CN113184281B

CN113184281B - Automatic cover net equipment for packing

Info

Publication number: CN113184281B
Application number: CN202110337759.9A
Authority: CN
Inventors: 黄学文; 孙良; 林云格; 信嘉程
Original assignee: Zhejiang Sci Tech University ZSTU
Current assignee: Zhejiang Sci Tech University ZSTU
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2022-09-16
Anticipated expiration: 2041-03-30
Also published as: CN113184281A

Abstract

The invention discloses an automatic net-sleeving packaging device, which mainly comprises: the bag feeding mechanism, the sliding block and clamping hand combined mechanism, the rocker guide rail mechanism, the fixed guide rail mechanism, the mesh bag cutting mechanism, the mesh bag tying device, the sorting and feeding device and the rotating central shaft are combined, the rocker guide rail mechanism is arranged at the top end of the rotating central shaft, the fixed guide rail mechanism is arranged below the rocker guide rail mechanism and is matched and connected with the rocker guide rail mechanism through the sliding block and clamping hand combined mechanism, the fixed guide rail mechanism is fixedly connected with the equipment body, and the bag feeding mechanism is fixedly connected with the equipment body and is arranged right above the rocker guide rail mechanism; the automatic net-sleeving packaging equipment is ingenious in design and rapid in net-sleeving action, can be used for packaging various articles in net bags, achieves automatic bag feeding and cutting of the net bags and automatic opening and closing of the openings of the net bags, enables the product packaging to be more convenient and rapid, improves the production efficiency and reduces the labor cost.

Description

Automatic cover net equipment for packing

Technical Field

The invention relates to the field of agricultural machinery, in particular to automatic net sleeving and packaging equipment.

Background

Packaging is a prerequisite for the entry of products into the field of circulation. With the progress of science and technology, the application of high-automation packaging machinery in product production is more and more developed. Compared with the traditional manual production package, the packaging machine has the remarkable advantages of higher labor productivity, lower production cost, better and more stable production quality and the like.

Garlic is in great demand as one of the important commercial crops. The production and packaging of the utility model are mainly manual processing at present, the labor cost of the production and packaging is high, and the operation efficiency is low.

Disclosure of Invention

The invention aims to provide automatic net sleeving and packaging equipment, which solves the problems of net sleeving and packaging of products.

The invention is realized in this way, an automatic net-sleeving packaging device, which mainly comprises: the bag feeding mechanism, the slider clamping hand combination mechanism, the rocker guide rail mechanism, the fixed guide rail mechanism, the mesh bag cutting mechanism, the mesh bag opening tying equipment, the sorting feeding equipment and the rotating central shaft are combined to form the bag feeding mechanism, the rocker guide rail mechanism is arranged at the top end of the rotating central shaft, the fixed guide rail mechanism is arranged below the rocker guide rail mechanism and is in matched connection with the rocker guide rail mechanism through the slider clamping hand combination mechanism, the fixed guide rail mechanism is fixedly connected with the equipment body, the bag feeding mechanism is fixedly connected with the equipment body and is arranged right above the rocker guide rail mechanism, the mesh bag cutting mechanism and the mesh bag opening tying equipment are arranged at the lower end of the fixed guide rail mechanism, and the sorting feeding equipment is arranged below the discharge port.

The further technical scheme of the invention is as follows: the bag feeding mechanism mainly comprises: net bag book, net bag, friction area, cylinder, go up bag mechanism frame, net bag book motor and cylinder motor combination and form, the net bag book passes through the net bag roll motor with go up bag mechanism frame and connect, the friction area cover is established on the cylinder, the cylinder passes through the cylinder motor with go up bag mechanism frame and connect, the net bag sets up the net bag book with between the cylinder.

The further technical scheme of the invention is as follows: the slider tong combined mechanism mainly comprises: the sliding block assembly comprises a second sliding block, a primary and secondary screw, a first sliding block frame, a first sliding block, a second sliding block frame, a clamping hand, a bolt group and a screw group, wherein the second sliding block is connected with the first sliding block frame through the primary and secondary screw, the first sliding block frame is connected with the first sliding block through the bolt group, the bottom of the first sliding block is connected with the second sliding block frame, the second sliding block frame is connected with the clamping hand through the screw group, the second sliding block is matched with a rocker guide rail mechanism, and the first sliding block is matched with a fixed guide rail mechanism.

