Tray type fruit and vegetable fresh-keeping packaging machine

Abstract

The invention discloses a tray type fruit and vegetable fresh-keeping packaging machine, belongs to the technical field of fruit and vegetable fresh-keeping packaging equipment, and aims to solve the technical problems that in the prior art, after a packaging box containing fruits and vegetables is packaged through vacuum film covering, the packaging box needs to be taken out and then placed into a new packaging box for packaging, and operation is tedious, time-consuming and labor-consuming. A sliding channel is formed in the upper wall of a bearing plate, an ejector block body is arranged on the upper wall of the sliding channel, the lower end of the ejector block body is fixedly connected with a sliding block, the sliding block is slidably connected with the inner wall of the sliding channel, and one end of the sliding block is fixedly connected with an outer supporting spring; the end, away from the sliding block, of the outer supporting spring is fixedly connected with the inner wall of the sliding channel, the locking plate is opened, at the moment, the outer supporting spring in a pressed state gives reactive force to the sliding block, the ejector block body is driven to reversely push the packaging box instantly, and therefore the packaging box is pushed into the collecting assembly to complete discharging and collecting, and great convenience is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fruit and vegetable fresh-keeping packaging equipment, and in particular to a tray-type fruit and vegetable fresh-keeping packaging machine. Background Art

[0002] With the improvement of people's living standards and the change of consumption habits, the demand for fresh fruits and vegetables is growing. Tray-type fruit and vegetable fresh-keeping packaging machines can effectively extend the shelf life of fruits and vegetables, reduce losses, and meet the market demand for high-quality fruit and vegetable products. Technological innovation: With the continuous development of automation and intelligent technology, the packaging machinery industry has also ushered in a wave of technological innovation. As a representative of them, tray-type fruit and vegetable fresh-keeping packaging machines have greatly improved packaging efficiency and product quality.

[0003] The patent of CN209176979U discloses a small food fruit and vegetable fresh-keeping packaging machine, including a housing, the inner wall of the housing is fixedly connected with a first partition plate and a second partition plate, the right side of the housing is provided with a feed port, the top of the first partition plate is provided with a first through slot, the inner wall of the first through slot is rotatably connected with a first shaft rod, and the side surface of the first shaft rod is fixedly sleeved with a driving roller and a driven wheel. Thus, the first L-shaped rod and the second L-shaped rod move toward the middle at the same time, and the first pressing rod and the second pressing rod are used to resist the edge sealing of the fresh-keeping film on the four sides of the box, and the box is squeezed upward, so that the excess fresh-keeping film on the side is squeezed to the bottom of the box, and is bonded to each other, so that the fresh-keeping film is sealed and wrapped around the box, and the food fruits and vegetables are kept fresh, thereby saving labor, improving packaging efficiency, and uniform packaging can also improve the quality of packaging preservation, and avoid the safety problem of food caused by artificial random packaging; however, after the packaging box loaded with fruits and vegetables is packed by vacuum laminating packaging, it is necessary to take out the packaging box and put it into a new packaging box for packaging, which is relatively cumbersome, time-consuming and labor-intensive.

[0004] To solve the above problems, a tray-type fruit and vegetable fresh-keeping packaging machine is proposed. Summary of the invention

[0005] The object of the present invention is to provide a tray-type fruit and vegetable fresh-keeping packaging machine, wherein a sliding channel is opened through the upper wall of a carrying plate, a top block body is arranged on the upper wall of the sliding channel, a sliding block is fixedly connected to the lower end of the top block body, the sliding block is slidably connected to the inner wall of the sliding channel, an external support spring is fixedly connected to one end of the sliding block, and an end of the external support spring away from the sliding block is fixedly connected to the inner wall of the sliding channel, thereby solving the problems in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a tray-type fruit and vegetable fresh-keeping packaging machine, comprising a machine body, and a loading tray assembly arranged on the upper wall of the machine body, wherein the upper end of the tray assembly is provided with a vacuum extrusion plate installed on the side wall of the machine body, a connecting frame is installed on one side of the machine body, a fresh-keeping film winding roller is rotatably connected to the inner wall of the connecting frame, and a collecting assembly is provided at one end of the machine body away from the connecting frame;

[0007] The tray assembly includes a bearing plate arranged on the upper wall of the body, and a locking plate axially connected to one side of the bearing plate, the upper wall of the bearing plate is provided with a sliding channel, the upper wall of the sliding channel is provided with a top block body, the lower end of the top block body is fixedly connected with a sliding block, the sliding block is slidably connected to the inner wall of the sliding channel, one end of the sliding block is fixedly connected with an external support spring, and the end of the external support spring away from the sliding block is fixedly connected to the inner wall of the sliding channel.

