A multi-station automatic packaging machine for food processing

Abstract

This utility model discloses a multi-station automatic packaging machine for food processing, relating to the field of food processing technology. It aims to solve the technical problem of packaging bags easily falling off during powder stamping in current packaging machines. The machine includes a base and several connected station supports, one of which is equipped with a feeding rack. A positioning post is located on the side of the side positioning plate away from the central axis plate, and a material ring for feeding is provided on the cover plate. An extension rod, on the side away from the support plate, passes through the central axis plate and corresponds to the bottom of the material plate. This utility model, by setting up a feeding and lifting structure, controls the rotation of the adjusting shaft plate to drive the support plate to move up and down along the positioning post. This allows for tilted feeding by adjusting the angle of the material plate after feeding through the material ring. The support plate lifts the bottom of the packaging bag, while the top is fed through the material plate, eliminating the need for an additional drive structure and simplifying the equipment layout.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, and more specifically, to a multi-station automatic packaging machine for food processing. Background Technology

[0002] In the field of automated packaging for food powders, multi-station packaging mechanisms are widely used in the packaging of materials such as flour and milk powder due to their ability to improve production efficiency. Existing mechanisms often use pneumatic feeding from a hopper to achieve quantitative material supply, while suction cups are used to adhere to the opening of the packaging bag to complete the positioning and fixation of the bag. This works in conjunction with the pneumatic feeding process to achieve automated packaging and meet the packaging speed requirements of large-scale production. However, existing multi-station packaging mechanisms have significant drawbacks in practical applications: when high-pressure airflow propels food powder into the packaging bag, it generates a continuous downward pulling force on the suction area between the suction cup and the packaging bag; furthermore, the mechanism lacks a corresponding support structure at the bottom of the packaging bag to counteract this pulling force. In this situation, the high pressure can easily cause the packaging bag and suction cup to separate under pressure, leading to the bag falling off. This not only wastes materials but also interrupts the packaging process and reduces production efficiency. Therefore, we propose a multi-station automatic packaging machine for food processing. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a multi-station automatic packaging machine for food processing to solve the technical problem that packaging bags are prone to falling off during powder stamping in current packaging machines.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a multi-station automatic packaging machine for food processing, including a base and several station supports connected thereto, one of which is provided with a feeding rack, the feeding rack is provided with a feeding lifting structure, the feeding lifting structure includes a central shaft plate, symmetrical side positioning plates are provided on both sides of the central shaft plate, a positioning post is provided on the side of the side positioning plate away from the central shaft plate, a vertically movable support plate is provided on the two positioning posts, an extension rod is provided on the support plate, an adjusting shaft plate is provided at the middle of the central shaft plate at a position relatively horizontal to the side positioning plates, the side of the adjusting shaft plate away from the central shaft plate corresponds to the bottom of the support plate, a torsion spring adjusting tube is provided at the top of the central shaft plate, the moving end of the torsion spring adjusting tube is connected to a material plate, a V-shaped material groove is provided in the material plate, a cover plate is provided on the material plate, and a material ring for feeding is provided on the cover plate, the side of the extension rod away from the support plate passes through the central shaft plate and corresponds to the bottom of the material plate.

[0005] Preferably, the base has a self-driven assembly in the middle that can adsorb packaging bags, the top of the unloading rack has a lifting rod, and the moving end of the lifting rod is connected to a lifting adjustment plate for installing the material box. The lifting adjustment plate has a trigger rod, and the side of the trigger rod away from the lifting adjustment plate has a pressing wheel. The side of the adjustment shaft plate near the central shaft plate corresponds to the pressing wheel.

[0006] Preferably, the lifting adjustment plate is raised and lowered based on the lifting rod, and a crossbar for connecting the material box is provided on the side of the lifting adjustment plate away from the lifting rod. An arc-shaped groove is provided in the middle of the lifting adjustment plate, and the bottom of the lifting adjustment plate is connected to the trigger rod. The trigger rod is rotatably connected to the extrusion wheel.

[0007] Preferably, the side positioning plates are located on both sides of the central axis plate and are symmetrically arranged based on the protruding structure in the middle of the central axis plate. The side positioning plates have a curved shape, the positioning posts are fixed to the side positioning plates, and the bottom of the positioning posts is provided with a limiting circular plate.

[0008] Preferably, a bearing is provided between the protruding structure of the adjusting shaft plate and the central shaft plate. The adjusting shaft plate is connected to the central shaft plate based on the bearing. The connection between the adjusting shaft plate and the bearing is horizontally arranged, and the side away from the bearing is arranged in an L-shape. Under normal pressure, the L-shaped structure of the adjusting shaft plate moves downward based on the bearing under gravity until the side of the adjusting shaft plate close to the bearing contacts the extrusion wheel.

