Vacuum-seal packaging machine

Abstract

The present application relates to the field of packaging equipment, especially to a vacuum sealing packaging machine, which comprises a vacuum part including a vacuum machine and a sliding mechanism, the vacuum machine is movably connected with the sliding mechanism and opposite to the gripper of the feeding turntable, the vacuum machine includes a positioning plate and a vacuum chamber, the positioning plate is movably connected with the vacuum chamber, the positioning plate includes a bottom plate and a movable plate, the improved device is that the push rod inside the bottom plate drives the movable plate to move horizontally, the vacuum efficiency is improved by the cooperation of the double-station vacuum chamber and the positioning plate, the food material for packaging is leveled by the bottom plate arranged on the surface of the movable plate, the shaping is performed by the shaping groove on the surface of the plate body, the sliding ring is leveled by the driving of the synchronous rod and the synchronous belt, the packaging is conveniently processed, the synchronous rod drives the chuck to rotate, the resistance generated by the first gear and the second gear makes the clamping teeth rotate, compact transmission is realized, the clamping teeth clamp the packaging, the packaging deformation is reduced during vacuumizing, and the packaging is more flat.

Description

Technical Field

[0001] This invention is a vacuum sealing packaging machine, belonging to the field of packaging equipment. Background Technology

[0002] Vacuum packaging machines are widely used preservation equipment in the food industry, mainly suitable for packaging meat products, seafood, cooked food, and nut snacks. Their working principle is as follows: after the food to be packaged is placed in a special packaging bag, negative pressure vacuum technology is used to remove the air from the bag, and heat sealing is immediately performed after a sealed vacuum environment is formed.

[0003] In a crucial stage of the packaging process, as a vacuum pump continuously extracts gas from the bag, the bag adaptively shrinks due to the pressure difference between the inside and outside. This characteristic is highly effective in preserving solid foods (such as meat products), but it presents significant limitations when packaging items containing rollable nuts (such as walnuts and almonds) or granular snacks. The moment the air is removed, the loose food particles shift irregularly due to the bag's shrinkage, making it difficult to maintain a regular final packaging shape. This deformation not only affects the aesthetics of the product display but also creates positioning difficulties in subsequent automated outer packaging processes (such as boxing and palletizing), reducing the overall efficiency of the packaging line. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a vacuum sealing and packaging machine to solve the above problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vacuum sealing and packaging machine, comprising: a machine body, wherein a rotating feeding turntable is mounted in the middle of the machine body; the feeding turntable, rotating clockwise, is sequentially provided with a material conveyor section, a feeding hopper, a feeding device, and a vacuum section; the material conveyor section is mounted on the side of the machine body; the feeding hopper cooperates with the movable rod of the feeding device, and the feeding device presses against the central groove of the feeding hopper; the feeding turntable rotatably connects the feeding hopper and the vacuum section; the vacuum section includes a vacuum machine and a sliding mechanism; the vacuum machine and the sliding mechanism... The vacuum unit is movably connected to the feed mechanism. The distributor of the vacuum unit is installed in the frame of the machine body, opposite to the gripper of the feed turntable. The vacuum machine includes a positioning plate and a vacuum chamber. The positioning plate is movably connected to the vacuum chamber. The positioning plate includes a base plate and a movable plate. The push rod inside the base plate drives the movable plate to move horizontally. A sealing device is installed on the surface of the movable plate. The sealing devices are respectively set on the surface of the movable plate and the inner surface of the vacuum chamber. The surface of the movable plate is symmetrically arranged with clamping heads. Each clamping head is matched with a drive rod. A sorting base plate is arranged between the clamping heads.

[0006] Preferably, a vacuum tube is provided on the top of the vacuum chamber, the vacuum tube is connected to the pump body inside the machine body, the positioning plate is connected to the slide rail of the sliding mechanism, and the positioning plate and the vacuum chamber are nested to form a vacuum cavity.

[0007] Preferably, the sorting base plate includes a clamp and a plate body. The plate body has a shaping groove in the middle and a sliding ring on its surface that is nested and slides with the shaping groove on the back of the plate body. The clamp is movably engaged with the plate body, and a driving device is provided on the rear surface of the plate body.