[0008] Furthermore, the carrying plate is used to carry the packaging box, and when the packaging box is completely in the carrying plate, the top block body is in contact with the inner wall of the carrying plate.

[0009] Furthermore, when the main body of the top block is in contact with the inner wall of the bearing plate, the outer support spring is pressed by the sliding block.

[0010] Furthermore, the collection assembly includes a storage box overlapped on one side of the body, the lower end of the storage box is fixedly connected with an elastic rod and a connecting plate, the lower ends of the elastic rod and the connecting plate are provided with a lower connecting plate, and the upper wall of the lower connecting plate is provided with a movable groove.

[0011] Furthermore, the connecting plate is slidably connected to the inner wall of the movable groove.

[0012] Furthermore, a movable block is fixedly connected to the lower end of the bearing plate, the movable block penetrates the upper wall of the machine body, and the movable block is slidably connected to the upper wall of the machine body, and the lower end of the movable block is fixedly connected to the gear rod body.

[0013] Furthermore, two groups of connecting disks are fixedly connected to the outer wall of one side of the machine body close to the cling film winding roller, a lower rotating rod is rotatably connected between the two groups of connecting disks, and a first gear is fixedly connected to the outer wall of the lower rotating rod.

[0014] Furthermore, one side of the first gear is meshedly connected with a second gear, the second gear is rotatably connected to the inner wall of the body, and the side of the second gear away from the first gear is meshedly connected to the gear rod body.

[0015] Furthermore, the outer walls of the cling film winding roller and the lower rotating rod are fixedly connected with a transmission wheel, the outer wall of the transmission wheel is transmission-connected with a transmission belt, and the cling film winding roller and the lower rotating rod can rotate synchronously through the cooperation of the transmission wheel and the transmission belt.

[0016] Another technical solution proposed by the present invention is to provide an implementation method of a tray-type fruit and vegetable fresh-keeping packaging machine, comprising the following steps:

[0017] S1: Put the fruits and vegetables into the packaging box, and then put the packaging box into the cavity of the carrier plate. At this time, the top block body will be squeezed by the packaging box, and the top block body will drive the sliding block to move on the inner wall of the sliding channel. When the packaging box is completely in the carrier plate, the top block body is attached to the inner wall of the carrier plate, and the outer support spring is pressed by the sliding block. At this time, the locking plate is locked. At this time, the cling film winding roller is externally connected to the motor. When the cling film winding roller rotates, it pulls the cling film, and the cling film completely covers the packaging box;

[0018] S2: When the cling film winding roller rotates, the transmission wheel and the transmission belt cooperate to drive the lower rotating rod to rotate synchronously. At this time, the lower rotating rod drives the first gear to rotate. The first gear drives the gear rod body to move upward through the cooperation with the second gear, thereby driving the movable block to move upward through the gear rod body, so that the movable block drives the bearing plate to move closer to the vacuum extrusion disk. Therefore, when the film coating is completed, the film coating and packaging of the packaging box are completed at the same time, and the cling film winding roller is driven by the motor to rotate in the opposite direction. Similarly, the movable block drives the bearing plate to move downward. After the bearing plate returns to its original position, the cling film winding roller will roll up the excess cling film;

