A fresh food package production and packaging device and use method thereof

Abstract

The present invention discloses a production and packaging device for fresh food cooking packages, which relates to the technical field of cooking package packaging, and includes: a bearing seat, a lifting mechanism, a grabbing mechanism, a heat-sealing mechanism, a second electric telescopic rod, and a feeding mechanism. The lifting mechanism is installed on the top of the bearing seat, the grabbing mechanism is installed on the end of the lifting mechanism, the heat-sealing mechanism is installed between the bearing seat and the lifting mechanism, the heat-sealing mechanism is used for pressing the frame of the packaging box and heat-sealing the film, the second electric telescopic rod is fixed to the surface of the bearing seat, and the feeding mechanism is installed at one end of the bearing seat. The present invention utilizes the arrangement mode of the lifting mechanism, the grabbing mechanism, and the heat-sealing mechanism to facilitate the lifting mechanism to drive the grabbing mechanism to grab the heat-sealing film, and move the heat-sealing film to the top of the packaging box, so as to facilitate the support of the top frame of the packaging box and heat-sealing the packaging box at the same time, so as to avoid the compression of the packaging box during the packaging, and improve the stability and sealing of the packaging.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking bag packaging, and in particular to a fresh cooking bag production and packaging device and a use method thereof. Background Art

[0002] As consumers' demand for the freshness, safety and convenience of fresh food continues to increase, the production and packaging equipment of fresh food packs plays an increasingly important role in the food industry. The production and packaging equipment of fresh food packs is a key equipment to ensure the freshness and safety of food and improve production efficiency.

[0003] The existing production and packaging equipment of fresh food packages uses a heat-sealing packaging machine for film sealing and packaging. The fresh food is placed in a packaging box manually or mechanically, and then placed in a designated position of the packaging machine and heat-sealed by a heating plate. However, since the existing packaging boxes are made of plastic, especially some packaging boxes are relatively thin, the packaging boxes are easily flattened when the heating plate is pressed down for heat sealing, which not only easily causes damage to the fresh food, but also easily causes the heat-sealed packaging to be unsealed due to the compression and deformation of the packaging box, thereby affecting the stability of the packaging. Summary of the invention

[0004] The object of the present invention is to provide a fresh food package production and packaging device and a method of using the same to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a fresh food package production and packaging device, comprising:

[0006] Bearing seat;

[0007] A lifting mechanism, the lifting mechanism is installed on the top of the bearing seat;

[0008] A grabbing mechanism, the grabbing mechanism is installed at the end of the lifting mechanism, and the grabbing mechanism is used to grab the heat-sealing film; the lifting mechanism is used for the rotation and vertical movement of the grabbing mechanism;

[0009] A heat sealing mechanism, which is installed between the bearing seat and the lifting mechanism and is used for pressing the frame of the packaging box and heat-sealing the film;

[0010] a second electric telescopic rod, the second electric telescopic rod being fixed to the surface of the bearing seat;

[0011] A material unloading mechanism is installed at one end of the bearing seat.

[0012] Preferably, the lifting mechanism comprises:

[0013] A bracket, wherein the bracket is fixed to the middle part of the bearing seat;

[0014] A first electric telescopic rod, wherein the first electric telescopic rod is fixed to the middle part of the bracket;

[0015] A fixing box, wherein the fixing box is fixed to the bottom of the first electric telescopic rod;

[0016] A rotating cylinder, wherein the rotating cylinder is installed in the inner cavity of the fixed box;

[0017] A bearing rod is connected to the rotating end of the rotating cylinder, and the grabbing mechanism is arranged at the end of the bearing rod.

[0018] Preferably, the gripping mechanism comprises:

[0019] A sliding rod, wherein the sliding rod is slidably interlaced with the end of the bearing rod;

[0020] A suction cup, the suction cup being fixed to the bottom of the sliding rod;

[0021] A first compression spring is sleeved on the outer wall of the sliding rod and is fixed between the suction cup and the bearing rod.