[0009] Preferably, the pallet has horizontal lifting lugs on both sides, and the lifting lugs have annular holes for the positioning pin to pass through. The middle part of the pallet is convex with the corresponding position of the extension rod, and the extension rod moves up and down based on the pallet.

[0010] Preferably, the torsion spring adjusting tube includes a torsion spring and a tube structure connected to the moving end of the torsion spring. The tube structure is connected to the material plate. The torsion spring is a detachable structure. The material plate is divided into two parts based on the torsion spring adjusting tube. One part is close to the central plate and corresponds to the extension rod, and the other part is connected to the material trough. The trough has a discharge port at its opening. When the material plate is lifted by the extension rod, the material ring driven by the torsion spring adjusting tube is horizontally aligned with the material opening of the material box, and the discharge port is aligned with the opening of the packaging bag.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention features a material feeding and lifting structure. By controlling the rotation of the adjusting shaft plate, the support plate moves up and down along the positioning column. The extension rod connected to the support plate then drives the material plate to rotate. The torsion spring adjusting tube connected to the material plate allows the material groove inside the material plate to be in an adjustable angle state. This enables tilted feeding by adjusting the angle of the material plate after feeding from the material ring. The support plate lifts the bottom of the packaging bag, while the top is fed through the material plate. This effectively reduces the problem of packaging bags easily falling off during traditional stamping feeding, eliminating the need for an additional drive structure, simplifying the equipment layout, and solving the technical problem of packaging bags easily falling off during powder stamping in current packaging machines.

[0012] This invention also features a detachable torsion spring in the torsion spring adjustment tube, facilitating future maintenance and replacement, reducing equipment maintenance costs and downtime. The material plate is divided into two parts via the torsion spring adjustment tube, precisely linked with the extension rod. The top ensures smoother transitions between the material plate's flipping and lifting actions, reducing mechanical jamming and improving process continuity. The inclined design of the V-shaped material trough prevents powder residue and enables both hopper-based feeding and outlet-based discharging operations, eliminating the need for direct contact between the hopper and the packaging bag, thus avoiding high-pressure direct impact. The material ring on the cover plate aligns horizontally with the hopper's opening, guiding material precisely into the trough during feeding. Simultaneously, the outlet precisely aligns with the packaging bag opening, and the trough's airtight design effectively reduces dust generation during high-pressure powder flushing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the material unloading rack connection structure of this utility model; Figure 3 This is a schematic diagram of the material feeding and lifting structure of this utility model; Figure 4 This is a schematic diagram of the material plate structure of this utility model; Figure 5 This is a schematic diagram of the trigger rod structure of this utility model.

[0014] The following are the labeling instructions in the diagram: 100, base; 110, workstation support; 120, self-drive assembly; 130, unloading rack; 140, lifting rod; 150, trigger rod; 151, extrusion wheel; 160, lifting adjustment plate; 170, material box; 200, unloading support structure; 210, central shaft plate; 220, side positioning plate; 230, adjusting shaft plate; 240, positioning column; 250, support plate; 251, lifting lug; 252, extension rod; 260, torsion spring adjusting tube; 270, material plate; 271, discharge port; 272, material trough; 280, cover plate; 290, material ring. Detailed Implementation

[0015] like Figures 1 to 5 As shown, this utility model relates to a multi-station automatic packaging machine for food processing, including a base 100 and several station supports 110 connected thereto. One of the station supports 110 is equipped with a feeding rack 130, and the feeding rack 130 is equipped with a feeding lifting structure 200. The feeding lifting structure 200 includes a central shaft plate 210, with symmetrical side positioning plates 220 on both sides of the central shaft plate 210. A positioning post 240 is provided on the side of the side positioning plate 220 away from the central shaft plate 210. A vertically movable support plate 250 is provided on the two positioning posts 240, and an extension rod 252 is provided on the support plate 250. An adjusting shaft plate 230 is provided at the middle of the central shaft plate 210 and at a position relatively horizontal to the side positioning plate 220. The side of the adjusting shaft plate 230 away from the central shaft plate 210 corresponds to the bottom of the support plate 250. A torsion spring adjusting tube 260 is provided at the top of the central shaft plate 210. The moving end of the torsion spring adjusting tube 260 is connected to a material plate 270. A V-shaped material groove 272 is provided inside the material plate 270. A cover plate 280 is provided on the material plate 270, and a material ring 290 for feeding is provided on the cover plate 280. The side of the extension rod 252 away from the support plate 250 passes through the central shaft plate 210 and corresponds to the bottom of the material plate 270.