[0019] S3: Finally, the locking plate is opened. At this time, the reaction force given to the sliding block by the external support spring in the compressed state drives the top block body to instantly push the packaging box back, thereby pushing the packaging box into the collection component to complete the unloading collection.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. A tray-type fruit and vegetable fresh-keeping packaging machine, when the packaging box is completely in the carrying plate, the top block body is attached to the inner wall of the carrying plate, and the external support spring is pressed by the sliding block, at this time, the locking plate is locked, and at this time, the plastic wrap winding roller is externally connected to a motor, and the plastic wrap winding roller pulls the plastic wrap when it rotates, and the plastic wrap completely covers the packaging box, and the vacuum extrusion plate is used to evacuate and press it. At this time, the packaging can be completed, and then the locking plate is opened. At this time, the external support spring in the compressed state gives a reaction force to the sliding block, which drives the top block body to instantly push the packaging box back, thereby pushing the packaging box into the collection component to complete the unloading collection, which is extremely convenient and solves the problem that after the packaging box of fruits and vegetables is loaded with vacuum coating packaging, the packaging box needs to be taken out and then put into a new packaging box for packaging, and its operation is relatively cumbersome, time-consuming and labor-intensive.

[0022] 2. A tray-type fruit and vegetable fresh-keeping packaging machine, when the fresh-keeping film winding roller rotates, it will drive the lower rotating rod to rotate synchronously through the cooperation of the transmission wheel and the transmission belt. At this time, the lower rotating rod will drive the first gear to rotate, and the first gear will drive the toothed rod body to move upward through the cooperation with the second gear, thereby driving the movable block to move upward through the toothed rod body, so that the movable block drives the bearing plate to move closer to the vacuum extrusion disk. Therefore, when the film coating is completed, the film coating and packaging of the packaging box are completed at the same time, and the work efficiency is extremely high. After packaging, the fresh-keeping film winding roller is driven by the motor to rotate in the opposite direction. Similarly, the movable block drives the bearing plate to move downward. After the bearing plate returns to its original position, the fresh-keeping film winding roller will roll up the excess fresh-keeping film to avoid unnecessary waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the tray-type fruit and vegetable fresh-keeping packaging machine of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall planar structure of the tray-type fruit and vegetable fresh-keeping packaging machine of the present invention;

[0025] Figure 3 It is a schematic structural diagram of a loading tray assembly of a tray-type fruit and vegetable fresh-keeping packaging machine of the present invention;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the collecting component of the tray-type fruit and vegetable fresh-keeping packaging machine of the present invention;

[0027] Figure 5 It is a schematic diagram of the planar structure of the collecting component of the tray-type fruit and vegetable fresh-keeping packaging machine of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the first gear and the second gear of the tray-type fruit and vegetable fresh-keeping packaging machine of the present invention;

[0029] Figure 7 The tray-type fruit and vegetable fresh-keeping packaging machine of the present invention Figure 6 A is an enlarged structural diagram of FIG.

[0030] In the figure: 1. body; 2. tray assembly; 21. load-bearing plate; 22. locking plate; 23. sliding channel; 24. top block body; 25. sliding block; 26. external support spring; 3. vacuum extrusion plate; 4. connecting frame; 5. cling film winding roller; 6. collecting assembly; 61. storage box; 62. elastic rod; 63. connecting plate; 64. lower connecting plate; 65. movable groove; 7. movable block; 8. gear rod body; 9. lower rotating rod; 10. connecting plate; 11. first gear; 12. second gear; 13. transmission wheel; 14. transmission belt. DETAILED DESCRIPTION

[0031] 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.

[0032] In order to solve the technical problem that after the packaging box loaded with fruits and vegetables is packed by vacuum lamination, it is necessary to take out the packaging box and put it into a new packaging box for packaging, which is cumbersome, time-consuming and labor-intensive. Figure 1-7 As shown, the following preferred technical solutions are provided:

[0033] A tray-type fruit and vegetable fresh-keeping packaging machine comprises a body 1, and a loading tray assembly 2 arranged on the upper wall of the body 1, a vacuum extrusion disk 3 installed on the side wall of the body 1 is arranged on the upper end of the tray assembly 2, a connecting frame 4 is installed on one side of the body 1, a fresh-keeping film winding roller 5 is rotatably connected to the inner wall of the connecting frame 4, a collecting assembly 6 is arranged on the end of the body 1 away from the connecting frame 4, the tray assembly 2 comprises a bearing plate 21 arranged on the upper wall of the body 1, and a locking plate 22 axially connected to one side of the bearing plate 21, a sliding channel 23 is opened on the upper wall of the bearing plate 21, a top block body 24 is arranged on the upper wall of the sliding channel 23, a sliding block 25 is fixedly connected to the lower end of the top block body 24, the sliding block 25 is slidably connected to the inner wall of the sliding channel 23, one end of the sliding block 25 is fixedly connected to an external support spring 26, and the end of the external support spring 26 away from the sliding block 25 is fixedly connected to the inner wall of the sliding channel 23.

