Vacuum packaging machine for fish packaging

By designing an automated feeding port and vacuum packaging device, the problem of manually placing packaging bags in fish vacuum packaging was solved, realizing automated separation and vacuum packaging of packaging bags, and improving the level of automation and production line efficiency.

CN224211327UActive Publication Date: 2026-05-08QIANNONG TECHNOLOGY (SHENZHEN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QIANNONG TECHNOLOGY (SHENZHEN) CO LTD
Filing Date
2025-05-09
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing fish vacuum packaging equipment cannot be automated, requiring manual placement of packaging bags, resulting in a discontinuous process.

Method used

Design a vacuum packaging machine that includes a feed inlet, a transmission device, and a vacuum packaging device. The machine automatically separates and conveys packaging bags through components such as friction wheel sets and material distribution rods, and achieves automated vacuum packaging by combining hydraulic rods and air extractors.

Benefits of technology

It combines automated production of packaging bags with vacuum packaging, improving the level of automation, reducing labor costs, and optimizing the production line structure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224211327U_ABST
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Abstract

The utility model relates to a vacuum packaging machine for fish packaging, which comprises a device body, the device body comprises a feed inlet, a transmission device and a vacuum packaging device, the feed inlet comprises a feed inlet left part, a feed inlet middle part and a feed inlet right part, the feed inlet left part is placed in the half side of the bottom side of a packaging bag, and the feed inlet middle part is placed in the half side of the bottom side of the packaging bag. Fish needing vacuum packaging is placed in the middle of the feeding port, the right portion of the feeding port is placed on the upper half side of a packaging bag, and due to the fact that the friction coefficient of the friction wheel set is different from that of a bottom plate of the feeding port, the packaging bags are separated one by one, enter the transmission device in a group mode and then enter the vacuum packaging device. And the hydraulic rod moves downwards and drives the structural frame to compact the packaging bag, then the melting device on the structural frame is started to melt and bond the periphery of the packaging bag, and then vacuum treatment is conducted.
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Description

Technical Field

[0001] This utility model relates to a vacuum packaging, specifically a vacuum packaging machine for fish packaging. Background Technology

[0002] Vacuum packaging, also known as reduced-pressure packaging, involves removing all air from the packaging container and sealing it, maintaining a high degree of decompression inside the bag. The scarcity of air creates a low-oxygen environment, depriving microorganisms of the conditions necessary for survival, thus ensuring food freshness and preventing spoilage. Applications include vacuum packaging within plastic bags, aluminum foil packaging, glassware, and packaging made of plastics and composite materials. The packaging material can be selected based on the type of goods. Because fruits are fresh foods that are still respiring, severe oxygen deficiency can cause physiological damage; therefore, vacuum packaging is less commonly used for fruits.

[0003] Chinese patent discloses a vacuum packaging device for fish (authorization announcement number CN 222698771 U). This patented technology can solve the practical problem of fish requiring vacuum packaging due to their rapid spoilage. However, it does not consider actual use; the packaging bags still need to be placed manually, and the entire packaging process cannot be automated. Therefore, those skilled in the art provide a vacuum packaging machine for fish packaging to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum packaging machine for fish packaging, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a device body, which comprises an inlet, a transmission device, and a vacuum packaging device. The inlet includes an inlet bottom plate, an inlet side plate, a partition plate one, and a partition plate two, forming three parts as shown in the cross-sectional view: the left part of the inlet, the middle part of the inlet, and the right part of the inlet. Several support rods are provided at the bottom of the inlet bottom plate.

[0006] Preferably: The left side of the feed inlet is provided with several sets of friction wheel groups, each friction wheel group being interference-fitted with a friction wheel fixing shaft, the friction wheel fixing shaft being clearance-fitted with the feed inlet side plate and having a motor power inlet at its right end; the middle of the feed inlet is provided with a material distribution partition, the material distribution partition being interference-fitted with a material distribution rod, the material distribution rod being clearance-fitted with the feed inlet side plate and having a motor power inlet at its right end; the right side of the feed inlet is provided with a second set of friction wheel groups and a piecing wheel, the second friction wheel group being interference-fitted with a second friction wheel fixing shaft, the second friction wheel fixing shaft being clearance-fitted with the feed inlet side plate and having a motor power inlet at its right end; the piecing wheel being interference-fitted with a piecing shaft, the piecing shaft being clearance-fitted with the feed inlet side plate and having a motor power inlet at its right end; the left side of the feed inlet is used to insert the bottom half of the packaging bag; the middle of the feed inlet is used to insert fish requiring vacuum packaging; and the right side of the feed inlet is used to insert... On the upper half of the bagging section, power of a specific frequency is supplied to each motor power input. Friction wheel fixed shaft one and friction wheel fixed shaft two drive friction wheel set one and friction wheel set two to rotate, respectively. Because the friction coefficient of the friction wheel set is different from that of the bottom plate of the feed inlet, the packaging bags are separated one by one. The packaging bags entering the left side of the feed inlet are separated one by one by the adhesive pads on the conveyor belt near the transmission device and move towards the vacuum packaging device together. Then, the items to be packaged entering the middle of the feed inlet are divided into the required amount by the separating rod and separating partition under the movement of a specific frequency and enter the transmission device. The items to be packaged will fall on the packaging bags that are stuck to the adhesive pads. Finally, the packaging bags entering the right side of the feed inlet are covered one by one on the surface above the packaged items by the action of the separating wheel and separating shaft moving at a specific frequency (the specific frequency is to ensure that each adhesive pad has one and only one set of packaging bags and items to be packaged).

