Pre-cooked food freshness retaining packaging machine

Abstract

The utility model discloses a prefabricated dish fresh -keeping packaging machine relates to food processing technical field, and the utility model discloses a conveying frame, and the conveying frame includes the conveyer belt, and the outer surface detachable of conveyer belt is provided with the baffle, and the top of conveyer belt is provided with the casing, and the bottom surface of casing is inserted and is provided with the heat -seal plate, and the end surface fixedly connected with the supporting plate of casing, and the side wall of one supporting plate is provided with the notched, and the inside sliding connection of notched has the toothed plate, and the side wall of toothed plate is engaged with the gear, and the middle part fixedly connected with the cross shaft of the side wall of gear is inserted, and the shaft end fixedly connected with the cross pipe of cross shaft is, and the output fixedly connected with the nitrogen filling pipe of cross pipe, the utility model discloses, can carry out fresh -keeping packaging to prefabricated dish, avoid the residual oxygen in the packing bag and lead to the oxidation metamorphism of prefabricated dish, and can automatically make the nitrogen filling pipe and the bag mouth of packing bag separate after completing the packaging, avoid the influence packing bag's removal, thereby improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, specifically a pre-prepared vegetable freshness-locking packaging machine. Background Technology

[0002] Pre-cooked meals utilize modern standardized assembly line operations to process food ingredients in a hygienic and scientific manner, then package the processed food. When needed, these convenient meals can be eaten directly after a simple heating process.

[0003] A search revealed a pre-prepared vegetable freshness-locking packaging device with publication (announcement) number "CN221498651U". This device includes a frame and an infeed conveyor belt, an outfeed conveyor belt, a packaging conveyor belt, and a film-coating box mounted on the frame. The infeed and outfeed conveyor belts are located on the front and rear sides of the packaging conveyor belt, respectively. The packaging conveyor belt has multiple spaced-apart push rods. The frame has a guiding structure, which includes five guide plates spaced apart along the left-right direction, forming a guiding channel between any two adjacent guide plates. A slide rail is provided on the frame corresponding to each guiding channel. The frame also has a pushing mechanism, which includes a push plate that can move relative to the frame in the front-back direction and a push cylinder that drives the push plate. The push plate is used to push the pre-prepared vegetable packaging boxes on the infeed conveyor belt along the guiding channel into the corresponding slide rail.

[0004] Although the pre-prepared vegetable fresh-locking packaging equipment with publication (announcement) number "CN221498651U" can realize the automatic conveying, guiding and sealing of pre-prepared vegetable packaging boxes, improving packaging efficiency, it has some shortcomings. During packaging, it can only realize the function of packaging and cannot provide fresh-locking performance. As a result, oxygen may remain in the pre-prepared vegetable packaging bag during packaging, which may lead to oxidation and deterioration of the pre-prepared vegetables. In order to solve the above problems, the inventor proposed a pre-prepared vegetable fresh-locking packaging machine. Utility Model Content

[0005] To address the problem that oxygen remains inside the packaging bags of pre-prepared vegetables during the current packaging process, which can easily lead to oxidation and spoilage, the purpose of this invention is to provide a pre-prepared vegetable freshness-locking packaging machine.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: a pre-prepared vegetable freshness-locking packaging machine, including a conveyor frame, the conveyor frame including a conveyor belt, a baffle detachably provided on the outer surface of the conveyor belt, a rubber plate provided on one side of the baffle, a housing provided above the conveyor belt, a heat-sealing plate inserted and liftable on the bottom surface of the housing, the heat-sealing plate corresponding to the rubber plate, a support plate fixedly connected to the end face of the housing, a slot provided through the side wall of one of the support plates, a toothed plate slidably connected inside the slot, a gear meshing on the side wall of the toothed plate, a horizontal shaft inserted and fixedly connected to the middle of the side wall of the gear, a horizontal tube fixedly connected to the shaft end of the horizontal shaft, and a nitrogen filling pipe fixedly connected to the output end of the horizontal tube.