The further technical scheme of the invention is as follows: the rocker guide rail mechanism mainly comprises: the rocker guide rail, the speed reducer, the coupler and the rocker guide rail motor are combined, and the rocker guide rail is connected with the rocker guide rail motor through the speed reducer and the coupler.

The further technical scheme of the invention is as follows: the fixed guide rail mechanism mainly comprises: the fixed guide rail and the dismounting part are combined to form the fixed guide rail, the fixed guide rail is connected with the equipment body through the dismounting part, and the fixed guide rail is concentric with the rocker guide rail.

The further technical scheme of the invention is as follows: the mesh bag cutting mechanism mainly comprises: the net bag cutting machine is combined with the screw group, and the net bag cutting machine is connected with the fixed guide rail mechanism through the screw group II.

The further technical scheme of the invention is as follows: the mesh bag tying device is arranged below the fixed guide rail mechanism and matched with the mesh bag cutting machine.

The invention further adopts the technical scheme that: the space between the guide rails on the two sides of the fixed guide rail is different.

The invention has the beneficial effects that: the automatic net-sleeving packaging equipment is ingenious in design and rapid in net-sleeving action, can be used for packaging various articles in net bags, achieves automatic bag feeding and cutting of the net bags and automatic opening and closing of the openings of the net bags, enables the product packaging to be more convenient and rapid, improves the production efficiency and reduces the labor cost.

Drawings

FIG. 1 is a schematic view of the working process of an automatic net-covering packaging device provided by the invention;

FIG. 2 is a schematic view of the working states of the rocker guide rail and the fixed guide rail of the automatic net sleeving and packaging device provided by the invention;

FIG. 3 is a schematic structural diagram of a slide block and clamping hand combination mechanism of an automatic net sleeving and packaging device provided by the invention;

FIG. 4 is a schematic diagram showing the positional relationship between the slider and gripper combination mechanism, the rocker guide rail mechanism and the fixed guide rail mechanism of the automatic net-sleeving packaging device provided by the invention;

FIG. 5 is a schematic structural diagram of a bag feeding mechanism of an automatic net-sleeving and packaging device provided by the invention;

FIG. 6 is a schematic structural diagram of a rocker guide rail mechanism of an automatic net-sleeving and packaging device provided by the invention;

FIG. 7 is a schematic structural diagram of a fixed guide rail mechanism of an automatic net-sleeving and packaging device provided by the invention;

FIG. 8 is a schematic view of the position relationship of the mesh bag cutting mechanism of the automatic mesh covering and packaging device provided by the invention;

fig. 9 is a schematic diagram of the stations and the working positions of the automatic net-sleeving and packaging equipment provided by the invention.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

The first embodiment is as follows: fig. 1-9 show an automatic net wrapping apparatus having: a roller 12b, the outer surface of the roller 12b is designed to be suitable for sleeving the elastic friction belt 12a on the roller 12b, the rollers 12b roll oppositely in pairs, and the plurality of roller pairs 12 are matched in groups to roll the opening of the mesh bag 11b drawn from the mesh bag roll 11a to the direction of each roller pair 12; the clamping hands 26 can be opened or closed to release or clamp one corner of the rolled mesh bag 11b of the roller pair 12, when the clamping hands 26 are closed, one corner of the mesh bag 11b can be driven to move, and the displacement of the multiple groups of clamping hands 26 can be matched to realize the opening or closing of the mouth of the mesh bag 11 b; the first sliding block 24 is connected with the clamping hand 26, and can drive the clamping hand 26 to move from a first station 80a to a fourth station 80d through a second station 80b and a third station 80c along the track of the fixed guide rail 41, and then move back to the first station 80a from the fourth station 80 d; the second sliding block 21 is connected with the first sliding block 24, can drive the first sliding block 24 to synchronously reciprocate between a first position 90a and a third position 90c on the rocker guide rail 31 along the track of the rocker guide rail 31, can pass through a second position 90b on the rocker guide rail 31 in the moving process of the second sliding block 21, and can relatively rotate between the sliding blocks; the fixed guide rail 41 is designed to accommodate a plurality of first sliding blocks 24 to move along the fixed guide rail 41, and when the fixed guide rails 41 are matched and the first sliding blocks 24 on the adjacent fixed guide rails 41 move synchronously according to the movement mode of the first sliding blocks 24, the process that the first sliding blocks 24 are continuously and repeatedly close and then far away is carried out; the rocker guide rail 31 is designed to rotate around a rotating central axis 102, is suitable for accommodating a plurality of second sliding blocks 21 to move along the rocker guide rail 31, and can enable the second sliding blocks 21 to continuously and repeatedly approach and then depart from each other when the plurality of rocker guide rails 31 are matched and the second sliding blocks 21 on the adjacent rocker guide rails 31 synchronously move according to the motion mode of the second sliding blocks 21; the rocker guide rail 31 pushes the second slide block 21 group around the rotation central axis 102, the second slide block 21 group drives the first slide block 24 group to move along the fixed guide rail 41, the first slide block 24 group drives the clamping hands 26 group to move so as to convert the motion track of the slide block into the motion track of one corner of the mesh bag 11b, and the clamping hands 26 are matched to realize the displacement, opening and closing of the mesh bag 11 b; and the mesh bag cutting mechanism 5 is used for cutting the mesh bag 11b above the position where the clamping hands 26 clamp the mesh bag 11 b.