[0007] Preferably, the transmission device includes two support rods around the perimeter, a structural ring at the top of the support rods, washers on the left and right sides of the structural ring, the structural ring and washers being clearance-fitted with the drive shaft, shaft top covers at both ends of the drive shaft, a motor power inlet at the right end of the shaft top cover, a fixed connection between the middle section of the drive shaft and a drive gear, the drive gear meshing with the internal tooth grooves of the conveyor belt, and several adhesive pads on the upper surface of the conveyor belt. The drive shaft and drive gear of the transmission device are configured to stop movement when the object to be packaged enters below the vacuum packaging device.

[0008] Preferably, the vacuum packaging device includes an air compressor and a structural side plate. The structural side plate is fixedly connected to a structural ring, and the upper end of the structural side plate is fixedly connected to a structural top plate. Hydraulic rods are provided around the top plate, and the bottom ends of the hydraulic rods are fixedly connected to a structural frame. The structural frame is equipped with a melting device, and an extractor hydraulic rod is provided in the middle of the top plate. An air extractor is provided at the bottom end of the extractor hydraulic rod. The air extractor is connected to the air compressor through a pipe. The hydraulic rod moves downward and drives the structural frame to compact the packaging bag. Then, the melting device on the structural frame is activated to melt and bond the packaging bag around its perimeter. Subsequently, the extractor hydraulic rod is activated and moves closer to the packaging strap. A small portion of the air is melted by the small melting device inside the air extractor, ensuring that the air inside the packaging strap is sufficient to be extracted by the air extractor without air leakage. The air extractor is activated to extract the air inside the packaging bag. After the packaging bag is evacuated to a vacuum, the small melting device inside the air extractor is activated to remelt the small holes, thus completing the vacuum packaging. Then, the drive shaft and drive gear are restarted, and the packaged item is removed from the transmission device, thus completing the vacuum packaging.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. This new type of packaging eliminates the manual placement of packaging bags and instead combines packaging bag production and vacuum packaging, thus optimizing the structure of the entire production line.

[0011] 2. Most of this new type of equipment can be controlled by a computer, which greatly improves the automation level of the new equipment and reduces unnecessary manual labor. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a vacuum packaging machine used for packaging fish.

[0013] Figure 2 For a vacuum packaging machine used for fish packaging Figure 1 A magnified structural diagram at point A.

[0014] Figure 3 This is a top view schematic diagram of the overall structure of a vacuum packaging machine used for fish packaging.

[0015] Figure 4 This is a cross-sectional schematic diagram of the overall structure of a vacuum packaging machine used for fish packaging.

[0016] Figure 5 This is a schematic diagram of the feed inlet in a vacuum packaging machine used for fish packaging.

[0017] Figure 6 This is a schematic diagram of the transmission device in a vacuum packaging machine used for fish packaging.

[0018] Figure 7 This is a schematic diagram of the vacuum packaging device in a vacuum packaging machine used for fish packaging.