[0007] Preferably, the side wall of the conveyor belt is provided with through-holes, and the bottom surface of the baffle is fixedly connected with locking posts. The locking posts correspond to and engage with the locking holes. The baffle is used to limit and block the packaging bags containing pre-cooked food. When placing the packaging bags containing pre-cooked food, the bag opening should be open and located on the rubber plate. Through the cooperation of the locking posts and locking holes, the baffle can be fixed on the conveyor belt. When the position of the baffle needs to be adjusted to accommodate packaging bags of different sizes, the locking posts on the baffle can be engaged with the locking holes at the required positions to adjust the position of the baffle. The bottom surface of the rubber plate is fixedly connected to the outer surface of the conveyor belt, and the rubber... The plate is made of heat-resistant material to cooperate with the heat-sealing plate to heat-seal the bag opening. An electric cylinder is inserted into the top surface of the shell. The outer shell of the electric cylinder is fixedly connected to the side wall of the shell. The output shaft of the electric cylinder is fixedly connected to the outer shell of the heat-sealing plate. When the electric cylinder is activated, the heat-sealing plate can be moved up and down under the action of the output shaft. When the opening of the packaging bag containing the pre-cooked food moves to below the heat-sealing plate, nitrogen can be filled into the packaging bag containing the pre-cooked food through the nitrogen filling tube to lock in freshness. After the nitrogen filling is completed, the electric cylinder can be controlled to make the heat-sealing plate fall, so as to cooperate with the rubber plate to heat-seal the opening of the packaging bag, thereby sealing the nitrogen gas inside the packaging bag containing the pre-cooked food.

[0008] Preferably, a guide plate is fixedly connected to the inner bottom wall of the slot, and a slide rail is fixedly connected to the bottom surface of the toothed plate. The slide rail corresponds to and is slidably connected to the guide plate. Activating the electric push rod allows the toothed plate to move. Through the meshing of the toothed plate and the gear, the horizontal axis can rotate, which in turn allows the horizontal tube to rotate. When the toothed plate moves, the cooperation between the slide rail and the guide plate ensures smoother movement. When the toothed plate is at its minimum stroke, the nitrogen filling tube is in the nitrogen filling working position. When the toothed plate moves to its maximum stroke, the nitrogen filling tube will rotate around the horizontal axis to move away from the nitrogen filling working position, thus disengaging from the bag opening and becoming inclined. To avoid affecting the movement of the packaged bags after packaging, an electric push rod is provided on one side of the support plate. The output shaft end of the electric push rod is fixedly connected to the end face of the toothed plate. A fixed seat is provided on the side wall of the electric push rod. The side wall of the fixed seat is fixedly connected to the outer wall of the conveyor frame. The electric push rod is installed through the fixed seat. Activating the electric push rod allows the toothed plate to move. A convex plate is rotatably connected to the end of the horizontal shaft away from the horizontal tube. The side wall of the convex plate is fixedly connected to the outer wall of the conveyor frame. A nitrogen gas delivery connector is fixedly connected to the input end of the horizontal tube. The convex plate is used to support the rotation of the horizontal shaft. The nitrogen gas delivery connector is used to connect to the output end of an external nitrogen supply machine for nitrogen filling.

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

[0010] 1. This utility model enables freshness-locking packaging of pre-cooked dishes. A nitrogen-filling tube allows nitrogen to be injected into the packaging bag containing the pre-cooked dishes to lock in freshness, expelling air from the bag and preventing residual oxygen from causing oxidation and spoilage. After nitrogen filling and freshness locking, the bag opening can be heat-sealed and pressurized to seal the nitrogen gas inside. The nitrogen-filling tube can also be moved so that after packaging, it automatically detaches from the bag opening and tilts, preventing interference with bag movement and improving work efficiency.

[0011] 2. This utility model uses a baffle to limit and block the packaging bag containing pre-cooked food, so as to prevent the packaging bag from shifting when packaging the pre-cooked food. The baffle can also be adjusted to accommodate packaging bags of different sizes. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the baffle structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the nitrogen filling tube and heat sealing plate of this utility model.

[0016] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0017] In the diagram: 1. Conveyor frame; 2. Conveyor belt; 3. Clamping hole; 4. Baffle; 5. Clamping post; 6. Rubber plate; 7. Housing; 8. Support plate; 9. Electric cylinder; 10. Heat sealing plate; 11. Groove; 12. Guide plate; 13. Electric push rod; 14. Fixed base; 15. Toothed plate; 16. Slide rail; 17. Gear; 18. Horizontal shaft; 19. Horizontal tube; 20. Nitrogen gas delivery connector; 21. Nitrogen filling pipe; 22. Convex plate. Detailed Implementation

[0018] 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.