Specifically, a portion of the package is described, as shown in fig. 1, fig. 2 and fig. 5, four pairs of rollers 12b are located at the same height and are uniformly distributed, the engagement points of the rollers 12 on the same horizontal plane are connected to each other to form a square, the axis of the roller 12b and the horizontal plane keep a certain included angle, for example, 45 °, so as to prevent the mesh bag 11b from being folded and hung down again after being rolled out, the sliding block and gripper combination mechanism 2 is located at a first position 90a and at a first position 80a in the starting state, and the grippers 26 are each located right below one of the rollers 12; a mesh bag roll motor 14 drives a mesh bag roll 11a to rotate clockwise at a specified speed to unwind a mesh bag 11b, the roller pairs 12 are respectively rolled into one corner of the mesh bag 11b, a roller motor 15 drives two rollers 12b in the roller pairs 12 to rotate oppositely to drag one corner of the mesh bag 11b to a square corner formed by four roller pairs 12, and the mesh bag roll 11a is matched with the roller pairs 12 to lower the mesh bag 11 b. The mesh bag roll motor 14 and the roller motor 15 respectively control the mesh bag roll 11a and the roller 12b to stop rotating by the mesh bag length required by product packaging.

Then, as shown in fig. 1, 3 and 4, the mesh bag 11b passes through the gap between the rocker guide rail and the fixed guide rail, and is lowered below the clamp 26 until the mesh bag 11b reaches the mesh bag length required by product packaging, at this time, the mesh bag roll motor 14 and the roller motor 15 respectively control the mesh bag roll 11a and the roller 12b to stop rotating, and the clamp 26 is closed to clamp the mesh bag 11b, thereby completing bag feeding.

Then, as shown in fig. 1, fig. 2 and fig. 6, the rocker guide rail motor 34 controls the output rotation speed through the coupler 33 and the speed reducer 32 to drive the rocker guide rail 31 to rotate around the rotation central axis 102, and push the slider-gripper assembly 2 to move from the first station 80a to the second station 80b along the fixed guide rail 41, and simultaneously move from the first position 90a to the second position 90b along the rocker guide rail 31 and stop. Further, as shown in fig. 1, fig. 2, fig. 7 and fig. 8, during the movement of the slider-gripper combination mechanism 2, the gripper 26 carries the mesh bag 11b through the electric heating blade of the electric heating mesh bag cutter 51, and the mesh bag 11b is cut off, thereby completing the mesh bag cutting.

Next, as shown in fig. 1, 2 and 9, when the slider-gripper combination mechanism 2 is located at the second station 80b on the fixed rail 41 and at the same time is located at the second position 90b on the rocker rail 31, the pocket mouths of the mesh pockets 11b clamped by the grippers 26 under the four sets of slider-gripper combination mechanisms 2 are folded to the minimum, so as to complete the tying work.