[0008] Preferably, the driving device includes a column, a groove is provided in the middle of the column, a synchronizing rod of the column is connected to a chuck and drives the chuck to rotate around the axis, the groove is slidably engaged with a sliding ring, the driving device is also provided with a synchronizing rod that engages with the sliding sleeves on both sides of the plate, the synchronizing rod is installed at the upper and lower ends of the chuck and is connected to it by a synchronizing belt, the synchronizing rod is connected to a second driver, and the second driver and the synchronizing rod are linked by a transmission belt.

[0009] Preferably, the chuck includes a movable frame composed of clamping teeth and a side arm. The clamping teeth are provided with pressure strips on the contact surface with the plate. A first gear and a second gear are installed at the movable shaft of the side arm. The first gear and the second gear are limited by a limiting side plate.

[0010] Preferably, the pressure strip is a cylindrical rubber strip.

[0011] Preferably, the shaft of the second gear mounted on the limiting side plate is nested with a top pressure head, and the top pressure head has a groove inside the shaft of the second gear that is spring-loaded.

[0012] Preferably, the surface of the slip ring is provided with a pressure plate.

[0013] Preferably, the slide rail is installed inside the vacuum section via a support crossbar, and a rack of the sliding mechanism is installed at the bottom of the positioning plate. The sliding mechanism is also equipped with a first driver, which meshes with the outer teeth of the rack.

[0014] This invention discloses a vacuum sealing and packaging machine, which has the following advantages: The improved device improves vacuum efficiency by cooperating with a dual-station vacuum chamber and a positioning plate. The bottom plate on the surface of the movable plate levels the packaged food, and the shaping groove on the surface of the plate shapes the food. The sliding ring, driven by the synchronous rod and synchronous belt, assists in leveling, facilitating the processing of the packaging. The synchronous rod drives the chuck to rotate, and the resistance generated by the first and second gears causes the clamping teeth to rotate, enabling tight transmission and clamping the packaging. This reduces packaging deformation during vacuuming, making it more flat. Attached Figure Description

[0015] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a vacuum sealing packaging machine according to the present invention.

[0017] Figure 2 This is a top view of the structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the vacuum section of the present invention.

[0019] Figure 4 This is a schematic diagram of the positioning plate of the present invention.

[0020] Figure 5 This is a schematic diagram of the structure of the base plate of the present invention.

[0021] Figure 6 This is a schematic diagram of the chuck of the present invention.

[0022] In the picture:

[0023] 1. Belt conveyor; 2. Vacuum section; 3. Feed turntable; 4. Feeder; 5. Feed hopper; 6. Machine body;

[0024] 111. Base plate; 112. Movable plate; 113. Sealer; 114. Clip head; 115. Drive rod; 116. Finishing plate;

[0025] 161. Chuck; 162. Plate; 163. Sliding ring; 164. Pressure plate; 165. Shaping groove; 166. Drive unit;

[0026] 21. Vacuum machine; 22. Sliding mechanism; 23. Distributor;

[0027] 211. Positioning plate; 212. Vacuum chamber; 213. Vacuum tube;

[0028] 221. Slide rail; 222. Support crossbar; 223. First actuator; 224. Rack;

[0029] 611. Clamping teeth; 612. Pressure bar; 613. Side arm; 614. Limiting side plate; 615. First gear; 616. Second gear; 617. Top pressure head;

[0030] 661. Slide groove; 662. Synchronizing rod; 663. Synchronizing belt; 664. Second driver; 665. Column. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In existing packaging processes, particularly in scenarios where a vacuum pump continuously extracts gas from a bag to roll nuts (such as walnuts and almonds) or granular snacks, there are significant limitations. When the air is removed, the loose food particles shift irregularly due to the bag's contraction, making it difficult to maintain a regular final packaging shape. Therefore, to address these issues, this paper proposes the following technical solution:

[0034] Please see Figures 1 to 6 This invention provides a vacuum sealing packaging machine technical solution: its structure includes: a machine body 6, a rotating feeding turntable 3 installed in the middle of the machine body 6, the feeding turntable 3 is arranged clockwise with a material belt conveyor 1, a feeding hopper 5, a feeding device 4 and a vacuum section 2, the material belt conveyor 1 is installed on the side of the machine body 6, the feeding hopper 5 cooperates with the movable rod of the feeding device 4, the feeding device 4 presses the center groove of the feeding hopper 5, the feeding turntable 3 rotatably connects the feeding hopper 5 and the vacuum section 2, the vacuum section 2 includes a vacuum machine 21 and a sliding mechanism 22, the vacuum machine 21 and the sliding mechanism 22 are movably connected, the distributor 23 of the vacuum section 2 is installed in the frame of the machine body 6, opposite to the gripper of the feeding turntable 3, the vacuum machine 21 includes a positioning plate 211 and a vacuum chamber 212, the positioning plate 211 and the vacuum chamber 212 are movably connected;

[0035] The positioning plate 211 includes a base plate 111 and a movable plate 112. The movable plate 112 is driven to move horizontally by a push rod inside the base plate 111. A sealing device 113 is installed on the surface of the movable plate 112. The sealing devices 113 are respectively set on the surface of the movable plate 112 and the inner surface of the vacuum chamber 212. The surface of the movable plate 112 is symmetrically arranged with clamping heads 114. Each clamping head 114 is matched with a drive rod 115. A sorting base plate 116 is arranged between the clamping heads 114.

[0036] When in use, the main structure of this device includes a material conveyor 1, which is used to place packaging bags, and a feeding turntable 3, which is used to transport packaging bags. The feeding turntable 3 clamps and opens the empty bag and passes it through the feeding hopper 5 for manual feeding or automatic feeding via an external production line. After feeding, the feeding device 4 at the top assists in ensuring that the food is completely filled into the bag.

[0037] After filling, the packaging bags are conveyed to the vacuum section 2 by the rotation of the feeding turntable 3 for vacuum packaging. The vacuum section 2 includes a vacuum machine 21, a sliding mechanism 22, and a distributor 23. The distributor 23 receives the packaging materials conveyed by the feeding turntable 3. After receiving, the vacuum machine 21 moves to the distributor 23 to transfer the packaging, and then moves to the side to work. The work efficiency is improved by alternating the operation of the two vacuum machines 21 on the left and right.

[0038] The vacuum machine 21 is composed of a positioning plate 211, a vacuum chamber 212, and a vacuum tube 213. The positioning plate 211 is used to clamp the bag. The positioning plate 211 is transported to the vacuum chamber 212 by the first driver 223 and the rack 224 of the bottom sliding mechanism 22. The vacuum tube 213 is connected to the pump body inside the machine body 6, so that the inner cavity of the vacuum chamber 212 generates negative pressure and extracts the air from the packaging.

[0039] The aforementioned vacuum machine 21 moves left and right by fixing the positioning plate 211 to the slide rail 221 on the surface of the support crossbar 222. A rack 224 is set at the bottom of the positioning plate 211. The rack 224 is fixed to the bottom of the slide rail 221 by bolts. The rack 224 is driven to move by the first driver 223 installed inside the machine body 6. The outer teeth of the first driver 223 push the outer teeth of the rack 224 to move horizontally left and right. The transmission through the gear rack can be more stable.

[0040] The positioning plate 211 includes a base plate 111, which is connected to a rack 224 as a base plate to support the movable plate 112. A sliding movable plate 112 is mounted on the surface of the base plate 111. The movable plate 112 engages with the base plate 111 via a sliding rod. A sealing device 113 is mounted on the inner surface of the movable plate 112 for heat sealing. The sealing device 113 consists of two parts, installed inside the vacuum chamber 212 and on the surface of the movable plate 112, respectively. After vacuuming, a push rod at the rear end of the base plate 111 drives the movable plate 112 to move horizontally, thereby causing the sealing device 113 to engage and heat-press.