[0016] This invention features a material feeding and lifting structure 200. By controlling the rotation of the adjusting shaft plate 230, the support plate 250 moves up and down along the positioning column 240. The extension rod 252 connected to the support plate 250 then drives the material plate 270 to rotate. The torsion spring adjusting tube 260 connected to the material plate 270 allows the material groove 272 inside the material plate 270 to be in an adjustable angle. This enables tilting material feeding by adjusting the angle of the material plate 270 after feeding from the material ring 290. The support plate 250 lifts the bottom of the packaging bag, while the top is fed through the material plate 270. This effectively reduces the problem of packaging bags easily falling off during traditional stamping material feeding, eliminating the need for an additional drive structure, simplifying the equipment layout, and solving the technical problem of packaging bags falling off during powder stamping in current packaging machines.

[0017] Specifically, the base 100 has a self-driven assembly 120 in the middle that can adsorb packaging bags, the top of the unloading rack 130 has a lifting rod 140, and the moving end of the lifting rod 140 is connected to a lifting adjustment plate 160 for installing the material box 170. The lifting adjustment plate 160 has a trigger rod 150, and a squeezing roller 151 is provided on the side of the trigger rod 150 away from the lifting adjustment plate 160. The side of the adjusting shaft plate 230 near the central shaft plate 210 corresponds to the squeezing roller 151. The adsorption structure in the self-driven assembly 120 adsorbs the packaging bags. The bag-supporting and fixing suction operation is an existing technology. Its purpose is to make the fixed position of the packaging bag correspond to the position required in this application, so as to realize the material feeding operation. Based on the lifting rod 140, the material box 170 is moved and the trigger rod 150 is raised and lowered to realize the purpose of feeding and lifting the packaging bag. The extrusion wheel 151 corresponds to one side of the adjusting shaft plate 230. The extrusion wheel 151 adopts a wheel structure to reduce friction when pressing down, so as to realize the position adjustment operation of the entire feeding and lifting structure 200.

[0018] The workstation bracket 110 and self-drive assembly 120 involved in the above structure are for installing automated equipment. The automated equipment installed includes, but is not limited to, existing mechanical equipment that performs vacuuming, heat sealing, and cutting operations on food packaging bags. The self-drive assembly 120 is a rotating device with a drive structure. In this application, its main function is to adsorb packaging bags through a vacuum suction cup. The material box 170 is a box structure for storing powdered food based on air pressure-driven material discharge. Both are existing devices known to those skilled in the art, so they have not been described in detail.

[0019] More specifically, the lifting adjustment plate 160 is raised and lowered based on the lifting rod 140. The side of the lifting adjustment plate 160 away from the lifting rod 140 is provided with a crossbar for connecting the material box 170. The middle part of the lifting adjustment plate 160 is provided with an arc-shaped groove. The bottom of the lifting adjustment plate 160 is connected to the trigger rod 150. The trigger rod 150 is rotatably connected to the extrusion wheel 151. The lifting adjustment plate 160 can be precisely raised and lowered based on the lifting rod 140, and can flexibly adapt to different height requirements of the material box 170. The crossbar facilitates the stable installation of the material box 170. The arc-shaped groove can adapt to the structure of the material box 170. The trigger rod 150 is rotatably connected to the extrusion wheel 151, making the force of the extrusion wheel 151 on the adjustment shaft plate 230 smoother.

[0020] Furthermore, the side positioning plates 220 are located on both sides of the central axis plate 210 and are symmetrically arranged based on the protruding structure in the middle of the central axis plate 210. The side positioning plates 220 have a curved structure, and the positioning posts 240 are fixed to the side positioning plates 220. The bottom of the positioning posts 240 is provided with a limiting circular plate. The symmetrical arrangement of the side positioning plates 220 ensures balanced force distribution. The curved structure reduces friction with the support plate 250 and facilitates the application of force. The circular plate at the bottom of the positioning posts 240 can prevent the support plate 250 from falling down excessively and detaching, thus improving structural safety.

[0021] It is worth noting that a bearing is provided between the protruding structure of the adjusting shaft plate 230 and the central shaft plate 210. The adjusting shaft plate 230 is connected to the central shaft plate 210 based on this bearing. The connection between the adjusting shaft plate 230 and the bearing is horizontally arranged, and the side away from the bearing is arranged in an L-shape. Under normal pressure, the L-shaped structure of the adjusting shaft plate 230 moves downward based on the bearing under the force of gravity until the side of the adjusting shaft plate 230 close to the bearing contacts the extrusion roller 151. The bearing between the adjusting shaft plate 230 and the central shaft plate 210 ensures smooth rotation, the horizontal connection structure ensures accurate force transmission, and the L-shaped structure naturally resets under gravity, making the initial position of the support plate 250 stable.