[0022] Preferably, an air pump is fixedly connected to the bearing rod, and the air pump is fixedly connected to the top of multiple sliding rods through an air pipe. The inner cavity of the sliding rod is connected to the inner cavity of the suction cup, and the air pump is used for gas adsorption and gas blowing in the inner cavity of the suction cup.

[0023] Preferably, the heat sealing mechanism comprises:

[0024] A heating component, which is arranged at the bottom of the bracket and is used to heat the top of the frame of the packaging box;

[0025] A bearing assembly, which is arranged directly below the heating assembly and is used to support the bottom of the frame of the packaging box;

[0026] Balls, a plurality of which are respectively arranged on the heating component and the bearing component;

[0027] A bidirectional screw rod, each of which is rotated and inserted into the side of the bracket, and the same bidirectional screw rod is arranged at the same end of the heating component and the bearing component;

[0028] A synchronization component, which is arranged at the bottom of the two bidirectional screw rods and is used for synchronously driving the two bidirectional screw rods;

[0029] A servo motor, wherein the output end of the servo motor is transmission-connected to the bottom of one of the bidirectional lead screws.

[0030] Preferably, the heating assembly comprises:

[0031] A heat sealing frame, wherein the heat sealing frame is slidably inserted under an adjacent gripping mechanism;

[0032] A heating plate, wherein the heating plate is fixedly embedded in the bottom of the heat sealing frame;

[0033] A connecting rod is fixed to the side of the heat sealing frame, and is slidably connected to the inner wall side of the bracket, wherein a plurality of balls are respectively embedded in the outer wall of the connecting rod, and the ends opposite to the two connecting rods are respectively connected to the top threads of the two bidirectional screw rods.

[0034] Preferably, the bearing assembly comprises:

[0035] A connecting groove, the connecting groove is formed on the surface of the bearing seat;

[0036] A carrying frame, the carrying frame is slidably inserted into the inner cavity of the connecting groove;

[0037] The support frame is fixed to the bottom of the bearing frame, and the ends of the two support frames facing away from each other are respectively connected with the bottom threads of the two bidirectional screw rods, and multiple balls are respectively embedded in the outer wall of the support frame.

[0038] Preferably, the unloading mechanism comprises:

[0039] A movable groove, the movable groove is provided at one end of the bearing seat;

[0040] A rotating column, wherein the rotating column is rotated and inserted into the inner cavity of the movable groove through a pin shaft;

[0041] A blanking plate, one end of which is fixedly connected to the outer wall of the rotating column, and the blanking plate is arranged in an inclined surface;

[0042] A second compression spring, wherein the second compression spring is fixed between the blanking plate and the bearing seat;

[0043] An arc rod, wherein the arc rod is sleeved in the inner cavity of the second compression spring, and the second compression spring is used for elastic support of the blanking plate;

[0044] The limiting groove is formed on the outer wall of the bearing seat.

[0045] Preferably, one end of the arc rod is fixedly connected to the inner wall of the blanking plate, and the other end of the arc rod is slidably and interlacedly connected to the inner cavity of the limiting groove.

[0046] The present invention also provides a method for using a fresh food package production and packaging device, comprising the following specific steps:

[0047] Step 1: Place the packaging box containing fresh food on the surface of the support base by machine or manually, and place the stacked heat-sealing films and packaging boxes in the same vertical row directly under the two suction cups;

[0048] Step 2: Drive the first electric telescopic rod to facilitate the downward movement of the carrying rod, so that one of the suction cups can contact the heat-sealing film, and by starting the air pump, the suction cup can adsorb the film, the first electric telescopic rod drives the carrying rod to retract, and drives the rotating cylinder to change the position of the two suction cups, so that the suction cup adsorbing the heat-sealing film can move to the top of the packaging box, and drive the first electric telescopic rod again to make the heat-sealing film fit the frame of the packaging box;

[0049] Step three: drive the servo motor to rotate its two bidirectional screws synchronously through the synchronization component, so that the heat sealing frame moves down and the carrying frame moves up, so that the carrying frame and the bottom of the frame of the packaging box are supported and fixed, and the heating plate at the bottom of the heat sealing frame heats and seals the heat sealing film attached to the packaging box. After sealing, drive the second electric telescopic rod so that the sealed packaging box can be pushed to the unloading plate for unloading.