Next, as shown in fig. 1, 2 and 6, the rocker guide motor 34 controls the output rotation speed through the coupler 33 and the reducer 32 to drive the rocker guide 31 to rotate around the rotation central axis 102, and push the slider-gripper assembly 2 to move from the second position 80b to the third position 80c along the fixed guide 41, and simultaneously move from the second position 90b to the third position 90c along the rocker guide 31 and stop. Further, as shown in fig. 1, 2 and 9, when the slider-gripper combination mechanism 2 is located at the third position 90c on the rocker guide rail 31 at the same time when the third position 80c is located on the fixed guide rail 41, the mouths of the mesh bags 11b clamped by the grippers 26 under the four groups of slider-gripper combination mechanisms 2 are opened to the maximum, so that the product feeding work is conveniently completed.

Next, as shown in fig. 1, 2 and 6, the rocker guide motor 34 controls the output rotation speed through the coupler 33 and the reducer 32 to drive the rocker guide 31 to rotate around the rotation central axis 102, and push the slider-gripper assembly 2 to move from the third position 80c to the fourth position 80d along the fixed guide 41, and simultaneously move from the third position 90c to the second position 90b along the rocker guide 31 and stop. Further, as shown in fig. 7, when the slider-gripper combination mechanism 2 is located at the second position 80b on the fixed rail 41 and at the second position 90b on the rocker rail 31, the openings of the mesh bags 11b clamped by the grippers 26 under the four slider-gripper combination mechanisms 2 are folded to the minimum, which is convenient for completing the tying operation.

Then, as shown in fig. 1 and fig. 3, the clamping hands 26 of the four sets of slider clamping hand combination mechanisms 2 are opened, and the mesh bag 11b together with the packaged product 71 is released and falls into the discharge port 101, thereby completing the discharge.

Next, as shown in fig. 1, 3 and 6, the rocker guide motor 34 controls the output rotation speed through the coupler 33 and the reducer 32 to drive the rocker guide 31 to rotate around the rotation central axis 102, and push the slider-gripper assembly 2 to move from the fourth station 80d to the first station 80a along the fixed guide 41, and simultaneously move from the second position 90b to the first position 90a along the rocker guide 31 and stop. And then, the automatic mesh bag packaging device of the product enters the working state shown by the first station 90a again, and the process is circulated until the machine is shut down manually or all the mesh bags in the mesh bag roll are used up.

It should be understood that in order to improve the efficiency of the automatic production, the automatic web packaging equipment for products may have a plurality of said rocker guide rails 31 and fixed guide rails 41 operating simultaneously so as to improve the packaging efficiency, and it cannot be regarded that the rocker guide rail mechanism 3 is limited to only six said rocker guide rails 31 or the fixed guide rail mechanism 4 is limited to only three circulating packaging areas.