[0022] It is worth mentioning that the support plate 250 is provided with horizontal lifting lugs 251 on both sides. The lifting lugs 251 are provided with annular holes for the positioning post 240 to pass through. The middle part of the support plate 250 is convex with the corresponding position of the extension rod 252. The extension rod 252 moves up and down based on the support plate 250. The lifting lugs 251 are connected to the support plate 250 and are positioned based on the positioning post 240, so that they can move up and down based on the adjusting shaft plate 230, which facilitates the up and down movement of the extension rod 252.

[0023] It is worth noting that the torsion spring adjusting tube 260 includes a torsion spring and a tube structure connected to the moving end of the torsion spring. This tube structure is connected to the material plate 270. The torsion spring in 260 is a detachable structure. The material plate 270 is divided into two parts based on the torsion spring adjusting tube 260. One part corresponds to the extension rod 252 on the side near the central shaft plate 210, and the other part is connected to the material trough 272. The opening of the material trough 272 is provided with a discharge port 271. When the material plate 270 is lifted by the extension rod 252, it drives the material ring 290 to be horizontally aligned with the material opening of the material box 170 based on the torsion spring adjusting tube 260. The material outlet 271 is configured to correspond to the opening of the packaging bag. The torsion spring adjusting tube 260 is configured to enable the rotation and reset operation of the material plate 270. One side of the material plate 270 can move up and down based on the extension rod 252, and the other side can be equipped with the material trough 272 to achieve horizontal and tilt adjustment. The V-shaped structure of the material trough 272 enables the horizontal and tilt adjustment of the two troughs. Thus, when the bottom trough is discharging material, the top trough can be discharging material through the material box 170 based on the material ring 290 and the cover plate 280, without the need for additional drive and work station, thus improving convenience.

[0024] This invention also features a detachable torsion spring in the torsion spring adjusting tube 260, facilitating future maintenance and replacement, reducing equipment maintenance costs and downtime. Simultaneously, the material plate 270 is divided into two parts via the torsion spring adjusting tube 260, precisely linked with the extension rod 252. The top of the material plate 270 allows for smoother transitions between flipping and lifting actions, reducing mechanical jamming and improving process continuity. The inclined design of the V-shaped material trough 272 prevents powder residue and enables feeding from the material box 170 and discharging from the outlet 271, eliminating the need for the material box 170 to directly contact the packaging bag and preventing high-pressure direct impact. The material ring 290 on the cover plate 280 is horizontally aligned with the material inlet of the material box 170, guiding the material precisely into the trough during feeding. Furthermore, the outlet 271 is precisely aligned with the opening of the packaging bag, and the airtightness of the material trough 272 effectively reduces dust generation during high-pressure powder flushing.

[0025] Working Principle: This embodiment provides a multi-station automatic packaging machine for food processing. In use, the packaging bag suction mechanism on the self-driven assembly 120 in the middle of the base 100 first fixes the packaging bag, causing it to rotate to the corresponding position on the top of the tray 250. Then, the lifting rod 140 on the unloading rack 130 drives the lifting adjustment plate 160 to descend. The trigger rod 150 connected to the lifting adjustment plate 160 simultaneously drives the extrusion roller 151 to move downwards. The extrusion roller 151 contacts and then extrudes the adjusting shaft plate 230, causing the adjusting shaft plate 230 to rotate based on the bearing. The adjusting shaft plate 230 away from the extrusion roller 151 moves upwards and contacts the bottom of the tray 250, causing the tray 250 to move horizontally upwards based on the positioning posts 240 on both sides. Simultaneously, the tray 250 drives the extension rod 252 to move upwards, pressing against the material plate 250. One side of the material plate 270 is lifted, and the other side of the material plate 270 rotates based on the torsion spring adjusting tube 260, so that the bottom of the material trough 272 is tilted. The powder is poured into the corresponding packaging bag through the discharge port 271. The top of the material trough 272, together with the cover plate 280 and the material ring 290, is horizontal, so that the material outlet of the material box 170 outputs powder into the material ring 290. At the same time, the support plate 250 contacts the bottom of the packaging bag. While the material box 170 is performing high-pressure powder flushing, the support plate 250 lifts the bottom of the packaging bag. After the powder flushing is completed, the material box 170 moves upward. At this time, the material plate 270 is no longer squeezed by the extension rod 252. Based on the torsion spring adjusting tube 260, the bottom of the material trough 272 is horizontal, and the powder in the top trough falls into the bottom trough in an inclined state, ready for the next flushing.

