide plate (39) is fixedly mounted on a surface of the rectangular plate (34) close to the air injection hole (35).

3. An automatic vacuum packaging production line according to claim 1, Features: A pressing plate (38) is fixedly mounted on one end of the connecting plate (16) away from the placement frame (12), and the top and bottom of the pressing plate (38) are both arc-shaped.

4. The automatic vacuum packaging production line according to claim 1, Features: A guide assembly (40) is provided on a surface of the two baffles (33) close to each other, the guide assembly (40) comprising a guide plate (41) rotatably connected to the baffle (33) via a torsion spring, a first elastic ball (42) fixedly mounted between the guide plate (41) and the baffle (33), and a shrinkage hole is provided on the surface of the first elastic ball (42).

5. The automatic vacuum packaging production line according to claim 1, Features: The buffer assembly (57) comprises a connecting rod (571) slidably connected to the storage box (55) via an elastic member, a triangular buffer block (572) being fixedly mounted on one end of the connecting rod (571) away from the storage box (55), and a plurality of rolling columns (573) being rotatably connected to the surface of the buffer block (572).

6. The automatic vacuum packaging production line according to claim 1, Features: The air suction component (58) comprises an air suction pipe (581) connected to the interior of the fixed frame (531); one end of the air suction pipe (581) away from the fixed frame (531) is fixedly connected to the first production line (1); a waterproof breathable cloth (582) is fixedly installed inside the end of the air suction pipe (581) away from the fixed frame (531); and a storage box (583) located below the port of the air suction pipe (581) is fixedly installed on the top of the first production line (1); The air outlet assembly (59) comprises an air outlet pipe (591) connected to the interior of the fixed frame (531); one end of the air outlet pipe (591) away from the fixed frame (531) is fixedly connected to the first production line (1); a fixed pipe (592) is fixedly installed on one side of the clamp (4); one end of the fixed pipe (592) is aligned with the output rod of the first electric push rod (11); an end of the fixed pipe (592) close to the first electric push rod (11) is rotatably connected to an end cover (594) via a torsion spring; a hollow second elastic ball (593) is fixedly installed between the end cover (594) and the first fixed pipe (592); The magnetic block (532) and the fixing frame (531) are sealed and slidably connected.

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