[0034] The carrying plate 21 is used to load the packaging box, and when the packaging box is completely in the carrying plate 21 , the top block body 24 is in contact with the inner wall of the carrying plate 21 . When the top block body 24 is in contact with the inner wall of the carrying plate 21 , the outer support spring 26 is pressed by the sliding block 25 .

[0035] Specifically, when fruits and vegetables are packaged for fresh-keeping, the fruits and vegetables are placed in a packaging box, and then the packaging box is placed in the cavity of the carrier plate 21. At this time, the top block body 24 is squeezed by the packaging box, and the top block body 24 is used to drive the sliding block 25 to move on the inner wall of the sliding channel 23. When the packaging box is completely in the carrier plate 21, the top block body 24 is attached to the inner wall of the carrier plate 21, and the external support spring 26 is pressed by the sliding block 25. At this time, the locking plate 22 is locked. At this time, the cling film winding roller 5 is externally connected to a motor, and the cling film winding roller 5 rotates to pull the cling film. The packaging box is completely covered with plastic wrap, and the vacuum extrusion disc 3 is used to evacuate and compress it. At this time, the packaging is completed, and then the locking plate 22 is opened. At this time, the reaction force of the sliding block 25 is given by the external support spring 26 in the compressed state, which drives the top block body 24 to instantly push the packaging box back, thereby pushing the packaging box into the collection component 6 to complete the unloading collection. It is extremely convenient and solves the problem that after the packaging box loaded with fruits and vegetables is packed by vacuum coating, the packaging box needs to be taken out and then put into a new packaging box for packaging, and the operation is relatively cumbersome, time-consuming and labor-intensive.

[0036] The collecting assembly 6 includes a storage box 61 overlapped on one side of the body 1, and the lower end of the storage box 61 is fixedly connected with an elastic rod 62 and a connecting plate 63, and a lower connecting plate 64 is provided at the lower ends of the elastic rod 62 and the connecting plate 63. A movable groove 65 is opened on the upper wall of the lower connecting plate 64, and the connecting plate 63 is slidably connected to the inner wall of the movable groove 65.

[0037] Specifically, when the packaging box is pushed back by the top block body 24, the packaging box will fall into the storage box 61. The gravity generated by the packaging box falling into the storage box 61 will drive the connecting plate 63 to move toward the bottom of the cavity of the movable groove 65, and at the same time squeeze the elastic rod 62. The elasticity of the elastic rod 62 will buffer the gravity. As more packaging boxes fall into the storage box 61, the position of the storage box 61 will also move downward, so that the storage box 61 can accommodate more packaging boxes and the position of the topmost packaging box is always consistent, which is convenient for the staff to operate.

[0038] The lower end of the carrying plate 21 is fixedly connected with a movable block 7, which passes through the upper wall of the body 1, and the movable block 7 is slidably connected to the upper wall of the body 1. The lower end of the movable block 7 is fixedly connected with a gear rod main body 8. Two groups of connecting disks 10 are fixedly connected to the outer wall of the body 1 on one side close to the cling film winding roller 5. A lower rotating rod 9 is rotatably connected between the two groups of connecting disks 10. The outer wall of the lower rotating rod 9 is fixedly connected with a first gear 11, and one side of the first gear 11 is meshedly connected with a second gear 12. The second gear 12 is rotatably connected to the inner wall of the body 1, and the side of the second gear 12 away from the first gear 11 is meshedly connected with the gear rod main body 8. The outer walls of the cling film winding roller 5 and the lower rotating rod 9 are both fixedly connected with a transmission wheel 13, and the outer wall of the transmission wheel 13 is transmission-connected with a transmission belt 14. The cling film winding roller 5 and the lower rotating rod 9 can rotate synchronously through the cooperation of the transmission wheel 13 and the transmission belt 14.