[0019] In the diagram: 1. Device body; 2. Feed inlet; 211. Support rod one; 213. Feed inlet bottom plate; 214. Friction wheel fixing shaft one; 215. Friction wheel assembly one; 212. Partition one; 217. Material distribution partition; 220. Material distribution rod; 216. Partition two; 222. Friction wheel assembly two; 218. Friction wheel fixing shaft two; 219. Pager; 221. Pager shaft; 223. Feed inlet side plate; 224. Left side of feed inlet; 225. Middle part of feed inlet; 226. Right side of feed inlet 3. Transmission device; 311. Support rod II; 312. Structural ring; 313. Washer; 314. Shaft top cover; 315. Drive shaft; 318. Adhesive gasket; 317. Conveyor belt; 316. Drive gear; 4. Vacuum packaging device; 411. Structural side plate; 412. Air compressor; 413. Hydraulic rod; 415. Extractor hydraulic rod; 414. Structural top plate; 416. Melting device; 417. Air extractor; 418. Structural frame; 5. Motor power input. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-7In this embodiment of the present invention, a vacuum packaging machine for fish packaging includes a device body 1. The device body 1 includes an inlet 2, a transmission device 3, and a vacuum packaging device 4. The inlet 2 includes an inlet bottom plate 213, an inlet side plate 223, a partition 1 212, and a partition 216, forming three parts as shown in the cross-sectional view: the left part 224 of the inlet, the middle part 225 of the inlet, and the right part 226 of the inlet. The bottom of the inlet bottom plate 213 is provided with several support rods 211. The left part 224 of the inlet is provided with several sets of friction wheel sets 215. The friction wheel sets 215 are interference-fitted with the friction wheel fixing shaft 214. The friction wheel fixing shaft 214 is clearance-fitted with the inlet side plate 223 and is located on its right side. The feed inlet is provided with a motor power inlet 5. The middle part 225 of the feed inlet is provided with a material distribution partition 217. The material distribution partition 217 is interference-fitted with the material distribution rod 220. The material distribution rod 220 is clearance-fitted with the feed inlet side plate 223 and is provided with a motor power inlet 5 at its right end. The right part 226 of the feed inlet is provided with a friction wheel assembly 222 and a page-separating wheel 219. The friction wheel assembly 222 is interference-fitted with the friction wheel fixing shaft 218. The friction wheel fixing shaft 218 is clearance-fitted with the feed inlet side plate 223 and is provided with a motor power inlet 5 at its right end. The page-separating wheel 219 is interference-fitted with the page-separating shaft 221. The page-separating shaft 221 is clearance-fitted with the feed inlet side plate 223 and is provided with a motor power inlet 5 at its right end.

[0022] The transmission device 3 includes a second support rod 311 around the perimeter. The top of the second support rod 311 is provided with a structural ring 312. Washers 313 are provided on the left and right sides of the structural ring 312. The structural ring 312 and the washers 313 are clearance-fitted with the drive shaft 315. The drive shaft 315 is provided with shaft top covers 314 at both ends. The shaft top cover 314 at the right end of the drive shaft 315 is provided with a motor power inlet 5. The middle section of the drive shaft 315 is fixedly connected to the drive gear 316. The drive gear 316 meshes with the internal tooth groove of the conveyor belt 317. Several adhesive pads 318 are provided on the upper surface of the conveyor belt 317.

[0023] The vacuum packaging device 4 includes an air compressor 412 and a structural side plate 411. The structural side plate 411 is fixedly connected to the structural ring 312. The upper end of the structural side plate 411 is fixedly connected to the structural top plate 414. The structural top plate 414 is provided with hydraulic rods 413 around its perimeter. The bottom end of the hydraulic rods 413 is fixedly connected to the structural frame 418. The structural frame 418 is provided with a melting device 416. An extractor hydraulic rod 415 is provided in the middle of the structural top plate 414. An air extractor 417 is provided at the bottom end of the extractor hydraulic rod 415. The air extractor 417 is connected to the air compressor 412 through a pipe.

[0024] The working principle of this utility model is as follows: the bottom half of the packaging bag is placed in the left part 224 of the inlet, the fish that needs to be vacuum-packed is placed in the middle part 225 of the inlet, and the upper half of the packaging bag is placed in the right part 226 of the inlet. By connecting specific frequency power to each motor power input port 5, the friction wheel fixing shaft one 214 and the friction wheel fixing shaft two 218 respectively drive the friction wheel group one 215 and the friction wheel group two 222 to rotate. Because the friction coefficient of the friction wheel group is different from that of the friction coefficient of the bottom plate 213 of the inlet, the packaging bags are separated one by one. The packaging bag that first enters the left part 224 of the inlet will be adhered to the conveyor belt 317 near the transmission device 3. The adhesive pads 318 are separated one by one and move towards the vacuum packaging device 4 together. Then, the packaged items entering the middle part 225 of the feed inlet are divided into the required amount by the separating rod 220 and the separating partition 217 moving at a specific frequency and enter the transmission device 3. The packaged items will fall onto the packaging bags that are stuck to the adhesive pads 318. Finally, the packaging bags entering the right part 226 of the feed inlet will be covered one by one on the surface above the packaged items by the page separating wheel 219 and the page separating shaft 221 moving at a specific frequency (the specific frequency is to ensure that each adhesive pad 318 has one and only one set of packaging bags and packaged items). This completes the feeding stage.