[0050] Technical effects and advantages of the present invention:

[0051] (1) The present invention utilizes a coordinated arrangement of a lifting mechanism, a grabbing mechanism, and a heat-sealing mechanism, so that the lifting mechanism can drive the grabbing mechanism to grab the heat-sealing film and move the heat-sealing film to the top of the packaging box. Through the arrangement of the heat-sealing mechanism, it is convenient to support the top frame of the packaging box while performing heating and sealing, thereby avoiding pressure on the packaging box during packaging and improving the stability and sealing of the packaging;

[0052] (2) The present invention utilizes a configuration in which the second electric telescopic rod and the unloading mechanism cooperate with each other. The second electric telescopic rod facilitates the pushing out of the packaged packaging box, and the configuration of the heat-sealing mechanism does not affect the movement of the packaged packaging box. The configuration of the unloading mechanism can prevent the packaged packaging box from falling directly into the transfer box, thereby reducing the breakage of the packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0054] Figure 2 It is a schematic diagram of the side cross-sectional structure of the heat sealing frame of the present invention.

[0055] Figure 3 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0056] Figure 4 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0057] Figure 5 It is a front cross-sectional structural schematic diagram of the bearing seat of the present invention.

[0058] Figure 6 For the present invention Figure 5 Schematic diagram of the partial enlarged structure at point C in the middle.

[0059] In the figure: 1. bearing seat; 2. lifting mechanism; 21. bracket; 22. first electric telescopic rod; 23. fixing box; 24. rotating cylinder; 25. bearing rod; 3. grabbing mechanism; 31. sliding rod; 32. suction cup; 33. first compression spring; 4. heat sealing mechanism; 41. heating component; 411. heat sealing frame; 412. heating plate; 413. connecting rod; 42. bearing component; 421. connecting groove; 422. bearing frame; 423. supporting frame; 43. ball bearing; 44. bidirectional screw rod; 45. synchronization component; 46. servo motor; 5. second electric telescopic rod; 6. unloading mechanism; 61. movable groove; 62. rotating column; 63. unloading plate; 64. second compression spring; 65. arc rod; 66. limit groove. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] Embodiment 1

[0062] The present invention provides Figure 1-6 A fresh food package production and packaging device shown in the figure includes: a supporting seat 1, a lifting mechanism 2, a grabbing mechanism 3, and a heat-sealing mechanism 4. The lifting mechanism 2 is installed on the top of the supporting seat 1, and the grabbing mechanism 3 is installed at the end of the lifting mechanism 2. The grabbing mechanism 3 is used for grabbing the heat-sealing film; the lifting mechanism 2 is used for the rotation and vertical movement of the grabbing mechanism 3, and the heat-sealing mechanism 4 is installed between the supporting seat 1 and the lifting mechanism 2. The heat-sealing mechanism 4 is used for pressing the frame of the packaging box and heat-sealing the film.

[0063] Among them, the lifting mechanism 2 includes: a bracket 21, a first electric telescopic rod 22, a fixed box 23, a rotating cylinder 24 and a bearing rod 25. The bracket 21 is fixed to the middle of the bearing seat 1, and the bracket 21 is an inverted U-shaped structure. The first electric telescopic rod 22 is fixed to the middle of the bracket 21, the fixed box 23 is fixed to the bottom of the first electric telescopic rod 22, the rotating cylinder 24 is installed in the inner cavity of the fixed box 23, and the bearing rod 25 is connected to the rotating end of the rotating cylinder 24. Through the drive of the rotating cylinder 24, the bearing rod 25 can be rotated 180°, so that the position of the end of the bearing rod 25 can be replaced.