[0039] Specifically, when the cling film winding roller 5 rotates, the transmission wheel 13 and the transmission belt 14 will cooperate to drive the lower rotating rod 9 to rotate synchronously. At this time, the lower rotating rod 9 will drive the first gear 11 to rotate, and the first gear 11 will drive the toothed rod body 8 to move upward through the cooperation with the second gear 12, thereby driving the movable block 7 to move upward through the toothed rod body 8, so that the movable block 7 drives the carrying plate 21 to move closer to the vacuum extrusion disk 3. Therefore, when the lamination is completed, the lamination packaging of the packaging box is completed at the same time, and the work efficiency is extremely high. After packaging, the cling film winding roller 5 is driven by the motor to rotate in the opposite direction. Similarly, the movable block 7 drives the carrying plate 21 to move downward. After the carrying plate 21 returns to its original position, the cling film winding roller 5 will roll up the excess cling film to avoid unnecessary waste.

[0040] In order to further better explain the above embodiment, the present invention also provides an implementation scheme, a method for implementing a tray-type fruit and vegetable fresh-keeping packaging machine, comprising the following steps:

[0041] Step 1: Put the fruits and vegetables into the packaging box, and then put the packaging box into the cavity of the carrier plate 21. At this time, the top block body 24 will be squeezed by the packaging box, and the top block body 24 will drive the sliding block 25 to move on the inner wall of the sliding channel 23. When the packaging box is completely in the carrier plate 21, the top block body 24 is attached to the inner wall of the carrier plate 21, and the external support spring 26 is pressed by the sliding block 25. At this time, the locking plate 22 is locked. At this time, the cling film winding roller 5 is externally connected to the motor. When the cling film winding roller 5 rotates, it pulls the cling film, and the cling film completely covers the packaging box;

[0042] Step 2: When the cling film winding roller 5 rotates, the transmission wheel 13 and the transmission belt 14 cooperate to drive the lower rotating rod 9 to rotate synchronously. At this time, the lower rotating rod 9 drives the first gear 11 to rotate. The first gear 11 drives the gear rod body 8 to move upward through the cooperation with the second gear 12, thereby driving the movable block 7 to move upward through the gear rod body 8, so that the movable block 7 drives the bearing plate 21 to move closer to the vacuum extrusion disk 3. Therefore, when the film coating is completed, the film coating and packaging of the packaging box are completed at the same time, and the cling film winding roller 5 is driven by the motor to rotate in the opposite direction. Similarly, the movable block 7 drives the bearing plate 21 to move downward. After the bearing plate 21 returns to its original position, the cling film winding roller 5 will roll up the excess cling film;

[0043] Step 3: Finally, open the locking plate 22. At this time, the reaction force given to the sliding block 25 by the external support spring 26 in the compressed state drives the top block body 24 to instantly push the packaging box back, thereby pushing the packaging box into the collection component 6 to complete the material collection.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tray-type fruit and vegetable fresh-keeping packaging machine, comprising a machine body (1), and a loading tray assembly (2) arranged on the upper wall of the machine body (1), wherein the upper end of the tray assembly (2) is provided with a vacuum extrusion plate (3) mounted on the side wall of the machine body (1), characterized in that: A connecting frame (4) is installed on one side of the machine body (1), and a cling film reel (5) is rotatably connected to the inner wall of the connecting frame (4); a collecting assembly (6) is provided at one end of the machine body (1) away from the connecting frame (4); The tray assembly (2) comprises a bearing plate (21) arranged on the upper wall of the body (1), and a locking plate (22) axially connected to one side of the bearing plate (21); a sliding channel (23) is provided on the upper wall of the bearing plate (21); a top block body (24) is provided on the upper wall of the sliding channel (23); a sliding block (25) is fixedly connected to the lower end of the top block body (24); the sliding block (25) is slidably connected to the inner wall of the sliding channel (23); one end of the sliding block (25) is fixedly connected to an external support spring (26); and one end of the external support spring (26) away from the sliding block (25) is fixedly connected to the inner wall of the sliding channel (23).

2. A tray-type fruit and vegetable fresh-keeping packaging machine as claimed in claim 1, characterized in that: The carrying plate (21) is used to carry the packaging box, and when the packaging box is completely in the carrying plate (21), the top block body (24) is in contact with the inner wall of the carrying plate (21).