[0019] Example: Figure 1-4 As shown, this utility model provides a pre-prepared vegetable freshness-locking packaging machine, including a conveyor frame 1, a conveyor belt 2, a baffle 4 detachably provided on the outer surface of the conveyor belt 2, a rubber plate 6 provided on one side of the baffle 4, a housing 7 provided above the conveyor belt 2, a heat-sealing plate 10 inserted and lifted through the bottom surface of the housing 7, the heat-sealing plate 10 corresponding to the rubber plate 6, a support plate 8 fixedly connected to the end face of the housing 7, a slot 11 provided through the side wall of one of the support plates 8, a toothed plate 15 slidably connected inside the slot 11, a gear 17 meshing with the side wall of the toothed plate 15, a horizontal shaft 18 inserted and fixedly connected to the middle of the side wall of the gear 17, a horizontal tube 19 fixedly connected to the shaft end of the horizontal shaft 18, and a nitrogen filling tube 21 fixedly connected to the output end of the horizontal tube 19.

[0020] The side wall of the conveyor belt 2 is provided with a through hole 3, and the bottom surface of the baffle 4 is fixedly connected with a locking post 5, which corresponds to and engages with the locking hole 3.

[0021] By adopting the above technical solution, the baffle 4 is used to limit and block the packaging bag containing pre-cooked food. When placing the packaging bag containing pre-cooked food, the bag opening should be open and located on the rubber plate 6. Through the cooperation of the locking post 5 and the locking hole 3, the baffle 4 can be fixed on the conveyor belt 2. When the position of the baffle 4 needs to be adjusted to accommodate packaging bags of different sizes, the locking post 5 on the baffle 4 can be engaged with the locking hole 3 at the required position to adjust the position of the baffle 4. The bottom surface of the rubber plate 6 is fixedly connected to the outer surface of the conveyor belt 2, and the rubber plate 6 is made of heat-resistant material so as to cooperate with the heat sealing plate 10 to heat seal the bag opening.

[0022] An electric cylinder 9 is inserted into the top surface of the housing 7. The outer shell of the electric cylinder 9 is fixedly connected to the side wall of the housing 7, and the output shaft end of the electric cylinder 9 is fixedly connected to the outer shell of the heat sealing plate 10.

[0023] By adopting the above technical solution, the electric cylinder 9 is started, and the heat sealing plate 10 can be moved up and down under the action of the output shaft of the electric cylinder 9. When the opening of the packaging bag containing the pre-cooked food moves to the bottom of the heat sealing plate 10, nitrogen can be filled into the packaging bag containing the pre-cooked food through the nitrogen filling pipe 21 to lock in freshness. After the nitrogen filling is completed, the electric cylinder 9 can be controlled to make the heat sealing plate 10 fall down, so as to cooperate with the rubber plate 6 to heat seal the opening of the packaging bag, thereby sealing the nitrogen in the packaging bag containing the pre-cooked food.

[0024] A guide plate 12 is fixedly connected to the inner bottom wall of the slot 11, and a slide rail 16 is fixedly connected to the bottom surface of the toothed plate 15. The slide rail 16 corresponds to and is slidably connected to the guide plate 12.

[0025] By adopting the above technical solution, activating the electric push rod 13 allows the toothed plate 15 to move. Through the meshing of the toothed plate 15 and the gear 17, the horizontal shaft 18 can rotate, which in turn allows the horizontal tube 19 to rotate. When the toothed plate 15 moves, the cooperation between the slide rail 16 and the guide plate 12 ensures smoother movement of the toothed plate 15. Figure 3 As shown, when the toothed plate 15 is at its minimum stroke, the nitrogen filling tube 21 is in the nitrogen filling working position. When the toothed plate 15 moves to its maximum stroke, the nitrogen filling tube 21 will rotate around the horizontal axis 18 to move away from the nitrogen filling working position, thereby separating from the bag opening of the packaging bag and tilting it to avoid affecting the movement of the packaged bag after packaging.

[0026] An electric push rod 13 is provided on one side of the support plate 8. The output shaft end of the electric push rod 13 is fixedly connected to the end face of the toothed plate 15. A fixed seat 14 is provided on the side wall of the electric push rod 13. The side wall of the fixed seat 14 is fixedly connected to the outer side wall of the conveyor frame 1.

[0027] By adopting the above technical solution, the electric push rod 13 is installed through the fixed base 14, and starting the electric push rod 13 can move the toothed plate 15.

[0028] A convex plate 22 is rotatably connected to the end of the horizontal shaft 18 away from the horizontal tube 19. The side wall of the convex plate 22 is fixedly connected to the outer side wall of the conveyor frame 1. A nitrogen gas delivery connector 20 is fixedly connected to the input end of the horizontal tube 19.