When the equipment works: the rocker guide rail motor 34 controls the output rotating speed through the coupler 33 and the speed reducer 32, then drives the rocker guide rail 31 to rotate around the rotating central axis 102, and pushes the slider gripper combination mechanism 2 to move to a first station 80a along the fixed guide rail 41, and simultaneously moves to a first position 90a along the rocker guide rail 31 and stops, and at this time, each gripper 26 in the slider gripper combination mechanism 2 group is located under a certain pair of the roller pairs 12; the mesh bag roll motor 14 drives a mesh bag roll 11a to rotate at a specified speed to release a mesh bag 11b, the roller pairs 12 are matched in groups to roll the mesh bag 11b open towards the direction of each roller pair 12, when the mesh bag 11b is placed under the clamping hands 26 and the length of the mesh bag meets the requirement of the packaging specification, the mesh bag roll 11a and the roller pairs 12 stop rotating, and the clamping hands 26 under each roller pair 12 are folded to clamp one corner of the mesh bag 11b, so that the mesh bag feeding is completed; after the bag feeding of the net bag is finished, the rocker guide rail motor 34 controls the output rotating speed through the coupler 33 and the speed reducer 32 and then drives the rocker guide rail 31 to rotate around the rotating central axis 102, and pushes the sliding block and clamping hand combined mechanism 2 to move from a first station 80a to a second station 80b along the fixed guide rail 41, and meanwhile, the sliding block and clamping hand combined mechanism moves from a first position 90a to a second position 90b along the rocker guide rail 31 and then stops, at the moment, the bag opening of the net bag 11b clamped by the clamping hand 26 group is folded to be minimum, and the net bag 11b passes through the electric heating type net bag cutting machine 51 fixed below the fixed guide rail 41 during moving, so that the net bag cutting is finished; then, the mesh bag tying device 6 for butting the automatic product mesh covering and packaging devices ties one end, away from the end clamped by the clamping hand 26, of the mesh bag 11 b; after the tying is finished, the rocker guide rail motor 34 controls the output rotating speed through the coupler 33 and the speed reducer 32 and then drives the rocker guide rail 31 to rotate around the central rotating axis 102, and pushes the slider and gripper combination mechanism 2 to move from the second station 80b to the third station 80c along the fixed guide rail 41, and simultaneously moves from the second position 90b to the third position 90c along the rocker guide rail 31 and then stops, at this time, the mouth of the mesh bag 11b clamped by the gripper 26 group is opened to the maximum, and the required number of products 71 released by the product sorting and feeding equipment 7 for the automatic product mesh packaging equipment docking fall into the mesh bag 11b, so that the product feeding is finished; after the product feeding is finished, the rocker guide rail motor 34 controls the output rotating speed through the coupler 33 and the speed reducer 32 and then drives the rocker guide rail 31 to rotate around the rotating central axis 102, and pushes the slider and gripper combination mechanism 2 to move from the third position 80c to the fourth position 80d along the fixed guide rail 41, and simultaneously moves from the third position 90c to the second position 90b along the rocker guide rail 31 and then stops, the bag opening of the mesh bag 11b clamped by the gripper 26 group is folded to be minimum, and the mesh bag tying device 6 for butting of the automatic product mesh covering and packaging device ties one end of the mesh bag 11b clamped by the gripper 26 group; after the tying is finished, the group of clamping hands 26 is opened to release the mesh bag 11b, and the mesh bag 11b with the packaged product 71 falls into the discharge hole 101; after the discharging is finished, the rocker guide rail motor 34 drives the rocker guide rail 31 to rotate around the central rotation axis 102 after controlling the output rotation speed through the coupler 33 and the speed reducer 32, and pushes the slider and gripper combination mechanism 2 to move from the station four 80d to the station one 80a along the fixed guide rail 41, and simultaneously moves from the second position 90b to the first position 90a along the rocker guide rail 31 and then stops, and then the automatic mesh bag packaging device of the product enters a new working cycle until the product is shut down manually or all mesh bags in the mesh bag roll are used up.

It should be understood that, in order to improve the efficiency of the automatic production, the automatic web packaging apparatus for products may have a plurality of the rocker rails 31 and the fixed rails 41 operating simultaneously so as to improve the packaging efficiency. In a preferred embodiment of the present invention, the rocker guide rail mechanism 3 for the automatic product web packaging device can have six sets of the rocker guide rails 31, and the fixed guide rail mechanism 4 can have three circulating packaging areas.

When the automatic product netting and packaging equipment is used for the first time after being newly purchased or after the mesh bag roll 11a is used up, the mesh bag 11b is pulled out of the mesh bag roll 11a, corners are manually separated from the mesh bag 11b according to the number of the roller pairs 12, and each corner of the mesh bag 11b penetrates through a gap between the rollers in the roller pairs 12.

It should be understood that the manner of splitting the steps of the packaging method described above is not limited to that described above. In the present invention, the product packaging is a continuous cycle and there is no distinct start or end point. That is, the product packaging method can be paused at any point in time and can continue to operate from any point of pause without requiring any manual intervention. In other words, any point in time during the entire cycle can be considered as the beginning of the product package. In addition, many of the steps described above in the present invention are not explicitly described in a sequential order, but rather in a parallel relationship. Therefore, the technical solutions generated by replacing the starting points of the steps or disordering certain sequences are all within the protection scope of the present invention.