[0064] In addition, the grabbing mechanism 3 is arranged at the end of the carrying rod 25, and the grabbing mechanism 3 includes: a sliding rod 31, a suction cup 32 and a first compression spring 33. The sliding rod 31 is slidably and interlacedly connected with the end of the carrying rod 25, the suction cup 32 is fixed to the bottom of the sliding rod 31, and the first compression spring 33 is sleeved on the outer wall of the sliding rod 31. The first compression spring 33 is fixed between the suction cup 32 and the carrying rod 25. Through the elasticity of the first compression spring 33, it is convenient to elastically pull the suction cup 32 to prevent the suction cup 32 from squeezing and damaging the plastic film, and it is also convenient to adsorb and grasp plastic films with different stacking thicknesses. An air pump is fixedly connected to the carrying rod 25, and the air pump is fixedly and interlacedly connected with the tops of multiple sliding rods 31 through an air pipe. The inner cavity of the sliding rod 31 is communicated with the inner cavity of the suction cup 32. The air pump is used for gas adsorption and gas blowing in the inner cavity of the suction cup 32, so that the suction cup 32 can stably grasp and release the plastic film.

[0065] Furthermore, the heat sealing mechanism 4 includes: a heating component 41, a bearing component 42, a ball 43, two bidirectional screws 44, a synchronization component 45 and a servo motor 46, the heating component 41 is arranged at the bottom of the bracket 21, the heating component 41 is used to heat the top of the packaging box frame, the bearing component 42 is arranged directly below the heating component 41, the bearing component 42 is used to support the bottom of the packaging box frame, a plurality of ball bearings 43 are respectively arranged on the heating component 41 and the bearing component 42, the bidirectional screw 44 is respectively rotated and inserted into the side of the bracket 21, that is, the inner wall of the bracket 21 is provided with a sliding groove on both sides, the top of the bidirectional screw 44 is rotatably inserted and connected with the inner cavity of the sliding groove through the bearing, and the bottom of the bidirectional screw 44 is connected to the bearing seat 1 through the bearing. The two bidirectional screw rods 44 are connected in a side rotational interlaced connection, and the same bidirectional screw rod 44 is arranged at the same end of the heating component 41 and the load-bearing component 42. The synchronization component 45 is arranged at the bottom of the two bidirectional screw rods 44. The synchronization component 45 is used for synchronously driving the two bidirectional screw rods 44. The synchronization component 45 includes two sprockets and a chain. The chain is arranged between the two sprockets, and the two sprockets are respectively fixedly interlaced with the bottoms of the two bidirectional screw rods 44, so that the two bidirectional screw rods 44 can rotate synchronously. The output end of the servo motor 46 is transmission-connected to the bottom of one of the bidirectional screw rods 44. The servo motor 46 is electrically connected to an external power supply through an external switch. Through the drive of the servo motor 46, the two bidirectional screw rods 44 can be stably driven in the forward and reverse directions.

[0066] Specifically, the heating assembly 41 includes: a heat sealing frame 411, a heating plate 412 and a connecting rod 413. The heat sealing frame 411 is slidably inserted under an adjacent grasping mechanism 3. The heat sealing frame 411 is a frame structure that matches the frame of the packaging box. The heating plate 412 is fixedly embedded in the bottom of the heat sealing frame 411. The heating plate 412 is a closed frame structure. The heating plate 412 is connected to an external switch through a power cord to facilitate heating and packaging of the contacted heat-sealing film. The connecting rod 413 is fixed to the side of the heat sealing frame 411. The two connecting rods 413 are respectively fixed to the two sides of the heat sealing frame 411, and the connecting rod 413 is slidably inserted and connected with the inner wall side of the bracket 21, wherein a plurality of ball bearings 43 are respectively embedded in the outer wall of the connecting rod 413, and the ends opposite to the two connecting rods 413 are respectively inserted and connected with the top threads of the two bidirectional screw rods 44. Through the rotation of the bidirectional screw rod 44, the connecting rod 413 can drive the heat sealing frame 411 to move stably.