[0041] A clamping head 114 is also provided on the surface of the movable plate 112 to cooperate with the sealing device 113. The clamping head 114 is connected to the drive rod 115. The rack of the drive rod 115 drives the clamping head 114 to rotate. When the clamping head 114 rotates and fits against the clamping block on the surface of the movable plate 112, it will clamp the package. When the drive rod 115 retracts, it can release the clamping head 114. The rotation clamping type can make the package fall off under the action of gravity after sealing, thus improving the packaging efficiency.

[0042] For some nut-type rolling packages, vertical packaging can cause them to pile up at the bottom, resulting in bulges during sealing and affecting the subsequent sealing of the outer packaging. While horizontal placement can solve this problem, it requires an additional feeding mechanism to unload the sealed packages. Furthermore, horizontal placement of packaging bags is not effective when handling packages containing liquids. Therefore, this application further optimizes the vertical packaging method as follows:

[0043] The surface of the specific movable plate 112 is provided with a sorting base plate 116 for positioning. The sorting base plate 116 is provided with a shaping groove 165 for positioning. Since the bag opening will shrink during vacuuming, it is inconvenient for the sliding ring 163 on the surface of the plate 162 to move and level. Therefore, the device is provided with a clamp 161 at the bottom of the plate 162 for clamping.

[0044] The chuck 161 cooperates with the synchronous rod 662 of the drive device 166 mounted on the rear surface of the plate 162. The synchronous rods 662 are linked by a synchronous belt 663 and driven by a second driver 664. The surface of the synchronous belt 663 is also connected to the sliding ring 163. When the synchronous belt 663 moves, it drives the sliding ring 163 to move up and down. The sliding ring 163 is also nested with the sliding groove 661 of the column 665, which makes the movement smoother. When moving, the pressure plate 164 on the surface of the sliding ring 163 flattens the package held between the chuck 161 and the clamping head 114. When the pressure plate 164 sweeps, the protruding rolling food enters the interior of the plate 162 and is nested. At this time, a vacuum is drawn simultaneously to prevent secondary displacement of the food.

[0045] To make the structure more compact, the chuck 161 is further optimized. Side arms 613 are provided on both sides of the gripping teeth 611 of the chuck 161. The side arms 613 are connected to the synchronizing rod 662 through the limiting side plate 614 on the surface of the side arm 613. The first gear 615 and the second gear 616 are connected. The limiting side plate 614 limits the first gear 615 and the second gear 616. The limiting side plate 614 and the side arm 613 are in movable cooperation. When rotating, the second gear 616 is driven to generate resistance, which in turn drives the gripping teeth 611 to clamp upward. When the synchronizing rod 662 rotates in the opposite direction, the gripping teeth 611 move downward. In order to improve the clamping force, a pressure strip 612 is nested on the surface of the gripping teeth 611. The pressure strip 612 is made of rubber and adheres to the packaging surface to prevent it from falling off.

[0046] A pressing head 617 is also provided in the middle of the second gear 616. The pressing head 617 is equipped with a spring. When the spring is pressed, the resistance to the rotation of the second gear 616 is increased, which can also increase the clamping torque.

[0047] The improved device improves vacuum efficiency by cooperating with the dual-station vacuum chamber 212 and positioning plate 211. The packaged food is leveled by the surface finishing plate 116 on the movable plate 112, and shaped by the shaping groove 165 on the surface of the plate 162. The sliding ring 163 assists in leveling with the driving pressure plate 164 of the synchronous rod 662 and synchronous belt 663, which facilitates the processing of the packaging. The synchronous rod 662 drives the chuck 161 to rotate. The resistance generated by the first gear 615 and the second gear 616 causes the clamping teeth 611 to rotate, which enables tight transmission and clamps the packaging. This reduces packaging deformation during vacuuming and makes it more flat.