[0029] By adopting the above technical solution, the convex plate 22 is used to support the rotation of the horizontal shaft 18, and the nitrogen delivery connector 20 is used to connect to the output end of the external nitrogen supply machine for nitrogen filling operation.

[0030] Working principle: When using this utility model, the bag opening is open and located on the rubber plate 6 when packaging bags containing pre-cooked food. The position of the baffle 4 is adjusted by the cooperation of the locking post 5 and the locking hole 3 so that the baffle 4 can limit and block the packaging bag containing pre-cooked food. When packaging the same batch of bags, only one adjustment is needed for reuse.

[0031] Next, the packaging bag containing the pre-cooked food is transported by the conveyor belt 2. When the opening of the packaging bag containing the pre-cooked food moves to the bottom of the heat sealing plate 10, nitrogen can be filled into the packaging bag containing the pre-cooked food through the nitrogen filling pipe 21 to lock in freshness, so as to expel the air in the packaging bag and avoid residual oxygen causing the pre-cooked food to oxidize and deteriorate. After the nitrogen filling is completed, the electric cylinder 9 is controlled to make the heat sealing plate 10 fall until it contacts the rubber plate 6 to heat seal and pressurize the opening of the packaging bag, thereby sealing the nitrogen in the packaging bag containing the pre-cooked food.

[0032] Then, the electric push rod 13 is activated, causing the toothed plate 15 to move to its maximum stroke. Through the meshing of the toothed plate 15 and the gear 17, the horizontal shaft 18 is rotated, which in turn causes the horizontal tube 19 to drive the nitrogen filling tube 21 to rotate, so that the nitrogen filling tube 21 is separated from the opening of the packaging bag and is tilted, so as to avoid affecting the movement of the packaged bag after packaging.

[0033] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A pre-cut vegetable freshness retaining packaging machine comprising a conveyor frame (1), characterized in that: The conveyor frame (1) includes a conveyor belt (2), a baffle (4) is detachably provided on the outer surface of the conveyor belt (2), a rubber plate (6) is provided on one side of the baffle (4), a housing (7) is provided above the conveyor belt (2), a heat sealing plate (10) is provided in a height-adjustable manner through the bottom surface of the housing (7), the heat sealing plate (10) corresponds to the rubber plate (6), a support plate (8) is fixedly connected to the end face of the housing (7), a slot (11) is provided through the side wall of one of the support plates (8), a toothed plate (15) is slidably connected inside the slot (11), a gear (17) is meshed on the side wall of the toothed plate (15), a horizontal shaft (18) is fixedly connected through the middle of the side wall of the gear (17), a horizontal tube (19) is fixedly connected to the shaft end of the horizontal shaft (18), and a nitrogen filling tube (21) is fixedly connected to the output end of the horizontal tube (19).

2. The pre-cut, color-locked package machine of claim 1, wherein, The side wall of the conveyor belt (2) is provided with a through hole (3), and the bottom surface of the baffle (4) is fixedly connected with a locking post (5). The locking post (5) corresponds to and engages with the locking hole (3).

3. The pre-cut, color-locked package machine of claim 1, wherein, An electric cylinder (9) is inserted through the top surface of the housing (7). The outer shell of the electric cylinder (9) is fixedly connected to the side wall of the housing (7). The output shaft end of the electric cylinder (9) is fixedly connected to the outer shell of the heat sealing plate (10).

4. The pre-cut, color-locked package machine of claim 1, wherein, The inner bottom wall of the slot (11) is fixedly connected to a guide plate (12), and the bottom surface of the toothed plate (15) is fixedly connected to a slide rail (16). The slide rail (16) corresponds to and is slidably connected to the guide plate (12).

5. The pre-cut, color-locked package machine of claim 1, wherein, An electric push rod (13) is provided on one side of the support plate (8), and the output shaft end of the electric push rod (13) is fixedly connected to the end face of the toothed plate (15).

6. The pre-cut, color-locked package machine of claim 5, wherein, The electric push rod (13) has a fixed seat (14) on its side wall, and the side wall of the fixed seat (14) is fixedly connected to the outer side wall of the conveyor frame (1).

7. The pre-cut, color-locked package machine of claim 1, wherein, The end of the horizontal shaft (18) away from the horizontal tube (19) is rotatably connected to a protruding plate (22), and the side wall of the protruding plate (22) is fixedly connected to the outer side wall of the conveyor frame (1).

8. The pre-cut, color-locked package machine of claim 1, wherein, The input end of the horizontal tube (19) is fixedly connected to a nitrogen delivery connector (20).

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