[0067] More specifically, the bearing assembly 42 includes: a connecting groove 421, a bearing frame 422 and a support frame 423. The connecting groove 421 is opened on the surface of the bearing seat 1, the bearing frame 422 slides and inserts into the inner cavity of the connecting groove 421, and the support frame 423 is fixed to the bottom of the bearing frame 422. The ends of the two support frames 423 facing away from each other are respectively connected with the bottom threads of the two bidirectional screw rods 44. By rotating the bidirectional screw rod 44, the connecting rod 413 and the support frame 423 are relatively moved, so that the bearing frame 422 can move to the position corresponding to the bearing frame 422. When the bottom of the packaging box frame is in contact with each other, the heat-sealing frame 411 moves to a position in contact with the top of the packaging box frame, so that its supporting frame 422 can support the packaging box frame and its heating plate 412 can heat-seal the packaging box, thereby reducing the damage of the packaging box by packaging and squeezing, and improving the stability and sealing of the packaging. In addition, multiple ball bearings 43 are respectively embedded in the outer wall of the support frame 423, and the ball bearings 43 are rollingly connected to the inner wall of the adjacent sliding groove and the connecting groove 421, so as to improve the smoothness of the lifting and lowering movement of the connecting rod 413 and the support frame 423.

[0068] Embodiment 2

[0069] Different from the first embodiment, Figure 1 and Figure 4 The fresh food package production and packaging device shown in the figure also includes: a second electric telescopic rod 5 and a feeding mechanism 6, the second electric telescopic rod 5 is fixed to the surface of the bearing seat 1, the feeding mechanism 6 is installed at one end of the bearing seat 1, and the feeding mechanism 6 includes: an active groove 61, a rotating column 62, a feeding plate 63, a second compression spring 64, an arc rod 65 and a limiting groove 66, the active groove 61 is opened at one end of the bearing seat 1, and the rotating column 62 is rotated through the inner cavity of the active groove 61 through a pin shaft. The surface of the feeding plate 63 has a smooth structure, and the two ends of the feeding plate 63 have a winding structure to prevent the sharp structure from causing contact damage to the packaging box. One end of the feeding plate 63 is fixedly connected to the outer wall of the rotating column 62. The blanking plate 63 is set in an inclined surface, and the second compression spring 64 is fixed between the blanking plate 63 and the supporting seat 1. The arc rod 65 is sleeved in the inner cavity of the second compression spring 64. The second compression spring 64 is used for elastic support of the blanking plate 63. The limiting groove 66 is opened on the outer wall of the supporting seat 1. One end of the arc rod 65 is fixedly connected to the inner wall of the blanking plate 63, and the other end of the arc rod 65 is slidably and interlaced with the inner cavity of the limiting groove 66. Through the arc rod 65, the stability of the use of the second compression spring 64 is improved, so that the blanking plate 63 can be stably supported, so that the packaging box ejected from the supporting seat 1 can be stably slid and unloaded from the blanking plate 63, which can prevent the packaged packaging box from falling directly into the transfer box, thereby reducing the breakage of the packaging box.

[0070] Method of use of the present invention:

[0071] Place the packaging box containing fresh food on the surface of the support base 1 by machine or manually, and place the stacked heat-sealing films and the packaging boxes in the same vertical row directly below the two suction cups 32;

[0072] The first electric telescopic rod 22 is driven to facilitate the downward movement of the carrying rod 25, so that one of the suction cups 32 can contact the heat-sealing film, and the suction cup 32 can absorb the film by starting the air pump. The first electric telescopic rod 22 drives the carrying rod 25 to retract, and the rotary cylinder 24 is driven to change the position of the two suction cups 32, so that the suction cup 32 with the heat-sealing film absorbed can move to the top of the packaging box, and the first electric telescopic rod 22 is driven again to make the heat-sealing film fit the frame of the packaging box;

[0073] The servo motor 46 is driven to rotate its two bidirectional screws 44 synchronously through the synchronization component 45, so that the heat sealing frame 411 moves downward and the carrying frame 422 moves upward, so that the carrying frame 422 is supported and fixed to the bottom of the frame of the packaging box, and the heating plate 412 at the bottom of the heat sealing frame 411 heats and seals the heat sealing film attached to the packaging box. After sealing, the second electric telescopic rod 5 is driven so that the sealed packaging box can be pushed to the unloading plate 63 for unloading.