According to another two aspects of the invention, the invention also provides a product sorting and feeding device and a mesh bag tying device, wherein the product sorting and feeding device and the mesh bag tying device comprise any one of the devices for automatically covering and packaging products. By adopting the product sorting and feeding equipment and the mesh bag tying equipment, the products can be automatically sorted after being poured into the feeding port of the product sorting and feeding equipment, the products are fed one by one according to the required specification and quantity of product packages, meanwhile, the mesh bag is folded and positioned at the needed tying port to be tied, and then the mesh bag is tied, and is matched with the automatic product sleeving and packaging equipment to form the final product. The whole process of feeding, netting and net bag tying is carried out automatically, continuously and continuously without any manual intervention, and the production efficiency can be greatly improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. An automatic net sleeving and packaging device is characterized by mainly comprising: the bag feeding mechanism (1), the sliding block and clamping hand combined mechanism (2), the rocker guide rail mechanism (3), the fixed guide rail mechanism (4), the mesh bag cutting mechanism (5), the mesh bag tying equipment (6), the sorting and feeding equipment (7) and the rotating central shaft (102) are combined, the rocker guide rail mechanism (3) is arranged at the top end of the rotating central shaft (102), the fixed guide rail mechanism (4) is arranged below the rocker guide rail mechanism (3) and is matched and connected with the rocker guide rail mechanism (3) through the sliding block and clamping hand combined mechanism (2), the fixed guide rail mechanism (4) is fixedly connected with the equipment body, the bag feeding mechanism (1) is fixedly connected with the equipment body and is arranged right above the rocker guide rail mechanism (3), and the mesh bag cutting mechanism (5) and the mesh bag tying equipment (6) are both arranged at the lower end of the fixed guide rail mechanism (4), the sorting and feeding equipment (7) is arranged below the discharge hole (101);

the bag feeding mechanism (1) mainly comprises: the net bag rolling machine is characterized by comprising a net bag roll (11a), a net bag (11b), a friction belt (12a), a roller (12b), a bag feeding mechanism rack (13), a net bag roll motor (14) and a roller motor (15) which are combined, wherein the net bag roll (11a) is connected with the bag feeding mechanism rack (13) through the net bag roll motor (14), the friction belt (12a) is sleeved on the roller (12b), the roller (12b) is connected with the bag feeding mechanism rack (13) through the roller motor (15), and the net bag (11b) is arranged between the net bag roll (11a) and the roller (12 b);

the slider clamping hand combination mechanism (2) mainly comprises: the second sliding block (21), a primary-secondary screw (22), a first sliding block frame (23), a first sliding block (24), a second sliding block frame (25), a clamping hand (26), a bolt group (27) and a screw group (28) are combined, the second sliding block (21) is connected with the first sliding block frame (23) through the primary-secondary screw (22), the first sliding block frame (23) is connected with the first sliding block (24) through the bolt group (27), the bottom of the first sliding block (24) is connected with the second sliding block frame (25), the second sliding block frame (25) is connected with the clamping hand (26) through the screw group (28), the second sliding block (21) is matched with the rocker guide rail mechanism (3), and the first sliding block (24) is matched with the fixed guide rail mechanism (4);

the rocker guide rail mechanism (3) mainly comprises: the rocker guide rail motor is characterized by comprising a rocker guide rail (31), a speed reducer (32), a coupling (33) and a rocker guide rail motor (34), wherein the rocker guide rail (31) is connected with the rocker guide rail motor (34) through the speed reducer (32) and the coupling (33);

the fixed guide rail mechanism (4) mainly comprises: the fixed guide rail (41) and the dismounting part (42) are combined, the fixed guide rail (41) is connected with the equipment body through the dismounting part (42), and the fixed guide rail (41) is concentric with the rocker guide rail (31);

the first sliding block (24) drives the clamping hand (26) to move from the first station to the fourth station through the second station and the third station along the track of the fixed guide rail (41), and then the clamping hand moves back to the first station from the fourth station; the second sliding block (21) drives the first sliding block (24) to synchronously reciprocate between a first position and a third position on the rocker guide rail (31) along the track of the rocker guide rail (31); when a plurality of fixed guide rails (41) are matched and first sliding blocks (24) on the adjacent fixed guide rails (41) synchronously move according to the movement mode of the first sliding blocks (24), the first sliding block group is continuously and repeatedly close and then far away; when the rocker guide rails (31) are matched and the second sliding blocks (21) on the adjacent rocker guide rails (31) synchronously move according to the movement mode of the second sliding blocks (21), the second sliding block group continuously and repeatedly approaches and then moves away.

2. An automatic net-covering and packaging device according to claim 1, wherein the net bag cutting mechanism (5) is mainly composed of: the net bag cutting machine (51) is combined with the second screw group (52), and the net bag cutting machine (51) is connected with the fixed guide rail mechanism (4) through the second screw group (52).

3. An automatic net-covering packaging device according to claim 2, characterized in that the net bag tying device (6) is arranged below the fixed guide rail mechanism (4) and is matched with the net bag cutting machine (51).

4. An automatic screen packaging device according to claim 3, characterized in that the spacing between the rails on both sides of the fixed rail (41) is different.