[0048] The above description only outlines the basic principles and preferred embodiments of the present invention. Those skilled in the art can make many changes and modifications based on the above description, and these changes and modifications should fall within the protection scope of the present invention.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vacuum sealing packaging machine, the structure of which includes: The machine body (6) has a rotating feeding turntable (3) installed in the middle. The feeding turntable (3) is provided with a material belt conveyor (1), a feeding hopper (5), a feeder (4) and a vacuum unit (2) in a clockwise rotation. The material belt conveyor (1) is installed on the side of the machine body (6). The feeding hopper (5) cooperates with the movable rod of the feeder (4). The feeder (4) presses against the center groove of the feeding hopper (5). The feeding turntable (3) rotatably connects the feeding hopper (5) and the vacuum unit (2). The machine body (6) is characterized in that: The vacuum section (2) includes a vacuum machine (21) and a sliding mechanism (22). The vacuum machine (21) and the sliding mechanism (22) are movably connected. The distributor (23) of the vacuum section (2) is installed in the frame of the machine body (6) and is opposite to the gripper of the feeding turntable (3). The vacuum machine (21) includes a positioning plate (211) and a vacuum chamber (212). The positioning plate (211) and the vacuum chamber (212) are movably connected. The positioning plate (211) includes a base plate (111) and a movable plate (112). A push rod inside the base plate (111) drives the movable plate (112) to move horizontally. A sealing device (113) is installed on the surface of the movable plate (112). The sealing devices (113) are respectively located on the surface of the movable plate (112) and the inner surface of the vacuum chamber (212). A clamping head (114) is symmetrically arranged on the surface of the movable plate (112), and each clamping head (114) is matched with a driving rod (…). 115), a sorting base plate (116) is provided between the clamping heads (114). The sorting base plate (116) includes a clamp (161) and a plate body (162). A shaping groove (165) is provided in the middle of the plate body (162), and a sliding ring (163) is provided on the surface that is nested and slidable with the shaping groove (165) on the back of the plate body (162). The clamp (161) is movably engaged with the plate body (162), and a driving device (166) is provided on the rear surface of the plate body (162).

2. The vacuum sealing and packaging machine as described in claim 1, characterized in that: The top of the vacuum chamber (212) is provided with a vacuum tube (213), which is connected to the pump body inside the machine body (6). The positioning plate (211) is connected to the slide rail (221) of the sliding mechanism (22). The positioning plate (211) and the vacuum chamber (212) are nested to form a vacuum cavity.

3. The vacuum sealing and packaging machine as described in claim 1, characterized in that: The driving device (166) includes a column (665), a groove (661) is provided in the middle of the column (665), the synchronous rod (662) of the column (665) is connected to the chuck (161) and drives the chuck (161) to rotate around the axis, the groove (661) is slidably engaged with the sliding ring (163), the driving device (166) is also provided with a synchronous rod (662) that is engaged with the sliding sleeves on both sides of the plate (162), the synchronous rod (662) is installed at the upper and lower ends of the chuck (161) and is connected and driven by a synchronous belt (663), the synchronous rod (662) is connected to a second driver (664), and the second driver (664) and the synchronous rod (662) are linked by a transmission belt.

4. A vacuum sealing and packaging machine as described in claim 3, characterized in that: The chuck (161) includes a movable frame composed of a clamping tooth (611) and a side arm (613). The clamping tooth (611) is provided with a pressure strip (612) on the contact surface with the plate (162). A first gear (615) and a second gear (616) are installed at the movable shaft of the side arm (613). The first gear (615) and the second gear (616) are limited by a limiting side plate (614).

5. A vacuum sealing and packaging machine as described in claim 4, characterized in that: The pressure strip (612) is a cylindrical rubber strip.

6. A vacuum sealing and packaging machine as described in claim 4, characterized in that: The limiting side plate (614) has a top pressure head (617) nested in the shaft of the second gear (616), and the top pressure head (617) has a groove inside the shaft of the second gear (616) for spring pressing.

7. A vacuum sealing packaging machine as described in claim 1, characterized in that: The surface of the slip ring (163) is provided with a pressure plate (164).

8. A vacuum sealing packaging machine as described in claim 2, characterized in that: The slide rail (221) is installed inside the vacuum section (2) via a support crossbar (222). The bottom of the positioning plate (211) is equipped with a rack (224) of the sliding mechanism (22). The sliding mechanism (22) is also equipped with a first driver (223), which meshes with the outer teeth of the rack (224).

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