[0074] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fresh food package production and packaging device, characterized in that: include: A bearing seat (1); A lifting mechanism (2), wherein the lifting mechanism (2) is installed on the top of the bearing seat (1); A gripping mechanism (3), the gripping mechanism (3) is installed at the end of the lifting mechanism (2), and the gripping mechanism (3) is used for gripping the heat-sealing film; the lifting mechanism (2) is used for rotating the gripping mechanism (3) and moving it in a vertical direction; A heat sealing mechanism (4), the heat sealing mechanism (4) being installed between the bearing seat (1) and the lifting mechanism (2), the heat sealing mechanism (4) being used for pressing the frame of the packaging box and heat-sealing the film; A second electric telescopic rod (5), wherein the second electric telescopic rod (5) is fixed to the surface of the bearing seat (1); A material discharge mechanism (6), wherein the material discharge mechanism (6) is installed at one end of the bearing seat (1).

2. The fresh food package production and packaging device according to claim 1, characterized in that: The lifting mechanism (2) comprises: A bracket (21), wherein the bracket (21) is fixed to the middle part of the bearing seat (1); A first electric telescopic rod (22), wherein the first electric telescopic rod (22) is fixed to the middle part of the bracket (21); A fixing box (23), wherein the fixing box (23) is fixed to the bottom of the first electric telescopic rod (22); A rotating cylinder (24), wherein the rotating cylinder (24) is installed in the inner cavity of the fixed box (23); A bearing rod (25) is connected to the rotating end of the rotating cylinder (24), and the grabbing mechanism (3) is arranged at the end of the bearing rod (25).

3. The fresh food package production and packaging device according to claim 2, characterized in that: The gripping mechanism (3) comprises: A sliding rod (31), wherein the sliding rod (31) is slidably interlaced with the end of the bearing rod (25); A suction cup (32), wherein the suction cup (32) is fixed to the bottom of the sliding rod (31); A first compression spring (33), wherein the first compression spring (33) is sleeved on the outer wall of the sliding rod (31), and the first compression spring (33) is fixed between the suction cup (32) and the bearing rod (25).

4. The fresh food package production and packaging device according to claim 3, characterized in that: An air pump is fixedly connected to the bearing rod (25), and the air pump is fixedly connected to the top of a plurality of sliding rods (31) through an air pipe. The inner cavity of the sliding rod (31) is connected to the inner cavity of the suction cup (32). The air pump is used for gas adsorption and gas blowing in the inner cavity of the suction cup (32).

5. The fresh food package production and packaging device according to claim 2, characterized in that: The heat sealing mechanism (4) comprises: A heating component (41), the heating component (41) is arranged at the bottom of the bracket (21), and the heating component (41) is used to heat the top of the frame of the packaging box; A bearing assembly (42), the bearing assembly (42) being arranged directly below the heating assembly (41), and the bearing assembly (42) being used to support the bottom of the frame of the packaging box; Ball bearings (43), wherein a plurality of the ball bearings (43) are respectively arranged on the heating component (41) and the bearing component (42); A bidirectional screw rod (44), wherein the bidirectional screw rod (44) is respectively rotated and inserted into the side of the bracket (21), and the same bidirectional screw rod (44) is arranged at the same end of the heating component (41) and the bearing component (42); A synchronization component (45), wherein the synchronization component (45) is arranged at the bottom of the two bidirectional screw rods (44), and the synchronization component (45) is used for synchronously driving the two bidirectional screw rods (44); A servo motor (46), wherein an output end of the servo motor (46) is transmission-connected to the bottom of one of the bidirectional screw rods (44).