3. A tray-type fruit and vegetable fresh-keeping packaging machine as claimed in claim 2, characterized in that: When the top block body (24) is attached to the inner wall of the bearing plate (21), the outer support spring (26) is pressed by the sliding block (25).

4. The tray-type fruit and vegetable fresh-keeping packaging machine according to claim 1, characterized in that: The collecting assembly (6) comprises a storage box (61) overlapped on one side of the machine body (1); the lower end of the storage box (61) is fixedly connected to an elastic rod (62) and a connecting plate (63); the lower ends of the elastic rod (62) and the connecting plate (63) are provided with a lower connecting plate (64); and the upper wall of the lower connecting plate (64) is provided with a movable groove (65).

5. A tray-type fruit and vegetable fresh-keeping packaging machine as claimed in claim 4, characterized in that: The connecting plate (63) is slidably connected to the inner wall of the movable groove (65).

6. A tray-type fruit and vegetable fresh-keeping packaging machine as claimed in claim 5, characterized in that: The lower end of the bearing plate (21) is fixedly connected to a movable block (7), the movable block (7) passes through the upper wall of the machine body (1), and the movable block (7) is slidably connected to the upper wall of the machine body (1), and the lower end of the movable block (7) is fixedly connected to a gear rod body (8).

7. A tray-type fruit and vegetable fresh-keeping packaging machine as claimed in claim 6, characterized in that: Two groups of connection disks (10) are fixedly connected to the outer wall of one side of the machine body (1) close to the cling film winding roller (5), a lower rotating rod (9) is rotatably connected between the two groups of connection disks (10), and a first gear (11) is fixedly connected to the outer wall of the lower rotating rod (9).

8. The tray-type fruit and vegetable fresh-keeping packaging machine according to claim 7, characterized in that: One side of the first gear (11) is meshedly connected with a second gear (12), the second gear (12) is rotatably connected to the inner wall of the machine body (1), and the side of the second gear (12) away from the first gear (11) is meshedly connected to the gear rod body (8).

9. A tray-type fruit and vegetable fresh-keeping packaging machine as claimed in claim 8, characterized in that: The outer walls of the cling film winding roller (5) and the lower rotating rod (9) are both fixedly connected with a transmission wheel (13), and the outer wall of the transmission wheel (13) is transmission-connected with a transmission belt (14). The cling film winding roller (5) and the lower rotating rod (9) can rotate synchronously through the cooperation of the transmission wheel (13) and the transmission belt (14).

10. A method for implementing the tray-type fruit and vegetable fresh-keeping packaging machine according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Fruits and vegetables are placed in a packaging box, and then the packaging box is placed in the cavity of the carrier plate (21). At this time, the top block body (24) is squeezed by the packaging box, and the top block body (24) is used to drive the sliding block (25) to move on the inner wall of the sliding channel (23). When the packaging box is completely in the carrier plate (21), the top block body (24) is in contact with the inner wall of the carrier plate (21), and the external support spring (26) is pressed by the sliding block (25). At this time, the locking plate (22) is locked. At this time, the cling film winding roller (5) is externally connected to a motor. When the cling film winding roller (5) rotates, the cling film is pulled, and the cling film completely covers the packaging box; S2: When the cling film winding roller (5) rotates, the transmission wheel (13) and the transmission belt (14) cooperate to drive the lower rotating rod (9) to rotate synchronously. At this time, the lower rotating rod (9) drives the first gear (11) to rotate. The first gear (11) drives the gear rod body (8) to move upward through the cooperation with the second gear (12), thereby driving the movable block (7) to move upward through the gear rod body (8), so that the movable block (7) drives the bearing plate (21) to move closer to the vacuum extrusion plate (3). Therefore, when the film coating is completed, the film coating packaging of the packaging box is completed at the same time, and the cling film winding roller (5) is driven by the motor to rotate in the opposite direction. Similarly, the movable block (7) drives the bearing plate (21) to move downward. After the bearing plate (21) returns to its original position, the cling film winding roller (5) will roll up the excess cling film; S3: Finally, the locking plate (22) is opened. At this time, the reaction force given to the sliding block (25) by the external support spring (26) in the compressed state drives the top block body (24) to instantly push the packaging box back, thereby pushing the packaging box into the collection component (6) to complete the material collection.

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