[0025] The drive shaft 315 and drive gear 316 of the transmission device 3 are configured to pause movement when the packaged item enters below the vacuum packaging device 4. At this time, the hydraulic rod 413 moves downward and drives the structural frame 418 to compact the packaging bag. Then, the melting device 416 on the structural frame 418 is activated to melt and bond the packaging bag around its perimeter. Subsequently, the extractor hydraulic rod 415 is activated and moves closer to the packaging strap. A small portion of the air inside the air extractor 417 is melted by the small melting device inside the air extractor 417, ensuring that the air inside the packaging strap is sufficient to be extracted by the air extractor 417 without any air leakage. The air extractor 417 is activated to extract the air inside the packaging bag. After the packaging bag is evacuated to a vacuum, the small melting device inside the air extractor 417 is activated to remelt the small holes, thus completing the vacuum packaging. Then, the drive shaft 315 and drive gear 316 are restarted, and the packaged item is removed from the transmission device 3, thus completing the vacuum packaging.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vacuum packaging machine for fish packaging, comprising a device body (1), characterized in that, The main body (1) of the device includes a feed inlet (2), a transmission device (3) and a vacuum packaging device (4). The feed inlet (2) includes a feed inlet bottom plate (213), a feed inlet side plate (223), a partition plate one (212) and a partition plate two (216), which form three parts as shown in the cross-sectional view: the left part (224) of the feed inlet, the middle part (225) of the feed inlet and the right part (226) of the feed inlet. The bottom of the feed inlet bottom plate (213) is provided with several support rods one (211). The left side (224) of the feed inlet is provided with several sets of friction wheel groups (215). The friction wheel group (215) is interference-fitted with the friction wheel fixing shaft (214). The friction wheel fixing shaft (214) is clearance-fitted with the feed inlet side plate (223) and has a motor power inlet (5) at its right end. The left side (224) of the feed inlet is separated from the middle part (225) of the feed inlet by a partition plate (212). The feed inlet is provided with a material distribution partition (217) in the middle (225). The material distribution partition (217) is interference-fitted with the material distribution rod (220). The material distribution rod (220) is clearance-fitted with the feed inlet side plate (223) and is provided with a motor power inlet (5) at its right end. The feed inlet is separated from the right part (226) of the feed inlet by the partition second (216). The right side (226) of the feed inlet is provided with a second friction wheel assembly (222) and a page-separating wheel (219). The second friction wheel assembly (222) is interference-fitted with the second friction wheel fixed shaft (218). The second friction wheel fixed shaft (218) is clearance-fitted with the feed inlet side plate (223) and has a motor power inlet (5) at its right end. The page-separating wheel (219) is interference-fitted with the page-separating shaft (221). The page-separating shaft (221) is clearance-fitted with the feed inlet side plate (223) and has a motor power inlet (5) at its right end. The lower right side of the feed inlet (2) is a transmission device (3).

2. The vacuum packaging machine for fish packaging according to claim 1, characterized in that, The transmission device (3) includes a second support rod (311) around the perimeter. The top of the second support rod (311) is provided with a structural ring (312). Washers (313) are provided on the left and right sides of the structural ring (312). The structural ring (312) and the washers (313) are in clearance fit with the drive shaft (315). The two ends of the drive shaft (315) are provided with shaft top covers (314). The right end shaft top cover (314) of the drive shaft (315) is provided with a motor power inlet (5).

3. A vacuum packaging machine for fish packaging according to claim 2, characterized in that, The middle section of the drive shaft (315) is fixedly connected to the drive gear (316), the drive gear (316) meshes with the internal tooth groove of the conveyor belt (317), the upper surface of the conveyor belt (317) is provided with a number of adhesive pads (318), and a vacuum packaging device (4) is provided directly above the transmission device (3).

4. A vacuum packaging machine for fish packaging according to claim 3, characterized in that, The vacuum packaging device (4) includes an air compressor (412) and a structural side plate (411). The structural side plate (411) is fixedly connected to the structural ring (312). The upper end of the structural side plate (411) is fixedly connected to the structural top plate (414). The structural top plate (414) is provided with hydraulic rods (413) around its perimeter. The bottom end of the hydraulic rods (413) is fixedly connected to the structural frame (418).

5. A vacuum packaging machine for fish packaging according to claim 4, characterized in that, The structural frame (418) is equipped with a melting device (416), and the top plate (414) of the structure is equipped with an extractor hydraulic rod (415) in the middle position. The bottom end of the extractor hydraulic rod (415) is equipped with an air extractor (417), and the air extractor (417) is connected to an air compressor (412) through a pipe.

Citation Information

Patent Citations

  • Fish vacuum packaging device

    CN222698771U