6. The fresh food package production and packaging device according to claim 5, characterized in that: The heating component (41) comprises: A heat sealing frame (411), wherein the heat sealing frame (411) is slidably inserted below an adjacent grasping mechanism (3); A heating plate (412), wherein the heating plate (412) is fixedly embedded in the bottom of the heat sealing frame (411); A connecting rod (413), wherein the connecting rod (413) is fixed to the side of the heat sealing frame (411), and the connecting rod (413) is slidably connected with the inner wall side of the bracket (21), wherein a plurality of balls (43) are respectively embedded in the outer wall of the connecting rod (413), and the opposite ends of the two connecting rods (413) are respectively connected with the top threads of the two bidirectional screw rods (44).

7. The fresh food package production and packaging device according to claim 5, characterized in that: The bearing assembly (42) comprises: A connecting groove (421), wherein the connecting groove (421) is formed on the surface of the supporting seat (1); A carrying frame (422), the carrying frame (422) being slidably inserted into the inner cavity of the connecting groove (421); A support frame (423), wherein the support frame (423) is fixed to the bottom of the supporting frame (422), and the ends of the two support frames (423) facing away from each other are respectively connected to the bottom threads of the two bidirectional screw rods (44), and a plurality of balls (43) are respectively embedded in the outer wall of the support frame (423).

8. The fresh food package production and packaging device according to claim 1, characterized in that: The unloading mechanism (6) comprises: A movable groove (61), wherein the movable groove (61) is formed at one end of the bearing seat (1); A rotating column (62), wherein the rotating column (62) is rotated and inserted into the inner cavity of the movable groove (61) through a pin shaft; A blanking plate (63), one end of which is fixedly connected to the outer wall of the rotating column (62) and the blanking plate (63) is arranged in an inclined surface; A second compression spring (64), wherein the second compression spring (64) is fixed between the blanking plate (63) and the bearing seat (1); An arc rod (65), wherein the arc rod (65) is sleeved in the inner cavity of a second compression spring (64), and the second compression spring (64) is used for elastic support of the blanking plate (63); A limiting groove (66), wherein the limiting groove (66) is formed on the outer wall of the bearing seat (1).

9. The fresh food package production and packaging device according to claim 8, characterized in that: One end of the arc rod (65) is fixedly connected to the inner wall of the blanking plate (63), and the other end of the arc rod (65) is slidably connected to the inner cavity of the limiting groove (66).

10. A method for using a fresh food package production and packaging device according to any one of claims 1 to 9, characterized in that: The specific usage steps are as follows: Step 1: placing a packaging box containing fresh food on the surface of the support base (1) by machine or manually, and placing the stacked heat-sealing films and the packaging boxes in the same vertical row directly below the two suction cups (32); Step 2: driving the first electric telescopic rod (22) to facilitate the downward movement of the carrying rod (25) so that one of the suction cups (32) can come into contact with the heat-sealing film, and by starting the air pump, the suction cup (32) can adsorb the film, the first electric telescopic rod (22) drives the carrying rod (25) to retract, driving the rotary cylinder (24) to change the position of the two suction cups (32), so that the suction cup (32) adsorbing the heat-sealing film can move to the top of the packaging box, and driving the first electric telescopic rod (22) again so that the heat-sealing film fits the frame of the packaging box; Step 3: driving the servo motor (46) to rotate its two bidirectional screw rods (44) synchronously through the synchronization component (45), so that the heat sealing frame (411) moves downward and the carrying frame (422) moves upward, so that the carrying frame (422) and the bottom of the frame of the packaging box are supported and fixed, and the heating plate (412) at the bottom of the heat sealing frame (411) heats and seals the heat sealing film attached to the packaging box. After sealing, the second electric telescopic rod (5) is driven so that the sealed packaging box can be pushed to the unloading plate (63) for unloading.

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