[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A multi-station automatic packaging machine for food processing, comprising a base (100) and several station supports (110) connected thereto, characterized in that, One of the workstation supports (110) is provided with a material unloading rack (130), and the material unloading rack (130) is provided with a material unloading lifting structure (200). The material unloading lifting structure (200) includes a central shaft plate (210), and symmetrical side positioning plates (220) are provided on both sides of the central shaft plate (210). A positioning post (240) is provided on the side of the side positioning plate (220) away from the central shaft plate (210). A vertically movable support plate (250) is provided on the two positioning posts (240), and an extension rod (252) is provided on the support plate (250). An adjusting shaft plate (230) is provided at a position in the middle of the central shaft plate (210) that is horizontally opposite to the side positioning plate (220). The side of the adjusting shaft plate (230) away from the central shaft plate (210) corresponds to the bottom of the support plate (250). The top of the central shaft plate (210) is provided with a torsion spring adjusting tube (260), and the moving end of the torsion spring adjusting tube (260) is connected to a material plate (270). The material plate (270) is provided with a V-shaped material groove (272), and a cover plate (280) is provided on the material plate (270). The cover plate (280) is provided with a material ring (290) for feeding. The side of the extension rod (252) away from the support plate (250) passes through the central shaft plate (210) and corresponds to the bottom of the material plate (270).

2. The multi-station automatic packaging machine for food processing according to claim 1, characterized in that, The base (100) is provided with a self-driven assembly (120) in the middle that can adsorb packaging bags. The top of the unloading rack (130) is provided with a lifting rod (140), and the moving end of the lifting rod (140) is connected to a lifting adjustment plate (160) for installing the material box (170). The lifting adjustment plate (160) is provided with a trigger rod (150). The side of the trigger rod (150) away from the lifting adjustment plate (160) is provided with a pressing wheel (151). The side of the adjustment shaft plate (230) near the central shaft plate (210) corresponds to the pressing wheel (151).

3. The multi-station automatic packaging machine for food processing according to claim 2, characterized in that, The lifting adjustment plate (160) is raised and lowered based on the lifting rod (140). The side of the lifting adjustment plate (160) away from the lifting rod (140) is provided with a crossbar for connecting the material box. The middle part of the lifting adjustment plate (160) is provided with an arc-shaped groove. The bottom of the lifting adjustment plate (160) is connected to the trigger rod (150). The trigger rod (150) is rotatably connected to the extrusion wheel (151).

4. The multi-station automatic packaging machine for food processing according to claim 3, characterized in that, The side positioning plates (220) are located on both sides of the central axis plate (210) and are symmetrically arranged based on the protruding structure in the middle of the central axis plate (210). The side positioning plates (220) have a curved structure. The positioning post (240) is fixed to the side positioning plates (220). The bottom of the positioning post (240) is provided with a circular plate for limiting.

5. The multi-station automatic packaging machine for food processing according to claim 4, characterized in that, A bearing is provided between the protruding structure of the adjusting shaft plate (230) and the central shaft plate (210). The adjusting shaft plate (230) is connected to the central shaft plate (210) based on the bearing. The connection between the adjusting shaft plate (230) and the bearing is horizontally arranged, and the side away from the bearing is arranged in an L-shape. Under normal pressure, the L-shaped structure of the adjusting shaft plate (230) moves downward based on the bearing under gravity until the side of the adjusting shaft plate (230) close to the bearing contacts the extrusion wheel (151).

6. The multi-station automatic packaging machine for food processing according to claim 5, characterized in that, The pallet (250) has horizontal lifting lugs (251) on both sides. The lifting lugs (251) have annular holes for the positioning post (240) to pass through. The middle part of the pallet (250) is convex with the corresponding position of the extension rod (252). The extension rod (252) moves up and down based on the pallet (250).

7. A multi-station automatic packaging machine for food processing according to claim 2, characterized in that, The torsion spring adjusting tube (260) includes a torsion spring and a tube structure connected to the moving end of the torsion spring. The tube structure is connected to the material plate (270). The torsion spring in the 260 is a detachable structure. The material plate (270) is divided into two parts based on the torsion spring adjusting tube (260). One part is close to the side of the central shaft plate (210) and corresponds to the extension rod (252). The other part is connected to the material trough (272). The groove of the material trough (272) is provided with a discharge port (271). When the material plate (270) is lifted by the extension rod (252), the material ring (290) driven by the torsion spring adjusting tube (260) is horizontally corresponding to the material outlet of the material box (170). The discharge port (271) is corresponding to the bag opening of the packaging bag.

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